JP6588777B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner that air-conditions a plurality of zones in a space to be air-conditioned.

  An air-conditioning target space such as an office has a plurality of zones such as an interior zone and a perimeter zone, and the air conditioner supplies a plurality of zones by supplying air temperature-controlled by a temperature control unit to the plurality of zones. Air-condition the zone.

  In an air-conditioning target space having an interior zone and a perimeter zone, not only when the interior zone and the perimeter zone have the same air conditioning requirements, for example, in the winter season, there is a cooling requirement in the interior zone, and a heating requirement in the perimeter zone. There may be cases where air conditioning requirements are different in a plurality of zones.

  Therefore, conventionally, an interior system that supplies air from the air-conditioning target space to the interior zone by the first temperature control unit by the ventilation action of the first fan, and the air from the air-conditioning target space by the second fan ventilation function. There has been proposed an air conditioner including a perimeter system that regulates the temperature of air at a second temperature control unit and supplies the air to a perimeter zone (see, for example, Patent Documents 1 and 2). In the air conditioners described in Patent Documents 1 and 2, the perimeter zone can be heated by the perimeter system while the interior zone is cooled by circulating the air separately in the interior system and the perimeter system.

  In the air-conditioning target space, ventilation is also necessary. In order to respond to this, the air conditioner described in Patent Document 1 exhausts part of the air from the air-conditioning target space to the outside and mixes the outside air with the interior system. By supplying outside air to the interior zone, the air-conditioned space is ventilated. Even in the air conditioner described in Patent Document 2, ventilation of the air-conditioning target space is performed by exhausting part of the air from the air-conditioning target space to the outside and mixing the external air into the perimeter system and supplying the external air to the perimeter zone. Is going.

Japanese Patent No. 4525246 Japanese Patent Publication No. 8-3368

  In the above air conditioner, for example, when there is an air conditioning request only from the interior zone or the perimeter zone, and in order to save energy, not only the temperature control section of both the interior system and the perimeter system is operated, but also the interior system Therefore, it is also required to operate only one temperature control section of the perimeter system for air conditioning.

  However, if the outside air is mixed in the interior system as in the air conditioner described in Patent Document 1, the outside air cannot be mixed into the perimeter system when air conditioning is performed by operating only the temperature control unit of the perimeter system. Therefore, outside air cannot be supplied to the air-conditioning target space, and the air-conditioning target space cannot be ventilated. In addition, when the outside air is mixed in the perimeter system as in the air conditioner described in Patent Document 2, the outside air cannot be mixed into the interior system when only the temperature control unit of the interior system is operated for air conditioning. Therefore, outside air cannot be supplied to the air-conditioning target space, and the air-conditioning target space cannot be ventilated.

  In view of this situation, a main problem of the present invention is to provide an air conditioner that can appropriately ventilate the air-conditioning target space while appropriately cooling and heating the air-conditioning target space.

The first characteristic configuration of the present invention includes a first system that regulates the temperature of air from the air-conditioning target space by the first temperature control unit by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space An air conditioner comprising: a second system that supplies air to the second zone of the air-conditioning target space by adjusting the temperature of the air from the air-conditioning target space by the second temperature control unit by the ventilation action of the second fan;
The air-conditioning target space is a space having the first zone and the second zone that are not partitioned,
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit that can be switched to a second outside air supply state that supplies outside air to the upstream side is provided.

  According to this characteristic configuration, by switching the outside air supply state switching unit to the first outside air supply state, the outside air is mixed with the air from one of the first zone and the second zone and supplied to the first temperature adjustment unit, The air temperature-controlled by the first temperature control unit can be supplied to the air-conditioning target space. Further, by switching the outside air supply state switching unit to the second outside air supply state, the outside air is mixed with the air from the other of the first zone and the second zone and supplied to the second temperature adjustment unit, and the second temperature adjustment unit is supplied. The temperature-controlled air can be supplied to the air-conditioning target space.

  Thereby, when operating both the 1st temperature control part and the 2nd temperature control part and air-conditioning the space to be air-conditioned, the outside air supply state switching part is switched to the first outside air supply state or the second outside air supply state. In addition to not only cooling and heating of the air-conditioning target space but also ventilation, it is possible to supply outside air even when only one of the first temperature control unit and the second temperature control unit is operated to air-condition the air-conditioning target space. By switching the state switching unit to the first outside air supply state or the second outside air supply state, not only cooling and heating of the air-conditioning target space but also ventilation can be performed appropriately.

According to a second characteristic configuration of the present invention, the apparatus main body includes a first return air chamber that is connected to the first temperature control unit and supplies air from one of the first zone and the second zone; A second return air chamber that is connected to the second temperature control unit and supplies air from the other of the first zone and the second zone, and an outside air chamber that supplies outside air are partitioned and formed.
The outside air supply state switching unit switches between the first return air chamber and the outside air chamber and between the second return air chamber and the outside air chamber between a communication state and a non-communication state, and The point is to switch between the outside air supply state and the second outside air supply state.

  According to this characteristic configuration, the first return air chamber, the second return air chamber, and the outside air chamber are partitioned in the apparatus main body, thereby supplying air from the first and second zones and supplying outside air. It can be properly received by the device body. Accordingly, the outside air supply state switching unit appropriately switches between the first outside air supply state and the second outside air supply state only by providing a simple configuration of switching between the chambers between the communication state and the non-communication state. Can do. Moreover, in the first outside air supply state, the air from one of the first zone and the second zone is mixed with the outside air in the first return air chamber, so that the sufficiently mixed air is mixed in the first temperature control unit. The temperature is adjusted. Therefore, the temperature of the air and the outside air from one of the first zone and the second zone can be uniformly controlled, and the cooling and heating of the first zone can be effectively performed. Further, even in the second outside air supply state, the air from the other of the first zone and the second zone is sufficiently mixed in the second return air chamber, so that the air from the other of the first zone and the second zone is also mixed. The air and the outside air can be uniformly controlled to effectively cool and heat the second zone.

The third characteristic configuration of the present invention is a first system that regulates the temperature of air from the air-conditioning target space by the first temperature control unit by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space; An air conditioner comprising: a second system that supplies air to the second zone of the air-conditioning target space by adjusting the temperature of the air from the air-conditioning target space by the second temperature control unit by the ventilation action of the second fan;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
The apparatus main body is connected in communication with the first temperature control section and is connected in communication with the first return air chamber for supplying air from one of the first zone and the second zone, and the second temperature control section. A second return air chamber for supplying air from the other of the first zone and the second zone and an outside air chamber for supplying outside air are partitioned,
The outside air supply state switching unit switches between the first return air chamber and the outside air chamber and between the second return air chamber and the outside air chamber between a communication state and a non-communication state, and Switch between the outside air supply state and the second outside air supply state,
A chamber switching portion is provided that can switch between the first return air chamber and the second return air chamber between a communication state and a non-communication state.

  According to this characteristic configuration, the chamber switching section switches the communication between the first return air chamber and the second return air chamber so that the first return air chamber can be switched to the second return air chamber or the second return air chamber. Air can be supplied from the air chamber to the first return air chamber. As a result, air from both the first zone and the second zone can be supplied to one of the first return air chamber and the second return air chamber, and only one of the first temperature control unit and the second temperature control unit can be supplied. In addition to cooling and heating the air-conditioned space, ventilation can be performed appropriately. In addition, by switching between the first return air chamber and the second return air chamber in the non-communication state by the chamber switching unit, the first temperature is maintained while circulating the air separately in the first zone and the second zone. Both the adjustment unit and the second temperature adjustment unit are operated to appropriately perform ventilation in addition to cooling and heating of the air-conditioning target space. In this way, with a simple configuration that only switches the chamber switching unit, only one of the first temperature control unit and the second temperature control unit is operated, and both the first temperature control unit and the second temperature control unit are operated. It is possible to deal with each of the cases where

A fourth characteristic configuration of the present invention is a first system that regulates the temperature of air from the air-conditioning target space by the first temperature control unit by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space; An air conditioner comprising: a second system that supplies air to the second zone of the air-conditioning target space by adjusting the temperature of the air from the air-conditioning target space by the second temperature control unit by the ventilation action of the second fan;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
Of the first temperature control unit and the second temperature control unit, one is configured to be able to execute both the heating operation and the cooling operation, and the other is configured to be able to execute only the cooling operation,
The outside air supply state switching unit supplies outside air to the temperature control unit to be cooled in a cooling / heating operation in which one of the first temperature control unit and the second temperature control unit is heated and the other is cooled. Therefore, switching to one side of the first outside air supply state and the second outside air supply state, and heating and operating one of the first temperature control unit and the second temperature control unit and stopping the other In the heating operation, in order to supply outside air to the temperature control section that is heated, the operation is switched to the other side of the first outside air supply state and the second outside air supply state.

