JP2614479B2 - Cooling operation device - Google Patents
Cooling operation deviceInfo
- Publication number
- JP2614479B2 JP2614479B2 JP3496988A JP3496988A JP2614479B2 JP 2614479 B2 JP2614479 B2 JP 2614479B2 JP 3496988 A JP3496988 A JP 3496988A JP 3496988 A JP3496988 A JP 3496988A JP 2614479 B2 JP2614479 B2 JP 2614479B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- defrosting
- evaporator
- valve
- refrigerant
- 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 - Lifetime
Links
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- Defrosting Systems (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は冷蔵庫等において、庫内に複数台の冷却装置
が設置されて冷却する冷却運転装置に関する。The present invention relates to a cooling operation device in a refrigerator or the like, in which a plurality of cooling devices are installed in a refrigerator to perform cooling.
（ロ）従来技術 従来、複数台の冷却装置を備えて、何れかの一台が除
霜中であっても、残りの冷却装置は冷却運転状態とし
て、除霜のために冷却を一時中断することなく、庫内を
所定の温度に保持できるような冷却運転装置が、例えば
特公昭62−25952号公報に示す如く提案されている。こ
の公報によれば、共通の第１冷媒液管の入口側に設けた
開閉弁を介して、各冷却コイルの一端を接続し、他端は
それぞれ三方弁を介して、第２冷媒液管より冷媒供給さ
れるかもしくは共通の吸入管に冷媒ガスが排出されるか
選択切換形成されるような配管構成としてある。(B) Conventional technology Conventionally, a plurality of cooling devices are provided, and even if one of the cooling devices is being defrosted, the remaining cooling devices are set to a cooling operation state and the cooling is temporarily suspended for defrosting. A cooling operation device capable of maintaining the inside of a refrigerator at a predetermined temperature without any problem has been proposed, for example, as disclosed in Japanese Patent Publication No. 62-25952. According to this publication, one end of each cooling coil is connected via an on-off valve provided on the inlet side of a common first refrigerant liquid pipe, and the other end is connected to the second refrigerant liquid pipe via a three-way valve. The piping is configured such that the refrigerant is supplied or the refrigerant gas is discharged to a common suction pipe or the selection is formed.
（ハ）発明が解決しようとする課題 しかしながら、前記特公昭62−25952号公報では、各
冷却コイルが除霜と冷却とを兼用しているので、冷却コ
イルには冷媒を正逆方向に流さねばならず、そのため
に、高価、且つ、複雑な機構の三方弁を冷却装置と同数
個要する構成となっていて、コスト高を招き、また、配
管接続が複雑となっている。(C) Problems to be Solved by the Invention However, in the above-mentioned Japanese Patent Publication No. 62-25952, since each cooling coil serves both of defrosting and cooling, it is necessary to flow the refrigerant in the cooling coils in the forward and reverse directions. However, for that purpose, the structure requires the same number of expensive and complicated three-way valves as the cooling device, resulting in high cost and complicated piping connection.
本発明は上記の点に鑑みてなされたもので、開閉弁の
切り換えのみによる簡単な配管構成で、任意の一台は除
霜、残りは冷却とすることのできる冷却運転装置を提供
することを目的とする。The present invention has been made in view of the above points, and provides a cooling operation device that has a simple piping configuration only by switching an on-off valve, one of which is capable of defrosting, and the other being capable of cooling. Aim.
（ニ）課題を解決するための手段 本考案の冷却運転装置は、各冷却装置がそれぞれ、冷
却専用蒸発器と除霜専用蒸発器とを備え、それぞれの除
霜専用蒸発器の一端は、圧縮機より吐出する高圧冷媒液
の供給管にそれぞれ第１開閉弁を介して共通接続する一
方、冷却作用をして低圧冷媒ガスとなって出て来る冷却
専用蒸発器の出入口端はそれぞれ圧縮機に戻る吸入管に
共通接続し、前記各除霜専用蒸発器の冷媒出口側である
他端同士は互いに一本の共通冷媒管で連通させ、かつ、
この共通冷媒管には、それぞれ第２開閉弁と膨張弁を介
して、それぞれの前記冷却専用蒸発器の他端側を接続さ
せ、第１および第２開閉弁の選択的開閉操作により、何
れか一つの除霜専用蒸発器に高温、高圧冷媒液を流して
除霜を行ない、蒸発器通過後の冷媒液は残りの冷却装置
の冷却専用蒸発器に流れて冷却がなされるようにしたも
のである。(D) Means for Solving the Problems In the cooling operation device of the present invention, each cooling device includes a cooling evaporator and a defrost evaporator, and one end of each defrost evaporator is compressed. The supply pipes for the high-pressure refrigerant liquid discharged from the compressor are connected in common via the first on-off valves, respectively. Commonly connected to the return suction pipe, the other ends on the refrigerant outlet side of each of the defrosting evaporators are connected to each other by one common refrigerant pipe, and
The other end of each of the dedicated cooling evaporators is connected to the common refrigerant pipe via a second on-off valve and an expansion valve, respectively, and any one of the first and second on-off valves is selectively opened and closed. A high-temperature, high-pressure refrigerant liquid flows through one defrost-only evaporator to perform defrosting, and the refrigerant liquid after passing through the evaporator flows to a cooling-only evaporator of the remaining cooling device to be cooled. is there.
（ホ）作用 上記の構成で、各第１開閉弁のうち任意の一つを開成
すると、圧縮機より高圧冷媒液が圧送されて除霜専用蒸
発器に流れて除霜され、この蒸発器を出た過冷却冷媒液
は、除霜中となっている冷却装置の第２開閉弁は閉止し
ているので、そこへは流れず、他の冷却装置の第２開閉
弁がそれぞれ開路しているので、共通冷媒管を通してそ
れぞれの冷却専用蒸発器へ膨張弁を介して低圧冷媒液と
なって流入し、冷却作用をなして吸入管を通り、圧縮機
に戻る。(E) Operation In the above configuration, when any one of the first on-off valves is opened, the high-pressure refrigerant liquid is pressure-fed from the compressor and flows to the defrosting-only evaporator to be defrosted. The discharged supercooled refrigerant liquid does not flow there because the second on-off valve of the cooling device being defrosted is closed, and the second on-off valves of the other cooling devices are open. Therefore, the refrigerant flows into each cooling evaporator through the common refrigerant pipe as low-pressure refrigerant liquid via the expansion valve, and performs a cooling action, passes through the suction pipe, and returns to the compressor.
よって、残りの冷却装置はそれぞれ冷却運転となって
庫内を所定温に保つ。この第１、および第２開閉弁の開
閉を選択操作することによって、除霜される冷却装置を
交互に切り換えて行くことができ、常に設置された複数
台の冷却装置のうち、任意の一台は除霜運転され、残り
の他の冷却装置は冷却運転されることとなる。Therefore, each of the remaining cooling devices performs a cooling operation to keep the inside of the refrigerator at a predetermined temperature. By selectively operating the opening and closing of the first and second on-off valves, the cooling device to be defrosted can be alternately switched, and any one of the plurality of cooling devices always installed can be switched. Is subjected to a defrosting operation, and the remaining cooling devices are operated to perform a cooling operation.
（ヘ）実施例 第１図〜第４図は本発明の一実施例を示し、第１図
（ａ）は冷蔵庫内に設置される冷却装置の外観図にし
て、同図（ｂ）は外装カバーを取外した時の外観図、第
２図は第１図で示す冷却装置を３台用いて冷却、除霜を
行なう冷却運転装置の冷媒配管路図、第３図は左端側の
冷却装置を除霜運転させたときの冷媒流路図、第４図は
中央の冷却装置を除霜運転させたときの冷媒流路図を示
す。実施例では、冷却装置A,B,Cが３台、冷蔵庫１内に
設置され、それぞれ、庫内の空気を吸入用ダクト２によ
り吸入み、熱交換されて冷気となり、吐出用ダクト３よ
り庫内に送風機４により送風される。５はその送風量を
調節するダンパーである。この３台の冷却装置A,B,Cは
内部に冷却専用蒸発器6a,6b,6cと、除霜専用蒸発器7a,7
b,7cとを具備する。そして、これらの蒸発器6a,6b,6c,7
a,7b,7cに対する圧縮機８からの冷媒流路は、第２図の
如き配管構成となっている。即ち、第２図において、９
は圧縮機８より吐出する高温、高圧冷媒液の供給管で、
その先端は、それぞれの冷却装置A,B,Cに対応して並列
分岐され、その分岐管に介挿した第１開閉弁10,11,12を
介して、それぞれの冷却装置A,B,Cの除霜専用蒸発器7a,
7b,7cの一端に接続されている。また、アキュームレー
ター13を介して圧縮機８には、各冷却装置A,B,Cの冷却
専用蒸発器6a,6b,6cの一端が共通接続され、冷却作用を
終えた低圧冷媒ガスが吸入管14に集中されて圧縮機８に
戻る。(F) Embodiment FIGS. 1 to 4 show an embodiment of the present invention. FIG. 1 (a) is an external view of a cooling device installed in a refrigerator, and FIG. FIG. 2 is a perspective view of the cooling operation device for performing cooling and defrosting using three cooling devices shown in FIG. 1 when the cover is removed, and FIG. FIG. 4 is a refrigerant flow diagram when the defrosting operation is performed, and FIG. 4 is a refrigerant flow diagram when the central cooling device is defrosted. In the embodiment, three cooling devices A, B, and C are installed in the refrigerator 1, and the air in the refrigerator is sucked in by the intake duct 2, and heat is exchanged to become cool air. Is blown by the blower 4. Reference numeral 5 denotes a damper for adjusting the amount of air blow. The three cooling devices A, B, and C have evaporators 6a, 6b, 6c dedicated to cooling and evaporators 7a, 7 dedicated to defrosting inside.
b, 7c. And these evaporators 6a, 6b, 6c, 7
Refrigerant flow paths from the compressor 8 to a, 7b, and 7c have a piping configuration as shown in FIG. That is, in FIG.
Is a supply pipe for high-temperature, high-pressure refrigerant liquid discharged from the compressor 8,
The tip is branched in parallel corresponding to each of the cooling devices A, B, and C, and the respective cooling devices A, B, and C are passed through the first on-off valves 10, 11, and 12 inserted into the branch pipes. Defrost evaporator 7a,
It is connected to one end of 7b, 7c. One end of the cooling evaporators 6a, 6b, 6c of the respective cooling devices A, B, C is commonly connected to the compressor 8 via the accumulator 13, and the low-pressure refrigerant gas having completed the cooling operation is supplied to the suction pipe. It returns to the compressor 8 after being concentrated on 14.
一方、各冷却装置A,B,Cの除霜専用蒸発器7a,7b,7cの
冷媒出口側である他端同士は一本の共通する冷媒管15に
連通接続されている。そして、この共通冷媒管15には、
第２開閉弁16,17,18と膨張弁19,20,21とを介してそれぞ
れの冷却専用蒸発器6a,6b,6cの他端が並列接続されてい
る。前記第１開閉弁10,11,12および第２開閉弁16,17,18
は電磁式バルブである。そして、前記第２開閉弁16,17,
18と膨張弁19,20,21との組み合わせにより冷却専用蒸発
器6a,6b,6cへ流す低圧冷媒液の生成供給装置22,23,24を
形成する。25,26,27は除霜専用蒸発器7a,7b,7cの出口側
に設けた逆止弁である。28は液溜りである。On the other hand, the other ends on the refrigerant outlet side of the evaporators 7a, 7b, 7c dedicated to defrosting of the respective cooling devices A, B, C are connected to one common refrigerant pipe 15. And, in this common refrigerant pipe 15,
The other ends of the cooling evaporators 6a, 6b, 6c are connected in parallel via the second on-off valves 16, 17, 18 and the expansion valves 19, 20, 21, respectively. The first on-off valves 10, 11, 12 and the second on-off valves 16, 17, 18
Is an electromagnetic valve. And the second on-off valves 16, 17,
The combination of the 18 and the expansion valves 19, 20, 21 forms low-pressure refrigerant liquid generating / supplying devices 22, 23, 24 to flow to the cooling-only evaporators 6a, 6b, 6c. 25, 26 and 27 are check valves provided on the outlet side of the evaporators 7a, 7b and 7c dedicated to defrosting. 28 is a liquid pool.
次に、以上のような冷媒配管路構成においてその運転
動作を説明する。Next, the operation of the above refrigerant pipe configuration will be described.
先ず、冷却装置Ａを除霜運転し、残りの冷却装置B,C
を冷却運転する場合を第３図に基づいて説明すると、除
霜対称とする冷却装置Ａの第１開閉弁10を開路し、第２
開閉弁16は閉路するように操作し、一方、残りの冷却装
置ＢおよびＣにおける第１開閉弁11,12と第２開閉弁17,
18はそれぞれ閉路、並びに開路するように操作する。こ
れによって、圧縮機８より吐出する高温、高圧冷媒液は
矢印の如く、冷却装置Ａの除霜専用蒸発器7aに流れ、冷
却装置Ａに付着した霜を除霜する。そして、この蒸発器
7aを出た過冷却状態の冷媒液は共通管15を通して、他の
冷却装置B,Cの冷却専用蒸発器6b,6cに、開路されている
第２開閉弁17,18を介して流れるようになる。実際に
は、過冷却冷媒が膨張弁20,21の作用により低温冷媒液
となって冷却専用蒸発器6b,6cを通過し、その間に庫内
の空気を冷却し、庫内を所定温に保つ。そして、蒸発し
た低圧冷媒ガスは吸入管14により圧縮機８に戻る。以上
のようにして、３台ある冷却装置A,B,Cの内、１台の冷
却装置Ａは除霜運転され残りの２台の冷却装置B,Cは冷
却運転されることになる。First, the cooling device A is defrosted, and the remaining cooling devices B and C are operated.
The cooling operation of the cooling device A will be described with reference to FIG. 3.
The on-off valve 16 is operated to be closed, while the first on-off valves 11 and 12 and the second on-off valves 17 and 17 in the remaining cooling devices B and C are operated.
18 operates to close and open respectively. As a result, the high-temperature, high-pressure refrigerant liquid discharged from the compressor 8 flows to the defrosting evaporator 7a of the cooling device A as shown by the arrow, and defrosts the frost attached to the cooling device A. And this evaporator
The supercooled refrigerant liquid that has exited 7a flows through the common pipe 15 to the cooling evaporators 6b and 6c of the other cooling devices B and C via the second on-off valves 17 and 18 that are open. Become. Actually, the supercooled refrigerant becomes a low-temperature refrigerant liquid by the action of the expansion valves 20 and 21 and passes through the cooling-only evaporators 6b and 6c, during which the air in the refrigerator is cooled and the interior of the refrigerator is maintained at a predetermined temperature. . Then, the evaporated low-pressure refrigerant gas returns to the compressor 8 through the suction pipe 14. As described above, of the three cooling devices A, B, and C, one of the cooling devices A is subjected to the defrosting operation, and the other two cooling devices B and C are subjected to the cooling operation.
次に、冷却装置Ａの除霜運転が設定された時間だけ行
なわれて除霜が終了すると、この冷却装置Ａは冷却運転
へと移る。そして、次の冷却装置Ｂを除霜運転すること
になる。この時の運転動作を示したのが第４図である。
即ち、今後は冷却装置Ｂ側の第１開閉弁11が開路操作さ
れ、今まで開路していた冷却装置Ａの第１開閉弁10は閉
じ、また、冷却装置Ｃの第１開閉弁12は閉じたままとな
っている。一方、第２開閉弁16,17,18に置いても、冷却
装置Ｂの第２開閉弁17は閉路し、代りに、残りの第２開
閉弁16,18がそれぞれ開路された状態となる。これによ
って冷媒の流れは矢印の如くなり、高温、高圧冷媒液が
冷却装置Ｂの除霜専用蒸発器7bに流れて、この冷却装置
の除霜を行なう。そして、蒸発器7b通過後の過冷却冷媒
液はそれぞれ共通冷媒管15を通して残りの冷却装置A,C
へ分流される。分流した冷媒液は、第２開閉弁16,18を
通り、膨張弁19,21により低圧冷媒液となり、冷却専用
蒸発器6a,6c内を流れ、庫内の空気を冷却して、庫内を
所定温に保つ。冷却後は低圧冷媒ガスとなって吸入管14
を介して圧縮機８に戻る。Next, when the defrosting operation of the cooling device A is performed for the set time and the defrosting is completed, the cooling device A shifts to the cooling operation. Then, the next cooling device B is operated for defrosting. FIG. 4 shows the driving operation at this time.
That is, in the future, the first opening / closing valve 11 of the cooling device B will be opened, the first opening / closing valve 10 of the cooling device A which has been opened will be closed, and the first opening / closing valve 12 of the cooling device C will be closed. It is still standing. On the other hand, even if the second on-off valves 16, 17, 18 are placed, the second on-off valves 17 of the cooling device B are closed, and instead, the remaining second on-off valves 16, 18 are opened. As a result, the flow of the refrigerant becomes as shown by the arrow, and the high-temperature, high-pressure refrigerant liquid flows to the defrosting evaporator 7b of the cooling device B to perform defrosting of the cooling device. Then, the supercooled refrigerant liquid after passing through the evaporator 7b is passed through the common refrigerant pipe 15 to the remaining cooling devices A and C.
Diverted to The diverted refrigerant liquid passes through the second on-off valves 16 and 18, becomes low-pressure refrigerant liquid by the expansion valves 19 and 21, flows through the cooling evaporators 6a and 6c, cools the air in the refrigerator, and cools the interior of the refrigerator. Keep at the prescribed temperature. After cooling, it becomes low-pressure refrigerant gas and becomes
And returns to the compressor 8.
このように、今後は冷却装置Ｂが除霜運転状態とな
り、他の冷却装置A,Cが冷却運転状態となる。Thus, the cooling device B will be in the defrosting operation state, and the other cooling devices A and C will be in the cooling operation state in the future.
そして、この冷却装置Ｂが除霜が終了すれば、冷却装
置Ｃが除霜運転されるように各第１および第２開閉弁1
0,11,12,16,17,18が同様の方法で開閉操作される。When the defrosting of the cooling device B is completed, the first and second on-off valves 1 and 2 are operated such that the defrosting operation of the cooling device C is performed.
0, 11, 12, 16, 17, and 18 are opened and closed in a similar manner.
なお、図示実施例では、冷却専用蒸発器6a,6b,6cに流
す低圧冷媒液の生成供給装置22,23,24として、第２開閉
弁と膨張弁との組合せ物で構成したが、これを今後普及
されるであろう電子膨張弁によって使用することも可能
である。また、各冷却装置A,B,Cにおいて、高温、高圧
冷媒液の熱の影響を受けにくい所には、補助ヒーターを
装備することにより、除霜を完全なものとすることがで
きる。In the illustrated embodiment, the low-pressure refrigerant liquid generating / supplying devices 22, 23, and 24 flowing through the cooling only evaporators 6a, 6b, and 6c are configured by a combination of the second on-off valve and the expansion valve. It can also be used with electronic expansion valves that will become popular in the future. Further, in each of the cooling devices A, B, and C, the defrosting can be completed by providing an auxiliary heater in a place that is not easily affected by the heat of the high-temperature and high-pressure refrigerant liquid.
（ト）発明の効果 以上説明したように本発明によれば、冷却専用蒸発器
と除霜専用蒸発器とを有する冷却装置を複数台庫内に具
備し、高温、高圧冷媒液を除霜専用蒸発器に供給するか
停止するかを行なう第１の開閉弁と、蒸発器通過後の冷
媒液を今後は他の冷却専用蒸発器へと流すのを制御する
第２開閉弁とで、それぞれを開閉操作することのみで、
冷媒流路を切換変更できて、任意の１台の冷却装置を除
霜、残りの冷却装置を冷却運転とすることが簡単にでき
る。そして、これら開閉弁は冷媒の流通、停止のみを行
なう単純構造のもので良く、従来の３方弁使用に比較し
て全体のコストを低減でき、また、配管構成も非常に簡
単となるなどの実用的効果を奏する。(G) Effects of the Invention As described above, according to the present invention, a plurality of cooling devices each having a cooling-only evaporator and a defrosting-only evaporator are provided in a refrigerator, and a high-temperature, high-pressure refrigerant liquid is dedicated to defrosting. A first on-off valve for supplying or stopping the supply to the evaporator, and a second on-off valve for controlling the flow of the refrigerant liquid after passing through the evaporator to another cooling-only evaporator in the future. Only by opening and closing,
The refrigerant flow path can be switched and changed, so that it is easy to perform defrosting for one arbitrary cooling device and cooling operation for the remaining cooling devices. These open / close valves may have a simple structure that only allows the flow and stop of the refrigerant. The overall cost can be reduced as compared with the use of the conventional three-way valve, and the piping configuration is also very simple. It has a practical effect.
図面は本発明の一実施例を示し、第１図は庫内に設置さ
れる冷却装置の外観図で、同図（ａ）は外装カバー装着
時の外観図、同図（ｂ）は外装カバー取外し時の外観
図、第２図は複数台の冷却装置と圧縮機との冷却流通関
係を示す冷媒配管路図、第３図は冷却装置Ａを除霜運転
し、残りを冷却運転する運転動作時の冷媒流路図、第４
図は冷却装置Ｂを除霜運転し、残りを冷却運転とする運
転動作時の冷媒流路図である。 A,B,C……冷却装置、１……冷蔵庫、6a,6b,6c……冷却
専用蒸発器、7a,7b,7c……除霜専用蒸発器、８……圧縮
機、９……供給管。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is an external view of a cooling device installed in a refrigerator, FIG. 1 (a) is an external view when an external cover is attached, and FIG. 1 (b) is an external cover. FIG. 2 is a refrigerant piping diagram showing a cooling distribution relationship between a plurality of cooling devices and a compressor, and FIG. 3 is an operation operation of performing a defrosting operation of the cooling device A and a cooling operation of the rest. Flow path diagram at the time, 4th
The figure is a refrigerant flow diagram at the time of an operation operation in which the cooling device B performs the defrosting operation and the remaining cooling operation. A, B, C: Refrigerator, 1: Refrigerator, 6a, 6b, 6c: Evaporator for exclusive use of cooling, 7a, 7b, 7c: Evaporator for exclusive use of defrost, 8: Compressor, 9: Supply tube.
Claims (1)
る冷却装置を複数台庫内に設置し、各除霜専用蒸発器の
一端を、圧縮機より吐出される高圧冷媒液の供給管にそ
れぞれ第１開閉弁を介して共通接続する一方、各冷却専
用蒸発器の一端を前記圧縮機に戻る低圧冷媒ガスの吸入
管に共通接続し、前記各除霜専用蒸発器の冷媒出口端同
士を、一本の共通する冷媒管に連通接続し、かつ、この
冷媒管にそれぞれ前記冷却専用蒸発器の他端を膨張弁と
第２開閉弁を介して並列接続し、各冷却装置のうち任意
の一台の除霜する時は、該当する第１開閉弁を開き、第
２開閉弁を閉じて高圧冷媒液を除霜専用蒸発器に流し、
通過後の冷媒液をさらに残りの冷却装置における第１及
び第２の開閉弁を閉／開とすることにより、共通冷媒管
を通して、他の冷却専用蒸発器に流してそれぞれを冷却
運転し、この第１、第２開閉弁の選択的開閉操作によ
り、順次除霜運転する冷却装置を切替ていくことを特徴
とする冷却運転装置。A plurality of cooling devices each having a cooling evaporator and a defrosting evaporator are installed in a plurality of storages, and one end of each defrosting evaporator is supplied with a high-pressure refrigerant liquid discharged from a compressor. One end of each cooling-only evaporator is commonly connected to a suction pipe for low-pressure refrigerant gas returning to the compressor, and the refrigerant outlet end of each of the defrosting-only evaporators. Are connected in communication with one common refrigerant pipe, and the other ends of the cooling evaporators are connected in parallel to this refrigerant pipe via an expansion valve and a second on-off valve, respectively. When any one unit is to be defrosted, the corresponding first on-off valve is opened, the second on-off valve is closed, and the high-pressure refrigerant liquid flows through the evaporator dedicated to defrosting,
After passing the refrigerant liquid, the first and second on-off valves of the remaining cooling devices are further closed / opened to flow through the common refrigerant pipe to other cooling-only evaporators, thereby performing cooling operations. A cooling operation device, wherein a cooling device that sequentially performs a defrosting operation is switched by a selective opening and closing operation of a first and a second on-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3496988A JP2614479B2 (en) | 1988-02-19 | 1988-02-19 | Cooling operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3496988A JP2614479B2 (en) | 1988-02-19 | 1988-02-19 | Cooling operation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01210790A JPH01210790A (en) | 1989-08-24 |
| JP2614479B2 true JP2614479B2 (en) | 1997-05-28 |
Family
ID=12428971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3496988A Expired - Lifetime JP2614479B2 (en) | 1988-02-19 | 1988-02-19 | Cooling operation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2614479B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018066514A (en) * | 2016-10-19 | 2018-04-26 | パナソニックＩｐマネジメント株式会社 | Refrigeration device |
-
1988
- 1988-02-19 JP JP3496988A patent/JP2614479B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01210790A (en) | 1989-08-24 |
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