CN107020914A - The blower fan control system and air-conditioning of a kind of air-conditioning - Google Patents
The blower fan control system and air-conditioning of a kind of air-conditioning Download PDFInfo
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- CN107020914A CN107020914A CN201710212920.3A CN201710212920A CN107020914A CN 107020914 A CN107020914 A CN 107020914A CN 201710212920 A CN201710212920 A CN 201710212920A CN 107020914 A CN107020914 A CN 107020914A
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- fan
- blower fan
- driver
- main control
- control module
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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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00371—Air-conditioning arrangements specially adapted for particular vehicles for vehicles carrying large numbers of passengers, e.g. buses
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/0065—Control members, e.g. levers or knobs
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating 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
- B60R16/033—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 characterised by the use of electrical cells or batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of blower fan control system of air-conditioning and air-conditioning, the system includes：Fan driver, power accumulator and DC/DC converters；Wherein, fan driver, setting is adapted to blower fan, for driving fan operation；Power accumulator, setting is adapted to fan driver, for when voltage needed for blower fan is identical with the supply voltage of power accumulator, being powered by blower fan of supply voltage；Or, DC/DC converters, are adapted to setting with fan driver successively with power accumulator respectively, for when voltage needed for blower fan is differed with supply voltage, by supply voltage be transformed to voltage identical voltage of transformation needed for blower fan, and powered by blower fan of voltage of transformation.The solution of the present invention, can overcome in the prior art that electromagnetic interference is big, poor reliability and the low defect of efficiency, realize the beneficial effect of small electromagnetic interference, good reliability and efficiency high.
Description
Technical field
The invention belongs to air-conditioning technical field, and in particular to the blower fan control system and air-conditioning of a kind of air-conditioning, more particularly to
A kind of bus convertible frequency air-conditioner blower fan control system and the bus convertible frequency air-conditioner with the system.
Background technology
Usually, automobile air conditioning system blower fan drive system, including：Driver and blower fan.Wherein, between driver and blower fan
The wire of connection is long, and the voltage signal on wire is the switching signal of a upper frequency, causes whole condenser chamber
Body and evaporator cavity have all been covered with such signal (i.e. high-frequency voltage signal and high current signal), and EMI is poor, and security is poor.
Because near-field coupling, the intensity of far-field radiation and common mode current, differential-mode current size are all proportional, by this part connecting line
The near-field coupling and far-field radiation of generation can all produce larger interference to whole blower fan system, and (that is this blower fan drives
The interference that system is produced is big), reliability is poor.
In addition, driver uses the electric current on low voltage power supply, wire big, larger di/dt can be produced (i.e. on inverter
The change of electric current in unit interval), resulting electromagnetic interference can influence the working condition of whole drive system, while in wind
Copper loss on electromechanical machine is relatively large, whole blower fan it is less efficient.
In the prior art, there is big electromagnetic interference, poor reliability and the low defect of efficiency.
The content of the invention
It is an object of the present invention to for drawbacks described above there is provided a kind of blower fan control system of air-conditioning and air-conditioning, to solve
Driver causes the problem of whole fan efficiency is low using low-voltage power supply in the prior art, reaches the effect of lifting fan efficiency.
The present invention provides a kind of blower fan control system of air-conditioning, including：Fan driver, power accumulator and DC/DC become
Parallel operation；Wherein, the fan driver, setting is adapted to the blower fan, for driving the fan operation；The power electric power storage
Pond, setting is adapted to the fan driver, the supply voltage for voltage and the power accumulator needed for the blower fan
When identical, powered by the blower fan of the supply voltage；Or, the DC/DC converters, respectively with the power accumulator
Setting is adapted to with the fan driver successively, for when voltage needed for the blower fan and the supply voltage are differed,
By the supply voltage be transformed to voltage identical voltage of transformation needed for the blower fan, and using the voltage of transformation as the wind
Machine is powered.
Alternatively, the quantity of the blower fan is more than one, the quantity of the quantity of the fan driver and the blower fan
Adaptation；The fan driver, adaptation is arranged at the motor preset length of the blower fan.
Alternatively, in addition to：Main control module；The main control module, stores with the fan driver and the power respectively
Battery adaptation is set, for controlling the fan driver, and using the supply voltage as power supply；When the system includes
During switching switch, the main control module is also set with the switching mating switch, described for controlling the switching switch to carry out
Switching.
Alternatively, in addition to：Compressor and pipe-line system；When the system include main control module when, the compressor and
Pipe-line system is adapted to setting with the main control module, for carrying out air adjustment under the control of the main control module.
