CN107379925A - A kind of vehicle and its ac control circuit - Google Patents
A kind of vehicle and its ac control circuit Download PDFInfo
- Publication number
- CN107379925A CN107379925A CN201710358617.4A CN201710358617A CN107379925A CN 107379925 A CN107379925 A CN 107379925A CN 201710358617 A CN201710358617 A CN 201710358617A CN 107379925 A CN107379925 A CN 107379925A
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- Prior art keywords
- relay
- condenser
- air
- contact
- conditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/3276—Cooling devices output of a control signal related to a condensing unit
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of ac control circuit, including condenser circuit；Also include resistance element, pressure value of the resistance element in air-conditioning high tension loop accesses condenser circuit when being not more than preset pressure value, and the pressure in air-conditioning high tension loop exits condenser circuit when being more than preset pressure value.Using ac control circuit provided by the invention, when the pressure value in air-conditioning system high tension loop is not more than preset pressure value, resistance element access condenser circuit, condenser low speed is run；When driving indoor environment temperature is too high, when pressure exceedes preset pressure value in high tension loop, resistance element exits condenser circuit, condenser high-speed cruising, and then realizes refrigeration.Reduce the failure for causing compressor to be hit damage due to frequent start-stop compressor, improve the reliability and comfortableness of system.The load of vehicle circuitry is reduced, extends the service life of vehicle generator and battery.The invention also discloses a kind of vehicle for including above-mentioned ac control circuit.
Description
Technical field
The present invention relates to vehicle air conditioning control technology field, more specifically to a kind of ac control circuit, further relates to
A kind of vehicle with the ac control circuit.
Background technology
Air conditioning system for vehicle is mainly cold by the gaseous state of the gaseous coolant boil down to HTHP of low-temp low-pressure by compressor
Matchmaker, condenser is flowed through, realize transformation of the high pressure gaseous refrigerant to high temperature high-pressure liquid refrigerant, drying tank is done
Dry, HTHP liquid refrigerant enters evaporator by expansion valve, is changed into the gaseous coolant of low-temp low-pressure, in this liquid refrigerants
Cabin interior heat is taken away in gasification, plays a part of refrigeration.
Existing market light truck uses single speed condenser fan, is all constant rotating speed as long as single speed condenser fan is run,
Its rotating speed is not adjusted because of the difference of ambient temperature.It is cold during single speed condenser fan air-conditioning system is run
Solidifying fan is only capable of providing constant rotating speed, and in the case where environment temperature is higher, the air-conditioning system refrigeration is not good enough；Air-conditioning system
During system operation, vehicle circuitry load is higher, and generator output electric energy is more, and compressor oepration at full load, when due to the external world
Change and when causing pressure rise in system pipeline, the compressor of fixed displacement can stall, after the pressure in pipeline declines,
Compressor brings into operation again, and start and stop are frequent, and compressor service life is shorter.
In summary, the problems such as air conditioning energy consumption is high, compressor service life is shorter how is efficiently solved, is current
Those skilled in the art's urgent problem.
The content of the invention
In view of this, first purpose of the invention is to provide a kind of ac control circuit, the ac control circuit
The problem of structure design can efficiently solve air conditioning energy consumption height, compressor service life is shorter, of the invention second
Purpose is to provide a kind of vehicle for including above-mentioned ac control circuit.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of ac control circuit, including condenser circuit；Also include resistance element, the resistance element is in air-conditioning high pressure
Pressure value in loop accesses the condenser circuit when being not more than preset pressure value, the pressure in the air-conditioning high tension loop
The condenser circuit is exited during more than the preset pressure value.
Preferably, in above-mentioned ac control circuit, condenser relay, Medium voltage switch or circuit breaker are connected with the condenser circuit
Connected with the contact coil of the condenser relay, to be pressed with the pressure value in the air-conditioning high tension loop no more than default
During force value, the contact coil and power supply that control the condenser relay disconnect, and the pressure in the air-conditioning high tension loop is big
When the preset pressure value, the contact coil and power on of the condenser relay are controlled；The condenser relay
Normally-closed contact disconnect the resistance element and the condenser circuit when the contact coil of the condenser relay obtains electric
Connection, the normally opened contact of the condenser relay is connected described cold when the contact coil of the condenser relay obtains electric
Condenser loop.
Preferably, in above-mentioned ac control circuit, in addition to speed governing relay and compressor relay, the compressor after
The contact coil of electrical equipment obtains electric when air-conditioning switch closes, and the normally opened contact of the compressor relay is in the compressor relay
The contact coil of device connects the contact coil of the speed governing relay when obtaining electric；The normally opened contact of the speed governing relay is described
When the contact coil of speed governing relay obtains electric, the connection of the resistance element and the condenser circuit is connected.
Preferably, in above-mentioned ac control circuit, the first end of the contact coil of the compressor relay connects with power supply
Connect, the output end connection of the second end and controller；The input of the controller is connected with the first end of the air-conditioning switch, institute
The second end for stating air-conditioning switch is connected with power supply.
Preferably, in above-mentioned ac control circuit, the normally opened contact of the speed governing relay be series at the condenser after
Between the normally-closed contact of electrical equipment and the resistance element.
Preferably, in above-mentioned ac control circuit, the first end of compressor and the normally opened contact of the compressor relay
Connection, the second end ground connection.
Preferably, in above-mentioned ac control circuit, in addition to the air-conditioning switch and the compressor relay are series at
Contact coil between high and low voltage switch, pressure of the high and low voltage switch in the air-conditioning high tension loop is less than default pressure
Power lower limit is disconnected during higher than preset pressure higher limit.
Preferably, in above-mentioned ac control circuit, in addition to protective relay, the normally-closed contact string of the protective relay
It is coupled between the air-conditioning switch and power supply, the first end of the contact coil of the protective relay is connected with power supply, the second end
Ground connection.
Ac control circuit provided by the invention includes condenser circuit and resistance element.Resistance element pushes back in air-conditioning height
Pressure value in road accesses condenser circuit when being not more than preset pressure value, and the pressure in air-conditioning high tension loop is more than default pressure
Condenser circuit is exited during force value.
Using ac control circuit provided by the invention, by setting resistance element, the pressure in air-conditioning system high tension loop
When force value is not more than preset pressure value, resistance element access condenser circuit, the operation of condenser low speed；When driving indoor environment temperature
When spending high, pressure increase in high tension loop, during more than preset pressure value, resistance element cuts out condenser circuit, and condenser is high
Speed operation, and then realize refrigeration.To sum up, condenser fan is typically operated under lower-speed state, when due to environment temperature it is excessively high
When extraneous factor causes the system pressure to raise, condenser fan enters the state that runs at high speed, and system pressure declines, thus may be used therewith
To ensure the relative equilibrium of system pressure.For fixed displacement compressor, above-mentioned control mode is greatly reduced due to frequently opening
Stop compressor and cause compressor to be hit the failure of damage, improve the reliability and comfortableness of system.Meanwhile in condenser
It is less using electric energy when fan low speed is run, the load of vehicle circuitry is reduced, extends making for vehicle generator and battery
Use the cycle.
In order to reach above-mentioned second purpose, present invention also offers a kind of vehicle, the vehicle includes any of the above-described kind of sky
Adjust control circuit.Because above-mentioned ac control circuit has above-mentioned technique effect, there is the vehicle of the ac control circuit
There should be corresponding technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the ac control circuit of a specific embodiment of the invention.
Marked in accompanying drawing as follows：
Protective relay 1, compressor relay 2, compressor 3, condenser relay 4, speed governing relay 5, condenser 6,
Warm wind relay 7, air blower 8, air-conditioning switch 9, resistance element 10, high and low voltage switch 11, Medium voltage switch or circuit breaker 12, thermistor 13.
Embodiment
The embodiment of the invention discloses a kind of ac control circuit, is used with reducing air conditioning energy consumption, extending compressor
Life-span.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the structural representation of the ac control circuit of a specific embodiment of the invention.
In one embodiment, ac control circuit provided by the invention includes condenser circuit and resistance element 10.
Wherein, condenser circuit refers to runs the loop to be freezed in the closure connection condenser 6 of air-conditioning switch 9.It has
Body structure refers to prior art, and here is omitted.Pressure value of the resistance element 10 in air-conditioning high tension loop is no more than pre-
If accessing condenser circuit during pressure value, the pressure in air-conditioning high tension loop exits condenser and returned when being more than preset pressure value
Road.
It should be noted that resistance element 10 refers to by access and cut out to change the size of current in condenser circuit,
So as to adjust the element of the running status of condenser 6, it is specifically as follows the elements such as speed adjusting resistance.Air-conditioning high tension loop refers to air-conditioning system
System coolant high tension loop, its pressure size change with the change of cab environment temperature, are raised in cab environment temperature
When, the pressure in high tension loop accordingly increases.Pressure value namely in air-conditioning high tension loop is not more than preset pressure value
When, resistance element 10 accesses condenser circuit, the operation of the low speed of condenser 6；Pressure value in air-conditioning high tension loop is more than default
During pressure value, resistance element 10 in condenser circuit by cutting out, the high-speed cruising of condenser 6.The big I of specific preset pressure value
It is configured, is not especially limited herein as needed.
Using ac control circuit provided by the invention, by setting resistance element 10, in air-conditioning system high tension loop
When pressure value is not more than preset pressure value, resistance element 10 accesses condenser circuit, the operation of the low speed of condenser 6；When in driver's cabin
When environment temperature is too high, pressure increase in high tension loop, during more than preset pressure value, resistance element 10 cuts out condenser circuit,
The high-speed cruising of condenser 6, and then realize refrigeration.To sum up, the fan of condenser 6 is typically operated under lower-speed state, when due to environment
When the excessively high extraneous factor of temperature causes the system pressure to raise, the fan of condenser 6 enters the state that runs at high speed, and system pressure is therewith
Decline, it is possible thereby to ensure the relative equilibrium of system pressure.For fixed displacement compressor 3, above-mentioned control mode greatly reduces
Cause due to frequent start-stop compressor 3 compressor 3 to be hit the failure of damage, improve the reliability of system and comfortable
Property.Meanwhile when the fan low speed of condenser 6 is run, it is less using electric energy, the load of vehicle circuitry is reduced, extends vehicle
The service life of generator and battery.
Further, condenser relay 4, Medium voltage switch or circuit breaker 12 and condenser relay 4 are connected with condenser circuit
Coil connection is contacted, when being not more than preset pressure value with the pressure value in air-conditioning high tension loop, control condenser relay 4
Coil is contacted to disconnect with power supply, when the pressure in air-conditioning high tension loop is more than preset pressure value, control condenser relay 4
Contact coil and power on；The normally-closed contact of condenser relay 4 disconnects when the contact coil of condenser relay 4 obtains electric
The connection of resistance element 10 and condenser circuit, the contact coil of the normally opened contact of condenser relay 4 in condenser relay 4
Condenser circuit is connected when obtaining electric.Stress control is namely realized by Medium voltage switch or circuit breaker 12, the pressure in air-conditioning high tension loop
When value is not more than preset pressure value, Medium voltage switch or circuit breaker 1 is failure to actuate, that is, is remained open, the contact coil and power supply of condenser relay 4
Disconnect and must not electricity, the normally-closed contact of condenser relay 4 remains closed, and resistance element 10 keeps access condenser circuit, cold
The low speed of condenser 6 is run；When pressure value in air-conditioning high tension loop is more than preset pressure value, Medium voltage switch or circuit breaker 12 closes, condenser
Contact coil and the power on of relay 4 obtain electric, the normally-closed contact disconnection of condenser relay 4, so as to disconnect resistance element
10 with the connection of condenser circuit, the normally opened contact closure of condenser relay 4, connect condenser circuit, that is, resistive member
Part 10 in condenser circuit by cutting out, the high-speed cruising of condenser 6.
Specifically, the first end of the contact coil of condenser relay 4 is connected with power supply, the second end passes through Medium voltage switch or circuit breaker 12
Ground connection；The first end of the normally-closed contact of condenser relay 4, the first end of the normally opened contact of condenser relay 4 with condensation
The second end connection of device 6, the second end ground connection of the normally opened contact of condenser relay 4, the normally-closed contact of condenser relay 4
Second end is grounded by resistance element 10, and the first end of condenser 6 is connected with power supply.
Further, in addition to speed governing relay 5 and compressor relay 2, the contact coil of compressor relay 2 exist
Air-conditioning switch 9 obtains electric when closing, and the normally opened contact of compressor relay 2 connects when the contact coil of compressor relay 2 obtains electric
The contact coil of logical speed governing relay 5；The normally opened contact of speed governing relay 5 connects when the contact coil of speed governing relay 5 obtains electric
Logical resistance element 10 and the connection of condenser circuit.Namely when air-conditioning switch 9 closes, the contact line of compressor relay 2
Enclose electric, its normally opened contact closure, and then the contact coil of speed governing relay 5 obtains electric, its corresponding normally opened contact closure, passes through
The control of Medium voltage switch or circuit breaker 12, with reference to the action of the normally opened contact and normally-closed contact of condenser relay 4, resistance element 10 has selection
Ground accesses or exited condenser circuit.
Specifically, the first end of the normally opened contact of compressor relay 2 is connected with power supply, the second end and speed governing relay 5
Contact coil first end connection；The second end ground connection of the contact coil of speed governing relay 5, the normally opened of speed governing relay 5 touch
Point is series between the normally-closed contact of condenser relay 4 and resistance element 10.Specifically, the normally opened contact of speed governing relay 5
First end is connected with the second end of the normally-closed contact of condenser 6, and the second end is connected with resistance element 10.
Further, the first end of the contact coil of compressor relay 2 is connected with power supply, the second end and controller it is defeated
Go out end connection；The input of controller is connected with the first end of air-conditioning switch 9, and the second end of air-conditioning switch 9 is connected with power supply.Tool
Body, the second end of air-conditioning switch 9 can be connected with the ON shelves of vehicle, when car key is screwed onto ON shelves, then air-conditioning switch 9 with electricity
Connected between source, when access failure air-conditioning switch 9, the contact coil of compressor relay 2 must not electricity, speed governing relay 5 it is normally opened
Contact is disconnected, and condenser 6 is failure to actuate, and air-conditioning is not run.And when connecting air-conditioning switch 9, the contact coil of compressor relay 2
Must be electric, so as to which compressor 3, condenser 6 act, operation of air conditioner.
Further, the first end of compressor 3 is connected with the normally opened contact of compressor relay 2, the second end ground connection.Tool
Body, the first end of compressor 3 can be connected with the second end of the normally opened contact of compressor relay 2, the second end of compressor 3
Ground connection.So that when the contact coil of compressor relay 2 obtains electric, the ON Action of compressor 3, and in compressor relay 2
Contact coil not it is electric when, compressor 3 is failure to actuate.It is of course also possible to by other switching devices control compressor 3 connection with
Disconnect, but it is relative complex to introduce new switching device structure.
In the various embodiments described above, in addition to it is series between air-conditioning switch 9 and the contact coil of compressor relay 2
High and low voltage switch 11, pressure of the high and low voltage switch 11 in air-conditioning high tension loop is less than preset pressure lower limit or higher than default pressure
Disconnected during power higher limit.The presence of high and low voltage switch 11 is to prevent from not adding refrigerant pressure mistake in whole air-conditioning system in loop
Low or system overheat pressure is too high, and irreversible breaking is caused to compressor 3, and when not adding in system, refrigerant or coolant charging amount are insufficient
When, system pressure value is less than preset pressure value lower limit, such as 0.196Mpa, and the low tension switch in high and low voltage switch 11 disconnects, this
When connect air-conditioning switch 9, such as press AC switch, system is without response；When system overheat, the pressure value in pipeline is higher than default pressure
Power higher limit, such as 3.14Mpa, the high-voltage switch gear in high and low voltage switch 11 disconnect, and realize the self-shield of air-conditioning system.Need to illustrate
, when being connected with controller between the contact coil and air-conditioning switch 9 of compressor relay 2, then preferably by high-low pressure
Switch 11 is series between the input of controller and air-conditioning switch 9.
Further, can also include protective relay 1, the normally-closed contact of protective relay 1 be series at air-conditioning switch 9 with
Between power supply, the first end of the contact coil of protective relay 1 is connected with power supply, the second end ground connection.So as to the excessively stream situations such as
Under, the normally-closed contact of protective relay 1 disconnects, and in the case that air-conditioning switch 9 closes, is also remained open with power supply, is to reach
The purpose of blanket insurance shield.
Warm wind relay 7, air blower 8, thermistor 13 and the circuit connection for corresponding to speed adjusting resistance of specific warm wind control
It refer to prior art.
This programme is illustrated with a preferred embodiment below, in a preferred embodiment, referring to Fig. 1, condensation
Condenser relay 4, speed governing relay 5 and compressor relay 2 are connected with device loop.The contact line of condenser relay 4
The first end of circle is connected with power supply, and the second end is grounded by Medium voltage switch or circuit breaker 12；The first of the normally-closed contact of condenser relay 4
End, the first end of normally opened contact of condenser relay 4 are connected with the second end of condenser 6, condenser relay 4 it is normally opened
The second end ground connection of contact, the first end of condenser 6 are connected with power supply.Compressor relay 2 contact coil first end with
Power supply is connected, and the output end of the second end and controller is connected, and the input of controller is connected with air-conditioning switch 9.Compressor relay
The first end of the normally opened contact of device 2 is connected with power supply, and the second end is connected with the first end of the coil of speed governing relay 5；Speed governing relay 5
Contact the second end ground connection of coil, the of the first end of the normally opened contact of speed governing relay 5 and the normally-closed contact of condenser relay 4
Two ends are connected, and the second end is grounded by resistance element 10.The of the first end of compressor 3 and the normally opened contact of compressor relay 2
Two ends connect, the second end ground connection.
When vehicle key is screwed onto ON shelves, and air-conditioning switch 9 is not closed, the contact of condenser relay 4 and speed governing relay 5
Coil not it is electric, therefore condenser 6 is failure to actuate, and air-conditioning system is not run.Air-conditioning switch 9 is now pressed, air-conditioning request signal passes through
The normally-closed contact of protective relay 1, flow through air-conditioning switch 9, high and low voltage switch 11 to controller ECU air-conditionings asks pin pin
Pin20, request obtain it is corresponding after airconditioning control pin pin pin94 output low potentials, the contact coil of compressor relay 2 obtain it is electric,
Normally opened contact is closed, and compressor 3 is started working, while the contact coil of speed governing relay 5 obtains electric, normally opened contact closure, condensation
Device 6 starts low speed operation under the regulation of speed adjusting resistance, and whole air-conditioning system is started working.When cab environment temperature is higher
When, the pressure value rise of refrigeration system mesohigh channel interior, when pressure value is more than 1.77Mpa, Medium voltage switch or circuit breaker 12 closes, cold
The contact coil of condenser relay 4 obtains electric, normally opened contact closure, normally-closed contact disconnection, and circuit releases speed adjusting resistance, condenser 6
It is directly switch into high-speed cruising state, refrigeration is lifted.By this control loop, to realize vehicle double speed condenser fan
The logic control of air-conditioning system.
Above-mentioned ac control circuit structure is relatively simple, facilitates investigation and the maintenance of consequent malfunction, while as few as possible
Used relay, while manufacturing cost is reduced, space has been reserved for the exploitation of the more comprehensive vehicle of follow-up function,
Improve the utilization rate of existing resource.
Based on the ac control circuit provided in above-described embodiment, present invention also offers a kind of vehicle, the vehicle includes
Any one ac control circuit in above-described embodiment.The ac control circuit in above-described embodiment is employed due to the vehicle,
So the beneficial effect of the vehicle refer to above-described embodiment.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of ac control circuit, including condenser circuit；Characterized in that, also include resistance element (10), it is described resistive
Pressure value of the element (10) in air-conditioning high tension loop accesses the condenser circuit when being not more than preset pressure value, in the sky
The condenser circuit is exited when adjusting the pressure in high tension loop to be more than the preset pressure value.
2. ac control circuit according to claim 1, it is characterised in that be connected with condenser in the condenser circuit
Relay (4), Medium voltage switch or circuit breaker (12) connects with the contact coil of the condenser relay (4), to be pushed back in the air-conditioning height
When pressure value in road is not more than preset pressure value, the contact coil and power supply that control the condenser relay (4) disconnect,
When pressure in the air-conditioning high tension loop is more than the preset pressure value, the contact line of the condenser relay (4) is controlled
Circle and power on；The normally-closed contact of the condenser relay (4) obtains electric in the contact coil of the condenser relay (4)
When disconnect the connection of the resistance element (10) and the condenser circuit, the normally opened contact of the condenser relay (4) exists
The contact coil of the condenser relay (4) connects the condenser circuit when obtaining electric.
3. ac control circuit according to claim 2, it is characterised in that also including speed governing relay (5) and compressor
Relay (2), the contact coil of the compressor relay (2) obtain electric, the compressor relay when air-conditioning switch (9) closes
The normally opened contact of device (2) connects connecing for speed governing relay (5) when the contact coil of the compressor relay (2) obtains electric
Lashing ring；The normally opened contact of the speed governing relay (5) connects institute when the contact coil of the speed governing relay (5) obtains electric
State the connection of resistance element (10) and the condenser circuit.
4. ac control circuit according to claim 3, it is characterised in that the contact line of the compressor relay (2)
The first end of circle is connected with power supply, the output end connection of the second end and controller；The input of the controller and the air-conditioning
The first end connection of (9) is switched, the second end of the air-conditioning switch (9) is connected with power supply.
5. ac control circuit according to claim 3, it is characterised in that the normally opened contact of the speed governing relay (5)
It is series between the normally-closed contact and the resistance element (10) of the condenser relay (4).
6. ac control circuit according to claim 3, it is characterised in that the first end of compressor (3) and the compression
The normally opened contact connection of machine relay (2), the second end ground connection.
7. according to the ac control circuit described in claim any one of 3-6, it is characterised in that also include being series at the air-conditioning
Switch the high and low voltage switch (11) between (9) and the contact coil of the compressor relay (2), the high and low voltage switch (11)
Disconnected when pressure in the air-conditioning high tension loop is less than preset pressure lower limit or higher than preset pressure higher limit.
8. ac control circuit according to claim 7, it is characterised in that also including protective relay (1), the protection
The normally-closed contact of relay (1) is series at the air-conditioning switch (9) between power supply, the contact line of the protective relay (1)
The first end of circle is connected with power supply, the second end ground connection.
9. a kind of vehicle, it is characterised in that including the ac control circuit as described in claim any one of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358617.4A CN107379925A (en) | 2017-05-19 | 2017-05-19 | A kind of vehicle and its ac control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358617.4A CN107379925A (en) | 2017-05-19 | 2017-05-19 | A kind of vehicle and its ac control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107379925A true CN107379925A (en) | 2017-11-24 |
Family
ID=60338364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710358617.4A Withdrawn CN107379925A (en) | 2017-05-19 | 2017-05-19 | A kind of vehicle and its ac control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107379925A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2587688Y (en) * | 2002-10-16 | 2003-11-26 | 瑞安市正中电机有限公司 | Speed regulation module for fan of car air conditioner |
| CN104709033A (en) * | 2013-12-16 | 2015-06-17 | 比亚迪股份有限公司 | Hybrid power automobile, air conditioner system of hybrid power automobile, and control method of air conditioner system |
| CN204494714U (en) * | 2015-04-01 | 2015-07-22 | 广东申菱空调设备有限公司 | A kind of condensation air quantity control set for adjusting |
| CN204853852U (en) * | 2015-08-06 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Condensation fan regulation circuit |
| CN106533174A (en) * | 2016-12-29 | 2017-03-22 | 江苏宏微科技股份有限公司 | Dual-circuit chopping-wave and voltage-regulating power electronic module |
-
2017
- 2017-05-19 CN CN201710358617.4A patent/CN107379925A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2587688Y (en) * | 2002-10-16 | 2003-11-26 | 瑞安市正中电机有限公司 | Speed regulation module for fan of car air conditioner |
| CN104709033A (en) * | 2013-12-16 | 2015-06-17 | 比亚迪股份有限公司 | Hybrid power automobile, air conditioner system of hybrid power automobile, and control method of air conditioner system |
| CN204494714U (en) * | 2015-04-01 | 2015-07-22 | 广东申菱空调设备有限公司 | A kind of condensation air quantity control set for adjusting |
| CN204853852U (en) * | 2015-08-06 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Condensation fan regulation circuit |
| CN106533174A (en) * | 2016-12-29 | 2017-03-22 | 江苏宏微科技股份有限公司 | Dual-circuit chopping-wave and voltage-regulating power electronic module |
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Application publication date: 20171124 |
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