JPH07294070A - Outside air treating unit - Google Patents

Outside air treating unit

Info

Publication number
JPH07294070A
JPH07294070A JP6111965A JP11196594A JPH07294070A JP H07294070 A JPH07294070 A JP H07294070A JP 6111965 A JP6111965 A JP 6111965A JP 11196594 A JP11196594 A JP 11196594A JP H07294070 A JPH07294070 A JP H07294070A
Authority
JP
Japan
Prior art keywords
outside air
building
air
indoor unit
defrosting
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.)
Granted
Application number
JP6111965A
Other languages
Japanese (ja)
Other versions
JP3207043B2 (en
Inventor
Hiroshi Sase
弘 佐瀬
Minoru Tsujimoto
稔 辻本
Akira Yamoto
明 矢本
Kohei Sato
鋼平 佐藤
Original Assignee
Kajima Corp
鹿島建設株式会社
Sanyo Electric Co Ltd
三洋電機株式会社
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 Kajima Corp, 鹿島建設株式会社, Sanyo Electric Co Ltd, 三洋電機株式会社 filed Critical Kajima Corp
Priority to JP11196594A priority Critical patent/JP3207043B2/en
Publication of JPH07294070A publication Critical patent/JPH07294070A/en
Application granted granted Critical
Publication of JP3207043B2 publication Critical patent/JP3207043B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To sufficiently ensure the amount of outside air according to a building management law even during a defrosting operation. CONSTITUTION:In an outside air treating unit which controls temperature and/or humidity of outside air by means of an indoor machine, at least two indoor heat exchangers 25a, 25b are provided in the indoor machine 13 and when one of the exchangers functions as an evaporator 25a in a defrosting operation, the other exchanger functions as a condenser 25b, and in the defrosting operation, the condenser 25b is used to heat the outside air to introduce it, whereby room temperature in a building is prevented from falling down.

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、外気を調温及び/又は
調湿して室内へ導くための空気熱源ヒートポンプ式の外
気処理ユニットに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air heat source heat pump type outside air processing unit for adjusting the temperature and / or the humidity of outside air to introduce it into a room.
【0002】[0002]
【従来の技術】一般に、室内機と室外機とから成る外気
処理ユニットを備え、外気を前記室内機によって調温及
び/又は調湿して建屋内に導く通路と、建屋内の空気を
建屋外に排出する通路とを備えた外気処理ユニットは知
られている。この種のものはビル等の室内にビル管理法
に従って所定量の外気を導入するために設置される。
2. Description of the Related Art Generally, an outdoor air treatment unit including an indoor unit and an outdoor unit is provided, and a passage for guiding the outside air to the building by controlling the temperature and / or the humidity of the indoor unit and the air inside the building are used outdoors. An outside air treatment unit is known which is provided with a passage for discharging to the outside. This type is installed in a room such as a building in order to introduce a predetermined amount of outside air according to the building management method.
【0003】ところで、空気熱源ヒートポンプ式の外気
処理ユニットにあっては、外気が冷たい時期等に、室外
機の熱交換器に着霜する場合があり、この場合には例え
ば10分間程度の除霜運転が行なわれている
By the way, in the air heat source heat pump type outside air processing unit, the heat exchanger of the outdoor unit may be frosted when the outside air is cold. In this case, for example, defrosting for about 10 minutes is required. Driving is done
【0004】[0004]
【発明が解決しようとする課題】しかしながら、外気処
理ユニットを通じて建屋内に外気を導入しながら除霜運
転を行うと、室内機の室内熱交換器は蒸発器(エバポレ
ータ)として機能するので、結果的に冷たい外気がさら
に冷却されて建屋内に導入されることになり、建屋内の
温度が低下してしまうという問題がある。
However, when the defrosting operation is performed while introducing the outside air into the building through the outside air processing unit, the indoor heat exchanger of the indoor unit functions as an evaporator (evaporator), and as a result, The cold outside air is further cooled and introduced into the building, which causes a problem that the temperature inside the building is lowered.
【0005】これを解消するために、除霜運転時には、
外気処理ユニットを通じて建屋内に外気を導入しないよ
うにすることが提案される。
In order to solve this, during defrosting operation,
It is proposed not to introduce outside air into the building through the outside air treatment unit.
【0006】しかしながら、これによると、除霜運転時
には、ビル管理法に従うところの所定量の外気が導入さ
れなくなるという問題がある。
However, according to this, there is a problem that a predetermined amount of outside air, which complies with the building management method, is not introduced during the defrosting operation.
【0007】そこで、本発明の目的は、上述した従来の
技術が有する問題点を解消し、除霜運転時にも、ビル管
理法に従うところの外気量を十分に確保することのでき
る外気処理ユニットを提供することにある。
Therefore, an object of the present invention is to provide an outside air treatment unit which can solve the problems of the above-mentioned conventional techniques and can secure a sufficient amount of outside air according to the Building Management Law even during defrosting operation. To provide.
【0008】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、第1の発明は、外気を室内機で調温及び/又は調
湿して建屋内に導く外気処理ユニットにおいて、室内機
には少なくとも2台の室内熱交換器を設け、一方が除霜
運転時の蒸発器として機能する時には、他方が凝縮器と
して機能するように構成したものである。
In order to achieve the above-mentioned object, a first aspect of the present invention is an outdoor air treatment unit for controlling the temperature and / or the humidity of outdoor air into an indoor unit by using the indoor unit. Is provided with at least two indoor heat exchangers, and when one functions as an evaporator during defrosting operation, the other functions as a condenser.
【0009】第2の発明は、除霜運転時に、建屋内の空
気を室内機に導き、室内機を通った空気を建屋外に排出
する第1の通路と、外気を室内機を通さずに建屋内に導
く第2の通路とを備えたものである。
In a second aspect of the invention, during the defrosting operation, the first passage for guiding the air inside the building to the indoor unit and discharging the air passing through the indoor unit to the outside of the building, and the outside air without passing through the indoor unit. And a second passage leading into the building.
【0010】第3の発明は、除霜運転時に、建屋内の空
気を室内機に導き、室内機を通った空気を建屋外に排出
する第1の通路と、外気を室内機を通さずに加熱器を通
して建屋内に導く第2の通路とを備えたものである。
In a third aspect of the present invention, during the defrosting operation, the first passage for guiding the air inside the building to the indoor unit and discharging the air passing through the indoor unit to the outside of the building, and the outside air without passing through the indoor unit. And a second passage leading into the building through the heater.
【0011】[0011]
【作用】外気の冷たい時期(冬期)等に、例えば室外熱
交換器に着霜すると、それを取り除くための除霜運転が
行われる。
When the outdoor heat exchanger is frosted, for example, when the outside air is cold (winter), a defrosting operation is performed to remove the frost.
【0012】第1の発明によれば、この除霜運転時にお
いて、外気を建屋内に導く経路内の室内機には少なくと
も2台の室内熱交換器が設けられ、一方の室内熱交換器
が除霜運転時の蒸発器として機能する時には、他方の室
内熱交換器が凝縮器として機能するようになっているの
で、この凝縮器として機能する室内熱交換器を使って暖
めた外気を建屋内に導入することにより、建屋内の温度
を低下させることなく、除霜運転時にも、所定量の外気
を導入することができる。
According to the first invention, at the time of the defrosting operation, at least two indoor heat exchangers are provided in the indoor unit in the path for guiding the outside air into the building, and one indoor heat exchanger is provided. When functioning as an evaporator during defrosting operation, the other indoor heat exchanger functions as a condenser, so the outside air warmed using the indoor heat exchanger functioning as this condenser is used inside the building. By introducing the air into the building, a predetermined amount of outside air can be introduced even during the defrosting operation without lowering the temperature inside the building.
【0013】第2の発明によれば、除霜運転時におい
て、まず第1の通路を通じて、建屋内の空気を一旦室内
機に導いて、この室内機を通った空気を建屋外に排出し
ているので、室内機の室内熱交換器はその分だけ熱を吸
い上げるので、これにつながる室外機の室外熱交換器の
除霜時間は短縮される。また、この際には、第2の通路
を通じて、外気が建屋内に導入されるので、除霜運転時
に外気の導入量が不足することはなく、しかも外気は室
内機を通さずに導入されるので、少なくともこの室内機
の室内熱交換器(蒸発器)によって冷却されることはな
く、建屋内の温度が著しく低下することはない。
According to the second aspect of the present invention, during the defrosting operation, first, the air in the building is first guided to the indoor unit through the first passage, and the air passing through this indoor unit is discharged to the outdoor building. Since the indoor heat exchanger of the indoor unit absorbs heat by that amount, the defrosting time of the outdoor heat exchanger of the outdoor unit connected thereto is shortened. Further, at this time, since the outside air is introduced into the building through the second passage, the introduced amount of the outside air does not become insufficient during the defrosting operation, and the outside air is introduced without passing through the indoor unit. Therefore, at least this is not cooled by the indoor heat exchanger (evaporator) of the indoor unit, and the temperature inside the building is not significantly lowered.
【0014】第3の発明によれば、除霜運転時におい
て、外気が加熱器によって暖められて導入されるので、
建屋内の温度を低下させることなく、除霜運転時にも、
所定量の外気を導入することができる。
According to the third invention, since the outside air is warmed by the heater and introduced during the defrosting operation,
Even during defrosting operation without lowering the temperature inside the building,
A predetermined amount of outside air can be introduced.
【0015】[0015]
【実施例】以下、本発明の一実施例を添付図面を参照し
て説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.
【0016】図1において、100はビルの建屋を示
し、この建屋100には、4つの部屋1a〜1dと、廊
下2と、女子トイレ3と、湯沸室4と、男子トイレ5
と、階段6と、機械室7が設けられている。ここで、部
屋1a〜1dは居住域であり、そのほかの部分は非居住
域である。
In FIG. 1, reference numeral 100 denotes a building, in which four rooms 1a to 1d, a corridor 2, a women's toilet 3, a water heating room 4, and a men's toilet 5 are provided.
A staircase 6 and a machine room 7 are provided. Here, the rooms 1a to 1d are living areas, and the other portions are non-living areas.
【0017】夫々の部屋1a〜1dには天井埋込型の室
内ユニット8が設けられ、この室内ユニット8には図示
を省略した室外ユニットがつながれ、これら室内ユニッ
ト8と室外ユニット(図示せず)とからなる空調システ
ムにより、各部屋1a〜1dは適温に空調されている。
A ceiling-embedded indoor unit 8 is provided in each of the rooms 1a to 1d, and an outdoor unit (not shown) is connected to the indoor unit 8, and these indoor unit 8 and an outdoor unit (not shown) are connected. The rooms 1a to 1d are air-conditioned at an appropriate temperature by the air-conditioning system consisting of.
【0018】ところで、このビル100の内部には、ビ
ル管理法に従って所定量の外気が導入されなければなら
ない。
By the way, a predetermined amount of outside air must be introduced into the building 100 in accordance with the building management method.
【0019】この外気は、機械室7に設けられた外気処
理ユニット11により調温及び/又は調湿されて建屋1
00内に導入される。外気処理ユニット11は室内機1
3と室外機15とからなり、これらは冷媒管17により
つながれて空気熱源ヒートポンプを構成している。外気
処理ユニット11は、外気導入ダクト26、及び給気ダ
クト29を含んでおり、この給気ダクト29は分岐され
て、夫々の分岐ダクト29a〜29dは4つの部屋1a
〜1dに延出し、夫々の外気吹出口33a〜33dにつ
ながれている。
The outside air is temperature-controlled and / or humidity-controlled by an outside air processing unit 11 provided in the machine room 7, and the building 1
It is introduced in 00. The outdoor air processing unit 11 is the indoor unit 1
3 and the outdoor unit 15, which are connected by a refrigerant pipe 17 to form an air heat source heat pump. The outside air processing unit 11 includes an outside air introduction duct 26 and an air supply duct 29. The air supply duct 29 is branched, and each of the branch ducts 29a to 29d has four rooms 1a.
˜1d and connected to the respective outside air outlets 33a to 33d.
【0020】外気処理ユニット11により外気が導入さ
れると、それと同じ量の空気が建屋100外に排出され
なければならない。
When the outside air is introduced by the outside air processing unit 11, the same amount of air must be discharged outside the building 100.
【0021】このとき排出される空気は非居住域に設け
られたON−OFF式の排気ファン200a〜200c
を通じて排出される。
The air discharged at this time is an ON-OFF type exhaust fan 200a to 200c provided in a non-residential area.
Exhausted through.
【0022】この実施例によれば、上記の外気処理ユニ
ット11には、図2に示すように、2系統の空気熱源ヒ
ートポンプが設けられている。
According to this embodiment, the outside air processing unit 11 is provided with two systems of air heat source heat pumps, as shown in FIG.
【0023】室内機13には、遠心型送風機21と、加
湿器23と、2系統に区分された室内熱交換器25a,
25bと、フィルタ26とが内蔵され、このフィルタ2
6の上方より外気導入ダクト27を通じて外気が導入さ
れ、室内機13内で空調された後に、この外気は、給気
ダクト29を通じて、上述の部屋1a〜1dの内部に吹
き出される。
The indoor unit 13 includes a centrifugal blower 21, a humidifier 23, and an indoor heat exchanger 25a divided into two systems.
25b and a filter 26 are built in, and this filter 2
Outside air is introduced from above the outside 6 through the outside air introduction duct 27, and after being air-conditioned in the indoor unit 13, this outside air is blown into the inside of the above-mentioned rooms 1a to 1d through the air supply duct 29.
【0024】室内機13には室外機15がつながれ、こ
の室外機15には、2系統に区分された膨脹弁31a,
31bと、室外熱交換器33a,33bと、四方弁35
a,35bと、圧縮機37a,37bとが内蔵されてい
る。
An outdoor unit 15 is connected to the indoor unit 13, and the outdoor unit 15 has expansion valves 31a, which are divided into two systems.
31b, the outdoor heat exchangers 33a and 33b, and the four-way valve 35.
a, 35b and compressors 37a, 37b are built in.
【0025】つぎに、この実施例の作用を説明する。Next, the operation of this embodiment will be described.
【0026】外気が冷たい時期に、外気処理ユニット1
1を通じて外気を導入する際には、いずれの四方弁35
a,35bを図示の実線のように切り替えると共に、圧
縮機37a,37bを運転させて、冷媒を実線の矢印方
向へ流すと共に、室内機13の送風機21を運転する。
この場合には、室内熱交換器25a,25bはいずれも
凝縮器となるので、外気は暖められて、矢印で示すよう
に室内へ送られる。
When the outside air is cold, the outside air processing unit 1
When introducing the outside air through 1, the four-way valve 35
While switching a and 35b as shown by the solid line in the figure, the compressors 37a and 37b are operated to allow the refrigerant to flow in the arrow direction of the solid line and the blower 21 of the indoor unit 13 is operated.
In this case, since the indoor heat exchangers 25a and 25b are both condensers, the outside air is warmed and sent to the room as indicated by the arrow.
【0027】このような外気の導入運転が行われている
間に、室外機15の室外熱交換器33に着霜した場合、
これを除去するために除霜運転が行なわれる。
When frost forms on the outdoor heat exchanger 33 of the outdoor unit 15 while such an outside air introduction operation is being performed,
A defrosting operation is performed to remove this.
【0028】この除霜運転は、四方弁35を図示の位置
と反対の位置に切り替えて、冷媒を点線の矢印方向へ流
すことにより行われる。この場合には、室内機13の室
内熱交換器23は蒸発器として機能するので、この蒸発
器を使って外気を導入すると、冷たい外気はさらに冷却
されて室内へ送られ、その結果、建屋100内の温度を
著しく低下させてしまう。
This defrosting operation is performed by switching the four-way valve 35 to a position opposite to the position shown in the figure and flowing the refrigerant in the direction of the dotted arrow. In this case, since the indoor heat exchanger 23 of the indoor unit 13 functions as an evaporator, when the outside air is introduced using this evaporator, the cold outside air is further cooled and sent to the room, and as a result, the building 100 It will significantly reduce the internal temperature.
【0029】しかして、この実施例によれば、外気処理
ユニット11には2系統の空気熱源ヒートポンプが設け
られているので、一方の系統の除霜運転を行なう時に
は、他方の系統の室内熱交換器を使って外気を暖めて、
それを建屋内に導入することにより、建屋内の温度を低
下させることなく、除霜運転時にも、所定量の外気を導
入することができるという利点が得られる。
According to this embodiment, however, since the outside air processing unit 11 is provided with the air heat source heat pumps of two systems, when the defrosting operation of one system is performed, the indoor heat exchange of the other system is performed. Warm the outside air using a vessel,
By introducing it into the building, there is an advantage that a predetermined amount of outside air can be introduced even during the defrosting operation without lowering the temperature inside the building.
