CN201608690U - Variable-frequency speed-adjusting device of evaporating-type air conditioner - Google Patents
Variable-frequency speed-adjusting device of evaporating-type air conditioner Download PDFInfo
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- CN201608690U CN201608690U CN2010200592317U CN201020059231U CN201608690U CN 201608690 U CN201608690 U CN 201608690U CN 2010200592317 U CN2010200592317 U CN 2010200592317U CN 201020059231 U CN201020059231 U CN 201020059231U CN 201608690 U CN201608690 U CN 201608690U
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- air conditioner
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- vaporation
- bridge inverter
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Abstract
The utility model provides a variable-frequency speed-adjusting device of an evaporating-type air conditioner, which comprises a main control module and a power supply control module, wherein an MCU of the main control module and a communication module of the evaporating-type air conditioner have two-way communication, and the MCU is also connected with the output of a water level detecting module of the evaporating-type air conditioner; the variable-frequency speed-adjusting device also comprises an intelligent power module (IPM) which comprises a full-bridge inverter circuit; the input end of the full-bridge inverter circuit is connected with the output end of the power supply control module; the input end of the full-bridge inverter circuit is also connected with the output end of the MCU; and the output end of the full-bridge inverter circuit is connected with a three-phase alternating-current motor of the evaporating-type air conditioner. The variable-frequency speed-adjusting device realizes stepless speed regulation of the motor, and simultaneously can solve the problems of high heat emission of the motor and higher noise of the air conditioner when in low speed of the stepless speed regulation of the air conditioner in the prior art.
Description
[technical field]
The utility model relates to a kind of vaporation-type air conditioner, particularly a kind of RHVC of vaporation-type air conditioner.
[background technology]
Vaporation-type air conditioner in the environment-friendly air conditioner industry absorbs airborne heat by the steam evaporation, reaches the refrigeration cool-down effect.In different areas, different application occasion, different time period, the humiture difference of environment will reach the humiture value of people to environmental requirement, and the air quantity that air conditioner is sent requires difference, therefore require air conditioner to possess the function of speed governing, to adapt to different environmental requirements.To the noise requirements difference, because air conditioner self, noise is relatively large under varying environment, and therefore the noise to air conditioner has certain restriction.
The speed governing of existing air conditioner mainly contains the step speed regulation of double speed, three speed and the stepless time adjustment of AC chopping.Step speed regulation is to adopt multispeed electric machine to realize, be provided with different gears according to different motors, each gear has fixing rotating speed (fixing air quantity); Adopt the stepless speed regulation of AC wave chopping technology, when motor operated in low speed, loss was big, and heating is big, and efficient is lower, therefore motor properties was required high.Therefore, there is following problem in the speed governing of air conditioner in the environment-friendly air conditioner industry at present: the motor feels hot when low speed in the stepless time adjustment of (1), air conditioner greatly, and speed governing is unsmooth; (2), the noise of air conditioner is bigger than normal.
[utility model content]
The technical problems to be solved in the utility model, be to provide a kind of RHVC of vaporation-type air conditioner, when realizing the electrodeless stepless speed control of motor, it is big that the motor feels hot in the time of can solving in the prior art air conditioner stepless time adjustment low speed, and air conditioner noise problem bigger than normal.
The utility model is by solving the problems of the technologies described above by the following technical solutions: a kind of RHVC of vaporation-type air conditioner, comprise main control module and energy supply control module, the PORT COM of the MCU of described main control module and the communication module both-way communication of vaporation-type air conditioner, described communication module is used to receive control data and output services status data, another PORT COM of this MCU links to each other with the output of the water level detecting module of vaporation-type air conditioner, this MCU also links to each other with each workpiece of vaporation-type air conditioner respectively by control circuit, described workpiece comprises a three phase alternating current motor, wherein, described RHVC also comprises an Intelligent Power Module, this Intelligent Power Module comprises a full bridge inverter, the input of full bridge inverter connects the output of energy supply control module, the input of full bridge inverter also is connected with the output of MCU, and the output of full bridge inverter connects described three phase alternating current motor.
Further, described full bridge inverter is the bridge drive circuit up and down that 6 insulated gate polar form power tubes constitute.
Further, described full bridge inverter is connected with the output of described MCU by an optocoupler.
Further, described Intelligent Power Module also comprises a protection feedback circuit, and the input of described protection feedback circuit connects three phase alternating current motor, and the output of protection feedback circuit is connected to MCU.
Further, described energy supply control module comprises power supply input, interchange input filter circuit, the single-phase not control rectifying circuit that connects successively, the output of this single-phase not control rectifying circuit is connected with the input of described full bridge inverter, and industrial-frequency alternating current is directly introduced in described power supply input.
Further, described interchange input filter circuit comprises fuse, piezo-resistance, the capacitor filtering that connects successively, the input of this fuse connects the output of described industrial-frequency alternating current, and the output of this capacitor filtering is connected to the input of described single-phase not control rectifying circuit.
Further, described workpiece also comprises water pump, pendulum wind-powered electricity generation magnet valve, draining valve, water intaking valve.
