JPH04187939A - Space heating and cooling apparatus - Google Patents
Space heating and cooling apparatusInfo
- Publication number
- JPH04187939A JPH04187939A JP2319046A JP31904690A JPH04187939A JP H04187939 A JPH04187939 A JP H04187939A JP 2319046 A JP2319046 A JP 2319046A JP 31904690 A JP31904690 A JP 31904690A JP H04187939 A JPH04187939 A JP H04187939A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- compressor
- heater
- signal
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 17
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は冷房時は圧縮機を利用し、暖房時は圧縮機以外
の冷媒搬送手段と冷媒加熱器を利用する暖冷房機の制御
装置に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a control device for a heating/cooling machine that uses a compressor for cooling and uses a refrigerant conveying means other than the compressor and a refrigerant heater for heating. be.
従来の技術
従来この種の暖冷房機は、例えば特開昭５７−１０１２
６３号公報に示されているように、第３図のような構成
になっている。2. Description of the Related Art Conventionally, this type of heating/cooling device has been disclosed, for example, in Japanese Patent Application Laid-open No. 57-1012.
As shown in Japanese Patent No. 63, it has a configuration as shown in FIG.
すなわち、圧縮機加熱ヒータ２を具備した圧縮機１、四
方弁３、室外熱交換器用ファン５を有する室外熱交換器
４、第１電磁弁６、キャピラリチューブ７、室内熱交換
器用ファン９を有する室内熱交換器８、第２電磁弁１０
、逆止弁１１、アキュムレータ１２を順に配管した循環
回路を構成する。また、第３電磁弁１３、冷媒ポンプ】
４、バーナ１６で加熱される冷媒加熱器１５の直列配管
回路をキャピラリチューブ７の下流と第２電磁弁ｌＯの
上流との間に接続している。そして、冷房は室外熱交換
器４を凝縮器とし、室内熱交換器８を蒸発器として圧縮
機１の運転による冷房サイクルを構成し、暖房運転は冷
媒加熱器１５をバーナ１６で加熱することにより蒸発器
とし、室内熱交換Ｈ８を凝縮器として、冷媒ポンプを冷
媒搬送手段として暖房サイクルを構成し、圧縮機ｌへの
冷媒滞溜を防ぐと共に暖房運転時に行なわれる冷媒回収
運転を短縮するために、圧縮機の温度を所定値に保つご
とく圧縮機加熱ヒータ２を運転するための圧縮機温度検
知部を有している。また図に示されていないが圧縮機１
の温度異常上昇時の安全保護として温度スイッチを別途
使用するのが通常である。That is, it has a compressor 1 equipped with a compressor heater 2, a four-way valve 3, an outdoor heat exchanger 4 having an outdoor heat exchanger fan 5, a first electromagnetic valve 6, a capillary tube 7, and an indoor heat exchanger fan 9. Indoor heat exchanger 8, second solenoid valve 10
, a check valve 11, and an accumulator 12 are arranged in this order to form a circulation circuit. In addition, the third solenoid valve 13, the refrigerant pump]
4. A series piping circuit of the refrigerant heater 15 heated by the burner 16 is connected between the downstream of the capillary tube 7 and the upstream of the second electromagnetic valve IO. For cooling, a cooling cycle is constructed by operating the compressor 1 using the outdoor heat exchanger 4 as a condenser and the indoor heat exchanger 8 as an evaporator, and for heating operation, the refrigerant heater 15 is heated by the burner 16. A heating cycle is constructed using the evaporator, the indoor heat exchanger H8 as the condenser, and the refrigerant pump as the refrigerant transport means, in order to prevent refrigerant from accumulating in the compressor 1 and to shorten the refrigerant recovery operation performed during heating operation. , has a compressor temperature detection section for operating the compressor heater 2 to maintain the temperature of the compressor at a predetermined value. Although not shown in the figure, the compressor 1
Normally, a separate temperature switch is used for safety protection in the event of an abnormal rise in temperature.
以上の構成で暖房運転開始時には第１電磁弁６を閉成し
、四方弁３を圧縮機１の吐出冷媒ガスが室内熱交換器８
へ流れるように切換え、圧縮機ｌを運転する。このよう
にすることにより室外熱交換器４．アキュムレータ１２
等からの冷媒回収運転を所定時間待なった後、冷媒加熱
器１５．冷媒ポンプ１４を運転開始すると共に、圧縮機
１を停止させる構成となっている。With the above configuration, when heating operation starts, the first solenoid valve 6 is closed, and the four-way valve 3 is connected to the indoor heat exchanger 8 so that the refrigerant gas discharged from the compressor 1 is transferred to the indoor heat exchanger 8.
The compressor l is operated. By doing this, the outdoor heat exchanger 4. Accumulator 12
After waiting for a predetermined period of time for the refrigerant recovery operation from the refrigerant heater 15. The configuration is such that the refrigerant pump 14 starts operating and the compressor 1 is stopped.
発明が解決しようとする課題
しかし、上記のような構成では、圧縮機の温度異常上昇
時の安全保護として温度スインチ１ヶだけであり、この
温度スイッチの取付は不良等で温度スイッチが正常に作
動しなかった場合、圧縮機の保護が完全にできないとい
った問題がある。また、温度スイッチが作動すると自動
復帰式のものでも、圧縮機の熱容量が大きく、また復帰
までの温度差を大きく設計されているために復帰に長時
間を要するといった課題を有していた。Problems to be Solved by the Invention However, in the above configuration, there is only one temperature switch for safety protection in the event of an abnormal rise in the temperature of the compressor, and due to a defective installation of this temperature switch, the temperature switch may not operate properly. If this is not done, there is a problem that the compressor cannot be completely protected. Furthermore, even those that automatically return when the temperature switch is activated have a problem in that it takes a long time to recover because the compressor has a large heat capacity and is designed with a large temperature difference until recovery.
本発明はかかる従来の課題を解決するもので、圧縮機の
温度異常上昇時の安全保護手段を２重に設けることで安
全保護の信転性の向上を目的としている。The present invention is intended to solve such conventional problems, and aims to improve the reliability of safety protection by providing a double safety protection means when the temperature of the compressor increases abnormally.
課題を解決するための手段
上記課題を解決するため乙こ、本発明の暖冷房機は、圧
縮機の温度を検知してその信号で圧縮機駆動部の開閉を
行なうための温度検知手段と、圧縮機の温度検知により
開成する接点を有し、その接点で直接圧縮機の電源回路
を開成する構造の温度スイッチを有する構成とし、また
、上記温度検知手段の信号により制御される圧縮機加熱
ヒータを有する構成としたものである。Means for Solving the Problems In order to solve the above problems, the heating/cooling machine of the present invention includes a temperature detection means for detecting the temperature of the compressor and opening/closing the compressor drive section based on the signal; The compressor heater is configured to have a temperature switch that has a contact that opens upon detection of the temperature of the compressor and that directly opens the power supply circuit of the compressor with the contact, and is controlled by a signal from the temperature detection means. The configuration has the following.
作用
本発明は上記した構成によって、温度検知手段による圧
縮機駆動部の開閉による圧縮機の異常温度上昇保護と、
直接圧縮機の電源回路を開成する接点を有する温度スイ
ッチによる圧縮機の異常温度上昇保護と２重の安全保護
手段を用いるため、例えどちらかの手段が作動不能にな
った時でも圧縮機の異常温度上昇に対する安全保護の信
顧性が大巾に向上する。また、温度検知手段を圧縮機加
熱ヒータの制御用として使用することで材料費の低減の
効果がある。Operation The present invention has the above-described configuration, and protects the compressor from abnormal temperature rise by opening and closing the compressor drive section using the temperature detection means.
