CN209859888U - Novel moulded case circuit breaker - Google Patents

Abstract

The utility model discloses a novel moulded case circuit breaker relates to circuit breaker technical field, including the circuit breaker main part, circuit breaker main part front surface is provided with the shell, the terminal is located flip's inboard, first arc wall and second arc wall are located shell and flip's surface respectively, the both sides of circuit breaker main part all are provided with the louvre, the top of shell is provided with the venthole, the bottom of shell is provided with the inlet port. The utility model discloses an under the cooperation of louvre, inlet port and venthole, with the inside heat discharge of circuit breaker main part, radiating rate has been accelerated, avoid thermal the piling up damage that leads to the part, the flip butt joint line position through setting up is protected, avoid the wiring position directly to expose in the external environment, the security performance has been improved, through under the cooperation at first arc wall, second arc wall and elastic rubber, press from both sides the electric wire when flip is closed tightly, the stability of connection has been improved.

Description

Novel moulded case circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a novel moulded case circuit breaker.

Background

A molded case circuit breaker can automatically cut off a current after the current exceeds a trip setting, a molded case refers to a case using a plastic insulator as a device for isolating between conductors and a ground metal part, the molded case circuit breaker generally includes a thermo-magnetic trip unit, and a large-sized molded case circuit breaker is equipped with a solid trip sensor.

The most protection device that does not have in current moulded case circuit breaker's wiring position department directly exposes in the external environment, easily leads to the unstability of wiring, and moulded case circuit breaker can produce the heat at the during operation, and the heat is difficult for giving off to influence internals's life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a novel moulded case circuit breaker, which aims to solve the problems that the wiring position of the existing moulded case circuit breaker is mostly not provided with a protection device, and the wiring position is directly exposed in the external environment, so that the wiring is easy to be unstable, the moulded case circuit breaker can generate heat during the working process, and the heat is not easy to be emitted, thereby influencing the service life of internal parts.

In order to achieve the above object, the utility model provides a following technical scheme: a novel molded case circuit breaker comprises a circuit breaker main body, wherein a shell is arranged on the front surface of the circuit breaker main body, flip covers are arranged at two ends of the front surface of the shell, binding posts are arranged at two ends of the front surface of the circuit breaker main body, the binding posts are positioned on the inner side of the flip covers, limiting holes are arranged at the top end and the bottom end of the shell, each limiting hole comprises a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped grooves and the second arc-shaped grooves are respectively positioned on the surfaces of the shell and the flip covers, a first magnet is arranged at the position, close to the first arc-shaped grooves, of the shell, a second magnet is arranged at one side, close to the second arc-shaped grooves, of the flip covers, one ends, far away from the second magnet, of the flip covers are connected with the shell through a rotating shaft, a reset, the both sides of circuit breaker main part all are provided with the louvre, the top of shell is provided with the venthole, the bottom of shell is provided with the inlet port.

Preferably, the circuit breaker main body is fixedly connected with the housing through bolts, and a gap is arranged between the circuit breaker main body and the housing.

Preferably, the outside of louvre is provided with arc shell, the inside of inlet port and venthole all is provided with the dust screen.

Preferably, the fixing base is installed at the top of circuit breaker main part, and the inside of fixing base is provided with the mounting hole, the front surface of circuit breaker main part is provided with the handle that extends to the shell outside.

Preferably, the inside of first arc wall and second arc wall all is provided with elastic rubber, the top and the bottom of shell all are provided with the recess.

Preferably, the first magnet and the second magnet are the same size, and the first magnet and the second magnet are opposite in polarity.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an at the louvre, under the cooperation of inlet port and venthole, discharge the inside heat of circuit breaker main part, the radiating rate has been accelerated, avoid thermal the damage that leads to the part of piling up, service life is prolonged, flip butt joint line position through setting up is protected, avoid the wiring position directly to expose in the external environment, the security performance has been improved, through under the cooperation at first magnet and second magnet, flip's closure of being convenient for, through at first arc wall, under the cooperation of second arc wall and elastic rubber, press from both sides the electric wire when flip is closed tightly, the stability of connection has been improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the inner side structure of the flip cover of the present invention;

fig. 3 is a schematic structural diagram of the flip cover of the present invention;

fig. 4 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. a circuit breaker main body; 2. a housing; 3. a handle; 4. a fixed seat; 5. mounting holes; 6. a cover is turned; 7. a groove; 8. an air outlet; 9. a limiting hole; 10. a binding post; 11. a first arc-shaped slot; 12. a first magnet; 13. a rotating shaft; 14. a return spring; 15. a second magnet; 16. a second arc-shaped slot; 17. heat dissipation holes; 18. and (4) air inlet holes.

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. 1-4, a novel molded case circuit breaker includes a circuit breaker main body 1, a case 2 is disposed on a front surface of the circuit breaker main body 1, flip covers 6 are disposed on both ends of the front surface of the case 2, terminals 10 are disposed on both ends of the front surface of the circuit breaker main body 1, the terminals 10 are located on inner sides of the flip covers 6, limiting holes 9 are disposed on top and bottom ends of the case 2, the limiting holes 9 include a first arc-shaped groove 11 and a second arc-shaped groove 16, the first arc-shaped groove 11 and the second arc-shaped groove 16 are respectively located on surfaces of the case 2 and the flip covers 6, a first magnet 12 is disposed on a position of the case 2 close to the first arc-shaped groove 11, a second magnet 15 is disposed on a side of the flip cover 6 close to the second arc-shaped groove 16, one end of the flip cover 6 far away from the second magnet 15 is connected with the case 2 through, the one end that flip 6 was kept away from to reset spring 14 is connected with shell 2, and the both sides of circuit breaker main part 1 all are provided with louvre 17, and the top of shell 2 is provided with venthole 8, and the bottom of shell 2 is provided with inlet port 18.

