CN201853662U - Electromagnetic tripping mechanism for leakage breaker - Google Patents

Abstract

The utility model relates to a tripping mechanism for a leakage breaker, in particular to an electromagnetic tripping mechanism for the leakage breaker, which is suitable to be used in a three-phase circuit. The electromagnetic tripping mechanism for the leakage breaker has the following structure that a lock catch is arranged on the front side of an L-shaped base by an elastic shaft; under the action of the elastic shaft, the lock catch is locked along the clockwise direction; the lock catch is provided with an operating handle, a lever and a right-angle latch; a tripping buckle is arranged on the front side of the L-shaped base by two guide shafts in the horizontal direction, so that the tripping buckle can move right and left; one end of a reset spring is connected onto the L-shaped base; the other end of the reset spring is connected onto the tripping buckle; the lever is pressed at the left end of the tripping buckle; the tripping buckle is provided with a bevel-edged clamping groove; the right angle latch is clamped in the bevel-edged clamping groove; the tripping buckle is provided with a push rod; the push rod protrudes out of the back of the L-shaped base; the bottom surface of the L-shaped base is provided with a tripper; and an electromagnet, an armature, a return spring, a bracket and an ejector rod are arranged in the tripper. The tripping mechanism for the leakage breaker has a simple structure and a small volume, is convenient to install, is easy to operate and has a higher speed and a lower cost.

Description

The electromagnetic-type leakage circuit breaker tripping mechanism

Technical field

The utility model is a kind of residual current circuit breaker tripping mechanism, particularly a kind of electromagnetic-type leakage circuit breaker tripping mechanism that is applicable in the three-phase circuit.

Background technology

Residual current circuit breaker mainly plays the effect of cutting off the electricity supply, prevent electric shock accidents when person electric shock or electric leakage take place rapidly, and the electric leakage that has is protected to open circuit and also had overload, short-circuit protection concurrently, or is used for frequently not opening, having a power failure motivation.Tripping mechanism is a vitals in the residual current circuit breaker, and the sensitivity of tripping mechanism directly has influence on the opening performance of residual current circuit breaker.Existing residual current circuit breaker tripping mechanism, volume is bigger, and fault is more, and inconvenient maintenance is installed and is adjusted trouble, the stability and the poor reliability of machinery.

Summary of the invention

The purpose of this utility model is in order to overcome the defective that existing residual current circuit breaker tripping mechanism volume is big, trouble, poor stability are installed, to invent a kind of highly sensitive electromagnetic-type leakage circuit breaker tripping mechanism.

The purpose of this utility model realizes as follows: described electromagnetic-type leakage circuit breaker tripping mechanism, form by snap close, tripping, recovery spring, release and L type base;

Snap close is located at the front of L type base by elastic shaft, and under the effect of elastic shaft, snap close is along the locking of up time direction, and snap close is provided with lever, lever and right angle latch;

The front of L type base is located in tripping by two axis of guides of horizontal direction, but make the tripping move left and right, an end that recovers spring is connected on the L type base, the other end is connected in the tripping, lever is pressed in the left end of tripping, and tripping is provided with the hypotenuse draw-in groove, and the right angle latch is stuck in the hypotenuse draw-in groove, tripping is provided with push rod, and push rod passes from the back side of L type base;

The bottom surface of L type base is provided with release, be provided with electromagnet, armature, return spring, support and push rod in the release, electromagnet and return spring are located on the support, armature is hinged on the support, electromagnet holds an end of armature, return spring is connected the other end of armature, and push rod is pressed on the armature, and outstanding and relative with lever from the top of release.

Good effect of the present utility model is as follows: the utility model is simple in structure, and volume is little, and is easy for installation, easy to operate, and speed is faster, and cost is lower.

Description of drawings

Fig. 1 is the utility model master TV structure figure

Fig. 2 is the utility model plan structure figure

Fig. 3 is the utility model "on" position figure

Fig. 4 is the utility model trip status figure

Among the figure: 2 trippings 3 of 1 snap close recover spring

4 release 5L type bases, 6 elastic shafts

7 levers, 8 levers, 9 right angle latches

10 axis of guides, 11 hypotenuse draw-in grooves, 12 push rods

13 electromagnet, 14 armature, 15 return springs

16 supports, 17 push rods, 18 draw bars

Embodiment

Shown in Figure 2 as Fig. 1, described electromagnetic-type leakage circuit breaker tripping mechanism is made up of snap close 1, tripping 2, recovery spring 3, release 4 and L type base 5;

Snap close 1 is located at the front of L type base 5 by elastic shaft 6, and under the effect of elastic shaft 6, snap close 1 is along the locking of up time direction, and snap close 1 is provided with lever 7, lever 8 and right angle latch 9;

The front of L type base 5 is located in tripping 2 by two axis of guides 10 of horizontal direction, but make tripping 2 move left and right, an end that recovers spring 3 is connected on the L type base 5, the other end is connected in the tripping 2, and lever 8 is pressed in the left end of tripping 2, and tripping 2 is provided with hypotenuse draw-in groove 11, right angle latch 9 is stuck in the hypotenuse draw-in groove 11, at this moment be the "on" position (see figure 3), tripping 2 is provided with push rod 12, and push rod 12 passes from the back side of L type base 5; When lifting lever 7, tripping 2 is moved to the left under the effect that recovers spring 3, and right angle latch 9 is dropped on the hypotenuse on hypotenuse draw-in groove 11 right sides, at this moment is the trip status (see figure 4), when promoting push rod 12 to the right, right angle latch 9 will be got back in the hypotenuse draw-in groove 11 along this hypotenuse.

The bottom surface of L type base 5 is provided with release 4, be provided with electromagnet 13, armature 14, return spring 15, support 16 and push rod 17 in the release 4, electromagnet 13 and return spring 15 are located on the support 16, armature 14 is hinged on the support 16, electromagnet 13 holds an end of armature 14, return spring 15 is connected the other end of armature 14, and push rod 17 is pressed on the armature 14, and outstanding and relative with lever 7 from the top of release 4.

When the circuit operate as normal, this tripping mechanism is in "on" position, and at this moment right angle latch 9 is stuck in the hypotenuse draw-in groove 11, makes snap close 1 catch on tripping 2, recover spring 3 and be subjected to stretch (as shown in Figure 2) at this moment, when occurring leakage current or fault current in the circuit, after snap close 1 is subjected to the external force effect, snap close 1 and tripping 2 are threaded off, recovering under spring 3 effects, tripping 2 will be to left movement, and the draw bar 18 on the 2 pulling circuit breakers of tripping at this moment makes circuit breaker open circuit (as shown in Figure 3) to left movement.

Claims (1)

1. electromagnetic-type leakage circuit breaker tripping mechanism is characterized in that: described electromagnetic-type leakage circuit breaker tripping mechanism, form by snap close, tripping, recovery spring, release and L type base;

Snap close is located at the front of L type base by elastic shaft, and under the effect of elastic shaft, snap close is along the locking of up time direction, and snap close is provided with lever, lever and right angle latch;

The front of L type base is located in tripping by two axis of guides of horizontal direction, but make the tripping move left and right, an end that recovers spring is connected on the L type base, the other end is connected in the tripping, lever is pressed in the left end of tripping, and tripping is provided with the hypotenuse draw-in groove, and the right angle latch is stuck in the hypotenuse draw-in groove, tripping is provided with push rod, and push rod passes from the back side of L type base;

The bottom surface of L type base is provided with release, be provided with electromagnet, armature, return spring, support and push rod in the release, electromagnet and return spring are located on the support, armature is hinged on the support, electromagnet holds an end of armature, return spring is connected the other end of armature, and push rod is pressed on the armature, and outstanding and relative with lever from the top of release.

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