A temperature switch with a contact point that directly opens the compressor power supply circuit protects the compressor from abnormal temperature rises, and double safety protection measures are used, so even if one of the measures becomes inoperable, the compressor will not malfunction. The reliability of safety protection against temperature rises is greatly improved. Further, by using the temperature detection means for controlling the compressor heater, there is an effect of reducing material costs.
実施例
以下、本発明の一実施例について添付図面にもとづいて
説明する。EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings.
第１図は本発明のシステムブロック図を、第２図は電気
回路ブロック図を示す。図中、第３図の従来例と同じ構
成部品には同し符号を付して詳細な説明を省略し、異な
る部分を中心に説明する。FIG. 1 shows a system block diagram of the present invention, and FIG. 2 shows an electric circuit block diagram. In the figure, the same components as in the conventional example of FIG. 3 are given the same reference numerals, detailed explanations are omitted, and different parts will be mainly explained.
１７は圧縮機１の温度を検知する温度検知手段、１８は
圧縮機加熱ヒータ駆動部、１９は圧縮機駆動部、２０は
温度検知手段１７の信号を受ける低い設定温度比較部で
、２１は高い設定温度比較部である。２２は温度スイッ
チで、圧縮Ｉ！■の温度を検知により開成する接点を有
し、その接点で直接、圧縮機１の電源回路を開成する構
造のもので、例えばバイメタル式のサーモスタット液膨
張式１ガス膨脹式等のサーモスタット等である。前記低
い設定温度比較部２０の設定温度は圧縮ＩＩｊ、１の冷
媒滞溜を最小限にする目的として、暖冷房機の設置され
る雰囲気温度よりも高く設定される。また、暖房運転開
始時に圧縮機１を駆動して、室外熱交換器４内の冷媒を
室内熱交換器８側へ冷媒回収運転する際に冷媒回収運転
所要時間の短縮と油持ち出し低減のために必要な圧縮機
温度は４０°Ｃ以上であるために、上記低い設定温度は
暖冷房機の設置される雰囲気温度の最高温度より若干高
めの４０〜４５°Ｃに設定される。前記高い設定温度比
較部２１の設定温度と、温度スイッチ２２の設定温度は
圧縮機の温度異常上昇時の安全保護が目的であるため、
圧縮＠１の運転許容上限温度に近い温度で設定されるが
、前記高い、設定温度比較部２１の設定温度を温度スイ
ノチ２２の設定温度より低く設定しておく。17 is a temperature detection means for detecting the temperature of the compressor 1; 18 is a compressor heater drive section; 19 is a compressor drive section; 20 is a low set temperature comparison section that receives the signal from the temperature detection means 17; and 21 is a high set temperature comparison section. This is a set temperature comparison section. 22 is a temperature switch, compression I! (2) It has a contact point that opens when the temperature is detected, and the contact point directly opens the power circuit of the compressor 1, such as a bimetal type thermostat, a liquid expansion type 1, a gas expansion type thermostat, etc. . The set temperature of the low set temperature comparison section 20 is set higher than the ambient temperature in which the air conditioner is installed, in order to minimize refrigerant accumulation in compression IIj, 1. In addition, when the compressor 1 is driven at the start of heating operation and the refrigerant in the outdoor heat exchanger 4 is recovered to the indoor heat exchanger 8 side, in order to shorten the time required for the refrigerant recovery operation and reduce oil carried out. Since the necessary compressor temperature is 40°C or higher, the low set temperature is set at 40 to 45°C, which is slightly higher than the maximum temperature of the atmosphere where the air conditioner is installed. The set temperature of the high set temperature comparison section 21 and the set temperature of the temperature switch 22 are intended for safety protection when the temperature of the compressor rises abnormally.
Although the temperature is set close to the operating permissible upper limit temperature of compression@1, the set temperature of the high set temperature comparison section 21 is set lower than the set temperature of the temperature switch 22.
上記構成において、圧縮機１の温度を検知する温度検知
手段１７の信号を受けて低い設定温度比較部２０の比較
結果で、設定値より圧縮機温度が低い場合は圧縮機加熱
ヒータ駆動部１８により圧縮機加熱ヒータ２を駆動し、
設定値より高い場合は圧縮機加熱ヒータ２の駆動を停止
することにより圧縮Ｉ！■の温度を所定の温度以上に保
つ。一方、圧縮Ｉ！■の温度が異常に上昇してきて、前
記高い設定温度比較部２１の設定温度以上になると、圧
縮機駆動部１９により圧縮機駆動が停止され、それ以上
の温度上昇を防止する。例えば、温度検知手段１７又は
、圧縮機駆動部１９の不良等で圧縮機１が連続運転され
て、さらに温度上昇が発生する場合は温度スイッチ２２
の接点が開成することで、圧縮機」の運転が停止され、
温度異常上昇の防止を行なうものである。In the above configuration, if the compressor temperature is lower than the set value based on the comparison result of the low set temperature comparison unit 20 after receiving the signal from the temperature detection means 17 that detects the temperature of the compressor 1, the compressor heater drive unit 18 Drive the compressor heater 2,
If it is higher than the set value, the compression I! is stopped by stopping the drive of the compressor heater 2. ■Keep the temperature above the specified temperature. On the other hand, compression I! When the temperature (2) abnormally rises and becomes equal to or higher than the set temperature of the high set temperature comparing section 21, the compressor driving section 19 stops driving the compressor to prevent the temperature from rising any further. For example, if the compressor 1 is operated continuously due to a defect in the temperature detection means 17 or the compressor drive unit 19, and the temperature further increases, the temperature switch 22
When the contact opens, the operation of the compressor is stopped.
This is to prevent abnormal temperature rise.
発明の効果
以上のように本発明の暖冷房機によれば次の効果が得ら
れる。Effects of the Invention As described above, the heating/cooling machine of the present invention provides the following effects.
（１）圧縮機の温度を検知してその信号で圧縮機駆動部
の開閉を行なうための温度検知手段と、圧縮機の温度検
知により開成する接点を有し、その接点で直接圧縮機の
電源回路を開成する構造の温度スイッチを設けているか
ら、圧縮機の温度異常上昇に対して２重の安全対策とな
り、安全保護の信転性が大巾に向上する。(1) It has a temperature detection means for detecting the temperature of the compressor and opening/closing the compressor drive section based on the signal, and a contact that opens when the temperature of the compressor is detected, and the contact directly powers the compressor. Since the temperature switch is provided with a structure that opens the circuit, it becomes a double safety measure against an abnormal rise in the temperature of the compressor, and the reliability of safety protection is greatly improved.
（２）温度検知手段の設定温度を温度スイッチの設定温
度以下に設定することで、再復帰運転を比較的単時間に
行なえるように任意に設定できる。(2) By setting the set temperature of the temperature detection means below the set temperature of the temperature switch, it is possible to arbitrarily set the return operation so that it can be performed in a relatively short period of time.
（３）温度検知手段の信号により圧ｍ機加熱ヒータの運
転制御を行なわせるので、温度検知手段の数を１ケ減す
ることができるため、それによる材料費低減、組立作業
性の向上が可能となる。(3) Since the operation of the compressor heater is controlled by the signal from the temperature detection means, the number of temperature detection means can be reduced by one, thereby reducing material costs and improving assembly work efficiency. becomes.
