KR20000034310A - Device for controlling temperature of refrigerator - Google Patents

Abstract

PURPOSE: A device for controlling the temperature of a refrigerator is provided to make possible the operation of a device for controlling the temperature in a refrigerator by a simple mechanical method and to make convenient the use by improving the structure. CONSTITUTION: When a user desired to control the temperature in a freezing chamber(F), the door of a refrigerating chamber(R) is opened, and a lever(112) of a control handle(110) prepared on the lower portion of a fourfold part(800) is shifted left and right. The lever is slid on the inner face of a long hole(102) of a guide duct(100) and shifted left and right. The control handle is then shifted, and a first gear part(200) interlocked to the other side rotates. A rod member(300) combined to a rack in a pinion type is interlocked, and moves backward and forward. A second gear part rotates by the forward and backward movement of the rod member, and a flap member(500) combined to the second gear part rotates. The open angular degree of a channel(700) of the freezing chamber is varied by the left and right rotation of the flap member, and thus the supply amount of cool air is controlled without regard to the rotation of a cooling fan(30). Thereby, the temperature in the refrigerator is controlled by the varying of the supply amount of the cool air to the freezing chamber.

Description

Refrigerator thermostat

The present invention relates to a refrigerator, and more particularly, to a temperature control apparatus of a refrigerator in which the structure of the refrigerator is improved to be mechanically adjustable at the front side of the refrigerator compartment.

In general, a refrigerator is a home appliance used to freeze and refrigerate food by the heat of evaporation of a refrigerant using a cooling cycle. The refrigerator freezes the food stored by introducing cold air cooled by an evaporator into a refrigerator. And refrigerated.

A conventional refrigerator is roughly divided into a cabinet having a cavity having a predetermined volume in appearance and a door rotatably provided at a side of the cabinet to selectively open and close the cavity.

In addition, a rear of the cabinet is provided with a separate machine room for accommodating components such as a compressor, a condenser, and a capillary tube constituting the aforementioned cooling cycle.

The cooling cycle includes a compressor for compressing a gas refrigerant such as a freon into a gas refrigerant of high temperature and high pressure, and a condenser for cooling, condensing and liquefying gas refrigerant of high temperature and high pressure conveyed from the compressor by external air. And a capillary tube for depressurizing the liquid refrigerant from the condenser, and an evaporator for absorbing and cooling the surrounding heat while the depressurized refrigerant from the capillary is evaporated.

In addition, there is further provided a dryer provided between the condenser and the evaporator for evaporating the moisture of the refrigerant, and a suction pipe which is a flow path through which the refrigerant from the evaporator is transferred to the compressor.

In a conventional refrigerator having such a cooling cycle, cold air of an evaporator generated by circulation of a refrigerant is supplied into a refrigerator to store food and the like at a low temperature, and a diagram showing the flow of the cold air is shown in FIG. 1.

This is an evaporator 10 provided at the rear of the refrigerator cabinet C, a fan motor 20 and a cooling fan 30 for supplying cool air from the evaporator 10 into the freezer compartment F and the refrigerating compartment R in the refrigerator. ), The freezer compartment F, the louvers 40 and 50 of the refrigerator compartment R, and the like, which are provided with discharge ports through which cold air of the freezer compartment F and the refrigerator compartment R are discharged.

In addition, it has a structure in which adjustment summer (not shown) which adjusts the air volume of the cold air blown into the inside by the cooling fan 30 is provided, respectively.

In detail, the thermostat is mainly adopted as a thermostat, and the thermostat is expanded and contracted according to the internal temperature of the refrigerator, and the opening angle with the inner wall is automatically adjusted. The internal temperature can be controlled by the supply amount.

As shown in FIG. 2, the high temperature control device is provided with adjustment knobs 62 and 64 on the louvers 40 and 50 sides of the freezer compartment and the refrigerating compartment, respectively, to adjust the amount of cold air discharge according to the user's convenience. It is to choose strength and weakness.

In the conventional refrigerator having such a structure, cold air generated from the evaporator 10 is forcedly blown from the cooling fan 30 to be supplied to the freezer compartment F and the refrigerating compartment R, respectively. It will have a process of returning to (10) side.

At this time, the cool air blown by the cooling fan 30 is supplied with a variable discharge amount according to the opening angle of the adjustment summer.

By the way, such a conventional refrigerator has an operation handle for adjusting the temperature in the refrigerator at the louver side of the rear side of the refrigerator, so that the use of such a refrigerator is inconvenient when the food or the like is stored in the refrigerator.

In particular, when the door is opened for temperature control of the freezer compartment, since hot air is introduced into the freezer compartment, the temperature in the refrigerator rises sharply, there is a problem in that the power consumption is consumed a lot to maintain the internal temperature of the freezer compartment at a constant temperature.

Of course, in recent years, an electronic control apparatus for automatically controlling the supply amount of cold air by setting the high internal temperature electronically has been proposed. However, since the unit cost of each electronic product for controlling the high internal temperature is high, product competitiveness is lowered. There are disadvantages.

Accordingly, the present invention has been made in view of the above-mentioned problems, and the object thereof is to provide a refrigerator with a simple mechanical operation of the refrigerator's internal temperature control device, and at the same time improve the structure of the refrigerator. To provide a thermostat of the.

1 is a cross-sectional view showing a cold air flow of a conventional refrigerator,

2 is a front view of a conventional refrigerator,

3 is a configuration diagram schematically showing the configuration of a temperature control device of a refrigerator according to the present invention;

4 is an operational state diagram of the present invention.

Explanation of symbols on the main parts of the drawings

100: guide duct 104: longevity

110: adjusting knob 112: lever

114: rack gear 200 (with adjusting handle): first gear part

300: rod member 400: second gear portion

500: flap member 600: evaporator

700: Euro

The temperature control apparatus of the present invention refrigerator to achieve the above object is provided in the flow path of the rear of the refrigerator, the evaporator for generating cold air during refrigerant circulation, and a fan for supplying the cold air from the evaporator into the freezer compartment and the refrigerator compartment In the temperature control apparatus of the refrigerator provided with a motor, a cooling fan, and predetermined temperature control means for adjusting the supply amount of the cold air discharged to the said freezer compartment and the refrigerating compartment,

The temperature control means is provided on the upper side of the refrigerating compartment, the guide duct is formed on one side and a predetermined internal space is formed, and a lever slidingly moved to the long hole of the guide duct on one side is provided with a rack gear on the other side The control knob is formed, the first gear is meshed so as to be rotatable in accordance with the left and right movement of the control knob, one end is engaged with the first gear and the rod before and after the rotation of the first gear The second gear part which is engaged with the other end of the rod member and rotates forward and reverse according to the forward and backward movement of the rod member, and is axially coupled to the second gear part and interlocked with the second gear part to rotate the freezer compartment side. It characterized in that it is provided with a flap member for adjusting the opening angle of the flow path.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention. 3 and 4, the temperature control apparatus of the refrigerator according to the present invention is provided inside the flow path 700 at the rear of the refrigerator, and includes an evaporator 600 and cold air from the evaporator 600 for generating cold air during refrigerant circulation. The amount of cold air supplied from the fan motor 20 and the cooling fan 30 and the evaporator 600 supplied into the freezer compartment F to the inside of the freezer compartment F and the refrigerator compartment R may be selectively stored in the refrigerator compartment ( A predetermined temperature control means made adjustable in R).

In more detail, the temperature control means is provided on the upper side of the refrigerating chamber (R), the guide hole 100 is formed on one side and the predetermined internal space is formed, and the guide duct 100 on one side The lever 112 is provided to be slidably moved in the long hole 102 of the adjustment knob 110 and the rack gear 114 is formed on the other side thereof, and the handle 130 is rotatable in accordance with the left and right movement of the adjustment knob 110. The first gear part 200 to be engaged, the rod member 300 which is engaged with the first gear part 200 and is moved forward and backward when the first gear part 200 rotates, and the rod member 300. The second gear part 400 and the second gear part 400 which is engaged with the other end of the rod member 300 and rotated forward and backward according to the forward and backward movement of the rod member 300, are interlocked with the freezing chamber during the rotation thereof. The flap member 500 for adjusting the opening angle of the (F) side flow path 700 is provided.

In addition, the guide duct 100 is provided below the trimmer 800 for the convenience of the user, and one side thereof is preferably provided at a position close to the refrigerating chamber R door.

In addition, the first gear unit 200 includes a first pinion 210 meshed with the rack gear 114 of the adjustment knob 110 and a second pinion 220 interlocked with the first pinion 210. The left and right movements of the adjustment knob 110 are converted into rotational movements, and more preferably, the left and right movements of the adjustment knob 110 are transmitted to the rod member 300 by using one pinion gear.

The rod member 300 is provided with rack gears 302 and 304 at both ends thereof to convert the rotational movement of the first gear 200 into a forward and backward movement.

The second gear unit 400 is engaged with the rack gear 304 of the other end of the rod member 300 to convert the forward and backward movements of the rod member 300 into rotational movements and transfer them to the flap member 500. Has the function.

In addition, the flap member 500 is accommodated in the flow path 700 of the freezing chamber F side, and the opening angle of the flow path 700 is changed according to the rotation angle thereof, and thus the cold air flowing into the freezing chamber F during the rotational movement thereof. It has a function of varying the supply amount of.

Unexplained reference numeral 102 denotes a guide part 102 provided on the lower side of the guide duct 100 for guiding forward and backward of the rod member 300.

Referring to the operation of the present invention having such a configuration as follows.

When the user wants to control the internal temperature of the freezer compartment (F), by opening the refrigerating compartment (R) door to move the lever 112 of the adjustment knob 110 provided on the lower side of the trimming part 800, left and right.

At this time, the lever 112 is moved to the left and right while sliding to the inner peripheral surface of the long hole 102 of the guide duct (100).

Subsequently, as the adjusting knob 110 is moved, the first gear part 200 engaged with the other side is rotated, and the rod member 300 coupled with the rack and pinion type is interlocked to move forward and backward. do.

Thereafter, the second gear part 400 rotates according to the forward and backward movement of the rod member 300, and the flap member 500 axially coupled with the second gear part 400 rotates.

Accordingly, the opening angle of the flow path 700 of the freezing chamber F is changed according to the left and right rotation of the flap member 500, so that the supply amount of the cold air can be adjusted regardless of the rotation of the cooling fan 30.

Therefore, as the user moves the lever 112 of the adjustment knob 110 to the left and right again, the amount of cold air supplied to the freezing compartment F side is changed to enable temperature control in the refrigerator.

The temperature control device of the present invention the refrigerator described above is to improve the structure so that the temperature control of the freezer compartment by a simple mechanical control on the side of the refrigerator compartment, according to not only increase the user convenience, but also parts due to mechanical The cost is reduced.

Claims (1)

An evaporator provided inside the flow path at the rear of the refrigerator to generate cold air during refrigerant circulation, a fan motor and a cooling fan for supplying cold air from the evaporator into the freezer compartment and the refrigerating compartment, and a quantity of cold air discharged into the freezer compartment and the refrigerating compartment. In the temperature control device of the refrigerator provided with a predetermined temperature control means for adjusting the, A guide duct provided at an upper side of the refrigerating compartment and having a long hole formed at one side thereof, and having a predetermined internal space formed therein; An adjustment knob provided with a lever sliding on a long side of the guide duct on one side thereof and a rack gear formed on the other side thereof; A first gear part which is meshed to be rotatable according to the left and right movements of the adjustment knob; A rod member whose one end is engaged with the first gear part and is moved forward and backward when the first gear part rotates; A second gear part which is engaged with the other end of the rod member and rotates forward and backward as the rod member moves forward and backward; And a flap member axially coupled to the second gear unit and interlocked with the second gear to adjust an opening angle of the flow path of the freezer compartment side.