CN212750782U

CN212750782U - Magnetic protection module of switch device

Info

Publication number: CN212750782U
Application number: CN202021650118.6U
Authority: CN
Inventors: 刘时胜; 王斌; 李阳智; 付志军
Original assignee: Jiangxi Hangtong Electric Technology Co ltd; Shanghai Retel Electric Technology Co ltd
Current assignee: Jiangxi Hangtong Electric Technology Co ltd; Shanghai Retel Electric Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-03-19
Anticipated expiration: 2030-08-10

Abstract

The utility model provides a switching device's magnetism protection module relates to the switch technology field, including yoke and armature, the utility model discloses in, through installing the contact, the contact sets up perpendicularly in the both sides of armature, during the use, has formed two working air gaps between two contacts and the yoke to can prevent that the phenomenon of magnetic saturation from appearing in the coil, when faults such as overload or short circuit appear in the circuit, the current strength that passes through in the coil is directly proportional with the magnetic force that the coil produced, the magnetic force that the coil produced is stronger, the action of armature and contact is faster, the branch that has improved armature divides the speed and has better protection effect to the circuit.

Description

Magnetic protection module of switch device

Technical Field

The utility model relates to the field of switch technology, especially, relate to a switching device's magnetism protection module.

Background

The circuit breaker is one of the switches, in modern life, the circuit breaker is a circuit device which is light in weight, in the circuit breaker, the magnetic protection module is generally installed, when faults such as short circuit, overload and the like occur in the circuit, the magnetic protection module in the circuit breaker can automatically break the circuit to play a role in protecting electric appliances and circuits, various circuit breakers with the magnetic protection module are available on the market at present, wherein, an electromagnetic tripping device is common, when short circuit occurs, abnormal current fluctuation occurs on an electromagnet to further cause magnetic force change, the magnetic force generated by the electromagnet is greater than the counter-acting force of a spring, so that a tripping mechanism releases a main contact to break the circuit to play a role in protecting the circuits;

however, in the conventional magnetic protection module for the circuit breaker, usually, only a gap is arranged between the armature and the iron core, so that only a single working air gap exists, and further, when the magnetic protection module is used, the magnetic saturation phenomenon easily occurs to the magnetic protection module arranged with the single air gap, so that the performance of the magnetic protection module is greatly influenced, and further optimization is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a magnetic protection module of a switching device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a switching device's magnetism protection module, includes yoke and armature, the inside of yoke is provided with the through-hole, the inside embedding of through-hole is provided with the iron core, the nested coil that is provided with in outside of iron core, the top of yoke is provided with armature, the rear side of armature is provided with the mounting hole, the left and right sides fixedly connected with contact of armature.

Preferably, both of the contacts are arranged perpendicular to the armature.

Preferably, the width of the upper surface of the yoke is larger than the interval between the two contacts.

Preferably, a circular through hole is formed in the contact.

Preferably, the armature and the magnetic yoke are a group of movable connecting components.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through installing the contact, the contact sets up in the both sides of armature perpendicularly, during the use, two working air gaps have been formed between two contacts and the yoke to can prevent that the phenomenon of magnetic saturation from appearing in the coil, when faults such as overload or short circuit appear in the circuit, the current strength that passes through in the coil is directly proportional with the magnetic force that the coil produced, the magnetic force that the coil produced is stronger, the action of armature and contact is faster, the branch that has improved armature divides the speed and has better protection effect to the circuit.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a local structure of the middle coil of the present invention;

fig. 3 is a schematic view of a partial structure of the armature of the present invention;

fig. 4 is a schematic view of a partial structure of a middle contact of the present invention;

fig. 5 is a schematic view of the local structure of the middle magnetic yoke of the present invention.

In fig. 1 to 5, the correspondence between the part names or lines and the reference numbers is:

yoke 1, through hole 101, iron core 2, coil 3, armature 4, mounting hole 401, contact 402.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1 to 5; the utility model provides a switching device's magnetism protection module, including yoke 1 and armature 4, the inside of yoke 1 is provided with through-hole 101, and the inside embedding of through-hole 101 is provided with iron core 2, and the outside nestification of iron core 2 is provided with coil 3, and the top of yoke 1 is provided with armature 4, and armature 4's rear side is provided with mounting hole 401, armature 4's the left and right sides fixedly connected with contact 402.

Furthermore, the two contacts 402 are both perpendicular to the armature 4, two working air gaps are formed between the right side surfaces of the two contacts 402 and the left side surface of the magnetic yoke 1 respectively, the phenomenon of magnetic saturation of the coil 3 can be prevented through the arrangement of the contacts 402, and meanwhile, the arrangement of the electric shock 402 can penetrate through more magnetic induction lines generated around the coil 3, so that when the current in the coil 3 is increased sharply, the magnetic induction lines generated by the coil 3 are more dense, the magnetic force generated by the coil 3 is particularly stronger, and more magnetic induction lines penetrate through the armature 4 and the contacts 402, so that the breaking speed of the armature 4 is higher, the circuit is more timely, and the circuit protection effect is further improved.

Further, the width of the upper surface of the magnetic yoke 1 is larger than the distance between the two contacts 402, and when the armature 4 abuts against the top of the iron core 2, the contacts 402 can abut against the surface of the magnetic yoke 1 close to the iron core 2, so that the action of breaking the circuit can be performed more quickly.

Further, a circular through hole is formed in the contact 402, and the ejector rod is convenient to mount subsequently through the circular through hole.

Furthermore, the armature 4 and the magnetic yoke 1 form a group of movable connection components, when the circuit normally operates, the armature 4 and the magnetic yoke 1 are in a separated state, when faults such as short circuit or overload occur in the circuit, the current passing through the coil 3 is increased, the coil 3 generates magnetic force to attract the armature 4, the armature 4 moves downwards to abut against the iron core 2, and the operation of breaking the current is completed.

The working principle is as follows: when in use, the whole device is assembled in the switch in advance, the armature iron 4 is arranged at a required position in the switch through the mounting hole 401, the ejector rod is clamped in a through hole in the contact 402, and the whole device is connected with a conductive loop in the switch in series, then, when the current in the switch normally operates, the coil 3 can not generate enough magnetic force for pulling the armature 4 to move, the armature 4 and the magnetic yoke 1 are in a separated state, the current of the whole breaker normally operates, then, when a fault such as short circuit or overload occurs in the circuit, the current passing through the coil 3 increases, the coil 3 generates magnetic force to attract the armature 4 and the contact 402, so that the armature 4 moves downwards to abut against the iron core 2, the contact 402 abuts against the magnetic yoke 1, and finally, the ejector rod is hit through the action of downward movement of the contact 402, the work of the whole disjunction circuit is completed, and the effect of protecting the circuit is achieved.

The embodiments of the present application have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a switching device's magnetism protection module, includes yoke (1) and armature (4), its characterized in that, the inside of yoke (1) is provided with through-hole (101), the inside embedding of through-hole (101) is provided with iron core (2), the outside nestification of iron core (2) is provided with coil (3), the top of yoke (1) is provided with armature (4), the rear side of armature (4) is provided with mounting hole (401), the left and right sides fixedly connected with contact (402) of armature (4).

2. A magnetic protection module for a switching device according to claim 1, characterized in that both of said contacts (402) are arranged perpendicularly to the armature (4).

3. Magnetic protection module of a switching device according to claim 1, characterized in that the width of the upper surface of the yoke (1) is greater than the spacing between two of the contacts (402).

4. Magnetic protection module of a switching device, according to claim 1, characterized in that said contacts (402) are internally perforated with circular through holes.

5. The magnetic protection module of a switching device according to claim 1, characterized in that the armature (4) and the yoke (1) are a set of movable connection assemblies.