CN201181060Y - DC frequency conversion air conditioner - Google Patents
DC frequency conversion air conditioner Download PDFInfo
- Publication number
- CN201181060Y CN201181060Y CNU2008200929427U CN200820092942U CN201181060Y CN 201181060 Y CN201181060 Y CN 201181060Y CN U2008200929427 U CNU2008200929427 U CN U2008200929427U CN 200820092942 U CN200820092942 U CN 200820092942U CN 201181060 Y CN201181060 Y CN 201181060Y
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- outdoor
- indoor
- frequency
- control section
- air regulator
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Abstract
The utility model provides a DC transduction air conditioner, which comprises an indoor control unit and an outdoor control unit; the indoor control unit comprises an indoor main control panel and an indoor display board; the outdoor control unit comprises an outdoor power panel, an outdoor module board and an outdoor PFC power factor correcting plate; the outdoor module board comprises a permanent-magnet synchronous motor driver. The DC transduction air conditioner has the beneficial technical effects that the EMC requirement is met, and the whole electrical control system has the advantages of stable operation, wide governor deflection, high efficiency, low cost, strong compatibility, universality that satisfies the seriation of the machines, etc.
Description
Technical field
The utility model belongs to the air regulator field, relates in particular to a kind of DC frequency-changing air regulator.
Background technology
At present, the high-power frequency conversion air-conditioner that sell the market is to use the AC frequency conversion air-conditioner of alternating frequency conversion technique mostly, and it is to adopt the direct current varied-frequency air conditioners of the DC speed regulation technology that 120 degree square waves drive that part is also arranged.
The AC frequency conversion air-conditioning is because its compressor that adopts is an ac three-phase asynchronous motor, and the motor utilization ratio is low, and the efficiency of air-conditioner is restricted, and adopts open loop control in the control, and control ratio is more coarse.
Though the DC frequency converting air-conditioner that 120 degree square waves drive has adopted permagnetic synchronous motor, the control aspect has also adopted closed-loop control, but it has only two groups of coils to pass through electric current in three groups of coils of compressor electric motor at any time, another group is used as rotor-position and detects, and its flow through coil electric current be 120 the degree square wave currents, there is the saltus step process, this kind control method easily causes the demagnetization of compressor permanent magnet body, easy step-out, more seriously the low-frequency operation vibration is big, running noises is serious, and this shows particularly outstanding on high-power machine.The high-power frequency conversion machine of this control mode of a lot of employings all is to have avoided low-frequency operation, and this superior function for air-conditioner is just had a greatly reduced quality.
Summary of the invention
The purpose of this utility model is to provide a kind of DC frequency-changing air regulator, this DC frequency-changing air regulator be intended to solve the motor utilization ratio that exists in prior art efficiency low, air-conditioner be restricted, control coarse, because of compressor permanent magnet body demagnetization easily step-out, problem such as the low-frequency operation vibration is big, running noises is serious.
The utility model provides a kind of DC frequency-changing air regulator, comprise indoor control section and outdoor control section, described indoor control section comprises indoor master board and indoor display board, described outdoor control section comprises outdoor power panel, outdoor module plate and outdoor PFC PFC plate, and described outdoor module plate comprises the permagnetic synchronous motor driver.
Technical solution adopted in the utility model also comprises: described permagnetic synchronous motor driver is a special DC brush-less permanent magnetic synchronous motor driver.
Technical solution adopted in the utility model also comprises: described outdoor module plate also comprises the IPM SPM.
Technical solution adopted in the utility model also comprises: described outdoor PFC plate also comprises the part active power factor rectifier.
Technical solution adopted in the utility model also comprises: described indoor master board comprises memory, the operation of described memory storage different types of machines and control parameter.
The technical solution of the utility model has following advantage or beneficial effect: DC frequency-changing air regulator of the present utility model is applied to special DC brush-less permanent magnetic synchronous motor driver in the driving of air-conditioner direct current compressor, power supply processing aspect adopts advanced part active power factor rectifier, make complete machine not only meet the EMC requirement, and whole electric control system has high efficiency, low cost, advantage such as compatible strong, indoor section is provided with memory, satisfy the versatility of machine seriesization, it is stable, speed adjustable range is broad, the high efficiency high-performance.
Description of drawings
Fig. 1 is the structural representation of DC frequency-changing air regulator of the present utility model;
Fig. 2 is the circuit diagram of DC frequency-changing air regulator of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.
See also Fig. 1 and Fig. 2, be the structural representation and the circuit diagram of DC frequency-changing air regulator of the present utility model.DC frequency-changing air regulator of the present utility model comprises outdoor control section 10 and indoor control section 20.Outdoor control section 10 comprises outdoor module plate 12, outdoor PFC (PFC) plate 14 and outdoor power panel 16, and outdoor power panel 12, outdoor PFC plate 14 carry out SCI with 16 of outdoor module plates and communicate by letter.Indoor control section 20 comprises indoor master board 22 and indoor display board 24.
Be provided with memory 26 in the indoor master board 22, this memory 26 can write down the operation and the control parameter of different types of machines, differentiates type automatically and calls corresponding operational factor, adapts to different off-premises stations.Indoor control section 20 reads the type code that outdoor control section 10 is preset by SCI communication; discern outdoor type; from memory 26, transfer the relevant parameter of this type then, comprise Frequency point, protection temperature, protective current etc., finish the automatic identification and the intelligence coupling of indoor and outdoor machine.
The outdoor module plate 12 of outdoor control section 10 comprises special DC brush-less permanent magnetic synchronous motor driver 17 and IPM SPM 18, realizes the driving and the rotational speed regulation of compressor.Special DC brush-less permanent magnetic synchronous motor driver 17 built-in resistor detection system total currents, voltage signal carries out ratio by AD converter and amplifies, simultaneously with pwm pulse synchronously and produce the AD conversion constantly, outdoor control section 10 according to the current signal that detects, voltage signal and AD conversion constantly, carry out three-phase coil electric current and iu, iv, the computing of iw, thereby accurately detection rotor rotating speed and position in good time.Special DC brush-less permanent magnetic synchronous motor driver 17 is according to the frequency instruction of the rotor-position that detects and angle of revolution and 20 outputs of indoor control section, adjust in good time and drive the pwm signal dutycycle, the PWM voltage of control input stator coil, make three groups of stator coils of compressor electric motor flow through 180 degree sine-wave currents, thereby make compressor operating steady, electric efficiency is higher.
The outdoor PFC plate 14 of outdoor control section 10 and outdoor power panel 16 are finished power supply jointly and are handled, and will exchange to be rectified into direct current after input is handled through EMC, carry out power factor correction again.The outdoor PFC plate 14 of outdoor control section 10 comprises part active power factor rectifier 19.Part active power factor rectifier 19 is proofreaied and correct single-phase active pfc circuit structure and the double-ended control scheme of adopting, the single-chip microcomputer of outdoor power panel 16 is as controller, these signals of machine such as voltage over zero, inductive current, 15V control voltage and output voltage are carried out exporting suitable PWM ripple after the calculation process, go to control opening and turn-offing of IGBT.The both-end pulse is controlled in every half period of input voltage, at two ends switching tube is controlled, input current is carried out copped wave control, and in the highest centre position of input voltage amplitude switching tube is closed, carry out natural commutation, realize the higher input current waveform of sinusoidal degree like this, obtain very high power factor.When outdoor PFC plate 14 is worked, because the loss of the fast diode that reverse recovery causes reduces the also corresponding decline of the switching loss of power switch greatly.In the natural commutation interval, power switch produces any loss hardly, fast diode have only conduction loss, but the natural commutation time is greater than 1/3 power cycle.Therefore the system effectiveness of the active PFC of part increases greatly, and power output is big more, and energy-saving effect is obvious more.Outdoor fan, reversal valve, electronic Expansion Valve Control are also finished by outdoor power panel 16.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1, a kind of DC frequency-changing air regulator, comprise indoor control section and outdoor control section, described indoor control section comprises indoor master board and indoor display board, described outdoor control section comprises outdoor power panel, outdoor module plate and outdoor PFC PFC plate, it is characterized in that described outdoor module plate comprises the permagnetic synchronous motor driver.
2, DC frequency-changing air regulator as claimed in claim 1 is characterized in that, described permagnetic synchronous motor driver is a special DC brush-less permanent magnetic synchronous motor driver.
3, DC frequency-changing air regulator as claimed in claim 1 or 2 is characterized in that, described outdoor module plate also comprises the IPM SPM.
4, DC frequency-changing air regulator as claimed in claim 1 is characterized in that, described outdoor PFC plate comprises the part active power factor rectifier.
5, DC frequency-changing air regulator as claimed in claim 1 is characterized in that, described indoor master board comprises memory, the operation of described memory storage different types of machines and control parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200929427U CN201181060Y (en) | 2008-03-27 | 2008-03-27 | DC frequency conversion air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200929427U CN201181060Y (en) | 2008-03-27 | 2008-03-27 | DC frequency conversion air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181060Y true CN201181060Y (en) | 2009-01-14 |
Family
ID=40250560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200929427U Expired - Lifetime CN201181060Y (en) | 2008-03-27 | 2008-03-27 | DC frequency conversion air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181060Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148989A1 (en) * | 2009-06-26 | 2010-12-29 | 珠海格力电器股份有限公司 | Air conditionaer and method for controlling the same |
| CN102305452A (en) * | 2011-07-15 | 2012-01-04 | 宁波奥克斯电气有限公司 | Control method of operating condition of PFC (Power Factor Corrector) module |
| CN103197699A (en) * | 2013-04-18 | 2013-07-10 | 中国扬子集团滁州扬子空调器有限公司 | Brushless DC (direct current) motor air conditioning system control circuit |
| WO2014015680A1 (en) * | 2012-07-21 | 2014-01-30 | 中山大洋电机股份有限公司 | Control system of heating, ventilation and air conditioning system |
| US10234165B2 (en) | 2012-07-21 | 2019-03-19 | Zhongshan Broad-Ocean Motor Co., Ltd. | HVAC control system for household central air conditioning |
-
2008
- 2008-03-27 CN CNU2008200929427U patent/CN201181060Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148989A1 (en) * | 2009-06-26 | 2010-12-29 | 珠海格力电器股份有限公司 | Air conditionaer and method for controlling the same |
| CN102305452A (en) * | 2011-07-15 | 2012-01-04 | 宁波奥克斯电气有限公司 | Control method of operating condition of PFC (Power Factor Corrector) module |
| CN102305452B (en) * | 2011-07-15 | 2014-04-16 | 宁波奥克斯电气有限公司 | Control method of operating condition of PFC (Power Factor Corrector) module |
| WO2014015680A1 (en) * | 2012-07-21 | 2014-01-30 | 中山大洋电机股份有限公司 | Control system of heating, ventilation and air conditioning system |
| US10234165B2 (en) | 2012-07-21 | 2019-03-19 | Zhongshan Broad-Ocean Motor Co., Ltd. | HVAC control system for household central air conditioning |
| CN103197699A (en) * | 2013-04-18 | 2013-07-10 | 中国扬子集团滁州扬子空调器有限公司 | Brushless DC (direct current) motor air conditioning system control circuit |
| CN103197699B (en) * | 2013-04-18 | 2015-09-30 | 中国扬子集团滁州扬子空调器有限公司 | DC brushless motor Air-condition system control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |