KR20110087465A - A refrigerator and a control method the same - Google Patents
A refrigerator and a control method the same Download PDFInfo
- Publication number
- KR20110087465A KR20110087465A KR1020100006895A KR20100006895A KR20110087465A KR 20110087465 A KR20110087465 A KR 20110087465A KR 1020100006895 A KR1020100006895 A KR 1020100006895A KR 20100006895 A KR20100006895 A KR 20100006895A KR 20110087465 A KR20110087465 A KR 20110087465A
- Authority
- KR
- South Korea
- Prior art keywords
- compressor
- refrigerator
- time
- temperature
- compartment
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003860 storage Methods 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 230000008859 change Effects 0.000 claims abstract description 20
- 238000007710 freezing Methods 0.000 claims abstract description 20
- 230000008014 freezing Effects 0.000 claims abstract description 20
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- 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
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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a method of controlling a refrigerator, and more particularly, to a method of controlling a refrigerator and a refrigerator to keep a compressor operation rate constant and to reduce power consumption.
A refrigerator according to an embodiment of the present invention includes a storage space including a freezer compartment and a refrigerating compartment; A storage room temperature sensor configured to sense a temperature change of the storage space according to a load acting on the storage space; A compressor in which on / off operation is repeated to cool the freezing compartment or the refrigerating compartment, and a predetermined optimum operation rate is defined; A timer for measuring a running time of the compressor; A memory for storing in advance a driving time measured by the timer; And a compressor controller controlling on / off of the compressor according to the temperature value detected by the storage chamber temperature sensor, and when the load is increased, increasing the cooling power of the compressor to control the compressor to be driven at the optimum operation rate. Included.
According to the refrigerator according to the present embodiment, the operation time of the compressor is measured, and the operation rate of the compressor can be kept constant by adjusting the cooling power according to the load variation.
Description
An embodiment of the present invention relates to a refrigerator and a method of controlling the refrigerator.
In general, a refrigerator is a device that can keep food fresh for a certain period of time by cooling a storage compartment (freezer or refrigerator compartment) while repeating a freezing cycle.
The refrigerator includes a compressor that compresses the refrigerant circulating the refrigeration cycle to high temperature and high pressure. The refrigerant compressed in the compressor generates cold air through the heat exchanger, and the generated cold air is supplied to the freezing compartment or the refrigerating compartment.
According to the conventional refrigerator, the compressor may be repeated ON / OFF according to the temperature value in the refrigerator.
If the temperature value in the refrigerator is equal to or higher than the preset temperature, the compressor is turned on to drive the refrigeration cycle. On the other hand, when the temperature value in the refrigerator is lower than or equal to the preset temperature, the compressor may be turned off because no need for cold air is supplied.
In the process of designing the refrigerator (freezing cycle), the ratio ("operation rate") at which the compressor is operated according to the volume of the refrigerator or the like may be optimized and set in advance. When the driving of the compressor is controlled while maintaining the set operation rate, the power consumption can be reduced.
Meanwhile, the compressor may be driven according to a predetermined cold power (power) according to the temperature of the place where the refrigerator is installed. For example, the higher the outside air temperature, the greater the cold power of the compressor can be driven.
In the process of driving the compressor at a predetermined cooling force, when an increase factor of the internal temperature occurs, that is, when the load inside the refrigerator is increased, it takes a long time for the temperature in the refrigerator to reach the preset temperature.
As such, even when a load fluctuation occurs during the operation of the refrigerator, the compressor is operated with a constant cooling power, so that the operation rate of the compressor is different from the optimum operation rate, thereby increasing power consumption.
In addition, when the outside air sensor is defective, there is a problem that the power consumption is increased as the compressor is driven with an unfavorable, that is, more than necessary cold power.
The present invention is to solve the above problems, an object of the present invention to provide a control method of the refrigerator and the refrigerator to reduce the power consumption by maintaining the operation rate of the compressor.
Refrigerator according to an embodiment of the present invention for achieving the above object, a storage space including a freezer compartment and a refrigerator compartment; A storage room temperature sensor configured to sense a temperature change of the storage space according to a load acting on the storage space; A compressor in which on / off operation is repeated to cool the freezing compartment or the refrigerating compartment, and a predetermined optimum operation rate is defined; A timer for measuring a running time of the compressor; A memory for storing in advance a driving time measured by the timer; And a compressor controller controlling on / off of the compressor according to the temperature value detected by the storage chamber temperature sensor, and when the load is increased, increasing the cooling power of the compressor to control the compressor to be driven at the optimum operation rate. Included.
In addition, a refrigerator according to another aspect includes a storage space including a freezer compartment and a refrigerating compartment; An outside temperature sensor to sense an outside temperature of the storage space; A compressor in which on / off operation is repeated to cool the freezing compartment or the refrigerating compartment, and a predetermined optimum operation rate is defined; A timer for measuring a running time of the compressor; A memory for storing in advance a driving time measured by the timer; And a compressor control unit configured to control the compressor to be driven at the optimum operation rate by reducing the cooling power of the compressor when the outside temperature sensed by the outside temperature sensor is reduced.
In addition, the control method of the refrigerator according to another aspect, the step of driving the compressor at a predetermined cold power according to the optimal operation rate; Measuring the driving time of the compressor; Storing the measured driving time in advance in the memory; Detecting a load change in the storage compartment; And increasing or decreasing the cooling power of the compressor in response to the driving time stored in the memory when the operating time of the compressor is to be increased or decreased in accordance with the load variation.
According to the refrigerator according to the embodiment of the present invention, since the operation rate is controlled in consideration of the previous operation time when the operation time of the compressor is restarted after the compressor is OFF, there is an advantage that a constant operation rate can be maintained.
In addition, even if a load variation occurs during the operation of the refrigerator, the compressor can maintain a constant running ratio by adjusting the cooling power of the compressor corresponding to the load variation.
In addition, since the compressor maintains a constant operation rate, there is an advantage that the power consumption for driving the refrigerator can be reduced.
1 is a perspective view showing a refrigerator configuration according to an embodiment of the present invention.
2 and 3 are views showing the configuration of a refrigeration cycle according to an embodiment of the present invention.
4 is a view showing the configuration of an ice making apparatus according to an embodiment of the present invention.
Figure 5 is a block diagram showing the configuration of a refrigerator according to an embodiment of the present invention.
6 and 7 are graphs showing an operation control state of a compressor according to an embodiment of the present invention.
8 is a flow chart showing a control method of a refrigerator according to an embodiment of the present invention.
Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.
1 is a perspective view showing a refrigerator configuration according to an embodiment of the present invention, Figures 2 and 3 are views showing the configuration of a refrigeration cycle according to an embodiment of the present invention, Figure 4 is an ice making according to an embodiment of the present invention A diagram showing the configuration of the device.
1 to 4, the
The
The
The refrigerating
In the lower rear part of the
The machine room (35) includes a compressor (60) for compressing a refrigerant at high temperature and high pressure, a condenser (70) and a condenser fan (72) for condensing the refrigerant discharged from the compressor (60), and the condenser (70). An expansion device (80) for depressurizing the refrigerant passing through with the refrigerant having a low temperature and low pressure is included.
In addition, an upper side of the
The refrigerating
In addition, an ice
5 is a block diagram showing the configuration of a refrigerator according to an embodiment of the present invention.
Referring to FIG. 5, the
The
In addition, the
The
The
The
The
In the
The operating frequency determined by the
The
The
That is, the
The
The temperature information detected by the
6 and 7 are graphs showing an operation control state of a compressor according to an embodiment of the present invention.
First, referring to FIG. 6, the
Here, the time of to may mean a time of starting the refrigerator after manufacture of the refrigerator, and when the internal temperature of the storage compartment, that is, the refrigerating
When the temperature detected by the refrigerating
In addition, the
After the
Here, the cooling force of the
Therefore, by increasing the frequency applied to the
The
In the state where the
That is, the
The temperature of the storage compartments 20, 30, 50 is sensed by the storage
That is, as shown in FIG. 6, the
Therefore, when the outside air temperature detected by the outside
The cooling force pattern after the
As described above, the cooling force pattern after the
That is, the compressor operating time values of tp1 and tp2 may be approximately constant. The time values of tp1 and tp2 are stored in the
In summary, the time of tp1 is stored, and the
For example, if the value of tp1 is 10 minutes, the value of tp2 may be a time value corresponding to tp1, that is, a value of approximately 9
Of course, an operating time error value (for example, 10 seconds for 10 minutes of operation time) of the
As described above, when the
However, there is a possibility of having a different pattern when the load of the refrigerator is greatly increased. For example, when the amount of food stored in the storage room is rapidly increased, when the opening time of the refrigerator door is abnormally increased, or when the outside temperature is increased.
On the other hand, in order to reduce the power consumption, the optimum value for the operation rate of the
However, as described above, when the load variation of the refrigerator is large, the time for which the
Here, the "run rate" means the ratio of the time the compressor is driven to the total time the refrigerator is driven (powered on).
If it is assumed that it is maintained substantially constant according to the outside temperature, that is, it is assumed that a sudden change in the outside temperature does not occur, the time at which the
Therefore, the constant operation rate may be implemented by keeping the drive time of the
Therefore, the present embodiment is characterized in that even when the load variation of the refrigerator is large, the time during which the
In detail, as shown in FIG. 6, after the compressor is turned off for a predetermined time (a time elapsed value from t3 to t4), the
And, if there is no load change of the refrigerator after the
However, when the refrigerator load is greatly increased at time t5, the increased temperature value of the outside air or the storage compartments 20, 30, 50 may be detected by the outside
If the cooling force of the
However, in the present embodiment, if the temperature of the storage compartment (20, 30, 50) does not reach the preset temperature at the time passing t6, that is, the operating time of the compressor to be operated by the load fluctuation is the tp1 or tp2 If greater, the
Here, t6 may be defined as a time value corresponding to t1 and t3 in the
The
Accordingly, the cooling force of the
For example, when the temperature value detected by the
As the cooling power of the
In this case, the time elapsed value tp3 from time t4 to t7 may be slightly larger than tp1 and tp2, but the
Thereafter, when the
As such, the measured driving times tp1 and tp2 of the compressor are stored in advance, and even when the load is changed, the value of tp3 can be adjusted according to the driving times tp1 and tp2, so that the operation rate of the compressor is increased. It can be kept constant.
7 shows a control state when the load of the refrigerator is reduced.
As described above, the compressor is turned off after being driven for tp1 with a predetermined pattern.
After the compressor is restarted, if the load of the refrigerator is reduced at time t8, for example, when the outside air temperature is lowered, the time for the storage compartments 20, 30, 50 to reach the set temperature becomes relatively short. .
Then, at P6 on the graph, the cooling force of the
After the
That is, as the load of the refrigerator decreases, the cooling power for reaching the set temperatures of the storage compartments 20, 30, and 50 may be reduced. As a result, the cooling force w4 of the compressor may be smaller than the normal cooling force w2 corresponding to the set temperature in order to maintain the operation rate of the
Subsequently, when the set temperature is satisfied at P7, the
As such, when the refrigerator load is reduced, the operation rate of the
In the present embodiment, when the operation time (operation rate) of the
Alternatively, however, the cooling power may be controlled to decrease after the refrigerator load decrease is detected but before the compressor is turned off.
As a result, even when the load of the refrigerator is reduced, the compressor can be driven for a predetermined time by lowering the cooling power, thereby maintaining the operation rate of the compressor.
In summary, if it is determined that the operation time of the compressor to be operated by the load variation of the storage compartment is greater than the driving time measured by the
On the contrary, if it is determined that the operation time of the compressor to be operated by the load variation is smaller than the measurement time stored in the
5 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.
A control method of a refrigerator according to an embodiment of the present invention will be described with reference to FIG. 5.
When the refrigerator is turned off, the temperature rise of the storage compartment may be sensed by the storage
In addition, the
As shown in FIG. 6 and FIG. 7, the
The elapsed time tp in the state where the
In the state where the
In a state in which the
When there is a load variation in the storage compartments 20, 30, 50 or the outside, temperature change values of the
Meanwhile, for the convenience of description, the step S19 is described as being controlled after the step S18. However, the step S19 may also be performed in the step S13.
When a change in the temperature of the storage compartments 20, 30, 50 or the external temperature is detected according to the load variation, the
Here, "variable by the cooling force corresponding to tp" means, as described with reference to FIGS. 6 and 7, that "in the state where the previous compressor driving time tp has elapsed, if the set temperature is not reached in advance, By adjusting the set cooling force to reach the set temperature in a short time. "
The variable cold power when the load variation is an increase in load will be greater than the cold power when there is no load variation, and the variable cold force when the load variation is a load reduction will be less than the cold force without a load variation.
That is, the
Thereafter, when the storage chamber reaches the set temperature, the cooling force of the
By such control, the time at which the
That is, the time tp which has been operated since the
As described above, the operation time of the compressor is measured and stored in advance by a timer, and in the case where a load change occurs in the refrigerator afterwards, the compressor may be adjusted according to the pre-stored operating time.
In this case, since the operation rate of the compressor is kept constant, the power consumption by the compressor can be reduced.
41: outside temperature sensor 42: refrigerator temperature sensor
43: freezer temperature sensor 60: compressor
100
160: timer 200: refrigerator control unit
Claims (11)
A storage room temperature sensor configured to sense a temperature change of the storage space according to a load acting on the storage space;
A compressor in which on / off operation is repeated to cool the freezing compartment or the refrigerating compartment, and a predetermined optimum operation rate is defined;
A timer for measuring a running time of the compressor;
A memory for storing in advance a driving time measured by the timer; And
A compressor control unit controls the on / off of the compressor according to the temperature value sensed by the storage compartment temperature sensor, and when the load is increased to increase the cooling power of the compressor to control the compressor to maintain the optimum operation rate. Refrigerator.
The operation rate is a refrigerator, characterized in that the ratio of the drive time of the compressor to the time the power of the refrigerator is turned on.
The storage room temperature sensor,
A refrigerator compartment temperature sensor to sense an internal temperature of the refrigerator compartment;
A freezer compartment temperature sensor for sensing an internal temperature of the freezer compartment; And
A refrigerator comprising an ice-making sensor for detecting the internal temperature of the ice-making device for producing ice.
And an external temperature sensor configured to sense an external temperature of the storage space, wherein the compressor controller controls the cooling power of the compressor to increase when the external temperature is increased.
The compressor control unit controls to increase the cooling power of the compressor when the operation time of the compressor to be operated by the increase of the load is greater than the driving time stored in the memory.
And the operating time of the compressor is until the temperature of the storage space reaches a preset temperature.
An outside temperature sensor to sense an outside temperature of the storage space;
A compressor in which on / off operation is repeated to cool the freezing compartment or the refrigerating compartment, and a predetermined optimum operation rate is defined;
A timer for measuring a running time of the compressor;
A memory for storing in advance a driving time measured by the timer; And
And a compressor control unit configured to control the compressor to be driven at the optimal operation rate by reducing the cooling power of the compressor when the external temperature sensed by the outside temperature sensor is reduced.
An inverter for supplying the operating frequency to the compressor is further included,
The compressor control unit reduces the operating frequency, in order to reduce the cooling power of the compressor, to supply a signal corresponding to the reduced frequency to the inverter.
Measuring the driving time of the compressor;
Storing the measured driving time in advance in the memory;
Detecting a load change in the storage compartment; And
If the operation time of the compressor is to be increased or decreased in accordance with the load change, increasing or decreasing the cooling power of the compressor in response to the driving time stored in the memory.
When the load of the storage compartment is increased, the control method of the refrigerator, characterized in that to maintain the optimum operating rate by increasing the cooling power of the compressor.
The compressor is repeatedly turned on and off,
And a time point at which the compressor is turned on is controlled according to an internal temperature of the storage compartment, and a time elapsed value of the compressor off state is controlled according to an external temperature of the storage compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100006895A KR20110087465A (en) | 2010-01-26 | 2010-01-26 | A refrigerator and a control method the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100006895A KR20110087465A (en) | 2010-01-26 | 2010-01-26 | A refrigerator and a control method the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20110087465A true KR20110087465A (en) | 2011-08-03 |
Family
ID=44926209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100006895A KR20110087465A (en) | 2010-01-26 | 2010-01-26 | A refrigerator and a control method the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20110087465A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900322A (en) * | 2012-12-28 | 2014-07-02 | 山东省商业集团有限公司 | Quick-freeze storage with magnetic field device and operation method of quick-freeze storage with magnetic field device |
| US20160195329A1 (en) * | 2015-01-05 | 2016-07-07 | Lg Electronics Inc. | Method for controlling refrigerator |
| KR20160109036A (en) * | 2015-03-09 | 2016-09-21 | 엘지전자 주식회사 | Refrigerator |
| KR20190093954A (en) | 2018-02-02 | 2019-08-12 | 엘지전자 주식회사 | Refrigerator and Control method of the same |
| KR20190106292A (en) | 2018-03-08 | 2019-09-18 | 엘지전자 주식회사 | Refrigerator system and Control method of the same |
| KR20190107355A (en) | 2018-03-12 | 2019-09-20 | 엘지전자 주식회사 | Refrigerator and Control method of the same |
| KR20190107899A (en) | 2018-03-13 | 2019-09-23 | 엘지전자 주식회사 | Refrigerator |
| WO2021045415A1 (en) * | 2019-09-03 | 2021-03-11 | Lg Electronics Inc. | Refrigerator and method of controlling the same |
| CN117469869A (en) * | 2023-12-26 | 2024-01-30 | 珠海格力电器股份有限公司 | Compressor control method and device and refrigerator |
-
2010
- 2010-01-26 KR KR1020100006895A patent/KR20110087465A/en not_active Application Discontinuation
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900322B (en) * | 2012-12-28 | 2016-06-22 | 山东省商业集团有限公司 | A kind of quick freezing repository with magnetic field device and operation method thereof |
| CN103900322A (en) * | 2012-12-28 | 2014-07-02 | 山东省商业集团有限公司 | Quick-freeze storage with magnetic field device and operation method of quick-freeze storage with magnetic field device |
| US10126046B2 (en) | 2015-01-05 | 2018-11-13 | Lg Electronics Inc. | Refrigerator and method for controlling the same |
| US20160195329A1 (en) * | 2015-01-05 | 2016-07-07 | Lg Electronics Inc. | Method for controlling refrigerator |
| US10113790B2 (en) * | 2015-01-05 | 2018-10-30 | Lg Electronics Inc. | Method for controlling refrigerator |
| US10145599B2 (en) | 2015-03-09 | 2018-12-04 | Lg Electronics Inc. | Refrigerator having a controller for executing a load match operation, and a control method thereof |
| KR20160109036A (en) * | 2015-03-09 | 2016-09-21 | 엘지전자 주식회사 | Refrigerator |
| KR20190093954A (en) | 2018-02-02 | 2019-08-12 | 엘지전자 주식회사 | Refrigerator and Control method of the same |
| KR20190106292A (en) | 2018-03-08 | 2019-09-18 | 엘지전자 주식회사 | Refrigerator system and Control method of the same |
| KR20190107355A (en) | 2018-03-12 | 2019-09-20 | 엘지전자 주식회사 | Refrigerator and Control method of the same |
| KR20190107899A (en) | 2018-03-13 | 2019-09-23 | 엘지전자 주식회사 | Refrigerator |
| WO2021045415A1 (en) * | 2019-09-03 | 2021-03-11 | Lg Electronics Inc. | Refrigerator and method of controlling the same |
| CN117469869A (en) * | 2023-12-26 | 2024-01-30 | 珠海格力电器股份有限公司 | Compressor control method and device and refrigerator |
| CN117469869B (en) * | 2023-12-26 | 2024-03-19 | 珠海格力电器股份有限公司 | Compressor control method and device and refrigerator |
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