CN2560518Y - Variable frequency controller for variable frequency air conditioner for locomotive - Google Patents
Variable frequency controller for variable frequency air conditioner for locomotive Download PDFInfo
- Publication number
- CN2560518Y CN2560518Y CN 01254459 CN01254459U CN2560518Y CN 2560518 Y CN2560518 Y CN 2560518Y CN 01254459 CN01254459 CN 01254459 CN 01254459 U CN01254459 U CN 01254459U CN 2560518 Y CN2560518 Y CN 2560518Y
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- China
- Prior art keywords
- variable frequency
- locomotive
- air conditioner
- frequency
- control
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Abstract
A special variable frequency controller for variable frequency air conditioner for locomotive belongs to the technical field of power electron. The task of the variable frequency controller for variable frequency air conditioner is to provide a variable frequency controller for variable frequency air conditioner for locomotive with the advantages of simple structure, low cost and advanced technology, and the controller can integrate the functions of driven control, automatic temperature adjustment and protection of a variable frequency compressor. A control circuit consists of an SCM MB89P857 which has the special function of variable frequency control. Various control functions of the variable frequency air conditioner for locomotive are realized through self-programmed application software. The shape of the product is a control box and the dimensions of length, width and height are 360 multiplied by 250 multiplied by 520 (mm). The utility model is structurally characterized in that a bottom plate assembled by the original parts is arranged in the control box. A panel of a box gate is provided with relevant control devices. The product structure is steel plate structure which is formed by welding and riveting.
Description
Technical field
It is the specialized equipment of locomotive convertible frequency air-conditioner device variable frequency control that the utility model relates to the special-purpose frequency-variable controller of locomotive convertible frequency air-conditioner, belongs to electric and electronic technical field.By to the drive controlling function of frequency-changeable compressor and electric current, temperature protection function, realize automatically regulating to the locomotive driving room temperature.
Background technology
Air-conditioning is used at the train position of train already, and the locomotive at chaufeur place does not have air conditioner facility, at present, in order to improve engine driver's working environment, installs locomotive air conditioner additional.Locomotive air conditioner belongs to the air-conditioning of extraordinary type, and its working environment is very abominable, has characteristics such as vibrations are big, temperature is high, power supply capacity is little.Though can adopt equipment such as frequency-changeable compressor, universal frequency converter, air-conditioner controller to realize the control of locomotive convertible frequency air-conditioner, equipment is many, volume is big, is unfavorable for the installation of locomotive finite space, also can make entire equipment complicated.Therefore the special-purpose frequency-variable controller of locomotive convertible frequency air-conditioner produces for addressing this problem.
Summary of the invention
At present, the locomotive air conditioner device is to adopt invariable frequency compressor basically, has the impact of electric current when therefore starting, and influences power supply, other consumer of remote effect; In addition, carrying out temperature when control, compressor is in open and close and replaces transformation condition, and not only the temperature controller performance is poor for this, and high frequent opens, stops, and influences compressor service life.Rush of current when starting in order to solve also has the soft start that adopts universal frequency converter to realize compressor, but can not realize variable frequency control.
The task of the special-purpose frequency-variable controller of locomotive convertible frequency air-conditioner provide a kind of simple in structure, cost is low, the special-purpose frequency-variable controller of the locomotive convertible frequency air-conditioner of advanced technology, drive controlling, automatic temperature control and the defencive function of frequency-changeable compressor can be integrated in one.
The special-purpose frequency-variable controller of locomotive convertible frequency air-conditioner comprises power circuit that drives frequency-changeable compressor and the control circuit two parts that are made of micro controller system.The power section circuit adopts hands over the orthogonal topological structure, and single phase alternating current produces vdc through overcommutation, is reverse into the three-phase alternating voltage of frequency and voltage variable again by IGBT Intelligent Power Module (IPM).In order to improve input power factor, in DC loop, seal in reactor.Control circuit is the core of whole device, and it mainly constitutes hardware by micro controller system, and controllable function is realized by the software of being worked out.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments.Fig. 1 is the special-purpose frequency-variable controller power circuit of a locomotive convertible frequency air-conditioner schematic diagram.
The specific embodiment
What Fig. 1 described is the special-purpose frequency-variable controller power circuit of locomotive convertible frequency air-conditioner principle.Single phase A.C. voltage is added to rectification module through power filter, and power filter plays the interference buffer action between power supply and the special-purpose frequency-variable controller.The vdc of rectification module output obtains the pulsation-free vdc through high-voltage capacitance filtering again, supplies with IGBT Intelligent Power Module (IPM).Intelligent Power Module (IPM) is reverse into vdc the three-phase alternating voltage of voltage and changeable frequency under the effect of control circuit.Resistance R 1 is the resistance that powers among the figure, mainly is the charging current that limits when initially powering on high-voltage capacitance, this resistance relay R Y1 short circuit that powered on after powering on.Because the vdc on the dc filter capacitor makes received current only could form electric current after input ac voltage is higher than vdc, the waveform of received current all is a pulse type like this, so, hand over the input power factor of orthogonal circuit very low, generally below 0.6.As seal in reactor in DC loop, because the afterflow effect of inductance will improve the waveform of electric current, input power factor can reach 0.85 when rated load, nominal load like this.
Claims (1)
- The special-purpose frequency-variable controller of a kind of locomotive convertible frequency air-conditioner, in control box, power circuit has voltage transformer, the resistance that powers on (R1), rectifier bridge, filter (C1), power model (IPM) are electrically connected successively; Control circuit has DC24V power supply, frequency reducing, switching on and shutting down master cock, master board, frequency display panel, ambient temperature and exhaust outlet of compressor temperature sensor to be electrically connected successively, it is characterized in that: power circuit is imported an end and is connected with the alternating current 220V power supply that the locomotive electrical generator sends, power model is exported an end and is connected with the alternating-current variable frequency motor of locomotive special air conditioner compressor, the structure of control box is the iron plate structure, its shape is a rectangular box, and length is 360 * 250 * 520mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254459 CN2560518Y (en) | 2001-10-31 | 2001-10-31 | Variable frequency controller for variable frequency air conditioner for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254459 CN2560518Y (en) | 2001-10-31 | 2001-10-31 | Variable frequency controller for variable frequency air conditioner for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2560518Y true CN2560518Y (en) | 2003-07-16 |
Family
ID=33663766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01254459 Expired - Fee Related CN2560518Y (en) | 2001-10-31 | 2001-10-31 | Variable frequency controller for variable frequency air conditioner for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2560518Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006207A1 (en) * | 2005-07-08 | 2007-01-18 | Wenzhong Du | An air-conditioning system for a vehicle |
| CN101634472B (en) * | 2008-07-23 | 2013-10-23 | Tcl集团股份有限公司 | Variable frequency air conditioner and frequency control method thereof |
| CN104344499A (en) * | 2013-08-08 | 2015-02-11 | 珠海格力电器股份有限公司 | Variable frequency air conditioner |
| CN110645683A (en) * | 2019-09-05 | 2020-01-03 | 成都仙德科技有限公司 | Portable sound energy air conditioner compressor control method |
-
2001
- 2001-10-31 CN CN 01254459 patent/CN2560518Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006207A1 (en) * | 2005-07-08 | 2007-01-18 | Wenzhong Du | An air-conditioning system for a vehicle |
| CN101634472B (en) * | 2008-07-23 | 2013-10-23 | Tcl集团股份有限公司 | Variable frequency air conditioner and frequency control method thereof |
| CN104344499A (en) * | 2013-08-08 | 2015-02-11 | 珠海格力电器股份有限公司 | Variable frequency air conditioner |
| WO2015018275A1 (en) * | 2013-08-08 | 2015-02-12 | 珠海格力电器股份有限公司 | Inverter air conditioner |
| CN104344499B (en) * | 2013-08-08 | 2018-04-24 | 珠海格力电器股份有限公司 | Variable frequency air conditioner |
| CN110645683A (en) * | 2019-09-05 | 2020-01-03 | 成都仙德科技有限公司 | Portable sound energy air conditioner compressor control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Mu Yuling Document name: Notification of Termination of Patent Right |