KR19990020183U - Refrigerator room air curtain device - Google Patents

Abstract

The present invention relates to a refrigerator compartment air curtain device of a refrigerator, and the conventional refrigerator compartment air curtain device was formed to form an air curtain by injecting cold air from the upper part of the front side of the refrigerator compartment through a rather long path. There is a problem that the injection pressure falls to the bottom of the refrigerating chamber, which causes a problem that the external warm air flows into the interior through the weak both sides of the weak air curtain.

In order to solve this problem, a separate rather short length air curtain duct is formed in the lower part of Yumyeong installed in the upper part of the refrigerating chamber, and interlocked with the refrigerator door switch of the refrigerator to adjust the direction of cold air in the adjacent front of the air curtain fan. It is equipped with a damper that operates according to the on / off of the door switch.When opening the refrigerating compartment door, cold air is forcibly guided through a rather short duct formed separately to form a refrigerating compartment air curtain. The cold air is forcibly induced to ride and concentrate cooling the door compartment of the refrigerator compartment for a predetermined time.

Description

Refrigerator room air curtain device

The present invention relates to a refrigerator air curtain device of a refrigerator, and more particularly, to form an air curtain on the front side of the refrigerator compartment for a predetermined time not only when the refrigerator door is opened but also after the door is closed through a rather long path and a relatively short path. It relates to a refrigerator compartment air curtain device of the refrigerator.

As shown in FIG. 1, the air curtain device of a general refrigerator refrigerating compartment is located at the rear of the trimming unit 10 that separates and separates the freezer compartment and the refrigerating chamber R, and the door of the refrigerator along the lower surface of the trimming unit 10. The air curtain duct 12 in which the cold air discharge port 14 is formed toward the pocket is gradually narrowed, and a slightly wider space is formed at the rear end of the air curtain duct 12, and within the space. The air curtain fan 16 is installed.

The refrigerator compartment air curtain device of the refrigerator having such a structure is sucked into the cold air intake port 20 in which a large number of cold air in the refrigerating compartment R is formed on the rear side of the refrigerating compartment by the air curtain fan 16 which is operated at the moment when the refrigerating compartment door is opened. The air curtain duct 12 formed on the upper side of the refrigerating chamber is moved rapidly through the cold air outlet 14 formed at the tip thereof, thereby forming an air curtain on the front side of the refrigerating compartment to block the inflow of external warmth.

However, since the refrigerator compartment air curtain device of the conventional refrigerator is configured to form an air curtain while cooling air is injected from the upper part of the front side of the refrigerator compartment through a rather long path, there is a problem that the cold air injection pressure drops and reaches the bottom of the refrigerator compartment. There was a problem that the external warm air flows into the air through the weak sides of the weak air curtain.

The present invention has been made to solve the above problems in consideration of the above-mentioned problems, the circulation path of the cold air discharged at the opening of the refrigerating compartment door and the circulation path for discharging the cold air for a predetermined time after the door is closed in the opening or closing of the refrigerating compartment door Accordingly, the technical problem is to provide an air curtain device that can be selectively changed to form an air curtain on the front side of the refrigerator compartment.

1 is a side cross-sectional view of a door detachment state of a refrigerator showing an air curtain device by a refrigerator compartment air curtain device of a conventional refrigerator;

Figure 2 is a side cross-sectional view of the door detached state of the refrigerator employing a refrigerator compartment air curtain device of the refrigerator according to the present invention,

Figure 3 is a perspective view of the upper section of the refrigerator compartment showing the subject innovation air curtain device.

Explanation of symbols on the main parts of the drawings

10 ..... Thread 12 ... Duct for air curtain

14 ..... Cold air outlet 16 ..... Fan for air curtain

20 ..... cold air intake 30 ..... 6 people

60 ..... cold air duct 66 ..... cold air jet

80 ..... Electric damper 82 ..... Damper flap

In order to realize the above technical problem, the present invention provides a fan for an air curtain installed at an upper rear side of a refrigerating compartment to forcibly induce cold air and a passage through which a cold air forced by the fan is discharged to the front side of the refrigerating compartment. An air curtain device comprising an air curtain duct installed in an adjacent lower part, comprising: a cold air duct separately formed on an upper side of a refrigerating chamber so as to have a circulation path that is relatively shorter than the air curtain duct, and a refrigerator to open and close the air curtain duct It is installed at the rear end of the six characterized in that it consists of an electromagnetic damper to selectively guide the cold air discharged by the fan for the air curtain to only one duct.

Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in more detail.

2 is a side cross-sectional view of a refrigerator compartment of a refrigerator equipped with a refrigerator compartment air curtain device according to the present invention, and FIG. 3 is a perspective view of the refrigerator compartment cutaway to illustrate the air curtain device of the present invention.

2 to 3, a separate cold air guide duct 60 having a relatively short cold air circulation path in addition to the air curtain duct 12 constituting the conventional refrigerator compartment air curtain device is lower than the sixty (30) Installed in

That is, the aforementioned cold air duct 60 is formed in the inlet side of the front adjacent to the air curtain fan 16 is installed, the outlet side of the rear end surface of the six people 30 so as to be formed in the lower end of the six people 30 and The air curtain duct 12 and the cold air duct 60 are formed to communicate with each other by being spaced apart from the bottom surface.

In addition, an electromagnetic damper 80 is installed between the rear end surface of the six air 30 on the inlet side of the cold air duct 60 and the cold air duct 60, and the damper flap 82 of the electromagnetic damper 80. It is designed to operate up and down, and is formed to extend in the transverse direction so that the air curtain duct 12 can be retractably moved forward and backward.

In addition, the electromagnetic damper 80 is installed to interlock with a refrigerator door switch (not shown) of the refrigerator, and when the refrigerator door 18 is opened, the damper flap 82 is up to provide an air curtain duct 12. When the refrigerating compartment door 18 is closed, the damper flap 82 is down to open the air curtain duct 12.

Meanwhile, the air curtain fan 16 is controlled by the control unit of the refrigerator. In the related art, the air curtain fan 16 is rotated until the door 18 is closed only when the refrigerating compartment door 18 is opened, and then the door 18 is closed. At the same time, the rotation was stopped, but in the present invention, when the door 18 is opened, it is rotated in the same manner as before, and is set to be turned off after being rotated for about one more minute for about 30 seconds after the door 18 is closed.

On the outlet side of the cold air duct 60, a plurality of cold air jet holes 66 are formed at a predetermined interval in the lateral direction.

In the refrigerator compartment air curtain device of the present invention having such a configuration, when the user opens the refrigerator compartment door 18, the electronic damper 80 and the air curtain fan 16 connected to the control unit to operate in conjunction with the refrigerator compartment door switch operates. Done.

Therefore, the damper flap 82 of the electromagnetic damper 80 installed on the inlet side of the cold air duct duct 60 formed separately from the air curtain duct 12 is raised, thereby closing the air curtain duct 12. The cold air forcibly induced by the curtain fan 16 is sucked into the inlet side of the cold air duct 60 formed by a rather short circulation path, and is strongly sprayed downward through the cold air inlet 66 on the outlet side.

Therefore, the injection pressure of cold air forcedly guided along the relatively short circulation flow path is higher than when it is injected through the air curtain duct 12, and is also injected downward from the uppermost closest position of the shelf to suppress the inflow of outside air. The effect is higher.

Meanwhile, when the refrigerating compartment door 18 is closed, the electromagnetic damper 80 is operated at the same time, and the damper flap 82 is lowered to open the air curtain duct 12, thereby discharging from the air curtain fan 16. Most of the cold air is forced through the air curtain duct 12 to intensively cool the door pocket 22 portion which has risen in temperature when the door 18 is opened for a predetermined time.

Thereafter, when about 30 seconds to 1 minute has elapsed, the air curtain fan 16 is automatically turned off by the control signal of the controller.

Accordingly, while the door pocket 22 is cooled in a short time, the internal temperature of the refrigerator may be rapidly changed by cold stirring inside the refrigerating chamber.

As described above, the refrigerator compartment air curtain device of the refrigerator according to the present invention is formed in a double path unlike the conventional refrigerator compartment air curtain, which is formed through a single path formed somewhat longer, and selectively refrigerating compartment air according to opening and closing of the door. By forming a curtain, the effect of blocking the inflow of outside air into the air is increased to prevent excessive destruction of the cooling balance in the air, and the air curtain fan is driven for a predetermined time even after the refrigerating door is closed, thereby allowing the internal temperature to be kept warm for a short time. Since it can proceed, there is an advantage to achieve an improved refrigerator compartment cooling environment.

Claims (5)

Air curtain fan 16 installed in the upper rear of the refrigerating compartment to induce cold air in the refrigerator, and air curtain duct 12 installed in the lower portion adjacent to the trimming section 10 to guide the cold air forced by the fan 16. In the refrigerator compartment air curtain device of the refrigerator, The cold air duct duct (60) formed separately in the upper side of the refrigerating chamber so as to have a circulation path relatively shorter than the air curtain duct (12) and the air curtain duct (12) at the rear end of the refrigerator (30) to open and close Refrigerator compartment air curtain device of the refrigerator, characterized in that it consists of an electromagnetic damper (80) to selectively guide the cold air discharged by the air curtain fan (16) to only one duct. According to claim 1, The cold air guide duct 60 is drawn out to the lower end of the six people 30 at intervals outside the rear end surface and the bottom surface of the six people 30 so that the inlet side of the air curtain duct Refrigerating room air curtain device characterized in that it is formed so as to communicate with (12). The damper flap (82) of the damper (80) is raised when the refrigerator door (18) is opened to close the air curtain duct (12), and lowered when the refrigerator door (18) is closed. Refrigerating room air curtain device, characterized in that to open the air curtain duct (12). The refrigerator of claim 1, wherein the electromagnetic damper (80) is installed in conjunction with a refrigerator door switch. The refrigerator of claim 1, wherein the air curtain fan (16) is installed to be turned off after 30 to 60 seconds after closing the refrigerating compartment door (18).