CN207657557U - A kind of high pressure PTC heating control systems of electric automobile air conditioner - Google Patents
A kind of high pressure PTC heating control systems of electric automobile air conditioner Download PDFInfo
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- CN207657557U CN207657557U CN201721745587.4U CN201721745587U CN207657557U CN 207657557 U CN207657557 U CN 207657557U CN 201721745587 U CN201721745587 U CN 201721745587U CN 207657557 U CN207657557 U CN 207657557U
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Abstract
The utility model is related to air conditioning for automobiles heating art, a kind of high pressure PTC heating control systems of electric automobile air conditioner, including vehicle-mounted low-voltage module are provided, on-board high-voltage module, and, the isolation module for separating vehicle-mounted low-voltage module and on-board high-voltage module.A kind of high pressure PTC heating control systems of electric automobile air conditioner of the utility model are communicated by LIN buses with automotive air-conditioning controller, and use IGBT, can preferably control the function of PTC heating;The reliable and stable of protection low tension may be implemented in low tension protection circuit, has anti-reverse, anti-static function;Vehicle-mounted low-tension supply voltage can be converted into 5V by integrated linear voltage-stabilized power supply circuit from 12V, be used for other each circuits;Interference signal on 5V voltages can be filtered out using digital power filter circuit;Microcontroller stable operation can be ensured using reset circuit of SCM, when being abnormal situation, reset circuit of SCM automatically generates the clock signal of reset.
Description
Technical field
The utility model is related to air conditioning for automobiles heating art, the high pressure PTC heating controls of specially a kind of electric automobile air conditioner
System processed.
Background technology
It is always the emphasis discussed in automobile industry that fuel vehicle, which forbids selling time point, and India, Norway, France and Britain are
Through announcing, fuel vehicle will be gradually eliminated, will be replaced with more clean pure electric vehicle or hybrid electric vehicle.Wherein Norway sets most
The time limit is 2025 afterwards, and India is the year two thousand thirty, and Britain and method state are all the year two thousand forties.
New-energy automobile has become a staple of conversation of automobile market instantly, its scope also gradually gets up extensively,
Support and a series of positive factor of the pure electric automobile due to public subsidies policy, promote new-energy automobile gradually " fire "
Get up.The market burning hot in face of this, part vehicle enterprise have specified new-energy automobile to be developed, and furnish a huge amount of money for build new energy
New energy to reach the requirement of discharge etc., and is considered as following development priority, either Chinese Brand also by industrial chain
It is that joint brand all develops towards this direction.
China, which is being studied, finally forbids internal combustion engine automobile, to make new-energy automobile faster be popularized.
For the enterprise of vehicle magnificent also in the layout for accelerating new energy product, numerous and confused publication plans that the development of new plan application Future New Energy Source automobile becomes
Gesture.
The heating function of orthodox car air-conditioning is realized by heat source of engine coolant.Pure electric automobile does not start
After machine, the heating function of air-conditioning will be realized mainly by high pressure PTC heating, therefore the high pressure PTC of New-energy electric vehicle air-conditioning
Heating control system will be widely used.
Utility model content
The purpose of this utility model is to provide a kind of high pressure PTC heating control systems of electric automobile air conditioner, pass through LIN
Bus is communicated with automotive air-conditioning controller, and uses IGBT, can preferably control the function of PTC heating.
To achieve the above object, the utility model embodiment provides the following technical solutions:A kind of height of electric automobile air conditioner
PTC heating control systems, including vehicle-mounted low-voltage module are pressed,
On-board high-voltage module,
And the isolation module for separating the vehicle-mounted low-voltage module and the on-board high-voltage module;
The vehicle-mounted low-voltage module includes vehicle-mounted low-tension supply, microcontroller and is instructed for receiving air-conditioner controller
LIN communicating circuits, the output end of the vehicle-mounted low-tension supply are electrically connected with the input terminal of the LIN communicating circuits, the monolithic
The input terminal of the output end of machine and corresponding LIN communicating circuit pins is electrically connected with the LIN communicating circuits;
The on-board high-voltage module include on-board high-voltage power supply, PTC load and IGBT, the on-board high-voltage power supply it is defeated
Outlet is electrically connected with the PTC input terminals loaded, and the output end of the PTC loads is electrically connected with the input terminal of the IGBT;
The isolation module includes IGBT drive circuit, and the output end of the microcontroller is defeated with the IGBT drive circuit
Enter end electrical connection, the output end of the IGBT drive circuit is electrically connected with the input terminal of the IGBT.
Further, the vehicle-mounted low-voltage module further includes low tension protection circuit and low-voltage filter circuit, the vehicle
The output end for carrying low-tension supply is electrically connected with the input terminal of the low tension protection circuit, the low tension protection circuit
Output end is electrically connected with the input terminal of the low-voltage filter circuit, and output end and the LIN of the low-voltage filter circuit are communicated
The 12V power inputs of circuit are electrically connected.
Further, the vehicle-mounted low-voltage module further includes integrated linear voltage-stabilized power supply circuit, the low-voltage filter circuit
Output end is electrically connected with the input terminal.
Further, the vehicle-mounted low-voltage module further includes digital power filter circuit, the digital power filter circuit
Input terminal is connect with the output end of the integrated linear voltage-stabilized power supply circuit, the LIN communicating circuits and the microcontroller
5V energization inputs are electrically connected with the output end of the digital power filter circuit.
Further, the vehicle-mounted low-voltage module further includes program download interface, and the 5V power supplies of described program download interface are defeated
Enter end to connect with the output end of the integrated linear voltage-stabilized power supply circuit, the output end of the microcontroller and corresponding program are downloaded
The input terminal of pin is connect with described program download interface..
Further, the vehicle-mounted low-voltage module further includes reset circuit of SCM, the output end of the microcontroller and multiple
Position pin input end is electrically connected with the reset circuit of SCM.
Further, the vehicle-mounted low-voltage module further includes temperature sensing circuit, the output end of the temperature sensing circuit with
The AD pin input ends of the microcontroller are electrically connected.
Further, the isolation module further includes current detection circuit, the high voltage input terminal of the current detection circuit with
The output end of the IGBT is electrically connected, the AD pin input ends of the low-voltage output of the current detection circuit and the microcontroller
Electrical connection.
Further, the isolation module further includes DC/DC booster power supply circuits, the 15V of the DC/DC booster power supply circuits
Output end is electrically connected with the 15V input terminals of the IGBT drive circuit.
Further, the on-board high-voltage power supply further includes high-pressure filter circuit, the input terminal of the high-pressure filter circuit with
The output end of the on-board high-voltage power supply is electrically connected, the input terminal of the output end of the high-pressure filter circuit and PTC loads
Electrical connection.
Compared with prior art, the utility model has the beneficial effects that:
1, it is communicated by LIN buses and automotive air-conditioning controller, and uses IGBT, can preferably controlled PTC and add
The function of heat;
2, the reliable and stable of protection low tension may be implemented in low tension protection circuit, has anti-reverse, anti-static function;
3, vehicle-mounted low-tension supply voltage can be converted into 5V by integrated linear voltage-stabilized power supply circuit from 12V, for other each electricity
Road uses;
4, the interference signal on 5V voltages can be filtered out using digital power filter circuit;
5, microcontroller can carry out program burn writing by program download interface;
6, microcontroller stable operation, when being abnormal situation, monolithic processor resetting can be ensured using reset circuit of SCM
Circuit automatically generates the clock signal of reset;
7, the actual temperature that can acquire IGBT, PTC load in real time by microcontroller using temperature sensing circuit, works as generation
When excess temperature, heating function is closed, ensures the reliable and stable operation of system;
8, the electric current that PTC load consumptions can be acquired in real time by IGBT using current detection circuit, when the electric current of generation
When excessive or too small, heating function is closed, and the function of isolation high-low pressure can be played, guarantee system is reliablely and stablely transported
Row.
Description of the drawings
Fig. 1 is a kind of electricity of the high pressure PTC heating control systems for electric automobile air conditioner that the utility model embodiment provides
Road functional block diagram;
In reference numeral:1- low tension protection circuits;2- low-voltage filter circuits;3- integrated linear voltage-stabilized power supply circuits;
4- digital power filter circuits;5- program download interfaces;6-LIN communicating circuits;7- microcontrollers;8- reset circuit of SCM;9-
Temperature sensing circuit;10- current detection circuits;11-DC/DC booster power supply circuits;12- high-pressure filter circuits;13-IGBT drives
Circuit;14- high voltage interfaces;15-PTC is loaded;16-IGBT;The vehicle-mounted low-tension supplies of 17-;18- on-board high-voltage power supplys.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The all other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model embodiment provides a kind of high pressure PTC heating control systems of electric automobile air conditioner,
Including vehicle-mounted low-voltage module, on-board high-voltage module and isolation module, wherein isolation module is used for vehicle-mounted low-voltage module and vehicle
High-pressure modular is carried to keep apart.Wherein, vehicle-mounted low-voltage module includes vehicle-mounted low-tension supply 17, microcontroller 7 and for receiving sky
Adjust the LIN communicating circuits 6 of controller instruction, the input of the output end of the vehicle-mounted low-tension supply 17 and the LIN communicating circuits 6
The input terminal of end electrical connection, the output end of the microcontroller 7 and corresponding 6 pin of LIN communicating circuits communicates electricity with the LIN
Road 6 is electrically connected, specifically, the RXD pins and TXD pins of microcontroller are respectively connected to the ends RXD and the TXD of LIN communicating circuits 6
End.On-board high-voltage module include on-board high-voltage power supply 18, PTC load 15 and IGBT 16, the on-board high-voltage power supply 18 it is defeated
Outlet is electrically connected with the input terminal of PTC loads 15, the input terminal of the output end and the IGBT 16 of the PTC loads 15
Electrical connection.Isolation module includes IGBT drive circuit 13, and the output end of the microcontroller 7 is defeated with the IGBT drive circuit 13
Enter end electrical connection, the output end of the IGBT drive circuit 13 is electrically connected with the input terminal of the IGBT 16.In real work
In, vehicle-mounted low-tension supply 17 gives entire on-board high-voltage module for power supply to entire vehicle-mounted low-voltage module power supply, on-board high-voltage module.When
After automotive air-conditioning controller obtains the instruction for needing to adjust temperature that people provide, it can send out temperature adjustment to LIN communicating circuits 6 and refer to
It enables, LIN communicating circuits 6 pass to microcontroller 7 again after receiving instruction, and microcontroller 7 is existing S9S12G64 chips, it has 64
A pin, its 53 pins are electrically connected with the output end of LIN communicating circuits 6.Microcontroller 7 transmits signal after obtaining heating instructions
To IGBT drive circuit 13, IGBT drive circuit 13 controls being switched on and off for IGBT 16, and with isolation high-low pressure, voltage
The function of conversion and protection IGBT 16.The last PTC that passes to again loads 15, PTC loads, 15 fever, to realize air conditioning for automobiles
Heat supply.Microcontroller 7 also has the function of uploading operation state, is monitored in real time for people.LIN communicating circuits 6 are also available circuit,
Its purpose is to play communication miscellaneous function.
As the prioritization scheme of the utility model, referring to Fig. 1, vehicle-mounted low-voltage module further includes low tension protection circuit
1 and low-voltage filter circuit 2, the input terminal of the output end of the vehicle-mounted low-tension supply 17 and the low tension protection circuit 1
Electrical connection, the output end of the low tension protection circuit 1 is electrically connected with the input terminal of the low-voltage filter circuit 2, described low
The output end of press filtration wave circuit 2 is electrically connected with the 12V power inputs of the LIN communicating circuits.Electricity is protected using low-tension supply
Road 1 can protect the reliable and stable of low tension, and there is reversal connection, anlistatig function, the low-voltage filter circuit 2 of use can filter out
Interference signal in low tension, then access the signal that LIN communicating circuits can be made to obtain after LIN communicating circuits and more stablize.
Said program is advanced optimized, referring to Fig. 1, vehicle-mounted low-voltage module further includes integrated linear voltage-stabilized power supply circuit 3,
The output end of the low-voltage filter circuit 2 is electrically connected with the input terminal, the output end of the integrated linear voltage-stabilized power supply circuit
It is electrically connected with the LIN communicating circuits.Integrated linear voltage-stabilized power supply circuit 3 realizes that 12V turns the function of 5V so that access LIN is logical
The voltage for interrogating circuit is 5V, convenient for being adapted to the driving voltage of microcontroller 7 again.
Said program is advanced optimized, referring to Fig. 1, above-mentioned vehicle-mounted low-voltage module further includes digital power filter circuit 4,
The input terminal of the digital power filter circuit 4 is connect with the output end of the integrated linear voltage-stabilized power supply circuit 3, the LIN
The 5V energization inputs of communicating circuit and the microcontroller 7 are electrically connected with the output end of the digital power filter circuit 4.
Digital power filter circuit 4 can filter out the interference signal on 5V voltages, then give microcontroller 7, IGBT drive circuit 13 respectively
And LIN communicating circuits power supply.50 pins of microcontroller 7 are electrically connected with the output end of digital power filter circuit 4.
As the prioritization scheme of the utility model, vehicle-mounted low-voltage module further includes program download interface 5, and described program is downloaded
The 5V energization inputs of interface 5 are connect with the output end of the integrated linear voltage-stabilized power supply circuit 3, the output of the microcontroller 7
End and input terminal correspond to program download the equal of pin and are connect with described program download interface 5.Program download interface 5 can realize list
Piece machine 7 carries out program burn writing by it.16 pins and 4 pins of microcontroller 7 are electrically connected with program download interface 5.
As the prioritization scheme of the utility model, referring to Fig. 1, vehicle-mounted low-voltage module further includes reset circuit of SCM 8,
The output end and reset pin input terminal of the microcontroller 7 are electrically connected with the reset circuit of SCM 8.Monolithic processor resetting
Circuit 8 can ensure 7 stable operation of microcontroller, and when being abnormal situation, it is multiple that reset circuit of SCM 8 automatically generates microcontroller 7
The clock signal of position.4 pins and 64 pins of microcontroller 7 are electrically connected with reset circuit of SCM 8.
As the prioritization scheme of the utility model, referring to Fig. 1, vehicle-mounted low-voltage module further includes temperature sensing circuit 9, temperature
The output end of degree detection circuit 9 is electrically connected with the AD pin input ends of microcontroller 7.Temperature detecting module acquire in real time IGBT 16,
The actual temperature of PTC cores closes heating function when generating excess temperature, ensures the reliable and stable operation of system.The 35 of microcontroller 7
Pin is electrically connected with the output end of temperature sensing circuit 9.
As the prioritization scheme of the utility model, referring to Fig. 1, isolation module further includes current detection circuit 10, it is described
The high voltage input terminal of current detection circuit 10 is electrically connected with the output end of the IGBT 16, the current detection circuit 10 it is low
Pressure output end is electrically connected with the AD pin input ends of the microcontroller 7.The acquisition PTC cores consumption in real time of current detection circuit 10
Electric current closes heating function, and current sensor has the work(of isolation high-low pressure when generation electric current is excessive or electric current is too small
Can, ensure the reliable and stable operation of system.47 pins of microcontroller 7 are electrically connected with the output end of current detection circuit 10.
As the prioritization scheme of the utility model, referring to Fig. 1, isolation module further includes DC/DC booster power supply circuits 11,
The 15V output ends of the DC/DC booster power supply circuits 11 are electrically connected with the 15V input terminals of the IGBT drive circuit 13.DC/DC
Booster power supply circuit 11 can be completed to convert to high-pressure side 15V from low-pressure side 12V, be powered to IGBT drive circuit 13 with realizing,
And high-low voltage power source is isolated.
As the prioritization scheme of the utility model, referring to Fig. 1, on-board high-voltage power supply 18 further includes high-pressure filter circuit 12
And high voltage interface 14, the output end of on-board high-voltage power supply 18 are connect with the input terminal of high voltage interface 14, high voltage interface 14 it is defeated
Outlet is electrically connected with the input terminal of the high-pressure filter circuit 12, and the output end of the high-pressure filter circuit 12 is negative with the PTC
Carry 15 input terminal electrical connection.After the voltage that on-board high-voltage power supply 18 exports filters out interference signal by high-pressure filter circuit 12
Can more it stablize.
In the present system, low tension protection circuit 1, low-voltage filter circuit 2, integrated linear voltage-stabilized power supply circuit 3, number
Electric source filter circuit 4, program download interface 5, LIN communicating circuits 6, microcontroller 7, reset circuit of SCM 8, temperature sensing circuit
9, current detection circuit 10, DC/DC booster power supply circuits 11, high-pressure filter circuit 12, IGBT drive circuit 13, high voltage interface
14, PTC loads 15, IGBT 16 etc. are the prior art, and constituent element and its connection pin are the prior art.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of high pressure PTC heating control systems of electric automobile air conditioner, it is characterised in that:
Including vehicle-mounted low-voltage module,
On-board high-voltage module,
And the isolation module for separating the vehicle-mounted low-voltage module and the on-board high-voltage module;
The vehicle-mounted low-voltage module includes that vehicle-mounted low-tension supply, microcontroller and the LIN for receiving air-conditioner controller instruction lead to
Interrogate circuit, the output end of the vehicle-mounted low-tension supply is electrically connected with the input terminal of the LIN communicating circuits, the microcontroller it is defeated
The input terminal of outlet and corresponding LIN communicating circuit pins is electrically connected with the LIN communicating circuits;
The on-board high-voltage module includes on-board high-voltage power supply, PTC loads and IGBT, the output end of the on-board high-voltage power supply
It is electrically connected with the input terminal of PTC loads, the output end of the PTC loads is electrically connected with the input terminal of the IGBT;
The isolation module includes IGBT drive circuit, the input terminal of the output end of the microcontroller and the IGBT drive circuit
Electrical connection, the output end of the IGBT drive circuit are electrically connected with the input terminal of the IGBT.
2. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes low tension protection circuit and low-voltage filter circuit, the output end of the vehicle-mounted low-tension supply with
The input terminal of the low tension protection circuit is electrically connected, output end and the low-voltage filter of the low tension protection circuit
The input terminal of circuit is electrically connected, the 12V power input electricity of the output end of the low-voltage filter circuit and the LIN communicating circuits
Connection.
3. a kind of high pressure PTC heating control systems of electric automobile air conditioner as claimed in claim 2, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes integrated linear voltage-stabilized power supply circuit, output end and the input terminal electricity of the low-voltage filter circuit
Connection.
4. a kind of high pressure PTC heating control systems of electric automobile air conditioner as claimed in claim 3, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes digital power filter circuit, input terminal and the integrated linear of the digital power filter circuit
The output end of voltage-stabilized power supply circuit connects, the 5V energization inputs of the LIN communicating circuits and the microcontroller with it is described
The output end of digital power filter circuit is electrically connected.
5. a kind of high pressure PTC heating control systems of electric automobile air conditioner as claimed in claim 3, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes program download interface, and the 5V energization inputs and the integrated linear of described program download interface are steady
The output end of piezoelectricity source circuit connects, the output end of the microcontroller and corresponding program download the input terminal of pin with it is described
Program download interface connects.
6. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes reset circuit of SCM, the output end and reset pin input terminal of the microcontroller with it is described
Reset circuit of SCM is electrically connected.
7. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
Vehicle-mounted low-voltage module further includes temperature sensing circuit, and the output end of the temperature sensing circuit and the AD pins of the microcontroller are defeated
Enter end electrical connection.
8. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
Isolation module further includes current detection circuit, and the high voltage input terminal of the current detection circuit and the output end of the IGBT are electrically connected
It connects, the low-voltage output of the current detection circuit is electrically connected with the AD pin input ends of the microcontroller.
9. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
Isolation module further includes DC/DC booster power supply circuits, and 15V output ends and the IGBT of the DC/DC booster power supply circuits drive
The 15V input terminals electrical connection of dynamic circuit.
10. a kind of high pressure PTC heating control systems of electric automobile air conditioner as described in claim 1, it is characterised in that:It is described
On-board high-voltage power supply further includes high-pressure filter circuit, and the input terminal of the high-pressure filter circuit is defeated with the on-board high-voltage power supply
Outlet is electrically connected, and the output end of the high-pressure filter circuit is electrically connected with the PTC input terminals loaded.
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CN201721745587.4U CN207657557U (en) | 2017-12-14 | 2017-12-14 | A kind of high pressure PTC heating control systems of electric automobile air conditioner |
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CN201721745587.4U CN207657557U (en) | 2017-12-14 | 2017-12-14 | A kind of high pressure PTC heating control systems of electric automobile air conditioner |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109986929A (en) * | 2019-04-19 | 2019-07-09 | 重庆福睿安电子有限公司 | A kind of high-efficiency vehicle-mounted metal PTC heater |
CN111055652A (en) * | 2019-12-05 | 2020-04-24 | 浙江合众新能源汽车有限公司 | Air conditioner domain control system for pure electric vehicle |
CN111942107A (en) * | 2020-08-31 | 2020-11-17 | 江苏群达智能科技有限公司 | New energy automobile PTC heating control system |
CN114193997A (en) * | 2021-05-20 | 2022-03-18 | 孝感华工高理电子有限公司 | PTC heater noise experiment platform based on LIN communication |
CN115771380A (en) * | 2022-12-16 | 2023-03-10 | 安徽江淮汽车集团股份有限公司 | PTC heater of pure electric vehicle and fault diagnosis method |
-
2017
- 2017-12-14 CN CN201721745587.4U patent/CN207657557U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109986929A (en) * | 2019-04-19 | 2019-07-09 | 重庆福睿安电子有限公司 | A kind of high-efficiency vehicle-mounted metal PTC heater |
CN111055652A (en) * | 2019-12-05 | 2020-04-24 | 浙江合众新能源汽车有限公司 | Air conditioner domain control system for pure electric vehicle |
CN111942107A (en) * | 2020-08-31 | 2020-11-17 | 江苏群达智能科技有限公司 | New energy automobile PTC heating control system |
CN114193997A (en) * | 2021-05-20 | 2022-03-18 | 孝感华工高理电子有限公司 | PTC heater noise experiment platform based on LIN communication |
CN115771380A (en) * | 2022-12-16 | 2023-03-10 | 安徽江淮汽车集团股份有限公司 | PTC heater of pure electric vehicle and fault diagnosis method |
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