CN2259683Y

CN2259683Y - Mechanical latching automatic electric appliances

Info

Publication number: CN2259683Y
Application number: CN 95203093
Authority: CN
Inventors: 黄敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-21
Filing date: 1995-02-21
Publication date: 1997-08-13
Anticipated expiration: 2005-02-21

Abstract

The utility model belongs to the technical field of appliance switches and relay engineering, which is a contactor in detail. An intermediate relay, an electromagnet, etc. need an automatic electric apparatus with a self-retaining function in the processes of operation. The utility model is characterized in that on the basis of the existing automatic low-voltage electrical apparatus, a set of self-retaining machine control device is additionally arranged; a ratchet mechanism and a clutch of the utility model are installed on a camshaft; the camshaft is fixed at the both ends of a casing; a transmission rod which is connected with a contact system of the electric apparatus is installed on the upper part of the casing to contact with a tongue piece; a clutch handle is connected with an armature iron of a magnetic system. Compared with the prior art, the utility model can realize mechanical self-retaining automation and has the advantages of energy saving, long service life, etc.

Description

The automatic electrical equipment of mechanical type self-sustaining

The utility model belongs to electric switch, relay class, is specifically related to contactor, and auxiliary relay, time breaker, electromagnet etc. are in operation and need the automatic electrical equipment of self-retaining function.

The electric self-sustaining of the many employings of self-sustaining in existing this electric appliances, especially far distance automatic controlling, because electric self-retaining function is in industrial automation, and purposes is wide in the every profession and trade, and the retention time generally requires long, the long-time both consumed powers of electric self-sustaining that use, device is heated for a long time, cause insulating material aging, short circuit or burn, influence the normal operation of equipment, the mechanical self-sustaining of using at present is manual type, needs closely hand resetting, can't far distance controlled self-sustainingly carry out and remove, can not satisfy the needs of industrial automation.

But the purpose of this utility model has provided the self-sustaining operation of a kind of far distance automatic controlling machinery, and is simple in structure, saves energy, and the automatic electrical equipment that can prolong the useful life of solenoid.

The utility model is to realize like this, the automatic electrical equipment of machinery self-sustaining, comprise the body, magnetic system, contact system and machine control unit, it is characterized in that on the basis of automatic low-voltage electrical apparatus, setting up a cover and be used for self-sustaining machine control unit, the ratchet mechanism of this device, clutch, be contained on the camshaft, two ends that camshaft is fixed on the body, the tongue piece that is contained in body top with drive link that the electrical contact system links and is contained on the little axle contacts, tongue piece contacts with cam, and clutch transmission handle and magnetic system armature link.Cam is under the effect of ratchet mechanism and clutch, and the convex surface of cam and concave surface can be distinguished the contact system of control apparatus.Realize the automation of mechanical self-sustaining electrical equipment.

Description of drawings:

Accompanying drawing 1 is the front view of the mechanical device set up on electrical equipment.

Accompanying drawing 2 is for having used motor positive and negative rotation circuit master control schematic diagram of the present utility model.

Fig. 3 motor wiring schematic diagram.

Label declaration:

1, axle 2, drive link 3, spring 4, transmission handle 5, ratchet 6, ratchet 7, tongue piece 8, cam 9, clutch 10, camshaft 11, spring 12, the body 13, shell fragment 14, screw 15, lever 16, lever head 17, spring.

The utility model will be further described below in conjunction with drawings and Examples, accompanying drawing 1, on electrical equipment, be used for carrying out self-sustaining machine control unit for setting up, drive link 2 on this device links with the electrical contact system and constitutes Direct Action Type electrical equipment, lever head 16 links with the electrical contact system and constitutes rotary electrical equipment, the cam 8 of machine control unit is a biconvex, clutch 9 can be done 90 ° of rotations by transmission handle 4 under the drive of armature, add rated voltage to solenoid, armature is attracted, the action of armature drives clutch, then drive cam rotation, the rotation of cam causes tongue piece gradually by convex surface jack-up, then cause the action of drive link and contact system, after 90 ° of cam rotation, pinned by ratchet 5 with the ratchet 6 of cam unitary rotation, cam can not be reversed, cam is static, contact system is static under the state of being controlled by the cam convex surface, coil losing electricity, armature is released, effect lower armature action at the magnetic system reaction spring is replied, clutch is replied under driving and is state among the figure, for action next time is prepared.Coil once more electric, magnetic system work, armature drives cams 8 by clutch 9 and rotates, static under the effect of ratchet mechanism after rotating 90 °, the control of convex surface to contact system is removed in the rotation of cam, contact system moves; The static back of cam contact system is static.Coil losing electricity, armature drive clutch and reply under the effect of reaction spring, ready for action next time, so far magnetic system finishes action for the second time, and mechanical device is finished an action cycle and has been returned to state in the accompanying drawing 1.

Fig. 2 is the master control circuit schematic diagram of the motor rotating of contact interlocking, and conversing contactor ZC, FC are the utility model, the following working condition (a, b, c are the course of work of circuit behind three input electrical signals) of having used electric wiring of the present utility model as the example narration:

A, press ZA, because normally closed some FC closure, coil ZC gets electric, electrical equipment ZC action: normally closed some ZC disconnects, closed normal battle ZC, electrical equipment ZC self-sustaining, motor D just changes.Button ZA mistake power is upspring, coil ZC dead electricity, and other is constant.

B, motor are pressed FA after just changeing since normal battle ZC, normally closed some FC closure, coil ZC gets electric, electrical equipment ZC action: remove electrical equipment ZC self-sustaining, disconnect normal battle of ZC, motor D stops just to change, closed normally closed some ZC, and coil FC gets, electrical equipment FC action: disconnect normally closed some FC, closure normal battle of FC, motor D counter-rotating, electrical equipment FC self-sustaining, button F A mistake power is upspring, coil FC dead electricity, and other is constant.

(press ZA after the motor counter-rotating, motor D is just changeed, principle is identical with the b process).

Press FA after the counter-rotating of c, motor, because normally closed some ZC closure, coil FC gets electric, electrical equipment FC action: remove electrical equipment FC self-sustaining, disconnect normal battle of FC, and motor D stall, FA mistake figure upsprings, coil FC dead electricity, other is constant.

Utility model compared with prior art has the following advantages: 1, economize on electricity, be in operation, Utility model is compared self-sustaining with existing automatic electric appliance and is not consumed electric energy. 2, prolong on the electrical equipment The service life of solenoid, the single of the solenoid energising because utility model is in operation Time only needs the several seconds just can reach the operation purpose, has avoided existing solenoid long conduction time The insulation ag(e)ing that heating causes greatly reduces the possibility that the solenoid short circuit is burnt.

Claims

1, the automatic electrical equipment of a kind of mechanical self-insurance, comprise the body, magnetic system, contact system and machine control unit, it is characterized in that on the basis of automatic electrical equipment, setting up a cover and be used for self-sustaining machine control unit, the ratchet mechanism 6 of this device, clutch 9, be contained on the camshaft 10, two ends that camshaft 10 is fixed on the body 12, the tongue piece 7 that is contained in body top with drive link 2 that the electrical contact system links and is contained on the little axle contact, and clutch transmission handle 4 and magnetic system armature link.