JPH1194285A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner including a drain receiving apparatus in which a draining property is improved of a drain pan for receiving drain water from a heat exchanger, and the apparatus is prevented from being directly exposed to suction air, and dew is made liable to adhere to a side of an outlet of the drain pan. SOLUTION: When drain water from a heat exchanger 13 is received on a dew reception pan 15 including a plurality of separated drain water passages 16, 17, and 18, the drain water passages have slopes flowing smoothly down from the neighbourhood of the center to the left and the right. Since the drain water is thus prevented from staying, the dew reception pan 15 is prevented from being cooled and prevents the dew from adhering thereto. Further, a rib 20 dividing the water passages is applied to a lower portion (assumed to be neighbourhood) of the heat exchanger, whereby air is interrupted which directly strikes the drain pan 15 without passing through the heat exchanger to produce dew. Thus, an indoor machine 1 is constructed in which drain water is prevented from dropping from the outlet 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a blower inside,
With a heat exchanger through which the refrigerant flows, relates to an air conditioner that blows cold or hot air that has exchanged heat into a room, particularly during cooling,
The present invention relates to an improvement of a dew tray suitable for treating dew generated in a heat exchanger.

First, the structure of an air conditioner, that is, an indoor unit 1 according to the present invention will be described with reference to FIG. 3 and FIG. 1 according to the present invention.

The indoor unit 1 is horizontally long, and its main body 2 comprises a front and rear grill case 2A and a rear case 2B formed of a synthetic resin. Then, as shown in FIG. 1, a suction port 3 is formed from the upper surface portion to the front surface portion of the grill case 2A, and an air outlet 4 is formed on the lower surface portion.

[0004] Reference numeral 5 denotes a suction panel mounted so as to cover the suction port 3 from the upper surface to the front part. When the suction panel is opened, the air filter 6 and the grill case are detachable from the suction port 3. An operation display section 7 and the like arranged on the side of 2A appear, and services such as replacement of the filter 6 and control adjustment can be performed.

An air passage 11 is formed in the interior of the indoor unit 1 so as to communicate between the suction port 3 and the air outlet 4 provided on the front side, respectively. A cross throw fan 12 is disposed,
Further, a heat exchanger 13 is disposed upstream of the cross throw fan 12, that is, on the side of the suction port 3.

The heat exchanger 13 has a cross section that covers both the suction ports so that the suction air from the suction port 3 on the upper surface and the suction air from the suction port 3 on the front section can exchange heat without waste. It has a shape that is bent in a substantially rectangular shape. The structure is composed of a large number of aluminum heat exchange fins juxtaposed side by side with a small gap therebetween and a refrigerant pipe penetrating perpendicularly to these heat exchange fins so as to meander up and down. The refrigerant supplied from the outdoor unit separated from the indoor unit to the refrigerant pipe via the refrigerant pipe flows through the refrigerant pipe.

The indoor unit 1 has such a structure. During the cooling operation, the air sucked by the rotation of the cross-slow fan 12 passes through the heat exchanger 13 to be turned into cool air, and is provided at the outlet 4. The wind direction is blown in an arbitrary direction by a wind direction plate 14 or the like that changes the wind direction to the left or right.

[0008] Here, if the cooling operation is continued for a long time, the air passing through the heat exchanger is gradually lowered, so that moisture contained in the air adheres to the heat exchanger as dew. In the dry operation, the moisture contained in the air is made to adhere to the heat exchanger.

[0009] Dew adhering to the heat exchanger during the cooling operation or the dry operation travels through the heat exchanger and collects at a lower portion thereof, and is received by a dew tray disposed below the heat exchanger. It is discharged outside by such means.

[0010] The dew tray 15 has a lower surface 1 due to its structure.
5B, the air passage 11 and the air outlet 4 and the like are also formed as one member formed by an arc-shaped wall 19 formed inside the main body, and also serve as the air passage upper wall of the air outlet.

[0011]

Here, if the received drain water (dew) does not immediately flow away in the discharge direction, the drain water that has stagnated in the dew tray is cooled. Dew forms on the lower surface, which also serves as the upper wall of the air passage, and if it is too much, the dew blows out with the wind, or it drops into the outside of the air passage, causing problems such as wetting the room. There is.

In addition, in the case where the indoor unit is installed at an angle when installed, the drainage becomes poor. However, in such a case, the drainage is performed well and the drainage water does not stagnate. It must be a dew receiving device.

Further, if the drain port is limited depending on the room and the direction of drainage from the dew tray is fixed to only one direction, the drainage passage connecting the dew tray and the drain port is restricted, and the piping length becomes longer. In some cases, it may be difficult to arrange the piping due to complicated piping paths.Therefore, a flexible dew tray that allows drain water to flow in either the left or right direction desirable.

Further, since the dew tray is located near the heat exchanger and has a low temperature, if the air containing the external moisture directly hits the dew tray, a large amount of dew will be formed on the dew tray, and the room will be indoors. Therefore, a structure that avoids direct contact of the outside air with the dew tray is also desired, since it causes problems such as dripping of water.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and by smoothly draining received drain water so as not to leave the drain water, the dew tray is kept cool so that the dew tray is not cooled. Prevents adhesion and prevents the outside air that causes dew from hitting the cold dew tray directly without passing through the heat exchanger, and is not affected by the slight inclination posture when installing the indoor unit It is an object of the present invention to provide an air conditioner improved so as to achieve a good drainage property or a flexible drainage in which a drainage direction is not restricted by a room structure.

[0016]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction port provided on a front surface of a main body case, an air outlet for blowing air sucked from the air inlet, and a suction port. A blower arranged in an air passage communicating with the outlet,
An air conditioner, which is disposed in the air passage and has a heat exchanger that exchanges heat with room air sucked from a suction port by a blower, receives drain water from the heat exchanger below the heat exchanger; A drain tray for the drain is provided, and a plurality of drain channels extending in the left-right direction are provided in the tray, and one or more of the drain channels have a gradient.

[0017] The gradient is such that the drain channel is long in the lateral direction and descends in the left-right direction with its substantially central portion as the apex.

Further, when the dew tray is opposed to the lower portion of the heat exchanger, the dew tray is a member forming the air passage and the upper wall of the air outlet facing the lower wall of the air passage. On the other hand, the gap between the opposed dew tray and the heat exchanger is formed by abutting or approaching the tip of the rib separating the plurality of drain channels formed in the dew tray to the lower part of the heat exchanger. To block the air flow that passes through so as to directly hit the dew tray without passing through the heat exchanger, thereby preventing the dew tray from being exposed to the lower surface facing the air passage side.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 15 denotes a dew receiving tray integrally formed of a synthetic resin. The dew receiving tray 15 is provided below the heat exchanger 13 so as to receive drain water (dew) d dropped from the heat exchanger 13. They extend so as to face each other for the length of the left and right sides (length in the left-right direction), and are installed so as to be inclined forward as a whole.

A plurality of drain water passages 16, 17, 18 running in the left-right direction are formed inside the dew receiving tray 15 side by side.

Drain water from the front drain water passages 16 and 17 described below is collected in the rear drain water passage 18 through communication water passages (not shown) at both ends of the drain water passage 18 and the drain water passages. It is supposed to be.

The heat exchange portion 13A of the vertical portion of the heat exchanger 13 is located in front of the drain water channel 18 at the rear.
A first drain water path 16 and a second drain water path 17 in front of which the flow path is completely divided by a rib 20 are formed extending right and left just below the right side.

Here, the bottom surface of the front first drain passage 16 and the bottom surface of the second drain passage 17 gradually descend left and right with the substantially central portion P as the apex, as shown by the broken line in FIG. The inclined planes 16S and 17S are formed.

In the case of such a drain channel having a bottom surface having a downward slope, the drain water dropped from the heat exchanger 13 and dropped into the first drain channel 16 and the second drain channel 17 is discharged from each of the drain channels. The fluid flows smoothly left or right without stagnating in the drain water passages 16 and 17, and passes through the above-mentioned communication water inlet (not shown), and the rear drain water passage 18
The water is collected.

Since the bottom of the drain water channel 18 where the drain water gathers is inclined forward so that the bottom is inclined downward, even if a small amount of dew drops into the drain water channel 18, the drain water is located in front of the drain water channel 18. Enough to accumulate,
The accumulated water is connected to the drain, and drains naturally, so that the drain can be easily drained from either the right or left drain.

As described above, even if the dew tray 15 receives the drain water dripped from the heat exchanger 13, the dew tray 15 is made to flow down immediately so as not to stagnate, so that the dew tray 15 is cooled by the stagnant drain water. And the dew tray 15 is less likely to be dewed.

Therefore, the problem that the dew (indicated by a dotted line) d 'adhered to the lower surface portion 15B of the dew tray 15 as in the related art drops into the room from the air passage 11 and becomes wet does not occur.

Further, the drain channels 16 and 17 having the downwardly inclined bottom surfaces 16S and 17S extending right and left with the approximate center P as the apex can be easily drained regardless of whether the drain port is on the left or right side. Become.

That is, depending on the room in which the indoor unit 1 is installed, there are cases where the drain port is either on the right side or on the left side. To the left and right down-drain drain channel 1
The water can be drained to both the right and left sides by 6, 17 to collect water, so flexibility in piping design and construction for drainage can be obtained, piping length can be shortened, easy laying can be performed, Equipment costs can be reduced and piping work can be improved.

By focusing on the positional relationship between the heat exchanger 13 and the dew tray 15 provided below the heat exchanger 13,
The lower part of the first drain channel 16 in the dew tray 15
The tip of the rib 20 that divides the flow path into the drain drain passage 17 and the second drain water passage 17 contacts the lower end of the fin forming the heat exchanger 13 or approaches the bottom so as to contact the lower end of the fin.
5 are arranged.

