CN2218974Y - Low power consumption ac contactor - Google Patents

Low power consumption ac contactor Download PDF

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Publication number
CN2218974Y
CN2218974Y CN 94242594 CN94242594U CN2218974Y CN 2218974 Y CN2218974 Y CN 2218974Y CN 94242594 CN94242594 CN 94242594 CN 94242594 U CN94242594 U CN 94242594U CN 2218974 Y CN2218974 Y CN 2218974Y
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CN
China
Prior art keywords
contactor
power consumption
coil
main coil
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 94242594
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Chinese (zh)
Inventor
毛荣之
王开来
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Individual
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Individual
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Publication date
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Priority to CN 94242594 priority Critical patent/CN2218974Y/en
Application granted granted Critical
Publication of CN2218974Y publication Critical patent/CN2218974Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a low power consumption AC contactor whose working principle is that the main coil of the contactor is supplied with different voltages at the moment of the close suction of the AC contactor and during the close suction is maintained. The contactor with small power is only provided with one main coil; when the contactor is sucked closely, the main coil is supplied with full voltage; when the close suction is maintained, the voltage is lowered through a decompression capacitor to supply low voltage for the main coil, and thereby, the power consumption and the heating of the low power consumption AC contactor is reduced.

Description

The low-power consumption A.C. contactor
The utility model relates to a kind of low-voltage electrical apparatus-A.C. contactor of routine.
Existing A.C. contactor is made up of iron core, coil, contact etc., by adding alternating voltage to ac contactor coil to produce electromagnetic force, makes its normally open contact adhesive.As everyone knows, in order to make contactor adhesive rapidly, coil should produce enough electromagnetic forces, in case after the adhesive, and in order to keep this adhesive, the required electromagnetic force of contactor just reduces greatly.No matter existing A.C. contactor when adhesive or after adhesive, all adds same voltage on the coil, cause waste of electric energy so on the one hand, make coil heating on the other hand again, can burn coil when serious.
After the purpose of this utility model is to overcome the A.C. contactor adhesive that exists in the prior art, the problem that coil power dissipation is excessive.
In order to achieve the above object, the solution that the utility model adopts is: in A.C. contactor adhesive moment with during keeping adhesive, the main coil of contactor is supplied with different voltage.
For the small-power A.C. contactor, have only a coil, promptly main coil when the contactor adhesive, adds total head to main coil, when keeping adhesive, adds low pressure to main coil.
The small-power contactor is owing to the employing direct-on-line starting, thereby the starting the suction-combining force is big, and adds low-voltage to coil during keeping adhesive, thereby coil current is little.Thereby the power consumption and the heating of contactor have been reduced.
Description of drawings:
Accompanying drawing 1 is the utility model low-power consumption small-power A.C. contactor electrical schematic diagram.
The utility model is described in further detail with reference to the accompanying drawings:
Shown in accompanying drawing 1: in the electrical schematic diagram, C 1Be decompression capacitor, D 1～D 4Be rectifier bridge, J 1Be contactor main coil, J 11Be the normally closed interlock of contactor, R vBe piezo-resistance, with intussusception J 1The high pressure at two ends.A kind of small-power A.C. contactor comprises main coil J 1, its two ends are connected to diode D respectively 1～D 4A, the b two ends of the rectifier bridge of forming, J 1A two ends piezo-resistance also in parallel, rectifier bridge D 1～D 4C end through decompression capacitor C 1And J 1Normally-closed contact J 11After be connected to AC power one end, the d point is connected to the AC power other end.Behind contactor incoming transport voltage, through normally closed contact J 11, rectifier bridge D 1～D 4Make contactor coil J 1Obtain the direct voltage of full-wave rectification, contactor adhesive, after this normally closed interlock J 11Disconnect, thereby power supply is by decompression capacitor C 1And rectifier bridge D 1～D 4To coil J 1Power supply, coil J at this moment 1Under low pressure produce electromagnetic force to keep adhesive.When disconnecting alternating current, coil J 1Dead electricity, contactor discharges.

Claims (1)

1. a small-power A.C. contactor is characterized in that: comprise main coil J 1, its two ends are connected to diode D respectively 1～D 4A, the b two ends of the rectifier bridge of forming, J 1A two ends piezo-resistance R also in parallel v, rectifier bridge D 1～D 4C end through decompression capacitor C 1And J 1Normally-closed contact J 11Be connected to AC power one end after the parallel connection, the d point also is connected on the AC power,
CN 94242594 1994-09-14 1994-09-14 Low power consumption ac contactor Expired - Fee Related CN2218974Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94242594 CN2218974Y (en) 1994-09-14 1994-09-14 Low power consumption ac contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94242594 CN2218974Y (en) 1994-09-14 1994-09-14 Low power consumption ac contactor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN 95240030 Division CN2239074Y (en) 1995-06-24 1995-06-24 Low power loss a.c. contactor

Publications (1)

Publication Number Publication Date
CN2218974Y true CN2218974Y (en) 1996-01-31

Family

ID=33849156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94242594 Expired - Fee Related CN2218974Y (en) 1994-09-14 1994-09-14 Low power consumption ac contactor

Country Status (1)

Country Link
CN (1) CN2218974Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103871783A (en) * 2014-03-31 2014-06-18 宁波市镇海华泰电器厂 Power-saving circuit of alternating current contactor
CN105355514A (en) * 2015-12-14 2016-02-24 宁波市镇海华泰电器厂 Power-saving low-heat silencing alternating-current contactor
CN105553291A (en) * 2015-12-08 2016-05-04 宁波市镇海华泰电器厂 Power-saving AC contactor for AC-DC conversion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103871783A (en) * 2014-03-31 2014-06-18 宁波市镇海华泰电器厂 Power-saving circuit of alternating current contactor
CN105553291A (en) * 2015-12-08 2016-05-04 宁波市镇海华泰电器厂 Power-saving AC contactor for AC-DC conversion
CN105355514A (en) * 2015-12-14 2016-02-24 宁波市镇海华泰电器厂 Power-saving low-heat silencing alternating-current contactor
CN105355514B (en) * 2015-12-14 2018-03-27 宁波市镇海华泰电器厂 The A.C. contactor of economize on electricity low-heat noise elimination

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee