JP2007271139A - Air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioner for reducing dew condensation on partition walls and heat loss while saving a space. <P>SOLUTION: A casing 1 consists of a plurality of heat insulating panels joined together. The heat insulating panels are arranged as partition walls for partitioning air ducts in the casing 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner, and particularly relates to a casing structure technique.

  Conventionally, in this type of air conditioner, the casing is provided with a return air port and an air supply port communicating with the air conditioning target system, and a supply air passage is formed between the return air port and the air supply port of the casing. A filter, a heat exchanger, an air supply fan device, etc. are arranged in the air supply passage.

  In addition, as disclosed in, for example, Patent Document 1, the air conditioner is configured so that the housing can be divided by a plurality of panels, and the panels and the panel and the base are connected by a connecting tool such as a bolt, A gasket is interposed between the panels. Moreover, the front panel is attached so that opening and closing is possible by the hinge, and the sealing material is provided corresponding to the panel to open and close.

In Patent Document 2, a plurality of partition plates are arranged in the internal space of the casing to form an air passage for heat exchange. Moreover, there exists patent document 3 as another prior art document.
JP-A-10-110964 JP 09-303810 A Japanese Patent Laid-Open No. 62-228824

  In the above configuration, devices such as filters, heat exchangers, and air supply fan devices arranged in the air supply ventilation path must pass all the airflow flowing from the upstream side, A partition wall (iron plate) separating the upstream side and the downstream side was provided.

  However, the temperature difference between the upstream side and the downstream side of the heat exchanger in the air supply passage of the casing is large, dew condensation occurs on the partition wall, causing corrosion and the like, and heat loss is large. For this reason, measures such as bonding and fixing a heat insulating material to the partition walls are necessary, and it is difficult to attach the heat insulating material to the partition walls in a narrow casing. In addition, since the partition wall has a structure in which a partition for a heat exchanger is provided in each heat exchanger, for example, and a partition wall for a filter is provided in a filter, there is a structural factor that increases installation space. However, space saving is an important issue when installing in buildings.

  The present invention solves the above-described problems, and an object of the present invention is to provide an air conditioner that can reduce condensation and heat loss in the partition wall and can save space.

  In order to solve the above-described problems, the air conditioner of the present invention is characterized in that a casing is formed by joining a plurality of heat insulating panels, and the heat insulating panels are arranged as partition walls for partitioning a ventilation path inside the casing.

  Further, the partition wall has a filter unit mounted on one surface on the upstream side and a heat exchanger mounted on the other surface on the downstream side, and has an opening for communicating the filter unit and the heat exchanger. And

In addition, the heat insulating panel is characterized in that a heat insulating material is filled in a frame formed of a heat insulating material forming an outer peripheral edge.
Further, the opening edge at the lower end of the opening of the partition wall is located higher than the bottom surface of the heat exchanger by a predetermined distance, and a drain hole is provided in the bottom surface of the heat exchanger.

  As described above, according to the present invention, by using the same heat insulating panel as the outer wall as the partition wall for partitioning the air passage of the air conditioner, it is possible to improve the heat insulating property of the partition wall to realize dew condensation prevention and heat loss reduction, It is effective for the partition placed around the heat exchanger with a large difference. In addition, the heat insulation panel itself constitutes the structural member of the casing, and the filter unit and heat exchanger support structure is simple by attaching the filter unit and the heat exchanger to the front and back surfaces of the partition wall made of this heat insulation panel. Thus, space saving can be achieved.

  In addition, since the frame of the heat insulation panel is made of a heat insulating material having a lower thermal conductivity than the plate material that forms the front and back surfaces of the heat insulation panel such as resin, there is no heat transfer at the junction of the heat insulation panel, and the heat insulation of the partition wall Can be further enhanced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Overall structure)
As shown in FIGS. 1 to 2, a casing 1 of an air conditioner has a plurality of wall plate panels 3 standing on a gantry (drain panel) 2, and a ceiling portion at the upper end of the wall plate panel 3. A plurality of top panel panels 4 and 5 are arranged, a plurality of partition panels 6a, 6b and 6c forming partition walls are erected inside the casing 1, and each panel is joined to each other and assembled. It is a frameless structure that does not require a separate frame structural material.

The wall panel 3, the top panels 4, 5, the partition panels 6 a, 6 b, 6 c and the door panel 10 basically have the same heat insulation structure, which will be described in detail later.
The partition panels 6a, 6b, and 6c are arranged at a position separating the return air chamber 7 and the outside air chamber 8, and a position separating the outside air chamber 8 and the air supply chamber 9, and one sheet for the fan partition in the air supply chamber 9. Is arranged.

Moreover, the door panel 10 is arrange | positioned for every area | region divided by the partition panels 6a, 6b, 6c in the front side of the casing 1, ie, the side which performs a maintenance.
The casing 1 forms a return air port 11 on the top panel 4 corresponding to the return air chamber 7, and forms an outside air port 12 and an air supply port 13 on the top panel 5 corresponding to the outside air chamber 8 and the air supply chamber 9. An exhaust port 14 is formed in the wall plate panel 3 corresponding to the side surface of the casing 1.

  The return air port 11 and the air supply port 13 communicate with the air conditioning target system, the outside air port 12 and the exhaust port 14 communicate with the atmosphere, and the inside of the casing 1 supplies the return air port 11 and the outside air port 12 to the air. An air supply passage 15 communicating with the mouth 13 is formed.

  A return air / exhaust fan device 16 comprising a single suction centrifugal plug fan is installed inside the return air chamber 7, and a damper device 17 is mounted on a partition panel 6 a that separates the return air chamber 7 and the outside air chamber 8. The return air chamber 7 communicates with the outside air chamber 8 through the damper device 17.

  The partition panel 6b that separates the outside air chamber 8 and the air supply chamber 9 is provided with a filter unit 20 including a pre-filter 18 and a medium performance filter 19 on the outside air chamber 8 side, and a cooling coil 21 on the air supply chamber 9 side. A heat exchanger 23 comprising a heating coil 22 and a humidifier (vaporization type) 24 are mounted, and the outside air chamber 8 communicates with the air supply chamber 9 through the filter unit 20, the heat exchanger 23 and the humidifier 24. . The humidifier 24 may be a steam type.

An air supply fan device 25 composed of a single suction centrifugal plug fan is installed inside the air supply chamber 9, and an opening 26 is formed in the partition panel 6c for the fan partition wall.
(Operation of air conditioner)
The return air RA returning to the return air chamber 7 from the return air port 11 by the return air / exhaust fan device 16 flows out from the exhaust port 14 to the outside of the casing 1 as exhaust EA, and to the outside air chamber 8 through the damper device 17. Divide into inflows. This ratio is performed by adjusting the opening degree of the damper device 17, and the return air RA flowing into the outside air chamber 8 increases as the opening degree of the damper device 17 is increased.

  The return air RA flowing into the outside air chamber 8 flows into the air supply chamber 9 through the filter unit 20 and the heat exchanger 23 together with the outside air OA flowing into the outside air chamber 8 from the outside air port 12. At this time, the filter unit 20 removes dust and the like contained in the return air RA and the outside air OA by the pre-filter 18 and the medium performance filter 19, and the heat exchanger 23 uses the cooling coil 21 and the heating coil 22 to return the return air RA and The outside air OA is adjusted to air having a predetermined humidity and temperature, and humidified by the humidifier 24.

Air passing through the heat exchanger 23 and flowing into the air supply chamber 9 passes through the opening 26 of the partition panel 6c, and is sent out from the air supply port 14 to the air conditioning target system as the air supply SA by the air supply fan device 25.
(Fan device mounting structure)
As shown in FIG. 3, the return air / exhaust fan device 16 and the supply air fan device 25 have the same configuration including a fan 31 and a drive motor 32, and the return air / exhaust fan device 16 also serves as a partition wall. The difference is that the air supply fan device 25 is installed on the upper surface of the base plate 33 while the air supply fan device 25 is installed on the lower surface of the base plate 33.

  The following description is common to the return air / exhaust fan device 16 and the air supply fan device 25. The base plate 33 has a vent (not shown), the opening periphery of the fan 31 is welded and fixed to the opening periphery of the ventilation port, and the drive motor 32 is mounted on the motor stud 35 connected and fixed to the base plate 33 by the connecting rod 34. is doing.

