KR100228854B1 - Control system of amount of cooling air by load of indoor of a refrigerator - Google Patents

Abstract

The present invention provides a cold air discharge control system according to the load in the refrigerator to allow the amount of cold air discharged according to the load in the refrigerator to be adjusted.

In the cold air discharge control system according to the load in the refrigerator, a plurality of shelves 34 for storage space are installed in the refrigerating chamber 18 and the freezing chamber 17, and a plurality of discharge ports 16b, 16'b, In the refrigerator 10 configured to supply cold air through 16 "b), it is elastic to the fixed bead 32 in the refrigerator 10 so as to reciprocate up and down according to the presence or variation of the load amount of the object to be stored. Shelf 34 is connected to the elastic movement through the member 38 and the shelf 34 is fixedly connected to the shelf 34, the vertical movement is possible according to the vertical movement thereof, and the predetermined cold air regardless of the load of the object Air flow rate adjusting device formed to open and close the discharge ports 16b and 16'b for constantly discharging the discharge holes and the discharge ports 16b and 16 "b for discharging the cold air that is varied in proportion to the variation in the load of the storage object ( By including 36); The shelf 34 moves downward in proportion to the change of the load of the object stored on the shelf 34, and thus the cool air amount adjusting device 36 descends to discharge the discharge holes 16 ′ b and 16 ″ b. It is characterized in that it is configured to open in proportion to the load of the received object.

According to the configuration of the present invention, the amount of cold air discharged to the refrigerator storage space can be automatically adjusted according to the variation of the load of the objects stored on the shelves in the refrigerator to more efficiently store the stored objects. It can be effective.

Description

Cooling air discharge control system according to the load in the refrigerator

The present invention relates to a cold air discharge control system of the refrigerator, and more particularly, in the refrigerator so that the amount of cold air discharged into the refrigerator storage space can be automatically adjusted according to the variation of the load of the objects stored on the shelf in the refrigerator. It relates to a cold air discharge control system according to the load amount.

Typically, the home refrigerator 10 is largely divided into a freezer compartment 17 and a refrigerating compartment 18, as shown in the side cross-sectional view shown in FIG. 1, and has a special purpose such as a quick freezer compartment or a vegetable compartment, depending on the model. Space may be formed. Such a refrigerator 10 has a cold air duct 15 for circulating coolant and cool air duct 15 for cooling the circulation of cold air and an intake duct 19 in a middle portion of the refrigerating chamber 18 and the freezing compartment 17 on the opposite side to the bottom of the door 22. The refrigerant circulating device includes a compressor (11), a radiator (12) serving as a condenser, a cooler (13), a refrigerator compartment fan (14b), a freezer compartment fan (14a), and the like.

The refrigerator 10 having the above-described configuration compresses the saturated steam of a low boiling point refrigerant having the inside of the refrigerator 10 as a low heat source and the outside as a high heat source to a high pressure in the compressor 11 to provide a condenser radiator 12. In the radiator 12, latent heat of evaporation is discharged from the high-pressure and high-temperature refrigerant to a high heat source outside the refrigerator, causing a phase change to a liquid refrigerant, and the liquid refrigerant passes through an expansion valve and low pressure. After being throttled to low temperature, it is introduced into the evaporator, that is, the cooler 13. The low-pressure and low-temperature refrigerant in the cooler 13 absorbs latent heat from the low heat source inside the refrigerator 10 in the liquid phase, causing a phase change to the refrigerant in a saturated steam state, and then flowing back into the compressor 11 described above. This constitutes a circulation cycle of the refrigerant.

If the cool air 13 is in contact with the cooler 13 installed on the inside and the rear of the refrigerator 10 while repeating the circulation cycle of the coolant, the cool air is circulated. The cold air cooled outside the cooler 13 passes through the cold air duct 15 and the discharge ports 16a and 16b by the freezing chamber fan 14a and the refrigerating chamber fan 14b for supplying the cold air. 18 and the like. The cold air supplied to the freezer compartment 17 and the refrigerating compartment 18 circulates between the objects stored therein, and is recovered to the cooler 13 side through the intake duct 19 to complete the circulation cycle of the cold air. Thus, the cold air circulates to control each of the freezing chambers 17 and the refrigerating chambers 18 to a predetermined temperature, thereby bringing about a desired freezing effect.

In the refrigerator 10 using the circulation cycle of the refrigerant and cold air, a temperature control system is generally provided, and according to the input of a predetermined temperature sensor or the like, the compressor 11, the refrigerating chamber fan 14b, the freezing chamber fan 14a, and the like. By controlling the driving of the cold air will be controlled.

However, in the above-described cold air circulation control system of the refrigerator 10, only the temperature is controlled regardless of the amount of the object stored in the refrigerating chamber 18, so that when the storage amount is small, it is easy to be excessively cooled. When the storage amount is large, there is a problem that the cooling effect is lowered.

In other words, when the temperature of the refrigerating chamber 18 or the like becomes higher than the predetermined temperature, the compressor 11 or the like is driven to circulate the cold air cooled in the cooler 13, and the amount of the cold air is stored in the refrigerating chamber 18 or the like. Since a certain amount of cold air is discharged to the storage space regardless of the amount of the storage object, it is difficult to control that the stored object is properly cooled within a desired time.

Accordingly, the present invention has been made to solve the above-described problem, the load amount in the refrigerator so that the amount of cold air discharged into the refrigerator storage space can be automatically adjusted in accordance with the change in the load amount of the objects stored on the shelf in the refrigerator The purpose is to provide a cold air discharge control system according to.

1 is a side cross-sectional view schematically illustrating the configuration of a conventional refrigerator.

2 is a side view showing the structure and operation of the cold air discharge control system according to an embodiment of the present invention.

3 is a front view showing the structure of the cold air discharge control system according to an embodiment of the present invention.

4 is a side view showing the structure and operation of the cold air discharge control system according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: refrigerator 11: compressor

12: radiator 13: cooler

14a: freezer compartment fan 14b: freezer compartment fan

15: cold air duct 16a: freezer discharge outlet

16b: refrigerator compartment discharge outlet (no load) 17: freezer compartment

16'b, 16 "b: Refrigeration chamber discharge port (opening and closing in conjunction with the load) 18: Refrigeration chamber

19: intake duct 22: door

24: shelf (fixed type) 26: bead

32: fixed bead 34: lathe

36: cooling air amount control device 38: elastic member

In order to achieve the above object, the present invention provides a refrigerator having a plurality of shelves for a storage space in a refrigerating chamber and a freezing chamber, and configured to supply cold air to the storage space through a plurality of discharge ports. The shelf is connected to enable the elastic movement through the elastic member in the fixing bead in the refrigerator to enable the reciprocating movement up and down according to the presence or absence of the, and the vertical movement is possible according to the vertical movement is connected to the shelf, And a discharge port for constantly discharging a predetermined cool air irrespective of the load amount of the stored object, and a cold air amount adjusting device configured to open and close the discharge port for discharging the cold air that is changed in proportion to a change in the load amount of the stored object. ; The shelf moves downward in proportion to the change of the load of the object stored on the shelf, and thus the cold air amount control device is lowered to open the discharge port in proportion to the load of the stored object. It provides a cold air discharge control system according to the load in the refrigerator.

In addition, the cold air discharge amount control system according to the load in the refrigerator provided by the present invention, in addition to the configuration, the elastic member is a compression type elastic member or a tensile type elastic member, the shelf is compressed according to the load of the object to be stored It may be configured to characterized in that it is configured to compress or tension the type elastic member or the tension type elastic member with respect to the fixed bead.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a side view showing the structure and operation of the cold air discharge control system according to an embodiment of the present invention, Figure 3 is a front view showing the structure of the cold air discharge control system according to an embodiment of the present invention. . 4 is a side view showing the structure and operation of the cold air discharge control system according to another embodiment of the present invention.

In the cold air discharge control system according to a preferred embodiment of the present invention as shown in Figures 2 and 4, a plurality of shelves 34 for storage space are installed in the refrigerating chamber 18 and the freezing chamber 17, And a shelf 34 and a discharge port which are adopted to the refrigerator 10 configured to supply cold air through the plurality of discharge ports 16b, 16'b, and 16 "b to the storage space. It is configured to include a cooling air amount control device 36 for opening and closing the 16'b, 16 "b).

The shelf 34 is elastically moved through a plurality of elastic members 38 in the fixed bead 32 in the refrigerator 10 so that the shelf 34 can reciprocate up and down according to the load amount of the object stored thereon and change. Possibly connected. In the embodiment shown in FIGS. 2 to 3, the fixed bead 32 formed in the refrigerator 10 is located below the shelf 34, but may also be located above the shelf 34. Can be.

In other words, if the elastic member 38 is a compression type elastic member such as a compression coil spring, as in the embodiment shown in FIGS. 2 to 4, the shelf 34 is a variation of the load of the object received The compression type elastic member can be configured to compress against a fixed bead 32 positioned below it.

In contrast, in the case where the elastic member 38 is a tension type elastic member such as a tension coil spring, although not shown, the shelf 34 has the tension type elastic member disposed thereon according to the load of the object to be stored. It may be configured to tension with respect to the fixed bead 32 located.

In addition, the fixed beads 32 need not be limited to the rods shown in FIGS. 2 and 4. For example, although not shown, the elastic member 38 may be formed in a guide shape to support only the portion to which the elastic member 38 is fixed so as to support the movement area of the shelf 34.

The cold air amount control device 36 is fixedly connected to the shelf 34 to enable vertical movement according to its vertical movement, and to open and close the discharge ports 16'b and 16 "b according to the vertical movement. The cold air amount control device 36 may include an opening and closing plate that vertically moves to open and close the discharge holes 16'b and 16 "b in the cold air duct 15, and the opening and closing plate is disposed on the upper and lower sides of the shelf 34. It may be composed of a connecting shaft fixedly connected to interlock with the movement. In the front view shown in FIG. 3, the opening and closing plate is indicated by a dotted line of a rectangle, and the shape of the opening and closing plate may be various shapes so as to correspond to the shapes of the discharge holes 16 ′ b and 16 ″ b.

In the cold air discharge amount control system according to the embodiments of the present invention configured as described above, when the receiving object is placed on the shelf 34, the shelf 10 is lowered in proportion to the load of the stored object. Accordingly, the cool air amount adjusting device 36 is lowered so as to open the discharge ports 16'b and 16 "b in proportion to the load of the storage object.

In the embodiment of the present invention shown in FIG. 2, the discharge port is opened and closed by the cold air amount control device 36 so that only the discharge port 16'b discharging the amount of cold air that varies according to the size of the opening is opened. It can be configured to include. In this case, the discharge port 16'b has a predetermined portion open even when there is no storage object on the shelf 34, so that only a minimum of cold air can be supplied.

In the embodiment of the present invention as shown in FIG. 4, the discharge port is provided by a discharge port 16b for discharging a predetermined amount of cold air irrespective of the load amount of the storage object and the cold air amount control device 36. It can be configured to include both the variable discharge port 16 "b for discharging the amount of cold air that varies depending on the size of the opening to be opened and closed. In this case, if there is no object stored on the shelf 34, the amount of cold air The variable discharge port 16 "b is completely closed by the opening / closing plate of the adjusting device 36, and opens according to the load of the stored object. As a result, when there is no object stored in the refrigerating chamber 18, only the minimum cold air can be supplied from the discharge port 16b.

According to the configuration and function of the cold air discharge control system according to the load in the refrigerator according to the embodiment of the present invention described above, the amount of cold air discharged into the refrigerator storage space according to the variation of the load of the objects stored on the shelf in the refrigerator Since it can be automatically adjusted, there is an effect that can be stored (cold) more efficiently stored objects.

Although embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto, and the present invention is not limited to the scope of the present invention provided in the following claims. It will be readily apparent to one of ordinary skill in the art that various modifications and variations can be made.

Claims (2)

A plurality of shelves 34 for the storage space are installed in the refrigerating chamber 18 and the freezing chamber 17, and configured to supply cold air to the storage space through the plurality of discharge ports 16b, 16 ′ b, and 16 ″ b. In the refrigerator 10 having: the elastic movement through the elastic member 38 in the fixing bead 32 in the refrigerator 10 to enable the reciprocating movement up and down in accordance with the presence or variation of the load of the object to be stored. A discharge port 16b, 16'b which is connected to the shelf 34 and fixedly connected to the shelf 34 to enable vertical movement according to its vertical movement, and constantly discharges predetermined cold air regardless of the load of the storage object. And a cool air amount adjusting device 36 formed to open and close the ejection openings 16b and 16 " b for discharging the cold air which varies in proportion to the change in the load of the storage object; The shelf 34 moves downward in proportion to the change of the load of the object stored on the shelf 34, and thus the cool air amount adjusting device 36 descends to discharge the discharge holes 16 ′ b and 16 ″ b. Cold air discharge amount control system according to the load amount in the refrigerator, characterized in that configured to open in proportion to the load of the stored object. The method of claim 1, wherein the elastic member 38 is a compressive elastic member or a tensile elastic member, the shelf 34 is fixed bead to the compressive elastic member or tensile elastic member according to the load of the object to be stored Cold air discharge amount control system according to the load in the refrigerator, characterized in that configured to compress or tension relative to (32).

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