公开(公告)号：EP0278701A2

公开(公告)日：1988-08-17

申请号：EP88300999.5

申请日：1988-02-05

申请人： YORK INTERNATIONAL LTD

发明人： Fry, Anthony Robert ,  Kent, Derek ,  Johnson, Bernard W.

IPC分类号： F25D21/06

CPC分类号： F25D21/002 ,  F25B2700/111

摘要： An adaptive heat exchanger defrost system e.g. for a heat pump evaporator, incorporates a system controller which adapts the intervals between defrost cycles to prevailing conditions in order to improve overall efficiency. The time taken to complete a defrost cycle is measured and compared with the time taken for the preceding defrost cycle to determine whether it is appropriate to increase or decrease the interval between samplings of the operating parameter used to determine whether a defrost cycle is required.

摘要翻译： 适应性热交换器除霜系统 对于热泵蒸发器，包括系统控制器，其将除霜周期之间的间隔调整到主要条件，以便提高整体效率。 测量完成除霜循环所花费的时间，并将其与上一个除霜周期所花费的时间进行比较，以确定是否适当增加或减少用于确定是否需要除霜循环的操作参数的采样间隔。

公开(公告)号：EP0249296A2

公开(公告)日：1987-12-16

申请号：EP87201086.3

申请日：1987-06-05

申请人： Philips Patentverwaltung GmbH ,  Philips Electronics N.V.

发明人： Martens, Gerd

IPC分类号： G08B19/02 ,  B64D15/20

CPC分类号： G08B19/02 ,  B64D15/20 ,  F25B2700/111 ,  F25D21/02

摘要： Eine Anordnung zum Feststellen der Vereisung der Ober­fläche eines Gegenstandes, die automatisch bei Über­schreiten einer vorgegebenen Dicke der Vereisungsschicht ein Alarmsignal erzeugt, ist gekennzeichnet durch einen optischen Leiter, bei dem die Strahlung der Quelle auf mindestens eine im Bereich der zu prüfenden Oberfläche liegenden, von außerhalb des Gegenstandes zugänglichen Leiterfläche auftrifft, einen Detektor, der von dieser Leiterfläche kommende Strahlung empfängt und in ein elek­trisches Signal umsetzt, und eine Auswerteeinrichtung, die das Signal mit einem Schwellwert vergleicht und abhängig vom Vergleichsergebnis ein Alarmsignal erzeugt.

摘要翻译： 用于检测物体表面上的结冰的装置包括光导体，其中来自源的辐射线撞击导体的至少一个平面，该平面位于待测试表面的区域中，并且可从 以及接收来自该导体平面的辐射并将其转换为电信号的检测器。 评估装置比较阈值和根据比较结果产生报警信号的信号。

公开(公告)号：EP0117425B1

公开(公告)日：1987-03-25

申请号：EP84100705.7

申请日：1984-01-24

申请人： Ruhrgas Aktiengesellschaft

发明人： Korsmeier, Wilhelm ,  Klein, Klaus

IPC分类号： F25D21/06

CPC分类号： F25D21/02 ,  F25B2700/111

公开(公告)号：EP3339774A1

公开(公告)日：2018-06-27

申请号：EP16206198.0

申请日：2016-12-22

申请人： Vestel Elektronik Sanayi ve Ticaret A.S.

发明人： ÖZKÜCÜK, Serhat ,  YILMAZ, Samet

IPC分类号： F25D21/02

CPC分类号： F25D21/02 ,  F25B2700/111

摘要： The before mentioned invention refers to an ice detection unit (1),
at least comprising
a light source (6) for emitting visible light (60),
an optical means (62) for dividing said visible light (60) in multiple light beams (7.1-7.7),
multiple detection means (8.1-8.7) for detecting light of said light beams (7.1-7.7) and for outputting of signals representing detected light,
wherein refraction property changes of said optical means (62) are causing light path changes of the light paths of said multiple light beams (7.1-7.7), wherein refraction property changes are caused in dependency of the amount of ice on a surface of said optical means (62),
wherein said signal output at least differs between a situation without ice on said surface of said optical means (62) and a situation with ice on said surface of said optical means (62).

公开(公告)号：EP1020149A3

公开(公告)日：2000-11-02

申请号：EP00100725.1

申请日：2000-01-14

申请人： Isa SpA

发明人： Rossi, Romolo ,  Pellovini, Francesco

IPC分类号： A47F3/04 ,  F25D29/00 ,  F25D21/06

CPC分类号： A47F3/0404 ,  A47F3/0482 ,  F25B2700/02 ,  F25B2700/11 ,  F25B2700/111 ,  F25D21/002 ,  F25D29/00 ,  F25D2400/36 ,  F25D2700/14 ,  F25D2700/16

摘要： Method and device to control refrigeration conditions in refrigerated showcases, modules (10) or similar, said refrigerated modules comprising at least a front glass (11), a refrigerated compartment, a cooling circuit (17), antimisting devices (32) and a cooling assembly (40), it being provided, during functioning, to measure at least the values of temperature of the air (21) entering and leaving the evaporator unit (13), to compare them with pre-determined threshold values and to give permission to start a defrosting cycle to defrost the evaporator unit (13) only when the continuously measured values reach the threshold values.

公开(公告)号：EP0082144A4

公开(公告)日：1984-07-06

申请号：EP81902098

申请日：1981-06-26

申请人： ALSENZ RICHARD H

发明人： ALSENZ RICHARD H

IPC分类号： F25D21/00 ,  F25D21/02 ,  F25D21/06

CPC分类号： F25D21/006 ,  F25B2700/111

摘要： In one exemplar embodiment, an improved evaporating coil defrost control (28) for use in a refrigeration system is disclosed, and which includes a pair of thermostatically controlled switch contacts (42, 44) positioned adjacent the evaporator coil (14) and responsive to the temperature of the coil, the contacts being heated by a resistor or thermistor heater (46) to maintain the temperature of the contacts above a predetermined "low" temperature level. The refrigerator compressor (18) is operated through one of the normally closed switch contacts (42) when the switch (40) is maintained above the "low" temperature level. A defrost initiation means (48) de-energizes the heater (46) when defrost is necessary, permitting the thermostatically controlled switch contacts (42, 44) to cool below the "low" temperature level and closing the normally open switch contact (44) to actuate a defrost means (26) to defrost the evaporator coil (14). The defrost means (26) heats the evaporator coil (14) until the melting point of the frost or ice is reached to remove frost and ice, and in turn heats the switch contacts (42, 44) until a predetermined "high" temperature level is reached for changing the state of the switch (40) and re-energizing the compressor (18), cooling the evaporator coil (14), and de-energizing the defrost means (26). The resistor or thermistor heater (46) is re-energized to maintain the temperature of the thermostatically controlled switch contacts (42, 44) above the "low" temperature.

公开(公告)号：EP0082144A1

公开(公告)日：1983-06-29

申请号：EP81902098.0

申请日：1981-06-26

申请人： ALSENZ, Richard H.

发明人： ALSENZ, Richard H.

IPC分类号： F25D21

CPC分类号： F25D21/006 ,  F25B2700/111

摘要： Dans un mode exemplaire de réalisation, une commande améliorée de décongélation par serpentin d'évaporation (28) utilisée dans un système de réfrigération, comprend une paire de contacts de commutation commandés de manière thermostatique (42, 44) positionnés adjacents aux serpentins évaporateurs (14) et sensibles à la température du serpentin, les contacts étant chauffés par une résistance ou un radiateur à thermistor (46) pour maintenir la température des contacts au-dessus d'un niveau prédéterminé de "basse température". Le compresseur de réfrigération (18) fonctionne par l'intermédiaire d'un des contacts de commutation normalement fermé (42) lorsque le commutateur (40) est maintenu au-dessus du niveau de "basse" température. Un dispositif initiateur de la décongélation (48) met hors circuit le dispositif de chauffage (46) lorsque la décongélation est nécessaire, permettant aux contacts de commutation à commande thermostatique (42, 44) de refroidir jusqu'à un niveau inférieur au niveau de basse température, et fermant le contact de commutation normalement ouvert (44) pour actionner un moyen de décongélation (26) et décongeler le serpentin d'évaporation (14). Le moyen de décongélation (26) chauffe le serpentin d'évaporation (14) jusqu'à ce que le point de fusion du gel ou de la glace soit atteint pour enlever le gel et la glace, et ensuite chauffe le contact de commutation (42, 44) jusqu'à ce qu'un niveau prédéterminé de "haute" température soit atteint pour changer l'état du commutateur (40) et mettre en circuit le compresseur (18), refroidissant ainsi le serpentin d'évaporation (14) et mettant en circuit le moyen de décongélation (26). La résistance ou dispositif de chauffage à thermistor (46) est remis en circuit pour maintenir la température des contacts de commutation à commande thermostatique (42, 44) au-dessus de la "basse" température.

公开(公告)号：EP2673580A2

公开(公告)日：2013-12-18

申请号：EP12745318.1

申请日：2012-02-08

申请人： Control Products, Inc.

发明人： ROSENLUND, Richard ,  OLSON, Gary ,  BERGHOFF, Christian

IPC分类号： F25C1/00 ,  G01B17/00

CPC分类号： F25D21/02 ,  F25B2700/111

摘要： A system, apparatus, and method for determining when an amount of ice formed on an evaporator or evaporator grid has reached a predetermined size are illustrated. An acoustic transmitter an acoustic transmitter positioned proximate to the evaporator channels acoustic signals emanating from the evaporator or evaporator grid to an acoustic sensor, which generates an electronic signal indicative of the acoustic signal. A receiver module coupled to the acoustic sensor is configured to receive the electronic signal and determine that ice formed on the evaporator has reached a predetermined size based on the electronic signal.

公开(公告)号：EP2189740A3

公开(公告)日：2011-04-27

申请号：EP09167220.4

申请日：2009-08-05

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Han, Jeong Su ,  Lee, Sang Jun ,  Seo, Kook Jeong ,  Yoon, Ho ,  Kim, Jung Hyeon ,  Choi, Hyen Young ,  Ryu, O Do

IPC分类号： F25D21/02

CPC分类号： F25D21/02 ,  F25B2700/111

摘要： An oscillatory wave generating unit and an oscillatory wave sensing unit are installed at both ends of a refrigerant pipe of an evaporator of the cooling system, an amount of frost formed on the refrigerant pipe is determined by comparing a wave form of an oscillatory wave generated from one end of the refrigerant through the oscillatory wave generating unit and a wave form of the oscillatory wave sensed by the other one end of the refrigerant through the oscillatory wave sensing unit, and whether or not a defrosting operation is performed is determined by a result of the determination. The cooling system increases the accuracy in sensing the amount of the frost formed on the evaporator of a refrigerator, a Kimchi refrigerator, or an air conditioner, and respectively starts and ends the defrosting operation at proper points of time, thus enhancing a heat-exchanging performance and increasing energy efficiency.

公开(公告)号：EP2189740A2

公开(公告)日：2010-05-26

申请号：EP09167220.4

申请日：2009-08-05

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Han, Jeong Su ,  Lee, Sang Jun ,  Seo, Kook Jeong ,  Yoon, Ho ,  Kim, Jung Hyeon ,  Choi, Hyen Young ,  Ryu, O Do

IPC分类号： F25D21/02

CPC分类号： F25D21/02 ,  F25B2700/111

摘要： An oscillatory wave generating unit and an oscillatory wave sensing unit are installed at both ends of a refrigerant pipe of an evaporator of the cooling system, an amount of frost formed on the refrigerant pipe is determined by comparing a wave form of an oscillatory wave generated from one end of the refrigerant through the oscillatory wave generating unit and a wave form of the oscillatory wave sensed by the other one end of the refrigerant through the oscillatory wave sensing unit, and whether or not a defrosting operation is performed is determined by a result of the determination. The cooling system increases the accuracy in sensing the amount of the frost formed on the evaporator of a refrigerator, a Kimchi refrigerator, or an air conditioner, and respectively starts and ends the defrosting operation at proper points of time, thus enhancing a heat-exchanging performance and increasing energy efficiency.

摘要翻译： 的振荡波生成部和振动波感测单元安装在所述冷却系统的蒸发器的制冷剂管的两端，以通过比较从所产生的振动波的波形的霜形成在制冷剂管确定性开采的 通过振动波生成部的制冷剂和通过振动波感测单元的制冷剂中的另一个端部感测到的振动波的波形的一个端部，和除霜手术是否被执行的是确定性的通过的结果开采 的决心。 该冷却系统的准确性增加在感测形成于冰箱，泡菜冰箱，或在空气调节机中，在蒸发器上的霜量，并分别开始和结束除霜运行时的时间适当点，从而提高热交换 性能和提高能源效率。