JPH0579710A - Space heating and room cooling machine - Google Patents
Space heating and room cooling machineInfo
- Publication number
- JPH0579710A JPH0579710A JP3241040A JP24104091A JPH0579710A JP H0579710 A JPH0579710 A JP H0579710A JP 3241040 A JP3241040 A JP 3241040A JP 24104091 A JP24104091 A JP 24104091A JP H0579710 A JPH0579710 A JP H0579710A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- temperature
- heat exchanger
- heating
- cooling machine
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は暖冷房機に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating / cooling machine.
【０００２】[0002]
【従来の技術】従来、暖冷房機は、図３に示すように構
成してある。すなわち、まず圧縮機加熱ヒータ１を具備
した圧縮機２、四方弁３、室外熱交換器４、第１電磁弁
５、絞り装置６、室内熱交換器７、第２電磁弁８、逆止
弁９、アキュムレータ１０を順に配管して循環回路を構
成してある。そして、第３電磁弁１１、冷媒ポンプ１
２、冷媒加熱器１３を順に配管した直列配管回路を絞り
装置６の下流と第２電磁弁８の上流との間に接続してあ
る。2. Description of the Related Art Conventionally, a heating / cooling machine is constructed as shown in FIG. That is, first, a compressor 2 having a compressor heating heater 1, a four-way valve 3, an outdoor heat exchanger 4, a first solenoid valve 5, a throttle device 6, an indoor heat exchanger 7, a second solenoid valve 8, a check valve. A circulation circuit is constructed by sequentially connecting 9 and the accumulator 10. Then, the third solenoid valve 11 and the refrigerant pump 1
2. A serial piping circuit in which the refrigerant heater 13 is sequentially connected is connected between the downstream of the expansion device 6 and the upstream of the second solenoid valve 8.
【０００３】上記圧縮機２には、圧縮機２の温度を検知
する温度検知センサー１４を圧縮機加熱ヒータ１の下部
に設け、圧縮機２の温度及び流れている電流値を検知し
て異常時には圧縮機２の電源回路を開閉する温度上昇保
護器１５を圧縮機２の頭頂部に設けてある。なお、上記
温度検知センサー１４は圧縮機温度を検知し、圧縮機２
の温度を所定値に保つごとく圧縮機加熱ヒータ１の運転
を制御する制御回路１６を有している。In the compressor 2, a temperature detecting sensor 14 for detecting the temperature of the compressor 2 is provided below the compressor heating heater 1, and the temperature of the compressor 2 and the flowing current value are detected to detect abnormal conditions. A temperature rise protector 15 for opening and closing the power supply circuit of the compressor 2 is provided at the top of the compressor 2. The temperature detection sensor 14 detects the temperature of the compressor,
It has a control circuit 16 for controlling the operation of the compressor heater 1 so as to keep the temperature at a predetermined value.
【０００４】上記構成において、冷房は室外熱交換器４
を凝縮器とし、室内熱交換器７を蒸発器として圧縮機２
の運転による冷房サイクルを構成し、暖房は冷媒加熱器
１３を蒸発器とし、室内熱交換器７を凝縮器とし、冷媒
ポンプ１２を冷媒搬送手段として暖房サイクルを構成し
ている。そして圧縮機２への冷媒滞留を防ぐとともに暖
房運転時に行なわれる冷媒回収運転を短縮するため、圧
縮機加熱ヒータ１を運転し圧縮機２の温度を所定値に保
っている。In the above structure, the cooling is performed by the outdoor heat exchanger 4
Is used as a condenser, and the indoor heat exchanger 7 is used as an evaporator.
In the heating cycle, the refrigerant heater 13 is used as the evaporator, the indoor heat exchanger 7 is used as the condenser, and the refrigerant pump 12 is used as the refrigerant transfer means for heating. The compressor heater 1 is operated to maintain the temperature of the compressor 2 at a predetermined value in order to prevent the refrigerant from staying in the compressor 2 and shorten the refrigerant recovery operation performed during the heating operation.
