CN201956967U - Variable-frequency energy storage power saving device of three phase injection molding machine - Google Patents
Variable-frequency energy storage power saving device of three phase injection molding machine Download PDFInfo
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- CN201956967U CN201956967U CN2010205430696U CN201020543069U CN201956967U CN 201956967 U CN201956967 U CN 201956967U CN 2010205430696 U CN2010205430696 U CN 2010205430696U CN 201020543069 U CN201020543069 U CN 201020543069U CN 201956967 U CN201956967 U CN 201956967U
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Abstract
The utility model relates to a variable-frequency energy storage power saving device of a three phase injection molding machine and belongs to the energy saving and control technical field of motors. The variable-frequency energy storage power saving device comprises an injection molding machine operational parameter detection circuit (10), a three phase rectification circuit (20), a charging circuit (30), a battery (40), a battery switch (50), a three phase inverter (60), a capacitor (70), a control circuit (80) and a three phase power contactor (90). The variable-frequency energy storage power saving device is applied to an injection molding machine with an AC motor, can respectively realize the two energy saving methods of speed regulation energy saving and off peak electricity utilization in power grid at the same time, and generally achieve power saving effect of about 20% to 90%. The variable-frequency energy storage power saving device has the advantages of simple structure, easy measurement and significant power saving effect, and has a good application prospect in the energy saving aspect of injection molding machines.
Description
Technical field
The utility model relates to three-phase injection molding machine frequency conversion energy storage 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 molding machine that has three-phase alternating-current motor.
Background technology
Along with progress, the development of science and technology of society, the three-phase alternating-current motor injection molding 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 three-phase alternating-current motor injection molding 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 molding machine being carried out power-saving Retrofit.
At present, a lot of occasions are arranged, the three-phase alternating-current motor injection molding 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 three-phase injection molding machine of power savings frequency conversion energy storage energy-saving device.
In order to realize that above-mentioned utility model purpose adopts following technical scheme:
Three-phase injection molding machine frequency conversion energy storage energy-saving device of the present utility model comprises injection molding machine operational parameter detection circuit (10), rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90).The external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-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 three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection molding machine operational parameter detection circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the injection molding machine alternating current motor, and injection molding machine operational parameter detection circuit (10) is connected with transducer on being installed on injection molding machine.
Adopted the three-phase injection molding machine frequency conversion energy storage energy-saving device of this utility model, can realize simultaneously that the dynamic speed adjustment of injection molding 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 molding 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 molding 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 three-phase injection molding machine frequency conversion energy storage energy-saving device of the present utility model.
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 molding machine that is applied to 380V, a 50HZ, 3 phases, 15KW is reference, this three-phase injection molding machine frequency conversion energy storage energy-saving device comprises injection molding machine operational parameter detection circuit (10), rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90).The external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-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 three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection molding machine operational parameter detection circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the injection molding machine alternating current motor, and injection molding machine operational parameter detection circuit (10) is connected with transducer on being installed on injection molding machine.
Simultaneously, the power device that is comprised in the three-phase inverter (60) in this three-phase injection molding machine frequency conversion energy storage 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 rectified three-phase circuit (20) through three phase mains 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 rectified three-phase circuit (20), through three-phase inverter (60) direct current is converted into the alternating current of frequency adjustable, and this alternating current is sent to injection molding machine, the different speed of the corresponding injection molding machine of different frequencies.Control circuit (80) receives the feedback signal of injection molding machine operational parameter detection circuit (10) in real time, and through after the computing, to three-phase inverter (60), the corresponding frequency of three-phase inverter (60) output arrives the injection molding machine motor with the output speed signal.The injection molding machine motor speed descends, and will cause the injection molding 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 three-phase inverter (60) by battery (40) by cell switch (50), at this moment, rectified three-phase circuit (20) automatic disconnection, the direct current that battery (40) provides is converted into the alternating current of frequency adjustable through three-phase inverter (60) with direct current, and this alternating current is sent to injection molding machine, the different speed of the corresponding injection molding machine of different frequencies.Control circuit (80) receives the feedback signal of injection molding machine operational parameter detection circuit (10) in real time, and through after the computing, to three-phase inverter (60), the corresponding frequency of three-phase inverter (60) output arrives the injection molding machine motor with the output speed signal.The injection molding machine motor speed descends, and will cause the injection molding machine energy consumption to decline to a great extent.
For the injection molding machine of this 380V, 50HZ, 3 phases, 15KW, motor speed can be regulated according to injection molding 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, three-phase injection molding machine frequency conversion energy storage 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, three-phase injection molding machine frequency conversion energy storage energy-saving device of the present utility model can discharge so that the peak electricity consumption has been avoided in the injection molding machine normal operation from battery (40), and the actual electricity charge wholesale of paying is reduced.
Adopted the three-phase injection molding machine frequency conversion energy storage energy-saving device of this utility model, can realize simultaneously that the dynamic speed adjustment of injection molding 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 molding 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 molding 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 (1)
1. three-phase injection molding machine frequency conversion energy storage energy-saving device, comprise rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90), the external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-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 three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with injection molding machine operational parameter detection circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the injection molding machine alternating current motor, it is characterized in that: also comprise injection molding machine operational parameter detection circuit (10), injection molding machine operational parameter detection circuit (10) is connected with transducer on being installed on injection molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205430696U CN201956967U (en) | 2010-09-26 | 2010-09-26 | Variable-frequency energy storage power saving device of three phase injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205430696U CN201956967U (en) | 2010-09-26 | 2010-09-26 | Variable-frequency energy storage power saving device of three phase injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956967U true CN201956967U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205430696U Expired - Fee Related CN201956967U (en) | 2010-09-26 | 2010-09-26 | Variable-frequency energy storage power saving device of three phase injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956967U (en) |
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2010
- 2010-09-26 CN CN2010205430696U patent/CN201956967U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Lanyiang Electronic Technology Co., Ltd. Assignor: Shanghai Elion Electric Technology Co., Ltd. Contract record no.: 2013310000024 Denomination of utility model: Variable frequency energy storage power-saving device for three-phase injection molding machine Granted publication date: 20110831 License type: Exclusive License Record date: 20130327 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20130926 |