CN2888637Y

CN2888637Y - Multifunctional switch

Info

Publication number: CN2888637Y
Application number: CN 200520027281
Authority: CN
Inventors: 向永川
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-07
Filing date: 2005-09-07
Publication date: 2007-04-11
Anticipated expiration: 2015-09-07

Abstract

A multifunctional switch composed of shaft, power storage arm, power release arm, raised touch, torsional spring, sears, bimetallic strip, energy storage button, elastic piece, active support, driven support, pressure spring , guiding part, moving contact, stationary contact, connecting terminal, switch knob, fastener, overflowing electric coil, column core, under voltage tripping coil, shunted exciter tripping coil, switch body, connecting rod, arc chute, arc chute, movable close(normal open) contact, flexible cord, display ruler, fuse box, electrical leakage tripping coil and tension spring. The automatic disjunction circuit is used for circuits of motor and heating electrical appliances for starting-stopping power supply is with rapid contact and large over-travel. The connecting terminal, overflowing electric coil, bimetallic strip, flexible cord, guiding part, moving contact, stationary contact and another connecting terminal are to form current path in circuit, and the circuit can be opened by instant breaking the fuse box or energy storage trigger mechanism when in short circuit. The driven support touch close-open-close(normal open) contact and the normal open contact connect shunted exciter tripping coil in series.

Description

Multifunction switch

Technical field

The utility model relates to and a kind ofly is applied to do in motor, the circuit such as heating electrical equipment etc. that power supply opens and closes and the multifunction switch of branch deenergizing automatically; electrical appliance and circuit are had safety protection function, and it belongs to appliance switch and auto-cutout protective device technical field.

Background technology

Inconvenience safety operation when existing knife switch opens and closes motor and heating electrical equipment, contact knife inconvenience close soon soon from, A.C. contactor cost height, install inconvenient.Existing circuit breaker inconvenience is made on-load switch and is is frequently opened and closed circuit, and speed is slow during contact closure, and contact contact pressure instability, and the stroke that exceeds the quata is little, easily causes contact melting welding phenomenon.

Summary of the invention

In order to overcome existing knife switch inconvenience safety operation, A.C. contactor cost height and shortcomings such as inconvenience, the inconvenient frequent keying electrical appliance of circuit breaker to be installed; the utility model provides that a kind of science simple in structure, function are complete, dependable performance, cost are low; frequent electric current of make-and-break can overload, the multifunction switch of short circuit, under-voltage, electric leakage auto-cutout protection.

The technical scheme that its technical problem that solves the utility model adopts is: this multifunction switch comprises axle, the energy storage arm, release the energy arm, protruding touching, torsion spring, button bar, bimetal leaf, the energy storage button, protruding button, shell fragment, the active frame, driven, stage clip, guiding element, moving contact, fixed contact, binding post, release knob, fastener, the overcurrent coil, the pillar iron core, undervoltage trip coil, shunt opening trip coil, switch body, connecting rod, arc-chute, moving (the often opening) contact of closing, flexible cord, show chi, fuse, the electric leakage tripping coil, formations such as extension spring.Release knob is connected with switch body by axle and torsion spring, the release knob connecting lever is linked to be an elbow formula linkage by axle and connecting rod, active frame, release knob also can be fixed by axle and active frame, initiatively frame with driven by axle and torsion spring, stage clip or the flexible connection of extension spring elasticity, driven can be touched and often close and open (moving closing) contact, often opens (moving closing) contact and connects with shunt opening trip coil.In the circuit, binding post, overcurrent coil, bimetal leaf, flexible cord, guiding element, moving contact, fixed contact and another binding post can form a current path, and bimetal leaf also can be fuse or current limit line forms new defencive function.Fastener is connected with switch body by axle and torsion spring or stage clip; fastener can fasten or thread off operating knob or frame initiatively; fastener can be made the motion of pillar iron core by the electromagnetic force of overcurrent coil, undervoltage trip coil, shunt opening trip coil, electric leakage tripping coil; thereby fastener action is fastened or thread off, realize that the overload overcurrent opens circuit and have that inverse time protection characteristic, under voltage decompression open circuit, far distance controlled opens circuit, the safeguard protection of leaking electricity is opened circuit.

When circuit is short-circuited fault, can open circuit by fuse or energy storage trigger mechanism moment, also can set up the current limit line protection, the energy storage trigger mechanism by energy storage button, energy storage arm, releasing can arm, axle, torsion spring, button bar, bimetal leaf etc. constitute.The energy storage arm can arm be made elasticity by axle and torsion spring and flexibly connects with releasing; the two ends of torsion spring can penetrate the energy storage arm respectively and release in two holes of energy arm swing end; all force-applied effect during rotating; energy storage arm and energy storage button are flexibly connected by axle; the energy storage button can be provided with protruding button and shell fragment; release and to be fixed with protruding touching by arm; protruding touching can be provided with the demonstration chi; release and to slide fastening or dropout with button bar in the arm swing termination; button bar is by axle and torsion spring and the flexible connection of switch body elasticity; reset by the torsion spring effect and to fasten that release can arm; thereby thread off because of the short circuit current heated bending is forced to swing that release can arm by bimetal leaf, release can arm by the torsion spring effect to driven rotary oscillation and then moving contact is separated fast with fixed contact, the arc-chute extinguish arcs; short circuit current and electric current are cut off, thereby have protected electrical appliance and circuit.Show that chi outwards protrudes expression and opens circuit because of short trouble, after fixing a breakdown, extract the energy storage button earlier and press energy storage again that multifunction switch can return to normal operating condition.As seen, the utility model can be under the situation of overload, short circuit, under-voltage, electric leakage can auto-cutout, and then in circuit, play the function of safety and protective circuit electrical equipment.

The beneficial effects of the utility model are: this multifunctional switch structure is scientific and reasonable, function is complete, dependable performance, cost are low, easy to install; remote controlled opening circuit; applied widely, can overload, short circuit, under-voltage, electric leakage and auto-cutout protection electrical appliance and circuit.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified

Fig. 1 treats energy storage status architecture principle schematic for first embodiment path of the utility model.

Fig. 2 releases energy off state structural principle schematic diagram for first embodiment of the utility model.

Fig. 3 is second embodiment fuse protection of the utility model structural principle schematic diagram.

Fig. 4 is the 3rd embodiment damp-proof structural principle of a utility model schematic diagram.

Among the figure 1., 2. energy storage arm, 3. releasing can arm, 4. protruding touching, 5. torsion spring, 6. button bar, 7. bimetal leaf, 8. energy storage button, 9. protruding button, 10. shell fragment, 11. framves initiatively, 12. driven, 13. stage clips, 14. guiding elements, 15. moving contact, 16. fixed contacts, 17. binding posts, 18. release knob, 19. fasteners, 20. overcurrent coils, 21. the pillar iron core, 22. undervoltage trip coils, 23. shunt opening trip coils, 24. switch body, 25. connecting rods, 26. arc-chutes, 27. move and close (often opening) contact, 28. flexible cords, 29. show chis, 30. fuse, 31. electric leakage tripping coils, 32. extension springs.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4: release knob (18) is connected with switch body (24) by axle (1) and torsion spring (5), the release knob connecting lever is connected with connecting rod (25), active frame (11) by axle, release knob also can be fixed by axle and active frame, initiatively frame is flexibly connected by axle and torsion spring, stage clip (13) or extension spring (32) elasticity with driven (12), and driven can be touched often to close and open (move and close) contact (27).Fastener (19) is connected with switch body by axle and torsion spring or stage clip, fastener can fasten or thread off release knob or frame initiatively.Energy storage button (8) is connected by axle with energy storage arm (2).The energy storage button can have protruding button (9) and shell fragment (10), the energy storage arm with release can arm (3) is connected by axle and torsion spring, releasing to have protruding touching (4) by arm, protruding touching can connect demonstration chi (29).Release and to fasten with button bar (6) or to thread off by arm, button bar is connected with switch body by axle and torsion spring, button bar can be swung because of the short circuit current heated bending by bimetal leaf (7), release the energy arm thereby thread off, protruding touching forces driven swing to cause moving contact (15) to separate fast with fixed contact (16), arc-chute (26) extinguish arcs, short circuit current is by instantaneous trip.In the circuit; binding post (17), overcurrent coil, bimetal leaf, flexible cord (28), guiding element (14), moving contact, fixed contact and another binding post can form a current path, and bimetal leaf also can be fuse (30) or current limit line forms new defencive function.Thereby fastener can be made pillar iron core (21) because of electromagnetic force be moved and make the fastener action by overcurrent coil (20), undervoltage trip coil (22), shunt opening trip coil (23), electric leakage tripping coil (31), realizes functions such as Long-distance Control and electric leakage safeguard protection and overload, under-voltage release.During short circuit, first and the 3rd embodiment all adopts the energy storage trigger mechanism to release to open circuit moment.Second embodiment adopts fuse (30) to open circuit.

Claims

1. multifunction switch, by axle (1), energy storage arm (2), release energy arm (3), protruding touching (4), torsion spring (5), button bar (6), bimetal leaf (7), energy storage button (8), protruding button (9), shell fragment (10), active frame (11), driven (12), stage clip (13), guiding element (14), moving contact (15), fixed contact (16), binding post (17), release knob (18), fastener (19), overcurrent coil (20), pillar iron core (21), undervoltage trip coil (22), shunt opening trip coil (23), switch body (24), connecting rod (25), arc-chute (26), moving (the often opening) contact (27) of closing, flexible cord (28), show chi (29), fuse (30), electric leakage tripping coil (31), extension spring (32) constitutes, it is characterized in that: driven is touched to close and closes normally opened contact, moving close normally opened contact and connect with shunt opening trip coil, fastener can be by the overcurrent coil, undervoltage trip coil, shunt opening trip coil, electric leakage tripping coil action fastens or threads off, and is opened circuit by fuse or energy storage trigger mechanism moment during short circuit.

2. multifunction switch according to claim 1, it is characterized in that: open circuit by energy storage trigger mechanism moment during short circuit, the energy storage arm can arm be connected by axle and torsion spring with releasing, the energy storage arm is connected by axle with the energy storage button, the energy storage button is provided with protruding button and shell fragment, release and to be fixed with protruding touching by arm, protruding touching is provided with the demonstration chi, release energy arm swing termination and button bar and slide fastening or dropout, button bar is connected with switch body by axle and torsion spring, release the energy arm by bimetal leaf because of thereby the short circuit current heated bending is forced to the swing dropout, release and can be separated to driven rotary oscillation by the torsion spring effect by arm, short circuit current and electric current are cut off.

3. multifunction switch according to claim 1 is characterized in that: opened circuit by fuse moment during short circuit.