CN102748834B - HVAC (heating ventilation and air conditioning) control system of household central air conditioner - Google Patents
HVAC (heating ventilation and air conditioning) control system of household central air conditioner Download PDFInfo
- Publication number
- CN102748834B CN102748834B CN201210254503.2A CN201210254503A CN102748834B CN 102748834 B CN102748834 B CN 102748834B CN 201210254503 A CN201210254503 A CN 201210254503A CN 102748834 B CN102748834 B CN 102748834B
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- motor
- hvac
- electric machine
- permagnetic synchronous
- machine controller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/04—Arrangements for controlling or regulating the speed or torque of more than one motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to an HVAC (heating ventilation and air conditioning) control system of a household central air conditioner, comprising an HVAC system controller, a centrifugal blower motor, a compressor motor, and an axial fan motor, wherein the HVAC system controller comprises an HVAC microprocessor, a sensor, a motor control interface unit and a power supply portion; the power supply portion is used to supply power for circuits of various parts; the sensor transmits a detection signal to the HVAC microprocessor through a signal processing circuit, wherein at least one of the centrifugal blower motor, the compressor motor and the axial fan motor is a permanent magnet synchronous motor without a motor controller; the motor control interface unit comprises an inverter unit and a rotor position detecting unit; the HVAC microprocessor drives the permanent magnet synchronous motor without the motor controller through the inverter unit; the rotor position detecting unit transmits a rotor position signal of the permanent magnet synchronous motor without the motor controller to the HVAC microprocessor to process. According to the invention, overlapped circuit configuration is removed, circuit structures are simplified, product cost is reduced greatly, and resource waste is reduced.
Description
Technical field:
The present invention relates to a kind of HVAC control system of residential central air conditioning.
Background technology:
Compressor, condenser, evaporimeter, throttling arrangement, air blast being installed concentratedly a housings of a kind of residential central air conditioning, form an independently unit for perfect in shape and function, its control structure as shown in Figure 1, comprise HVAC system controller, cfentrifugal blower motor, compressor electric motor, axial fan motor and combustion gas id-motor, four motors of HVAC system controller control, thermostat HERMOSTAT sets up and communicates by letter with HVAC system controller.
In recent years, along with appliance field competition, product technology is required to improve constantly, as required, the intelligent degree of product energy-conserving and environment-protective, controllability is high, the construction cycle is short, noise is little etc.As core component---motor, become undoubtedly the critical component solving the problems of the technologies described above, cfentrifugal blower motor, the compressor electric motor of traditional residential central air conditioning the inside adopt load motor PSC, load motor, efficiency is low, relatively power consumption, noise is also large, and controllability degree of intelligence is low.
Along with the development of motor technology, there is permagnetic synchronous motor, this kind of motor must be with electric machine controller, utilize electric machine controller to realize the object of the electronic commutation of electric current, so also someone is called for short ECM motor (electronically commutated motor) in industry, permagnetic synchronous motor has energy-conserving and environment-protective, reliability and controllability are all higher, noise is little, easily realize the features such as intelligent, can solve the deficiency of alternating current generator, therefore, existing residential central air conditioning the inside cfentrifugal blower motor, compressor electric motor has had employing permagnetic synchronous motor, as shown in Figure 2, HVAC microprocessor is connected with electric machine controller by Electric Machine Control interface unit, figure Axial-Flow fan electromotor is alternating current generator, do not configure electric machine controller, in existing technical scheme, cfentrifugal blower motor, compressor electric motor is all with electric machine controller independently, each electric machine controller arranges power unit, microprocessor, inverter circuit and motor operating parameter detecting unit, therefore cause whole control section circuit overlay configuration, complex structure, can not make full use of the hardware and software resource of HVAC system controller the inside, certainly will cause the increase greatly of product cost and the waste of resource.In addition, electric machine controller is because arrangement space is limited, and heat radiation becomes comparatively stubborn problem.
Summary of the invention:
An object of the present invention is to provide a kind of HVAC control system of residential central air conditioning, it adopts the permagnetic synchronous motor without electric machine controller, the inversion unit of permagnetic synchronous motor and rotor position detection unit are integrated in to HVAC system controller the inside, utilize the cooperation control of HVAC microprocessor and inversion unit, rotor position detection unit without the permagnetic synchronous motor of electric machine controller, delete overlapping Circnit Layout, simplify circuit structure, greatly reduce product cost, reduce the wasting of resources.
