CN106892123A - A kind of electrothermal frontal windshield heating system - Google Patents
A kind of electrothermal frontal windshield heating system Download PDFInfo
- Publication number
- CN106892123A CN106892123A CN201510967529.5A CN201510967529A CN106892123A CN 106892123 A CN106892123 A CN 106892123A CN 201510967529 A CN201510967529 A CN 201510967529A CN 106892123 A CN106892123 A CN 106892123A
- Authority
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- China
- Prior art keywords
- temperature
- heating
- heating system
- electrothermal
- windscreen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 76
- 238000009998 heat setting Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 12
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention belongs to the antifog anti-icing technical field of windscreen, it is related to a kind of electrothermal frontal windshield heating system.Described heating system includes controller and heating windscreen, temperature sensor is provided with heating windscreen, the temperature signal that controller is gathered according to temperature sensor, judge whether the signal meets setting threshold values, first preheated if setting threshold values is met, until after reaching pre-add heat setting temperature, then carry out normal heating.The present invention can effectively prevent frontal windshield outer surface from freezing and rapidly remove the water smoke of inner surface on the basis of rationally control glass heating speed, ensure pilot driver safety.
Description
Technical field
The invention belongs to the antifog anti-icing technical field of windscreen, it is related to a kind of electrothermal frontal windshield to add
Warm system.
Background technology
The icing fogging of frontal windshield directly affects flight safety.Traditional electrothermal frontal windshield
Heating system generally uses electric current " on-off " formula computer heating control mode, and heating initial stage system is just
Worked in total power high current form, therefore windshield is subject to high-power forcing in a short time
Heat effect, temperature rises sharply, and glass produces great thermal stress, can not only reduce the glass life-span,
Can also cause glass to bubble or burst when the temperature of the surroundings is low, threaten pilot's personal safety.
The content of the invention
Present invention solves the technical problem that：A kind of electrothermal frontal windshield heating system, energy are provided
It is enough effectively to prevent frontal windshield outer surface from freezing on the basis of rationally control glass heating speed
And the water smoke of inner surface is rapidly removed, ensure pilot driver safety.
The technical scheme is that：A kind of electrothermal frontal windshield heating system, it is characterized by：
Described heating system includes controller and heating windscreen, and TEMP is provided with heating windscreen
Device, the temperature signal that controller is gathered according to temperature sensor judges whether the signal meets and sets
Determine threshold values, first preheated if setting threshold values is met, until reaching pre-add heat setting temperature
Afterwards, then normal heating is carried out.
Improved as one kind of the technical program, in preheating process, heat pulse duty cycle
Gradually increase.Avoid thermal shock of the heating with full power to glass in the short time.
Improved as one kind of the technical program, if after preheating carries out certain hour, not reaching yet
To pre-add heat setting temperature, then heated with 100% heating pulse duty cycle, until reaching
To pre-add heat setting temperature.Avoid long-time low-power from heating and cause that glass heats up slowly, it is impossible to
Heating desired value is reached, causes windscreen to haze or freeze.
Improved as one kind of the technical program, heating system is divided into " strong ", " weak " two works
Make mode, the heating desired value of two kinds of working methods corresponds to anti-icing, antifog operating temperature respectively.
Anti-icing operating temperature is heated to using high-power only under the conditions of icing meteorology, for non-icing bar
Part, weak heating working method uses relatively low heating power and operating temperature.There is provided two kinds of work(
Mode, while reducing energy consumption.
Improved as one kind of the technical program, judging whether that meeting setting threshold values carries out pre-add
Heat, and when judging whether to reach pre-add heat setting temperature and final heating desired value, to sense
What temperature value was minimum in device signal is all the way basis for estimation.Glass heating inhomogeneities is avoided to lead
The windscreen underheat of cause, it is impossible to reach heating desired value.
Improved as one kind of the technical program, overtemperature protection loop be provided with heating system,
The alarm decision in the loop according to in temperature sensor signal temperature value it is maximum all the way.Can be with
Glass local overheating caused by glass heating inhomogeneities is prevented effectively from, causes glass to bubble or fried
Split.
Beneficial effects of the present invention are：The present invention can heat the base of speed in rationally control glass
Effectively prevent frontal windshield outer surface from freezing and rapidly removing the water smoke of inner surface on plinth, ensure and fly
Office staff's driving safety.
Brief description of the drawings
Fig. 1 is principle schematic of the invention.
In figure：1 is system control panel, and 2 is electrical heating elements, and 3 is temperature sensor I,
4 is temperature sensor II, and 5 is temperature sensor III, and 6 is controller, and 7 is windscreen, and 8 are
Windscreen heating switch.
Specific embodiment
The technical program is described in further detail below in conjunction with the accompanying drawings.
The present invention is described in further detail below, referring to Fig. 1, a kind of electrothermal aircraft wind
Gear heating system.It by system control panel 1, electrical heating elements 2, temperature sensor I 3,
Temperature sensor II 4, temperature sensor III 5, controller 6, windscreen 7 are constituted, system control
Windscreen heating switch 8 is provided with panel 1.
When windscreen heating switch 8 is in "Off" position, controller 6 is not added to windscreen 7
Temperature and control.
Windscreen heating switch 8 is placed in " weak " shelves, the adhesive of controller 6 exchange relay by "Off"
Device, system is in weak heating working condition.Controller judges temperature sensor I 3, temperature respectively
Degree sensor II 4, the temperature signal of temperature sensor III 5, from the temperature that temperature is minimum
Degree sensor is less than as control road temperature sensor when controller 6 detects the temperature of windscreen 7
Pre-heating desired value, controller 6 gradually increases heating pulse duty cycle, windscreen 7 is carried out pre-
Heat, stops when the temperature of windscreen 7 reaches pre-heating desired value.After the preheated one-section time, such as
The temperature of fruit windscreen 7 is still not up to pre-heating desired value, then controller 6 is with 100% heating arteries and veins
Dutycycle wide is heated to windscreen 7, until the temperature of windscreen 7 reaches pre-heating desired value, that
Stop preheating, temperature signal and weak heating target of the controller according to control road temperature sensor
Gap and rate of temperature change between value, amendment heating pulse duty cycle, reach windscreen 7 anti-
Mist temperature requirement.
Windscreen heating switch is placed in " strong " shelves by "Off", the adhesive AC relay of controller 6,
System is in forces temperature state.Controller judges temperature sensor I 3, temperature sensor respectively
II 4, the temperature signal of temperature sensor III 5, from the temperature sensor that temperature is minimum
As control road temperature sensor, when controller 6 detects the temperature of windscreen 7 less than pre-heating mesh
Scale value, controller 6 gradually increases heating pulse duty cycle, and windscreen 7 is preheated, until
The temperature of windscreen 7 stops when reaching pre-heating desired value.After the preheated one-section time, if windscreen 7
Temperature is still not up to pre-heating desired value, then controller 6 is with 100% heating pulse duty cycle
Windscreen 7 is heated, until the temperature of windscreen 7 reaches pre-heating desired value, then stop pre-
Heat, controller is according between the temperature signal and weak heating desired value of control road temperature sensor
Gap and rate of temperature change, amendment heating pulse duty cycle, windscreen 7 is reached anti-ice temperature will
Ask.
Windscreen heating switch is placed in " strong " shelves by " weak ", and system enters forces warm working condition,
Controller 6 is according to the temperature signal of control road temperature sensor and forces between warm desired value
Gap and rate of temperature change, amendment heating pulse duty cycle, windscreen 7 is reached anti-ice temperature will
Ask.
In whole heating process, the real-time detection temperature sensor I 3, TEMP of controller 6
Device II 4 and the state of temperature sensor III 5, from the temperature sensor conduct all the way of temperature highest
Alarm road temperature sensor, from the control road temperature sensor of conduct all the way that temperature is minimum, remains
Remaining temperature sensor all the way is used as backup road sensor.If control road sensor or alarm road pass
Sensor is broken down, and the temperature sensor of failure is switched into backup road sensor automatically.If
Control road sensor and the alarm equal failure of road sensor, then do not carry out heating control, sends system
Fault message is to unit warning system.In addition, have independent overtemperature protection loop in controller 6,
When detecting temperature sensor I 3, temperature sensor II 4 and temperature is most in temperature sensor III 5
Its temperature all the way high reaches windscreen safe temperature and heating loop is when having electric current, and system will send
Overtemperature alarm signal is to unit warning system.
Claims (6)
1. a kind of electrothermal frontal windshield heating system, it is characterized by：Described heating system
Including controller and heating windscreen, temperature sensor is provided with heating windscreen, controller according to
The temperature signal of temperature sensor collection, judges whether the signal meets setting threshold values, if meeting
Setting threshold values is then first preheated, until after reaching pre-add heat setting temperature, then carry out normal
Heating.
2. a kind of electrothermal frontal windshield heating system according to claim 1, it is special
Levy for：In preheating process, heating duty ratio gradually increases.
3. a kind of electrothermal frontal windshield heating system according to claim 1, it is special
Levy for：If preheating carry out certain hour after, still not up to preheating design temperature, then with
100% heating duty ratio is heated, until reaching pre-add heat setting temperature.
4. a kind of electrothermal frontal windshield heating system according to claim 1, it is special
Levy for：Heating system is divided into " strong ", " weak " two working methods, two kinds of working methods plus
Warm desired value corresponds to anti-icing, antifog operating temperature respectively.
5. a kind of electrothermal frontal windshield heating system according to claim 1, it is special
Levy for：Judging whether that meeting setting threshold values is preheated, and judges whether to reach pre-add
It is minimum all the way with temperature value in sensor signal when heat setting temperature and final heating desired value
It is basis for estimation.
6. a kind of electrothermal frontal windshield heating system according to claim 1, it is special
Levy for：Overtemperature protection loop is provided with heating system, the alarm decision foundation in the loop is temperature
Temperature value is maximum all the way in degree sensor signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967529.5A CN106892123A (en) | 2015-12-21 | 2015-12-21 | A kind of electrothermal frontal windshield heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967529.5A CN106892123A (en) | 2015-12-21 | 2015-12-21 | A kind of electrothermal frontal windshield heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106892123A true CN106892123A (en) | 2017-06-27 |
Family
ID=59191145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967529.5A Pending CN106892123A (en) | 2015-12-21 | 2015-12-21 | A kind of electrothermal frontal windshield heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106892123A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499281A (en) * | 2017-07-13 | 2017-12-22 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft electric heating windshield heat control method |
| CN111655990A (en) * | 2017-11-14 | 2020-09-11 | 联合发动机制造集团股份公司 | Method for controlling an anti-icing system for an aircraft gas turbine engine air intake |
| CN111816131A (en) * | 2020-06-05 | 2020-10-23 | 嘉兴行适安车联网信息科技有限公司 | Method for solving slow refreshing of display screen during low-temperature starting |
| CN112124600A (en) * | 2020-09-30 | 2020-12-25 | 中航(成都)无人机系统股份有限公司 | Anti-icing and deicing coating of composite wing |
| CN112193421A (en) * | 2020-09-30 | 2021-01-08 | 中航(成都)无人机系统股份有限公司 | Electric heating coating for preventing and removing ice on wing |
| CN114194414A (en) * | 2021-12-27 | 2022-03-18 | 武汉航空仪表有限责任公司 | Heating test system for airplane windshield and data acquisition and processing method |
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| US20020096515A1 (en) * | 1998-06-15 | 2002-07-25 | Petrenko Victor F. | Prevention of ice formation by applying electric power to a liquid water layer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499281A (en) * | 2017-07-13 | 2017-12-22 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft electric heating windshield heat control method |
| CN111655990A (en) * | 2017-11-14 | 2020-09-11 | 联合发动机制造集团股份公司 | Method for controlling an anti-icing system for an aircraft gas turbine engine air intake |
| CN111816131A (en) * | 2020-06-05 | 2020-10-23 | 嘉兴行适安车联网信息科技有限公司 | Method for solving slow refreshing of display screen during low-temperature starting |
| CN112124600A (en) * | 2020-09-30 | 2020-12-25 | 中航(成都)无人机系统股份有限公司 | Anti-icing and deicing coating of composite wing |
| CN112193421A (en) * | 2020-09-30 | 2021-01-08 | 中航(成都)无人机系统股份有限公司 | Electric heating coating for preventing and removing ice on wing |
| CN114194414A (en) * | 2021-12-27 | 2022-03-18 | 武汉航空仪表有限责任公司 | Heating test system for airplane windshield and data acquisition and processing method |
| CN114194414B (en) * | 2021-12-27 | 2023-10-20 | 武汉航空仪表有限责任公司 | Airplane windshield heating test system and data acquisition and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |