KR20110072714A - Temperature control apparatus and method in refrigerator - Google Patents

Temperature control apparatus and method in refrigerator Download PDF

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Publication number
KR20110072714A
KR20110072714A KR1020090129762A KR20090129762A KR20110072714A KR 20110072714 A KR20110072714 A KR 20110072714A KR 1020090129762 A KR1020090129762 A KR 1020090129762A KR 20090129762 A KR20090129762 A KR 20090129762A KR 20110072714 A KR20110072714 A KR 20110072714A
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KR
South Korea
Prior art keywords
temperature
refrigerator
reference value
cooling fan
water level
Prior art date
Application number
KR1020090129762A
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Korean (ko)
Inventor
신상인
Original Assignee
주식회사 대우일렉트로닉스
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Application filed by 주식회사 대우일렉트로닉스 filed Critical 주식회사 대우일렉트로닉스
Priority to KR1020090129762A priority Critical patent/KR20110072714A/en
Publication of KR20110072714A publication Critical patent/KR20110072714A/en

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    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices

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  • 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)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

The present invention relates to a temperature control device and a temperature control method of a refrigerator, and not only cools the compressor by using a cooling fan provided in the refrigerator machine room, but also evaporates the defrost water of the evaporation name located on the opposite side thereof, so that the entire machine room is uniform. The present invention relates to a temperature control device and a temperature control method of a refrigerator for maintaining temperature and humidity.

Refrigerator, temperature controller, temperature controller, two way, cooling fan, compressor, evaporation name, temperature sensor, water level sensor, controller

Description

Temperature control apparatus and temperature control method of a refrigerator {Temperature control apparatus and method in refrigerator}

The present invention relates to a temperature control device and a temperature control method of a refrigerator, and more particularly, to a temperature control device and a temperature of a refrigerator to maintain a uniform temperature and humidity through the cooling fan provided in the machine room of the refrigerator. It relates to a control method.

In general, refrigerators are largely classified into indirect cooling (hereinafter referred to as intercooling) and direct cooling (hereinafter referred to as direct cooling) according to a cooling method.

The intercooled refrigerator is generally applied to a medium-large sized refrigerator having a large storage capacity, and the evaporator is closed to one side space of the refrigerator so as not to be exposed. The inside of the refrigerator is configured to circulate air inside the refrigerator by using an airflow device such as a fan. By such a circulation method, the internal temperature of the refrigerating compartment is kept at a low temperature.

The direct-cooling refrigerator is used in a small refrigerator having a relatively small storage capacity, and the evaporator is mounted to expose the internal space. In addition, the evaporator heat exchanges directly on the surface to maintain the internal temperature of the refrigerating chamber at a low level.

The inter-cooled and direct-cooled refrigerators are provided with a compressor for compressing a low-temperature low-pressure gas refrigerant cooled by the evaporator into a high-temperature high-pressure gas state in a machine room located at a lower end thereof, and a natural convection of the high-temperature high-pressure gas refrigerant compressed by the compressor with external air. A condenser for heat exchange by forced convection and forcibly cooled and liquefied with a liquid refrigerant having a low temperature and high pressure is mounted. One side of the compressor is equipped with a cooling fan that blows air to the compressor to lower the temperature.

In addition, the evaporator is equipped with an evaporation name, which is a collecting means for collecting moisture in the air generated when the air is cooled by heat-exchanging the air, that is, defrost water, and draining it to one place.

At this time, the compressor, the cooling fan, the condenser, and arranged in order of evaporation name, because the temperature of the compressor is the highest because the cooling fan is usually configured to blow the air toward the compressor.

However, in the conventional refrigerator, the left and right deviations occur not only in the machine room but also in the ambient temperature of the entire refrigerator. Such a temperature deviation affects the inside of the refrigerator, and thus the temperature difference occurs in the entire refrigerator. This causes a problem that an inefficient cooling situation occurs.

On the other hand, in the installation position for the cooling fan, in the evaporation name it is not possible to increase the amount of evaporation of defrost water is indirectly evaporated defrost water.

Therefore, since the cooling fan must be driven for a long time or the speed of the cooling fan must be increased, an inefficient cooling situation of the refrigerator can occur, and driving noise is increased.

Accordingly, the present invention is invented to solve the above problems, a refrigerator that can not only cool the compressor by using a cooling fan provided in the machine room of the refrigerator but also evaporate the defrost water of the evaporation name located on the opposite side thereof. To provide a temperature control device and a temperature control method of.

In order to achieve the above object, a first embodiment of a temperature control apparatus for a refrigerator according to the present invention includes: a sensor device including a temperature sensor unit installed at the left and right sides of a refrigerator inside or outside the refrigerator to sense a temperature of the refrigerator; A cooling fan including a rotation blade unit rotatably installed in both directions and a fan motor unit generating a driving force on the rotation blade unit; And determining whether the rotary blade is driven forward or reverse in accordance with the measured value of the sensor device, and transmitting an operation signal to the fan motor unit, wherein a difference value for the temperature measured by the sensor device exceeds a set reference value. And a control device for controlling the cooling fan to rotate in a direction opposite to the initial forward direction until the difference value with respect to the temperature reaches a set reference value.

A second embodiment of the temperature control apparatus of the refrigerator according to the present invention includes a sensor device comprising a water level sensor unit for detecting the water level of the defrost water installed in the refrigerator; A cooling fan including a rotation blade unit rotatably installed in both directions and a fan motor unit generating a driving force on the rotation blade unit; And determining whether the rotary blade is driven forward or reverse according to the measured value of the sensor device, and transmitting an operation signal to the fan motor unit, when the level of the defrost water measured by the sensor device exceeds a set reference value. And a control device for controlling the cooling fan to rotate in a direction opposite to the initial forward direction until the set reference value for the defrost water level is reached.

In a first embodiment of a method for controlling a temperature of a refrigerator according to the present invention, a temperature value is received from a temperature sensor unit installed at the left and right sides of a refrigerator inside or outside of a refrigerator, and a difference value for measured temperature is compared with a preset reference value. The first step to do; A second step of determining whether a set reference value is exceeded with respect to a difference value with respect to the temperature measured by the temperature sensor unit; And a third step of controlling the rotation direction of the cooling fan according to whether the set reference value is exceeded with respect to the difference value with respect to the temperature measured by the temperature sensor unit.

According to a second embodiment of the method of controlling a temperature of a refrigerator according to the present invention, a first level of comparing a measured water level with a preset reference value is received by receiving water level information of a defrost water from a water level sensor unit installed at an evaporation name of a refrigerator. step; A second step of determining whether a set reference value is exceeded with respect to a difference value with respect to the water level of the defrost water measured by the water level sensor; And a third step of controlling a rotation direction of the cooling fan according to whether or not the set reference value is exceeded with respect to the water level of the defrost water measured by the water level sensor unit.

As described above, according to the temperature control apparatus and the temperature control method of the refrigerator according to the present invention, by using the two-way cooling fan to cool the compressor, as well as to evaporate the defrost water of the evaporation name located on the opposite side, It is possible to reduce the left and right temperature deviation in the inside, it is possible to increase the amount of evaporation evaporation.

As a result, since the inside of the refrigerator maintains a uniform low temperature state, the cooling system efficiency can be improved.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a refrigerator according to the present invention.

As shown in FIG. 1, the refrigerator according to the present invention includes a storage compartment 11, which is a space for storing a storage such as food, in the main body 10, and the storage compartment 11 is divided into several spaces. At least one shelf 12 is provided for dividing.

In addition, the front of the refrigerator main body 10 is provided with a door (not shown) that can be opened and closed on one side.

The lower part of the refrigerator main body 10, that is, the lower part of the storage compartment 11, is provided with a machine room 20 equipped with cooling devices such as a compressor 21 and a condenser 22, and is provided in the refrigerator main body 10. The evaporator 13 for absorbing the latent heat of evaporation of the storage compartment 11 to maintain the storage compartment 11 at a low temperature is provided on the rear and left and right sides of the refrigerator body 10.

The compressor 21 compresses the low temperature low pressure gas refrigerant cooled by the evaporator 13 into a high temperature high pressure gas state.

The condenser 22 heat-exchanges the high-temperature, high-pressure gas refrigerant compressed by the compressor 21 by natural convection or forced convection with external air to forcibly cool and liquefy the liquid refrigerant with low-temperature and high pressure.

The evaporator 13 is a passage through which the refrigerant moves by the compressor 21 and the condenser 22. The evaporator 13 moves the refrigerant compressed by the compressor 21 and discharges the heat of the storage compartment 11 out of the refrigerator. It keeps the temperature of 11) at low temperature.

In addition, one side of the compressor 21 is equipped with a cooling fan 23 for blowing air to the compressor 21 to lower the temperature. The cooling fan 23 includes a rotary blade unit 23a rotatably installed in both directions and a fan motor unit 23b for generating a driving force to the rotary blade unit 23a.