【0030】例えば、一方の室外熱交換器33aを除霜
運転する場合、四方弁35aのみを図示の位置と反対の
位置に切り替えて圧縮機37aを運転させる。これによ
って、室内熱交換器25aは蒸発器として機能する。こ
の時には、他方の系統の四方弁35bは図示の位置に保
ったまま圧縮機37bを運転させ室外熱交換器33bを
凝縮器として機能させ、これにより外気を暖めて、その
外気を建屋内に導入する。このときには、室内機13の
一方のダンパ41aは閉じて、他方のダンパ41bは開
く。尚、室外熱交換器33bを除霜させる場合は上述と
反対の動作を行う。
For example, when defrosting one of the outdoor heat exchangers 33a, only the four-way valve 35a is switched to the position opposite to the position shown in the figure to operate the compressor 37a. Thereby, the indoor heat exchanger 25a functions as an evaporator. At this time, the four-way valve 35b of the other system is operated while operating the compressor 37b while keeping the outdoor heat exchanger 33b functioning as a condenser while keeping the outside air warmed and introduced into the building. To do. At this time, one damper 41a of the indoor unit 13 is closed and the other damper 41b is opened. When defrosting the outdoor heat exchanger 33b, the operation opposite to the above is performed.
【0031】これによれば、建屋100内の温度を低下
させることなく、除霜運転時にも、所定量の外気を導入
することができる。
According to this, a predetermined amount of outside air can be introduced even during the defrosting operation without lowering the temperature inside the building 100.
【0032】図3は別の実施例を示している。FIG. 3 shows another embodiment.
【0033】非居住域からの空気の排出は、3つの排気
口160a〜160cにつながる1本の排出ダクト16
0と、1つの排気ファン150とを通じて行われる。こ
の実施例によれば、排出ダクト160は室内機13に含
まれ、そのほかの構成は上記実施例(図1)のものとほ
ぼ同じである。
Air is discharged from the non-residential area by one exhaust duct 16 connected to the three exhaust ports 160a to 160c.
0 and one exhaust fan 150. According to this embodiment, the exhaust duct 160 is included in the indoor unit 13, and the other structure is almost the same as that of the above embodiment (FIG. 1).
【0034】この室内機13は、図4に示すように、外
気を室内熱交換器25によって調温及び/又は調湿して
建屋100内に導く通路(外気導入ダクト26、及び給
気ダクト29)210と、建屋100内の空気を建屋1
00外に排出する通路(排出ダクト)160と、各通路
160,210を室内機13の前後でつなぐ通路23
0,250と、通路210につながり室内機13をバイ
パスする通路270とを備え、各通路160,230,
250,270には、夫々第1〜第4のダンパA,B,
C,Dが設けられている。
As shown in FIG. 4, the indoor unit 13 has a passage (outside air introduction duct 26 and air supply duct 29) for guiding the outside air into the building 100 by controlling the temperature and / or the humidity of the outside heat exchanger 25. ) 210 and the air inside the building 100
A passage (exhaust duct) 160 that discharges to the outside of the indoor unit 00, and a passage 23 that connects the passages 160 and 210 in front of and behind the indoor unit 13.
0, 250, and a passage 270 connected to the passage 210 and bypassing the indoor unit 13, each passage 160, 230,
250 and 270 include first to fourth dampers A and B, respectively.
C and D are provided.
【0035】この実施例の作用を説明すると、通常時に
は、図4に示す位置に、第1〜第4のダンパA,B,
C,Dが開閉される。これによれば、外気は室内熱交換
器25によって調温及び/又は調湿されて、通路210
を通って、建屋100内に導入され、建屋100内から
は、導入される外気とほぼ同じ量の空気が通路160を
通って排出される。
The operation of this embodiment will be described. In normal times, the first to fourth dampers A, B, and
C and D are opened and closed. According to this, the outside air is temperature-controlled and / or humidity-controlled by the indoor heat exchanger 25, and the passage 210
The air is introduced into the building 100 through the passage 160, and from the inside of the building 100, substantially the same amount of air as the introduced outside air is discharged through the passage 160.
【0036】外気の冷たい時期(冬期)等に、例えば室
外機15(図3参照)の室外熱交換器に着霜すると、そ
れを取除くための除霜運転が行われる。
When frost forms on the outdoor heat exchanger of the outdoor unit 15 (see FIG. 3), for example, when the outside air is cold (winter), defrosting operation for removing the frost is performed.
【0037】この除霜運転時には、図5に示す位置に、
第1〜第4のダンパA,B,C,Dが開閉される。
During the defrosting operation, the position shown in FIG.
The first to fourth dampers A, B, C, D are opened and closed.
【0038】これによれば、建屋100内の空気は通路
160,230(第1の通路)を通って、一旦室内熱交
換器25に導かれ、その後に建屋100外に排出され
る。これによれば、室内機13の室内熱交換器25は建
屋100内の空気の温度(約20℃)の分だけ熱を吸い
上げるので、これにつながる室外機15(図5参照)の
室外熱交換器(図示せず)の除霜時間を短縮することが
できる。
According to this, the air inside the building 100 is once guided to the indoor heat exchanger 25 through the passages 160 and 230 (first passage), and then discharged to the outside of the building 100. According to this, since the indoor heat exchanger 25 of the indoor unit 13 absorbs heat by the temperature of the air in the building 100 (about 20 ° C.), the outdoor heat exchange of the outdoor unit 15 (see FIG. 5) connected to this. The defrosting time of the vessel (not shown) can be shortened.
【0039】また、通路270(第2の通路)を通じ
て、外気が建屋100内に導入されるので、除霜運転時
に外気の導入量が不足することはなく、しかも外気は室
内機13を通さずに導入されるので、少なくともこの室
内機13の室内熱交換器(蒸発器)によって冷却される
ことはなく、建屋100内の温度の低下を防止すること
ができる。
Further, since the outside air is introduced into the building 100 through the passage 270 (second passage), the introduced amount of the outside air does not run short during the defrosting operation, and the outside air does not pass through the indoor unit 13. Therefore, the temperature inside the building 100 can be prevented from lowering without being cooled by at least the indoor heat exchanger (evaporator) of the indoor unit 13.
【0040】春、秋などの中間期には室内機13、及び
室外機15を動かさずに、換気運転が行われる。
Ventilation operation is performed without moving the indoor unit 13 and the outdoor unit 15 in an intermediate period such as spring and autumn.
【0041】この場合には、図6に示す位置に、第1〜
第4のダンパA,B,C,Dが開閉される。これによれ
ば、外気は室内機13をバイパスする通路270を通じ
て建屋100内に導入されるので、室内機13、及び通
路210を通じて導入する従来方式に比べて、通気抵抗
は少なくなり、その分だけ送風機(図示せず)の動力を
低減することができる。
In this case, at the positions shown in FIG.
The fourth dampers A, B, C, D are opened and closed. According to this, since the outside air is introduced into the building 100 through the passage 270 that bypasses the indoor unit 13, the ventilation resistance is smaller than that of the conventional method that is introduced through the indoor unit 13 and the passage 210. The power of the blower (not shown) can be reduced.
【0042】さらに、別の実施例として、図4を参照し
て、通路210の出口に、例えばヒーター、ヒートパイ
プ、蓄熱材等からなる加熱器290を設けてもよい。こ
れによれば、図5を参照して、除霜運転時に、通路27
0を通じて導入される外気が、加熱器290によって暖
められて導入されるので、外気の導入により建屋100
内の温度が低下することはない。
Further, as another embodiment, referring to FIG. 4, a heater 290 made of, for example, a heater, a heat pipe, a heat storage material or the like may be provided at the outlet of the passage 210. According to this, referring to FIG. 5, during the defrosting operation, the passage 27
Since the outside air introduced through 0 is warmed by the heater 290 and introduced, the building 100 can be introduced by the introduction of the outside air.
The temperature inside does not decrease.
【0043】[0043]
【発明の効果】以上の説明から明らかなように、第1の
発明によれば、一方の室内熱交換器が除霜運転時の蒸発
器として機能する時には、他方の室内熱交換器が凝縮器
として機能するので、この凝縮器として機能する室内熱
交換器を使って暖めた外気を建屋内に導入することによ
り、建屋内の温度を低下させることなく、除霜運転時
に、所定量の外気を導入することができる。
As is apparent from the above description, according to the first aspect of the invention, when one indoor heat exchanger functions as an evaporator during defrosting operation, the other indoor heat exchanger is a condenser. By introducing the outside air warmed using the indoor heat exchanger that functions as this condenser into the building, a predetermined amount of outside air can be removed during defrosting operation without lowering the temperature inside the building. Can be introduced.
【0044】第2の発明によれば、除霜運転時に、第1
の通路を通じて、建屋内の空気を一旦室内機に導いて、
この室内機を通った空気を建屋外に排出しているので、
室内機の室内熱交換器はその分だけ熱を吸い上げるの
で、これにつながる室外機の室外熱交換器の除霜時間は
短縮される。また、この際に第2の通路を通じて、外気
が建屋内に導入されるので、除霜運転時に外気の導入量
が不足することはない。しかも外気は室内機を通さずに
導入されるので、少なくともこの室内機の室内熱交換器
(蒸発器)によって冷却されることはなく、建屋内の温
度が著しく低下することはない。
According to the second aspect of the invention, during the defrosting operation, the first
The air inside the building is guided to the indoor unit through the passage of
Since the air that has passed through this indoor unit is discharged outside the building,
Since the indoor heat exchanger of the indoor unit absorbs heat correspondingly, the defrosting time of the outdoor heat exchanger of the outdoor unit connected thereto is shortened. Further, at this time, since the outside air is introduced into the building through the second passage, the introduced amount of the outside air does not become insufficient during the defrosting operation. Moreover, since the outside air is introduced without passing through the indoor unit, it is not cooled at least by the indoor heat exchanger (evaporator) of this indoor unit, and the temperature inside the building does not drop significantly.
【0045】第3の発明によれば、除霜運転時におい
て、外気が加熱器によって暖められて導入されるので、
建屋内の温度を低下させることなく、除霜運転時にも、
所定量の外気を導入することができる。
According to the third invention, since the outside air is warmed by the heater and introduced during the defrosting operation,
Even during defrosting operation without lowering the temperature inside the building,
A predetermined amount of outside air can be introduced.
【図面の簡単な説明】[Brief description of drawings]
【図1】外気処理システムを示す系統図である。FIG. 1 is a system diagram showing an outside air treatment system.
【図2】本発明による外気処理ユニットの一実施例を示
す図である。
FIG. 2 is a diagram showing an embodiment of an outside air processing unit according to the present invention.
【図3】別の実施例の外気処理システムを示す図であ
る。
FIG. 3 is a diagram showing an outside air treatment system of another embodiment.
【図4】図3の外気処理ユニットを示す図である。FIG. 4 is a diagram showing the outside air processing unit of FIG. 3;
【図5】図3の外気処理ユニットを示す図である。5 is a diagram showing the outside air processing unit of FIG.
【図6】図3の外気処理ユニットを示す図である。FIG. 6 is a diagram showing the outside air processing unit of FIG. 3;
【符号の説明】[Explanation of symbols]
1a〜1d 部屋 11,170 外気処理ユニット 13 室内機 15 室外機 21 遠心型送風機 25a,25b 室内熱交換器 26 外気導入ダクト 29 供給ダクト 33a,33b 室外熱交換器 160,210,230,250,270 通路 1a to 1d Room 11,170 Outdoor air treatment unit 13 Indoor unit 15 Outdoor unit 21 Centrifugal blower 25a, 25b Indoor heat exchanger 26 Outdoor air introduction duct 29 Supply duct 33a, 33b Outdoor heat exchanger 160, 210, 230, 250, 270 aisle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 矢本 明 大阪府守口市京阪本通2丁目5番地5号 三洋電機株式会社内 (72)発明者 佐藤 鋼平 大阪府守口市京阪本通2丁目5番地5号 三洋電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Akira Yamoto 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Kohei Sato 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Address No. 5 Sanyo Electric Co., Ltd.

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 外気を室内機で調温及び/又は調湿して
    建屋内に導く外気処理ユニットにおいて、 前記室内機には少なくとも2台の室内熱交換器を設け、
    一方が除霜運転時の蒸発器として機能する時には、他方
    が凝縮器として機能するように構成したことを特徴とす
    る外気処理ユニット。
    1. An outdoor air processing unit for controlling the temperature and / or the humidity of outdoor air into an interior of a building, wherein the indoor unit is provided with at least two indoor heat exchangers.
    An outside air processing unit, characterized in that when one functions as an evaporator during defrosting operation, the other functions as a condenser.
  2. 【請求項2】 外気を室内機によって調温及び/又は調
    湿して建屋内に導く通路と、建屋内の空気を建屋外に排
    出する通路とを備えた外気処理ユニットにおいて、 除霜運転時に、建屋内の空気を室内機に導き、室内機を
    通った空気を建屋外に排出する第1の通路と、外気を室
    内機を通さずに建屋内に導く第2の通路とを備えたこと
    を特徴とする外気処理ユニット。
    2. An outside air processing unit comprising a passage for guiding the temperature and / or humidity of outside air into the building by an indoor unit and a passage for discharging the air in the building to the outside of the building during defrosting operation. A first passage for guiding the air in the building to the indoor unit and discharging the air passing through the indoor unit to the outdoor, and a second passage for guiding the outside air into the building without passing the indoor unit An outdoor air treatment unit characterized by.
  3. 【請求項3】 外気を室内機によって調温及び/又は調
    湿して建屋内に導く通路と、建屋内の空気を建屋外に排
    出する通路とを備えた外気処理ユニットにおいて、 除霜運転時に、建屋内の空気を室内機に導き、室内機を
    通った空気を建屋外に排出する第1の通路と、外気を室
    内機を通さずに加熱器を通して建屋内に導く第2の通路
    とを備えたことを特徴とする外気処理ユニット。
    3. An outside air processing unit comprising a passage for guiding the temperature and / or humidity of the outside air into the building by an indoor unit and a passage for discharging the air in the building to the outside of the building, during defrosting operation. , A first passage for guiding the air inside the building to the indoor unit and discharging the air passing through the indoor unit to the outside of the building, and a second passage for guiding the outside air into the building through the heater without passing through the indoor unit. An outside air treatment unit characterized by being provided.
JP11196594A 1994-04-27 1994-04-27 Outside air treatment unit Expired - Fee Related JP3207043B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11196594A JP3207043B2 (en) 1994-04-27 1994-04-27 Outside air treatment unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11196594A JP3207043B2 (en) 1994-04-27 1994-04-27 Outside air treatment unit

Publications (2)

Publication Number Publication Date
JPH07294070A true JPH07294070A (en) 1995-11-10
JP3207043B2 JP3207043B2 (en) 2001-09-10

Family

ID=14574586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11196594A Expired - Fee Related JP3207043B2 (en) 1994-04-27 1994-04-27 Outside air treatment unit

Country Status (1)

Country Link
JP (1) JP3207043B2 (en)

Cited By (5)

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JP2011052883A (en) * 2009-09-01 2011-03-17 Mitsubishi Electric Corp Air conditioner
WO2013038439A1 (en) * 2011-09-13 2013-03-21 三菱電機株式会社 Refrigeration and air-conditioning device
WO2013038438A1 (en) * 2011-09-13 2013-03-21 三菱電機株式会社 Refrigeration and air-conditioning device
CN104180570A (en) * 2014-07-30 2014-12-03 珠海格力电器股份有限公司 Defrosting control method and system of heat pump air-conditioning unit
JP2015224810A (en) * 2014-05-27 2015-12-14 清水建設株式会社 Air conditioning system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011052883A (en) * 2009-09-01 2011-03-17 Mitsubishi Electric Corp Air conditioner
JP5661190B2 (en) * 2011-09-13 2015-01-28 三菱電機株式会社 Refrigeration air conditioner
WO2013038438A1 (en) * 2011-09-13 2013-03-21 三菱電機株式会社 Refrigeration and air-conditioning device
CN103797308A (en) * 2011-09-13 2014-05-14 三菱电机株式会社 Refrigeration and air-conditioning device
CN103797309A (en) * 2011-09-13 2014-05-14 三菱电机株式会社 Refrigeration and air-conditioning device
US9797648B2 (en) 2011-09-13 2017-10-24 Mitsubishi Electric Corporation Refrigerating and air-conditioning apparatus for use in a defrosting operation
WO2013038439A1 (en) * 2011-09-13 2013-03-21 三菱電機株式会社 Refrigeration and air-conditioning device
JPWO2013038439A1 (en) * 2011-09-13 2015-03-23 三菱電機株式会社 Refrigeration air conditioner
EP2757326A4 (en) * 2011-09-13 2015-05-20 Mitsubishi Electric Corp Refrigeration and air-conditioning device
CN103797309B (en) * 2011-09-13 2016-05-18 三菱电机株式会社 Refrigerating air-conditioning
US9835368B2 (en) 2011-09-13 2017-12-05 Mitsubishi Electric Corporation Refrigerating and air-conditioning apparatus for use in a defrosting operation
JP2015224810A (en) * 2014-05-27 2015-12-14 清水建設株式会社 Air conditioning system
CN104180570A (en) * 2014-07-30 2014-12-03 珠海格力电器股份有限公司 Defrosting control method and system of heat pump air-conditioning unit

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