Through under the cooperation at louvre 17, inlet port 18 and venthole 8, discharge the inside heat of circuit breaker main part 1 for rate of heat dissipation, avoid thermal the piling up damage that leads to the part, improved life, 6 butt joint line positions protect through the flip that sets up, avoid the wiring position directly to expose in the external environment, improved the security performance, through under the cooperation at first magnet 12 and second magnet 15, be convenient for flip 6's closure.

Please refer to fig. 4, the circuit breaker main body 1 is fixedly connected to the housing 2 by bolts, a gap is provided between the circuit breaker main body 1 and the housing 2, the outer side of the heat dissipation hole 17 is provided with an arc-shaped housing, and the inside of the air inlet hole 18 and the air outlet hole 8 are both provided with dust screens.

The clearance through setting up is favorable to the inside circulation of air of shell, improves rate of heat dissipation, avoids the life that the entering of dust influences the part through the dust screen that sets up, avoids getting into circuit breaker main part 1 inside of water droplet through the arc shell that sets up.

Please refer to fig. 1, a fixing base 4 is installed on the top of the circuit breaker main body 1, a mounting hole 5 is formed inside the fixing base 4, and a handle 3 extending to the outer side of the housing 2 is arranged on the front surface of the circuit breaker main body 1.

The fixing seat 4 and the mounting hole 5 are convenient for the fixed mounting of the breaker main body 1.

Please refer to fig. 2 and 3, the first arc-shaped slot 11 and the second arc-shaped slot 16 are both provided with elastic rubber inside, the top and the bottom of the housing 2 are both provided with grooves 7, the first magnet 12 and the second magnet 15 have the same size, and the first magnet 12 and the second magnet 15 have opposite polarities.

Through under the cooperation of first arc wall 11, second arc wall 16 and elastic rubber, press from both sides the electric wire when flip 6 is closed tightly, improved the stability of connecting, be convenient for flip 6's opening through the recess 7 that sets up.

The working principle is as follows: the flip cover 6 is opened through the groove 7, wiring is performed through the wiring terminal 10, the flip cover 6 is closed, the first magnet 12 and the second magnet 15 attract each other, so that the flip cover 6 and the housing 2 are closed, the wiring position is protected, the wiring position is prevented from being directly exposed in an external environment, the safety performance is improved, and under the matching of the first arc-shaped groove 11, the second arc-shaped groove 16 and the elastic rubber, the electric wire is clamped when the flip cover 6 is closed, the stability of connection is improved, the heat generated when the breaker main body 1 works is discharged from the heat dissipation hole 17, because be provided with the clearance between circuit breaker main part 1 and the shell 2, form the circulation of air through inlet port 18 and venthole 8, improve rate of heat dissipation, avoid thermal the damage that leads to the part of piling up, improved life, the dust screen avoids the entering of dust to influence the life of part, and the arc shell is avoided the water droplet to get into circuit breaker main part 1 inside from louvre 17.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A novel molded case circuit breaker comprises a breaker main body (1), and is characterized in that: the front surface of the circuit breaker main body (1) is provided with a shell (2), two ends of the front surface of the shell (2) are respectively provided with a flip cover (6), two ends of the front surface of the circuit breaker main body (1) are respectively provided with a binding post (10), the binding post (10) is positioned at the inner side of the flip cover (6), the top end and the bottom end of the shell (2) are respectively provided with a limiting hole (9), the limiting hole (9) comprises a first arc-shaped groove (11) and a second arc-shaped groove (16), the first arc-shaped groove (11) and the second arc-shaped groove (16) are respectively positioned on the surfaces of the shell (2) and the flip cover (6), a first magnet (12) is arranged at the position of the shell (2) close to the first arc-shaped groove (11), a second magnet (15) is arranged at one side of the flip cover (6) close to the second arc-shaped groove (16), one end of the flip cover (6) far away from the second magnet (15, reset spring (14) are installed to flip (6) inboard near pivot (13) one end, the one end that flip (6) were kept away from in reset spring (14) is connected with shell (2), the both sides of circuit breaker main part (1) all are provided with louvre (17), the top of shell (2) is provided with venthole (8), the bottom of shell (2) is provided with inlet port (18).

2. The novel molded case circuit breaker according to claim 1, wherein: the circuit breaker is characterized in that the circuit breaker main body (1) is fixedly connected with the shell (2) through bolts, and a gap is formed between the circuit breaker main body (1) and the shell (2).

3. The novel molded case circuit breaker according to claim 1, wherein: the outside of louvre (17) is provided with the arc shell, the inside of inlet port (18) and venthole (8) all is provided with the dust screen.

4. The novel molded case circuit breaker according to claim 1, wherein: fixing base (4) are installed at the top of circuit breaker main part (1), and the inside of fixing base (4) is provided with mounting hole (5), the front surface of circuit breaker main part (1) is provided with handle (3) that extend to shell (2) outside.

5. The novel molded case circuit breaker according to claim 1, wherein: the inside of first arc wall (11) and second arc wall (16) all is provided with elastic rubber, the top and the bottom of shell (2) all are provided with recess (7).

6. The novel molded case circuit breaker according to claim 1, wherein: the first magnet (12) and the second magnet (15) are the same in size, and the first magnet (12) and the second magnet (15) are opposite in polarity.