CN101961912A - Variable-frequency power saver of single-phase injection molding machine - Google Patents
Variable-frequency power saver of single-phase injection molding machine Download PDFInfo
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- CN101961912A CN101961912A CN2010105192550A CN201010519255A CN101961912A CN 101961912 A CN101961912 A CN 101961912A CN 2010105192550 A CN2010105192550 A CN 2010105192550A CN 201010519255 A CN201010519255 A CN 201010519255A CN 101961912 A CN101961912 A CN 101961912A
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- 238000001746 injection moulding Methods 0.000 title abstract 6
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 56
- 239000007924 injection Substances 0.000 claims description 56
- 230000005669 field effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 2
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a variable-frequency power saver of a single-phase injection molding machine, belonging to the technical field of motor energy-saving control. The variable-frequency power saver comprises an injection molding machine operating parameter detection circuit (10), a single-phase rectification circuit (20), a charging circuit (30), a battery (40), a battery switch (50), a single-phase inverter (6), a capacitor (70), a control circuit (80) and a single-phase power contactor (90). When applied to an injection molding machine with an AC motor, the variable-frequency power saver can respectively realize two energy saving methods of speed regulation energy saving and power grid peak load shaving simultaneously, and the effect of saving 20-90% of power can be generally achieved. The variable-frequency power saver of the single-phase injection molding machine has the advantages of simple and convenient structure, visual metering, obvious power saving effect and broad application prospect in the energy saving aspect of the injection molding machine.
Description
Technical field
The present invention relates to single-phase injection machine frequency-variable energy-saving device, belong to energy saving motor control technology field, be specifically related to a kind of variable speed energy saving and these two kinds of power control units that power-economizing method economizes on electricity of electrical network peak load shifting realized simultaneously.Be applicable on the injection machine that has single-phase AC motor.
Background technology
Along with progress, the development of science and technology of society, the positive growing tension of 21 century global energy, China is again energy resource consumption big country, energy-conservation economize on electricity is imperative.
Therefore, it is necessary injection machine being carried out power-saving Retrofit.
At present, a lot of occasions are arranged, the single-phase AC motor injection machine does not adopt power-saving technology that it is carried out reducing energy consumption, or only just frequency converter has been installed simply its speed fixedly is reduced to certain value and does not carry out dynamic adjustments.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned waste of energy of the prior art, provide a kind of simple and practical, cost is lower, can fully automatic operation, the significant single-phase injection machine frequency-variable energy-saving device of power savings.
In order to realize that the foregoing invention purpose adopts following technical scheme:
Single-phase injection machine frequency-variable energy-saving device of the present invention comprises injection machine operational parameter detection circuit (10), single phase rectifier circuit (20), charging circuit (30), battery (40), cell switch (50), single-phase inverter (60), capacitor (70), control circuit (80), single phase poaer supply contactor (90).The external electrical network single phase poaer supply inserts the input of single phase poaer supply contactor (90), the output of single phase poaer supply contactor (90) respectively with the input of single phase rectifier circuit (20), the input of charging circuit (30) connects, the output of single phase rectifier circuit (20) respectively with the input of cell switch (50), single-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the DC terminal of single-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection machine operational parameter detection circuit (10), the control end of single phase rectifier circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of single-phase inverter (60), the control end of single phase poaer supply contactor (90) is connected, the output of single-phase inverter (60) is connected with the injection machine ac motor, and injection machine operational parameter detection circuit (10) is connected with sensor on being installed on injection machine.
Adopted the single-phase injection machine frequency-variable energy-saving device of this invention, can realize simultaneously that the dynamic speed adjustment of injection machine is energy-conservation and the electrical network peak load shifting is carried out these two kinds of power-economizing methods of electric power storage energy storage to economize on electricity.When this battery saving arrangement is applied on the injection machine of not making similar power-saving Retrofit, generally can obtain 20%～90% power savings, electricity-saving appliance of the present invention does not influence the use of injection machine operate as normal simultaneously, simple installation, possess good economic benefit and social benefit, and simple and practical, and cost is lower, can fully automatic operation, power savings is remarkable.Aspect injection machine energy-saving, be with a wide range of applications.
Description of drawings
Accompanying drawing is the operation principle block diagram of single-phase injection machine frequency-variable energy-saving device of the present invention.
The specific embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
Consult shown in the accompanying drawing, with be applied to 220V, a 50HZ, injection machine single-phase, 1.5KW is reference, this single-phase injection machine frequency-variable energy-saving device comprises injection machine operational parameter detection circuit (10), single phase rectifier circuit (20), charging circuit (30), battery (40), cell switch (50), single-phase inverter (60), capacitor (70), control circuit (80), single phase poaer supply contactor (90).The external electrical network single phase poaer supply inserts the input of single phase poaer supply contactor (90), the output of single phase poaer supply contactor (90) respectively with the input of single phase rectifier circuit (20), the input of charging circuit (30) connects, the output of single phase rectifier circuit (20) respectively with the input of cell switch (50), single-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the DC terminal of single-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection machine operational parameter detection circuit (10), the control end of single phase rectifier circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of single-phase inverter (60), the control end of single phase poaer supply contactor (90) is connected, the output of single-phase inverter (60) is connected with the injection machine ac motor, and injection machine operational parameter detection circuit (10) is connected with sensor on being installed on injection machine.
Simultaneously, the power device that is comprised in the single-phase inverter (60) in this single-phase injection machine frequency-variable energy-saving device can be V-type groove metal-oxide-semiconductor field effect transistor (VMOS), igbt (IGBT), integral gate change transistor (IGCT), smart power switch device and drive circuit integration module (IPM) or intelligent power integrated circuit (SPIC).
The 220V50HZ power supply is linked into charging circuit (30) and single phase rectifier circuit (20) through single phase poaer supply contactor (90), when electricity price electricity price at a low ebb at 22 (being generally in evening to point on daytimes 8), charging circuit (30) puts into operation, charge for battery (40), cell switch this moment (50) disconnects.Civil power becomes direct current by single phase rectifier circuit (20), through single-phase inverter (60) direct current is converted into the alternating current of frequency adjustable, and this alternating current is sent to injection machine, the different speed of the corresponding injection machine of different frequencies.Control circuit (80) receives the feedback signal of injection machine operational parameter detection circuit (10) in real time, and through after the computing, to single-phase inverter (60), the corresponding frequency of single-phase inverter (60) output arrives the injection machine motor with the output speed signal.The injection machine motor speed descends, and will cause the injection machine energy consumption to decline to a great extent.
When electricity price is in peak when electricity (be generally daytime to point in evenings 22) at 8, charging circuit (30) automatic disconnection, carry out direct current supply for single-phase inverter (60) by battery (40) by cell switch (50), at this moment, single phase rectifier circuit (20) automatic disconnection, the direct current that battery (40) provides is converted into the alternating current of frequency adjustable through single-phase inverter (60) with direct current, and this alternating current is sent to injection machine, the different speed of the corresponding injection machine of different frequencies.Control circuit (80) receives the feedback signal of injection machine operational parameter detection circuit (10) in real time, and through after the computing, to single-phase inverter (60), the corresponding frequency of single-phase inverter (60) output arrives the injection machine motor with the output speed signal.The injection machine motor speed descends, and will cause the injection machine energy consumption to decline to a great extent.
For the injection machine of this 220V, 50HZ, single-phase, 1.5KW, motor speed can be regulated according to injection machine operational parameter detection circuit (10), and energy consumption can significantly reduce.Because electric power low ebb electricity price is cheap more a lot of than peak electricity tariff, when being in electric power low ebb electricity price, single-phase injection machine frequency-variable energy-saving device of the present invention can be to battery (40) charging accumulation of energy simultaneously; When being in the electric power peak electricity tariff, single-phase injection machine frequency-variable energy-saving device of the present invention can discharge so that the peak electricity consumption has been avoided in the injection machine normal operation from battery (40), and the actual electricity charge wholesale of paying is reduced.
Adopted the single-phase injection machine frequency-variable energy-saving device of this invention, can realize simultaneously that the dynamic speed adjustment of injection machine is energy-conservation and the electrical network peak load shifting is carried out these two kinds of power-economizing methods of electric power storage energy storage to economize on electricity.When this battery saving arrangement is applied on the injection machine of not making similar power-saving Retrofit, generally can obtain 20%～90% power savings, electricity-saving appliance of the present invention does not influence the use of injection machine operate as normal simultaneously, simple installation, possess good economic benefit and social benefit, and simple and practical, and cost is lower, can fully automatic operation, power savings is remarkable.Aspect injection machine energy-saving, be with a wide range of applications.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion and not deviate from the spirit and scope of the present invention at single-phase injection machine obviously.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (2)
1. a single-phase injection machine frequency-variable energy-saving device comprises injection machine operational parameter detection circuit (10), single phase rectifier circuit (20), charging circuit (30), battery (40), cell switch (50), single-phase inverter (60), capacitor (70), control circuit (80), single phase poaer supply contactor (90).The external electrical network single phase poaer supply inserts the input of single phase poaer supply contactor (90), the output of single phase poaer supply contactor (90) respectively with the input of single phase rectifier circuit (20), the input of charging circuit (30) connects, the output of single phase rectifier circuit (20) respectively with the input of cell switch (50), single-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the DC terminal of single-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection machine operational parameter detection circuit (10), the control end of single phase rectifier circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of single-phase inverter (60), the control end of single phase poaer supply contactor (90) is connected, the output of single-phase inverter (60) is connected with the injection machine ac motor, and injection machine operational parameter detection circuit (10) is connected with sensor on being installed on injection machine.
2. single-phase injection machine frequency-variable energy-saving device according to claim 1 is characterized in that: the power device in the described single-phase inverter (60) is V-type groove metal-oxide-semiconductor field effect transistor (VMOS), igbt (IGBT), integral gate change transistor (IGCT), smart power switch device and drive circuit integration module (IPM) or intelligent power integrated circuit (SPIC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105192550A CN101961912A (en) | 2010-10-25 | 2010-10-25 | Variable-frequency power saver of single-phase injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105192550A CN101961912A (en) | 2010-10-25 | 2010-10-25 | Variable-frequency power saver of single-phase injection molding machine |
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| CN101961912A true CN101961912A (en) | 2011-02-02 |
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| CN2010105192550A Pending CN101961912A (en) | 2010-10-25 | 2010-10-25 | Variable-frequency power saver of single-phase injection molding machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841678A (en) * | 2012-11-22 | 2014-06-04 | 山东东方管业有限公司 | Thermoplastic pipeline flanging electromagnetic heating device |
| CN105984077A (en) * | 2015-01-27 | 2016-10-05 | 宁波弘讯科技股份有限公司 | Method of controlling injection molding machine manipulator, the injection molding machine manipulator, and driver thereof |
| CN109742928A (en) * | 2019-01-24 | 2019-05-10 | 海天塑机集团有限公司 | A special power supply device for injection molding machine controller |
-
2010
- 2010-10-25 CN CN2010105192550A patent/CN101961912A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841678A (en) * | 2012-11-22 | 2014-06-04 | 山东东方管业有限公司 | Thermoplastic pipeline flanging electromagnetic heating device |
| CN105984077A (en) * | 2015-01-27 | 2016-10-05 | 宁波弘讯科技股份有限公司 | Method of controlling injection molding machine manipulator, the injection molding machine manipulator, and driver thereof |
| CN105984077B (en) * | 2015-01-27 | 2018-06-29 | 宁波弘讯科技股份有限公司 | A kind of method for controlling manipulator of injection machine and manipulator of injection machine and its driver |
| CN109742928A (en) * | 2019-01-24 | 2019-05-10 | 海天塑机集团有限公司 | A special power supply device for injection molding machine controller |
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Application publication date: 20110202 |