CN2197740Y

CN2197740Y - Contactor

Info

Publication number: CN2197740Y
Application number: CN 94206227
Authority: CN
Inventors: 王富昌
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-27
Filing date: 1994-02-27
Publication date: 1995-05-17
Anticipated expiration: 2004-02-27

Abstract

The utility model discloses a contactor, particularly an electromagnetic system of a high efficiency energy saving contactor, comprising a control assembly, an AC portion and a DC portion. The contactor is also provided with an electromagnetic portion which comprises a permanent magnet 4, electromagnetic coil 5, 7 and soft magnets 2, 3, and the electromagnetic portion is provided with a circular coaxial structure. The utility model changes the electromagnetic system of the original contactors, the principle is that the motion direction of the permanent magnet can be changed with changing the current direction in the electromagnetic coil 5, 7, and two steady states can be kept by the attraction force between the soft magnets 2, 3 and the 4. [66%] The utility model is characterized in that the contactor has little electricity consumption, low noise and no temperature rising in operation, and the control power supply is general to AC and DC.

Description

Contactor

A kind of contactor refers in particular to a kind of high-efficiency and energy-saving type contactor.This contactor belongs to the electrical control device, is widely used in the electric equipment field.

Present contactor is strong with its overload capacity, reliable operation, be easy to advantages such as installations, maintenance and be used widely, but has the following disadvantages simultaneously: (3) temperature rise greatly of big (2) noise of (1) energy consumption.

The purpose of this utility model is to provide at the deficiency of above-mentioned contactor the contactor of the new construction that a kind of energy consumption is little, noise is low, temperature rise is little.

The utility model comprises control assembly, AC portion, direct current component, main feature is: this contactor has an electromagnet portion, described electromagnet portion comprises permanent magnet (4), solenoid (5) and (7), soft magnetic bodies (2) and (3), electromagnet portion is the circular coaxial structure, and above-mentioned each parts are on same axis; Coil (5) and (7) are the coils of the directionally controlled system assembly control of direct current on it.In an embodiment, described contactor has a non magnetic drive link (1), soft magnetic bodies (2) and (3) are disc, solenoid (5) and (7) in two grooves of skeleton (10), comprise disc non-magnetic pad (8) and (9), ring-type soft magnetic bodies (11), pivot pin (12) and moving contact support (13) respectively in addition.

Further narrate the utility model below in conjunction with drawings and Examples.

Fig. 1 is the schematic diagram of Electromagnetic Drive part of the present utility model.

Fig. 2 is the structure chart of an embodiment of the present utility model.

This electromagnet portion is the circular coaxial structure, and each structural member is all on same axis.Control assembly is not provide in the functional circuit.When the power input of control assembly connects electricity, solenoid (5) and (7) are fed the direct current of a certain direction, coil (7) produces the polarity of inhaling mutually with the S utmost point of permanent magnet (4), the polarity that the N utmost point of coil (5) generation and permanent magnet (4) repels each other, thereby permanent magnet is moved downward, meanwhile the control assembly poultry can be prepared for permanent magnet returns, no current in the coil after the permanent magnet motion finishes, permanent magnet is pull-in on the soft magnetic bodies (3) with very strong suction and keeps this stable state;

The coil of when the power input no-voltage of control assembly, institute's electric power storage can reversed polarity being fed, the polarity that the S utmost point of coil (7) generation and permanent magnet (4) repels each other, coil (5) produces the polarity of inhaling mutually with the N utmost point, permanent magnet is moved upward and be pull-in on soft magnetic bodies (2) above keep this stable state, drive contact by permanent magnet and realize the contactor action.The permanent magnet motion is all finished in very short time, and the marquis can not rest between two stable states when any.

Fig. 2 is that details are as follows for the embodiment of the utility model on the CJ10-40 A.C. contactor:

(1) is non magnetic drive link, be used for permanent magnet (4) motoring torque is delivered to moving contact, (2) and (3) be the disc soft magnetic bodies, produce closure/two stable states of release that suction keeps in touch device with permanent magnet (4), solenoid (5) and (7) are respectively in two grooves of skeleton (10), (8) and (9) be the disc non-magnetic pad, be used for limiting the minimum magnetic gap between (4) and (2) and (3), simultaneously can play the effect that reduces to impact again, (11) be the ring-type soft magnetic bodies, be used to reduce outer magnetic gap, increase stable state and keep moment, (4) (8) (9) are one by (1) riveted, are connected with moving contact support (13) by pivot pin (12) by the hole on (1), the Motion Transmission of (4) are finished the action of contactor to moving contact.

The utility model has the advantages that: electromagnetic system consumed power not after finishing contact closure/release movement, keep closure/two stable states of release by permanent magnet, cancel original return spring group, noise is little not to have temperature rise.Installation and use and traditional contactor are identical.The control power supply does not have the branch of alternating current-direct current type, can directly replace as long as electric pressure is identical.Comparing with energy-saving alternating current contactor does not have auxiliary contact to participate in winding to switch and make work more reliable.In actual use in the past, when the load starting power is very big, can cause electric network electric voltage drop to make contactor under current state, shake the scaling loss contact and shorten the life-span.The utility model is to enter not consumed power of stable state after action, so when electric network electric voltage drop, contactor is not produced any influence, have only when voltage is reduced to a certain threshold values, just to enter release movement, do not produce shake, therefore the useful life that can improve contactor significantly.The utility model does not structurally have antagonistic spring, and it is big that release movement moment and release stable state are kept moment, and it is more reliable to work.

Another advantage of the present utility model is: can avoid causing the load phase shortage because of the contact bonding.Permanent magnet retracts closed stable state to contact immediately in the time can not returning the release stable state because of the contact bonding, thereby avoids the generation of phase shortage accident, guarantees the safety of electrical appliance.

The utility model is in operation and need not power consumption in principle, but has the electric current of keeping of still needing below 0.3 milliampere owing to detect the leakage current of electric current and energy-accumulating element, is a kind of little power consumption power control device.The utility model easy exploiting is in the energy-saving product of CJ10, CJ20 and CJ12 type.Promote the use of the utility model and will bring considerable economic to society.

Claims

1, a kind of contactor, comprise control assembly, AC portion, direct current component, it is characterized in that: this contactor has an electromagnet portion, it comprises permanent magnet (4), solenoid (5) and (7), soft magnetic bodies (2) and (3), electromagnet portion is the circular coaxial structure, and above-mentioned each parts are on same axis; Coil (5) and (7) are the coils of the directionally controlled system assembly control of direct current on it.

2, contactor according to claim 1, it is characterized in that: described contactor has a non magnetic drive link (1), soft magnetic bodies (2) and (3) are disc, solenoid (5) and (7) in two grooves of skeleton (10), also comprise disc non-magnetic pad (8) and (9), ring-type soft magnetic bodies (11), pivot pin (12) and moving contact support (13) respectively.