Alternatively, the main control module, including：Master controller；When the system includes compressor and pipe-line system, institute
Stating main control module also includes：Compressor drive；Wherein, the master controller, respectively with the fan driver and the pressure
Contracting machine driver adaptation is set；The compressor drive, setting is adapted to the compressor and pipe-line system.
Alternatively, in addition to：Power accumulator DC buses；When the system includes main control module, the power electric power storage
Pond DC buses, adaptation is arranged at the power accumulator and the fan driver, the DC/DC converters, the master control mould
Between at least one of block.
Alternatively, wherein, the blower fan, including：At least one of condensation fan, evaporation fan；It is adapted to the blower fan,
The fan driver, including：At least one of condensation fan driver, evaporation fan driver.
Alternatively, it is adapted to the blower fan and the fan driver, in addition to：Evaporator cavity, condenser cavity
At least one；Wherein, the condensation fan and the condensation fan driver, adaptation are arranged in the condenser cavity；Institute
Evaporation fan and the evaporation fan driver are stated, adaptation is arranged in the evaporator cavity.
Alternatively, the quantity and arrangement mode of the evaporator cavity and/or the condenser cavity, can be according to user
Demand and/or the affiliated space size adaptation of the system are set.
Alternatively, in addition to：Communication module；When the system includes main control module, the communication module, with the master
Control module adaptation to set, for receiving the control information to the fan driver that default client is sent；And/or, will
The state of the fan operation is sent to the client；
The fan driver, is additionally operable to be based on the control information, drives the fan operation.
Alternatively, in addition to：Alarm module；When the system includes main control module, the main control module is additionally operable to prison
Survey the running status of at least one of the power accumulator, the DC/DC converters, the blower fan；Wherein, the operation shape
State, including：At least one of normally run, be stopped with failure；The alarm module, is adapted to the main control module and sets
Put, under the control of the main control module, warning message to be sent when the running status is the failure.
Alternatively, in addition to：Display module；The display module, becomes with the power accumulator, the DC/DC respectively
At least one of parallel operation and the blower fan adaptation are set, for the supply voltage, the voltage of transformation, the fan operation
At least one of state shown.
Match with said apparatus, further aspect of the present invention provides a kind of air-conditioning draught fan, including：Above-described air-conditioning
Blower fan control system.
The solution of the present invention, is powered by power accumulator, and the blower fan to needing to press in using, and is converted using DC/DC
Power accumulator is transformed to middle pressure by device, and then utilizes the electric current on middle high-pressure fan system power supply, reduction wire, can be with
The big caused interference problem of current in wire in traditional automobile air conditioning system evaporator cavity and condenser chamber body is effectively solved, while may be used also
Effectively to lift the efficiency of blower fan system.
Further, the solution of the present invention, middle pressure is reduced the voltage to by power accumulator and by DC/DC converters,
Consider in terms of cost and efficiency two, can effectively reduce the stress levels of the driver of blower fan, and then can further drop
Low cost.
Thus, the solution of the present invention, is powered by power accumulator, and the blower fan to needing to press in using, using DC/DC
Power accumulator is transformed to middle pressure by converter, and then utilizes middle high-pressure fan system power supply, reduces the electric current on wire,
Solve driver in the prior art causes the problem of whole fan efficiency is low using low-voltage power supply, so that, overcome in the prior art
Electromagnetic interference is big, poor reliability and the low defect of efficiency, realizes the beneficial effect of small electromagnetic interference, good reliability and efficiency high.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the blower fan control system of the air-conditioning of the present invention；
Fig. 2 for the present invention air-conditioning blower fan control system (for example：Bus convertible frequency air-conditioner blower fan control system) it is another
The structural representation of embodiment；
Fig. 3 for the present invention air-conditioning blower fan control system (for example：Bus convertible frequency air-conditioner blower fan control system) it is another
The structural representation of embodiment；
Fig. 4 is the structural representation of an embodiment of the system blower driver of the present invention.
With reference to accompanying drawing, reference is as follows in the embodiment of the present invention：
1- evaporator cavitys；11- evaporation fans；12- evaporation fan drivers；2- condenser cavitys；21- condensation fans；
22- condensation fan drivers；3- compressors and pipe-line system；4- power accumulators；5- power accumulator DC buses；6- master controls and
Compressor drive；7-DC/DC converters.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
There is provided the system of a kind of blower fan control system of air-conditioning, the as shown in Figure 1 present invention for embodiments in accordance with the present invention
An embodiment structural representation.The blower fan control system of the air-conditioning can include：Fan driver, the and of power accumulator 4
DC/DC converters 7.
Alternatively, the fan driver, setting is adapted to the blower fan, can be used for driving the fan operation.
