JP3732282B2 - Air conditioner indoor unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an indoor unit of an air conditioner provided with a blower corresponding to a heat exchanger and mounted on a wall such as a living room.
[0002]
[Prior art]
5 to 7 are views showing an indoor unit of a conventional air conditioner. FIG. 5 is a longitudinal side view of the indoor unit, FIG. 6 is a rear view of FIG. 5, and FIG. 7 is an enlarged view of a main part of FIG. FIG. In the figure, 1 is a box that constitutes an indoor unit, 2 is a blower provided in the box 1, and 3 is a front heat exchanger that is provided in the box 1 and arranged closer to the front face and corresponds to the blower 2. Reference numeral 4 denotes a rear heat exchanger provided in the box body 1 and arranged corresponding to the blower 2 and having a lower end arranged closer to the back surface of the box body 1.
[0003]
Reference numeral 5 denotes a main plate of the box 1, which is arranged near the back of the box 1 and forms the back side of the air passage by the blower 2, and 6 is formed in a groove shape and integrally formed on the back of the back plate 5. The first drainage channel 7 is disposed opposite to the lower edge of the rear heat exchanger 4 and drains drain water generated in the rear heat exchanger 4, and 7 is provided at both longitudinal end portions of the first drainage channel 6. It is a drain hole.
[0004]
Reference numeral 8 denotes a second drainage channel which is formed in a groove shape and is integrally formed on the back surface of the back plate 5, and is provided on the lower side of the first drainage channel 6 so as to face the drainage hole 7. One side descends and is inclined, and a descending drainage channel 9 is provided at the descending end. A drain pan 10 is disposed opposite to the lower edge portion of the front heat exchanger 3, and the drainage from the descending drainage channel 9 joins.
[0005]
The indoor unit of the conventional air conditioner is configured as described above, and drain water generated in the back heat exchanger 4 is collected in the first drainage channel 6 and passes through the drainage hole 7 and the back surface of the back plate 5 to the second drainage channel. 8 flows. Then, the drain water is drained to the drain pan 10 through the descending drainage channel 9 and the drain water generated in the front heat exchanger 3 flows to the drain pan 10, and the drain water of the drain pan 10 is connected to the hose that is not shown in the figure. It is designed to drain into the right place.
[0006]
[Problems to be solved by the invention]
In the indoor unit of the conventional air conditioner as described above, the drain water generated in the back heat exchanger 4 flows into the first drainage channel 6 and the second drainage channel 8, thereby cooling the corresponding portion of the back plate 5. . For this reason, there was a problem that the back plate 5 was dewed and this dew water was transferred to the back plate 5 and dropped onto a room or the like where the indoor unit was installed.
[0007]
The present invention has been made to solve such problems, and an object of the present invention is to obtain an indoor unit of an air conditioner that does not cause condensation due to the drainage of the drain water generated in the back heat exchanger. To do.
[0008]
[Means for Solving the Problems]
In the indoor unit of the air conditioner according to the present invention, a box, a blower provided in the box, and a lower end provided near the upper portion of the box and corresponding to the blower, the lower end is closer to the back of the box. A back heat exchanger arranged in the back, a back plate constituting the main part of the box body and arranged near the back side of the box body and forming the back side of the air passage by the blower, and a back plate having a groove shape opened upward A first drainage passage that is integrally formed on the back surface of the rear heat exchanger, has an opening opposed to the lower edge of the rear heat exchanger, has a drainage hole, and drains drain water generated in the rear heat exchanger. A first space formed between the back plate back surface and the side wall on the back plate side of the first drainage channel, and a groove shape opened upward, and is formed integrally with the back surface of the back plate, It is formed between the second drainage channel provided below the drainage channel, the back surface of the back plate and the side wall on the back plate side of the second drainage channel. A second cavity with the upper end drainage holes, the lower end is provided with water guiding means arranged to form a gap between the back plate rear surface subjected to be connected to a second drainage channel.
[0009]
In the indoor unit of the air conditioner according to the present invention, the first space and the second space are configured in a closed cross-sectional shape in the cross section.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 3 are views showing an example of an embodiment of the present invention. FIG. 1 is a longitudinal side view of an indoor unit, and FIG. 2 is an enlarged perspective view showing a main part on the back side of the back plate of FIG. FIGS. 3A and 3B are enlarged views of a portion A in FIG. 1, and the air conditioner indoor unit is configured in the same manner as FIGS. 5 to 7 except for FIGS. In the figure, 1 is a box that constitutes an indoor unit, and 2 is a blower provided in the box 1.
