CN216487902U

CN216487902U - Plug-in circuit breaker

Info

Publication number: CN216487902U
Application number: CN202121555503.7U
Authority: CN
Inventors: 卢科军; 顾斌斌; 杨安
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-05-10
Anticipated expiration: 2031-07-08

Abstract

The utility model provides an inserted circuit breaker, includes the shell be provided with at least one circuit breaker utmost point in the shell the one end of circuit breaker utmost point is equipped with button hole and wiring mouth the button hole slides and is equipped with operating button one side that the button hole is close to the wiring mouth is equipped with the instruction window of instruction groove and intercommunication instruction groove the instruction inslot is equipped with the indicator, the indicator is by operating button drive in order to instruct the divide-shut brake state of circuit breaker. According to the plug-in circuit breaker, the indicating piece driven by the operating button is arranged between the operating button and the wiring port, the opening and closing state of the circuit breaker can be obtained by observing the indicating piece from the indicating window, and poor indicating effect caused by arrangement on the operating button is avoided.

Description

Plug-in circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus, in particular to a plug-in circuit breaker.

Background

A circuit breaker refers to 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, and is generally classified into a plug-in type, a fixed type, and a drawer type circuit breaker according to its installation manner. At present, the switching-on and switching-off indication window of the plug-in circuit breaker is usually arranged on an operation button, but because the space of the operation button is small, the interactive area and the button mark printing are limited, and a multi-pole circuit breaker is generally provided with a plurality of operation buttons and indication windows, so that the indication effect is not good, and the manufacturing cost is high.

Disclosure of Invention

The object of the present invention is to overcome the drawbacks of the prior art and to provide a plug-in circuit breaker with an indicating device having a simple structure.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides an inserted circuit breaker, includes the shell be provided with at least one circuit breaker utmost point in the shell the one end of circuit breaker utmost point is equipped with button hole and wiring mouth the button hole slides and is equipped with operating button one side that the button hole is close to the wiring mouth is equipped with the instruction window of instruction groove and intercommunication instruction groove the instruction inslot is equipped with the indicator, the indicator is by operating button drive in order to instruct the divide-shut brake state of circuit breaker.

Furthermore, one end of the indicating groove is opened to be used as an indicating window, the indicating piece is rotatably assembled in the indicating groove, one end of the indicating piece is used as an indicating part to be matched with the indicating window, and the other end of the indicating piece is used as a triggering part to be matched with the operating button.

Furthermore, a partition part is arranged on the shell between the button hole and the wiring port, and the partition part is provided with the indicating groove and the indicating window.

Furthermore, one end of the operating button is located outside the button hole and is provided with an operating face, the end of the partition part is provided with a shielding part protruding towards one side of the operating button, the shielding part partially shields the operating face of the operating button, and the indicating window is arranged on the shielding part.

Furthermore, a matching groove for driving the indicating piece is arranged on the side wall, close to the indicating groove, of the operating button, and a driving inclined plane is arranged in the matching groove along the sliding direction of the operating button.

Further, the indicator includes the body of rod, the one end of the body of rod is equipped with connecting portion as the cooperation of instruction portion and instruction window and indicates circuit breaker divide-shut brake state, at the middle part of the body of rod, connecting portion rotate with the instruction groove and are connected, and the other end of the body of rod sets up trigger part to operating button's direction protrusion, and operating button passes through trigger part drive indicator and swings at the instruction inslot.

Further, the instruction portion is the baffle that sets up in body of rod one end, the area of baffle is greater than the area of instructing the window, is equipped with corresponding divide-shut brake sign at one side face of baffle, and at the swing in-process of indicator, the baffle seals the window totally and makes the divide-shut brake sign that corresponds expose in instructing the window.

And furthermore, corresponding opening and closing identification is arranged at the edge of the indicating window, and one end of the rod body of the indicating piece is used as an indicating part to stretch into the indicating window and points to the opening and closing identification at the edge of the indicating window along with the swinging of the indicating piece.

Further, instruct groove and button hole parallel arrangement, instruct the outside one end in groove to open as instructing the window, instruct the inside one end in groove to open and make trigger part stretch into in the shell with the operating button cooperation, to extend to both sides at instruction groove middle part and form the spacing groove with connecting portion normal running fit, instruct the groove to be close to the regional sunken formation that instructs the window and supply the wobbling movable groove of baffle.

