JPH09145125A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH09145125A JPH09145125A JP7329904A JP32990495A JPH09145125A JP H09145125 A JPH09145125 A JP H09145125A JP 7329904 A JP7329904 A JP 7329904A JP 32990495 A JP32990495 A JP 32990495A JP H09145125 A JPH09145125 A JP H09145125A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- temperature
- temperature difference
- detecting means
- indoor
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は空気調和装置におい
て、圧縮機の破損を防止する技術に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for preventing damage to a compressor in an air conditioner.
【０００２】[0002]
【従来の技術】従来の空気調和装置では、供給電源が瞬
間停電を起こした際に圧縮機が逆転を起こす場合があ
り、圧縮機は逆転した状態で運転を続けることがあっ
た。2. Description of the Related Art In a conventional air conditioner, the compressor may reverse when the power supply is momentarily interrupted, and the compressor may continue to operate in the reverse state.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上記の従
来の空気調和装置では、圧縮機が逆転した状態で運転を
続けた場合、圧縮機のコイル温度が異常に上昇し、破損
するという問題点があった。However, the conventional air conditioner described above has a problem that the coil temperature of the compressor rises abnormally and is damaged when the compressor is continuously operated in the reverse direction. It was
【０００４】本発明は上記従来例の問題を解決すること
を課題とするものである。An object of the present invention is to solve the above problems of the conventional example.
【０００５】[0005]
【課題を解決するための手段】上記の問題点を解決する
ために本発明は、圧縮機が逆転を起こした場合、その状
態を検知し、圧縮機を停止する制御手段を設けたもので
ある。そして圧縮機の逆転継続を停止することができ
る。In order to solve the above-mentioned problems, the present invention is provided with a control means for detecting the state of the reverse rotation of the compressor and stopping the compressor. . Then, the reverse rotation of the compressor can be stopped.
【０００６】[0006]
【発明の実施の形態】本発明は、圧縮機が逆転を起こし
た場合、その状態を検知して圧縮機を停止するものであ
り、これにより圧縮機の逆転による破損を防止するもの
である。BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, when a reverse rotation of a compressor occurs, the state is detected and the compressor is stopped, thereby preventing damage due to reverse rotation of the compressor.
【０００７】そして、圧縮機の逆転を検知する手段は、
室内温度検出手段による温度と、室内配管温度検出手段
による温度との温度差によって逆転状態を検知すること
ができる。The means for detecting the reverse rotation of the compressor is
The reverse rotation state can be detected by the temperature difference between the temperature detected by the indoor temperature detecting means and the temperature detected by the indoor pipe temperature detecting means.
【０００８】従って、従来の空気調和装置に使用されて
いる部品のみで検知が可能であり、逆転の状態を迅速に
検知することができて、その逆転を停止することができ
る。Therefore, it is possible to detect only the components used in the conventional air conditioner, the state of reverse rotation can be detected quickly, and the reverse rotation can be stopped.
【０００９】また、空気調和装置の運転開始より、ある
一定時間は室内温度と室内配管温度の温度差が設定値を
下回るが、その間は圧縮機を停止させないことにするこ
とにより、制御の誤動作を防止する。Further, since the temperature difference between the indoor temperature and the indoor piping temperature falls below the set value for a certain period of time after the start of the operation of the air conditioner, the malfunction of the control is prevented by not stopping the compressor during that time. To prevent.
【００１０】また、空気調和装置の運転条件の変化時に
室内温度と室内配管温度の温度差が一時的に設定値を下
回るが、温度差が設定値を下回る状態が一定時間継続し
た場合、圧縮機を停止することとすることにより、制御
が誤動作することを防止する。Further, when the temperature difference between the indoor temperature and the indoor pipe temperature temporarily falls below the set value when the operating conditions of the air conditioner change, but when the state where the temperature difference remains below the set value continues for a certain period of time, the compressor Stopping prevents the control from malfunctioning.
【００１１】以上の本発明の作用により本発明の実施が
可能であるが、以下に具体的な実施例について説明す
る。The present invention can be carried out by the above-described operation of the present invention, and concrete examples will be described below.
【００１２】[0012]
【実施例】以下、本発明による空気調和装置の一実施例
を図面と共に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air conditioner according to the present invention will be described below with reference to the drawings.
【００１３】図５は空気調和装置の冷凍サイクルで、圧
縮機２０１から吐出された冷媒は四方弁２０２，凝縮器
２０３，キャピラリーチューブ２０４，蒸発機２０５と
流れ圧縮機２０１に吸入される。２０６は室内温度検出
手段、２０７は室内配管温度検出手段で構成される。FIG. 5 shows a refrigeration cycle of the air conditioner, in which the refrigerant discharged from the compressor 201 is drawn into the four-way valve 202, the condenser 203, the capillary tube 204, the evaporator 205 and the flow compressor 201. Reference numeral 206 is an indoor temperature detecting means, and 207 is an indoor piping temperature detecting means.
【００１４】（実施例１）図１において、制御系に取り
入れられる情報は、室内温度，室内配管温度である。(Embodiment 1) In FIG. 1, the information taken into the control system is the room temperature and the room piping temperature.
【００１５】まず、運転時間判定回路１で積算運転時間
と運転時間設定値２を比較し、積算運転時間が運転時間
設定値２以上であれば、室内温度，室内配管温度の情報
を室内温度検出手段３，室内配管温度検出手段４から制
御系に取り入れ、温度差演算手段５にて室内温度検出手
段３と、室内配管温度検出手段４より得た室内温度，室
内配管温度の温度差を演算し、温度差比較手段６により
温度差設定値７と比較し、温度差設定値７以下であれ
ば、圧縮機停止手段８により圧縮機９を停止させる。First, the operating time determination circuit 1 compares the integrated operating time with the operating time set value 2, and if the integrated operating time is equal to or more than the operating time set value 2, the indoor temperature and indoor pipe temperature information are detected. The temperature difference between the indoor temperature detection means 3 and the indoor pipe temperature detection means 4 is calculated by the temperature difference calculation means 5 by calculating the temperature difference between the indoor temperature detection means 3 and the indoor pipe temperature detection means 4. The temperature difference comparing unit 6 compares the temperature difference setting value 7 with the temperature difference setting value 7. If the temperature difference setting value is 7 or less, the compressor stopping unit 8 stops the compressor 9.
【００１６】この制御の流れをフローチャートにしたも
のが図２である。ステップ１０１で運転時間Ｔを検知
し、そしてステップ１０２で運転時間Ｔと運転時間設定
値Ｔｓの関係がＴ≧Ｔｓに成り立てば、ステップ１０３
で室内温度ｔ１を読み込み、ステップ１０４で室内配管
温度ｔ２を読み込む。そしてステップ１０５でｔ１，ｔ
２の温度差ｔを演算し、ステップ１０６で温度差ｔと温
度差設定値ｔｓとの関係がｔ≦ｔｓに成り立てば、ステ
ップ１０７で圧縮機を停止させる。FIG. 2 is a flowchart showing the flow of this control. If the operating time T is detected in step 101, and if the relationship between the operating time T and the operating time set value Ts is T ≧ Ts in step 102, step 103
The room temperature t1 is read in and the room piping temperature t2 is read in step 104. Then, in step 105, t1, t
The temperature difference t of 2 is calculated, and if the relationship between the temperature difference t and the temperature difference setting value ts is t ≦ ts in step 106, the compressor is stopped in step 107.
【００１７】（実施例２）図３において、制御系に取り
入れられる情報は、室内温度，室内配管温度である。(Embodiment 2) In FIG. 3, the information taken into the control system is the room temperature and the room piping temperature.
【００１８】まず、運転時間判定回路１１で積算運転時
間と運転時間設定値１２を比較し、積算運転時間が運転
時間設定値１２以上であれば、室内温度，室内配管温度
の情報を室内温度検出手段１３，室内配管温度検出手段
１４から制御系に取り入れ、温度差演算手段１５にて室
内温度検出手段１３と、室内配管温度検出手段１４より
得た室内温度，室内配管温度の温度差を演算し、温度差
比較手段１６により温度差設定値１７と比較し、温度差
設定値１７以下であれば、時間カウンタ１８により、上
記の温度差が温度差設定値１７以下である状態の経過時
間を検知し、経過時間比較手段１９により、その経過時
間と経過時間設定値２０を比較し、経過時間が経過時間
設定値２０以上経過すれば、圧縮機停止手段２１により
圧縮機２２を停止させる。First, the operating time determination circuit 11 compares the integrated operating time with the operating time set value 12, and if the integrated operating time is greater than or equal to the operating time set value 12, the indoor temperature and indoor pipe temperature information are detected. The temperature difference between the indoor temperature detecting means 13 and the indoor pipe temperature detecting means 14 is calculated by the temperature difference calculating means 15 from the means 13 and the indoor pipe temperature detecting means 14 into the control system. The temperature difference comparison means 16 compares with the temperature difference set value 17, and if the temperature difference set value is 17 or less, the time counter 18 detects the elapsed time in the state where the temperature difference is the temperature difference set value 17 or less. Then, the elapsed time comparing means 19 compares the elapsed time with the elapsed time set value 20, and if the elapsed time exceeds the elapsed time set value 20 or more, the compressor stopping means 21 stops the compressor 22. To.
【００１９】この制御の流れをフローチャートにしたも
のが図４である。ステップ１１１で運転時間Ｔを検知
し、そして運転時間Ｔと運転時間設定値Ｔｓの関係がス
テップ１１２でＴ≧Ｔｓに成り立てば、ステップ１１３
で室内温度ｔ１を読み込み、ステップ１１４で室内配管
温度ｔ２を読み込む。そしてステップ１１５でｔ１，ｔ
２の温度差ｔを演算し、温度差ｔと温度差設定値ｔｓと
の関係がステップ１１６でｔ≧ｔｓに成り立てば、時間
カウンタ１８にて上記ｔ≧ｔｓ状態の経過時間Ｔａをス
テップ１１７で検知し、そのＴａと温度差時間設定値Ｔ
ｃの関係がステップ１１８でＴａ≧Ｔｃに成り立てば、
ステップ１１９で圧縮機を停止させる。FIG. 4 is a flowchart showing the flow of this control. If the operating time T is detected in step 111 and if the relationship between the operating time T and the operating time set value Ts is T ≧ Ts in step 112, then step 113
At step 114, the room temperature t1 is read, and at step 114, the room piping temperature t2 is read. Then, in step 115, t1, t
If the relationship between the temperature difference t and the temperature difference setting value ts is t ≧ ts in step 116, the time counter 18 calculates the elapsed time Ta in the t ≧ ts state in step 117. Detected Ta and temperature difference time set value T
If the relationship of c is Ta ≧ Tc in step 118,
In step 119, the compressor is stopped.
【００２０】[0020]
【発明の効果】本発明は、圧縮機の逆転状態を検知し、
圧縮機を停止することにより、圧縮機のコイルの異常な
温度上昇を防止し圧縮機の破壊を防止することができ
る。The present invention detects the reverse rotation state of the compressor,
By stopping the compressor, it is possible to prevent an abnormal temperature rise in the coil of the compressor and prevent the compressor from being destroyed.
【００２１】また、圧縮機が逆転を起こした場合、室内
温度と室内配管温度の温度差によってその状態を検知す
ることにより、従来の空気調和装置に使用されている部
品のみで検知可能であり、新たにコストをかけることな
くこの制御が可能であり、また逆転の状態を迅速に検知
することが可能である。When the compressor reversely rotates, the condition can be detected by the temperature difference between the indoor temperature and the indoor pipe temperature, and can be detected only by the components used in the conventional air conditioner. This control can be performed without additional cost, and the state of reverse rotation can be detected quickly.
【００２２】また、空気調和装置の運転開始よりある一
定時間は、室内温度と室内配管温度の温度差が設定値を
下回るが、その間は圧縮機を停止させないことにより制
御が誤動作することが防止可能である。Further, the temperature difference between the indoor temperature and the indoor pipe temperature is lower than the set value for a certain time after the start of the operation of the air conditioner, but during that time, it is possible to prevent malfunction of the control by not stopping the compressor. Is.
【００２３】また、空気調和装置の運転条件の変化時に
室内温度と室内配管温度の温度差が一時的に設定値を下
回るが、温度差が設定値を下回る状態が一定時間継続し
た場合、圧縮機を停止させることにより制御が誤動作す
ることが防止可能で、逆転による圧縮機の破壊を防止す
ることができる。When the operating condition of the air conditioner changes, the temperature difference between the indoor temperature and the indoor pipe temperature temporarily falls below the set value, but if the temperature difference remains below the set value for a certain period of time, the compressor It is possible to prevent the control from malfunctioning by stopping, and it is possible to prevent the destruction of the compressor due to the reverse rotation.
【図１】本発明の実施例１における圧縮機の逆転防止制
御のブロック図FIG. 1 is a block diagram of reverse rotation prevention control of a compressor according to a first embodiment of the present invention.
【図２】同圧縮機の逆転防止制御のフローチャートFIG. 2 is a flowchart of reverse rotation prevention control of the compressor.
【図３】本発明の実施例２における圧縮機の逆転防止制
御のブロック図FIG. 3 is a block diagram of reverse rotation prevention control of a compressor according to a second embodiment of the present invention.
【図４】同圧縮機の逆転防止制御のフローチャートFIG. 4 is a flowchart of reverse rotation prevention control of the compressor.
【図５】本発明における空気調和装置の冷凍サイクル説
明図FIG. 5 is an explanatory diagram of a refrigeration cycle of the air conditioner according to the present invention.
１，１１ 運転時間判定回路 ２，１２ 運転時間設定値 ３，１３ 室内温度検出手段 ４，１４ 室内配管温度検出手段 ５，１５ 温度差演算手段 ６，１６ 温度差比較手段 ７，１７ 温度差設定値 ８，２１ 圧縮機停止手段 ９，２２ 圧縮機 １８ 時間カウンタ １９ 経過時間比較手段 ２０ 経過時間設定値 1,11 Operating time judgment circuit 2,12 Operating time set value 3,13 Indoor temperature detecting means 4,14 Indoor pipe temperature detecting means 5,15 Temperature difference calculating means 6,16 Temperature difference comparing means 7,17 Temperature difference setting value 8,21 Compressor stop means 9,22 Compressor 18 hour counter 19 Elapsed time comparison means 20 Elapsed time set value
Claims (4)
縮機が逆転している状態を検知手段により検知して、制
御手段により圧縮機を停止するように制御する空気調和
装置。1. An air conditioner capable of heating and cooling, wherein the detecting means detects a state in which the compressor is rotating in the reverse direction, and the control means controls the compressor to stop.
配管温度検出手段と、その検出手段より得られた温度差
を演算する演算手段とを有する手段とした請求項１記載
の空気調和装置。2. The air conditioner according to claim 1, wherein the detecting means includes an indoor temperature detecting means, an indoor pipe temperature detecting means, and a calculating means for calculating a temperature difference obtained by the detecting means. .
た時間内は、圧縮機を停止させないように制御する請求
項１記載の空気調和装置。3. The air conditioner according to claim 1, wherein the operating time determination circuit controls the compressor not to stop within a predetermined time.
