JPS6020668B2 - Cooling system control device - Google Patents
Cooling system control deviceInfo
- Publication number
- JPS6020668B2 JPS6020668B2 JP9186076A JP9186076A JPS6020668B2 JP S6020668 B2 JPS6020668 B2 JP S6020668B2 JP 9186076 A JP9186076 A JP 9186076A JP 9186076 A JP9186076 A JP 9186076A JP S6020668 B2 JPS6020668 B2 JP S6020668B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- level
- detection circuit
- compressor
- control device
- 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.)
- Expired
Links
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【発明の詳細な説明】
この発明は、冷蔵庫等の制御装置に関するものであり、
安価で、工業的価値の高い制御装置を提供しようとする
ものである。[Detailed Description of the Invention] The present invention relates to a control device for a refrigerator, etc.
The aim is to provide a control device that is inexpensive and has high industrial value.
以下図に従って詳細に説明する。図は、この発明の一実
施例を示す電気回路のブロック図である。A detailed explanation will be given below according to the drawings. The figure is a block diagram of an electric circuit showing one embodiment of the present invention.
】は冷蔵庫内などの被制御部の温度を感知する感温素子
を有した温度検出回路で、その出力レベルは被制御部の
温度がある設定温度より高い場合には、“０”レベル、
また設定温度以下になると“１”レベルになるよう構成
されている。２は冷却器（図示せず）の冷煤圧力、ある
いは冷却器温度か負荷を検出する状態検出回路で、．そ
の出力レベルは該冷却器の袷煤圧力がある設定圧力より
高いか、あるいは冷却器温度がある設定温度より高い場
合には“１”レベルとなり、設定圧力以下、あるいは、
設定温度以下となると“０”レベルとなるようになって
いる。] is a temperature detection circuit that has a temperature sensing element that senses the temperature of a controlled part such as inside a refrigerator, and its output level is "0" level when the temperature of the controlled part is higher than a certain set temperature.
Further, it is configured to go to the "1" level when the temperature falls below the set temperature. 2 is a state detection circuit that detects the cold soot pressure of the cooler (not shown), the cooler temperature, or the load. The output level is "1" level when the soot pressure of the cooler is higher than a certain set pressure, or when the cooler temperature is higher than a certain set temperature, and when the soot pressure is lower than the set pressure, or
When the temperature falls below the set temperature, the level becomes "0".
３及び５は、単安定マルチパイプレータ回路である単安
定マルチパイプレータ回路は周知の如く、入力端子Ａに
“０”レベルの信号が入ると、出力端子Ｑは、Ｃ及びＲ
で決まる一定時間Ｔだけ“１”レベルとなるもので、そ
れぞれの出力時間Ｔ．及び公は、Ｃ，及びＲ，，Ｃ２及
びＲ２で定められ、Ｔ，くＴ２となるように設定されて
いるもので、温度検出回路１の出力は、単安定マルチパ
イプレータ回路３の入力端子Ａ及び、リレー駆動回路７
の入力端子に接続されている。3 and 5 are monostable multipipelator circuits.As is well known in the monostable multipipelator circuit, when a "0" level signal is input to input terminal A, output terminal Q becomes C and R.
It remains at the "1" level for a certain period of time T determined by the output time T. and public are defined by C, and R, , C2 and R2, and are set to be T, T2, and the output of the temperature detection circuit 1 is the input terminal of the monostable multipipelator circuit 3. A and relay drive circuit 7
is connected to the input terminal of
４はＮＡＮＤゲート、６はＮＯＲゲートである。4 is a NAND gate, and 6 is a NOR gate.
・ＮＡＮＤゲート４及び、ＮＯＲゲート６のおのおの二
つの入力端子のうち、片方はそれぞれ、単安定マルチパ
イプレータ回路３の出力端子Ｑに接続されており、ＮＡ
ＮＤゲート４の残り入力端子は、状態検出回路２の出力
端子と接続され、該ＮＡＮＤゲート４の出力端子は単安
定マルチパイプレータ回路５の入力端子Ａに接続されて
いる。また、ＮＯＲゲート６の残りの入力端子は単安定
マルチパイプレータ回路５の出力端子Ｑと接続されてい
る。該ＮＯＲゲート６の出力端子は、リレー駆動回路８
の入力端子に接続してある。９は冷却用圧縮機１１の電
源で、その一端は、接点１０を介して該圧縮機１１の端
子１に後競され、主巻線Ｍを介して電源９の他機に接続
されるととげと「補助巻線Ｆ、起動コンデンサ１２、接
点軍３を介して同じく電源９の他端に接続されている。・One of the two input terminals of each of the NAND gate 4 and the NOR gate 6 is connected to the output terminal Q of the monostable multipipulator circuit 3, and the NA
The remaining input terminal of the ND gate 4 is connected to the output terminal of the state detection circuit 2, and the output terminal of the NAND gate 4 is connected to the input terminal A of the monostable multipipulator circuit 5. Further, the remaining input terminals of the NOR gate 6 are connected to the output terminal Q of the monostable multipipulator circuit 5. The output terminal of the NOR gate 6 is connected to the relay drive circuit 8.
is connected to the input terminal of Reference numeral 9 denotes a power source for the cooling compressor 11, one end of which is connected to the terminal 1 of the compressor 11 through a contact 10, and connected to another device of the power source 9 through a main winding M. It is also connected to the other end of the power supply 9 via the auxiliary winding F, the starting capacitor 12, and the contact group 3.
リレー駆動回路７，８は、それぞれ入力端子のレベルが
仏０”レベルの時、おのおのの接点翼０及び亀３を閉じ
“１”レベルの時接点を開くようにしてあるものである
。次にこの回路の動作を説明する。Relay drive circuits 7 and 8 are designed to close their respective contact wings 0 and tortoise 3 when the level of the input terminal is at the "0" level, and to open the contact when the level is at "1".Next, The operation of this circuit will be explained.
状態検出回路２の出力レベルが“０’１レベルの時（す
なわち、冷却器の冷煤圧力がある設定圧力（たとえばｌ
ｋ９／ｃ流）より低い場合、あるいは「冷却器の温度が
ある設定温度より低い場合）には被制御部の温度がある
設定温度（たとえば５０Ｃ）より高くなった瞬間、温度
検出回路１の出力信号は「“０”レベルとなり、リレー
駆動回路７により接点亀川ま閉じられると同時に、単安
定マルチパイプレータ回路３の出力はＴ，時間（たとえ
ば２秒）だけ“１”レベルとなることにより、ＮＯＲゲ
ート６の出力レベルは“０”レベルとなり、リレー駆動
回路８を介して時間Ｔ，だけ接点１３を閉じる。When the output level of the status detection circuit 2 is "0'1 level" (that is, when the cold soot pressure of the cooler is set to a certain pressure (for example, l
k9/c flow) or when the temperature of the cooler is lower than a certain set temperature, the moment the temperature of the controlled part becomes higher than a certain set temperature (for example, 50C), the output of temperature detection circuit 1 The signal goes to the "0" level, and the contact Kamegawa is closed by the relay drive circuit 7, and at the same time, the output of the monostable multipiped circuit 3 goes to the "1" level for a time T (for example, 2 seconds). The output level of the NOR gate 6 becomes the "0" level, and the contact 13 is closed for a time T via the relay drive circuit 8.
これにより冷却用圧縮機亀１は、起動されＴ，時間後に
通常の冷却運転に入り、その冷却作用により被制御部の
温度は低下していく。被制御部の温度が低下してある設
定温度に達すると、温度検出回路１の出力信号が“１”
レベルとなりこのためリレー駆動回路７は接点１０を開
き冷却運転を停止する。また、状態検出回路２の出力レ
ベルが“１”レベルの時（すなわち、冷却器の冷媒圧力
がある設定圧力より高い場合、あるいは冷却器の温度が
ある設定温度より高い場合）には被制御部の温度が、あ
る設定温度より高くなった瞬間、温度検出回路１の出力
信号は「“０”レベルとなり前述と同様リレー駆動回路
７により接点１０は閉じられると同時に、単安定マルチ
パイプレータ回路３の出力信号はＴ，時間だけ“１”レ
ベルとなるが、この時点で状態検出回路２の出力信号が
“１”レベルであるため、ＮＡＮＤゲート４の出力信号
が“０”レベルとなり単安定マルチパイプレータ回路５
をトリガし単安定マルチ／ゞィプレータ回路５の出力レ
ベルが時間Ｔ２（たとえば６０秒）だけ“１”レベルと
なることにより、ＮＯＲゲート６の出力レベルはＴ２時
間だけ“０”レベルとなり〜リレー駆動回路８を介して
接点１３をＴ２時間だけ閉じる。As a result, the cooling compressor turtle 1 is started and enters normal cooling operation after a time T, and the temperature of the controlled portion decreases due to its cooling action. When the temperature of the controlled part decreases and reaches a certain set temperature, the output signal of the temperature detection circuit 1 becomes "1".
level, so the relay drive circuit 7 opens the contact 10 and stops the cooling operation. Furthermore, when the output level of the status detection circuit 2 is "1" level (that is, when the refrigerant pressure in the cooler is higher than a certain set pressure, or when the temperature of the cooler is higher than a certain set temperature), the controlled part At the moment when the temperature of The output signal of the NAND gate 4 is at the "1" level for a time T, but since the output signal of the state detection circuit 2 is at the "1" level at this point, the output signal of the NAND gate 4 is at the "0" level and the monostable multi Pipelator circuit 5
is triggered and the output level of the monostable multi/suppressor circuit 5 becomes "1" level for a time T2 (for example, 60 seconds), and the output level of the NOR gate 6 becomes "0" level for a time T2 ~ Relay drive Contact 13 is closed via circuit 8 for time T2.
これより冷却用圧縮機１１は起動され、Ｔ２時間後に通
常の冷却運転に入りその冷却作用により被制御部の温度
は低下していく。被制御部の温度が低下してある設定温
度に達すると、温度検出回路量の出力信号が“１”レベ
ルになりこのためリレー駆動回路７は接点を開き冷却運
転を停止する。冷却装置が運転を停止することにより、
被制御部の温度は徐々に上昇し温度検出回路１の出力信
号が“０”レベルに復帰し「上記の二種類の動作のどち
らかにより冷却運転を再開することにより被制御部の温
度は再び低下し、上記の断続運転をくり返す。かかる構
成の制御装置では、冷却装置の運転を再開する時点の圧
縮機の吸込側圧力が低い、すなわち、圧縮機の負荷が４
・ごし、場合（前述したように冷却装置の所定部位例え
ば冷却器の冷煤圧力あるいは温度が低い場合には）Ｔ，
時間の短い起動時間で圧縮機を起動させ、また、圧縮機
の吸込側圧力が高く圧縮機の負荷の大きい場合（高温日
も起動や霜取後の再起動のように冷却装置の所定部位例
えば冷却器の冷煤圧力あるいは温度が高い場合）には圧
縮機の二相運転時間を「吸込側圧力が低くなり圧縮機の
負荷が小さくなるまでのＬ時間とすることにより、その
起動を補償するものである。From this, the cooling compressor 11 is started, and after T2 hours, it enters a normal cooling operation and the temperature of the controlled section decreases due to its cooling action. When the temperature of the controlled part decreases and reaches a certain set temperature, the output signal of the temperature detection circuit goes to the "1" level, so the relay drive circuit 7 opens the contact and stops the cooling operation. When the cooling system stops operating,
The temperature of the controlled part gradually rises, and the output signal of the temperature detection circuit 1 returns to the "0" level. In a control device with such a configuration, the suction side pressure of the compressor is low at the time when the operation of the cooling device is restarted, that is, the load on the compressor is 4.
・If the cold soot pressure or temperature is low at a predetermined part of the cooling device, for example, the cooler, as mentioned above, T,
When starting the compressor in a short startup time, and when the pressure on the suction side of the compressor is high and the load on the compressor is large (such as when starting on a high temperature day or restarting after defrosting), (When the cold soot pressure or temperature of the cooler is high), the two-phase operation time of the compressor is set to ``L time until the suction side pressure becomes low and the load on the compressor becomes small to compensate for its startup. It is something.
以上の如く、この発明は冷却装置用圧縮機の重負荷時の
起動を補償することが可能なため、必要にして「最小の
圧縮機用電動機が設計でき安価で、低入力の冷蔵庫を提
供できるという優れた等性を有するもので、その工業的
効果は非常に大である。As described above, the present invention is capable of compensating for the start-up of a compressor for a cooling system under heavy load, and therefore, it is possible to design the smallest possible compressor motor and provide an inexpensive, low-input refrigerator. It has excellent homogeneity, and its industrial effects are very large.
図は、本発明になる冷蔵庫の制御装置を電子回路で構成
したもののブロック図である。
図中、１は温度検出回路、２は状態検出回路、１ １は
圧縮機である。The figure is a block diagram of a refrigerator control device according to the present invention configured with an electronic circuit. In the figure, 1 is a temperature detection circuit, 2 is a state detection circuit, and 11 is a compressor.
Claims (1)
止することにより被制御部の温度を一定に保つ冷却装置
の制御装置において、被制御部の温度を検出する温度検
出回路と、冷却装置の所定部位における冷媒圧力おるい
は温度から負荷の大小を検出する状態検出回路を有し、
かつ上記温度検出回路からの信号により上記圧縮機の主
巻線および補助巻線に通電して運転を開始するとともに
この起動又は再起動時に上記状態検出回路からの出力信
号の有無により上記圧縮機の補助巻線に通電する時間を
変える装置を設けたことを特徴とする冷却装置の制御装
置。1. In a control device for a cooling device that keeps the temperature of a controlled part constant by operating and stopping a compressor having a main winding and an auxiliary winding, a temperature detection circuit that detects the temperature of the controlled part and a cooling device are used. It has a state detection circuit that detects the magnitude of the load from the refrigerant pressure or temperature at a predetermined location,
In addition, the main winding and auxiliary winding of the compressor are energized to start operation according to the signal from the temperature detection circuit, and at the time of startup or restart, the compressor is activated depending on the presence or absence of an output signal from the state detection circuit. A control device for a cooling device, characterized in that a device is provided for changing the time during which electricity is applied to an auxiliary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9186076A JPS6020668B2 (en) | 1976-07-30 | 1976-07-30 | Cooling system control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9186076A JPS6020668B2 (en) | 1976-07-30 | 1976-07-30 | Cooling system control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5316946A JPS5316946A (en) | 1978-02-16 |
| JPS6020668B2 true JPS6020668B2 (en) | 1985-05-23 |
Family
ID=14038298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9186076A Expired JPS6020668B2 (en) | 1976-07-30 | 1976-07-30 | Cooling system control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020668B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58217172A (en) * | 1982-06-09 | 1983-12-17 | 三洋電機株式会社 | Control circuit for cooling device |
-
1976
- 1976-07-30 JP JP9186076A patent/JPS6020668B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5316946A (en) | 1978-02-16 |
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