CN2319739Y - Frequency converting air conditioner - Google Patents
Frequency converting air conditioner Download PDFInfo
- Publication number
- CN2319739Y CN2319739Y CN 98226088 CN98226088U CN2319739Y CN 2319739 Y CN2319739 Y CN 2319739Y CN 98226088 CN98226088 CN 98226088 CN 98226088 U CN98226088 U CN 98226088U CN 2319739 Y CN2319739 Y CN 2319739Y
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- phase
- frequency
- control unit
- unit circuit
- frequency converter
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Abstract
The utility model relates to a frequency converting air conditioner with a three-phase machine of 0-220 v line voltage, whose power is provided by a frequency converter, a multi-sectional interface transform circuit provided with no less than two juxtaposed isolated coupling variable-frequency control unit circuits is arranged between a frequency converter and an electric apparatus controller; the unit circuit is composed of an isolating switch and a potentiometer connected with the output end in series; a slide arm end of the potentiometer connected with an isolation diode D in series is served as a voltage signal output end of the isolated coupling variable-frequency control unit circuit. The utility model saves energy more than 30 %, which works in normal under the condition of the v. 120 to 250 volts. The utility model starts without impulse current, has fast refrigerating speed over three times, and uneasy fault.
Description
The utility model relates to a kind of electrical Household appliance.Domestic variable frequency aircondition particularly.
Aircondition of the prior art cooperates intelligent distant control parts and relevant guard block to form by single-phase condenser motor.Its existing problems are: frequent start-stop during work, and intermittent duty, dash current is up to about seven times of operating current.Supply voltage accommodation is little.There are a lot of types when supply voltage is lower than 200V, just can't start.Power consumption is very big, and efficient is also very low.
The purpose of this utility model is at the deficiencies in the prior art, and proposing the single-phase standard frequency converter of a kind of usefulness is that distribution setting, nothing start dash current, supply voltage accommodation is the low-noise energy-saving formula convertible frequency air-conditioner device of single-phase 120-250 volt.
The purpose of this utility model is reached by following technical scheme.Convertible frequency air-conditioner device of the present utility model, comprise the compressor heat exchange cycles device that is provided with appliance controller, blower fan apparatus, be characterized in that the motor that compressor and blower fan adopt is that line voltage is the three-phase alternating-current motor of 0-220 volt, its power supply is provided by the three phase mains of single-phase standard frequency converter output, between single-phase standard frequency converter and appliance controller, the multisection type interface conversion circuit is housed, the multisection type interface conversion circuit constitutes by being no less than two isolation coupling frequency conversion control unit circuit arranged side by side, each isolation coupling frequency conversion control unit circuit is made of with the potentiometer that is contained in the isolating switch output of connecting isolating switch, isolating diode is as the voltage signal output end of isolation coupling frequency conversion control unit circuit in the cursor slide end series connection of potentiometer, and the output of isolating switch is by the DC power supply of voltage stabilizing.Like this, the switch controlling signal that the multisection type interface circuit that is made of side by side each isolation coupling frequency conversion control unit circuit will come from the circuit of appliance controller becomes the different voltage control signal of voltage amplitude, deliver to the frequency instruction control input end AV of single-phase standard frequency converter, thereby reach the rotating speed of multisection type control compressor and blower fan and the purpose of the size that power is exported.The isolating switch of isolation coupling frequency conversion control unit circuit has guaranteed that input, output signal are independent of each other.
Purpose of the present invention can also further reach by following measure.Aforesaid convertible frequency air-conditioner device is characterized in wherein said convertible frequency air-conditioner device, it is characterized in that the isolating switch in the element circuit selects for use the input series connection photo-coupler of current-limiting resistance to be housed or to select relay for use.
Purpose of the present invention can also further reach by following measure.Aforesaid convertible frequency air-conditioner device, be characterized in that line voltage that wherein said compressor and blower fan adopt is to be not more than 220 volts three-phase alternating-current motor to be made up of stator and rotor, the three phase frequency changing power of the near sinusoidal wave frequency of stator order phase standard frequency converter output, voltage, power variable, the phase difference of its three-phase coil winding is that 120 degree evenly distribute, and rotor adopts permanent-magnet material type rotor structure or cage rotor structure.The motor high efficiency of this structure, volume is little, and is in light weight, and cost is low.
The utility model is compared with prior art, and is energy-conservation more than 30%, and supply voltage accommodation is wideer, can be under 120 volts to 250 volts condition operate as normal.Non-impact current during startup, refrigerating speed is fast more than three times, and protection is all controlled by the computer of single-phase standard frequency converter automatically, and is safe and reliable, not easy break-down.
Fig. 1 is the annexation figure of each building block of the utility model.
Fig. 2 contains the schematic diagram of the multisection type interface conversion circuit of isolation coupling frequency conversion control unit circuit for the utility model.
Fig. 3 is the stator of three-phase alternating-current motor of line voltage 0-220 volt and the wiring schematic diagram of rotor.
Fig. 1, Fig. 2, Fig. 3 are an embodiment of the present utility model.Contrast accompanying drawing below, further describe implementer's case of the present utility model, accompanying drawing is the convertible frequency air-conditioner device of present embodiment, comprise the compressor heat exchange cycles device that is provided with appliance controller, blower fan apparatus, it is air-conditioning remote control transmitter and the receiver of remote-control sytem composition of SM6502/SM65133 that appliance controller adopts model, the motor that compressor and blower fan adopt is that line voltage is the three-phase alternating-current motor of 0-220 volt, its power supply is provided by the three phase mains of single-phase standard frequency converter output, between single-phase standard frequency converter and appliance controller, interface conversion circuit is housed, the multisection type interface conversion circuit is made of three isolation coupling frequency conversion control unit circuit arranged side by side, each isolation coupling frequency conversion control unit circuit is made of with the potentiometer W that is contained in isolating switch 1 output that connects isolating switch 1, isolating diode D is as the voltage signal output end of isolation coupling frequency conversion control unit circuit in the cursor slide end series connection of potentiometer, and the positive 10 volts direct current of voltage regulation that the output of isolating switch 1 uses is provided by single-phase standard frequency converter.Isolating switch 1 selects for use the input series connection that the photo-coupler DP of current-limiting resistance R is housed.Wherein, current-limiting resistance R resistance is 200 ohm, and potentiometer W selects 4.7 kilohms potentiometer for use, it is the photo-coupler of 4N25 that photo-coupler DP selects model for use, it is the single-phase standard frequency converter of VFD015A21A that single-phase standard frequency converter adopts model, this frequency converter input single phase poaer supply, output three phase mains.
With each wiring pin of receiver of remote-control sytem output signal respectively with the input F1 of multisection type interface conversion circuit, F2, the F3 interface connects, during any wiring pin output signal of receiver of remote-control sytem, the isolation coupling frequency conversion control unit circuit working corresponding with it, the input of isolation coupling frequency conversion control unit circuit gets, connect positive 10 volts of power supplys by photo-coupler DP, the Interface Terminal ACM of potentiometer W receives on the single-phase standard frequency converter corresponding port, and the cursor slide end of potentiometer W is received the electric voltage frequency instruction input of single-phase standard frequency converter by the AV Interface Terminal of isolating diode D.Reach the desired value of voltage signal by the position of adjusting potentiometer W cursor slide, its voltage signal values is directly proportional with single-phase standard frequency converter output frequency and power output.Present embodiment has used three isolation coupling frequency conversion control unit circuit, obtains the voltage signal of multisection type operation by the cursor slide of adjusting each potentiometer W.When the F1 terminal gets when electric, the AV1 terminal can be exported 3.7 volts d. c. voltage signal, and single-phase standard frequency converter phase difference output is that the near sinusoidal wave frequencies of 120 degree are 30 hertz three-phase alternating current.When the F2 terminal gets when electric, the AV2 terminal can be exported 5.4 volts d. c. voltage signal, and single-phase standard frequency converter phase difference output is that the near sinusoidal wave frequencies of 120 degree are 45 hertz three-phase alternating current.When the F3 terminal gets when electric), the AV3 terminal can be exported 7.35 volts d. c. voltage signal, and single-phase standard frequency converter phase difference output is that the near sinusoidal wave frequencies of 120 degree are 60 hertz three-phase alternating current.The line voltage that compressor and blower fan adopt is that the three-phase alternating-current motor of 0-220 volt is made up of stator 2 and rotor 3, the three phase frequency changing power of the near sinusoidal wave frequency of stator 2 order phase standard frequency converters output, voltage, power variable, the phase difference of its three-phase coil winding is that 120 degree evenly distribute, and rotor 3 adopts permanent-magnet material type rotor structure.Be on the stator winding output U, the V that are connected on single-phase standard frequency converter, the W terminal, the three-phase phase of the near sinusoidal ripple of sending here with this three end differs from the variation of the frequency conversion voltages of 120 degree, deposit the rotating excitation field that produces a respective change speed in the stator 2, the rotor 3 of this rotating excitation field and permanent magnetism interacts, rotor 3 just can be along with the rotating excitation field of stator 2 be rotated together, so power factor is near 100%.Rotor adopts the ndfeb magnetic material of high-coercive force, does not need the electric energy excitation, can be than ordinary ac asynchronous motor power saving more than 10%.Compressor and fan electromotor all are this kind structure, and their rotating speed and power all change with the variation of U, V, W three-phase electric energy frequency.After tested, the transducer air conditioning of present embodiment is compared with existing general air-conditioner, can be energy-conservation 33%, and supply voltage accommodation is wideer, can be in 120V operate as normal under the condition of 250V.Start non-impact current, fast 3.2 times of refrigerating speed, protection is all controlled by the computer of intelligent frequency convertor automatically, and is safe and reliable, not easy break-down.
Claims (3)
1, a kind of convertible frequency air-conditioner device, comprise the compressor heat exchange cycles device that is provided with appliance controller, blower fan apparatus, it is characterized in that the motor that compressor and blower fan adopt is that line voltage is the three-phase alternating-current motor of 0-220 volt, its power supply is provided by the three phase mains of single-phase standard frequency converter output, between single-phase standard frequency converter and appliance controller, the multisection type interface conversion circuit is housed, the multisection type interface conversion circuit constitutes by being no less than two isolation coupling frequency conversion control unit circuit arranged side by side, each isolation coupling frequency conversion control unit circuit is made of with the potentiometer (W) that is contained in isolating switch (1) output of connecting isolating switch (1), isolating diode (D) is as the voltage signal output end (AV) of isolation coupling frequency conversion control unit circuit in the cursor slide end series connection of potentiometer (W), and the output of isolating switch (1) is by the DC power supply of voltage stabilizing.
2, convertible frequency air-conditioner device according to claim 1 is characterized in that the isolating switch (1) in the isolation coupling frequency conversion control unit circuit selects for use the input series connection photo-coupler (DP) of current-limiting resistance (R) to be housed or to select relay for use.
3, convertible frequency air-conditioner device according to claim 1, it is characterized in that the line voltage that compressor and blower fan adopt is that the three-phase alternating-current motor that 0-220 lies prostrate is made up of stator (2) and rotor (3), the three phase frequency changing power of the near sinusoidal wave frequency of stator (2) order phase standard frequency converter output, voltage, power variable, the phase difference of its three-phase coil winding is that 120 degree evenly distribute, and rotor (3) adopts permanent-magnet material type rotor structure or cage rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98226088 CN2319739Y (en) | 1998-03-02 | 1998-03-02 | Frequency converting air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98226088 CN2319739Y (en) | 1998-03-02 | 1998-03-02 | Frequency converting air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319739Y true CN2319739Y (en) | 1999-05-19 |
Family
ID=33976659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98226088 Expired - Fee Related CN2319739Y (en) | 1998-03-02 | 1998-03-02 | Frequency converting air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319739Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489218A (en) * | 2018-11-23 | 2019-03-19 | 珠海格力电器股份有限公司 | Compressor control method, system and VRF Air Conditioning System |
| CN111156748A (en) * | 2019-12-25 | 2020-05-15 | 珠海格力电器股份有限公司 | Variable frequency air conditioner limiting power control method, storage medium and air conditioner |
-
1998
- 1998-03-02 CN CN 98226088 patent/CN2319739Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489218A (en) * | 2018-11-23 | 2019-03-19 | 珠海格力电器股份有限公司 | Compressor control method, system and VRF Air Conditioning System |
| CN109489218B (en) * | 2018-11-23 | 2020-11-03 | 珠海格力电器股份有限公司 | Compressor control method and system and multi-connected air conditioning unit |
| CN111156748A (en) * | 2019-12-25 | 2020-05-15 | 珠海格力电器股份有限公司 | Variable frequency air conditioner limiting power control method, storage medium and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |