CN1292210C - Frequency conversion energy saving air conditioner in environmental protection for motor coach - Google Patents
Frequency conversion energy saving air conditioner in environmental protection for motor coach Download PDFInfo
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- CN1292210C CN1292210C CNB2005100315267A CN200510031526A CN1292210C CN 1292210 C CN1292210 C CN 1292210C CN B2005100315267 A CNB2005100315267 A CN B2005100315267A CN 200510031526 A CN200510031526 A CN 200510031526A CN 1292210 C CN1292210 C CN 1292210C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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Abstract
The present invention relates to an automobile air conditioning, particularly to a bus self electric generating driving frequency conversion air conditioner. The upper part of a carriage of the present invention is provided with a top air conditioning unit, the inner part of which is provided with an evaporator, an evaporating fan, a condenser, a condensing fan, a compressor, etc., and the inner part of the carriage is also provided with an electric control system. The present invention is characterized in that the compressor is an integral seal scroll compressor driven by an electric source, and a power supply used by the air conditioning unit is supplied by a special secondary field synchronous alternator driven by an automobile engine. The air conditioning unit uses an integral unit type and comprises two set of independent refrigeration systems, the electric control system controls the secondary field synchronous alternator, a rectifier filter, a transducer and a top air conditioner actuating device through a control box assembly comprising a PLC, programs of each link action are written in a programmable controller of the PLC, and the self-adaptation control for the system is carried out by coordinating action according to commands. The present invention has the advantages of energy saving, environmental protection, simple pipe installation, long motor service life, stable refrigeration effect and simple installation.
Description
Technical field
The present invention relates to air conditioning for automobiles, refer in particular to the moving convertible frequency air-conditioner of fax of motor bus self power generation.
Background technology
At present, the automotive coach air-conditioning technical that uses is to prolong the mature technology of promoting with for many years, in enormous quantities, but still have the following disadvantages and shortcoming at aspects such as refrigeration, the passive type compressor of air conditioner adopts sustainer to drive, be in passive state, its discharge capacity and refrigerating capacity change with the variation of engine speed, poor refrigerating efficiency during idling, be about 50% of specified refrigerating capacity, in addition lower; Active air-conditioning makes the relative passive type air-conditioning of noise increase 5～10 decibels owing to will use special-purpose diesel engine as auxiliary power.Simultaneously, diesel engine can not quit work when temperature arrives design temperature or defrosting, can only dally or light running, and oil consumption increases a lot; The air-conditioning refrigeration system pipeline connects types of attachment such as the O of employing type circles, horn mouth, flange more, seals not goodly, is easy to generate seepage; Compressor volume form is a piston type, and its volumetric efficiency is relatively poor, is about 70%～80%.Belong to opened compressor in the sealing, the axle envelope of use is leaned on the oil film seal of sealing surface, easy to leak, and the life-span is roughly 8 years, compares few 2 years with scroll compressor; The power supply of condensation fan, evaporation fan is DC24V, and blower motor is easy to wear because of the high carbon brush of rotating speed, and bearing is fragile, and the life-span is short, safeguards frequent.
Summary of the invention
The objective of the invention is to be improved at shortcoming that exists in the background technology and problem, provide a kind of energy by machinery, electric flux conversion, exchange the conversion of---direct current---AC power, and the coordination of temperature and frequency control, and the replacement environmental-protection refrigeration working medium of using international community to advocate, and the utilization efficient scroll compressor, can reach the frequency conversion energy saving air conditioner in environmental protection for motor coach of environmental protection, energy-conservation, balance refrigeration resultant effect.
Technical scheme of the present invention is: be provided with the top-mounted air conditioner unit on railway carriage top, be provided with evaporimeter in the top-mounted air conditioner, evaporation fan, condenser, condensation fan, compressor, also be provided with electric control system in the railway carriage, it is characterized in that described compressor is a power drives integrally closed scroll compressor, the power supply that the air-conditioning unit uses is to be provided by the special-purpose secondary excitation synchronous alternator that automobile engine drives, the air-conditioning unit adopts the integral unit formula, comprise that two overlap independently refrigeration system, described electric control system is by the control cabinet assembly control secondary excitation synchronous generator that comprises Programmable Logic Controller (PLC), rectifier filter, frequency converter, top-mounted air conditioner device executing agency, each link operation program writes in the Programmable Logic Controller (PLC), by the instructions coordinate action system is carried out Self Adaptive Control.
The present invention has following advantage:
1, energy-conservation: novel compressor of air conditioner adopts the integrally closed scroll compressor, and the volumetric efficiency height reduces input power.When vehicle interior temperature reached the setting value of air-conditioning, air-conditioning system was carried out Self Adaptive Control, conserve energy.By contrast examination, new type compressor utilizes converter technique to give full play to the energy saving space than old-fashioned energy conservation of compressor 23%, always energy-conservationly reaches 35%.The loss of deduction generator, motor is energy-conservation to reach 15%.
2, environmental protection: the R407C working medium of use is the mixture that belongs to three kinds of working medium that comprise R134a, atmospheric ozone layer is not destroyed, simultaneously because R134a content has only 52%, greenhouse effects are little with respect to pure R134a, belong to Green Product truly, the refrigerating effect per unit swept volume that adds R407C working medium is bigger by 30% than R134a, and is so R407C lacks than R134a under same refrigerating capacity needs, very big to the environmental protection contribution.
3, air conditioner refrigerating is the integral unit formula partly, and line arrangement is simple, and tie point is welding, and the leakage that having avoided is threaded causes because compressor is fully closed, does not have the natural leak that compressor shaft gland connects yet.
4, the power supply of evaporation fan and condensation fan is a three-phase alternating-current supply, motor is non-carbonate, rotating speed is low, non-maintaining, the life-span is long.
5, compressor is the totally enclosed type vortex machine that contracts, and rotating speed, discharge capacity, refrigerating capacity are constant, not influenced by the rotating speed of motor bus sustainer, and refrigeration is stable.
6, install simply, cancelled two connecting pipes, in the process of installing, do not need pressurize and filling working medium, reduced, improved reliability of products owing to the quality problems such as leakage that the reason appearance is installed from top-mounted air conditioner to compressor bank.
Description of drawings
Fig. 1 is a top-mounted air conditioner unit front view of the present invention
Fig. 2 is Fig. 1 vertical view
Fig. 3 is a schematic diagram of refrigerating of the present invention
Fig. 4 is a generator special installation diagram of the present invention
Fig. 5 is Fig. 4 right view
Fig. 6 is generator principle figure
Fig. 7 is an electric control system functional-block diagram of the present invention
Fig. 8 is the electric control system electrical schematic diagram
Fig. 9 is the frequency converter electrical schematic diagram
Among Fig. 8: the SIV frequency converter, the PW24V power module of voltage regulation of working, the PLC Programmable Logic Controller, KM11, KM12 compressor contactor, the A.C. contactor of KM13 control condensation fan, the A.C. contactor of KM14 control evaporation fan, FR13 condensation fan electrothermal relay, FR14 evaporation fan electrothermal relay, each motor air switch of QF1, QF2 power module, ZA1 dc source contactor, KA1 compressor bank 1, the magnetic valve auxiliary reclay, KA2 compressor 2, magnetic valve auxiliary reclay, KA3 is ZA1 Contactor Starting auxiliary reclay, HL1 is the fault display lamp, and JQZ is a generator exciter, the ZL rectifier filter.
Among Fig. 9: V1 is soft connection module, and V3-V5 is the IGBT inverted power module, the T1-T3 current sensor, the direct high voltage connector of KM1, the Z1-Z2 out put reactor, the L1 filter inductance, M1-M6 cooling fan control printed panel divides interface board, power driving device and PC plate, X1 is the display interface device end on the interface board, X3 is working power ± 24V interface, and 303 start line end, 304 fault line ends, C1 is a filter capacitor, and R2 is a bleeder resistance.