  According to this feature configuration, since the other of the first temperature control unit and the second temperature control unit can perform only the cooling operation, it is only necessary to provide a configuration that performs only the cooling operation, and simplifies the configuration and reduces costs. Can be achieved. In the cooling / heating operation, the outside air supply state switching unit is switched to one side of the first outside air supply state and the second outside air supply state, and the outside air is supplied to the temperature control unit that performs the cooling operation. Air can be cooled while being utilized, efficient cooling can be performed, and energy saving can be achieved. In addition, since the other of the first temperature control unit and the second temperature control unit can execute only the cooling operation, when performing heating / heating operation, only one of the first temperature control unit and the second temperature control unit is performed. It will be heated. Even in such a case, the outside air supply state switching unit is switched to the other side of the first outside air supply state and the second outside air supply state, and the outside air is supplied to the temperature control unit to be heated. Yes.

  According to a fifth characteristic configuration of the present invention, the outside air supply state switching unit supplies outside air to both the first system and the second system in addition to the first outside air supply state and the second outside air supply state. In the cooling / cooling operation that can be switched to the third outside air supply state and that cools one or both of the first temperature control unit and the second temperature control unit, the outside air is supplied to the temperature control unit that performs the cooling operation. Therefore, it is possible to switch to any one of the first outside air supply state, the second outside air supply state, and the third outside air supply state.

  According to this characteristic configuration, in the cooling / cooling operation, the outside air supply state switching unit is switched to any one of the first outside air supply state, the second outside air supply state, and the third outside air supply state, and the temperature adjustment unit that performs the cooling operation is provided. Since the outside air is supplied, not only when one of the first temperature control unit and the second temperature control unit is cooled, but also when both the first temperature control unit and the second temperature control unit are cooled. The air can be cooled while using the cooling heat of the air to perform efficient cooling, and energy saving can be achieved.

A sixth characteristic configuration of the present invention includes a first system that regulates the temperature of air from the air-conditioning target space by the first temperature control unit by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space; An air conditioner comprising: a second system that supplies air to the second zone of the air-conditioning target space by adjusting the temperature of the air from the air-conditioning target space by the second temperature control unit by the ventilation action of the second fan;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
The apparatus main body is connected in communication with the first temperature control section and is connected in communication with the first return air chamber for supplying air from one of the first zone and the second zone, and the second temperature control section. And a second return air chamber for supplying air from the other of the first zone and the second zone, the first zone as an interior zone, the second zone as a perimeter zone, The air from the second zone is supplied to the return air chamber, and the air from the first zone is supplied to the second return air chamber.

  According to this characteristic configuration, for example, when cooling and heating operation is performed by cooling the first temperature control unit and heating the second temperature control unit, the first return air chamber is supplied from the perimeter zone. By supplying air and supplying air from the interior zone to the second return air chamber, the air from the interior zone and the perimeter zone can be efficiently regulated, and both cooling and heating can be performed efficiently. The air whose temperature has been lowered in the perimeter zone is supplied to the first return air chamber and cooled by the first temperature control unit, so that the temperature-decreased air is cooled by the first temperature control unit. it can. The air that has been used for cooling in the interior zone is supplied to the second return air chamber and heated by the second temperature control unit, so that the temperature-increased air is heated by the first temperature control unit. it can. As a result, the air whose temperature has been lowered can be cooled in the first temperature control section, and the air whose temperature has been increased can be heated in the second temperature control section, so that both cooling and heating can be performed efficiently.

The figure which shows the whole schematic structure of the air conditioner in a 1st air_conditioning | cooling / heating operation. The figure which shows the whole schematic structure of the air conditioner in 2nd air_conditioning | cooling / heating operation. The figure which shows the whole schematic structure of the air conditioner in 1st air_conditioning | cooling and air_conditionaing | cooling operation. The figure which shows the whole schematic structure of the air conditioner in 2nd air_conditioning | cooling / air_conditionaing | cooling operation. The figure which shows the whole schematic structure of the air conditioner in partial cooling operation The figure which shows the whole schematic structure of the air conditioner in heating and heating operation The figure which shows the whole schematic structure of the air conditioner in 1st partial heating operation. The figure which shows the whole schematic structure of the air conditioner in 2nd partial heating operation.

An embodiment of an air conditioner according to the present invention will be described with reference to the drawings.
1-8 has shown the whole schematic structure of the air conditioner 1, the flow path through which air and external air distribute | circulate is shown with a thick line, the flow path through which air and external air do not distribute | circulate is shown with a thin line, and the apparatus which operate | moves Is indicated by a solid line, and a device that does not operate is indicated by a dotted line. Moreover, about the 1st-13th dampers D1-D13, the thing of an open state is shown in white, and the thing of a closed state is shown in black. 1 to FIG. 8 are different only in which flow path is indicated by a thick line, which device is indicated by a solid line, and which damper is indicated by black paint.

  Therefore, first, the overall configuration of the air conditioner 1 according to the present invention will be described based on FIG. 1, then each operation of the air conditioner 1 will be described based on FIGS. 1 to 8, and finally the present invention will be described. A characteristic configuration of the air conditioner 1 will be described.

〔overall structure〕
Hereinafter, based on FIG. 1, the whole structure of the air conditioner 1 which concerns on this invention is demonstrated.
The air conditioner 1 includes a device main body 2 having fans 101 and 201, temperature control units 102 and 202, and the like, and air is circulated between the device main body 2 and the air conditioning target space K to air-condition the air conditioning target space K. Do. The air-conditioning target space K has an interior zone K1 and perimeter zones K2 and K3, and the air conditioner 1 performs air conditioning of the interior zone K1 and the perimeter zones K2 and K3. In this embodiment, there are two perimeter zones, the interior zone is the first zone K1, the first perimeter zone is the second zone K2, and the second perimeter zone is the third zone K3.

  In order to air-condition each of the first zone K1 and the second zone K2, the air conditioner 1 controls the temperature of the air from the air-conditioned space K by the first temperature control unit 102 by the ventilation action of the first fan 101. The first system 100 supplied to the first zone K1 and the second fan 201 ventilate the air from the air-conditioning target space K in the second temperature control unit 202 to supply the temperature to the second zone K2. Two systems 200 are provided.

  The first system 100 includes, in order from the air-conditioning target space K side in the air flow direction, a first return air passage 103 that supplies (returns) air from the second zone K2 to the apparatus main body 2, and the first return air passage 103. A first return air chamber 104 to which air from the first air supply chamber 104, a first filter 105, a first temperature control unit 102, a first fan 101, a first air supply chamber 106 to which air from the first fan 101 is supplied, and A first air supply passage 107 for supplying (supplying air) the air in the first air supply chamber 106 from the apparatus main body 2 to the first zone K1 is provided.

  The second system 200 has a second return air passage 203 for supplying air (return air) from the first zone K1 to the apparatus main body 2 in order from the air-conditioning target space K side in the air flow direction, and the second return air passage 203. The second return air chamber 204, the second filter 205, the second temperature control unit 202, the humidification unit 210, the second fan 201, and the second supply air to which the air from the second fan 201 is supplied. The chamber 206 includes a second air supply path 207 for supplying (supplying) air from the apparatus main body 2 to the second zone K2.

  In the apparatus main body 2, a first return air chamber 104, a first air supply chamber 106, a second return air chamber 204, and a second air supply chamber 206 are partitioned and further a first temperature control unit 102 is installed. The first temperature control chamber 108, the first fan chamber 109 in which the first fan 101 is installed, the second temperature control chamber 208 in which the second temperature control section 202 is installed, and the second fan in which the second fan 201 is installed. The chamber 209 is partitioned.

  As described above, the first return air passage 103 supplies the air from the second zone K2 to the first return air chamber 104, and the second return air passage 203 supplies the air from the first zone K1 to the second air. Since the air is supplied to the return air chamber 204, the air from the second zone K2 is temperature-controlled in the first system 100 and supplied to the first zone K1, and the air from the first zone K1 is supplied in the second system 200. The temperature is adjusted and supplied to the second zone K2. Thereby, in the 1st system | strain 100 and the 2nd system | strain 200, the supply of the air of temperature control object is received from the zone on the opposite side to the zone of the air supply destination of temperature control.

  In addition to the first system 100 and the second system 200, the air conditioner 1 includes a third system 300 that supplies the temperature-controlled air in the apparatus body 2 to the third zone K3. The third system 300 is configured to share a part of the devices and flow paths of the first system 100 and the second system 200. In the third system 300, the air from the air-conditioning target space K is heated by one of the first temperature control unit 102 and the second temperature control unit 202 by the ventilation action of either the first fan 101 or the second fan 201. Adjusted and supplied to the third zone K3.

  The third system 300 is supplied from the third return air passage 301 for supplying air (return air) from the third zone K3 in the air-conditioning target space K to the device main body 2, and from either the first fan 101 or the second fan 201. A third chamber 302 to which air is supplied, and a third air supply path 303 for supplying (supplying) air from the apparatus main body 2 to the third zone K3 are provided.

  The third return air passage 301 is connected to a part of the first return air passage 103 and supplies the air from the third zone K3 in the air-conditioning target space K to the first return air chamber 104 through the first return air passage 103. . The third chamber 302 is defined in the apparatus main body 2 and is connected to the first air supply chamber 106 and the second air supply chamber 206.

  The air conditioner 1 cools and heats the air-conditioning target space K and simultaneously ventilates the air-conditioning target space K. The air conditioner 1 mixes the outside air with the air from the air conditioning target space K, adjusts the temperature of the mixed air, supplies the air to the air conditioning target space K, and exhausts a part of the air from the air conditioning target space K to the outside. By doing so, the air-conditioning target space K is ventilated. The air conditioner 1 includes an outside air supply system 401 that supplies outside air to the air conditioning target space K, and an exhaust system 402 that exhausts part of the air from the air conditioning target space K to the outside.

  The outside air supply system 401 includes an outside air supply path 403 that supplies outside air to the apparatus main body 2, an outside air supply fan 404 disposed in the outside air supply path 403, and an outside air chamber 405 that is supplied with air from the outside air supply path 403. And part of the flow paths of the first system 100 and the second system 200. The outside air chamber 405 is defined in the apparatus main body 2 and is connected to the first return air chamber 104 and the second return air chamber 204.

  The exhaust system 402 includes a first exhaust path 406 that exhausts part of the air from the first zone K1, a second exhaust path 407 that exhausts part of the air from the second zone K2, and a third zone K3. And a third exhaust path 408 for exhausting a part of the air, and part of the flow paths of the first system 100 and the second system 200 are also used. The first exhaust passage 406 is branched from the middle portion of the second return air passage 203, the second exhaust passage 407 is branched from the middle portion of the first return air passage 103, and the third exhaust passage 408 is branched from the third return passage 408. It is branched from the middle part of the airway 301. The first exhaust path 406, the second exhaust path 407, and the third exhaust path 408 are joined at downstream portions thereof, and an exhaust fan 410 is disposed in the merged exhaust path 409. The air is exhausted.

  A description will be given of chambers and chambers that are partitioned in the apparatus main body 2. An outside air chamber 405 is disposed at the center of the apparatus main body 2, and the chambers 104 and 106 and the chambers 108 and 109 in the first system 100 are provided on one side (right side in the drawing) of the apparatus main body 2 in the longitudinal direction (lateral width direction) The chambers 204 and 206 and the chambers 208 and 209 in the second system 200 are arranged in the longitudinal direction of the main body 2 and on the other side (left side in the drawing) of the main body 2 in the longitudinal direction. They are arranged in a line. Thereby, chambers and rooms can be arranged symmetrically and in a balanced manner in the first system 100 and the second system 200, and the configuration and shape of the apparatus main body 2 can be simplified.

  The first return air chamber 104 is disposed adjacent to the outside air chamber 405 in the lateral width direction of the apparatus main body 2, and is connected to the outside air chamber 405 in communication. The second return air chamber 204 is also disposed adjacent to the outside air chamber 405 in the longitudinal direction of the apparatus main body 2 and is connected to the outside air chamber 405 in communication. Thus, the outside air supplied to the outside air chamber 405 can be supplied to the first return air chamber 104 and the second return air chamber 204. The second return air chamber 204 is formed in an L shape that wraps around the first return air chamber 104 on one side of the apparatus body 2 in the short direction of the outside air chamber 405, and the wrap around the second return air chamber 204. And the first return air chamber 104 are connected in communication with each other so that air can be supplied between the first return air chamber 104 and the second return air chamber 204.

  The first temperature control chamber 108 is disposed adjacent to the first return air chamber 104 in the longitudinal direction of the apparatus main body 2, and is connected to the first return air chamber 104. A first filter is connected to the communication connection portion. 105 is arranged. Thus, the air in the first return air chamber 104 can be supplied to the first temperature control unit 102 in a state of passing through the first filter 105. The first fan chamber 109 is disposed adjacent to the first temperature control chamber 108 in the longitudinal direction of the apparatus main body 2, and is connected to the first temperature control chamber 108. The conditioned air can be supplied to the first fan chamber 109. The first air supply chamber 106 is formed in an L shape adjacent to the first fan chamber 109 in the longitudinal direction and the short direction of the apparatus main body 2, and is connected to the first fan chamber 109. Is configured to be able to supply air to the first air supply chamber 106.

  The second temperature control chamber 208, the second fan chamber 209, and the second air supply chamber 206 are longer than the first temperature control chamber 108, the first fan chamber 109, and the first air supply chamber 106. In addition to being arranged symmetrically in the direction, the shape and configuration itself are the same as those of the first temperature control chamber 108, the first fan chamber 109, and the first air supply chamber 106. Incidentally, the second temperature control chamber 208 is provided with a humidification unit 210 in addition to the second temperature control unit 202.

  The third chamber 302 is disposed on the side opposite to the outside air chamber 405 in the short direction of the apparatus main body 2, and has a long shape extending between the first air supply chamber 106 and the second air supply chamber 206 in the longitudinal direction of the apparatus main body 2. And is connected in communication with the first air supply chamber 106 and the second air supply chamber 206. Thus, the air in the first supply chamber 106 can be supplied to the third chamber 302 and can be supplied to the second supply chamber 206 via the third chamber 302. Conversely, the air in the second air supply chamber 206 can also be supplied to the third chamber 302, and can be supplied to the first air supply chamber 106 via the third chamber 302.

  The air conditioner 1 includes a plurality of dampers D1 to D13. The first damper D1 to the seventh damper D7 are switched between an open state and a closed state, thereby switching between chambers defined in the apparatus main body 2 between a communication state and a non-communication state. The thirteenth damper D13 switches between the flow state and the non-flow state by switching between the open state and the closed state. In this way, by switching each of the plurality of dampers D <b> 1 to D <b> 13 between the open state and the closed state, the flow path of air or outside air is switched.

  The first damper D1 switches between the first return air chamber 104 and the second return air chamber 204 between a communication state and a non-communication state. The second damper D2 switches between the outside air chamber 405 and the first return air chamber 104 between a communication state and a non-communication state. The third damper D3 switches between the outside air chamber 405 and the second return air chamber 204 between a communication state and a non-communication state. The fourth damper D4 switches between the first fan 101 (first fan chamber 109) and the first air supply chamber 106 between a communication state and a non-communication state. The fifth damper D5 switches between the first supply chamber 106 and the third chamber 302 between a communication state and a non-communication state. The sixth damper D6 switches between the second fan 201 (second fan chamber 209) and the second air supply chamber 206 between a communication state and a non-communication state. The seventh damper D7 switches between the second supply chamber 206 and the third chamber 302 between a communication state and a non-communication state.

  The eighth damper D8 is disposed on the second zone K2 side of the first return air passage 103 with respect to the second exhaust passage 407 and switches the first return air passage 103 between a circulation state and a non-circulation state. The ninth damper D9 is disposed closer to the first zone K1 than the branch point of the first exhaust passage 406 in the second return air passage 203, and switches the second return air passage 203 between a circulation state and a non-circulation state. The tenth damper D10 is disposed closer to the third zone K3 than the branch point of the third exhaust path 408 in the third return air path 301, and switches the third return air path 301 between the circulation state and the non-circulation state. The eleventh, twelfth, and thirteenth dampers D11 switch each of the first, second, and third exhaust passages 406, 407, and 408 between a circulation state and a non-circulation state.

  The air conditioner 1 includes a plurality of air volume control devices F1 to F5 that can variably control the air volume of air and outside air in each flow path. The first air volume control device F1 is provided in the middle of the first air supply passage 107, and controls the air volume of air supplied to the first zone K1. The second air volume control device F2 is provided in the middle of the second air supply path 207, and controls the air volume of the air supplied to the second zone K2. The third air volume control device F3 is provided in the middle of the third air supply path 303, and controls the air volume of air supplied to the third zone K3. The fourth air volume control device F4 is provided in the middle of the outside air supply path 403 and controls the air volume of the outside air supplied to the apparatus main body 2. The fifth air volume control device F5 is provided in the middle part of the merged exhaust passage 409, and controls the air volume of the air exhausted to the outside. Incidentally, the fourth and fifth air volume controllers F4 and F5 may control the outside air volume to a certain amount.

  The air conditioner 1 includes a control unit 3 that controls its operation. The control unit 3 controls the operating states of the first fan 101, the second fan 201, the outside air supply fan 404, and the exhaust fan 410, and controls the first temperature control unit 102, the second temperature control unit 202, and the humidification unit 210. The operating state is controlled, switching control of the first to thirteenth dampers D1 to D13 is performed, and the operating state of the first to fifth air volume control devices F1 to F5 is controlled.

  The first temperature control unit 102 includes, for example, a cold water coil and can execute only a cooling operation that cools the air. The second temperature control unit 202 includes, for example, a hot water coil and a cold water coil, and supplies air. Both a heating operation for heating and a cooling operation for cooling air are configured to be executable. Thereby, the 1st temperature control part 102 should just be equipped with the structure only to carry out cooling operation, and can aim at simplification of a structure and reduction of cost. Incidentally, about the 2nd temperature control part 202, it is good also as a cold / hot water coil switched to the state which supplies cold water with respect to the same coil, and the state which supplies warm water, for example.

  The control unit 3 performs an operation according to the air conditioning request depending on what the air conditioning request is from each of the first to third zones K1 to K3.

[Each operation of air conditioner]
Hereinafter, description will be added about each operation of the air conditioner 1.
(First cooling / heating operation)
As shown in FIG. 1, when there is a cooling request from the first zone K1, and there is a heating request from the second and third zones K2, K3, the control unit 3 cools the first zone K1 and The first cooling / heating operation for heating the third zones K2, K3 is performed. In the first cooling / heating operation, the control unit 3 operates the first fan 101, the second fan 201, the outside air supply fan 404, and the exhaust fan 410, performs the cooling operation of the first temperature control unit 102, and performs the second operation. The temperature control unit 202 is heated and the humidification unit 210 is operated. For the damper, the control unit 3 opens the second damper D2, the fourth damper D4, the sixth damper D6, the seventh damper D7, the eighth damper D8, the ninth damper D9, the tenth damper D10, and the eleventh damper D11. Switch to the state and close the other dampers. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first to fifth air volume control devices F1 to F5.

  In the first cooling / heating operation, air from the second zone K2 is cooled by the first temperature control unit 102 by the first system 100 and supplied to the first zone K1, thereby cooling the first zone K1. By the second system 200, the air from the first zone K1 is heated by the second temperature control unit 202 and supplied to the second zone K2, thereby heating the second zone K2. The third system 300 uses part of the first system 100 to heat the air from the third zone K3 in the second temperature control unit 202, and the air heated in the second temperature control unit 202 The third zone K3 is heated by supplying a part to the third zone K3. The outside air supply system 401 supplies outside air to the upstream side of the first temperature control unit 102 in the first system 100 and mixes it with the air from the second and third zones K2 and K3. Supply to the first zone K1. A part of the air from the first zone K1 is exhausted to the outside by the exhaust system 402.

  The flow of the air and the outside air will be described. Air from the second zone K2 is supplied to the first return air chamber 104 through the first return air passage 103 by the ventilation action of the first fan 101, and the third zone. Air from K3 is supplied to the first return air chamber 104 through the third return air passage 301 and the first return air passage 103. On the other hand, the air from the first zone K <b> 1 is supplied to the second return air chamber 204 through the second return air passage 203 by the ventilation action of the second fan 201. The outside air is supplied to the outside air chamber 405 through the outside air supply path 403 by the ventilation action of the outside air supply fan 404. Here, since the second damper D2 is open and the third damper D3 is closed, the first return air chamber 104 and the outside air chamber 405 are in communication with each other and the second return air chamber 204 and the outside air chamber are in communication. 405 is in a non-communication state. Accordingly, the outside air supplied to the outside air chamber 405 is supplied to the first return air chamber 104 and mixed with the air in the first return air chamber 104.

  The air in the first return air chamber 104 is cooled in the first temperature control unit 102, and the air after the cooling passes through the first fan 101, the first air supply chamber 106, and the first air supply passage 107 in the first zone. Supplyed to K1, the first zone K1 is cooled. The air in the second return air chamber 204 is heated by the second temperature adjustment unit 202, and the heated air is humidified by the humidification unit 210, and the second fan 201, the second air supply chamber 206, the second air is supplied. The air is supplied to the second zone K2 through the air supply path 207, the second zone K2 is heated, and part of the air supplied to the second air supply chamber 206 is branched from the second air supply chamber 206, The gas is supplied to the third zone K3 through the three chambers 302 and the third air supply path 303, and the third zone K3 is also heated.

  In the exhaust system 402, since only the eleventh damper D11 is open among the eleventh, twelfth and thirteenth dampers D11, D12, and D13, the ventilation of the exhaust fan 410 causes the air from the first zone K1 to flow. A part is exhausted to the outside through the second return air passage 203, the first exhaust passage 406, and the merged exhaust passage 409.

  In the first cooling / heating operation, when the control unit 3 increases the cooling air volume to the first zone K1 as the cooling load increases, the heating air volume to the second and third zones K2, K3 decreases accordingly. Thus, the set air volume of the first to third air volume control devices can be varied. Further, the controller 3 increases the heating air volume to the second and third zones K2, K3 as the heating load increases, so that the cooling air volume to the first zone K1 is decreased accordingly. The set air volume of the third air volume control device can be varied. As described above, the control unit 3 can adjust not only the increase / decrease in the cooling airflow and the heating airflow but also the relative increase / decrease in the cooling airflow and the heating airflow according to the cooling load and the heating load. Further, when the heating load is small, the control unit 3 can perform the first cooling / heating operation while intermittently performing the heating operation in the second temperature control unit 202. For example, if the amount of heating air is reduced as the heating load is reduced, air that has been used for cooling and has risen in temperature flows into a zone where heating is required, so that heating can be performed efficiently. Further, if the heating load can be covered by the flow of air whose temperature has risen, the heating operation of the second temperature control unit 202 can be stopped, and the energy saving can be improved by reducing the energy consumption.

(Second cooling / heating operation)
As shown in FIG. 2, when there is a cooling request from the first zone K1 and the third zone K3 and there is a heating request from the second zone K2, the control unit 3 sets the first and third zones K1, K3. A second cooling / heating operation for cooling and heating the second zone K2 is performed. In the second cooling / heating operation, the control unit 3 operates the first fan 101, the second fan 201, the outside air supply fan 404, and the exhaust fan 410, performs the cooling operation of the first temperature control unit 102, and performs the second operation. The temperature control unit 202 is heated and the humidification unit 210 is operated. For the damper, the control unit 3 opens the second damper D2, the fourth damper D4, the fifth damper D5, the sixth damper D6, the eighth damper D8, the ninth damper D9, the tenth damper D10, and the eleventh damper D11. Switch to the state and close the other dampers. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first to fifth air volume control devices F1 to F5.

  In the second cooling / heating operation, the first system 100, the second system 200, the outside air supply system 401, and the exhaust system 402 are the same as the first cooling / heating operation (see FIG. 1), and the third zone It is different from the first cooling / heating operation in that K3 is not heated but cooled. Thus, the third system 300 cools the third zone K3 by supplying a part of the air cooled by the first temperature control unit 102 to the third zone K3.

  The flow of air and outside air is the first cooling / heating operation (see FIG. 1) for the supply of air (returned air) from the air-conditioning target space K to the apparatus body 2, the supply of outside air, and the exhaust from the air-conditioning target space K. Therefore, only the flow of air when the temperature-controlled air is supplied to the air-conditioning target space K will be described.

  The air cooled by the first temperature control unit 102 is supplied to the first zone K1 through the first fan 101, the first air supply chamber 106, and the first air supply passage 107, and the first zone K1 is cooled. Part of the air supplied to the first air supply chamber 106 is branched from the first air supply chamber 106 and supplied to the third zone K3 through the third chamber 302 and the third air supply path 303, and the third zone K3. Is also cooled. The air in the second return air chamber 204 is heated by the second temperature control unit 202, and the heated air passes through the second fan 201, the second air supply chamber 206, and the second air supply path 207 to the second zone. Supplyed to K2, the second zone K2 is heated.

  Also in the second cooling / heating operation, similarly to the first cooling / heating operation (see FIG. 1), the control unit 3 adjusts the increase / decrease in the cooling air volume and the heating air volume according to the cooling load and the heating load. In addition, the heating operation in the second temperature control unit 202 can be interrupted depending on the heating load condition or the like.

(First cooling / cooling operation)
As shown in FIG. 3, when there is a cooling request from all of the first to third zones K1 to K3 and the cooling load is large, the control unit 3 operates the first fan 101 and the second fan 201. The first cooling / cooling operation is performed to cool the first to third zones K1 to K3. In the first cooling / cooling operation, the control unit 3 operates the first fan 101, the second fan 201, the outside air supply fan 404, and the exhaust fan 410, and the first temperature control unit 102 and the second temperature control unit 202. Is cooled, and the humidifying unit 210 is deactivated. For the damper, the control unit 3 closes only the eleventh damper D11 and switches the other dampers to the open state. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first to fifth air volume control devices F1 to F5.

  In the first cooling / cooling operation, air from the second zone K2 is cooled by the first temperature control unit 102 by the first system 100 and supplied to the first zone K1, thereby cooling the first zone K1. The second system 200 cools the air from the first zone K1 by the second temperature control unit 202 and supplies the air to the second zone K2, thereby cooling the second zone K2. The third system 300 uses a part of the first system 100 to cool the air from the third zone K3 by the first temperature control unit 102, and the air cooled by the first temperature control unit 102 In addition to the part, the third zone K3 is cooled by supplying a part of the air cooled by the second temperature control unit 202 to the third zone K3. The outside air supply system 401 supplies outside air to both the upstream side of the first temperature control unit 102 in the first system 100 and the upstream side of the second temperature control unit 202 in the second system 200, and the first The outside air is mixed with the air from the zone K1, the outside air is mixed with the air from the second and third zones K2, K3, and the mixed air is mixed with the first, second, third zones K1, K2, K3. To each of them. A part of the air from each of the second and third zones K2, K3 is exhausted to the outside by the exhaust system 402.

  The flow of the air and the outside air will be described. Air from the second zone K2 is supplied to the first return air chamber 104 through the first return air passage 103 by the ventilation action of the first fan 101, and the third zone. Air from K3 is supplied to the first return air chamber 104 through the third return air passage 301 and the first return air passage 103. On the other hand, the air from the first zone K <b> 1 is supplied to the second return air chamber 204 through the second return air passage 203 by the ventilation action of the second fan 201. The outside air is supplied to the outside air chamber 405 through the outside air supply path 403 by the ventilation action of the outside air supply fan 404. Here, since the second damper D2 is open and the third damper D3 is open, the first return air chamber 104, the outside air chamber 405, and the second return air chamber 204 are in communication with each other. ing. As a result, the outside air supplied to the outside air chamber 405 is supplied to both the first return air chamber 104 and the second return air chamber 204, and is mixed with the air in the first return air chamber 104, and the second return air. Mixed with air in chamber 204.

  The air in the first return air chamber 104 is cooled in the first temperature control unit 102, and the air after the cooling passes through the first fan 101, the first air supply chamber 106, and the first air supply passage 107 in the first zone. Supplyed to K1, the first zone K1 is cooled. The air in the second return air chamber 204 is cooled by the second temperature control unit 202, and the cooled air passes through the second fan 201, the second air supply chamber 206, and the second air supply passage 207 to the second zone. Supplyed to K2, the second zone K2 is cooled. Part of the air supplied to the first air supply chamber 106 is branched from the first air supply chamber 106, supplied to the third chamber 302, and part of the air supplied to the second air supply chamber 206 is The air is branched from the second air supply chamber 206 and supplied to the third chamber 302. In the third chamber 302, the supplied air is mixed and supplied to the third zone K3 through the third air supply path 303, and the third zone K3 is cooled.

  In the exhaust system 402, of the eleventh, twelfth, and thirteenth dampers D11, D12, and D13, the twelfth and thirteenth dampers D12 and D13 are in an open state. Part of the air from the third zone K3 is exhausted to the outside through the first return air passage 103, the second exhaust air passage 407, and the merged exhaust air passage 409, and part of the air from the third zone K3 is exhausted to the third return air passage. 301, the third exhaust path 408, and the combined exhaust path 409 are exhausted to the outside.

(Second cooling / cooling operation)
As shown in FIG. 4, when there is a cooling request from all of the first to third zones K1 to K3 and the cooling load is small, the control unit 3 operates only the first fan 101 to perform the first to first zones. The second cooling / cooling operation is performed to cool the three zones K1 to K3. In the second cooling / cooling operation, the control unit 3 operates the first fan 101, the outside air supply fan 404, and the exhaust fan 410, and also cools the first temperature control unit 102 to perform the second operation in the second system 200. The fan 201, the 2nd temperature control part 202, and the humidification part 210 are stopped. For the damper, the control unit 3 performs the first damper D1, the second damper D2, the fourth damper D4, the fifth damper D5, the seventh damper D7, the eighth damper D8, the ninth damper D9, the tenth damper D10, The 12 damper D12 and the 13th damper D13 are switched to the open state, and the other dampers are closed. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first to fifth air volume control devices F1 to F5.

  The second cooling / cooling operation is different from the first cooling / cooling operation (see FIG. 3) in that the operation of the second fan 201 and the second temperature control unit 202 in the second system 200 is stopped. That is, in the second system 200, the operation of the second fan 201 and the second temperature control unit 202 is stopped, so that the air cooled by the first temperature control unit 102 is supplied to the second zone by the ventilation action of the first fan 101. By supplying to K2, the second zone K2 is cooled. Thereby, even if it does not operate the 2nd fan 201 and the 2nd temperature control part 202, the 1st-3rd zone K1-K3 can be cooled, energy consumption can be reduced and energy saving can be achieved.

  The flow of air and outside air will be described, but the exhaust from the air-conditioning target space K is the same as in the first cooling / cooling operation (see FIG. 3), and thus the description thereof is omitted. The air from the second zone K2 is supplied to the first return air chamber 104 through the first return air passage 103 by the ventilation action of the first fan 101, and the air from the third zone K3 is supplied to the third return air passage 301. The first return air passage 103 is supplied to the first return air chamber 104. Further, since the first damper D1 is in an open state, the first return air chamber 104 and the second return air chamber 204 are in communication with each other. The air from K1 is supplied to the first return air chamber 104 through the second return air passage 203 and the second return air chamber 204, and is mixed with the air in the first return air chamber 104. The outside air is supplied to the outside air chamber 405 through the outside air supply path 403 by the ventilation action of the outside air supply fan 404. Here, since the second damper D2 is open and the third damper D3 is closed, the first return air chamber 104 and the outside air chamber 405 are in communication with each other and the second return air chamber 204 and the outside air are in communication. The chamber 405 is not in communication. Accordingly, the outside air supplied to the outside air chamber 405 is supplied to the first return air chamber 104 and mixed with the air in the first return air chamber 104.

  The air in the first return air chamber 104 is cooled in the first temperature control unit 102, and the air after the cooling passes through the first fan 101, the first air supply chamber 106, and the first air supply passage 107 in the first zone. Supplyed to K1, the first zone K1 is cooled. Further, a part of the air supplied to the first air supply chamber 106 is branched from the first air supply chamber 106, supplied to the third zone K3 through the third chamber 302 and the third air supply path 303, and the third Zone K3 is cooled. Further, a part of the air supplied to the third chamber 302 is branched from the third chamber 302 and supplied to the second zone K2 through the second air supply chamber 206 and the second air supply path 207, and the second zone K2 is supplied. Is cooled.

(Partial cooling operation)
As shown in FIG. 5, when there is a cooling request from only the first and third zones K1 and K3, the control unit 3 performs a partial cooling operation for cooling only the first and third zones K1 and K3. In this partial cooling operation, the control unit 3 operates the first fan 101, the outside air supply fan 404, and the exhaust fan 410, and also cools the first temperature control unit 102, so that the second fan 201 in the second system 200, The second temperature control unit 202 and the humidification unit 210 are deactivated. For the damper, the control unit 3 performs the first damper D1, the second damper D2, the fourth damper D4, the fifth damper D5, the sixth damper D6, the seventh damper D7, the ninth damper D9, the tenth damper D10, The 12 damper D12 and the 13th damper D13 are switched to the open state, and the other dampers are closed. However, for the eighth damper D8, when the temperature of the second zone K2 becomes equal to or higher than the set temperature, the control unit 3 switches the eighth damper D8 to the open state in order to exhaust the warm air to the outside. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first, third, fourth, and fifth air volume control devices F1, F3, F4, and F5, and the second air volume. The air volume in the second air supply path 207 is adjusted to zero by the control device F2.

  This partial cooling operation is different from the second cooling / cooling operation (see FIG. 4) in that the air-conditioning target space K is partially cooled by using only the first and third zones K1, K3 as the zones to be cooled. . The controller 3 stops the supply of air to the second zone K2 by adjusting the air volume in the second air supply path 207 to zero by the second air volume controller F2. Therefore, air or outside air other than the point where there is no air supply to the second zone K2 by the second air supply path 207 and the point where there is no air circulation from the second zone K2 by the first return air path 103. The flow is the same as in the second cooling / cooling operation (see FIG. 4). However, as described above, when the temperature of the second zone K2 becomes equal to or higher than the set temperature, the control unit 3 switches the eighth damper D8 to an open state, thereby partially removing air (warm air) from the second zone K2. Then, the air is exhausted outside through the first return air passage 103, the second exhaust air passage 407, and the combined exhaust air passage 409.

  Incidentally, in this partial cooling operation, the supply of air to the second zone K2 is stopped by adjusting the air volume of the second air supply path 207 to zero by the second air volume control device F2, but for example, The controller 3 can also stop the supply of air to the second zone K2 by closing the seventh damper D7.

(Heating / heating operation)
As shown in FIG. 6, when there is a heating request from all of the first to third zones K1 to K3, the control unit 3 performs the heating / heating operation for heating the first to third zones K1 to K3. . In this heating / heating operation, the control unit 3 operates the second fan 201, the humidifying unit 210, the outside air supply fan 404 and the exhaust fan 410, and heats the second temperature control unit 202. The first fan 101 and the first temperature control unit 102 are deactivated. For the damper, the control unit 3 performs the first damper D1, the third damper D3, the fifth damper D5, the sixth damper D6, the seventh damper D7, the eighth damper D8, the ninth damper D9, the tenth damper D10, The 12 damper D12 and the 13th damper D13 are switched to the open state, and the other dampers are closed. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first to fifth air volume control devices F1 to F5.

  In the heating / heating operation, the first fan 101 and the first temperature control unit 102 in the first system 100 are deactivated, so that the air from the first to third zones K1 to K3 is discharged by the ventilation action of the second fan 201. Each of the first to third zones K1 to K3 is heated by being heated by the second temperature control unit 202 and supplied to each of the first to third zones K1 to K3. Thereby, even if it does not operate the 1st fan 101 and the 1st temperature control part 102, each of the 1st-3rd zones K1-K3 can be heated, energy consumption can be reduced and energy saving can be achieved.

  The air from the second and third zones K2 and K3 in the first system 100 is supplied to the second temperature control unit 202 and the air from the first zone K1 in the second system 200 by the ventilation action of the second fan 201. Is supplied to the second temperature control unit 202. In the 1st system | strain 100, the 1st zone K1 is heated by supplying a part of air heated in the 2nd temperature control part 202 to the 1st zone K1. Also in the second system 200, the second zone K2 is heated by supplying a part of the air heated by the second temperature control unit 202 to the second zone K2. Even in the third system 300, the third zone K2 is heated by supplying a part of the air heated by the second temperature control unit 202 to the third zone K3. The outside air supply system 401 supplies outside air to the upstream side of the second temperature control unit 202 in the second system 200, and mixes it with the air from the first to third zones K1 to K3. Supply to each of the first to third zones K1 to K3. A part of the air from each of the second and third zones K2, K3 is exhausted to the outside by the exhaust system 402.

  The flow of air and outside air will be described. Air from the first zone K1 is supplied to the second return air chamber 204 through the second return air passage 203 by the ventilation action of the second fan 201. Since the first damper D1 is in an open state and the first return air chamber 104 and the second return air chamber 204 are in communication with each other, the second fan 201 vents the second zone K2 from the second zone K2. Air is supplied to the second return air chamber 204 through the first return air passage 103 and the first return air chamber 104, mixed with the air in the second return air chamber 204, and the air from the third zone K3 is supplied to the second return air chamber 204. The third return air passage 301, the first return air passage 103, and the first return air chamber 104 are supplied to the second return air chamber 204 and mixed with the air in the second return air chamber 204. The outside air is supplied to the outside air chamber 405 through the outside air supply path 403 by the ventilation action of the outside air supply fan 404. Here, since the second damper D2 is closed and the third damper D3 is open, the first return air chamber 104 and the outside air chamber 405 are not in communication and the second return air chamber 204 Communication with the outside air chamber 405 is established. Thereby, the outside air supplied to the outside air chamber 405 is supplied to the second return air chamber 204 and mixed with the air in the second return air chamber 204.

  The air in the second return air chamber 204 is heated by the second temperature adjustment unit 202, and the heated air is humidified by the humidification unit 210, and the second fan 201, the second air supply chamber 206, the second air is supplied. The air is supplied to the second zone K2 through the air supply path 207, and the second zone K2 is heated. Further, a part of the air supplied to the second air supply chamber 206 is branched from the second air supply chamber 206 and supplied to the third zone K3 through the third chamber 302 and the third air supply path 303, and the third air is supplied to the third zone K3. Zone K3 is heated. Further, a part of the air supplied to the third chamber 302 is branched from the third chamber 302 and supplied to the first zone K1 through the first supply chamber 106 and the first supply passage 107, and the first zone K1. Is heated.

  In the exhaust system 402, of the eleventh, twelfth, and thirteenth dampers D11, D12, and D13, the twelfth and thirteenth dampers D12 and D13 are in an open state. Part of the air from the third zone K3 is exhausted to the outside through the first return air passage 103, the second exhaust air passage 407, and the merged exhaust air passage 409, and part of the air from the third zone K3 is exhausted to the third return air passage. 301, the third exhaust path 408, and the combined exhaust path 409 are exhausted to the outside.

(First partial heating operation)
As shown in FIG. 7, when there is a heating request from only the first and third zones K1 and K3, the control unit 3 performs the first partial heating operation in which only the first and third zones K1 and K3 are heated. Do. In the first partial heating operation, the control unit 3 operates the second fan 201, the humidifying unit 210, the outside air supply fan 404 and the exhaust fan 410, and heats the second temperature control unit 202, thereby operating the first system 100. The first fan 101 and the first temperature control unit 102 are stopped. For the damper, the control unit 3 includes the first damper D1, the third damper D3, the fifth damper D5, the sixth damper D6, the seventh damper D7, the ninth damper D9, the tenth damper D10, the twelfth damper D12 and the The 13 damper D13 is switched to the open state, and the other dampers are closed. However, for the eighth damper D8, when the temperature of the second zone K2 becomes equal to or lower than the set temperature, the control unit 3 switches the eighth damper D8 to the open state in order to exhaust the cold air to the outside. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the first, third, fourth, and fifth air volume control devices F1, F3, F4, and F5, and the second air volume. The air volume in the second air supply path 207 is adjusted to zero by the control device F2.

  The first partial heating operation is different from the heating / heating operation (see FIG. 6) in that the air-conditioning target space K is partially heated by using only the first and third zones K1, K3 as the heating zones. That is, the control unit 3 stops the supply of air to the second zone K2 by adjusting the air volume in the second air supply path 207 to zero by the second air volume control device F2. Therefore, air or outside air other than the point where there is no air supply to the second zone K2 by the second air supply path 207 and the point where there is no air circulation from the second zone K2 by the first return air path 103. The flow is similar to heating / heating operation. However, as described above, when the temperature of the second zone K2 becomes equal to or lower than the set temperature, the control unit 3 switches the eighth damper D8 to the open state, thereby partially removing air (cold air) from the second zone K2. Then, the air is exhausted outside through the first return air passage 103, the second exhaust air passage 407, and the combined exhaust air passage 409.

(Second partial heating operation)
As shown in FIG. 8, when there is a heating request from only the third zone K3, the control unit 3 performs the second partial heating operation for heating only the third zone K3. In the second partial heating operation, the control unit 3 operates the second fan 201, the humidifying unit 210, the outside air supply fan 404, and the exhaust fan 410, and also heats the second temperature control unit 202, thereby operating the first system 100. The first fan 101 and the first temperature control unit 102 are stopped. For the damper, the control unit 3 opens the first damper D1, the third damper D3, the fifth damper D5, the sixth damper D6, the seventh damper D7, the eighth damper D8, the twelfth damper D12 and the thirteenth damper D13. Switch to the state and close the other dampers. However, for the tenth damper D10, when the temperature of the third zone K3 becomes equal to or lower than the set temperature, the control unit 3 switches the tenth damper D10 to the open state in order to exhaust the cold air to the outside. For the air volume control device, the control unit 3 adjusts the air volume in each flow path to the set air volume in the second, fourth, and fifth air volume control devices F2, F4, and F5, and in the first air volume control device F1. The air volume in the first air supply path 107 is adjusted to zero, and the air volume in the third air supply path 303 is adjusted to zero by the third air volume control device F3.

  The second partial heating operation is different from the heating / heating operation (see FIG. 6) in that the air-conditioning target space K is partially heated by using only the second zone K2 as the heating zone. That is, the control unit 3 stops the supply of air to the first zone K1 by adjusting the air volume of the first air supply path 107 to zero by the first air volume control device F1, and the third air volume control device. The supply of air to the third zone K3 is stopped by adjusting the air volume of the third air supply path 303 to zero at F3. Therefore, there is no supply of air to the first zone K1 by the first supply passage 107, no supply of air to the third zone K3 by the third supply passage 303, and second supply by the second return air passage 203. The flow of air and outside air other than the point where there is no air flow from the first zone K1 and the point where there is no air flow from the third zone K3 by the third return air passage 301 is the heating / heating operation (FIG. 6). See). However, as described above, when the temperature of the third zone K3 becomes equal to or lower than the set temperature, the control unit 3 switches part of the air (cold air) from the third zone K3 by switching the tenth damper D10 to the open state. Then, the air is exhausted to the outside through the third return air passage 301, the third exhaust passage 408, and the merged exhaust passage 409.

  Incidentally, in this second partial heating operation, the air volume in the first air supply path 107 is adjusted to zero by the first air volume control device F1, and the air volume in the third air supply path 303 is made zero by the third air volume control device F3. The air supply to the first and third zones K1, K3 is stopped by adjusting to the first, third zones K1, K3. For example, the control unit 3 closes the seventh damper D7 so that the first, third, The supply of air to the three zones K1, K3 can also be stopped.

[Characteristic configuration of air conditioner]
As described above, as shown in FIG. 1, the air conditioner 1 switches between the first system 100 and the second system 200 according to which operation is performed, and switches the system that supplies the outside air with the outside air supply system 401. A supply state switching unit R is provided. The outside air supply state switching unit R includes a first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit 102 in the air flow direction in the first system 100, and an air flow direction in the second system 200. The second outside air supply state for supplying outside air to the upstream side of the second temperature control unit 202, and the air flow in the first system 100 upstream of the first temperature control unit 102 and the second system 200 in the air flow direction in the first system 100 It is configured to be switchable to a third outside air supply state in which outside air is supplied to both the upstream side of the second temperature control unit 202 in the flow direction. Incidentally, in FIGS. 2 to 8, the reference numerals of the outside air supply state switching unit R are omitted.

  As described above, in the apparatus main body 2, the outside air chamber 405 is partitioned and the first return air chamber 104 and the second return air chamber 204 are partitioned and formed adjacent to the outside air chamber 405. As a result, the outside air supply state switching unit R simply switches between the first return air chamber 104 and the outside air chamber 405 and between the second return air chamber 204 and the outside air chamber 405 between a communication state and a non-communication state. Only with this configuration, it is possible to switch between the first outside air supply state, the second outside air supply state, and the third outside air supply state.

  The outside air supply state switching unit R is composed of second and third dampers D2 and D3, and the control unit 3 opens the second damper D2 and closes the third damper D3, so that the outside air supply state is set. The switching unit R is switched to the first outside air supply state. The control unit 3 closes the second damper D2 and opens the third damper D3, thereby switching the outside air supply state switching unit R to the second outside air supply state, and the second and third dampers D2, D3. Are both opened, the outside air supply state switching unit R is switched to the third outside air supply state.

  In the air conditioner 1, in addition to the outside air supply state switching unit R, the first damper D1 (chamber switching) that can switch between the first return air chamber 104 and the second return air chamber 204 between a communication state and a non-communication state. Corresponding to the part). Thereby, the air of the first system 100 can be supplied to the upstream side of the second temperature control unit 202 in the air flow direction of the second system 200, and the air of the second system 200 can be supplied to the air flow of the first system 100. In the direction, the first temperature control unit 102 can be supplied upstream.

  In the first cooling / heating operation (see FIG. 1) and the second cooling / heating operation (see FIG. 2), the control unit 3 uses the first damper D1 to perform the first return air chamber 104 and the second return air chamber. 204 is in a non-communication state, and the outside air supply state switching unit R is switched to the first outside air supply state. Thus, both the first temperature control unit 102 and the second temperature control unit 202 are operated while air is separately circulated in the first system 100 and the second system 200, and the cooling of the zone in which there is a cooling request. While appropriately heating the zone where there is a heating request, the outside air can be supplied to the zone where there is a cooling request and ventilation can be performed appropriately. In addition, by cooling the outside air with the first temperature control unit 102, it is possible to efficiently perform cooling while using the cooling heat of the outside air, and it is possible to ventilate a zone where there is a cooling request while saving energy.

  In the first cooling / heating operation (see FIG. 1) and the second cooling / heating operation (see FIG. 2), the first return air passage 103 is heated in the second and third zones K2, K3. The used air whose temperature has been lowered is supplied to the first return air chamber 104. As a result, the air in the first return air chamber 104 is cooled by the first temperature control unit 102, so that the air whose temperature has been lowered can be cooled by the first temperature control unit 102. In addition, the second return air passage 203 supplies air, which has been used for cooling in the first zone K <b> 1 and whose temperature has been increased, to the second return air chamber 204. Accordingly, the air in the second return air chamber 204 is heated by the second temperature adjustment unit 202, so that the air whose temperature has been increased can be heated by the first temperature adjustment unit 102. As described above, the first temperature control unit 102 can cool the air whose temperature has been lowered, and the second temperature control unit 202 can heat the air whose temperature has been increased. Therefore, it is necessary to increase the capabilities of the temperature control units 102 and 202. Therefore, both cooling and heating can be efficiently performed while reducing energy consumption.

  In the second cooling / cooling operation (see FIG. 4) and the partial cooling operation (see FIG. 5), the control unit 3 uses the first damper D1 between the first return air chamber 104 and the second return air chamber 204. In the communication state, the outside air supply state switching unit R is switched to the first outside air supply state. Thus, all of the air from the air-conditioning target space K is supplied to the first temperature control unit 102, and outside air is also supplied to the first temperature control unit 102 to operate only the first temperature control unit 102, thereby cooling the air. It can properly cool and vent the required zones.

  In the heating / heating operation (see FIG. 6), the first partial heating operation (see FIG. 7), and the second partial heating operation (see FIG. 8), the control unit 3 uses the first damper D1 to perform the first return air chamber 104. And the second return air chamber 204 are in communication with each other, and the outside air supply state switching unit R is switched to the second outside air supply state. Thus, all of the air from the air-conditioning target space K is supplied to the second temperature control unit 202, and outside air is also supplied to the second temperature control unit 202, and only the second temperature control unit 202 is operated to perform heating. Proper heating and ventilation of the required zone.

  In the first cooling / cooling operation (see FIG. 3), the control unit 3 causes the first damper D1 to establish communication between the first return air chamber 104 and the second return air chamber 204, and the outside air supply state switching unit. R is switched to the third outside air supply state. Thereby, air from the air-conditioning target space K is supplied to both the first temperature control unit 102 and the second temperature control unit 202, and outside air is also supplied to both the first temperature control unit 102 and the second temperature control unit 202. Then, by operating both the first temperature control unit 102 and the second temperature control unit 202, it is possible to appropriately perform cooling and ventilation in a zone where there is a cooling request.

  As described above, between the first return air chamber 104 and the second return air chamber 204, a communication state and a non-communication state are determined depending on the air conditioning requirements from the first to third zones K1 to K3. And switching the outside air supply state switching unit R to the first outside air supply state, the second outside air supply state, and the third outside air supply state, while performing cooling and heating according to the air conditioning request, the zone to be air-conditioned The outside air can also be supplied to the air-conditioned zone.

[Another embodiment]
(1) In the above embodiment, one third system 300 is provided as an additional system, but a plurality of additional systems may be provided. In this case, a communication chamber communicating with the first air supply chamber 106 and the second air supply chamber 206 is provided in parallel with the third chamber 302, and the communication chamber and the first air supply chamber 106 are connected to each other. And a damper that switches between the communication chamber and the second air supply chamber 206 between a communication state and a non-communication state. As described above, by providing a plurality of additional systems, even in the air-conditioning target space K having a plurality of zones in addition to the first zone K1 and the second zone K2, each of the plurality of zones can be appropriately air-conditioned.

(2) In the above embodiment, the air conditioner 1 can be configured without the third system 300 as an additional system. In this case, the first air supply chamber 106 and the second air supply chamber 206 are directly communicated without providing the third chamber 302, and the first air supply chamber 106 and the second air supply chamber 206 are connected to the communication portion. Is provided with a damper that switches between a communication state and a non-communication state.

(3) In the above-described embodiment, the first temperature adjustment unit 102 is configured to execute only the cooling operation. However, the first temperature adjustment unit 102 is both a cooling operation and a heating operation, as in the second temperature adjustment unit 202. Can also be configured to be executable. In this case, the first fan 101 is operated, the first temperature control unit 102 is heated, the second fan 201 and the second temperature control unit 202 are stopped, and the heating / heating operation and the first partial heating are performed. The operation and the second partial heating operation can be performed.
Moreover, the 1st temperature control part 102 can be comprised so that both cooling operation and a heating operation can be performed, and the 2nd temperature control part 201 can also be comprised so that only a cooling operation can be performed.

(4) In the above embodiment, the arrangement configuration and shape of the plurality of chambers in the apparatus main body 2 can be changed as appropriate. The outside air supply state switching unit R adopts a configuration that switches between the first return air chamber 104 and the outside air chamber 405 and between the second return air chamber 204 and the outside air chamber 405 between a communication state and a non-communication state. However, for example, a configuration in which the outside air chamber 405 is not provided and the state is switched between a state in which the outside air is supplied to the first return air chamber 104 and a state in which the outside air is supplied to the second return air chamber 204 can be adopted. Various other configurations can be employed.

(5) In the above embodiment, for example, in the first cooling / heating operation, part of the air from the second and third zones K2, K3 can be exhausted to the outside by the exhaust system 402. In the exhaust system 402, it is possible to appropriately switch from which zone of the air-conditioning target space K a part of the air is exhausted to the outside.

(6) In the above embodiment, the first return air passage 103 supplies the air from the second zone K2 to the first return air chamber 104, and the second return air passage 203 supplies the air from the first zone K1. In contrast, the first return air passage 103 supplies the air from the first zone K1 to the first return air chamber 104, and the second return air passage 203 is supplied to the second return air chamber 204. Air from the second zone K 2 can also be supplied to the second return air chamber 204.

(7) In the above embodiment, the air-conditioning target space K having the interior zone and the perimeter zone is air-conditioned by the air-conditioning apparatus 1, but the air-conditioning target sky having a plurality of zones is air-conditioned by the air-conditioning apparatus 1. It can also be applied to various air-conditioning spaces.

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Apparatus main body 100 1st system | strain 101 1st fan 102 1st temperature control part 104 1st return air chamber 200 2nd system | strain 201 2nd fan 202 2nd temperature control part 204 2nd return air chamber D1 1st damper (Chamber switching part)
D2 2nd damper (outside air supply state switching part)
D3 3rd damper (outside air supply state switching part)
K air-conditioned space K1 first zone (interior zone)
K2 2nd zone (perimeter zone)
R Outside air supply state switching section

Claims (6)

A first system that regulates the temperature of air from the air-conditioning target space by the first fan by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space, and the air conditioning target by the ventilation action of the second fan An air conditioner comprising: a second system that regulates the temperature of air from the space at a second temperature control unit and supplies the air to the second zone of the air-conditioning target space;
The air-conditioning target space is a space having the first zone and the second zone that are not partitioned,
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An air conditioner provided with an outside air supply state switching unit that can be switched to a second outside air supply state that supplies outside air to the upstream side. The apparatus main body is connected in communication with the first temperature control section and is connected in communication with the first return air chamber for supplying air from one of the first zone and the second zone, and the second temperature control section. A second return air chamber for supplying air from the other of the first zone and the second zone and an outside air chamber for supplying outside air are partitioned,
The outside air supply state switching unit switches between the first return air chamber and the outside air chamber and between the second return air chamber and the outside air chamber between a communication state and a non-communication state, and The air conditioner according to claim 1, wherein the air conditioner is switched between an outside air supply state and the second outside air supply state. A first system that regulates the temperature of air from the air-conditioning target space by the first fan by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space, and the air conditioning target by the ventilation action of the second fan An air conditioner comprising: a second system that regulates the temperature of air from the space at a second temperature control unit and supplies the air to the second zone of the air-conditioning target space;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
The apparatus main body is connected in communication with the first temperature control section and is connected in communication with the first return air chamber for supplying air from one of the first zone and the second zone, and the second temperature control section. A second return air chamber for supplying air from the other of the first zone and the second zone and an outside air chamber for supplying outside air are partitioned,
The outside air supply state switching unit switches between the first return air chamber and the outside air chamber and between the second return air chamber and the outside air chamber between a communication state and a non-communication state, and Switch between the outside air supply state and the second outside air supply state,
The first return air chamber and air conditioning apparatus that are equipped with capable of switching chamber switching unit in communication with the non-communicated state between the second return air chamber. A first system that regulates the temperature of air from the air-conditioning target space by the first fan by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space, and the air conditioning target by the ventilation action of the second fan An air conditioner comprising: a second system that regulates the temperature of air from the space at a second temperature control unit and supplies the air to the second zone of the air-conditioning target space;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
Of the first temperature control unit and the second temperature control unit, one is configured to be able to execute both the heating operation and the cooling operation, and the other is configured to be able to execute only the cooling operation,
The outside air supply state switching unit supplies outside air to the temperature control unit to be cooled in a cooling / heating operation in which one of the first temperature control unit and the second temperature control unit is heated and the other is cooled. Therefore, switching to one side of the first outside air supply state and the second outside air supply state, and heating and operating one of the first temperature control unit and the second temperature control unit and stopping the other heating in operation, to supply outside air to the temperature control unit for heating operation, the switching Ru air conditioning apparatus on the other side of the first outdoor air supply state and the second outside air supply state.   The outside air supply state switching unit is switchable to a third outside air supply state for supplying outside air to both the first system and the second system in addition to the first outside air supply state and the second outside air supply state. And in the cooling / cooling operation in which one or both of the first temperature control unit and the second temperature control unit are cooled, the first outside air supply state is used to supply outside air to the temperature control unit to be cooled. The air conditioner according to claim 4, wherein the air conditioner is switched to one of the second outside air supply state and the third outside air supply state. A first system that regulates the temperature of air from the air-conditioning target space by the first fan by the ventilation action of the first fan and supplies the air to the first zone of the air-conditioning target space, and the air conditioning target by the ventilation action of the second fan An air conditioner comprising: a second system that regulates the temperature of air from the space at a second temperature control unit and supplies the air to the second zone of the air-conditioning target space;
The first system is supplied with air from one of the first zone and the second zone, and the second system is supplied with air from the other of the first zone and the second zone,
A first outside air supply state in which outside air is supplied to the upstream side of the first temperature control unit in the air flow direction in the first system, and more than the second temperature control unit in the air flow direction in the second system. An outside air supply state switching unit capable of switching to a second outside air supply state for supplying outside air to the upstream side is provided;
The apparatus main body is connected in communication with the first temperature control section and is connected in communication with the first return air chamber for supplying air from one of the first zone and the second zone, and the second temperature control section. And a second return air chamber for supplying air from the other of the first zone and the second zone, the first zone as an interior zone, the second zone as a perimeter zone, return air into the chamber to supply air from the second zone, air-conditioning apparatus that to supply air from said first zone to said second return air chamber.

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