The object of the invention is to be achieved by following technical proposals:
A kind of HVAC control system of residential central air conditioning, comprise HVAC system controller, cfentrifugal blower motor, compressor electric motor, axial fan motor, wherein HVAC system controller comprises HVAC microprocessor, sensor, Electric Machine Control interface unit and power unit, power unit is each several part circuit supply, sensor is delivered to HVAC microprocessor by detection signal by signal processing circuit, cfentrifugal blower motor, compressor electric motor, in axial fan motor, at least one motor is the permagnetic synchronous motor without electric machine controller, Electric Machine Control interface unit comprises inversion unit and rotor position detection unit, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit.
Cfentrifugal blower motor is the permagnetic synchronous motor without electric machine controller, and compressor electric motor, axial fan motor are alternating current generator.
Compressor electric motor described above is the permagnetic synchronous motor without electric machine controller, and cfentrifugal blower motor, axial fan motor are alternating current generator.
Axial fan motor described above is the permagnetic synchronous motor without electric machine controller, and compressor electric motor, cfentrifugal blower motor are alternating current generator.
Cfentrifugal blower motor, compressor electric motor described above are the permagnetic synchronous motor without electric machine controller, and axial fan motor is alternating current generator.
Cfentrifugal blower motor, axial fan motor described above are the permagnetic synchronous motor without electric machine controller, and compressor electric motor is alternating current generator.
Compressor electric motor, axial fan motor described above are the permagnetic synchronous motor without electric machine controller, and cfentrifugal blower motor is alternating current generator.
Cfentrifugal blower motor, axial fan motor, compressor electric motor described above are the permagnetic synchronous motor without electric machine controller.
HVAC system controller described above also connects a combustion gas id-motor, and combustion gas id-motor is alternating current generator or the permagnetic synchronous motor without electric machine controller.
Rotor position detection unit described above is phase current testing circuit.
Electric Machine Control interface unit described above also comprises at least one road relay and drive circuit thereof, and HVAC microprocessor connects alternating current generator by relay and drive circuit thereof.
The present invention compared with prior art tool has the following advantages: 1) HVAC system controller comprises HVAC microprocessor, Electric Machine Control interface unit and power unit, power unit is each several part circuit supply, cfentrifugal blower motor, compressor electric motor, in axial fan motor, at least one motor is the permagnetic synchronous motor without electric machine controller, Electric Machine Control interface unit comprises inversion unit and rotor position detection unit, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, it only needs a power unit power supply, omit the setting of original each electric machine controller separate configurations power supply, simplify circuit structure, the inversion unit of permagnetic synchronous motor and rotor position detection unit are integrated in to HVAC system controller the inside, utilize HVAC microprocessor and inversion unit, the cooperation control of rotor position detection unit is without the permagnetic synchronous motor of electric machine controller, delete overlapping Circnit Layout, utilize HVAC microprocessor to replace the microprocessor of original electric machine controller, simplify circuit structure, greatly reduce product cost, reduce the wasting of resources, the radiating condition of HVAC system controller is better, solve original electric machine controller weak heat-dissipating and cause controlling instability problem, 2) in cfentrifugal blower motor, compressor electric motor, axial fan motor, at least two motors are the permagnetic synchronous motor without electric machine controller, or three is all the permagnetic synchronous motor adopting without electric machine controller, can increase energy-conservation effect, circuit structure is also simple, low cost of manufacture, can finely meet customer need, 3) rotor position detection unit is phase current testing circuit, utilizes phase current can calculate the position of rotor and can pass through vector controlled, makes circuit and connection more simple and reliable, saves cost.4) HVAC system controller also connects a combustion gas id-motor, and combustion gas id-motor, without the permagnetic synchronous motor of electric machine controller, can increase energy-conservation effect, and circuit structure is also simple, and low cost of manufacture can finely be met customer need.
Brief description of the drawings:
Fig. 1 is the control principle schematic diagram of traditional residential central air conditioning.
Fig. 2 is the concrete block diagram that Fig. 1 is corresponding.
Fig. 3 is the circuit block diagram of HVAC system controller of the present invention.
Fig. 4 is that the first of Fig. 3 is specifically implemented structure chart;
Fig. 5 is the circuit diagram of inversion unit of the present invention and rotor position detection unit.
Fig. 6 is that the second of Fig. 3 is specifically implemented structure chart;
Fig. 7 is the third concrete structure chart of implementing of Fig. 3;
Fig. 8 is the concrete structure chart of implementing of the 4th kind of Fig. 3;
Fig. 9 is the concrete structure chart of implementing of the 5th kind of Fig. 3;
Figure 10 is the concrete structure chart of implementing of the 6th kind of Fig. 3;
Figure 11 is the concrete structure chart of implementing of the 7th kind of Fig. 3;
Figure 12 is the concrete structure chart of implementing of the 8th kind of Fig. 3;
Figure 13 is the concrete structure chart of implementing of the 9th kind of Fig. 3.
Detailed description of the invention:
Below by specific embodiment, also the present invention is described in further detail by reference to the accompanying drawings.
Embodiment mono-: Fig. 3, shown in Fig. 4, a kind of HVAC control system of residential central air conditioning, comprises HVAC system controller, cfentrifugal blower motor, compressor electric motor, axial fan motor, wherein HVAC system controller comprises HVAC microprocessor, internal sensor, external sensor, holder, signal processing circuit, user interface, Electric Machine Control interface unit and power unit, power unit is each several part circuit supply, internal sensor, external sensor is delivered to HVAC microprocessor by detection signal by signal processing circuit, and compressor electric motor adopts the permagnetic synchronous motor without electric machine controller, cfentrifugal blower motor, axial fan motor is alternating current generator, and Electric Machine Control interface unit comprises inversion unit, the relay on rotor position detection unit and 2 tunnels and drive circuit thereof, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, thermostat THERMOSTAT is set up and communicates by letter with HVAC microprocessor by user interface, and HVAC microprocessor is by relay and the drive circuit control cfentrifugal blower motor thereof on 2 tunnels, axial fan motor.
As shown in Figure 5, permagnetic synchronous motor without electric machine controller of the present invention is by the control of HVAC microprocessor, rotor position detection unit is phase current detecting unit, phase current detecting unit mainly comprises resistance R 20, adopt the mode of the vector controlled of position-sensor-free, only detect the phase current of motor winding and calculate rotor-position, utilize multiple IGBT switch Q1 of inverter circuit (INVERTER), Q2, Q3, Q4, Q5, Q6 controls motor winding current, circuit structure is simple, measuring-signal is few, connect simple, simplify circuit structure, further reduce costs.
Embodiment bis-: shown in Fig. 6, be with the difference of embodiment mono-: cfentrifugal blower motor adopts the permagnetic synchronous motor without electric machine controller, compressor electric motor, axial fan motor is alternating current generator, Electric Machine Control interface unit comprises inversion unit, the relay on rotor position detection unit and 2 tunnels and drive circuit thereof, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control compressor electric motor thereof on 2 tunnels, axial fan motor.
Embodiment tri-: shown in Fig. 7, be with the difference of embodiment mono-: axial fan motor adopts the permagnetic synchronous motor without electric machine controller, compressor electric motor, cfentrifugal blower motor is alternating current generator, Electric Machine Control interface unit comprises inversion unit, the relay on rotor position detection unit and 2 tunnels and drive circuit thereof, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control compressor electric motor thereof on 2 tunnels, cfentrifugal blower motor.
Embodiment tetra-: shown in Fig. 8, be with the difference of embodiment mono-: compressor electric motor, cfentrifugal blower motor adopts the permagnetic synchronous motor without electric machine controller, axial fan motor is alternating current generator, Electric Machine Control interface unit comprises the independently inversion unit on road of 2 tunnels, 2 tunnels are relay and the drive circuit thereof on rotor position detection unit and 1 tunnel independently, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control axial fan motor thereof on 1 tunnel.
Embodiment five: shown in Fig. 9, be with the difference of embodiment mono-: axial fan motor, cfentrifugal blower motor adopts the permagnetic synchronous motor without electric machine controller, compressor electric motor is alternating current generator, Electric Machine Control interface unit comprises the independently inversion unit on road of 2 tunnels, 2 tunnels are relay and the drive circuit thereof on rotor position detection unit and 1 tunnel independently, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control compressor electric motor thereof on 1 tunnel.
Embodiment six: shown in Figure 10, be with the difference of embodiment mono-: axial fan motor, compressor electric motor adopts the permagnetic synchronous motor without electric machine controller, cfentrifugal blower motor is alternating current generator, Electric Machine Control interface unit comprises the independently inversion unit on road of 2 tunnels, 2 tunnels are relay and the drive circuit thereof on rotor position detection unit and 1 tunnel independently, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control cfentrifugal blower motor thereof on 1 tunnel.
Embodiment seven: shown in Figure 11, be with the difference of embodiment six: axial fan motor, compressor electric motor, cfentrifugal blower motor all adopt the permagnetic synchronous motor without electric machine controller, Electric Machine Control interface unit comprises independently inversion unit and the independently rotor position detection unit of 3 tunnels on road of 3 tunnels, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, and the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit.
Embodiment eight: shown in Figure 12, be with the difference of embodiment seven: HVAC system controller is except being connected cfentrifugal blower motor, compressor electric motor and axial fan motor, HVAC system controller also connects a combustion gas id-motor, cfentrifugal blower motor, compressor electric motor, axial fan motor and combustion gas id-motor are all the permagnetic synchronous motor without electric machine controller, Electric Machine Control interface unit comprises independently inversion unit and the independently rotor position detection unit of 4 tunnels on road of 4 tunnels, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit.
Embodiment nine: shown in Figure 12, be with the difference of embodiment seven: HVAC system controller is except being connected cfentrifugal blower motor, compressor electric motor and axial fan motor, HVAC system controller also connects a combustion gas id-motor, cfentrifugal blower motor, compressor electric motor and axial fan motor are all the permagnetic synchronous motor without electric machine controller, combustion gas id-motor is alternating current generator, Electric Machine Control interface unit comprises the independently inversion unit on road of 3 tunnels, 3 tunnels are rotor position detection unit and No. 1 relay and drive circuit thereof independently, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit, HVAC microprocessor is by relay and the drive circuit control combustion gas id-motor thereof on 1 tunnel.
The present invention uses in residential central air conditioning integrated machine system or interior machine and the residential central air conditioning split air conditioner system of outer machine in the conventional distance scope of (below 25 meters).
Above-described embodiment is preferred embodiments of the present invention; but embodiments of the present invention are not limited to this; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (11)
1. the HVAC control system of a residential central air conditioning, comprise HVAC system controller, cfentrifugal blower motor, compressor electric motor, axial fan motor, wherein HVAC system controller comprises HVAC microprocessor, sensor, Electric Machine Control interface unit and power unit, power unit is each several part circuit supply, sensor is delivered to HVAC microprocessor by detection signal by signal processing circuit, it is characterized in that: cfentrifugal blower motor, compressor electric motor, in axial fan motor, at least one motor is the permagnetic synchronous motor without electric machine controller, Electric Machine Control interface unit comprises inversion unit and rotor position detection unit, HVAC microprocessor drives the permagnetic synchronous motor without electric machine controller by inversion unit, the rotor-position signal of the permagnetic synchronous motor without electric machine controller is delivered to HVAC microprocessor processes by rotor position detection unit.
2. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: cfentrifugal blower motor is the permagnetic synchronous motor without electric machine controller, and compressor electric motor, axial fan motor are alternating current generator.
3. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: compressor electric motor is the permagnetic synchronous motor without electric machine controller, and cfentrifugal blower, axial fan motor are alternating current generator.
4. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: axial fan motor is the permagnetic synchronous motor without electric machine controller, and compressor electric motor, cfentrifugal blower are alternating current generator.
5. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: cfentrifugal blower motor, compressor electric motor are the permagnetic synchronous motor without electric machine controller, and axial fan motor is alternating current generator.
6. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: cfentrifugal blower motor, axial fan motor are the permagnetic synchronous motor without electric machine controller, and compressor electric motor is alternating current generator.
7. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: compressor electric motor, axial fan motor are the permagnetic synchronous motor without electric machine controller, and cfentrifugal blower motor is alternating current generator.
8. the HVAC control system of a kind of residential central air conditioning according to claim 1, is characterized in that: cfentrifugal blower motor, axial fan motor, compressor electric motor are the permagnetic synchronous motor without electric machine controller.
9. according to the HVAC control system of a kind of residential central air conditioning described in any one in claim 1 to 8, it is characterized in that: HVAC system controller also connects a combustion gas id-motor, combustion gas id-motor is alternating current generator or the permagnetic synchronous motor without electric machine controller.
According in claim 1 to 8 described in any one a kind of HVAC control system of residential central air conditioning, it is characterized in that: rotor position detection unit is phase current testing circuit.
11. according in claim 1 to 7 described in any one a kind of HVAC control system of residential central air conditioning, it is characterized in that: Electric Machine Control interface unit also comprises at least one road relay and drive circuit thereof, HVAC microprocessor connects alternating current generator by relay and drive circuit thereof.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210254503.2A CN102748834B (en) | 2012-07-21 | 2012-07-21 | HVAC (heating ventilation and air conditioning) control system of household central air conditioner |
| PCT/CN2013/073182 WO2014015678A1 (en) | 2012-07-21 | 2013-03-26 | Hvac control system of household central air conditioner |
| US14/334,638 US10234165B2 (en) | 2012-07-21 | 2014-07-17 | HVAC control system for household central air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210254503.2A CN102748834B (en) | 2012-07-21 | 2012-07-21 | HVAC (heating ventilation and air conditioning) control system of household central air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102748834A CN102748834A (en) | 2012-10-24 |
| CN102748834B true CN102748834B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210254503.2A Active CN102748834B (en) | 2012-07-21 | 2012-07-21 | HVAC (heating ventilation and air conditioning) control system of household central air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102748834B (en) |
| WO (1) | WO2014015678A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748834B (en) * | 2012-07-21 | 2014-08-13 | 中山大洋电机股份有限公司 | HVAC (heating ventilation and air conditioning) control system of household central air conditioner |
| US10234165B2 (en) | 2012-07-21 | 2019-03-19 | Zhongshan Broad-Ocean Motor Co., Ltd. | HVAC control system for household central air conditioning |
| CN104917347B (en) * | 2014-03-13 | 2017-10-17 | 中山大洋电机股份有限公司 | A kind of ECM motors and its HVAC system of application |
| CN105737325B (en) * | 2014-12-11 | 2018-10-26 | 中山大洋电机股份有限公司 | A kind of single machine air-conditioning system and two-shipper air-conditioning system |
| CN105299854B (en) * | 2015-11-11 | 2019-09-27 | 珠海格力电器股份有限公司 | The driving device and multi-online air-conditioning system of multi-online air-conditioning system |
| CN108288929A (en) * | 2018-04-17 | 2018-07-17 | 中山大洋电机股份有限公司 | The air-conditioner control system in its hotel of the conversion circuit plate and application of BLDC motors |
| CN114151936A (en) * | 2020-09-07 | 2022-03-08 | 中山大洋电机股份有限公司 | HVAC system control unit and HVAC system |
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| CN1266428C (en) * | 2002-04-29 | 2006-07-26 | 上海日立电器有限公司 | Digital direct-current variable frequency air conditioner controller |
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| CN101464032B (en) * | 2007-12-20 | 2011-04-06 | 珠海格力电器股份有限公司 | Sine DC variable frequency air conditioner controller and its control method |
| JP2010259132A (en) * | 2009-04-21 | 2010-11-11 | Panasonic Corp | Motor drive device and air conditioner equipped with the same |
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| CN102400899A (en) * | 2010-09-13 | 2012-04-04 | 海尔集团公司 | Control device and control method of air conditioner compressor and variable-frequency air conditioner |
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| CN1373550A (en) * | 2001-02-28 | 2002-10-09 | 株式会社日立制作所 | Air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102748834A (en) | 2012-10-24 |
| WO2014015678A1 (en) | 2014-01-30 |
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