CN1443981A - Air conditioner compressor preheating control method - Google Patents
Air conditioner compressor preheating control method Download PDFInfo
- Publication number
- CN1443981A CN1443981A CN 02104056 CN02104056A CN1443981A CN 1443981 A CN1443981 A CN 1443981A CN 02104056 CN02104056 CN 02104056 CN 02104056 A CN02104056 A CN 02104056A CN 1443981 A CN1443981 A CN 1443981A
- Authority
- CN
- China
- Prior art keywords
- compressor
- preheating
- electric current
- coil
- outdoor temperature
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a control method for preheating compressor of air conditioner. Its process includes four stages: outdoor temperature detection, comparing outdoor temperature with set temperature, setting preheating time and preheating compressor. In the preheating process it has no need of starting motor of the compressor. As compared with existent technology is has no need of adding heater, can directly utilize operation system of compressor to control preheating process of compressor.
Description
Technical field
The invention relates to cooler compressor, or rather, is the pre-heat control method about compressor.
Background technology
Air-conditioner in the past when carrying out preheating for compressor, generally takes to be provided with the mode of heater, as shown in Figure 1 on the framework of compressor.
The control procedure of heater is summarized as follows:
As Fig. 2, Fig. 3, shown in Figure 4, according to using needs or variations in temperature, air-conditioner is when carrying out the heating running automatically, controller reads outdoor temperature by outdoor temperature sensor, for example when outdoor temperature below set point of temperature T ℃ the time, the controller starting relay makes heater connect power supply, and compressor is carried out preheating.Be the time initial sum termination by prior setting the preheating time of compressor.
The preheating of compressor in the past is that after compressor obtained abundant preheating, air-conditioner just began the running of heating before air-conditioner carries out the heating running.But there was following shortcoming in the preheating method of compressor in the past.
(1) compressor preheating is provided with heater, and the cost of manufacture of air-conditioner improves thereupon.
(2) control device of control heater need be set in addition, as controller, relay and outdoor temperature sensor etc., cost of manufacture also improves thereupon.
(3) because heater is arranged on the outside of compressor, heat to its inside by the outside of compressor, so can postpone heating the running time of air-conditioner.
(4) as above shortcoming has reduced the trust of user to product, so greatly reduce the purchasing power of product.
Summary of the invention
The purpose of this invention is to provide and utilize the three-phase coil that is arranged on compressor inside, utilize electric current to pass through coil, produce heat, thereby compressor is carried out the method for preheating, can reduce the production cost of air-conditioner thus, shorten the preheating time of air-conditioner, improve the service property (quality) of air-conditioner.
Purpose of the present invention is achieved by following control method.
1. the control method of air conditioner compressor preheating has following control procedure:
(1) detects outdoor temperature;
(2) outdoor temperature and design temperature are compared, judge whether to carry out compressor preheating;
(3), then set preheating time according to outdoor temperature if need carry out compressor preheating;
(4) by the preheating time that sets compressor is carried out preheating, the motor of machine and No starting contracts.
2. in the described compressor preheating process, three-phase coil is designed to electric current can flow to other phases from any one by coil, and forms to reciprocal conveying electric current on coil again.
3. the electric current in the described three-phase coil from u in opposite directions the v phase, again from v in opposite directions u flow mutually; Then electric current again from v in opposite directions the w phase, again from w in opposite directions v flow mutually; Last electric current from w in opposite directions the u phase, again from u in opposite directions w flow mutually; Can no matter which starting point begin mutually from.
4. the control procedure of described three-phase coil preheating is:
(1) outdoor temperature is subdivided into a plurality of temperature ranges, compares with the temperature of setting again, determine preheating time;
(2) set the sense of current and can flow to other phases by coil, and on coil, form to reciprocal conveying electric current from any one;
(3) read outdoor temperature, determine preheating time;
(4) three-phase coil is confirmed preheating time and electric current supply mode, compressor is carried out preheating.
The present invention's beneficial effect compared to prior art is:
(1) do not need heater is set in addition, reduced cost of manufacture.
(2) directly utilize the operation system of compressor to control the warm of compressor,, reduced cost of manufacture equally so new control device no longer is set.
(3) shortened preheating time of compressor
(4) owing to the inside that electric current is directly introduced compressor, thus the serviceability of the inner machine oil of air compressor motor improved simultaneously, thus reduced the starting current of compressor.
(5) because the reduction of compressor start electric current, needn't the excessive capacitor of installed capacity, thus also reduced cost of manufacture.
(6) owing to the reduction of compressor start electric current, reduced the noise that compressor produced, thereby improved the trust of user product.
Description of drawings
Fig. 1 is the structural representation of existing air conditioner compressor preheating with heater;
Fig. 2, Fig. 3 are the schematic diagram of existing air conditioner compressor preheating with heater;
Fig. 4 is the control flow chart of existing air conditioner compressor preheating with heater;
Fig. 5 is the schematic diagram of compressor three-phase current of the present invention preheating;
Fig. 6 is the control flow chart of compressor three-phase current of the present invention preheating;
Fig. 7 is the state diagram of setting the compressor preheating time among the present invention according to outdoor temperature;
Fig. 8 is the running signal condition figure of compressor three-phase current of the present invention preheating;
Fig. 9 is the electric current flow regime figure of compressor three-phase current of the present invention preheating.
Main part mark explanation among the figure:
1---compressor 3---heater
5---controller 7---relay
103---electric current loader 105---rectifier
11---power supply 111---electric current input control circuit
113---IGBT control circuit 115---direct current connects voltage sensor
13---outdoor temperature sensor
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 5, what the present invention adopted is the compressor of three-phase current preheating, and the inside of compressor 1 is provided with three coil C1, C2 and C3.
Electric current loader 103 is provided with six travel switch U, V, W, X, Y, Z, is together in series in twos, draws three lead-in wires coil C1, C2 are connected with power supply with C3.
The preheat curent of the Inside coil of compressor 1 is supplied with by electric current loader 103, during compressor preheating, control the motor of compressor and forbid running, and only compressor be carried out preheating, and this is the key of control method of the present invention.
Rectifier 105 is converted to DC current with the alternating current of power supply 11 inputs, flows to electric current loader 103.Rectifier 105 is provided with travel switches I GBT and capacitor C and current limiter R.Capacitor C provides the high-voltage dc voltage that starts usefulness for compressor 1, and current limiter R is the device that improves reverse efficiency.
IGBT control circuit 113 and electric current input control circuit 111 are provided with for controlling rectifier 105 and electric current loader 103.Controller 5 was controlled by the running time of the travel switches I GBT of 113 pairs of rectifiers 105 of IGBT control circuit.The running time of six travel switch U, the Vs of controller 5 by 111 pairs of electric current loaders 103 of electric current input control circuit, W, X, Y, Z is controlled.So electric current input control circuit 111 is controlled the preheating time of compressor 1 by the running time of control travel switch.
The effect that direct current connects voltage sensor 115 is to judge the voltage swing that is transported to electric current loader 103 by rectifier 105, and signal is passed to controller 5.
By the control flow chart of the compressor three-phase current preheating of Fig. 6 as can be seen, the warm-up operation of compressor began before starting compressor, especially the preheating of compressor will be more important when outdoor temperature is lower, and warm-up operation will be finished before the air conditioner heat-production system works.
Whether controller 5 is in operating state in 300 stage decision means, if be not in operating state but static at 300 stage parts, controller 5 just can not begin the compressor preheating running.
But, if when 300 stage parts are in operating state, just controller 5 judges in 303 stages whether the operation frequency of compressor 1 is 0HZ.
If be judged as need add thermocompressor 1 time in 303 stages, controller 5 is judged the state of outdoor temperature again in 306 stages.In other words, controller 5 is determined outdoor temperatures by outdoor temperature sensor 13, if outdoor temperature just needn't be carried out preheating to compressor more than design temperature, if when outdoor temperature is lower than design temperature then need compressor is carried out preheating.
306 stages were judged as outdoor temperature when being lower than design temperature, and controller 5 will be judged and will carry out preheating to compressor 1.
309 stages judged whether compressor is in warm.
If compressor 1 is not carried out the preheating running, controller 5 just began compressor is carried out warm-up operation in 312 stages in 309 stages.
Set preheating time in 312 stages, as shown in Figure 7, controller 5 has been set the preheating running time by outdoor temperature.In other words outdoor temperature between X2 to X1 in, be T1 preheating time; Outdoor temperature between X3 to X2 in preheating time be T2; Outdoor temperature is T3 preheating time less than X3 the time.
So, controller 5 be judged as by 300 to 309 stages be necessary compressor carried out preheating in, confirm outdoor temperature range by outdoor temperature sensor 13 again.
When outdoor temperature between the X2 to X1, i.e. 315 stages, setting preheating time is T1, just enters for 327 and 330 stages; When outdoor temperature between the X3 to X2 the time, i.e. 318 stages, setting preheating time is T2, just enters for 333 and 336 stages; When outdoor temperature less than X3 the time, setting preheating time is T3, just enters for 321 and 324 stages.
If reach the preheating time of above setting, warm-up operation finishes at once, i.e. 339 stages.
Fig. 8 is the running signal condition figure of compressor three-phase current of the present invention preheating, and Fig. 9 is the electric current flow regime figure of compressor three-phase current preheating.
As seen from Figure 8, the signal of each phase is all being kept same time Δ T, is added in three electric currents on the coil and has 12 states.
1. first interval is electric current by the U state that flows mutually of V in opposite directions, controlling two travel switch U and Y on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch U coil C1 and coil C2 are coupled together, form the loop through travel switch Y again.So V is mobile mutually in opposite directions by U for electric current in time Δ T, electric current flows to coil C2 from coil C1 in other words, thereby produces heat.
2. second interval is gone up all travel switch U, V, W, X, Y, Z and all is closed, and electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on compressor 1 coil.
3. the 3rd interval is electric current by the V state that flows mutually of U in opposite directions, controlling two travel switch V and X on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch V coil C2 and coil C1 are coupled together, become the loop through the travel switch X-shaped again.So U is mobile mutually in opposite directions by V for electric current in time Δ T, electric current flows to coil C1 from coil C2 in other words, thereby produces heat.
4. the 4th interval is gone up all travel switch U, V, W, X, Y, Z and all is closed, and electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on the compressor coil.
5. the 5th interval is electric current by the V state that flows mutually of W in opposite directions, controlling two travel switch V and Z on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch V coil C2 and coil C3 are coupled together, pass through the Z-shaped one-tenth of travel switch loop again.So W is mobile mutually in opposite directions by V for electric current in time Δ T, electric current flows to coil C3 from coil C2 in other words, thereby produces heat.
6. the 6th interval is gone up all travel switch U, V, W, X, Y, Z and all is closed, and electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on the compressor coil.
7. electric current between SECTOR-SEVEN by the W state that flows mutually of V in opposite directions, controlling two travel switch W and Y on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch W coil C3 and coil C2 are coupled together, form the loop through travel switch Y again.So V is mobile mutually in opposite directions by W for electric current in time Δ T, electric current flows to coil C2 from coil C3 in other words, thereby produces heat.
8. go up all travel switch U, V, W, X, Y, Z between Section Eight and all be closed, electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on the compressor coil.
9. the 9th interval is electric current by the W state that flows mutually of U in opposite directions, controlling two travel switch W and X on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch W coil C3 and coil C1 are coupled together, become the loop through the travel switch X-shaped again.So U is mobile mutually in opposite directions by W for electric current in time Δ T, electric current flows to coil C1 from coil C3 in other words, thereby produces heat.
10. the tenth interval is gone up all travel switch U, V, W, X, Y, Z and all is closed, and electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on the compressor coil.
The 11 interval is an electric current by the U state that flows mutually of W in opposite directions, controlling two travel switch U and Z on the electric current loader 103 at electric current input control circuit 111 in this interval, by travel switch U coil C1 and coil C3 are got up, pass through the Z-shaped one-tenth of travel switch loop again.So W is mobile mutually in opposite directions by U for electric current in time Δ T, electric current flows to coil C3 from coil C1 in other words, thereby produces heat.
Last all travel switch U, V, W, X, Y, the Z of are closed between No.12 District, and electric current input control circuit 111 utilizes time Δ T to remove the voltage that produces on the compressor coil.
These 12 control signals are exported by preheating time repeatedly by controller 5, electric current input control circuit 111 is that benchmark is controlled six travel switches on the electric current loader 103 by above control signal, thereby reach purpose, finished the warm of compressor thus to three coil input currents in the compressor 1.
Claims (4)
1. the control method of an air conditioner compressor preheating is characterized in that, has following control procedure:
(1) detects outdoor temperature;
(2) outdoor temperature and design temperature compare, and judge whether to carry out compressor preheating;
(3), then set preheating time according to outdoor temperature if need carry out preheating to compressor;
(4) by the preheating time that sets compressor is carried out preheating, and the motor of No starting compressor.
2. control method according to claim 1 is characterized in that, in the described compressor preheating process, three-phase coil is designed to electric current can flow to other phase coils from any phase coil, and forms to reciprocal conveying electric current on coil again.
3. control method according to claim 2 is characterized in that, the electric current in the described three-phase coil from U in opposite directions the V phase, again from V in opposite directions U flow mutually; Then electric current again from V in opposite directions the W phase, again from W in opposite directions V flow mutually; Last electric current from W in opposite directions the U phase, again from U in opposite directions W flow mutually; Can no matter which starting point begin mutually from.
4. control method according to claim 1 is characterized in that, the control procedure of described three-phase coil preheating is:
(1) outdoor temperature is subdivided into a plurality of temperature ranges, compares with the temperature of setting again, determine preheating time;
(2) set the sense of current and can flow to other phases, and on coil, form to reciprocal conveying electric current from any one by coil;
(3) read outdoor temperature, determine preheating time;
(4) affirmation is carried out preheating to the preheating time and the electric current supply mode of three-phase coil to compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104056 CN1265148C (en) | 2002-03-08 | 2002-03-08 | Air conditioner compressor preheating control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104056 CN1265148C (en) | 2002-03-08 | 2002-03-08 | Air conditioner compressor preheating control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1443981A true CN1443981A (en) | 2003-09-24 |
| CN1265148C CN1265148C (en) | 2006-07-19 |
Family
ID=27810800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104056 Expired - Fee Related CN1265148C (en) | 2002-03-08 | 2002-03-08 | Air conditioner compressor preheating control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265148C (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366994C (en) * | 2004-09-20 | 2008-02-06 | 日产技术中心北美股份有限公司 | Air conditioner control logic for compressor noise and torque management |
| CN101501413B (en) * | 2006-08-11 | 2010-07-28 | 大金工业株式会社 | Refrigeration device |
| CN101915232A (en) * | 2010-08-24 | 2010-12-15 | 海信容声(广东)冰箱有限公司 | Method for controlling wine cabinet compressor |
| CN101553696B (en) * | 2006-01-24 | 2011-08-31 | Lg电子株式会社 | Air conditioner and control method thereof |
| CN103185383A (en) * | 2011-12-29 | 2013-07-03 | 松下电器产业株式会社 | Control method of air conditioner |
| CN103743059A (en) * | 2013-12-23 | 2014-04-23 | 广东美芝精密制造有限公司 | Air conditioner and pre-heating control method and device of compressor |
| CN103930729A (en) * | 2011-12-26 | 2014-07-16 | 松下电器产业株式会社 | Air conditioner |
| CN104422060A (en) * | 2013-08-20 | 2015-03-18 | 广东美的制冷设备有限公司 | Control method and device of air conditioner |
| CN104633839A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Method and device for preheating compressor of air conditioning unit |
| CN104848482A (en) * | 2015-05-05 | 2015-08-19 | 青岛海尔空调器有限总公司 | Preheating control method of air conditioner compressor |
| CN103185383B (en) * | 2011-12-29 | 2016-12-14 | 松下电器产业株式会社 | The control method of air-conditioning |
| CN106766446A (en) * | 2016-11-29 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Air-conditioner and lubricating oil temperature determination methods, the control device for compressor |
| CN106788093A (en) * | 2016-11-30 | 2017-05-31 | 杭州先途电子有限公司 | The control method of compressor preheating noise reduction |
| CN107246392A (en) * | 2017-05-31 | 2017-10-13 | 青岛海尔空调器有限总公司 | It is a kind of to reduce the control method of compressor preheating noise |
| CN108001164A (en) * | 2017-12-07 | 2018-05-08 | 湖南华强电气股份有限公司 | A kind of control method of vehicle-mounted heat pump air conditioner unit |
| CN109539465A (en) * | 2018-11-15 | 2019-03-29 | 珠海格力电器股份有限公司 | Preheating control method and device for compressor, storage medium and air conditioner |
| CN109579229A (en) * | 2018-10-30 | 2019-04-05 | 青岛海信日立空调系统有限公司 | A kind of air conditioner compressor preheating control method and air conditioner |
| CN112033045A (en) * | 2020-08-17 | 2020-12-04 | 珠海格力电器股份有限公司 | Control method and device of heating equipment and controller |
| CN112483359A (en) * | 2020-11-23 | 2021-03-12 | 儒竞艾默生环境优化技术（上海）有限公司 | Compressor starting device and method and variable-frequency air conditioner system |
| CN112728725A (en) * | 2021-01-22 | 2021-04-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Control device and method of compressor and air conditioner |
| CN112762624A (en) * | 2021-01-05 | 2021-05-07 | 深圳麦格米特电气股份有限公司 | Hot air blower control method and device, controller, hot air blower and storage medium |
| CN114234375A (en) * | 2021-12-17 | 2022-03-25 | 珠海格力电器股份有限公司 | Compressor preheating control method and device, storage medium and air conditioner |
-
2002
- 2002-03-08 CN CN 02104056 patent/CN1265148C/en not_active Expired - Fee Related
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366994C (en) * | 2004-09-20 | 2008-02-06 | 日产技术中心北美股份有限公司 | Air conditioner control logic for compressor noise and torque management |
| CN101553696B (en) * | 2006-01-24 | 2011-08-31 | Lg电子株式会社 | Air conditioner and control method thereof |
| CN101501413B (en) * | 2006-08-11 | 2010-07-28 | 大金工业株式会社 | Refrigeration device |
| CN101915232A (en) * | 2010-08-24 | 2010-12-15 | 海信容声(广东)冰箱有限公司 | Method for controlling wine cabinet compressor |
| WO2012024936A1 (en) * | 2010-08-24 | 2012-03-01 | 海信容声(广东)冰箱有限公司 | Control method of wine cabinet compressor |
| CN101915232B (en) * | 2010-08-24 | 2012-06-27 | 海信容声(广东)冰箱有限公司 | Method for controlling wine cabinet compressor |
| CN103930729A (en) * | 2011-12-26 | 2014-07-16 | 松下电器产业株式会社 | Air conditioner |
| CN103185383B (en) * | 2011-12-29 | 2016-12-14 | 松下电器产业株式会社 | The control method of air-conditioning |
| CN103185383A (en) * | 2011-12-29 | 2013-07-03 | 松下电器产业株式会社 | Control method of air conditioner |
| CN104422060A (en) * | 2013-08-20 | 2015-03-18 | 广东美的制冷设备有限公司 | Control method and device of air conditioner |
| CN104422060B (en) * | 2013-08-20 | 2016-12-28 | 广东美的制冷设备有限公司 | The control method of air-conditioner and device |
| CN104633839A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Method and device for preheating compressor of air conditioning unit |
| CN103743059A (en) * | 2013-12-23 | 2014-04-23 | 广东美芝精密制造有限公司 | Air conditioner and pre-heating control method and device of compressor |
| CN103743059B (en) * | 2013-12-23 | 2016-08-17 | 广东美芝精密制造有限公司 | Air-conditioner and compressor thereof preheat control method, device |
| CN104848482A (en) * | 2015-05-05 | 2015-08-19 | 青岛海尔空调器有限总公司 | Preheating control method of air conditioner compressor |
| CN104848482B (en) * | 2015-05-05 | 2017-11-14 | 青岛海尔空调器有限总公司 | Compressor of air conditioner preheating control method |
| CN106766446A (en) * | 2016-11-29 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Air-conditioner and lubricating oil temperature determination methods, the control device for compressor |
| CN106788093A (en) * | 2016-11-30 | 2017-05-31 | 杭州先途电子有限公司 | The control method of compressor preheating noise reduction |
| CN107246392A (en) * | 2017-05-31 | 2017-10-13 | 青岛海尔空调器有限总公司 | It is a kind of to reduce the control method of compressor preheating noise |
| CN107246392B (en) * | 2017-05-31 | 2019-03-01 | 青岛海尔空调器有限总公司 | A kind of control method reducing compressor preheating noise |
| CN108001164A (en) * | 2017-12-07 | 2018-05-08 | 湖南华强电气股份有限公司 | A kind of control method of vehicle-mounted heat pump air conditioner unit |
| CN109579229A (en) * | 2018-10-30 | 2019-04-05 | 青岛海信日立空调系统有限公司 | A kind of air conditioner compressor preheating control method and air conditioner |
| CN109539465A (en) * | 2018-11-15 | 2019-03-29 | 珠海格力电器股份有限公司 | Preheating control method and device for compressor, storage medium and air conditioner |
| CN112033045A (en) * | 2020-08-17 | 2020-12-04 | 珠海格力电器股份有限公司 | Control method and device of heating equipment and controller |
| CN112483359A (en) * | 2020-11-23 | 2021-03-12 | 儒竞艾默生环境优化技术（上海）有限公司 | Compressor starting device and method and variable-frequency air conditioner system |
| CN112762624A (en) * | 2021-01-05 | 2021-05-07 | 深圳麦格米特电气股份有限公司 | Hot air blower control method and device, controller, hot air blower and storage medium |
| CN112762624B (en) * | 2021-01-05 | 2022-06-17 | 深圳麦格米特电气股份有限公司 | Hot air blower control method, device, controller, hot air blower and storage medium |
| CN112728725A (en) * | 2021-01-22 | 2021-04-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Control device and method of compressor and air conditioner |
| CN112728725B (en) * | 2021-01-22 | 2022-02-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Control device and method of compressor and air conditioner |
| CN114234375A (en) * | 2021-12-17 | 2022-03-25 | 珠海格力电器股份有限公司 | Compressor preheating control method and device, storage medium and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265148C (en) | 2006-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1265148C (en) | Air conditioner compressor preheating control method | |
| CN1200506C (en) | Starting control method and control apparatus for synchronous motor and its application | |
| CN1293701C (en) | Step failing out detecting apparatus and method for synchronous motor, driving apparatus for motor | |
| CN1042482C (en) | Transforming device and air conditionor using said device | |
| CN1045235C (en) | Neutral point clamped electric power conversion apparatus | |
| CN1232022C (en) | Drive controller, power conversion apparatus and its controlling method and using method | |
| CN1229908C (en) | Driver of three-phase inductive motor and method thereof | |
| CN1282138A (en) | Method and device for braking washing machine | |
| CN1799192A (en) | Pulse width modulation control circuit for multi-mode electrical machine and multimode electrical machine provided with such a control circuit | |
| CN1934785A (en) | Gate driver, motor driving device including the gate driver, and apparatus equipped with the motor driving device | |
| CN1489823A (en) | Motor driver for brushless DC motor | |
| KR102693792B1 (en) | Energy conversion devices and vehicles | |
| CN1542279A (en) | Driver of electric compressor | |
| CN1799189A (en) | Multiphase simultaneous switching preventing circuit, PWM inverter and its driving method | |
| CN1757152A (en) | Power circuit and method of rising output voltage of power circuit | |
| CN1925309A (en) | Motor speed control circuit | |
| CN1748348A (en) | Electric converter for fuel cell | |
| CN1917116A (en) | Servo control device and method for position of moving contact in high voltage breaker | |
| CN1910812A (en) | Electric power converting apparatus | |
| CN1405970A (en) | Drive circuit of actuating device | |
| CN1635310A (en) | Motor compressor controller for air conditioner | |
| CN1107562A (en) | Control device for air conditioner | |
| CN1691469A (en) | Variable speed motor | |
| EP2345757A1 (en) | Drum type washing machine | |
| CN1157843C (en) | Driving controller for exhausting hood motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20110308 |