JP3935627B2 - Refrigerator operation control device - Google Patents

Refrigerator operation control device Download PDF

Info

Publication number
JP3935627B2
JP3935627B2 JP27586498A JP27586498A JP3935627B2 JP 3935627 B2 JP3935627 B2 JP 3935627B2 JP 27586498 A JP27586498 A JP 27586498A JP 27586498 A JP27586498 A JP 27586498A JP 3935627 B2 JP3935627 B2 JP 3935627B2
Authority
JP
Japan
Prior art keywords
compressor
control relay
transformer
contact
switched
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 - Fee Related
Application number
JP27586498A
Other languages
Japanese (ja)
Other versions
JP2000104664A (en
Inventor
英樹 大湯
俊通 平田
説男 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP27586498A priority Critical patent/JP3935627B2/en
Publication of JP2000104664A publication Critical patent/JP2000104664A/en
Application granted granted Critical
Publication of JP3935627B2 publication Critical patent/JP3935627B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、冷蔵庫の圧縮機を運転させるための運転回路に関する。
【０００２】
【従来の技術】
冷蔵庫の圧縮機は、冷蔵庫内の冷却負荷が高い時にも、十分な冷却能力を備えていることが要求される。すなわち、電源投入直後のプルダウン運転時や、霜取り後（このとき庫内温度が上昇する）の冷却運転再開のとき、また庫内が貯蔵物で一杯に満たされている状態、さらに、急に温度の高い品物が入れられたり、あるいは扉開閉に伴い多量の外気が侵入し庫内温度が上昇するというような冷却負荷が最大となる時を想定して、それに十分見合うような冷却能力を持つ圧縮機が設定されている。
【０００３】
【発明が解決しようとする課題】
従って、上記のような高負荷時以外の安定的な通常運転時には、圧縮機は余裕がある状態で運転されているので、結果として余分な電力を消費している。
【０００４】
図２は、その従来の圧縮機運転回路を示し、リレーＲＹ等の制御器２０を用いて電源電圧（ＡＣ１００Ｖ）をそのままＯＮ／ＯＦＦさせて、能力に余裕のある圧縮機２２を運転しているものであるが、この回路では冷蔵庫の負荷変動に合わせた圧縮機２２の運転はできない。
【０００５】
また、負荷変動に合わせて圧縮機２３の能力を変化させる例として、図３に示す如く、変圧器２４を用いて、能力を必要とするときには、高い供給電圧（変圧器で昇圧）を加え、通常時は低い電圧（電源電圧）を与えるような切換を、リレーＲＹを用いた制御器２５で行う回路が提案されている。
【０００６】
しかし、この図３の回路では、変圧器２４への電源供給のための接続ライン２６で常に通電されているために、この変圧器２４での損失が常に生じるという問題があった。
【０００７】
本発明は、上記の問題を解決するもので、変圧器を用いて負荷変動に対応した圧縮機の運転が行えると共に、変圧器を高負荷時に限って通電し、通常は通電しないような運転回路に構成することにより、電力の節減を図れるようにした冷蔵庫の運転制御装置を提供するものである。
【０００８】
【課題を解決するための手段】
上記問題を解決するために、本発明は、冷蔵庫を冷却駆動する圧縮機(1)と、商用電源に接続される電源プラグ (2) と、前記電源プラグ (2) につながる共通端子 (8) とこの端子 (8) につながる切換切片 (9) が切り換わる２個の接点 (10,11) を備えた第１の制御リレー (6) と、前記圧縮機 (1) につながる共通端子 (12) とこの端子 (12) につながる切換切片 (13) が切り換わる２個の接点 (14,15) を備えた第２の制御リレー (7) と、前記第１の制御リレー (6) の一方の接点 (10) と前記第２の制御リレー (7) の一方の接点 (14) とを接続する配線 (16) と、前記第１の制御リレー (6) の他方の接点 (11) に一次側が接続され前記第２の制御リレー (7) の他方の接点 (15) に二次側が接続されて電圧を昇圧する変圧器 (3)とを備えることを特徴とするものである。
【０００９】
また、高負荷運転時は、前記第１の制御リレー(6)を前記他方の接点 (11)側に切り換え且つ第２の制御リレー(7)を前記他方の接点 (15)側に切り換えることを特徴とするものである。
【００１０】
また、通常運転時は、前記第１の制御リレー(6)を前記一方の接点 (10)側に切り換え且つ第２の制御リレー (7) を前記一方の接点 (14) 側に切り換えることを特徴とするものである。
【００１１】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づき説明する。
【００１２】
図１は本発明に係る圧縮機の運転回路であって、１は圧縮機、２は商用電源１００Ｖに接続される電源プラグであり、３は圧縮機１を負荷変動に合わせた能力で運転できるような電圧を与えるための変圧器であり、圧縮機１が能力を必要とするときは、昇圧された電圧が供給されるようになっている。
【００１３】
そして、圧縮機１が電源と接続される一方の電源供給ライン５Ａには、第１の制御リレー（ＲＹ１）６と第２の制御リレー（ＲＹ２）７が直列に介挿接続されている。
【００１４】
すなわち、第１の制御リレー６は、電源側共通端子（ＣＯＭ）８とこの端子８につながる切換切片９が切り換わる２個の接点、すなわち圧縮機側接点１０と変圧器側接点１１とを備えたものである。
【００１５】
また第２の制御リレー７は、圧縮機側共通端子１２（ＣＯＭ）とこの端子１２につながる切換切片１３が切り換わる２個の接点、すなわち電源側接点１４と変圧器側接点１５とを備えた構成のものである。そして、第１の制御リレー６の前記圧縮機側接点１０と、第２の制御リレー７の前記電源側接点１４とが配線１６にて接続されている。なお、５Ｂは他方の電源供給ラインである。
【００１６】
また、第１の制御リレー６は、変圧器３を電源と接続するための変圧器側接点１１を有し、当該制御リレー６が動作し、その切換切片９が同図の破線状態に示すように切り換わると、変圧器３は電源と接続されて通電する。
【００１７】
ここで、第１の制御リレー６は、同図の実線状態に示すように、通常、その切換切片９を圧縮機側接点１０に切り換えているため、前記変圧器側接点１１は、開（オープン；Ｎ．Ｏ）状態にある。このオープン側の接点１１に、前記変圧器３の１次側（１次側基線）３ａが接続されている。
【００１８】
一方、第２の制御リレー７は、変圧器３と圧縮機１を接続するための変圧器側接点１５を有し、その変圧器側接点１５に変圧器３の２次側（２次側巻線）３ｂが接続された回路構成となっている。よって、当該制御リレー７が動作し、その切換切片１３が、同図の破線状態に示すように切り換わると、圧縮機１には変圧器３を通じて昇圧された電圧が印加されるものとなっている。
【００１９】
上記回路構成で、第１の制御リレー６と第２の制御リレー７は、次の如き動作をするものとなっている。
【００２０】
すなわち、通常は、第１の制御リレー６はその切換切片９を実線図に示すように圧縮機側接点１１に接続し、また第２の制御リレー７はその切換切片１３を実線図に示すように、電源側接点１４に接続している。したがって、この場合には、圧縮機１には、商用電源１００Ｖの電源電圧が印加されて、運転される。このケースは負荷が低く、圧縮機１にあまり大きな能力が求められることのない通常運転時に行われる。
【００２１】
そして、このとき、変圧器３はその１次側３ａがオープン状態で、電源から切り離されているため、電力損失は生じない。
【００２２】
一方、電源投入後のプルダウン運転や、霜取り後の冷却運転再開等の高負荷時には、第１の制御リレー６はその切換切片９を、破線図に示すように、変圧器側接点１１に切り換え、変圧器３の１次側に接続する。同時に、第２の制御リレー７も、その切換切片１３を、破線図に示すように変圧器側接点１５に切り換え、変圧器３の２次側に圧縮機１を接続する。これによって、変圧器３は電源電圧と接続され、その１次側３ａに電力供給を受けるため、圧縮機１には変圧器３で昇圧された２次側電圧が印加される。このため圧縮機１の運転能力がアップし、高負荷状態に対応することができる。
【００２３】
上記のような圧縮機１の運転回路によって、変圧器３は圧縮機１が能力を必要とするときにのみ通電し、通常運転時には通電されないので、通常運転時に変圧器３の損失が生じず、大きな省電力効果を得られる。この場合に、圧縮機１と変圧器３の選定に次のような点に留意することが望ましい。
【００２４】、
すなわち、通常安定時には電源電圧で最も効率が良くなるような圧縮機１を選定し、この圧縮機１で高負荷時を乗り切れるよう、変圧器３の出力電圧を決めるようにすることである。
【００２５】
また、変圧器３を使用すると、変圧器３の損失が必ず生じるため、長時間使用しない方が良い。冷蔵庫の運転を、通常運転時と高負荷時という２つの運転を切り換えて冷却する場合を考えると、通常の冷蔵庫の使用形態においては、高負荷時運転は特定条件下のみの短期間で、大半の期間が通常安定時の運転となる。そのため、通常安定時は電源電圧そのままで圧縮機１を運転させ且つ変圧器３には電力が供給されないようにすることが望ましい。そして、高負荷時のみ変圧器３にて昇圧し、急速に冷却してやって、早く通常安定運転に切り換えることが、より省電力に寄与することができる。
【００２６】
尚、本願の冷蔵庫の通常安定時の運転は、予め設定されている下限温度になれば圧縮機１が停止し、予め設定されている上限温度になれば、圧縮機１が運転を開始するようになっている。
【００２７】
また、第２の制御リレー７は、変圧器３と圧縮機１とを切換接続する役割を持つが、圧縮機１をＯＮ／ＯＦＦ制御する制御スイッチの機能をも兼ねることができる。すなわち、例えば、第１の制御リレー６の切換切片９が圧縮機側接点１０に切り換わっている通常運転時に、冷蔵庫内温度が予め設定されている下限温度に至れば、第１の制御リレー６の切換切片９を圧縮機側接点１０に切り換えたまま第２の制御リレー７のみ、切換切片１３を変圧器側接点１５に切り換えて、圧縮機１を停止する。また予め設定されている上限温度に温度上昇したら、再び通電して圧縮機１を運転させるように電源側接点１１に切り換えて、所定の庫内温度に保つことができる。
【００２８】
このように、第２の制御リレー７を圧縮機のＯＮ／ＯＦＦ制御用のリレーとしても兼用できるので、別途専用の切換スイッチを設ける必要がなく、部品点数を減らせる効果も得られる。
【００２９】
上記の動作を整理すると、下記の通りである。
（１）通常運転時で圧縮機がＯＮの場合は、第１の制御リレー６の切換切片９が圧縮機側接点１０に切り換えられ、第２の制御リレー７の切換切片１３が圧縮機側接点１４に切り換えられる。
（２）通常運転時で圧縮機がＯＦＦの場合は、第１の制御リレー６の切換切片９が圧縮機側接点１０に切り換えられ、第２の制御リレー７の切換切片１３が変圧器側接点１５に切り換えられる。
（３）高負荷運転時は、第１の制御リレー６の切換切片９が変圧器側接点１１に切り換えられ、第２の制御リレー７の切換切片１３が変圧器側接点１５に切り換えられる。
（４）第１の制御リレー６の切換切片９が変圧器側接点１１に切り換えられたまま、第２の制御リレー７の切換切片１３が圧縮機側接点１４に切り換えられると、圧縮機１は停止するが、変圧器３には電圧が供給されて損失が発生するので、このような切り換え状態は行わない。
【００３０】
尚、リレーには、制御電圧が印加された時に切換切片を一方の接点Ａに切り換え、制御電圧が印加されない時は切換切片を他方の接点Ｂ（常開接点）に切り換えるものが存在する。このようなリレーを用いた場合は、第１の制御リレー６は、大半の期間が圧縮機側接点１０に切り換えられているので、圧縮機側接点１０を上述の接点Ａとし、変圧器側接点１１を上述の接点Ｂとすることにより、更なる省電力化を図ることができる。
【００３１】
第２の制御リレー７については、電源電圧側接点１４と変圧器側接点１５とで切り換わっている時間が長い方を上述の接点Ｂと決定すれば、更なる省電力化が可能である。
【００３２】
【発明の効果】
以上のように、本発明によれば、変圧器を用いて圧縮機の能力を変化させることができるものにおいて、電源電圧を印加している通常運転時には変圧器に通電しないようにしたので、変圧器で損失が発生せずに圧縮機を運転することができる。
【００３３】
また、前記第１の制御リレーと直列に接続され、圧縮機を電源電圧から変圧器側へと接続切換する第２の制御リレーは、その切換切片がその電源側から変圧器側へ、またその逆方向の切り換わり動作を利用して、圧縮機をＯＮ／ＯＦＦさせる制御用スイッチとして兼ねることができるので、部品数を減らし、コストダウンを図ることもできる。
【図面の簡単な説明】
【図１】 本発明に係る圧縮機の運転回路である。
【図２】 従来の一例として示す圧縮機の運転回路である。
【図３】 本発明が改良の対象とする従来の圧縮機の運転回路である。
【符号の説明】
１ 圧縮機
２ 電源プラグ
３ 変圧器
６ 第１の制御リレー
７ 第２の制御リレー
１１ 変圧器側接点[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation circuit for operating a compressor of a refrigerator.
[0002]
[Prior art]
The refrigerator compressor is required to have sufficient cooling capacity even when the cooling load in the refrigerator is high. That is, during pull-down operation immediately after turning on the power, when cooling operation is resumed after defrosting (in this case, the internal temperature rises), when the internal state is full of stored items, and the temperature suddenly increases. Compressing with sufficient cooling capacity when the cooling load is maximized, such as when high-quality items are put in, or when a large amount of outside air enters when the door opens and closes and the internal temperature rises The machine is set.
[0003]
[Problems to be solved by the invention]
Therefore, at the time of stable normal operation other than at the time of high load as described above, the compressor is operated with a margin, and as a result, extra power is consumed.
[0004]
FIG. 2 shows the conventional compressor operation circuit, in which the power supply voltage (AC100V) is turned on and off as it is using the controller 20 such as the relay RY, and the compressor 22 having sufficient capacity is operated. However, in this circuit, the compressor 22 cannot be operated in accordance with the load fluctuation of the refrigerator.
[0005]
Further, as an example of changing the capacity of the compressor 23 in accordance with the load fluctuation, as shown in FIG. 3, when a capacity is required using a transformer 24, a high supply voltage (step-up by a transformer) is added, There has been proposed a circuit in which switching that gives a low voltage (power supply voltage) in a normal time is performed by a controller 25 using a relay RY.
[0006]
However, in the circuit of FIG. 3, there is a problem that a loss in the transformer 24 always occurs because the connection line 26 for supplying power to the transformer 24 is always energized.
[0007]
The present invention solves the above-described problem, and is capable of operating a compressor corresponding to load fluctuations using a transformer and energizing the transformer only at a high load, and normally does not energize the operation circuit. Thus, an operation control device for a refrigerator that can save power can be provided.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is the common terminal compressor (1), a power supply plug (2) connected to a commercial power source, connected to the power supply plug (2) for cooling drive of the refrigerator (8) And a first control relay (6) having two contacts (10, 11) for switching a switching piece (9) connected to the terminal (8) , and a common terminal (12 connected to the compressor (1)). ) and the terminal (switching換切piece leading to 12) (a second control relay having a 13) is cut switched two contacts (14, 15) (7), one of the first control relay (6) Primary connection to the wiring (16) connecting the contact (10) of the second control relay (10) and one contact (14) of the second control relay (7) and the other contact (11) of the first control relay (6) is characterized in further comprising a transformer side to boost the other contact (15) on the secondary side connected to the voltage of the second control relay is connected (7) (3).
[0009]
Further, during high load operation, the first control relay (6) is switched to the other contact (11) side and the second control relay (7) is switched to the other contact (15) side. It is a feature.
[0010]
During normal operation, the first control relay (6) is switched to the one contact (10) side and the second control relay (7) is switched to the one contact (14) side. It is what.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is an operation circuit of a compressor according to the present invention, where 1 is a compressor, 2 is a power plug connected to a commercial power supply 100V, and 3 is capable of operating the compressor 1 with the ability to match the load fluctuation. This is a transformer for giving such a voltage, and when the compressor 1 needs capacity, a boosted voltage is supplied.
[0013]
A first control relay (RY1) 6 and a second control relay (RY2) 7 are connected in series to one power supply line 5A to which the compressor 1 is connected to a power source.
[0014]
In other words, the first control relay 6 includes a power supply side common terminal (COM) 8 and two contacts at which a switching piece 9 connected to the terminal 8 switches, that is, a compressor side contact 10 and a transformer side contact 11. It is a thing.
[0015]
Further, the second control relay 7 has two contact points at which a compressor side common terminal 12 (COM) and a switching piece 13 connected to the terminal 12 are switched, that is, a power source side contact 14 and a transformer side contact 15. It is a thing of composition. The compressor side contact 10 of the first control relay 6 and the power supply side contact 14 of the second control relay 7 are connected by a wiring 16. Reference numeral 5B denotes the other power supply line.
[0016]
Further, the first control relay 6 has a transformer-side contact 11 for connecting the transformer 3 to a power source, the control relay 6 is operated, and the switching piece 9 is shown in a broken line state in the figure. When switched to, the transformer 3 is connected to a power source and energized.
[0017]
Here, since the first control relay 6 normally switches its switching piece 9 to the compressor side contact 10 as shown by the solid line state in the figure, the transformer side contact 11 is opened (open). N.O) state. The primary side (primary side base line) 3a of the transformer 3 is connected to the contact 11 on the open side.
[0018]
On the other hand, the second control relay 7 has a transformer side contact 15 for connecting the transformer 3 and the compressor 1, and the secondary side (secondary side winding of the transformer 3) is connected to the transformer side contact 15. Line) 3b is connected. Therefore, when the control relay 7 is operated and the switching piece 13 is switched as shown by the broken line in FIG. 1, the boosted voltage is applied to the compressor 1 through the transformer 3. Yes.
[0019]
With the above circuit configuration, the first control relay 6 and the second control relay 7 operate as follows.
[0020]
That is, normally, the first control relay 6 is connected to the compressor side contact 11 as shown in the solid line diagram, and the second control relay 7 is shown in the solid line diagram as the switching piece 13. In addition, the power supply side contact 14 is connected. Therefore, in this case, the compressor 1 is operated by applying the power supply voltage of the commercial power supply 100V. This case is performed during normal operation when the load is low and the compressor 1 is not required to have a large capacity.
[0021]
At this time, the transformer 3 has its primary side 3a open and is disconnected from the power source, so that no power loss occurs.
[0022]
On the other hand, at the time of high load such as pull-down operation after power-on or resumption of cooling operation after defrosting, the first control relay 6 switches its switching piece 9 to the transformer-side contact 11 as shown in the broken line diagram, Connect to the primary side of the transformer 3. At the same time, the second control relay 7 also switches the switching section 13 to the transformer side contact 15 as shown in the broken line diagram, and connects the compressor 1 to the secondary side of the transformer 3. As a result, the transformer 3 is connected to the power supply voltage, and the primary side 3a is supplied with power, so that the secondary voltage boosted by the transformer 3 is applied to the compressor 1. For this reason, the driving capability of the compressor 1 is improved, and it is possible to cope with a high load state.
[0023]
Due to the operation circuit of the compressor 1 as described above, the transformer 3 is energized only when the compressor 1 needs capacity, and is not energized during normal operation, so that the loss of the transformer 3 does not occur during normal operation. A large power saving effect can be obtained. In this case, it is desirable to pay attention to the following points when selecting the compressor 1 and the transformer 3.
,
That is, the compressor 1 is selected so that the power supply voltage is most efficient when it is normally stable, and the output voltage of the transformer 3 is determined so that the compressor 1 can survive the high load.
[0025]
Further, when the transformer 3 is used, the loss of the transformer 3 is inevitably generated, so it is better not to use it for a long time. Considering the case where the refrigerator is cooled by switching between two operations of normal operation and high load, in the normal usage form of the refrigerator, the operation at high load is a short period only under specific conditions, and most This period is usually stable operation. For this reason, it is desirable to operate the compressor 1 with the power supply voltage as it is and to prevent power from being supplied to the transformer 3 during normal stabilization. And it can contribute to power saving more by boosting with the transformer 3 only at the time of high load, cooling rapidly, and switching to normal stable operation quickly.
[0026]
In the normal stable operation of the refrigerator of the present application, the compressor 1 is stopped when the preset lower limit temperature is reached, and the compressor 1 is started when the preset upper limit temperature is reached. It has become.
[0027]
In addition, the second control relay 7 has a role of switching and connecting the transformer 3 and the compressor 1, but can also serve as a control switch for ON / OFF control of the compressor 1. That is, for example, during the normal operation in which the switching piece 9 of the first control relay 6 is switched to the compressor-side contact 10, if the refrigerator temperature reaches a preset lower limit temperature, the first control relay 6 Only the second control relay 7 switches the switching section 13 to the transformer-side contact 15 while the switching section 9 is switched to the compressor-side contact 10, and the compressor 1 is stopped. Further, when the temperature rises to a preset upper limit temperature, it can be switched to the power source side contact 11 so that the compressor 1 is operated by energizing again, and can be kept at a predetermined internal temperature.
[0028]
Thus, since the second control relay 7 can also be used as a relay for ON / OFF control of the compressor, it is not necessary to separately provide a dedicated changeover switch, and an effect of reducing the number of parts can be obtained.
[0029]
The above operation is summarized as follows.
(1) When the compressor is ON during normal operation, the switching segment 9 of the first control relay 6 is switched to the compressor side contact 10 and the switching segment 13 of the second control relay 7 is the compressor side contact. 14 is switched.
(2) When the compressor is OFF during normal operation, the switching segment 9 of the first control relay 6 is switched to the compressor side contact 10 and the switching segment 13 of the second control relay 7 is the transformer side contact. It is switched to 15.
(3) During high load operation, the switching piece 9 of the first control relay 6 is switched to the transformer-side contact 11, and the switching piece 13 of the second control relay 7 is switched to the transformer-side contact 15.
(4) If the switching piece 13 of the second control relay 7 is switched to the compressor side contact 14 while the switching piece 9 of the first control relay 6 is switched to the transformer side contact 11, the compressor 1 Although the operation is stopped, the voltage is supplied to the transformer 3 to cause a loss, so that such a switching state is not performed.
[0030]
Some relays switch the switching piece to one contact A when a control voltage is applied, and switch the switching piece to the other contact B (normally open contact) when no control voltage is applied. When such a relay is used, the first control relay 6 is switched to the compressor-side contact 10 for most of the period. Therefore, the compressor-side contact 10 is the above-described contact A, and the transformer-side contact is used. By using 11 as the above-mentioned contact B, further power saving can be achieved.
[0031]
As for the second control relay 7, if the longer switching time between the power supply voltage side contact 14 and the transformer side contact 15 is determined as the above-described contact B, further power saving can be achieved.
[0032]
【The invention's effect】
As described above, according to the present invention, in the compressor capable of changing the capacity of the compressor using the transformer, the transformer is not energized during normal operation while applying the power supply voltage. The compressor can be operated without any loss in the compressor.
[0033]
The second control relay, which is connected in series with the first control relay and switches the compressor from the power supply voltage to the transformer side, has a switching section from the power supply side to the transformer side, and Since the reverse switching operation can be used as a control switch for turning the compressor ON / OFF, the number of parts can be reduced and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is an operation circuit of a compressor according to the present invention.
FIG. 2 is an operation circuit of a compressor shown as an example of the prior art.
FIG. 3 is an operation circuit of a conventional compressor to be improved by the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compressor 2 Power plug 3 Transformer 6 1st control relay 7 2nd control relay 11 Transformer side contact

Claims (3)

冷蔵庫を冷却駆動する圧縮機(1)と、
商用電源に接続される電源プラグ (2) と、
前記電源プラグ (2) につながる共通端子 (8) とこの端子 (8) につながる切換切片 (9) が切り換わる２個の接点 (10,11) を備えた第１の制御リレー (6) と、
前記圧縮機 (1) につながる共通端子 (12) とこの端子 (12) につながる切換切片 (13) が切り換わる２個の接点 (14,15) を備えた第２の制御リレー (7) と、
前記第１の制御リレー (6) の一方の接点 (10) と前記第２の制御リレー (7) の一方の接点 (14) とを接続する配線 (16) と、
前記第１の制御リレー (6) の他方の接点 (11) に一次側が接続され前記第２の制御リレー (7) の他方の接点 (15) に二次側が接続されて電圧を昇圧する変圧器 (3)とを備えることを特徴とする冷蔵庫の運転制御装置。A compressor (1) for cooling the refrigerator;
A power plug (2) connected to the commercial power supply ;
A first control relay (6) having two contacts (10, 11) for switching a common terminal (8) connected to the power plug (2) and a switching piece (9) connected to the terminal (8 ) ; ,
A second control relay (7) having two contacts (14, 15) for switching a common terminal (12) connected to the compressor (1) and a switching piece (13) connected to the terminal (12 ) ; ,
Wiring (16) for connecting one contact (10) of the first control relay (6) and one contact (14) of the second control relay (7) ;
Transformer for boosting voltage by connecting the primary side to the other contact (11) of the first control relay (6) and connecting the secondary side to the other contact (15) of the second control relay (7) (3) and a refrigerator operation control device. 高負荷運転時は、前記第１の制御リレー(6)を前記他方の接点 (11)側に切り換え且つ第２の制御リレー(7)を前記他方の接点 (15)側に切り換えることを特徴とする請求項１記載の冷蔵庫の運転制御装置。During high load operation, the first control relay (6) is switched to the other contact (11) side and the second control relay (7) is switched to the other contact (15) side. The refrigerator operation control device according to claim 1. 通常運転時は、前記第１の制御リレー(6)を前記一方の接点 (10)側に切り換え且つ第２の制御リレー (7) を前記一方の接点 (14) 側に切り換えることを特徴とする請求項１記載の冷蔵庫の運転制御装置。During normal operation, the first control relay (6) is switched to the one contact (10) side, and the second control relay (7) is switched to the one contact (14) side. The refrigerator operation control device according to claim 1.
JP27586498A 1998-09-29 1998-09-29 Refrigerator operation control device Expired - Fee Related JP3935627B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27586498A JP3935627B2 (en) 1998-09-29 1998-09-29 Refrigerator operation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27586498A JP3935627B2 (en) 1998-09-29 1998-09-29 Refrigerator operation control device

