Car window automatic demisting equipment based on thermoelectric conversion technology

Abstract

The invention discloses automatic car window demisting equipment based on a thermoelectric conversion technology. The automatic car window demisting equipment specifically comprises a thermoelectric conversion module, a heat collection module, a humidity detection module, a control processing module and an air supply drying module. According to the automatic demisting equipment, the thermoelectric converter is adopted, heat energy emitted by an automobile is effectively utilized and converted into clean and pollution-free electric energy, extra energy consumption is not needed during operation of the whole equipment, and energy conservation and environmental protection are achieved; secondly, the demisting function is achieved through heat of the automobile, energy consumption is reduced, and energy recycling is achieved; the single-chip microcomputer is adopted as a main control chip of the control processing module, automatic control of the equipment is achieved, hot air demisting is adopted, the structure is simple, no space is occupied, the demisting effect is obvious in a drying mode, and the problem of water mist residue is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive safety, and particularly to an automatic defogging device for automobile windows. Technical Background

[0002] When an automobile is running in external environments with relatively low temperatures such as rain, snow, hail, and frost, due to the temperature inside the vehicle being higher than that of the external environment, a temperature difference is formed on the inner and outer surfaces of the windshield and rearview mirror of the automobile. The water vapor inside the vehicle condenses into water mist on the surface of the window, blocking the driver's vision ahead, reducing visibility, affecting normal driving, and extremely likely to cause traffic safety accidents.

[0003] Currently, the commonly used window cleaning devices mainly include mechanical devices, air-conditioning electric heating devices, and methods using composite materials, etc. Mechanical devices usually use motors to drive and link mechanisms for transmission, and the wiper performs the action of clearing water mist. Such devices occupy a large space, are not convenient for installation, and there are dead corners for cleaning; air-conditioning electric heating devices use the air-conditioning heating carried by the automobile itself, which requires excessive additional energy consumption; the method using composite materials usually adds a composite material film capable of heating on the window glass. Although this method has obvious effects, it has a high cost and consumes a large amount of electric energy. In addition, the automation degree of the above several methods is not high, often requiring manual operation and unable to effectively save resources. Summary of the Invention

[0004] In view of the deficiencies of the existing product technology, the present invention proposes a device that uses thermoelectric conversion technology to collect the heat dissipated by the automobile itself, convert it into electrical energy required for automobile defogging, and uses the heat dissipated by the automobile for automatic drying and defogging.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: An automatic window defogging device based on thermoelectric conversion technology, specifically including: a thermoelectric conversion module, a heat collection module, a humidity detection module, a control processing module, and a blowing and drying module;

[0006] The thermoelectric conversion module uses a thermoelectric converter as an energy conversion device;

[0007] The heat collection module uses a heat exchanger to collect the heat of the automobile;

[0008] The humidity detection module is characterized in that it uses a humidity sensor to detect the humidity of the window. The humidity sensor is connected to a signal amplification and processing circuit, and the window humidity signal is processed and then transmitted to the control processing module;

[0009] The control processing module uses a single-chip microcomputer as the main control chip, which is used to receive the humidity signal of the window and determine whether to start the blowing and drying module to work according to the magnitude of the humidity value;

[0010] The described air supply and drying module uses a blower as the air supply device. The blower is installed on one side of the evaporator of the heat collection module. On the other side of the evaporator, there is a heat transfer pipeline, in which an electromagnetic reversing valve is installed. The electromagnetic reversing valve is controlled by the control processing module. The electromagnetic reversing valve has two delivery interfaces, one of which is directly connected to the external environment, and the other is connected to the air outlet installed around the vehicle window through a transmission pipeline.

[0011] Furthermore, the thermoelectric conversion device is realized by using thermoelectric conversion technology. The thermoelectric direct conversion element can directly convert heat energy into electrical energy without any intermediate machinery.

[0012] Even further, the thermoelectric conversion device is specifically an alkali metal thermoelectric converter. The alkali metal thermoelectric converter is a heat engine that directly converts the heat energy generated by solar energy, external combustion, radioactive isotopes, reactor heat sources, and waste heat into electrical energy.

[0013] Even further, the thermoelectric converter is installed at the engine and exhaust pipe of the vehicle to collect the heat dissipated during the operation of the vehicle. The converted electrical energy is stored in the storage battery.

[0014] Furthermore, the heat exchanger adopts a shell-and-tube heat exchanger and is installed at parts with large heat dissipation such as the exhaust pipe and engine of the vehicle. The heat exchanger is connected to the evaporator and the heat transfer agent circulation pump through a heat transfer pipeline. The evaporator is used to dissipate heat. The evaporator is connected to the heat transfer agent circulation pump through a pipeline. The heat transfer agent circulation pump is used to drive the heat transfer agent to flow in the circulation channel.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The thermoelectric converter effectively utilizes the heat energy dissipated by the vehicle and converts it into clean and pollution-free electrical energy. The operation of the entire device does not require additional energy consumption, which is energy-saving and environmentally friendly.

[0017] 2. The defogging function is realized by using the heat of the vehicle itself, reducing energy consumption and achieving the recycling of energy.

[0018] 3. Using a single-chip microcomputer as the main control chip of the control processing module realizes the automatic control of the device.

[0019] 4. Using hot air defogging, the structure is simple, does not occupy space, and the defogging effect is obvious in the drying method, avoiding the problem of water mist residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall scheme design drawing of the present invention DETAILED DESCRIPTION OF THE INVENTION

[0021] As Figure 1 shown, the present invention is an automatic window defogging device based on thermoelectric conversion technology. The characteristics of an automatic window defogging device based on thermoelectric conversion technology are that the whole device consists of a thermoelectric conversion module, a heat collection module, a humidity detection module, a control processing module, and a air supply and drying module.

[0022] As an embodiment, the thermoelectric conversion module uses a thermoelectric converter as an energy conversion device. The thermoelectric conversion device is realized by using thermoelectric conversion technology. The thermoelectric direct conversion element can directly convert heat energy into electrical energy without any intermediate machinery. The present invention uses an alkali metal thermoelectric converter. The alkali metal thermoelectric converter is a heat engine that directly converts the heat energy generated by solar energy, external combustion, radioactive isotopes, reactor heat sources, and waste heat into electrical energy. The thermoelectric converter is installed at the engine and exhaust pipe of the vehicle to collect the heat dissipated during the operation of the vehicle. The converted electrical energy is stored in the storage battery.

[0023] The heat collection module is characterized by using a heat exchanger to collect the heat of the vehicle. The heat exchanger uses a shell-and-tube heat exchanger and is installed in parts with large heat dissipation such as the exhaust pipe and engine of the vehicle. The heat exchanger is connected to the evaporator and the heat transfer agent circulation pump through heat transfer pipes. The evaporator is used to dissipate heat, and the evaporator is connected to the heat transfer agent circulation pump through a pipe. The heat transfer agent circulation pump is used to drive the heat transfer agent to flow in the circulation channel.

[0024] The humidity detection module is characterized by using a humidity sensor to detect the humidity of the window. The humidity sensor is connected to a signal amplification and processing circuit, and the window humidity signal is processed and transmitted to the control processing module.

[0025] The control processing module uses a single-chip microcomputer as the main control chip, which is used to receive the humidity signal of the window and determine whether to start the air supply and drying module to work according to the magnitude of the humidity value.

[0026] The air supply and drying module is characterized by using a blower as the air supply device. The blower is installed on one side of the evaporator of the heat collection module. A heat transfer pipeline is arranged on the other side of the evaporator. An electromagnetic reversing valve is installed in the pipeline, and the electromagnetic reversing valve is controlled by the control processing module. The electromagnetic reversing valve has two delivery interfaces, one of which is directly connected to the external environment, and the other is connected to the air outlet installed around the window through a transmission pipeline.

[0027] A specific implementation process of the present invention is as follows: After the vehicle starts and runs, the entire device enters the working state. The thermoelectric conversion module converts the heat of the vehicle into electrical energy and stores it in the storage battery, providing electrical energy for the continuous operation of other modules. When the humidity of the window exceeds the set threshold, the humidity sensor transmits a signal to the control processing module. The control processing module controls the electromagnetic reversing valve in the air supply and drying module to act, transmitting the heat dissipated by the evaporator in the heat collection module to the air supply outlet around the window to dry the water mist on the window; when the humidity of the window is lower than the set threshold, after the control processing module detects the corresponding signal, it controls the action of the electromagnetic reversing valve and conveys the collected heat to the external environment through another interface.

[0028] Those of ordinary skill in the art will realize that the embodiments here are to help readers understand the principles of the present invention, and it should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific deformations and combinations that do not deviate from the essence of the present invention based on these technical revelations disclosed in the present invention, and these deformations and combinations are still within the protection scope of the present invention.

Claims

1. A vehicle window automatic defog device based on thermoelectric conversion technology, specifically comprising: Thermoelectric conversion module, heat collection module, humidity detection module, control processing module, air supply and drying module; The thermoelectric conversion module uses a thermoelectric converter as an energy conversion device; The heat collection module uses a heat exchanger to collect heat from the car; The humidity detection module is characterized in that a humidity sensor is used to detect the humidity of the vehicle window, the humidity sensor is connected to a signal amplification processing circuit, and the vehicle window humidity signal is processed and transmitted to the control processing module; The control processing module uses a single-chip microcomputer as the main control chip, which is used to receive the humidity signal of the car window and decide whether to start the air supply and drying module according to the humidity value; The air supply and drying module uses a blower as an air supply device. The blower is installed on one side of the evaporator of the heat collection module. A heat transmission pipeline is arranged on the other side of the evaporator. An electromagnetic reversing valve is installed in the pipeline. The electromagnetic reversing valve is controlled by the control processing module. The electromagnetic reversing valve has two transmission interfaces, one of which is directly connected to the external environment, and the other interface is connected to the exhaust outlet installed around the car window through a transmission pipeline.

2. The automatic window defogger device based on thermoelectric conversion technology according to claim 1 is characterized in that: The thermoelectric conversion device is realized by using thermoelectric conversion technology. The thermoelectric direct conversion element can directly convert thermal energy into electrical energy without any intermediate machinery.

3. The automatic window defogger device based on thermoelectric conversion technology according to claim 2 is characterized in that: The thermoelectric conversion device is specifically an alkali metal thermoelectric converter, which is a heat engine that directly converts thermal energy generated by solar energy, external combustion, radioactive isotopes, reactor heat source and waste heat into electrical energy.

4. The automatic window defogger device based on thermoelectric conversion technology according to claim 3 is characterized in that: The thermoelectric converter is installed at the engine and exhaust pipe of the car to collect the heat emitted during the operation of the car. The converted electric energy is stored in the battery.

5. The automatic window defogger device based on thermoelectric conversion technology according to claim 1 is characterized in that: The heat exchanger adopts a partition-type heat exchanger, which is installed in the exhaust pipe and engine of the car and other parts with large heat dissipation. The heat exchanger is connected to the evaporator and the heat exchange agent circulation pump through a heat transfer pipe. The evaporator is used to dissipate heat. The evaporator is connected to the heat exchange agent circulation pump through a pipe. The heat exchange agent circulation pump is used to promote the flow of the heat exchange agent in the circulation channel.

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