JP2016065715A - Air conditioner and method of removing air blowing mechanism in air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate removal and replacement work of a fan and a motor without securing an extra replacement space within an air conditioner for attaching/detaching an air blowing mechanism.SOLUTION: An air conditioner includes: an air blowing mechanism having a fan 4, a motor 6 for driving the fan and a shaft 21 for transmitting rotation of the motor to the fan; and a fan casing 5 provided around the fan of the air blowing mechanism. A fan taking-in/out opening 18 for taking in/out the fan on the service space of the air conditioner and a shaft taking-in/out opening 11 for taking in/out the shaft on the service space side are formed in the fan casing. The fan casing includes: an attachable/detachable closing plate 19 for closing the fan taking-in/out opening; and an attachable/detachable closing plate 12 for closing the shaft taking-in/out opening.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an air conditioner including a blower mechanism and a fan casing provided around the fan, and a method for removing the blower mechanism in the air conditioner, and in particular, a computer in which servers for information communication devices are continuously installed. Suitable for room air conditioning.

  Building a computer network requires servers for communication, database, and file management. Servers are installed in the server machine room from the viewpoint of security and operational management. Each server is stored in a server rack, and the server racks are continuously installed and operated. This server generates a large amount of heat during operation, and an air conditioner is installed and operated for stable operation.

  In recent years, due to an increase in processing data, etc., it has been required to increase the density and efficiency of servers. Along with this, the capacity of air conditioners has also been reduced, high-density installation, and increased capacity (upsizing) of motors and blowers. Improvement is required.

  For example, in Patent Document 1 (Japanese Patent Laid-Open No. 2005-172309), servers are continuously installed, and a fan tower is installed between the servers. In this fan tower, the air sucked from the lower space in the room is blown into the upper space so that the cooling air is also sucked into the upper part of the server. Thus, it is disclosed that the temperature gradient in the height direction of the server is reduced.

JP 2005-172309 A

  An air conditioner requires replacement work of a fan and a motor constituting a blower mechanism for maintenance and inspection. When installing a housing on both sides of the air conditioner, it will be replaced from the front or the back of the air conditioner, but it is necessary to secure an extra space in the air conditioner when removing and installing the blower mechanism. There is. Alternatively, when the air conditioner itself is downsized without providing the exchange space in the air conditioner, it is necessary to secure an exchange space around the air conditioner for taking in and out the air blowing mechanism.

  In the thing of the said patent document 1, although the fan tower is pinched | interposed and arrange | positioned by the server, there is no space for exchanging a fan etc. around the apparatus and in an apparatus, and there exists a possibility that replacement | exchange of a fan etc. cannot be performed.

  As described above, if an extra space is secured in the air conditioner for attaching and detaching the air blowing mechanism, it is necessary to increase the size of the air conditioner. Further, if the air conditioner itself is downsized, the installation area can be reduced. However, it is necessary to secure a space for replacing a fan or the like around the air conditioner.

  Furthermore, in order to improve the blowing capacity, the motor and the blower tend to be increased in size. However, when these weights increase, the handling becomes worse, and there is a problem that the replacement work takes time.

  An object of the present invention is to provide an air conditioner and an air conditioner that can easily take out and replace a fan and a motor without securing an extra space in the air conditioner when removing and attaching the air blowing mechanism. The object is to obtain a method for removing the blower mechanism.

  In order to solve the above problems, the present invention is provided around a fan, a fan, a motor for driving the fan, a blower mechanism having a shaft for transmitting rotation of the motor to the fan, and the fan of the blower mechanism. In the air conditioner including a fan casing, the fan casing includes a fan opening / closing opening for inserting / removing the fan to / from the service space side of the air conditioner, and a shaft for inserting / removing the shaft to / from the service space side. And a detachable closing plate for closing the fan loading / unloading opening and a detachable closing plate for closing the shaft loading / unloading opening. .

