KR0121945Y1 - Coldair discharge control apparauts of refrigerator - Google Patents

Abstract

The present invention relates to a cold air discharge control device that can be refrigerated by maintaining the temperature range according to the characteristics of the food stored in each refrigerator compartment space divided by the multi-stage shelves of the refrigerator compartment, the cold air outlet formed on the inner wall of the freezer compartment and the refrigerator compartment A cold air discharge control apparatus for a refrigerator having a damper installed inside of the refrigerator and configured to open and close the cold air discharge port by a sensor for detecting a temperature in a refrigerator, the refrigerator comprising: at least two dampers mounted on the inner wall to open and close the cold air discharge port; Damper driving means mounted to the damper for driving the damper in accordance with the temperature detection of the temperature sensor, and damper position sensing means for controlling the damper driving means by detecting the movement of the damper is installed on the inner wall on both sides of the damper To provide a cold air discharge control device of the refrigerator characterized in that (FIG. 1)

Description

Cold air discharge controller

1 is an exploded perspective view showing the main portion of the cold air discharge control device of the refrigerator according to the present invention.

2 is an enlarged perspective view illustrating main parts of a cold air discharge control apparatus of a refrigerator according to the present invention;

Figure 3 is a rear view showing an operating state of the cold air discharge control device of the refrigerator according to the present invention.

4 is an enlarged view of a portion A of FIG. 3 (a).

* Explanation of symbols for main parts of the drawings

10: inside wall of the refrigerating chamber 12: cold air discharge port

Guide 14: Supporting Boss

20: damper 22: through hole

24: door lever 26: extension member

26a: Rack 30: Drive motor

32: Pinion 40, 40A: Micro switch

The present invention relates to a cold air discharge control device of the refrigerator, and more specifically, the space independently desired temperature range according to the type of refrigerated food (food) stored in each refrigerator compartment space partitioned by a multi-stage shelf in the refrigerator compartment It relates to a cold air discharge control device for controlling the amount of cold air to be maintained by refrigeration.

In general, the refrigerator can store food freshly by keeping the inside of the freezer at a freezing temperature for a long time to store the storage and a relatively cold temperature range (0˚C-20˚C) to maintain the proper temperature range depending on the food. Each refrigerator compartment is installed.

Such a freezer compartment and a refrigerating compartment are provided with a cold air supply passage connected to a duct on the inner wall of the refrigerator, and the cold air generated in the evaporator is supplied to each of the freezer compartment and the refrigerating compartment along the duct by a blower fan. The damper (Damper) for keeping the room temperature in the set temperature range by adjusting to the built-in.

The damper is installed inside the cold air outlet provided on the inner wall of the freezer compartment and the refrigerating compartment to be controlled according to the temperature sensed by a temperature sensor for sensing the current temperature in the refrigerator. However, in the case of the damper which controls the discharge amount of the cold air and maintains the temperature in the refrigerator in the set temperature range, the cold air discharge port is provided at an appropriate position on the inner wall so that the cold air is uniformly distributed in the refrigerator or freezer compartment. The surrounding area adjacent to the discharge port is affected by the coldest cold air because the supply of cold air is relatively fast, but the distance away from the cold air discharge port is relatively high, causing unbalance of temperature.

Therefore, foods stored adjacent to the cold air outlet are excessively refrigerated and frozen, or conversely, food placed at a location far from the cold air outlet may have a low cooling effect and may cause food to deteriorate.

It is most preferable to store various kinds of foods stored in the refrigerator, especially in the refrigerator compartment, under conditions suitable for the characteristics of the food. However, in the conventional refrigerator, the temperature of the entire refrigerator compartment is controlled by the cold air discharged from one cold air outlet. It is highly desirable if the user can store various kinds of foods stored at optimum temperature conditions according to their characteristics. After all, in order to expect the most effective refrigeration effect, if the temperature in the refrigerator is adjusted according to the characteristics of the food placed on the shelves installed in the refrigerator, the inner space of each shelf installed to be separated into the multi-stage is suitable for the storage conditions There is a demand for a cold air discharge control device capable of controlling the discharge amount of cold air to independently adjust the temperature range.

Therefore, the present invention optimizes the storage conditions of the foods that are stored by supplying cold air independently into each shelf so that they can be kept at a temperature suitable for the specific foods placed on the shelves installed in multiple stages in the refrigerator compartment. It has been devised a cold air discharge device that can be stored under the conditions of.

An object of the present invention is to provide an appropriate temperature according to different kinds of storage conditions (temperature ranges), such as a kind of food placed on a shelf installed in a refrigerator, particularly a refrigerator, for example, vegetables, cooked food, side dishes or fish. It is to provide a cold air discharge device that can control the discharge amount of the cold air flowing into the respective inner space of the shelf to maintain and store.

Another object of the present invention is to provide a cold air discharging device that allows the user to selectively store the indoor space partitioned by each shelf installed in the refrigerating compartment according to the storage conditions of the food to keep the food in a fresher state. have.

In the above-described object of the present invention, in the cold air discharge control apparatus of the refrigerator provided with a damper which is installed inside the cold air outlet formed on the inner wall of the freezer compartment and the refrigerating compartment to open and close the cold air outlet by a sensor for detecting the temperature in the refrigerator. At least two dampers mounted on the inner wall to open and close the cold air discharge port, damper driving means mounted on the damper to drive the damper according to the temperature detection of the temperature sensing sensor, and installed on the inner wall to both sides of the damper. It is achieved by providing a cold air discharge control device of the refrigerator characterized in that it comprises a damper position sensing means for detecting the movement of the damper to control the damper drive means.

According to a preferred feature of the present invention, the damper drive means includes a drive motor driven in both directions, a pinion formed on the shaft of the drive motor, and a rack formed at one end of the damper to engage the pinion.

Another desirable feature of the present invention is that the damper position detecting means has a micro switch operated in contact with the damper to control the drive motor.

Another desirable feature of the present invention is that the micro switch is installed at a position where the damper can contact the damper only when the damper completely opens and closes the cold air discharge port.

Hereinafter, a cold air discharge control apparatus for a refrigerator according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view partially showing only a main part of the refrigerator to which the cold air discharge control device of the present invention is applied, and the cold air discharge control device is largely penetrated at a predetermined position of the inner wall 10 to discharge cold air in ancient times. ), A damper 20 for selectively opening and closing the cold air discharge port 12, driving means for moving the damper 20, and sensing the movement of the damper 20 to control the operation of the driving means. The damper 20 is configured to sense the movement of the damper 20 is configured to control the operation of the drive means.

The damper 20 is formed as a door lever 24 and an extension part 26. The door lever 24 is formed with a through hole 22 selectively communicating with the cold air discharge port 12. The rack 26a is formed on one surface of the extension member 26 by a predetermined length. The damper 20 is inserted into the guide 14 formed to face the interval of the height of the damper 20 to the inner surface of the inner wall 10 of the refrigerating chamber is coupled to the slide moveable.

In the present invention as a driving means of the damper 20 has been described by way of example to apply a motor operated by a power source. The drive motor 30 has a pinion 32 formed on the drive shaft of the drive motor 30 engaged with the rack 26a described above, and has a pair of supports projecting in a direction perpendicular to the inner surface of the inner wall 10. To the boss 16. Although not shown in the drawing, the driving motor 30 is controlled by a temperature sensor that detects a temperature of a refrigerating chamber. The drive motor 30 compares and outputs the room temperature detected by the temperature sensor by a pre-programmed microcomputer. Forward and reverse rotation is performed by the signal.

The damper 20 position sensing means is the drive when the damper 20 is moved by the drive motor 30 so that the cold air discharge port 12 and the through-hole 22 coincide with the cold air into the refrigeration stall, the drive In order to fix the operation of the motor 30, as an example of the position sensing means, the micro switch 40 is mounted on the inner wall 10 on both sides of the damper 20, and the through hole 22 is a cold air discharge port ( At the point coincided with 12), the door lever 24 touches the micro switch 40 to stop the operation of the driving motor 30.

When described in detail with reference to Figure 3 the effect of the cold air discharge control device of another refrigerator in the present invention made as described above.

3 is a front view of the inside of the inner wall 10 in which the cold air discharge control apparatus of the refrigerator according to the present invention is installed, and FIG. 3A is a through-hole 22 of the damper 20 and a refrigerating compartment to block the inflow of cold air into the refrigerating compartment. FIG. 3 is a view illustrating a state in which the cold air discharge port 12 is closed due to misalignment of the cold air discharge port 12 of the inner wall 10. FIG. 3B illustrates through holes 22 of the cold air discharge port 12 and the damper 20. FIG. ) Is in communication with the cold air is supplied to the refrigerating chamber.

First, when the temperature of the refrigerating chamber is set by a commercial user, when the set value is determined to be less than the set temperature range by judging the setting value with the temperature sensed by the temperature sensor, the microcomputer signals the drive motor 30 to operate. The drive motor 30 is rotated in the clockwise direction to output the damper 20 integrally formed with the rack 26a engaged with the pinion 32 to move in the horizontal direction.

Therefore, the through hole 22 formed in the door lever 24 is displaced from the cold air discharge port 12 to block the inflow of cold air into the refrigerating chamber. In this case, when the driving motor 30 is rotated to move the damper 20, but the damper 20 is positioned at a point where the cold air outlet 12 is completely closed, the damper 20 is a micro switch 40. The operation of the driving motor 30 is stopped at the moment of touching () (shown in FIG. 3A).

On the contrary, when the temperature of the refrigerating chamber is greater than or equal to the temperature range set by the user, the drive motor 30 is rotated counterclockwise by outputting a signal such that the above-described driving motor 30 is reversed by the microcomputer. . Accordingly, the damper 20 integrally formed with the rack 26a engaged with the pinion 32 of the driving motor 30 which is reversely rotated is guided by the guide 14, and the through hole 22 is connected to the cold air discharge port 12. ) Will be opened to allow cold air to enter the fridge.

At this time, the drive motor 30 is rotated so that the damper 20 is transferred, but the damper 20 is another micro switch 40A at a point where the cold air discharge port 12 and the through hole 22 substantially coincide with each other. The operation of the driving motor 30 is stopped by touching it (shown in FIG. 3B).

Therefore, the cold air discharge control apparatus of the refrigerator according to the present invention can expect the effective refrigeration effect by maintaining each space partitioned by the shelf in the refrigerator compartment of the refrigerator at the optimum temperature conditions for the refrigeration conditions of the food.

Claims (4)

A cold air discharge control apparatus of a refrigerator having a damper which is provided inside a cold air discharge port formed on an inner wall of a freezer compartment and a refrigerating compartment and opens and closes the cold air discharge port by a sensor that detects a temperature in the refrigerator, wherein the cold air discharge port is mounted on the inner wall of the refrigerator. At least two dampers for opening and closing the damper, damper driving means mounted to the damper to drive the damper according to the temperature detection of the temperature sensing sensor, and installed at the inner wall at both sides of the damper to sense movement of the damper to sense the movement of the damper. And a damper position detecting means for controlling the driving means. The refrigerator according to claim 1, wherein the damper driving means includes a drive motor driven in both directions, a pinion formed on the shaft of the drive motor, and a rack formed at one end of the damper to engage the pinion. Cold air discharge control device. The apparatus of claim 1, wherein the damper position detecting means includes a micro switch operated in contact with the damper to control the driving motor. The apparatus of claim 3, wherein the micro switch is installed at a position where the damper can contact the damper only when the damper completely opens and closes the cold air discharge port.