JPS6273029A - Controlling device for air conditioner - Google Patents
Controlling device for air conditionerInfo
- Publication number
- JPS6273029A JPS6273029A JP60213114A JP21311485A JPS6273029A JP S6273029 A JPS6273029 A JP S6273029A JP 60213114 A JP60213114 A JP 60213114A JP 21311485 A JP21311485 A JP 21311485A JP S6273029 A JPS6273029 A JP S6273029A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- electric heater
- heating operation
- compressor
- frost
- 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
Links
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は四方弁を切換えて冷房暖房運転が行なえる空気
調和機の制御に関し、特に室外側熱交換器の前箱時の運
転装置に関するものである。Detailed Description of the Invention (a) Industrial Application Field The present invention relates to the control of an air conditioner that can perform cooling/heating operation by switching a four-way valve, and particularly relates to an operating device for the front box of an outdoor heat exchanger. It is something.
（ロ）従来の技術
一般に従来の空気調和機の制御としては特公昭５１−１
２３４７号公報に記載されているようなものがあった。(b) Conventional technology In general, the conventional control of air conditioners is
There was something like the one described in Publication No. 2347.
この公報には、四方弁を切換えてヒートポンプサイクル
による暖房運転を行なうものが記載されており、室外熱
交換器に着霜が生じ除霜スイッチが作動すると、再度四
方弁を切換えて、圧縮機を運転しホヴトガスによる除霜
運転を行なうものが記載されていた。この除霜運転中に
は室内ファンの風量を低下させ同時に補助電気ヒータを
通電して冷風の吹き出しを防止していた。This publication describes a system that performs heating operation using a heat pump cycle by switching the four-way valve. When frost forms on the outdoor heat exchanger and the defrost switch is activated, the four-way valve is switched again to restart the compressor. There was a description of one that operates and performs defrosting operation using Hovto gas. During this defrosting operation, the air volume of the indoor fan was reduced and, at the same time, the auxiliary electric heater was energized to prevent cold air from blowing out.
（ハ）発明が解決しようとする問題点
このような空気調和機では、除霜運転中は冷凍サイクル
が冷房運転のサイクルとなり、実質的に暖房運転が中断
されるものであった。尚、補助電気ヒータを用いて加熱
を行なっているが、これは除霜運転中に室内側熱交換器
で冷却される分を補っているに過ぎなかった。従って、
特に外気温度が低い時などは除霜運転の時間が長くなり
、なかなか暖房運転が行なわれない問題点があった。(c) Problems to be Solved by the Invention In such an air conditioner, the refrigeration cycle becomes the cooling cycle during the defrosting operation, and the heating operation is essentially interrupted. Although heating was performed using an auxiliary electric heater, this only compensated for the amount of cooling that would occur in the indoor heat exchanger during defrosting operation. Therefore,
Particularly when the outside air temperature is low, the defrosting operation takes a long time, making it difficult to perform the heating operation.
斯る問題点に鑑み、本発明は連続した暖房運転の行なえ
る制御装置を提イ井−Ｃるものである。In view of these problems, the present invention proposes a control device that can perform continuous heating operation.
（に）問題点を解決するための手段
本発明は圧縮機、四方弁、室内側熱交換器、減圧装置、
室外側熱交換器を順次接続して冷凍サイクルを構成し、
室内側熱交換器と同−風路内に電気ヒータを有し冷暖房
運転可能な空気調和機において、室外側熱交換器の着霜
を検出する着霜検出部と、暖房運転時に着霜検出部の出
力で圧縮機の運転を停止し、かつ電気ヒータの通電を行
なう制御部とを備えたものである。(to) Means for solving the problems The present invention provides a compressor, a four-way valve, an indoor heat exchanger, a pressure reducing device,
Configure a refrigeration cycle by sequentially connecting outdoor heat exchangers,
In an air conditioner that has an electric heater in the same air path as the indoor heat exchanger and is capable of cooling and heating operation, there is a frost detection section that detects frost on the outdoor heat exchanger, and a frost detection section during heating operation. The controller is equipped with a control section that stops the operation of the compressor and energizes the electric heater at the output of the compressor.
（ホ）作用
本発明の空気調和機の制御装置では、室外側熱交換器が
着霜していない時はヒートポンプサイクルによる暖房運
転が行なえ、着霜時には電気ヒータ（てよる暖房運転が
行なえるものである。(E) Function The air conditioner control device of the present invention can perform heating operation using a heat pump cycle when the outdoor heat exchanger is not frosted, and when frost has formed, heating operation can be performed using an electric heater. It is.
（へ）実施例
以下不発明の実施例を図面に基ついて説明すると、まず
第１図は本発明の制御装置を用いる空気、調和機の概略
図であり、圧縮機（１）、四方弁（２）、室内側熱交換
器（３）、減圧装置（４）、室外側熱交換器（５）を冷
媒配管で環状に接続して冷凍サイクルを構成している。Embodiments Below, embodiments of the invention will be explained with reference to the drawings. First, Fig. 1 is a schematic diagram of an air conditioner using the control device of the present invention. 2) A refrigeration cycle is constructed by connecting an indoor heat exchanger (3), a pressure reducing device (4), and an outdoor heat exchanger (5) in a ring shape through refrigerant piping.
四方弁（２）が通電状態（図の実線の状態）にある時は
、圧縮機（１）から吐出された冷媒が実線矢印の方向て
流れ室内側熱交換器（３）、室外側熱交換器（５）が夫
々凝縮器、蒸発器として作用して室内の暖房運転を行な
うものである。When the four-way valve (2) is energized (the state indicated by the solid line in the figure), the refrigerant discharged from the compressor (1) flows in the direction of the solid arrow to the indoor heat exchanger (3) and the outdoor heat exchanger. The container (5) functions as a condenser and an evaporator, respectively, to perform indoor heating operation.
四方弁（２）が非通電状態（図の点線の状態）にある時
は圧縮機（１）から吐出された冷媒が点線矢印の方向に
流れ室内側熱交換器（３）、室外側熱交換器（５）が夫
々蒸発器、凝縮器として作用して室内の冷房運転を行な
うものである。When the four-way valve (2) is in a de-energized state (the state indicated by the dotted line in the figure), the refrigerant discharged from the compressor (1) flows in the direction of the dotted arrow, passing through the indoor heat exchanger (3) and the outdoor heat exchanger. The container (5) functions as an evaporator and a condenser, respectively, to perform indoor cooling operation.
（６）は室内ファン（プロペラファン）であり、このフ
ァンの風路内に室内側熱交換器＋３１及び電気ヒータ（
力がある。（８）は室外ファン（プロペラファン）であ
り、このファンの風路内に室外側熱交換器（５）がある
。（９）はファン（６）（力を駆動するファンモータで
ある。(6) is an indoor fan (propeller fan), and an indoor heat exchanger +31 and an electric heater (
have power. (8) is an outdoor fan (propeller fan), and an outdoor heat exchanger (5) is provided in the air path of this fan. (9) is a fan motor that drives the fan (6).
尚、α■は外気温度を検出する外気温センサ、ＤＩ）は
室外側熱交換器（５）の温度を検出する熱交センサであ
る。Note that α■ is an outside temperature sensor that detects the outside air temperature, and DI) is a heat exchange sensor that detects the temperature of the outdoor heat exchanger (5).
第２図は本発明による制御装置の要部電気回路図であり
、まず（１２＋は運転モードの選択スイッチであり、冷
房運転（ＣＯＯＬ ）、送風運転（ＦＡＮ）、暖房運転
（ＨＥＡＴ）を選択でき、冷房、暖房運転はさらにファ
ンモータ（９）の速度を強■、中−１弱（υて設定でき
るものである。この選択スイッチ口ｚの端子（１）、（
２）、＋３１ Ｋ ハ夫ｈ ７７ ンモ−タ（９１１１
７）端子へ・υ、（口、■が夫々接続されている。FIG. 2 is an electrical circuit diagram of the main part of the control device according to the present invention. First, (12+ is an operation mode selection switch, which can select cooling operation (COOL), fan operation (FAN), and heating operation (HEAT). , cooling, and heating operation can further set the speed of the fan motor (9) to high, medium to low (υ).
2), +31 K H 77 motor (9111
7) υ, (mouth, ■) are connected to the terminals, respectively.
（１３１は室温センサであり、設定値と室温とに応じて
接片が切り換るものである。(131 is a room temperature sensor, and the contact piece is switched according to the set value and the room temperature.
（１世′！着霜検出部であり、外気温センサ（１０）と
熱交センサ旧）とからなっており、外気温度が１．５度
以下または熱交温度が一７度以下で出力を出すものであ
る。しは暖房運転時て通電されるリレーであり、常開接
片側及び切換接片１１ｎ＋を有している。尚、四方弁（
２）はリレー０５と並列て接続されている。(1st generation'! Frost formation detection unit, consisting of an outside temperature sensor (10) and an old heat exchanger sensor), outputs when the outside temperature is 1.5 degrees or less or the heat exchanger temperature is 17 degrees or less. It is something to put out. This is a relay that is energized during heating operation, and has a normally open contact side and a switching contact piece 11n+. In addition, the four-way valve (
2) is connected in parallel with relay 05.
