CN201824540U - Variable frequency electricity economizer of single-phase injection molding machine - Google Patents
Variable frequency electricity economizer of single-phase injection molding machine Download PDFInfo
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- CN201824540U CN201824540U CN2010205760304U CN201020576030U CN201824540U CN 201824540 U CN201824540 U CN 201824540U CN 2010205760304 U CN2010205760304 U CN 2010205760304U CN 201020576030 U CN201020576030 U CN 201020576030U CN 201824540 U CN201824540 U CN 201824540U
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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 utility model relates to a variable frequency electricity economizer of a single-phase injection molding machine, belonging to the field of energy saving and control technology of motors, and comprising an injection molding machine running 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 (60), a capacitor (70), a control circuit (80) and a single-phase power supply contactor (90). The variable frequency electricity economizer of the single-phase injection molding machine is applied on the injection molding machine with an alternating current motor, so that two electricity saving methods including speed regulation for energy saving and peak clipping and valley filling of a power grid can be respectively and simultaneously realized, and 20% to 90% of electricity saving effect can be achieved generally. The variable frequency electricity economizer of the single-phase injection molding machine is simple and convenient in structure, intuitive in metering and obvious in electricity saving effect, and has wide application prospects in the aspect of energy saving of the injection molding machine.
Description
Technical field
The utility model relates to single-phase injection machine frequency-variable energy-saving device, belongs to energy saving motor control technology field, is 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 single-phase AC motor injection machine has become a kind of being seen everywhere, the common universal electromechanical equipment that is used on a large scale.The power consumption of the single-phase AC motor injection machine electric energy energy consumption in the whole nation has relatively occupied suitable ratio.
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.
The utility model content
The purpose of this utility model is the shortcoming that has overcome 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 above-mentioned utility model purpose adopts following technical scheme:
Single-phase injection machine frequency-variable energy-saving device of the present utility model 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 utility model, 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 utility model 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 utility model.
The specific embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
Consult shown in the accompanying drawing, with the injection machine that is applied to 380V, a 50HZ, 3 phases, 15KW 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 380V50HZ 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 380V, 50HZ, 3 phases, 15KW, 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 utility model 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 utility model 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 utility model, 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 utility model 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 utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (2)
1. single-phase injection machine frequency-variable energy-saving device, comprise 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 |
|---|---|---|---|
| CN2010205760304U CN201824540U (en) | 2010-10-25 | 2010-10-25 | Variable frequency electricity economizer of single-phase injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205760304U CN201824540U (en) | 2010-10-25 | 2010-10-25 | Variable frequency electricity economizer of single-phase injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824540U true CN201824540U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205760304U Expired - Fee Related CN201824540U (en) | 2010-10-25 | 2010-10-25 | Variable frequency electricity economizer of single-phase injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824540U (en) |
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2010
- 2010-10-25 CN CN2010205760304U patent/CN201824540U/en not_active Expired - Fee Related
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| 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: 20110511 Termination date: 20131025 |