LIGHT BASED ICE DETECTION UNIT, REFRIGERATOR WITH ICE DETECTION UNIT AND METHOD FOR DEFROSTING OF A REFRIGERATOR

    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

    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).

    OPTIMISATION DU DÉGIVRAGE D'UN ÉCHANGEUR DE CHALEUR DE CAMIONS FRIGORIFIQUES
    3.
    发明公开
    OPTIMISATION DU DÉGIVRAGE D'UN ÉCHANGEUR DE CHALEUR DE CAMIONS FRIGORIFIQUES 审中-公开
    制冷式卡车换热器的优化

    公开(公告)号:EP3190362A1

    公开(公告)日:2017-07-12

    申请号:EP17150233.9

    申请日:2017-01-04

    摘要: Un procédé de gestion du fonctionnement d'un camion de transport frigorifique de produits thermosensibles, du type à injection indirecte, où le camion est muni :
    - d'au moins une chambre de stockage des produits,
    - d'une réserve d'un fluide cryogénique tel l'azote liquide,
    - d'un système d'échangeur thermique (1) dans lequel circule le fluide cryogénique, système d'échangeur comprenant au moins un échangeur thermique interne à ladite au moins une chambre ,
    - ainsi que d'un système de circulation d'air (2), par exemple de type ventilateurs, apte à mettre en contact l'air interne à la chambre avec les parois froides du ou des échangeurs interne(s) à ladite au moins une chambre ;
    se caractérisant en ce que l'on déclenche une opération de dégivrage dudit échangeur lorsque deux écarts de température caractérisant l'échangeur (son pincement et un indicateur de suivi de la température de l'air soufflé) sont supérieurs à une consigne donnée pendant un temps cumulé t1.

    摘要翻译: 一种用于管理间接喷射类型的热敏产品的冷藏运输卡车的操作的方法,其中所述卡车设置有:至少一个产品储存室,流体储存器 低温液氮,其中循环低温流体的热交换器系统(1),交换器系统包括在所述至少一个腔室内部的至少一个热交换器,以及 例如风扇类型的空气循环系统(2),其能够使室内的空气与所述至少一个室内的交换器内部的冷壁接触; 其特征在于,当表征交换器的两个温差(其压区和空气温度的监测指示器正在吹制)在一段时间内大于给定指令时,触发所述交换器的除霜操作 累计t1。

    PROCÉDÉ ET SYSTÈME DE DÉTECTION DE GIVRE
    4.
    发明公开
    PROCÉDÉ ET SYSTÈME DE DÉTECTION DE GIVRE 审中-公开
    PROCÉDÉETSYSTÈMEDEDÉTECTIONDE GIVRE

    公开(公告)号:EP3172512A1

    公开(公告)日:2017-05-31

    申请号:EP15742379.9

    申请日:2015-07-07

    发明人: MEMPONTEIL, Alain

    IPC分类号: F25D21/02 B64D15/20

    CPC分类号: F25D21/02 B64D15/20

    摘要: A system for detecting frost on a surface (18) comprises a resistive element (12) in contact with the surface (18), a current generator (22) connected to the resistive element (12), a sensor (28) measuring the temperature of the resistive element (12), and a calculation unit (38) capable of determining the presence of ice on the surface (18) depending on the measurement delivered by the sensor. The generator (22) injects an electrical current into the element (12) in order to bring same to a temperature higher than the melting temperature of the ice. The calculation unit (38) determines a difference between the temperature measured during the heating of the element and an exponential growth function, and detects frost on the surface (18) if the difference is greater than a predefined detection threshold.

