KR960006520Y1 - Refrigerator - Google Patents

Abstract

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Description

Refrigerator thermostat

1 is a view showing a position in the refrigerator of the refrigerator thermostat according to the present invention,

2 is a view showing the structure of a conventional refrigerator temperature controller,

3 is a cross-sectional view showing the structure of a refrigerator temperature controller according to the present invention,

4 is a front view of the resistance plate shown in FIG.

5 is an electrical circuit diagram of the resistance plate shown in FIG.

Figure 6 is a circuit diagram showing a temperature control execution process of the refrigerator thermostat according to the present invention.

* Explanation of symbols for main parts of the drawings

11: damper 12: refrigerator

13: moving shaft 14: variable resistor

15: moving contact 16: fixed part

17: resistance plate 18: knob

19: freezer 21: microcomputer

22: freezer control display unit 23: refrigerator compartment control display

24: parts control unit 25: use status display unit

26: freezer temperature setting unit 27: artificial intelligence function selection unit

28: refrigeration temperature sensor unit 29: refrigeration temperature sensor unit

30: damper control unit I1 ~ I5: input terminal

31: first light emitting diode 32: second light emitting diode

33: third light emitting diode R1 to R16: resistance

D1 ~ D9: Inverter 34: 4th light emitting diode

35: fifth light emitting diode 36: sixth light emitting diode

Vcc: Power Supply Terminal 37: First Relay

38: second relay unit 39: third relay unit

S1, S2, S3: Switch 40: Compressor

41: fan 42: heater

RC: Variable resistor 43: 7th light emitting diode

44: 8th light emitting diode

45: ninth light emitting diode

46,47: button

The present invention relates to a temperature controller of a refrigerator, and more particularly, to a temperature controller of a refrigerator capable of identifying a position of a damper controller of a refrigerator and attaching a variable resistor to determine a position of the damper controller by a resistance value according to a rotation angle. will be.

The damper provided in the conventional refrigerator refrigerating compartment serves as a passage for supplying the refrigerant from the compressor into the refrigerating compartment, and adjusts the width of the passage to control the amount of the refrigerant to the refrigerating compartment.

By the way, the conventional damper has a mechanical device that can control the moving distance of the bellows by using the expansion of the gas, as shown in Figure 2, the switch connecting the cam 1 and the switch 2 On / off types are known. However, this structure has difficulty in diversifying functions because only the damper can be opened and closed. That is, it is difficult to diversify the function because it is impossible to determine the current position of the regulator.

The present invention has been made in view of the above problems, and attaches a movable contact of a variable resistor to a moving shaft, attaches a resistor plate to a fixed portion, and the movable contact and the resistive plate come into contact with a slide type to open and close the damper. Of course, the purpose of the present invention is to provide a temperature controller of the refrigerator, which allows the position of the damper regulator to be known to a minute difference.

In order to achieve the above object, the present invention, in the temperature controller of the refrigerator to control the opening and closing of the damper, the moving shaft, the contact portion and the fixing portion attached to the moving shaft, the resistance attached to the fixing portion It is made of a plate, characterized in that the movable contact and the resistance plate is in sliding contact.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the illustrated drawings.

1 is a view showing the position of the refrigerator thermostat in the refrigerator according to the present invention, Figure 3 is a cross-sectional view showing the structure of the refrigerator thermostat according to the present invention, Figure 4 is a view of the resistance plate shown in FIG. 5 is an electrical circuit diagram of the resistance plate shown in FIG. 4, and FIG. 6 is a circuit diagram showing a temperature control process of a refrigerator temperature controller according to the present invention.

Damper 11 according to the present invention is installed in the upper and lower middle portions of the refrigerating chamber 12, as shown in Figure 1, the temperature controller according to the present invention is to control the opening amount of the damper (11).

The thermostat according to the present invention, as shown in FIG. 3, the movable contact 15 of the variable resistor 14 is installed on the moving shaft 13, and the resistance plate 17 on the fixing portion 16, which is a damper body. ) Is installed. Turning the thermostat knob 18 of the above structure moves the moving contact point 15 to move between the contact point A or B of the resistance tube 17 and the moving contact point 15 as shown in FIG. Since the resistance value is changed, the resistance value can be used to finely determine the opening and closing of the damper 11 as well as the moving distance and the moving angle. This electrical structure is shown in FIG. 5, and FIG. 4 is a front view of the resistance plate 17. When the knob 18 is rotated, the movable contact 15 moves on the resistance plate 17 in a circular motion. It is.

When the damper 11 is used, when the freezer compartment 19 and the refrigerating compartment 12 are used in different functions, the freezer compartment 19 is marked as frozen when the freezer compartment 19 is used for freezing, and is marked as disabled when the freezer compartment 19 is not used. If the refrigeration / suspension and the refrigerating chamber 12 is used for refrigeration, the display function as refrigeration, and if the refrigerating chamber 12 is not used, the function indicators such as refrigeration / suspension, etc. can be displayed, the artificial intelligence function For example, since the position of the knob 18 of the refrigerating chamber 12 can be known at the present time, it is possible to control the refrigerator more accurately and appropriately.

An embodiment of a refrigerator control circuit using such a damper 11 is shown in FIG.

An embodiment of the present invention shown in FIG. 6 will be described in detail.

The microcomputer 21 includes a freezer control unit display unit 22, a refrigerator control unit display unit 23, a parts control unit 24, a use state display unit 25, a freezer compartment temperature setting unit 26, an artificial intelligence function selection unit 27, and a freezer. The temperature sensor unit 28, the refrigeration temperature sensor unit 29 and the damper control unit 30 is connected. That is, in the freezer compartment temperature setting unit 26 and the artificial intelligence function selection unit 27, the freezing temperature sensor unit 28, the refrigerating temperature sensor unit 29 and the damper control unit 30, the input terminal of the microcomputer 21 ( I1, I2, I3, I4, I5) input the output signal.

The microcomputer 11 sends an output signal to the freezer compartment controller 22, the refrigerator compartment controller 23, the component controller 24, and the use state display unit 25, respectively. These output signals are sent through the output terminals P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, and P12 of the microcomputer 11, respectively.

The freezer compartment display unit 22 includes a first light emitting diode 31 indicating that cooling of the freezing compartment 19 is strongly performed, and a second light emitting diode 32 and a freezing compartment indicating that cooling of the freezing compartment 19 is performed to a moderate degree. And a third light emitting diode 33 indicating that cooling of 19 is performed weakly.

(R1), (R2), and (R3) provided in the freezer compartment display unit 22 are resistors, and (D1), (D2) and (D3) are inverters.

The refrigerating chamber controller display section 23 includes a fourth light emitting diode 34 indicating that cooling of the refrigerating chamber 12 is being strongly performed, and a fourth light emitting diode 34 indicating that cooling of the refrigerating chamber 12 is performed strongly; And a fifth light emitting diode 35 indicating that cooling of the refrigerating chamber 12 is performed at an intermediate level, and a sixth light emitting diode 36 indicating that cooling of the refrigerating chamber 12 is weakly performed. (R4), (R5) and (R6) provided in the refrigerating chamber controller display section 23 are resistors, (D4), (D5) and (D6) are inverters, and (Vcc) represents a power supply terminal.

Meanwhile, the component control unit 24 connected to the microcomputer 21 includes a first relay unit 37, a second relay unit 38, and a third relay unit 39, and output terminals of the microcomputer 21. When the HIGH signal is output from P7, P8, and P9, the switches S1, S2, and S3 are closed to operate the compressor 40, the fan 41, and the heater 42. .

On the other hand, the damper control unit 30 is composed of a resistance plate 17 and a moving contact 15 according to the present invention, and moves with the resistance plate 17 to the variable resistor (RC) as shown in FIG. The output signal of the variable resistor RC made of the contact point 15 is input to the input terminal 15 of the microcomputer 21.

The use state display unit 25 includes a seventh light emitting diode 43 that indicates whether the freezing chamber 19 is in a use state or a stop state, and an eighth light emitting diode 44 that indicates whether the refrigerating chamber 12 is in use state or in use state. The ninth light emitting diode 45 is configured to emit light when both the freezing chamber 19 and the refrigerating chamber 12 are in use. The seventh light emitting diode 43, the eighth light emitting diode 44, and the ninth light emitting diode 45 are outputted by the microcomputer 21 through the resistors R7, R8, and R9 and the inverters D7, D8, and D9. It is connected to terminals P10, P11, and P12.

The freezer compartment temperature setting unit 26 is provided with a button 46. When the user wishes to set the temperature of the freezer compartment 19 to one of strong, medium, weak, or middle, the user presses the button 46 first and then the freezer ( The temperature of 19) is set to either strong or heavy.

A button 47 is also installed in the artificial intelligence function selection unit 27, and the user presses the button 47 when the user wants to use the artificial intelligence function built in the microcomputer 21.

The freezing temperature sensor unit 28 and the refrigerating temperature sensor unit 29 sense the temperature of the freezing compartment 19 and the refrigerating compartment 12, respectively, and input the detection signal to the input terminals I3 and I4 of the microcomputer 21. .

In FIG. 6, D10 to D12 are inverters, and R10 to R17D are resistors.

As shown in FIG. 6, the microcomputer 21 may read the state of the current damper 11. That is, since the variable resistor RC constitutes the damper 11, the state of the damper 11 is input to the microcomputer 21. In addition, as shown in FIG. 6, the status display of the refrigerating chamber 12 is possible.

That is, the fourth light emitting diode 34, the fifth light emitting diode 35 and the sixth light emitting diode 36 are provided in the refrigerating chamber controller display portion 12, and according to the state of the refrigerating chamber 12, The corresponding light emitting diode is emitted, so that the user can know the cooling state of the refrigerating chamber 12 through the light emitting diode.

On the other hand, the indication of the on / off state of the freezer compartment 19 and the refrigerating compartment 12 is made through the use state display unit 25. When the seventh light emitting diode 43 emits light, the freezing chamber 19 is used. When the eighth light emitting diode 44 emits light, it indicates that the refrigerating chamber 12 is used. When the diode 44 does not emit light, it indicates that the refrigerating chamber 12 is in a suspended state. When the ninth light emitting diode 45 emits light, it indicates that both the freezing chamber 19 and the refrigerating chamber 12 are in use.

In addition, when the button 47 installed in the artificial intelligence function selection unit 27 is pressed, the artificial intelligence function of the microcomputer 21 is selected, and if the artificial intelligence function is selected, the microcomputer from the freezing temperature sensor unit 28 is selected. Temperature data of the freezer compartment inputted to (21), temperature data of the refrigerating compartment 12 inputted to the microcomputer 21 from the refrigerating temperature sensor unit 29, and inputted to the microcomputer 21 from the damper control unit 30 The open state data of the damper 11 is integrated in the microcomputer 21 so that an accurate output signal is output to the component control unit 24.

On the other hand, the temperature setting of the freezer compartment 19 is executed after pressing the button 46 configured in the freezer compartment temperature setting unit 26, and thus, when this button 46 is pressed, the freezer compartment display unit 22 Freezer status display is possible.

As described above, the present invention, since the damper state can be known without opening and checking the refrigerator door from the outside, the user can quickly understand the temperature condition inside the refrigerator, thereby enabling the rapid and accurate control of the refrigerator temperature. .

In addition, since the damper is composed of a slider-type resistance regulator, there is an effect that the control of the refrigerator temperature can be precisely executed, and the effect of the diversification of functions can be realized.

Claims (2)

(Correction) In a refrigerating system configured to control the opening and closing of a damper, an eleventh controller display section 22 for displaying a state of a freezer compartment controller in accordance with signals p1 to p3 output from the microcomputer 21 and the microcomputer 21. Compressor 40 and fan (2) in accordance with second controller display section (23) for displaying the freezer compartment condition in accordance with signals (p4 to p6) output from the control unit and control signals (p7 to p9) output from the microcomputer (21). The use state for displaying the use state of the refrigerating chamber 12 and the freezing chamber 19 in accordance with the parts control unit 24 for driving the 41 and the heater 42 and the signals p10 to p12 output from the microcomputer 21. The display unit 25 and the freezer compartment temperature setting unit 26 which sends a temperature signal to the input terminal I _{1 of} the microcomputer 21 to set the freezer compartment temperature and the one input terminal I ₂ of the microcomputer 21 are artificial. By detecting the temperature of the artificial intelligence function selection unit 27 and the freezer compartment 19 configured to send an intelligent selection signal It detects the temperature of the freezer compartment temperature sensor unit 28 and the refrigerating compartment 12, which sends a detection signal to one input terminal I ₃ of the microcomputer 21, and sends it to one input terminal I ₄ of the microcomputer 21. Refrigerator temperature control, characterized in that consisting of a damper position control unit (30) for sending a signal to the input terminal (I ₅ ) of the microcomputer 21 and the signal that changes depending on the degree of opening and closing of the refrigerator compartment temperature sensor unit (29) Device. 2. The slide resistor according to claim 1, wherein the damper position adjusting portion 30 moves the movable contact 15 along a resistor provided on the upper surface of the fixing portion 16 in response to the rotation of the knob 18 for the temperature controller. Refrigerator temperature control device, characterized in that consisting of.