CN110939983A - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN110939983A CN110939983A CN201910176186.9A CN201910176186A CN110939983A CN 110939983 A CN110939983 A CN 110939983A CN 201910176186 A CN201910176186 A CN 201910176186A CN 110939983 A CN110939983 A CN 110939983A
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- CN
- China
- Prior art keywords
- dew
- air conditioner
- water
- indoor unit
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The invention provides an indoor unit of an air conditioner, which can inhibit the dew from generating on a dew receiving disc. The indoor unit of the air conditioner is provided with a heat exchanger for performing heat exchange between indoor air and a refrigerant, a fan for circulating the indoor air to the heat exchanger, a dew receiving plate for receiving dew from the heat exchanger, and a dew hole (11) which is provided in the dew receiving plate and discharges the dew to the outside. At least a part of the inlet portion of the dew water hole (11) on the lower side in the gravity direction forms a step portion (12) and is higher than the bottom of the dew receiving tray.
Description
Technical Field
The present invention relates to an indoor unit of an air conditioner.
Background
As a background art in this field, Japanese Kokai Sho 58-104812 (patent document 1) is known. This publication describes "a point at which a dew water drain pipe is connected to the main body base".
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication Sho 58-104812
Disclosure of Invention
Problems to be solved by the invention
However, the technique disclosed in patent document 1 is simply to connect a dew-water drain pipe to the main body base, and therefore there is a problem that dew condensation may occur in the main body base near the dew-water drain pipe due to cooling of dew-water.
Accordingly, an object of the present invention is to provide an indoor unit of an air conditioner capable of suppressing the occurrence of dew condensation on a dew receiver.
Means for solving the problems
In order to solve the above problem, one aspect of the present invention includes: a heat exchanger that performs heat exchange between indoor air and refrigerant; a fan configured to circulate the indoor air to a heat exchanger; a dew receiving pan that receives dew from the heat exchanger; and a dew-water hole provided in the dew-water receiving tray and discharging the dew-water to the outside, wherein at least a portion of a lower side of an inlet portion of the dew-water hole in a gravity direction forms a stepped portion higher than a bottom portion of the dew-water receiving tray.
Effects of the invention
According to the present invention, it is possible to provide an indoor unit of an air conditioner capable of suppressing the occurrence of dew condensation on a dew receiver.
Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.
Drawings
Fig. 1 is a cross-sectional view of an indoor unit of an air conditioner according to embodiment 1 of the present invention.
Fig. 2 is a perspective view of a leak receiver of an indoor unit of an air conditioner according to embodiment 1 of the present invention, as viewed from obliquely above.
Fig. 3 is a perspective view of an inlet portion of a dew-water hole as viewed from above the side portion of an indoor unit of an air conditioner according to embodiment 1 of the present invention.
Fig. 4 is a perspective view of an indoor unit of an air conditioner according to embodiment 1 of the present invention, as viewed from obliquely above, showing a leak tray flow path.
Fig. 5 is a perspective view of the leak tray flow path as viewed obliquely from below in the indoor unit of the air conditioner according to embodiment 1 of the present invention.
Fig. 6 is a perspective view of an inlet portion of a dew-water hole as viewed from above the side portion of an indoor unit of an air conditioner according to embodiment 2 of the present invention.
In the figure:
1-indoor set of air conditioner, 3-heat exchanger, 4-fan, 5-catch dew dish, 11-dew hole, 12-step portion, 31-slope portion, a-height of step portion, b-radius size of dew hole.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(example 1)
Fig. 1 is a cross-sectional view of an indoor unit of an air conditioner according to embodiment 1 of the present invention. In fig. 1 and the following drawings, directions of front, rear, left, right, up and down (front is an indoor side) when an indoor unit of an air conditioner is installed indoors are appropriately indicated by arrows.
In fig. 1, an indoor unit 1 of an air conditioner includes a casing 2 accommodating a heat exchanger 3. The heat exchanger 3 performs heat exchange between the indoor air and the refrigerant. A fan 4 is provided below the heat exchanger 3 having a substantially inverted V-shaped longitudinal section, and circulates indoor air to the heat exchanger 3. A filter 7 is provided between the tank 2 and the heat exchanger 3. Dew receiving pans 5, 6 are provided under the front lower end 3a and the rear lower end 3b of the heat exchanger 3, respectively. An indoor unit 1 of an air conditioner is connected to an outdoor unit, not shown, and operates as an air conditioner.
