WO2017022024A1 - Indoor unit of air conditioners - Google Patents
Indoor unit of air conditioners Download PDFInfo
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- WO2017022024A1 WO2017022024A1 PCT/JP2015/071844 JP2015071844W WO2017022024A1 WO 2017022024 A1 WO2017022024 A1 WO 2017022024A1 JP 2015071844 W JP2015071844 W JP 2015071844W WO 2017022024 A1 WO2017022024 A1 WO 2017022024A1
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- WIPO (PCT)
- Prior art keywords
- air
- drain pan
- indoor unit
- heat exchanger
- housing
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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
Definitions
- the present invention relates to an indoor unit of a wall-mounted air conditioner installed on the wall surface of an air-conditioning target area, and particularly relates to the shape of a drain pan.
- Patent Document 1 Among indoor units of wall-mounted air conditioners that are installed on the wall surface of an air-conditioning target area, there is an indoor unit that achieves high performance (for example, see Patent Document 1).
- the indoor unit described in Patent Document 1 improves the heat exchange efficiency by increasing the air passing through the heat exchanger in the main body, that is, by increasing the heat exchange area, thereby achieving high performance.
- the air passing through the heat exchanger is cooled, and condensed water adheres to the surface of the heat exchanger.
- the condensed water is collected in a drain pan disposed below the heat exchanger, and then drained to the outside through a drain hose.
- the drain pan is provided with a wall so that the collected condensed water does not overflow.
- the wall portion covers the lower end portion of the heat exchanger, and becomes a resistance of air that tries to pass through the lower end portion of the heat exchanger. Therefore, if the lower end of the heat exchanger is positioned above the wall, there is no air resistance to the lower end of the heat exchanger, but a gap is created between the lower end of the heat exchanger and the bottom of the drain pan. Air that does not pass through the exchanger is generated. If it does so, there existed a subject that the cold air heat-exchanged in the fan vicinity mixed with the warm moist air which is not heat-exchanged, and caused condensation.
- the present invention has been made to solve the above-described problems, and provides an indoor unit of an air conditioner that can increase the air passing through the lower end of the heat exchanger while suppressing the occurrence of condensation.
- the purpose is to do.
- An indoor unit of an air conditioner includes a housing in which an air inlet for sucking indoor air into the interior and an air outlet for supplying conditioned air to an air-conditioning target area are formed, and the interior of the housing
- a blower fan that sucks room air from the suction port and blows conditioned air from the blower outlet, and is disposed inside the housing so that the longitudinal direction is the left-right direction when viewed from the front,
- a heat exchanger that creates conditioned air by exchanging heat with room air; and a drain pan that is provided below a lower end portion of the heat exchanger and collects condensed water.
- the drain pan includes the heat exchanger.
- a wall portion is provided along the longitudinal direction, and a notch portion having an obtuse angle on the lower angle side is provided at the upper end portion of the wall portion.
- a notch portion having an obtuse angle on the minor angle side of the notch portion is provided on the wall portion provided along the longitudinal direction of the heat exchanger. Therefore, air passing through the lower end of the heat exchanger can be increased while suppressing the occurrence of condensation.
- FIG. 1 It is an external appearance perspective view which shows the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a longitudinal section showing the indoor unit of the air harmony machine concerning an embodiment of the invention. It is the perspective view which looked at the drain pan used for the indoor unit of the air conditioner which concerns on embodiment of this invention from the back side. It is the perspective view which looked at the drain pan used for the indoor unit of the air conditioner which concerns on embodiment of this invention from the side surface side. It is a front view which shows typically the drain pan and heat exchanger which are used for the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a front view which shows typically the drain pan and heat exchanger which are used for the indoor unit of the conventional air conditioner.
- FIG. 1 is an external perspective view showing an air conditioner indoor unit 100 according to an embodiment of the present invention
- FIG. 2 is a longitudinal sectional view showing the air conditioner indoor unit 100 according to an embodiment of the present invention
- FIG. FIG. 2 shows the left side of the drawing as the front side of the indoor unit 100.
- terms for indicating directions for example, “up”, “down”, “right”, “left”, “front”, “back”, etc.
- “up”, “down”, “right”, “left”, “front”, and “rear” are used when the indoor unit 100 is viewed from the front.
- the indoor unit 100 supplies conditioned air to an air-conditioning target area such as a room by using a refrigeration cycle that circulates a refrigerant.
- an example is shown in which the indoor unit 100 is a wall-mounted type that is attached to the wall surface of the air-conditioning target area.
- the indoor unit 100 includes a rear case 1 that is attached to a wall surface and a housing 6 that is attached to the front surface of the rear case 1.
- a suction port 12 for sucking into the interior and an outlet 5 for supplying conditioned air to the air-conditioning target area are formed.
- a front design panel 7 that can be opened and closed is attached to the front surface of the housing 6.
- a longitudinal direction is provided in the blower fan 3 that sucks room air from the suction port 12 and blows conditioned air from the blowout port 5, and the air path from the suction port 12 to the blowout port 5
- the heat exchanger 2 is disposed so that the direction is the left-right direction, and produces conditioned air by exchanging heat between the refrigerant and room air. And the air flow path is connected in the housing
- the housing 6 further includes an electrical component box (not shown) that accommodates a circuit board and the like, and a drain pan 20 that is provided below the lower end of the heat exchanger 2 and collects condensed water from the heat exchanger 2. It is equipped with. The drain pan 20 will be described in detail later.
- the suction port 12 is formed in the upper part of the housing 6.
- the air outlet 5 is formed in the lower part of the housing 6, more specifically, at the lower side of the front surface of the housing 6.
- the blower fan 3 is disposed on the downstream side of the suction port 12 and on the upstream side of the heat exchanger 2, and is constituted by, for example, an axial fan or a diagonal fan.
- the heat exchanger 2 is formed in an inverted V shape or ⁇ shape in the right vertical section, and is disposed on the leeward side of the blower fan 3.
- a fin tube heat exchanger may be used as the heat exchanger 2.
- the suction port 12 is provided with a finger guard and a filter (not shown).
- the blower outlet 5 is provided with an up / down air direction adjusting plate 8 for controlling the blowing direction of the airflow.
- the heat exchanger 2 does not have to be strictly an inverted V shape or ⁇ shape in the right vertical section.
- the blower fan 3 is not limited to the one disposed on the upstream side of the heat exchanger 2, and may be configured by a cross flow fan or the like disposed on the downstream side of the heat exchanger 2.
- room air flows into the indoor unit 100 from the suction port 12 formed in the upper part of the housing 6 by the blower fan 3. At this time, dust contained in the air is removed by a filter (not shown).
- This indoor air is heated or cooled by the refrigerant that is conducted through the heat exchanger 2 when passing through the heat exchanger 2 to become conditioned air.
- the conditioned air is blown out of the indoor unit 100 from the blowout port 5 formed in the lower part of the housing 6, that is, to the air-conditioning target area.
- FIG. 3 is a perspective view of drain pan 20 used in indoor unit 100 of the air conditioner according to the embodiment of the present invention as viewed from the back side
- FIG. 4 is an air conditioner according to the embodiment of the present invention. It is the perspective view which looked at the drain pan 20 used for this indoor unit 100 from the side.
- the drain pan 20 is disposed below the lower end portion of the heat exchanger 2 and collects condensed water adhering to the heat exchanger 2 during the cooling operation of the indoor unit 100, and has the configuration shown in FIGS. ing.
- the drain pan 20 includes a front drain pan 20a disposed below the front lower end of the heat exchanger 2 and a rear drain pan 20b disposed below the rear lower end of the heat exchanger 2.
- the front drain pan 20a and the rear drain pan 20b are provided with a wall portion 21 having a certain height in the front-rear direction and the left-right direction of the upper portion in order to prevent the collected condensed water from overflowing.
- the upper part is open.
- the front drain pan 20a and the rear drain pan 20b are connected to each other in the longitudinal direction, that is, the left and right side portions 20c.
- the connection part 22 to which a drain hose (not shown) is connected is each protrudingly provided in the right-and-left side part 20c of the drain pan 20, The drainage for draining dew condensation water in these connection parts 22 Each hole 23 is formed.
- the condensed water adhering to the heat exchanger 2 is recovered by the front drain pan 20a and the rear drain pan 20b, and the recovered condensed water is connected to the housing through the drain hole 23 of the connection portion 22 and the drain hose. It is configured to be discharged to the outside of the body 6.
- the drain holes 23 are formed in the left and right side portions 20c of the drain pan 20, respectively, in order to be able to determine which drain hole 23 is used according to the environment in which the indoor unit 100 is installed. It is. Then, a drain hose (not shown) is connected to the drain hole 23 that is used, and a cap (not shown) is attached to the drain hole 23 that is not used so that the condensed water does not leak from there. .
- the front drain pan 20a and the rear drain pan 20b are integrally formed.
- the present invention is not limited thereto, and may be separate from each other.
- FIG. 5 is a front view schematically showing the drain pan 20 and the heat exchanger 2 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention
- FIG. 6 is a diagram of the indoor of the conventional air conditioner. It is a front view showing typically drain pan 30 and heat exchanger 32 used for a machine. In FIGS. 5 and 6, the hidden portion of the heat exchanger as viewed from the front side is indicated by a dotted line.
- drain pan 20 will be described as having only one of the front drain pan 20a and the rear drain pan 20b, but the contents are the same when both are provided.
- the wall portion 21 is provided along the left-right direction of the indoor unit 100, that is, along the longitudinal direction of the heat exchanger 2, and the front side (hereinafter referred to as the front wall) of the longitudinal wall portion 21.
- a cutout portion 24 that is cut into a V shape is provided at the center upper end portion 21au of the central portion 21a).
- the angle 26 of the minor angle side of the notch part 24 provided in the front wall part 21a of the drain pan 20 is an obtuse angle.
- the air passage that is, the wall portion 21 that is orthogonal to the air flow becomes a resistance of the air that tries to pass through the lower end portion of the heat exchanger 2, and as shown in FIG.
- the resistance of air that attempts to pass through the lower end portion of the heat exchanger 32 also increases.
- a V-shaped cutout 24 is formed on the upper end 21 au of the front wall 21 a, which is one of the walls 21 orthogonal to the air path, that is, the air flow. Is provided.
- the notch 24 may not be strictly V-shaped, such as U-shaped. Moreover, the notch part 24 may be provided in the rear side of the wall part 21 of the longitudinal side orthogonal to the flow of air, and if it is provided in at least one of the front side and the rear side of the wall part 21, it will be described above. The effect of can be obtained.
- the indoor unit 100 is usually installed so that the housing 6 is horizontal.
- the drain pan 20 is provided so that the drain pan 20 is also horizontal when the casing 6 of the indoor unit 100 is installed so as to be horizontal.
- it may be installed with an inclination of about 0.5 ° with respect to the horizontal so that the drain hole 23 to be used is on the lower side.
- It may be installed with an inclination so that the drainage hole 23 on the upper side is on the upper side.
- the drain holes 23 are provided not only on one side of the drain pan 20 but also on the left and right sides, there is a high possibility that the direction in which the indoor unit 100 is inclined during installation will be wrong. For this reason, it is necessary to prevent the condensed water from overflowing from the drain pan 20 even when an installation error occurs.
- the drain pan 20 has a structure in which condensed water does not overflow even when the casing 6 of the indoor unit 100 is installed at an allowable angle with respect to the horizontal. Further, the heat exchange efficiency is improved as much as possible.
- the allowable angle is an angle at which the inclination of the casing 6 of the indoor unit 100 with respect to the horizontal is allowed when the indoor unit 100 is installed, and is determined in a range in which condensed water does not overflow from the drain pan 20.
- the allowable angle of the inclination of the housing 6 with respect to the horizontal is about 2 ° at the maximum on the left and right. This is because in a general indoor unit with a lateral width of about 800 mm, the dew condensation water does not overflow from the drain pan, and when it is tilted 2 °, the difference in height between the left and right is about 28 mm. This is because it can be clearly seen that it is inclined.
- FIG. 7 is a front view schematically showing the drain pan 20 when the casing 6 of the indoor unit 100 of the air conditioner according to the embodiment of the present invention is installed inclined to the left of the allowable angle with respect to the horizontal.
- FIG. 8 is a front view schematically showing the drain pan 20 when the casing 6 of the indoor unit 100 of the air conditioner according to the embodiment of the present invention is installed inclined to the right side at an allowable angle with respect to the horizontal. is there. 7 and 8, the drainage holes 23 hidden from the front side are indicated by dotted lines. Further, the shaded portion indicates the condensed water accumulated in the drain pan 20.
- the structure of the drain pan 20 that improves the heat exchange efficiency while preventing the condensed water from overflowing even when the casing 6 of the indoor unit 100 is installed at an allowable angle with respect to the horizontal will be described.
- the casing 6 of the indoor unit 100 When the casing 6 of the indoor unit 100 is installed to be tilted to the left or right of the allowable angle with respect to the horizontal, that is, in a state where the drain pan 20 is tilted to the left or right of the allowable angle with respect to the horizontal, FIG. 8 and 8, in the vertical direction, the lowest position at the upper end 21au of the front wall 21a, that is, the position where the condensed water overflows from the wall 21 is the upper side of the left and right drain holes 23.
- the front wall portion 21a is provided so as to be higher than the position of the lower end portion 23l of the drain hole 23, that is, the position where the condensed water is discharged.
- the front wall portion 21a is a position where the dew condensation water overflows from the drain pan 20. Since the lowest position is a position higher than the water surface 25, it is possible to prevent the condensed water from overflowing from the wall portion 21.
- the lower end 23l of the drainage hole 23 on the upper side of the left and right drainage holes 23 is so that the dew condensation water can be used regardless of which drainage hole 23 is used. This is because the lowest position of the front wall portion 21 a that overflows is a position higher than the water surface 25.
- FIG. 9 is a first front view schematically showing the drain pan 20 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention.
- the drainage holes 23 hidden from the front side are indicated by dotted lines.
- the lower end portion 23l of the left drain hole 23 that is, the position where the condensed water is discharged
- the upper end portion of the right side portion 20c The two-dimensional line connecting the lowest position 20cl, that is, the position where the condensed water overflows (dotted line 27 in FIG. 9), and the lower end portion 23l of the right drain hole 23, that is, the position where the condensed water is discharged.
- the top portion 24a whose lowest point is the intersection of the lowest position 20cl at the upper end portion of the left side portion 20c, that is, the line (dotted line 28 in FIG. 9) connecting two-dimensionally with the position where the condensed water overflows,
- a V-shaped cutout 24 is provided in the front wall 21a.
- the upper end portion of the right side portion 20c is the upper end portion of the wall portion 21 located on the short side and located on the right side, and the upper end portion on the right side of the wall portion 21 located on the long side and located on the front side and rear side.
- the upper end portion of the left side portion 20c is the short side and the upper end portion of the wall portion 21 located on the left side, and the long side and the wall portion 21 located on the front side and the rear side. It is the upper end of the left side.
- the intersection point is assumed to be two-dimensional instead of three-dimensional, and the lowest position 20cl at the lower end of the left drain hole 23 and the upper end of the right side 20c, or the right drain hole 23. Even if the lowest position 20cl at the upper end of the left side part 20c is different in the front-rear direction, it is considered that they are at the same position. That is, it is assumed that all of these positions are on the same plane.
- the intersection is surrounded by a line connecting the lowest position 20cl at the upper end of the right side 20c and the lowest position 20cl at the upper end of the left side 20c.
- the drain pan 20 is inclined at an allowable angle, it is a portion that does not become lower than the lower end portion 23l of the drainage hole 23 located on the upper side of the left and right drainage holes 23. It is a range where the condensed water does not overflow, that is, a range where it can be cut out. Therefore, by providing the notch portion 24 in the front wall portion 21a so that the intersection is the top portion 24a, the notch amount can be maximized within a range in which the condensed water does not overflow.
- FIG. 10 is a second front view schematically showing the drain pan 20 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention.
- the dotted line shown in FIG. 10 has shown the notch part 24 provided in the upper end part 21au of the front wall part 21a which is hidden seeing from the front side.
- the angle 26 on the inferior angle side of the cutout portion 24 provided in the front wall portion 21 a of the drain pan 20 is an obtuse angle.
- the notch 24 is provided in the upper end portion 21au of the front wall portion 21a, the height of the front wall portion 21a is lowered depending on the position. Even when tilted, it is necessary to prevent the condensed water from overflowing from the notch 24. Further, if the angle 26 on the inferior angle side of the cutout portion 24 is increased as much as possible, that is, the cutout amount is increased, the air passing through the lower end portion of the heat exchanger 2 can be increased, and the heat exchange efficiency is improved. The effect that can be obtained more.
- the cutout amount can be increased as much as possible within a range in which the condensed water does not overflow from the cutout portion 24.
- the drain pan 20 which concerns on this Embodiment, reducing the resistance of the air which passes the lower end part of the heat exchanger 2, suppressing generation
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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
This indoor unit of air conditioners is equipped with: a housing which is formed with a suction port for sucking indoor air into the housing and a blowout port for supplying air-conditioning air to a region to be air-conditioned; a blower fan which is provided within the housing, sucks indoor air through the suction port and blows out air-conditioning air through the blowout port; a heat exchanger which is disposed within the housing in such a manner that the longitudinal axis is situated horizontally in a front view, and performs heat exchange between a refrigerant and indoor air to generate air-conditioning air; and a drain pan which is provided below the lower end of the heat exchanger and recovers dew condensation water. The drain pan is equipped with a wall portion along the longitudinal direction of the heat exchanger, the upper end of the wall portion being provided with a notch portion where the inferior angle is obtuse.
Description
本発明は、空調対象域の壁面に据え付けられる壁掛け型の空気調和機の室内機に関するものであり、特にドレンパンの形状に関するものである。
The present invention relates to an indoor unit of a wall-mounted air conditioner installed on the wall surface of an air-conditioning target area, and particularly relates to the shape of a drain pan.
空調対象域の壁面に据え付けられる壁掛け型の空気調和機の室内機において、高性能化を図った室内機がある(例えば、特許文献1参照)。
特許文献1に記載の室内機は、本体内部に有する熱交換器を通る空気を増やすことにより、つまり、熱交換面積を大きくすることにより熱交換効率を向上させ、高性能化を図っている。 Among indoor units of wall-mounted air conditioners that are installed on the wall surface of an air-conditioning target area, there is an indoor unit that achieves high performance (for example, see Patent Document 1).
The indoor unit described inPatent Document 1 improves the heat exchange efficiency by increasing the air passing through the heat exchanger in the main body, that is, by increasing the heat exchange area, thereby achieving high performance.
特許文献1に記載の室内機は、本体内部に有する熱交換器を通る空気を増やすことにより、つまり、熱交換面積を大きくすることにより熱交換効率を向上させ、高性能化を図っている。 Among indoor units of wall-mounted air conditioners that are installed on the wall surface of an air-conditioning target area, there is an indoor unit that achieves high performance (for example, see Patent Document 1).
The indoor unit described in
冷房運転時などでは、熱交換器を通る空気が冷却され、熱交換器表面に結露水が付着する。この結露水は、熱交換器の下方に配置されているドレンパンに捕集された後、ドレンホースを通って室外に排水される。このドレンパンには、捕集された結露水が溢れでないように、壁部が設けられている。
During cooling operation, the air passing through the heat exchanger is cooled, and condensed water adheres to the surface of the heat exchanger. The condensed water is collected in a drain pan disposed below the heat exchanger, and then drained to the outside through a drain hose. The drain pan is provided with a wall so that the collected condensed water does not overflow.
従来の空気調和機の室内機が有するドレンパンにおいて、その壁部は熱交換器の下端部を覆っており、熱交換器の下端部を通過しようとする空気の抵抗となる。そこで、熱交換器の下端部を壁部より上方に位置させると熱交換器の下端部への空気抵抗はなくなるが、熱交換器の下端部とドレンパンの底部との間に隙間が生じ、熱交換器を通過しない空気が発生してしまう。そうすると、ファン付近で熱交換された冷たい空気と、熱交換されていない温かい湿った空気とが混じり合い、結露の原因となってしまうという課題があった。
In the drain pan of a conventional air conditioner indoor unit, the wall portion covers the lower end portion of the heat exchanger, and becomes a resistance of air that tries to pass through the lower end portion of the heat exchanger. Therefore, if the lower end of the heat exchanger is positioned above the wall, there is no air resistance to the lower end of the heat exchanger, but a gap is created between the lower end of the heat exchanger and the bottom of the drain pan. Air that does not pass through the exchanger is generated. If it does so, there existed a subject that the cold air heat-exchanged in the fan vicinity mixed with the warm moist air which is not heat-exchanged, and caused condensation.
本発明は、以上のような課題を解決するためになされたもので、結露の発生を抑制しつつ、熱交換器の下端部を通過する空気を増やすことができる空気調和機の室内機を提供することを目的としている。
The present invention has been made to solve the above-described problems, and provides an indoor unit of an air conditioner that can increase the air passing through the lower end of the heat exchanger while suppressing the occurrence of condensation. The purpose is to do.
本発明に係る空気調和機の室内機は、室内空気を内部に吸い込むための吸込口と空調空気を空調対象域に供給するための吹出口とが形成された筐体と、前記筐体の内部に設けられ、前記吸込口から室内空気を吸い込み、前記吹出口から空調空気を吹き出す送風ファンと、正面視して長手方向が左右方向となるように前記筐体の内部に配設され、冷媒と室内空気とで熱交換することで空調空気を作り出す熱交換器と、前記熱交換器の下端部の下方に設けられ、結露水を回収するドレンパンと、を備え、前記ドレンパンは、前記熱交換器の長手方向に沿って壁部を備え、前記壁部の上端部に、劣角側の角度が鈍角である切り欠き部が設けられているものである。
An indoor unit of an air conditioner according to the present invention includes a housing in which an air inlet for sucking indoor air into the interior and an air outlet for supplying conditioned air to an air-conditioning target area are formed, and the interior of the housing A blower fan that sucks room air from the suction port and blows conditioned air from the blower outlet, and is disposed inside the housing so that the longitudinal direction is the left-right direction when viewed from the front, A heat exchanger that creates conditioned air by exchanging heat with room air; and a drain pan that is provided below a lower end portion of the heat exchanger and collects condensed water. The drain pan includes the heat exchanger. A wall portion is provided along the longitudinal direction, and a notch portion having an obtuse angle on the lower angle side is provided at the upper end portion of the wall portion.
本発明に係る空気調和機の室内機によれば、熱交換器の長手方向に沿って設けられた壁部に、切り欠き部の劣角側の角度が鈍角である切り欠き部が設けられているため、結露の発生を抑制しつつ、熱交換器の下端部を通過する空気を増やすことができる。
According to the indoor unit for an air conditioner according to the present invention, a notch portion having an obtuse angle on the minor angle side of the notch portion is provided on the wall portion provided along the longitudinal direction of the heat exchanger. Therefore, air passing through the lower end of the heat exchanger can be increased while suppressing the occurrence of condensation.
以下、本発明の実施の形態を図面に基づいて説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。また、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one.
実施の形態.
図1は、本発明の実施の形態に係る空気調和機の室内機100を示す外観斜視図であり、図2は、本発明の実施の形態に係る空気調和機の室内機100を示す縦断面図である。
なお、図2は、図の左側を室内機100の前面側として示している。
また、以下の説明において、理解を容易にするために方向を表す用語(例えば「上」、「下」、「右」、「左」、「前」、「後」など)を適宜用いるが、これは説明のためのものであって、これらの用語は本願発明を限定するものではない。また、本実施の形態では、室内機100を正面視した状態において、「上」、「下」、「右」、「左」、「前」、「後」を使用する。 Embodiment.
FIG. 1 is an external perspective view showing an air conditionerindoor unit 100 according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing the air conditioner indoor unit 100 according to an embodiment of the present invention. FIG.
FIG. 2 shows the left side of the drawing as the front side of theindoor unit 100.
Further, in the following description, terms for indicating directions (for example, “up”, “down”, “right”, “left”, “front”, “back”, etc.) are used as appropriate for easy understanding. This is for explanation and these terms do not limit the present invention. In the present embodiment, “up”, “down”, “right”, “left”, “front”, and “rear” are used when theindoor unit 100 is viewed from the front.
図1は、本発明の実施の形態に係る空気調和機の室内機100を示す外観斜視図であり、図2は、本発明の実施の形態に係る空気調和機の室内機100を示す縦断面図である。
なお、図2は、図の左側を室内機100の前面側として示している。
また、以下の説明において、理解を容易にするために方向を表す用語(例えば「上」、「下」、「右」、「左」、「前」、「後」など)を適宜用いるが、これは説明のためのものであって、これらの用語は本願発明を限定するものではない。また、本実施の形態では、室内機100を正面視した状態において、「上」、「下」、「右」、「左」、「前」、「後」を使用する。 Embodiment.
FIG. 1 is an external perspective view showing an air conditioner
FIG. 2 shows the left side of the drawing as the front side of the
Further, in the following description, terms for indicating directions (for example, “up”, “down”, “right”, “left”, “front”, “back”, etc.) are used as appropriate for easy understanding. This is for explanation and these terms do not limit the present invention. In the present embodiment, “up”, “down”, “right”, “left”, “front”, and “rear” are used when the
以下、図1および図2に基づいて、室内機100の構成について説明する。
本実施の形態に係る室内機100は、冷媒を循環させる冷凍サイクルを利用することで室内などの空調対象域に空調空気を供給するものである。なお、本実施の形態では、室内機100が空調対象域の壁面に取り付けられる壁掛け型である場合を例に示している。 Hereinafter, the configuration of theindoor unit 100 will be described with reference to FIGS. 1 and 2.
Theindoor unit 100 according to the present embodiment supplies conditioned air to an air-conditioning target area such as a room by using a refrigeration cycle that circulates a refrigerant. In the present embodiment, an example is shown in which the indoor unit 100 is a wall-mounted type that is attached to the wall surface of the air-conditioning target area.
本実施の形態に係る室内機100は、冷媒を循環させる冷凍サイクルを利用することで室内などの空調対象域に空調空気を供給するものである。なお、本実施の形態では、室内機100が空調対象域の壁面に取り付けられる壁掛け型である場合を例に示している。 Hereinafter, the configuration of the
The
室内機100は、図1に示すように、壁面に取り付けられる背面ケース1と、背面ケース1の前面に取り付けられた筐体6と、を有し、筐体6には、主に室内空気を内部に吸い込むための吸込口12と、空調空気を空調対象域に供給するための吹出口5とが形成されている。また、筐体6の前面には、開閉可能な前面意匠パネル7が取り付けられている。
As shown in FIG. 1, the indoor unit 100 includes a rear case 1 that is attached to a wall surface and a housing 6 that is attached to the front surface of the rear case 1. A suction port 12 for sucking into the interior and an outlet 5 for supplying conditioned air to the air-conditioning target area are formed. A front design panel 7 that can be opened and closed is attached to the front surface of the housing 6.
筐体6内には、図2に示すように、吸込口12から室内空気を吸い込み、吹出口5から空調空気を吹き出す送風ファン3と、吸込口12から吹出口5までの風路に、長手方向が左右方向となるように配設され、冷媒と室内空気とで熱交換することで空調空気を作り出す熱交換器2と、が収納されている。そして、これらの構成要素により筐体6内に空気流路が連通されている。また、筐体6内にはさらに、回路基板などを収容する図示省略の電気品箱と、熱交換器2の下端部の下方に設けられ、熱交換器2の結露水を回収するドレンパン20と、を備えている。なお、ドレンパン20については後で詳述する。
In the housing 6, as shown in FIG. 2, a longitudinal direction is provided in the blower fan 3 that sucks room air from the suction port 12 and blows conditioned air from the blowout port 5, and the air path from the suction port 12 to the blowout port 5 The heat exchanger 2 is disposed so that the direction is the left-right direction, and produces conditioned air by exchanging heat between the refrigerant and room air. And the air flow path is connected in the housing | casing 6 by these components. The housing 6 further includes an electrical component box (not shown) that accommodates a circuit board and the like, and a drain pan 20 that is provided below the lower end of the heat exchanger 2 and collects condensed water from the heat exchanger 2. It is equipped with. The drain pan 20 will be described in detail later.
吸込口12は、筐体6の上部に開口形成されている。吹出口5は、筐体6の下部で、より詳しくは、筐体6の前面部下側に開口形成されている。送風ファン3は、吸込口12の下流側でかつ、熱交換器2の上流側に配設されており、例えば軸流ファンまたは斜流ファンなどで構成されている。熱交換器2は、右側縦断面において逆V字形状またはΛ形状に形成されており、送風ファン3の風下側に配置されている。この熱交換器2には、例えばフィンチューブ型熱交換器などを用いるとよい。また、吸込口12には、図示省略のフィンガーガードおよびフィルターが設けられている。さらに、吹出口5には、気流の吹出し方向を制御する上下風向調整板8が設けられている。
The suction port 12 is formed in the upper part of the housing 6. The air outlet 5 is formed in the lower part of the housing 6, more specifically, at the lower side of the front surface of the housing 6. The blower fan 3 is disposed on the downstream side of the suction port 12 and on the upstream side of the heat exchanger 2, and is constituted by, for example, an axial fan or a diagonal fan. The heat exchanger 2 is formed in an inverted V shape or Λ shape in the right vertical section, and is disposed on the leeward side of the blower fan 3. For example, a fin tube heat exchanger may be used as the heat exchanger 2. The suction port 12 is provided with a finger guard and a filter (not shown). Furthermore, the blower outlet 5 is provided with an up / down air direction adjusting plate 8 for controlling the blowing direction of the airflow.
なお、熱交換器2は、右側縦断面において厳密に逆V字形状またはΛ形状でなくてもよい。また、送風ファン3は、熱交換器2の上流側に配設されるものに限定されず、熱交換器2の下流側に配設されるクロスフローファンなどで構成してもよい。
The heat exchanger 2 does not have to be strictly an inverted V shape or Λ shape in the right vertical section. Further, the blower fan 3 is not limited to the one disposed on the upstream side of the heat exchanger 2, and may be configured by a cross flow fan or the like disposed on the downstream side of the heat exchanger 2.
次に、室内機100内における空気の流れについて簡単に説明する。
まず、室内空気は、送風ファン3によって筐体6の上部に形成されている吸込口12から室内機100内に流れ込む。このとき、図示省略のフィルターによって空気に含まれている塵埃が除去される。この室内空気は、熱交換器2を通過する際に熱交換器2内を導通している冷媒によって加熱または冷却されて空調空気となる。そして、空調空気は、筐体6の下部に形成されている吹出口5から室内機100の外部、つまり空調対象域に吹き出されるようになっている。 Next, the flow of air in theindoor unit 100 will be briefly described.
First, room air flows into theindoor unit 100 from the suction port 12 formed in the upper part of the housing 6 by the blower fan 3. At this time, dust contained in the air is removed by a filter (not shown). This indoor air is heated or cooled by the refrigerant that is conducted through the heat exchanger 2 when passing through the heat exchanger 2 to become conditioned air. The conditioned air is blown out of the indoor unit 100 from the blowout port 5 formed in the lower part of the housing 6, that is, to the air-conditioning target area.
まず、室内空気は、送風ファン3によって筐体6の上部に形成されている吸込口12から室内機100内に流れ込む。このとき、図示省略のフィルターによって空気に含まれている塵埃が除去される。この室内空気は、熱交換器2を通過する際に熱交換器2内を導通している冷媒によって加熱または冷却されて空調空気となる。そして、空調空気は、筐体6の下部に形成されている吹出口5から室内機100の外部、つまり空調対象域に吹き出されるようになっている。 Next, the flow of air in the
First, room air flows into the
図3は、本発明の実施の形態に係る空気調和機の室内機100に用いられるドレンパン20を背面側から見た斜視図であり、図4は、本発明の実施の形態に係る空気調和機の室内機100に用いられるドレンパン20を側面側から見た斜視図である。
次に、本実施の形態に係るドレンパン20の構成について説明する。
ドレンパン20は、熱交換器2の下端部の下方に配置され、室内機100の冷房運転時に熱交換器2へ付着した結露水を回収するものであり、図3および図4に示す構成となっている。 FIG. 3 is a perspective view ofdrain pan 20 used in indoor unit 100 of the air conditioner according to the embodiment of the present invention as viewed from the back side, and FIG. 4 is an air conditioner according to the embodiment of the present invention. It is the perspective view which looked at the drain pan 20 used for this indoor unit 100 from the side.
Next, the configuration of thedrain pan 20 according to the present embodiment will be described.
Thedrain pan 20 is disposed below the lower end portion of the heat exchanger 2 and collects condensed water adhering to the heat exchanger 2 during the cooling operation of the indoor unit 100, and has the configuration shown in FIGS. ing.
次に、本実施の形態に係るドレンパン20の構成について説明する。
ドレンパン20は、熱交換器2の下端部の下方に配置され、室内機100の冷房運転時に熱交換器2へ付着した結露水を回収するものであり、図3および図4に示す構成となっている。 FIG. 3 is a perspective view of
Next, the configuration of the
The
ドレンパン20は、熱交換器2の前方下端部の下方に配置された前側ドレンパン20aと、熱交換器2の後方下端部の下方に配置された後側ドレンパン20bと、を備えている。前側ドレンパン20aおよび後側ドレンパン20bは、回収した結露水が溢れ出さないようにするため、上部の前後方向および左右方向にある程度の高さを有する壁部21が設けられており、平面視して、上部が開放された形状を有している。
The drain pan 20 includes a front drain pan 20a disposed below the front lower end of the heat exchanger 2 and a rear drain pan 20b disposed below the rear lower end of the heat exchanger 2. The front drain pan 20a and the rear drain pan 20b are provided with a wall portion 21 having a certain height in the front-rear direction and the left-right direction of the upper portion in order to prevent the collected condensed water from overflowing. The upper part is open.
また、前側ドレンパン20aおよび後側ドレンパン20bは、長手方向の両側部、つまり、左右の側部20cで接続されている。そして、ドレンパン20の左右の側部20cには、ドレンホース(図示せず)が接続される接続部22がそれぞれ突設されており、それら接続部22には、結露水を排水するための排水穴23がそれぞれ形成されている。このように、熱交換器2へ付着した結露水は前側ドレンパン20aおよび後側ドレンパン20bによって回収され、この回収された結露水は、接続部22の排水穴23、およびドレンホースを介して、筐体6の外部へ排出される構成となっている。
Further, the front drain pan 20a and the rear drain pan 20b are connected to each other in the longitudinal direction, that is, the left and right side portions 20c. And the connection part 22 to which a drain hose (not shown) is connected is each protrudingly provided in the right-and-left side part 20c of the drain pan 20, The drainage for draining dew condensation water in these connection parts 22 Each hole 23 is formed. As described above, the condensed water adhering to the heat exchanger 2 is recovered by the front drain pan 20a and the rear drain pan 20b, and the recovered condensed water is connected to the housing through the drain hole 23 of the connection portion 22 and the drain hose. It is configured to be discharged to the outside of the body 6.
なお、排水穴23がドレンパン20の左右の側部20cにそれぞれ形成されているのは、室内機100を据え付ける環境に応じて、どちらの排水穴23を使用するか決めることができるようにするためである。そして、使用する方の排水穴23にはドレンホース(図示せず)を接続し、使用しない方の排水穴23にはキャップ(図示せず)を取り付け、そこから結露水が漏れないようにする。
The drain holes 23 are formed in the left and right side portions 20c of the drain pan 20, respectively, in order to be able to determine which drain hole 23 is used according to the environment in which the indoor unit 100 is installed. It is. Then, a drain hose (not shown) is connected to the drain hole 23 that is used, and a cap (not shown) is attached to the drain hole 23 that is not used so that the condensed water does not leak from there. .
また、本実施の形態では、前側ドレンパン20aと後側ドレンパン20bとが一体形成されているが、それに限定されず、それぞれ別体としてもよい。
In the present embodiment, the front drain pan 20a and the rear drain pan 20b are integrally formed. However, the present invention is not limited thereto, and may be separate from each other.
図5は、本発明の実施の形態に係る空気調和機の室内機100に用いられるドレンパン20および熱交換器2を模式的に示す正面図であり、図6は、従来の空気調和機の室内機に用いられるドレンパン30および熱交換器32を模式的に示す正面図である。なお、図5および図6において、正面側から見て熱交換器の隠れている部分を点線で示している。
FIG. 5 is a front view schematically showing the drain pan 20 and the heat exchanger 2 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention, and FIG. 6 is a diagram of the indoor of the conventional air conditioner. It is a front view showing typically drain pan 30 and heat exchanger 32 used for a machine. In FIGS. 5 and 6, the hidden portion of the heat exchanger as viewed from the front side is indicated by a dotted line.
以下、ドレンパン20が前側ドレンパン20aおよび後側ドレンパン20bのうちいずれか一方のみを備えているものとして説明するが、両方備えている場合についても内容は同じである。
Hereinafter, the drain pan 20 will be described as having only one of the front drain pan 20a and the rear drain pan 20b, but the contents are the same when both are provided.
図5に示すように、壁部21は、室内機100の左右方向、つまり、熱交換器2の長手方向に沿って設けられており、その長手側の壁部21の前側(以下、前壁部21aとも称する)の中央の上端部21auには、V字形状に切り欠かれた切り欠き部24が設けられている。なお、後述するが、ドレンパン20の前壁部21aに設けられた切り欠き部24の劣角側の角度26は鈍角である。
As shown in FIG. 5, the wall portion 21 is provided along the left-right direction of the indoor unit 100, that is, along the longitudinal direction of the heat exchanger 2, and the front side (hereinafter referred to as the front wall) of the longitudinal wall portion 21. A cutout portion 24 that is cut into a V shape is provided at the center upper end portion 21au of the central portion 21a). In addition, although mentioned later, the angle 26 of the minor angle side of the notch part 24 provided in the front wall part 21a of the drain pan 20 is an obtuse angle.
ここで、風路、つまり空気の流れに直交する壁部21は、熱交換器2の下端部を通過しようとする空気の抵抗となるため、図6に示すように、従来のドレンパン30のように、その壁部31で熱交換器32の下端部を覆う面積が多いと、熱交換器32の下端部を通過しようとする空気の抵抗も大きくなる。
Here, the air passage, that is, the wall portion 21 that is orthogonal to the air flow becomes a resistance of the air that tries to pass through the lower end portion of the heat exchanger 2, and as shown in FIG. In addition, if the area covering the lower end portion of the heat exchanger 32 with the wall portion 31 is large, the resistance of air that attempts to pass through the lower end portion of the heat exchanger 32 also increases.
そこで、本実施の形態では、図5に示すように、風路、つまり空気の流れに直交する壁部21の一つである前壁部21aの上端部21auにV字形状の切り欠き部24を設ける。そうすることで、切り欠かれた部分を空気が通過するようになるため、熱交換器2の下端部を通過する空気の抵抗を減らし、熱交換器2の下端部を通過する空気を増やすことができるため、熱交換効率が向上するという効果を得ることができる。
Therefore, in the present embodiment, as shown in FIG. 5, a V-shaped cutout 24 is formed on the upper end 21 au of the front wall 21 a, which is one of the walls 21 orthogonal to the air path, that is, the air flow. Is provided. By doing so, since air passes through the notched portion, the resistance of the air passing through the lower end of the heat exchanger 2 is reduced, and the air passing through the lower end of the heat exchanger 2 is increased. Therefore, the effect that the heat exchange efficiency is improved can be obtained.
なお、切り欠き部24は、例えばU字形状など、厳密にV字形状でなくてもよい。また、切り欠き部24は、空気の流れに直交する長手側の壁部21の後側に設けられていてもよく、壁部21の前側および後側のうち少なくとも一方に設けられていれば上記の効果を得ることができる。
Note that the notch 24 may not be strictly V-shaped, such as U-shaped. Moreover, the notch part 24 may be provided in the rear side of the wall part 21 of the longitudinal side orthogonal to the flow of air, and if it is provided in at least one of the front side and the rear side of the wall part 21, it will be described above. The effect of can be obtained.
ここで、室内機100は、通常、筐体6が水平となるように設置される。なお、ドレンパン20は、室内機100の筐体6が水平となるように設置された場合は、ドレンパン20も水平となるように設けられている。ただし、設置業者によっては、使用する方の排水穴23が下側となるように、水平に対して0.5°程度の傾斜を付けて設置されることがあるが、その際に間違って使用する方の排水穴23が上側となるように傾斜を付けて設置されてしまうことがある。そして、排水穴23がドレンパン20の片側のみではなく、左右に設けられていることで、設置時に室内機100を傾ける方向を間違える可能性が高くなる。そのため、設置時の間違いが起きた場合でも、ドレンパン20から結露水が溢れ出さないようにする必要がある。
Here, the indoor unit 100 is usually installed so that the housing 6 is horizontal. The drain pan 20 is provided so that the drain pan 20 is also horizontal when the casing 6 of the indoor unit 100 is installed so as to be horizontal. However, depending on the installation contractor, it may be installed with an inclination of about 0.5 ° with respect to the horizontal so that the drain hole 23 to be used is on the lower side. It may be installed with an inclination so that the drainage hole 23 on the upper side is on the upper side. And since the drain holes 23 are provided not only on one side of the drain pan 20 but also on the left and right sides, there is a high possibility that the direction in which the indoor unit 100 is inclined during installation will be wrong. For this reason, it is necessary to prevent the condensed water from overflowing from the drain pan 20 even when an installation error occurs.
そこで、本実施の形態に係るドレンパン20は、室内機100の筐体6が水平に対して許容角度傾いて設置された場合でも、結露水が溢れ出さない構造になっている。また、できるだけ熱交換効率が向上する構造となっている。ここで、許容角度とは、室内機100の据え付け時に水平に対する室内機100の筐体6の傾きが許容される角度であり、ドレンパン20から結露水が溢れ出さない範囲で決定される。
Therefore, the drain pan 20 according to the present embodiment has a structure in which condensed water does not overflow even when the casing 6 of the indoor unit 100 is installed at an allowable angle with respect to the horizontal. Further, the heat exchange efficiency is improved as much as possible. Here, the allowable angle is an angle at which the inclination of the casing 6 of the indoor unit 100 with respect to the horizontal is allowed when the indoor unit 100 is installed, and is determined in a range in which condensed water does not overflow from the drain pan 20.
なお、通常、室内機100の設置時において、水平に対する筐体6の傾きの許容角度は左右とも最大2°程度である。なぜなら、筐体の横幅約800mmの一般的な室内機において、ドレンパンから結露水が溢れ出さない範囲であり、また、2°傾くと左右での高さの差は約28mmとなり、これは見た目で明らかに傾いていることが分かるためである。
Normally, when the indoor unit 100 is installed, the allowable angle of the inclination of the housing 6 with respect to the horizontal is about 2 ° at the maximum on the left and right. This is because in a general indoor unit with a lateral width of about 800 mm, the dew condensation water does not overflow from the drain pan, and when it is tilted 2 °, the difference in height between the left and right is about 28 mm. This is because it can be clearly seen that it is inclined.
図7は、本発明の実施の形態に係る空気調和機の室内機100の筐体6が水平に対して許容角度左側に傾いて設置された場合のドレンパン20を模式的に示す正面図であり、図8は、本発明の実施の形態に係る空気調和機の室内機100の筐体6が水平に対して許容角度右側に傾いて設置された場合のドレンパン20を模式的に示す正面図である。なお、図7および図8において、正面側から見て隠れている排水穴23を点線で示している。また、網掛けの部分は、ドレンパン20に溜まった結露水を示している。
以下、室内機100の筐体6が水平に対して許容角度傾いて設置された場合でも、結露水が溢れ出すのを防ぎつつ、熱交換効率を向上させたドレンパン20の構造について説明する。 FIG. 7 is a front view schematically showing thedrain pan 20 when the casing 6 of the indoor unit 100 of the air conditioner according to the embodiment of the present invention is installed inclined to the left of the allowable angle with respect to the horizontal. FIG. 8 is a front view schematically showing the drain pan 20 when the casing 6 of the indoor unit 100 of the air conditioner according to the embodiment of the present invention is installed inclined to the right side at an allowable angle with respect to the horizontal. is there. 7 and 8, the drainage holes 23 hidden from the front side are indicated by dotted lines. Further, the shaded portion indicates the condensed water accumulated in the drain pan 20.
Hereinafter, the structure of thedrain pan 20 that improves the heat exchange efficiency while preventing the condensed water from overflowing even when the casing 6 of the indoor unit 100 is installed at an allowable angle with respect to the horizontal will be described.
以下、室内機100の筐体6が水平に対して許容角度傾いて設置された場合でも、結露水が溢れ出すのを防ぎつつ、熱交換効率を向上させたドレンパン20の構造について説明する。 FIG. 7 is a front view schematically showing the
Hereinafter, the structure of the
室内機100の筐体6が水平に対して許容角度左側または許容角度右側に傾いて設置された場合、つまり、ドレンパン20が水平に対して許容角度左側または右側に傾いている状態において、図7および図8に示すように、鉛直方向において、前壁部21aの上端部21auで最も低い位置、つまり、壁部21から結露水が溢れ出す位置が、左右の排水穴23のうち、上側となる排水穴23の下端部23lの位置、つまり、結露水が排水され出す位置よりも高くなるように、前壁部21aが設けられている。
When the casing 6 of the indoor unit 100 is installed to be tilted to the left or right of the allowable angle with respect to the horizontal, that is, in a state where the drain pan 20 is tilted to the left or right of the allowable angle with respect to the horizontal, FIG. 8 and 8, in the vertical direction, the lowest position at the upper end 21au of the front wall 21a, that is, the position where the condensed water overflows from the wall 21 is the upper side of the left and right drain holes 23. The front wall portion 21a is provided so as to be higher than the position of the lower end portion 23l of the drain hole 23, that is, the position where the condensed water is discharged.
このようにすることで、室内機100の筐体6が水平に対して許容角度左側または許容角度右側に傾いて設置された場合において、ドレンパン20から結露水が溢れ出す位置である前壁部21aの最も低い位置が、水面25よりも高い位置となるため、壁部21から結露水が溢れ出さないようにできる。
By doing in this way, when the housing 6 of the indoor unit 100 is installed tilted to the left of the allowable angle or the right side of the allowable angle with respect to the horizontal, the front wall portion 21a is a position where the dew condensation water overflows from the drain pan 20. Since the lowest position is a position higher than the water surface 25, it is possible to prevent the condensed water from overflowing from the wall portion 21.
なお、上記において、左右の排水穴23のうち、上側となる排水穴23の下端部23lとしたのは、そうすることで、どちらの排水穴23を使用することになっても、結露水が溢れ出す位置である前壁部21aの最も低い位置が、水面25よりも高い位置となるためである。
In the above, the lower end 23l of the drainage hole 23 on the upper side of the left and right drainage holes 23 is so that the dew condensation water can be used regardless of which drainage hole 23 is used. This is because the lowest position of the front wall portion 21 a that overflows is a position higher than the water surface 25.
図9は、本発明の実施の形態に係る空気調和機の室内機100に用いられるドレンパン20を模式的に示す第一の正面図である。なお、図9および図10において、正面側から見て隠れている排水穴23を点線で示している。
また、ドレンパン20が水平な状態、つまり、水平に対して傾いていない状態において、左側の排水穴23の下端部23l、つまり、結露水が排水され出す位置と、右側の側部20cの上端部で最も低い位置20cl、つまり、結露水が溢れ出す位置とを二次元で結ぶ線(図9の点線27)と、右側の排水穴23の下端部23l、つまり、結露水が排水され出す位置と、左側の側部20cの上端部で最も低い位置20cl、つまり、結露水が溢れ出す位置とを二次元で結ぶ線(図9の点線28)と、の交点が最下点である頂部24aとなるように、前壁部21aにV字形状の切り欠き部24が設けられている。 FIG. 9 is a first front view schematically showing thedrain pan 20 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention. 9 and 10, the drainage holes 23 hidden from the front side are indicated by dotted lines.
Further, in the state where thedrain pan 20 is horizontal, that is, not inclined with respect to the horizontal, the lower end portion 23l of the left drain hole 23, that is, the position where the condensed water is discharged, and the upper end portion of the right side portion 20c. The two-dimensional line connecting the lowest position 20cl, that is, the position where the condensed water overflows (dotted line 27 in FIG. 9), and the lower end portion 23l of the right drain hole 23, that is, the position where the condensed water is discharged. The top portion 24a whose lowest point is the intersection of the lowest position 20cl at the upper end portion of the left side portion 20c, that is, the line (dotted line 28 in FIG. 9) connecting two-dimensionally with the position where the condensed water overflows, Thus, a V-shaped cutout 24 is provided in the front wall 21a.
また、ドレンパン20が水平な状態、つまり、水平に対して傾いていない状態において、左側の排水穴23の下端部23l、つまり、結露水が排水され出す位置と、右側の側部20cの上端部で最も低い位置20cl、つまり、結露水が溢れ出す位置とを二次元で結ぶ線(図9の点線27)と、右側の排水穴23の下端部23l、つまり、結露水が排水され出す位置と、左側の側部20cの上端部で最も低い位置20cl、つまり、結露水が溢れ出す位置とを二次元で結ぶ線(図9の点線28)と、の交点が最下点である頂部24aとなるように、前壁部21aにV字形状の切り欠き部24が設けられている。 FIG. 9 is a first front view schematically showing the
Further, in the state where the
なお、排水穴23において、ドレンパン20の内側と外側とで鉛直方向の位置が異なる場合、上記の結露水が排水され出す位置は、ドレンパン20の外側ではなく内側における下端部である。
In addition, in the drain hole 23, when the position in the vertical direction is different between the inside and the outside of the drain pan 20, the position where the condensed water is drained is not the outside of the drain pan 20, but the lower end portion inside.
ここで、右側の側部20cの上端部とは、短手側であり右側に位置する壁部21の上端部と、長手側であり前側および後側に位置する壁部21の右側の上端部のことであり、同様に、左側の側部20cの上端部とは、短手側であり左側に位置する壁部21の上端部と、長手側であり前側および後側に位置する壁部21の左側の上端部のことである。
Here, the upper end portion of the right side portion 20c is the upper end portion of the wall portion 21 located on the short side and located on the right side, and the upper end portion on the right side of the wall portion 21 located on the long side and located on the front side and rear side. Similarly, the upper end portion of the left side portion 20c is the short side and the upper end portion of the wall portion 21 located on the left side, and the long side and the wall portion 21 located on the front side and the rear side. It is the upper end of the left side.
なお、上記の通り、上記交点は三次元ではなく二次元で考えるものとし、左側の排水穴23の下端部と右側の側部20cの上端部で最も低い位置20cl、または、右側の排水穴23の下端部と左側の側部20cの上端部で最も低い位置20clとが、前後方向で異なった位置であったとしても、同一位置にあるものとして考える。つまり、それらの位置がすべて同一平面上にあるものとして考える。
As described above, the intersection point is assumed to be two-dimensional instead of three-dimensional, and the lowest position 20cl at the lower end of the left drain hole 23 and the upper end of the right side 20c, or the right drain hole 23. Even if the lowest position 20cl at the upper end of the left side part 20c is different in the front-rear direction, it is considered that they are at the same position. That is, it is assumed that all of these positions are on the same plane.
ここで、図9の斜線で示すように、交点と、右側の側部20cの上端部で最も低い位置20clと、左側の側部20cの上端部で最も低い位置20clと、を結ぶ線で囲まれた範囲は、ドレンパン20が許容角度傾いても、左右の排水穴23のうち上側に位置する方の排水穴23の下端部23lよりも低い位置にならない部分であり、切り欠いてもそこから結露水が溢れ出さない範囲、つまり、切り欠くことができる範囲である。そのため、交点が頂部24aとなるように、前壁部21aに切り欠き部24を設けることで、結露水が溢れ出さない範囲で、切り欠き量を最大にすることができる。
Here, as shown by the oblique lines in FIG. 9, the intersection is surrounded by a line connecting the lowest position 20cl at the upper end of the right side 20c and the lowest position 20cl at the upper end of the left side 20c. Even if the drain pan 20 is inclined at an allowable angle, it is a portion that does not become lower than the lower end portion 23l of the drainage hole 23 located on the upper side of the left and right drainage holes 23. It is a range where the condensed water does not overflow, that is, a range where it can be cut out. Therefore, by providing the notch portion 24 in the front wall portion 21a so that the intersection is the top portion 24a, the notch amount can be maximized within a range in which the condensed water does not overflow.
図10は、本発明の実施の形態に係る空気調和機の室内機100に用いられるドレンパン20を模式的に示す第二の正面図である。なお、図10に記載の点線は、正面側から見て隠れている前壁部21aの上端部21auに設けられた切り欠き部24を示している。
図10に示すように、ドレンパン20の前壁部21aに設けられた切り欠き部24の劣角側の角度26は鈍角である。 FIG. 10 is a second front view schematically showing thedrain pan 20 used in the indoor unit 100 of the air conditioner according to the embodiment of the present invention. In addition, the dotted line shown in FIG. 10 has shown the notch part 24 provided in the upper end part 21au of the front wall part 21a which is hidden seeing from the front side.
As shown in FIG. 10, theangle 26 on the inferior angle side of the cutout portion 24 provided in the front wall portion 21 a of the drain pan 20 is an obtuse angle.
図10に示すように、ドレンパン20の前壁部21aに設けられた切り欠き部24の劣角側の角度26は鈍角である。 FIG. 10 is a second front view schematically showing the
As shown in FIG. 10, the
ここで、前壁部21aの上端部21auに切り欠き部24を設けたことにより、前壁部21aの高さが位置によっては低くなってしまっているため、室内機100の設置時において許容角度傾いた場合でも、切り欠き部24から結露水が溢れ出すのを防ぐ必要がある。また、できるだけ切り欠き部24の劣角側の角度26、つまり、切り欠き量を大きくした方が、熱交換器2の下端部を通過する空気をより増やすことができ、熱交換効率が向上するという効果をより得られる。
Here, since the notch 24 is provided in the upper end portion 21au of the front wall portion 21a, the height of the front wall portion 21a is lowered depending on the position. Even when tilted, it is necessary to prevent the condensed water from overflowing from the notch 24. Further, if the angle 26 on the inferior angle side of the cutout portion 24 is increased as much as possible, that is, the cutout amount is increased, the air passing through the lower end portion of the heat exchanger 2 can be increased, and the heat exchange efficiency is improved. The effect that can be obtained more.
そこで、切り欠き部24の劣角側の角度26を、180°から左の許容角度および右の許容角度を引いた値にすることで、室内機100の設置時において許容角度傾いた場合でも、切り欠き部24から結露水が溢れ出さない範囲内で、切り欠き量をできるだけ大きくすることができる。
Therefore, by setting the angle 26 on the minor angle side of the notch 24 to a value obtained by subtracting the left allowable angle and the right allowable angle from 180 °, even when the allowable angle is inclined when the indoor unit 100 is installed, The cutout amount can be increased as much as possible within a range in which the condensed water does not overflow from the cutout portion 24.
なお、許容角度が左右とも2°である場合、切り欠き部24の劣角側の角度26は、180°-2°-2°=176°となる。
When the allowable angle is 2 ° on both the left and right sides, the angle 26 on the minor angle side of the notch 24 is 180 ° −2 ° −2 ° = 176 °.
以上のように、本実施の形態に係るドレンパン20によれば、結露の発生を抑制しつつ、熱交換器2の下端部を通過する空気の抵抗を減らし、熱交換器2の下端部を通過する空気を増やすことができるため、熱交換効率が向上する。そのため、室内機100の高性能化を図ることができる。
As mentioned above, according to the drain pan 20 which concerns on this Embodiment, reducing the resistance of the air which passes the lower end part of the heat exchanger 2, suppressing generation | occurrence | production of dew condensation, and passes the lower end part of the heat exchanger 2 Since the amount of air to be increased can be increased, the heat exchange efficiency is improved. Therefore, high performance of the indoor unit 100 can be achieved.
1 背面ケース、2 熱交換器、3 送風ファン、5 吹出口、6 筐体、7 前面意匠パネル、8 上下風向調整板、12 吸込口、20 ドレンパン、20a 前側ドレンパン、20b 後側ドレンパン、20c 側部、21 壁部、21a 前壁部、21au 前壁部の上端部、22 接続部、23 排水穴、23l 排水穴の下端部、24 切り欠き部、24a 頂部、25 水面、26 角度、27 点線、28 点線、30 ドレンパン、31 壁部、32 熱交換器、100 室内機。
1 rear case, 2 heat exchanger, 3 blower fan, 5 outlet, 6 housing, 7 front design panel, 8 vertical airflow direction adjustment plate, 12 suction port, 20 drain pan, 20a front drain pan, 20b rear drain pan, 20c side Part, 21 wall part, 21a front wall part, 21au upper end part of front wall part, 22 connecting part, 23 drainage hole, 23l lower end part of drainage hole, 24 notch part, 24a top part, 25 water surface, 26 angle, 27 dotted line , 28 dotted line, 30 drain pan, 31 walls, 32 heat exchanger, 100 indoor units.
Claims (6)
- 室内空気を内部に吸い込むための吸込口と空調空気を空調対象域に供給するための吹出口とが形成された筐体と、
前記筐体の内部に設けられ、前記吸込口から室内空気を吸い込み、前記吹出口から空調空気を吹き出す送風ファンと、
正面視して長手方向が左右方向となるように前記筐体の内部に配設され、冷媒と室内空気とで熱交換することで空調空気を作り出す熱交換器と、
前記熱交換器の下端部の下方に設けられ、結露水を回収するドレンパンと、を備え、
前記ドレンパンは、
前記熱交換器の長手方向に沿って壁部を備え、
前記壁部の上端部に、劣角側の角度が鈍角である切り欠き部が設けられている
空気調和機の室内機。 A housing formed with an inlet for sucking indoor air into the interior and an outlet for supplying conditioned air to the air-conditioned area;
A blower fan that is provided inside the housing, sucks room air from the suction port, and blows out conditioned air from the blowout port;
A heat exchanger that is arranged inside the housing so that the longitudinal direction is the left-right direction when viewed from the front, and that creates conditioned air by exchanging heat between the refrigerant and room air;
A drain pan that is provided below the lower end of the heat exchanger and collects condensed water; and
The drain pan is
A wall portion is provided along the longitudinal direction of the heat exchanger,
An indoor unit of an air conditioner, wherein an upper end portion of the wall portion is provided with a notch portion whose obtuse angle is an obtuse angle. - 前記ドレンパンには結露水を排水するための排水穴が形成されており、
前記筐体が正面視して据え付け時に水平に対して傾きが許容される角度である許容角度左側または右側に傾いている場合、
鉛直方向において、前記切り欠き部が設けられている前記壁部の上端部で最も低い位置が、前記排水穴の下端部よりも高い位置となる
請求項1に記載の空気調和機の室内機。 The drain pan is formed with a drain hole for draining condensed water,
When the housing is tilted to the left or right side of an allowable angle, which is an angle that allows tilting with respect to the horizontal when installed in front view,
The indoor unit of an air conditioner according to claim 1, wherein the lowest position of the upper end portion of the wall portion where the notch portion is provided is higher than the lower end portion of the drain hole in the vertical direction. - 前記ドレンパンは、正面視して左右側部に前記排水穴を有し、
前記筐体が正面視して前記許容角度左側または右側に傾いている場合、
鉛直方向において、前記切り欠き部が設けられている前記壁部の上端部で最も低い位置が、左右の前記排水穴のうち、上側となる前記排水穴の下端部よりも高い位置となる
請求項2に記載の空気調和機の室内機。 The drain pan has the drainage holes on the left and right sides when viewed from the front,
When the housing is inclined to the left or right side of the allowable angle when viewed from the front,
In the vertical direction, the lowest position of the upper end portion of the wall portion where the cutout portion is provided is a position higher than the lower end portion of the drainage hole on the upper side among the left and right drainage holes. The indoor unit of the air conditioner described in 2. - 前記ドレンパンが水平な状態において、
前記ドレンパンを正面視して左側の前記排水穴の下端部と右側の側部の上端部で最も低い位置とを二次元で結ぶ線と、前記ドレンパンを正面視して右側の前記排水穴の下端部と左側の側部の上端部で最も低い位置とを二次元で結ぶ線と、の交点が頂部となるように、前記切り欠き部が設けられている
請求項3に記載の空気調和機の室内機。 In the state where the drain pan is horizontal,
A line connecting two-dimensionally the lower end of the drain hole on the left side and the lowest position on the upper side of the right side when the drain pan is viewed in front, and the lower end of the drain hole on the right side when the drain pan is viewed in front 4. The air conditioner according to claim 3, wherein the notch portion is provided so that an intersection of the first portion and a line connecting the lowest position at the upper end of the left side portion in two dimensions is a top portion. Indoor unit. - 前記切り欠き部の劣角側の角度は、180°から、左側の前記許容角度および右側の前記許容角度を引いた値である
請求項2~4のいずれか一項に記載の空気調和機の室内機。 The air conditioner according to any one of claims 2 to 4, wherein an angle on the minor angle side of the notch is a value obtained by subtracting the allowable angle on the left side and the allowable angle on the right side from 180 °. Indoor unit. - 前記切り欠き部はV字形状である
請求項1~5のいずれか一項に記載の空気調和機の室内機。 The indoor unit for an air conditioner according to any one of claims 1 to 5, wherein the notch has a V shape.
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Citations (1)
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JPS59132019U (en) * | 1983-02-23 | 1984-09-04 | 三菱重工業株式会社 | air conditioner |
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JPS59132019U (en) * | 1983-02-23 | 1984-09-04 | 三菱重工業株式会社 | air conditioner |
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