Publications (2)

Publication Number Publication Date
JP2000104664A JP2000104664A (en) 2000-04-11
JP3935627B2 true JP3935627B2 (en) 2007-06-27

Family

ID=17561501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27586498A Expired - Fee Related JP3935627B2 (en) 1998-09-29 1998-09-29 Refrigerator operation control device

Country Status (1)

Country Link
JP (1) JP3935627B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102012031607A2 (en) * 2012-12-11 2014-09-09 Whirlpool Sa ELECTRIC REFRIGERATION SYSTEM

Also Published As

Publication number Publication date
JP2000104664A (en) 2000-04-11

Similar Documents

Publication Publication Date Title
KR20080035173A (en) Air conditioner and control method thereof
JP2000184719A (en) Power supply circuit and method
JP3935627B2 (en) Refrigerator operation control device
JPH11345363A (en) Cooling unit controller
JPH06276610A (en) Driver for motor
JPH1097355A (en) Power circuit for microcomputer
JP2001091013A (en) Control device for air conditioner
JP4151242B2 (en) Commercial power latch system for uninterruptible power supply system
KR0184211B1 (en) High power motor driving method
JPH02118355A (en) Alternative operation control circuit for air conditioner
JP3552541B2 (en) rice cooker
JP2590286B2 (en) refrigerator
KR200251810Y1 (en) Circuit for reducing power in consumption in a refrigerator
JPH04263733A (en) Power supply device for air conditioner
JPS6229853A (en) Air conditioner
KR100885515B1 (en) A control circuit of refrigerator
JPS6216611Y2 (en)
WO2020148987A1 (en) Air conditioner and preheating operation method
JP2001266726A (en) Control method of load-switchgear
JPH11136980A (en) Cooler
KR20010080794A (en) Circuit for control lamp in refrigerator
JPH06147659A (en) Device for keeping temperature of compressor
JP2555084Y2 (en) Protection circuit of hermetic electric compressor
JPH1014268A (en) Control of star-delta starting electromagnetic contactor
JP2001275253A (en) Power supply circuit

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20051226

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20061117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20061121

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070122

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: 20070220

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070320

LAPS Cancellation because of no payment of annual fees