  A rubber seal material 36 that forms a hollow sealing means is attached to the outer peripheral edge of the base plate 33. The rubber seal material 36 hermetically seals between the outer peripheral edge of the base plate 33 and the panel wall surface, and is in sliding contact with the wall surface. Anti-vibration function. The base plate 33 is supported by a mounting base 39 via a coil spring 37 and a connecting bolt 38 that constitute a buffer means so as to be movable up and down.

  With the above-described configuration, the mounting base 39 supports the base plate 33 via the buffering means, and airtightness and vibration proofing properties are secured at the outer peripheral edge of the base plate 33 from the rubber seal material 36. It functions as a partition that partitions the space.

  By providing a rubber seal material 36 that slides against the panel wall surface, which is the wall surface of the air supply ventilation path, on the outer peripheral edge of the base plate 33 that itself forms a partition wall that partitions the air supply ventilation path, and exhibits a vibration-proof function and sealing performance. Thus, the work of fixing the sealing means to the wall surface as in the prior art becomes unnecessary, the fan device can be easily mounted, and the mounting structure of the fan device can be simplified.

  Moreover, the rubber seal material 36 receives the horizontal component of vibration transmitted from the fan device to the base plate 33 and the vertical component is received by the coil spring 37 and the connecting bolt 38, thereby improving the vibration isolation.

Further, the support height position of the base plate 33 can be changed by changing the lengths of the coil spring 37 and the connecting bolt 38, or by elastically deforming the coil spring 37 by tightening the connecting bolt 38. The height can be changed according to the airflow, and the vertical position of the fan device can be adjusted accordingly. At this time, the rubber seal material 36 slides on the wall surface of the panel to exhibit a vibration-proof function and a sealing property, and the work of fixing to the wall surface is not necessary, so that changing the support height position of the base plate 33 may be hindered. Absent.
(Support structure for filter unit and heat exchanger)
As shown in FIG. 4, a closing plate 42 is mounted on the side of the outside air chamber 8 of the partition panel 6b so as to surround the opening 41, and the closing plate 42 includes a lower guide rail plate 43 and an upper guide rail plate. 44 and a side plate 45. The lower guide rail plate 43 includes a rail portion 43a and a leg portion 43b. The lower guide rail plate 43 engages with a slit 46 formed in the partition panel 6b with an engagement piece portion 43c formed on the front end edge of the rail portion 43a. The edge 43d is fixed to the gantry 2 with bolts 43e.

The side plate 45 has engagement pieces 45a and 45b at the lower end edge and the upper end edge, and is engaged with a slit 43f formed in the lower guide rail plate 43 at the engagement piece portion 45a at the lower end edge.
The upper guide rail plate 44 is engaged with an engagement piece 45b at the upper end edge of the side plate 45 by a slit 44a formed in the side portion, and the front end edge portion 44b is fixed to the intermediate partition panel 6b with bolts 44c.

  The closing plate 42 is open on the side facing the door panel 10, and the pre-filter 18 and the medium-performance filter 19 inserted from the opening are formed with a lower guide rail plate 43 and an upper guide rail plate 44 that are inclined downward toward the side plate 45. Hold in between.

  As shown in FIG. 5A, the heat exchanger 23 disposed in the opening 41 is fixed to the side of the air supply chamber 9 of the partition panel 6b with fixing bolts 51, and the cooling coil 21 and the heating coil 22 are fixed. Are connected by a connecting bolt 52. As shown in FIG. 5B, the lower end edge 41a of the opening 41 is positioned higher than the bottom plate 21a of the cooling coil 21 by a predetermined distance L, and a drain hole 21b is provided in the bottom plate 21a.

  With the above configuration, the return air chamber is partitioned between the return air chamber 7 and the outside air chamber 8 having a large temperature difference, and between the outside air chamber 8 and the air supply chamber 9 by the partition panels 6a and 6b having a heat insulating structure. 7, the heat insulation between the outside air chamber 8 and the air supply chamber 9 can be enhanced, and the prevention of condensation on the panel surface and the reduction of heat loss can be realized.

  The partition panel 6b having a heat insulating structure itself forms a structural member of the casing 1, and the filter unit 20 and the heat exchanger are mounted by mounting the filter unit 20 and the heat exchanger 23 on the front and back surfaces of the partition panel 6b. The support structure of 23 becomes simple, and space saving can be achieved.

  Further, since the closing plate 42 and the heat exchanger 23 on which the filter unit is mounted are fixed to the partition panel 6 by fixing means (bolts, slits) that do not penetrate the partition panel 6b, there is no heat transfer through the fixing means. The heat insulation between the outside air chamber 8 and the air supply chamber 9 can be further enhanced.

  Further, since the side plate 45 connects the lower guide rail plate 43, the upper guide rail plate 44, and the side plate 45 by the engagement of the slit and the engagement piece portion, the side plate 45 can be easily disassembled during assembly and maintenance.

Condensed water that condenses on the surface of the heat dissipating fins of the cooling coil 21 during the operation of the air conditioner moves to the humidifier 24 side by air flow, and the condensed water that condenses on the surface of the heat dissipating fins of the cooling coil 21 immediately after the operation is stopped. The water flows down from the drain hole 21b of the bottom plate 21a to the gantry (drain panel) 2. At this time, the lower end edge 41a of the opening 41 of the partition panel 6b is positioned higher than the bottom plate 21a of the cooling coil 21 by a predetermined distance L, so that the partition panel 6b becomes a weir and the condensed water leaks into the outside air chamber 8. Can be prevented.
(Drain pan structure)
As shown in FIG. 6, the gantry (drain panel) 2 is formed by joining a frame body 62 around a drain pan 61, and the drain pan 61 includes a drain port 63 on the front surface of the casing 1, that is, one side of the maintenance side. ing. The drain pan 61 has a structure in which the entire bottom surface is inclined toward the drain port 63, the drain port 63 is opened facing the airflow direction, and the opening is opposed to the heat exchanger 23 in the axial direction. .

Moreover, since the heat insulating material layer (illustration omitted) which affixed the heat insulating material on the back surface was formed, the heat loss of an air conditioner is reduced.
With the configuration described above, the drain pan 61 can be easily formed by tilting the entire bottom surface of the drain pan 61 toward the drain port 63, and the bottom surface of the drain pan 61 can be formed into a flat surface. For this reason, when the airflow flows without separating from the flat bottom surface of the drain pan 61, the dew condensation water can be pushed out toward the drainage port 63 by the airflow, and the opening of the drainage port 63 is axially oriented in the heat exchanger 23. The dew condensation water flows out smoothly from the drain outlet 63 by facing the, so that the dew condensation water remaining on the drain pan 61 can be reduced, and corrosion of the drain pan 61 can be suppressed.

In addition, since the drain outlet 63 is provided at the corner on the front side of the air conditioner (the corner on the front side of the side), there is no need to install drainage piping on the front of the air conditioner, and maintenance is performed safely. In addition, it is easy to check and clean around the drain.
(Other drain pan structure)
A bottom plate may be provided on the bottom surface of the gantry 2, and the inside of the gantry may be filled with a foam heat insulating material.
(Panel structure)
As shown in FIG. 7, the casing 1 of the air conditioner forms a wall body by joining a plurality of wall plate panels 3, and a plurality of partition panels 6 a, 6 b, 6 c are erected inside the casing 1. The frameless structure is formed by joining the panels to each other, and the door panel 10 is provided so as to be freely opened and closed.

  Here, the basic structure of each panel shown in FIGS. 8 to 9 will be described. Each panel has a pair of outer plates 71, 71 forming the front and back surfaces, a foamed urethane 72 of a heat insulating material disposed between the outer plates 71, 71, and a frame body 73 disposed so as to surround the outer periphery, The frame 73 is made of an extruded material of resin such as ABS resin.

  The frame 73 includes an insertion groove 73a into which the peripheral edge 71a of the outer plate 71 is bent, and a coupling recess 73b for connecting means. As shown in FIG. A portion to be formed has a hollow corner portion 73c that forms a column portion.

  As shown in FIG. 8B, the panels are coupled to each other via a connection bar 74 of a coupling means attached to the coupling recess 73b, and the projection 73d formed on the inner surface of the coupling recess 73b and the outside of the connection bar 74 The protrusion 74a formed on the surface engages to prevent it from coming off.

  In the present embodiment, the connection bar 74 engages with the coupling recess 73b in the frame 73, but the frame 73 of the other panel directly engages in the coupling recess 73b of the frame 73 of one panel. Configuration is also possible. In addition, a configuration in which a coupling recess is provided in the connection bar 74 and the frame 73 is engaged with the coupling recess of the connection bar 74 is also possible.

  The connection bar 74 has a cross-sectional shape orthogonal to the axial center, and connects the pair of parallel joining piece portions 74b facing the inner surface of the coupling recess 73b and the joining piece portions 74b on both sides, and each joining piece portion 74b. And an elastic connecting portion 74c that presses the inner surface of the coupling recess 73b, and projections 74a are formed at both ends of the joining piece portion 74b.

  The elastic connecting portion 74c is formed by connecting a pair of elastic piece portions 74d in a V shape on the base end side, and connecting the distal end side of the elastic piece portion 74d to one end of the joining piece portion 74b. The other end is a free end.

  With this configuration, even when the panels to be coupled are linear or do not face each other at 90 °, the connection bar 74 is elastically deformed by the elastic coupling portion 74c, so that the relative relationship between both the joining piece portions 74b is achieved. The position and orientation are flexibly changed, and each joining piece 74b is accurately opposed to the inner side surface of the coupling recess 73b to realize a reliable connection.

  As shown in FIG. 8 (c), the partition panels 6 a, 6 b, 6 c have gaskets 75 attached to the side edges to be joined to the wall panel 3, and the gaskets 75 are fitted into the coupling recesses 73 b of the frame 73. It consists of a fitting part 75a to be mated and a seal part 75b in airtight contact with the wall surface of the wall panel 3.

  As shown in FIG. 7, the inner partition panels 6a, 6b, 6c are connected to the wall plate panel 3 by L-shaped metal fittings 76 on the side on the back end side, and door receiving metal fittings 77 and A door support metal 78 is provided, and the door support metal 77 and the door support metal 78 are fixed to the top panel 4, 5 and the gantry 2.

  As shown in FIG. 9 (b), the corner member 79 that forms the struts forming the corners of the casing 1 can be configured separately from the panel. In this case, the corner member 79 includes a hollow corner portion 79a and a pair of parallel joining piece portions 79b, and the joining piece portion 79b engages with the inner surface of the coupling recess 73b to be connected.

  In the present embodiment, the joint piece 79b of the corner member 79 engages with the coupling recess 73b of the frame 73, but the corner member 79 can be directly engaged with the coupling recess 73b of the frame 73. It is. Further, it is also possible to provide a configuration in which a coupling concave portion is provided in the corner member 79 and a joining piece portion is provided in the frame body 73 and engaged. Further, a configuration in which the frame 73 is directly engaged with the coupling recess of the corner member 79 is also possible. Furthermore, it is also possible to provide a configuration in which the corner member 79 is provided with a coupling recess, and the connection bar 74 is engaged with the coupling recess of the corner member 79 and the coupling recess 73 b of the frame 73. It is also possible to provide a configuration in which a connection recess is provided in the connection bar 74 and the corner member 79 and the frame body 73 are directly engaged with the connection recess of the connection bar 74.

Moreover, it is also possible to comprise a heat insulating panel formed at a right angle or curved instead of the corner member.
As in the above configuration, since the heat insulation panel filled with heat insulation material between the outer plate and the frame and having rigidity is used as all the partition panels, the rigidity of the entire air conditioner is also increased. .

Further, since the frame body 62 of the heat insulating panel is made of resin having a lower thermal conductivity than the outer plate 71 and the outer plates of the adjacent heat insulating panels are not in contact with each other, a partition is formed between the air conditioner and the outside. The heat insulation effect between the areas divided by the panels 6a, 6b, 6c is further enhanced.
(Door panel structure)
As shown in FIGS. 10 to 11, the door panel 10 has a support shaft 81 at the side end portions of the upper end edge and the lower end edge, and the support shaft 81 is connected to the top panel 4, 5, and By being held rotatably on the gantry 2, the casing 1 is mounted so as to be rotatable around the axis of the support shaft 81, and a rubber packing 82 is mounted around the entire periphery of the rear surface.

  As shown in FIG. 9A, the rubber packing 82 includes a fitting portion 82a that fits into the coupling recess 73b of the frame 73 of the door panel 10 and a hollow seal portion 82b. As shown in FIG. 5, the seal portion 82b comes into airtight contact with the frame 73 of the wall plate panel 3, the partition panels 6a, 6b, 6c, or the door bracket 77.

  As shown in FIGS. 12 and 13, the door panel 10 has a plurality of locking hooks 83 attached to the back surface of the side portion where the support shaft 81 is provided, and a locking plate 84 that engages with the locking hooks 83. It is attached to the partition panel 6b or the wall panel 3.

  The opening stopper plate 84 is formed with a slit 84a into which the hook portion 83a of the opening stopper hook 83 is inserted, and the hook portion 83a of the opening stopper hook 83 is inclining edge that is in sliding contact with the opening edge 84b of the slit 84a of the opening stopper plate 84. Part (guide edge part) 83b and a hook-like edge part 83c that engages with the opening edge 84b of the slit 84a in the front and back direction of the door panel 10 to prevent the opening.

  With this configuration, as shown in FIGS. 12A to 12C, when the door panel 10 is rotated from the open position to the closed position, the seal portion 82 b of the rubber packing 82 comes into contact with the frame body 73 and elastically deforms. The space between the frames 73 between both panels is hermetically sealed. At this time, as the door panel 10 is closed, the hook 83a of the locking hook 83 is inserted into the slit 84a of the locking plate 84, and the inclined edge 83b of the hook 83a is in sliding contact with the opening edge 84b of the slit 84a. The ridge-like edge 83c is guided to the opening edge 84b of the slit 84a.

  When the door panel 10 reaches the fully closed position, the hook-shaped edge 83c engages with the opening edge 84b of the slit 84a. For this reason, even if the door panel 10 receives the pressure inside the casing 1 and curves outward, the frame 73 on the side edge of the door panel 10 is prevented from opening away from the opposing frame 73, It is possible to maintain a state in which the space 73 between the panels is hermetically sealed with the rubber packing 82.

As shown in FIGS. 10 and 11, the door panel 10 is provided with a handle 91 and a slide bar 92 on the side of the free end facing the side provided with the support shaft 81.
As shown in FIGS. 14 and 15, the handle 91 is connected to the drive piece 94 via the spindle shaft 93, and when the handle 91 is rotated around the axis of the spindle shaft 93, the drive piece 94 is attached to the spindle shaft 93. It rotates around the axis.

  The slide bar 92 is slidably held up and down by a holding fitting 95 fixed to the door panel 10, and has an opening 92 a into which the drive piece 94 is inserted on the side surface, and the opening edge 92 b of the opening 92 a is the drive piece 94. In contact with the working edge 94a.

  Further, the slide bar 92 has a plurality of engagement holes 92c on the main surface, and a plurality of fastening hooks 96 that engage with the respective engagement holes 92c are provided on the door bracket 77 or the partition panels 6a and 6c. Yes. The fastening hook 96 is formed with a wedge-shaped edge portion 96 a that is in sliding contact with the opening edge 92 d of the engagement hole 92 c and a lock edge portion 96 b that is in contact with the back surface of the slide bar 92.

  The holding metal fitting 95 has a large opening 95 a at a position corresponding to the engagement hole 92 c of the slide bar 92 and an opening (not shown) at a position corresponding to the opening 92 a of the slide bar 92.

  As shown transparently in FIG. 11, the holding metal fitting 95 has an anti-falling metal fitting 95 b made of an elastic body inside the lower end side, and the anti-falling metal fitting 95 b is provided at the tip of the anti-falling piece 95 c when the door panel 10 is opened. Engages with the engagement hole 92c of the slide bar 92 in the opening 95a to support the slide bar 92, and prevents the slide bar 92 from dropping to a position where the opening 95a is closed.

  With the above configuration, as shown in FIG. 14A, the door panel 10 is fully closed, the engagement holes 92c of the slide bar 92 respectively correspond to the fastening hooks 96, and the tips of the wedge-shaped edges 96a are engaged. Positioned inside the hole 92c, the fastening hook 96 presses the fall prevention piece 95c of the fall prevention metal fitting 95b inward to release the engagement between the fall prevention piece 95c and the engagement hole 92c of the slide bar 92, The handle 91 is rotated in the locking direction.

  As shown in FIG. 14B, the drive piece 94 is rotated with the rotation of the handle 91, the opening edge 92b of the opening 92a is pressed by the working edge 94a, and the slide bar 92 is pressed downward. . At this time, the opening edge 92d of the engagement hole 92c is in sliding contact with the wedge-shaped edge 96a of the fastening hook 96, and the wedge-shaped edge 96a closes the slide bar 92 and the door panel 10 as the slide bar 92 moves downward. The rubber packing 82 provided on the rear surface of the door is elastically deformed to hermetically seal between the door panel 10 and the opening edge of the casing 1.

  As shown in FIG. 14 (c), the locking edge 96 b of the fastening hook 96 abuts against the back surface of the slide bar 92 in the locked state and stops opening. For this reason, even if the door panel 10 receives the pressure inside the casing 1 and curves outward, the side edge of the door panel 10 can be prevented from opening away from the opening edge of the casing 1, and the rubber packing 82 provides airtightness. It is possible to maintain the state of sealing. When the door panel 10 is opened, the above-described operation is performed in the reverse procedure to release the lock.

Further, when the door panel 10 is opened, the fall prevention fitting 95b of the holding fitting 95 is engaged with the engagement hole 92c of the slide bar 92 at the opening 95a, and the slide bar 92 is held so as not to drop to the closed position due to gravity. . For this reason, the handle 91 and the slide bar 92 are held in the open position, the door panel 10 is inadvertently closed, and the fastening hook 96 does not come into contact with the slide bar 92, so that the slide bar 92 is damaged. Can be prevented.
(Other door structure)
The door panel 10 can also have a structure shown in FIGS. This is one in which a slide bar 92 is fixed on both sides of the rear surface of the door panel 10 and a pair of fixed handles 97 as gripping portions are provided at predetermined positions on the surface of the door panel 10.

With this configuration, the door panel 10 is opened and closed by holding the fixed handle 97 and sliding the door panel 10 in the vertical direction.
At the time of the closing operation, as shown in FIG. 18A, the door panel 10 is disposed at the fully closed position, the engagement holes 92c of the slide bar 92 respectively correspond to the fastening hooks 96, and the tip of the wedge-shaped edge 96a The door panel 10 is moved downward in a state of being positioned inside the engagement hole 92c.

  At this time, as shown in FIG. 18B, the opening edge 92d of the engagement hole 92c is in sliding contact with the wedge-shaped edge 96a of the fastening hook 96, and the wedge-shaped edge 96a as the door panel 10 moves downward. Tightens the slide bar 92 and the door panel 10 in the closing direction, and the rubber packing 82 is elastically deformed to hermetically seal between the door panel 10 and the opening edge of the casing 1.

As shown in FIG. 18 (c), the locking edge 96 b of the tightening hook 96 abuts against the back surface of the slide bar 92 in the locked state to prevent it from opening. For this reason, even if the door panel 10 receives the pressure inside the casing 1 and curves outward, the side edge of the door panel 10 can be prevented from opening away from the opening edge of the casing 1, and the rubber packing 82 is airtight. It is possible to maintain the state of sealing. When the door panel 10 is opened, the above-described operation is performed in the reverse procedure to release the lock.
(Other embodiments)
In the above embodiment, the casing 1 of the air conditioner is divided into the return air chamber 7, the outside air chamber 8, and the air supply chamber 9 by the partition panels 6a, 6b, 6c, but the present invention is not limited to this. For example, the partition panel 6a is the wall panel 3 and an air conditioner having an outside air chamber 8 and an air supply chamber 9 and an upper and lower partition panel are arranged, and the return air is provided above the air supply chamber. It may be an air conditioner in which a chamber is arranged.

The perspective view which shows the air conditioner in embodiment of this invention Cross section of the air conditioner Cross section of the main part of the air conditioner Exploded perspective view of the outside air chamber of the air conditioner (A) Exploded perspective view of the air supply chamber of the air conditioner, (b) Cross-sectional view of the main part of the air conditioner (A) The perspective view which shows the drain pan of the air conditioner, (b) AA arrow sectional drawing, (c) BB arrow sectional drawing, (d) The perspective view of the mount frame of the air conditioner Cross section of the air conditioner (A)-(c) Sectional drawing which shows the connection structure of a panel (A) And (b) Sectional drawing which shows the connection structure of a panel (A) Front view of the door panel of the air conditioner, (b) Plan view of the door panel, (c) Left side view of the door panel, (d) Bottom view of the door panel, (e) The door Panel right side view Rear view of the door panel of the air conditioner (A)-(c) Explanatory drawing which shows the opening / closing operation | movement of the door panel of the same air conditioner. Explanatory drawing which shows engagement of the locking hook and the locking plate of the air conditioner (A)-(c) Explanatory drawing which shows the opening / closing operation | movement of the locking mechanism of the door panel in the same air conditioner. Sectional drawing which shows the locking mechanism of the door panel of the air conditioner (A) Front view showing another door panel of the air conditioner, (b) Plan view of the door panel, (c) Left side view of the door panel, (d) Bottom view of the door panel, (e ) Right side view of the door panel Rear view of the door panel of the air conditioner (A)-(c) Explanatory drawing which shows the opening / closing operation | movement of the locking mechanism of the door panel in the same air conditioner. Sectional drawing which shows the locking mechanism of the door panel of the air conditioner

Explanation of symbols

RA return air OA outside air SA air supply EA exhaust 1 casing 2 mount (drain panel)
3 Wall panel panels 4, 5 Top panel panels 6a, 6b, 6c Partition panel 7 Return air chamber 8 Outside air chamber 9 Supply air chamber 10 Door panel 11 Return air port 12 Outside air port 13 Supply air port 14 Exhaust port 15 Supply air ventilation Route 16 Return air / exhaust fan device 17 Damper device 18 Pre-filter 19 Medium performance filter 20 Filter unit 21 Cooling coil 21a Bottom plate 21b Drain hole 22 Heating coil 23 Heat exchanger 24 Humidifier 25 Air supply fan device 26 Opening 31 Fan 32 Drive motor 33 Base plate 34 Connecting rod 35 Motor stud 36 Rubber seal material 37 Coil spring 38 Connection bolt 39 Mounting base 41 Opening portion 41a Lower end edge 42 Closing plate 43 Lower guide rail plate 43a Rail portion 43b Leg portion 43c Engagement piece portion 43d Lower end edge Part 43e Bolt 43f Slit 44 Upper guide rail plate 4 a Slit 44b Front edge 44c Bolt 45 Side plates 45a, 45b Engagement piece 46 Slit 51 Fixing bolt 52 Connection bolt 61 Drain pan 62 Frame 63 Drain outlet 71 Outer plate 71a Peripheral portion 72 Urethane foam 73 Frame 73a Inserting groove 73b Coupling concave portion 73c Corner portion 73d Protrusion 74 Connection bar 74a Protrusion 74b Joining piece portion 74c Elastic connecting portion 74d Elastic piece portion 75 Gasket 75a Fitting portion 75b Sealing portion 76 L-shaped fitting 77 Door receiving fitting 78 Door support fitting 79 Corner member 79a Corner portion 79b Joint piece portion 81 Support shaft 82 Rubber packing 82a Fitting portion 82b Seal portion 83 Opening hook 83a Hook portion 83b Inclined edge portion 83c Hook-shaped edge portion 84 Opening stop plate 84a Slit 84b Opening edge 91 Handle 92 Slide bar 92a opening 92b Opening edge 92c Engagement hole 92d Opening edge 93 Spindle shaft 94 Drive piece 94a Working edge 95 Holding bracket 95b Fall prevention bracket 96 Tightening hook 96a Wedge-shaped edge 96b Lock edge 97 Fixed handle (grip)

Claims (4)

An air conditioner characterized in that a casing is formed by joining a plurality of heat insulating panels, and the heat insulating panels are arranged as partition walls that partition a ventilation path inside the casing. The partition wall has a filter unit mounted on one surface on the upstream side and a heat exchanger mounted on the other surface on the downstream side, and has an opening for communicating the filter unit and the heat exchanger. The air conditioner according to claim 1. The air conditioner according to claim 1 or 2, wherein the heat insulating panel is formed by filling a heat insulating material in a frame formed of a heat insulating material forming an outer peripheral edge. The air conditioner according to claim 2, wherein the opening edge of the lower end of the opening of the partition wall is positioned higher than the bottom surface of the heat exchanger by a predetermined distance, and a drain hole is provided in the bottom surface of the heat exchanger.

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