【０００５】また暖房運転の開始時には冷媒回収運転と
して、第１電磁弁５を閉じ、四方弁３を切換えて圧縮機
２の吐出冷媒ガスが室内熱交換器７へ流れるようにし
て、圧縮機２を運転し、室外熱交換器４、アキュムレー
タ１０などの冷媒を暖房サイクル側へ回収するようにな
っている。At the start of the heating operation, as the refrigerant recovery operation, the first electromagnetic valve 5 is closed and the four-way valve 3 is switched to allow the refrigerant gas discharged from the compressor 2 to flow to the indoor heat exchanger 7 to make the compressor 2 To recover the refrigerant such as the outdoor heat exchanger 4 and the accumulator 10 to the heating cycle side.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、圧縮機２の温度異常上昇時の安全保護とし
ては温度上昇保護器１５だけであり、暖房運転時に行な
われる冷媒回収運転時に、室外熱交換器４やアキュムレ
ータ１０などに冷媒が無い場合や、冷媒が冷媒回路から
漏れて抜けて無くなっている場合には、圧縮機２は負荷
の無い空運転をすることになり、圧縮機２を流れる電流
値は小さく、又温度上昇の速度も小さいため、温度上昇
保護器１５は作動しない。そのため圧縮機２のモータコ
イル部の温度が異常上昇し焼損するという課題があっ
た。However, in the above-mentioned conventional structure, only the temperature rise protector 15 is provided as the safety protection when the temperature of the compressor 2 abnormally rises, and the outdoor heat is recovered during the refrigerant recovery operation performed during the heating operation. When there is no refrigerant in the exchanger 4, the accumulator 10, or the like, or when the refrigerant leaks from the refrigerant circuit and disappears, the compressor 2 is in idle operation with no load, and flows through the compressor 2. Since the current value is small and the rate of temperature rise is small, the temperature rise protector 15 does not operate. Therefore, there is a problem that the temperature of the motor coil portion of the compressor 2 abnormally rises and burns.
【０００７】本発明は上記課題を解決するもので、圧縮
機の温度異常上昇時の安全性向上を目的としたものであ
る。The present invention has been made to solve the above-mentioned problems and is intended to improve safety when the temperature of the compressor rises abnormally.
【０００８】[0008]
【課題を解決するための手段】本発明は上記目的を達成
するため、圧縮機、室内熱交換器、室外熱交換器、絞り
装置などにより冷媒回路を構成し、前記圧縮機内の圧縮
機油を加熱する圧縮機加熱ヒータと、前記圧縮機の温度
を検知して圧縮機加熱ヒータの通電を制御する温度検知
センサーと、同圧縮機の温度を検知して圧縮機の運転を
停止させる温度スイッチと、前記温度スイッチを圧縮機
に取付けるための支持金具とからなり、前記温度スイッ
チは圧縮機のモータコイル部近傍に取付けた構成として
ある。In order to achieve the above object, the present invention comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttle device, etc. to form a refrigerant circuit and heats compressor oil in the compressor. A compressor heating heater to do, a temperature detection sensor that detects the temperature of the compressor and controls energization of the compressor heating heater, and a temperature switch that detects the temperature of the compressor and stops the operation of the compressor. The temperature switch comprises a support metal fitting for attaching to the compressor, and the temperature switch is attached near the motor coil portion of the compressor.
【０００９】[0009]
【作用】本発明は上記構成によって、冷媒回収運転時に
圧縮機の負荷が無く空運転をしても、モータコイル部の
温度異常上昇を確実に検知して圧縮機の焼損を防止する
ことができる。With the above-described structure, the present invention can reliably detect the abnormal temperature rise of the motor coil portion and prevent the burnout of the compressor even when the compressor is idle and there is no load during the refrigerant recovery operation. .
【００１０】[0010]
【実施例】以下本発明の実施例を図１、図２を参照して
説明する。Embodiments of the present invention will be described below with reference to FIGS.
【００１１】図中、図３の従来例と同じ構成部品には同
じ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。In the figure, the same components as those of the conventional example of FIG. 3 are designated by the same reference numerals, detailed description thereof will be omitted, and different parts will be mainly described.
【００１２】１７は圧縮機の温度を検知して開閉する接
点を有し、その接点で圧縮機２及び圧縮機加熱ヒータ１
の電源回路を開閉する温度スイッチ、１８は温度検知セ
ンサー１４及び温度スイッチ１７を圧縮機２に取付ける
ための支持金具、１９は温度検知センサー１４及び温度
スイッチ１７を圧縮機２のモータコイル部近傍に取付け
るために上下方向及び左右方向の位置決めをするための
位置決め爪である。Reference numeral 17 has a contact for detecting and opening / closing the temperature of the compressor, and at the contact, the compressor 2 and the compressor heater 1 are connected.
A temperature switch for opening and closing the power supply circuit of 18; a support metal fitting 18 for attaching the temperature detection sensor 14 and the temperature switch 17 to the compressor 2; and 19 a temperature detection sensor 14 and the temperature switch 17 near the motor coil portion of the compressor 2. Positioning claws for positioning in the vertical and horizontal directions for mounting.
【００１３】上記構成において、以下その動作を説明す
ると、暖房運転の開始時に圧縮機２を運転し、室外熱交
換器４やアキュムレータ１０などの中の冷媒を暖房サイ
クル側へ回収するとき、室外熱交換器４内に冷媒が無い
場合など何らかの原因で圧縮機２の負荷が無い空運転を
することがある。この場合、圧縮機２を流れる電流値は
小さく又温度上昇の速度も小さいため温度上昇保護器１
５は作動しないが、温度スイッチ１７が圧縮機２のモー
タコイル部近傍に設けてあるため、その温度上昇を確実
に検知して圧縮機２の電源回路を開き、圧縮機２の運転
を停止して圧縮機２の焼損を防止する。In the above structure, the operation thereof will be described below. When the compressor 2 is operated at the start of the heating operation and the refrigerant in the outdoor heat exchanger 4, the accumulator 10 and the like is recovered to the heating cycle side, the outdoor heat is removed. For some reason, such as when there is no refrigerant in the exchanger 4, the compressor 2 may be idly operated without load. In this case, since the current value flowing through the compressor 2 is small and the rate of temperature rise is also small, the temperature rise protector 1
5 does not operate, but since the temperature switch 17 is provided in the vicinity of the motor coil portion of the compressor 2, the temperature rise is surely detected, the power supply circuit of the compressor 2 is opened, and the operation of the compressor 2 is stopped. To prevent the compressor 2 from burning.
【００１４】また上記温度スイッチ１７は、圧縮機２の
発停時や運転中の振動に対しても、支持金具１８に設け
た位置決め爪１９により上下方向及び左右方向に位置決
めされているから、ずれたりすることはなく、長時間に
わたって確実な温度検知が可能となる。しかもこの位置
決め爪１９は圧縮機２に近接配置されているアキュムレ
ータ１０の固定具１０ａに取付けてあるから別途取付金
具を必要としないとともに、支持金具１８は温度検知セ
ンサー１４の取付具ともなっているので構成の簡素化が
図れる。Further, since the temperature switch 17 is positioned in the vertical and horizontal directions by the positioning claws 19 provided on the support fitting 18 even when the compressor 2 starts and stops or is vibrated during operation, the temperature switch 17 is displaced. The temperature can be reliably detected over a long period of time. Moreover, since the positioning claw 19 is attached to the fixture 10a of the accumulator 10 arranged in the vicinity of the compressor 2, a separate attachment fitting is not required, and the support attachment 18 also serves as an attachment for the temperature detection sensor 14. The configuration can be simplified.
【００１５】[0015]
【発明の効果】以上説明したように本発明の暖冷房機
は、圧縮機の負荷が無く空運転をしても、圧縮機のモー
タコイル部の温度異常上昇を検知して圧縮機の運転を停
止し圧縮機の焼損を防止することができ、安全性を大巾
に向上させることができる。As described above, the heating / cooling machine of the present invention operates the compressor by detecting an abnormal temperature rise in the motor coil portion of the compressor even when the compressor is not loaded and is in idle operation. The compressor can be stopped and the compressor can be prevented from burning, and the safety can be greatly improved.
【図１】本発明の一実施例における暖冷房機のシステム
構成図FIG. 1 is a system configuration diagram of a heating / cooling machine according to an embodiment of the present invention.
【図２】本発明の一実施例における暖冷房機の圧縮機部
を示す斜視図FIG. 2 is a perspective view showing a compressor section of a heating / cooling machine according to an embodiment of the present invention.
【図３】従来の暖冷房機のシステム構成図FIG. 3 is a system configuration diagram of a conventional heating and cooling machine.
１ 圧縮機加熱ヒータ ２ 圧縮機 ４ 室外熱交換器 ６ 絞り装置 ７ 室内熱交換器 １４ 温度検知センサー １７ 温度スイッチ １８ 支持金具 1 Compressor Heating Heater 2 Compressor 4 Outdoor Heat Exchanger 6 Throttling Device 7 Indoor Heat Exchanger 14 Temperature Detection Sensor 17 Temperature Switch 18 Supporting Metal
Claims (1)
絞り装置などにより冷媒回路を構成し、前記圧縮機内の
圧縮機油を加熱する圧縮機加熱ヒータと、前記圧縮機の
温度を検知して圧縮機加熱ヒータの通電を制御する温度
検知センサーと、同圧縮機の温度を検知して圧縮機の運
転を停止させる温度スイッチと、前記温度スイッチを圧
縮機に取付けるための支持金具とからなり、前記温度ス
イッチは圧縮機のモータコイル部近傍に取付けた暖冷房
機。1. A compressor, an indoor heat exchanger, an outdoor heat exchanger,
A refrigerant circuit is constituted by a throttle device and the like, and a compressor heating heater that heats the compressor oil in the compressor, a temperature detection sensor that detects the temperature of the compressor and controls energization of the compressor heating heater, and the same compression It comprises a temperature switch for detecting the temperature of the machine and stopping the operation of the compressor, and a support metal fitting for mounting the temperature switch on the compressor. The temperature switch is a heating / cooling unit mounted near the motor coil section of the compressor. Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241040A JPH0579710A (en) | 1991-09-20 | 1991-09-20 | Space heating and room cooling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241040A JPH0579710A (en) | 1991-09-20 | 1991-09-20 | Space heating and room cooling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0579710A true JPH0579710A (en) | 1993-03-30 |
Family
ID=17068423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3241040A Pending JPH0579710A (en) | 1991-09-20 | 1991-09-20 | Space heating and room cooling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0579710A (en) |
-
1991
- 1991-09-20 JP JP3241040A patent/JPH0579710A/en active Pending
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