KR20120039910A - Method for controlling low room temperature of refrigerator - Google Patents

Method for controlling low room temperature of refrigerator Download PDF

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Publication number
KR20120039910A
KR20120039910A KR1020100101360A KR20100101360A KR20120039910A KR 20120039910 A KR20120039910 A KR 20120039910A KR 1020100101360 A KR1020100101360 A KR 1020100101360A KR 20100101360 A KR20100101360 A KR 20100101360A KR 20120039910 A KR20120039910 A KR 20120039910A
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KR
South Korea
Prior art keywords
temperature
refrigerator
low
room temperature
compartment
Prior art date
Application number
KR1020100101360A
Other languages
Korean (ko)
Inventor
양익준
Original Assignee
주식회사 대우일렉트로닉스
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 대우일렉트로닉스 filed Critical 주식회사 대우일렉트로닉스
Priority to KR1020100101360A priority Critical patent/KR20120039910A/en
Publication of KR20120039910A publication Critical patent/KR20120039910A/en

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D29/005—Mounting of control devices
    • 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
    • F25D2317/068—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 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • 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

Abstract

PURPOSE: A method for controlling low room temperature of a refrigerator is provided to prevent increasing freezer temperature by controlling a compressor and a blowing fan with ON/OFF control when the periphery of a refrigerator is in a low room temperature state and the value detected by a cold room temperature sensor is higher than a preset reference temperature. CONSTITUTION: A method for controlling low room temperature of a refrigerator is as follows. A step for determining whether the periphery of a refrigerator is low temperature through an external temperature sensor(S100). In case the periphery of the refrigerator is low room temperature and it's not low room temperature, a set temperature is respectively measured by a cold room temperature sensor installed in a cold room of the refrigerator. In case the periphery of the refrigerator is low room temperature and the measured cold room temperature is higher than the set temperature, the blowing fan is time controlled for ON/OFF and the compressor is kept in operation state(S300). If the cold room temperature is lower than the set temperature, the blowing fan and the compressor are kept in OFF state(S400).

Description

TECHNICAL FOR CONTROLLING LOW ROOM TEMPERATURE OF REFRIGERATOR}

The present invention relates to a low temperature control method of a refrigerator, and more particularly, to a low temperature control method of a refrigerator that can effectively prevent the temperature in the freezer compartment from being cooled when low temperature around the refrigerator is sensed.

In general, a refrigerator is a device that keeps food fresh for a certain period of time by lowering the temperature inside the refrigerating compartment and the freezing compartment as the refrigerant is repeatedly compressed, condensed, expanded, and evaporated.

In the refrigerator, the inside of the main body is divided into a freezer compartment and a refrigerating compartment, and a rear wall includes an evaporator for generating cold air and a fan for forcibly blowing cold air generated by the evaporator to the freezer compartment and the refrigerating compartment.

It also includes a cold air duct appropriately distributes the cold air forced by the operation of the fan to the freezer compartment and the refrigerating compartment to guide the freezer compartment and the refrigerating compartment.

Hereinafter, a structure of a refrigerator according to the prior art will be described with reference to FIG. 1.

As shown, the refrigerator according to the prior art is divided into a freezer compartment 11 and a refrigerating compartment 12 by a partition wall mounted at a predetermined portion of the main body 10.

In the cold air supply structure, a portion of the cold air cooled by heat exchange in the evaporator 20 through which the low temperature and low pressure refrigerant passes through is forcedly blown by the blower fan 30 to be supplied to the freezing chamber 11, and the remaining cold air is supplied. Is supplied to the refrigerating chamber 12 via the cold air duct 40.

In addition, the refrigerator compartment temperature sensor 50 is mounted inside the refrigerator compartment 12, and when the temperature inside the refrigerator compartment 20 measured by the refrigerator compartment temperature sensor 50 is higher than a set temperature, the freezer compartment 10 And a compressor P for cooling the inside of the refrigerating chamber 20 to supply cold air.

However, since the refrigerator according to the related art has a refrigerating chamber control method, the use rate of the refrigerating chamber 12 is not only low, but the operation rate is decreased in the winter when the surrounding temperature is low, so that the internal temperature of the freezing chamber 11 is increased. There was a problem that a weak cooling phenomenon rises easily.

Therefore, in order to solve this problem, even if the recognized value of the refrigerating compartment temperature sensor 50 is slightly lower than the on / off reference temperature of the cooling cycle, the compressor is set to operate so as to forcibly increase the operation rate to thereby increase the temperature of the freezing compartment 11. However, in this case, the frequent driving of the compressor (P) and the blower fan (30) takes a lot of electric charges, there was a problem that the performance degradation of the refrigerator occurs.

The present invention has been made to solve the above problems, an object of the present invention is to control the operation of the blower fan and the compressor by the temperature change detected the low temperature around the refrigerator to effectively increase the temperature in the freezer compartment It is to provide a low temperature control method of the refrigerator that can be prevented by.

In order to achieve the above object, the low-temperature control method of the refrigerator according to the present invention,

A low room temperature detection step of determining whether the vicinity of the refrigerator is low temperature through an external temperature sensor;

A refrigerator compartment temperature measuring step of measuring a temperature set by a refrigerator compartment temperature sensor installed in the refrigerator compartment of the refrigerator when the room temperature is low and the temperature is not low; And,

In the case of low room temperature, when the temperature of the refrigerating compartment measured in the refrigerating compartment temperature measuring step is higher than the set temperature, the blower fan controls the on / off time and keeps the driving of the compressor on, while the refrigerating compartment temperature measuring step is measured. And a low room temperature control step of keeping the blower fan and the compressor in an off state when the temperature of the refrigerating compartment is lower than the set temperature.

In particular, the on and off time control of the blower fan,

After the cooling fan is stored in the off state by accumulating cold heat, the cooling fan is kept in an on state when the cooling heat is accumulated after a predetermined time has elapsed, so that the cooling heat is supplied to the freezing compartment.

In addition, the accumulation of the cold heat and the operation of the blowing fan is characterized in that it is made repeatedly.

And, if it is determined in the low room temperature detection step is not the low room temperature, when the temperature of the refrigerator compartment measured in the refrigerator compartment temperature measuring step is higher than the set temperature, the blower fan and the compressor is kept on, while measuring the refrigerator compartment temperature When the temperature of the refrigerating chamber measured in the step is lower than the set temperature, characterized in that it comprises a drive control step of maintaining the blowing fan and the compressor in the off state.

According to the present invention, the refrigerator and the blower fan can be controlled on and off by the low temperature sensing step, which operates when the temperature around the refrigerator is low and the detected value of the refrigerator compartment temperature sensor is higher than the set reference temperature. Likewise, even when the ambient temperature of the refrigerator main body is low, the internal temperature of the freezer compartment can be prevented from rising.

1 is a cross-sectional view showing the configuration of a refrigerator according to the prior art.
2 is a cross-sectional view showing a refrigerator applied to an embodiment of the present invention.
3 is a flowchart illustrating a method for controlling low temperature of a refrigerator according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3.

As shown in FIG. 2, the refrigerator according to the present invention includes a refrigerator main body 10 partitioned into a freezing compartment 11 and a refrigerating chamber 12 by a separating wall, and an evaporator installed on a rear wall surface of the refrigerator main body 10. 20, a blower fan 30 and a cold air duct 40, an external temperature sensor 60 installed on an outer surface of the refrigerator body 10 to determine a low room temperature, and an internal temperature of the refrigerating chamber 12. It comprises a refrigerating chamber temperature sensor 50 for measuring the.

The refrigerator according to this configuration operates the compressor (P), the evaporator 20 and the blower fan 30 to maintain a proper temperature in the refrigerating chamber 12 through the refrigerating chamber temperature sensor 50. Cold air is supplied to the refrigerating chamber 12.

Hereinafter, a low temperature control method of the refrigerator according to the present invention will be described in detail.

As shown in FIG. 3, the method for controlling low temperature of the refrigerator includes a low temperature sensing step (S100) of determining whether the surrounding area of the refrigerator is low temperature through the external temperature sensor 60, and a case of low temperature and low temperature. If not, the refrigerator compartment temperature measuring step (S200) (S200 ') for measuring the set temperature through the refrigerator compartment temperature sensor 50 installed in the refrigerator compartment 12 of the refrigerator, respectively, and if the room temperature, the refrigerator compartment temperature measuring step ( When the temperature of the refrigerating compartment measured in S200 is higher than the set temperature, the blower fan 30 controls the on / off time and keeps the drive of the compressor P on, while in the refrigerating compartment temperature measuring step (S200). If the measured temperature of the refrigerating chamber is lower than the set temperature includes a low temperature control step (S400) for maintaining the blowing fan 30 and the compressor (P) in the off state.

Specifically, when the temperature of the refrigerating compartment measured in the refrigerating compartment temperature measuring step (S200) is higher than a set temperature, the on / off time control of the blowing fan 30 first maintains the blowing fan 30 in an off state to cool the heat. By accumulating, the temperature of the freezing compartment does not easily rise, and when the cooling heat is sufficiently accumulated after a predetermined time, the blower fan 30 is kept on so that the cooling heat is supplied to the freezing compartment to further lower the freezing compartment temperature. .

Here, of course, the accumulation of the cold heat and the operation of the blower fan may be repeatedly performed for a predetermined time.

On the other hand, when it is determined that the low room temperature is not in the low room temperature detection step (S100), when the temperature of the refrigerator compartment measured in the refrigerator compartment temperature measurement step (S200 ') is higher than the set temperature, the blowing fan 30 and the compressor (P). While maintaining the on state, the general drive control step of maintaining the blowing fan 30 and the compressor (P) in the off state when the temperature of the refrigerating compartment measured in the refrigerating compartment temperature measuring step (S200 ') is lower than the set temperature ( S300) is of course included.

First, the low temperature sensing step (S100) measures the ambient temperature of the refrigerator body 10 through an external temperature sensor 60 installed on the outer surface of the refrigerator body 10, and measures the measured value of the refrigerator body 10. Transfer to the control unit (not shown).

For example, the low room temperature may be set to correspond to the case where the ambient temperature of the refrigerator body 10 is about 5 ° C. or less.

In addition, the refrigerating compartment temperature measuring step (S200) is a known technique for measuring and transmitting the temperature in the refrigerating compartment 12 by the refrigerating compartment temperature sensor 50 electrically connected to the control unit, and a detailed description thereof will be omitted.

In addition, when the drive control step (S300) is not the low room temperature, the driving of the blower fan 30 and the compressor (P) according to the measured value of the refrigerating compartment temperature sensor 50 of the refrigerating compartment temperature measuring step (S200), Serves to control off.

Specifically, the driving control step (S300), when the temperature displayed in the refrigerator compartment temperature sensor 50 is less than the set temperature, the driving of the blower fan 30 and the compressor (P) maintains the off state, it is higher than the set temperature In this case, the blower fan 30 and the compressor P maintain the on state to quickly supply the cool air.

On the other hand, the low temperature control step (S400) is the drive when the temperature in the refrigerating chamber 12 is higher or lower than the set reference in a state that the ambient temperature of the refrigerator main body 10 is low room temperature through the external temperature sensor 60 The compressor (P) and the blowing fan 30 of the control step (S300) serves to control the on, off respectively.

Since the specific control method of the low temperature control step (S400) has been described above, a redundant description thereof will be omitted.

As a result, when the ambient temperature of the refrigerator main body 10 maintains the temperature above the room temperature, the drive control step S300 corresponding to the measured value of the refrigerating compartment temperature measuring step S200 is repeatedly performed to freeze the chamber 11. ) And control to keep the temperature of the refrigerating chamber 12 constant.

On the other hand, when the ambient temperature of the refrigerator main body 10 is lowered to a low room temperature state in the process of maintaining the temperature of the freezer compartment 11 and the refrigerating compartment 12 constant, the low temperature control step (S400) of the low room temperature state The process will proceed.

According to the present invention configured as described above, the compressor (P) and the blower fan (30) by the low temperature detection step (S400) that operates when the ambient temperature around the refrigerator is low, and the refrigerator compartment temperature sensor 50 is higher than the set reference. Since it can be controlled on and off, respectively, even when the ambient temperature of the refrigerator main body 10 is low, such as in winter, the internal temperature of the freezer compartment 12 can be easily lowered, and the proper operation rate is maintained so that the electric power consumption is not excessive. It can be effective.

10: refrigerator body
20: evaporator
30: blower fan
40: cold duct
50: fridge temperature sensor
60: external temperature sensor
P: Compressor
S100: low temperature detection stage
S200: fridge temperature measurement step
S300: drive control step
S400: low temperature detection step

Claims (4)

A low room temperature detection step of determining whether the vicinity of the refrigerator is low temperature through an external temperature sensor;
A refrigerator compartment temperature measuring step of measuring a temperature set by a refrigerator compartment temperature sensor installed in the refrigerator compartment of the refrigerator when the room temperature is low and the temperature is not low; And,
In the case of low room temperature, when the temperature of the refrigerating compartment measured in the refrigerating compartment temperature measuring step is higher than the set temperature, the blower fan controls the on / off time and keeps the driving of the compressor on, while the refrigerating compartment temperature measuring step is measured. And a low temperature control step of keeping the blower fan and the compressor in an off state when the temperature of the refrigerating compartment is lower than the set temperature.
The method of claim 1,
Blowing fan on / off time control is
After the cooling fan is stored in the off state by accumulating cold heat, the cooling fan is kept in the on state when the cooling heat is accumulated after a predetermined time has elapsed so that the cooling heat is supplied to the freezing compartment. Room temperature control method.
The method of claim 2,
Accumulation of the cold heat and operation of the blower fan is a low temperature control method of the refrigerator, characterized in that it is made repeatedly.
4. The method according to any one of claims 1 to 3,
If it is determined that the low temperature is not low in the low temperature detection step, when the temperature of the refrigerating compartment measured in the refrigerating compartment temperature measuring step is higher than the set temperature, the blower fan and the compressor are kept on, while in the refrigerating compartment temperature measuring step And a driving control step of keeping the blower fan and the compressor in an off state when the measured temperature of the refrigerating compartment is lower than the set temperature.
KR1020100101360A 2010-10-18 2010-10-18 Method for controlling low room temperature of refrigerator KR20120039910A (en)

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KR1020100101360A KR20120039910A (en) 2010-10-18 2010-10-18 Method for controlling low room temperature of refrigerator

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Application Number Priority Date Filing Date Title
KR1020100101360A KR20120039910A (en) 2010-10-18 2010-10-18 Method for controlling low room temperature of refrigerator

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KR20120039910A true KR20120039910A (en) 2012-04-26

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KR1020100101360A KR20120039910A (en) 2010-10-18 2010-10-18 Method for controlling low room temperature of refrigerator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990356A (en) * 2015-06-25 2015-10-21 合肥美的电冰箱有限公司 Compressor start control method and system and refrigerator
CN105737511A (en) * 2016-05-07 2016-07-06 康丰生 Refrigerator with function of door closing prompt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990356A (en) * 2015-06-25 2015-10-21 合肥美的电冰箱有限公司 Compressor start control method and system and refrigerator
CN104990356B (en) * 2015-06-25 2017-06-20 合肥美的电冰箱有限公司 Compressor start-up control method and system, refrigerator
CN105737511A (en) * 2016-05-07 2016-07-06 康丰生 Refrigerator with function of door closing prompt

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