KR-20260063248-A - REFRIGERATOR AND METHO FOR CONTROLLING REFRIGERATOR

Abstract

The present specification relates to a refrigerator and a method for controlling a refrigerator. A refrigerator according to one embodiment may include a storage room comprising a first storage space and a second storage space, a compressor that compresses a refrigerant and discharges the compressed refrigerant, a first door that opens and closes the first storage space, a second door that opens and closes the second storage space, an evaporator disposed on one side of the storage room and generating cold air using the refrigerant, a first blower fan disposed in the first storage space and introducing the cold air into the storage room, a second blower fan disposed in the second storage space and introducing the cold air into the storage room, the compressor, and a controller that controls the operation of the first blower fan and the second blower fan.

Inventors

• 임형근
• 이재덕

Assignees

• 엘지전자 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A storage room including a first storage space and a second storage space; A compressor that compresses refrigerant and discharges the compressed refrigerant; A first door for opening and closing the first storage space; A second door for opening and closing the second storage space; An evaporator disposed on one side of the storage room and generating cold air using the refrigerant; A first blower fan positioned in the first storage space and introducing the cold air into the storage room; A second blower fan disposed in the second storage space and introducing the cold air into the storage room; and It includes a controller that controls the operation of the compressor, the first blower fan, and the second blower fan, and The above controller When the temperature of the storage room is above a predetermined first reference temperature value and the opening of the first door is detected, the compressor is driven and the first blower fan is driven at a predetermined first speed; when it is determined that a predetermined first deceleration condition is satisfied, the speed of the first blower fan is decelerated to a predetermined second speed while the second blower fan is driven at the second speed; and when the temperature of the storage room is below a predetermined fourth reference temperature value, the operation of the compressor, the first blower fan, and the second blower fan is terminated. refrigerator.
2. In paragraph 1, The above controller When the driving time of the first blower fan exceeds a predetermined first reference time, it is determined that the first deceleration condition is satisfied. refrigerator.
3. In paragraph 1, The above controller If the temperature of the first storage space is less than a predetermined second reference temperature value, it is determined that the first deceleration condition is satisfied. refrigerator.
4. In paragraph 1, The above controller If the temperature of the second storage space is greater than or equal to a predetermined third reference temperature value, it is determined that the first deceleration condition is satisfied. refrigerator.
5. In paragraph 1, The above controller When the opening of the second door is detected after the opening of the first door is detected, the second blower fan is driven at the first speed. refrigerator.
6. In paragraph 5, The above controller When it is determined that a predetermined second deceleration condition is satisfied, the speed of at least one of the first blower fan and the second blower fan is decelerated to the second speed. refrigerator.
7. In paragraph 6, The above controller When the driving time of the first blower fan or the driving time of the second blower fan exceeds a predetermined first reference time, it is determined that the second deceleration condition is satisfied. refrigerator.
8. In paragraph 6, The above controller If the temperature of the second storage space is less than a predetermined second reference temperature value, it is determined that the second deceleration condition is satisfied. refrigerator.
9. A method for controlling a refrigerator comprising: a storage room including a first storage space and a second storage space; a compressor for compressing a refrigerant and discharging the compressed refrigerant; a first door for opening and closing the first storage space; a second door for opening and closing the second storage space; an evaporator disposed on one side of the storage room and generating cold air using the refrigerant; a first blower fan disposed in the first storage space and introducing the cold air into the storage room; a second blower fan disposed in the second storage space and introducing the cold air into the storage room; the compressor; and a controller for controlling the operation of the first blower fan and the second blower fan. A step of driving the compressor when the temperature of the storage room is above a predetermined first reference temperature value and the opening of the first door is detected; A step of driving the first blower fan at a predetermined first speed; When it is determined that a predetermined first deceleration condition is satisfied, a step of decelerating the speed of the first blower fan to a predetermined second speed while driving the second blower fan at the second speed; and The method includes the step of terminating the operation of the compressor, the first blower fan, and the second blower fan if the temperature of the first storage space is below a predetermined fourth reference temperature value. Refrigerator control method.
10. In Paragraph 9, When the driving time of the first blower fan exceeds a predetermined first reference time, it is determined that the first deceleration condition is satisfied. Refrigerator control method.
11. In Paragraph 9, If the temperature of the first storage space is less than a predetermined second reference temperature value, it is determined that the first deceleration condition is satisfied. Refrigerator control method.
12. In Paragraph 9, If the temperature of the second storage space is greater than or equal to a predetermined third reference temperature value, it is determined that the first deceleration condition is satisfied. Refrigerator control method.
13. In Paragraph 9, The method further includes the step of driving the second blower fan at the first speed when the opening of the second door is detected after the opening of the first door is detected. Refrigerator control method.
14. In Paragraph 13, The method further includes the step of reducing the speed of the second blower fan to the second speed when it is determined that a predetermined second deceleration condition is satisfied. Refrigerator control method.
15. In Paragraph 14, When the driving time of the first blower fan or the driving time of the second blower fan exceeds a predetermined first reference time, it is determined that the second deceleration condition is satisfied. Refrigerator control method.
16. In Paragraph 14, If the temperature of the second storage space is below a predetermined second reference temperature value, it is determined that the second deceleration condition is satisfied. Refrigerator control method.
17. A storage room including a first storage space and a second storage space; A compressor that compresses refrigerant and discharges the compressed refrigerant; A first door for opening and closing the first storage space; A second door for opening and closing the second storage space; An evaporator disposed on one side of the storage room and generating cold air using the refrigerant; A first blower fan positioned in the first storage space and introducing the cold air into the storage room; A second blower fan disposed in the second storage space and introducing the cold air into the storage room; and It includes a controller that controls the operation of the compressor, the first blower fan, and the second blower fan, and The above controller If the temperature of the storage room is above a predetermined first reference temperature value, the compressor is driven, and a blower fan corresponding to the storage space having a higher temperature among the first storage space and the second storage space is driven at the first speed, and a blower fan corresponding to the storage space having a lower temperature among the first storage space and the second storage space is driven at the second speed, and if it is determined that a predetermined deceleration condition is satisfied, the speed of the blower fan driven at the first speed is decelerated to the second speed, and if the temperature of the storage room is below a predetermined second reference temperature value, the operation of the compressor, the first blower fan, and the second blower fan is terminated. refrigerator.
18. In Paragraph 17, The above controller When the driving time of the blower fan driven at the first speed exceeds a predetermined first reference time, it is determined that the deceleration condition is satisfied. refrigerator.
19. In Paragraph 17, The above controller If the temperature of the storage space having a higher temperature than the above becomes lower than the temperature of the storage space having a lower temperature than the above, it is determined that the deceleration condition is satisfied. refrigerator.
20. In Paragraph 17, The above controller If the temperature of the first storage space and the temperature of the second storage space are the same, the compressor is driven, and the first blower fan and the second blower fan are driven at the same speed, respectively, and if the temperature of the storage room is below the second reference temperature value, the operation of the compressor, the first blower fan, and the second blower fan is terminated. refrigerator.

Description

Refrigerator and Method for Controlling Refrigerator This specification relates to a refrigerator and a method for controlling a refrigerator. A refrigerator is a home appliance that stores food for a long time using cold air generated by the circulation of refrigerant according to a refrigeration cycle. A refrigerator includes one or more storage compartments for storing items in a refrigerated or frozen state. Each storage compartment may be opened and closed by a rotary door or may be pulled out as a drawer. The storage compartments may include a freezer compartment for frozen storage of items and a refrigerator compartment for refrigerated storage of items. During the operation of the refrigerator, if the temperature inside the storage compartment rises above a certain temperature, cold air generated by the evaporator is supplied into the storage compartment by a blower fan, thereby cooling the inside of the storage compartment. Korean Published Patent Application No. 10-2014-0097860 discloses a method of operating a refrigerator equipped with one blower fan. A refrigerator may include a door that opens and closes the storage compartment. A double-door refrigerator may include two doors that are hinged to each side of the cabinet to open and close the left and right spaces of the storage compartment. According to the prior art, when one of the doors of a double-door refrigerator is opened and the temperature inside the storage compartment rises, a compressor and a blower fan are driven to cool the inside of the storage compartment. According to this control method, a phenomenon occurs in which high-temperature air from the storage space corresponding to the open door (e.g., left door) (e.g., left storage space) flows into the storage space corresponding to the unopened door (e.g., right door) (e.g., right storage space) by driving the blower fan. This results in a problem where the time and power required to cool the entire storage compartment increase. FIG. 1 is a perspective view showing the exterior of a refrigerator according to one embodiment. FIG. 2 is a perspective view showing the internal structure of a refrigerator according to one embodiment. FIG. 3 is a side longitudinal section view of a refrigerator according to one embodiment. FIG. 4 is an exploded perspective view of a grill pan assembly according to one embodiment. FIG. 5 is a front view of a grill pan included in a grill pan assembly according to one embodiment. FIG. 6 is a front view of a shroud included in a grill pan assembly according to one embodiment. FIG. 7 is a side longitudinal section view of a grill pan assembly according to one embodiment. FIG. 8 is a side longitudinal section view of a grill pan assembly according to another embodiment. FIG. 9 is a side longitudinal section view of a grill pan assembly according to another embodiment. FIG. 10 schematically shows the configuration of a refrigerator according to one embodiment. FIGS. 11 and FIGS. 12 are flowcharts illustrating a control method for a refrigerator according to one embodiment. FIGS. 13 to 15 are flowcharts illustrating a control method for a refrigerator according to another embodiment. FIG. 16 shows the flow rate of cold air measured at each front cross-section of a grill fan assembly equipped with one blower fan. Figure 17 shows the flow rate of cold air measured at each front cross-section of a grill fan assembly equipped with two blower fans. FIG. 18 shows the flow rate of cold air measured at each side cross-section of a grill fan assembly equipped with one blower fan. FIG. 19 shows the flow rate of cold air measured at each side cross-section of a grill fan assembly equipped with two blower fans. The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, and accordingly, a person skilled in the art to which this specification pertains will be able to easily implement the embodiments of this specification. In describing this specification, detailed descriptions of known technologies related to this specification are omitted if it is determined that such descriptions would unnecessarily obscure the gist of this specification. Hereinafter, preferred embodiments of this specification will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals indicate the same or similar components. FIG. 1 is a perspective view showing the exterior of a refrigerator according to one embodiment. FIG. 2 is a perspective view showing the internal structure of a refrigerator according to one embodiment. FIG. 3 is a side longitudinal section view of a refrigerator according to one embodiment. A refrigerator according to one embodiment may include a cabinet (10). A first storage room (11) and a second storage room (12) may be formed inside the cabinet (10). In one embodiment, the first storage room (11) may be a refrigerator room where the stored items are kept