The rib 2 for dividing the flow path of the drain water as described above
When 0 is brought into contact with or close to the lower surface of the heat exchanger 13, of the room air sucked from the suction port 3, the air passes through the gap t between the heat exchanger 13 and the lower tray 15, It is possible to effectively shut off room air that is going to flow without passing through the heat exchanger 13.

The purpose of this is that the room air passing through the heat exchanger 13 is cooled and dehumidified, so that it does not become exposed when it hits the dew tray 15, but it passes through the gap t without passing through the heat exchanger 13. If there is room air that directly hits the heat exchanger 13, the dehumidification is insufficient, and the moisture in the air that is not dehumidified causes the dew receiving tray 15 to be exposed.

Then, structurally, the lower surface 1 of the dew tray 15
5B forms the upper wall of the air passage 11, especially the outlet 4, so that the dew sticks out with the wind from the outlet 4, and the dew drops on the floor of the room due to the fall. Occurs.

Thus, by preventing the passage of room air which causes such dew, the large amount of dew on the outer surface of the dew tray 15 is eliminated.

In this way, the dew tray 15 is hardly exposed to dew, so that the above-mentioned problem can be solved, and the floor is not wetted by the drain water.

Although the embodiment has been described with reference to a dew tray composed of three drain channels, the number of drain channels is not limited to three, and at least two drain channels may be provided in an appropriate number. It is sufficient if it is a dew tray formed in one or more of the drain channels having a plurality of drain channels provided with a downward slope.

[0038]

As described above, according to the present invention, the dew tray provided at the lower portion of the heat exchanger is constituted by a plurality of drain water passages formed by gathering gutters, whereby the drain water can be reliably received. And in one or more drainage channels,
The bottom is sloped so that the drain water received can flow smoothly to the drain.

First of all, by doing so, the residue of the dress water is eliminated, and if the drain water remains, the dew tray is cooled more.
It is possible to provide an air conditioner that eliminates the conventional disadvantage of increased dew and eliminates unpleasant and unsanitary dew spills from the outlet.

When a slope is formed in the drain channel, the drain received by the dew tray can be smoothly moved in one of the left and right directions by forming a substantially central portion as an apex and providing a downward slope in the left and right direction. It has the advantage of draining water and collecting water at the end, so that wastewater treatment can be performed more efficiently, and the drain port can be taken out from two directions, left and right. Even if it is decided, drain water can be discharged without restriction, so that workability such as installation of a drain pipe can be improved.

In addition, if the indoor unit has a dew tray having such a gradient, drain water can be discharged without stagnation even when the indoor unit is installed, even if the installation condition is slightly inclined back and forth. As a result, the installation can be performed without worrying about the difficulty in drainage due to the poor installation, and the installation work is facilitated.

Further, when the dew tray is opposed to the lower part of the heat exchanger, a gap formed between the two parts serves as an air passage which does not pass through the heat exchanger. The end of the rib that separates the heat exchanger is brought into contact with or close to the lower surface of the heat exchanger.

Thus, it is possible to prevent the outside air from directly hitting the low-temperature dew tray near the heat exchanger and prevent the contained moisture from becoming dew and sticking to the outer surface of the dew tray. If the dew tray becomes less likely to dew in this way, dew does not stick to the lower surface of the dew tray, which is also a member that forms the wall of the air passage, so that water blows out from the outlet with the wind,
In addition, a product (indoor unit) that does not drip can be provided, and hygiene can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of an air conditioner including a dew tray according to the present invention.

FIG. 2 is a front external view of a dew tray according to the present invention.

FIG. 3 is an external perspective view of the air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Suction port 3 Outlet 11 Air path 12 Blower 13 Heat exchanger 15 Dew receiving tray 16, 17, 18 Drain water path 16S, 17S Downhill surface P Top

 ──────────────────────────────────────────────────の Continuation of the front page (72) Inventor Takashi Kawanabe 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Toshimitsu Nakajima 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Koichi Aoishi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A suction port provided on a front surface of a main body case, an air outlet for blowing air sucked from the air inlet, and a blower arranged in an air passage communicating the air suction port with the air outlet.
An air conditioner provided in the air passage and having a heat exchanger for exchanging heat with room air sucked from a suction port by a blower, wherein drain water from the heat exchanger is received below the heat exchanger An air conditioner is provided, wherein a dew tray is provided, a plurality of drain channels extending in the left-right direction are provided on the dew tray, and a gradient is provided in one or more of the drain channels. 2. The air conditioner according to claim 1, wherein the gradient is a gradient descending in the left-right direction with a substantially central portion of the drain channel long in the lateral direction as a vertex. 3. The dew tray, when facing the lower part of the heat exchanger, is a component that forms the air path and the upper wall of the air outlet facing the lower wall of the air path. On the other hand, the tip of the rib that divides the plurality of drain water channels formed in the dew tray is brought into contact with or close to the lower part of the heat exchanger, so that the opposing dew tray and heat exchanger The airflow that is going to pass so as to directly hit the dew tray without passing through the heat exchanger from the gap is shut off to prevent dew on the lower surface of the dew tray facing the air passage side. The air conditioner according to claim 1, wherein