Alternatively, the power accumulator 4, setting is adapted to the fan driver, can be used for working as the blower fan institute
When needing voltage identical with the supply voltage of the power accumulator 4, powered by the blower fan of the supply voltage.
For example：Power accumulator is (for example：Power accumulator 4) for whole system (for example：The air-blower control system of whole air-conditioning
System) power supply, belong to high-pressure system.
For example：Power accumulator 4, can be for evaporation fan 11, condensation fan 21, master control (for example：Master control and compressor drive
Dynamic device 6) power supply.
For example：Because blower fan uses middle high-pressure motor, the motor magnetic linkage of design is far above low voltage motor, according to blower fan
Power outputUnderstand, it is same to reach on the premise of motor number of pole-pairs and electromechanics frequency are constant
Power output, motor magnetic linkage is increased, then electric current is far below low voltage motor.
Wherein, p is motor number of pole-pairs, ψsFor motor magnetic linkage, isFor current of electric, Ω is electromechanics frequency.
Meanwhile, the loss of electric machine includes winding copper loss PCu, core loss PFe, mechanical loss PfωWith stray loss Ps.Wherein,
Winding copper loss PCu=3is 2R, R are winding resistance, to square being directly proportional for current of electric.So, when the current decreases, motor copper
Consumption decreases, and the efficiency of motor is improved, while interference is also small much caused by electric current.
For example：Blower fan is directly powered using power accumulator, electric current very little on wire, disturbs smaller, electric efficiency is relative
It is higher.
For example：Blower fan is directly powered using power accumulator, eliminates DC_DC modules (for example：DC/DC converters 7), wind
Engine efficiency improves 5% or so.
For example：Electric current on blower fan wire reduces, and reduction is carried due to the near-field coupling produced on blower fan line and far field coupling
The reliability of high whole blower fan system, and by reducing di/dt, improve the Electro Magnetic Compatibility of whole drive system.
For example：It is mainly high direct voltage signal and low current signal in example shown in Figure 2, its cavity, EMI is good,
Without DC/DC converters so that the fan efficiency of the blower fan control system of the air-conditioning is highly improved.
For example：The blower fan control system of the air-conditioning, during using high voltage supply mode, then without DC/DC converters 7.
For example：The blower fan control system of the air-conditioning is directly powered with power accumulator, needs not move through DC/DC converters, together
When blower motor electric current significantly reduce, can be with cost-effective while improving energy efficiency；Can solve driver because in
The wire length of blower fan and resulting electromagnetic interference can influence whole driving device working status so that air-conditioning system it is reliable
Property enhancing, the stability of air-conditioning system can also be lifted.
It can be seen that, example shown in Figure 2, power accumulator 4 except to module (for example：Master control and compressor drive
6) power outer, also the blower fan and driver in evaporator and condenser cavity are powered, what is connected between blower fan and driver leads
Line is very short, and the influence of its high-frequency switching signal is smaller, and the wire in cavity is mainly power accumulator DC buses, DC electric current very little,
To the interference very little of the blower fan control system of the air-conditioning；Due to the electric current very little of monomer blower fan, so the efficiency of blower fan is higher；Should
The blower fan control system of the air-conditioning needs not move through DC/DC converters, reduces loss, has saved cost.
Alternatively, the DC/DC converters 7, respectively with the power accumulator 4 successively with being fitted with the fan driver
With setting, it can be used for, when voltage needed for the blower fan is differed with the supply voltage, the supply voltage being transformed to
With voltage identical voltage of transformation needed for the blower fan, and powered by the blower fan of the voltage of transformation.
For example：Example shown in Figure 3, the blower fan control system of the air-conditioning can include：Master control is (for example：Master control and
Compressor drive 6), blower fan drives (for example：Evaporation fan driver 12 and condensation fan driver 22), blower motor (example
Such as：The motor of evaporation fan 11 and the motor of condensation fan 21), DC-DC module is (for example：DC/DC converters 7).
For example：May refer to control mode as shown in Figure 4, voltage through DC-DC module (for example：DC/DC converters 7) rise
After pressure there is provided to evaporation (condensation) driver (for example：Evaporation fan driver 12 and condensation fan driver 22), control evaporation
(condensation) blower fan is (for example：Evaporation fan 11 and condensation fan 21).
For example：By DC/DC by power accumulator voltage transformation to middle pressure, while electric current is small on wire is ensured, also
Fan driver cost can further be reduced.
Wherein, medium voltage network, can include：400 volts of electrokinetic cell will be above (for example by DC/DC converters：Power
Battery 4) voltage transformation is the voltage between 300 volts to 400 volts, the power supply for evaporation fan 11 and condensation fan 21.
For example：If using medium-pressure electricity supply mode, needing to press in exporting by DC/DC converters 7, its scope can be
Between 300 volts~400 volts, Drive Module is reduced (for example：Evaporation fan driver 12 and condensation fan driver 22)
Pressure voltage (only 600 volts of modules and 1200 volts of modules in industry), can select pressure-resistant relatively low module, so as to further save
Cost.
Wherein, power accumulator be whole system (for example：The blower fan control system of the whole air-conditioning, or even whole air-conditioning
System) power supply, therefore the selection of power supply needs the power demands of each component of comprehensive consideration whole system, it is impossible to only consider
Blower fan, therefore be necessary using medium-pressure electricity supply mode through DC/DC converters 7.
Thus, by using middle high-pressure blower fan, and adaptation power supply is carried out using power accumulator and DC/DC converters, can
So that the electric current by wire is greatly reduced, fan efficiency, interference caused by reduction high current are lifted.
In an optional example, the quantity of the blower fan is more than one, the quantity of the fan driver with it is described
The quantity adaptation of blower fan.
For example：Driving plate number is corresponded with blower fan number.
Alternatively, the fan driver, adaptation is arranged at the motor preset length of the blower fan.
For example：Driving plate is arranged near blower fan, it is to be ensured that connection motor is (for example：The motor being adapted to blower fan) lead
Line is short as far as possible, influence of the reduction high-frequency voltage signal to blower fan system.
For example：Evaporation fan driver is (for example：Evaporation fan driver 12) and condensation fan driver is (for example：Condensation
Fan driver 22) input termination power (for example：Power accumulator 4), evaporation fan driver is (for example：Evaporation fan drives
Dynamic device 12) output termination evaporation fan (for example：Evaporation fan 11) motor, condensation fan driver is (for example：Condensation fan
Driver 22) output termination condensation fan (for example：Condensation fan 21) motor.
Thus, individually controlled by the fan driver being adapted to blower fan, and the motor and fan driver of blower fan
The distance between be setting value, electromagnetic interference is small, and control reliability is high.
In an optional example, the blower fan can include：At least one of condensation fan 21, evaporation fan 11.
Alternatively, it is adapted to the blower fan, the fan driver can include：Condensation fan driver 22, evaporation wind
At least one of machine driver 12.
For example：Evaporate (condensation) device cavity (for example：Evaporator cavity 1 and condenser cavity 2) in have it is some evaporation it is (cold
It is solidifying) blower fan is (for example：Evaporation fan 11 and condensation fan 21) and driving plate is (for example：Evaporation fan driver 12 and condensation fan
Driver 22).
Thus, driven by the condensation fan driver and evaporation fan that are adapted to respectively with condensation fan and evaporation fan
Device, and condensation fan driver is separately provided with evaporation fan driver, can be lifted to condensation fan and evaporation fan control
Reliability and accuracy.
In an optional example, it is adapted to, can also includes with the blower fan and the fan driver：Evaporator cavity
1st, at least one of condenser cavity 2.
Alternatively, the condensation fan 21 and the condensation fan driver 22, adaptation are arranged at the condenser cavity 2
In.
Alternatively, the evaporation fan 11 and the evaporation fan driver 12, adaptation are arranged at the evaporator cavity 1
In.
For example：A kind of bus convertible frequency air-conditioner blower fan control system, can include：Evaporator cavity is (for example：Evaporator cavity
1), evaporation fan is (for example：Evaporation fan 11), condenser cavity (for example：Condenser cavity 2), condensation fan (for example：Condensation
Blower fan 21), driver (for example：Evaporation fan driver 12 and condensation fan driver 22), battery (for example：Power accumulator
4), power accumulator DC buses are (for example：Power accumulator DC buses 5) and main control module is (for example：Master control and compressor drive
Dynamic device 6) etc..
Thus, by by condensation fan and condensation fan driver, evaporation fan and evaporation fan driver individually
Be arranged in corresponding cavity so that condensation fan and evaporation fan are individually controlled, be disturbed it is small, be conducive to lifted blower fan
Reliability of operation.
In an optional example, the quantity and arrangement mode of the evaporator cavity 1 and/or the condenser cavity 2,
It can be set according to user's request and/or the affiliated space size adaptation of the system.
For example：Referring to the example shown in Fig. 2 and Fig. 3, the quantity of the evaporator cavity 1 is two, the condenser chamber
The quantity of body 2 is one, two evaporator cavitys 1 be adapted to the left and right sides that is distributed in condenser cavity 2 or
Both sides up and down.