ａ）言常開接片ｌを有するリレーであり、着箱検出部圓
の出力に常開接片α６）及び電気ヒータ（７）の保穫サ
ーモ接片Ｃαを介して接続されている。尚、Ｑυはリレ
ー０８１と並列に接続されたリレーであり、常閉接片（
２カを有している。a) It is a relay having a normally open contact l, and is connected to the output of the box arrival detection unit via a normally open contact α6) and a thermostat contact Cα of the electric heater (7). In addition, Qυ is a relay connected in parallel with relay 081, and has a normally closed contact (
It has two powers.
θは常開接片ｔ２４１を有するリレーであり、常閉接片
四を介して切換接片Ｑ７ｉの常閉端子側に接続されてい
る。θ is a relay having a normally open contact piece t241, and is connected to the normally closed terminal side of the switching contact piece Q7i via a normally closed contact piece 4.
また圧縮機（１）は、圧縮機（１）の保循サーモ接片■
及び常開接片Ｑ・０を介して電源母線間に接続されてい
る。In addition, the compressor (1) is equipped with a circulating thermo contact of the compressor (1).
and the power supply bus through a normally open contact Q.0.
尚、（イ）は圧縮機＋１）及びファンモータ（９）の運
転コンデンサであり、罰は電気ヒータ（７）用の電流ヒ
ユーズである。Note that (a) is the operating capacitor for the compressor +1) and fan motor (9), and the other is the current fuse for the electric heater (7).
以上のように構成された着霜検出部及び制御部を有す制
御−ｇ、嫂を用いて空気調和機の運転を行なう場合、ま
ず選択スイ・／チ（＋２１を冷房運転に設定した時は四
方弁（２）が非通電状態となり冷房運転のサイクルとな
る。次に室温センサｕ３１に設定された値より室温が高
くなれは、リレーＣＩ！３）が通電され、常開接片（２
４１が閉じて圧縮機（１１の運転が開始される。When operating an air conditioner using a controller having a frost detection section and a control section configured as described above, first select the selection switch /ch (when +21 is set to cooling operation). The four-way valve (2) becomes de-energized and the cooling operation cycle begins.Next, when the room temperature becomes higher than the value set in the room temperature sensor u31, the relay CI!3) is energized and the normally open contact (2) is turned on.
41 is closed and the compressor (11) starts operating.
すなわち冷房運転が行なわれる。In other words, cooling operation is performed.
選択スイッチ（＋２１を暖房運転に設定すると、まず四
方弁（２）が通′直されて暖房運転のヒートポンプサイ
クルとなる。同時にリレー（１５が通電され常開接片側
が閉じ、切換接片０ηが常開端子側に切換る。When the selection switch (+21) is set to heating operation, the four-way valve (2) is first re-energized and the heat pump cycle starts in heating operation.At the same time, the relay (15) is energized, one side of the normally open contact is closed, and the switching contact 0η is turned on. Switch to normally open terminal side.
切換接片（１７１が切換って着霜検出部０４１に電源が
供給される。室温が室温センサＵの設定値より小さけれ
はリレー（２四が］１電され、常開接片（２）が閉じて
圧縮機ｆ１）の運転が開始される。尚、ファンモータ（
９）は設定速度で回転しファン（６）、（８）を駆動し
ている。The switching contact (171) switches and power is supplied to the frost detection unit 041. If the room temperature is lower than the set value of the room temperature sensor U, the relay (24) is energized and the normally open contact (2) is switched on. When the compressor f1) is closed, the operation of the compressor f1 is started.
9) rotates at a set speed and drives fans (6) and (8).
このような暖房運転を続けるうち圧気気温が低下するか
室外熱交換器（５）の温度が像下すると室外側Ｐ交換器
（５）がｔＪ’Ｊしたと判断し、出力が閉じた常開接片
０６１を介してリレー（１８１、ＣＤが通′区される。As this heating operation continues, if the pressure air temperature decreases or the temperature of the outdoor heat exchanger (5) drops, it is determined that the outdoor P exchanger (5) has reached tJ'J, and the output is closed to the normally open state. A relay (181, CD) is connected through the contact piece 061.
これによって常開接片（１」が閉じ電気ヒータ（力が通
電される。同時に常閉接片（２）が開いて圧縮機（１）
の運転か停止する。すなわち、電気ヒータ（力と室内フ
ァン（６）とによる暖房運転が行なわれるものである。This closes the normally open contact (1) and energizes the electric heater (power). At the same time, the normally closed contact (2) opens and connects the compressor (1).
start or stop. That is, heating operation is performed using an electric heater (power) and an indoor fan (6).
この後、室外側熱交換器（５）の着霜状態が解除される
とリレー（１団、ＣＤへの通電が遮断されて、再び圧縮
機（１）が運転されてヒートポンプサイクルによる暖房
運転が行われるものである。After that, when the frost on the outdoor heat exchanger (5) is removed, power to the relays (1 group and CD) is cut off, the compressor (1) is operated again, and heating operation using the heat pump cycle is resumed. It is something that is done.
（ト）発明の効果
本発明は圧縮機、四方弁、室内側熱交換器、減圧装置、
室外側熱交換器を順次接続して冷凍サイクルを構成し、
室内側熱交換器と同−風路内に電気ヒータを有し冷暖房
運転可能な空気調和機において、室外側熱交換器の着霜
を検出する着霜検出部と、暖房運転時て着霜検出部の出
力で圧縮機の運転を停止し、かつ電気ヒータの通電を行
なう制御部とを備えたので、室外側熱交換器（５）に着
霜がない時はヒートポンプサイクルによる暖房運転を行
ない、室外側熱交換器（５）が着霜した時は、圧縮機の
運転を停止して電気ヒータによる暖房運転が行なわれ、
常に連続した暖房運転が維持されるものである。(g) Effects of the invention The present invention provides a compressor, a four-way valve, an indoor heat exchanger, a pressure reducing device,
Configure a refrigeration cycle by sequentially connecting outdoor heat exchangers,
In an air conditioner that has an electric heater in the same air path as the indoor heat exchanger and is capable of cooling and heating operation, there is a frost detection unit that detects frost on the outdoor heat exchanger, and a frost detection unit that detects frost formation during heating operation. Since the controller is equipped with a control unit that stops the operation of the compressor and energizes the electric heater based on the output of the unit, when there is no frost on the outdoor heat exchanger (5), heating operation is performed using the heat pump cycle. When the outdoor heat exchanger (5) becomes frosted, the operation of the compressor is stopped and heating operation is performed using the electric heater.
Continuous heating operation is always maintained.
第１図は本発明を用いる空気調和機の一例を示す概略図
、第２図は第１図に示した空気調和機の制御装置に用い
る要部な気回路図である。
（１）・・・圧縮機、 （２）・・四方弁、 （３）・
・・室内側熱交換器、 （４）・・・減圧装置僕、 （
５）・・・室外側熱交換器、（力・・・電気ヒータ、
α４・・・着霜検出部。
第１図
第２図FIG. 1 is a schematic diagram showing an example of an air conditioner using the present invention, and FIG. 2 is an air circuit diagram of essential parts used in the control device for the air conditioner shown in FIG. (1)...Compressor, (2)...Four-way valve, (3)...
... Indoor heat exchanger, (4) ... Pressure reducing device, (
5)...Outdoor heat exchanger, (power...electric heater,
α4... Frost detection section. Figure 1 Figure 2
Claims (1)
外側熱交換器を順次接続して冷凍サイクルを構成し、室
内側熱交換器と同一風路内に電気ヒータを有し冷暖房運
転可能な空気調和機において、室外側熱交換器の着霜を
検出する着霜検出部と、暖房運転時に着霜検出部の出力
で圧縮機の運転を停止し、かつ電気ヒータの通電を行な
う制御部とを備えたことを特徴とする空気調和機の制御
装置。(1) A refrigeration cycle is constructed by sequentially connecting a compressor, four-way valve, indoor heat exchanger, pressure reducing device, and outdoor heat exchanger, and an electric heater is located in the same air path as the indoor heat exchanger. An air conditioner capable of heating and cooling operation has a frost detection section that detects frost on the outdoor heat exchanger, and an output from the frost detection section that stops compressor operation during heating operation and turns on electricity to the electric heater. 1. A control device for an air conditioner, comprising: a control section for controlling the air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213114A JPS6273029A (en) | 1985-09-26 | 1985-09-26 | Controlling device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213114A JPS6273029A (en) | 1985-09-26 | 1985-09-26 | Controlling device for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6273029A true JPS6273029A (en) | 1987-04-03 |
Family
ID=16633811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60213114A Pending JPS6273029A (en) | 1985-09-26 | 1985-09-26 | Controlling device for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6273029A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050049953A (en) * | 2003-11-24 | 2005-05-27 | 엘지전자 주식회사 | A dehumidifier for both heating and dehumidifing |
| CN112537184A (en) * | 2020-12-25 | 2021-03-23 | 广东积微科技有限公司 | Control method suitable for defrosting and heating of air conditioner of motor home |
-
1985
- 1985-09-26 JP JP60213114A patent/JPS6273029A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050049953A (en) * | 2003-11-24 | 2005-05-27 | 엘지전자 주식회사 | A dehumidifier for both heating and dehumidifing |
| CN112537184A (en) * | 2020-12-25 | 2021-03-23 | 广东积微科技有限公司 | Control method suitable for defrosting and heating of air conditioner of motor home |
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