KR100613716B1 - Heating device for a heater having ptc - Google Patents

Abstract

The present invention relates to an apparatus for improving heating performance of a PTC integrated heater, and more particularly, selectively transfers heated cooling water of an engine to a heater in which a PTC element is integrated through a heater valve for opening and closing a pipe according to a predetermined temperature. As a zoom, the initial heating time of the engine is shortened, and the time for discharging the heated air from the air conditioning apparatus after the initial start through the coolant inside the rapidly heated engine is characterized.

PTC, Heater, Coolant, Valve, Radiator

Description

Heating performance improving device for PTI integrated heater {HEATING DEVICE FOR A HEATER HAVING PTC}             

1 is a cross-sectional view of a vehicle air conditioner with a built-in conventional PTI integrated heater core.

2 is a view schematically showing a conventional cooling water circulation structure.

3 is a view schematically showing a cooling water circulation structure according to the present invention.

Figure 4 is a block diagram schematically showing another cooling water circulation of the present invention.

* Description of the symbols for the main parts of the drawings *

1 valve 3 heater valve

5: control unit 7: sensor

11: first piping 13: third piping

20: heater 30: engine

40: radiator

The present invention selectively transfers the heated cooling water of the engine to the heater formed integrally with the PTC element through a heater valve for opening and closing the pipe according to a predetermined temperature, thereby reducing the initial heating time of the engine, and quickly heated engine The present invention relates to an apparatus for improving heating performance of a PTC integrated heater, which has a feature of shortening a time for discharging heated air from an air conditioning apparatus after an initial start through an internal cooling water.

In general, a car's heating system circulates inside the engine to prevent the engine from overheating, and the heated coolant circulates with the radiator to exchange heat with the outside air, while the blower blows the outside air into the room to heat the inside of the vehicle. It is a system used for elimination

That is, the heater using the coolant method is the cooling water is heated only after a predetermined time after the initial vehicle is started, the blower blows the outside air into the room when the heated coolant passes the heater, the initial heating is not In order to prevent cold air from being discharged through the cooling water, a heater that integrally forms a PTC element (PTC) is being developed.

The integrated heater generates heat by heating the PTC element through electricity, and FIG. 1 is a cross-sectional view of a vehicle air conditioner in which a PTC integrated heater is built in the related art.

As shown, the conventional PTI integrated heater forms the PTC element 220 integrally with the heater 200 in the case 108 of the vehicle air conditioner 101.

The air conditioner (101) is provided with a blower (107) forcibly supplying air to the interior of the vehicle at the inlet of the case (108) forming the outer shape, and the evaporator (109) for heat-exchanging the air at a low temperature in the rear; A heater 200 integrally provided with a positive temperature coefficient (PTC) element 220 for heat-exchanging air at a high temperature behind the evaporator 109 is formed.

In addition, the coolant circulates in the heater 200. FIG. 2 is a view schematically showing a conventional coolant circulation structure.

As shown, heater 200 and radiator 400 are interposed between engine 300 and inlet and outlet passages for cooling water circulation, respectively, and the heated coolant is heated to heater 200 and radiator 400. Heat exchange while circulating to cool the engine 300.

Therefore, the heater discharges the heated air inside the vehicle through the heating action by the PTC element and the heated cooling water of the engine.

On the other hand, a typical engine is the optimum temperature for driving the vehicle when the 70 ~ 80 ℃, for this reason the thermostat (301; thermostat) is installed in the flow path connecting the engine 300 and the radiator, The heating time of the engine is shortened by closing the flow path so that the coolant cannot circulate the radiator until the temperature rises to a certain temperature.

On the other hand, the flow path connecting the heater and the engine is always open.

However, if the air conditioner is started quickly after starting the vehicle in a low temperature winter, the heater is limited even when the PTC element is operated, and the temperature of the coolant inside the engine is too low, similar to the outside temperature. Therefore, there is a problem that the time for the first discharge of warm air is long.

In particular, when frost or frost is formed in the windshield of the vehicle early in the morning, the air is discharged to the glass window through the air conditioning apparatus, and the discharged cold air does not defrost the frost or frost smoothly.

Accordingly, the present invention has been made to solve the above problems, the present invention is equipped with a thermostat in the flow path connecting the heater and the engine so that the cooling water of the engine does not circulate to the heater until the engine is sufficiently heated By doing so, the engine is preheated to improve the engine performance and to discharge the preheated air through the air conditioner.

The present invention for achieving the above object is the first pipe to allow the coolant of the engine to move to the radiator and the second pipe to allow the coolant of the radiator to move to the engine; A third pipe for allowing the coolant of the engine to move to the PTC integrated heater and a fourth pipe for allowing the coolant of the PTC integrated heater to move to the engine; A valve for controlling the movement of the coolant to open and close the first pipe in the engine; A heater valve controlling a movement of the coolant to open and close a third pipe in the engine; A sensor provided in the engine to measure a temperature of cooling water; It provides a heating performance improving device of the PTC integrated heater, characterized in that it comprises a control unit for controlling the operation of the valve and the heater valve by recognizing the value measured by the sensor.

The heating performance improving apparatus allows the cooling water to circulate in the direction of the heater or the radiator after the engine is sufficiently heated, thereby improving the output of the engine and rapidly discharging the air to the room through the air conditioner. It will be possible to quickly remove the frost and sex that form.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

In addition, this embodiment is presented by way of example only, not limiting the scope of the present invention, the same parts as the conventional configuration uses the same reference numerals or names.

In addition, there may be various embodiments implemented through the technical idea.

3 is a view schematically showing a cooling water circulation structure according to the present invention, Figure 4 is a block diagram schematically showing another cooling water circulation of the present invention.

As shown, between the engine 30 and the radiator 40, a first pipe 11 and a second pipe 12 for circulating coolant are formed, and the first pipe 11 is a coolant engine 30 ) Acts as a flow path for moving to the radiator 40, and the second pipe 12 serves as a flow path for the coolant to move from the radiator 40 to the engine 30.

In addition, a third pipe 13 and a fourth pipe 14 are formed between the engine 30 and the heater 20 to circulate the coolant, and the third pipe 13 is a coolant in the engine 30. It serves as a flow path for moving to the heater 20, the fourth pipe 14 serves as a flow path for the coolant to move from the heater 20 to the engine 30.

Here, the heater 20 uses a heater in which the PTC element is integrally formed.

On the other hand, the valve (1) is formed to control the movement of the coolant moving through the first pipe (11) in the engine 30, the valve (1) is a general temperature of 70 in the engine 30 When the temperature is less than ˜80 ° C., the first pipe 11 is closed to block the cooling water of the engine from moving to the radiator 40. When the temperature inside the engine 30 is 70 ° C. to 80 ° C. or more, the first pipe 11 is closed. Open to allow the coolant of the engine to move to the radiator 40.

In addition, a heater valve 3 is formed to control the movement of the coolant moving through the third pipe 13 in the engine 30, and the heater valve 3 is usually a temperature inside the engine 30. Is below 40 ° C., closes the first pipe 11 to block the cooling water of the engine from moving to the heater 20, and opens the third pipe 13 when the temperature inside the engine 30 is 40 ° C. or more. Allow the coolant of the engine to move to the heater 20.

On the other hand, the engine is provided with a sensor (7) for measuring the temperature change of the cooling water by the internal temperature, that is, the heat generated during the combustion of the fuel, the control unit 5 for recognizing the value measured by the sensor (7) It is preferable to further include), in this case, the control unit controls the respective valves (1, 3) in accordance with the temperature inside the engine to open and close the first pipe 11 or the third pipe (13).

The action and effect of the present invention made of the above structure is as follows.

When the vehicle is started, the fuel is heated while the fuel is combusted in the engine 30. The control unit 5 controls the valve 1 according to a signal of the sensor 7 measuring the temperature of the coolant heated in the engine 30. And control the heater valve (3).

That is, when the internal temperature of the engine is 70 to 80 ° C. or more, when the first pipe 11 is opened through the valve 1, the heated coolant inside the engine is cooled by the external air while circulating the radiator and flows back into the engine. As a result, the internal temperature of the engine is maintained at about 70-80 ° C., which is an optimal temperature for driving the vehicle.

On the other hand, when the engine internal temperature is 40 ° C or more, when the third pipe 13 is opened through the heater valve 1, the heated coolant inside the engine circulates the heater 20 to the inside of the vehicle by a separate blower The heated air is discharged.

At this time, when the engine internal temperature is less than 40 ° C., since the coolant inside the engine circulates inside the engine without moving in the direction of the radiator or the heater, the temperature inside the engine is optimal for driving the engine within a short time after the vehicle is started. The temperature of can be reached.

In addition, by allowing the circulation of the coolant in the direction of the heater when the engine internal temperature is 40 ℃ or more, after the start of the winter start to discharge the heated air through the air conditioning device within the vehicle within a short time, formed on the windshield of the vehicle in a short time It will be able to remove frost and sexuality.

Here, when the engine coolant temperature is 40 ° C. or more, sufficiently warm air may be discharged to the room through a blower.

 As described above, the present invention prevents the coolant circulation inside the engine until the engine reaches a predetermined temperature or more, thereby improving the efficiency of the engine by reaching the optimum temperature for driving the engine within a short time. .

In particular, since the temperature inside the engine is quickly heated, it reduces the time that the heated air can be discharged through the air conditioning unit after the engine is started, so that the temperature inside the vehicle can be quickly increased in winter, Formed frost or frost also has the advantage of being able to quickly remove.

Claims (3)

A first pipe for allowing the coolant of the engine to move to the radiator and a second pipe for allowing the coolant of the radiator to move to the engine; A third pipe for allowing the coolant of the engine to move to the PTC integrated heater and a fourth pipe for allowing the coolant of the PTC integrated heater to move to the engine; A valve for controlling the movement of the coolant to open and close the first pipe in the engine; A heater valve controlling a movement of the coolant to open and close a third pipe in the engine; A sensor provided in the engine to measure a temperature of cooling water; It is configured to include a control unit for controlling the operation of the valve and the heater valve by recognizing the value measured by the sensor, The valve is heated when the cooling water temperature of the engine is 70 ~ 80 ℃ or more, the heating performance improving apparatus of the PTC integrated heater. delete The heating performance improving apparatus of claim 1, wherein the heater valve is opened when the coolant temperature of the engine is 40 ° C. or higher.

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