Furthermore, a plurality of breaker poles are arranged in parallel in the shell, and an indicating groove, an indicating window and an indicating piece are arranged on one side, close to the wiring port, of the button hole of one breaker pole.

According to the plug-in circuit breaker, the indicating piece driven by the operating button is arranged between the operating button and the wiring port, the opening and closing state of the circuit breaker can be obtained by observing the indicating piece from the indicating window, and poor indicating effect caused by arrangement on the operating button is avoided.

In addition, instruction portion adopts the baffle structure, and the baffle structure will instruct the window to seal completely, makes the inside closed whole that becomes of circuit breaker, avoids receiving external disturbance, simultaneously, can directly set up the sign on the baffle, avoids printing the sign in operating button and wiring narrow and small space between the mouth.

In addition, in the multi-pole circuit breaker, only one circuit breaker pole is provided with the indicating groove, the indicating window and the indicating piece, so that the manufacturing cost is reduced, and the manufacturing process is simplified.

Drawings

Fig. 1 is a schematic diagram of a plug-in circuit breaker of the present invention;

fig. 2 is a schematic view of the structure of an operating button and an indicator in a plug-in circuit breaker according to the present invention;

fig. 3 is a schematic view of a structure of a button hole and an indication groove in a plug-in type circuit breaker according to the present invention;

fig. 4 is a schematic view of an operation button in a plug-in type circuit breaker according to the present invention;

fig. 5 is a schematic view of the structure of an indicator in a plug-in circuit breaker according to the present invention.

Detailed Description

The following describes a plug-in circuit breaker according to an embodiment of the present invention with reference to the embodiments shown in fig. 1 to 5. A plug-in type circuit breaker of the present invention is not limited to the description of the following embodiments.

The utility model provides an inserted circuit breaker, includes shell 1 be provided with at least one circuit breaker utmost point in the shell 1 the one end of circuit breaker utmost point is equipped with button hole 12 and wiring mouth 11 it has operating button 2 to slide in the button hole 12 one side that the button hole 12 is close to wiring mouth 11 is equipped with indicating groove 4 and the instruction window 41 that communicates indicating groove 4 be equipped with indicator 5 in the indicating groove 4, indicator 5 is driven in order to indicate the divide-shut brake state of circuit breaker by operating button 2.

According to the plug-in circuit breaker, the indicating piece 5 driven by the operating button 2 is arranged between the operating button 2 and the wiring port 11, the opening and closing state of the circuit breaker can be obtained by observing the indicating piece 5 through the indicating window 41, and poor indicating effect caused by arrangement on the operating button 2 is avoided.

In connection with fig. 1-5, a detailed embodiment is provided, said plug-in circuit breaker comprising a housing 1, at least one breaker pole is arranged in the shell 1, two ends of each breaker pole are respectively provided with a wiring port 11, one end provided with one wiring port 11 is also provided with a button hole 12, one of the wiring ports 11 is used as a wire inlet, the other wiring port 11 is used as a wire outlet, the wire inlet and the wire outlet are respectively provided with a wire inlet terminal and a wire outlet terminal correspondingly, an operating mechanism, a contact mechanism and an arc extinguish chamber are arranged between the incoming terminal and the outgoing terminal, the contact mechanism is respectively electrically connected with the incoming line terminal and the outgoing line terminal, the operating mechanism is linked with the contact mechanism and is used for driving the contact mechanism to open and close, the arc extinguishing chamber is positioned on one side of the contact mechanism and used for extinguishing electric arcs generated when the contact mechanism is broken. In addition, a protection mechanism can be arranged between the incoming line terminal and the outgoing line terminal, the protection mechanism is matched with the operating mechanism, and the protection mechanism can be a short-circuit protection mechanism and/or an overload protection mechanism and is used for triggering the operating mechanism to release and power off when a main line has a short-circuit or overload fault.

