JPH0756394B2 - Air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner that cools or heats a room.

2. Description of the Related Art A conventional embodiment will be described with reference to FIGS. FIG. 11 and FIG. 12 are transverse cross-sectional views of a main part of a ceiling-mounted air conditioner (1), (2) a front grill, (3) a blowout port, and (4) a suction port. mouth,
(5) is an air filter, (6) is an indoor heat exchanger that constitutes a known refrigeration cycle, (7) is a water tray for treating condensed water of the indoor heat exchanger (6), and (8) is A cross-flow fan that sends the air that has undergone heat exchange in the indoor heat exchanger (6) to the outlet (3), (9) a stabilizer, and (1)
0) is a fan casing.

FIG. 9 and FIG. 11 are vertical cross-sectional views of a main part of the air conditioner (1), in which (11) is a motor for driving the cross flow fan (8) and (12) is a power supply plate. Is.

FIG. 12 is a cutaway cross-sectional view of a main part of an air conditioner (1) showing another conventional example, and (13) is an evaporation tray provided below the indoor heat exchanger (6), Evaporating dish (13a) on the bottom
And around it, rising ribs (13
b), and a plurality of evaporation dishes are arranged horizontally and on the steps.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above configuration, when the inclination angle (θ) of the heat exchanger (6) is less than 60 °, the heat exchanger (6) deteriorates with time, dust on the heat exchanger (6), There is a problem that condensed water drips into the room from the heat exchanger (6) due to adhesion of oil or the like. Therefore, if it is attempted to maintain the inclination angle θ of the heat exchanger (6) at 60 ° or more, the height (H) of the main body becomes high as shown in Fig. 8, and in this type of air conditioner embedded in the ceiling, However, there was a problem that it could not be installed in the ceiling. Also, as shown in FIG.
If the inclination angle θ of the heat exchanger (6) is set to less than 60 ° in order to reduce the height (H) of the main body, a water pan that covers the front area of the projection surface of the heat exchanger (6) is required, and the suction opening area Is necessary, the depth dimension (W) of the main unit becomes large,
There were various problems such as increased ventilation resistance, increased noise value, increased material cost, and poor installability. Also,
As shown in Fig. 12, a plurality of evaporation pans (1
There is a 3) staircase, but there is an evaporating dish (13a).
Is placed in parallel with the suction port, the ventilation resistance on the suction side is large, and there were problems such as increased motor output, increased noise value, overflow from the evaporation tray at high load, and condensation on the evaporation tray. . In view of the above-mentioned conventional problems, the present invention makes it possible to set the inclination angle (θ) of the heat exchanger to less than 60 °, reduce the height of the main body and reduce the depth, and reduce the condensed water into the room. The purpose is to prevent dripping. Another object of the present invention is to prevent the condensed water from dripping into the room and to rectify the flow of air from the suction port to the heat exchanger to further reduce noise. The present invention also improves the wind speed distribution of the heat exchanger,
The purpose is to increase the heat exchanger capacity.

Means for Solving the Problems In order to solve the above problems, the present invention has an inlet and an outlet on the lower surface of an air conditioner, and an indoor heat exchanger and a fan that constitute a known refrigeration cycle in the main body. A casing, a stabilizer, a cross-flow fan, a blower for driving the cross-flow fan, and a water tray for treating condensed water of the indoor heat exchanger are provided, and are provided on the downstream side of the indoor heat exchanger and in the chamber. On the projection surface of the inner heat exchanger, having a rising rib of a predetermined height, tilted at an arbitrary angle in a counterclockwise direction from a horizontal plane, a water receiving trough consisting of a saucer surface extending toward the heat exchanger, A protrusion for draining that extends downward to the rear edge of the water receiving trough, a rising rib of the lower water receiving trough, and a rear edge of the saucer surface of the upper water receiving trough are overlapped with each other, and at the bottom end. After a water receiving gutter The edge is
A plurality of water receiving troughs are arranged in a staircase so as to overlap with the water receiving trays, and each end of each water receiving trough is connected to each water receiving trough, and is composed of a U-shaped guide trough communicating with the water receiving tray. A second water tray is provided. Further, in the present invention, the water receiving trough is arranged such that the distance between the water receiving troughs in the second water receiving tray becomes larger as the distance from the cross flow fan increases.

Action The action of the above means is as follows. The present invention has a rising rib having a predetermined height below the indoor heat exchanger and on a downward projection surface of the indoor heat exchanger, and tilts at an arbitrary angle above a horizontal plane. Water trough consisting of a saucer surface extending toward, a draining protrusion extending downward at the rear edge of the water trough, a rising rib of the lower water trough, and an upper water trough. A plurality of water receiving troughs are arranged in a staircase so that the rear edge of the water receiving trough surface overlaps and the rear edge of the water receiving trough at the lowermost end overlaps with the water receiving tray. By providing the second water tray which is connected to each water tray and has a U-shaped guide trough that communicates with the water tray, all the dripping water from the heat exchanger is received by the water trough and guided. It can be led to a water tray with a gutter, and condensed water can be dripped into the room. It is possible to prevent the condensed water from overflowing. In addition, the rear edge of the water receiving trough is provided with a projection for draining that extends downward, so that the heat exchanger allows the It is possible to prevent the dropped water from crawling on the back surface of the water receiving trough and dropping into the room. Also, by tilting the saucer surface of the water receiving gutter toward the heat exchanger above the horizontal plane by an arbitrary angle, it is possible to smoothly guide the wind from the suction port to the heat exchanger, increasing the ventilation resistance on the suction side. The heat exchanger can be tilted to less than 60 ° without having to increase the height and depth of the body. Further, by arranging the water receiving trough so that the distance between the water receiving troughs in the second water receiving tray becomes larger as the distance from the cross flow fan increases, the wind is mainly blown only to the portion close to the cross flow fan until now. The wind velocity distribution such as flowing can be improved, and the heat exchanger capacity can be increased.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view of a ceiling-mounted air conditioner body (1) according to an embodiment of the present invention, and FIGS. 1 and 3 are notches of the main part of the air conditioner body (1). It is a horizontal sectional view and a vertical sectional view. Further, FIGS. 4 to 6 each show a portion of the water tray.

In the figure, (2) is a front grill, (3) is an outlet, (4) is an inlet, (5) is an air filter,
(6) is an indoor heat exchanger that constitutes a well-known refrigeration cycle, (7) is a water tray for treating condensed water of the indoor heat exchanger, (8) is a crossflow fan, and (9) is a stabilizer. (10) is a fan casing.

FIG. 3 is a cutaway vertical sectional view of an essential part of the air lengthening machine (1). In the figure, (11) is a motor for driving the cross flow fan (8), and (12) is a power supply plate. (14) is a water receiving gutter provided below the indoor heat exchanger (6) and on the projection surface of the heat exchanger (6), and (14a) is a rising rib of a predetermined height, 14b) is a saucer surface inclined to an arbitrary angle (α) above the horizontal plane and extends toward the heat exchanger (6), (14c) is a trailing edge of the saucer surface, and (14d) is below the trailing edge. It is a protrusion for draining out. The water saucer (14) includes a rising rib (14a) and a saucer surface (14).
b) The rear edge (14c) is superposed, and the rear edge (14c) of the saucer surface (14b) of the water receiving trough (14) at the lowermost end is superposed with the water receiving tray (7) in a stepwise manner. A plurality of U-shaped guide troughs (15) are provided, which are connected to the respective water receiving troughs (14) at both ends of each water receiving trough (14) and communicate with the water receiving tray (7). Two water trays (16) are provided. Next, referring to FIG. 7, a second embodiment of the present invention will be described. FIG. 7 is a cross-sectional view of the second water receiving tray (19) of the present invention, where 17 is a water receiving trough, (17a) is a rising rib of a predetermined height, and (17b) is a heat exchanger (6). (17c) is a trailing edge of the saucer surface, and (17d) is a draining protrusion extending below the trailing edge. A plurality of water receiving troughs (17) are arranged on the stairs below the heat exchanger (6) as in the first embodiment,
U-shaped guide gutters (18) leading to the water tray (7) are provided at both ends thereof. Further, the intervals (l ₁ , l ₂ , l ₃ ) between the water receiving gutters (17) are set to increase (l ₃ > l ₂ > l ₁ ) as the distance from the crossflow fan (8) increases. Has been done.

EFFECTS OF THE INVENTION As is apparent from the above-mentioned embodiment, the present invention is on the downstream side of the indoor heat exchanger, and on the downward projection surface of the indoor heat exchanger,
A water receiving trough that has a rising rib of a predetermined height, is inclined at an arbitrary angle above the horizontal plane, and has a saucer surface that extends toward the heat exchanger, and a water receiving trough that extends downward toward the rear edge of the water receiving trough. The extended projections for draining water, the rising ribs of the lower water receiving gutter, and the trailing edge of the saucer surface of the upper water receiving gutter are superposed, and the trailing edge of the water receiving gutter at the lowest end is the water receiving tray. A plurality of water receiving troughs are arranged in a staircase so as to overlap with each other, and a U-shaped guide trough connected to each water receiving trough at each end of each water receiving trough and connected to the water receiving tray.
By providing the water receiving tray of the above, all the dripping water from the heat exchanger can be received by the water receiving trough, and can be guided to the water receiving tray by the guide trough, so that the condensed water drops inside the room and the condensed water from the water receiving trough Can be prevented from overflowing.

Furthermore, by providing a projection for draining that extends downward of the rear edge of the water receiving trough, the water dropped from the heat exchanger to the rear edge of the water receiving trough crawls on the back surface of the water receiving trough. It is possible to prevent dripping into the room. Also, by tilting the saucer surface of the water receiving gutter upward toward the heat exchanger by an arbitrary angle, it is possible to smoothly guide the air from the suction port to the heat exchanger, without increasing the ventilation resistance on the suction side. , The heat exchanger can be tilted to less than 60 °, and the main body can be constructed without increasing the original height and depth. Further, by arranging the water receiving trough so that the distance between the water receiving troughs in the second water receiving tray becomes larger as the distance from the cross flow fan increases, the wind is mainly blown only to the portion close to the cross flow fan until now. It has various advantages such that the problem of the wind velocity distribution such as flowing can be improved and the heat exchanger capacity can be enhanced.

[Brief description of drawings]

1 is a cross-sectional view of an air conditioner showing an embodiment of the present invention, FIG. 2 is a perspective view of the air conditioner, FIG. 3 is a vertical cross-sectional view of the air conditioner, and FIG. FIG. 5 is a side view of the water receiving tray in the air conditioner, FIG. 5 is a front view of the water receiving tray, FIG. 6 is a sectional view taken along the line AA in FIG. 5, and FIG. 7 is a second view of the second embodiment. A side sectional view of the water tray, FIG. 8 is a lateral sectional view of the air conditioner showing the first conventional example, FIG. 9 is a vertical sectional view of the air conditioner, and FIG. 10 is a second conventional example. FIG. 11 is a vertical cross-sectional view of the air conditioner, FIG. 11 is a vertical cross-sectional view of the air conditioner, and FIG. 12 is a cut-away horizontal cross-sectional view of the air conditioner showing a third conventional example. 1 ... Air conditioner body, 2 ... Front grille, 3 ... Blowout port, 4 ... Suction port, 5 ... Air filter, 6 ...
… Heat exchanger, 6a …… Hairpin, 6b …… Return bend,
7 ... Water pan, 8 ... Cross flow fan, 9 ... Stabilizer, 10 ... Fa casing, 11 ... Motor, 12
...... Power supply board, 14,17 ...... Water receiving trough, 14a, 17a ...... Rising ribs, 14b, 17b ...... Sauce surface, 14c, 17c ...... Rear edge, 14d,
17d …… Protrusion, 15,18 …… Guide trough, 16,19 …… Second water tray.

Claims (2)

[Claims] 1. An indoor heat exchanger having a suction port and a discharge port on the lower surface thereof, which constitutes a well-known refrigeration cycle in the main body,
A crossflow fan that sends the air that has been heat-exchanged in the indoor heat exchanger to the outlet, a driving unit that drives the crossflow fan, and a water tray that processes condensed water of the indoor heat exchanger. Provided below the indoor heat exchanger and on the downward projection surface of the indoor heat exchanger, a rising rib having a predetermined height is provided, and the heat exchanger is inclined at an arbitrary angle above a horizontal plane. A water receiving gutter consisting of a saucer surface that extends toward the water receiving gutter, a draining protrusion extending downward at the rear edge of the water receiving gutter, a rising rib of the lower water receiving gutter, and an upper water receiving gutter. While the trailing edge of the saucer surface is superposed, the trailing edge of the water receiving trough at the lowermost end is provided with a plurality of water receiving troughs arranged stepwise so as to overlap with the water receiving tray, and at both ends of each water receiving trough, Connect to each water receiving gutter and connect to the water receiving tray Consisting guide trough-shaped, air conditioner provided with a second water receiving tray. 2. The air conditioner according to claim 1, wherein the water receiving trough is arranged such that a distance between the water receiving portions in the second water receiving tray increases as the distance from the cross flow fan increases.