CN203398018U - Power saver of AC contactor - Google Patents
Power saver of AC contactor Download PDFInfo
- Publication number
- CN203398018U CN203398018U CN201320420722.3U CN201320420722U CN203398018U CN 203398018 U CN203398018 U CN 203398018U CN 201320420722 U CN201320420722 U CN 201320420722U CN 203398018 U CN203398018 U CN 203398018U
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- power
- contactor
- circuit
- pulse width
- output
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Abstract
The utility model relates to a control component of an AC contactor, specifically to a power saver of the AC contactor. The power saver comprises an AC/DC converter connecting an AC input power supply. The output of the power supply of an AC/DC converter is divided into two branches, of which one powers a contactor solenoid through a power output circuit, and the other one powers a pulse width modulator via a power processor. The control output terminal of the pulse width modulator is connected to the power output circuit via a power drive circuit, and the output power of the power output circuit can be adjusted by the change of the output pulse width. The power output circuit and an input line are connected with a voltage detection circuit capable of acquiring the work voltage signals of a contactor solenoid. The power saver greatly reduces the operational energy consumption of an AC contactor. The system is simple in structure, low in cost and high in reliability.
Description
Technical field
The utility model relates to a kind of control assembly of A.C. contactor, is specifically related to a kind of economizer of AC. contactor.
Background technology
A.C. contactor is widely used in low-voltage circuit, is a kind of use safety, and it is convenient to control, and various performances are comparatively ideal low-voltage electrical apparatus all.The operation electromagnetic system of A.C. contactor generally adopts ac control power supply.The rated current that China now produces is in 63A and above big or middle Capacity AC Contactor, and the active power that its operation electromagnetic system consumes when sticking is between several 10W～100W; The reactive power consuming is between tens of watts to hundreds of watts.Conventional AC contactor is on the operation principle based on " energising adhesive; charged maintenance, power-off discharges ", for realizing its work technical process, design and adopted corresponding structure, in running, magnetic hysteresis loss and eddy current loss in iron core and short-circuited conducting sleeve account for the more than 90% of total energy consumption, and power factor is low, noise is large, coil temperature rise is high, has strengthened the electric energy loss on power network line, has reduced the useful life of contactor line bag.The rated current that China now produces is at present in 63A and above big or middle Capacity AC Contactor, and the active power that its operation electromagnetic system consumes when sticking is between several 10W～100W; The reactive power consuming is between tens of watts to hundreds of watts.Consume active power distribution be roughly: unshakable in one's determination 65%～75%, short-circuited conducting sleeve 25%～30%, coil only accounts for 3%～5%.
For energy efficient, the operation power-saving technique that electromagnetic system adopts of Capacity AC Contactor big or middle, normally operated that electromagnetic system changes direct current sticking into by intrinsic alternating current operation or without exciting curent sticking, can save in unshakable in one's determination and short-circuited conducting sleeve and account for most loss powers, thereby obtain higher energy-saving efficiency.Existing battery saving mode need to increase the more outer adsorption devices such as energy-saving coil mostly, and equipment cost is higher, installation and maintenance inconvenience, and reliability also can not be guaranteed.
Summary of the invention
Technical problem to be solved in the utility model is provide a kind of operation energy consumption that can significantly reduce A.C. contactor, and system to form the economizer of AC. contactor simple, cost is low, reliability is high.
Economizer of AC. contactor of the present utility model includes the AC/DC transducer that can connect ac-input power supply, the power supply output of AC/DC transducer is divided into two-way, one tunnel is the power supply of contactor line bag through power output circuit, and another road is a pulse width modulator power supply through a power processor; The control output end of described pulse width modulator is connected to power output circuit through power driving circuit, and can pass through the power output of the variation regulating power output circuit of output pulse width; On described power output circuit and incoming line, be also connected with a voltage detecting circuit that can gather the operating voltage signal of contactor line bag feedback, the signal output part of voltage detecting circuit is connected to pulse width modulator, as the adjusting foundation of pulse width modulator.
Described ac-input power supply is connected with AC/DC transducer with secondary surge restraint circuit through one-level surge restraint circuit, common mode filtering circuit successively.
Described power output circuit connects contactor line bag through afterflow protection and surge restraint circuit.
Advantage applies of the present utility model exists:
1, operation voltage value is adjustable, apply pulse DC circuit changes its impulse wave width, can regulate arbitrarily high moving magnitude of voltage and the low holding voltage value of inhaling, make it to be adjusted into the optimum value of adapted A.C. contactor operation electromagnetic system requirement, thereby greatly reduce work energy consumption.
