CN202094842U - Micromotor energy-saving device - Google Patents
Micromotor energy-saving device Download PDFInfo
- Publication number
- CN202094842U CN202094842U CN2011201518005U CN201120151800U CN202094842U CN 202094842 U CN202094842 U CN 202094842U CN 2011201518005 U CN2011201518005 U CN 2011201518005U CN 201120151800 U CN201120151800 U CN 201120151800U CN 202094842 U CN202094842 U CN 202094842U
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- China
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- output
- contactor
- micromotor
- input
- plc controller
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Abstract
The utility model discloses a micromotor energy-saving device which comprises a circuit breaker, a first alternating current contactor, a second alternating current contactor, a transducer, a third alternating current contactor, a return pipeline, a PLC (Programmable Logic Controller) and a signal sensor. Dynamic tracking control technology, computer control technology and converter technology are combined; various signals such as temperature, pressure and flow are collected by the signal sensor in real time and are fed into the PLC (Programmable Logic Controller); corresponding control signals are output to the transducer through the PLC (Programmable Logic Controller); corresponding frequency is output by the transducer to control the rotating speed of a micromotor; the micromotor outputs corresponding power according to calculation results so as to supply the required simultaneously when the precise closed loop control is realized, and further reduce the waste to the maximum and achieve the power-saving purpose.
Description
Technical field
The utility model relates to the field of energy-saving technology of micro ac motor, is specifically related to a kind of micromotor energy saver.
Background technology
At present, most of occasion of using miniature alternating current motor, as: automobile, blower fan, water pump etc., in order to bring into play the micromotor more performance, improve the accuracy of control, reduce unnecessary power consumption, generally adopt soft start or common variable frequency control, soft start just acts in the motor start-stop process, does not play a role when running well, and power savings is not obvious, general variable frequency control is realizing on soft the soft basis of stopping, though can carry out speed governing to motor by manual or open loop control, control precision is not high, therefore can not reach good power savings.
The utility model content
In order to address the above problem, the purpose of this utility model is to provide a kind of can make the existing more energy-conservation miniature alternating current motor energy saver of micromotor.
In order to reach above purpose, the technical scheme that the utility model adopted is:
A kind of micromotor energy saver comprises circuit breaker, first A.C. contactor, second A.C. contactor, frequency converter, the 3rd A.C. contactor, water return pipeline, PLC controller and signal transducer; The circuit breaker input connects main power source, the output of circuit breaker is connected with the input of first A.C. contactor, the output of first A.C. contactor is connected with the input of frequency converter, the output of frequency converter is connected with the input of second A.C. contactor, the 3rd A.C. contactor is connected in parallel between the circuit breaker output and the second A.C. contactor output, the output of second A.C. contactor is connected on the micromotor, the input of water return pipeline is connected on the micromotor, the output of water return pipeline is connected with the input of signal transducer, the output of signal transducer is connected with the input of PLC controller, and the output of PLC controller is connected with frequency converter.
The feedback signal that the signal transducer that receives for the PLC controller transmits is interference-free, and the signal transducer output is connected with the input of PLC controller, specifically is by the shielding conductor electrical connection preferably of an interference free performance.
In order to prevent that frequency converter from sending electricity, between the 3rd A.C. contactor and second A.C. contactor interlocking circuit is set.
In order to observe with easy to operate, the mainboard controller in the PLC controller connects display.
Be convenient to collect in order to control with the miniature electric machine data, the mainboard controller in the PLC controller connects printer.
The utility model adopts dynamic tracking control technology, Computer Control Technology to combine with converter technique, by various signals such as the real-time collecting temperature of signal transducer, pressure, flows, and send into the PLC controller, calculate the output control signal corresponding to frequency converter by the PLC controller, by frequency converter output corresponding frequencies control micromotor rotating speed, be that micromotor is exported corresponding power according to result of calculation, when realizing that closed loop is accurately controlled, realization supplies promptly required, maximization cuts the waste, and reaches purpose of saving.
The beneficial effects of the utility model are: in the normal use of assurance equipment, allocate and transport control accurately to exchanging micromotor, save unnecessary waste of energy, for energy-saving and cost-reducing, bring obvious benefit.
Description of drawings
Fig. 1 is the basic structure block diagram of a kind of micromotor energy saver of the utility model.
Embodiment
A kind of micromotor energy saver of the utility model, embodiment is:
A kind of micromotor energy saver comprises: circuit breaker 1, first A.C. contactor 2, frequency converter 3, PLC controller 4, signal transducer 5, the 3rd A.C. contactor 6, second A.C. contactor 7, water return pipeline 9, interlocking circuit 10, display 11 and printer 12; Circuit breaker 1 input is connected on the main power source, the output of circuit breaker 1 is connected with the input of first A.C. contactor 2, the output of first A.C. contactor 2 is connected with the input of frequency converter 3, the output of frequency converter 3 is connected with the input of second A.C. contactor 7, the 3rd A.C. contactor 6 is connected in parallel between circuit breaker 1 output and second A.C. contactor, 7 outputs, between the 3rd A.C. contactor 6 and second A.C. contactor 7 interlocking circuit 10 is set, the output of second A.C. contactor 7 is connected on the micromotor 8, the input of water return pipeline 9 is connected on the micromotor 8, the output of water return pipeline 9 is connected with the input of signal transducer 5, the input of the output of signal transducer 5 and PLC controller 4 by an interference free performance preferably shielding conductor be electrically connected, the output of PLC controller 4 is connected with frequency converter 3, also connects display 11 and printer 12 on the PLC controller 4.
In the utility model, utilize signal transducer 4 real-time pressure to power-equipment, temperature, operational factors such as flow are finished sampling, and signal is sent into PLC controller 4 by the good shielding conductor of interference free performance, PLC controller 4 carries out digital processing with 0.1 second refresh rate to acquired signal, PLC controller 4 compares with set point according to gathering numerical value by control program, calculate the control corresponding amount, then control signal (voltage 0-10V, electric current 4-20mA etc.) input converter 3 control ends, frequency converter 3 can be according to numerical value output correspondent frequency control micromotor 8 rotating speeds of input, at any time regulate and control power-equipment, the power-equipment parameters is changed synchronously with load variations, and real realization supplies promptly required.
In the utility model, micromotor 8 rotating speeds are proportional with frequency, and micromotor 8 rotating speeds cube with motor power (output) proportional, the power output that draws motor thus is cube proportional with frequency, promptly when rotating speed become power frequency 80% the time, power output is 51.2% (calculated value) of power frequency, accurately control the micromotor rotating speed thus, can control the output of micromotor shaft power, promptly when reducing the frequency (rotating speed) of motor, the shaft power of motor output becomes cubic relationship to descend, thereby realize the purpose of economize on electricity, soft soft stopping can also realizing micromotor in addition reduced the impact of big electric current when starting, prolong the life-span of micromotor, reduced maintenance cost.
Claims (5)
1. a micromotor energy saver comprises circuit breaker, first A.C. contactor, second A.C. contactor, frequency converter, the 3rd A.C. contactor, water return pipeline, PLC controller and signal transducer; The circuit breaker input connects main power source, the output of circuit breaker is connected with the input of first A.C. contactor, the output of first A.C. contactor is connected with the input of frequency converter, the output of frequency converter is connected with the input of second A.C. contactor, the 3rd A.C. contactor is connected in parallel between the circuit breaker output and the second A.C. contactor output, the output of second A.C. contactor is connected on the micromotor, the input of water return pipeline is connected on the micromotor, the output of water return pipeline is connected with the input of signal transducer, the output of signal transducer is connected with the input of PLC controller, and the output of PLC controller is connected with frequency converter.
2. a kind of micromotor energy saver according to claim 1 is characterized in that: the signal transducer output is connected with the input of PLC controller, specifically is by the shielding conductor electrical connection preferably of an interference free performance.
3. a kind of micromotor energy saver according to claim 1 is characterized in that: between the 3rd A.C. contactor and second A.C. contactor interlocking circuit is set.
4. a kind of micromotor energy saver according to claim 1 is characterized in that: the mainboard controller in the PLC controller connects display.
5. a kind of micromotor energy saver according to claim 1 is characterized in that: the mainboard controller in the PLC controller connects printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201518005U CN202094842U (en) | 2011-05-13 | 2011-05-13 | Micromotor energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201518005U CN202094842U (en) | 2011-05-13 | 2011-05-13 | Micromotor energy-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094842U true CN202094842U (en) | 2011-12-28 |
Family
ID=45369882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201518005U Expired - Fee Related CN202094842U (en) | 2011-05-13 | 2011-05-13 | Micromotor energy-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099695A (en) * | 2021-04-07 | 2021-07-09 | 上海应用技术大学 | PLC frequency conversion temperature control system for box-in ventilation of converter transformer |
-
2011
- 2011-05-13 CN CN2011201518005U patent/CN202094842U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099695A (en) * | 2021-04-07 | 2021-07-09 | 上海应用技术大学 | PLC frequency conversion temperature control system for box-in ventilation of converter transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20111228 Termination date: 20130513 |