    摘要翻译: 一种用于检测表面(18)上的霜的系统包括与表面(18)接触的电阻元件(12),连接到电阻元件(12)的电流发生器(22),传感器(28) 以及能够根据传感器传递的测量结果确定表面(18)上存在冰的计算单元(38)。 发生器(22)将电流注入元件(12)以使其达到高于冰的融化温度的温度。 计算单元(38)确定在加热元件期间测量的温度与指数增长函数之间的差值,并且如果差值大于预定义的检测阈值,则检测表面(18)上的霜。

    Refrigerator
    6.
    发明公开
    Refrigerator 审中-公开
    冰箱

    公开(公告)号:EP2574868A3

    公开(公告)日:2016-11-16

    申请号:EP12185838.5

    申请日:2012-09-25

    IPC分类号: F25D21/02 F25D21/08 F25D21/00

    摘要: Provided is a refrigerator, which includes a main body, a door, an evaporator, a defrosting heater, a defrosting sensor, and a control part. The main body includes a food storage space and an evaporation compartment. The door selectively closes the food storage space. The evaporator is disposed in the evaporation compartment. The defrosting heater is disposed at a side of the evaporator to remove frost from an outer surface of the evaporation compartment or the evaporator. The defrosting sensor is disposed at a side of the evaporation compartment or the evaporator to sense a frost formation amount. The control part receives a sensed value transmitted from the defrosting sensor, and controls an operation of the defrosting heater according to the sensed value. A sensing period of the defrosting sensor is varied according to a frost formation amount sensed by the defrosting sensor.

    摘要翻译: 本发明提供一种冰箱,其包括主体,门,蒸发器,除霜加热器,除霜传感器以及控制部。 主体包括食物储存空间和蒸发室。 门有选择地关闭食物储存空间。 蒸发器设置在蒸发室中。 除霜加热器设置在蒸发器的一侧,以从蒸发室或蒸发器的外表面去除霜。 除霜传感器设置在蒸发室或蒸发器的一侧以感测结霜量。 控制部分接收从除霜传感器传送的感测值,并根据感测值控制除霜加热器的操作。 除霜传感器的感测周期根据除霜传感器感测到的结霜量而变化。

    METHOD AND APPARATUS FOR INITIATING COIL DEFROST IN A REFRIGERATION SYSTEM EVAPORATOR
    7.
    发明公开
    METHOD AND APPARATUS FOR INITIATING COIL DEFROST IN A REFRIGERATION SYSTEM EVAPORATOR 审中-公开
    方法和装置SPULENENTFROSTEN在制冷系统的蒸发器简介

    公开(公告)号:EP2976584A2

    公开(公告)日:2016-01-27

    申请号:EP14770503.2

    申请日:2014-03-21

    申请人: Evapco, Inc.

    发明人: DEROSIER, Greg

    IPC分类号: F25D21/02

    摘要: A system for controlling the defrost cycle of an evaporator comprising a sensor in the coil of an evaporator or downstream of the coil, the sensor configured to determine changes in the liquid mass ratio of the refrigerant in the evaporator. The difference in liquid mass ratio relating to frost buildup on the outside of said evaporator. When the difference in liquid mass ratio reaches a predetermined amount, corresponding to an unsatisfactory frost buildup, a defrost cycle is initiated. When the liquid mass ratio returns to a value that corresponds to a defrosted evaporator, the defrost cycle is discontinued.

    BEVERAGE DISPENSE SYSTEMS
    9.
    发明公开
    BEVERAGE DISPENSE SYSTEMS 审中-公开
    饮料系统问题,

    公开(公告)号:EP2872838A1

    公开(公告)日:2015-05-20

    申请号:EP13748360.8

    申请日:2013-07-12

    IPC分类号: F25D31/00 F25D21/02 B67D1/08

    摘要: A cooler for a beverage dispense system includes a reservoir (4) of coolant 6 for forming an ice bank (7) on an evaporator 8 of a refrigeration system. The size of the ice bank (7) is controlled by a controller (14) responsive to an array of sensors (16a, 16b, 16c, 16d, 16e) for switching the refrigeration system on and off. The sensors 16a, 16b, 16c, 16d, 16e) are arranged at different distances from the evaporator and the controller (14) can respond to different combinations of the sensors to vary the size of the ice bank (7).