CN2669068Y - Air conditioner using medium frequency power supply - Google Patents
Air conditioner using medium frequency power supply Download PDFInfo
- Publication number
- CN2669068Y CN2669068Y CNU032556535U CN03255653U CN2669068Y CN 2669068 Y CN2669068 Y CN 2669068Y CN U032556535 U CNU032556535 U CN U032556535U CN 03255653 U CN03255653 U CN 03255653U CN 2669068 Y CN2669068 Y CN 2669068Y
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- power supply
- intermediate frequency
- air
- frequency power
- conditioner
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Abstract
The utility model provides an air conditioner using medium frequency power supply, and is mainly composed of an indoor and an outdoor machines of a common air conditioner, a cooling system, frequency-changing compressor, a three-phase full wave rectifier circuit, a filter circuit, a high speed switch module, a single chip computer, etc. The air conditioner can directly use the intermediate frequency power supply, a frequency-changing loop of the air conditioner comprises an intermediate frequency three-phase full-wave rectification filter circuit, the high speed switch module and a computer board control system, wherein the intermediate frequency power supply is changed into direct current by the three-phase full-wave rectification filter circuit, and is controlled by the single chip computer on a computer board to generate three-phase rotating magnetic flux pulse width modulation signals. The high speed switch module is driven to generate three-phase power signals which drive the frequency-changing compressor of the air conditioner. The utility model has the advantages of simple frequency-changing control circuit, small volume, compact structure and high transfer efficiency. With adopting rectifying filtration, a single chip computer control system and the high speed switch module, the frequency-changing compressor is driven to satisfy the requirement of using the air conditioner under the condition that intermediate frequency power supply feeds power.
Description
Technical field
The utility model relates to a kind of air-conditioning lacquerware that uses intermediate frequency power supply, particularly directly uses the air-conditioner of intermediate frequency power supply.
Background technology
The common air-conditioning device is made up of indoor set and off-premises station, work under power frequency (50 hertz) power supply condition of power supply usually.Generally, the common air-conditioning device can not be driven by intermediate frequency power supply, freezes or heats.Yet 400Hz (hertz) intermediate frequency power supply is used widely in the vehicles such as industry, military affairs and aircraft, steamer.Use intermediate frequency power supply power supply occasion at these, conventional common air-conditioning device can't turn round.In order also to use air-conditioner in intermediate frequency power supply power supply occasion, can only utilize supply convertor (inverter, frequency converter etc.) to transfer intermediate frequency (400 hertz) power supply to power frequency (50 hertz) power supply earlier usually, could drive the common air-conditioning device.This by supply convertor (inverter, frequency converter etc.), the process that intermediate frequency power supply is transferred to power frequency supply, electric energy loss is bigger, efficient is not high, and the volume of supply convertor is bigger, Heavy Weight, and price is expensive, be not suitable for very much using on the dynamic carrier, also be not suitable for using in some occasions of industry, military field.
Summary of the invention
In order to overcome the difficulty that the common air-conditioning device can't be used under the intermediate frequency power supply condition of power supply, the purpose of this utility model is, a kind of frequency conversion and control circuit advantages of simplicity and high efficiency air-conditioner are provided, thereby satisfy people use air-conditioner under intermediate frequency power supply power supply occasion demand.
The utility model uses the air-conditioner of intermediate frequency power supply, include the indoor and outdoors machine shell of common air-conditioning device, refrigeration system, indoor and outdoor heat exchanger tube connector, capillary and frequency-changeable compressor, it is characterized in that, this air-conditioner can directly use intermediate frequency power supply, include intermediate frequency three phase full wave rectification filter circuit in its frequency conversion loop, high speed switch module and computer panel control system, wherein intermediate frequency power supply becomes direct current by the three phase full wave rectification filter circuit, Single-chip Controlling on the computer plate produces three-phase rotating magnetic flux pulse width modulating signal, drives high speed switch module and produces the three phase power signal that drives the air-conditioner frequency-changeable compressor.
The air-conditioner that the utility model uses intermediate frequency power supply is mainly by the indoor set of common air-conditioning device and off-premises station, refrigeration system, indoor and outdoor heat exchanger tube connector, capillary, and frequency-changeable compressor etc. constitutes indoor and outdoors two partly.Wherein, indoor control section is made up of indoor set computer control panel and indoor fan etc.The low-voltage DC that transformer on the indoor set computer control panel and power circuit produce uses for control circuit.The cable that indoor set is connected with off-premises station can be with power supply by the indoor off-premises station that is sent to, and carries out information exchange by order wire and off-premises station.The off-premises station control section mainly is made up of off-premises station computer control panel and high speed switch module, frequency-changeable compressor and outdoor fan etc.When the frequency-changeable compressor in the off-premises station was worked, the intermediate frequency power supply through indoor set is come after three phase full wave rectification filtering, became direct current and is sent to high speed switch module.In module, power converting circuit produces low-voltage DC on the one hand, uses for the control circuit on the off-premises station computer plate.On the other hand, the direct current behind the full-wave rectifier filter generates the rotating magnetic flux pulse width modulating signal by the Single-chip Controlling on the computer plate, this signal drives high speed switch module, the modulation direct current generates the three phase power signal that drives frequency-changeable compressor, makes air-conditioner work.
The utility model adopts simple electronics not have part, development and design becomes to have that volume is little, compact conformation, frequency conversion control circuit that conversion efficiency is high, pass through rectifying and wave-filtering, the application of single-chip computer control system and high speed switch module, drive the air-conditioner frequency-changeable compressor, thereby make air-conditioner under the intermediate frequency power supply condition of power supply, be able to normal use.
Description of drawings
Fig. 1 is the structured flowchart that the utility model uses the intermediate frequency power supply air-conditioner.Wherein, 1-high speed switch module, 2-frequency-changeable compressor, 3-off-premises station CPU single-chip microcomputer computer plate, 4-outdoor fan, 5-reversal valve, 6-frequency-changeable compressor exhaust gas temperature sensor, the outdoor coil pipe used temperature sensor of 7-, 8-outdoor environment temperature sensor, the 9-order wire, the 10-coil temperature sensor, 11-indoor fan, 12-indoor set CPU single-chip microcomputer computer plate, 13-three-phase intermediate frequency power supply, the 14-infrared receiving terminal, 15-temperature sensor, 16-stube cable, 17-filtering magnet ring L, 18-rectifier bridge D, 19-PTC semistor, 20-main relay contact J, 21-master's filter capacitor C, the 22-low-voltage direct.
The specific embodiment
Describe the embodiment that the utility model uses the intermediate frequency power supply air-conditioner in detail below in conjunction with accompanying drawing.
The utility model is by the indoor set of common air-conditioning device and off-premises station, refrigeration system, indoor and outdoor heat exchanger tube connector, capillary, and frequency-changeable compressor etc. is formed indoor and outdoors two partly.Indoor set directly connects intermediate frequency power supply, dynamo-electric brain control panel 12, indoor fan 11, coil temperature sensor 10, infrared receiving terminal 14 and temperature sensor 15 etc. in the disposed chamber.Wherein, indoor fan 11 can adopt brshless DC motor, by three-phase intermediate frequency power supply 13 powered operation.The low-voltage DC that transformer and power circuit produce on the indoor set computer plate 12 uses for control circuit.Two temperature sensors 15,16 that are provided with place respectively on air inlet and the indoor coil, and in order to detect indoor environment temperature and indoor coil pipe, infrared remote receiver 14 is in order to receive remote information.Simultaneously, the cable 16 that the indoor and outdoor connects can be sent to off-premises station with power supply, and carries out information exchange by order wire 9 and off-premises station.Outdoor machine part is made up of off-premises station computer control panel 3, high speed switch module 1, frequency-changeable compressor 2 and the outdoor fan 4 etc. of configuration.When the frequency-changeable compressor 2 in the off-premises station was worked, by stube cable 16, the 400 hertz of power supplys of three-phase intermediate frequency with indoor set is sent here after three phase full wave rectification 18 filtering 17, became direct current and are sent to high speed switch module 1.In the module 1, the low-voltage DC 22 that is produced by power converting circuit uses for the control circuit on the off-premises station computer plate on the one hand.On the other hand, 400 hertz of power supplys of three-phase intermediate frequency of coming through indoor set, become direct current after full-wave rectification 18 filtering 17, and produce the three-phase PWM modulation signal through the Single-chip Controlling of computer plate 3, be the rotating magnetic flux pulse width modulating signal, drive high speed switch module 1, be modulated into 20-120Hz (hertz) three phase power signal, drive the frequency-changeable compressor 2 of air-conditioner, make air-conditioner work.
Outdoor fan 4 both can use mid-frequency motor also can use direct current generator.The compressor exhaust temperature sensor 6 that is provided with, outdoor coil pipe used temperature sensor 7 and outdoor environment temperature sensor 8 place respectively on air intake place, the outdoor coil pipe used and compressor, in order to measure outdoor environment temperature, coil temperature and compressor exhaust temperature.Reversal valve 5 in the air-conditioner is as freezing, heat conversion.
As shown in Figure 1, in the utility model three phase full wave rectification filter circuit, connect with rectifier bridge D as the filtering magnet ring L that suppresses High-frequency Interference, rectifier bridge D is in parallel with main filter capacitor C, and be serially connected with main relay parallel with one another and PTC semistor between the two, this PTC realizes soft start in order to limit main filter capacitor C initial charge current, and when main relay contact J does not provide current path during adhesive as yet, so that the control circuit operate as normal.This circuit both can be integrated on the off-premises station computer plate, can independently connect with off-premises station computer plate 3 and high speed switch module 1 again.
Only in order to explanation, the utility model is not limited to the foregoing description to the foregoing description, and all equivalents of being done in the scope of this case claim all should belong within the category of the present utility model.
Claims (6)
1, use the air-conditioner of intermediate frequency power supply, include the indoor and outdoors machine shell of common air-conditioning device, refrigeration system, indoor and outdoor heat exchanger tube connector, capillary and frequency-changeable compressor, it is characterized in that, this air-conditioner can directly use intermediate frequency power supply, include intermediate frequency three phase full wave rectification filter circuit in its frequency conversion loop, high speed switch module and computer panel control system, wherein intermediate frequency power supply becomes direct current by the three phase full wave rectification filter circuit, Single-chip Controlling on the computer plate produces three-phase rotating magnetic flux pulse width modulating signal, drives high speed switch module and produces the three phase power signal that drives the air-conditioner frequency-changeable compressor.
2, the air-conditioner of use intermediate frequency power supply according to claim 1, it is characterized in that, have in the intermediate frequency three phase full wave rectification filter circuit as the filtering magnet ring L that suppresses high-frequency interferencing signal, rectifier bridge D, filter capacitor C, relay J, and, realize the semistor PTC of soft start in order to limit main filter capacitor initial charge current.
3, the air-conditioner of use intermediate frequency power supply according to claim 1 and 2 is characterized in that, described intermediate frequency three phase full wave rectification wave circuit can be integrated on the off-premises station computer plate, also can independently connect with computer plate and high speed die sinking piece.
4, the air-conditioner of use intermediate frequency power supply according to claim 1 is characterized in that, on this air conditioner room unit computer plate transformer is arranged, and power circuit produces the low-voltage DC for control system work.
5, the air-conditioner of use intermediate frequency power supply according to claim 1 is characterized in that, outdoor fan can be a mid-frequency motor, also can be direct current generator.
6, the air-conditioner of use intermediate frequency power supply according to claim 1 is characterized in that, indoor fan can be a brshless DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032556535U CN2669068Y (en) | 2003-07-16 | 2003-07-16 | Air conditioner using medium frequency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032556535U CN2669068Y (en) | 2003-07-16 | 2003-07-16 | Air conditioner using medium frequency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669068Y true CN2669068Y (en) | 2005-01-05 |
Family
ID=34438332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032556535U Expired - Fee Related CN2669068Y (en) | 2003-07-16 | 2003-07-16 | Air conditioner using medium frequency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669068Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278802A (en) * | 2011-07-19 | 2011-12-14 | 深圳市易网通通信技术有限公司 | Minus 48V direct current frequency-conversion speed-regulation temperature control system |
| CN102396150A (en) * | 2009-04-17 | 2012-03-28 | 大金工业株式会社 | Power circuit, and computer-readable recording medium containing a control program for power circuits |
| CN104110778A (en) * | 2013-10-16 | 2014-10-22 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner based on Z source inverter |
| CN104917439A (en) * | 2015-05-21 | 2015-09-16 | 浪潮电子信息产业股份有限公司 | Control circuit of data center machine room variable frequency air conditioner compressor |
| CN105242577A (en) * | 2015-09-28 | 2016-01-13 | 苏州艾克威尔科技有限公司 | Soft starting integrated machine having multiple soft starting functions, and starting method thereof |
| CN106100075A (en) * | 2016-08-25 | 2016-11-09 | 深圳沃海森科技有限公司 | The transducer air conditioning of ultrasonic wireless charging |
| CN110173806A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
-
2003
- 2003-07-16 CN CNU032556535U patent/CN2669068Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102396150A (en) * | 2009-04-17 | 2012-03-28 | 大金工业株式会社 | Power circuit, and computer-readable recording medium containing a control program for power circuits |
| CN102396150B (en) * | 2009-04-17 | 2014-05-14 | 大金工业株式会社 | Power circuit |
| US8988836B2 (en) | 2009-04-17 | 2015-03-24 | Daikin Industries, Ltd. | Power circuit, and computer-readable recording medium storing a control program for power circuits |
| CN102278802A (en) * | 2011-07-19 | 2011-12-14 | 深圳市易网通通信技术有限公司 | Minus 48V direct current frequency-conversion speed-regulation temperature control system |
| CN102278802B (en) * | 2011-07-19 | 2013-09-25 | 深圳市易网通通信技术有限公司 | Minus 48V direct current frequency-conversion speed-regulation temperature control system |
| CN104110778A (en) * | 2013-10-16 | 2014-10-22 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner based on Z source inverter |
| CN104110778B (en) * | 2013-10-16 | 2017-02-15 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner based on Z source inverter |
| CN104917439A (en) * | 2015-05-21 | 2015-09-16 | 浪潮电子信息产业股份有限公司 | Control circuit of data center machine room variable frequency air conditioner compressor |
| CN105242577A (en) * | 2015-09-28 | 2016-01-13 | 苏州艾克威尔科技有限公司 | Soft starting integrated machine having multiple soft starting functions, and starting method thereof |
| CN106100075A (en) * | 2016-08-25 | 2016-11-09 | 深圳沃海森科技有限公司 | The transducer air conditioning of ultrasonic wireless charging |
| CN110173806A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN110173806B (en) * | 2019-05-10 | 2021-12-14 | 美的集团武汉暖通设备有限公司 | Air conditioner and control method and device thereof |
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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 |