JP2011075116A - Outside air treating air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a workload for maintenance of a plurality of blowers in an outside air treating air conditioner equipped with the plurality of blowers. <P>SOLUTION: The outside air treating air conditioner 10 includes, in a casing 11: a total heat exchanging element 31 exchanging heat between outside air and inside air; an air supply fan 40A introducing outside air indoors through the total heat exchanging element 31; and an exhaust fan 40B exhausting inside air outdoors through the total heat exchanging element 31. The outside air treating air conditioner 10 further includes fan motors 50A, 50B arranged facing a side face panel 11c constituting one side of the casing 11. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outside air processing air conditioner that regulates outside air and supplies it indoors.

  In general, a so-called outside air conditioner (outside air processing air conditioner) is known that discharges indoor air to the outdoors and introduces the outside air indoors with the indoor air as a heat source (for example, Patent Document 1). reference). In general, an outside air processing air conditioner is provided with two ventilation paths, an introduction path that sucks outside air and supplies it indoors, and a discharge path that sucks outside air and discharges it outside. Two or more blowers are provided.

JP 2003-185291 A

Since the plurality of blowers provided in the conventional outside air processing air conditioner blows air in the reverse direction, the installation position and the installation direction are often reversed. As described above, in the configuration in which the installation positions of the plurality of fans are separated from each other and are installed in the opposite directions, each fan has to be accessed from another route, and the work load during maintenance is large. In addition, due to restrictions on the installation location of the outside air processing air conditioner, there has been a problem that the work burden tends to be particularly large when maintenance of each blower is performed from one inspection passage.
Accordingly, an object of the present invention is to reduce the work burden related to maintenance of a plurality of blowers in an outside air processing air conditioner including a plurality of blowers.

  To achieve the above object, the present invention includes a total heat exchange element for exchanging heat between outside air and inside air, an introduction fan for introducing outside air indoors through the total heat exchange element, and outside air inside the casing. In the outside air processing air conditioner provided with a discharge fan that discharges through the total heat exchange element, a drive motor of each fan is disposed to face a side plate that constitutes one side of the casing.

  In this configuration, the side plate facing the drive motor of each blower is provided with an opening that allows the total heat exchange element to be pulled out in the width direction of the casing, and an opening for maintenance of the blower. Also good. Further, the outside air processing air conditioner may be installed in the ceiling space so that an inspection port of the ceiling plate constituting the ceiling space is located in the vicinity of the maintenance opening of each blower.

  In the above configuration, the introduction blower and the discharge blower may be configured as a double-suction sirocco fan having intake ports on both side surfaces of the casing, and the drive motor may be attached to one intake port. Further, the housing includes an introduction path for introducing outside air indoors from the outdoor side suction port, and a discharge path for discharging indoor air from the indoor side suction port to the outside, and the introduction blower is provided in the opening of the casing. The opening on the opposite side to the drive motor is arranged to be located on the outdoor side suction port side, and the exhaust fan is disposed on the indoor side suction port side on the opposite side of the casing from the drive motor. You may arrange | position so that it may be located in. Furthermore, an outdoor air outlet for exhausting air from the housing to the outside and an indoor air outlet for supplying air indoors from the housing are provided at positions facing each other on both end faces of the housing, The introduction blower and the discharge blower may be arranged to face the outdoor side air outlet and the indoor side air outlet, respectively.

  According to the present invention, in the outside air processing air conditioner, the introduction fan that introduces the outside air indoors through the total heat exchange element and the drive motor of the discharge fan that discharges the inside air outdoors via the total heat exchange element are provided on one side of the casing. Therefore, any of the drive motors can be easily accessed through the side plate. For this reason, the work burden concerning the maintenance of the plurality of blowers can be greatly reduced.

It is a perspective view which shows the internal structure of the external air processing air conditioner concerning this embodiment. It is a top view of an outside air processing air conditioner. It is a sectional side view of an outside air processing air conditioner. It is a perspective view of an air blower. It is a disassembled perspective view which shows the state which pulled out each part containing a total heat exchange element from an external air process air conditioner.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an internal structure of an outside air processing air conditioner according to the present embodiment, FIG. 2 is a plan view of the outside air processing air conditioner, and FIG. 3 is a side of the outside air processing air conditioner. It is sectional drawing. In FIG. 1 and FIG. 2, the top panel of the housing is omitted.

As shown in FIG. 1, the outside air processing air conditioner 10 includes a substantially rectangular parallelepiped casing 11. Of the pair of side panels 11 a and 11 b facing the longitudinal direction of the casing 11, the indoor side panel As shown in FIG. 2, the indoor side inlet 12 and the indoor side outlet 13 are formed in 11a, and the outdoor side inlet 14 and the outdoor side outlet 15 are formed in the outdoor side panel 11b. ing. A duct (not shown) is connected to each of the suction ports and the air outlets, and communicates with an indoor or outdoor space via these ducts. Moreover, the outside air processing air conditioner 10 includes suspension brackets 16 fixed to the four corners of the housing 11, and these suspension brackets 16 are attached to suspension bolts (not shown) suspended from a housing of a building such as a building. The casing 11 is fixed and is configured to be suspended in a ceiling space between the casing and the ceiling plate.
Moreover, as shown in FIG. 1, the two inspection ports 20 and 20 for maintaining and inspecting the outside air processing air conditioner 10 are formed in a ceiling board, and these inspection ports 20 and 20 are formed in this embodiment. Of the pair of side panels 11c and 11d extending in the longitudinal direction of the casing 11 of the outside air processing air conditioner 10, the side panels 11c are arranged in parallel along one side panel 11c.

  On this side panel (side plate) 11c, an electrical equipment box 21 in which electrical equipment for controlling the operation of the outside air processing air conditioner 10 is accommodated is disposed. The electrical box 21 is integrally attached to the maintenance panel 23 that constitutes the side panel 11 c and is attached to and detached from the housing 11 together with the maintenance panel 23.

The outside air processing air conditioner 10 includes a total heat exchange unit 30 for adjusting the outside air temperature and an air conditioning unit 60 connected to the total heat exchange unit 30 in a housing 11. Specifically, the inside of the housing 11 is divided into an outdoor side and an indoor side by the partition wall 17 provided substantially parallel to the side panels 11a and 11b described above, and the total heat exchange unit 30 is provided in the outdoor side space. Contained. The indoor space is further divided by a partition wall 18 provided between the indoor air inlet 12 and the indoor air outlet 13, and an air conditioning unit 60 is accommodated in the space communicating with the indoor air outlet 13. ing. The air conditioning unit 60 is connected to the total heat exchange unit 30 through an air supply opening 17 a provided in the partition wall 17.
In the space that communicates with the indoor suction port 12, as shown in FIG. 2, the partition wall 17 is provided with an exhaust opening 17 b and a bypass opening 17 c that are respectively connected to a discharge path 34 and a bypass path 39 described later. A damper unit 80 is disposed for blocking one of the bypass opening 17c and the bypass opening 17c, and switching the inside air RA sucked from the indoor suction port 12 to the discharge path 34 or the bypass path 39. The damper unit 80 includes a damper plate 81 that is bent into a substantially L shape, opens one of the exhaust opening 17 b and the bypass opening 17 c and closes the other, and a damper motor 82 that rotates the damper plate 81. .

As shown in FIG. 2, the total heat exchange unit 30 includes a total heat exchange element 31 that performs sensible heat exchange between the inside air RA and the outside air OA, and an exhaust fan provided on the outdoor side of the total heat exchange element 31. (Exhaust fan) 40B, air supply fan (introduction fan) 40A provided on the indoor side of the total heat exchange element 31 and the casing 11, the total heat exchange element 31 is placed outside the room air RA. And an air passage forming body 36 that forms an introduction passage 35 for introducing the exhaust passage 34 and the outside air OA into the room through the total heat exchange element 31. The air path forming body 36 is formed by combining a plurality of foamed resin members, and is arranged in the housing 11 so as to be symmetrical with respect to the total heat exchange element 31 in a plan view.
Further, in this configuration, the total heat exchange unit 30 is formed with a bypass path 39 for discharging the inside air RA to the outside by bypassing the total heat exchange element 31 in cooperation with the casing 11 and the air path forming body 36. Has been.

  As shown in FIG. 3, the total heat exchange element 31 is formed in a substantially regular quadrangular prism shape, and the four side surfaces 31 a to 31 d serving as air inlets or outlets are the top panel 11 e and bottom panel of the housing 11. It is arranged to extend in the width direction of the housing 11 in a posture inclined with respect to 11f. Specifically, rails having a U-shaped cross section extending in the width direction of the casing 11 are respectively provided on the top panel 11e, the bottom panel 11f of the casing 11, and the surface of the air passage forming body 36 facing the total heat exchange element 31. Members 37A to 37D are provided, and the side portions of the total heat exchange element 31 are supported by the rail members 37A to 37D. According to this, the inside of the housing | casing 11 is divided into four space 38a, 38b, 38c, 38d connected to the four side surfaces 31a-31d of the total heat exchange element 31, respectively.

Of the two spaces 38a and 38b formed by the air path formation body 36, the bottom panel 11f of the housing 11 and the total heat exchange element 31, a space 38a which is continuous with the side surface 31a located below the outdoor side of the total heat exchange element 31. Is communicated with the outdoor side suction port 14 via the air passage forming body 36. For this reason, this space 38a becomes an outside air suction path, and the side surface 31a of the total heat exchange element 31 becomes a suction port.
Further, a space 38b communicating with the side surface 31b located on the indoor side lower side of the total heat exchange element 31 communicates with the indoor suction port 12 via the exhaust opening 17b and the damper unit 80 (FIG. 1). For this reason, this space 38b becomes an inside air suction path, and the side surface 31b of the total heat exchange element 31 becomes a suction port.

On the other hand, the upper side surfaces 31 c and 31 d of the total heat exchange element 31 are exposed to the outside of the air path formation body 36, and are formed by the air path formation body 36, the upper surface panel 11 e of the housing 11, and the total heat exchange element 31. Of the two spaces 38c and 38d, the space 38c connected to the side surface 31c located above the outdoor side of the total heat exchange element 31 communicates with the outdoor side outlet 15 via the exhaust fan 40B. For this reason, this space 38c becomes an exhaust passage, and the side surface 31c of the total heat exchange element 31 becomes an outlet.
Further, a space 38 d connected to the side surface 31 d located on the indoor side upper side of the total heat exchange element 31 communicates with the indoor air outlet 13 via the air supply fan 40 </ b> A and the air conditioning unit 60. For this reason, this space 38d becomes an air supply passage, and the side surface 31d of the total heat exchange element 31 becomes an air outlet.

  The total heat exchanging element 31 is a sheet of paper folded on a meandering folded paper, and the folded paper is placed on the folded paper with the folding direction changed from the folded paper. Flat paper is laminated in order. For this reason, in the four side surfaces 31a to 31d of the total heat exchange element 31, the opposite side surfaces communicate with each other. That is, the side surface 31a and the side surface 31c and the side surface 31b and the side surface 31d communicate with each other. Therefore, in this embodiment, between the outdoor side inlet 14 and the indoor side outlet 13, the outside air suction path 38 a and the air supply path 38 d communicate with each other via the total heat exchange element 31 to form the introduction path 35. On the other hand, the indoor air suction passage 38b and the exhaust passage 38c communicate with each other through the total heat exchange element 31 between the indoor side inlet 12 and the outdoor side outlet 15 to form a discharge passage 34.

As shown in FIG. 1, the air path forming body 36 is formed on the indoor side of the total heat exchange element 31, and the indoor side is recessed downward from the total heat exchange element 31 toward the air supply opening 17 a of the partition wall 17. A recess 36A and an outdoor recess 36B formed on the outdoor side of the total heat exchange element 31 and recessed downward from the total heat exchange element 31 toward the outdoor outlet 15 of the side panel 11b. An air supply fan 40A is disposed at 36A, and an exhaust fan 40B is disposed at the outdoor recess 36B.
The supply fan 40A and the exhaust fan 40B are both sirocco fans, and the exhaust fan 40B is attached to a position corresponding to the outdoor-side air outlet 15 of the side panel 11b of the housing 11 in the outdoor-side recess 36B. The air supply fan 40A communicates with the air supply opening 17a formed in the partition wall 17 at the indoor recess 36A, and is attached to a position corresponding to the indoor air outlet 13 of the side panel 11a.

FIG. 4 is a perspective view showing the structure of the air supply fan 40A, and also shows the fan motor 50A attached to the air supply fan 40A. 4A shows one side surface in an orientation corresponding to FIG. 1, and FIG. 4B shows the other side surface. Since the supply fan 40A and the exhaust fan 40B are configured identically, FIG. 4 shows the supply fan 40A as an example, and reference numerals of corresponding members in the exhaust fan 40B are shown in parentheses in the drawing.
The side surface shown in FIG. 4A is the surface on the side panel 11c side in FIG. The supply fan 40A is a sirocco fan configured by accommodating a cylindrical rotary blade 42A having a plurality of fins in a substantially cylindrical casing 41A, and a fan motor (drive motor) that rotationally drives the rotary blade 42A. 50A is attached. The rotary blade 42A of the present embodiment is a double suction type that sucks air from both end surfaces in the rotation axis direction and blows air in the side surface direction. In the casing 41A, an air inlet 44A is opened on one side surface and an air inlet 45A is opened on the other side surface corresponding to the suction surface of the rotary blade 42A, and the indoor side recesses are formed from these air inlets 44A and 45A. 36A of air is inhaled. Further, the casing 41A is provided with an air outlet 43A, and air is blown from the air outlet 43A toward the air conditioning unit 60 described later.

A circular main plate (not shown) is provided at the center of the rotating blade 42A in the axial direction, and an output shaft (not shown) of the fan motor 50A is fixed to a boss (not shown) provided on the main plate. Therefore, the fan motor 50A can be attached to either the intake port 44A side or the intake port 45A side. In this embodiment, the fan motor 50A is connected to the intake port 44A that faces the side panel 11c when installed in the housing 11. A fan motor 50A is arranged.
On the other hand, the exhaust fan 40B is similarly configured as a double-suction sirocco fan in which the rotating blade 42B is accommodated in the casing 41B, and the casing 41B is provided with intake ports 44B and 45B corresponding to both axial ends of the rotating blade 42B. Then, the air in the outdoor side recess 36B is sucked from the air inlets 44B and 45B, and blown from the air outlet 43B through the outdoor side air outlet 15. In the exhaust fan 40B, a fan motor (drive motor) 50B that rotationally drives the rotary blade 42B is provided in the intake port 44B that faces the side panel 11c in the installed state in the housing 11. That is, in this configuration, as shown in FIG. 1, the fan motors 50B and 50A are directed toward one side panel 11c of the casing 11 located on the two inspection ports 20 and 20 provided on the ceiling plate. Is provided.

Here, the air supply fan 40A and the exhaust fan 40B can have exactly the same configuration including the mounting positions of the fan motors 50A and 50B, and as shown in FIG. Just change the direction. The air supply fan 40A and the exhaust fan 40B in FIG. 1 have a relationship in which the installation directions are rotated 180 degrees along the rotation direction of the rotary blades 42A and 42B.
In addition, as shown in FIG. 4, although the blower outlets 43A and 43B are not located in the center of the height direction, the positions of the blower outlets 43A and 43B and the positions of the indoor air outlet 13 and the outdoor air outlet 15 Even if they do not overlap completely, it is possible to discharge inside air and introduce outside air efficiently. Further, the height of the indoor side air outlet 13 communicating with the air outlet 43A of the air supply fan 40A is biased upward according to the air outlet 43A, and the height of the outdoor side air outlet 15 is lowered according to the discharge path 34b. If biased to the side, the ventilation resistance is further reduced, and the inside air can be discharged and the outside air introduced more efficiently.