The specific embodiment
By Fig. 2,6,7 as can be known, the present invention is provided with the top-mounted air conditioner unit on railway carriage top, be provided with evaporimeter in the top-mounted air conditioner, evaporation fan, condenser, condensation fan, compressor, also be provided with electric control system in the railway carriage, it is characterized in that described compressor is a power drives integrally closed scroll compressor 1, the power supply that the air-conditioning unit uses is to be provided by the special-purpose secondary excitation synchronous alternator that automobile engine drives, the air-conditioning unit adopts the integral unit formula, comprise that two overlap independently refrigeration system, described electric control system is by the control cabinet assembly control secondary excitation synchronous generator that comprises Programmable Logic Controller PLC, rectifier filter, frequency converter, top-mounted air conditioner device executing agency, each link operation program writes in the Programmable Logic Controller PLC, by the instructions coordinate action system is carried out Self Adaptive Control.
Integral unit formula air-conditioning unit of the present invention is, divide three zones with the install an air-conditioner frame of assembly of passenger vehicle top, regional both sides, a left side are symmetrical arranged evaporation fan 12 respectively, the middle part is symmetrical arranged evaporimeter 2, right regional bilateral symmetry is provided with condenser 3, condensation fan 13 is located at the centre of two condensers 3 side by side, the zone line middle part is symmetrical arranged scroll compressor 1, both sides are provided with liquid reservoir 8, described each several part connects into two covering devices with pipeline and auxiliary, whole frame is closed with vehicle with cap seal and is formed integral body, the power supply that the air-conditioning assembly uses is to drive the generating of secondary exciting generator after behind the rectifying and wave-filtering, send the inverter frequency conversion to import electrical equipment control assembly and air-conditioning assembly again and form the feedback interaction after Programmable Logic Controller PLC machine is controlled and control by automobile engine.Be connected with pipeline between described evaporimeter and the liquid reservoir, pipeline is provided with auxiliary expansion valve 4, magnetic valve 5, device for drying and filtering 6, liquid-sighting glass 7, also is connected to defrosting temperature controller 11 on the evaporimeter, and another pipeline of evaporimeter connects compressor and low tension switch 9.Described condenser 3-road pipeline connects compressor 1, and is provided with high-voltage switch gear 10 and check valve 14 in pipeline, and another road pipeline connects liquid reservoir 8.
The present invention adopts two stage bodies long-pending little, render a service high screw compressor, each is with a cover evaporimeter and respectively put a cover condenser, the working medium of using is R407C, can not produce the environmental protection working medium of destroying to atmospheric ozone layer, the working medium of whole system is all worked in the roof assembly, the cold air that produces is sent in the railway carriage by evaporation fan, so just saved under the car to the trouble of roof with the long tube transferring working medium, the employed power source of vehicle top air conditioner assembly be from automobile engine other with bel-drivenn from exciting generator, the electric current that is sent is a three-phase alternating current, after rectification, send the inverter frequency conversion to send in the control cabinet again, input vehicle top air conditioner assembly after the control of Programmable Logic Controller PLC machine, the generating parameter of every technical parameter of roof assembly and generator all feeds back in the interior Programmable Logic Controller PLC machine of control cabinet comprehensive, makes whole air-conditioning system carry out the most effective work running according to Programmable Logic Controller PLC instructions.Operation principle of the present invention: as shown in Figure 3, the refrigerant vapor of coming out by low tension switch 9 from evaporimeter 2 is inhaled into the compressor 1, compressed machine compression forms high-temperature steam, enter condenser 3 through blast pipe check valve 14, the steam of HTHP is cooled into and is highly pressurised liquid in condenser, the heat that discharges during condensation is discharged in the atmosphere by condensation fan 13, high-pressure liquid working medium is through liquid reservoir 8, liquid-sighting glass 7, device for drying and filtering 6, magnetic valve 5, expansion valve 4 is back to evaporimeter 2, cold-producing medium absorbs the air heat in the air conditioner surroundings and gasifies in evaporimeter, the surrounding air that is cooled is sent in the railway carriage by evaporation fan 12, thereby reach the refrigeration purpose, because the connection of compressor running, the boil-off gas that sucks constantly circulates, and has so just produced the continuous cooling effect, two covers about this device divides, the installment work principle is the same, everything all by Programmable Logic Controller PLC machine control in the electrical equipment control box assembly, need not labor management, the automaticity height.
As shown in Figure 4, special-purpose secondary excitation synchronous alternator of the present invention comprises main generator, exciter, rectifier 81, wherein main generator comprises generator unit stator 31 and generator amature 41, exciter comprises exciter stator 61 and exciter rotor 71, generator unit stator 31 and exciter stator 61 are arranged on circular motor housing 51 inwalls, and generator amature 41 and exciter rotor 71 are arranged in the same rotating shaft 101.Described generator unit stator 31 is made of iron core and coil, and rotor 41 constitutes the rotating excitation armature by iron core and coil, is provided with rotary gap between the two; Described exciter stator 61 is formed excitation field one time by iron core and coil, and exciter rotor 71 is formed secondary excitation magnetic field by iron core and coil, is provided with rotary gap between the two.
The assembly technology of generator special of the present invention: generator is by shell 51, front and rear cover 104,102, front and back bearings 91 and bearing cap 103,107 form generator frame, generator unit stator 31 iron cores and coil and excitation field iron core and coil are installed on the shell 51, generator outlet box 105 also is located at shell 51 1 sides, rotating exciter generator amature 41 iron cores and coil are installed in the rotating shaft 101, secondary excitation field core and coil and rotating rectifier 81, the whole generating machine is fixed on by under-chassis on the shell 106 by the automobile engine, and transmission is by the belt pulley driven rotary.Principle of the present invention: as shown in Figure 3, give coil logical controlled current flow in exciter field excitatory in stator side, induce in the exciter armature exchange electromotive force and become direct current through the rectifier of coaxial rotation after, directly feed the main rotor field coil, engine one rotating generator stator just can electromotive power output like this.Because generator field coil, exciter armature and rotating rectifier all are mounted on the same axle, there is not relative motion between them, whole motor is from stator excitation, again from the stator power output, saved electric brush slip ring fully, by the excitatory adjuster of closed loop that is subjected to the control of Programmable Logic Controller PLC machine of static installation, can regulate the exciting current size automatically, thereby stablize generator output voltage.Brushless excitation generator is actually by two motors to be formed, because the exciting current of regulating, that is to say after exciting current amplifies rectification through exciter and give main frame magnetic field again, it will make exciter power reduce greatly, and the needed element volume of the automatic regulator energized circuit convenient electronic circuit that descends is greatly controlled automatically.
As shown in Figure 7, enabling signal is connected to Programmable Logic Controller PLC instruction excitation closed-loop system by guidance panel and provides exciting current to generator in the electric control system of the present invention, generator output AC voltage R, S, T be to rectifier filter, and by behind the rectifying and wave-filtering DC voltage being connected to frequency converter; Voltage U after inversion, the frequency conversion, V, W are connected to gauge tap again and make the A.C. contactor action, and voltage is connected to top-mounted air conditioner device refrigeration again; Excitation detects link as detecting the generator voltage fluctuation, both sends into revised exciting current by the excitation closed-loop system to generator, makes generator send stable voltage; The executing agency of top-mounted air conditioner device is unusual as occurring, and its abnormal signal is connected to holding circuit and sends halt instruction by Programmable Logic Controller PLC again.
A.C. contactor in the control cabinet assembly of the present invention comprises the A.C. contactor 1KM11 that controls compressor, A.C. contactor 2 KM12 of control compressor, A.C. contactor 4 KM14 of A.C. contactor 3 KM13 of control condensation fan, control evaporation fan, power supply air switch 1 QF1, power supply air switch 2 QF2, control magnetic valve auxiliary reclay 1 KA1, auxiliary reclay 2 KA2, whole working power 24V, Voltage stabilizing module insulating power supply ± 24V.
Excitation closed-loop system of the present invention and excitation detect the module that link is made up of integrated circuit, resistance, electric capacity.
Holding circuit of the present invention is by compressor exhaust temperature protector 1 FT12, compressor exhaust temperature protector 2 FT14; pressure-head switch 1 FP11, pressure-head switch 2 FP13, defrosting temperature protector 1 FT15, defrosting temperature protector 2 FT16 form.
As shown in Figure 8, power turn-on air switch 1 QF1, power supply air switch 2 QF2, D.C. contactor ZA1 closure, frequency converter SIV and 24V work power module of voltage regulation PW get electrically programmable controller PLC and enter preparation routine, generator also enters preparation routine under the engine rotation situation, turn gauge tap SA1-R08 ventilation blower enters running program, this moment, excitation device entered excitatory state, generator will send three-phase alternating current, after rectifier rectification filtering, send into frequency converter SIV and carry out the frequency conversion preparation by the dc power contactor, No. 609 control lines of Programmable Logic Controller PLC Programmable Logic Controller this moment are promptly sent into frequency conversion instruction KM14 and are subjected to Programmable Logic Controller PLC instruction closed, frequency converter promptly produces the upwards voltage of raising frequency gradually of 0 frequency, make compressor, ventilation blower upwards carries out soft start from 0 frequency, when frequency reaches 50HZ, just finished weak cold refrigeration link during voltage 380V.As long as will to control that master cock beats to R10 shelves KM12 be that the closed compressor identical time magnetic valve that will turn round is opened for No. two if enter strong cold pattern, working medium promptly enters No. two compressor starts and forces cold pattern.Shutdown mode is that master cock SA1 beats to shutdown, and promptly all motors compressor that quits work has and just all stops refrigeration work the duration of runs of the automatic vacuum of 8 seconds kind.
As shown in Figure 9, after the voltage 510V-750V direct current of adjusting inserts X1:1 * 1:2 ± 24V power connection, directly high voltage connector KM1 hits and closes the L102-L103 closed path in power resistor R1 enters circuit board NBQ, whole frequency converter is in to be prepared the frequency conversion stage, when control cabinet is sent the enabling signal 609 of coming to and is entered 303 the end of a thread, it is the frequency converter ingoing power frequency conversion stage, the conducting of frequency converter V1 controllable silicon begin from 0 frequently progressively frequency and voltage boosting exchange three-phase output until reaching 50HZ380V, its output is delivered to out put reactor Z1-Z2 and is delivered to control cabinet.When the voltage that sends when generator is lower than setting valve, the frequency converter PC detects that setting valve is low will to send control instruction, the control trigger reduces frequency conversion frequency and output AC voltage, PC instruction triggers device frequency stabilization when input direct voltage is higher than setting valve, voltage stabilizing pattern work limit is exported at frequency 50HZ380V voltage.When machine intimate breaks down, will send one group of signal of telecommunication 304 to control cabinet, control cabinet is quit work.Every data of the very complete output of display port 2 functions all can be presented on the display, wherein have input voltage, output current, electric voltage frequency, temperature, fault to show power KW number etc.A stopping signal de-interfaced 303 line ends get final product, and that is to say that control cabinet do not send 609 signals, and frequency converter promptly quits work to enter and treats starting state.
The operation principle of circuit of the present invention: 4 contactors, the closed loop energized circuit and the generator commutation circuit ZL of 3 auxiliary reclays and generator, the circuit signal trend is that control panel SA1 sends the operation start instruction, Programmable Logic Controller PLC promptly instructs closed loop field regulator BHLZTJQ to send exciting current by inductance L Z+LZ-to generator in the case, generator drives backspin at the automobile sustainer and transfers three-phase alternating voltage S, R, T, behind rectifier filter ZL rectifying and wave-filtering, send into frequency converter by D.C. contactor ZA, under the PC instruction, become three casees adjustable AC powers of a frequency accidental and send into control cabinet again, each contactor auxiliary reclay action is distributed to each compressor with three-phase alternating voltage under the instruction of Programmable Logic Controller PLC, evaporation fan, condensation fan, the control magnetic valve, open magnetic valve, so just finished whole startup process of refrigerastion and in railway carriage, carried cold air.Top-mounted air conditioner divides right-hand man's device just the same, if weak cold link Programmable Logic Controller PLC machine is used on one side following of control panel control, strong cold finger order just all runnings of each actuating motor of right-hand man down, if fluctuation appears in engine speed, three casees alternating voltages of generator output can be followed fluctuation, the DC voltage of rectifier output also can fluctuate, excitation detection link promptly can detect the DC voltage and the comparative voltage of fluctuation and compare, relatively the back energized circuit promptly can be sent revised excitation voltage, make generator revise the voltage that sends immediately and be maintained to setting valve, if generator does not also reach the voltage of adjusting, then frequency converter can change frequency and output voltage, and each actuating motor is worked under safety frequency and voltage.Be provided with high-voltage switch gear, low tension switch, defrost switch in the overhead, arbitrary switch exceeds setting valve and is about to signal and sends in the control cabinet, and Programmable Logic Controller PLC instruction stop is also lighted signal lamp and reported to the police.The defrost switch exceeds its signal of telecommunication of setting valve, and to send into Programmable Logic Controller PLC be that the instruction compression machine stops and to treat Auto Power On after the defrost.When the instruction compression machine is started shooting, frequency converter is until the 50HZ380V voltage of adjusting from the zero frequency starting, the starting current of effectively having controlled each motor, when generator does not reach setting valve because of rotating speed is too low, frequency converter reduces frequency and voltage, make the operation of each motor safety, if when generator exceeds setting valve, frequency converter frequency-and voltage-stabilizing under the PC instruction is operated in 50HZ380V.
Claims (10)
1, a kind of frequency conversion energy saving air conditioner in environmental protection for motor coach, be provided with the top-mounted air conditioner unit on railway carriage top, be provided with evaporimeter in the top-mounted air conditioner, evaporation fan, condenser, condensation fan, compressor, also be provided with electric control system in the railway carriage, it is characterized in that described compressor is a power drives integrally closed scroll compressor (1), the power supply that the air-conditioning unit uses is to be provided by the special-purpose secondary excitation synchronous alternator that automobile engine drives, the air-conditioning unit adopts the integral unit formula, comprise that two overlap independently refrigeration system, described electric control system is by the control cabinet assembly control secondary excitation synchronous generator that comprises Programmable Logic Controller (PLC), rectifier filter, frequency converter, top-mounted air conditioner device executing agency, each link operation program writes in the Programmable Logic Controller (PLC), by the instructions coordinate action system is carried out Self Adaptive Control.
2, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 1, it is characterized in that described integral unit formula air-conditioning unit is, divide three zones with the install an air-conditioner frame of assembly of passenger vehicle top, regional both sides, a left side are symmetrical arranged evaporation fan (12) respectively, the middle part is symmetrical arranged evaporimeter (2), right regional bilateral symmetry is provided with condenser (3), condensation fan (13) is located at the centre of two condensers (3) side by side, the zone line middle part is symmetrical arranged scroll compressor (1), both sides are provided with liquid reservoir (8), described each several part connects into two covering devices with pipeline and auxiliary, whole frame is closed with vehicle with cap seal and is formed integral body, the power supply that the air-conditioning assembly uses is to drive the generating of secondary exciting generator after behind the rectifying and wave-filtering, send the inverter frequency conversion to import electrical equipment control assembly and air-conditioning assembly again and form the feedback interaction after Programmable Logic Controller (PLC) machine is controlled and control by automobile engine.
3, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 2, it is characterized in that being connected with pipeline between described evaporimeter and the liquid reservoir, pipeline is provided with auxiliary expansion valve (4), magnetic valve (5), device for drying and filtering (6), liquid-sighting glass (7), also be connected to defrosting temperature controller (11) on the evaporimeter, another pipeline of evaporimeter connects compressor and low tension switch (9).
4, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 2, it is characterized in that described condenser (3) one road pipelines connect compressor (1), and in pipeline, being provided with high-voltage switch gear (10) and check valve (14), another road pipeline connects liquid reservoir (8).
5, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 1, it is characterized in that described special-purpose secondary excitation synchronous alternator comprises main generator, exciter, rectifier (81), wherein main generator comprises generator unit stator (31) and generator amature (41), exciter comprises exciter stator (61) and exciter rotor (71), generator unit stator (31) and exciter stator (61) are arranged on circular motor housing (51) inwall, and generator amature (41) and exciter rotor (71) are arranged in the same rotating shaft (101).
6, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 5 is characterized in that described generator unit stator (31) is made of iron core and coil, and rotor (41) constitutes the rotating excitation armature by iron core and coil, is provided with rotary gap between the two; Described exciter stator (61) is formed excitation field one time by iron core and coil, and exciter rotor (71) is formed secondary excitation magnetic field by iron core and coil, is provided with rotary gap between the two.
7, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 1, it is characterized in that in the described electric control system that enabling signal is connected to Programmable Logic Controller (PLC) instruction excitation closed-loop system by guidance panel and provides exciting current to generator, generator output AC voltage (R, S, T) is to rectifier filter, and by behind the rectifying and wave-filtering DC voltage being connected to frequency converter; Voltage after inversion, the frequency conversion (U, V, W) is connected to gauge tap again and makes the A.C. contactor action, and voltage is connected to top-mounted air conditioner device refrigeration again; Excitation detects link as detecting the generator voltage fluctuation, both sends into revised exciting current by the excitation closed-loop system to generator, makes generator send stable voltage; The executing agency of top-mounted air conditioner device is unusual as occurring, and its abnormal signal is connected to holding circuit and sends halt instruction by Programmable Logic Controller PLC again.
8, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 7, it is characterized in that the A.C. contactor in the described control cabinet assembly comprises the A.C. contactor 1 (KM11) of controlling compressor, the A.C. contactor 2 (KM12) of control compressor, the A.C. contactor 3 (KM13) of control condensation fan, the A.C. contactor 4 (KM14) of control evaporation fan, power supply air switch 1 (QF1), power supply air switch 2 (QF2), control magnetic valve auxiliary reclay 1 (KA1), auxiliary reclay 2 (KA2), whole working power 24V, Voltage stabilizing module insulating power supply ± 24V.
9, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 7 is characterized in that described excitation closed-loop system and excitation detect the module that link is made up of integrated circuit, resistance, electric capacity.
10, frequency conversion energy saving air conditioner in environmental protection for motor coach according to claim 7; it is characterized in that described holding circuit is by compressor exhaust temperature protector 1 (FT12), compressor exhaust temperature protector 2 (FT14); pressure-head switch 1 (FP11), pressure-head switch 2 (FP13), defrosting temperature protector 1 (FT15), defrosting temperature protector 2 (FT16) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100315267A CN1292210C (en) | 2005-05-12 | 2005-05-12 | Frequency conversion energy saving air conditioner in environmental protection for motor coach |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100315267A CN1292210C (en) | 2005-05-12 | 2005-05-12 | Frequency conversion energy saving air conditioner in environmental protection for motor coach |
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| CN1687659A CN1687659A (en) | 2005-10-26 |
| CN1292210C true CN1292210C (en) | 2006-12-27 |
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| CNB2005100315267A Active CN1292210C (en) | 2005-05-12 | 2005-05-12 | Frequency conversion energy saving air conditioner in environmental protection for motor coach |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095226A (en) * | 2011-02-24 | 2011-06-15 | 湖南华强电气有限公司 | Top-mounted on-vehicle air-conditioning system |
| CN102570941B (en) * | 2012-01-13 | 2014-05-14 | 天津伟力盛世节能科技股份有限公司 | Special high-voltage frequency converter for changing frequency and adjusting speed of high-voltage synchronous motor |
| CN103075773B (en) * | 2013-01-06 | 2015-03-18 | 上海普圣压缩机有限公司 | Integrated vehicle/vessel air conditioner |
| CN104579068B (en) * | 2015-01-05 | 2017-04-12 | 远大能源利用管理有限公司 | Method and system for improving loading capacity of generator unit |
| CN109664862A (en) * | 2018-12-14 | 2019-04-23 | 河南理工大学 | A kind of vehicle window distributed temperature measuring intelligent defrosting system based on A7139 wireless transmission |
| CN109747383A (en) * | 2019-01-29 | 2019-05-14 | 上海金鹏科技有限公司 | Cooling heating and power generation system and its method |
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2005
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