The RHVC of the vaporation-type air conditioner that the utility model is realized has following advantage: Intelligent Power Module is applied in the RHVC of vaporation-type air conditioner, this frequency control part changes civil power input into direct current by energy supply control module, full bridge inverter in the use control Intelligent Power Module of the MCU cooperation software of master control, direct current is a three-phase alternating current through inversion behind this full bridge inverter, thereby drive motors, the speed governing of this kind stepless time adjustment mode is level and smooth, and that the motor feels hot can make air conditioner operate in low speed the time is little, save electric energy, prolong motor useful life, and total noise of centrifuge is little.
[description of drawings]
In conjunction with specific embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the system principle diagram of RHVC described in the utility model;
Fig. 2 is the circuit theory diagrams of RHVC described in the utility model;
Fig. 3 is the main program flow chart of the MCU work of RHVC described in the utility model;
Fig. 4 is sinusoidal pulse width modulation (SPWM) the waveform generation flow chart of the MCU work of RHVC described in the utility model.
[embodiment]
Shown in Fig. 1-4, the RHVC of the vaporation-type air conditioner that the utility model is related, comprise main control module and energy supply control module 1, the PORT COM of the single-chip microcomputer 2 of described main control module (being MCU) and communication module 3 both-way communications of vaporation-type air conditioner, described communication module 3 is used to receive control data and output services status data, another PORT COM of this single-chip microcomputer 2 links to each other with the output of the water level detecting module 4 of vaporation-type air conditioner, this single-chip microcomputer 2 also links to each other with each workpiece of vaporation-type air conditioner respectively by control circuit, described workpiece comprises a three phase alternating current motor 5, also comprises water pump, pendulum wind-powered electricity generation magnet valve, draining valve, water intaking valve.Wherein, described RHVC also comprises an Intelligent Power Module 6 (being IPM), Intelligent Power Module 6 comprises a full bridge inverter 61, this full bridge inverter 61 is the bridge drive circuit up and down that 6 insulated gate polar form power tubes (being IGBT) constitute, the input of this full bridge inverter 61 connects the output of energy supply control module 1, this full bridge inverter 61 also is connected with the output of described single-chip microcomputer 2 by an optocoupler 7, and the output of full bridge inverter 61 connects the three phase alternating current motor 5 of vaporation-type air conditioner.Described Intelligent Power Module 6 also comprises a protection feedback circuit 62, and the input of described protection feedback circuit 62 connects three phase alternating current motor 5, and the output of protection feedback circuit 62 is connected to single-chip microcomputer 2.
Described energy supply control module 1 comprises power supply input, interchange input filter circuit, the single-phase not control rectifying circuit that connects successively, the output of this single-phase not control rectifying circuit is connected with the input of described full bridge inverter, industrial-frequency alternating current is directly introduced in described power supply input, described interchange input filter circuit comprises fuse, piezo-resistance, the capacitor filtering (not shown) that connects successively, the input of this fuse connects the output of described industrial-frequency alternating current, and the output of this capacitor filtering is connected to the input of described single-phase not control rectifying circuit.
In conjunction with theory diagram, circuit diagram, the single-chip microcomputer workflow diagram of the RHVC of the described air conditioner shown in Fig. 1-4, operation principle of the present utility model is as follows:
Single-chip microcomputer 2 receives control data from the hand controller in the communication module by serial ports, and returns the status data of current air conditioner as required; In conjunction with the judgement of water level is carried out control corresponding to the different operating parts (motor, water pump, pendulum wind, draining valve, water intaking valve) of air conditioner, reach ventilation refrigeration cool-down effect according to the control data that receives.
Motor variable-frequency speed-regulating partly adopts civil power directly to import, and industrial-frequency alternating current after single-phase not control rectifying circuit becomes direct current, is a three-phase alternating current electric drive motor through the full bridge inverter inversion through piezo-resistance, capacitor filtering, fuse.Full bridge inverter adopts 6 IGBT to constitute bridge drive circuit up and down; this programme adopts IPM; this IPM with IGBT together with its drive circuit and kinds of protect circuit package in same module; simplified design; improved the reliability of whole system; cooperate the use of software; MCU output pulse width modulation (PWM) signal controlling full bridge inverter; sinusoidal pulse width modulation (SPWM) is adopted in this pulse-width modulation, and exactly when advancing pulse-width modulation, the duty ratio that makes pulse train changes according to the rule of sine wave; when sinusoidal wave amplitude is maximum; the width of pulse is also maximum, and when sinusoidal wave amplitude was minimum value, the width of pulse was also minimum.Adopt software mode to produce the SPWM ripple by MCU, overcome the shortcoming of analog element implementation, dwindle the volume of frequency converter with regular sampling.
The RHVC of the air conditioner that the utility model is realized carries out variable frequency regulating speed control to three phase alternating current motor, makes air conditioner reach the advantage that power taking is convenient, noise is little, torque is big, discharge quantity of fan is big. Adopt the Sine Pulse Width Modulation technology that motor is carried out electrodeless stepless speed control, be issued to the effect of cooling humidification in the control of air conditioner single-chip microcomputer, and reduced the noise of air conditioner. Through the checking in experiment and market, this scheme realizes the motor stepless speed control, and it is little that the motor feels hot during low speed, prolonged electrical machinery life, and reduced total noise of centrifuge.
Claims (7)
1. the RHVC of a vaporation-type air conditioner, comprise main control module and energy supply control module, the PORT COM of the MCU of described main control module and the communication module both-way communication of vaporation-type air conditioner, described communication module is used to receive control data and output services status data, another PORT COM of this MCU links to each other with the output of the water level detecting module of vaporation-type air conditioner, this MCU also links to each other with each workpiece of vaporation-type air conditioner respectively by control circuit, described workpiece comprises a three phase alternating current motor, it is characterized in that: described RHVC also comprises an Intelligent Power Module, this Intelligent Power Module comprises a full bridge inverter, the input of full bridge inverter connects the output of energy supply control module, the input of full bridge inverter also is connected with the output of MCU, and the output of full bridge inverter connects described three phase alternating current motor.
2. the RHVC of vaporation-type air conditioner according to claim 1 is characterized in that: described full bridge inverter is the bridge drive circuit up and down that 6 insulated gate polar form power tubes constitute.
3. the RHVC of vaporation-type air conditioner according to claim 1 and 2 is characterized in that: described full bridge inverter is connected with the output of described MCU by an optocoupler.
4. the RHVC of vaporation-type air conditioner according to claim 1 and 2; it is characterized in that: described Intelligent Power Module also comprises a protection feedback circuit; the input of described protection feedback circuit connects three phase alternating current motor, and the output of protection feedback circuit is connected to MCU.
5. the RHVC of vaporation-type air conditioner according to claim 1 and 2, it is characterized in that: described energy supply control module comprises power supply input, interchange input filter circuit, the single-phase not control rectifying circuit that connects successively, the output of this single-phase not control rectifying circuit is connected with the input of described full bridge inverter, and industrial-frequency alternating current is directly introduced in described power supply input.
6. the RHVC of vaporation-type air conditioner according to claim 5, it is characterized in that: described interchange input filter circuit comprises fuse, piezo-resistance, the capacitor filtering that connects successively, the input of this fuse connects the output of described industrial-frequency alternating current, and the output of this capacitor filtering is connected to the input of described single-phase not control rectifying circuit.
7. the RHVC of vaporation-type air conditioner according to claim 1 and 2 is characterized in that: described workpiece also comprises water pump, pendulum wind-powered electricity generation magnet valve, draining valve, water intaking valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200592317U CN201608690U (en) | 2010-01-08 | 2010-01-08 | Variable-frequency speed-adjusting device of evaporating-type air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200592317U CN201608690U (en) | 2010-01-08 | 2010-01-08 | Variable-frequency speed-adjusting device of evaporating-type air conditioner |
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| CN201608690U true CN201608690U (en) | 2010-10-13 |
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| CN2010200592317U Expired - Fee Related CN201608690U (en) | 2010-01-08 | 2010-01-08 | Variable-frequency speed-adjusting device of evaporating-type air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820696A (en) * | 2012-08-01 | 2012-12-12 | 华为技术有限公司 | Temperature control equipment and cabinet of communication equipment |
| CN112398414A (en) * | 2019-08-16 | 2021-02-23 | 泛仕达机电股份有限公司 | Two-phase stepless variable frequency speed regulation control circuit and method for household purifier |
-
2010
- 2010-01-08 CN CN2010200592317U patent/CN201608690U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820696A (en) * | 2012-08-01 | 2012-12-12 | 华为技术有限公司 | Temperature control equipment and cabinet of communication equipment |
| WO2014019345A1 (en) * | 2012-08-01 | 2014-02-06 | 华为技术有限公司 | Temperature-controlled equipment and cabinet for communication equipment |
| CN102820696B (en) * | 2012-08-01 | 2014-04-02 | 华为技术有限公司 | A kind of temperature control equipment and communication equipment cabinet |
| EP2712049A4 (en) * | 2012-08-01 | 2014-07-09 | Huawei Tech Co Ltd | REGULATED TEMPERATURE EQUIPMENT AND BOX FOR COMMUNICATION EQUIPMENT |
| CN112398414A (en) * | 2019-08-16 | 2021-02-23 | 泛仕达机电股份有限公司 | Two-phase stepless variable frequency speed regulation control circuit and method for household purifier |
| CN112398414B (en) * | 2019-08-16 | 2024-06-04 | 泛仕达机电股份有限公司 | Two-phase stepless variable-frequency speed regulation control circuit and method for household purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Variable-frequency speed-adjusting device of evaporating-type air conditioner Effective date of registration: 20131016 Granted publication date: 20101013 Pledgee: Bank of China, Limited by Share Ltd, Fuzhou, Cangshan branch Pledgor: Fujian Jinghui Technology Co., Ltd. Registration number: 2013350000012 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20140108 |