CN217061962U

CN217061962U - Novel double-column type miniature circuit breaker capable of preventing wiring looseness

Info

Publication number: CN217061962U
Application number: CN202220729132.8U
Authority: CN
Inventors: 刘奋; 陈家钿; 张海滨; 张延武; 钱友; 孙加增; 钱进; 高杨; 朱烨婷; 陈家彬; 林怡; 严雄伟
Original assignee: Fujian Xinboyi Electric Power Technology Co ltd; State Grid Fujian Electric Power Co Ltd Minqing County Power Supply Co
Current assignee: Fujian Xinboyi Electric Power Technology Co ltd; State Grid Fujian Electric Power Co Ltd Minqing County Power Supply Co
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-26
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a double-column type novel miniature circuit breaker preventing loose wiring, which structurally comprises a shell, a mechanical locking structure, a handle, an arc extinguishing system, double-column pieces, a wiring terminal, a thermal release, an armature, an overcurrent release, an undervoltage release and a main contact, wherein the double-column piece double-column wiring mode is used for connecting electric wires, the internal main contact is manually operated or electrically switched on, and after the main contact is closed, the main contact is locked at a switching-on position by the mechanical locking structure; when the circuit is short-circuited or seriously overloaded, the armature of the overcurrent release is attracted, so that the mechanical locking structure acts, and the main contact breaks the main circuit; the miniature circuit breaker plays a role in power switch and overload trip in power, can cut off current and simply extinguish arc, and is an electrical product essential for civil and industrial electricity. The problems of loose and falling of electric wires during wiring and the like can be solved.

Description

Novel double-column type miniature circuit breaker capable of preventing wiring looseness

Technical Field

The utility model relates to a prevent not hard up novel miniature circuit breaker of double column formula of wiring belongs to miniature circuit breaker technical field.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. Because of the weak defect of conventional circuit breaker wiring in the market leads to the conflagration that often takes place arouses because of the circuit fault that the wiring is insecure, the miniature circuit breaker of double-column wiring is developed specially.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel miniature circuit breaker of double column formula that anti-looseness of working a telephone switchboard to solve the insecure defect of conventional circuit breaker wiring on the market, solve the problem of the conflagration that often takes place arouses because of the insecure circuit fault who leads to of wiring.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a prevent flexible novel miniature circuit breaker of double column formula of wiring, its structure includes shell, mechanical locking structure, handle, arc extinguishing system, double column spare, binding post, thermal release, armature, overcurrent release, under voltage release, main contact, set the mechanical locking structure that embedded combination used on the shell, be equipped with the main contact that embedded assembly was used on the shell, promote mechanical locking structure when the armature that is equipped with on the overcurrent release inhales, the thermal release concatenates with the binding post main power supply and links to each other, the shell facial make-up is equipped with built-in integral type arc extinguishing system, double column spare is installed on the binding post joint that corresponds quantity.

Further, the thermal trip element is connected to an overcurrent trip coil.

Further, the mechanical locking structure is correspondingly arranged at the connecting position of the handle.

Furthermore, the main contact is correspondingly matched and arranged on the end head of the handle.

Further, an internal under-voltage release is mounted on the shell.

Furthermore, a plurality of fixed-point-mounted wiring terminals are arranged on the shell.

Furthermore, the double-column piece is connected with an electric wire in a double-column wiring mode.

Further, the thermal element of the thermal trip generates heat to bend the bimetal.

Advantageous effects

The utility model relates to a novel miniature circuit breaker of double-column type of preventing that wiring is not hard up connects the electric wire with the mode of double-column spare double-column wiring, and the inside main contact is depending on manual operation or electronic combined floodgate, and after the main contact closed, mechanical locking structure locks the main contact on the position of closing a floodgate; the coil of the over-current release and the thermal element of the thermal release are connected with the main circuit in series, the coil of the under-voltage release is connected with the power supply in parallel, when the circuit is short-circuited or seriously overloaded, the armature of the over-current release is attracted, the mechanical locking structure is made to act, and the main contact breaks the main circuit; when the circuit is overloaded, the thermal element of the thermal release heats to bend the bimetallic strip and push the mechanical locking structure to act; when the circuit is under-voltage, the armature of the under-voltage release is released. The mechanical locking mechanism is also actuated. The miniature circuit breaker plays a role in power switch and overload tripping in the middle of electric power, can cut off current and simply extinguish arc, and can connect electric wires in a double-post and double-post wiring mode, so that the problems of loose and falling of the electric wires in wiring tightness, wire arrangement and the like can be solved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a novel dual-column miniature circuit breaker for preventing loosening of wiring according to the present invention;

fig. 2 is the schematic diagram of the internal assembly structure of the miniature circuit breaker of the present invention.

Fig. 3 is a schematic plan view of the shell of the present invention.

In the figure: the device comprises a shell-1, a mechanical locking structure-2, a handle-3, an arc extinguishing system-4, a double-column piece-5, a wiring terminal-6, a thermal release-7, an armature-8, an over-current release-9, an under-voltage release-10 and a main contact-11.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: a double-column novel miniature circuit breaker capable of preventing wiring looseness structurally comprises a shell 1, a mechanical locking structure 2, a handle 3, an arc extinguishing system 4, double-column pieces 5, wiring terminals 6, a thermal release 7, an armature 8, an overcurrent release 9, an under-voltage release 10 and a main contact 11, wherein the shell 1 is provided with the embedded mechanical locking structure 2 used in a combined mode, the shell 1 is provided with the embedded main contact 11 used in an assembled mode, the armature 8 arranged on the overcurrent release 9 pushes the mechanical locking structure 2 when in suction, the thermal release 7 is connected with a main power supply of the wiring terminals 6 in series, the shell 1 is provided with the embedded integrated arc extinguishing system 4, the double-column pieces 5 are arranged on the wiring terminals 6 in corresponding number, elements of the thermal release 7 are connected with coils of the overcurrent release 9, the mechanical locking structure 2 is correspondingly arranged at the connecting position of the handle 3, the main contact 11 is correspondingly matched and connected with the end of the handle 3, the shell 1 is provided with an internal undervoltage release 10, the shell 1 is provided with a plurality of wiring terminals 6 which are installed at fixed points, the double-column piece 5 adopts a double-column wiring mode to connect wires, and the thermal element of the thermal release 7 generates heat to bend the double-metal sheet.

The twin columns spare 5 that this patent was said adopts the twin columns mode of connection electric wire that links to each other, and the electric wire is not hard up when can solving the wiring tight, winding displacement scheduling problem that drops, puzzlement when thoroughly having solved electrician's wiring can not take place because of the not tight any circuit fault who leads to of wiring.

The size of the shell 1 is 99.8mm, the height is 62mm, and the maximum height of the handle 3 is 73mm, and the width is 36 mm.

For example: when the mechanical locking device is used, the main contact 11 is manually operated or electrically switched on, and after the main contact is closed, the mechanical locking structure 2 locks the main contact 11 at the switching-on position; when the circuit is short-circuited or seriously overloaded, the armature 8 of the over-current release 9 is attracted, the mechanical locking structure 2 is made to act, and the main contact 11 disconnects the main circuit; when the circuit is overloaded, the thermal element of the thermal release 7 heats to bend the bimetallic strip, and pushes the mechanical locking structure 2 to act; when the circuit is undervoltage, the armature of the undervoltage trip 10 is released. The mechanical locking structure 2 is also activated.

The miniature circuit breaker plays the role of power switch and overload trip in the middle of electric power, can cut off current and simply extinguish arc, and is an electrical product essential for civil and industrial electricity. The problems of loose and falling of the electric wires during wiring and the like can be solved, the trouble of electrician wiring is thoroughly solved, the electric wires are connected in a double-post connection mode of the double-post piece 5, and the electric wires are not loosened and fall no matter how the electric wires are shaken, so that any circuit fault caused by loose wiring can not occur.

The utility model provides a problem be the conflagration that the insecure defect of conventional circuit breaker wiring leads to often taking place because of the circuit fault that the wiring insecure arouses causes in the market, the utility model discloses a combination of each other of above-mentioned part connects the electric wire with twin columns spare twin columns wiring mode, and the cooperation inner structure uses in combination, and the electric wire is not hard up when can solving wiring insecure, winding displacement scheduling problem that drops.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel miniature circuit breaker of double column formula that anti-looseness of wiring, its structure includes shell (1), mechanical locking structure (2), handle (3), arc extinguishing system (4), twin columns spare (5), binding post (6), heat release (7), armature (8), overcurrent release (9), under-voltage release (10), main contact (11), its characterized in that:

the improved arc extinguishing device is characterized in that a mechanical locking structure (2) used in an embedded type combination mode is arranged on the shell (1), a main contact (11) used in an embedded type assembly mode is arranged on the shell (1), an armature (8) arranged on the overcurrent release (9) pushes the mechanical locking structure (2) when in suction, the thermal release (7) is connected with a main power supply of the wiring terminal (6) in series, an embedded type integrated arc extinguishing system (4) is arranged on the shell (1), and the double-column piece (5) is arranged on the wiring terminal (6) in a corresponding number in a connecting mode.

2. The novel double-column miniature circuit breaker capable of preventing loosening of the connecting wire as claimed in claim 1, wherein: the thermal trip (7) element is connected to the overcurrent trip (9) coil.

3. The novel double-column miniature circuit breaker capable of preventing loosening of the connecting wire as claimed in claim 1, wherein: the mechanical locking structure (2) is correspondingly arranged at the connecting part of the handle (3).

4. The novel double-column miniature circuit breaker capable of preventing loosening of the connecting wire as claimed in claim 1, wherein: the main contact (11) is correspondingly arranged on the end head of the handle (3).

5. The novel double-column miniature circuit breaker capable of preventing loosening of the connecting wire as claimed in claim 1, wherein: an internal undervoltage release (10) is mounted on the shell (1).

6. The novel double-column miniature circuit breaker capable of preventing loosening of the connecting wire as claimed in claim 1, wherein: the shell (1) is provided with a plurality of fixed-point-mounted wiring terminals (6).