CN210007640U - air conditioner frequency conversion regulating circuit - Google Patents
air conditioner frequency conversion regulating circuit Download PDFInfo
- Publication number
- CN210007640U CN210007640U CN201921270901.7U CN201921270901U CN210007640U CN 210007640 U CN210007640 U CN 210007640U CN 201921270901 U CN201921270901 U CN 201921270901U CN 210007640 U CN210007640 U CN 210007640U
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- air conditioner
- controller
- converter
- air
- regulating circuit
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Abstract
The utility model discloses an air conditioner frequency conversion regulating circuit, including converter, series connection switch module between converter input terminal and three phase current, be connected with the converter and be used for control the controller of converter work and set up wind speed detector and the temperature sensor on air conditioner air outlet, the output terminal of converter is connected with air compressor's motor or fan motor, wind speed detector and temperature sensor all are connected with the controller the utility model discloses a set up converter and controller, not only realized the variable frequency control to the fixed frequency compressor's of each air conditioner motor to make the operating condition of fixed frequency compressor accord with indoor real-time refrigeration demand, avoided the full speed function of the motor during operation of fixed frequency compressor, and starting current also needn't be very big, reached energy-conserving purpose.
Description
Technical Field
The utility model relates to an air conditioner frequency conversion control technical field, concretely relates to kinds of air conditioner frequency conversion regulating circuit.
Background
The air conditioner is an indispensable important household appliances in a household at present, a plurality of fixed-frequency air compressors and fixed-frequency fans are arranged in the air conditioner, a three-phase asynchronous fixed-frequency alternating current motor is a core component of the existing fixed-frequency air compressor, the working mode of the air conditioner is that the air conditioner stops and works in two states (namely two working states of 0% and 100%), as long as 1% of refrigeration requirement exists, a motor of the fixed-frequency air compressor works in a 100% working state, the working mode of the fixed-frequency compressor motor has the defects that 1) the fixed-frequency compressor motor works in a full-speed state for a long time and consumes more energy, 2) the compressor is frequently started and stopped to reduce the service life of the compressor, and 3) when the compressor is frequently started, the starting current is large, the energy consumption is large during starting, and great energy waste exists.
The disadvantages of the working mode of the fixed frequency fan motor are as follows: 1) the fixed-frequency fan motor is a three-phase asynchronous fixed-frequency alternating current motor, the working mode is a working state of full-speed operation within 24 hours and 365 days, even if an air conditioner compressor does not work, and when no refrigeration requirement exists, the fan is also kept in a 100% full-speed working state, and the fan runs at full speed for a long time, so that the energy consumption is high; 2) the air quantity output by the fan cannot change along with the working state of the compressor, and the air quantity configuration is not accurate.
Therefore, kinds of external circuits are needed to perform frequency conversion control on the existing fixed-frequency air compressor, so that the fixed-frequency compressor can perform frequency conversion operation, and the performance of the fixed-frequency air conditioner is improved.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides an kinds of air conditioner frequency conversion regulating circuit for air compressor and the fan of deciding frequently carry out frequency conversion control to deciding of current air conditioner frequently, with the energy saving, the extension is decided frequently air compressor and is decided the life of fan frequently.
The utility model discloses an above-mentioned technical problem is solved to following technical means:
air conditioner frequency conversion regulating circuit, including the converter, establish ties at the switch module between converter input terminal and three phase current, be connected with the converter and be used for control the controller of converter work and wind speed detector and the temperature sensor of setting on air-conditioning outlet, the output terminal of converter is connected with air compressor's motor or fan motor, wind speed detector and temperature sensor all are connected with the controller.
, DI3, DI4 and DI5 terminals of the frequency converter are connected with power terminals of the frequency converter, intermediate relays are respectively connected in series between the DI3, DI4 and DI5 terminals of the frequency converter and the power terminals of the frequency converter, and control ends of the intermediate relays are connected with the controller.
And , the controller is a PLC.
And , the wind speed detector and the temperature sensor are both connected with the controller through a COM2 serial communication port.
And , arranging a key board on the controller, wherein the key board is electrically connected with the CPU of the controller.
And , the CPU model of the PLC is CPU SR 20.
Further , the switch module is a three-phase circuit breaker for preventing overloading of a circuit.
And , the type of the frequency converter is an ACS800-01-0100-3 frequency converter.
And , the signal of the wind speed detector is GM8902 digital anemometer.
The beneficial effects of the utility model are embodied in:
(1) the frequency conversion control of the motor of the fixed-frequency compressor of each air conditioner is realized by arranging the frequency converter and the controller, so that the working state of the fixed-frequency compressor meets the indoor real-time refrigeration requirement, the full-speed operation of the motor of the fixed-frequency compressor during working is avoided, the starting current is not required to be large, and the purpose of energy conservation is achieved;
(2) the air outlet of the air conditioner is provided with the two feedback devices of the air speed detector and the temperature sensor, so that the working state of the air conditioner is fed back to the controller in real time, and the controller can more accurately adjust the working state of the air conditioner in real time according to the current working state of the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the prior art, reference will now be made briefly to the drawings which are needed in the description of the embodiments or the prior art.
Fig. 1 is a schematic diagram of a system structure of a frequency conversion regulating circuit of air conditioners provided by an embodiment of the present invention;
fig. 2 is a peripheral circuit diagram of a frequency converter of the frequency conversion regulating circuit of air conditioners provided by the embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1, the utility model discloses a air conditioner frequency conversion regulating circuit, including the converter, establish ties the switch module between converter input terminal and three-phase power, be connected with the converter and be used for controlling the controller of converter work, and set up wind speed detector (not shown in fig. 2) and the temperature sensor (not shown in fig. 2) on the air-conditioning air outlet, the output terminal of converter is connected with air compressor's motor or fan motor, wind speed detector and temperature sensor all are connected with the controller, wind speed detector and temperature sensor are used for gathering the current air-out speed of air conditioner and indoor temperature, and transmit the analog signal who gathers to the controller after converting into digital electric signal, the controller is according to received wind speed signal and temperature signal, output control signal to the converter, the converter starts work, to the power of the motor of inputing to air compressor or the power supply frequency conversion processing of inputing to fan motor to specifically to fig. 2, fig. 2 shows the circuit connection schematic diagram that carries out frequency conversion control to four motors, four motors are the third motor M2 and the independent motor M4625 that can be seen respectively with four independent motors that the converter is connected with the converter control output.
Specifically, as shown in fig. 2, the DI3, DI4 and DI5 terminals of each frequency converter are connected to the power terminals of the frequency converter, intermediate relays are respectively connected in series between the DI3, DI4 and DI5 terminals of the frequency converter and the power terminals of the frequency converter, such as KA1, KA2 and KA3 on the th frequency converter in fig. 2, and the control ends of the intermediate relays KA1, KA2 and KA3 are connected to the controller.
Specifically, the controller in this embodiment is a PLC, the operating voltage is 24V, the controller is connected to a 220V circuit through transformer circuits to operate, and the wind speed detector and the temperature sensor are both connected to the controller through a COM2 serial communication port.
The controller is provided with a key board, the key board is connected with a CPU (central processing unit) of the controller through an electric signal, and the CPU type of the PLC is CPU SR 20. The key board is used for inputting a wind speed reference interval and a temperature reference interval in the controller, and when the working environment temperature of the air conditioner and the wind speed of the outlet air are in the corresponding intervals, the controller controls the corresponding frequency converter according to a preset program, so that the purpose of controlling the frequency conversion work of the motor is achieved.
Specifically, the switch module is a three-phase circuit breaker used for preventing circuit overload, and the three-phase circuit breaker is automatically disconnected when the circuit is overloaded, so that the circuit is prevented from being burnt, and the circuit is protected. And when the motors are required to work in a working state of full-speed fixed-frequency operation, the three-phase circuit breaker can be manually disconnected, so that the motors can be directly connected with the original fixed-frequency power circuit.
Specifically, the type of the frequency converter in this embodiment is an ACS800-01-0100-3 frequency converter, and the signal of the wind speed detector is a GM8902 digital anemometer.
In conclusion, the air conditioner frequency conversion regulating circuit realizes the frequency conversion control of the motor of the fixed-frequency compressor of each air conditioner by arranging the frequency converter and the controller, so that the working state of the fixed-frequency compressor meets the indoor real-time refrigeration requirement, the full-speed operation of the motor of the fixed-frequency compressor during working is avoided, the starting current is not required to be large, and the purpose of energy conservation is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (9)
- The air conditioner frequency conversion regulating circuit is characterized by comprising a frequency converter, a switch module, a controller, an air speed detector and a temperature sensor, wherein the switch module is connected between an input terminal of the frequency converter and a three-phase power supply in series, the controller is connected with the frequency converter and is used for controlling the frequency converter to work, the air speed detector and the temperature sensor are arranged on an air outlet of an air conditioner, an output terminal of the frequency converter is connected with a motor or a fan motor of an air compressor, and the air speed detector and the temperature sensor are both connected with the controller.
- 2. The air conditioner frequency conversion regulating circuit of claim 1, wherein the DI3, DI4 and DI5 terminals of the frequency converter are connected with the power supply terminals of the frequency converter, intermediate relays are respectively connected in series between the DI3, DI4 and DI5 terminals of the frequency converter and the power supply terminals of the frequency converter, and the control ends of the intermediate relays are connected with the controller.
- 3. The kinds of air conditioner frequency conversion regulating circuit of claim 1, wherein the controller is a PLC.
- 4. The air-conditioner frequency conversion regulating circuit of claim 3, wherein the wind speed detector and the temperature sensor are both connected with the controller through a COM2 serial communication port.
- 5. The kinds of air conditioner frequency conversion regulating circuit of claim 3, wherein the controller is provided with a key board, and the key board is electrically connected with a CPU of the controller.
- 6. The air-conditioner frequency conversion regulating circuit of claim 5, wherein the PLC has a CPU model of CPU SR 20.
- 7. The air conditioner frequency conversion regulating circuit of claim 1, wherein the switch module is a three-phase circuit breaker for preventing circuit overload.
- 8. The kind of air conditioner frequency conversion regulating circuit of claim 1, wherein the frequency converter is ACS800-01-0100-3 frequency converter.
- 9. The kinds of air conditioner frequency conversion regulating circuit of claim 1, wherein the signal of the wind speed detector is GM8902 digital anemometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921270901.7U CN210007640U (en) | 2019-08-07 | 2019-08-07 | air conditioner frequency conversion regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921270901.7U CN210007640U (en) | 2019-08-07 | 2019-08-07 | air conditioner frequency conversion regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210007640U true CN210007640U (en) | 2020-01-31 |
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ID=69311199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921270901.7U Expired - Fee Related CN210007640U (en) | 2019-08-07 | 2019-08-07 | air conditioner frequency conversion regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210007640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325767A (en) * | 2021-05-10 | 2022-11-11 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
-
2019
- 2019-08-07 CN CN201921270901.7U patent/CN210007640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325767A (en) * | 2021-05-10 | 2022-11-11 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
| CN115325767B (en) * | 2021-05-10 | 2023-11-21 | 安徽美芝制冷设备有限公司 | Refrigerator and starting method and device of constant-frequency compressor of refrigerator |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200131 Termination date: 20210807 |