2, system formation is simple, cost is low, is convenient to installation and maintenance, and reliability is high.
3, the application of electronic technology makes can increase easily contactor main-circuit protection function in power save circuit, as under voltage protection, overvoltage protection, phase sequence, open phase protection and earth leakage protective etc., further improves the functional reliability of A.C. contactor.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the utility model embodiment.
Embodiment
As shown in the figure, this economizer of AC. contactor includes the AC/DC transducer that can connect ac-input power supply, it is the power supply of contactor line bag through power output circuit that the power supply output of AC/DC transducer is divided into two-way ，Yi road, and another road is a pulse width modulator power supply through a power processor; The control output end of described pulse width modulator is connected to power output circuit through power driving circuit, and can pass through the power output of the variation regulating power output circuit of output pulse width; On described power output circuit and incoming line, be also connected with a voltage detecting circuit that can gather the operating voltage signal of contactor line bag feedback, the signal output part of voltage detecting circuit is connected to pulse width modulator, as the adjusting foundation of pulse width modulator.Described ac-input power supply is connected with AC/DC transducer with secondary surge restraint circuit through one-level surge restraint circuit, common mode filtering circuit successively.Described power output circuit connects contactor line bag through afterflow protection and surge restraint circuit.
The operation principle of the utility model embodiment is as follows:
1, AC220V or 380V voltage, through Surge suppression, are considered the circuit such as ripple and are converted AC power to direct current.
2, by power processor, supplying with pulse width modulator powers.
3, pulse width modulator is beaten very widely in the moment of switching on by pulsewidth, by power drive and power amplification, exports the high direct voltage of a 200V left and right, starts fast the adhesive of line bag.
4,, according to the internal resistance size of contactor line bag, by voltage detecting circuit feedback voltage signal, high-voltage high-speed is converted to suitable voltage and the electric current that can maintain contactor adhesive within a few tens of milliseconds.There is significantly the advantages such as energy-conservation (average power saving rate more than 85%), eliminate the noise (below 25dB, people's ear be can't hear sound), power factor high (approaching 1), coil temperature rise are low.
5, by voltage detecting, constantly feed back the size of pick-up voltage, constantly adjust suitable pick-up voltage and electric current, thereby guarantee the reliable adhesive of contactor.
6, defencive function: in order to make the reliable adhesive of contactor guarantee all electronic unit failsafes, be provided with the protective circuits such as surge protection in system.
Claims (3)
1. an economizer of AC. contactor, it is characterized in that: it includes the AC/DC transducer that can connect ac-input power supply, the power supply output of AC/DC transducer is divided into two-way, one tunnel is the power supply of contactor line bag through power output circuit, and another road is a pulse width modulator power supply through a power processor; The control output end of described pulse width modulator is connected to power output circuit through power driving circuit, and can pass through the power output of the variation regulating power output circuit of output pulse width; On described power output circuit and incoming line, be also connected with a voltage detecting circuit that can gather the operating voltage signal of contactor line bag feedback, the signal output part of voltage detecting circuit is connected to pulse width modulator.
2. economizer of AC. contactor according to claim 1, is characterized in that: described ac-input power supply is connected with AC/DC transducer with secondary surge restraint circuit through one-level surge restraint circuit, common mode filtering circuit successively.
3. economizer of AC. contactor according to claim 1 and 2, is characterized in that: described power output circuit connects contactor line bag through afterflow protection and surge restraint circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420722.3U CN203398018U (en) | 2013-07-15 | 2013-07-15 | Power saver of AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420722.3U CN203398018U (en) | 2013-07-15 | 2013-07-15 | Power saver of AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398018U true CN203398018U (en) | 2014-01-15 |
Family
ID=49909531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320420722.3U Expired - Lifetime CN203398018U (en) | 2013-07-15 | 2013-07-15 | Power saver of AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816508A (en) * | 2020-07-21 | 2020-10-23 | 贵州天义电器有限责任公司 | Contactor coil driving hybrid integrated circuit based on thick film technology |
-
2013
- 2013-07-15 CN CN201320420722.3U patent/CN203398018U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816508A (en) * | 2020-07-21 | 2020-10-23 | 贵州天义电器有限责任公司 | Contactor coil driving hybrid integrated circuit based on thick film technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160905 Address after: Xinba Daquan 212211 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. Address before: 212211 Jiangsu city of Zhenjiang province Yangzhong City Road Daquan Xinba Science Park No. 11 Patentee before: Jiangsu Daqo Kaifan Electrical Appliance Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Daquan Kaifan switch Co.,Ltd. Address before: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |