ES2383608T3 - Cooling device - Google Patents

Cooling device Download PDF

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Publication number
ES2383608T3
ES2383608T3 ES06710984T ES06710984T ES2383608T3 ES 2383608 T3 ES2383608 T3 ES 2383608T3 ES 06710984 T ES06710984 T ES 06710984T ES 06710984 T ES06710984 T ES 06710984T ES 2383608 T3 ES2383608 T3 ES 2383608T3
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Spain
Prior art keywords
air channel
compressor
evaporator
frost
ton
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ES06710984T
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Spanish (es)
Inventor
Turgay Ercan
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Arcelik AS
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Arcelik AS
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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Abstract

The present invention relates to a cooling device (1) comprising an air channel (6) which is prevented from being blocked by frosting.

Description

Dispositivo de refrigeración Cooling device

La presente invención se refiere a un dispositivo de refrigeración que comprende un canal de aire en el cual se evita que se bloquee debido a la formación de escarcha. The present invention relates to a cooling device comprising an air channel in which it is prevented from being blocked due to the formation of frost.

En el estado de la técnica existen dispositivos de refrigeración que comprenden dos compartimientos, siendo uno de ellos uno para alimentos frescos y el otro un congelador. En este tipo de dispositivos de refrigeración, parte del aire enfriado que pasa sobre el evaporador con la ayuda de un ventilador circula en el compartimiento de congelación, y el resto al compartimiento de alimentos frescos. El aire, después de completar su circulación en el compartimiento de alimentos frescos, pasa a través de un canal de aire y llega de nuevo al compartimiento de congelación. In the state of the art there are refrigeration devices comprising two compartments, one of them being one for fresh food and the other a freezer. In this type of cooling device, part of the cooled air that passes over the evaporator with the help of a fan circulates in the freezing compartment, and the rest in the fresh food compartment. The air, after completing its circulation in the fresh food compartment, passes through an air channel and reaches the freezing compartment again.

En temperaturas ambiente especialmente bajas, cuando el ventilador se detiene, el aire frío en la cámara del evaporador fluye hacia el canal de aire, y disminuye la temperatura aquí por debajo del punto de congelación del agua. Cuando el ventilador comienza a funcionar de nuevo, el aire relativamente húmedo y caliente en el compartimiento de alimentos frescos comienza a dirigirse hacia el evaporador a través del canal de aire. Sin embargo, como el aire caliente pasa a través del canal que se vuelve frío durante el período de no funcionamiento del evaporador, la humedad del aire se condensa y, en consecuencia, se congela sobre las superficies frías, y después de un período de tiempo, aumenta la cantidad de escarcha acumulada en el canal de aire. Esto a su vez se traduce en una reducción de la cantidad de aire que está siendo llevado desde el compartimiento de alimentos frescos a la cámara del evaporador, y así un refrigeración insuficiente del compartimiento de alimentos frescos. In especially low ambient temperatures, when the fan stops, the cold air in the evaporator chamber flows into the air channel, and the temperature decreases here below the freezing point of the water. When the fan begins to function again, the relatively hot and humid air in the fresh food compartment begins to move towards the evaporator through the air channel. However, as the hot air passes through the channel that becomes cold during the period of non-operation of the evaporator, the humidity of the air condenses and, consequently, freezes on the cold surfaces, and after a period of time , increases the amount of frost accumulated in the air channel. This in turn translates into a reduction in the amount of air that is being carried from the fresh food compartment to the evaporator chamber, and thus insufficient cooling of the fresh food compartment.

En la patentes US nº US3826103, y US5255536, y EP644385, se divulgan dispositivos de refrigeración que comprenden calentadores en el canal de aire. In US Pat. Nos. US3826103, and US5255536, and EP644385, cooling devices comprising heaters in the air channel are disclosed.

Un dispositivo de refrigeración de acuerdo con el preámbulo de la reivindicación 1 se conoce a partir del documento US-A-4 122 687. Un dispositivo de refrigeración similar se conoce a partir del documento JP-A-02 130 381. A cooling device according to the preamble of claim 1 is known from US-A-4 122 687. A similar cooling device is known from JP-A-02 130 381.

El objetivo de la presente invención es diseñar un dispositivo de refrigeración en el que se elimine el problema del escarchado en el canal de aire. The objective of the present invention is to design a cooling device in which the problem of frosting in the air channel is eliminated.

El dispositivo de refrigeración de la presente invención comprende las características de la reivindicación 1. The cooling device of the present invention comprises the features of claim 1.

El dispositivo de refrigeración diseñado para cumplir el objetivo de la presente invención se ilustra en los dibujos adjuntos, en los que: The cooling device designed to fulfill the objective of the present invention is illustrated in the accompanying drawings, in which:

La figura 1 - es la vista esquemática lateral de un dispositivo de refrigeración. Figure 1 - is the schematic side view of a cooling device.