第１図は本発明の一実施例における暖冷房機のシステム
構成図、第２図は同電気回路図、第３図は従来例を説明
するシステム構成図である。
１・・・・・・圧縮機、２・・・・・・圧縮機加熱ヒー
タ、４・・・・・・室外熱交換器、７・・・・・・キャ
ピラリチューブ、８・・・・・・室内熱交換器、１７・
・・・・・圧縮機温度検知手段、１日・・・・・・圧縮
機加熱ヒータ駆動部、１９・・・・・・圧縮機駆動部、
２０・・・・・・低い設定温度比較部、２１・・・・・
・高い設定温度比較部、２２・・・・・・温度スイッチ
。
代理人の氏名 弁理士 小鍜治 明 ほか２名１−−−
尺ｒ？Ｉ猟
Ｚ −圧＝ １ 磯でｌｆｆ乃と−ダ
斗 −’ｉｐ）！ シ５ 神 器
７− 干ヤビラリ予＄−フ゛
ε −ｙ Ｆｒ ｙ 女攻溢、
Ｉ７ −星扁＄、′ｊＬ濯検π号Ｉ炎
１８ 丘−ｆｉｆｆＩ 弔飄加忙ヒータｌす咲帥１
９− 圧綿携島り勤評
Ｚθ ノ呑、・・ 設定賃＝ｓｎ二較；Ｐ ｆFIG. 1 is a system configuration diagram of a heating/cooling device according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram thereof, and FIG. 3 is a system configuration diagram illustrating a conventional example. 1... Compressor, 2... Compressor heater, 4... Outdoor heat exchanger, 7... Capillary tube, 8...・Indoor heat exchanger, 17・
... Compressor temperature detection means, 1 day ... Compressor heater drive section, 19 ... Compressor drive section,
20...Low set temperature comparison section, 21...
- High set temperature comparison section, 22...Temperature switch. Name of agent: Patent attorney Akira Okaji and two others 1---
Shaku r? I hunting Z - pressure = 1 Iso de lffno and - dato -'ip)! shi 5 sacred vessel 7 - dried yabirari yo $ - ゛ε -y Fry female attack, I 7 - Star Bi $, 'jL washing test π No.
9- Compressing cotton carrying island work review Zθ No drink,... set fee = sn two comparison; P f
Claims (3)
等により冷媒回路を構成し、前記圧縮機の温度を検知し
てその信号で圧縮機駆動部の開閉を行なうための温度検
知手段と、前記圧縮機の温度検知により開成する接点を
有し、その接点で直接、圧縮機の電源回路を開成する温
度スイッチを設けた暖冷房機。(1) A refrigerant circuit is composed of a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttle device, etc., and temperature detection is used to detect the temperature of the compressor and open/close the compressor drive unit based on the signal. and a temperature switch which has a contact that opens upon detection of the temperature of the compressor, and which directly opens a power supply circuit for the compressor.
度以下とした特許請求の範囲第１項記載の暖冷房機。(2) The heating/cooling machine according to claim 1, wherein the set temperature of the temperature detection means is equal to or lower than the set temperature of the temperature switch.
ヒータを有する特許請求の範囲第１項記載の暖冷房機。(3) The heating/cooling machine according to claim 1, which has a compressor heater controlled by a signal from the temperature detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02319046A JP3087306B2 (en) | 1990-11-21 | 1990-11-21 | Heating and cooling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02319046A JP3087306B2 (en) | 1990-11-21 | 1990-11-21 | Heating and cooling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187939A true JPH04187939A (en) | 1992-07-06 |
| JP3087306B2 JP3087306B2 (en) | 2000-09-11 |
Family
ID=18105904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02319046A Expired - Lifetime JP3087306B2 (en) | 1990-11-21 | 1990-11-21 | Heating and cooling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3087306B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021038735A1 (en) * | 2019-08-28 | 2021-03-04 | 三菱電機株式会社 | Air-conditioning apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101807164B1 (en) * | 2016-08-03 | 2017-12-11 | 강우람 | Rubber power helicopter |
-
1990
- 1990-11-21 JP JP02319046A patent/JP3087306B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021038735A1 (en) * | 2019-08-28 | 2021-03-04 | 三菱電機株式会社 | Air-conditioning apparatus |
| JPWO2021038735A1 (en) * | 2019-08-28 | 2021-12-23 | 三菱電機株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3087306B2 (en) | 2000-09-11 |
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