CN106553499A - A kind of electrically heated electric power system of vehicle air conditioner and method - Google Patents
A kind of electrically heated electric power system of vehicle air conditioner and method Download PDFInfo
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- CN106553499A CN106553499A CN201510623062.2A CN201510623062A CN106553499A CN 106553499 A CN106553499 A CN 106553499A CN 201510623062 A CN201510623062 A CN 201510623062A CN 106553499 A CN106553499 A CN 106553499A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000004378 air conditioning Methods 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- 230000006870 function Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
Abstract
The invention discloses a kind of electrically heated electric power system of vehicle air conditioner and method, including：Controlling power circuit, current-limiting control circuit, main power supply circuits, temperature detect switch (TDS) and ptc heater；Wherein, the current-limiting control circuit, for when the temperature switch is in first state, heating to the ptc heater；The main power supply circuits, for when the temperature switch is in the second state, heating to the ptc heater；The electrically heated electric power system of the vehicle air conditioner can effectively solving PTC cold conditions when the problem powered of low-resistance, it is ensured that stable, the safety of the electrically heated electric power system of vehicle air conditioner.
Description
Technical field
The present invention relates to vehicle circuit design field, the electrically heated confession of more particularly to a kind of vehicle air conditioner
Electric system and method.
Background technology
Vehicle air conditioning is that refrigeration and the function of heating are provided in vehicle drive room, and refrigeration all passes through at present
Compressor compresses refrigerant is heated and is presently mainly provided by obtaining the heat of engine providing,
But in cold region, or the less vehicle of engine displacement, or pure electric vehicle all can be using electricity
The mode of heating is provided for vehicle and is heated, with the rise of PTC heating materials, the system of most of vehicle air conditioning
Heat is all electrically heated by PTC, but the characteristics of due to PTC itself, in cold conditions, is just starting to lead to
The state of low-resistance can be all shown when electric, this can greatly increase vehicle entirety within a certain period of time
For electric loading, the lighter can cause Interference from current, severe one make relevant condenser open circuit to other electrical equipment of vehicle,
Or vehicle stall.This phenomenon is showed in the pure electric vehicle of high-pressure delivery also less substantially, but
Show in the vehicle of low-pressure delivery just clearly.How vehicle air conditioner electrically heated power supply is solved not
Sharp problem, is the technical problem of those skilled in the art's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of electrically heated electric power system of vehicle air conditioner, the system can
The problem that low-resistance is powered during effectively solving PTC cold conditions, it is ensured that the electrically heated electric power system of vehicle air conditioner
Stable, safety.Additionally, a kind of it is a further object of the present invention to provide electrically heated confession of vehicle air conditioner
Method for electrically.
To solve above-mentioned technical problem, the present invention provides a kind of vehicle air conditioner electrically heated electric power system,
Including：
Controlling power circuit, current-limiting control circuit, main power supply circuits, temperature detect switch (TDS) and ptc heater；
Wherein,
The current-limiting control circuit, for when the temperature switch is in first state, to the PTC
Heater is heated；
The main power supply circuits, for when the temperature switch is in the second state, adding to the PTC
Hot device is heated.
Preferably, the controlling power circuit includes：Air conditioning warm air is switched and DC/DC power modules.
Preferably, the controlling power circuit also includes what is be connected with air conditioning warm air switch, for root
The controller of the air conditioning warm air switch is controlled according to vehicle interior temperature.
Preferably, the current-limiting control circuit is specially constant-current circuit, for when the temperature switch first
During state, the constant-current circuit carries out constant current heating to the ptc heater.
Preferably, the constant-current circuit includes：Not gate input resistance, not circuit, amplifier input resistance,
Discharge circuit, with gate circuit, current-limited power transistor and sampling resistor；Wherein,
The first end ground connection of the sampling resistor, second input of second end respectively at the discharge circuit
It is connected with the emitter stage of the current-limited power transistor；
The colelctor electrode of the current-limited power transistor is connected with the ptc heater, base stage and described and door
The output end of circuit is connected；
It is described to be connected with the output end of the discharge circuit with the second input of gate circuit, first input end
It is connected with the output end of the not circuit；
The first input end of the discharge circuit is connected with the first end of the amplifier input resistance；
Second end of the amplifier input resistance is connected with the controlling power circuit；
The input of the not circuit is connected with the first end of the not gate input resistance；
Second end of the not gate input resistance is connected with the temperature detect switch (TDS).
Preferably, the main power supply circuits include：Main power supply transistor input resistance and main confession electric transistor；
Wherein,
The emitter stage of the main confession electric transistor is connected to the ground, and colelctor electrode is connected with the ptc heater,
Base stage is connected with the first end of the main power supply transistor input resistance；
Second end of the main power supply transistor input resistance is connected with the temperature detect switch (TDS).
Preferably, the main power supply circuits also include：Drag down resistance, the low-resistance first end of the drawing with
Second end of the main power supply transistor input resistance is connected, the second end ground connection.
Preferably, also include：
For monitoring the electrically heated electric power system of the vehicle air conditioner with the presence or absence of abnormal monitoring electricity
Road；
It is connected with the supervisory circuit, for when having abnormal, the warning circuit reported to the police.
Preferably, the warning circuit includes：Indicator lamp and/or buzzer.
The application passes through a kind of electrically heated method of supplying power to of vehicle air conditioner, including：
The state of detection temperature switch；
When the temperature switch is in first state, ptc heater is carried out using current-limiting control circuit
Heating；
When the temperature switch is in the second state, the ptc heater is carried out using main power supply circuits
Heating.
The electrically heated electric power system of vehicle air conditioner provided by the present invention, including：Controlling power circuit,
Current-limiting control circuit, main power supply circuits, temperature detect switch (TDS) and ptc heater；Wherein, the Current limited Control electricity
Road, for when the temperature switch is in first state, heating to the ptc heater；It is described
Main power supply circuits, for when the temperature switch is in the second state, carrying out adding to the ptc heater
Heat；
The electric power system is added to PTC under two states respectively by current-limiting control circuit and main power supply circuits
Hot device is heated, i.e., when in-car just opens warm braw, the characteristics of due to PTC itself, in cold conditions, firm
The state of low-resistance can be all shown when being initially powered up, this can greatly increase automobile within a certain period of time
Overall confession electric loading, the lighter can cause Interference from current, severe one make relevant appearance electricity to other electrical equipment of automobile
Device is opened a way, or vehicle stall, therefore, the present invention is by current-limiting control circuit in ptc heater in low
During resistance state, which is heated, as current value is to limit, therefore is not in high current phenomenon,
The interference to other electrical equipment and damage are not resulted in；When ptc heater reaches predetermined temperature, i.e., will not go out
During existing low-resistance, heating and normal control can be carried out to which using main power supply circuits, be existed by the two circuits
Which is heated during ptc heater different conditions, the problem that low-resistance is powered during effectively solving PTC cold conditions, it is ensured that
Stable, the safety of the electrically heated electric power system of vehicle air conditioner.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Apply accompanying drawing to be used needed for example or description of the prior art to be briefly described, it should be apparent that, below
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, can be with according to the other accompanying drawings of accompanying drawing acquisition for providing.
Structural frames of the Fig. 1 by the electrically heated electric power system of vehicle air conditioner that the embodiment of the present invention is provided
Figure；
The knot of the electrically heated electric power system of another vehicle air conditioner that Fig. 2 is provided by the embodiment of the present invention
Structure block diagram.
Specific embodiment
The core of the present invention is to provide a kind of electrically heated electric power system of vehicle air conditioner, and the system can
The problem that low-resistance is powered during effectively solving PTC cold conditions, it is ensured that the electrically heated electric power system of vehicle air conditioner
Stable, safety.
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 by the electrically heated power supply of vehicle air conditioner that the embodiment of the present invention is provided is
The structured flowchart of system；The electric power system can include：
Controlling power circuit 1, current-limiting control circuit 2, main power supply circuits 3, temperature detect switch (TDS) 4 and PTC add
Hot device 5；Wherein,
The current-limiting control circuit 2, for when the temperature switch 4 is in first state, to described
Ptc heater 5 is heated；
The main power supply circuits 3, for when the temperature switch 4 is in the second state, to the PTC
Heater 5 is heated.
Wherein, the controlling power circuit 1 is in-car normal power supply circuits, is entered to whole electric power system
Row power supply；, for being opened and being closed according to design temperature threshold value, the temperature threshold can for temperature switch 4
Being temperature value that ptc heater 5 is changed into normal condition from cold conditions low resistive state.