La figura 2 - es la vista esquemática lateral de otra realización del dispositivo de refrigeración. Figure 2 - is the schematic side view of another embodiment of the cooling device.

Los elementos mostrados en las figuras se numeran como sigue: The elements shown in the figures are numbered as follows:

1.one.
Dispositivo de refrigeración  Cooling device

2. 2.
Compartimiento de congelación Freezing compartment

3.3.
Compartimento de alimentos frescos  Fresh Food Compartment

4.Four.
Compresor  Compressor

5.5.
Evaporador  Evaporator

6.6.
Canal de aire  Air channel

7.7.
Unidad anti-escarcha  Anti-frost unit

8.8.
Ventilador  Fan

9.9.
Unidad de control  Control unit

10. 10.
Cámara del evaporador Evaporator chamber

11.eleven.
Calentador  Heater

En la realización preferida de la presente invención, el dispositivo de refrigeración (1) comprende una cámara del evaporador (10) en la que está situado el evaporador (5), separada del compartimiento de congelación (2) mediante una pared y conectada al compartimiento de alimentos frescos (3) mediante el canal de aire (6). In the preferred embodiment of the present invention, the cooling device (1) comprises an evaporator chamber (10) in which the evaporator (5) is located, separated from the freezing compartment (2) by a wall and connected to the compartment of fresh food (3) through the air channel (6).

El dispositivo de refrigeración (1) comprende una unidad de control (9) que reúne información sobre la temperatura The cooling device (1) comprises a control unit (9) that collects temperature information

ambiente, directa o indirectamente. environment, directly or indirectly.

En una realización de la presente invención, la unidad de control (9) comprende un sensor de calor que mide la temperatura ambiente directamente. Cuando la temperatura (T) cae por debajo de un cierto valor (Tset), por ejemplo 1-5°C, la unidad de control (9) decide que hay un r iesgo de escarcha en el canal de aire (6). In one embodiment of the present invention, the control unit (9) comprises a heat sensor that measures the ambient temperature directly. When the temperature (T) falls below a certain value (Tset), for example 1-5 ° C, the control unit (9) decides that there is a risk of frost in the air channel (6).

En otra realización de la presente invención, la unidad de control (9) mide el tiempo de apagado (toff) y tiempo de funcionamiento (ton) del compresor (4), y cuando la relación del tiempo de funcionamiento (ton/(ton + toff)), que es el cociente del tiempo de funcionamiento (ton) respecto al tiempo total (ton + toff) cae por debajo de un cierto valor, por ejemplo del 30 al 40%, decide que la temperatura ambiente es tan baja como para causar escarcha en el canal de aire (6). In another embodiment of the present invention, the control unit (9) measures the shutdown time (toff) and operating time (ton) of the compressor (4), and when the ratio of the operating time (ton / (ton + toff)), which is the ratio of the operating time (ton) to the total time (ton + toff) falls below a certain value, for example 30 to 40%, decides that the ambient temperature is so low as to cause frost in the air channel (6).

En una realización de la presente invención, la unidad anti-escarcha (7) comprende al menos un ventilador (8) que es operado durante el período de apagado del compresor (4), cuando la unidad de control (9) decide que la temperatura ambiente puede causar escarcha en el canal de aire (6), evitando así que el aire frío en la cámara del evaporador (10) fluya dentro del canal de aire (6). Este ventilador (8) también puede proporcionar circulación de aire mientras el compresor (4) está en funcionamiento. El ventilador (8) puede ser operado a la misma velocidad de rotación mientras el compresor (4) está encendido y apagado, o puede ser operado a una velocidad más baja después de la detención del compresor (4). In an embodiment of the present invention, the anti-frost unit (7) comprises at least one fan (8) that is operated during the compressor shutdown period (4), when the control unit (9) decides that the temperature ambient can cause frost in the air channel (6), thus preventing cold air in the evaporator chamber (10) from flowing into the air channel (6). This fan (8) can also provide air circulation while the compressor (4) is running. The fan (8) can be operated at the same rotation speed while the compressor (4) is on and off, or it can be operated at a lower speed after the compressor has stopped (4).

Si la temperatura ambiente está por debajo de un cierto valor (T < Tset), la unidad anti-escarcha (7) se enciende después de que el compresor (4) se detenga. La unidad anti-escarcha (7) acciona el ventilador (8) durante el período de apagado del compresor (4), evitando así que el aire en el compartimiento de congelación (2) fluya dentro del canal de aire (6) y provoque que la temperatura de este canal caiga. El ventilador (8) hace circular el aire desde el compartimiento de alimentos frescos (3) al canal de aire (6) y hacia el evaporador (5) desde allí. De esta manera, cuando el compresor (4) y el ventilador (8) empiezan a operar juntos de nuevo, se impide que la humedad en el aire caliente procedente del compartimiento de alimentos frescos (3) se condense y forme escarcha. If the ambient temperature is below a certain value (T <Tset), the anti-frost unit (7) turns on after the compressor (4) stops. The anti-frost unit (7) drives the fan (8) during the compressor shutdown period (4), thus preventing the air in the freezing compartment (2) from flowing into the air channel (6) and causing the The temperature of this channel falls. The fan (8) circulates the air from the fresh food compartment (3) to the air channel (6) and to the evaporator (5) from there. In this way, when the compressor (4) and the fan (8) start operating together again, moisture in the hot air from the fresh food compartment (3) is prevented from condensing and forming frost.

En otra realización de la presente invención, la unidad anti-escarcha (7) comprende un calentador (11) que comienza a operar después de que el compresor (4) se detenga, con la condición de que la unidad de control (9) haya decidido que la temperatura ambiente puede causar escarcha en el canal de aire (6). El calentador (11) se coloca en el canal de aire (6). El calentador (11) puede ser accionado en solitario o junto con el ventilador (8). In another embodiment of the present invention, the anti-frost unit (7) comprises a heater (11) that begins to operate after the compressor (4) stops, with the condition that the control unit (9) has decided that the ambient temperature can cause frost in the air channel (6). The heater (11) is placed in the air channel (6). The heater (11) can be operated alone or together with the fan (8).

Cuando la temperatura ambiente (T) cae por debajo de un cierto valor (T < Tset), la unidad anti-escarcha (7) comienza a operar después que el compresor (4) se detenga, calentando el canal de aire (6) durante el período de apagado del compresor (4), y evitando así que el aire que fluye desde la cámara del evaporador (10) enfríe el canal de aire (6). De esta manera, se evita que la temperatura del canal de aire (6) caiga por debajo de la temperatura de congelación del agua, e impidiendo que la humedad del aire caliente que fluye desde el compartimiento de alimentos frescos (3) se condense y forme escarcha cuando el compresor (4) y el ventilador (8) comiencen a funcionar juntos de nuevo. When the ambient temperature (T) falls below a certain value (T <Tset), the anti-frost unit (7) starts operating after the compressor (4) stops, heating the air channel (6) during the shutdown period of the compressor (4), and thus preventing the air flowing from the evaporator chamber (10) to cool the air duct (6). In this way, the temperature of the air channel (6) is prevented from falling below the freezing temperature of the water, and preventing the humidity of the hot air flowing from the fresh food compartment (3) from condensing and forming Frost when the compressor (4) and fan (8) start working together again.

En el dispositivo de refrigeración (1) de la presente invención, se evita la escarcha en el canal de aire (6) a bajas temperaturas ambiente mediante el funcionamiento del ventilador (8) o del calentador (11) durante el período de apagado del compresor (4). En consecuencia, el problema de bloqueo del canal de aire (6) está resuelto. In the cooling device (1) of the present invention, frost in the air channel (6) is avoided at low ambient temperatures by operating the fan (8) or the heater (11) during the compressor shutdown period (4). Consequently, the problem of blocking the air channel (6) is solved.

Claims (5)

REIVINDICACIONES 1. Dispositivo de refrigeración (1) que comprende un compresor (4) que comprime y hace circular fluido refrigerante en un ciclo de refrigeración, un compartimiento de alimentos frescos (3) en el que se almacenan los alimentos para propósitos de refrigeración, un compartimiento de congelación (2) en el que el alimento es almacenado para 5 propósitos de congelación, manteniéndose a temperaturas más bajas que las del compartimento de alimentos frescos (3), por lo menos un evaporador (5) para la transferencia de calor desde el medio al fluido refrigerante, y al menos un canal de aire (6) para el paso de aire entre el compartimento de alimentos frescos (3) y el evaporador (5) y una unidad anti-escarcha (7), que impide que la temperatura del canal de aire (6) caiga por debajo de la temperatura de congelación del agua, y caracterizado por una unidad de control (9) que recoge información sobre la 1. Refrigeration device (1) comprising a compressor (4) that compresses and circulates refrigerant fluid in a refrigeration cycle, a fresh food compartment (3) in which food is stored for refrigeration purposes, a compartment of freezing (2) in which the food is stored for 5 freezing purposes, keeping at temperatures lower than those of the fresh food compartment (3), at least one evaporator (5) for heat transfer from the medium to the refrigerant fluid, and at least one air channel (6) for the passage of air between the fresh food compartment (3) and the evaporator (5) and an anti-frost unit (7), which prevents the temperature of the air channel (6) falls below the freezing temperature of the water, and characterized by a control unit (9) that collects information on the 10 temperatura ambiente, directa o indirectamente, e interruptores de la unidad anti-escarcha (7) cuando la temperatura ambiente (T) está por debajo de un cierto valor (Tset), durante el período de apagado del compresor (4). 10 ambient temperature, directly or indirectly, and switches of the anti-frost unit (7) when the ambient temperature (T) is below a certain value (Tset), during the compressor shutdown period (4). 2. Dispositivo de refrigeración (1) según la reivindicación 1, caracterizado por una cámara del evaporador (10) en la que está situado el evaporador (5), separado del compartimiento de congelación (2) por una pared y conectado al compartimiento de alimentos frescos (3) mediante el canal de aire (6) y por la unidad anti-escarcha (7) que 2. Refrigeration device (1) according to claim 1, characterized by an evaporator chamber (10) in which the evaporator (5) is located, separated from the freezing compartment (2) by a wall and connected to the food compartment fresh (3) by the air channel (6) and by the anti-frost unit (7) that 15 comprende un ventilador (8) operado durante el período de apagado del compresor (4), circulando el aire desde el compartimiento de alimentos frescos (3) dentro del canal de aire (6) y desde allí hacia el evaporador (5), evitando así que el aire frío en la cámara del evaporador (10) fluya dentro del canal de aire (6) cuando el compresor (4) no funciona. 15 comprises a fan (8) operated during the compressor shutdown period (4), the air circulating from the fresh food compartment (3) inside the air channel (6) and from there to the evaporator (5), avoiding so that the cold air in the evaporator chamber (10) flows into the air channel (6) when the compressor (4) does not work. 3. Dispositivo de refrigeración (1) según la reivindicación 2, caracterizado por la unidad anti-escarcha (7), que 20 comprende el ventilador (8), cuya velocidad de rotación se disminuye después de que el compresor (4) se detenga. 3. Cooling device (1) according to claim 2, characterized by the anti-frost unit (7), which comprises the fan (8), whose rotation speed is decreased after the compressor (4) stops.
4.Four.
Dispositivo de refrigeración (1) según la reivindicación 1, caracterizado por la unidad anti-escarcha (7), que comprende un calentador (11) que comienza a operar después de que el compresor (4) se detenga y caliente el canal de aire (6).  Cooling device (1) according to claim 1, characterized by the anti-frost unit (7), comprising a heater (11) that starts operating after the compressor (4) stops and heats the air channel ( 6).
5.5.
Dispositivo de refrigeración (1) según cualquiera de las reivindicaciones anteriores, caracterizado por la unidad  Cooling device (1) according to any of the preceding claims, characterized by the unit
25 de control (9) que mide el tiempo de apagado (toff) y el tiempo de funcionamiento (ton) del compresor (4), y cuando la relación del tiempo de funcionamiento (ton/(ton + toff)), que es la relación del tiempo de operación (ton) respecto al tiempo total (ton + toff), cae por debajo de un cierto valor, decide que la temperatura ambiente es tan baja como para formar escarcha en el canal de aire (6). 25 (9) which measures the shutdown time (toff) and the operating time (ton) of the compressor (4), and when the ratio of the operating time (ton / (ton + toff)), which is the ratio of the operating time (ton) to the total time (ton + toff), falls below a certain value, decides that the ambient temperature is so low as to form frost in the air channel (6).
ES06710984T 2005-03-01 2006-02-28 Cooling device Active ES2383608T3 (en)

Applications Claiming Priority (3)

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KR101586370B1 (en) * 2013-12-26 2016-01-19 동부대우전자 주식회사 Refrigerator control method
CN105588395B (en) * 2016-02-25 2017-10-24 合肥美菱股份有限公司 A kind of wind cooling refrigerator duct heating system and its control method
CN108885050B (en) * 2016-03-01 2022-02-01 三菱电机株式会社 Refrigerator with a door
CN108870832B (en) * 2017-05-11 2021-05-04 博西华电器（江苏）有限公司 Refrigerator with a door
CN111503964B (en) * 2020-03-26 2021-09-03 广州美的华凌冰箱有限公司 Refrigerator, anti-freezing control method, electronic device, and computer-readable storage medium
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RU2762803C1 (en) * 2020-05-13 2021-12-23 Юрий Николаевич Харченко Refrigeration unit

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EP1853863A1 (en) 2007-11-14
CN101133293A (en) 2008-02-27
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KR100908021B1 (en) 2009-07-15
KR20070108232A (en) 2007-11-08

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