JP2013019631A - Air-conditioning indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning indoor unit capable of easily changing horizontal inclination of a drain pan according to a condition in an air-coditioned room and connecting an exhaust pipe from one of right and left sides.SOLUTION: The air-conditioning indoor unit includes a body casing 30 having an air path formed therein, a heat exchanger 10 installed in the air path of the body casing 30 to exchange heat with air, and a drain pan 1 installed in the lower position of the heat exchanger 10 in the air path to receive drain water from the heat exchanger 10. The air-conditioning indoor unit includes drain exhaust ports formed at right and left ends of the drain pan 1, a screw 15 for supporting the drain pan 1 being horizontally inclined, and fixing means for fixing the drain pan 1 inclined left or right being supported by the screw 15 in its inclined state.

Description

  TECHNICAL FIELD The present invention relates to an indoor unit for air conditioning that is installed in an air-conditioned room and performs cooling and heating, and for an air conditioner provided with a drain pan for receiving water generated by a mounted heat exchanger or the like and draining it outside the apparatus. It relates to indoor units.

Conventionally, as this type of indoor unit for air conditioning, for example, the one described in Patent Document 1 below is known. The indoor unit for air conditioning described in this document includes a main body casing in which an air passage is formed, a heat exchanger that is disposed in the air passage of the main body casing and performs heat exchange with air, and an air passage in the air passage. A drain pan disposed at a lower position of the heat exchanger to receive drain water from the heat exchanger. In such an indoor unit for air conditioning, in order to drain the drain water generated in the main body casing to the outside, the drain pan is provided with a gradient to ensure the flow of water. Moreover, it is common that the connection piping connected to the drain pan is taken out from the left and right side surfaces of the main body casing installed in the air-conditioned room.

At present, the procedure for inclining the drain pan of the air-conditioning indoor unit to the left and right is as follows. (2) Remove the screw on the side inclined downward from the left and right screws fixing the drain pan to the main casing. (3) Push down the drain pan about 10 mm downward on the side where the screw is removed. (4) Since a fixing pilot hole is also provided 10 mm below, the removed screw is reattached to the fixing pilot hole. (5) Reattach the suction guard to the air suction port.
The five operations (1) to (5) are performed.

JP 2010-117105 A

As described above, the conventional indoor unit for air conditioning has a problem that workability is poor because the operations (1) to (5) need to be performed. In addition, if the slope is forgotten, the drain pan becomes horizontal, so there is a risk of poor drainage, and there is a risk that slime may be generated in the reservoir portion in the drain pan.

The present invention has been made to solve the above-described problems, and can change the horizontal inclination of the drain pan according to the situation in the air-conditioned room by a simple operation, and drains water from either the left or right side. An object of the present invention is to provide an indoor unit for air conditioning capable of pipe connection.

In order to achieve the above object, an indoor unit for air conditioning according to the present invention has a main body casing in which a ventilation path is formed, and heat that is arranged in the ventilation path of the main body casing and performs heat exchange between air. An air conditioner indoor unit comprising an exchanger and a drain pan disposed at a lower position of the heat exchanger in the ventilation path and receiving drain water from the heat exchanger, and formed at left and right ends of the drain pan, respectively. A drain discharge port portion, a support means for supporting the drain pan so as to be tiltable in the left-right direction, and a fixing means for fixing the drain pan supported by being tilted in either the left or right direction by the support means in the tilted state. It is characterized by that.

The indoor unit for air conditioning according to the present invention includes a drain discharge port portion at the left and right end portions of the drain pan and a support means for supporting the drain pan so as to be tiltable in the left-right direction. Can be tilted in any direction. And the fixing means fixes the drain pan supported by being inclined in either the left or right direction in the inclined state. Therefore, the workability of drain pipe connection is greatly improved. In addition, since the drain pan is always tilted to the left and right, it is possible to prevent the drain pan from becoming horizontal, and to prevent defective drainage and generation of slime in the reservoir.

FIG. 3 is a front view of the air conditioning indoor unit according to the embodiment of the present invention with the front lower panel removed. It is a left view in the indoor unit for an air conditioning of FIG. It is a right view in the indoor unit for an air conditioning of FIG. It is a front side perspective view in the indoor unit for air conditioning of FIG. It is a back side perspective view in the indoor unit for air conditioning of FIG. It is a perspective view of the drain pan used for the indoor unit for air conditioning in embodiment of this invention. It is an expansion perspective view of the drain cap used for the said drain pan. It is an AA arrow directional cross-sectional view in FIG. It is a partial enlarged front view which shows the state where the left downward inclination is given to the drain pan of the said indoor unit for an air conditioning. It is a partial expansion perspective view which shows the aspect which attaches an attachment panel to a right side panel in a drain pan lower left state. It is the elements on larger scale which show the inside of the circle | round | yen B in the indoor unit for air conditioning of FIG. It is the elements on larger scale which show the inside of the circle C in the indoor unit for an air conditioning of FIG.

Embodiment 1 FIG.
FIGS. 1-8 shows the whole structure or each part structure of the indoor unit for air conditioning in embodiment of this invention.
In each figure, the indoor unit for air conditioning which concerns on this embodiment is provided with the main body casing 30 formed in rectangular box shape, for example. The main body casing 30 includes a left side panel 2, a right side panel 3, a rear lower panel 12, a rear middle panel 13, and a rear upper panel 14 connected to the rear portions of the left side panel 2 and the right side panel 3. The top panel 11 supported on the upper part of each of the left side panel 2, the right side panel 3, and the rear upper panel 14, the front upper panel 9, and the front lower panel disposed below the front upper panel 9 (not shown) ) And the base frame 5. Left side panel 2, right side panel 3, rear lower panel 12, rear middle panel 13, rear upper panel 14, front upper panel 9, front lower panel (not shown), top panel 11, and bottom frame 5 Are fixed with screws or the like with appropriate support material or horizontal frame material interposed between them.

The inside of the main body casing 30 is an air passage that communicates the air suction port 6 at the lower back of the casing and the air outlet 31 of the top panel 11. In this ventilation path, the heat exchanger 10, which is a component of a general-purpose air conditioning refrigerant circuit (not shown), is installed in an inclined arrangement with the front side raised. With this heat exchanger 10 as a boundary, the ventilation path in the main body casing 30 is partitioned into a primary space on the air inlet side and a secondary space on the air outlet side. A blower such as a sirocco fan and a motor (both not shown) are disposed on the upper part of the ventilation passage of the main casing 30, for example, the lower surface of the top panel 11. The blower described above sucks indoor air from the air inlet 6 and passes the heat exchanger 10, and blows out air conditioned by the heat exchanger 10 from the air outlet 31 into the room. A drain pan 1 that receives the drain water that has condensed and dropped on the surface of the heat exchanger 10 is disposed in the ventilation passage of the main body casing 30 below the heat exchanger 10. This drain pan 1 has a substantially rectangular bottom surface portion 1C in plan view, a front wall 1D, a left side wall 1A, a right side wall 1B, and a back wall 1E that are erected on the four sides around the bottom surface portion 1C. Is formed.

In this indoor unit for air conditioning, a discharge port 22 (drain discharge port portion) formed to protrude outward on the left side wall 1A of the drain pan 1 and a discharge port 23 (drain discharge port) formed to protrude outward. Part). The discharge ports 22 and 23 are hermetically sealed by screwing a drain cap 7 (drain discharge port portion) to a female screw portion formed on the inner peripheral surface thereof. Thus, the drain cap 7 attached to the drain pan 1 is a cylindrical plug, and protrudes out of the machine from the vertically long hole 20 of the right side panel 2 of the main body casing 30. Also, two support means 28A, 28B that support the drain pan 1 so as to be tiltable in the left-right direction, and the drain pan 1 supported by tilting in either the left-right direction by these support means 28A, 28B are fixed to the tilted state. A fixing means 29 is provided. By these two support means 28A, 28B, the drain pan 1 can swing left and right like a seesaw.

The support means 28 </ b> A includes a screw (pivot member) 15 that supports the drain pan 1 so as to be rotatable about a substantially horizontal axis H <b> 1 with respect to the main body casing 30, and a column 4 that is erected on the front left and right center of the bottom frame 5. And a female screw hole formed on the front wall 1D of the drain pan 1 for screwing the screw 15 passed through the pivot hole 27. 33. Similarly, the support means 28B is formed on a screw (pivot member) 16 that supports the drain pan 1 so as to be rotatable about a substantially horizontal axis H1, and on the upper left and right central portions of the rear lower panel 12, and rotates the screw 16. A pivot support hole 32 that is freely supported and a female screw hole 34 formed in the back wall 1E of the drain pan 1 for screwing the screw 16 passed through the pivot support hole 32 are configured.

The fixing means 29 is formed on each of the right side panel 2 and the left side panel 3 of the main body casing 30, and allows the drain cap 7 attached to the left and right discharge ports 22 and 23 of the drain pan 1 to freely move up and down. A vertical hole 21, an attachment panel 8 that is detachably attached to the right side panel 2 or the left side panel 3 in a state of covering the vertical hole 21, and a vertical hole 20 of the right side panel 2 that is formed in the attachment panel 8. Alternatively, it includes a locking hole 24 that locks the drain cap 7 of the discharge ports 22 and 23 protruding from the vertically long hole 21 of the left side panel 3. The position of the locking hole 24 in the attachment panel 8 is set to a position where the drain cap 7 attached to the discharge port 22 or the discharge port 23 on the upward side of the inclined drain pan 1 can be locked. In the attachment panel 8, the upper and lower female screw holes 18 and 18 of the right side panel 2 or the upper and lower two female screw holes 19 and 19 of the left side panel 3 are screwed at the upper and lower positions of the locking hole 24. For this purpose, a through hole 25 and a through hole 26 through which the screw 17 is passed are formed.

  Sealing elastic members 36 and 36 are attached to the outer surface of the left side wall 1A and the outer surface of the right side wall 1B of the drain pan 1 with an adhesive or the like. These sealing elastic members 36, 36 are provided between the left side wall 1A of the drain pan 1 and the left side panel 3 of the main body casing 30, and between the right side wall 1B of the drain pan 1 and the right side panel 2 of the main body casing 30. The water stop structure 37 which seals each is comprised. That is, between the drain pan and the side panel so that the compression ratio of the elastic member 36 for sealing is 50% or more by using the force of compression between the inner surface of the right side panel 2 and the inner surface of the left side panel 3 of the main body casing 30. By setting the gap size, an airtight structure is brought about.

In this indoor unit for air conditioning, as shown in FIGS. 9 to 12, the left drain pipe connection is initially set as a default at the time of assembly, and the drain pan 1 is inclined to the left by an angle θ relative to the horizontal axis H2. The drain cap 7 is attached to the outlet 23 on the right side of the drain pan 1. Thereby, it has an initial structure in which drain water is drained only from the left side of the main body casing 30 placed in the air-conditioned room. That is, with the protruding drain cap 7 fitted in the locking hole 24, the attachment panel 8 is applied to the right side panel 2 of the main body casing 30 and is screwed into the female screw holes 18, 18. By being fixed by 17, the slope of the drain pan 1 inevitably falls to the left. At the same time, the drain pan 1 in the inclined posture is fixed as it is, so that the drain pan 1 is prevented from being glazed at the time of shipment.

  When performing drain drain pipe connection work in the air-conditioned room, when the left drain pipe connection is used, the drain pipe is connected to the left outlet 22 of the drain pan 1 as it is. As a result, the connection work is completed in one step, so that the construction can be performed very easily.

On the other hand, when performing drain drain pipe connection work, when it is desired to connect the right drain pipe, the drain cap 7 removed from the right outlet port 23 of the drain pan 1 after removing the attachment panel 8 attached to the right side panel 2. The left outlet 22 is sealed. Then, the drain pan 1 is rotated around the screws 15 and 16 to be lowered to the right, and the drain cap 7 protruding from the vertically long hole 21 of the left side panel 3 is inserted into the locking hole 24 of the attachment panel 8. Thereafter, the screws 17 and 17 are screwed into the female screw holes 19 and 19 and the attachment panel 8 is attached to the left side panel 3 in the same procedure as in the case of the downward slope shown in FIGS. The drain pan 1 can be fixed to the right-down state. After carrying out the above-described operation in this way, the drain drain connection construction for the right connection is completed by connecting the drain pipe to the right outlet 23 of the drain pan 1.

As described above, this indoor unit for air conditioning includes the drain ports 22 and 23 at the left and right ends of the drain pan, the drain cap 7 for sealing them, and the support means 28A and 28B. The drain pan 1 can be tilted in either the left or right direction like a seesaw. And the fixing means 29 fixes the drain pan 1 inclined and supported in either the right or left direction to the inclination state. Therefore, the workability of connecting the drain pipe to the left side or the right side can be greatly improved.

The support means 28A and 28B are made of screws 15 and 16 that support the drain pan 1 so as to be rotatable about the substantially horizontal axis H1 with respect to the main body casing 30, and therefore are extremely simple and inexpensive to manufacture. Can do. And the fixing means 29 which latches the drain cap 7 in the upper position of the inclined drain pan 1 is detachably attached to the vertically elongated holes 20 and 21 formed in the left and right side panels 2 and 3 and the side panels 2 and 3. Since it is comprised from the attachment panel 8 to be attached and the locking hole 24 which is formed in the attachment panel 8 and locks the drain cap 7, it is possible to realize the fixing means with a simple and inexpensive configuration.

  In the above embodiment, the example in which the elastic members 36 and 36 for sealing are pasted on the outer surface of the left side wall 1A and the outer surface of the right side wall 1B of the drain pan 1 is shown, but the air conditioning indoor unit of the present invention is limited thereto. It is not what is done. For example, an elastic member for sealing is attached to the inner surface of the right side panel 2 and the inner surface of the left side panel 3 of the main body casing 30, and thereby, between the left side wall 1 </ b> A of the drain pan 1 and the left side panel 3 and the drain pan. It is also possible to have a water stop structure that seals between the right side wall 1B and the right side panel 2.

1 Drain pan 1A Left side wall 1B Right side wall 2 Right side panel 3 Left side panel 4 Post 7 Drain cap 8 Attachment panel 10 Heat exchanger 15 Screw (Pivot member)
16 Screw (Pivot member)
17 Screw 18 Female screw hole 19 Fixing hole 20 Vertically long hole 21 Vertically long hole 22 Discharge port 23 Discharge port 24 Locking hole 25 Through hole 26 Through hole 27 Pivoting hole 28A, 28B Support means 29 Fixing means 30 Main body casing 32 Pivot Hole 33 Female threaded hole 34 Female threaded hole 36 Seal elastic member 37 Water stop structure H1, H2 Horizontal axis θ angle

Claims (4)

A box-shaped main body casing in which a ventilation path is formed; a heat exchanger that is arranged in the ventilation path of the main body casing and performs heat exchange with air; and the heat exchanger in the ventilation path In an indoor unit for air conditioning comprising a drain pan disposed at a lower position and receiving drain water from the heat exchanger,
Drain outlets formed respectively on the left and right ends of the drain pan;
A support means for supporting the drain pan in a tiltable manner in the left-right direction;
An air conditioner indoor unit comprising: a fixing unit that fixes the drain pan supported by being tilted in the left or right direction by the support unit. The indoor unit for air conditioning according to claim 1, wherein the support means is configured by a pivot member that supports the drain pan so as to be rotatable about a substantially horizontal axis with respect to the main body casing. A fixing means is formed in each of the left and right side panels constituting the main casing, and a vertically long hole that is inserted through the left and right drain discharge ports of the drain pan so as to be movable up and down.
An attachment panel that is detachably attached to the side panel in a state of covering the longitudinal hole;
It is formed in the attachment panel, and is constituted by a locking hole that locks the drain discharge port portion of the drain pan that protrudes from the vertically long hole of the side panel,
The indoor unit for air conditioning according to claim 1 or 2, wherein the position of the locking hole in the attachment panel is a position capable of locking the drain discharge port portion on the lower side of the inclined drain pan. . By sticking an elastic member for sealing to the outer surface of the left and right side walls of the drain pan or the inner surface of the left and right side panels of the main body casing, and between the left side wall of the drain pan and the left side panel of the main body casing, and the drain pan The indoor unit for air conditioning as described in any one of Claim 1- Claim 3 provided with the water stop structure which seals between each right side wall of this and the right side panel of a main body casing.

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