Fig. 2 is a perspective view showing the leak receiving tray 5. The dew condensation receiving tray 5 includes a dew condensation receiving tray main body 5 a. The dew condensation receiving pan main body 5a receives dew condensation water dropped from the heat exchanger 3. The dew receiving tray main body 5a is provided in the front of the lower portion of the case 2 and extends in the left-right direction. The leak receiver 5 includes a leak receiver flow path 5b as a dew-water flow path connected to the leak receiver main body 5a and extending rearward of the casing 2 at left and right end portions of the indoor unit 1. A dew-water hole 11 (the left dew-water hole 11 is not shown) for discharging dew-water to the outside is provided at the rearmost part of the dew condensation pan flow path 5 b. A hose, not shown, is connected to the dew-water hole 11 to discharge dew-water to the outside. Thus, the dew water dropped on the dew condensation point main body 5a flows through the dew condensation point main body 5a and the dew condensation point flow path 5b and is discharged from the dew condensation hole 11. The horizontal air vanes 8 are members for changing the direction of the air blown out by the indoor unit 1 in the horizontal direction.
When the cold dew-water collects in the dew-water hole 11, the vicinity of the inlet of the dew-water hole 11 is cooled, and dew condensation may occur in the dew condensation pan flow path 5b in the vicinity of the dew-water hole 11. The shape of the inlet portion of the dew-water hole 11 where dew condensation is less likely to occur in the dew condensation pan flow passage 5b will be described below.
Fig. 3 is a perspective view of the inlet portion of the water exposure hole 11 viewed from above the side portion. The pipe portion 14 is connected to the rear wall surface 5b1 of the dew condensation pan flow path 5b and projects outward. The tube portion 14 is formed with a radial circular hole, i.e., a dew-water hole 11. The dew-water flows through the bottom 5b2 of the dew condensation receiving pan flow path 5b and is discharged from the dew-water hole 11. At least a part of the lower side of the dew-water inlet portion 13 of the dew-water hole 11 in the gravity direction is formed as a stepped portion 12 from the bottom portion 5b2 of the dew-receiving tray 5 and is higher than the bottom portion 5b2 of the dew-receiving tray flow passage 5 b. As shown in fig. 5 described later, the pipe portion 14 descends toward the outer distal end portion side (the same applies to the example of fig. 6 described later).
In example 1, the inlet portion 13 of the dew-water hole 11 is cut out in a shape with the upper side in the gravity direction, and stepped portions 12 having a trapezoidal shape are formed on both sides in the longitudinal direction of the dew-water hole 11 on the lower side in the gravity direction. Specifically, the stepped portion 12 is connected to both sides of the distal end portion of the tube portion 14 on the leak tray flow path 5b side, which is cut in a direction at an acute angle to the longitudinal direction. However, the tip end of the pipe portion 14 does not protrude from the end surface 12a of the stepped portion 12 on the leak tray flow path 5b side. That is, the distal end portion of the tube portion 14 on the leak pad flow path 5b side is cut off in the longitudinal direction by the end surface 12a of the stepped portion 12. Both sides of the stepped portion 12 are connected to both side portions 5b3 of the dew condensation pan flow passage 5b (however, one of the two side portions 5b3 is not shown in fig. 3). The plate 12b forming the upper surface of the step portion 12 is provided at a predetermined interval from the bottom portion 5b2 of the dew condensation pan flow path 5 b.
As a method of providing the thickness below the inlet portion 13 of the dew-water hole 11, a method other than providing the stepped portion 12 may be considered. For example, it is also conceivable to make the bottom 11a of the dew-water inlet portion 13 of the dew-water hole 11 have a thickness. However, in this case, the thickness may block the water leakage hole 11. It is also conceivable to provide the bottom 11a with a thickness on the back surface of the exposure pan 5. However, this method may cause a problem that a part of the rear surface of the exposure pan 5 protrudes downward. For these reasons, the step portion 12 is preferably provided as described above.
As shown in fig. 3, the height a of the step portion 12 from the bottom portion 5b2 of the dew condensation pan flow path 5b is smaller than the radial dimension b of the dew condensation hole 11.
Next, the operation and effect of embodiment 1 will be explained.
Fig. 4 is a perspective view of the dew condensation pan flow path 5b as viewed from obliquely above, and fig. 5 is a perspective view of the dew condensation pan flow path 5b as viewed from obliquely below. The dew condensation receiving pan main body 5a receives dew water from the heat exchanger 3 (see fig. 2). The dew-water flows in the dew condensation pan flow path 5b in the direction of arrow c and is discharged from the dew-water hole 11.
At this time, low-temperature dew-water is concentrated on the dew-water inlet portion 13 of the dew-water hole 11, but a stepped portion 12 is formed at the dew-water inlet portion 13. Therefore, the portion 21 directly below the stepped portion 12 shown in fig. 5 is not cooled excessively, and dew condensation is less likely to occur. Thus, by preventing excessive cooling of the portion 21, excessive cooling around the portion 21 can be alleviated, and dew condensation is less likely to occur.
The height a of the stepped portion 12 from the bottom 5b2 of the dew condensation pan flow path 5b is smaller than the radial dimension b of the dew condensation hole 11. Therefore, the stepped portion 12 is not excessively large, and the volume of the leak tray flow path 5b can be suppressed from being reduced by the volume of the stepped portion 12.
(example 2)
In example 2, the components and the like common to those in example 1 are appropriately omitted from illustration and description, and the same reference numerals as those in example 1 are used. Fig. 6 is a perspective view of the inlet portion of the water exposure hole 11 as viewed from above the side in embodiment 2. Embodiment 2 is different from embodiment 1 in that the step portion 12 is provided with an inclined portion 31 inclined upward toward the top of the step portion 12 in the direction in which dew-water flows. The top of the inclined portion 31 is the same height as the top of the stepped portion 12, and the inclined portion 31 and the stepped portion 12 are joined. By providing the inclined portion 31 in the step portion 12, a part of the dew-water hole 11 is formed also in the step portion 12, and the entrance of the dew-water hole 11 is formed in a substantially elliptical shape. Both sides of the inclined portion 31 are connected to both sides 5b3 of the dew condensation pan flow passage 5b (in fig. 6, one side 5b3 is not shown) in the same manner as the stepped portion 12.
Next, the operation and effect of embodiment 2 will be explained. The operational effects common to those of example 1 will be appropriately omitted.
The inclined portion 31 is inclined upward toward the top of the stepped portion 12 in the direction in which dew-water flows. Therefore, the foreign matter mixed in with the dew water can be prevented from staying at the step portion 12. Since the foreign matter is hard to stay by the inclined portion 31, the foreign matter flows to the dew-water hole 11 together with the flow of dew-water.
Although not shown in fig. 6, the height of the step portion 12 from the bottom portion 5b2 of the dew condensation point plate flow path 5b is smaller than the radial dimension of the dew condensation hole 11, as in example 1. Therefore, the stepped portion 12 is not excessively large, and the volume of the leak tray flow path 5b can be suppressed from being reduced by the volume of the stepped portion 12.
The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are examples described in detail to explain the present invention easily and understandably, and are not limited to having all the configurations described. Further, a part of the structure of the embodiment may be replaced with another structure, and another structure may be added to the structure of the embodiment. In addition, a part of each configuration can be added, deleted, or replaced with another configuration.
The characteristic structure applied to the above-described drip pan 5 can also be applied to the drip pan 6.
Claims (4)
1. An indoor unit of an air conditioner, comprising:
a heat exchanger that performs heat exchange between indoor air and refrigerant;
a fan configured to circulate the indoor air to a heat exchanger;
a dew receiving pan that receives dew from the heat exchanger; and
a dew-water hole provided in the dew-water receiving tray and discharging the dew-water to the outside,
at least a part of the inlet part of the dew water hole at the lower side in the gravity direction forms a step part and is higher than the bottom of the dew receiving tray.
2. An indoor unit of an air conditioner according to claim 1,
the inlet of the dew-water hole is cut off at the upper side in the gravity direction, and the step part is formed at the two sides of the dew-water hole at the lower side in the gravity direction in the long side direction.
3. The indoor unit of an air conditioner according to claim 1 or 2,
the step portion includes an inclined portion inclined upward toward a top portion of the step portion in a direction in which the dew flows,
the inclined portions are formed from the end portions of the two side portions of the dew receiving tray through which the dew flows to the end portions.
4. An indoor unit of an air conditioner according to any one of claims 1 to 3,
the height of the step part from the bottom of the dew receiving tray is smaller than the radius of the dew hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018178689A JP6685358B2 (en) | 2018-09-25 | 2018-09-25 | Air conditioner indoor unit |
| JP2018-178689 | 2018-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110939983A true CN110939983A (en) | 2020-03-31 |
Family
ID=69905708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910176186.9A Pending CN110939983A (en) | 2018-09-25 | 2019-03-08 | Indoor unit of air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6685358B2 (en) |
| CN (1) | CN110939983A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021210115A1 (en) * | 2020-04-16 | 2021-10-21 | 三菱電機株式会社 | Indoor unit of air conditioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6340111B1 (en) * | 2017-04-28 | 2018-06-06 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner indoor unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001317760A (en) * | 2000-05-09 | 2001-11-16 | Funai Electric Co Ltd | Air conditioner |
| JP4585377B2 (en) * | 2005-06-02 | 2010-11-24 | 東芝キヤリア株式会社 | Air conditioner |
-
2018
- 2018-09-25 JP JP2018178689A patent/JP6685358B2/en active Active
-
2019
- 2019-03-08 CN CN201910176186.9A patent/CN110939983A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6340111B1 (en) * | 2017-04-28 | 2018-06-06 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner indoor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6685358B2 (en) | 2020-04-22 |
| JP2020051641A (en) | 2020-04-02 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200331 |
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| RJ01 | Rejection of invention patent application after publication |