CN2138342Y

CN2138342Y - Energy saving noiseless electromagnetically acting device of AC contactor

Info

Publication number: CN2138342Y
Application number: CN 92209359
Authority: CN
Inventors: 王伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-07
Filing date: 1992-05-07
Publication date: 1993-07-14
Anticipated expiration: 2002-05-07

Abstract

The utility model relates to an energy saving noiseless electromagnetic acting device for AC contactors, apparatus which is composed of the contact head switch system and the electromagnetic acting system of an AC contactor two parts. The device has no running noise; compared with the same type of old products, the power saving is more than 90%; the weight is decreased by 90%; the manufacturing cost is reduced by 25%; the wiring installing mode is constant; the service life is prolonged.

Description

Energy saving noiseless electromagnetically acting device of AC contactor

The utility model relates to a kind of A.C. contactor economize on electricity noise elimination electromagnetism powder operation device.

At present, industrial enterprise a large amount of A.C. contactors that use itself all have a lot of disadvantages, big as noise, self energy consumption height, the easy scaling loss in contact, coil Wen Kaigao, influence the life-span, voltage ripple of power network causes misoperation or scaling loss coil, Electromagnetically-operating system cost of manufacture height, small product size is big, and weight is big or the like.

The research the purpose of this utility model is: provide a kind of novel power saving, noise elimination, A.C. contactor electromagnetism powder operation device cheaply, problems such as former A.C. contactor big energy-consuming, noise are big to solve, cost height.

The utility model mainly is made up of A.C. contactor economize on electricity, noise elimination operating control device and electromagnetism actuating system two parts.Wherein the control system of A.C. contactor is by the reaction spring that resets, outlet connecting plate, transmission mechanism, contact system, formations such as arc-extinguish chamber; Another part electromagnetism actuating system is by economize on electricity noise elimination operating control device, and auxiliary switch is kept pull-in winding, binding post, and switch baseplate, power transmission shaft, armature connecting plate etc. are partly formed.When A.C. contactor send electricity, electric current is through control transformer BT winding 1 decompression current limliting, starting diode D ₁Rectification, A.C. contactor C normally closed contact is to the starting winding 2 of C, to power supply N(or B) end, the magnetization energy of electromagnet C ' closing coil 2 instantaneous generations, make armature and armature connecting plate drive that power transmission shaft and contact transmission mechanism are coaxial to be connected rotation, so in its action, also driven the switch contact system motion, finished the switch closing operation.When solenoid got electric adhesive, control transformer BT winding 3 outputs one low pressure was through D ₂Rectification is connected to A.C. contactor, and solenoid is kept winding and provided a faint electric current (this voltage is about 3-5V) of keeping for closed electromagnet, after the switch starting adhesive, and D ₁The rectification closing circuit is because contact assists the disconnection of normally closed contact C and out of service, and switch enters the silent power-saving running status, when cutting off the electricity supply, owing to keep pull-in winding 2, no current passes through, so its suction between electromagnet yoke (13) and armature rapidly disappears the switch fast trip.

Characteristics of the present utility model are: the operation noiselessness, compare economize on electricity more than 90% with similar old product, and weight saving 40%, manufacturing cost reduces by 25%, and the wiring mounting means is constant, and prolong useful life greatly.

Description of drawings: Fig. 1 is the control circuit schematic diagram; Fig. 2 is an A.C. contactor switch front layout plan; Fig. 3 is electromagnetism actuating system figure.Wherein: 1, arc-extinguish chamber 2, economize on electricity noise elimination controller 3, auxiliary contact switch 4, magnetic system install that base plate 5, armature bearing pin are spacing 6, sucking coil 7, binding post 8, switch fixed base plate 9, power transmission shaft 10, armature connect guide plate 11, the reaction spring 12 that resets, outlet connecting plate 13, conduction axis 14, contact system.

Preferred embodiment of the utility model is: this device mainly contains the two large divisions and forms.A part is the switch contacts system of A.C. contactor, and its composition is by the reaction spring that resets (11), outlet connecting plate (12), transmission mechanism (13), contact system (14), arc-extinguish chamber formations such as (1).This a part of manufacturing process, technical parameter standard are equal to " air electromagnetic AC contactor " JB2455-78 standard; Its overall structure all is fixed on the switch fixed base plate (8) with screw, conduction axis of its contact mechanism (13) and coaxial connection of electromagnetism actuating part power transmission shaft (9), and connected mode is that screw is fixed.Another part is the electromagnetism actuating system, and it is kept parts such as sucking coil (6), binding post (7), switch fixed base plate (8), power transmission shaft (9), rank connecting plate (10) and form mainly by economize on electricity noise elimination operation controller (2), auxiliary switch (3).Its economize on electricity noise elimination controller (2) is connected with bolt with electromagnetic system base plate (4), and auxiliary switch (3) is connected with bolt with electromagnetic system base plate (4), and last electromagnet yoke is connected with pin with the armature connecting plate; The lower electromagnet yoke is connected with bolt with the electromagnetic system base plate.Electromagnetic system base plate (4) is connected with bolt with switch baseplate (8), and the armature connecting plate is connected with power transmission shaft (9) with the electromagnetic system base plate.Sound-deadening electricity-saving device control circuit annexation is: starting diode D ₁Anode and control transformer BT(I) the winding tail is connected D ₁Negative electrode is connected with auxiliary normally closed contact C, and the other end of normally closed contact C is connected D with the head of contactor solenoid actuation winding (I) ₂The anode of diode is connected D with the tail of BT winding (II) ₃Diode anode is connected with the tail of BT winding (III).D ₂, D ₃The negative electrode of diode connects together and is connected with (II) winding head of contactor solenoid C ', and the tail of (I) winding of contactor solenoid C ' is connected with the tail of BT control transformer winding (III), is connected on the N(B of power supply) end.

Claims

1, a kind of A.C. contactor economize on electricity noise elimination electromagnetism powder operation device, be by A.C. contactor switch contacts system, electromagnetism powder operation device system two parts are formed, it is characterized in that: the switch contacts system of A.C. contactor is by the reaction spring that resets, formations such as outlet connecting plate, transmission mechanism, contact system, arc-extinguish chamber; Its overall structure all is fixed on the switch fixed base plate with screw, the conduction axis of contact mechanism and electromagnetism actuating part coaxial linking to each other of power transmission shaft; The electromagnetism actuating system, mainly by economize on electricity noise elimination operation controller (containing control circuit), auxiliary switch, keep compositions such as sucking coil, binding post, switch fixed base plate, power transmission shaft, armature connecting plate, its economize on electricity noise elimination controller, auxiliary switch, lower electromagnet yoke base plate is connected with bolt with switch baseplate, and the armature connecting plate is connected with power transmission shaft with the electromagnetic system base plate, and sound-deadening electricity-saving device control circuit annexation is: diode D ₁Negative electrode links to each other D with control transformer BT (I) winding tail ₁Negative electrode is connected with auxiliary normally closed contact C, and the other end of normally closed contact C is connected D with the head of contactor solenoid actuation winding (I) ₂The anode of diode is connected D with the tail of BT winding (II) ₃Diode anode is connected with the tail of BT winding (III); D ₂, D ₃The negative electrode of diode connects together and is connected with (II) winding head of contactor solenoid C.