CN209880522U - Plastic shell type circuit breaker - Google Patents

Abstract

The utility model discloses a mould shell type circuit breaker, including shell, explosion chamber, solenoid magnet, hasp contact, inner tube, end plate, card line arch and recess, the inside edge rotation of shell installs the hasp contact, and hasp contact linkage tip installs the explosion chamber, solenoid magnet is installed to the inside hasp contact side that is located of shell, solenoid magnet inner core adopts the inner tube, and inner tube both ends symmetry is fixed with the end plate, inner tube one side end plate fixed surface has the card line protruding, and inner tube opposite side end plate surface sets up flutedly, and solenoid magnet that this mould shell type circuit breaker used is stable to the installation of iron core, reduces a plurality of auxiliary component, and reduce cost, it is convenient with support cooperation installation, and the gross diameter copper pipe passes the wire casing moreover, and the winding is stable, and magnetism is stable, and the practicality is higher.

Description

Plastic shell type circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a mould shell type circuit breaker.

Background

The molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting. Plastic housing refers to the use of plastic insulators as the outer housing of the device to isolate the conductors from each other and from the grounded metal parts.

The existing plastic shell type circuit breakers are various, but the principles are the same, the connection locking is released through a coil magnet inside the circuit breaker, and linkage power failure is carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould shell type circuit breaker to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mould shell type circuit breaker, includes shell, explosion chamber, solenoid magnet, hasp contact, inner tube, end plate, card line arch and recess, the inside marginal rotation of shell installs the hasp contact, and hasp contact linkage tip installs the explosion chamber, the inside hasp contact side that is located of shell installs solenoid magnet, solenoid magnet inner core adopts the inner tube, and inner tube both ends symmetry is fixed with the end plate, inner tube one side end plate fixed surface has the card line arch, and inner tube opposite side end plate surface sets up flutedly.

Preferably, the arc extinguishing chamber is integrally formed by twelve arc extinguishing plates.

Preferably, the coil used by the solenoid magnet is wound by using a copper pipe with a large diameter.

Preferably, the outer shell, the inner cylinder and the end plate are made of hard insulating plastics.

Preferably, the inner cylinder, the end plate and the clamping pattern protrusions are integrally formed by injection molding.

Compared with the prior art, the beneficial effects of the utility model are that: the device makes solenoid magnet magnetism work through the line fault protection linkage of internal component, the rotation of control hasp contact, it jumps to drive the handle, solenoid magnet adopts the inner tube as the inner core basis, outside winding copper line, the iron core passes from the inner tube center, the protruding joint of card line is passed through at the both ends of iron core, then outside support card carries out fixed mounting at the iron core tip to solenoid magnet, the solenoid magnet that this plastic-shelled circuit breaker used is stable to the installation of iron core, reduce a plurality of auxiliary component, reduce cost, it is convenient with support cooperation installation, and the major diameter copper pipe passes the wire casing, the winding is stable, magnetism is stable, and the practicality is higher.

Drawings

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

FIG. 2 is a schematic view of the raised structure of the snap pattern of the present invention;

fig. 3 is a schematic view of the groove structure of the present invention.

In the figure: 1. a housing; 2. an arc extinguishing chamber; 3. a solenoid magnet; 4. a latch contact; 5. an inner barrel; 6. an end plate; 7. the clamping lines are raised; 8. and (4) a groove.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a mould shell type circuit breaker, which comprises an outer shell 1, explosion chamber 2, solenoid magnet 3, hasp contact 4, inner tube 5, end plate 6, protruding 7 of card line and recess 8, 1 inside edge rotation of shell installs hasp contact 4, and 4 linkage tip of hasp contact install explosion chamber 2, 1 inside 4 sides that are located the hasp contact of shell are installed solenoid magnet 3, 3 inner cores of solenoid magnet adopt inner tube 5, and 5 both ends symmetries of inner tube are fixed with end plate 6, 6 fixed surface of 5 one side end plates of inner tube have protruding 7 of card line, and 5 opposite side end plates 6 surfaces of inner tube are seted up flutedly 8.

The device makes 3 magnetism work of solenoid magnet through the circuit fault protection linkage of internal element, and the rotation of control hasp contact 4 drives the handle and jumps, and solenoid magnet 3 adopts inner tube 5 as the inner core basis, and the outside winding copper line, the iron core pass from inner tube 5 center, and the protruding 7 joints of card line are passed through at the both ends of iron core, then the outside support card carries out fixed mounting at the iron core tip to solenoid magnet 3.

The arc extinguish chamber 2 is integrally formed by twelve arc extinguish plates, so that the spatial position of the electric arc is effectively limited, and the electric arc extinguishing is accelerated.

The coil used by the solenoid magnet 3 is formed by winding a copper pipe with a large diameter, so that the copper pipe is conveniently wound, and the production efficiency is improved.

The shell 1, the inner barrel 5 and the end plate 6 are made of hard insulating plastics, so that the cost is low and the strength is high.

The inner cylinder 5, the end plate 6 and the clamping pattern protrusions 7 are integrally formed by injection molding, so that the production convenience is increased, and the production steps and the production period are shortened.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a mould shell type circuit breaker, includes shell (1), explosion chamber (2), solenoid magnet (3), hasp contact (4), inner tube (5), end plate (6), protruding (7) of card line and recess (8), its characterized in that: shell (1) inside edge rotates and installs hasp contact (4), and hasp contact (4) linkage tip installs explosion chamber (2), shell (1) inside is located hasp contact (4) side and installs solenoid magnet (3), solenoid magnet (3) inner core adopts inner tube (5), and inner tube (5) both ends symmetry is fixed with end plate (6), inner tube (5) one side end plate (6) surface fixation has protruding (7) of card line, and inner tube (5) opposite side end plate (6) surface sets up fluted (8).

2. A molded case circuit breaker as defined in claim 1, wherein: the arc extinguish chamber (2) is integrally manufactured by adopting twelve arc extinguish plates.

3. A molded case circuit breaker as defined in claim 1, wherein: the coil used by the solenoid magnet (3) is formed by winding a copper pipe with a large diameter.

4. A molded case circuit breaker as defined in claim 1, wherein: the shell (1), the inner cylinder (5) and the end plate (6) are made of hard insulating plastics.

5. A molded case circuit breaker as defined in claim 1, wherein: the inner cylinder (5), the end plate (6) and the clamping pattern protrusions (7) are integrally formed by injection molding.