CN202931244U - Locomotive cab air conditioner power supply device - Google Patents
Locomotive cab air conditioner power supply device Download PDFInfo
- Publication number
- CN202931244U CN202931244U CN 201220631529 CN201220631529U CN202931244U CN 202931244 U CN202931244 U CN 202931244U CN 201220631529 CN201220631529 CN 201220631529 CN 201220631529 U CN201220631529 U CN 201220631529U CN 202931244 U CN202931244 U CN 202931244U
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- Prior art keywords
- power supply
- air conditioner
- motor
- generator
- locomotive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a locomotive cab air conditioner power supply device. A DC motor and an AC generator are in a coaxial connection. A locomotive DC 110V control power supply can be used for the power supply of the DC motor. The AC generator can be used for the power supply of the air conditioner. A microcomputer control device can be used to adjust the exciting current of the motor and the exciting current of the generator. The frequency as well as the voltage can be adjusted, therefore the frequency conversion starting and the frequency conversion speed regulation of an AC asynchronous motor in the air conditioner device can be realized. The locomotive cab air conditioner power supply device has advantages of strong overload capability, strong high temperature resistance capability, overvoltage impact resistance capability, low failure rate, and high reliability.
Description
Technical field
The utility model belongs to the railway locomotive technical field, relates in particular to a kind of locomotive cab air conditioner power source device.
Background technology
For improving driver's condition of work, at drivers' cab, aircondition is set, need provide three-phase 50Hz380V AC power to the asynchronous motor in aircondition.And the control system power supply of locomotive is direct current 110V, can't be directly to the aircondition power supply, and in order to address this problem, general way is that a cover special inverter is installed, and direct current is converted to three-phase alternating current, powers to aircondition.Direct current 110V electricity on diesel locomotive is sent by diesel-driven auxiliary generator, and because the load of diesel engine speed and auxiliary generator is all changing at any time, so scope range of the fluctuation of voltage is larger; Higher pulse voltage can occur when the disjunction of locomotive control circuit contactor, make the quality of locomotive direct current 110V power supply also bad; The locomotive cab ambient temperature is higher, car door and vehicle window often open and close, aircondition frequent starting, the rush of current of asynchronous motor when starting, not only endanger the electronic devices and components in inverter, and cab signal and control system are produced serious electromagnetic interference; The power supply of aircondition is the three-phase alternating current that is provided by inverter, is the sinusoidal pulse width modulation ripple, and harmonic content is higher, during motor operation loss high, caloric value is large.The inverter of locomotive air conditioning device must adapt to than wide-voltage range in sum, has stronger overload capacity, must possess vibration resistance, anti-electromagnetic interference and security reliability.The locomotive air conditioner inverter adopts high-power electronic device at present, and circuit is controlled complicated, and is not only expensive, and quality is unstable, particularly easily breaks down when hot environment is worked.
The utility model content
The purpose of this utility model overcomes the deficiency of above-mentioned prior art exactly, provides that a kind of overload capacity is strong, heat-resisting ability is strong, anti-overvoltage impact, failure rate is low, locomotive cab air conditioner power source device that reliability is high.
The purpose of this utility model is achieved in that a kind of locomotive cab air conditioner power source device, comprises by DC motor, alternating current generator and computer control device, it is characterized in that:
DC motor and the coaxial connection of alternating current generator;
DC motor is controlled Power supply by locomotive direct current 110V;
Alternating current generator is powered to air conditioner;
The exciting current of computer control device regulating electric machine and generator.
Adopt scheme of the present utility model, the exciting current of regulating electric machine and generator, control rotating speed and the generator output voltage of motor, the three-phase alternating current that generating set is sent, but not only regulating frequency but also adjustable voltage, thereby AC asynchronous motor in aircondition is carried out variable frequency starting and frequency control, make common locomotive air conditioning device, become convertible frequency air-conditioner.
Description of drawings
Fig. 1 is the locomotive cab air conditioner power source device circuit principle schematic of the utility model embodiment.
Mark in figure: AVFR-computer control device, DZ-automatic circuit breaker, GEN-synchronous generator, FB-frequency changer, M-DC motor, TS-indoor temperature transmitter, YB-voltage changer.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the locomotive cab air conditioner power source device of the utility model embodiment with the coaxial connection mutually of DC motor and alternating current generator, forms generating set, by the motor driven generator rotary electrification, for locomotive air conditioning device provides power supply.Motor is controlled Power supply by locomotive direct current 110V, takes the separate excitation mode, regulates the size of exciting current, can change motor speed, namely controls the output frequency of generator; The exciting current of regulator generator can be controlled generator output voltage.The excitation of computer control device AVFR regulating electric machine and generator, change output frequency and the voltage of generator, satisfy alternating current motor variable frequency starting and the frequency control requirement of aircondition, make motor both have larger detent torque, the rotation of drive compression machine, again can regulating electric machine rotating speed, make common locomotive air conditioning device, become convertible frequency air-conditioner.
Voltage changer YB and frequency changer FB are set, and voltage and frequency signal that generating set is exported are input to computer control device AVFR.Computer control device according to the temperature value of setting, is regulated respectively the exciting current of DC motor M and alternating current generator GEN according to the actual speed of signal and the air-conditioning unit of indoor temperature transmitter TS, changes generator output voltage and frequency.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (1)
1. a locomotive cab air conditioner power source device, comprise by DC motor, alternating current generator and computer control device, it is characterized in that:
DC motor and the coaxial connection of alternating current generator;
DC motor is controlled Power supply by locomotive direct current 110V;
Alternating current generator is powered to air conditioner;
The exciting current of computer control device regulating electric machine and generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631529 CN202931244U (en) | 2012-11-26 | 2012-11-26 | Locomotive cab air conditioner power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631529 CN202931244U (en) | 2012-11-26 | 2012-11-26 | Locomotive cab air conditioner power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931244U true CN202931244U (en) | 2013-05-08 |
Family
ID=48221154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631529 Expired - Fee Related CN202931244U (en) | 2012-11-26 | 2012-11-26 | Locomotive cab air conditioner power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931244U (en) |
-
2012
- 2012-11-26 CN CN 201220631529 patent/CN202931244U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20161126 |