JP2012246059A - Safety device for water cooler-heater and water purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a safety device for a water cooler-heater and a water purifier for protecting a user from a PL accident or fire at the occurrence of overheating of a hot water tank.SOLUTION: The safety device includes a cold water tank 30 storing ordinary temperature water in a separator 31 upper part and cooled by a cooling device 40 in a separator 31 lower part; a hot water tank 50 storing ordinary temperature water supplied via a conduit 33 connected to a separator 31; and a heating device 51 heating the ordinary temperature water stored in the hot water tank 50. The hot water tank 50 includes a second temperature controller 54 managing electricity to be supplied to the heating device 51 for constantly maintaining the stored ordinary temperature water at a set temperature, and a third temperature controller 55 blocking the occurrence of overheating of the hot water tank 50 due to the heating device 51. The cold water tank 30 includes an overheating breaker 32 cutting off the electricity to be supplied to the heating device 51 when the ordinary temperature water stored in the separator 31 upper part exceeds the set temperature.

Description

  More particularly, the present invention relates to a safety device for cold / hot water and a water purifier for protecting a user from a PL accident and a fire when a hot water tank is overheated.

  Water that has not been used as drinking water in homes, offices, offices, etc. due to serious pollution of the water supply source, but purchased commercially available water and used as drinking water, or purified water by connecting a water purifier to the water supply Is used as drinking water.

  The water purifier is sanitary and can be drunk by purifying water while selectively passing untreated water through the non-woven filter, pre-carbon filter, hollow fiber membrane filter, post-carbon filter, etc. Provide water.

  Therefore, cold water heaters and water purifiers that can be used as cold water or hot water by rapidly cooling or heating the purified water to a predetermined temperature condition are widely used.

  The chiller / heater and the water purifier are internally provided with a storage tank that can store water supplied from a water tank or a fixed amount of water purified through a filter.

  The storage tank is divided into a cold water tank and a hot water tank.

  The cold water tank has a separation plate installed in the middle, normal temperature water is stored in an upper portion thereof, and cold water cooled to a predetermined temperature set by a cooling device is stored in the lower portion thereof.

  The hot water tank may be located at a lower part of the cold water tank, stores cold water supplied from a cold water tank through a pipe connected to a separation plate of the cold water tank, and the normal temperature water is set by a heating device. Hot water heated to a predetermined temperature is stored.

  Here, cold water means water cooled by the operation of the cooling device, and hot water means water heated by the heat generated by the heater.

  The warm water stored in the warm water tank can always maintain a set constant temperature by a sensor installed at a predetermined position.

  However, the temperature adjustment function may be lost due to the failure of the temperature adjustment sensor due to the overcurrent hydraulic pressure due to the progress of the chiller / heater and the internal and external factors and other causes.

  When the temperature adjustment function of the hot water tank is lost, the hot water stored in the hot water tank is overheated, and this overheated hot water has a problem of flowing back to the cold water tank through a pipe connected to the separator plate. The warm water flowing back to the tank mixes with the room temperature water and generates heat loss, so that much energy is wasted in cooling by the cooling device.

  Moreover, the temperature of normal temperature water and cold water cannot be maintained at the required set temperature, leading to customer dissatisfaction with the product.

  Further, the volume expansion due to the overheating of the hot water causes the pipe line connecting the hot water tank and the hot water cock to be damaged.

  Moreover, when discharging the hot water heated through the hot water cock, the discharge amount cannot be adjusted by a high pressure, and there is a risk of being burned by the heated hot water.

  In addition, when overheated due to the loss of temperature control function of the hot water tank, there is a serious danger that it can be connected to a fire.

  The present invention has been proposed to solve the above-described problems, and the present invention monitors the temperature of the cold water tank to detect whether the hot water tank is overheated, and if overheating is detected. An object of the present invention is to provide a safety device for a chilled water heater and a water purifier that cuts off the electric power supply and prevents the occurrence of a PL (Product Liability) accident in advance.

  According to an embodiment of the present invention, room temperature water is stored in the upper part of the separation plate installed in the intermediate part, and cold water cooled to a temperature set by the cooling device is stored in the lower part of the separation plate. A cold water tank, a hot water tank for storing normal temperature water of a cold water tank supplied via a pipe connected to a separator plate of the cold water tank, and the hot water tank installed and stored at a predetermined position outside A heating device that heats room temperature water to a set temperature, and a second temperature controller that manages electricity supplied to the heating device so that the hot water stored in the hot water tank is constantly maintained at the set temperature. A third temperature controller that shuts off electricity supplied to the heating device when there is no water stored in the hot water tank or when an abnormal overheating occurs, and a normal temperature stored on the upper part of the separator of the cold water tank. Water temperature is set temperature If it exceeds, it is determined that overheating occurs more than the temperature control function of the hot water tank and that the hot water is flowing back to the room temperature water side above the separator plate of the cold water tank, and the electricity supplied to the heating device is cut off. A safety device for a water cooler and a water purifier may be provided, including an overheat circuit breaker.

  A bimetal or a temperature sensor is applied to the second temperature controller, and the second temperature controller controls the electricity supplied to the heating device by hysteresis according to the temperature of the hot water stored in the hot water tank, thereby controlling the temperature of the hot water. The set temperature may be maintained.

  A manual return temperature controller may be applied to the overheat circuit breaker.

  In addition, the overheat breaker determines that the temperature of the room temperature water stored on the upper part of the separator of the cold water tank rises above a certain temperature per unit time as overheating due to an abnormality in the temperature adjustment function of the hot water tank. May be.

  Further, the overheat breaker may be disconnected when an abnormality in the temperature adjustment function of the hot water tank is determined, and the electricity supplied to the heating device may be interrupted.

  According to another embodiment of the present invention, a compressor that compresses and circulates refrigerant to cool cold water stored in the cold water tank, and a first temperature controller that turns on / off the compressor according to the temperature of the cold water. A switch for selecting whether or not the hot water can be used, a heater for heating the hot water stored in the hot water tank, a second temperature controller for turning on / off the heater according to the temperature of the hot water, and a hot water tank. When there is no water or when abnormal overheating occurs, the third temperature controller that cuts off the electricity supplied to the heater and the temperature of the normal temperature water stored in the cold water tank are detected, and the second temperature controller fails. If it is determined, a safety device for a chiller / heater and a water purifier may be provided, including an overheat circuit breaker that disconnects the electricity supplied to the heater.

  The compressor and the first temperature controller are connected in series, and are connected to both ends of a power cord that is plug-in connected to an ordinary power source. The heater, the second temperature controller, the third temperature controller, and the overheat breaker are May be connected in series and connected to both ends of the power cord.

  If the normal temperature water stored in the cold water tank exceeds a set temperature, the overheat circuit breaker determines that a reverse flow occurs due to overheating of the hot water stored in the hot water tank, and interrupts electricity supplied to the heater. Also good.

  The overheat circuit breaker determines that the second temperature controller is faulty and shuts off the electricity supplied to the heater when the temperature change of the room temperature water stored in the cold water tank increases per unit time exceeds a set value. May be.

  Further, the sensed temperature range of the overheat breaker may be varied according to the setting.

  According to still another embodiment of the present invention, a setting unit that sets operating conditions of a chiller / heater and a water purifier, and a first temperature detection that detects the temperature of chilled water stored in a lower part of a separation plate of the chilled water tank. Unit, a second temperature detection unit for detecting the temperature of the hot water stored in the hot water tank, a third temperature detection unit for detecting the temperature of the hot water tank, and the room temperature water stored on the upper part of the separator of the cold water tank A fourth temperature detecting unit for detecting the temperature, and controlling the operation of the compressor and the heater according to the temperature of the cold water detected by the first temperature detecting unit and the temperature of the hot water detected by the second temperature detecting unit; If the temperature of the hot water is maintained at the set temperature and the temperature of the room temperature water stored in the cold water tank detected by the fourth temperature detection unit exceeds the set temperature, the temperature adjustment of the hot water tank Overheating occurs more than the function Sectional, and cut off the electricity supplied to the heater, and a control unit for outputting by the display unit temperature regulating dysfunction message hot water tank, the safety device of the water dispenser and water purifier may be provided.

  The said setting part may set the power on / off by use of a cold water heater and a water purifier, the temperature conditions of cold water and warm water, the availability of warm water, and the availability of a sleep function.

  The said setting part may be installed in the predetermined position of the front-surface panel of a water heater and a water purifier, and may be integrally comprised by the display part as a touch panel.

  According to the embodiment of the present invention, by monitoring the temperature of the cold water tank, if it is determined that the hot water is flowing backward due to overheating of the hot water tank, the operation of the heating mechanism is interrupted, and a message is output for that. , Prompt repairs and replacements can be made.

  In addition, according to the embodiment of the present invention, it is possible to prevent overheating of hot water in advance and provide safety and reliability for use of the product.

It is a figure which shows the structure of the cold / hot water apparatus and water purifier which concern on embodiment of this invention. It is a figure which shows the connection structure with respect to the safety device of the water heater and water purifier which concerns on embodiment of this invention. It is a figure which shows roughly the safety device of the water heater and water purifier which concerns on other embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings so that a person having ordinary knowledge in the technical field to which the present invention belongs can easily carry out.

  The present invention can be realized in various different forms and is not limited to the embodiments described herein. In the drawings, unnecessary portions are omitted to clearly describe the present invention.

  Drawing 1 is a figure showing the structure of the water heater and water purifier concerning the embodiment of the present invention.

  Referring to FIG. 1, the cold water heater and the water purifier according to the embodiment of the present invention include a housing 20, a cold water tank 30, a cooling device 40, and a hot water tank 50.

  The housing 20 is formed in a predetermined shape, for example, a rectangular parallelepiped shape, and a water guard 21 that stably supports the placement of the water tank 10 is installed on the upper surface portion.

  An air filter that discharges air from the cold water tank 30 is installed at a predetermined position of the water guard 21 so that water flows out of the water tank 10 smoothly.

  The cold water tank 30 has a certain volume, and is supplied with water flowing out of the water tank 10 placed on the water guard 21 to store this water. A cooling device 40 capable of cooling the stored water is coupled to the lower outside of the cold water tank 30.

  The cold water tank 30 is provided with a separation plate 31 at an intermediate portion inside thereof. The cold water tank 30 has a separation plate 31 in between, normal temperature water is stored in the upper part thereof, and cold water cooled to a predetermined temperature set by the cooling device 40 is stored in the lower part thereof.

  The chilled water cooled to a predetermined temperature set in the chilled water tank 30 is discharged through a chilled water cock 35 coupled to one end of a pipe line 34 connected to the chilled water tank 30.

  The cooling device 40 cools the water stored in the lower part of the cold water tank 30 to a set temperature by heat exchange.

  The cooling device 40 includes a compressor 41 that compresses the refrigerant at high pressure, a condenser 42 that liquefies the high-pressure refrigerant compressed by the compressor 41, a capillary tube 43 that decompresses the refrigerant liquefied by the condenser 42, and a lower part of the cold water tank 30. And an evaporator 44 that evaporates the refrigerant supplied from the capillary tube 43 and cools the water stored in the lower part of the cold water tank 30 by heat exchange.

  The cooling device 40 may be applied with a thermoelectric cooling element instead of the refrigeration cycle having such a configuration.

  The hot water tank 50 may have a certain volume and may be positioned below the cold water tank 30, and normal temperature water in the cold water tank 30 is supplied via a pipe line 33 connected to the separation plate 31 of the cold water tank 30. Store room temperature water. A hot water cock 53 is connected to the hot water tank 50 via a pipe line 52.

  A heating device 51 is installed at a predetermined position outside the hot water tank 50. The heating device 51 heats room temperature water stored in the hot water tank 50 to a predetermined temperature.

  A normal heater may be applied to the heating device 51.

  A second temperature controller 54 is installed at a predetermined position outside the hot water tank 50 so that the temperature of the normal temperature water stored in the hot water tank 50 is constantly maintained at a set constant temperature.

  The second temperature controller 54 may be a bimetal or a temperature sensor, and has a function of constantly maintaining the temperature of room temperature water stored in the hot water tank 50 at about 83 to 98 ° C.

  The second temperature controller 54 cuts off the electricity supplied to the heating device 51 when the temperature of the hot water tank 50 exceeds the first reference temperature set by the heating device 51, and the temperature of the hot water tank 50 is set. If the temperature falls below the second reference temperature, electricity is supplied to the heating device 51.

  The second temperature controller 54 supplies or shuts off electricity to the heating device 51 by hysteresis with respect to the temperature of the hot water tank 50.

  The set temperature range of the second temperature controller 54 may be varied.

  Further, a third temperature controller capable of blocking the occurrence of overheating by the heating device 51 when there is no water stored in the hot water tank 50 at a predetermined position outside the hot water tank 50 or when an abnormal overheating occurs. 55 is installed.

  The third temperature controller 55 may be a bimetal or a temperature sensor. When there is no water stored in the hot water tank 50 or when an abnormal overheating occurs, the temperature of the hot water tank 50 is detected as about 100 to 130 ° C. When it is done, it opens and shuts off the electricity supplied to the heating device 51.

  The third temperature controller 55 cuts off the electricity supplied to the heating device 51 when the temperature of the hot water tank 50 exceeds the third reference temperature set by the heating device 51, and the temperature of the hot water tank 50 is set. If the temperature falls below the fourth reference temperature, electricity is supplied to the heating device 51.

  The temperature range that the third temperature controller 55 determines as overheating may be varied.

  Therefore, a fire due to overheating and a PL (Product Liability) accident can be prevented in advance.

  In the cold water tank 30, an overheat circuit breaker 32 is installed at a predetermined position outside the upper portion of the separation plate 31 where normal temperature water is stored.

  The overheat circuit breaker 32 installed at a predetermined position outside the upper part of the cold water tank 30 monitors the temperature of the normal temperature water stored in the upper part of the separation plate 31, and the reference set by increasing the temperature of the normal temperature water. If it exceeds the temperature, it is determined that the hot water heated by overheating of the hot water tank 50 is flowing back through the pipe 33, and in order to prevent a PL accident due to overheating of the hot water tank 50 in advance, the heating device 51 Shut off the electricity supplied to the.

  A manual return temperature controller (Thermal Fuse) may be applied to the overheat circuit breaker 32, and if the temperature of the room temperature water in the cold water tank 30 is detected as a set constant temperature, for example, 50 to 80 ° C., the circuit breaks. The electricity supplied to the heating device 51 is cut off.

  The range of the disconnection reference temperature of the overheat circuit breaker 32 may be variously changed according to the setting of the user.

  That is, in the overheat circuit breaker 32, the hot water tank 50 is overheated due to a failure of the second temperature controller 54 and the third temperature controller 55 installed in the hot water tank 50, and the hot water heated thereby passes through the pipe line 33. When the temperature of the room temperature water rises and exceeds the set temperature, the electricity supplied to the heating device 51 is basically changed. Shut off.

  Therefore, it prevents PL accidents in advance and provides reliability for the use of water heaters and water purifiers.

  FIG. 2 is a diagram showing a connection structure for a safety device for a chiller / heater and a water purifier according to an embodiment of the present invention.

  Referring to FIG. 2, the connection structure of the safety device for the chilled water heater and the water purifier according to the embodiment of the present invention includes a power cord 101, a compressor 102, a first temperature controller 103, a switch 104, a heater 105, a second A temperature controller 106, a third temperature controller 107, and an overheat circuit breaker 108 and an indicator lamp 109 are included.

  The power cord 101 is connected to an ordinary power source by a plug-in system, and supplies necessary electricity to each load element configured in the chiller / heater and the water purifier.

  The compressor 102 compresses the refrigerant, and circulates the compressed refrigerant to the cooler, thereby cooling the room temperature water stored in the cold water tank under a set temperature condition.

  The first temperature controller 103 has a function of detecting the temperature of cold water and supplying or shutting off electricity to the compressor 102 in accordance with a set temperature condition.

  Therefore, the compressor 102 is turned on / off by electricity supplied via the first temperature controller 103, and constantly maintains the temperature of the cold water at a set constant temperature.

  The compressor 102 and the first temperature controller 103 are connected in series and are connected to both ends of the power cord 101.

  The heater 105, the second temperature controller 106, the third temperature controller 107, and the overheat circuit breaker 108 are connected in series and connected to both ends of the power cord 101.

  The switch 104 is turned on / off by the user so that the use of heated hot water can be selected.

  The heater 105 is coupled to a predetermined position outside the hot water tank in a predetermined form, and heats the water stored in the hot water tank.

  The second temperature controller 106 is installed at a predetermined position outside the hot water tank, and has a function of supplying or shutting off electricity to the heater 105 according to the temperature of the hot water heated by the heater 105.

  The second temperature controller 106 functions to constantly maintain a constant temperature at which the temperature of the heated hot water is set. For example, the electricity supplied to the heater 105 is controlled so that the temperature of the heated hot water can be maintained at 80 to 98 ° C.

  The third temperature controller 107 determines that there is no water stored in the hot water tank when the temperature of the hot water tank rises above a set temperature, and in order to prevent the hot water tank from overheating, Shut off the electricity supplied to the.

  If the temperature of the hot water tank is detected as, for example, 100 to 130 ° C., the third temperature controller 107 determines that there is no water stored in the hot water tank or abnormal overheating occurs, and the heater 105 Shut off the electricity supplied to the plant to prevent fire and PL accidents in advance.

  The overheat circuit breaker 108 detects the temperature of the room temperature water stored in the upper part of the separator of the cold water tank, and if it is determined that the temperature of the room temperature water exceeds the set constant temperature, It is determined that the hot water has flowed back, and the electricity supplied to the heater 105 is cut off in order to prevent the hot water tank from continuing overheating.

  A manual return temperature controller may be applied to the overheat circuit breaker 108. When the temperature of the room temperature water stored in the upper part of the separation plate 31 of the cold water tank exceeds a set constant temperature, the overheat circuit breaker 108 is disconnected, and the heater 105 Shut off the electricity supplied to the.

  The overheat circuit breaker 108 is disconnected when the room temperature water temperature of the cold water tank is detected as 50 to 80 ° C., for example, and interrupts electricity supplied to the heater 105.

  The range of the disconnection reference temperature of the overheat breaker 108 may be variously changed according to the setting of the user.

  The overheat circuit breaker 108 includes a second temperature controller 106 and a third temperature controller installed in the hot water tank due to overcurrent hydraulic pressure due to the progress of durability of the water cooler and water purifier and internal and external factors, and other causes. When the temperature adjustment function is lost due to the failure of the heater 107, the heater 105 is overheated in advance.

  In other words, the overheat circuit breaker 108 is configured such that the hot water tank is overheated due to a failure of the second temperature controller 106 and the third temperature controller 107 installed in the hot water tank, and the hot water heated thereby is cooled by the cold water tank via the pipe line. When the temperature of this room temperature water rises and exceeds the set temperature, the wire is disconnected and the electricity supplied to the heater 105 is basically cut off.

  If the temperature rise change value per unit time of room temperature water stored in the upper part of the separation plate of the cold water tank exceeds the set value, the overheat breaker 108 has hot water flowing backward due to overheating of the hot water tank. Is determined.

  Therefore, PL accidents can be prevented in advance, and reliability can be provided for the use of water heaters and water purifiers.

  The display lamp 109 includes a first lamp (LED1) indicating whether electricity can be supplied, a second lamp (LED2) indicating a heater operation, and a third lamp (LED3) indicating a cooling operation, and includes a cooling / heating device and a water purifier. Shows the general behavior.

  FIG. 3 is a diagram schematically showing a chiller / heater safety device according to another embodiment of the present invention.

  Referring to FIG. 3, a chiller / heater stabilizer according to another embodiment of the present invention includes a setting unit 201, a first temperature detection unit 202, a second temperature detection unit 203, and a third temperature detection unit. 204, the 4th temperature detection part 205, the control part 206, the display part 207, the 1st drive part 208, and the 2nd drive part 209 are included.

  The setting unit 201 detects the operating conditions of the water heater and the water purifier set by the user and provides them to the control unit 206.

  In the setting unit 201, various operating conditions by use including power on / off by use of the chiller / heater and water purifier, temperature condition of the chilled water, availability of the hot water, temperature condition of the hot water, availability of the sleep function, etc. It may be set.

  The setting unit 201 may be installed at a predetermined position on the front panel or the rear panel of the chiller / heater and the water purifier, or may be configured integrally with the display unit 207 as a touch panel.

  The first temperature detection unit 202 is installed at a predetermined position outside the lower part of the separation plate of the cold water tank, detects the temperature of the cold water cooled by the operation of the cooling device, and provides information about the detected temperature to the control unit 206.

  The second temperature detection unit 203 is attached to the first position of the hot water tank, detects the temperature of the hot water heated by the operation of the heating device, and provides information about the temperature to the control unit 206.

  The third temperature detection unit 204 is attached to the second position of the hot water tank, detects the temperature of the hot water tank heated by the operation of the heating device, and provides information to the control unit 206.

  The fourth temperature detector 205 is installed at a predetermined position outside the upper part of the separator plate of the cold water tank, detects the temperature of the normal temperature water stored on the upper part of the separator plate of the cold water tank, and sends information on the detected temperature to the controller 206. provide.

  The control unit 206 controls the operation for maintaining the temperatures of the cold water and the hot water and the general operation according to the conditions set by the setting unit 201.

  The control unit 206 controls the operation of the compressor by the first driving unit 208 according to the temperature of the cold water detected by the first temperature detection unit 202, and maintains the temperature of the cold water at a set temperature.

  The control unit 206 controls the amount of current supplied to the heater by the second driving unit 209 according to the temperature of the hot water detected by the second temperature detection unit 203, and maintains the temperature of the hot water at the set temperature. .

  If the temperature of the hot water tank detected by the third temperature detection unit 204 is equal to or higher than the set temperature, the control unit 206 determines that there is no water stored in the hot water tank or an abnormally high temperature state, thereby preventing overheating. In order to prevent this, the second drive unit 209 turns off the heat generation operation of the heater.

  The controller 206 adjusts the temperature of the hot water tank if the temperature of the room temperature water stored in the upper part of the separation plate of the cold water tank detected by the fourth temperature detecting unit 205 exceeds a predetermined temperature. It is determined that hot water overheated beyond the function is flowing back to the cold water tank, and the electricity supplied to the heater is cut off by the second drive unit 209.

  At this time, the control unit 206 outputs a message notifying that there is an abnormality in the temperature adjustment function of the hot water tank through the display unit 207 so that quick repair and replacement can be performed.

  Under the control of the control unit 206, the display unit 207 displays the usage conditions and the current operation state of the chiller / heater and the water purifier set by the user in a predetermined manner.

  In addition, the display unit 207 outputs a corresponding message when an abnormality occurs in an arbitrary part in the use of the water cooler and the water purifier according to the present invention so that quick repair and replacement can be performed.

  The first driving unit 208 operates the compressor according to the control signal output from the control unit 206, and cools the room temperature water stored in the lower part of the cold water tank to a set temperature condition.

  The second drive unit 209 adjusts the amount of current supplied to the heater according to the control signal output from the control unit 206, and heats the room temperature water stored in the hot water tank to a set temperature condition.

  The safety device for a chiller / heater and a water purifier according to another embodiment of the present invention configured to include the functions as described above applies a microcomputer, and controls the temperature of room temperature water by controlling the microcomputer. The safety function is executed, and the operation is executed as follows.

  When the user selects power-on by the setting unit 201 and sets the temperature and operating conditions of the cold water and hot water, the control unit 206 starts an operation for satisfying the set operating conditions.

  The control unit 206 detects the temperature of the water stored in the lower part of the separation plate of the cold water tank by the first temperature detection unit 202, and controls the operation of the compressor by the first driving unit 208, thereby setting the temperature of the cold water. So that the temperature is maintained at a constant level.

  For example, if the temperature of the chilled water exceeds a set temperature, the compressor is operated by the first drive unit 208, the chilled water is cooled by heat exchange by circulation of the refrigerant, and the temperature of the chilled water is cooled below the set temperature. For example, the first drive unit 208 stops the operation of the compressor.

  Therefore, the compressor is turned on / off by hysteresis with respect to the temperature of the cold water so that the temperature of the cold water can be constantly maintained at the set temperature condition.

  Further, the control unit 206 detects the temperature of the hot water stored in the hot water tank by the second temperature detection unit 203, and controls the amount of current supplied to the heater by the second drive unit 209, so that the temperature of the hot water is increased. Always maintain the set temperature conditions.

  For example, if the temperature of the hot water is detected as less than the set temperature, the amount of current supplied to the heater by the second drive unit 209 is increased, and the temperature of the hot water is increased by increasing the amount of heat generated by the heater. Is detected to exceed the set temperature, the current supplied to the heater by the second driving unit 208 is cut off to stop the heat generation of the heater.

  Therefore, the heater is turned on / off by hysteresis with respect to the temperature of the hot water so that the temperature of the hot water can be constantly maintained at the set temperature condition.

  In addition, if the temperature of the hot water tank detected by the third temperature detection unit 204 is equal to or higher than the set temperature, the control unit 206 determines that there is no water stored in the hot water tank or an abnormally high temperature state, and overheats. In order to prevent this, the second drive unit 209 turns off the heat generation of the heater.

  In addition, the control unit 206 determines that the temperature of the normal temperature water stored in the upper part of the separation plate of the cold water tank detected by the fourth temperature detection unit 205 exceeds a predetermined temperature. It is determined that the hot water that has been heated more than the temperature control function is flowing back into the cold water tank, and the current supplied to the heater is cut off by the second drive unit 209.

  At this time, the control unit 206 outputs a message notifying that there is an abnormality in the temperature adjustment function of the hot water tank through the display unit 207 so that quick repair and replacement can be performed.

  Although the present invention has been described with reference to the embodiments and the drawings, the present invention is not limited thereto, and those skilled in the art to which the present invention belongs have ordinary knowledge. It goes without saying that various modifications and variations are possible within the scope of the technical idea and the appended claims.

10: Water tank 20: Housing 30: Cold water tank 32, 108: Overheat circuit breaker 40: Cooling device 50: Hot water tank 101: Power cord 102: Compressor 103: First temperature controller 104: Switch 105: Heater 106: Second temperature Controller 107: Third temperature controller 109: Indicator lamp

Claims (13)

A cold water tank that stores normal temperature water in the upper part of the separation plate installed in the middle part, and stores cold water cooled to a temperature set by a cooling device in the lower part of the separation plate;
A hot water tank for storing room temperature water of a cold water tank supplied via a pipe line connected to a separator plate of the cold water tank;
A heating device that is installed at a predetermined position outside the hot water tank and heats stored room temperature water to a set temperature,
A second temperature controller for managing electricity supplied to the heating device so that the hot water stored in the hot water tank is constantly maintained at a set temperature;
A third temperature controller that shuts off electricity supplied to the heating device when there is no water stored in the hot water tank or when abnormal overheating occurs;
If the temperature of the normal temperature water stored in the upper part of the separation plate of the cold water tank exceeds the set temperature, overheating occurs more than the temperature adjustment function of the hot water tank, and the hot water enters the normal temperature water side of the upper part of the separation plate of the cold water tank. An overheat circuit breaker that determines that the current flows backward and interrupts the electricity supplied to the heating device;
A safety device for water heaters and water purifiers, characterized by comprising:   A bimetal or a temperature sensor is applied to the second temperature controller, and the second temperature controller controls the electricity supplied to the heating device by hysteresis according to the temperature of the hot water stored in the hot water tank, thereby controlling the temperature of the hot water. The safety device for a chiller / heater and a water purifier according to claim 1, wherein the safety device is maintained at a set temperature.   The safety device for a chilled water heater and a water purifier according to claim 1, wherein a manual return temperature controller is applied to the overheat circuit breaker.   If the temperature of the room temperature water stored on the upper part of the separator plate of the cold water tank rises above a certain temperature per unit time, the overheat breaker determines that the overheat has occurred due to an abnormality in the temperature adjustment function of the hot water tank. The cooling / heating device and the water purifier safety device according to claim 1, wherein   2. The water heater and water purifier according to claim 1, wherein the overheat circuit breaker is disconnected when an abnormality in the temperature adjustment function of the hot water tank is determined and cuts off electricity supplied to the heating device. 3. Safety equipment. A compressor that compresses and circulates the refrigerant to cool the cold water stored in the cold water tank;
A first temperature controller for turning the compressor on / off according to the temperature of the cold water;
A switch for selecting whether to use hot water,
A heater for heating the hot water stored in the hot water tank;
A second temperature controller for turning on / off the heater according to the temperature of the hot water;
A third temperature controller that shuts off electricity supplied to the heater when there is no water stored in the hot water tank or when an abnormal overheating occurs;
An overheat circuit breaker that detects a temperature of room temperature water stored in a cold water tank, is disconnected if a failure of the second temperature controller is determined, and interrupts electricity supplied to the heater;
Safety equipment for water heaters and water purifiers. The compressor and the first temperature controller are connected in series, and are connected to both ends of a power cord that is plug-in connected to an ordinary power source,
The chiller / heater according to claim 6, wherein the heater, the second temperature controller, the third temperature controller, and the overheat breaker are connected in series and connected to both ends of the power cord. Water purifier safety device.   If the room temperature water stored in the cold water tank exceeds a set temperature, the overheat circuit breaker determines that a reverse flow has occurred due to overheating of the hot water stored in the hot water tank, and interrupts electricity supplied to the heater. The safety device for a chiller / heater and a water purifier according to claim 6.   The overheat circuit breaker determines that the second temperature controller has failed if the temperature change per unit time of room temperature water stored in the cold water tank exceeds a set value, and interrupts electricity supplied to the heater. The safety device for a chiller / heater and a water purifier according to claim 6.   The safety device for a chiller / heater and a water purifier according to claim 6, wherein the temperature range of the overheat breaker varies according to the setting. A setting unit for setting the operating conditions of the water heater and water purifier,
A first temperature detector for detecting the temperature of the cold water stored in the lower part of the separation plate of the cold water tank;
A second temperature detector for detecting the temperature of the hot water stored in the hot water tank;
A third temperature detector for detecting the temperature of the hot water tank;
A fourth temperature detection unit for detecting the temperature of room temperature water stored on the upper part of the separation plate of the cold water tank;
The operation of the compressor and the heater is controlled according to the temperature of the cold water detected by the first temperature detection unit and the temperature of the hot water detected by the second temperature detection unit, and the temperature of the cold water and the hot water is maintained at the set temperature. If the temperature of the room temperature water stored in the cold water tank detected by the fourth temperature detection unit exceeds the set constant temperature, overheating has occurred more than the temperature adjustment function of the hot water tank. Determining, shutting off the electricity supplied to the heater, and outputting a temperature adjustment function abnormality message of the hot water tank by the display unit;
Safety equipment for water heaters and water purifiers.   The said setting part sets the power on / off by use of a cold water heater and a water purifier, the temperature conditions of cold water and warm water, the availability of warm water, and the availability of a sleep function, The Claim 11 characterized by the above-mentioned. Water heater and water purifier safety device.   The said setting part is installed in the predetermined position of the front part panel of a water heater and a water purifier, and is comprised integrally with a display part as a touchscreen, The water heater and water purifier of Claim 11 characterized by the above-mentioned. Safety equipment.

Images