管温度検出手段と、その検出手段より得られた温度差を
演算する演算手段と、前記演算手段と時間カウンタによ
り得られる温度差の経過時間を検知手段とした請求項１
記載の空気調和装置。4. The detecting means is an indoor temperature detecting means, an indoor pipe temperature detecting means, a calculating means for calculating a temperature difference obtained by the detecting means, and a temperature difference obtained by the calculating means and a time counter. Claim 1 which used time as a detection means
The air conditioner according to any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32990495A JP3613862B2 (en) | 1995-11-24 | 1995-11-24 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32990495A JP3613862B2 (en) | 1995-11-24 | 1995-11-24 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09145125A true JPH09145125A (en) | 1997-06-06 |
| JP3613862B2 JP3613862B2 (en) | 2005-01-26 |
Family
ID=18226566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32990495A Expired - Fee Related JP3613862B2 (en) | 1995-11-24 | 1995-11-24 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3613862B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100540423B1 (en) * | 1999-10-16 | 2006-01-10 | 주식회사 엘지이아이 | Inverter air conditioner compressor frequency control method |
| JP2007212023A (en) * | 2006-02-08 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Air conditioning system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671622A (en) * | 1979-11-16 | 1981-06-15 | Sanden Corp | Controller for car cooler |
| JPS61124851U (en) * | 1985-01-23 | 1986-08-06 | ||
| JPS62245042A (en) * | 1986-04-18 | 1987-10-26 | Mitsubishi Electric Corp | Protection device for air conditioner |
| JPH06117738A (en) * | 1992-10-06 | 1994-04-28 | Mitsubishi Heavy Ind Ltd | Controlling device for refrigeration unit |
| JPH07218059A (en) * | 1994-02-02 | 1995-08-18 | Hitachi Ltd | Air conditioner provided with reverse rotation-preventing function |
-
1995
- 1995-11-24 JP JP32990495A patent/JP3613862B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671622A (en) * | 1979-11-16 | 1981-06-15 | Sanden Corp | Controller for car cooler |
| JPS61124851U (en) * | 1985-01-23 | 1986-08-06 | ||
| JPS62245042A (en) * | 1986-04-18 | 1987-10-26 | Mitsubishi Electric Corp | Protection device for air conditioner |
| JPH06117738A (en) * | 1992-10-06 | 1994-04-28 | Mitsubishi Heavy Ind Ltd | Controlling device for refrigeration unit |
| JPH07218059A (en) * | 1994-02-02 | 1995-08-18 | Hitachi Ltd | Air conditioner provided with reverse rotation-preventing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100540423B1 (en) * | 1999-10-16 | 2006-01-10 | 주식회사 엘지이아이 | Inverter air conditioner compressor frequency control method |
| JP2007212023A (en) * | 2006-02-08 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3613862B2 (en) | 2005-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5042264A (en) | Method for detecting and correcting reversing valve failures in heat pump systems having a variable speed compressor | |
| US20080083236A1 (en) | Method for controlling stop operation of air conditioner | |
| JP2003090582A (en) | Control method for air conditioner | |
| EP2103883B1 (en) | Heating and/or cooling installation and method for alternatively monitoring the operability of a flow switch in such an installation and of the installation | |
| JPH09243138A (en) | Method for controlling air conditioner | |
| JP3445861B2 (en) | Air conditioner | |
| JPH08261542A (en) | Air conditioner | |
| JP2007212023A (en) | Air conditioning system | |
| JP6146606B2 (en) | Air conditioner | |
| JP2002340386A (en) | Control method for air conditioner | |
| JP3613862B2 (en) | Air conditioner | |
| JPH09159293A (en) | Compressor protection controller for air conditioner | |
| JP3948190B2 (en) | Air conditioner | |
| KR20000073050A (en) | Low pressure side obstruction deciding method for air conditioner | |
| JPH1137531A (en) | Device for controlling refrigerant heating type inverter air conditioner | |
| JP3687201B2 (en) | Air conditioner | |
| JPH1019344A (en) | Air conditioner | |
| JPH10197031A (en) | Trouble detector for air conditioner | |
| JP3337264B2 (en) | Air conditioner defroster | |
| JP2002206786A (en) | Defrosting controller for air conditioner | |
| JPH04320753A (en) | Air conditioner | |
| JP2000074458A (en) | Refrigeration cycle | |
| JP2001221525A (en) | Refrigerative air conditioner | |
| JP2003294293A (en) | Air conditioner | |
| JP2503784B2 (en) | Operation control device for air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20040412 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040712 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040720 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040907 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20041012 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20041025 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071112 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081112 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091112 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091112 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101112 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111112 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121112 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131112 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |