JPH04139369A - Freezer device for land transportation - Google Patents
Freezer device for land transportationInfo
- Publication number
- JPH04139369A JPH04139369A JP26044590A JP26044590A JPH04139369A JP H04139369 A JPH04139369 A JP H04139369A JP 26044590 A JP26044590 A JP 26044590A JP 26044590 A JP26044590 A JP 26044590A JP H04139369 A JPH04139369 A JP H04139369A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- freezer
- dew point
- heating operation
- heating
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000005057 refrigeration Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はサブエンジンによって駆動される陸上輸送用冷
凍ユニット等の冷凍装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a refrigeration system such as a refrigeration unit for land transportation driven by a sub-engine.
［従来の技術］
従来の陸上輸送用冷凍装置は車両に搭載されたエンジン
によって駆動される冷凍装置の冷却運転又は加熱運転を
繰返すことによって被冷凍物の種類に応して冷凍庫内を
所定の温度に制御している。[Prior Art] Conventional refrigeration systems for land transportation keep the inside of the freezer at a predetermined temperature depending on the type of object to be frozen by repeating cooling or heating operations of the refrigeration system driven by an engine mounted on a vehicle. is controlled.
ところで大都市間を往復輸送する場合には被冷凍物は常
に同じものとは限らず例えば往路はマイナス２０°Ｃの
被冷凍物、復路は常温のいわゆるドライ物を輸送するこ
とがあり、かかるとき被冷凍物の荷降し及び荷積作業の
際にドッグシェル（外気から遮断された冷蔵倉庫に車両
を横付けて荷降し等を行うためのもの）が使用されない
場合には冷凍庫内が外気に曝されて庫内が結露されるこ
ととなる。By the way, when transporting back and forth between large cities, the items to be frozen are not always the same; for example, items to be frozen at -20°C may be transported on the outward trip, and so-called dry items at room temperature may be transported on the return trip. When unloading and loading frozen items, if a dog shell (a device for unloading by pulling a vehicle alongside a refrigerated warehouse isolated from the outside air) is not used, the inside of the freezer will be exposed to the outside air. This will cause condensation inside the refrigerator.
このため結露水を除去すべく冷凍庫内を全開状態にして
風乾させる必要がありドライ物を荷積みするまでに長時
間を要するという不具合があった。For this reason, in order to remove the dew condensation water, the inside of the freezer must be fully opened and air-dried, resulting in a problem that it takes a long time to load dry items.
本発明は上記事情に鑑み、冷凍庫を開放した際の結露水
量の低減もしくは結露を防止することによってドライ物
の荷積みまでの時間を短縮化させた陸上輸送用冷凍装置
を提供することを目的とする。In view of the above circumstances, an object of the present invention is to provide a refrigeration system for land transportation that shortens the time required to load dry goods by reducing the amount of condensed water or preventing condensation when the freezer is opened. do.
本発明は上記課題の解決手段として次の（１）、 （２
）に記載の陸上輸送用冷凍装置を提供しようとするもの
である。The present invention provides the following (1) and (2) as a means of solving the above problems.
) is intended to provide a refrigeration system for land transportation as described in
（１）車両に積載され、冷凍庫の外気の露点温度を検出
する露点検出手段と、上記冷凍庫内の温度を検知する内
温検知手段と、冷凍装置の加熱運転を開始させる加熱指
定手段とを備え、該加熱指定手段に入力して開始された
冷凍装置の加熱運転を、上記内温検知手段で検知された
庫内温度が上記露点検出手段で検出された露点温度以上
になったとき停止させる制御装置とを具備してなること
を特徴とする陸上輸送用冷凍装置。(1) The vehicle is loaded with a dew point detection means for detecting the dew point temperature of the outside air of the freezer, an internal temperature detection means for detecting the temperature inside the freezer, and a heating specifying means for starting the heating operation of the refrigeration equipment. , a control for stopping the heating operation of the refrigeration equipment started by inputting the input to the heating specifying means when the internal temperature detected by the internal temperature detecting means becomes equal to or higher than the dew point temperature detected by the dew point detecting means; A refrigeration device for land transportation, comprising:
（２）上記（］）に記載の陸上輸送用冷凍装置において
、内温検知手段に代えて冷凍庫の内壁温度を検知する壁
温検知手段を具備してなることを特徴とする陸上輸送用
冷凍装置。(2) The refrigeration system for land transport described in () above, characterized in that the refrigeration system for land transport is equipped with a wall temperature detection means for detecting the inner wall temperature of the freezer instead of the inner temperature detection means. .
［作用］
本発明は上記のように構成されるので次の（１）（２）
の作用を存する。[Operation] Since the present invention is configured as described above, the following (1) and (2)
It has the effect of
（１）上記（１）の構成にあっては加熱指定手段に入力
することによって冷凍装置の加熱運転が開始され、これ
により冷凍庫内及びその内壁の温度が上昇する。その際
、内温検知手段が検知した温度が、露点検出手段の検出
した外気の露点温度より低くければ加熱運転は継続され
、高ければ加熱運転は停止される。従って冷凍庫内は外
気が侵入しても結露しない温度に短時間で達すると同時
に、不必要な加熱運転の継続が生じない。(1) In the configuration of (1) above, heating operation of the refrigeration apparatus is started by inputting to the heating specifying means, thereby increasing the temperature inside the freezer and its inner wall. At this time, if the temperature detected by the internal temperature detection means is lower than the dew point temperature of the outside air detected by the dew point detection means, the heating operation is continued, and if it is higher, the heating operation is stopped. Therefore, the inside of the freezer quickly reaches a temperature at which no condensation occurs even when outside air enters, and at the same time, unnecessary continuation of heating operation does not occur.
（２）上記（２）の構成にあっては（１）の構成の内温
検知手段に代えて冷凍庫の内壁温度を検知する壁温検知
手段を設けるので、上記（１）の作用に加え冷凍庫内に
侵入した外気が最も結露を生しやすい内壁の温度が外気
の露点温度以上に上昇することが保証され、−層確実に
結露の原因が排除される。(2) In the structure of (2) above, a wall temperature detection means for detecting the inner wall temperature of the freezer is provided in place of the inner temperature detection means of the structure (1), so in addition to the effect of (1) above, the freezer It is guaranteed that the temperature of the inner wall, where the outside air entering the interior is most likely to cause dew condensation, rises above the dew point temperature of the outside air, and the cause of dew condensation is reliably eliminated.
〔実施例］ 本発明の第１実施例を第１図により説明する。〔Example] A first embodiment of the present invention will be described with reference to FIG.
第１図は本実施例の陸上輸送用冷凍装置の系統図で、１
はエンジン、２はエンジン１により駆動されるコンプレ
ッサ、３は三方弁でソレノイド４によって駆動されるこ
とにより冷却運転と加熱運転とを切換える。５はコンデ
ンサ、６はコンデンサ５に外気を送風するファンでモー
タ７によって駆動される。８ば膨張弁、９は冷凍庫ｌＯ
内に配設されたエバポレータ、１１はエバポレータ９に
冷凍庫１０内空気を送風するファンでモータ１２によっ
て駆動される。１３は逆止弁、１４は冷凍庫１０内の温
度を検知する内温センサ、１５は制御装置、１６はエン
ジンｌによって駆動される発電機、１７は発電機１６に
よって充電されるバッテリでエンジン１の始動用、制御
装置１５の作動用等の１源となる。冷却運転時、冷媒は
実線矢印で示すようにコンプレッサ２、三方弁３、コン
デンサ５、膨張弁８、エバポレータ９、逆止弁１３をこ
の順に経てコンプレッサ２に戻る。一方加熱運転時、冷
媒は２点鎖線で示すようにコンプレッサ２、三方弁３、
エバポレータ９、逆止弁１３をこの順に経てコンプレッ
サ２に戻る。内温センサ１４の出力は制御装置１５に入
力され、この制御装置１５からの指令によってエンジン
１、ソレノイド４、モータ７、モータ１２が制御される
。Figure 1 is a system diagram of the land transportation refrigeration system of this embodiment.
2 is an engine, 2 is a compressor driven by the engine 1, and 3 is a three-way valve that is driven by a solenoid 4 to switch between cooling operation and heating operation. 5 is a capacitor, and 6 is a fan that blows outside air to the capacitor 5 and is driven by a motor 7. 8 is an expansion valve, 9 is a freezer lO
An evaporator 11 disposed inside is a fan that blows air inside the freezer 10 to the evaporator 9, and is driven by a motor 12. 13 is a check valve; 14 is an internal temperature sensor that detects the temperature inside the freezer 10; 15 is a control device; 16 is a generator driven by the engine 1; 17 is a battery charged by the generator 16; It serves as a source for starting, operating the control device 15, etc. During the cooling operation, the refrigerant returns to the compressor 2 through the compressor 2, the three-way valve 3, the condenser 5, the expansion valve 8, the evaporator 9, and the check valve 13 in this order as shown by the solid arrow. On the other hand, during heating operation, the refrigerant flows through the compressor 2, the three-way valve 3, and
It returns to the compressor 2 via the evaporator 9 and check valve 13 in this order. The output of the internal temperature sensor 14 is input to a control device 15, and the engine 1, solenoid 4, motor 7, and motor 12 are controlled by commands from the control device 15.
上記制御装置１５にはサーモスタット１８、サーモスタ
ット１９が内蔵され、サーモスタット１８は庫内温度Ｔ
がその設定温度Ｔ、に到達したときＯＮとなり上限温度
Ｔ１に到達したときＯＦＦとなる。またサーモスタット
１９は庫内温度Ｔがその設定温度Ｔ５に到達したときＯ
ＦＦとなり下限温度Ｔ２に到達したときＯＮとなる。The control device 15 has a built-in thermostat 18 and a thermostat 19, and the thermostat 18 controls the internal temperature T.
When the temperature reaches the set temperature T, it turns on, and when it reaches the upper limit temperature T1, it turns off. In addition, the thermostat 19 is turned on when the internal temperature T reaches the set temperature T5.
It becomes FF and turns ON when the lower limit temperature T2 is reached.
而して負荷が冷却負荷であるときは吸熱運転が行われ、
負荷が加熱負荷であるときは放熱運転が行われる。吸熱
運転時、庫内温度Ｔがサーモスタット１８の上限温度Ｔ
１に達すると出力手段２０に入力され、この出力手段２
０からの指令により冷凍装置が冷却運転を開始する。こ
の冷却運転によって庫内温度Ｔが低下し設定温度Ｔ、に
到達したとき内温センサ１４を経てサーモスタット１８
の信号が出力手段２０に入力され、この出力手段２０か
らの指令により冷却運転から加熱運転に切換えられる。Therefore, when the load is a cooling load, endothermic operation is performed,
When the load is a heating load, heat radiation operation is performed. During endothermic operation, the internal temperature T is the upper limit temperature T of the thermostat 18.
When it reaches 1, it is input to the output means 20, and this output means 2
The refrigeration system starts cooling operation according to the command from 0. Due to this cooling operation, the internal temperature T decreases, and when it reaches the set temperature T, the internal temperature sensor 14 passes through the thermostat 18.
The signal is input to the output means 20, and the cooling operation is switched to the heating operation according to the command from the output means 20.
このようにして冷凍装置は冷却運転と加熱運転を交互に
繰返しながら（以下交互運転という）庫内温度Ｔを設定
温度Ｔ５の近傍に維持している。In this way, the refrigeration system maintains the internal temperature T in the vicinity of the set temperature T5 while alternately repeating the cooling operation and the heating operation (hereinafter referred to as alternate operation).
また負荷が加熱負荷のときは放熱運転が行われ、庫内温
度Ｔがサーモスタン目９の下限温度Ｔ、に到達したとき
加熱運転が指令され、設定温度Ｔ８に到達したとき加熱
運転から冷却運転に切換えられて上述した吸熱運転時の
場合と同様に交互運転が行なわれ庫内温度Ｔを設定温度
Ｔ、の近傍に維持している。When the load is a heating load, heat radiation operation is performed, and when the internal temperature T reaches the lower limit temperature T of thermostat 9, heating operation is commanded, and when the set temperature T8 is reached, heating operation is changed to cooling operation. As in the case of the above-mentioned endothermic operation, alternate operation is performed to maintain the internal temperature T near the set temperature T.
次に図中の２１は冷凍装置の加熱運転を開始させる加熱
指定手段で、この加熱指定手段２１に入力するとこの信
号が出力手段２０へ出力され、出力手段２０からの指令
により冷凍装置が庫内温度Ｔを設定温度Ｔ、に維持する
交互運転から加熱運転に切換えられたり、又は冷凍装置
が運転停止下にあるとき加熱運転を開始し、これによっ
て庫内温度Ｔが上昇される。Next, reference numeral 21 in the figure is a heating designation means for starting the heating operation of the refrigeration system. When inputted to this heating designation means 21, this signal is outputted to the output means 20, and the command from the output means 20 causes the refrigeration system to enter the refrigerator. The heating operation is started when the alternating operation that maintains the temperature T at the set temperature T is switched to the heating operation, or when the refrigeration system is stopped, thereby raising the temperature T inside the refrigerator.
また２２は冷凍庫１０の外気の温度を検知する外温セン
サ、２３は外気の相対湿度を検知する外温センサで、こ
れら外温センサ２２及び外温センサ２３の信号は露点検
出手段２４に入力され、ここで記憶手段２５から入力さ
れたデータに基づいて外気の露点温度が算定検出される
。上記記憶手段２５には温度及び相対湿度と露点温度と
の関係を示す湿り空気のデータが記憶されている。Further, 22 is an external temperature sensor that detects the temperature of the outside air of the freezer 10, and 23 is an external temperature sensor that detects the relative humidity of the outside air. Signals from these external temperature sensors 22 and 23 are input to the dew point detection means 24. Here, the dew point temperature of the outside air is calculated and detected based on the data input from the storage means 25. The storage means 25 stores humid air data indicating the relationship between temperature, relative humidity, and dew point temperature.
露点検出手段２４で検出された露点温度は比較手段２６
に入力され、ここで内温センサ１４がら入力された庫内
温度Ｔと比較される。この庫内温度Ｔが露点温度以上に
なったとき出力手段２ｏに入力され、出力手段２０から
の指令により冷凍装置の加熱運転を停止する。The dew point temperature detected by the dew point detection means 24 is determined by the comparison means 26.
, and is compared with the internal temperature T input from the internal temperature sensor 14. When this internal temperature T becomes equal to or higher than the dew point temperature, it is input to the output means 2o, and the heating operation of the refrigeration system is stopped by a command from the output means 20.
而して、冷凍装置が運転されて庫内温度Ｔが外気温度よ
りもかなり低い場合には、被冷凍物の荷降し作業の前に
加熱指定手段２１に入力することによって強制的に加熱
運転が開始され、庫内温度Ｔが外気の露点温度以上にな
るまで加熱運転が継続される。この結果、冷凍庫１ｏの
内壁温度も庫内温度Ｔの上昇に伴って上昇されるため被
冷凍物の荷降しの際に冷凍庫１０が開放されて外気に曝
された場合にも冷凍庫１０の内壁において結露される装
置は低減されるのでドライ物を荷積みするまでの時間は
短縮化される。Therefore, when the refrigeration equipment is operated and the internal temperature T is considerably lower than the outside temperature, the heating operation is forced by inputting it to the heating specifying means 21 before unloading the frozen items. is started, and the heating operation is continued until the internal temperature T becomes equal to or higher than the dew point temperature of the outside air. As a result, the temperature of the inner wall of the freezer 1o also rises as the internal temperature T rises, so even if the freezer 10 is opened and exposed to the outside air when unloading items to be frozen, the inner wall of the freezer 10 Since the amount of equipment subject to dew condensation is reduced, the time required to load dry goods is shortened.
次に本発明の第２実施例を第２図により説明する。なお
、第１実施例と同様の構成部材には同符号を付し、説明
を省略する。Next, a second embodiment of the present invention will be described with reference to FIG. Note that the same reference numerals are given to the same constituent members as in the first embodiment, and the explanation thereof will be omitted.
第２図は第２実施例の陸上輸送用冷凍装置の系統図で、
図において、３０は冷凍庫１０の内壁の温度を検知する
壁温センサで、この壁温センサ３０の信号が制御装置３
１に入力されて加熱運転が継続され、又は停止されるよ
うになっている。FIG. 2 is a system diagram of a refrigeration system for land transportation according to the second embodiment.
In the figure, 30 is a wall temperature sensor that detects the temperature of the inner wall of the freezer 10, and the signal from this wall temperature sensor 30 is transmitted to the control device 3.
1 is input to continue or stop the heating operation.
即ち、加熱指定手段２１に入力するとこの信号が制御装
置３１の出力手段３２へ出力され、出力手段３２からの
指令により冷凍装置が加熱運転を開始し、これによって
冷凍庫１０の内部温度及び内壁温度が上昇される。この
内壁温度は壁温センサ３０の信号として比較手段３３に
入力され、ここで露点検出手段２４で検出された外気の
露点温度と比較される。That is, when input to the heating designation means 21, this signal is outputted to the output means 32 of the control device 31, and the refrigeration system starts heating operation according to the command from the output means 32, thereby increasing the internal temperature and inner wall temperature of the freezer 10. be raised. This inner wall temperature is input as a signal from the wall temperature sensor 30 to the comparing means 33, where it is compared with the dew point temperature of the outside air detected by the dew point detecting means 24.
内壁温度が露点温度に到達するまでは加熱運転は継続さ
れ、一方向壁温度が露点温度以上になったときは出力手
段３２に入力され、出力手段３２からの指令により冷凍
装置は加熱運転を停止する。従って被冷凍物の荷降しの
際に冷凍庫１０内が外気に曝されてもその内壁における
結露は防出される。The heating operation continues until the inner wall temperature reaches the dew point temperature, and when the one-way wall temperature exceeds the dew point temperature, the input is input to the output means 32, and the refrigeration equipment stops the heating operation according to the command from the output means 32. do. Therefore, even if the inside of the freezer 10 is exposed to the outside air during unloading of objects to be frozen, dew condensation on the inner walls is prevented.
他の構成、作用は第１図に示す第１実施例と同様である
。Other configurations and operations are similar to those of the first embodiment shown in FIG.
以上の通り、第１、第２実施例によれば冷凍庫内の温度
を内温センサよって、或は冷凍庫の内壁の温度を壁温セ
ンサによって検出し、露点検出手段によって検出した外
気の露点温度と比較し、冷凍庫内温度、又は冷凍庫内壁
の温度が外気の露点温度より高まっている場合は出力手
段を通して加熱運転を停止し、外気の露点温度より低い
場合は加熱指定手段を通じて加熱運転を行なうので、荷
降し作業の際、冷凍庫内に入った外気が結露を生しるこ
とがな（、生したとしても微量で、次なる荷積み作業迄
の時間が著しく短縮されるという利点がある。As described above, according to the first and second embodiments, the temperature inside the freezer is detected by the internal temperature sensor, or the temperature of the inner wall of the freezer is detected by the wall temperature sensor, and the dew point temperature of the outside air detected by the dew point detection means is determined. In comparison, if the temperature inside the freezer or the temperature of the inner wall of the freezer is higher than the dew point temperature of the outside air, the heating operation is stopped through the output means, and if it is lower than the dew point temperature of the outside air, the heating operation is performed through the heating specifying means. During the unloading process, the outside air that enters the freezer does not form condensation (if any condensation does occur, it is only a small amount), and the advantage is that the time until the next loading process is significantly shortened.
本発明は上記のように構成されるので次の効果を存する
。Since the present invention is configured as described above, it has the following effects.
即ち、本発明では被冷凍物の荷陳しの前に冷凍装置の加
熱運転を開始させることによって、冷凍庫内の温度もし
くは内壁温度を上昇させ、外気の露点温度以上にせしめ
ることができるため、被冷凍物の荷降しに際して、冷凍
庫の内壁での結露が抑制もしくは防止されるので、ドラ
イ物の荷積みまでの時間が短縮化される。That is, in the present invention, by starting the heating operation of the refrigeration equipment before loading and displaying the frozen items, the temperature inside the freezer or the inner wall temperature can be raised to exceed the dew point temperature of the outside air. Since dew condensation on the inner wall of the freezer is suppressed or prevented when unloading frozen items, the time required to load dry items is shortened.
第１図は本発明の第１実施例に係る陸上輸送用冷凍装置
の系統図、第２図は本発明の第２実施例に係る陸上輸送
用冷凍装置の系統図である。
１０・・・冷凍庫、１４・・・内温センサ１５・・・制
御装置、２１・・・加熱指定手段。
２２・・・外温センサ、２３・・・外温センサ２４・・
・露点検出手段、２５・・・記憶手段。
３０・・・壁温センサ、３１・・・制御装置。FIG. 1 is a system diagram of a refrigeration system for land transport according to a first embodiment of the present invention, and FIG. 2 is a system diagram of a refrigeration system for land transport according to a second embodiment of the invention. DESCRIPTION OF SYMBOLS 10... Freezer, 14... Internal temperature sensor 15... Control device, 21... Heating designation means. 22... External temperature sensor, 23... External temperature sensor 24...
- Dew point detection means, 25... storage means. 30... Wall temperature sensor, 31... Control device.
Claims (2)
する露点検出手段と、上記冷凍庫内の温度を検知する内
温検知手段と、冷凍装置の加熱運転を開始させる加熱指
定手段とを備え、該加熱指定手段に入力して開始された
冷凍装置の加熱運転を、上記内温検知手段で検知された
庫内温度が上記露点検出手段で検出された露点温度以上
になったとき停止させる制御装置とを具備してなること
を特徴とする陸上輸送用冷凍装置。(1) The vehicle is loaded with a dew point detection means for detecting the dew point temperature of the outside air of the freezer, an internal temperature detection means for detecting the temperature inside the freezer, and a heating specifying means for starting the heating operation of the refrigeration equipment. , a control for stopping the heating operation of the refrigeration equipment started by inputting the input to the heating specifying means when the internal temperature detected by the internal temperature detecting means becomes equal to or higher than the dew point temperature detected by the dew point detecting means; A refrigeration device for land transportation, comprising:
て、内温検知手段に代えて冷凍庫の内壁温度を検出する
壁温検知手段を具備してなることを特徴とする陸上輸送
用冷凍装置。(2) The refrigeration system for land transportation according to claim (1), characterized in that the refrigeration system for land transportation is provided with wall temperature detection means for detecting the temperature of the inner wall of the freezer in place of the inner temperature detection means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260445A JP2706365B2 (en) | 1990-10-01 | 1990-10-01 | Land transportation refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260445A JP2706365B2 (en) | 1990-10-01 | 1990-10-01 | Land transportation refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04139369A true JPH04139369A (en) | 1992-05-13 |
| JP2706365B2 JP2706365B2 (en) | 1998-01-28 |
Family
ID=17348038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2260445A Expired - Fee Related JP2706365B2 (en) | 1990-10-01 | 1990-10-01 | Land transportation refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2706365B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021038909A (en) * | 2019-09-03 | 2021-03-11 | 東プレ株式会社 | Refrigeration apparatus and method of operating refrigeration apparatus |
| JP2021089118A (en) * | 2019-12-06 | 2021-06-10 | 東プレ株式会社 | Freezer and operation method for the same |
| CN116841336A (en) * | 2023-07-03 | 2023-10-03 | 江苏拓米洛高端装备股份有限公司 | Control method, device and system of test box and test box |
-
1990
- 1990-10-01 JP JP2260445A patent/JP2706365B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021038909A (en) * | 2019-09-03 | 2021-03-11 | 東プレ株式会社 | Refrigeration apparatus and method of operating refrigeration apparatus |
| JP2021089118A (en) * | 2019-12-06 | 2021-06-10 | 東プレ株式会社 | Freezer and operation method for the same |
| CN116841336A (en) * | 2023-07-03 | 2023-10-03 | 江苏拓米洛高端装备股份有限公司 | Control method, device and system of test box and test box |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2706365B2 (en) | 1998-01-28 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |