CN215266148U - Residual current circuit breaker - Google Patents

Abstract

The utility model relates to an electric leakage circuit breaker, contain electric leakage dropout unit and circuit breaker unit, electric leakage dropout unit sets up with circuit breaker unit side by side, be equipped with actuating mechanism in the circuit breaker unit, actuating mechanism contains first hasp, first hasp realizes synchronous action through the connecting rod, electric leakage dropout unit contains the casing, be equipped with electric leakage actuating mechanism and tripping device in the casing, electric leakage actuating mechanism contains the lever, jump the knot, second hasp and torsional spring, tripping device can drive the rotation of second hasp, electric leakage dropout unit separating brake, be equipped with the plectrum on the second hasp, in the connecting rod inserts the casing, when second hasp rotates makes electric leakage dropout unit separating brake, the plectrum can drive the connecting rod action. By adopting the technical scheme, when the current exceeds the preset value, the second lock catch can drive the connecting rod to act, the opening of the circuit breaker unit is realized, and when other circuit problems occur, the circuit breaker unit is opened, and the electric leakage tripping unit is still in a closing state, so that the opening reasons of the electric leakage circuit breaker are distinguished.

Description

Residual current circuit breaker

Technical Field

The utility model relates to a circuit breaker field especially indicates a leakage circuit breaker.

Background

The switch can automatically act when the leakage current in the circuit of the leakage breaker exceeds a preset value, and is used for preventing the human body from getting an electric shock.

The electric leakage circuit breaker contains electric leakage tripping unit and multiunit circuit breaker unit, electric leakage tripping unit sets up with multiunit circuit breaker unit side by side, be equipped with the same actuating mechanism in every circuit breaker unit respectively, also all there is the hasp in each actuating mechanism, link through the connecting rod between the hasp, drive other actuating mechanism actions when an actuating mechanism moves like this, therefore, need a trip subassembly urgently, electric leakage degree tripping unit can drive the hasp linkage in the circuit breaker unit when the electric current exceeds the predetermined value, for circuit breaker unit separating brake, and when the actuating mechanism action separating brake of making circuit breaker unit because of other circuit problems, electric leakage tripping unit still is in the combined floodgate state, for distinguishing electric leakage circuit breaker separating brake reason, so that maintenance personal overhauls the circuit.

Disclosure of Invention

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a residual current circuit breaker, it can be when the electric current surpasss the predetermined value the residual current tripping unit can drive the hasp linkage in the circuit breaker unit for circuit breaker unit separating brake, and making circuit breaker unit separating brake because of other circuit problems, residual current tripping unit still is in the combined floodgate state, is used for distinguishing residual current circuit breaker separating brake reason, so that maintainer overhauls the circuit.

The technical scheme of the utility model: an electric leakage circuit breaker comprises electric leakage tripping units and a plurality of groups of circuit breaker units which are arranged in parallel, wherein each circuit breaker unit is internally provided with an actuating mechanism, each actuating mechanism comprises a first lock catch, synchronous action is realized between the first lock catches through a connecting rod, the electric leakage tripping unit comprises a shell, an electric leakage actuating mechanism and a tripping mechanism are arranged in the shell, the electric leakage actuating mechanism comprises a lever, a trip catch, a second lock catch and a torsional spring, the lever is hinged on the shell through a pin shaft, the second lock catch is rotatably arranged on the pin shaft, the trip catch is hinged at the upper end of the lever, the second lock catch comprises a first extension pin and a second extension pin, the upper end of the first extension pin is provided with a clamping platform, the torsional spring acts on the second extension pin of the second lock catch to enable the clamping platform on the first extension pin to be clamped with the trip catch, locking of the trip catch on the lever is realized, the electric leakage tripping unit is switched on, the tripping mechanism can drive the second lock catch to rotate, the jump buckle is separated from the clamping table, the electric leakage tripping unit is switched off, the second lock catch is provided with a shifting piece, the connecting rod is inserted into the shell, and when the second lock catch rotates to enable the electric leakage tripping unit to be switched off, the shifting piece can drive the connecting rod to act.

By adopting the technical scheme, when the current exceeds the preset value, the tripping mechanism in the leakage tripping unit obtains a signal, the tripping mechanism drives the connecting rod to move, the connecting rod drives the first lock catch in the breaker unit to be linked, the leakage tripping of the leakage breaker is realized, the breaker unit is tripped due to other circuit problems, the connecting rod moves, the leakage tripping unit is in a switching-on state, and the shifting piece has no action and is used for distinguishing the tripping reasons of the leakage breaker so that maintenance personnel can maintain the circuit.

The utility model discloses a further setting again: the tripping mechanism comprises a tripper and a push block, the tripper can drive the push block to move, the push block is located below the second extension pin, and the push block can push the second extension pin to realize rotation of the second lock catch, so that the clamping table is separated from the jump buckle.

By adopting the above further setting, when the leakage circuit breaker is tripped due to leakage, the tripper receives a leakage signal, the tripper drives the push block to move, the push block drives the second locking block to rotate, so that the shifting piece positioned on the second locking block moves, and in the shifting piece moving process, the shifting piece drives the connecting rod to move, so that the circuit breaker unit is switched off.

The utility model discloses a further setting again: the shell is provided with a partition plate, the partition plate is provided with a guide groove, the push block is provided with a guide block, and the guide block can slide in the guide groove.

Adopt above-mentioned further setting again, the installation component that the baffle can be better, the guide block is at the guide way internal slipping for the ejector pad is at the in-process that slides, and the direction of sliding does not squint, and the contact second that the ejector pad can be better extends the foot, makes the ejector pad promote the second hasp.

The utility model discloses a still further set up: the shell is provided with a clamping groove, and the release is provided with pins capable of being inserted into the clamping groove.

By adopting the above further arrangement, the tripper is convenient to mount or dismount.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is an enlarged view of section I of FIG. 2 according to an embodiment of the present invention;

fig. 4 is a second lock structure diagram according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a leakage actuator according to an embodiment of the present invention;

fig. 6 is a structural diagram of a tripping mechanism according to an embodiment of the present invention;

FIG. 7 is a diagram of a baffle plate structure according to an embodiment of the present invention;

fig. 8 is a structural diagram of a housing according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indications (such as up, down, front, and back … …) in the description of the present invention are only used to explain the relative positional relationship, movement, etc. of the components in a specific posture (as shown in fig. 1 and 2: the direction indicated by the arrow X is defined as up), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary that a person skilled in the art can realize the technical solutions, and when the technical solutions are contradictory or cannot be realized, such a combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.

As shown in fig. 1-8, the electrical leakage breaker of the present invention comprises an electrical leakage tripping unit a1 and a plurality of sets of breaker units a2 arranged in parallel, each breaker unit a2 is provided with an actuating mechanism a21, each actuating mechanism a21 comprises a first latch a22, each first latch a22 realizes synchronous action through a connecting rod a23, the electrical leakage tripping unit a1 comprises a housing a11, an electrical leakage actuating mechanism 1 and a tripping mechanism 2 are arranged in the housing a11, the electrical leakage actuating mechanism 1 comprises a lever 11, a trip 12, a second latch 13 and a torsion spring 14, the lever 11 is hinged to the housing a11 through a pin 3, the second latch 13 is rotatably arranged on the pin 3, the trip 12 is hinged to the upper end of the lever 11, the second latch 13 comprises a first extension leg 131 and a second extension leg 132, the upper end of the first extension leg 131 is provided with a block 133, the torsion of the torsion force of the torsion spring 14 acts on the second extension leg 132 of the second latch 13 to urge the block 133 to block the block 133 on the first extension leg 131, realize jumping and detain 12 to the locking of lever 11, electric leakage trip unit A1 closes the floodgate, and tripping device 2 can drive second hasp 13 and rotate, jumps and detain 12 and break away from ka tai 133, and electric leakage trip unit A1 separating brake, be equipped with plectrum 134 on the second hasp 13, connecting rod A23 inserts in casing A11, and when second hasp 13 rotated messenger electric leakage trip unit A1 separating brake, plectrum 134 can drive connecting rod A23 and move.

When the current exceeds a preset value, the tripping mechanism 2 in the leakage tripping unit A1 obtains a signal, the tripping mechanism 2 drives the connecting rod A23 to move, the connecting rod A23 drives the first lock catch A22 in the circuit breaker unit A2 to link, leakage tripping of the leakage circuit breaker is realized, the circuit breaker unit A2 is tripped due to other circuit problems, the connecting rod A23 moves, the leakage tripping unit A1 is in a switching-on state, and the poking piece 134 does not act to distinguish the tripping reason of the leakage circuit breaker so that maintenance personnel can overhaul the circuit.

The trip mechanism 2 includes a trip unit 21 and a push block 22, the trip unit 21 can drive the push block 22 to move, the push block 22 is located below the second extending pin 132, and the push block 22 can drive the second extending pin 132 to rotate the second locking catch 13, so that the locking platform 133 is separated from the jump buckle 12.

When the leakage circuit breaker trips due to leakage, the tripper 21 receives a leakage signal, the tripper 21 drives the push block 22 to move, the push block 22 drives the second lock catch 13 to rotate, the poking piece 134 located on the second lock catch 13 moves, and in the moving process of the poking piece 134, the poking piece 134 drives the connecting rod A23 to move, so that the circuit breaker unit A2 is switched off.

The shell A11 is provided with a partition plate 4, the partition plate 4 is provided with a guide groove 41, the push block 22 is provided with a guide block 23, and the guide block 23 can slide in the guide groove 41.

The partition board 4 can be better used for installing the component, the guide block 23 slides in the guide groove 41, so that the sliding direction of the push block 22 is not deviated during the sliding process, and the push block 22 can better contact with the second extending foot 132, so that the push block 22 pushes the second lock catch 13.

The casing a11 is provided with a slot a111, and the release 21 is provided with a pin 211 that can be inserted into the slot a111, so that the release 21 can be mounted or dismounted conveniently.

Claims (4)

1. An electric leakage circuit breaker comprises an electric leakage tripping unit and a circuit breaker unit, wherein the electric leakage tripping unit and the circuit breaker unit are arranged in parallel, an actuating mechanism is arranged in the circuit breaker unit, the actuating mechanism comprises a first lock catch, the first lock catch realizes synchronous action through a connecting rod, the electric leakage tripping unit comprises a shell, an electric leakage actuating mechanism and a tripping mechanism are arranged in the shell, the electric leakage actuating mechanism comprises a lever, a tripping buckle, a second lock catch and a torsion spring, the lever is hinged on the shell through a pin shaft, the second lock catch is rotatably arranged on the pin shaft, the tripping buckle is hinged at the upper end of the lever, the second lock catch comprises a first extending pin and a second extending pin, the upper end of the first extending pin is provided with a clamping table, the torsion force of the torsion spring acts on the second extending pin of the second lock catch to enable the clamping table on the first extending pin to be clamped with the tripping buckle, the locking of the tripping buckle on the lever is realized, and the electric leakage tripping unit is switched on, the tripping mechanism can drive the second lock catch to rotate, the jump buckle is separated from the clamping table, and the electric leakage tripping unit is switched off.

2. The residual current circuit breaker as claimed in claim 1, wherein the trip mechanism comprises a release and a push block, the release drives the push block to move, the push block is located below the second extension pin, and the push block can push the second extension pin to realize rotation of the second latch, so that the blocking platform is separated from the jump buckle.

3. A residual current circuit breaker according to claim 2, characterized in that the housing is provided with a partition plate, the partition plate is provided with a guide groove, the push block is provided with a guide block, and the guide block can slide in the guide groove.

4. A residual current circuit breaker as claimed in claim 3, characterized in that said casing is provided with a blocking slot, and said trip unit is provided with a pin insertable into said blocking slot.

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