CN111619318A - Thermoelectric dehumidification and demisting system and working method thereof in automobile - Google Patents
Thermoelectric dehumidification and demisting system and working method thereof in automobile Download PDFInfo
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- CN111619318A CN111619318A CN202010606742.4A CN202010606742A CN111619318A CN 111619318 A CN111619318 A CN 111619318A CN 202010606742 A CN202010606742 A CN 202010606742A CN 111619318 A CN111619318 A CN 111619318A
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- heat exchanger
- dehumidification
- thermoelectric
- humidity
- fan
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/024—Moistening ; Devices influencing humidity levels, i.e. humidity control for only dehumidifying the air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a thermoelectric dehumidification demisting system and a working method thereof in an automobile, comprising a thermoelectric device; the first heat exchanger and the second heat exchanger are connected with two ends of the thermoelectric device; the fan is positioned on one side of the first heat exchanger, which is far away from the second heat exchanger; a temperature and humidity sensor for detecting temperature and humidity; and the controller is respectively connected with and controls the temperature and humidity sensor, the fan and the thermoelectric device. The invention achieves the purposes of dehumidification and demisting by adopting the thermoelectric device, and has simple control. By adopting the humidity sensor to sense the humidity, the dehumidifying device can start working in advance before the humidity reaches a set value, and actively control the humidity. Whether the temperature sensor and the humidity sensor sense the fogging of the glass or not, the system can start to work before the fogging of the glass, and the fogging of the glass is prevented actively. The dehumidifying device manufactured by the method is flexible to assemble, can be assembled in an automobile air conditioning system to be used together, and can also be used as an independent dehumidifying device.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to a thermoelectric dehumidification and demisting system and a working method thereof in an automobile.
Background
In the use process of the automobile, the air in the automobile needs to be dehumidified. The purpose is to improve passenger's comfort level, also can avoid glass to haze to influence the sight, and front windshield fogging still can influence vehicle driving safety.
The currently used dehumidification methods are: adopt compressor refrigeration cycle system, through the evaporimeter in the air-conditioning box with air refrigeration dehumidification, thereby reduce humidity with the air reheating through the heater in the air-conditioning box, improve the travelling comfort. The evaporator is cooled by a compressor refrigeration cycle system, and the heater is heated by engine waste heat (fuel vehicle) or a PTC heater (positive temperature coefficient resistor, electric vehicle).
The existing demisting method for the front windshield of the automobile comprises the following steps: the defogging is realized by blowing the dehumidified air to the glass or by blowing the air heated by the heater to the glass. When the compression refrigeration system is adopted for demisting, the system is complex, and the demisting effect is insufficient by adopting the heater. And at present, the side window of the automobile is not provided with a defogging system, and the defogging of the rear windshield adopts an electric heating wire to heat the glass for defogging.
In the dehumidification process, the compressor needs to refrigerate, the PTC heater needs to heat, and both the compressor and the PTC heater need to consume electric power. In addition, in a high-humidity environment of 0-5 ℃, the evaporator is easy to frost, so that the operation of the compressor is very unstable, and the dehumidification and demisting effects and the comfort are poor.
Disclosure of Invention
The invention solves the technical problems that the existing automobile is relatively complicated in system when a compression refrigeration system is adopted for demisting in the demisting process, and the demisting effect is insufficient by adopting a heater; the side window of the automobile is not provided with a defogging system; in the dehumidification process, the compressor needs to refrigerate, the PTC heater needs to heat, and both the compressor and the PTC heater need to consume electric power.
In order to solve the above technical problem, a technical solution of the present invention provides a thermoelectric dehumidification and demisting system, including:
a thermoelectric device;
the first heat exchanger and the second heat exchanger are respectively connected with two ends of the thermoelectric device;
the fan is positioned on one side of the first heat exchanger, which is far away from the second heat exchanger;
a temperature and humidity sensor for detecting temperature and humidity; and
and the controller is respectively connected with and controls the temperature and humidity sensor, the fan and the thermoelectric device.
Optionally, the first heat exchanger is connected to the cold end of the thermoelectric device.
Optionally, the second heat exchanger is connected to the hot side of the thermoelectric device.
Optionally, the fan blows air to the first heat exchanger and the second heat exchanger.
Optionally, the fan blows air to the first heat exchanger for heat exchange, and then blows air to the second heat exchanger for heat exchange.
In order to solve the above technical problem, the technical solution of the present invention further provides a working method of the thermoelectric dehumidification and defogging system in an automobile, wherein the working method comprises:
temperature and humidity sensor detects the humiture in the ambient air, and thermoelectric device, fan work are controlled to the controller, the fan blows the air to first heat exchanger and refrigerates the dehumidification, the fan continues to blow the air after first heat exchanger is handled to the second heat exchanger and heats up and realize the dehumidification in getting into the ambient air, carries out the defogging when blowing to car glass simultaneously.
Optionally, the thermoelectric dehumidification and defogging system is installed at any position in the vehicle.
Optionally, the thermoelectric dehumidification and defogging system is installed in the vehicle at any position close to the glass of the vehicle.
Optionally, the thermoelectric dehumidification and demisting system is installed in an air conditioning cabinet of an automobile.
The technical scheme of the invention has the beneficial effects that:
1. the invention achieves the purposes of dehumidification and demisting by adopting the thermoelectric device, and has simple control.
2. According to the invention, the humidity sensor is adopted to sense the humidity, and the dehumidifying device can start working in advance before the humidity reaches a set value, so that the humidity is actively controlled.
3. According to the invention, whether the glass is fogged or not is sensed by adopting the temperature and humidity sensors, so that the system can start working before the glass is fogged, and the glass is actively prevented from being fogged.
4. The dehumidifying device manufactured by the method is flexible to assemble, can be assembled in an automobile air conditioning system for use together, and can also be used as an independent dehumidifying device for use.
5. The defogging device manufactured by the method is flexible to assemble, and the system can be independently configured for each glass and also can be assembled in an automobile air conditioner box to be matched with an air conditioning system to defogge the front windshield.
Drawings
FIG. 1 is a schematic diagram of a thermoelectric dehumidification and defogging system in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of an installation structure of the thermoelectric dehumidification and defogging system in a vehicle according to the embodiment of the invention.
The specific implementation mode is as follows:
the invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Referring to fig. 1, an exemplary embodiment of a thermoelectric dehumidification and defogging system is shown, which includes a thermoelectric device 1; the first heat exchanger 2 and the second heat exchanger 3 are respectively connected with two ends of the thermoelectric device 1, and both the two heat exchangers are connected with the thermoelectric device 1 through a heat pipe 7; the fan 4 is positioned on one side of the first heat exchanger 2, which is far away from the second heat exchanger 3; a temperature and humidity sensor 5 for detecting temperature and humidity; and a controller 6 connected to and controlling the temperature and humidity sensor 5, the fan 4, and the thermoelectric device 1, respectively.
In this embodiment, the first heat exchanger 2 is connected to the cold side of the thermoelectric device 1, and the second heat exchanger 3 is connected to the hot side of the thermoelectric device 1.
In this embodiment, the fan 4 blows air to the first heat exchanger 2 and the second heat exchanger 3, specifically, the fan 4 blows air to the first heat exchanger 2 for heat exchange, and then blows air to the second heat exchanger 3 for heat exchange.
The features and functions of the present invention will be further understood from the following description.
The technical scheme of the embodiment also provides a working method of the thermoelectric dehumidification and demisting system in the automobile, wherein the working method comprises the following steps:
referring to fig. 1 and 2, a temperature and humidity sensor 5 (in fig. 2, the functions of the temperature and humidity sensor may be dispersed and set as an individual temperature sensor 5 and an individual humidity sensor 8) detects the temperature and humidity of ambient air, a controller 6 controls a thermoelectric device 1 and a fan 4 to operate, the fan 4 blows air to a first heat exchanger 2 for refrigeration and dehumidification, the fan 4 continuously blows air processed by the first heat exchanger 2 to a second heat exchanger 3 for heating and temperature rise to enter the ambient air for dehumidification, and demisting is performed when the air is blown to a vehicle glass 9 (as indicated by arrows in fig. 1 and 2).
In this embodiment, the configuration of the thermoelectric dehumidification and defogging system device is flexible and changeable, and the thermoelectric dehumidification and defogging system device can be installed at any position in the vehicle, for example, the thermoelectric dehumidification and defogging system device is installed at any position in the vehicle, which is close to the glass of the vehicle, and of course, the thermoelectric dehumidification and defogging system device is also installed in the air conditioner box of the vehicle. The thermoelectric dehumidification and demisting system device of the embodiment is flexible to assemble as a dehumidification device, can be assembled in an automobile air conditioning system for use together, and can also be used as an independent dehumidification device. As a defogging device, the system can be flexibly assembled, can be independently configured for each glass, and can also be assembled in an automobile air-conditioning box to be matched with an air-conditioning system to defogge the front windshield.
The invention adopts a thermoelectric device to realize dehumidification and demisting. The system comprises a thermoelectric device 1, a heat pipe heat exchanger 2/3, a fan 4, a temperature sensor 5, a humidity sensor 8 and a controller 6. Two ends of the thermoelectric device 1 are respectively connected with the two heat pipe heat exchangers 2/3, and after the thermoelectric device is electrified, the first heat exchanger 2 refrigerates and the second heat exchanger 3 heats. The controller 6 determines whether dehumidification and defogging are needed through the data collected by the in-vehicle temperature sensor 5, the glass temperature sensor (not shown, but those skilled in the art can understand that the glass temperature sensor is a sensor (in this embodiment, a non-contact sensor) that is in contact with or not in contact with glass and can sense the temperature of the glass, which is not described herein for the prior art), and the in-vehicle humidity sensor 8.
When dehumidification is needed, the fan 4 and the thermoelectric device 1 start to be electrified to work, wet air in the vehicle passes through the first heat exchanger 2 to refrigerate and dehumidify the air, and condensed water flows into the water tank and then is discharged out of the vehicle; the air passing through the first heat exchanger 2 passes through the second heat exchanger 3, and is heated, so that the humidity is reduced, and the temperature is increased; and the dehumidified air is discharged into the vehicle, namely, dehumidification is realized.
When defogging is needed, the fan 4 and the thermoelectric device 1 start to be electrified to work, air outside the vehicle passes through the first heat exchanger 2 to refrigerate and dehumidify the air, and condensed water flows into the water tank and then is discharged outside the vehicle; the air passing through the first heat exchanger 2 passes through the second heat exchanger 3, and is heated, so that the humidity is reduced, and the temperature is increased; the dehumidified air is blown to the glass, so that the glass is demisted.
In conclusion, the invention achieves the purposes of dehumidification and demisting by adopting the thermoelectric device, and is simple to control. Thermoelectric device refrigeration differs from compression refrigeration in that there is no need for refrigerants nor complex mechanical structures and piping systems. The refrigerating and heating of the thermoelectric device can control the dehumidification performance only by controlling the input current of the thermoelectric device, and a compressor and a PTC heater do not need to be controlled. The method has the advantages of low energy consumption and good effect in dehumidification and demisting. The power of the thermoelectric device during dehumidification and demisting is only equivalent to that of the PTC heater during working, the compressor is not required to work, and the power consumption of the compressor is avoided.
The humidity sensor is adopted to sense the humidity, and the dehumidifying device can start working in advance before the humidity reaches a set value, so that the humidity is actively controlled. Adopt temperature and humidity transducer to carry out the perception to glass whether can the fog, the system can begin work before glass fogging, prevents glass fogging voluntarily.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A thermoelectric dehumidification and defogging system, comprising:
a thermoelectric device;
the first heat exchanger and the second heat exchanger are respectively connected with two ends of the thermoelectric device;
the fan is positioned on one side of the first heat exchanger, which is far away from the second heat exchanger;
a temperature and humidity sensor for detecting temperature and humidity; and
and the controller is respectively connected with and controls the temperature and humidity sensor, the fan and the thermoelectric device.
2. The thermoelectric dehumidification and defogging system of claim 1 wherein said first heat exchanger is connected to a cold side of said thermoelectric device.
3. The thermoelectric dehumidification and defogging system of claim 1 wherein said second heat exchanger is connected to a hot side of said thermoelectric device.
4. The thermoelectric dehumidification and defogging system of claim 1 wherein said fan blows air toward said first heat exchanger and said second heat exchanger.
5. The system according to claim 4, wherein the fan blows air to the first heat exchanger for heat exchange and then to the second heat exchanger for heat exchange.
6. A method of operating a thermoelectric dehumidification and defogging system in an automobile, comprising:
temperature and humidity sensor detects the humiture in the ambient air, and thermoelectric device, fan work are controlled to the controller, the fan blows the air to first heat exchanger and refrigerates the dehumidification, the fan continues to blow the air after first heat exchanger is handled to the second heat exchanger and heats up and realize the dehumidification in getting into the ambient air, carries out the defogging when blowing to car glass simultaneously.
7. The method of operating a thermoelectric dehumidification and defogging system and an automotive vehicle according to claim 6 wherein said thermoelectric dehumidification and defogging system is installed at any location within the vehicle.
8. The method as recited in claim 6, wherein said thermoelectric dehumidification and defogging system is installed in any location within the vehicle proximate to the glass.
9. The method of operating a thermoelectric dehumidification and defogging system for an automotive vehicle of claim 6 wherein said thermoelectric dehumidification and defogging system is installed in an air conditioning compartment of an automotive vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606742.4A CN111619318A (en) | 2020-06-30 | 2020-06-30 | Thermoelectric dehumidification and demisting system and working method thereof in automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010606742.4A CN111619318A (en) | 2020-06-30 | 2020-06-30 | Thermoelectric dehumidification and demisting system and working method thereof in automobile |
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| CN111619318A true CN111619318A (en) | 2020-09-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739561A (en) * | 2020-10-31 | 2021-04-30 | 华为技术有限公司 | Automobile air conditioning box, method for controlling automobile air conditioning box and air conditioning controller |
| CN112776839A (en) * | 2021-02-25 | 2021-05-11 | 郑州铁路职业技术学院 | Low-temperature demisting device of railway locomotive |
| CN112947212A (en) * | 2021-03-01 | 2021-06-11 | 合肥工业大学 | Transparent conductive film intelligence defogging system based on singlechip |
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| CA1261628A (en) * | 1984-12-24 | 1989-09-26 | Wayne E. Conrad | Thermoelectric air conditioner |
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| CN212267195U (en) * | 2020-06-30 | 2021-01-01 | 应雪汽车科技(常熟)有限公司 | Thermoelectric dehumidification defogging system |
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2020
- 2020-06-30 CN CN202010606742.4A patent/CN111619318A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CA1261628A (en) * | 1984-12-24 | 1989-09-26 | Wayne E. Conrad | Thermoelectric air conditioner |
| JP2003021378A (en) * | 2001-07-09 | 2003-01-24 | Munters Kk | Dehumidifying air conditioning system |
| CN101037080A (en) * | 2007-04-26 | 2007-09-19 | 上海交通大学 | Semiconductor antifogging device for vehicle |
| US20170003041A1 (en) * | 2015-07-01 | 2017-01-05 | Merit Co., Ltd. | Wall-mounted smart dehumidifier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739561A (en) * | 2020-10-31 | 2021-04-30 | 华为技术有限公司 | Automobile air conditioning box, method for controlling automobile air conditioning box and air conditioning controller |
| CN112776839A (en) * | 2021-02-25 | 2021-05-11 | 郑州铁路职业技术学院 | Low-temperature demisting device of railway locomotive |
| CN112947212A (en) * | 2021-03-01 | 2021-06-11 | 合肥工业大学 | Transparent conductive film intelligence defogging system based on singlechip |
| CN112947212B (en) * | 2021-03-01 | 2022-08-02 | 合肥工业大学 | Transparent conductive film intelligence defogging system based on singlechip |
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