CN210984648U

CN210984648U - Small-sized circuit breaker

Info

Publication number: CN210984648U
Application number: CN201922023374.6U
Authority: CN
Inventors: 戴少蒲; 胡旭阳
Original assignee: Hokuriku Electric Industry Co Ltd
Current assignee: Hokuriku Electric Industry Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-10
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a miniature circuit breaker, which comprises a circuit breaker main body, wherein a notch is arranged at the bottom of one side of the circuit breaker main body, an arch block is symmetrically arranged in the vertical direction of the two sides of the notch, a switch is arranged in the middle of the arch block, the bottom end of the arch block is rotationally connected with an arc cover plate corresponding to the switch, a hidden handle is arranged at the outer side of one end of the arc cover plate, a fault indicator lamp is fixed at the top of one side of the circuit breaker main body, and an operation indicator lamp is correspondingly arranged under the fault indicator lamp, the miniature circuit breaker of the utility model reserves heat dissipation holes at the two sides of the circuit breaker main body through a first heat dissipation hole and a second heat dissipation hole, so that a large amount of heat generated in the process that electric arc enters an arc extinguishing device can be quickly dissipated, and the first heat dissipation hole and the second heat dissipation hole utilize, the potential safety hazard can not be produced, and breaker main part outside switch carries out safety protection by the arc apron, prevents that the mistake from bumping.

Description

Small-sized circuit breaker

Technical Field

The utility model relates to a circuit breaker, in particular to miniature circuit breaker belongs to power equipment technical field.

Background

The miniature circuit breaker is very extensive in the use of daily life, can effectually play the effect to the protective action of consumer in the life, avoids when power line goes wrong, because the overvoltage overcurrent's reason leads to the problem that the consumer damaged. The circuit breaker has the characteristics of advanced structure, reliable performance, strong breaking capacity, attractive and small appearance and the like, and can be used for the infrequent on-off operation and conversion of a circuit.

The process that current circuit breaker electric arc got into arc control device arc extinguishing in the disconnection can produce a large amount of heats, causes the inside temperature of miniature circuit breaker to rise, if the heat can't distribute away fast and damage inside other devices easily to the circuit breaker is arranged comparatively inseparably in the position of regulator cubicle, and when the circuit breaker broke down, can't fine be perceived which circuit breaker has taken place the trouble, influences the maintenance progress. We have therefore made an improvement to this, and propose a miniature circuit breaker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniature circuit breaker, the process that traditional circuit breaker put forward among the above-mentioned background art electric arc got into arc control device arc extinguishing can produce a large amount of heats when the disconnection, cause the inside temperature of miniature circuit breaker to rise, if the heat can't distribute away fast and damage inside other devices easily, and the position of circuit breaker in the regulator cubicle is arranged and is more inseparable, when the circuit breaker breaks down, can't fine perception is which circuit breaker has taken place the trouble, the problem of the maintenance progress is influenced.

In order to achieve the above object, the utility model provides a following technical scheme: a small-sized breaker comprises a breaker main body, a notch is arranged at the bottom of one side of the breaker main body, arch blocks are symmetrically arranged in the vertical direction at the two sides of the notch, a switch is arranged in the middle of each arch block, the bottom end of the arch block is rotationally connected with an arc cover plate corresponding to the switch, the outer side of one end of the arc cover plate is provided with a hidden handle, a fault indicating lamp is fixed at the top of one side of the breaker main body, an operation indicating lamp is correspondingly arranged under the fault indicating lamp, first heat dissipation holes are symmetrically arranged in the vertical direction at one side of the breaker main body, the ports of the first heat dissipation holes are connected with a first grid heat dissipation plate in a clamping manner, a nameplate is fixed between the first grid heat dissipation plates, second heat dissipation holes are symmetrically formed in the vertical direction of the other side of the breaker main body, the inner wall of the second radiating hole is connected with a second grid radiating plate in a clamping mode, and fixing lugs are symmetrically arranged on the other side of the circuit breaker main body.

As an optimized technical scheme of the utility model, link to each other through the damping pivot between arc apron and the arch-shaped piece one end inner wall.

As an optimal technical scheme of the utility model, electric connection between fault indicator lamp and operation pilot lamp and the circuit breaker main part.

As an optimal technical scheme of the utility model, the inboard laminating of first net heating panel and second net heating panel has the insulating cement.

As an optimal technical scheme of the utility model, the circuit breaker main part outside is provided with fire-retardant casing.

As an optimized technical scheme of the utility model, be the integrated into one piece structure between arch-shaped piece and the fire-retardant casing.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a miniature circuit breaker, it can give off fast to have the inside high temperature of ensureing the circuit breaker, and can look for the circuit breaker that breaks down directly perceivedly, avoids the mistake to bump the advantage of switch, in concrete use, compares with traditional circuit breaker, the utility model discloses a first louvre and second louvre are all reserved the thermovent in the both sides of circuit breaker main part for the produced a large amount of heats of process that electric arc got into the arc extinguishing device arc extinguishing can be given off fast, and first louvre and second louvre port utilize first net heating panel and second net heating panel to protect the check and keep off, can not produce the potential safety hazard, and circuit breaker main part outside switch utilizes arc apron to carry out safety protection, can not miss bump the switch, excellent in use effect.

Drawings

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

fig. 2 is a schematic side view of the present invention;

in the figure: 1. a fault indicator light; 2. an operation indicator light; 3. a notch; 4. a switch; 5. an arc-shaped cover plate; 6. a hidden handle; 7. a circuit breaker main body; 8. a first heat dissipation hole; 9. a first mesh heat dissipation plate; 10. a nameplate; 11. a flame retardant housing; 12. fixing the ear; 13. a second heat dissipation hole; 14. a second mesh heat dissipation plate; 15. an arch block; 16. damping pivot.

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. 1-2, the present invention provides a miniature circuit breaker, comprising a circuit breaker main body 7, wherein a notch 3 is formed at the bottom of one side of the circuit breaker main body 7, arch blocks 15 are symmetrically arranged in the vertical direction at both sides of the notch 3, a switch 4 is installed in the middle of each arch block 15, an arc cover plate 5 corresponding to the switch 4 is rotatably connected to the bottom end of each arch block 15, a blind handle 6 is formed at the outer side of one end of each arc cover plate 5, a fault indicator lamp 1 is fixed at the top of one side of the circuit breaker main body 7, an operation indicator lamp 2 is correspondingly arranged under each fault indicator lamp 1, first heat dissipation holes 8 are symmetrically formed in the vertical direction at one side of the circuit breaker main body 7, first grid heat dissipation plates 9 are clamped at the ports of the first heat dissipation holes 8, nameplates 10 are fixed between the first grid heat dissipation plates 9, second heat dissipation holes 13 are symmetrically formed in the, the inner wall of the second heat dissipation hole 13 is clamped with a second grid heat dissipation plate 14, and the other side of the breaker main body 7 is symmetrically provided with fixing lugs 12.

Preferably, link to each other through damping pivot 16 between arc apron 5 and the 15 one end inner walls of arch-shaped piece, conveniently control the upset of arc apron 5 to cover the switch 4 of notch 3 department, avoid switch 4 to be bumped by the mistake, prevent simultaneously that dust debris from getting into notch 3.

Preferably, the fault indicator lamp 1 and the operation indicator lamp 2 are electrically connected with the breaker main body 7, so that whether the breaker main body 7 has faults or not and whether the operation is normal or not can be visually checked.

Preferably, the first grid heat dissipation plate 9 and the second grid heat dissipation plate 14 are bonded with insulating glue at the inner sides, so that efficient heat dissipation in all directions is ensured, and the safety is high.

Preferably, the outer side of the breaker main body 7 is provided with a flame-retardant shell 11, so that the breaker is high in flame retardance, light in weight and strong in impact resistance.

Preferably, an integrally formed structure is formed between the arch blocks 15 and the flame-retardant shell 11, so that the installation of the arc-shaped cover plate 5 is facilitated.

When specifically using, the utility model relates to a miniature circuit breaker, it can give off fast to have the inside high temperature of ensureing the circuit breaker, and can look for the circuit breaker that breaks down directly perceivedly, avoid the mistake to bump switch 4's advantage, all reserve the thermovent in circuit breaker main part 7's both sides through first louvre 8 and second louvre 13, make the produced a large amount of heats of process that electric arc got into arc extinguishing device arc extinguishing can give off fast, first louvre 8 and second louvre 13 port utilize first net heating panel 9 and second net heating panel 14 to protect the check and keep off, can not produce the potential safety hazard, circuit breaker main part 7 outside switch 4 utilizes arc apron 5 to carry out safety protection, prevent the mistake and bump switch 4, excellent in use effect, be worth extensively promoting.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

1. A small-sized circuit breaker comprises a circuit breaker main body (7) and is characterized in that a notch (3) is formed in the bottom of one side of the circuit breaker main body (7), arch-shaped blocks (15) are symmetrically arranged in the vertical direction of two sides of the notch (3), a switch (4) is installed in the middle of each arch-shaped block (15), an arc-shaped cover plate (5) corresponding to the switch (4) is rotatably connected to the bottom of each arch-shaped block (15), a hidden handle (6) is formed in the outer side of one end of each arc-shaped cover plate (5), a fault indicating lamp (1) is fixed to the top of one side of the circuit breaker main body (7), an operation indicating lamp (2) is correspondingly arranged under each fault indicating lamp (1), first heat dissipation holes (8) are symmetrically formed in the vertical direction of one side of the circuit breaker main body (7), and first grid heat dissipation plates (, be fixed with data plate (10) between first net heating panel (9), second louvre (13) have been seted up to the vertical direction symmetry of circuit breaker main part (7) opposite side, second louvre (13) inner wall joint has second net heating panel (14), circuit breaker main part (7) opposite side symmetry is provided with fixed ear (12).

2. A miniature circuit breaker according to claim 1, wherein: the arc cover plate (5) is connected with the inner wall of one end of the arch block (15) through a damping rotating shaft (16).

3. A miniature circuit breaker according to claim 1, wherein: and the fault indicator lamp (1), the operation indicator lamp (2) and the breaker main body (7) are electrically connected.

4. A miniature circuit breaker according to claim 1, wherein: and insulating glue is adhered to the inner sides of the first grid heat dissipation plate (9) and the second grid heat dissipation plate (14).

5. A miniature circuit breaker according to claim 1, wherein: and a flame-retardant shell (11) is arranged on the outer side of the breaker main body (7).

6. A miniature circuit breaker according to claim 1 or 5, wherein: and an integrally formed structure is arranged between the arch block (15) and the flame-retardant shell (11).