[0011]
The front heat exchanger 3 is provided in the box 1 and arranged near the front surface and corresponds to the blower 2, 4 is provided in the box 1 and arranged corresponding to the blower 2, and the lower end is the box 1. A back heat exchanger 5 disposed near the back surface is a back plate that forms a main part of the box 1 and is disposed near the back surface of the box 1 and forms the back side of the air passage by the blower 2.
[0012]
Reference numeral 11 denotes a first drainage channel for draining drain water generated in the rear heat exchanger 4. The first drainage channel has a groove shape opened upward, and is integrally formed on the rear surface of the rear plate 5. The openings are arranged to face each other. 12 is a first space formed between the back surface of the back plate 5 and the side wall on the back plate 5 side of the first drainage channel 11, and 7 is drainage holes provided at both longitudinal ends of the first drainage channel 11. is there.
[0013]
Reference numeral 13 denotes a second drainage channel, which is formed in a groove shape that opens upward, is formed integrally with the back surface of the back plate 5, and is provided below the first drainage channel 11 with the opening facing the drainage hole 7. One side of the box body 1 is arranged so as to be inclined while descending, and a descending drainage channel 9 is provided at the descending end. Reference numeral 14 denotes a second space formed between the back surface of the back plate 5 and the side wall of the second drainage channel 13 on the back plate 5 side.
[0014]
A drain pan 10 is disposed opposite to the lower edge portion of the front heat exchanger 3, and the drainage from the descending drainage channel 9 joins. 15 is a water guide plate that guides drain water flowing down from the drainage hole 7 to the second drainage channel 13. The upper end is connected to the edge of the drainage hole 7 near the back plate 5, and the lower end is connected to the second drainage channel 13. A gap is formed between the back plate 5 and the back surface.
[0015]
In the indoor unit of the air conditioner configured as described above, drain water generated in the rear heat exchanger 4 is collected in the first drainage channel 11, passes through the drainage hole 7 and the water guide plate 15, and enters the second drainage channel 13. Flowing. Then, the drain water is drained to the drain pan 10 through the descending drainage channel 9 and the drain water generated in the front heat exchanger 3 flows to the drain pan 10, and the drain water of the drain pan 10 is connected to the hose that is not shown in the figure. To drain into place.
[0016]
In the configuration as described above, the first space 12 and the second space 14 are formed between the first drainage channel 11 and the second drainage channel 13 and the back surface of the back plate 5. For this reason, even if the drain water generated in the back heat exchanger 4 flows into the first drainage channel 11 and the second drainage channel 13, the drainage channel corresponding part of the back plate 5 is not cooled. Therefore, the dew condensation of the back plate 5 due to the drain water of the first drainage channel 11 and the second drainage channel 13 does not occur. Thereby, the malfunction which the dew condensation water of the backplate 5 is transmitted to the backplate 5 and dripped at the living room etc. in which the indoor unit was installed can be eliminated.
[0017]
Embodiment 2. FIG.
FIG. 4 is a view showing an example of another embodiment of the present invention, which corresponds to FIG. 3 described above, and the air other than FIG. 4 is the same as in FIGS. 5 to 7 and FIGS. The indoor unit of the harmony device is configured. In the figure, the same reference numerals as in FIGS. 1 to 3 denote the corresponding parts, and 16 is formed between the back surface of the back plate 5 and the side wall on the back plate 5 side of the first drainage channel 11 and has a closed cross-sectional shape in the cross section. The first void 17 is formed between the back surface of the back plate 5 and the side wall of the second drainage channel 13 on the back plate 5 side, and is a second space configured in a closed cross-sectional shape in the cross section. is there.
[0018]
Even in the configuration as described above, the first drainage channel 11, the second drainage channel 13, and the back plate 5 are formed with a first cavity 16 and a second cavity 17, and the first drainage channel 11, Condensation of the back plate 5 due to drain water in the second drainage channel 13 is prevented. Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 3 can be obtained also in the embodiment of FIG.
[0019]
【The invention's effect】
As described above, the present invention includes a box, a blower provided in the box, and a rear surface provided near the upper portion of the box and corresponding to the blower and having a lower end disposed near the back of the box. A heat exchanger, a back plate that forms the main part of the box and is located near the back of the box and forms the back side of the blower passage by the blower , and has a groove that opens upward and is integrated with the back of the back plate A first drainage channel having an opening facing the lower edge of the rear heat exchanger, having a drain hole, and draining drain water generated in the rear heat exchanger; A first space formed between the side wall on the back plate side of the first drainage channel and a groove shape opened upward, and formed integrally on the back surface of the back plate, below the first drainage channel The second drainage channel provided, the second space formed between the back plate back surface and the side wall on the back plate side of the second drainage channel, and the upper end The drain hole, the lower end is obtained by a water guide means arranged to form a gap between the back plate rear surface subjected to be connected to a second drainage channel.
[0020]
As a result, the drain water generated in the rear heat exchanger is collected in the first drainage channel, and the drain water collected in the first drainage channel flows to the second drainage channel through the drainage hole and the water guide plate, and the second drainage channel. The drain water that has flowed into the drain is drained. Here, even if the drain water cooled to the first drainage channel, the second drainage channel, and the water guiding means flows, the heat insulation effect of the first space, the second space, and the gap between the water guiding means and the back plate causes the back plate to The drainage-corresponding part is not cooled. Therefore, the occurrence of dew condensation on the back plate due to drain water in the drainage channel is eliminated, and there is an effect of eliminating the problem that the dew condensation water on the back plate is dripped into a room or the like where the indoor unit is installed. Also, since a drainage channel having a groove shape opened upward is provided, the drainage channel can be easily fitted to the lower edge of the rear heat exchanger, and the structure can be simplified. is there.
[0021]
Further, as described above, the present invention is characterized in that the first space and the second space are formed in a closed cross-sectional shape in the cross section.
[0022]
As a result, drain water generated in the rear heat exchanger is collected in the first drainage channel, and the drain water collected in the first drainage channel flows to the second drainage channel through the drainage hole and the water guide plate, and the second drainage channel. The drain water that has flowed into the drain is drained. Here, even if drain water cooled to the first drainage channel, the second drainage channel, and the water conveyance means flows, the heat insulation effect of the first space, the second space, and the gap between the water conveyance means and the back plate causes the back plate to The drainage-corresponding part is not cooled. Therefore, the occurrence of dew condensation on the back plate due to drain water in the drainage channel is eliminated, and there is an effect of eliminating the problem that the dew condensation water on the back plate is dripped into a room or the like where the indoor unit is installed. In addition, since a space with a closed cross-section is formed between the back surface of the back plate and the side wall of the drainage channel, there is no accumulation of dust in the case of an open space, and troubles due to the accumulation of dust are obviated. There is an effect to prevent.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of the present invention, and is a longitudinal side view of an indoor unit.
2 is an enlarged perspective view showing a main part on the back surface side of the back plate of FIG. 1. FIG.
FIG. 3 is an enlarged view of a portion A in FIG.
FIG. 4 is a diagram showing a second embodiment of the present invention and corresponding to FIG.
FIG. 5 is a longitudinal side view showing an indoor unit of a conventional air conditioner.
6 is a rear view of FIG. 5. FIG.
7 is an enlarged perspective view showing a main part of FIG. 6. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Box body, 2 air blower, 4 back heat exchanger, 5 back plate, 11 1st drainage channel, 12 1st empty space, 13 2nd drainage channel, 14 2nd empty space, 15 water guide plate, 16 1st empty space 17 Second empty space.

Claims (2)

Box and
A blower provided in the box,
A rear heat exchanger provided near the upper part in the box and disposed corresponding to the blower, and a lower end disposed near the back of the box;
A back plate that constitutes the main part of the box and is arranged near the back of the box and forms the back side of the air passage by the blower,
Formed in the shape of a groove that opens upward, is integrally formed on the back surface of the back plate, the opening is disposed opposite to the lower edge of the back heat exchanger, has a drain hole, and the back heat exchange A first drainage for draining drain water generated in the vessel;
A first space formed between the back plate back surface and the side wall on the back plate side of the first drainage channel;
A second drainage channel formed below the first drainage channel, integrally formed on the back surface of the back plate, having a groove shape opened upward;
A second space formed between the back plate back surface and the side wall on the back plate side of the second drainage channel;
A wall-hanging room of an air conditioner having an upper end connected to the drainage hole and a lower end connected to the second drainage channel and water introduction means arranged with a gap formed between the rear plate back surface Machine. The wall-mounted indoor unit for an air conditioner according to claim 1, wherein the first space and the second space have a closed cross-sectional shape in cross section.

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