JP4425007B2 - Ventilation unit - Google Patents

Description

  The present invention relates to a ventilation unit that is suspended from a ceiling.

  Conventionally, the built-in type has been the mainstream with a ventilation function. However, this built-in type has a drawback that it takes a great amount of construction cost and construction period when installed in an existing building. In order to solve this problem, a type in which the total heat exchanger is separated from the air conditioner has been proposed. However, in this case, air having different air quality, temperature, humidity, etc. from the air outlet of the air conditioner is blown out from the total heat exchanger, so that the indoor air becomes uneven. There is.

Therefore, an air conditioner main unit and a total heat exchanger main unit are proposed (for example, Patent Document 1). In recent years, these integrated units are further suspended on the ceiling. Has been proposed.
No. 3-3871

  However, the ventilation unit of the type suspended from the ceiling has a problem that it becomes difficult to perform maintenance when the blower breaks down. In particular, in the case where the ventilation unit is provided with a storage part for the total heat exchange element and a storage part for the blower side by side, and further provided with a blower duct at the lower part of the blower storage part, this blower duct is obstructive. It becomes difficult to take out the failed blower below the ventilation unit. If the ventilation unit is suspended from the ceiling and pulled out forcibly, the blower duct will be removed and then the blower will be taken out through the opening. Work.

  Then, the objective of this invention is providing the ventilation unit which can remove the air blower easily in the state which solved the subject which the prior art mentioned above has, and suspended the ventilation unit on the ceiling.

The present invention includes, in a total enthalpy heat exchanger main body suspended ceiling provided side by side and a housing part of the blower and the housing portion of the total heat exchange element comprises a ventilation duct in the lower part of the blower housing portion, the blower Including an air supply fan and an exhaust fan, each fan is housed integrally in an air passage forming body made of foamed resin, a protective member is disposed outside the air passage forming body, and a lower part of the total heat exchange element housing portion After removing the suction grill provided and taking out the total heat exchange element through the opening of the suction grill, the blower in the blower storage section is slid to the total heat exchange element storage section side integrally with the air passage forming body , and The blower and the air path forming body are configured to be freely taken out below the total heat exchanger main body through the opening of the suction grill.

  In the present invention, for example, maintenance such as when a blower breaks down is extremely easy. With the ventilation unit suspended from the ceiling, first, the suction grill provided at the lower part of the total heat exchange element housing is removed, and then the total heat exchange element is taken out through the opening of the suction grill. Thereafter, the blower in the blower storage section is slid toward the total heat exchange element storage section, and the blower is taken out below the total heat exchanger main body through the opening of the suction grille. According to this, when taking out a failed blower, it is possible to easily take out the blower through its opening by simply removing the suction grill, which is easy to attach and detach, without removing the blow duct provided at the lower part of the blower housing part. Can do.

  In this case, the total heat exchange element storage unit and the blower storage unit may be provided side by side in the depth direction of the total heat exchanger main body.

Furthermore, the fan motor may be fixed before Symbol protective member. You may provide the some mounting plate for mounting a fan in the said fan accommodating part. The plurality of mounting plates may also serve as partition plates that partition the intake passage and the exhaust passage of the blower. The suction grill includes a frame portion and a grill portion supported by the opening of the frame portion, and an inspection port corresponding to the size of the frame portion is formed when the suction grill is removed. Also good. Further, an air conditioner main body may be integrated with the total heat exchanger main body.

  In the present invention, the blower inside the ventilation unit can be easily removed while the ventilation unit is suspended from the ceiling.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, 100 indicates an air conditioner, and 200 indicates a total heat exchanger. The air conditioner 100 includes a compressor 1, and an outdoor heat exchanger 3 is connected to the compressor 1 via a four-way valve 2. An indoor heat exchanger 6 is connected to the outdoor heat exchanger 3 via two mechanical valves 4 and 5, and an accumulator 7 is connected to the indoor heat exchanger 6 via the four-way valve 2, and the accumulator 7 is connected to the compressor 1.

