KR100579439B1 - Liquid heater using the positive temperature coefficient thermistor - Google Patents

Abstract

The present invention relates to a hot water heater using a positive temperature coefficient (PTC) thermistor, and more particularly, by separately integrating a heater that uses a PTC thermistor as a heat source and a control unit for controlling the temperature of the hot water, a separate control unit is required. It is possible to slim down the heater by using a PTC thermistor, and to prevent the risk of fire by using the function of instantaneous temperature rise using the PTC thermistor and the constant temperature heating characteristic that does not generate heat above a certain temperature of the PTC thermistor. By mounting a printed circuit board (PCB) capable of rapidly raising the water flowing in the metal tube coupled to the heater block and controlling the temperature of the water raised to a constant temperature, the temperature controlled water can be stably supplied The present invention relates to a hot water heater using a positive temperature coefficient (PTC) thermistor.

The present invention is attached to the aluminum guide plate and the heat prevention sensor to cut off the power when the heater is overheated; A heater part including a heating part for raising the temperature by a PTC thermistor, an insulating material for insulating the terminal plates at both ends of the heating part, and an aluminum guide plate for protecting the metal pipe mounted on the outer surface of the insulating material and protecting the heating part are combined. A control unit including a first case, an external power connection unit for connecting with an external power source, and a printed circuit board (PCB) for controlling the temperature of water; A second case to which a water tank equipped with a temperature sensor is coupled to sense a temperature of flowing water in the metal tube formed in the heater block in the first case, a locking jaw formed in the first case and the second case; It characterized in that it comprises a first case and the second case is coupled by a hook formed.

Positive Temperature Coefficient (PTC) Thermistor, 1st Case, 2nd Case, Heater, Heater, Terminal Board, Insulation Material, Printed Circuit Board (PCB), Temperature Sensor, Overheat Protection Sensor, Water Tank, Control Unit, Clamp, Hanging Jaw, Hook, integrated, slimmer.

Description

Liquid heater using the positive temperature coefficient thermistor}

1 is a perspective view showing the appearance of a heater according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing the appearance and internal structure of the heater according to an embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

25.Aluminum guide plate 40 ... PTC thermistor

60 ... Insulation 70 ... Second Case

71 ... hook 75 ... first case

76 ... Jump 350 350.Heater

345.Heating section 400 ... Water tank

410 ... temperature sensor 430 ... overload protection sensor

500 ... PCB 510 ... External power connection

520 control unit

The present invention relates to a hot water heater using a positive temperature coefficient (PTC) thermistor, and more particularly, by separately integrating a heater that uses a PTC thermistor as a heat source and a control unit for controlling the temperature of the hot water, a separate control unit is required. It is possible to slim down the heater by using a PTC thermistor, and to prevent the risk of fire by using the function of instantaneous temperature rise using the PTC thermistor and the constant temperature heating characteristic that does not generate heat above a certain temperature of the PTC thermistor. By mounting a printed circuit board (PCB) capable of rapidly raising the water flowing in the metal tube coupled to the heater block and controlling the temperature of the water raised to a constant temperature, the temperature controlled water can be stably supplied The present invention relates to a hot water heater using a positive temperature coefficient (PTC) thermistor.

The electric heating element used as a heating source in the present invention is a positive temperature coefficient thermistor (PTC). When the electricity is applied to the constant temperature coefficient thermistor in the electric heating element is a safe heating element that generates heat by Joule heat to replace the nichrome wire.

The constant temperature coefficient thermistor has a property of blocking electric current when the transient current flows by a constant power supply for a very short time, and thus has a property of blocking current, so that the use of an element in a shadow mask of a television or a preheater of a vehicle It is applied to components such as heaters, heaters, leisure heaters, household bidets, water heaters, hot water heaters, air conditioners, refrigerators, and auxiliary heaters, and is also used in hair dryers and clothes dryers.

By the way, the heating source of the hot water heater conventionally implemented is comprised from a nichrome wire, a ceramic heater, and a sheath heater. The hot water heater using the nichrome wire as a heating source is always exposed from the danger of fire, which may cause a problem in safety. In the case of a hot water heater using ceramic as a heating source, when a heater is used, a low temperature liquid directly contacts the surface of the ceramic hot water heater, and the heater made of ceramic is weak from thermal shock, which causes the ceramic heater to be destroyed and the high energy generated when the heater is damaged. Serious problems can arise.

Therefore, there is no need to separate the control unit, so that the heater can be slimmed down, the fire hazard can be prevented, and a hot water heater capable of stably supplying the temperature-controlled hot water is required.

The present invention is to solve the above problems, by integrating the heater unit using the PTC thermistor as a heat source and the control unit for controlling the temperature of the hot water, there is no need to separate the control unit, the constant temperature coefficient that can slim the heater The purpose is to provide a hot water heater using a thermistor.

In addition, another object of the present invention is to use a constant temperature coefficient thermistor that can prevent the risk of fire by using the PTC thermistor as a heat source by using the function of instantaneous temperature rise and the constant temperature heating characteristic that does not generate heat above a certain temperature of the PTC thermistor. It is to provide a hot water heater.

In addition, another object of the present invention is by mounting a printed circuit board (PCB) in the control unit that can rapidly raise the water flowing in the metal tube coupled to the heater block including the PTC thermistor and control the temperature of the water raised to a certain temperature, The present invention provides a hot water heater using a constant temperature coefficient thermistor that can stably supply temperature-controlled hot water.

In order to achieve the above object, the present invention is attached to the aluminum guide plate and the anti-overheat sensor to cut off the power when overheating the heater; A heater part including a heating part for raising the temperature by a PTC thermistor, an insulating material for insulating the terminal plates at both ends of the heating part, and an aluminum guide plate for protecting the metal pipe mounted on the outer surface of the insulating material and protecting the heating part are combined. A control unit including a first case, an external power connection unit for connecting with an external power source, and a printed circuit board (PCB) for controlling the temperature of water; A second case to which a water tank equipped with a temperature sensor is coupled to sense a temperature of flowing water in the metal tube formed in the heater block in the first case, a locking jaw formed in the first case and the second case; It characterized in that it comprises a first case and the second case is coupled by a hook formed.

In the present invention, the first case is formed with a hole in which the suction port and the discharge port of the metal tube coupled to the heater block can protrude to the outside, the second case the suction port and the discharge port of the water tank protrudes to the outside It is characterized in that the possible holes are formed.

In the present invention, the heater block to be mounted to the first case is characterized in that the support is fixed by the fastening clamp is formed.

In addition, in the present invention, the water tank is formed with a suction port and a discharge port, the direction of the suction port and the discharge port is characterized in that the coupling hole which can be combined with the temperature sensor is formed.

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

1 is a perspective view showing the appearance of the heater according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the appearance and internal configuration of the heater according to an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, the hot water heater 1000 using the constant temperature coefficient thermistor may include a first case 75, an overheat prevention sensor 430, a heater 350, a heat generator 345, and a PTC. Thermistor 40, insulation 60, aluminum guide plate 25, the second case 70, the control unit 520, external power connection 510, printed circuit board (PCB) 500, temperature sensor 410 ), The water tank 400, the locking jaw 76 and the hook 71 and the like.

The technical means for configuring the hot water heater using the constant temperature coefficient thermistor of the present invention will be described as follows. In the following description of the present invention, a detailed description of related known functions or configurations is unnecessary. If it is determined that it can be blurred, the detailed description will be omitted.

The first case 75 is attached to the aluminum guide plate 25 and the anti-overheat sensor 430 to cut off the power when the heater is overheated; The heat generating part 345 which raises temperature by the PTC thermistor 40, the insulating material 60 which insulates the terminal board 30 of the both ends of the said heat generating part, and the metal pipe 10 attached to the outer surface of the said insulating material The heater unit 350 including the aluminum guide plate 25 to protect and protect the heat generating unit is coupled.

The heater unit 350 has multiple layers of metal pipes 10 forming a flow path at 180 °, and a plurality of aluminum tubes 20 are coupled to the bent metal pipe 10 to form a heater block. When the metal tube 10 of the aluminum tube 20 is combined with the aluminum tube 20 to realize a thermal conductivity by maximizing the thermal efficiency is partially compressed to a flat surface 11, the upper end and the lower end of the metal tube 10 The aluminum guide plate 25 is coupled, which is coupled to protect the portion corresponding to the last ply of the metal tube 10. At this time, the aluminum tube 20 is formed with a coupling groove 21 that can be combined with the metal tube 10 in order to maximize the thermal conductivity with the metal tube 10.

In addition, the aluminum tube 20 forming the heater block has been described only for one in order to help the understanding of the configuration of the present invention, which is not limited to the present invention by selectively configuring a plurality in accordance with the capacity to use the heater It is known in advance that it can be done.

And the insertion hole 22 of the aluminum tube 20 is inserted into the PTC thermistor 40, the heat generating portion 345 is integrated with the guide 50 and the terminal plate 30 is to be stably mounted. The heating element for heating the heating unit 345 to increase the temperature is composed of a positive temperature coefficient thermistor (PTC) and the positive temperature coefficient thermistor is connected in series, parallel connection, serial and history Any of these mixed connections may be possible. It will also be possible to mount PTC thermistors and metal resistance heating elements in combination.

The heating unit 345 is fixed to each of the PTC thermistors 40 are positioned in a plurality of position fixing grooves 51 provided in the guide 50 and then fixed in position fixing grooves 51 of the guide 50. The terminal plate 30 having electrical characteristics is brought into contact with both electrode surfaces of the PTC thermistor 40. At this time, the insulating material 60 is attached to the other side of the terminal plate 30 that is not in contact with the PTC thermistor 40, which serves to protect in order to prevent damage that may occur from electrical leakage. It is to carry out.

In addition, the terminal 31 is integrated at one end of the terminal plate 30, which is for easily supplying power and stably supplying power, and in this case, the heater block formed by combining a plurality of overheat prevention sensors 430. Is attached to act as a safety device to cut off the power when the heater is overheated. The formed heater block is mounted on the first case 75 and the inlet 12 and the outlet 13 of the metal tube forming the flow path protrude out of the first case 75. In this case, the heater block mounted on the first case 75 is formed to be supported and fixed by a separate fastening clamp 80.

The second case 70 includes a controller 520 including an external power connector 510 that can be connected to an external power source, a printed circuit board (PCB) 500 that can control the temperature of water, and ; The water tank 400 equipped with the temperature sensor 410 is coupled to detect the temperature of the flowing water in the metal tube formed in the heater block in the first case.

In the control unit 520, a printed circuit board (PCB) 500 is mounted in the second case 70, and a water tank 400 having an inlet 402 and an outlet 401 is provided in the second case 70. Is coupled to, the inlet 402 and the outlet 401 of the water tank 400 protrudes out of the second case (70). At this time, the water tank 400 has a separate coupling groove 403 for mounting the temperature sensor 410 in addition to the suction port 402 and the discharge port 401, the temperature sensor 410 is mounted to the water temperature Is detected by the printed circuit board (PCB) (500).

In addition, the control unit 520 includes an external power connection unit 510 that can be connected to an external power source.

The heater unit 350 and the control unit 520 are coupled to each other by the locking jaw 76 of the first case 75 and the hook 71 of the second case 70. In this case, a separate connection wire (not shown) configured to transfer power applied by the heater to the printed circuit board (PCB) 500 is configured.

In addition, the discharge port 13 of the metal tube 10 protruding from the first case 75 and the suction port 402 of the water tank 400 protruding from the second case 70 are connected by the silicon tube 420. To form an integrated hot water heater (1000).

Therefore, the integrated hot water heater 1000 is safe from the risk of fire by using PTC thermistor which does not generate instantaneous heating and heat above a certain temperature as a heat source, and can supply constant water stably to improve the reliability and efficiency of the product. By doing so, it is possible to maximize the satisfaction on use to supply hot water at a desired temperature.

By using the constant temperature coefficient thermistor characteristics, ideal efficiency can be obtained when applied as an electric heating element such as a vehicle preheater, a heater, a leisure heater, a bidet, a water heater, a hot water heater, an air conditioner, a refrigerator, and an auxiliary heater of a home.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above-described embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. .

As described above, the hot water heater using the constant temperature coefficient (PTC) thermistor of the present invention has the following effects.

First, the present invention integrates a heater that uses a PTC thermistor as a heat source and a controller that controls the temperature of hot water, thereby eliminating the need to separate the controller, thereby making the heater slimmer.

Second, the present invention can prevent the risk of fire by using the function of the instantaneous temperature rise using the PTC thermistor and the constant temperature heating characteristic that does not generate heat above a certain temperature of the PTC thermistor.

Third, the present invention controls the temperature by mounting a printed circuit board (PCB) in the control unit that can rapidly raise the water flowing in the metal pipe coupled to the heater block including the PTC thermistor and control the temperature of the water raised to a certain temperature, Hot water can be stably supplied.

Claims (4)

In a hot water heater using a constant temperature coefficient thermistor, An overheat prevention sensor attached to the aluminum guide plate to cut off the power when the heater is overheated; A heater part including a heating part for raising the temperature by a PTC thermistor, an insulating material for insulating the terminal plates at both ends of the heating part, and an aluminum guide plate for protecting the metal pipe mounted on the outer surface of the insulating material and protecting the heating part are combined. A control unit including a first case, an external power connection unit for connecting with an external power source, and a printed circuit board (PCB) for controlling the temperature of water; A second case to which a water tank equipped with a temperature sensor is coupled to sense a temperature of flowing water in the metal tube formed in the heater block in the first case, a locking jaw formed in the first case and the second case; Hot water heater using a constant temperature coefficient thermistor, characterized in that the first case and the second case is coupled by a hook formed. The method of claim 1, The first case is formed with a hole in which the inlet and the discharge port of the metal tube coupled to the heater block can protrude to the outside, the second case is formed with a hole in which the inlet and discharge port of the water tank can protrude to the outside Hot water heater using a constant temperature coefficient thermistor, characterized in that. The method of claim 1, The heater block mounted to the first case is a hot water heater using a constant temperature coefficient thermistor, characterized in that the support clamp is formed by a fastening clamp. The method according to claim 1 or 2, The water tank is formed with a suction port and a discharge port, the direction of the suction port and the discharge port, the hot water heater using a constant temperature coefficient thermistor, characterized in that the coupling hole which can be combined with the temperature sensor is formed.

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