CN102991304B - The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof - Google Patents
The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof Download PDFInfo
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- CN102991304B CN102991304B CN201210491074.0A CN201210491074A CN102991304B CN 102991304 B CN102991304 B CN 102991304B CN 201210491074 A CN201210491074 A CN 201210491074A CN 102991304 B CN102991304 B CN 102991304B
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- ptc
- ptc heater
- heater
- air
- power supply
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 12
- 230000001012 protector Effects 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 5
- 238000005276 aerator Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses the heater protective apparatus of a kind of air conditioning for automobiles; including air-conditioner controller, ptc heater, power supply, control ptc heater on/off PTC relay; being provided with thermal protector in the heat radiator fin of described ptc heater, described thermal protector is connected with air-conditioner controller；Adopt said structure; the invention have the advantages that 1, when ptc heater surface temperature is too high; PTC relay disconnects the power supply of ptc heater; ptc heater is played a protective role; avoid causing quality or security incident; when ptc heater surface temperature is down to suitable temperature, PTC relay recovery connects the power supply of ptc heater so that it is work on；2, protected effect is good。<!--1-->
Description
Technical field
The present invention relates to field of automobile air conditioner, particularly to heater protective apparatus and the control method thereof of a kind of air conditioning for automobiles。
Background technology
Development and application along with global range regenerative resource, since entering 21st century, Development of Electric Vehicles is quickly, using vehicle power on electric automobile is power, and the PTC electric heater that air conditioner of electric vehicle commonly uses is as thermal source, for Defroster device for vehicle and heating。Additionally adopt ptc heater as auxiliary heating on part of gasoline car, diesel car, the demand of the low defrosting of engine water temperature and heating during to solve that vehicle motor just starts in the winter time。
PTC is the abbreviation of PositiveTemperatureCoefficient, refers to the very big semi-conducting material of positive temperature coefficient or components and parts, and the PTC that generally we mention refers to semistor, is called for short PTC thermistor。PTC chip is used to be widely used in electric automobile air-conditioning system as the ptc heater that heating element heater is made and HVAC(Heating, the VentilatingandAirConditioning of vapour, diesel vehicle) in assembly system。
PTC electric heater in the HVAC of air conditioning for automobiles, it is when calm passing through, after PTC energising, the temperature of PTC core body can reach its Curie-point temperature, although now the resistance of heater raises with temperature and enlarges markedly, the electric current of PTC is substantially reduced, and PTC heating power reduces, but also has certain power consumption (actual power consumption is fixed with ptc material characteristic) at this moment aluminium flake temperature of PTC radiator also can reach higher temperature。Such as 170 degree of PTC Curie-point temperatures, when windless condition runs, PTC fin temperature is within the time of 1 minute, and the surface temperature (the aluminium flake temperature of radiator) of PTC can reach more than 130 degree。So time HVAC in PTC mounting portion structural design time working of plastics need the material of resistance to temperature characterisitic selected, reach the heatproof level of more than 130 DEG C, the peripheral clearance of ptc heater and HVAC will as key parameter control, avoid ptc heater will not make peripheral structural member temperature distortion when windless condition is energized, and cause PTC and contact structure, cause quality or security incident。To consider to disconnect in time under PTC windless condition PTC power supply during Design of Electrical Controling System, thus ensureing the safety of air conditioning system。
Summary of the invention
The technical problem to be solved is, for the deficiencies in the prior art, it is provided that a kind of ptc heater prevents heater protective apparatus and the control method thereof of the too high air conditioning for automobiles of ptc heater surface temperature under the calm or only small state of air quantity。
For solving above-mentioned technical problem; the technical scheme is that the heater protective apparatus of a kind of air conditioning for automobiles; including air-conditioner controller, ptc heater, power supply, control ptc heater on/off PTC relay; being provided with thermal protector in the heat radiator fin of described ptc heater, described thermal protector is connected with air-conditioner controller；
Described air-conditioner controller, for the ptc heater surface temperature gathered according to thermal protector, by the break-make of described PTC Control ptc heater power supply。
Described thermal protector adopts renewable type bimetal plate heat protector。
The coil of the contact of described thermal protector and PTC relay is in series。
The input of described air-conditioner controller is connected to sensor。
Described sensor includes exogenous QI temperature sensor, vehicle interior temperature sensor, engine water temperature sensor, evaporator temperature sensor, sunlight sensor。
Described air-conditioner controller is connected with keyboard input module, display module, servomotor, speed adjusting module, compressor control unit respectively。
Described speed adjusting module is connected with aerator。
Described compressor control unit is connected with compressor。
A kind of control method of the heater protective apparatus of air conditioning for automobiles, described method comprises the following steps:
A), when ptc heater surface temperature rises to setting value T1, PTC relay disconnects the power supply of ptc heater；
B) when ptc heater surface temperature is down to setting value T2, PTC relay recovery connects the power supply of ptc heater。
The present invention adopts said structure and method; have the advantage that 1, when ptc heater surface temperature is too high; PTC relay disconnects the power supply of ptc heater; ptc heater is played a protective role; avoid causing quality or security incident; when ptc heater surface temperature is down to suitable temperature, PTC relay recovery connects the power supply of ptc heater so that it is work on；2, protected effect is good。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation；
Fig. 1 is the logical structure block diagram of the present invention；
In FIG, 1, air-conditioner controller；2, sensor；3, keyboard input module；4, display module；5, servomotor；6, speed adjusting module；7, aerator；8, compressor control unit；9, compressor；10, thermal protector；11, ptc heater；12, PTC relay。
Detailed description of the invention
The heater protective apparatus of a kind of air conditioning for automobiles as shown in Figure 1; including air-conditioner controller 1, ptc heater 11, power supply, control ptc heater 11 on/off PTC relay 12; being provided with thermal protector 10 in the heat radiator fin of ptc heater 11, described thermal protector 10 is connected with air-conditioner controller 1；
Air-conditioner controller 1, for ptc heater 11 surface temperature gathered according to thermal protector 10, controls the break-make of ptc heater 11 power supply by described PTC relay 12。Thermal protector 10 adopts renewable type bimetal plate heat protector。The coil of the contact of thermal protector 10 and PTC relay 12 is in series。The input of air-conditioner controller 1 is connected to sensor 2。Sensor 2 includes exogenous QI temperature sensor, vehicle interior temperature sensor, engine water temperature sensor, evaporator temperature sensor, sunlight sensor。
Air-conditioner controller 1 is connected with keyboard input module 3, display module 4, servomotor 5, speed adjusting module 6, compressor control unit 8 respectively。Speed adjusting module 6 is connected with aerator 7。Compressor control unit 8 is connected with compressor 9。
Sensor signal 2 is exogenous QI temperature sensor, vehicle interior temperature sensor, engine water temperature sensor, evaporator temperature sensor, sunlight sensor。Keyboard input module 3 is AUTO button, inner-outer circulation button, mode key, temperature regulating key, wind speed regulating key, AC button, PTC button。Servomotor 5 circulates servomotor, pattern servomotor, changes in temperature servomotor for inside/outside。
A kind of control method of the heater protective apparatus of air conditioning for automobiles, method comprises the following steps:
A), when ptc heater surface temperature rises to setting value T1, PTC relay disconnects the power supply of ptc heater；
B) when ptc heater surface temperature is down to setting value T2, PTC relay recovery connects the power supply of ptc heater。
When air conditioning system ptc heater works, in order to prevent ptc heater surface calm or the air quantity too small PTC of causing surface temperature is too high and cause possible safety problem。This calm or air quantity is too small to be likely to be due to aerator and lost efficacy or fault causes or owing to blender door micro machine causes in the position of mistake。The heat radiator fin of ptc heater 11 inserts the bimetal plate heat protector 10 of renewable type; the surface temperature of perception ptc heater; when ptc heater 11 surface owing to the reason such as calm causes PTC surface temperature to disconnect power supply when rising to T1 (DEG C) in time, and it is down to T2(DEG C in temperature) time can recover to connect。T1 temperature spot can by the relation of the curie point of PTC, PTC surface temperature and time and when allowing operating ambient temperature, and PTC surface is determined by the hot face temperature of less air quantity (the minimum shelves air quantity of air conditioning system)。
Above in conjunction with accompanying drawing, the present invention is exemplarily described; the obvious present invention implements and is not subject to the restrictions described above; as long as have employed the various improvement that the design of the method for the present invention carries out with technical scheme; or not improved that directly apply to other occasion, all within protection scope of the present invention。
Claims (1)
1. the control method of the heater protective apparatus of an air conditioning for automobiles; the heater protective apparatus of described air conditioning for automobiles includes the PTC relay (12) of air-conditioner controller (1), ptc heater (11), power supply, control ptc heater (11) on/off; being provided with thermal protector (10) in the heat radiator fin of described ptc heater (11), described thermal protector (10) is connected with air-conditioner controller (1)；Described air-conditioner controller (1); for ptc heater (11) surface temperature gathered according to thermal protector (10); the break-make of ptc heater (11) power supply is controlled by described PTC relay (12); the input of described air-conditioner controller (1) is connected to sensor (2); described sensor (2) includes exogenous QI temperature sensor, vehicle interior temperature sensor, engine water temperature sensor, evaporator temperature sensor and sunlight sensor, and described thermal protector (10) adopts renewable type bimetal plate heat protector；The contact of described thermal protector (10) and the coil of PTC relay (12) are in series；Described air-conditioner controller (1) is connected with keyboard input module (3), display module (4), servomotor (5), speed adjusting module (6), compressor control unit (8) respectively；Described speed adjusting module (6) is connected with aerator (7)；Described compressor control unit (8) is connected with compressor (9),
It is characterized in that: described method comprises the following steps:
A), when ptc heater surface temperature rises to setting value T1, PTC relay disconnects the power supply of ptc heater；
B) when ptc heater surface temperature is down to setting value T2, PTC relay recovery connects the power supply of ptc heater。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491074.0A CN102991304B (en) | 2012-11-28 | 2012-11-28 | The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491074.0A CN102991304B (en) | 2012-11-28 | 2012-11-28 | The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102991304A CN102991304A (en) | 2013-03-27 |
| CN102991304B true CN102991304B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210491074.0A Expired - Fee Related CN102991304B (en) | 2012-11-28 | 2012-11-28 | The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568780A (en) * | 2013-10-31 | 2014-02-12 | 博耐尔汽车电气系统有限公司 | PTC (positive temperature coefficient) auxiliary heating control system of automobile air conditioner |
| US10471805B2 (en) * | 2014-05-09 | 2019-11-12 | Hanon Systems | Air conditioning system for motor vehicles and control method thereof |
| CN109062278A (en) * | 2018-05-23 | 2018-12-21 | 浙江欧兰顿电器科技有限公司 | A kind of control method of PTC constant temperature warming core constant temperature warming |
| CN112319183B (en) * | 2020-11-12 | 2022-05-20 | 安徽江淮汽车集团股份有限公司 | PTC (positive temperature coefficient) cyclic heating module, control method and device and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899930A (en) * | 1988-05-20 | 1990-02-13 | Hitachi, Ltd. | Temperature controller for automobile air conditioner |
| CN201092244Y (en) * | 2007-08-10 | 2008-07-30 | 比亚迪股份有限公司 | Automobile air-conditioning system |
| CN201127125Y (en) * | 2007-11-12 | 2008-10-01 | 上海华族电热电器制造有限公司 | Double insulation metallic PTC electric heater with adjustable installation dimension |
| CN101902845A (en) * | 2010-07-08 | 2010-12-01 | 镇江东方电热科技股份有限公司 | Electric automobile PTC (Positive Temperature Coefficient) electric heater |
| CN202986734U (en) * | 2012-11-28 | 2013-06-12 | 芜湖博耐尔汽车电气系统有限公司 | Heater protection device of car air conditioner |
-
2012
- 2012-11-28 CN CN201210491074.0A patent/CN102991304B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899930A (en) * | 1988-05-20 | 1990-02-13 | Hitachi, Ltd. | Temperature controller for automobile air conditioner |
| CN201092244Y (en) * | 2007-08-10 | 2008-07-30 | 比亚迪股份有限公司 | Automobile air-conditioning system |
| CN201127125Y (en) * | 2007-11-12 | 2008-10-01 | 上海华族电热电器制造有限公司 | Double insulation metallic PTC electric heater with adjustable installation dimension |
| CN101902845A (en) * | 2010-07-08 | 2010-12-01 | 镇江东方电热科技股份有限公司 | Electric automobile PTC (Positive Temperature Coefficient) electric heater |
| CN202986734U (en) * | 2012-11-28 | 2013-06-12 | 芜湖博耐尔汽车电气系统有限公司 | Heater protection device of car air conditioner |
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| CN102991304A (en) | 2013-03-27 |
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Address after: 241009 Anhui city of Wuhu Province, Hunan Road economic and Technological Development Zone No. 2-8 Patentee after: BONAIRE AUTOMOTIVE ELECTRICAL SYSTEMS Co.,Ltd. Address before: 241009 Anhui city of Wuhu Province, Hunan Road economic and Technological Development Zone No. 118 Patentee before: Wuhu Bonaire Automotive Electrical System Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 |