High-performance circuit breaker

Abstract

The utility model discloses a high-performance circuit breaker, which relates to the technical field of circuit breakers, and comprises a shell and a handle on the inner wall of the shell, the inside of the handle is rotatably connected with a U-shaped drag hook, the high-performance circuit breaker also comprises a jump pin arranged at one end of the U-shaped drag hook, the surface of the jump pin is provided with a support spring, and the support spring is connected with the U-shaped drag hook. A movable assembly is fixedly connected to the center of the shell and comprises an iron support and a movable plate. The contact support is arranged in the shell, the interior of the shell is rotatably connected with a lock catch, the bottom of the lock catch is sleeved with a bimetal drag hook, and one end of the bimetal drag hook is sleeved with a moving contact. According to the utility model, through the arrangement of the movable assembly, the effect of replacing an existing circuit breaker magnetic ring device with the iron support and the movable plate is achieved, after the iron support and the movable plate are replaced, the complexity in the manufacturing process is reduced, the reliability and durability of the circuit breaker are improved, the circuit breaker is easier to maintain, and the overall cost of the circuit breaker is obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely is a kind of high-performance circuit breaker. BACKGROUND

[0002] Circuit breaker refers to the switch device that can be closed, load and open the current under normal loop condition and can be closed, load and open the current under abnormal loop condition within specified time, circuit breaker is generally composed of contact system, arc extinguishing system, operating mechanism, release, shell etc., circuit breaker can be used to distribute electric energy, and carry out protection to power supply line and motor etc., when serious overload or short circuit and under-voltage fault etc. occur, it can automatically cut off circuit.

[0003] The existing high-performance circuit breaker is inconvenient to replace the magnetic ring device of existing circuit breaker with iron support and movable plate, it is difficult to reduce the complexity in manufacturing process, and the overall cost of circuit breaker is easily increased. INVENTION CONTENTS

[0004] The utility model provides a kind of high-performance circuit breaker, with the advantages that it is convenient to replace the magnetic ring device of existing circuit breaker with iron support and movable plate, reduce the complexity in manufacturing process, and significantly reduce the overall cost of circuit breaker, to solve the problem that the existing high-performance circuit breaker is inconvenient to replace the magnetic ring device of existing circuit breaker with iron support and movable plate, it is difficult to reduce the complexity in manufacturing process, and the overall cost of circuit breaker is easily increased.

[0005] To realize the purpose of being convenient to replace the magnetic ring device of existing circuit breaker with iron support and movable plate, reduce the complexity in manufacturing process, and significantly reduce the overall cost of circuit breaker, the utility model provides the following technical scheme: a kind of high-performance circuit breaker, including shell and handle of shell inner wall, the inside rotation of the handle is connected with U type draw hook, still include: the jump buckle of being arranged in U type draw hook one end, the surface of the jump buckle is provided with support spring, the center of the shell is fixedly connected with movable assembly, the movable assembly includes iron support and movable plate;The contact support being arranged in shell interior, the inside rotation of the shell is connected with lock catch, the bottom of the lock catch is sleeved with double gold draw hook, one end of the double gold draw hook is sleeved with movable contact;Movable contact spring being arranged in the surface of movable contact, the side of the bottom of movable contact is provided with braided wire, one end of the braided wire is fixedly connected with double gold, one side of the double gold is fixedly connected with soft connection piece.

[0006] As a preferred technical scheme of the utility model, the movable assembly includes iron support fixedly connected at the center of shell, the inside rotation of the iron support is connected with movable plate.

[0007] As a preferred technical scheme of the utility model, the both sides of the shell are fixedly connected with wiring terminals, and the top of the wiring terminal is threadedly connected with a threaded bolt.

[0008] As a preferred technical scheme of the utility model, the inner wall of the shell is fixedly connected with a support plate, and the inside of the support plate is fixedly connected with a static contact.

[0009] As a preferred technical scheme of the utility model, the inner bottom wall of the shell is fixedly connected with an arc extinguishing chamber, and the arc extinguishing chamber is provided with a groove matched with the static contact on one side.

[0010] As a preferred technical scheme of the utility model, the bottom of the shell is provided with a plug-in interface, and the side of the double-gold bottom is fixedly connected with an arc leading plate.

[0011] As a preferred technical scheme of the utility model, the top of the shell is provided with a rotating groove matched with a handle, and the inner wall of the shell is fixedly connected with a plurality of groups of mounting holes.

[0012] As a preferred technical scheme of the utility model, the bottom of the side of the shell is clamped with a limiting piece, and the inside of the limiting piece is threadedly connected with a support column.

[0013] Compared with the prior art, the utility model provides a high-performance circuit breaker with the following beneficial effects:

[0014] The high-performance circuit breaker, through the setting of the movable assembly, under the short circuit condition, the current value is raised, so that the raised current passes through the static contact and the iron support, and then the movable plate on the iron support is deformed by heat, the movable plate rotates and opens on the iron support, and then the lock catch and the movable contact are touched, and the circuit is immediately cut off, the electric arc formed at the contact point is attracted and separated into a plurality of small electric arcs along the double-gold surface by the arc extinguishing chamber, the heat generated by the electric arc is reduced, the circuit breaker is prevented from being damaged, so that the effect of replacing the existing circuit breaker magnetic ring device with the iron support and the movable plate is achieved, after being replaced by the iron support and the movable plate, the complexity in the manufacturing process is reduced, the reliability and durability of the circuit breaker are improved, the circuit breaker is more easily maintained, and the overall cost of the circuit breaker is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the internal front view structure schematic view of the utility model;

[0017] Figure 3 It is the internal plan structure schematic view of the utility model;

[0018] Figure 4 It is the internal plane structure schematic view of the utility model;

[0019] Figure 5 The utility model discloses a movable board structure schematic diagram.

[0020] In the drawing: 1, shell, 2, handle, 3, U-shaped draw hook, 4, jump buckle, 5, support spring, 6, movable assembly, 601, iron support, 602, movable board, 7, contact support, 8, lock catch, 9, double gold draw hook, 10, movable contact, 11, movable contact spring, 12, braided wire, 13, double gold, 14, soft connecting sheet, 15, wiring terminal, 16, threaded bolt, 17, support plate, 18, static contact, 19, arc extinguishing chamber, 20, arc striking plate, 21, limiting sheet, 22, support column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model discloses a kind of high-performance circuit breaker, including shell 1 and the handle 2 of shell 1 inner wall, the inside rotation connection of handle 2 has U-shaped draw hook 3, still include: jump buckle 4 is arranged at the one end of U-shaped draw hook 3, the surface of jump buckle 4 is provided with support spring 5, the center of shell 1 is fixedly connected with movable assembly 6, movable assembly 6 includes iron support 601 and movable board 602;Contact support 7 is arranged in the inside of shell 1, the inside rotation connection of shell 1 has lock catch 8, lock catch 8 bottom is sleeved with double gold draw hook 9, one end of double gold draw hook 9 is sleeved with movable contact 10;Movable contact spring 11 is arranged on the surface of movable contact 10, one side of movable contact 10 bottom is provided with braided wire 12, one end of braided wire 12 is fixedly connected with double gold 13, one side of double gold 13 is fixedly connected with soft connecting sheet 14.

[0023] Specifically, movable assembly 6 includes iron support 601 fixedly connected at the center of shell 1, the inside rotation connection of iron support 601 has movable board 602.

[0024] In the embodiment, iron support 601 and movable board 602 replace existing circuit breaker magnetic ring device, which is conducive to reducing complexity in manufacturing process, improving reliability and durability of circuit breaker, easier to maintain, and significantly reducing the overall cost of circuit breaker.

[0025] Specifically, the both sides of shell 1 are fixedly connected with wiring terminal 15, and the top of wiring terminal 15 is threadedly connected with threaded bolt 16.

[0026] In this embodiment, the terminal 15 is an important component of the wire connection, which is used to connect the wire and provide effective electrical connection for different electrical elements or circuits, while the threaded bolt 16 is used to fix and limit the wire.

[0027] Specifically, the inner wall of the shell 1 is fixedly connected with a support plate 17, and the inner part of the support plate 17 is fixedly connected with a static contact 18.

[0028] In this embodiment, the support plate 17 is convenient for supporting the static contact 18, and the static contact 18 mainly undertakes the task of current conduction and cut-off. In the normal working state, the static contact 18 is in close contact with the moving contact 10 to form a good conductive path, ensuring that the current can flow smoothly, while when the circuit is abnormal, such as overload or short circuit, the action mechanism of the circuit breaker drives the moving contact 10 to separate from the static contact 18 quickly, thereby cutting off the current in time to prevent the fault from further expanding.

[0029] Specifically, the inner bottom wall of the shell 1 is fixedly connected with an arc-extinguishing chamber 19, and one side of the arc-extinguishing chamber 19 is provided with a groove matched with the static contact 18.

[0030] In this embodiment, when short-circuiting, the arc formed at the contact point is attracted and separated into multiple small arcs along the surface of the double gold 13 by the arc-extinguishing chamber 19, reducing the heat generated by the arc and avoiding damage to the circuit breaker.

[0031] Specifically, the bottom of the shell 1 is provided with a plug-in interface, and one side of the bottom of the double gold 13 is fixedly connected with an arc guide plate 20.

[0032] In this embodiment, the plug-in interface is convenient for installing the circuit breaker, and the arc guide plate 20 is convenient for guiding the path of the arc.

[0033] Specifically, the top of the shell 1 is provided with a rotating groove matched with the handle 2, and the inner wall of the shell 1 is fixedly connected with a plurality of groups of mounting holes.

[0034] In this embodiment, the rotating groove is convenient for rotating the handle 2, and the mounting hole is convenient for closing and assembling the shell 1.

[0035] Specifically, the bottom of one side of the shell 1 is clamped with a limiting piece 21, and the inner part of the limiting piece 21 is threadedly connected with a support column 22.

[0036] In this embodiment, the limiting piece 21 is convenient for fixing the support column 22, and the support column 22 is convenient for extruding the double gold 13.

[0037] The working principle and use process of the utility model: under the short circuit condition, the current value is raised, so that the raised current passes through the static contact 18 and the iron support 601, and then the movable plate 602 on the iron support 601 is deformed by heat, the movable plate 602 plate rotates and opens on the iron support 601, and then the lock catch 8 and the movable contact 10 are touched, and the circuit is immediately cut off, the electric arc formed by the contact point is attracted along the double gold 13 surface and is separated into multiple groups of small electric arcs by the arc extinguishing chamber 19, the heat generated by the electric arc is reduced, and the circuit breaker is prevented from being damaged.

[0038] In conclusion, the high-performance circuit breaker, through the setting of the movable assembly 6, achieves the effect of replacing the existing circuit breaker magnetic ring device with the iron support 601 and the movable plate 602, and after being replaced with the iron support 601 and the movable plate 602, the complexity in the manufacturing process is reduced, the reliability and durability of the circuit breaker are improved, the circuit breaker is more easily maintained, and the overall cost of the circuit breaker is significantly reduced.

[0039] It should be noted that in this document, such as the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or equipment including the element.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-performance circuit breaker, comprising a housing (1) and a handle (2) on the inner wall of the housing (1), wherein a U-shaped hook (3) is rotatably connected inside the handle (2), characterized in that, Also includes: A jump buckle (4) is provided at one end of the U-shaped hook (3). A support spring (5) is provided on the surface of the jump buckle (4). A movable component (6) is fixedly connected at the center of the outer shell (1). The movable component (6) includes an iron bracket (601) and a movable plate (602). A contact support (7) is provided inside the housing (1). A latch (8) is rotatably connected inside the housing (1). A double gold hook (9) is sleeved at the bottom of the latch (8). A moving contact (10) is sleeved at one end of the double gold hook (9). A moving contact spring (11) is provided on the surface of the moving contact (10). A braided wire (12) is provided on one side of the bottom of the moving contact (10). One end of the braided wire (12) is fixedly connected to a double metal plate (13). A flexible connecting piece (14) is fixedly connected to one side of the double metal plate (13).

2. The high-performance circuit breaker according to claim 1, characterized in that: The movable component (6) includes an iron bracket (601) fixedly connected to the center of the outer shell (1), and a movable plate (602) is rotatably connected inside the iron bracket (601).

3. A high-performance circuit breaker according to claim 1, characterized in that: Both sides of the outer casing (1) are fixedly connected to terminal blocks (15), and the top of the terminal blocks (15) is threadedly connected to a threaded bolt (16).

4. A high-performance circuit breaker according to claim 1, characterized in that: A support plate (17) is fixedly connected to the inner wall of the outer shell (1), and a stationary contact (18) is fixedly connected inside the support plate (17).

5. A high-performance circuit breaker according to claim 1, characterized in that: An arc-extinguishing chamber (19) is fixedly connected to the inner bottom wall of the outer shell (1), and a groove adapted to the stationary contact (18) is provided on one side of the arc-extinguishing chamber (19).

6. A high-performance circuit breaker according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a plug-in interface, and an arc-guiding plate (20) is fixedly connected to one side of the bottom of the double metal (13).

7. A high-performance circuit breaker according to claim 1, characterized in that: The top of the outer shell (1) is provided with a rotating groove that is compatible with the handle (2), and the inner wall of the outer shell (1) is fixedly connected with a number of mounting holes.

8. A high-performance circuit breaker according to claim 1, characterized in that: A limiting piece (21) is snapped into the bottom of one side of the outer shell (1), and a support column (22) is threaded inside the limiting piece (21).

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