CN102780448A - Three-phase asynchronous motor energy-saving device - Google Patents
Three-phase asynchronous motor energy-saving device Download PDFInfo
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- CN102780448A CN102780448A CN2012102541224A CN201210254122A CN102780448A CN 102780448 A CN102780448 A CN 102780448A CN 2012102541224 A CN2012102541224 A CN 2012102541224A CN 201210254122 A CN201210254122 A CN 201210254122A CN 102780448 A CN102780448 A CN 102780448A
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Abstract
The invention relates to the technical field of three-phase asynchronous motors, in particular to a three-phase asynchronous motor energy-saving device which comprises a motor. Connecting ports of the motor are respectively connected with a three-phase power source, thyristors are arranged among the three-phase power source and the connecting ports of the motor, two optional power wires of the three-phase power source among the three-phase power source and the corresponding thyristors are connected with a power circuit and a phase-sequence detector respectively, a terminal of the power circuit is connected with a power port of a single chip microcomputer, a corresponding terminal of the phase-sequence detector is fixedly connected with a corresponding pin of the single chip microcomputer, and an operating signal interface and a trigger interface of each thyristor are fixedly connected with corresponding pins of the single chip microcomputer. When the three-phase asynchronous motor energy-saving device is used, the single chip microcomputer and the thyristors are used for adjusting terminal voltage of the motor, so that operating efficiency of the motor can be greatly improved, power factor of the motor can be greatly increased, and energy saving is achieved. The three-phase asynchronous motor energy-saving device has the advantages of simple structure, reasonableness in arrangement, low manufacture cost and the like.
Description
Technical field
The present invention relates to a kind of threephase asynchronous technical field, particularly a kind of threephase asynchronous energy saver.
Background technology
Along with science and technology is constantly brought forth new ideas, threephase asynchronous is widely used in the industrial and agricultural production activity.The selected motor of plant equipment that present factory generally uses all is to carry out supporting according to the required maximum power of machinery.But in the practical application, threephase asynchronous is fully loaded with service time and few, and often is discontinuous operation; The render electrical motivation is usually moved under zero load or light condition.Such as: under rated voltage, when motor load rate was lower than 40%, motor efficiency can descend rapidly, and power factor also can be very low, so just is easy to cause power wastage.Therefore, how to improve the motor operational efficiency, how to improve problem such as motor power (output) factor and become the focus of research in the industry.
Summary of the invention
The objective of the invention is to defective and deficiency, threephase asynchronous energy saver a kind of simple in structure, reasonable in design, easy to use is provided to prior art.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of threephase asynchronous energy saver of the present invention; Comprise motor; The Wiring port of said motor is connected with three phase mains respectively; Be provided with controllable silicon between the Wiring port of said three phase mains and said motor, wantonly two power lines of the three phase mains between said controllable silicon and the said three phase mains are connected with power circuit respectively and phase sequence detects, and the terminals of said power circuit are connecting the power port of single-chip microcomputer; The respective terminal that said phase sequence detects is being fixedly connected the respective pin of single-chip microcomputer, and said silicon controlled working signal interface and trigger interface are being fixedly connected the respective pin of single-chip microcomputer respectively.
Further, the respective pin of said single-chip microcomputer also is connected with electric current and voltage collector and display circuit.
After adopting said structure; Beneficial effect of the present invention is: a kind of threephase asynchronous energy saver of the present invention; Comprise motor; The Wiring port of said motor is connected with three phase mains respectively; Be provided with controllable silicon between the Wiring port of said three phase mains and said motor, wantonly two power lines of the three phase mains between said controllable silicon and the said three phase mains are connected with power circuit respectively and phase sequence detects, and the terminals of said power circuit are connecting the power port of single-chip microcomputer; The respective terminal that said phase sequence detects is being fixedly connected the respective pin of single-chip microcomputer, and said silicon controlled working signal interface and trigger interface are being fixedly connected the respective pin of single-chip microcomputer respectively.Use when of the present invention, the terminal voltage through single-chip microcomputer and controllable silicon are regulated motor can greatly improve motor operating efficiency and power factor, thereby realizes energy-conservation purpose.Advantages such as the present invention has simple in structure, is provided with rationally, and cost of manufacture is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Description of reference numerals:
L, three phase mains; 1, motor; 2, controllable silicon; 21, working signal interface;
22, trigger interface; 3, power circuit; 4, phase sequence detects; 5, electric current and voltage collector;
6, display circuit; 7, single-chip microcomputer.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1; A kind of threephase asynchronous energy saver of the present invention; Comprise motor 1; The Wiring port of said motor 1 is connected with three phase mains L respectively; Be provided with controllable silicon 2 between the Wiring port of said three phase mains L and said motor 1, wantonly two power lines of the three phase mains L between said controllable silicon 2 and the said three phase mains L are connected with power circuit 3 respectively and detect 4 with phase sequence, and the terminals of said power circuit 3 are connecting the power port of single-chip microcomputer 7; Said phase sequence detects the respective pin that 4 respective terminal is being fixedly connected single-chip microcomputer 7, and the working signal interface 21 of said controllable silicon 2 and trigger interface 22 are being fixedly connected the respective pin of single-chip microcomputer 7 respectively.
The respective pin of said single-chip microcomputer 7 also is connected with electric current and voltage collector 5 and display circuit 6.
Operation principle
The first step, motor 1 detects the signal that 4 circuit are sent here according to phase sequence, and whether differentiate CONFIG correct; Correct like CONFIG, then through the trigger interface 22 of controllable silicon 2 actuating motor 1 that signals, otherwise stop to start.
In second step, behind motor 1 normal the startup, motor 1 moves several seconds (running time is by program setting) under the situation of rated voltage; Single-chip microcomputer 7 is gathered voltage, the electric current of motor 1 operation through electric current and voltage collector 5, and judged whether, under voltage, the phase failure, overcurrent, overload etc., if any; Then signal and stop motor 1 through the trigger interface 22 of controllable silicon 2; Otherwise, move (running time is by program setting) after several seconds, get into the energy-saving run mode.
The 3rd step; According to the working signal of gathering controllable silicon 2, single-chip microcomputer 7 calculates the power factor of motor 1, comes progressively to adjust the pilot angle of controllable silicon 2 again by the size of power factor; Promptly be the terminal voltage of progressively adjusting motor 1, thereby motor 1 is operated under the suitable terminal voltage; During this period, single-chip microcomputer 7 also can be through the operation of electric current and voltage collector 5 monitoring motor 1, and concrete operations are identical with second step.
Use when of the present invention, not only can improve motor operating efficiency and power factor, realize energy-conservation purpose, but also can play the effect of protecting against shock load, improve the useful life of motor, strengthen the security reliability of motor.In addition, this is simple in structure, reasonable in design, low cost of manufacture.
The above only is a preferred embodiments of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, characteristic and principle change or modify, includes in patent claim of the present invention.
Claims (2)
1. threephase asynchronous energy saver; Comprise motor (1); The Wiring port of said motor (1) is connected with three phase mains (L) respectively; It is characterized in that: be provided with controllable silicon (2) between the Wiring port of said three phase mains (L) and said motor (1); Wantonly two power lines of the three phase mains (L) between said controllable silicon (2) and the said three phase mains (L) are connected with power circuit (3) respectively and phase sequence detects (4); The terminals of said power circuit (3) are connecting the power port of single-chip microcomputer (7), and the respective terminal that said phase sequence detects (4) is being fixedly connected the respective pin of single-chip microcomputer (7), and the working signal interface (21) of said controllable silicon (2) and trigger interface (22) are being fixedly connected the respective pin of single-chip microcomputer (7) respectively.
2. threephase asynchronous energy saver according to claim 1 is characterized in that: the respective pin of said single-chip microcomputer (7) also is connected with electric current and voltage collector (5) and display circuit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102541224A CN102780448A (en) | 2012-07-23 | 2012-07-23 | Three-phase asynchronous motor energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102541224A CN102780448A (en) | 2012-07-23 | 2012-07-23 | Three-phase asynchronous motor energy-saving device |
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| Publication Number | Publication Date |
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| CN102780448A true CN102780448A (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102541224A Pending CN102780448A (en) | 2012-07-23 | 2012-07-23 | Three-phase asynchronous motor energy-saving device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103916070A (en) * | 2014-03-25 | 2014-07-09 | 新疆电子研究所有限公司 | Three-phase asynchronous motor minimum input power energy saving device and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129491Y (en) * | 1992-08-01 | 1993-04-07 | 唐山市电器厂 | Computer controlled power saving type motor starting box |
| CN2810027Y (en) * | 2005-06-10 | 2006-08-23 | 江西省天智电子科技有限责任公司 | Intelligent energy-saving motor control cabinet |
| CN101674045A (en) * | 2008-09-10 | 2010-03-17 | 江苏省电力公司盐城供电公司 | Voltage-regulating and energy-saving controller for asynchronous motor |
| CN202798568U (en) * | 2012-07-23 | 2013-03-13 | 苏州德能电机有限公司 | Three-phase asynchronous motor energy-saving device |
-
2012
- 2012-07-23 CN CN2012102541224A patent/CN102780448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129491Y (en) * | 1992-08-01 | 1993-04-07 | 唐山市电器厂 | Computer controlled power saving type motor starting box |
| CN2810027Y (en) * | 2005-06-10 | 2006-08-23 | 江西省天智电子科技有限责任公司 | Intelligent energy-saving motor control cabinet |
| CN101674045A (en) * | 2008-09-10 | 2010-03-17 | 江苏省电力公司盐城供电公司 | Voltage-regulating and energy-saving controller for asynchronous motor |
| CN202798568U (en) * | 2012-07-23 | 2013-03-13 | 苏州德能电机有限公司 | Three-phase asynchronous motor energy-saving device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103916070A (en) * | 2014-03-25 | 2014-07-09 | 新疆电子研究所有限公司 | Three-phase asynchronous motor minimum input power energy saving device and application method thereof |
| CN103916070B (en) * | 2014-03-25 | 2016-08-24 | 新疆电子研究所股份有限公司 | Threephase asynchronous minimum power input energy saver and using method thereof |
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Application publication date: 20121114 |