  In the air conditioner 100, solid arrows indicate the refrigerant flow during the cooling operation. The refrigerant discharged from the compressor 1 reaches the outdoor heat exchanger 3 through the four-way valve 2 and condenses here. Then, it reaches the indoor heat exchanger 6 through the mechanical valves 4 and 5, where it receives and evaporates air from the indoor blower 6 </ b> A, and returns to the compressor 1 through the four-way valve 2 and the accumulator 7. The conditioned room is cooled by the air blown by the indoor blower 6A described above.

  Dashed arrows indicate the flow of refrigerant during heating operation. In this case, the refrigerant discharged from the compressor 1 reaches the indoor heat exchanger 6 through the four-way valve 2, where it is condensed by receiving air from the indoor fan 6A, and then through the mechanical valves 5 and 4. It reaches the outdoor heat exchanger 3. And it evaporates here and returns to the compressor 1 through the four-way valve 2 and the accumulator 7. The conditioned room is heated by the air blown by the indoor blower 6A described above.

  The total heat exchanger 200 includes the total heat exchange element 11. The total heat exchange element 11 is formed by placing a flat sheet on a meander-folded folded paper and stacking the folded paper on the folded paper with the folding direction changed. Bending paper and flat paper are laminated in order. The total heat exchange element 11 is supplied with outside air and supplied with exhaust (inside air) from the conditioned room. After the heat exchange between the inside air and the outside air, the outside air is supplied to the conditioned room, and the inside air is exhausted outside the conditioned room. Here, after passing through the air supply duct 12 and the air supply fan 13, the outside air reaches the total heat exchange element 11 through the outside air filter 14, and from here, the air supply air passage 15, the humidifier 16, the blowout flap 17, and the blowout louver. 18 is blown out into the conditioned room. A humidifying tank 500 is connected to the humidifier 16. If water is supplied directly to the tank, humidified water is sequentially supplied to the humidifier 16.

  The inside air from the conditioned room reaches the total heat exchange element 11 via the suction grille 21, and is exhausted outside the room via the damper 22, the exhaust fan 23, and the exhaust duct 24 via the total heat exchange element 11. The damper 22 can block the air path, and when this interrupts the air path, the inside air that has passed through the suction grille 21 bypasses the total heat exchange element 11 and reaches the exhaust fan 23 via the normal ventilation air path 25. The air is exhausted outside through the exhaust duct 24.

  Reference numeral 400 denotes a remote controller that controls the operation of the air conditioner 100. The remote controller is configured by housing the control unit 401 of the air conditioner body 100A and the control unit 402 of the total heat exchanger body 200A in one case. Is done. Here, the control unit 401 controls the indoor blower 6A, the mechanical valve 5, and the like, and the control unit 402 controls the exhaust fan 23, the intake fan 13, and the like. Thus, by packaging the two control units 401 and 402 in one remote control 400, the microcomputer in the remote control can be shared, and the cost of the remote control is reduced and the operability of the remote control is improved.

  FIG. 2 is a perspective view of the air conditioner 100 as viewed from below.

  In the present embodiment, the air conditioner 100 includes an air conditioner main body 100A suspended from a ceiling, and a total heat exchanger main body for outdoor air temperature control (integrated by being connected to a rear portion of the air conditioner main body 100A). Ventilation unit) 200A.

  As shown in FIG. 3, the indoor heat exchanger 6, the indoor blower 6 </ b> A, the drain pan 6 </ b> B, and the electrical box 19 are arranged in the air conditioner main body 100 </ b> A. The suction grill 9 has a filter 9 </ b> A. Is arranged. When this is operated, the inside air is sucked in via the suction grille 9, and this inside air reaches the indoor heat exchanger 6 via the indoor blower 6 </ b> A, where it exchanges heat with the refrigerant, and then is covered through the outlet 32. It is blown out into the harmony room.

  Inside the total heat exchanger main body 200A, the total heat exchange element 11, the air supply fan 13, the exhaust fan 23, and the like described above are arranged, and a filter 21A is arranged on the suction grille 21 thereof. When this is operated, the inside air is sucked in through the suction grille 21, and this inside air reaches the total heat exchange element 11, where it is exhausted outside through the exhaust fan 23 after exchanging heat with the outside air. . The suction grill 21 includes a frame portion 500 that does not have a ventilation hole and a grill portion 501 that has a ventilation hole supported by an opening of the frame portion 500. The suction grill 21 is removed from the total heat exchanger main body 200A. In this case, an opening (inspection port) corresponding to the size of the frame portion 500 is formed on the lower surface of the total heat exchanger main body 200A.

  On the other hand, the outside air reaches the total heat exchange element 11 via the air supply fan 13, and after heat exchange with the inside air, the air supply air passage 15 (see FIG. 1), the humidifier 16, the blowout flap 17, the blowout air After passing through the louver 18 and the like, the air is blown out from the blow-out port 34 to the conditioned room. Supply / exhaust ducts 12 and 24 are connected to the total heat exchanger main body 200A, and these supply / exhaust ducts 12 and 24 are connected to the lower surface or the rear surface of the total heat exchanger main body 200A.

  When the damper 22 shown in FIG. 3 operates, the outlet of the total heat exchange element 11 in the discharge path of the inside air is blocked, and the inside air bypasses the total heat exchange element 11 and passes through the normal ventilation air path 25 (see FIG. 1). Then, the exhaust fan 23 is reached and exhausted to the outside through the exhaust duct 24. In addition, illustration of the humidifier 16, the blowing flap 17, etc. is abbreviate | omitted in FIG.

  In the above configuration, the outlets 32 and 34 of the main bodies 100A and 200A are formed independently. The air outlets 32 and 34 are arranged close to each other, and the air blown from the air outlet 32 of the air conditioner main body 100A and the air blown from the air outlet 34 of the total heat exchanger main body 200A are blown out. The outlets of the ports 32 and 34 are configured to be freely mixed. Thus, each outlet 32 and 34 is independent, and the air of the total heat exchanger main body 200A does not enter the air conditioner main body 100A in this unit.

  In this configuration, for example, when the air flow rate of the air conditioner body 100A is designed to be 1000 m3 / h and the suction air volume of the total heat exchanger body 200A is designed to be 500 m3 / h, the air outlets 32 and 34 are independent of each other. Therefore, the circulating air volume at that time is maintained at 1500 m 3 / h. Incidentally, if the supply air path of the total heat exchanger main body 200A is connected to the primary side of the heat exchanger of the air conditioner main body 100A as in the conventional configuration, each air volume is temporarily the same as above. Even if designed, the circulating air volume at that time is much lower than 1500 m 3 / h, but rather the air volume is slightly increased. For this reason, the circulation air volume becomes insufficient, fresh air quality cannot be obtained, and the temperature distribution performance is lowered.

  In the said structure, since the blower outlets 32 and 34 are each independent, a circulating air volume becomes large and, thereby, fresh air quality is obtained and high temperature distribution performance can be obtained.

  As shown in FIG. 3, the height H1 of the air conditioner main body 100A is formed lower than the height H2 of the total heat exchanger main body 200A. An air supply path 15 of the heat exchanger body 200A is disposed. Then, the total height of the total heat exchanger main body 200A including the air supply air passage 15 is formed to be substantially equal to the height H1 of the air conditioner main body 100A.

  At the front end portion of the air supply air passage 15, there is provided a blowout opening 34 having a width substantially the same as the width of the air supply airflow path 15, and the full width of the blowout opening 34 is as shown in FIG. It is formed to be equal to the entire width of the outlet 32. Further, as shown in FIG. 3, the air outlet 34 of the total heat exchanger main body 200A guides the air blown from the air outlet 34 to the air outlet 32 side of the air conditioner main body 100A. Means) 35 is arranged. If the mounting angle of the guide vanes 35 is appropriately adjusted, the mixing effect at the outlets of the outlets 32 and 34 can be enhanced.

  By the way, as shown in FIG. 3, the total heat exchanger main body (ventilation unit) 200A suspended from the ceiling includes the storage part A of the total heat exchange element 11 and the storage parts B of the blowers 13 and 23 therein. The blower duct 201 including the air supply and exhaust ducts 12 and 24 is provided with a plurality of screws (not shown) at the lower part of the blower housing part B that is provided side by side in the depth direction of the total heat exchanger main body 200A. ). Here, when pulling out the air supply / exhaust ducts 12 and 24, generally, pulling out from the lower part of the blower housing part B or pulling out from the back is proposed. However, as shown in the figure, when there is a wall surface 300 or the like on the rear side of the air conditioner 100, for example, when the air supply / exhaust ducts 12 and 24 are pulled out from the back, the air conditioner 100 is moved closer to the wall surface 300 and installed. It can't be done and looks bad. On the other hand, when the supply / exhaust ducts 12 and 24 are pulled out from the lower part of the main body 200A, the ducts can be routed rearward simply by attaching one elbow 301 to the duct. According to this, not only the duct routing operation is facilitated, but the air conditioner 100 can be installed close to the wall surface 300, and the appearance is improved.

  However, when it is pulled out from the lower part of the blower storage part B, the blower duct 201 is located at the lower part of the blower storage part B. In this case, the blower duct 201 becomes an obstacle, and maintenance of the blowers 13 and 23 is troublesome. become.

  In the present embodiment, the fans 13 and 23 stored in the fan storage unit B can be easily taken out by the following configuration. That is, as shown in FIG. 4, each of the fans 13 and 23 is stored together in an air passage forming body 202 made of foamed resin having a width W, a length L, and a height H (FIG. 3). This air path forming body 202 has a plurality of mountings having a length W2 and a height H3 (FIG. 3) fixed at intervals in the length L direction with both ends regulated by a regulating member 205. It is mounted on the mounting plate 203.

  The plurality of mounting plates 203 also serve as partition plates that divide the intake passage and the exhaust passage in the two blowers 13 and 23.

  And in order to regulate the horizontal position of the air path formation body 202, as shown in FIG. 3, the total heat exchange element storage part A has a width W1, a length L1 (FIG. 4), and a foamed resin having a height H2. A made element casing 204 (FIG. 7) is fitted, and the total heat exchange element 11 is attached to the casing 204.

  Further, as shown in FIG. 8, a plate member (protective member) 600 made of a sheet metal is provided at the lower portion of the air path forming body 202. The plate member 600 has fans corresponding to the blowers 13 and 23. The motor 601 is fixed.

  Next, the removal procedure will be described.

  First, as shown in FIG. 5, the suction grille 21 provided at the lower part of the total heat exchange element storage part A is removed, and as shown in FIG. 6, the outdoor air filter 14 attached to the total heat exchange element 11 is removed. Then, as shown in FIG. 7, the total heat exchange element 11 is removed, and the element casing 204 is further removed. In this state, as shown in the figure, the total heat exchange element storage portion A is empty. Then, as shown in FIG. 8, the air path forming body 202 in the blower housing part B is slid in the direction of the arrow P to a position where it is removed from the plurality of placement plates 203. And if the air path formation body 202 remove | deviates from the mounting board 203, it will descend | fall to the arrow Q direction, supporting it with a hand, and will take out the air path formation body 202 out of a ventilation unit.

  Here, the above-described air passage forming body 202 is made of a foamed resin, and its external appearance is easily damaged. However, since a plate member 600 made of sheet metal is provided at the lower part thereof, the air path forming body 202 is slid in the direction of arrow P in the blower storage part B or the total heat exchange element storage part A. Even if it is lowered in the direction of arrow Q, the air path forming body 202 is not damaged, and its shape is sufficiently protected.

  Next, after taking out each fan 13 and 23 from this air path formation body 202, maintaining and repairing it, it is similarly accommodated in the air path formation body 202, and this is put into the air blower accommodating part B in the reverse procedure to the said procedure. Fit.

  In this embodiment, when taking out the air path formation body 202 which accommodated the air blowers 13 and 23, the suction grill 21 with easy attachment or detachment is removed, without removing the air duct 201 provided in the lower part of the air blower accommodating part B one by one. The air path forming body 202 can be taken out of the ventilation unit through the opening.

  Further, since the suction grille 21 is composed of the frame part 500 and the grille part 501, when the suction grille 21 is removed, the size of the frame part 500 is placed below the total heat exchange element storage part A. An opening (inspection port) corresponding to is formed. Therefore, the air passage formation body 202 can be taken in and out through this large inspection port, and the work becomes easy. Further, if the general-purpose grill portion 501 is attached to the frame portion 500, it is not necessary to manufacture a suction grill dedicated to this product, and the cost can be reduced.

  As mentioned above, although this invention was demonstrated based on one Embodiment, it cannot be overemphasized that this invention is not limited to this. For example, in the above configuration, two fan casings are housed in one air passage forming body 202, but the present invention is not limited to this, and the present invention is also applied when the two fan casings are independent of each other. The

1 is a circuit diagram showing an embodiment of a ceiling-suspended air conditioner according to the present invention. It is the perspective view which looked at the same ceiling suspension type air conditioner from the bottom. It is sectional drawing of the same ceiling suspension type air conditioning apparatus. It is a top view of the same suspending type air conditioning apparatus. It is sectional drawing of the same ceiling suspension type air conditioning apparatus. It is sectional drawing of the same ceiling suspension type air conditioning apparatus. It is sectional drawing of the same ceiling suspension type air conditioning apparatus. It is sectional drawing of the same ceiling suspension type air conditioning apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Total heat exchange element 13 Supply air fan 15 Supply air path 23 Exhaust fan 100A Air conditioner main body 200A Total heat exchanger main body (ventilation unit)
A Total heat exchange element storage part B Blower storage part 201 Blower duct 202 Air path formation body 203 Mounting plate 204 Element casing

Claims (7)

Inside the total enthalpy heat exchanger main body suspended ceiling provided side by side and a housing part of the blower and the housing portion of the total heat exchange element comprises a ventilation duct in the lower part of the blower housing portion, the blower air supply fan and A suction grill including an exhaust fan, in which each fan is integrally housed in an air passage forming body made of foamed resin, a protective member is disposed outside the air passage forming body, and provided at the lower portion of the total heat exchange element housing portion And removing the total heat exchange element through the opening of the suction grille, and then sliding the blower in the blower storage unit to the total heat exchange element storage unit side integrally with the air path forming body , so that the blower and the wind A ventilation unit characterized in that the path forming body can be taken out below the total heat exchanger body through the opening of the suction grille.   The ventilation unit according to claim 1, wherein the total heat exchange element storage unit and the blower storage unit are provided side by side in the depth direction of the total heat exchanger main body. The ventilation unit according to claim 1 or 2, wherein a fan motor is fixed to the protection member. The ventilation unit according to any one of claims 1 to 3 , further comprising a plurality of placement plates for placing the blower in the blower housing portion. The ventilation unit according to claim 4, wherein the plurality of mounting plates also serve as partition plates that define an intake passage and an exhaust passage of the blower. The suction grill includes a frame portion and a grill portion supported by an opening of the frame portion, and an inspection port corresponding to the size of the frame portion is formed when the suction grill is removed. Item 6. The ventilation unit according to any one of Items 1 to 5 . The ventilation unit according to any one of claims 1 to 6 , wherein an air conditioner main body is integrated with the total heat exchanger main body.

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