KR-20260063249-A - REFRIGERATOR

Abstract

A refrigerator according to one embodiment may include a cabinet in which a first storage room and a second storage room are formed, an evaporator disposed on one side of the second storage room, and a grill fan assembly disposed between the second storage room and the evaporator and supplying cold air generated by the evaporator into the second storage room. In one embodiment, the grill fan assembly may include a shroud having a first inlet and a second inlet through which cold air generated by the evaporator flows in, a grill fan coupled to the front of the shroud and having a first discharge port and a second discharge port that discharges cold air generated by the evaporator into the second storage room, a first blower fan disposed at a position corresponding to the first inlet port, and a second blower fan disposed at a position corresponding to the second inlet port.

Inventors

• 임형근
• 이재덕

Assignees

• 엘지전자 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A cabinet in which a first storage room and a second storage room are formed; An evaporator disposed on one side of the second storage room; and It includes a grill fan assembly disposed between the second storage room and the evaporator and supplying cold air generated by the evaporator into the second storage room, The above grill pan assembly is A shroud comprising a first inlet port and a second inlet port into which cold air generated by the above-mentioned evaporator is introduced; A grill pan coupled to the front of the above shroud and comprising a first discharge port and a second discharge port for discharging cold air generated by the above evaporator into the second storage chamber; A first blower fan positioned at a location corresponding to the first inlet hole; and A second blower fan positioned at a location corresponding to the second inlet hole. refrigerator.
2. In paragraph 1, The above shroud A first rib and a second rib disposed around the first inlet hole and forming a first cold air path; and including a third rib and a fourth rib disposed around the second inlet hole and forming a second cold air flow path. refrigerator.
3. In paragraph 2, The first rib, the second rib, the third rib, or the fourth rib is It includes a first sub-rib and a second sub-rib connected at a predetermined connection angle at a bent portion, At least a portion of the first sub-rib and the second sub-rib is formed in a curved shape having a predetermined curvature. refrigerator.
4. In paragraph 3, When viewed from the first cold air channel or the second cold air channel, the connection angle between the first sub-rib and the second sub-rib is an obtuse angle. refrigerator.
5. In paragraph 3, The bent portion of the first rib and the bent portion of the second rib are arranged at different heights with respect to the center point of the first inlet hole. refrigerator.
6. In paragraph 3, The bent portion of the third rib and the bent portion of the fourth rib are arranged at different heights with respect to the center point of the second inlet hole. refrigerator.
7. In paragraph 2, The above shroud A first extension channel communicating with the above-mentioned first cold air channel; and A second extension channel further comprising a second cold air channel connected to the above-mentioned second cold air channel. refrigerator.
8. In Paragraph 7, The cold air flowing into the first cold air channel is guided by the second sub-rib of the first rib and the second sub-rib of the second rib and moves to the first extended channel. refrigerator.
9. In Paragraph 7, The cold air flowing into the second cold air channel is guided by the second sub-rib of the third rib and the second sub-rib of the fourth rib and moves to the second extended channel. refrigerator.
10. In Paragraph 7, The width of the first extended channel is narrower than the width of the first cold channel, and The width of the second extended channel is narrower than the width of the second cold channel. refrigerator.
11. In paragraph 2, The above first discharge port is A first upper discharge port and a first intermediate discharge port positioned at a location corresponding to the first cold air flow path; and It includes a first lower discharge port formed at the end of a first extended channel communicating with the first cold air channel, and The above second discharge port is A second upper discharge port and a second intermediate discharge port positioned at a location corresponding to the second cold air flow path; and A second lower discharge port formed at the end of a second extended channel communicating with the second cold air channel. refrigerator.
12. In Paragraph 11, The above grill pan is It further includes a damper connection portion formed at a position corresponding to the above-mentioned cold air discharge port, to which a damper for supplying cold air to the first storage chamber can be connected. refrigerator.
13. In paragraph 1, The above grill pan is A cold air receiving portion in which the first blower fan and the second blower fan are accommodated; and The first extension and the second extension are further formed at positions corresponding to the first extension channel and the second extension channel formed in the shroud, respectively, and are connected to the cold receiving portion. refrigerator.
14. In Paragraph 13, The first extension or the second extension is positioned to protrude further forward than the cold receiving portion. refrigerator.
15. In Paragraph 13, The first extension or the second extension is arranged parallel to the cold receiving portion. refrigerator.
16. In Paragraph 13, The above cold receiving portion is positioned at a predetermined angle with respect to the first extension or the second extension. refrigerator.
17. In Paragraph 13, The first extension or the second extension is positioned in the same plane as the cold receiving portion. refrigerator.
18. In paragraph 1, The first blower fan or the second blower fan is arranged parallel to the grill fan. refrigerator.
19. In paragraph 1, The first blower fan or the second blower fan is positioned at a predetermined angle with respect to the grill fan. refrigerator.
20. In paragraph 1, The above grill pan is Grill pan plate; and Further including a suction guide connected to the grill pan plate in a direction facing forward of the grill pan plate to form a suction space. refrigerator.

Description

Refrigerator This specification relates to 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. A refrigerator includes an evaporator, which is a device for generating cold air. The cold air generated by the evaporator can be supplied into the storage compartment by a blower fan. Korean Patent Publication No. 10-2021-0072573 discloses the structure and function of a grill fan assembly for supplying cold air generated by the evaporator into the storage compartment. According to the prior art, the grill fan assembly supplies cold air generated by the evaporator into the storage room through a single blower fan positioned in the center of the grill fan assembly. However, the size of the blower fan positioned in the center of the grill fan assembly is small compared to the size of the evaporator. Therefore, there is a problem in that the cold air generated by the evaporator cannot be evenly supplied into the storage room with only one blower fan. In addition, according to the prior art, since cold air cannot flow sufficiently within the grill fan assembly by means of a single blower fan, some of the cold air generated by the evaporator cannot be supplied into the storage room and flows within the grill fan assembly, resulting in a problem of cold air loss. Furthermore, according to conventional technology, some of the cold air generated by the evaporator is not rapidly supplied into the storage chamber, and the cold air flowing inside the storage chamber is not rapidly drawn into the evaporator. Consequently, heat exchange due to cold air circulation does not occur rapidly, leading to a problem where the cooling efficiency of the refrigerator is reduced. 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 front cross-sectional view of a refrigerator according to one embodiment. FIG. 4 is a side cross-sectional view of a refrigerator according to one embodiment. FIG. 5 is an exploded perspective view of a grill pan assembly according to one embodiment. FIG. 6 is a front view of a grill pan included in a grill pan assembly according to one embodiment. FIG. 7 is a front view of a shroud included in a grill pan assembly according to one embodiment. FIG. 8 is a side cross-sectional view of a grill pan assembly according to one embodiment. FIG. 9 is an exploded perspective view of a grill pan assembly according to another embodiment. FIG. 10 is a front view of a grill pan included in a grill pan assembly according to another embodiment. FIG. 11 is a front view of a shroud included in a grill pan assembly according to another embodiment. FIG. 12 is a perspective view of a grill pan assembly according to another embodiment. FIG. 13 is a side cross-sectional view of the grill pan assembly illustrated in FIG. 12. FIG. 14 is a perspective view of a grill pan assembly according to another embodiment. FIG. 15 is a side cross-sectional view of the grill pan assembly illustrated in FIG. 14. 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 acco