JP2006220321A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of efficiently connecting a discharge opening of a drain pan and drain water piping even when the discharge opening of the drain pan is located at a depth side of an electric component box inside of a casing. <P>SOLUTION: The electric component box 30, the discharge opening of the drain pan 22 and the drain water piping 31 are successively mounted from a front panel 9 side provided with an opening S, inside of the casing 1 in an air conditioning indoor unit 50. The drain water piping 31 is constituted to come out from one of holes 4a formed on side plates 4, 4. In performing works such as replacing the drain water piping 31 by accessing the discharge opening 22a of the drain pan 22 mounted at the depth of the electric component box 30, the electric component box 30 is turned around a rotating shaft 30a to a front side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioner in which a drain pan discharge position serving as a connection position of a drain water pipe is provided on the back side of an electrical component box in a casing.

In recent years, in order to keep the indoor space in a comfortable environment, an air conditioner including a heat exchanger that processes a sensible heat load and a latent heat load existing in the indoor space has been provided.
For example, Patent Literature 1 discloses a floor-standing air conditioning indoor unit that includes a blower and a heat exchanger inside.
In this air conditioning indoor unit, the heat exchanger is arranged so as to cross the flow of air formed by the blower on the back side of the front panel, and in the state inclined downward from the near side to the far side, It is attached. When the blower starts operation, an air flow is formed, and heat exchange is performed between the air passing through the heat exchanger and the refrigerant flowing through the heat exchanger.

Moreover, in this air conditioning indoor unit, a drain pan that receives the drain water is provided at the lower part of the heat exchanger in order to discharge the drain water generated in the heat exchanger. And in order to discharge the drain water which collects in a drain pan, the hole which leads to a drain pan is formed in the side plate of the both sides of a casing, respectively. At the installation site, drain water piping is attached to one hole and a sealing lid is attached to the other hole according to the situation of the installation site, and drain water is discharged from the desired side plate side.
JP 11-304177 A (published November 5, 1999)

However, the conventional air conditioner has the following problems.
That is, in the conventional air conditioner described above, in order to be able to change the drain water discharge direction in response to the situation at the installation site, as shown in FIG. Drain water can be discharged from one of the two holes 104 a formed in the side plate 104. The bottom surface of the drain pan 122 is horizontal so that drain water can be discharged from the hole 104a on either side. For this reason, the drain water accumulated in the drain pan 122 is not smoothly discharged to the outside but stays in the drain pan 122, so that the air conditioner 100 becomes unsanitary.

  Here, in order to allow the drain water accumulated in the drain pan 122 to be smoothly discharged to the outside, it is also conceivable to incline the drain pan and allow the drain water to flow in a predetermined direction. However, in this case, the drain water can flow only in one of the left and right directions, and the drain water discharge direction cannot be changed according to the situation of the installation site of the air conditioner.

  Therefore, it is also possible to incline the bottom of the drain pan downward from the left and right sides toward the center, provide a drain water discharge port in the center of the drain pan and connect the drain water pipe to discharge the drain water to the outside. Conceivable. In this case, connect one end of the drain water pipe to the drain pan outlet, and let the other end come out from one of the holes formed in the left and right side walls. The direction in which drain water is discharged can be changed according to circumstances.

  However, when a drain pan outlet is disposed on the back side of the electrical component box (see reference numeral 130 in FIG. 7) to which many wires are connected, the electrical component box is used when the drain water pipe is replaced. Need to be removed from the casing, which is very inefficient in terms of workability. Furthermore, as described above, since many wires are connected to the removed electrical component box, it is necessary to be careful when handling the electrical component box after it is removed from the casing, which is very troublesome. It was.

  It is an object of the present invention to efficiently perform operations such as connection between the drain pan outlet and the drain water pipe even when the drain pan outlet is disposed on the back side of the electrical component box inside the casing. The object is to provide an air conditioner.

  The air conditioner according to the first invention includes a casing, an opening, a drain pan, a drain water pipe, and an electrical component box. The casing has holes formed on both side surfaces. An opening is formed in the casing for access within the casing. The drain pan is installed in the casing and has a drain water discharge port in the casing. The drain water pipe has one end connected to the drain pan outlet and the other end passed through one of the holes formed on the sides of the casing to the outside of the casing to discharge the drain water to the outside. To do. The electrical component box is disposed between the drain opening and the opening of the drain pan, and is supported so as to be rotatable about a rotation shaft.

  Here, the drain pan outlet, which is the connection destination of the drain water pipe (including the hose) to be installed at the installation site of the air conditioner, is in the casing of the air conditioner, and the hole for letting out the drain water pipe to the outside Is formed on both sides of the casing, and an air conditioner in which an electrical component box is arranged between the opening for accessing the inside of the casing and the drain pan outlet when connecting drain water piping to the outlet In the machine, the electrical component box is supported so as to rotate about the rotation axis.

  Normally, when a discharge port for discharging drain water collected in the drain pan to the outside through the drain water pipe is formed in the casing, the casing is used when connecting or replacing the drain water pipe. In many cases, the electrical component box disposed between the opening and the discharge port becomes an obstacle and the workability deteriorates. In addition, since the air conditioner is sometimes transported to the site and the installation of the drain water pipe may be switched between the left and right, the left and right positions of the drain water pipe may be replaced after the site transport.

Therefore, in the air conditioner of the present invention, the electrical component box that becomes an obstacle when connecting the drain water pipe from the opening of the casing is rotated around the rotation axis.
This enables access from the opening to the drain water pipe even if it is necessary to replace or replace the drain water pipe on the far side of the electrical component box as viewed from the opening of the casing after being transported to the site. Since it becomes easy, workability | operativity of the work regarding drain water piping can be improved significantly.

An air conditioner according to a second invention is the air conditioner according to the first invention, and the opening is formed on the front side of the casing.
Here, an opening for accessing the inside of the casing when working such as drain water piping is formed on the front side of the casing.
Thereby, at the time of work | working of drain water piping etc., since it can access from the opening formed in the front side of the casing to the connection position to the discharge port of the drain pan of drain water piping, workability | operativity can be improved further. .

An air conditioner according to a third aspect of the present invention is the air conditioner according to the first or second aspect of the present invention, wherein the bottom surface of the drain pan is inclined downward from the left and right sides toward the center portion when viewed from the front of the casing. ing.
Here, in order to smoothly drain the drain water from the drain pan that collects drain water generated in the heat exchanger or the like in the casing, the bottom surface of the drain pan is inclined from the left and right sides toward the center portion when viewed from the front of the casing. . In this case, the drain water that collects in the drain pan is smoothly discharged without staying in the drain pan, but the drain water pipe is installed at the center of the drain pan, so the front is usually covered with an electrical component box, etc. Difficult to work.

  In the air conditioner of the present invention, since the electrical component box can be rotated as described above, the bottom surface of the drain pan is inclined downward toward the center portion, and the drain water discharge port is formed in the drain pan (casing). Even in the vicinity of the central portion, operations such as replacement of drain water piping can be easily performed. Moreover, since it inclines toward the center part vicinity in which the discharge port of the drain pan is arrange | positioned, drain water can be discharged | emitted smoothly. Therefore, the drain water can be prevented from staying in the drain pan for a long time, and the inside of the casing can be kept clean. Furthermore, since the drain pan outlet is near the center of the casing, the drain water pipe can be installed in either the left or right direction.

An air conditioner according to a fourth aspect of the present invention is the air conditioner according to any one of the first to third aspects, wherein the drain water pipe is directed downward toward the outside of the casing from the connection position with the drain pan. It is attached to be inclined.
Here, when the drain water pipe is connected to the drain opening of the drain pan and installed so as to exit from one of the holes formed on both side surfaces of the casing, the drain water pipe is inclined downward toward the outside of the casing. It is attached as follows. In other words, the connection position of the drain water pipe with the drain pan is above the holes formed in the side surfaces on both sides of the casing.

Thereby, the drain water which entered drain water piping can be discharged | emitted smoothly out of a casing.
An air conditioner pertaining to a fifth invention is the air conditioner pertaining to any one of the first to fourth inventions, wherein the drain pan outlet is formed on the back side in the casing. The product box is arranged on the front side in the casing.

Here, the drain pan discharge port for connecting the drain water pipe is disposed on the back side of the casing as viewed from the opening, and the electrical component box is disposed on the front side of the casing.
Thus, even if it is the arrangement in the casing where it is difficult to work on the drain water pipe, according to the air conditioner of the present invention, the drain water pipe can be easily replaced by rotating the electrical component box. It can be carried out.

An air conditioner according to a sixth aspect of the present invention is the air conditioner according to any one of the first to fifth aspects of the present invention, further comprising a stopper that determines the limit position of the rotation range of the electrical component box. .
Here, the rotation range of the electrical component box is limited by a stopper such as a string or a metal fitting.
Thereby, since the electrical component box can be rotated to the range where it is easy to work and can be fixed at that position, it is possible to prevent the electrical component box from being damaged during the work.

An air conditioner pertaining to a seventh invention is the air conditioner pertaining to any one of the first to sixth inventions, further comprising a fixing member that fixes the electrical component box to the casing.
Here, it is fixed to the casing by a fixing member at the normal time or after completion of the operation of the drain water pipe.
Thereby, it can fix to the casing side so that an electrical component box may not rotate except when performing the work regarding drain water piping.

An air conditioner pertaining to an eighth invention is the air conditioner pertaining to any one of the first to seventh inventions, wherein the electrical component box and the drain pan outlet overlap when viewed from the front of the casing. Placed in position.
Here, the drain pan outlet for connecting the drain water pipe is disposed at a position overlapping the electrical component box in front view.

As described above, even if the positional relationship is such that it is difficult to connect or replace the drain water pipe, the work can be easily performed by rotating the electrical component box.
An air conditioner pertaining to a ninth aspect of the invention is the air conditioner pertaining to any one of the first to eighth aspects of the invention, wherein the drain pan outlet is below the upper end portion of the electrical component box.
Here, the drain opening of the drain pan for connecting the drain water pipe is disposed below the upper end portion of the electrical component box.

For this reason, it is usually difficult to work without removing the electrical component box from the front of the connection position between the drain water pipe and the drain pan outlet, but according to the air conditioner of the present invention, the electrical component box is rotated. Thus, it is possible to facilitate access to the connection position of the drain water pipe and improve the workability of the work related to the drain water pipe.
An air conditioner pertaining to a tenth invention is the air conditioner pertaining to any one of the first to ninth inventions, wherein the refrigerant communication pipe is disposed between the opening of the casing and the discharge port of the drain pan. Is further provided.

Here, in the casing, a refrigerant communication pipe connected to the heat exchanger is arranged between an opening formed by opening the open / close panel and a drain pan outlet connecting the drain water pipe.
As a result, the arrangement relating to the drain water piping is difficult to perform. However, according to the air conditioner of the present invention, the drain box is easily accessed by rotating the electrical component box. The workability of water piping can be improved.

An air conditioner according to an eleventh aspect of the invention is the air conditioner according to the tenth aspect of the invention, wherein the refrigerant communication pipe is arranged side by side with the electrical component box as viewed from the front of the casing.
Here, the refrigerant communication pipe is arranged in parallel with the electrical component box as viewed from the front of the casing.
This makes it difficult to reach from the side of the electrical component box, but according to the air conditioner of the present invention, access to the connection position of the drain water pipe can be achieved by rotating the electrical component box. It is easy to improve the workability of the work related to the drain water pipe.

An air conditioner pertaining to a twelfth aspect of the invention is the air conditioner pertaining to any one of the first to eleventh aspects of the invention, wherein the wiring connected to the electrical component box is collected near the rotating shaft. ing.
Here, various wirings extending from the electrical component box are collected near the rotation center of the electrical component box.
Thereby, even when the electrical component box is rotated during work related to the drain water piping, it is possible to avoid the occurrence of the problem of cutting or damaging the wiring.

An air conditioner pertaining to a thirteenth invention is the air conditioner pertaining to any one of the first to twelfth inventions, further comprising an open / close panel attached to the casing so as to cover the opening formed in the casing. I have.
Here, the opening for accessing the inside of the casing is covered by an openable / closable panel.

  Thereby, it is possible to perform the work by removing the open / close panel and exposing the opening only at the time of work such as drain water piping, and it is possible to avoid the occurrence of dirt inside the casing during normal use.

According to the air conditioner pertaining to the first aspect of the present invention, the workability related to the drain water piping can be significantly improved.
According to the air conditioner pertaining to the second invention, the workability can be further improved.
According to the air conditioner pertaining to the third aspect of the invention, even when the connection position of the drain water pipe to the drain pan is near the center portion, operations such as replacement of the drain water pipe can be easily performed.

According to the air conditioner pertaining to the fourth invention, the drain water that has entered the drain water pipe can be smoothly discharged out of the casing.
According to the air conditioner pertaining to the fifth aspect of the invention, the operation of replacing the drain water pipe can be easily performed by rotating the electrical component box.
According to the air conditioner pertaining to the sixth aspect of the invention, damage to the electrical component box during work can be prevented.

According to the air conditioner pertaining to the seventh aspect of the invention, it is possible to fix the electrical component box to the casing side so as not to rotate except when performing work related to the drain water pipe.
According to the air conditioner pertaining to the eighth aspect of the invention, it is possible to easily perform work by rotating the electrical component box.
According to the air conditioner pertaining to the ninth aspect of the invention, the work relating to the drain water pipe can be easily performed by rotating the electrical component box.

According to the air conditioner pertaining to the tenth aspect of the invention, workability can be improved by rotating the electrical component box.
According to the air conditioner pertaining to the eleventh aspect of the present invention, workability can be improved by rotating the electrical component box.
According to the air conditioner pertaining to the twelfth aspect of the invention, it is possible to avoid the occurrence of problems that cut or damage the wiring.

  According to the air conditioner pertaining to the thirteenth aspect of the present invention, it is possible to perform the work by removing the open / close panel and exposing the opening only during the work of the drain water pipe or the like.

An air conditioner according to an embodiment of the present invention will be described below with reference to FIGS.
[Configuration of the entire air conditioning indoor unit 50]
The air conditioning indoor unit (air conditioner) 50 according to the present embodiment is a floor-mounted air conditioning indoor unit as shown in FIGS. 1 to 3, and includes a rectangular parallelepiped casing 1 and an air passage in the casing 1. A heat exchanger 2 disposed so as to traverse and a blower 3 disposed above the heat exchanger 2 are provided. The air-conditioning indoor unit 50 is connected to an air-conditioning outdoor unit (not shown) arranged outdoors via a refrigerant pipe (such as reference numeral 40 in FIG. 3), and a compressor or the like constituting a refrigerant circuit on the air-conditioning outdoor unit side. Is housed.

  The casing 1 includes a pair of side plates 4, 4, a front plate 5 attached between the front ends of the side plates 4, 4, a back plate 6 attached between the rear ends of the side plates 4, 4, a top plate 7 and a bottom plate. 8. Further, glass wool covered with an aluminum sheet is installed as a heat insulating material on the side plates 4 and 4, the back plate 6, and the inner surface of the maintenance panel 10 described later. Since such a heat insulating material hardly absorbs water and has excellent wear resistance, the inside of the air conditioning indoor unit 50 can be easily cleaned by a method such as wiping with a rag after watering. It should be noted that the front side and the back side described below mean the front plate 5 side and the back plate 6 side described above, respectively.

  As shown in FIG. 2, the heat exchanger 2 is disposed on the back side of the maintenance panel 10 described later and across the air flow formed by the blower 3. Moreover, the heat exchanger 2 is attached to the inside of the casing 1 in a state in which the heat exchanger 2 is inclined downward from the near side of the opening that appears when the maintenance panel 10 is removed. The lower frame 13 for supporting the heat exchanger 2 is locked to locking portions 15, 15 formed at both rear ends of the side plates 4, 4. On the other hand, the upper frame 14 is screwed in a state of being locked to a mounting plate 16 formed in the vicinity of both front end edges of the side plates 4 and 4.

As shown in FIGS. 1 to 3, the blower 3 is attached to the upper portion of the air conditioning indoor unit 50, and includes a scroll type fan casing 17, a fan motor 18, a belt 19, a pulley 21 (drive unit), and an illustration. It has a fan rotor (sirocco fan) that does not.
The fan casing 17 has an air outlet 17a that blows air in the direction of the top plate 7 (duct 12) and an air inlet 17b that sucks air from both sides in the direction of the rotation axis 20a of the fan rotor. The blower 3 transmits the rotational driving force of the fan motor 18 to the rotary shaft 20a via the pulley 21 and the belt 19, rotates the fan rotor accommodated in the fan casing 17, and sucks air from the intake port 17b. Is discharged from the outlet 17a.

  The pair of side plates 4 and 4 form an outer shell on the side surface of the air conditioning indoor unit 50 and support the fan motor 18 and the rotating shaft 20a of the blower 3 from both sides. Moreover, the side plates 4 and 4 have the latching | locking part 15 formed by cutting and raising each rear-end part edge inside. Further, the side plates 4 and 4 are formed with holes 4a for passing the drain water pipe 31 and holes 4b for passing the refrigerant pipe 40 in the lower part. Thus, by forming the holes 4a and 4b in the side plates 4 and 4 on both sides, the installation direction of the drain water pipe 31 and the refrigerant pipe 40 can be set on the installation site depending on the installation environment at the installation site. Can also be changed.

The front plate 5 is formed with an air suction port 10a at an intermediate portion in the vertical direction, and a maintenance panel 10 having a lower end portion as a rotation center is provided to be openable and closable so as to cover the air suction port 10a. Yes. The maintenance panel 10 is opened when performing maintenance or the like, and cleans the heat exchanger 2 or the like.
The back plate 6 normally forms an outer shell that is arranged to be on the wall side when the air conditioning indoor unit 50 is installed.

An air outlet 11 is formed in the top plate 7. The air outlet 11 is connected to a duct 12 that guides conditioned air to blow out from a desired location.
On the bottom plate 8, a solenoid valve (not shown) attached to a refrigerant pipe 40 connected to a heat exchanger, an electrical component box 30 containing various electrical components, and the like are placed in a space below the drain pan 22. The configuration of the electrical component box 30 provided between the bottom plate 8 and the back side of the drain pan 22 will be described in detail later.

Further, as shown in FIG. 2, a drain pan 22 for receiving drain water falling from the heat exchanger 2 is disposed below the heat exchanger 2.
[Configuration of Drain Pan 22]
As shown in FIG. 1 and FIG. 2, the drain pan 22 provided in the air conditioning indoor unit 50 of the present embodiment is inclined so that the front side is positioned higher and the back side is positioned lower, and the side plate 4 , 4 are inclined downward from the end portions on both sides to the vicinity of the central portion. Thereby, the drain water which fell to the drain pan 22 can be collected in the back | inner side (rear side of the casing 1) and the center part of the drain pan 22. FIG.

  Further, the drain pan 22 has a discharge port 22 a formed in the vicinity of the joint portion with the back plate 6. The discharge port 22a is formed at the lowest position in the drain pan 22 by the inclination described above, and is configured such that drain water on the drain pan 22 gathers toward the discharge port 22a. Further, as shown in FIG. 1, the discharge port 22 a is located below the upper end portion of the electrical component box 30 in the vertical direction. Furthermore, the discharge port 22a is disposed at a position overlapping the electrical component box 30 in a front view. Therefore, in this state, the electrical component box 30 is in the way, and the arrangement relating to the drain water pipe 31 is difficult to perform.

  The drain pan 22 is disposed so as to partition the middle space in the casing 1 in which the heat exchanger 2 is disposed and the lower space in which the electrical component box 30 and the like are disposed. As a result, even when the maintenance panel 10 is opened and the heat exchanger 2 is washed with water, the heat exchanger 2 can be washed without applying water to the electrical component box 30, the refrigerant pipe 40, etc. The water falling on the drain pan 22 when washing the exchanger 2 can be efficiently guided to the position of the discharge port 22a.

[Configuration of drain water pipe 31]
The air conditioning indoor unit 50 of the present embodiment has a drain water pipe 31 connected to the discharge port 22a of the drain pan 22 and fixed with a metal band in order to discharge drain water to the outside.
The drain water pipe 31 is a hose-like member, and as shown in FIG. 4, the drain water pipe 31 exits from a hole 4a formed in the left side plate 4 in a front view, and is discharged from the drain pan 22 through the discharge port 22a. Drain water is discharged out of the air conditioning indoor unit 50 through the hole 4a of the side plate 4 while bending at an angle close to a right angle.

  The drain water pipe 31 is attached as follows. First, the drain water pipe 31 is passed from the outside of the hole 4 a formed in the side plate 4 on the drain water discharge side toward the inside of the casing 1. Then, one end of the drain water pipe 31 is connected to the discharge port 22a of the drain pan 22, and is tied and fixed with a metal band. Thereby, the attachment to the air-conditioning indoor unit 50 of the drain water piping 31 is completed. For this reason, when it is desired to change the direction of the drain water pipe 31 to the direction opposite to the direction installed at the time of shipment at the installation site from the installation conditions at the site, etc., the drain pan 22 at the back of the electrical component box 30 is discharged. It is necessary to loosen the metal band by putting a hand toward the outlet 22a.

  The drain port 22a of the drain pan 22 to which the drain water pipe 31 is connected is at a high position with respect to the hole 4a of the side plate 4 into which the drain water pipe 31 is inserted. For this reason, as shown in FIG. 4, the drain water pipe 31 is attached in a state inclined downward from the connection position with the discharge port 22 a of the drain pan 22 to the hole 4 a of the side plate 4. Thereby, the drain water which flowed in from the discharge port 22a can be discharged | emitted efficiently outside.

[Configuration of electrical component box 30]
In the present embodiment, as shown in FIGS. 1 and 2, the electrical component box 30 that houses various electrical components is disposed in the lower space in the casing 1 of the air conditioning indoor unit 50.
As shown in FIG. 2, the electrical component box 30 is disposed so as to cover a portion on the front panel 9 side in the casing 1 and on the front side of the discharge port 22 a of the drain pan 22. And as shown in FIG. 1, the refrigerant | coolant piping 40 is arrange | positioned at the right side of the electrical component box 30 in front view. For this reason, in this state, the opening S formed by removing the front panel 9 is closed by the electrical component box 30 and the refrigerant pipe 40, and the discharge port 22 a of the drain pan 22 can be accessed from the opening S. It is difficult.

Further, as shown in FIGS. 5A and 5B, the electrical component box 30 rotates around a support shaft (rotating shaft) 30a attached near the lower end. The support shaft 30a is a metal rod-shaped member that is a part of a set of metal fittings that support the electrical component box 30 at the lower end portions on both sides.
Further, as shown in FIG. 1, the plurality of wirings 30c connected to the electrical component box 30 are collected on the right side of the electrical component box 30 in the front view and in the vicinity of the support shaft 30a serving as the rotation center. ing. Therefore, as shown in FIG. 5B, even when the electrical component box 30 is rotated, it is possible to avoid the occurrence of problems such as the wiring 30c being excessively pulled and the wiring being disconnected. In FIG. 1, for convenience of explanation, the wiring 30c is shown as a single line, but it is assumed that a plurality of wirings are actually combined.

  Furthermore, the electrical component box 30 is fixed to the casing 1 by screws (fixing members) 30d as shown in FIGS. 1 and 5A at normal times including during operation. For this reason, when rotating the electrical component box 30, after removing the screw 30d, the electrical component box 30 is rotated around the support shaft 30a. This prevents the electrical component box 30 from rotating except when necessary.

  The rotation range of the electrical component box 30 is restricted by a wire (stopper) 30 b having one end connected to the upper side of the electrical component box 30 and the other end connected to the inside of the side plate 4 of the casing 1. The length of the wire 30b is determined so that it stops at the position where the electrical component box 30 is rotated by approximately 90 degrees. For this reason, when replacing the drain water pipe 31 at the back of the electrical component box 30 inside the casing 1, the electrical component box 30 is rotated by approximately 90 degrees, and the opening S having a sufficient width is provided. It is possible to work with ensuring. In addition, by restricting the rotation range by the wire 30b, it is possible to avoid the occurrence of a problem that the electrical component box 30 is excessively rotated and damaged during work such as replacement of the drain water pipe 31.

[Features of air conditioning indoor unit 50]
(1)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIGS. 1 and 2, the electrical component box 30, the discharge port 22a of the drain pan 22 and the drain water are formed inside the casing 1 from the front panel 9 side where the opening S is formed. A pipe 31 is provided. Further, the drain water pipe 31 is configured to be able to go out from one of the holes 4 a formed in the side plates 4, 4. And when accessing the discharge port 22a of the drain pan 22 in the back of the electrical component box 30 and performing operations such as replacement of the drain water pipe 31, as shown in FIG. It is rotated to the near side about the support shaft 30a.

  Thus, when the drain water pipe 31 is transported to the installation site, the direction of the drain water pipe 31 is attached in the opposite direction in view of the situation on the site, and the work is performed even when the drain water pipe 31 needs to be replaced on the installation site. Therefore, a necessary space can be secured. Therefore, the operation of the drain water pipe 31 can be easily performed. That is, a work space is formed by rotating the electrical component box 30 arranged so as to cover the front portion of the discharge port 22a connecting the drain water pipe 31 to the drain pan 22 around the support shaft 30a, and the front panel 9 Can be easily accessed from the opening S formed by removing the drain port 22a to which the drain water pipe 31 is connected. For this reason, compared with the conventional air-conditioning indoor unit in which the electrical component box 30 cannot rotate, the work efficiency of the operation | work which changes the direction of the drain water piping 31 can be improved significantly.

(2)
In the air conditioning indoor unit 50 of the present embodiment, the opening S that appears when the front panel 9 is removed is formed on the front side of the air conditioning indoor unit 50 (casing 1) as shown in FIG.
Thereby, when performing the replacement work etc. of the drain water piping 31, it can access to the position which connects the drain water piping 31 from the front side of the air-conditioning indoor unit 50. FIG. Therefore, workability can be improved as compared with work from the side or back side of the air conditioning indoor unit 50.

(3)
In the air conditioning indoor unit 50 of the present embodiment, the drain pan 22 that collects drain water is inclined downward from the side plate 4 side on both sides toward the center (see the dotted line portion of reference numeral 22 in FIG. 1).
Thereby, the drain water collected on the drain pan 22 can be smoothly guided to the discharge port 22 a formed near the center of the drain pan 22. Therefore, since the drain water does not stay on the drain pan 22 for a long time, the inside of the air conditioning indoor unit 50 can always be kept clean.

Even when the drain water discharge port 22a formed in the drain pan 22 is located at the center of the casing 1 and on the back side of the electrical component box 30 or the like, according to the air conditioning indoor unit 50 of the present embodiment, Since the space in front of the discharge port 22a can be opened by rotating the product box 30, workability is not deteriorated.
(4)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 4, the drain water pipe 31 is inclined downward toward the hole 4 a of the side plate 4 connected to the outside from the discharge port 22 a that is the connection position with the drain pan 22. It is attached.

Thereby, the drain water which flows in from the discharge port 22a can be discharged | emitted smoothly outside.
(5)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 2, the discharge port 22 a of the drain pan 22 is disposed on the back side of the casing 1, and the electrical component box 30 is disposed on the most front side of the casing 1.

  For this reason, normally, when work such as replacement of the drain water pipe 31 is performed, the electrical component box 30 gets in the way and deteriorates workability, but in this embodiment, the electrical component box 30 is Since it can be rotated to the near side about the support shaft 30a, workability relating to the drain water pipe 31 can be improved without removing the electrical component box 30 from the casing 1.

(6)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 5 (b), the rotation range of the electrical component box 30 that can be rotated around the support shaft 30a is arranged at one end on the upper side of the electrical component box. The other end is regulated by a wire 30 b connected to the side plate 4.
As a result, even when the electrical component box 30 is rotated when the drain water pipe 31 is replaced, the electrical component box 30 is excessively rotated during the operation by restricting the range of rotation. Occurrence of problems such as breakage of the electronic components and breakage of electronic components can be avoided.

(7)
The air conditioning indoor unit 50 according to the present embodiment has a screw 30d for fixing the electrical component box 30 to the casing 1 as shown in FIGS.
Thereby, it is possible to fix the electrical component box 30 to the casing 1 side so that the electrical component box 30 does not rotate except when it is necessary to rotate the electrical component box 30 during the operation of replacing the drain water pipe 31.

(8)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 1, the discharge port 22 a that connects the drain water pipe 31, and the electrical component box 30 that covers most of the opening S that appears when the front panel 9 is opened, Are arranged so as to overlap in front view.
Accordingly, it is usually necessary to remove the electrical component box 30 from the casing 1 and perform the operation of the drain water pipe 31. In this embodiment, however, the electrical component box 30 is rotated as shown in FIG. Therefore, even with such an arrangement, workability of work such as replacement of the drain water pipe 31 can be greatly improved.

(9)
In the air conditioning indoor unit 50 of this embodiment, as shown in FIG. 1 and FIG. 5 and the like, the upper end portion of the electrical component box 30 is above the position of the discharge port 22a connecting the drain water pipe 31. That is, when performing work such as replacement of the drain water pipe 31, it is difficult to place the hand from above the electrical component box 30.

In this embodiment, even if it is the arrangement | positioning by which the deterioration of such workability is anticipated, the deterioration of workability, such as the operation | work which replaces the drain water piping 31 by rotation of the electrical component box 30, can be avoided.
(10)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 1, the refrigerant pipe 40 is also arranged in addition to the electrical component box 30 between the opening S that appears when the front panel 9 is opened and the discharge port 22 a of the drain pan 22. Has been.

  Thereby, the width of the electrical component box 30 is smaller than the width of the air conditioning indoor unit 50, and it seems that the drain water pipe 31 can be operated by putting a hand from the space next to the electrical component box 30. A refrigerant pipe 40 is disposed in an empty space in the width direction in the indoor unit 50. For this reason, it is necessary to remove the electrical component box 30 during the operation of the drain water pipe 31, but in this embodiment, as shown in FIG. 5B, the electrical component box 30 is centered on the support shaft 30a. It can be rotated. Therefore, even if the inside of the casing 1 is difficult to work in this way, the workability can be greatly improved without removing the electrical component box 30 from the casing 1.

(11)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 1, the refrigerant pipe 40 is arranged in the casing 1 so as to be arranged next to the electrical component box 30.
Thereby, like the above, although the arrangement | positioning regarding the drain water piping 31 is difficult to do in the inside of the casing 1, workability | operativity can be improved significantly by rotation of the electrical component box 30. FIG.

(12)
In the air conditioning indoor unit 50 of the present embodiment, a plurality of wires connected to the electrical component box 30 that is rotated when performing work related to the drain water pipe 31 are collected in the vicinity of the support shaft 30a serving as the rotation center. (See the dotted line indicated by reference numeral 30c in FIG. 1).
Thereby, even when the electrical component box 30 is rotated, operations such as replacement of the drain water pipe 31 can be performed without cutting or damaging many connected wires.

(13)
In the air conditioning indoor unit 50 of the present embodiment, as shown in FIG. 2, an opening formed in the casing 1 for accessing the discharge port 22 a of the drain pan 22 when performing work such as replacement of the drain water pipe 31. S is covered by a front panel 9.
Thereby, since the opening S can be covered by the front panel 9 except when the drain water pipe 31 is replaced, the electrical component box 30 and the refrigerant pipe 40 near the opening S are prevented from being stained or damaged. can do.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above-described embodiment, an example in which the rotation center of the electrical component box 30 is located below the electrical component box 30 has been described. However, the present invention is not limited to this.

For example, the electrical component box 30 may be at either one of the left and right ends or at the upper end. Furthermore, when the electrical component box 30 is divided into two parts, only one electrical component box may be rotated.
In any of the above cases, by rotating the electrical component box, it is possible to easily access to the connection position of the drain water pipe, and to obtain the same effect as described above that improves workability.

(B)
In the said embodiment, the connection position of the drain water piping 31, the electrical component box 30, etc. were mentioned and demonstrated by giving the example provided in the space of the lowest stage in the casing 1. FIG. However, the present invention is not limited to this.
For example, even when it is arranged in a middle space in the casing 1, the same effect as described above can be obtained.

(C)
In the above embodiment, in order to regulate the rotation range of the electrical component box 30 that rotates around the support shaft 30a when the drain water pipe 31 is rotated, one end is the side plate 4 and the other end is the electrical component. The example using the wire 30b connected to the product box 30 has been described. However, the present invention is not limited to this.

For example, a string or a chain can be used instead of the wire 30b. Furthermore, a metal fitting or the like that restricts the rotation range of the electrical component box 30 can be used together with the support shaft 30 a that supports the electrical component box 30.
(D)
In the said embodiment, the opening S for accessing with respect to the drain water piping 31 was given and demonstrated with the example formed in the front side of the casing 1. As shown in FIG. However, the present invention is not limited to this.

For example, an opening may be formed on the side plate 4 side, and the drain water pipe 31 or the like may be operated by accessing from the opening.
However, it is more preferable that the opening is formed on the front side of the casing 1 as in the above-described embodiment because it is accessible regardless of the installation status of the air conditioning indoor unit.
(E)
In the said embodiment, the example which used the hose-shaped member as the drain water piping 31 was given and demonstrated. However, the present invention is not limited to the above embodiment with respect to the material of the drain water pipe 31.

For example, in addition to a hose-like member, a resin or metal pipe can be used.
(F)
In the said embodiment, the upper part of the air-conditioning indoor unit 50 was given and demonstrated as the example connected to the duct 12. FIG. However, the present invention is not limited to this.

  For example, as shown in FIG. 6, it may be an air-conditioning indoor unit that supplies air conditioned air to the room through a plenum 51 attached to the upper part.

  The air conditioner of the present invention has an effect that it is possible to easily access the drain opening of the drain pan disposed inside the casing and improve workability of work such as replacement of the drain water pipe. The present invention can be widely applied to various apparatuses that require work on various members arranged on the back side of a box or the like.

The front view which shows the structure inside the air-conditioning indoor unit which concerns on one Embodiment of this invention. The side view which shows the structure inside the air-conditioning indoor unit of FIG. The exploded view which shows the structure of the air-conditioning indoor unit of FIG. The front view which shows the structure of the back | inner side rather than the electrical component box in the lower space in the casing of the air-conditioning indoor unit of FIG. (A) is a front view which shows the structure of the electrical component box which the air-conditioning indoor unit of FIG. 1 has. (B) is the side view. The external view which shows the air-conditioning indoor unit which concerns on other embodiment of this invention. The front view which shows the structure inside the conventional air-conditioning indoor unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 2 Heat exchanger 3 Blower 4 Side plate 5 Front plate 6 Rear plate 7 Top plate 8 Bottom plate 9 Front panel 10 Maintenance panel 11 Air outlet 12 Duct 13 Lower frame 14 Upper frame 17 Fan casing 21 Pulley 22 Drain pan 22a Discharge port 24 Hole 30 Electrical component box 30a Support shaft (rotating shaft)
30b Wire (stopper)
30c Wiring 30d Screw (fixing member)
31 Drain water piping 40 Refrigerant piping (refrigerant communication piping)
50 Air conditioning indoor unit (air conditioner)

Claims (13)

A casing (1) in which holes (24) are respectively formed on both side surfaces;
An opening (S) formed in the casing (1) for accessing the casing (1);
A drain pan (22) installed in the casing (1) and having a drain water outlet (22a) in the casing (1);
One end portion is connected to the discharge port (22a) of the drain pan (22), and the other end portion is connected to the casing (1) from one of the holes (24) formed on both side surfaces of the casing (1). ) Drain water pipe (31) that is passed to the outside and drains the drain water to the outside,
The electrical component box (30) disposed between the discharge port (22a) of the drain pan (22) and the opening (24) and supported so as to be rotatable about a rotation shaft (30a). )When,
An air conditioner (50) comprising: The opening (S) is formed on the front side of the casing (1).
The air conditioner (50) according to claim 1. The bottom surface of the drain pan (22) is inclined downward from the left and right sides toward the central portion when viewed from the front of the casing (1).
The air conditioner (50) according to claim 1 or 2. The drain water pipe (31) is attached so as to incline downward toward the outside of the casing (1) from the connection position with the drain pan (22).
The air conditioner (50) according to any one of claims 1 to 3. The drain opening (22a) of the drain pan (22) is formed on the back side in the casing (1),
The electrical component box (30) is disposed on the front side in the casing (1).
The air conditioner (50) according to any one of claims 1 to 4. A stopper (30b) for determining a limit position of a rotation range of the electrical component box (30);
The air conditioner (50) according to any one of claims 1 to 5. A fixing member (30d) for fixing the electrical component box (30) to the casing (1);
The air conditioner (50) according to any one of claims 1 to 6. The electrical component box (30) and the drain port (22a) of the drain pan (22) are arranged at positions overlapping each other when viewed from the front of the casing (1).
The air conditioner (50) according to any one of claims 1 to 7. The drain opening (22a) of the drain pan (22) is below the upper end portion of the electrical component box (30).
The air conditioner (50) according to any one of claims 1 to 8. A refrigerant communication pipe (40) disposed between the opening (S) of the casing (1) and the discharge port (22a) of the drain pan (22);
The air conditioner (50) according to any one of claims 1 to 9. The refrigerant communication pipe (40) is arranged side by side with the electrical component box (30) when viewed from the front of the casing (1).
The air conditioner (50) according to claim 10. The wiring (30c) connected to the electrical component box (30) is collected in the vicinity of the rotating shaft (30a).
The air conditioner (50) according to any one of claims 1 to 11. An open / close panel (9) attached to the casing (1) so as to cover the opening (S) formed in the casing (1);
The air conditioner (50) according to any one of claims 1 to 12.

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