JPH07167483A - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JPH07167483A
JPH07167483A JP5316528A JP31652893A JPH07167483A JP H07167483 A JPH07167483 A JP H07167483A JP 5316528 A JP5316528 A JP 5316528A JP 31652893 A JP31652893 A JP 31652893A JP H07167483 A JPH07167483 A JP H07167483A
Authority
JP
Japan
Prior art keywords
drain
drain water
water level
drain pan
pan
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
Application number
JP5316528A
Other languages
Japanese (ja)
Inventor
Akira Shiraishi
彰 白石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP5316528A priority Critical patent/JPH07167483A/en
Publication of JPH07167483A publication Critical patent/JPH07167483A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To improve safety by reliably preventing an accident caused by leakage of drain water. CONSTITUTION:A drain water level control part 7 composed of a back flow preventing plate for preventing a drain water to be drained outside a chamber through a drain connecting pipe 8 and a float switch for outputting a signal when the drain water level of the drain pan 6 reaches a specific value is provided on the drain pan 6 to be arranged on the lower part of the heat exchanger 5, thereby the operation is so stopped as to prevent drain water of the drain pan 6 from overflowing.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、室内機のドレン水を排
水する排水装置を備える空気調和機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner equipped with a drainage device for draining drain water from indoor units.

【0002】[0002]

【従来の技術】この種の従来技術として実公平3ー25
079号公報がある。この公報によれば、圧縮機からの
冷媒を空気と熱交換する熱交換器の下方にドレンパンが
配設され、このドレンパンに溜められたドレン水をモー
タで駆動されるドレンポンプにより所定高さ位置まで押
し上げて排水するようにした空気調和機において、上記
熱交換器の熱交換作用に伴う凍結状態を検出する凍結検
出手段を設け、この凍結検出手段の出力信号を入力し、
その信号に基づき熱交換器の凍結時に上記圧縮機を作動
停止させると共に、その圧縮機の停止後、上記凍結検出
手段により検出される熱交換器の凍結状態が解除される
までの間、上記ドレンポンプを継続して作動させるよう
に上記モータを制御する制御回路を設けた構成としてい
る。
2. Description of the Related Art As a conventional technique of this kind, the actual fair 3-25
There is a 079 publication. According to this publication, a drain pan is arranged below a heat exchanger for exchanging heat from the refrigerant with air to the air, and the drain water accumulated in the drain pan is moved to a predetermined height position by a drain pump driven by a motor. In the air conditioner that was pushed up to drainage, provided with a freeze detection means for detecting the frozen state due to the heat exchange action of the heat exchanger, input the output signal of this freeze detection means,
Based on the signal, the operation of the compressor is stopped when the heat exchanger freezes, and after the compressor is stopped, the drainage of the heat exchanger is released until the frozen state of the heat exchanger detected by the freeze detecting means is released. A control circuit for controlling the motor so as to continuously operate the pump is provided.

【0003】[0003]

【発明が解決しようとする課題】ところが、上記した空
気調和機は、ドレンパンに溜まったドレン水をドレンポ
ンプによって強制的に排出するものであるが、ドレン排
出口に強風が吹けばドレン排水口のドレン水が逆流して
ドレンパンに溜まってオーバフローして水洩れを起こす
恐れがあった。
However, the above-mentioned air conditioner forcibly discharges the drain water accumulated in the drain pan by the drain pump. However, if a strong wind blows on the drain discharge port, There was a risk that the drain water would flow back and collect in the drain pan, causing overflow and water leakage.

【0004】特に、都会のビルでは、数台の室内機のド
レン排水管が一括して、まとめて接続され、ドレン排水
口をビルとビルの谷間に向けて配置されることが多く、
この場合に、いわゆるビル風などの強風がドレン排水口
へ向かって吹くと、ドレン水が逆流したり、また、ドレ
ン排水管内で詰まったりすると、ドレンパンからドレン
水が溢れて水洩れを起こすという問題があった。
In particular, in urban buildings, the drain drainage pipes of several indoor units are collectively and collectively connected, and the drainage drains are often arranged so as to face the building and the valley of the building.
In this case, when strong wind such as so-called building wind blows toward the drain outlet, the drain water flows backward, and if the drain water is clogged, the drain water overflows from the drain pan and causes water leakage. was there.

【0005】そこで、本発明は室内機のドレンパンへド
レン水の逆流を防止し、ドレンパンから水洩れを起こす
ことがないようにドレン水位を調整する空気調和機を提
供することを目的とする。
Therefore, an object of the present invention is to provide an air conditioner which prevents the backflow of drain water to the drain pan of the indoor unit and adjusts the drain water level so as to prevent water leakage from the drain pan.

【0006】[0006]

【課題を解決するための手段】本発明は、冷媒を空気と
熱交換させる熱交換器と、この熱交換器の下方に配設さ
れるドレンパンと、このドレンパンに溜められるドレン
水を室外へ排水する排水接続管とを備えてなる空気調和
機において、室外へ排水するドレン水の逆流を防止する
逆流防止板と、ドレンパンのドレン水位が所定値に達す
ると運転を停止するための溢水防止器とを設けるように
したものである。
According to the present invention, a heat exchanger for exchanging heat between a refrigerant and air, a drain pan disposed below the heat exchanger, and drain water stored in the drain pan are discharged outside the room. In an air conditioner equipped with a drainage connection pipe, a backflow prevention plate that prevents the backflow of drain water that is discharged to the outside of the room, and a flood preventive device that stops the operation when the drain water level of the drain pan reaches a predetermined value. Is provided.

【0007】[0007]

【作用】上記構成により、室外へ排水するドレン水が逆
流したとき、逆流防止板が閉じてドレン水がドレンパン
へ流入することを防止する。また、ドレンパンのドレン
水位が所定値以上となると、溢水防止器によって運転が
停止されてそれ以上のドレン水位の上昇を回避する。従
って、排水口へ強風が吹くことによってドレン水が逆流
してもドレンパンへ流入することがなく、また、逆流防
止板が閉じてドレンパンの水位が危険水位に達すると、
運転を停止させるため、ドレンパンからドレン水が溢れ
る恐れがなく、ドレン水の漏水事故を確実に防止するこ
とができる。
With the above structure, when the drain water drained to the outside flows backward, the backflow prevention plate is closed to prevent the drain water from flowing into the drain pan. Further, when the drain water level of the drain pan becomes equal to or higher than a predetermined value, the operation is stopped by the overflow preventer to prevent further increase of the drain water level. Therefore, even if the drain water flows backward due to the strong wind blowing to the drain port, it does not flow into the drain pan, and when the backflow prevention plate closes and the water level of the drain pan reaches the dangerous water level,
Since the operation is stopped, there is no risk of drain water overflowing from the drain pan, and it is possible to reliably prevent a drain water leak accident.

【0008】[0008]

【実施例】以下、本発明の実施例を図面を参照して説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0009】図1は、本発明の一実施例を示す空気調和
機の断面図を示し、1は室内側に設置される空気調和
機、2は空気吸込口、3は空気吹出口、4はこの空気吹
出口3に設けられた水平羽根、5は空気吸込口2から空
気吹出口3に至る通風路途中に配置した熱交換器、6は
この熱交換器5の下方に配置され、熱交換器5からのド
レンを受けるドレンパン、7は後述する溢水防止器と逆
流防止板とを備えるドレン水位調整部、8はドレン水位
調整部7から外方に突出して設けられた排水接続管でこ
の排水接続管8には図示省略するドレンホースが接続さ
れ外方へ引き出されている。
FIG. 1 is a sectional view of an air conditioner showing an embodiment of the present invention, in which 1 is an air conditioner installed indoors, 2 is an air inlet, 3 is an air outlet, and 4 is an air outlet. Horizontal blades 5 provided at the air outlet 3 are heat exchangers arranged in the air passage extending from the air inlet 2 to the air outlet 3, and 6 are arranged below the heat exchanger 5 for heat exchange. A drain pan for receiving the drain from the device 5, a drain water level adjusting unit 7 provided with an overflow preventer and a backflow prevention plate, which will be described later, and a drain connecting pipe 8 projecting outward from the drain water level adjusting unit 7 for draining the drain water. A drain hose (not shown) is connected to the connecting pipe 8 and is drawn out to the outside.

【0010】なお、10は空気吸込口2から室内空気を
吸い込み、空気吹出口3から吹き出すようにするための
クロスフローファンである。
Reference numeral 10 denotes a cross flow fan for sucking indoor air from the air suction port 2 and blowing it out from the air blowing port 3.

【0011】ここで、ドレン水位調整部7について図2
乃至図4を参照して説明すると、ドレン水位調整部7
は、ドレンパン6の一端部の背面板6aから前方に一体
的に形成される固定部11に設けられ、固定部11は、
上方にドレン水位調整部7を取付ける開口部11aと排
水接続管8に連通する開口部11bと後述するストッパ
ー11e,11fを形成している。
Here, the drain water level adjusting section 7 is shown in FIG.
4 to FIG. 4, the drain water level adjusting unit 7 will be described.
Is provided on a fixed portion 11 that is integrally formed forward from the back plate 6a at one end of the drain pan 6, and the fixed portion 11 is
An opening 11a for mounting the drain water level adjusting section 7, an opening 11b communicating with the drainage connection pipe 8 and stoppers 11e and 11f described later are formed above.

【0012】一方、ドレン水位調整部7は、下部に設け
られる逆流防止板7aをその両端の支点ピン7bによっ
て開閉自在とするように固定柱7cへ取付けると共に、
固定柱7cから上方へ上下に摺動自在とするフロート7
dを貫通させる支柱7eと支柱7eの上端に設けるフロ
ートスイッチ7fとからなる溢水防止器を構成し、例え
ば、図4に示す固定部11に形成される開口部11aか
らドレン水位調整部7の下部が挿入されて開口部11a
の縁部11g,11hで固定されている。
On the other hand, the drain water level adjusting portion 7 is attached to the fixed column 7c so that the backflow prevention plate 7a provided at the lower part can be opened and closed by the fulcrum pins 7b at both ends thereof.
Float 7 slidable upward and downward from fixed column 7c
The overflow preventive device is composed of a column 7e through which d penetrates and a float switch 7f provided at the upper end of the column 7e. For example, from the opening 11a formed in the fixing part 11 shown in FIG. 4 to the lower part of the drain water level adjusting part 7. Is inserted into the opening 11a
It is fixed at the edges 11g and 11h.

【0013】なお、フロートスイッチ7fからリード線
7gが図示省略する制御手段に接続され、フロートスイ
ッチ7fの動作時に運転を停止するようにしている。
The float switch 7f and the lead wire 7g are connected to a control means (not shown) so that the operation is stopped when the float switch 7f operates.

【0014】以上の構成で、空気吸込口2からクロスフ
ローファン10によって吸入した空気が熱交換器5で熱
交換されて空気吹出口3から熱交換された空気が室内へ
吹き出される。この場合に、冷房運転時や除湿時、熱交
換器5で空気中の水分が凝縮されると、凝縮水は熱交換
器5から滴下してドレン水となってドレンパン6へ溜ま
る。ドレン水はドレン水位調整部7の逆流防止板7aを
図2に示す図示矢印外方向へ押し出して連通する排水接
続管8と図示省略するドレンホースによってドレン水が
外部へ放出される。
With the above construction, the air sucked from the air inlet 2 by the cross flow fan 10 is heat-exchanged by the heat exchanger 5, and the heat-exchanged air is blown out from the air outlet 3 into the room. In this case, when the moisture in the air is condensed by the heat exchanger 5 during the cooling operation or the dehumidification, the condensed water drops from the heat exchanger 5 and becomes drain water and is accumulated in the drain pan 6. Drain water is discharged to the outside by a drain hose (not shown) and a drain connection pipe 8 that communicates by pushing the backflow prevention plate 7a of the drain water level adjusting unit 7 to the outside of the arrow shown in FIG.

【0015】この状態のとき、外方への出口であるドレ
ン排水口へ強風が吹いたり、ドレン水位調整部7の逆流
防止板7aの下流側の配管内で詰まり等が生じてドレン
水が空気調和機1へ逆流すると、ドレン水位調整部7に
設けた逆流防止板7aがドレン水の圧力で図2に示す図
示鎖線矢印方向へ移動してストッパー11e,11fで
止まり、開口部11bを閉鎖させる。これによって、ド
レン水位調整部7より下流のドレン水が逆流しても逆流
防止板7aによってドレン水のドレンパン6への流入が
阻止される。
In this state, a strong wind blows to the drain drain port which is an outlet to the outside, or clogging occurs in the pipe on the downstream side of the backflow prevention plate 7a of the drain water level adjusting section 7 to cause the drain water to flow into the air. When the water flows back to the harmony machine 1, the backflow prevention plate 7a provided in the drain water level adjusting unit 7 moves in the direction of the chain line arrow shown in FIG. 2 by the pressure of the drain water and stops at the stoppers 11e and 11f to close the opening 11b. . As a result, even if the drain water downstream of the drain water level adjusting unit 7 flows backward, the backflow prevention plate 7a prevents the drain water from flowing into the drain pan 6.

【0016】一方、万一、ドレンパン6内の水位が危険
水位まで上昇すると、ドレン水位調整部7のフロート7
dが上昇してフロートスイッチ7fに接触する。このた
めフロートスイッチ7fが動作してリード線7gから制
御手段へ信号を出力する。この結果、空気調和機1の運
転が停止され、ドレンパン6に溜まったドレン水の水位
がさらに上昇することが防止される。
On the other hand, if the water level in the drain pan 6 rises to the dangerous water level, the float 7 of the drain water level adjusting unit 7
d rises and contacts the float switch 7f. Therefore, the float switch 7f operates to output a signal from the lead wire 7g to the control means. As a result, the operation of the air conditioner 1 is stopped and the level of the drain water accumulated in the drain pan 6 is prevented from further rising.

【0017】従って、ドレンパン6からドレン水がオー
バフローすることが回避され、空気調和機1からのドレ
ン水の漏水事故を確実に防止して安全性の向上が図られ
る。
Therefore, overflow of drain water from the drain pan 6 is avoided, and accidental leakage of drain water from the air conditioner 1 can be reliably prevented and safety can be improved.

【0018】このように、通常時にドレンパン6に溜ま
ったドレン水は、ドレン水位調整部7の逆流防止板7a
を通過して室外に排水し、ドレン排水口へ強風が吹いて
ドレン水が逆流したり、ドレン水位調整部7の下流側の
配管が詰まったとき、ドレン水位調整部7の逆流防止板
7aが閉められ、ドレン水がドレンパン6へ流入するこ
とを防止することができる。さらに、ドレンパン6のド
レン水の水位が急上昇して危険水位となると、フロート
スイッチ7fが作動して空気調和機1の運転を停止する
ことができ、ドレン水の漏水事故を確実に防止して安全
性の向上を図ることができる。
As described above, the drain water accumulated in the drain pan 6 at the normal time is backflow prevention plate 7a of the drain water level adjusting section 7.
Drainage to the outside through the drainage, strong wind blows to the drain drainage port and the drain water flows backward, or when the pipe on the downstream side of the drain water level adjusting unit 7 is clogged, the backflow prevention plate 7a of the drain water level adjusting unit 7 It can be closed and drain water can be prevented from flowing into the drain pan 6. Further, when the drain water level of the drain pan 6 suddenly rises to a dangerous water level, the float switch 7f can be actuated to stop the operation of the air conditioner 1, and the drain water leakage accident can be surely prevented to ensure safety. It is possible to improve the sex.

【0019】なお、本実施例では、ドレンパンの水位の
検知のためフロートスイッチを用いたが、これに限らず
水位を検知して所定の信号を出力できるものであればよ
く、例えば、光センサ、磁気センサや水の抵抗センサを
利用した水位検知手段でもよい。また、水位センサは、
危険水位の位置以上となったことが検知されればよく、
危険水位の位置にドレン水の有無を検知する手段を設け
てもよい。
In this embodiment, the float switch is used to detect the water level of the drain pan, but the present invention is not limited to this, and any device capable of detecting the water level and outputting a predetermined signal, for example, an optical sensor, Water level detection means using a magnetic sensor or a water resistance sensor may be used. Also, the water level sensor
It suffices if it is detected that the position is above the dangerous water level,
A means for detecting the presence or absence of drain water may be provided at the dangerous water level.

【0020】[0020]

【発明の効果】以上説明したように本発明によれば、ド
レン水の逆流を防止する逆流防止板とドレン水位が所定
値に達すると運転の停止をさせる溢水防止器とを設け、
ドレン水の逆流を防止をする一方、ドレンパンのドレン
水位が所定値に達すると運転の停止をさせるようにした
ためにドレン水の漏水事故を確実に防止して安全性の向
上を図ることができる。
As described above, according to the present invention, the backflow preventing plate for preventing the backflow of drain water and the overflow preventer for stopping the operation when the drain water level reaches a predetermined value are provided.
While preventing the reverse flow of drain water, the operation is stopped when the drain water level of the drain pan reaches a predetermined value. Therefore, it is possible to reliably prevent drain water leakage accidents and improve safety.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す空気調和機の縦断面
図。
FIG. 1 is a vertical cross-sectional view of an air conditioner showing an embodiment of the present invention.

【図2】図1のドレンパンに備えるドレン水位調整部の
縦断面図。
FIG. 2 is a vertical cross-sectional view of a drain water level adjusting unit provided in the drain pan of FIG.

【図3】図2のドレン水位調整部のAーA断面図。3 is a cross-sectional view taken along the line AA of the drain water level adjusting unit in FIG.

【図4】図2のドレン水位調整部のBーB断面図。FIG. 4 is a BB cross-sectional view of the drain water level adjusting unit in FIG.

【符号の説明】[Explanation of symbols]

1 空気調和機 2 空気吸込口 3 空気吹出口 5 熱交換器 6 ドレンパン 7 ドレン水位調整部 7a 逆流防止板 7b 支点ピン 7c 固定柱 7d フロート 7e 支柱 7f フロートスイッチ 8 排水接続管 11 固定部 11a,11b 開口部 11e,11f ストッパー 11g,11h 縁部 1 Air Conditioner 2 Air Suction Port 3 Air Outlet 5 Heat Exchanger 6 Drain Pan 7 Drain Water Level Adjusting Section 7a Backflow Prevention Plate 7b Support Point Pin 7c Fixed Column 7d Float 7e Strut 7f Float Switch 8 Drain Connection Pipe 11 Fixed Section 11a, 11b Openings 11e, 11f Stoppers 11g, 11h Edges

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 冷媒を空気と熱交換させる熱交換器と、
この熱交換器の下方に配設されるドレンパンと、このド
レンパンに溜められるドレン水を室外へ排水する排水接
続管とを備えてなる空気調和機において、前記室外へ排
水するドレン水の逆流を防止する逆流防止板と、前記ド
レンパンのドレン水位が所定値に達すると運転を停止す
るための溢水防止器とを備えたことを特徴とする空気調
和機。
1. A heat exchanger for exchanging heat between a refrigerant and air,
In an air conditioner comprising a drain pan disposed below the heat exchanger and a drain connection pipe for draining drain water stored in the drain pan to the outside of the room, backflow of drain water drained to the outside is prevented. An air conditioner comprising: a backflow prevention plate and a flood preventer for stopping the operation when the drain water level of the drain pan reaches a predetermined value.
JP5316528A 1993-12-16 1993-12-16 Air conditioner Pending JPH07167483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5316528A JPH07167483A (en) 1993-12-16 1993-12-16 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5316528A JPH07167483A (en) 1993-12-16 1993-12-16 Air conditioner

Publications (1)

Publication Number Publication Date
JPH07167483A true JPH07167483A (en) 1995-07-04

Family

ID=18078113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5316528A Pending JPH07167483A (en) 1993-12-16 1993-12-16 Air conditioner

Country Status (1)

Country Link
JP (1) JPH07167483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106352528A (en) * 2016-10-08 2017-01-25 珠海格力电器股份有限公司 Water receiving plate assembly and air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106352528A (en) * 2016-10-08 2017-01-25 珠海格力电器股份有限公司 Water receiving plate assembly and air conditioner
CN106352528B (en) * 2016-10-08 2021-11-02 珠海格力电器股份有限公司 Water collector subassembly and air conditioner

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