  Other features of the present invention include a fan, a motor for driving the fan, a blower mechanism having a shaft for transmitting rotation of the motor to the fan, and a fan casing provided around the fan of the blower mechanism. In the method for removing a blower mechanism in an air conditioner, the fan casing includes a fan opening / closing opening for inserting / removing the fan to / from the service space side of the air conditioner, and the shaft to / from the service space side. And a fan insertion / removal opening and a shaft insertion / removal opening are respectively closed with removable cover plates, and the blower mechanism is connected to the service space side. When removing the sealing plate, the sealing plate blocking the respective openings is removed. Thereafter, the fan constituting the air blowing mechanism is taken out from the shaft taking-in / out opening, and the shaft is taken out from the shaft taking-in / out opening to the service space side in a state where the fan and the shaft are coupled. It is in the removal method of the ventilation mechanism in the air conditioner characterized.

  According to the present invention, in an air conditioner and an air conditioner that can easily take out and replace a fan and a motor without securing an extra space in the air conditioner for attaching and detaching the air blowing mechanism. A method for removing the blower mechanism can be obtained.

The figure explaining the whole structure of the air-conditioning system in the computer room where the server for information communication equipment is installed continuously. It is the front view which shows Example 1 of the air conditioner of this invention, The figure which took the front door and showed the internal structure. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The front view of the fan casing periphery of the state which removed the front obstruction board and the left and right inlet ring from the state of FIG. The right view of FIG. FIG. 5 is a left side view of FIG. 4 in which only the front half is shown and the back half is omitted. FIG. 3 is a front view of the periphery of the fan of FIG. 2, showing a state where front and side closing plates, a motor-side inlet ring, a motor base fixing bolt, and the like are removed. FIG. 8 is a left side view of FIG. 7, in which only the front half is shown, the back half is omitted, and the side blocking plate is further removed. FIG. 8 is a plan view of FIG. 7 for explaining a fan take-out direction. It is the front view which shows Example 2 of the air conditioner of this invention, The figure which took the front door and showed the internal structure. FIG. 11 is a cross-sectional view taken along line B-B in FIG. 10. It is a top view around the fan shown in FIG. 10, and is a figure explaining the taking-out direction of a fan. It is the front view which shows the conventional air conditioner, The figure which took the front door and showed the internal structure. FIG. 14 is a cross-sectional view taken along line CC in FIG. 13.

  Hereinafter, specific embodiments of the air conditioner of the present invention will be described with reference to the drawings. In addition, the part which attached | subjected the same code | symbol in each figure has shown the part which is the same or it corresponds.

  FIG. 1 is a diagram for explaining the overall configuration of an air conditioning system in a computer room in which servers for information communication equipment are continuously installed. In the figure, reference numeral 30 denotes a computer room. Computers 31 such as servers are continuously installed. 32 is an indoor unit of the air conditioning system installed in the computer room 30, and 33 is an outdoor unit of the air conditioning system.

  The indoor unit 32 and the outdoor unit 33 are connected by a refrigerant pipe 34. The outdoor unit 33 has an outdoor heat exchanger serving as a condenser, a fan for supplying outdoor air to the outdoor heat exchanger, and the like. Is provided. In addition, as shown in FIG. 2 and FIG. 3, the indoor unit 32 includes an indoor heat exchanger serving as an evaporator, a fan for supplying indoor air to the indoor heat exchanger and cooling the indoor air, A compressor and an expansion valve for compressing the refrigerant are provided. A refrigeration cycle is configured by sequentially connecting the compressor, the outdoor heat exchanger, the expansion valve, the indoor heat exchanger, and the like through the refrigerant pipe.

  The computer room 30 is a free access floor 35, and the cold air from the indoor unit is blown out into the passage of the free access floor 35, and is supplied to the entire computer room 30 from here to cool the computer 31 and the like. . Air whose temperature has risen due to cooling of the computer 31 and the like flows into the upper part of the computer room 30 and is sucked into the indoor unit 32 from the upper part of the indoor unit 32, and is cooled again by the indoor heat exchanger, and the free access floor. The cycle of blowing into 35 passages is repeated.

  In the example shown in FIG. 1, two outdoor units 33 and two indoor units 32 are shown. However, the outdoor unit 33 depends on the size of the computer room 30 and the number of computers 31 installed. And the number of indoor units 32 is increased.

  A large number of computers 31 are usually installed in the computer room 30, and it is necessary to increase the number of indoor units 32 installed in the computer room 30 or to install a larger capacity indoor unit 32. However, if the indoor units 32 are densely arranged in the computer room 30 or installed close to the computer 31, they are removed when the fan or motor is replaced for maintenance and inspection of the indoor units. It becomes difficult to secure a sufficient exchange space around the indoor unit (air conditioner) for taking in and out.

  For example, when a large number of the indoor units 32 are arranged side by side along the wall surface of the computer room 30, the fan or motor replacement space (service space) can be secured only on the front surface (front surface) of the indoor unit 32.

Here, the structure of a conventional air conditioner (indoor unit) will be described with reference to FIGS. FIG. 13 is a front view showing the internal structure by taking the door on the front of the housing, and FIG. 14 is a cross-sectional view taken along the line CC of FIG. 13 (side view showing the internal structure).
In these drawings, 1 is a housing, 2 is a suction port of the housing provided on the upper surface of the housing 1, 3 is a heat exchanger, 4 is a fan (for example, a centrifugal fan), 5 is a fan casing, 6 Is a motor, 7 is an electrical room, 8 is a machine room, 9 is a terminal box, and 10 is a blower outlet of a housing provided on the lower surface of the housing 1 or the like.

Air is sucked in from the suction port 2 of the housing 1 (suction air 22), is exchanged with the refrigerant through the heat exchanger 3, is sucked into the fan 4 and is discharged from the outlet 10 to the free access floor (double Air is blown into the passage of the floor (blow air 23).
As shown in the side cross-sectional view of FIG. 14, the heat exchanger 3 is configured so that air sucked from the suction port 2 at the top of the housing 1 can easily pass through and the installation area of the heat exchanger 3 is increased. It is provided diagonally.

  The fan 4 sucks air from the axial direction (side surface) and blows it out in the radial direction (peripheral direction), and a centrifugal fan is mainly used. The fan 4 is provided with the fan casing 5 covering the fan 4, and the air blown out from the fan 4 is collected by the fan casing 5 and blown out from an opening (discharge port) of the fan casing 5.

  In the conventional air conditioner shown in FIGS. 13 and 14, a case where a plurality of casings 1 are installed side by side in a computer room and the fan 4 and the motor 6 are replaced will be described. First, the fixing of the fan 4 and the motor 6 is released, and then the motor 6 is moved to the opposite side of the fan casing 5 (left direction in FIG. 13) to remove the motor 6 and pull it out to the service space in front of the housing. . Next, the fan 4 is pulled out from the left side surface of the fan casing 5 to the space where the motor 6 has been installed, and the fan 4 is pulled out from here to the service space in front of the housing.

  In the case of such a conventional air conditioner, the fan 4 needs to be slid to the side of the fan casing 5, so that a take-out space corresponding to at least the width of the fan 4 is provided in the housing 1 on the side of the fan casing 5. Therefore, the lateral width of the housing 1 becomes large.

Compared to the conventional air conditioner described above, recently, a service space that can move the motor is secured in the air conditioner, and a fan is inserted into and removed from the front of the fan casing (surface on the service space side). It has also been considered that a fan or a motor can be taken out into the front service space by providing an opening for the purpose. In this way, even if a large service space cannot be provided in the air conditioner, it is possible to replace the fan and the motor simply by providing a service space where the motor can be moved. The installation area can be reduced by downsizing.
However, even in this case, it is necessary to remove and install the fan in the air conditioner, and it is necessary to provide a service space in the air conditioner for moving the motor.

A first embodiment of an air conditioner (indoor unit) according to the present invention, which is an improvement of the conventional air conditioner and the like, will be described with reference to FIGS.
FIG. 2 is a front view showing Embodiment 1 of the air conditioner of the present invention, and is a view showing the internal structure by taking the front door, and FIG. 3 is a cross-sectional view taken along line AA in FIG.

  2 and 3, reference numeral 1 denotes a housing, 2 denotes a suction port of the housing provided on the upper surface of the housing 1, 3 denotes a heat exchanger, 4 denotes a fan, and in this embodiment, the fan 4 A centrifugal fan (turbo fan or sirocco fan) is used. 5 is a fan casing, 6 is a motor that is connected to the fan 4 and drives the fan 4, 7 is an electrical chamber, 8 is a machine chamber, 9 is a terminal box (terminal block), 10 is a lower surface of the housing 1, etc. It is the blower outlet of the housing | casing provided in. The machine room 8 is provided with a compressor 20 for compressing the refrigerant of the refrigeration cycle.

The fan casing 5 is provided around the fan 4, and air is sucked from the side surface of the fan casing 5 and blown out in the radial direction. The fan casing 5 is configured to collect air blown out from the fan 4 and blow it out from a blowout port 10 provided in the lower surface of the housing 1 to a passage (lower space) of a free access floor. Yes.
In the conventional air conditioner shown in FIG. 14, the fan casing 5 has a spiral shape. However, in this embodiment, the fan casing 5 has a simple box shape surrounding the fan as shown in FIG. It has a polygonal structure.

  Further, in this embodiment, the housing 1 is not provided with an extraction space corresponding to the width of the fan 4 as described with reference to FIG. Further, it is not necessary to provide a service space for moving the motor in order to separate the fan 4 and the motor 6 in the air conditioner. For this reason, in this embodiment, the width of the casing 1 is configured to be significantly smaller than that of the conventional case.

In this embodiment, the fan 4 has a single-side arrangement structure attached only to one end side of the motor 6. However, a shaft is provided on both sides of the motor (that is, a double-axis motor). A double-sided arrangement with a fan attached to the shaft can also be used. Further, a plurality of the air blowing mechanisms and a plurality of the fan casings 5 may be arranged in one housing 1 by using the one-side arrangement structure and the both-side arrangement structure in combination.
Further, the structure of the fan 4 itself is not limited to the double-sided suction structure (double-suction type), and may be a single-sided suction structure (single-suction type).

  4 is a front view of the periphery of the fan casing with the front closing plate and the left and right inlet rings removed from the state of FIG. 2, FIG. 5 is a right side view of FIG. 4, and FIG. 6 is a left side view of FIG. Only the half on the front side is shown, and the half on the back side is omitted.

  As shown in FIG. 4, the fan 4 is directly connected to the shaft 21 of the fan motor 6 and is rotated by driving the motor 6. The shaft 21 is connected to the inside of the fan 4 by a fastening screw 17. The fastening of the shaft 21 and the fan 4 is not limited to the fastening screw 17, but may be anything that can fix them. The motor 6 is fixed on a motor base 13, and the motor base 13 is attached to the base portion of the casing 1 with bolts 16.

  Inlet rings 14 and 15 are removably attached to the fan casing 5 at both suction portions which are side surfaces of the fan 4. These inlet rings 14 and 15 are provided to prevent the air sucked into the fan 4 from being mixed with the air blown into the fan casing 5 and to rectify the sucked air. By providing the fan casing 5 and the inlet rings 14 and 15, fan efficiency and space efficiency can be improved as compared with the case where these are not provided.

  When the door surface of the casing 1 constituting the air conditioner is front, the fan casing 5 is provided with a front opening 18 on the front and a side opening 11 (see FIG. 8) on the front side of the side. A front closing plate 19 is attached to the front opening 18 and a side closing plate 12 (see FIGS. 6 and 8) is detachably attached to the side opening 11. The height and width of the front opening 18 are determined so that the fan 4 can be taken out to the front side.

In addition, the said opening parts 11 and 18 of the fan casing 5 are the states where the said closing plates 12 and 19 were attached and blocked | closed in order to prevent a wind leak except the time of the replacement | exchange operation of the fan 4. FIG.
The fan casing 5 is made of sheet metal, and the shape may be a cylindrical shape that matches the rotation direction of the fan 4. However, if the shape is a polygonal shape, the fan casing 5 can be easily manufactured, and the closing plates 12 and 19 can be attached and detached. Also gets better.

The procedure for replacing the fan in the air conditioner of the present invention will be described with reference to FIGS. FIG. 7 is a front view around the fan of FIG. 2, showing a state in which the front and side closing plates, the motor side inlet ring, the motor base fixing bolts, and the like are removed, and FIG. 8 is a left side view of FIG. FIG. 9 is a diagram showing a state where only the front half is shown, the back half is omitted, and the side block is removed, and FIG. 9 is a plan view of FIG.
It is assumed that there is a service space in front of the casing 1 (that is, the front of the air conditioner). When the front door is opened, the fan casing 5 and the motor 6 are arranged side by side as shown in FIG. Yes. In the present embodiment, the side having the service space as viewed from the air conditioner is defined as the front of the air conditioner.

When performing the fan replacement work, first, as shown in FIG. 7, the front closing plate 19 attached to the front surface of the fan casing 5 is removed.
Next, as shown in FIG. 8, the side closing plate 12 attached to the side surface of the fan casing 5 is removed. Then, as shown in FIG. 7, the inlet rings 14 and 15 attached to the side surface of the fan casing 5 are removed and moved sideways. Further, the bolt 16 that fixes the motor base 13 is also removed.

Next, as shown in FIG. 9, the fan 4 is passed through the front opening 18 (see FIG. 7) of the fan casing 5 while the fan 4 and the motor 6 remain coupled with the shaft 21, and the side opening By passing the shaft 21 from the portion 11 (see FIGS. 7 and 8), the fan 4 and the motor 6 can be pulled out to the service space in front of the air conditioner. At this time, the inlet ring 14 is also pulled out.
After the fan 4 and the motor 6 are pulled out to the service space, the fastening screw 17 connecting the fan 4 and the motor 6 is removed, the motor 6 is moved sideways, and the shaft 21 is pulled out from the fan 6.

With the above procedure, the fan 4 and the motor 6 drawn out from the fan casing 5 to the outside (outside the air conditioner) are subjected to necessary maintenance and replacement.
When the fan 4 and the motor 6 are installed in the fan casing 5, the work procedure reverse to the above-described removal work procedure may be performed.

  As described above, in this embodiment, the operation of releasing the coupling between the fan 4 and the motor 6 in the air conditioner and moving the motor 6 to the opposite side of the fan casing 5 to pull out the shaft 21 from the fan 4. Therefore, it is not necessary to provide a motor movement space for pulling out the shaft 21 in the air conditioner. Further, unlike the conventional air conditioner shown in FIG. 13, it is not necessary to slide the fan 4 to the side of the fan casing 5, so that only the width of the fan 4 is accommodated in the casing 1 beside the fan casing 5. There is no need to provide an extraction space.

  As described above, in this embodiment, since the fan mechanism such as the fan and the motor can be easily taken out from the air conditioner without performing the work of detaching the fan in the air conditioner, There is no need to secure extra space in the air conditioner. Therefore, it is possible to obtain an air conditioner that can greatly reduce the lateral width of the housing 1 and can easily take out and replace the fan 4 and the motor 6.

  That is, in this embodiment, since the front opening 18 and the side opening 11 are provided on the service space side of the fan casing 5, the fan 4 is taken out from the front opening 18 and the shaft 21 is removed from the side opening 11. It can be taken out. For this reason, it is not necessary to move the motor 6 horizontally in the air conditioner or to remove the fan 4 after moving the fan 4 to the motor side, and the width of the air conditioner (housing 1) can be greatly reduced.

A second embodiment of the present invention will be described with reference to FIGS.
FIG. 10 is a front view showing the air conditioner of the present embodiment. FIG. 11 is a view showing the internal structure by removing the front door, FIG. 11 is a cross-sectional view taken along the line B-B in FIG. It is a top view around the fan shown in FIG.

In these drawings, the portions denoted by the same reference numerals as those in FIGS. 1 to 9 indicate the same or corresponding portions, and only the differences of the second embodiment from the first embodiment will be described.
In the first embodiment, the case where the fan 4 has a one-side arrangement structure in which the fan 4 is attached only to one end side of the motor 6 has been described. However, in the second embodiment, the motor 6 is a double-axis motor, A case where the present invention is applied to a both-side arrangement structure in which the fans 4 are attached to the shafts on both sides will be described.

  As shown in FIGS. 10 to 12, a fan 4a is provided on the right side of the fan motor 6, and a fan 4b is provided on the left side of the fan motor 6. The motor 6 and the right fan 4a are connected to a shaft 21a. The motor 6 and the left fan 4b are coupled by a shaft 21b. A fan casing 5a is provided around the right fan 4a, and air is sucked from both side surfaces of the fan casing 5 and blown out in the radial direction as in the first embodiment. The fan casing 5 is configured to collect the air blown from the fan 4 and blow it out from the blowout port 10 provided on the lower surface of the housing 1 to the passage of the free access floor. Moreover, the inlet rings 14 and 15 (refer FIG. 7) etc. are provided similarly to Example 1. FIG. Further, as in the first embodiment, the fan casing 5a is also provided with a front opening 18, a closing plate 19 for closing the opening, a side opening 11 and a closing plate 12 for closing the opening.

  A fan casing 5b is also provided around the left fan 4b, and the right fan 4a side has a symmetrical shape with respect to the motor 6 and is configured substantially in the same structure. In this embodiment, the terminal box 9 is installed between the right fan 4a and the left fan 4b.

  The fan replacement work procedure in this embodiment is substantially the same as that in the first embodiment. That is, as shown in FIG. 12, the front closing plates 19 (see FIG. 4) and the side closing plates 12 (see FIG. 6) provided on the left and right fan casings 5a, 5b are removed, and the inlet rings 14, 15 are removed. Also remove and move sideways. After also removing the bolt 16 that fixes the motor base 13, the motor 6 and the fans 4a and 4b remain connected to each other through the motor shafts 21a and 21b, and then from the front openings 18 of the fan casings 5a and 5b. By passing the fans 4a and 4b and passing the motor shafts 21a and 21b from the side opening 11, the fans 4a and 4b and the motor 6 can be pulled out to the service space in front of the air conditioner. Other procedures are the same as those in the first embodiment.

  As described above, the present invention can be similarly applied to the both-side arrangement structure in which the fans 4 a and 4 b are attached to both sides of the motor 6, and the same effect as that of the first embodiment can be obtained. It is also possible to use the one-side arrangement structure shown in the first embodiment and the both-side arrangement structure shown in the second embodiment in combination.

  As described above, according to each embodiment of the present invention, it is possible to easily take out and replace a fan and a motor without securing an extra space in the air conditioner when removing and attaching the air blowing mechanism. It is possible to obtain an air conditioner that can

  In addition, according to each embodiment of the present invention, even if the air conditioner is reduced in size without securing extra space in the air conditioner for attaching / detaching the air blowing mechanism, the replacement for taking in and out the air blowing mechanism is performed. It is only necessary to secure the space in front of or behind the air conditioner. In other words, the replacement space is not required on the side of the air conditioner, which makes it easy to arrange a plurality of air conditioners side by side along, for example, a wall. Therefore, according to the present embodiment, there is an effect that the fan and the motor can be easily replaced while the air conditioner (indoor unit) is downsized.

  In the above-described embodiment, the case where the present invention is applied to the air conditioner in the computer room where the server is installed has been described. However, the present invention is not limited to the air conditioner in the computer room, and a plurality of housings are used. The same effect can be obtained if it is carried out where the bodies are placed side by side. Further, even when the air conditioner is installed alone, the same effect can be obtained by applying the present invention even when the service space cannot be widened around.

In the above embodiment, the inlet ring is slid sideways and removed, but if an inlet ring that can be divided is used, it can be removed without removing the inlet ring from the shaft.
Moreover, in the said Example, although the heat exchanger is provided in the upper part of the housing | casing 1 and the fan is provided in the lower part of the housing | casing 1, these are arrange | positioned upside down and the suction port is provided in the lower surface of the housing | casing 1. An air outlet may be provided on the upper surface of the housing. Furthermore, the present invention can be similarly applied to an air conditioner such as a front suction lower surface blowing and a rear suction upper surface blowing.

  In the above-described embodiment, the side with the service space as viewed from the air conditioner is defined as the front of the air conditioner. However, the present invention provides a fan casing on the service space side of the air conditioner. An opening for inserting / removing a fan (front opening in the above embodiment) and an opening for inserting / removing a shaft to / from the service space (side opening in the above embodiment) are formed. At the same time, a detachable closing plate for closing the fan loading / unloading opening and a detachable closing plate for closing the shaft loading / unloading opening may be provided.

1: casing, 2 :: suction port, 3 :: heat exchanger, 4: fan (: centrifugal fan), 5: fan casing, 6: motor (fan motor), 7: electric room, 8: machine room, 9: Terminal box, 10: Air outlet, 11: Shaft insertion / extraction opening (side opening), 12: Closing plate (side closing plate), 13: Motor base, 14: Inlet ring (left), 15: Inlet ring (Right), 16: Bolt, 17: Fastening screw, 18: Fan opening / closing opening (front opening), 19: Closing plate (front closing plate), 20: Compressor, 21: Shaft (motor shaft), 22 : Suction air, 23: blown air, 30: computer room, 31: computer, 32: indoor unit, 33: outdoor unit, 34: refrigerant pipe, 35: free access floor.

Claims (10)

In an air conditioner comprising a fan, a motor for driving the fan, a blower mechanism having a shaft for transmitting rotation of the motor to the fan, and a fan casing provided around the fan of the blower mechanism,
The fan casing is formed with a fan loading / unloading opening for loading / unloading the fan to / from the service space side of the air conditioner and a shaft loading / unloading opening for loading / unloading the shaft to / from the service space.
A detachable closing plate for closing the fan take-out opening;
An air conditioner comprising: a detachable closing plate for closing the shaft insertion / removal opening.   The air conditioner according to claim 1, wherein the air conditioner is for an information communication device installed in a computer room where a server is installed.   The air conditioner according to claim 1 or 2, wherein the air blowing mechanism and the fan casing are provided in a housing, and further, a heat exchanger is provided in the housing, and the air blowing mechanism and the fan casing are An air conditioner, wherein the air conditioner is installed at a lower part than the heat exchanger, and has a suction port at an upper part of the casing and a blower outlet at a lower part of the casing.   The air conditioner according to claim 1 or 2, wherein the air blowing mechanism and the fan casing are provided in a housing, and further, a heat exchanger is provided in the housing, and the air blowing mechanism and the fan casing are An air conditioner installed at an upper part than the heat exchanger, and having a suction port at a lower part of the casing and an outlet at an upper part of the casing.   5. The air conditioner according to claim 1, wherein the fan is configured as a double suction type, and suction ports are formed on both sides of the fan casing, and inlet rings are attached to and detached from the suction ports. An air conditioner characterized by being freely attached.   The air conditioner according to any one of claims 1 to 5, comprising a plurality of the air blowing mechanisms and a plurality of the fan casings in one housing.   6. The air conditioner according to claim 1, wherein the blower mechanism includes a double-axis motor having shafts on both sides of the motor and a plurality of fans respectively connected to the shafts on both sides of the double-axis motor. An air conditioner characterized in that a fan casing is provided around each fan.   The air conditioner according to any one of claims 1 to 7, wherein the motor and the fan are directly connected by a shaft.   The air conditioner according to any one of claims 1 to 8, wherein the service space is provided on a front side of the air conditioner, and the fan loading / unloading opening is formed on the front side of the fan casing and the shaft loading / unloading opening. The air conditioner is characterized in that the portion is formed on the front side of the side surface of the fan casing. A blower mechanism in an air conditioner comprising a fan, a motor for driving the fan, a blower mechanism having a shaft for transmitting rotation of the motor to the fan, and a fan casing provided around the fan of the blower mechanism In the removal method,
In the fan casing, a fan loading / unloading opening for loading / unloading the fan to / from the service space side of the air conditioner and a shaft loading / unloading opening for loading / unloading the shaft to / from the service space are formed in advance. The fan opening / closing opening and the shaft loading / unloading opening are each closed with a removable closing plate,
When taking out the air blowing mechanism to the service space side, after removing the closing plate closing the respective opening,
The fan constituting the air blowing mechanism is taken out from the opening for inserting and removing the shaft, and the shaft is taken out from the opening for inserting and removing the shaft to the service space side in a state where the fan and the shaft are combined. A method for removing a blower mechanism in an air conditioner.

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