CN202772835U - Intelligent electricity-saving controller of electric motor - Google Patents
Intelligent electricity-saving controller of electric motor Download PDFInfo
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- CN202772835U CN202772835U CN2012205173501U CN201220517350U CN202772835U CN 202772835 U CN202772835 U CN 202772835U CN 2012205173501 U CN2012205173501 U CN 2012205173501U CN 201220517350 U CN201220517350 U CN 201220517350U CN 202772835 U CN202772835 U CN 202772835U
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Abstract
The utility model relates to an electricity-saving controller of an electric motor and discloses an intelligent electricity-saving controller of an electric motor. The problem that a lot of electricity is wasted caused by the fact that no electricity-saving device exists during electric motor operation is solved. An analog signal output end of a shaping circuit, which is shaped, is connected to a filtering wave signal input end of a filtering wave circuit, an analog signal output end of the filtering wave circuit, which is subjected to filtering wave, is connected to an analog signal input end of an amplifying circuit, an analog signal output end of the amplifying circuit, which is amplified, is connected to an analog signal input end of a control circuit, an electricity-saving switching signal output end of an electricity-saving switching circuit is connected to an electricity-saving switching signal input end of the control circuit, a starting operation signal input end of a starting operation output circuit is connected to a starting operation signal output end of the control circuit, and an electricity-saving operation signal input end of an electricity-saving operation output circuit is connected to an electricity-saving operation signal output end of the control circuit. The controller is used for the electricity-saving control of the electric motor.
Description
Technical field
The utility model relates to a kind of motor electricity saving controller.
Background technology
The supply power mode that the at present electric power system in the global range adopts adopts three-phase system mostly, that is: frequency is identical, amplitude equates, initial phase differs 120 ° sinusoidal voltage source successively as the system of Power supply by three.
During general squirrel-cage motor across-the-line starting, starting current is about 4 ~ 7 times of rated current, when net capacity just can not adopt across-the-line starting not greatly, the relation that is directly proportional with terminal voltage according to starting current, can adopt the method that reduces voltage to reduce starting current, be called for short reduced voltage starting, △-Y starting is threephase asynchronous a kind of start mode commonly used.
The Y(star) in the shape wiring, line voltage is phase voltage
Doubly, line current equals phase current, 30 ° phase difference is arranged between line voltage and the phase voltage, and in the wiring of △ (triangle) shape, line voltage equals phase voltage, and line current is phase current
Doubly, △ shape and Y shape starting, its electric current and torque have following relation:
Phase voltage:
Power network current:
In the formula: stator phase current when Isn is star-star-delta connection Y-Y-;
Starting torque:
During threephase asynchronous full-load run, electric energy can be fully utilized, and in industrial production, many equipment are in the light load state for a long time, so-called low load with strong power phenomenon, these equipment are dragged by asynchronous motor usually, when not taking any measure, the running efficiency of motor and power factor are all lower, cause the significant wastage of electric energy.
The utility model content
The utility model is to cause a large amount of problems of wasting of electric energy in order to solve in the existing motor operation course owing to lacking battery saving arrangement, thereby the motor intelligent power-saving controller is provided.
The motor intelligent power-saving controller, it comprises control circuit, analog input circuit, energy-conservation change-over circuit, starting operation output circuit and energy-saving operation output circuit, analog input circuit comprises shaping circuit, filter circuit and amplifying circuit, and analog signal output is connected with the filtering signal input of filter circuit after the shaping of described shaping circuit; Analog signal output is connected with the input end of analog signal of amplifying circuit after the filtering of filter circuit; Analog signal output is connected with the input end of analog signal of control circuit after the amplification of amplifying circuit; The energy-conservation switching signal output of energy-conservation change-over circuit is connected with the energy-conservation switching signal input of control circuit; The starting operation signal input part of starting operation output circuit is connected with the starting operation signal output part of control circuit; The energy-saving operation signal input part of energy-saving operation output circuit is connected with the energy-saving operation signal output part of control circuit.
It also comprises powder down memory circuit, and the power-failure memory signal output part of described powder down memory circuit is connected with the power-failure memory signal input part of control circuit.
It also comprises the function setting circuit, and the function setting signal output part of described function setting circuit is connected with the function setting signal input part of control circuit.
It also comprises the memory enquiry circuit, and the memory request signal output of described memory enquiry circuit is connected with the memory request signal input of control circuit.
It also comprises delay setting circuit, and the delay adjustments signal output part of described delay setting circuit is connected with the delay adjustments signal input part of control circuit.
It also comprises the password setting circuit, and the password setting signal output part of described password setting circuit is connected with the password setting signal input part of control circuit.
It also comprises 4 ~ 20mA current output circuit, and 4 ~ 20mA current signal input of described 4 ~ 20mA current output circuit is connected with 4 ~ 20mA current signal output end of control circuit.
It also comprises liquid crystal display circuit, and the display input of described liquid crystal display circuit is connected with the display output of control circuit.
It also comprises the range initialization circuit, and the range setting signal output of described range initialization circuit is connected with the range signal input part of control circuit.
Beneficial effect: the utility model provides a kind of intelligent motor economize on electricity controller, can realize the intelligent power saving control to the motor operation, significant saves energy, and economize on electricity can reach more than 60%.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment one, in conjunction with Fig. 1 this embodiment is described, the motor intelligent power-saving controller, it comprises control circuit 1, analog input circuit 2, energy-conservation change-over circuit 7, starting operation output circuit 10 and energy-saving operation output circuit 11, analog input circuit 2 comprises shaping circuit 21, filter circuit 22 and amplifying circuit 23, and the shaping afterpulse signal output part of described shaping circuit 21 is connected with the filtering signal input of filter circuit 22; Analog signal output is connected with the input end of analog signal of amplifying circuit 23 after the filtering of filter circuit 22; Analog signal output is connected with the input end of analog signal of control circuit 1 after the amplification of amplifying circuit 23; The energy-conservation switching signal output of energy-conservation change-over circuit 7 is connected with the energy-conservation switching signal input of control circuit 1; The starting operation signal input part of starting operation output circuit 10 is connected with the starting operation signal output part of control circuit 1; The energy-saving operation signal input part of energy-saving operation output circuit 11 is connected with the energy-saving operation signal output part of control circuit 1.
The utility model is a kind of electric motor intelligent electricity saver, its principle is to increase this controller on the basis of original control loop, it adopts single-chip microcomputer to detect the motor operation electric current, carry out automatic electricity-saving control according to the motor current size, motor is switched between starting operation and energy-saving run, reach significantly energy-conservation control.During the light running of the utility model motor, reduce exciting current by reducing terminal voltage, thus reduce iron loss and from electrical network absorb idle, and then improve operational efficiency and the power factor of motor, thereby realize the purpose of economize on electricity.The utility model energy-saving effect is than existing squirrel-cage threephase asynchronous control circuit, and its energy-saving effect obviously promotes, and can not affect the normal operation of contiguous load.
The difference of embodiment two, this embodiment and embodiment one described motor intelligent power-saving controller is, it also comprises powder down memory circuit 3, and the power-failure memory signal output part of described powder down memory circuit 3 is connected with the power-failure memory signal input part of control circuit 1.
Present embodiment can realize the power-down data protection function, to the peaked automatic Memory function of sampled signal.Automatic save data when realizing power down is convenient to data query, is conducive to accident analysis.
The difference of embodiment three, this embodiment and embodiment one or two described motor intelligent power-saving controllers is, it also comprises function setting circuit 4, and the function setting signal output part of described function setting circuit 4 is connected with the function setting signal input part of control circuit 1.
Present embodiment may be set by the function of 4 pairs of control circuits 1 of function setting circuit.
The difference of embodiment four, this embodiment and embodiment three described motor intelligent power-saving controllers is, it also comprises memory enquiry circuit 5, and the memory request signal output of described memory enquiry circuit 5 is connected with the memory request signal input of control circuit 1.
Present embodiment can realize the power-down data protection function, to the peaked automatic query function of sampled signal, is convenient to the analysis accident, deals with problems.
The difference of embodiment five, this embodiment and embodiment one, two or four described motor intelligent power-saving controllers is, it also comprises delay setting circuit 8, and the delay adjustments signal output part of described delay setting circuit 8 is connected with the delay adjustments signal input part of control circuit 1.
In the present embodiment, can carry out delay protection by the delay adjustments signal.
The difference of embodiment six, this embodiment and embodiment five described motor intelligent power-saving controllers is, it also comprises password setting circuit 9, and the password setting signal output part of described password setting circuit 9 is connected with the password setting signal input part of control circuit 1.
In the present embodiment, can pass through password setting circuit 9 setting codes.
The difference of embodiment seven, this embodiment and embodiment one, two, four or six described motor intelligent power-saving controllers is, it also comprises 4 ~ 20mA current output circuit 12, and 4 ~ 20mA current signal input of described 4 ~ 20mA current output circuit 12 is connected with 4 ~ 20mA current signal output end of control circuit 1.
Present embodiment possesses 4 ~ 20mA signal output function, can implement conversion output to motor current, makes this instrument possess the teletransmission interface, for long-distance intelligent control provides convenience, conveniently is connected with the DCS central control system.Data-signal is sent to upper management computer in real time, the record of more convenient rotating speed and inquiry.
The difference of embodiment eight, this embodiment and embodiment seven described motor intelligent power-saving controllers is, it also comprises liquid crystal display circuit 13, and the display input of described liquid crystal display circuit 13 is connected with the display output of control circuit 1.
Present embodiment, by the information of liquid crystal display circuit 13 real-time display control circuits 1, man-machine interface has adopted the liquid crystal digital demonstration, has more directly added intuitive and convenient and has shown and control.
The difference of embodiment nine, this embodiment and embodiment one, two, four, six or eight described motor intelligent power-saving controllers is, range initialization circuit 6, the range setting signal output of described range initialization circuit 6 is connected with the range signal input part of control circuit 1.
The difference of embodiment ten, this embodiment and embodiment nine described motor intelligent power-saving controllers is, it comprises that also control circuit 1 adopts chip microcontroller.
Claims (10)
1. motor intelligent power-saving controller, it is characterized in that: it comprises control circuit (1), analog input circuit (2), energy-conservation change-over circuit (7), starting operation output circuit (10) and energy-saving operation output circuit (11), analog input circuit (2) comprises shaping circuit (21), filter circuit (22) and amplifying circuit (23), and analog signal output is connected with the filtering signal input of filter circuit (22) after the shaping of described shaping circuit (21); Analog signal output is connected with the input end of analog signal of amplifying circuit (23) after the filtering of filter circuit (22); Analog signal output is connected with the input end of analog signal of control circuit (1) after the amplification of amplifying circuit (23); The energy-conservation switching signal output of energy-conservation change-over circuit (7) is connected with the energy-conservation switching signal input of control circuit (1); The starting operation signal input part of starting operation output circuit (10) is connected with the starting operation signal output part of control circuit (1); The energy-saving operation signal input part of energy-saving operation output circuit (11) is connected with the energy-saving operation signal output part of control circuit (1).
2. motor intelligent power-saving controller according to claim 1, it is characterized in that it also comprises powder down memory circuit (3), the power-failure memory signal output part of described powder down memory circuit (3) is connected with the power-failure memory signal input part of control circuit (1).
3. motor intelligent power-saving controller according to claim 1 and 2, it is characterized in that it also comprises function setting circuit (4), the function setting signal output part of described function setting circuit (4) is connected with the function setting signal input part of control circuit (1).
4. motor intelligent power-saving controller according to claim 3, it is characterized in that it also comprises memory enquiry circuit (5), the memory request signal output of described memory enquiry circuit (5) is connected with the memory request signal input of control circuit (1).
5. according to claim 1,2 or 4 described motor intelligent power-saving controllers, it is characterized in that it also comprises delay setting circuit (8), the delay adjustments signal output part of described delay setting circuit (8) is connected with the delay adjustments signal input part of control circuit (1).
6. motor intelligent power-saving controller according to claim 5, it is characterized in that it also comprises password setting circuit (9), the password setting signal output part of described password setting circuit (9) is connected with the password setting signal input part of control circuit (1).
7. according to claim 1,2,4 or 6 described motor intelligent power-saving controllers, it is characterized in that it also comprises 4 ~ 20mA current output circuit (12), 4 ~ 20mA current signal input of described 4 ~ 20mA current output circuit (12) is connected with 4 ~ 20mA current signal output end of control circuit (1).
8. motor intelligent power-saving controller according to claim 7 is characterized in that it also comprises liquid crystal display circuit (13), and the display input of described liquid crystal display circuit (13) is connected with the display output of control circuit (1).
9. according to claim 1,2,4,6 or 8 described motor intelligent power-saving controllers, it is characterized in that it also comprises range initialization circuit (6), the range setting signal output of described range initialization circuit (6) is connected with the range signal input part of control circuit (1).
10. motor intelligent power-saving controller according to claim 9 is characterized in that it comprises that also control circuit (1) adopts chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205173501U CN202772835U (en) | 2012-10-10 | 2012-10-10 | Intelligent electricity-saving controller of electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205173501U CN202772835U (en) | 2012-10-10 | 2012-10-10 | Intelligent electricity-saving controller of electric motor |
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| Publication Number | Publication Date |
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| CN202772835U true CN202772835U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205173501U Expired - Fee Related CN202772835U (en) | 2012-10-10 | 2012-10-10 | Intelligent electricity-saving controller of electric motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857172A (en) * | 2012-10-10 | 2013-01-02 | 徐海峰 | Intelligent motor power-saving control instrument |
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2012
- 2012-10-10 CN CN2012205173501U patent/CN202772835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857172A (en) * | 2012-10-10 | 2013-01-02 | 徐海峰 | Intelligent motor power-saving control instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |