CN2074053U

CN2074053U - Electricity-saving a.c. contactor

Info

Publication number: CN2074053U
Application number: CN 90217463
Authority: CN
Inventors: 郭淦生; 刘启云
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-03
Filing date: 1990-08-03
Publication date: 1991-03-27

Abstract

The utility model relates to an electricity-saving AC contactor, which utilizes a mechanical mode to ensure operation and consequently achieves no power consumption when operation. Two coils (a starting electromagnetic coil 5 and a stopping electromagnetic coil 11) controlling an armature to drive a bracket to motion is designed in the device to switch on or switch off a main contact; the conversion of a normally-closed contact on an auxiliary contact in a starting and opening circuit is utilized to ensure the device to consume power supply only at starting and stopping moments; consequently, the purpose that the AC contactor does not consume electric power when operation is achieved.

Description

Electricity-saving A.C. contactor

The utility model relates to a kind of A.C. contactor, is characterized in utilizing mechanical system (spring tension) to guarantee contactor adhesive operation, thereby reaches a kind of A.C. contactor of contactor not power consumption of solenoid when adhesive moves.

Existing A.C. contactor guarantees contactor adhesive operation with electromagnetic force, in running, the necessary consumed power of the solenoid of contactor, in order to save electric energy, adopted ac contactor silent power-saving running scheme at present, utilized electromagnetic force to guarantee what A.C. contactor moved but this technology is still.

The purpose of this utility model is to provide a kind of economize on electricity A.C. contactor, when the A.C. contactor adhesive moves, cut off the pull-in winding power supply simultaneously, make contactor be in the adhesive operation conditions, thereby reach the purpose of A.C. contactor not power consumption of when operation with spring tension.

The purpose of this utility model is achieved in that in the economize on electricity A.C. contactor and designs the tubular type electromagnet that two coils are arranged, one is to start solenoid, one is to stop solenoid, two solenoids are used to control armature and drive support and move and be switched on or switched off the main contacts circuit, for guaranteeing the main contacts contact pressure, between support and shell, designed the top spring, after the actuating coil outage, because the tension force of top spring, guarantee the contact pressure of main contacts, thereby realized the purpose of A.C. contactor not power consumption of actuating coil when operation.

The utility model is compared with ac contactor silent power-saving running device, have simple in structure, cost is low, the economize on electricity outstanding feature.

Detailed enforcement of the present utility model will provide in conjunction with the accompanying drawings:

Fig. 1 is the structure chart (being in running status) of economize on electricity A.C. contactor;

Fig. 2 is the control circuit figure of economize on electricity A.C. contactor;

Sequence number explanation among the figure: 1. support; 2. top spring; 3. shell; 4. armature; 5. startup solenoid; 6. tubular type magnetic conductor; 7. coil rack; 8. damping limit spring; 9. main contacts; 10. stage clip; 11. stop solenoid; 12. thermal relay; 13. motor; 14. fusible link; 15. start button; 16. normally closed auxiliary contact; 17. stop button; 18. often drive auxiliary contact; 19. thermal relay normally opened contact.

In the shell (3) of economize on electricity A.C. contactor, tubular type magnetic conductor (6) is housed, start solenoid (5), stop solenoid (11), the tubular type electromagnet that coil rack (7) and armature (4) are formed, tubular type magnetic conductor (6) is fixed on the shell (3), start solenoid (5) and stop solenoid (11) totally one coil rack (7) be fixed on the tubular type magnetic conductor (6), armature (4) is fixed on the support (1), support (1) can move and control being switched on or switched off of main contacts (9) in shell (3) guide groove, spring (2) one ends in top are fixed on the shell (3), and an end is fixed on the support (1).

When contactor is in when stopping off-state, as need starter motor M(13) time, press start button (15), power supply is connected by normally closed auxiliary contact (16) and is started solenoid (5), armature (4) drives support (1) and top spring (2) and support (1) under the effect of electromagnetic force link moves upward, main contacts (9) is connected, contactor is in running status, contactor normally closed auxiliary contact (16) disconnects the power supply that starts solenoid (5) simultaneously, because the tension force of top spring (2) makes main contacts (9) be in work under the good contact condition, only starting the moment consumed power and start solenoid (5), not consuming electric power during operation.When need stop motor M (13), press stop button (17), because contactor has been in running status, it is closed often to drive auxiliary contact (18), power supply is by often opening auxiliary contact (18) connection stopping solenoid (11), armature (4) drives support (1) and moves downward under the effect of electromagnetic force, main contacts (9) disconnects, and motor M (13) is out of service.Simultaneously, normally closed auxiliary contact (16) recovers normally off, often drives auxiliary contact (18) and recovers normally open.

The best equipment of implementing to be adapted to control single motor operation of the present utility model.

Claims

1, a kind of shell that contains, coil rack, solenoid, magnet, support, the economize on electricity A.C. contactor of contact, power supply produces electromagnetic force by solenoid and drives being switched on or switched off of support motion control contact, feature of the present utility model is that tubular type magnetic conductor (6) is housed in shell (3), start solenoid (5), stop solenoid (11), the tubular type electromagnet that coil rack (7) and armature (4) are formed, tubular type magnetic conductor (6) is fixed on the shell (3), start solenoid (5) and stop solenoid (11) totally one coil rack (7) be fixed on the tubular type magnetic conductor (6), armature (4) is fixed on the support (1), support (1) can move and control being switched on or switched off of main contacts (9) in shell (3) guide groove, spring (2) one ends in top are fixed on the shell (3), and an end is fixed on the support (1).