KR20220124448A - Auto defogging apparatus and method using Peltier element - Google Patents

Abstract

The present invention relates to an automatic defog apparatus using a Peltier element and a method thereof. The automatic defog apparatus using a Peltier element according to the present invention comprises: an input unit collecting temperature and humidity information inside and outside the vehicle; a memory storing a program providing an automatic defog function using the temperature and humidity information; and a processor executing the program, wherein the processor controls power supply to the Peltier element placed on a vehicle window according to temperature and humidity information analysis results. The automatic defog apparatus using the Peltier element considers space, noise, efficiency, and accuracy.

Description

Auto defogging device and method using Peltier element TECHNICAL FIELD

The present invention relates to an auto defogging apparatus using a Peltier element and a method therefor.

During vehicle operation, depending on the temperature difference between the outside and the inside of the vehicle, fogging and frost may occur on the vehicle window.

According to the prior art, an auto defog function is provided by a blowing method or a heating element method.

The ventilation method detects the temperature and humidity and operates the air conditioner when the standard value is satisfied, switches to the outside air mode, changes the wind direction to the vehicle window, increases the air volume of the air conditioning blower, operates the air conditioner, and uses cold wind to the surface temperature of the vehicle window Adjust and remove fogging (Republic of Korea Patent Publication No. 10-1315708).

The heating element method detects temperature and humidity and supplies power to the graphene heating element inserted in the vehicle window when the standard value is satisfied, controls the vehicle window surface temperature using the conductivity (heat) and thermal conductivity of the graphene heating element, and turns on/off the power Controls the heating temperature through OFF (Republic of Korea Patent Publication No. 10-1901353).

However, according to the prior art, since it can be applied only where there is a vent, there is a problem in that it is difficult to apply the auto defog function to a window on a vehicle door side where the space is narrow due to the need for a ventilation space.

In addition, according to the prior art, there is a problem that noise is generated due to the generation of strong blowing, it is difficult to use immediately upon departure, and there is an inconvenience according to the required time, and there is a problem that the power ON/OFF control is poor in precision.

The present invention has been proposed to solve the above-described problems, and an object of the present invention is to provide an auto defogging apparatus and method using a Peltier device in consideration of space, noise, efficiency and precision.

The present invention relates to an auto defogging apparatus using a Peltier element and a method therefor.

The auto defogging device using the Peltier element according to the present invention includes an input unit for collecting temperature and humidity information inside and outside the vehicle, a memory storing a program providing an auto defogging function using the temperature and humidity information, and a processor for executing the program And, the processor controls to supply power to the Peltier device disposed on the vehicle window according to the temperature and humidity information analysis result.

The processor supplies power to the Peltier element disposed on the vehicle window of the double junction structure, and controls so that the heating surface and the cooling surface of the Peltier element are set according to the power stage.

When the processor determines that it is a fogging or frost generation condition according to the analysis result of the temperature and humidity information, it provides a signal for controlling the current direction and the current strength.

When the internal temperature of the vehicle is higher than the external temperature according to the analysis result, the processor supplies power so that the heating surface of the Peltier element is the same as the external glass surface and the cooling surface of the Peltier element is the same as the internal glass surface, and according to the analysis result, the power is supplied to the outside of the vehicle When the temperature is higher than the internal temperature, power is supplied so that the cooling surface of the Peltier element is identical to the external glass surface, and the heating surface of the Peltier element is identical to the internal glass surface.

The processor provides a signal for controlling the current strength using the variable resistor.

Heat and cooling by the Peltier element is transmitted through a transparent heat-conducting material film disposed in the window.

The auto defogging method using the Peltier device according to the present invention comprises the steps of (a) collecting temperature and humidity information inside and outside the vehicle, (b) analyzing the temperature and humidity information to set a control signal for auto defogging, and (c) ) supplying power to the Peltier device according to the control signal, and controlling the strength of the current to perform auto defog.

Step (b) sets the power stage applied to the Peltier device disposed on the vehicle window of the double junction structure.

In step (b), according to the analysis result for the temperature and humidity information, when the vehicle internal temperature is higher than the external temperature, the power stage is set so that the heating surface of the Peltier element is the same as the external glass surface, and the cooling surface of the Peltier element is the same as the internal glass surface. When the vehicle external temperature is higher than the internal temperature, the power supply stage is set so that the cooling surface of the Peltier element is identical to the external glass surface, and the heating surface of the Peltier element is identical to the internal glass surface.

In step (b), when the fogging or frost generation condition is confirmed according to the analysis result of the temperature and humidity information, a signal for controlling the strength of the current is generated.

In step (b), the variable resistor is adjusted so that a preset current is applied by comparing the difference in temperature and humidity inside and outside the vehicle with a preset matrix.

In step (c), auto defog is performed by transferring heat and cooling by the Peltier element through a transparent heat-conducting material film disposed in the vehicle window.

According to the present invention, there is an effect of solving the space constraint problem of the blowing method by using the Peltier element and the transparent heat-conducting material film.

In addition, there is an effect of solving the noise problem of the existing blowing method, and removing fogging and frost by precise control of the degree of heat dissipation and cooling by adjusting the intensity of the current rather than on/off.

In addition, it is possible to increase the efficiency by simultaneously adjusting the internal and external temperature according to the surrounding conditions, and it is possible to use the vehicle front or door side window as a display. It is possible to apply

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 shows an auto defog device using a Peltier device according to an embodiment of the present invention.
2a to 2d show an auto defog system using a Peltier device according to an embodiment of the present invention.
3 shows an auto defog method using a Peltier device according to an embodiment of the present invention.

The above and other objects, advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the following embodiments are intended for those of ordinary skill in the art to which the present invention pertains. It is only provided to easily inform the composition and effect, and the scope of the present invention is defined by the description of the claims.

Meanwhile, the terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” means that a referenced component, step, operation, and/or element is the presence of one or more other components, steps, operations and/or elements. or added.

1 shows an auto defog device using a Peltier device according to an embodiment of the present invention.

The auto defogging apparatus using the Peltier element according to an embodiment of the present invention includes an input unit 110 for collecting temperature and humidity information inside and outside the vehicle, and a memory 120 storing a program for providing an auto defog function using the temperature and humidity information. ) and a processor 130 for executing the program, and the processor 130 controls to supply power to the Peltier device disposed on the vehicle window according to the temperature and humidity information analysis result.

The processor 130 supplies power to the Peltier element disposed on the vehicle window of the double junction structure, and controls the heating surface and the cooling surface of the Peltier element according to the power supply stage to be set.

The processor 130 provides a signal for controlling the current direction and the current strength when it is determined that the fogging or frost generation condition is in accordance with the analysis result of the temperature and humidity information.

When the internal temperature of the vehicle is higher than the external temperature according to the analysis result, the processor 130 supplies power so that the heating surface of the Peltier element is the same as the external glass surface, and the cooling surface of the Peltier element is the same as the internal glass surface, and the analysis result is Accordingly, when the vehicle external temperature is higher than the internal temperature, power is supplied so that the cooling surface of the Peltier element is identical to the external glass surface, and the heating surface of the Peltier element is identical to the internal glass surface.

The processor 130 provides a signal for controlling the current strength using a variable resistor.

Heat and cooling by the Peltier element is transmitted through a transparent heat-conducting material film disposed in the window.

2a to 2d show an auto defog system using a Peltier device according to an embodiment of the present invention.

The intensity of cooling/heating is adjusted by the control unit 230, and the direction of cooling/heating is adjusted.

In this case, the controller 230 controls the current strength using a variable resistor and controls the direction of the current through a switch.

Referring to FIG. 2A , there is hot air outside the vehicle and cold air inside the vehicle, and the temperature inside the vehicle is lower than the temperature outside the vehicle.

The heating surface of the Peltier element 210 by the controller 230 becomes the same as the inner glass surface, and the cooling surface of the Peltier element 210 becomes the same as the outer glass surface.

Referring to FIG. 2B , there is hot air inside the vehicle and cold air outside the vehicle, and the temperature inside the vehicle is higher than the temperature outside the vehicle.

The cooling surface of the Peltier element 210 by the controller 230 becomes the same as the inner glass surface, and the heating surface of the Peltier element 210 becomes the same as the outer glass surface.

The control unit 230 monitors the internal/external temperature and humidity of the vehicle, and supplies power to the Peltier device 210 mounted on the edge of the vehicle window when fogging or frost occurs, to cool one end and heat the other end.

The control unit 230 differently controls the intensity of the preset current through variable resistance according to the degree of the difference between internal/external temperature and humidity.

That is, as the difference between internal/external temperature/humidity increases, the strength of the current is increased to increase the strength of cooling and heat generation, and when the difference is small, the strength of the current is relatively small to control the strength of cooling and heat dissipation.

According to an embodiment of the present invention, a transparent heat-conducting material film (220, indium film, graphene, etc.) is disposed so that heat is transmitted as a whole in the window, and shrinkage, expansion and cracking according to the temperature change of the glass through the double junction structure to prevent

Referring to Figure 2d, the control unit 230 is a configuration for supplying power to the Peltier element 210 disposed on the glass having each double junction structure, a configuration for controlling by varying the current strength, a configuration for changing the direction of the current includes

3 shows an auto defog method using a Peltier device according to an embodiment of the present invention.

In step S310, a sensing value is obtained from a sensor disposed inside and outside the vehicle, and the temperature and humidity inside and outside are monitored.

Step S320 calculates the difference in temperature and humidity inside and outside the vehicle, and determines whether fogging or frost occurrence conditions exist.

In step S330, it is checked whether the internal temperature of the vehicle is greater than the external temperature, and current supply control is performed.

At this time, when the internal temperature is greater than the external temperature, the switch for supplying current in the first direction is turned on, and when the internal temperature is smaller than the external temperature, the switch for supplying the current in the second direction opposite to the first direction is turned on. By turning it on, the heating surface or cooling surface of the Peltier element is controlled to be the inner glass surface or the outer glass surface of the vehicle.

Step S340 is a step of performing matrix comparison using a temperature difference and a humidity difference, for example, comparing a value obtained by multiplying a temperature difference and a humidity difference with a preset matrix, and step S350 is a step S350 adjusting a variable resistor according to the comparison result to adjust the supply current adjust the strength of That is, when the temperature-humidity difference is greater than the preset value, the intensity of the supply current is adjusted so that the intensity of the current is greater than when the temperature-humidity difference is less than the preset value.

Step S360 supplies power to the Peltier element in a predetermined direction.

In step S370, it is determined whether the release condition is satisfied, and the power supply is released.

On the other hand, the auto defogging method using the Peltier device according to an embodiment of the present invention may be implemented in a computer system or recorded in a recording medium. The computer system may include at least one processor, a memory, a user input device, a data communication bus, a user output device, and storage. Each of the above-described components performs data communication through a data communication bus.

The computer system may further include a network interface coupled to the network. The processor may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in a memory and/or storage.

The memory and storage may include various types of volatile or non-volatile storage media. For example, memory may include ROM and RAM.

Accordingly, the auto defogging method using the Peltier device according to an embodiment of the present invention may be implemented as a computer-executable method. When the auto defogging method using the Peltier device according to an embodiment of the present invention is performed in a computer device, computer readable instructions may perform the auto defogging method using the Peltier device according to the present invention.

On the other hand, the auto defogging method using the Peltier device according to the present invention described above may be implemented as a computer readable code on a computer readable recording medium. The computer-readable recording medium includes any type of recording medium in which data that can be read by a computer system is stored. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, and the like. In addition, the computer-readable recording medium may be distributed in computer systems connected through a computer communication network, and stored and executed as readable codes in a distributed manner.

Claims (12)

an input unit for collecting temperature and humidity information inside and outside the vehicle;
a memory storing a program for providing an auto defog function using the temperature and humidity information; and
a processor for executing the program;
The processor controls to supply power according to the temperature and humidity information analysis result to the Peltier element disposed on the vehicle window
Auto defog device using In Peltier element.
According to claim 1,
The processor supplies power to the Peltier element disposed on the vehicle window of the double junction structure, and controls the heating surface and the cooling surface of the Peltier element according to the power supply stage to be set
Auto defog device using In Peltier element.
According to claim 1,
When the processor determines that it is a fogging or frost generation condition according to the analysis result of the temperature and humidity information, providing a signal for controlling the current direction and current strength
Auto defog device using In Peltier element.
4. The method of claim 3,
When the internal temperature of the vehicle is higher than the external temperature according to the analysis result, the processor supplies the power so that the heating surface of the Peltier element is the same as the external glass surface, the cooling surface of the Peltier element is the same as the internal glass surface, and the When the vehicle external temperature is higher than the internal temperature according to the analysis result, the cooling surface of the Peltier element is the same as the external glass surface, and the power is supplied so that the heating surface of the Peltier element is the same as the internal glass surface
Auto defog device using In Peltier element.
4. The method of claim 3,
The processor provides a signal for controlling the current strength using a variable resistor
Auto defog device using In Peltier element.
4. The method of claim 3,
Heating and cooling by the Peltier element is transmitted through a transparent heat-conducting material film disposed in the window
Auto defog device using In Peltier element.
(a) collecting temperature and humidity information inside and outside the vehicle;
(b) setting a control signal for auto defog by analyzing the temperature and humidity information; and
(c) supplying power to the Peltier device according to the control signal, and controlling the intensity of the current to perform the auto defog
Auto defog method using a Peltier device comprising a.
8. The method of claim 7,
The step (b) is to set the power supply stage applied to the Peltier element disposed on the vehicle window of the double junction structure
Auto defog method using an In Peltier device.
9. The method of claim 8,
In step (b), according to the analysis result for the temperature and humidity information, when the vehicle internal temperature is higher than the external temperature, the cooling surface of the Peltier element is the same as the inner glass surface so that the heating surface of the Peltier element is the same as the outer glass surface. To set the power stage so that, when the vehicle external temperature is higher than the internal temperature, so that the cooling surface of the Peltier element is the same as the external glass surface, setting the power stage so that the heating surface of the Peltier element is the same as the internal glass surface
Auto defog device using In Peltier element.
8. The method of claim 7,
The step (b) is to generate a signal for controlling the strength of the current when the fogging or frost generation condition is confirmed according to the analysis result of the temperature and humidity information
Auto defog method using an In Peltier device.
11. The method of claim 10,
The step (b) compares the difference in temperature and humidity inside and outside the vehicle with a preset matrix, and adjusts the variable resistor so that a preset current is applied.
Auto defog method using an In Peltier device.
8. The method of claim 7,
The step (c) is to transfer the heat and cooling by the Peltier element through a transparent heat-conducting material film disposed in the vehicle window to perform the auto defog
Auto defog method using an In Peltier device.

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