In addition, the evaporator (13) is equipped with an evaporation name (24), which is a collecting means for collecting water in the air generated when the air is exchanged and cooled by the evaporator 13, that is, defrost water, to be collected in one place and drained to the outside.

The refrigerator configured as described above is provided with a temperature sensor unit 31 for measuring the ambient temperature at the left and right sides of the outside or inside the machine room or at the left and right sides of the machine room 20. The evaporation name 24 measures the level of the defrost water. The water level sensor part 32 is provided.

The fan motor unit determines whether the rotary blade unit 23a is driven forward or reverse rotation according to the measured value of any one of the temperature sensor unit 31 and the water level sensor unit 32. A control device 40 for transmitting an operation signal to 23b is provided.

Here, the control device 40 performs a function required by the refrigerator and is connected to other components configured to drive the refrigerator to transmit a command or receive information and process the same. That is, the sensor device 30 receives the temperature information about the inside or outside of the refrigerator or the water level information about the defrost water in the evaporation name 24 to control the rotation direction of the cooling fan 23 based on the information. . In particular, the present invention performs an algorithm for controlling the rotation direction of the cooling fan 23 according to the temperature or the water level information detected by the sensor device 30. This is illustrated in FIG. 2, and the detailed description is as follows.

2 is a flowchart illustrating a temperature control method of a refrigerator according to the present invention. The first embodiment will be described below.

The control device 40 receives the temperature information from the temperature sensor unit 31 installed on the left and right sides of the refrigerator inside or outside the refrigerator and compares the difference value with respect to the measured temperature and the setting reference value already set in the control device 40. It will be compared (S100). Here, the set reference value represents a value serving as a reference of the difference value with respect to the temperature measured by the temperature sensor unit 31 provided on the left and right sides of the refrigerator refrigerator or the refrigerator.

As a result of the comparison, it is determined whether the difference value with respect to the temperature measured by the temperature sensor unit 31 exceeds the set reference value set in the control device 40 (S110).

As a result of the determination, when the difference value with respect to the measured temperature exceeds the set reference value, the control device 40 transmits an operation signal to the fan motor unit 23b of the cooling fan 23 so that the temperature reaches the set reference value. Until the rotary blade (23a) to rotate in the opposite direction of the initial forward direction (S120). That is, the deviation of the temperature measured from the temperature sensor unit 31 inside or outside the refrigerator is reduced.

On the contrary, as a result of determining whether the set temperature is exceeded, when the difference value with respect to the temperature measured by the temperature sensor unit 31 reaches or falls below the set reference value, the controller 40 operates the refrigerator cooling system normally. It is determined that the state by transmitting the operation signal to the fan motor portion 23b of the cooling fan 23 to allow the rotary blade portion 23a to rotate in the initial forward direction (S130).

In addition, the second embodiment according to the present invention will be described.

The control device 40 receives the water level information from the water level sensor unit 32 for measuring the defrost water level of the evaporation name 24 provided in the machine room 20 of the refrigerator and the control device 40. The reference value already set in the comparison is compared (S100). Here, the set reference value indicates a value serving as a reference for the defrost water level of the evaporation name 24.

As a result of the comparison, it is determined whether the defrost water level measured by the water level sensor unit 32 exceeds a set reference value (S110).

As a result of determination, when the measured water level of the defrost water exceeds the set reference value, the control device 40 transmits an operation signal to the fan motor unit 23b of the cooling fan 23 and rotates until the set reference value is reached. To allow the wing portion 23a to rotate in the opposite direction of the initial forward direction (S120). That is, it is possible to increase the amount of defrost water evaporation name 24.

On the contrary, as a result of determining whether the set water level is exceeded, when the water level measured by the water level sensor 32 reaches or falls below a set reference value, the controller 40 determines that the cooling system of the refrigerator is in a normal operating state. By transmitting the operation signal to the fan motor portion 23b of the cooling fan 23 to allow the rotary blade portion 23a to rotate in the initial forward direction (S130).

Through the control process as described above, the deviation of the temperature measured at the left and right sides of the refrigerator inside or outside the refrigerator is reduced, thereby increasing the efficiency of the cooling system of the refrigerator and increasing the amount of defrosting water in the evaporation name 24.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the general knowledge in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Anyone with a variety of modifications can be made, as well as such changes are within the scope of the appended claims.

1 is a schematic view showing a refrigerator according to the present invention,

2 is a flowchart illustrating a temperature control method of a refrigerator according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: main body 11: storage room

12: shelf 13: evaporator

20: machine room 21: compressor

22 condenser 23 cooling fan

24: evaporation name 30: sensor device

31: temperature sensor unit 32: water level sensor unit

Claims (6)

A sensor device installed on the left and right sides of the refrigerator in the refrigerator or outside the refrigerator and configured to sense a temperature of the refrigerator; A cooling fan including a rotation blade unit rotatably installed in both directions and a fan motor unit generating a driving force on the rotation blade unit; And The operating signal is transmitted to the fan motor unit by determining whether the rotary blade unit is driven forward or reverse according to the measured value of the sensor device, but when the difference value for the temperature measured by the sensor device exceeds a set reference value. And a controller for controlling the cooling fan to rotate in a direction opposite to the initial forward direction until the difference value with respect to the temperature reaches a preset reference value. Sensor device consisting of a water level sensor unit for detecting the level of defrost water installed in the refrigerator; A cooling fan including a rotation blade unit rotatably installed in both directions and a fan motor unit generating a driving force on the rotation blade unit; And The operating signal is transmitted to the fan motor unit by determining whether the rotary blade unit is driven forward or reverse according to the measured value of the sensor device, and when the level of the defrost water measured by the sensor device exceeds a set reference value, And a control unit for controlling the cooling fan to rotate in a direction opposite to the initial forward direction until the set reference value for the defrost water level is reached. A first step of receiving temperature information from a temperature sensor unit installed at the left and right sides of the refrigerator or outside the refrigerator, and comparing the difference value of the measured temperature with a preset reference value; A second step of determining whether a set reference value is exceeded with respect to a difference value with respect to the temperature measured by the temperature sensor unit; And And a third step of controlling a rotation direction of the cooling fan according to whether a set reference value is exceeded with respect to a difference value of the temperature measured by the temperature sensor unit.  The method of claim 3, wherein In the third step, when the difference value for the temperature measured by the temperature sensor unit exceeds the set reference value, the operation signal is transmitted to the cooling fan to initialize the cooling fan until the difference value for the temperature reaches the set reference value. Rotating in the opposite direction of the forward direction; And When the difference value for the temperature measured by the temperature sensor unit reaches or falls below the set reference value, by transmitting an operation signal to the cooling fan characterized in that the step of initially rotating the cooling fan until the set reference value is reached. How to control the temperature of the refrigerator. A first step of receiving the water level information of the defrost water from the water level sensor unit installed in the evaporation name of the refrigerator and comparing the measured water level with a preset reference value; A second step of determining whether a set reference value is exceeded with respect to the water level of the defrost water measured by the water level sensor; And And a third step of controlling the rotation direction of the cooling fan according to whether or not the set reference value is exceeded with respect to the water level of the defrost water measured by the water level sensor unit. The method of claim 5, In the third step, when the water level of the defrost water measured by the water level sensor unit exceeds a set reference value, the cooling fan is initially forwarded until the set reference value for the water level of the defrost water is reached by transmitting an operation signal to the cooling fan. Rotating in the opposite direction of; And When the water level of the defrost water measured by the water level sensor reaches or falls below a set reference value, transmitting an operation signal to the cooling fan to rotate the cooling fan in the initial forward direction until the set reference value is reached. Temperature control method.
KR1020090129762A 2009-12-23 2009-12-23 Temperature control apparatus and method in refrigerator KR20110072714A (en)

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KR1020090129762A KR20110072714A (en) 2009-12-23 2009-12-23 Temperature control apparatus and method in refrigerator

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Application Number Priority Date Filing Date Title
KR1020090129762A KR20110072714A (en) 2009-12-23 2009-12-23 Temperature control apparatus and method in refrigerator

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KR20110072714A true KR20110072714A (en) 2011-06-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111023647A (en) * 2019-12-29 2020-04-17 圣达电气有限公司 Multidirectional copper foil cooling device of crude foil machine
CN111895712A (en) * 2020-06-24 2020-11-06 卧龙电气驱动集团股份有限公司 Novel refrigerator air duct and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111023647A (en) * 2019-12-29 2020-04-17 圣达电气有限公司 Multidirectional copper foil cooling device of crude foil machine
CN111895712A (en) * 2020-06-24 2020-11-06 卧龙电气驱动集团股份有限公司 Novel refrigerator air duct and control method thereof

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