CN2181746Y - Permanent-magnet energy-saving contactor - Google Patents

Permanent-magnet energy-saving contactor Download PDF

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Publication number
CN2181746Y
CN2181746Y CN 93235712 CN93235712U CN2181746Y CN 2181746 Y CN2181746 Y CN 2181746Y CN 93235712 CN93235712 CN 93235712 CN 93235712 U CN93235712 U CN 93235712U CN 2181746 Y CN2181746 Y CN 2181746Y
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CN
China
Prior art keywords
permanent
iron
solenoid
core
contactor
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Revoked
Application number
CN 93235712
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Chinese (zh)
Inventor
白焕文
郭淑珍
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Individual
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Individual
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Priority to CN 93235712 priority Critical patent/CN2181746Y/en
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Publication of CN2181746Y publication Critical patent/CN2181746Y/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Abstract

The utility model relates to a permanent magnet energy-saving contactor, which belongs to the basic electric element relay class. The utility model discloses a two upper and lower iron cores of E font, there is a clearance in the middle of when two iron cores actuation, and lower iron core tongue center middle part is fixed with permanent magnet piece, divides magnetic mechanism, has adopted the silicon controlled rectifier among the control circuit. The utility model discloses economize on electricity more than 99.9%, be a reliability height, longe-lived, with low costs, noiselessness, commonality good, break-make is fast, can automatic disconnection's during the power failure permanent magnetism energy-efficient contactor.

Description

Permanent-magnet energy-saving contactor
The utility model relates to a kind of permanent-magnetic energy-saving contactor, belongs to essential electronic element relay class.
All kinds of contactors in the prior art are in the medium-term and long-term energising of the solenoid of contactor when working, make it produce the stationary magnetic field of a sticking iron core, iron core drives contact and carries out work, power consumption is many during the work of these contactors A.C. contactor that particularly consumption is very big, useful life is short, vibrating noise is big, and owing to adopted precious materials such as a large amount of silicon steel sheets, enamel covered wire, steel loop, cost is higher.In order to overcome these deficiencies, people are devoted to the research of contactor.China's utility application (application number: 91207494.9) disclose a kind of " the little energy consumption contactor of rare earth permanent magnet ", on this contactor, contact-making surface place bonding a slice rare earth permanent magnet piece of lower core, solenoid is connected into a control circuit, though have economize on electricity, noise is low, break-make speed is characteristics faster, but still because of there being following deficiency can't apply so far: 1. the rare earth permanent magnet piece is positioned at the magnetic circuit main flux position of iron core, easily make the permanent magnets demagnetization aging, cause the not firm iron core of main contacts end pressure deficiency or sticking, work unreliable and influenced useful life; 2. the sheet permanent magnets sticks at the contact-making surface place and does not stay the gap, directly hits permanent magnets during the armature adhesive, easily degaussing and damage, cause this contactor life-span short, work is unreliable; 3. control circuit is complicated, and opens control element BG automatically owing to have a power failure 2What adopt is triode, belongs to amplify the class device, is subject to the discharge voltage influence of capacitor C when being operated in the open and close state, easily out of control, the phenomenon that causes power failure and do not open automatically; 4. coil still adopts enamel covered wire, and cost is higher.
The purpose of this utility model is to provide a kind of low energy consumption, high reliability, the life-span is long, cost is low permanent-magnetic energy-saving contactor.
The purpose of this utility model is to realize like this.The utility model includes housing, iron core, solenoid, be provided with contact, stop button, start button, triode, diode, electrochemical capacitor and resistance in its control circuit, it is characterized in that: iron core comprises E font upper core and lower core, one gap is arranged in the middle of during upper and lower iron core adhesive, the tongue of two iron cores in the heart between the position be fixed with permanent magnetic iron block, divide magnetic mechanism, solenoid be enclosed within this tongue in the heart between position and join by contact and resistance, electrochemical capacitor, control circuit comprises the loop that is made of electrochemical capacitor, solenoid, resistance and controllable silicon.
The purpose of this utility model can also reach by following measures: adopt a block permanent magnet piece, also can adopt two or more than two permanent magnetic iron block.
Divide magnetic mechanism can adopt the branch magnetic sheet.
The material of solenoid can be the enamel-cover iron wire, and the material of upper and lower iron core can be electrician's soft iron.
During upper and lower iron core adhesive of the present utility model, the suction-combining force mainly keeps by the magnetic field of permanent magnet.Solenoid can no power, and this is the key point of saves energy, and has only the faint power consumption of resistance in the control circuit, and economize on electricity has reached more than 99.9%.During release, solenoid can feed a pulse current, produces and the reverse electromagnetic field of permanent magnetic field, mainly forms the loop through minute magnetic mechanism and upper and lower iron core, in order to avoid a large amount of contrary magnetic fluxs make its demagnetization aging through permanent magnet, this is a long main cause of the utility model life-span.The utility model has adopted the enamel-cover iron wire, has saved silicon steel sheet and enamel covered wire, and upper and lower iron core has adopted not only good processing but also cheap electrician's soft iron, greatly reduces cost.The utility model has also that noiselessness, versatility are good, break-make speed fast, advantage such as contactor automatic disconnection during grid power blackout.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is an iron core schematic diagram of the present utility model, and Fig. 2 is a kind of control circuit figure of the present utility model.Sequence number is J for the code name of solenoid in Fig. 2 of [ 3 ] 1
The magnetic circuit part: the main magnetic circuit part is made of upper core [ 4 ], lower core [ 5 ], branch magnetic sheet [ 6 ] and permanent magnetic iron block [ 1 ].With lower core [ 5 ], divide magnetic sheet [ 6 ] and permanent magnetic iron block [ 1 ] sticks with glue or other process tightens together, in the middle of then solenoid [ 3 ] being enclosed within, solenoid [ 3 ] pass through contact A and B respectively with resistance R 3, electrochemical capacitor C 2Join.When upper core [ 4 ] and lower core [ 5 ] adhesive, the suction-combining force mainly keeps by the magnetic field of permanent magnets.Solenoid can no power.During release, solenoid [ 3 ] can feed a negative pulse electric current, B end is for just, and the A end produces and the reverse electromagnetic field of permanent magnetic field it for negative, mainly form the loop through a minute magnetic sheet [ 6 ] and upper core [ 4 ], lower core [ 5 ], at this moment, electromagnetic force is offset permanent magnetism power, the effect of spring in addition, two iron cores discharge and separate, and drive the contact action simultaneously.After the release, solenoid [ 3 ] outage, two iron core gaps [ 2 ] increase, the effect of spring in addition, permanent magnetic field is not enough to pull-core, so upper core [ 4 ] just keeps released state with lower core [ 5 ] once separating.When closed again, solenoid can feed a positive pulse electric current again, and the A end is for just, and the B end produces and permanent magnetic field electromagnetic field forward it for negative.At this moment, electromagnetic force adds permanent magnetism power with upper core [ 4 ] and lower core [ 5 ] attraction closure.After the outage, the adhesive that the suction-combining force still relies on the magnetic field of permanent magnet to keep two iron cores drives the contact action.
Circuit part: form by 12 electronic components, i.e. resistance R 1, R 2, R 3, R 4, R 5, electrochemical capacitor C 1, C 2, resistance R 1, R 2, R 3, triode BG 1, controllable silicon SCR 1During the contactor adhesive, press start button AN 2, at this moment the alternating current of contactor rated operational voltage~U is through D 1-4Pulse direct current behind the bridge rectifier, the one tunnel through resistance R 1Flow to triode BG 1Base stage, make its saturation conduction, cause controllable silicon SCR 1Control approximate zero current potential very, not conducting of controllable silicon; Another road is through diode D 5, solenoid J 1Obtain a positive pulse electric current, contactor adhesive work.Work as capacitor C 2When charging reaches the commutating voltage depreciation, solenoid J 1No longer including electric current passes through.
When contactor discharges, press stop button AN 1, at this moment do not have the pulse direct current output after the rectification, in addition diode D 5Every straight effect, triode BG 1The base stage no current pass through, cause it to end not conducting.And this moment controllable silicon SCR 1The control utmost point be subjected to electrochemical capacitor C 2, solenoid J 1, resistance R 2The discharge conducting causes controllable silicon SCR 1Open-minded suddenly.Electrochemical capacitor C 2, solenoid J 1, resistance R 3, controllable silicon SCR 1Form main discharge circuit, make solenoid J 1Obtain a negative pulse electric current, cause that contactor discharges disconnection.Course of action is the same during outage.

Claims (6)

1, a kind of permanent-magnetic energy-saving contactor includes housing, iron core, solenoid [3], is provided with contact J in its control circuit 4-1, stop button AN 1, start button AN 2, triode BG 1, diode, electrochemical capacitor and resistance, it is characterized in that: iron core comprises E font upper core [4] and lower core [5], one gap [2] is arranged in the middle of during upper and lower iron core adhesive, the tongue of two iron cores in the heart between the position be fixed with permanent magnetic iron block [1], divide magnetic mechanism [6], solenoid [3] be enclosed within this tongue in the heart between the position and by contact A and B respectively with resistance R 3, electrochemical capacitor C 2Join, control circuit comprises by electrochemical capacitor C 2, solenoid J 1, resistance R 3And controllable silicon SCR 1The loop that constitutes.
2, contactor according to claim 1 is characterized in that permanent magnetic iron block [ 1 ] can be a block permanent magnet.
3, contactor according to claim 1 is characterized in that permanent magnetic iron block [ 1 ] can be two or more than two permanent magnet.
4, contactor according to claim 1 is characterized in that branch magnetic mechanism [ 6 ] can be the branch magnetic sheet.
5, contactor according to claim 1 is characterized in that solenoid [ 3 ] can adopt the enamel-cover iron wire.
6, contactor according to claim 1 is characterized in that upper core [ 4 ] and lower core [ 5 ] can adopt electrician's soft iron.
CN 93235712 1993-12-24 1993-12-24 Permanent-magnet energy-saving contactor Revoked CN2181746Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93235712 CN2181746Y (en) 1993-12-24 1993-12-24 Permanent-magnet energy-saving contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93235712 CN2181746Y (en) 1993-12-24 1993-12-24 Permanent-magnet energy-saving contactor

Publications (1)

Publication Number Publication Date
CN2181746Y true CN2181746Y (en) 1994-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93235712 Revoked CN2181746Y (en) 1993-12-24 1993-12-24 Permanent-magnet energy-saving contactor

Country Status (1)

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CN (1) CN2181746Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111816506A (en) * 2020-04-24 2020-10-23 张倡议 AC contactor for magnetic prime

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111816506A (en) * 2020-04-24 2020-10-23 张倡议 AC contactor for magnetic prime

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