KR20090097584A - Device for cooling or heating water of purifier - Google Patents

Abstract

A device for cooling or heating water of a water purifier is provided to minimize an installation space without vibration or noise in use, and to prevent environmental contamination due to disposal of a coolant. A manufacturing method of a device for cooling or heating water of a water purifier includes the following steps of: mounting a heat exchanger(11) on the water purifier; covering a circumference of the heat exchanger with a high vacuum case(12); mounting a heat absorption part(131) of a peltier device on the bottom of the heat exchanger; mounting a heat sink(14) on a heating part(132) of the peltier device; and cooling or heating water passing through with the peltier device.

Description

Cooling device for water purifier {DEVICE FOR COOLING OR HEATING WATER OF PURIFIER}

The present invention relates to a cold water purifier for a water purifier, and more particularly, to a cold water purifier for a water purifier that can cool or warm water discharged from a water purifier using a Peltier device.

The cold water installed in the cold and hot water system uses a method of cooling the water of the water purifier by forcing a refrigerant such as freon gas or ammonia by the compressor, but this refrigerant destroys the ozone layer of the earth and pollutes the environment. When it causes serious environmental problems, the use of domestic and international regulations is increasing day by day.

In addition, the cooling method is a compressor circulation method has been pointed out as a disadvantage in homes and offices where a pleasant environment is required due to noise and vibration, and the size of the cold and hot water heater is also medium and large, requiring a lot of installation space. there was.

Accordingly, an object of the present invention is to cool or warm the water discharged from the bucket by using a Peltier element, there is no noise or vibration during use, environmentally friendly structure, and a cold water purifier for water purifier that can minimize the installation space will be.

Cold and hot water purifier for water purifier according to the present invention for achieving the above object is equipped with a heat exchanger in the water purifier, the circumference of the heat exchanger is covered by a high vacuum case, the heat absorbing portion of the Peltier element is mounted on the lower surface of the heat exchanger The heat dissipation plate is mounted to the heat generating portion of the Peltier element, and the Peltier element is cooled or heated by a control device, thereby cooling or heating water passing through the heat exchanger.

It is characterized in that it further comprises a cooling fan for cooling the heat generated in the heat generating portion in order to improve the performance of the heat absorbing portion of the Peltier element.

The control device includes a first power supply for converting the applied AC power into a DC power required for the operation of the control unit, and outputting the second power supply for transforming the applied AC power into a DC power required for the operation of the Peltier element. A temperature sensor for sensing a temperature of a heat exchanger and a temperature of a heat sink, a relay switch unit which is controlled by the control unit to control a DC power applied to the Peltier element from the second power supply unit, and input from the temperature sensor And a control unit for controlling the operation of the relay switch unit by comparing the inputted information with the information input from the input terminal.

The first power supply unit is characterized in that the voltage is dropped by the upper secondary coil of the transformer, rectified by the first bridge circuit, the constant voltage source is supplied to the control unit by the constant voltage IC and the capacitor.

The second power supply is characterized in that the voltage is lowered by the lower secondary coil of the transformer, rectified by the second bridge circuit, the output voltage is adjusted by the transformer including a variable voltage IC.

When the control unit receives a cold water selection or hot water selection signal from the cold / hot selection switch to the input terminal of the microcomputer, the output polarity of the second bridge circuit is changed so that the cooling and heating of the heat exchanger are selected, and the input terminal of the microcomputer is selected by the temperature setting switch. When the set temperature is input, the second relay switch of the relay switch unit is turned on to operate the second Peltier element, thereby preheating or preheating the heat exchanger to the preheating / precooling set temperature, and when the operation switch is input, the relay switch unit The first relay switch is turned on to operate the first Peltier element, thereby cooling or heating the temperature of the heat exchanger to a normal set temperature.

The Peltier element is composed of a first Peltier element and a second Peltier element, the first Peltier element is controlled operation by the first relay switch of the relay switch unit, the second Peltier element by the second relay switch of the relay switch unit The operation is controlled.

When the first transistor is turned on by the microcomputer, the relay switch unit causes a current to flow in the coil of the first relay switch, so that the mover is turned on. When the second transistor is turned on by the microcomputer (MICOM), the relay switch unit is connected to the coil of the second relay switch. As the current flows, the mover is turned on.

The temperature sensor is characterized in that any one of the PTC sensor, bimetallic or NTC sensor.

As a result, the cold water purifier for the water purifier according to the present invention uses a Peltier element to cool or warm the water discharged from the bucket, so that there is no noise or vibration during use, and it is an environmentally friendly structure, and the installation space can be minimized. It works.

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

1 and 2, in the cold / hot water purifier according to the present invention, a heat exchanger 11 is mounted on a water purifier (not shown), and the circumference of the heat exchanger 11 is formed by a high vacuum case 12. Covered, the heat absorbing portion 131 of the Peltier element 13 is mounted on the lower surface of the heat exchanger 11, the heat sink 14 is mounted on the heat generating portion 132 of the Peltier element 13, the control By the device 20, the Peltier element 13 cools or heats the heat exchanger 11, whereby water passing through the heat exchanger 11 is cooled or heated.

As is well known, the Peltier element 13 is a thermoelectric element using a thermoelectric effect, in which a pair of dissimilar metal conductors are bonded at two points, and when their bonding points are maintained at different temperatures, Generates an electromotive force proportional to the temperature difference. In such a Peltier device, when a current is applied, the temperature of one side of the Peltier element rises and the temperature of the other side decreases. If the current is reversed, the heat dissipation portion and the heat absorption portion are changed.

The cooling fan 15 further includes a cooling fan 15 for cooling the heat generated from the heat generating unit 132 to improve the performance of the heat absorbing unit 131 of the Peltier element 13.

The control device 20 converts the applied AC power into DC power required for the operation of the control unit 25, and outputs the first power supply unit 22 for outputting the applied AC power to the operation of the Peltier element 13. It is operated by the second power supply unit 23 for transforming and outputting the required DC power, the temperature sensor 27 for sensing the temperature of the heat exchanger 11 and the temperature of the heat sink 14, and the control unit 25. The control switch 26 controls the DC power applied from the second power supply unit 23 to the Peltier element 13 and the information input from the temperature sensor 27 and the information input from the input terminal. It consists of a control unit 25 for controlling the operation of the relay switch unit (26).

The Peltier element 13 is composed of a first Peltier element 13a and a second Peltier element 13b, and the first Peltier element 13a is formed by the first relay switch 261 of the relay switch unit 26. Operation is controlled, and operation of the second Peltier element 13b is controlled by the second relay switch 262 of the relay switch unit 26.

The AC power is supplied to the primary coil 210 of the transformer through the filter unit 21 for filtering the noise.

The first power supply unit 22 has a voltage drop by the upper secondary coil 221 of the transformer, rectified by the first bridge circuit 222, and the constant voltage IC 223 and the capacitor (C1, C2) The constant voltage source is supplied to the control part 25 by this.

The second power supply unit 23 has a voltage drop by the lower secondary coil 231 of the transformer, rectified by the second bridge circuit 232, and a transformer 24 including a variable voltage IC 241. ), The output voltage is adjusted. That is, for example, when the target temperature for controlling when the temperature of the heat exchanger 11 is set to a predetermined temperature (3 ° C. to 5 ° C.) is near, the voltage output by the transformer 24 is 24 V. It is applied to the Peltier element 13 while being pressed down to about 3V, and the heat absorbing portion of the Peltier element is continuously maintained at the preheating / precooling set temperature.

The stepped voltage is preferably set on the basis of experimental data in a state in which the Peltier element is not degraded within a range in which the temperature of the heat exchanger does not rise or fall.

The control unit 25 changes the output polarity of the second bridge circuit 232 when the cold water selection or hot water selection signal of the cold / hot selection switch 251 is input to the input terminal of the MICOM, thereby cooling and When heating is selected and the set temperature is input to the input terminal of the MICOM by the temperature setting switch 252, the second relay switch 262 of the relay switch unit 26 is turned on so that the second Peltier element 13b is turned on. ), By preheating or preheating the heat exchanger to a preheating / precooling set temperature, and when the operation switch 253 receives a signal, the first relay switch 261 of the relay switch unit 26 is turned on to turn on the first Peltier By operating the element 13a, the temperature of the heat exchanger is cooled or heated to a normal set temperature.

In addition, the control unit 25 further includes a display unit 254 for visually displaying information on the temperature rise of the Peltier device. The display unit 254 may include a plurality of light emitting diodes, 7-segments, or liquid crystal displays. Can be applied.

When the first transistor Q1 is turned on by the microcomputer MICOM, the relay switch unit 26 causes a current to flow in the coil of the first relay switch 261, and thus the mover is turned on, and the microcomputer MICOM. When the second transistor Q2 is turned on, a current flows in the coil of the second relay switch 262, so that the mover is turned on.

The temperature sensor 27 may be any one of a PTC sensor, a bimetallic, or an NTC sensor, and it is preferable to select an NTC sensor when precision control is required.

Cold water purifier for water purifier according to the present invention configured as described above operates as follows.

When the user selects cold water with the cold temperature selection switch 251 and sets the cooling temperature of the heat exchanger 11, the second relay switch 262 is turned on by the control unit 25, so that the second power supply unit 23 is turned on. Since the direct current power supply of) is supplied to the 2nd Peltier element 13b, the heat exchanger is precooled by the 2nd Peltier element 13b.

Thereafter, when the user turns on the operation switch 253, the first relay switch 261 is turned on by the control unit 25, so that the DC power of the second power supply unit 23 is transferred to the first Peltier element 13a. By being supplied, the heat exchanger is cooled to the set temperature by the first Peltier element 13a.

Subsequently, when the discharge of the cooling water is completed, the first relay switch 261 is turned off by the control unit 25 to control the operation of the first Peltier element 13a, and the microcomputer MICOM from the temperature sensor 27. When the temperature of the heat exchanger 11 reaches the set temperature by the information inputted by), the voltage outputted through the transformer 24 drops, so that the preheating set temperature at the endothermic portion of the Peltier element 13 It keeps going.

When the user selects hot water with the cold temperature selection switch 251, the output polarity of the second bridge circuit 231 is changed to generate heat in the heat absorbing portion 131 of the Peltier element 13. You can get hot water in the same way as above.

1 is a block diagram showing a cold water purifier for a water purifier according to the present invention.

2 is a circuit diagram showing the control device of FIG.

Claims (9)

The heat exchanger 11 is mounted on the water purifier, the periphery of the heat exchanger 11 is covered by the high vacuum case 12, and the heat absorbing portion 131 of the Peltier element 13 on the lower surface of the heat exchanger 11. ), A heat sink 14 is mounted on the heat generating portion 132 of the Peltier element 13, and the Peltier element 13 cools or heats the heat exchanger 11 by the controller 20. Cooling device for water purifier, characterized in that the water passing through the heat exchanger (11) is cooled or heated. The method of claim 1, Cooling device for water purifier, characterized in that it further comprises a cooling fan (15) for cooling the heat generated in the heat generating portion (132) to improve the performance of the heat absorbing portion (131) of the Peltier element (13). The method of claim 1, The control device 20 converts the applied AC power into DC power required for the operation of the control unit 25, and outputs the first power supply unit 22 for outputting the applied AC power to the operation of the Peltier element 13. It is operated by the second power supply unit 23 for transforming and outputting the required DC power, the temperature sensor 27 for sensing the temperature of the heat exchanger 11 and the temperature of the heat sink 14, and the control unit 25. The control switch 26 controls the DC power applied from the second power supply unit 23 to the Peltier element 13 and the information input from the temperature sensor 27 and the information input from the input terminal. Cooling device for water purifier, characterized in that consisting of a control unit 25 for controlling the operation of the relay switch unit (26). The method of claim 3, wherein The first power supply unit 22 has a voltage drop by the upper secondary coil 221 of the transformer, rectified by the first bridge circuit 222, and the constant voltage IC 223 and the capacitor (C1, C2) Cooling device for water purifier, characterized in that the constant voltage source is supplied to the control unit 25 by the. The method of claim 3, wherein The second power supply unit 23 has a voltage drop by the lower secondary coil 231 of the transformer, rectified by the second bridge circuit 232, and a transformer 24 including a variable voltage IC 241. Cooling device for water purifier, characterized in that the output voltage is adjusted by the). The method of claim 3, wherein The control unit 25 changes the output polarity of the second bridge circuit 232 when the cold water selection or hot water selection signal of the cold / hot selection switch 251 is input to the input terminal of the MICOM, thereby cooling and When heating is selected and the set temperature is input to the input terminal of the MICOM by the temperature setting switch 252, the second relay switch 262 of the relay switch unit 26 is turned on to turn on the second Peltier element 13b. By preheating or preheating the heat exchanger to the preheating / precooling set temperature, and when the operation switch 253 receives a signal, the first relay switch 261 of the relay switch unit 26 is turned on to turn on the first Peltier element. The cooler and warmer for a water purifier, wherein the temperature of the heat exchanger is cooled or heated to a normal set temperature by operating (13a). The method of claim 3, wherein The Peltier element 13 is composed of a first Peltier element 13a and a second Peltier element 13b, and the first Peltier element 13a is formed by the first relay switch 261 of the relay switch unit 26. Operation is controlled, the second Peltier element (13b) is a cold water purifier for water purifier, characterized in that the operation is controlled by the second relay switch (262) of the relay switch unit (26). The method of claim 3, wherein When the first transistor Q1 is turned on by the microcomputer MICOM, the relay switch unit 26 causes a current to flow in the coil of the first relay switch 261, and thus the mover is turned on, and the microcomputer MICOM. When the second transistor (Q2) is turned on, the current flows in the coil of the second relay switch (262), so that the mover is turned on, the cold water purifier for water purifier, characterized in that. The method of claim 3, wherein The temperature sensor 27 is a cold water purifier for water purifier, characterized in that any one of a PTC sensor, bimetallic or NTC sensor.

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