Current-limiting control circuit 2, flows through 5 electric current of ptc heater by limiting, prevents PTC and add
Hot device 5 is powered in cold conditions low-resistance and produces high current and increase the overall confession electric loading of automobile, and the lighter can be right
Automobile other electrical equipment cause Interference from current, severe one can make relevant condenser open circuit, or vehicle stall shows
As.Wherein, the size for limiting electric current can be designed according to actual conditions.
Based on above-mentioned technical proposal, the electrically heated system of powering of vehicle air conditioner provided in an embodiment of the present invention
System, the system pass through current-limiting control circuit and main power supply circuits respectively under two states to ptc heater
Heated, i.e., when in-car just opens warm braw, the characteristics of due to PTC itself, in cold conditions, opened just
Begin when energization, can all show the state of low-resistance, it is whole that this can greatly increase automobile within a certain period of time
The confession electric loading of body, the lighter can cause Interference from current, severe one make relevant condenser to other electrical equipment of automobile
Open circuit, or vehicle stall, therefore, the present invention is by current-limiting control circuit in ptc heater in low
During resistance state, which is heated, as current value is to limit, therefore is not in high current phenomenon,
The interference to other electrical equipment and damage are not resulted in；When ptc heater reaches predetermined temperature, i.e., will not
When there is low-resistance, heating and normal control can be carried out to which using main power supply circuits, by the two circuits
Which is heated in ptc heater different conditions, the problem that low-resistance is powered during effectively solving PTC cold conditions,
Ensure stable, the safety of the electrically heated electric power system of vehicle air conditioner.
Based on above-mentioned specific embodiment, the controlling power circuit of the present invention can include：Air conditioning warm air is switched
With DC/DC power modules.
Wherein, DC/DC power modules are used to obtain DC voltage VCC, and air conditioning warm air is switched for user
Air conditioning warm air and conducting power supply circuits are opened, wherein optionally, the controlling power circuit also includes and institute
State what air conditioning warm air switch was connected, for the control of the air conditioning warm air switch is controlled according to vehicle interior temperature
Device processed.
Herein for raising Consumer's Experience, it may not be necessary to which user does it yourself to open air conditioning warm air switch,
Can be automatically performed by controller；Such as controller is by detecting whether vehicle interior temperature reaches user's setting
The temperature of air-conditioning is opened, air conditioning warm air switch is if so, then controlled and is opened, if it is not, then controlling heater switch
Closure；Certainly user still can be opened and closed according to the actual demand of itself manually.
Based on above-mentioned specific embodiment, the current-limiting control circuit of the present invention is specifically as follows constant-current circuit, uses
When the temperature switch first state, the constant-current circuit carries out constant current to the ptc heater and adds
Heat.Ensure the stability of electric power system.
Based on above-mentioned specific embodiment, the constant-current circuit of the present invention can include：Not gate input resistance, it is non-
Gate circuit, amplifier input resistance, discharge circuit, with gate circuit, current-limited power transistor and sampling resistor；
Wherein,
The first end ground connection of the sampling resistor, second input of second end respectively at the discharge circuit
It is connected with the emitter stage of the current-limited power transistor；
The colelctor electrode of the current-limited power transistor is connected with the ptc heater, base stage and described and door
The output end of circuit is connected；
It is described to be connected with the output end of the discharge circuit with the second input of gate circuit, first input end
It is connected with the output end of the not circuit；
The first input end of the discharge circuit is connected with the first end of the amplifier input resistance；
Second end of the amplifier input resistance is connected with the controlling power circuit；
The input of the not circuit is connected with the first end of the not gate input resistance；
Second end of the not gate input resistance is connected with the temperature detect switch (TDS).
Based on above-mentioned specific embodiment, the main power supply circuits of the present invention can include：Main confession electric transistor is defeated
Enter resistance and main confession electric transistor；Wherein,
The emitter stage of the main confession electric transistor is connected to the ground, and colelctor electrode is connected with the ptc heater,
Base stage is connected with the first end of the main power supply transistor input resistance；
Second end of the main power supply transistor input resistance is connected with the temperature detect switch (TDS).
Based on above-mentioned specific embodiment, the main power supply circuits of the present invention can also include：Resistance is dragged down, institute
State and draw low-resistance first end and the second end of the main power supply transistor input resistance to be connected, the second termination
Ground.Ensure that circuit is accurately in open-circuit condition when ptc heater is in cold conditions low-resistance, so as to ensure
The stability and reliability of electric power system.
Wherein, Fig. 2 is refer on the basis of above-mentioned whole embodiments, Fig. 2 gives the present invention one to be had
The embodiment of body；The specific work process of the electric power system is as follows：
In the state of ACC (automobile auxiliary power circuit) is powered, after air conditioning warm air switch 11 is connected,
DC/DC power modules 12 it is electric and export DC voltage VCC, not circuit 22, discharge circuit 24,
Start working because obtaining electric VCC with gate circuit 25.
In the cold state, as temperature detect switch (TDS) 4 is in open-circuit condition, resistance 32 is being dragged down in addition by main confession
The main confession electric transistor of electric transistor input resistance 31 pairs 33 is further dragged down so that main confession electric transistor
33 be in open-circuit condition, equally also cause not circuit 22 input be low level (such as：DC0V)
State, so that the output of not circuit 22 high level is (such as：DC5V) give gate circuit 25；Due to
Discharge circuit 24 exports a high level (such as always：DC5V), so now high with gate circuit output
Level is (such as：DC5V), current limliting high power transistor 26 is turned on, in the above case, DC12V vapour
Car power supply constitutes loop by TPC heaters 5, current limliting high power transistor 26, sampling resistor 27, right
Ptc heater 5 is powered, due to passing through the electric current of sampling resistor 27 by 24 input of discharge circuit
The ratio of 27 resistance value of magnitude of voltage and sampling resistor is worth to, 24 input terminal voltage value of discharge circuit and sampling
When 27 resistance value of resistance is fixed value, the electric current for flowing through ptc heater 5 is also fixed value, and this allows for
Even if ptc heater 5 is powered in the cold state, 5 power circuit of ptc heater can be also caused to be unlikely to into
For a low-resistance loop close to short-circuit condition.
With the work of ptc heater 5, the temperature detect switch (TDS) 4 for mutually leaning on therewith is closed after reaching its temperature control point,
So that VCC voltages are added to main power supply by temperature detect switch (TDS) 4, main power supply transistor input resistance 31
In the base stage of transistor 33 so that main confession electric transistor 33 is turned on, due to ptc heater 5 now
Jing has worked a period of time, according to the electricity that the characteristic of PTC positive temperature coefficients, ptc heater itself are produced
Resistance will not make ptc heater power supply circuits become a low-resistance loop；Meanwhile, VCC voltages pass through
Temperature detect switch (TDS) 4, not gate input resistance 21 are added to the input of not circuit 21, now not circuit
21 output low levels are (such as：DC0V) to gate circuit 25, just low level is exported (such as with gate circuit 25：
DC0V) to current limliting high power transistor 26, current limliting high power transistor cut-off so that sampling resistor 27
Upper no current passes through, and this also significantly reduces the burden of sampling resistor 27, protects sampling resistor 27.
The circuit be given in Fig. 2 have three states, first by the temperature detect switch (TDS), discharge circuit,
Current limliting confession is carried out to the PTC worked under cold conditions with gate circuit, current limliting high power transistor formation constant-current circuit
Electricity, but it is not excluded for the current-limiting circuit formed using additive method (such as Zener diode)；Secondly by institute
State temperature detect switch (TDS), not circuit and gate circuit and realize the control to current-limiting circuit so that current-limiting circuit
Quit work into after normal work certain hour in PTC, be conducive to the protection of sampling resistor；Finally lead to
The main current supply circuit that the temperature detect switch (TDS), main confession electric transistor form PTC is crossed, is easy to PTC from cold conditions mistake
The power supply spent under normal operating conditions.
Completed by above procedure and the current limliting under 5 cold conditions of ptc heater is powered, it is normal to the later stage
Power supply, so as to when solving the problems, such as that ptc heater cold conditions is powered due to circuit heavy duty caused by low resistance state
Problem.And solve power supply circuits of the prior art there are current detection circuit and in ptc heater
Stopped power supply after high current is detected during cold conditions low-resistance at once, and then the endless loop that may cause not power is existing
As.
Based on above-mentioned each specific embodiment, the electric power system that the present invention is provided can also include：
For monitoring the electrically heated electric power system of the vehicle air conditioner with the presence or absence of abnormal monitoring electricity
Road；
It is connected with the supervisory circuit, for when having abnormal, the warning circuit reported to the police.
Optionally, the warning circuit includes：Indicator lamp and/or buzzer.
By arranging supervisory circuit, can be used for observation circuit whether normal work, and using indicator lamp,
The prompting such as buzzer instrument carries out abnormal prompt to user.Prevent failure condition and the person to user
Property safety causes to damage.Improve the security of electric power system.
The electrically heated electric power system of vehicle air conditioner is embodiments provided, above-mentioned system can be passed through
The problem that low-resistance is powered when system can effectively solve the problem that PTC cold conditions, it is ensured that the electrically heated power supply of vehicle air conditioner
Stable, the safety of system.
Below the electrically heated method of supplying power to of vehicle air conditioner provided in an embodiment of the present invention is introduced,
The electrically heated method of supplying power to of vehicle air conditioner described below and above-described vehicle air conditioner electricity plus
The electric power system of heat can be mutually to should refer to.
The embodiment of the present invention also provides a kind of vehicle air conditioner electrically heated method of supplying power to, and the method can be with
Including：
The state of detection temperature switch；
When the temperature switch is in first state, ptc heater is carried out using current-limiting control circuit
Heating；
When the temperature switch is in the second state, the ptc heater is carried out using main power supply circuits
Heating.
Wherein, the present invention passes through current-limiting control circuit when ptc heater is in low resistive state, i.e., now warm
When degree switch is in first state, ptc heater is heated, as current value is to limit, therefore
Be not in high current phenomenon, do not result in the interference to other electrical equipment and damage；When ptc heater reaches
During predetermined temperature, that is, when being not in low-resistance, and temperature switch be in the second state when, can using master
Power supply circuits carry out heating and normal control to ptc heater, by the two circuits in ptc heater not
Which is heated during with state, the problem that low-resistance is powered during effectively solving PTC cold conditions, it is ensured that vehicle air conditioner
Stable, the safety of electrically heated electric power system.
In specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is
With the difference of other embodiment, between each embodiment identical similar portion mutually referring to.It is right
For device disclosed in embodiment, as which corresponds to the method disclosed in Example, so description
Fairly simple, related part is referring to method part illustration.
Professional further appreciates that, with reference to respectively showing for the embodiments described herein description
The unit and algorithm steps of example, can with electronic hardware, computer software or the two be implemented in combination in,
It is in order to clearly demonstrate the interchangeability of hardware and software, general according to function in the above description
Describe the composition and step of each example.These functions actually with hardware or software mode performing,
Depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can be specific to each
Application using different methods to realize described function, but this realize it is not considered that beyond this
The scope of invention.
With reference to the embodiments described herein description method or directly can use the step of algorithm hardware,
The software module of computing device, or the combination of the two is implementing.Software module can be placed in and deposit at random
Reservoir (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electric erasable can be compiled
Appointing well known in journey ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In the storage medium of meaning other forms.
Above the electrically heated electric power system of vehicle air conditioner provided by the present invention and method have been carried out in detail
It is thin to introduce.Specific case used herein is set forth to the principle and embodiment of the present invention, with
The explanation of upper embodiment is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that
For those skilled in the art, under the premise without departing from the principles of the invention, may be used also
To carry out some improvement and modification to the present invention, these improve and modification also falls into the claims in the present invention
In protection domain.
Claims (10)
1. the electrically heated electric power system of a kind of vehicle air conditioner, it is characterised in that include：
Controlling power circuit, current-limiting control circuit, main power supply circuits, temperature detect switch (TDS) and ptc heater；
Wherein,
The current-limiting control circuit, for when the temperature switch is in first state, to the PTC
Heater is heated；
The main power supply circuits, for when the temperature switch is in the second state, adding to the PTC
Hot device is heated.
2. electric power system as claimed in claim 1, it is characterised in that the controlling power circuit includes：
Air conditioning warm air is switched and DC/DC power modules.
3. electric power system as claimed in claim 2, it is characterised in that the controlling power circuit is also wrapped
Include what is be connected with air conditioning warm air switch, open for the air conditioning warm air being controlled according to vehicle interior temperature
The controller of pass.
4. electric power system as claimed in claim 1, it is characterised in that the current-limiting control circuit is concrete
For constant-current circuit, for when the temperature switch first state, the constant-current circuit adds to the PTC
Hot device carries out constant current heating.
5. electric power system as claimed in claim 4, it is characterised in that the constant-current circuit includes：It is non-
Door input resistance, not circuit, amplifier input resistance, discharge circuit, with gate circuit, current-limited power crystalline substance
Body pipe and sampling resistor；Wherein,
The first end ground connection of the sampling resistor, second input of second end respectively at the discharge circuit
It is connected with the emitter stage of the current-limited power transistor；
The colelctor electrode of the current-limited power transistor is connected with the ptc heater, base stage and described and door
The output end of circuit is connected；
It is described to be connected with the output end of the discharge circuit with the second input of gate circuit, first input end
It is connected with the output end of the not circuit；
The first input end of the discharge circuit is connected with the first end of the amplifier input resistance；
Second end of the amplifier input resistance is connected with the controlling power circuit；
The input of the not circuit is connected with the first end of the not gate input resistance；
Second end of the not gate input resistance is connected with the temperature detect switch (TDS).
6. electric power system as claimed in claim 1, it is characterised in that the main power supply circuits include：
Main power supply transistor input resistance and main confession electric transistor；Wherein,
The emitter stage of the main confession electric transistor is connected to the ground, and colelctor electrode is connected with the ptc heater,
Base stage is connected with the first end of the main power supply transistor input resistance；
Second end of the main power supply transistor input resistance is connected with the temperature detect switch (TDS).
7. electric power system as claimed in claim 6, it is characterised in that the main power supply circuits also include：
Drag down resistance, the second end phase of the low-resistance first end of the drawing and the main power supply transistor input resistance
Even, the second end ground connection.
8. the electric power system as described in any one of claim 1 to 7, it is characterised in that also include：
For monitoring the electrically heated electric power system of the vehicle air conditioner with the presence or absence of abnormal monitoring electricity
Road；
It is connected with the supervisory circuit, for when having abnormal, the warning circuit reported to the police.
9. electric power system as claimed in claim 8, it is characterised in that the warning circuit includes：Refer to
Show lamp and/or buzzer.
10. the electrically heated method of supplying power to of a kind of vehicle air conditioner, it is characterised in that include：
The state of detection temperature switch；
When the temperature switch is in first state, ptc heater is carried out using current-limiting control circuit
Heating；
When the temperature switch is in the second state, the ptc heater is entered using main power supply circuits
Row heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623062.2A CN106553499B (en) | 2015-09-25 | 2015-09-25 | A kind of electrically heated power supply system of vehicle air conditioner and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623062.2A CN106553499B (en) | 2015-09-25 | 2015-09-25 | A kind of electrically heated power supply system of vehicle air conditioner and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106553499A true CN106553499A (en) | 2017-04-05 |
| CN106553499B CN106553499B (en) | 2019-07-23 |
Family
ID=58414526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510623062.2A Active CN106553499B (en) | 2015-09-25 | 2015-09-25 | A kind of electrically heated power supply system of vehicle air conditioner and method |
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| CN (1) | CN106553499B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420711A (en) * | 2001-11-15 | 2003-05-28 | 哈罗股份有限公司 | Electrical appliance with positive temperature coefficient heating component and control method thereof |
| EP1872984A1 (en) * | 2006-06-29 | 2008-01-02 | Denso Corporation | Load drive controller and control system |
| CN101434184A (en) * | 2007-11-16 | 2009-05-20 | 摩丁制造公司 | Auxialary electric heating apparatus for automobile and auxialary electric heating method for automobile |
| CN203651498U (en) * | 2013-12-13 | 2014-06-18 | 北汽福田汽车股份有限公司 | Heater device started in a staged mode |
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2015
- 2015-09-25 CN CN201510623062.2A patent/CN106553499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420711A (en) * | 2001-11-15 | 2003-05-28 | 哈罗股份有限公司 | Electrical appliance with positive temperature coefficient heating component and control method thereof |
| EP1872984A1 (en) * | 2006-06-29 | 2008-01-02 | Denso Corporation | Load drive controller and control system |
| CN101434184A (en) * | 2007-11-16 | 2009-05-20 | 摩丁制造公司 | Auxialary electric heating apparatus for automobile and auxialary electric heating method for automobile |
| CN203651498U (en) * | 2013-12-13 | 2014-06-18 | 北汽福田汽车股份有限公司 | Heater device started in a staged mode |
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| CN106553499B (en) | 2019-07-23 |
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