CN212967577U - Electromagnetic tripping mechanism - Google Patents

Abstract

The utility model relates to an electromagnetic tripping mechanism, including the coil of winding on coil skeleton, move the iron core, quiet iron core, set up iron core spring and armature between moving iron core and quiet iron core, move iron core cavity, the cross-section of moving the iron core is the ring form attitude, it sets up half groove along the inner ring terminal surface to move an end of iron core, half groove has the step face, pass through rivet riveting connection with armature in another terminal surface of moving the iron core, the head of rivet is embedded in half groove, form with the step face and be connected the backstop, armature includes connecting portion and striking portion, connecting portion and striking portion form "L" shape, connecting portion and the terminal surface fixed connection who moves the iron core, the striking position is located coil skeleton's top and with coil skeleton parallel arrangement, striking portion is used for striking operating device. The structure can change the transverse arrangement form of the spring operating mechanism and the electromagnetic tripping mechanism into the vertical arrangement form, thereby being convenient for realizing the miniaturization of the structure.

Description

Electromagnetic tripping mechanism

Technical Field

The utility model relates to an electromagnetism tripping device constructs.

Background

The traditional electromagnetic tripping mechanism is provided with a push rod, when a coil is electrified, the push rod can trigger a spring operating mechanism positioned on one side of the push rod, so that the spring operating mechanism acts, and a moving contact and a static contact are separated. The defects of the electromagnetic tripping mechanism are as follows: because the inner space is limited, the electromagnetic tripping mechanism and the spring operating mechanism are arranged in parallel, the size of the shell needs to be increased, and the circuit breaker cannot be designed in a miniaturized manner.

Disclosure of Invention

In view of this, an object of the present invention is to provide an electromagnetic trip mechanism, in which a component for pushing a spring operating mechanism to move is disposed above the electromagnetic trip mechanism, so as to facilitate the product to realize a miniaturized design.

In order to achieve the above purpose, the electromagnetic tripping mechanism of the utility model comprises a coil wound on a coil frame, a movable iron core, a static iron core, an iron core spring arranged between the movable iron core and the static iron core, and an armature, the movable iron core is hollow, the section of the movable iron core is in a circular ring shape, a half groove is arranged at one tail end of the movable iron core along the end surface of the inner ring, the half groove is provided with a step surface, the armature is riveted and connected with the other end surface of the movable iron core through a rivet, the head of the rivet is embedded in the half groove, a connecting stop is formed on the surface of the step, the armature comprises a connecting part and an impact part, the connecting part and the impact part form an L shape, the connecting portion with move the terminal surface fixed connection of iron core, striking position be located coil skeleton's top and with coil skeleton parallel arrangement, striking portion be used for striking operating device. Compared with the prior art, the invention has the beneficial technical effects that: through the design of above structure, will promote spring operating device motion armature and set to "L" shape, connecting portion with move the iron core fixed, striking portion sets up in electromagnetic tripping device's top, during the application, only need aim at spring operating device's the corresponding position with striking portion, even realize the protection tripping action, this kind of structure is because of space restriction changes electromagnetic tripping device's position in a flexible way, is convenient for realize the miniaturization of structure.

Particularly, quiet iron core card go into the one end of coil skeleton, quiet iron core with coil skeleton form interference fit, the movable iron core penetrate the other end of coil skeleton, the one end of iron core spring is fixed to be set up in the inner wall bottom of quiet iron core. Through the arrangement of the structure, when the movable iron core and the fixed iron core are attracted, the head of the rivet extrudes the iron core spring, and the impact part of the movable iron core and the armature overcomes the compression force of the spring to do work; when the movable and static iron cores are released, the movable iron core returns to the initial position under the action of the restoring force of the iron core spring.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. an armature; 2. a coil; 3. a coil bobbin; 4. an iron core spring; 5. a stationary iron core; 6. a movable iron core; 61. a step surface; 7. and (4) riveting.

Detailed Description

As shown in fig. 1, an electromagnetic trip mechanism includes a coil 2 wound on a coil frame 3, a movable iron core 6, a stationary iron core 5, an iron core spring 4 and an armature 1 arranged between the movable iron core 6 and the stationary iron core 5, the movable iron core 6 is hollow, the cross section of the movable iron core 6 is in a ring-shaped state, a half groove is formed at one end of the movable iron core 6 along an inner ring end face, the half groove has a step face 61, the armature 1 is connected to the other end face of the movable iron core 6 through a rivet 7 in a riveting manner, the head of the rivet 7 is embedded in the half groove and forms a connection stop with the step face 61, the armature 1 includes a connecting portion and an impact portion, the connecting portion and the impact portion form an L shape, the connecting portion is fixedly connected with the end face of the movable iron core 6, the impact portion is located above the coil frame 3 and is arranged in parallel with the.

Quiet iron core 5 card is gone into coil skeleton 3's one end, and quiet iron core 5 forms interference fit with coil skeleton 3, moves iron core 6 and penetrates coil skeleton 3's the other end, and the one end of iron core spring 4 is fixed to be set up in the inner wall bottom of quiet iron core 5.

Claims (2)

1. The utility model provides an electromagnetic tripping device, includes the coil of winding on coil skeleton, moves iron core, quiet iron core, sets up iron core spring and armature between moving iron core and quiet iron core, its characterized in that: the movable iron core is hollow, the cross section of the movable iron core is in a circular ring shape, a half groove is formed in one end of the movable iron core along the end face of the inner ring, the half groove is provided with a step face, an armature is connected to the other end face of the movable iron core through rivet riveting, the head of the rivet is embedded into the half groove and forms a connection stop with the step face, the armature comprises a connecting portion and an impact portion, the connecting portion and the impact portion form an L shape, the connecting portion is fixedly connected with the end face of the movable iron core, the impact portion is located above the coil framework and is arranged in parallel with the coil framework, and the impact portion is used for impacting an operating mechanism.

2. The electromagnetic trip mechanism of claim 1, wherein: quiet iron core card go into coil skeleton's one end, quiet iron core with coil skeleton form interference fit, the movable iron core penetrate coil skeleton's the other end, the one end of iron core spring is fixed to be set up in the inner wall bottom of quiet iron core.

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