Thus, the arrangement mode of evaporator cavity and condenser cavity is set by being adapted to, it is possible to achieve more comfortably, more may be used
By ground air adjustment, hommization and flexibility can be greatly improved.
For example：It can also include：Switching switch.
For example：The switching switch, drives with the power accumulator 4, the DC/DC converters 7 and the blower fan respectively
Dynamic device adaptation is set, and can be used for when being powered using the supply voltage as the blower fan, switching over makes the power electric power storage
Pond 4 is adapted to setting with the fan driver；Or when being powered using the voltage of transformation as the blower fan, switch over described in making
DC/DC converters 7 are adapted to setting with the power accumulator 4 and the fan driver respectively.
For example：This two independent systems (system of i.e. alone power accumulator, and simultaneously with power accumulator and
The system of DC/DC converters), it is considered to during high energy efficiency, it is not necessary to DC/DC converters, its driver and blower fan will be changed to high pressure
's；In order to ability cost-effective use DC/DC converters, while driver and blower fan will be changed to middle pressure.
Thus, switched by switching, can automatically switch power supply, control mode is easy, reliability is high.
In an optional embodiment, it can also include：Main control module.
Alternatively, the main control module, is adapted to setting with the fan driver and the power accumulator 4 respectively, can
For controlling the fan driver, and using the supply voltage as power supply.
Alternatively, when the system can include switching switch when, the main control module also with the switching mating switch
Set, can be used for controlling the switching switch to carry out the switching.
Thus, by main control module, fan driver can be controlled, realization is automatically controlled, and reliability is higher, control effect
More preferably.
In an optional embodiment, it can also include：Compressor and pipe-line system 3.
Alternatively, when the system can include main control module, the compressor and pipe-line system 3 and the master control mould
Block adaptation is set, and can be used for carrying out air adjustment under the control of the main control module.
Thus, set by the adaptation of compressor and pipe-line system, the control effect of air-conditioning system can be lifted, lifting is used
Experience at family.
In an optional embodiment, the main control module can include：Master controller.
Alternatively, when the system can include compressor and pipe-line system 3, the main control module can also include：
Compressor drive is (for example：Master control and compressor drive 6).
Wherein, the master controller, is adapted to setting with the fan driver and the compressor drive respectively.It is described
Compressor drive, setting is adapted to the compressor and pipe-line system 3.
For example：The blower fan control system of the air-conditioning, all blower fans are independently controlled with air-conditioner control system, Ke Yiti
The efficiency of lift-off adjusting system.
Thus, by master controller, blower fan and compressor can be controlled respectively, control reliability is high, and makes blower fan and sky
Adjusting system isolated operation, property easy to use and flexibility can be lifted.
In an optional embodiment, it can also include：Power accumulator DC (i.e. direct current) bus 5.
Alternatively, when the system can include main control module, the power accumulator DC buses 5, adaptation is arranged at
Between at least one of the power accumulator 4 and the fan driver, the DC/DC converters, the main control module.
Thus, adaptation connection is carried out by power accumulator bus, connection reliability is high, and interference and be lost it is small, favorably
In lifting power supply reliability.
In an optional embodiment, it can also include：Communication module.
Alternatively, when the system can include main control module, the communication module is adapted to the main control module and set
Put, can be used for receiving the control information to the fan driver that default client is sent；And/or, by the blower fan
The state of operation is sent to the client.
Alternatively, the fan driver, can be also used for being based on the control information, drives the fan operation.
Thus, by communication module, it can to realize man-machine interaction between main control module and client so that control is more
Plus hommization, Consumer's Experience is more preferably.
In an optional embodiment, it can also include：Alarm module.
Alternatively, when the system can include main control module, the main control module can be also used for monitoring described dynamic
The running status of at least one of power battery 4, the DC/DC converters 7, the blower fan.
Wherein, the running status, can include：At least one of normally run, be stopped with failure.
Alternatively, the alarm module, setting is adapted to the main control module, can be used for the control in the main control module
Under system, warning message is sent when the running status is the failure.
Thus, by alarm module, failure message can be reported and submitted in time, and then points out staff to safeguard in time, favorably
In the reliability and the stability of operation of prompting control.
In an optional embodiment, it can also include：Display module.
Alternatively, the display module, respectively with the power accumulator 4, the DC/DC converters 7 and the blower fan
At least one of adaptation set, can be used for the supply voltage, the voltage of transformation, the state of the fan operation extremely
It is one of few to be shown.
Thus, by display module, can intuitively display control information, hommization is good, and reliability is high.
Through substantial amounts of verification experimental verification, using the technical scheme of the present embodiment, pass through the side of middle high-pressure fan system power supply
Formula, reduces the electric current on wire, can effectively solve wire electricity in traditional automobile air conditioning system evaporator cavity and condenser chamber body
Interference problem caused by stream is big, while the efficiency of blower fan system can also be lifted effectively.
Embodiments in accordance with the present invention, additionally provide a kind of air-conditioning of the blower fan control system corresponding to air-conditioning.The air-conditioning
It can include：The blower fan control system of above-described air-conditioning.
Alternatively, the air-conditioning, can include：Bus convertible frequency air-conditioner.
In one embodiment, the blower fan control system of the air-conditioning is (for example：A kind of automobile air conditioning system blower fan drive system),
It can include：Plural platform evaporation fan, plural platform condensation fan and control circuit.Wherein, control circuit is arranged on automobile air conditioning system
In the electric control chamber of system, control circuit includes：Evaporation fan driver and condensation fan driver；Evaporation fan driver and cold
The input termination power of solidifying fan driver, the motor of the output termination evaporation fan of evaporation fan driver, condensation fan drives
The motor of the output termination condensation fan of dynamic device.It is this to be effectively reduced the manufacturing cost of automobile air conditioning system blower fan drive system
And maintenance cost.But this blower fan drive system interference is big, and poor reliability is less efficient.
In an optional embodiment, example shown in Figure 2, the blower fan control system of the air-conditioning is (for example：It is a kind of
Bus convertible frequency air-conditioner blower fan control system), it can include：Evaporator cavity is (for example：Evaporator cavity 1), evaporation fan (example
Such as：Evaporation fan 11), condenser cavity (for example：Condenser cavity 2), condensation fan (for example：Condensation fan 21), driver
(for example：Evaporation fan driver 12 and condensation fan driver 22), battery (for example：Power accumulator 4), power accumulator DC
Bus is (for example：Power accumulator DC buses 5) and main control module is (for example：Master control and compressor drive 6) etc..
Alternatively, power accumulator 4, can be for evaporation fan 11, condensation fan 21, master control (for example：Master control and compressor
Driver 6) power supply, evaporation (condensation) device cavity is (for example：Evaporator cavity 1 and condenser cavity 2) in have it is some evaporation it is (cold
It is solidifying) blower fan is (for example：Evaporation fan 11 and condensation fan 21) and driving plate is (for example：Evaporation fan driver 12 and condensation fan
Driver 22), and driving plate number and blower fan number one-to-one corresponding, driving plate is installed near blower fan, it is to be ensured that connection electricity
Machine is (for example：The motor being adapted to blower fan) wire is short as far as possible, influence of the reduction high-frequency voltage signal to blower fan system.
For example：The motor, can be permagnetic synchronous motor.
For example：The blower fan can be the both direction blowing in bearing, during the installation blower fan, can make blower fan and axle
Hold and be mounted in parallel.
Wherein, power accumulator is (for example：Power accumulator 4) for whole system (for example：The air-blower control system of whole air-conditioning
System) power supply, belong to high-pressure system.
Alternatively, evaporation fan driver is (for example：Evaporation fan driver 12) and condensation fan driver is (for example：It is cold
Solidifying fan driver 22) input termination power (for example：Power accumulator 4), evaporation fan driver is (for example：Evaporation fan
Driver 12) output termination evaporation fan (for example：Evaporation fan 11) motor, condensation fan driver is (for example：Condensating wind
Machine driver 22) output termination condensation fan (for example：Condensation fan 21) motor.
In an optional specific example, because blower fan uses middle high-pressure motor, the motor magnetic linkage of design is far above low pressure
Motor, according to the power output of blower fanUnderstand, in motor number of pole-pairs and the constant premise of electromechanics frequency
Under, the same power output to reach, motor magnetic linkage is increased, then electric current is far below low voltage motor.
Wherein, p is motor number of pole-pairs, ψsFor motor magnetic linkage, isFor current of electric, Ω is electromechanics frequency.
Meanwhile, the loss of electric machine includes winding copper loss PCu, core loss PFe, mechanical loss PfωWith stray loss Ps.Wherein,
Winding copper loss PCu=3is 2R, R are winding resistance, to square being directly proportional for current of electric.So, when the current decreases, motor copper
Consumption decreases, and the efficiency of motor is improved, while interference is also small much caused by electric current.
For example：Blower fan is directly powered using power accumulator, electric current very little on wire, disturbs smaller, electric efficiency is relative
It is higher.
For example：Blower fan is directly powered using power accumulator, eliminates DC_DC modules (for example：DC/DC converters 7), wind
Engine efficiency improves 5% or so.
For example：Electric current on blower fan wire reduces, and reduction is carried due to the near-field coupling produced on blower fan line and far field coupling
The reliability of high whole blower fan system, and by reducing di/dt, improve the Electro Magnetic Compatibility of whole drive system.
It can be seen that, example shown in Figure 2, its cavity interior mainly high direct voltage signal and low current signal, EMI is good,
Without DC/DC converters so that the fan efficiency of the blower fan control system of the air-conditioning is highly improved.
That is, the blower fan control system of the air-conditioning is directly powered with power accumulator, DC/DC conversion is needed not move through
Device, while the electric current of blower motor significantly reduces, can be with cost-effective while improving energy efficiency；Driver can be solved
Because of the wire length in blower fan, resulting electromagnetic interference can influence whole driving device working status so that air-conditioning system
Reliability strengthens, and can also lift the stability of air-conditioning system.
Thus, example shown in Figure 2, power accumulator 4 except to module (for example：Master control and compressor drive
6) power outer, also the blower fan and driver in evaporator and condenser cavity are powered, what is connected between blower fan and driver leads
Line is very short, and the influence of its high-frequency switching signal is smaller, and the wire in cavity is mainly power accumulator DC buses, DC electric current very little,
To the interference very little of the blower fan control system of the air-conditioning；Due to the electric current very little of monomer blower fan, so the efficiency of blower fan is higher；Should
The blower fan control system of the air-conditioning needs not move through DC/DC converters, reduces loss, has saved cost.
In an optional example, example shown in Figure 3, the blower fan control system of the air-conditioning can include：Master control
(for example：Master control and compressor drive 6), blower fan drives (for example：Evaporation fan driver 12 and condensation fan driver 22),
Blower motor is (for example：The motor of evaporation fan 11 and the motor of condensation fan 21), DC-DC module is (for example：DC/DC converters
7)。
It is alternatively possible to referring to control mode as shown in Figure 4, voltage through DC-DC module (for example：DC/DC converters 7)
After boosting there is provided to evaporation (condensation) driver (for example：Evaporation fan driver 12 and condensation fan driver 22), control is steamed
Send out (condensation) blower fan (for example：Evaporation fan 11 and condensation fan 21).
For example：By DC/DC by power accumulator voltage transformation to middle pressure, while electric current is small on wire is ensured, also
Fan driver cost can further be reduced.
Wherein, medium voltage network, can include：400 volts of electrokinetic cell will be above (for example by DC/DC converters：Power
Battery 4) voltage transformation is the voltage between 300 volts to 400 volts, the power supply for evaporation fan 11 and condensation fan 21.
It can be seen that, by using middle high-pressure blower fan, the electric current by wire can be greatly reduced, fan efficiency, reduction is lifted
Disturbed caused by high current.
In an optional example, the blower fan control system of the air-conditioning, during using high voltage supply mode, then without DC/DC
Converter 7.If using medium-pressure electricity supply mode, need by DC/DC converters 7 export in press, its scope can 300 volts~
Between 400 volts, Drive Module is reduced (for example：Evaporation fan driver 12 and condensation fan driver 22) pressure voltage
(only 600 volts of modules and 1200 volts of modules in industry), can select pressure-resistant relatively low module, so that further cost-effective.
For example：In general the power supply of power accumulator is all high pressure, when considering cost-effective, is just used
High pressure is become middle pressure by DC/DC converters, and pressure is used for driving corresponding Middle pressure draught fan in this.
Wherein, power accumulator be whole system (for example：The blower fan control system of the whole air-conditioning, or even whole air-conditioning
System) power supply, therefore the selection of power supply needs the power demands of each component of comprehensive consideration whole system, it is impossible to only consider
Blower fan, therefore be necessary using medium-pressure electricity supply mode through DC/DC converters 7.
In an optional example, the blower fan control system of the air-conditioning, all blower fans carry out only with air-conditioner control system
Vertical control, can lift the efficiency of air-conditioning system.
For example：Because each blower fan is adapted to single fan driver so that the blower fan control system of on-board air conditioner with
Air-conditioner control system can be controlled with relatively independent, and then can individually control blower fan and/or individually control sky according to demand
Adjust, be conducive to being lifted the efficiency of on-board air conditioner.
The processing and function realized by the air-conditioning draught fan of the present embodiment essentially correspond to earlier figures 1 to shown in Fig. 4
Embodiment, principle and the example of device, therefore not detailed part in the description of the present embodiment, may refer to the phase in previous embodiment
Speak on somebody's behalf bright, will not be described here.
Through substantial amounts of verification experimental verification, using technical scheme, converted by power accumulator and by DC/DC
Device reduces the voltage to middle pressure, considers in terms of cost and efficiency two, can effectively reduce blower fan driver it is pressure-resistant etc.
Level, and then can further reduce cost.
To sum up, it will be readily appreciated by those skilled in the art that on the premise of not conflicting, above-mentioned each advantageous manner can be certainly
Combined, be superimposed by ground.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (13)
1. a kind of blower fan control system of air-conditioning, it is characterised in that including：Fan driver, power accumulator (4) and DC/DC
Converter (7)；Wherein,
The fan driver, setting is adapted to the blower fan, for driving the fan operation；
The power accumulator (4), setting is adapted to the fan driver, is moved for the voltage needed for the blower fan with described
When the supply voltage of power battery (4) is identical, powered by the blower fan of the supply voltage；Or,
The DC/DC converters (7), are adapted to setting with the fan driver successively with the power accumulator (4) respectively,
For when voltage needed for the blower fan is differed with the supply voltage, the supply voltage to be transformed to and the blower fan institute
Voltage identical voltage of transformation is needed, and is powered by the blower fan of the voltage of transformation.
2. system according to claim 1, it is characterised in that the quantity of the blower fan is more than one, and the blower fan drives
The quantity of dynamic device is adapted to the quantity of the blower fan；
The fan driver, adaptation is arranged at the motor preset length of the blower fan.
3. system according to claim 1 or 2, it is characterised in that also include：Main control module；
The main control module, is adapted to setting with the fan driver and the power accumulator (4) respectively, described for controlling
Fan driver, and using the supply voltage as power supply；
When the system includes switching switch, the main control module is also set with the switching mating switch, for controlling
State switching switch and carry out the switching.
4. the system according to one of claim 1-3, it is characterised in that also include：Compressor and pipe-line system (3)；
When the system includes main control module, the compressor and pipe-line system (3) are adapted to setting with the main control module, use
In carrying out air adjustment under the control in the main control module.
5. the system according to claim 3 or 4, it is characterised in that the main control module, including：Master controller；
When the system includes compressor and pipe-line system (3), the main control module also includes：Compressor drive；
Wherein,
The master controller, is adapted to setting with the fan driver and the compressor drive respectively；
The compressor drive, setting is adapted to the compressor and pipe-line system (3).
6. the system according to one of claim 1-5, it is characterised in that also include：Power accumulator DC buses (5)；
When the system includes main control module, the power accumulator DC buses (5), adaptation is arranged at the power accumulator
(4) between at least one of the fan driver, the DC/DC converters, the main control module.
7. the system according to one of claim 1-6, it is characterised in that wherein,
The blower fan, including：At least one of condensation fan (21), evaporation fan (11)；
It is adapted to the blower fan, the fan driver, including：Condensation fan driver (22), evaporation fan driver (12)
At least one of.
8. system according to claim 7, it is characterised in that be adapted to, also wrap with the blower fan and the fan driver
Include：At least one of evaporator cavity (1), condenser cavity (2)；Wherein,
The condensation fan (21) and the condensation fan driver (22), adaptation are arranged in the condenser cavity (2)；
The evaporation fan (11) and the evaporation fan driver (12), adaptation are arranged in the evaporator cavity (1).
9. system according to claim 8, it is characterised in that the evaporator cavity (1) and/or the condenser cavity
(2) quantity and arrangement mode, can be set according to user's request and/or the affiliated space size adaptation of the system.
10. the system according to one of claim 1-9, it is characterised in that also include：Communication module；
When the system includes main control module, the communication module is adapted to setting with the main control module, default for receiving
Client send the control information to the fan driver；And/or, the state of the fan operation is sent to described
Client；
The fan driver, is additionally operable to be based on the control information, drives the fan operation.
11. the system according to one of claim 1-10, it is characterised in that also include：Alarm module；
When the system includes main control module, the main control module is additionally operable to monitor the power accumulator (4), the DC/
The running status of at least one of DC converters (7), the blower fan；Wherein, the running status, including：Normal operation, stopping
At least one of work and failure；
The alarm module, setting is adapted to the main control module, under the control of the main control module, when the operation
State sends warning message when being the failure.
12. the system according to one of claim 1-11, it is characterised in that also include：Display module；
The display module, respectively with the power accumulator (4), the DC/DC converters (7) and the blower fan at least it
One adaptation is set, for being shown at least one of the supply voltage, the voltage of transformation, the state of the fan operation
Show.
13. a kind of air-conditioning, it is characterised in that including：The blower fan control system of air-conditioning as described in claim 1-12 is any.
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| CN107020914B (en) | 2019-04-30 |
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