As shown in FIG. 2, the air supply fan 40 </ b> A has an air intake 45 </ b> A on the side where the fan motor 50 </ b> A is not attached, of the two air intakes 44 </ b> A and 45 </ b> A provided in the casing 41 </ b> A. It arrange | positions so that it may be located in the outdoor side inlet 14 side which is upstream. Specifically, the introduction path 35 formed inside the casing 11 by the air path forming body 36 passes through the total heat exchange element 31 and reaches the indoor-side recess 36A. Here, the outside air sucked from the outdoor side suction port 14 can pass through the entire surface of the total heat exchange element 31, but the air volume on the outdoor side suction port 14 side tends to increase. For this reason, by positioning the air inlet 45A not blocked by the fan motor 50A in the width direction of the housing 11 on the outdoor side air inlet 14 side, that is, on the side where the total air exchange amount of the total heat exchange element 31 is large, A large amount of air that has passed through the heat exchange element 31 is sucked in with a small amount of resistance, and air can be efficiently blown.
Similarly, as shown in FIG. 2, the exhaust fan 40 </ b> B is arranged such that the intake port 45 </ b> B on the side where the fan motor 50 </ b> B is not attached is positioned on the indoor intake port 12 side upstream of the discharge path 34. ing. The outside air sucked from the indoor suction port 12 can pass through the entire surface of the total heat exchange element 31, but the air volume on the indoor suction port 12 side tends to increase, so it is not blocked by the fan motor 50A. Since the side air inlet 45B is positioned on the indoor side air inlet 12 side in the width direction of the housing 11, a large amount of air is sucked from the side where the air volume passing through the total heat exchange element 31 is large. A large amount of air is sucked in by resistance, and air can be efficiently blown.

  Further, an outdoor side air outlet 15 and an indoor side air outlet 13 are respectively formed on the side panel 11b and the side panel 11a constituting both end surfaces of the housing 11, and the air supply fans 40A and 40B are respectively It arrange | positions facing the inner side blower outlet 13 and the outdoor side blower outlet 15. FIG. In particular, the air outlet 43A of the air supply fan 40A faces the indoor side air outlet 13, and the air outlet 43B of the exhaust fan 40B faces the outdoor side air outlet 15. For this reason, since the blowing air of the air supply fans 40A and 40B is blown to the indoor side air outlet 13 and the outdoor side air outlet 15 with a small resistance, the ventilation resistance is suppressed and the outside air is efficiently introduced and the inside air is discharged. Can do.

Next, the air conditioning unit 60 will be described.
The air conditioning unit 60 cools or heats the outside air supplied indoors through the introduction path 35. As shown in FIG. 3, the indoor heat exchanger 61, the humidifier 62, the indoor heat exchanger 61, A drain pan 63 that receives drain water flowing down from the humidifier 62. The indoor heat exchanger 61 is connected to an outdoor unit (not shown) of an air conditioner including a compressor and a heat source side heat exchanger via an expansion valve 64 (FIG. 2), and evaporates during cooling operation. It functions as a cooler to cool the outside air and supplies it indoors. During heating operation, it functions as a condenser to warm the outside air and supply it indoors.
The air conditioning unit 60 has a liquid refrigerant pipe connection port 65 connected to one end of the indoor heat exchanger 61 via an expansion valve 64, and a gas refrigerant pipe connection port 66 connected to the other end of the indoor heat exchanger 61. The liquid refrigerant pipe connection port 65 and the gas refrigerant pipe connection port 66 pass through the side panel 11c of the housing 11 located on the inspection ports 20 and 20 side, as shown in FIG.

The humidifier 62 is provided on the downstream side of the flow of the outside air of the indoor heat exchanger 61. The humidifier 62 absorbs water by a humidifying element (not shown) having high water retention and allows the outside air to pass through the humidifying element. Humidify the outside air.
The humidifier 62 is provided with a humidifier control box 68 having a water supply connection port 67. In the humidifier control box 68, a depressurization for reducing the pressure of water supplied from the water supply connection port 67 to a predetermined pressure. A valve, an electromagnetic valve that opens and closes to supply the decompressed water to the humidifying element, and a control board that controls the operation of the electromagnetic valve are provided. In the present embodiment, the humidifier control box 68 is provided on the side panel 11c of the housing 11 located on the inspection ports 20 and 20 side as shown in FIG.
The side panel 11c is provided with a drain pipe connection port 69 for discharging drain water received by the drain pan 63 to the outside below the side panel 11c. The drain pipe connection port 69 is connected to a drain pipe when drain water is naturally drained from the drain pan 63. In addition, the code | symbol 70 is also a drain pipe connection port, and this drain pipe connection port 70 is used when draining from the drain pan 63 using a drain pump. When this drain pipe connection port 70 is used, the drain pipe connection port 69 for natural drainage is sealed.

FIG. 5 is an exploded perspective view showing a state in which each part including the total heat exchange element 31 is pulled out in the outside air processing air conditioner 10. In addition, illustration of the element which the humidifier 62 has in this FIG. 5 is abbreviate | omitted.
In this embodiment, the side panel 11c of the housing 11 is provided with a detachable maintenance panel 22 at a position corresponding to the total heat exchange element 31, as shown in FIG. In addition, on the side panel 11c, as described above, the maintenance panel 23 attached integrally with the electrical equipment box 21 is arranged side by side on the maintenance panel 22, and the maintenance panel 24 is arranged on the opposite side of the maintenance panel 23. Further, the side panel 11c has a maintenance panel 25 located in the vicinity of the liquid refrigerant pipe connection port 65, the gas refrigerant pipe connection port 66, and the drain pipe connection port 69, and a maintenance unit integrally attached to the humidifier control box 68. A panel 26 is arranged.
These maintenance panels 22 to 26 are all detachable from the side panel 11c, and FIG. 5 shows a state in which the maintenance panels 22 to 26 are removed.

  As described above, the total heat exchange element 31 has the side portions of the total heat exchange element 31 supported by the four rail members 37 </ b> A to 37 </ b> D arranged in the housing 11. For this reason, as shown in FIG. 5, by removing the maintenance panel 22, the total heat exchange element 31 can be easily inserted and removed from the inspection port 20 in the width direction of the housing 11 (X direction in FIG. 5). Maintenance work such as replacement of the total heat exchange element 31 can be easily performed. Further, in the present embodiment, the total heat exchange element 31 is accommodated in two parts, so that the total heat exchange element 31 can be easily inserted into and removed from the housing 11 even when working from the inspection port 20. can do.

  Further, as described above, the maintenance panel 23 integrated with the electrical equipment box 21 faces the fan motor 50A of the air supply fan 40A. When the maintenance panel 23 is removed together with the electrical equipment box 21, the maintenance panel 23 opens as shown in FIG. 19c is opened, and the fan motor 50A is exposed from the opening 19c. The maintenance panel 24 is located at a position facing the fan motor 50B of the exhaust fan 40B. When the maintenance panel 24 is removed, the opening 19a is opened, and the fan motor 50B is exposed from the opening 19a. Therefore, maintenance can be performed on the fan motors 50A and 50B from the openings 19c and 19a, and the fan motors 50A and 50B can be taken out from the openings 19c and 19a as needed. In this way, maintenance work can be performed on both the fan motors 50A and 50B from the side panel 11c side.

Further, when the maintenance panel 25 provided on the side panel 11c is removed together with the maintenance panels 22, 23, 24, an opening 19d is opened. From this opening 19d, the liquid refrigerant pipe connection port 65, the gas refrigerant pipe connection port 66, and the drain pipe are opened. The piping inside the casing 11 connected to the connection port 69 is exposed. For this reason, maintenance of each connection port 65, 66, 69 and piping connected to each connection port can be performed from the side panel 11c side.
The humidifier 62 is integrally attached to the inside of the maintenance panel 26 detachably provided on the side panel 11c, and the humidifier control box 68 is attached to the outside of the maintenance panel 26. The humidifier control box 68 and the humidifier 62 can be pulled out of the casing 11 together with the maintenance panel 26, and maintenance such as cleaning and replacement of elements (not shown) can be performed from the side panel 11c side.

Thus, in the outside air processing air conditioner 10 of the present embodiment, the maintenance panels 23 and 24 are detachably disposed on the side panel 11c at positions facing the fan motors 50A and 50B. And since the inspection ports 20 and 20 are located in the vicinity of the maintenance panels 23 and 24, the ceiling panel space where the outside air processing air conditioner 10 is installed is accessed through the inspection port 20, and the maintenance panels 23 and 24 are installed. By removing, it is possible to quickly realize a state in which the fan motors 50A and 50B can be maintained. Thereby, the maintainability of the two fan motors 50A and 50B can be greatly improved.
Further, the maintenance panel 26 integrally including the humidifier 62 and the humidifier control box 68, the maintenance panel 25 for maintenance of the connection port of the refrigerant pipe and the drain pipe, the connection port of the water supply pipe of the humidifier, and the electrical equipment Since the box 21 is provided on the side panel 11c, these parts can be easily accessed from the inspection port 20, and maintenance of the parts can be easily performed without entering the ceiling space.

In the above-described outside air processing air conditioner 10, the damper plate 81 of the damper unit 80 is in a state in which the exhaust opening 17b is opened and the bypass opening 17c is closed, and the exhaust fan 40B is driven, so that the inside air RA is taken into the indoor suction port. After being sucked into the housing 11 from 12, it is discharged to the outside as exhaust EA from the outdoor outlet 15 through the discharge path 34. On the other hand, by driving the air supply fan 40A, the outside air OA is sucked into the housing 11 from the outdoor side suction port 14, then reaches the total heat exchange element 31 through the introduction path 35, and this total heat exchange element. At 31, heat is exchanged with the inside air RA. The heat exchanged outside air OA reaches the air conditioning unit 60, is cooled or heated by the indoor heat exchanger 61 of the air conditioning unit 60, and is further humidified by the humidifier 62 as necessary. It is supplied indoors as air supply SA from the air outlet 13.
Further, when the room temperature is lower than the outside air temperature during the heating operation, or when the room temperature is higher than the outside air temperature during the cooling operation, the damper plate 81 of the damper unit 80 is closed and the bypass opening 17c is closed by closing the exhaust opening 17b. By making it open, the inside air RA is sucked into the housing 11 from the indoor suction port 12, and then passes through the bypass path 39 that does not pass through the total heat exchange element 31 as the exhaust EA from the outdoor air outlet 15. It is discharged outdoors. For this reason, the air conditioning load of the air conditioning unit 60 can be reduced, and resource saving and energy saving can be achieved.

  As described above, according to the present embodiment, the total heat exchange element 31 that exchanges heat between the outside air and the inside air, the supply fan 40A that introduces the outside air indoors via the total heat exchange element 31, and the inside air are contained in the housing 11. In the outdoor air processing air conditioner 10 provided with the exhaust fan 40B that exhausts through the total heat exchange element 31 outdoors, the fan motors 50A and 50B are disposed to face the side panel 11c that constitutes one side of the housing 11, Any one of the fan motors 50A and 50B can be easily accessed via the side panel 11c. For this reason, the work burden required for the maintenance of the fan motors 50A and 50B can be greatly reduced.

Further, the side panel 11c facing the fan motors 50A and 50B is provided with an opening 19b that allows the total heat exchange element 31 to be pulled out in the width direction of the casing 11, and openings 19a and 19c for maintenance of each blower. The total heat exchange element 31 can be maintained from the side panel 11c side, the fan motors 50A and 50B can be easily accessed, and maintenance of each part can be performed from one side of the housing 11. Can do.
Further, as shown in each drawing, the outside air processing air conditioner 10 has a ceiling plate inspection port 20, 20 that forms the ceiling space in the ceiling space, and the maintenance openings 19 a, 19 c of the blowers are provided. Since they are installed in the vicinity of each other, the fan motors 50A, 50B can be easily accessed from the inspection port 20. It is also possible to access the fan motors 50A, 50B directly from the inspection port 20 without entering the ceiling space.

  The supply fan 40A and the exhaust fan 40B are configured as a double-suction sirocco fan having intake ports 44A and 45A and intake ports 44B and 45B on both side surfaces of the casings 41A and 41B, and drives the sirocco fans. Since the motors 50A and 50B are attached to the intake port on one side of the intake ports 44A, 44B, 45A and 45B, the fan can be blown even if the fan motors 50A and 50B are attached to either side. For this reason, the side surface to which the fan motors 50A and 50B are attached can be selected in accordance with the installation direction of the air supply fan 40A and the exhaust fan 40B. Accordingly, it is possible to easily realize a configuration in which the fan motors 50A and 50B are both disposed to face the side panel 11c.

Furthermore, in the housing | casing 11, it is provided with the introduction path | route 35 which introduces outside air into the indoor from the outdoor side inlet port 14, the discharge path 34 which discharges | emits indoor air outside from the indoor side inlet port 12, and the air supply fan 40A is provided. The air intake 45A on the side opposite to the fan motor 50A is arranged so as to be located on the outdoor side suction port 14, and the exhaust fan 40B and the air intake 45B on the side opposite to the fan motor 50B are located on the indoor side intake port side. Therefore, the air inlets 45A and 45B that are not blocked by the fan motor 50A are positioned on the side where the air volume tends to increase in the total heat exchange element 31, and the air that has passed through the total heat exchange element 31 has less resistance. Inhales a lot and can efficiently blow air.
Furthermore, the side panel 11b, 11a which comprises the both end surfaces of the housing | casing 11 into the outdoor side blower outlet 15 which exhausts from the housing | casing 11 to the outdoors, and the indoor side blower outlet 13 for supplying air from the housing | casing 11 indoors. The air supply fan 40A and the exhaust fan 40B are disposed so as to face the outdoor side air outlet 15 and the indoor side air outlet 13, respectively, so that the air blown from the air supply fans 40A and 40B is reduced. The air can be blown to the indoor side air outlet 13 and the outdoor side air outlet 15 by resistance, the ventilation resistance can be suppressed, and the outside air can be efficiently introduced and the inside air discharged.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this. For example, in the present embodiment, the total heat exchange element 31 is divided into two and accommodated in the housing 11, but is not limited thereto. Further, when the width (capacity) of the total heat exchange element 31 may be smaller than the width of the housing 11, a spacer formed in the shape of a square column with foamed resin is disposed on the side of the total heat exchange element 31. May be. Further, in the above-described embodiment, the air supply fan 40A and the exhaust fan 40B have been described as examples of both suction type sirocco fans. However, the present invention is not limited to this, and the single suction type sirocco fan. May be used. In this case, the air supply fan 40A and the exhaust fan 40B may be arranged so that the fan motors 50A and 50B disposed on the side surface opposite to the air inlet face the side panel 11c. Can be changed.

10 Outside air processing air conditioner 11 Housing 11c Side panel (side plate)
DESCRIPTION OF SYMBOLS 12 Indoor side inlet 13 Indoor side outlet 14 Outdoor side inlet 15 Outdoor side outlet 19a, 19b, 19c, 19d Opening 20 Inspection port 21 Electrical box 22, 23, 24, 25, 26 Maintenance panel 30 Total heat exchange unit 31 Total heat exchange element 34 Discharge path 35 Introduction path 36 Air path formation body 40A Air supply fan (introduction fan)
40B Exhaust fan (exhaust fan)
41A, 41B Casing 42A, 42B Rotary blades 43A, 43B Air outlet 44A, 44B Air inlet 45A, 45B Air inlet 50A, 50B Fan motor (drive motor)
60 Air conditioning unit 61 Indoor heat exchanger (heat exchanger)
EA exhaust OA outside air RA inside air SA air supply

Claims (6)

A total heat exchange element that exchanges heat between the outside air and the inside air in the housing, an introduction fan that introduces the outside air indoors through the total heat exchange element, and an exhaust fan that discharges the outside air outdoors via the total heat exchange element; In an outside air processing air conditioner equipped with
The drive motor of each of the fans is disposed opposite to the side plate that constitutes one side of the housing.
An outside air processing air conditioner characterized by that.   The side plate facing the drive motor of each blower is provided with an opening that allows the total heat exchange element to be pulled out in the width direction of the housing, and an opening for maintenance of each blower. The outside air processing air conditioner according to claim 1.   The outside air processing air conditioner is installed in a ceiling space so that an inspection port of a ceiling plate constituting the ceiling space is positioned in the vicinity of a maintenance opening of each of the fans. 2. An outside air processing air conditioner according to 2.   4. The introduction blower and the discharge blower are configured as a double-suction sirocco fan having intake ports on both side surfaces of the casing, and the drive motor is attached to one intake port. The outdoor air processing air conditioner described in any one of the above.   The housing includes an introduction path for introducing outside air indoors from the outdoor side suction port, and a discharge path for discharging outside air from the indoor side suction port to the outdoors, and the drive of the introduction blower out of the opening of the casing Arranged so that the opening on the opposite side of the motor is located on the outdoor side suction port side, the exhaust blower, the opening on the opposite side to the drive motor among the openings of the casing is located on the indoor side suction port side It arrange | positions so that it may carry out. The outside air processing air conditioner of Claim 4 characterized by the above-mentioned.   An outdoor air outlet for exhausting air from the housing to the outside and an indoor air outlet for supplying air from the housing indoors are provided at positions facing each other on both end surfaces of the housing, and the introduction fan and The outside air processing air conditioner according to any one of claims 1 to 5, wherein the discharge blower is disposed to face the outdoor side air outlet and the indoor side air outlet, respectively.