The circuit breaker pole switching device is characterized in that a button hole 12 is further formed in one end of the circuit breaker pole, the button hole 12 is located on one side of a wiring port 11, an operating button 2 is assembled in the button hole 12 in a sliding mode, one end of the operating button 2 is located on the outer side of the button hole 12 and provided with an operating surface 22, the other end of the operating button 2 extends into the shell 1 and is connected with an operating mechanism in a linkage mode to achieve switching-on and switching-off of the circuit breaker pole through manual operation, preferably, a connecting hole 21 is formed in the other end of the operating button 2, and the connecting hole 21 is used for being matched with a connecting rod of the operating mechanism in a plug-in mode to drive the operating mechanism.

As shown in fig. 3, in this embodiment, an indication groove 4 and an indication window 41 communicating with the indication groove 4 are provided between the operation button 2 and the wire connection port 11, the indication groove 4 and the indication window 41 are located on one side of the button hole 12 close to the wire connection port 11, an indication member 5 driven by the operation button 2 is assembled in the indication groove 4, the indication member 5 indicates the switching on/off state of the circuit breaker by swinging the switching position, so that a user can directly obtain the operating state of the circuit breaker through the indication window 41. Compared with the existing structure that the indicating piece 5 is arranged inside the operating button 2, the indicating piece 5 positioned between the operating button 2 and the wiring port 11 has more assembly space, so that the problem of poor indicating effect caused by limited assembly space is avoided, and the structure can not additionally increase the volume of the circuit breaker.

Preferably, a partition portion 3 is provided between the button hole 12 and the wire connection port 11, the partition portion 3 partitions the operation button 2 from the wire connection port 11 to prevent interference between the operation of the operation button 2 and the wire connection, and the indication groove 4 is provided in the partition portion 3. Preferably, as shown in fig. 1 and 2, the end of the partition 3 is provided with a shielding portion protruding toward the operation button 2, and the shielding portion partially shields the operation surface 22 of the operation button 2 to prevent an erroneous collision with the operation button 2. Preferably, the indication window 41 is provided on the shielding portion. The indicating groove 4 is arranged in the middle of the partition part 3 and is parallel to the button hole 12, one end of the indicating groove 4, which is outward, is opened to form an indicating window 41, preferably, the inner diameter of the indicating window 41 is smaller than that of the indicating groove 4, so that the opening of the indicating window 41 on the shell 1 is reduced as much as possible, and the sealing performance of the circuit breaker is prevented from being damaged, one end, which is inward, of the indicating groove 4 is opened to enable the indicating piece 5 rotatably assembled in the indicating groove to extend into the shell 1, and the operating button 2 arranged in the button hole 12 is matched with one end, which extends into the shell 1, of the indicating piece 5 to drive the indicating piece 5 to swing.

As shown in fig. 4, the operating button 2 is a block structure as a whole, one end of the operating button 2 is located outside the button hole 12 and is provided with an operating surface 22, when the circuit breaker is in the opening state, one side edge of the operating surface 22 is slightly lower than one side edge of the partition portion 3 and abuts against the partition portion 3, that is, the partition portion partially shields the operating surface 22, the other end of the operating button 2 extends into the housing 1 and is provided with a connecting hole 21, the operating button 2 is linked with the operating mechanism through the connecting hole 21, a matching groove 23 for driving the indicating member 5 is arranged on one side wall of the operating button 2 close to the indicating groove 4, and a driving inclined surface is arranged in the matching groove 23 along the sliding direction of the operating button 2. Preferably, the matching groove 23 is a strip-shaped open groove, an opening of the matching groove 23 is located on one side far away from the operation surface 22, a tail end of the matching groove 23 extends to the middle of a side wall of the operation button 2 and forms a driving inclined plane, and when the operation button 2 moves towards a closing direction, the matching groove 23 provides a matching sliding track for the indicator 5.

Referring to fig. 3-5, a specific structure of an indicator 5 and an indicator groove 4 is provided, where the indicator 5 includes a rod body, one end of the rod body is used as an indicator portion to cooperate with an indicator window 41 for indicating an opening/closing state of a circuit breaker, preferably, the indicator portion is a baffle 51 disposed at one end of the rod body, a side plate surface of the baffle 51 is provided with a corresponding closing mark and an opening mark, correspondingly, a movable groove 43 for swinging the baffle 51 is formed in a recessed area of the indicator groove 4 near the indicator window 41, an area of the baffle 51 is larger than an area of the indicator window 41, during swinging of the indicator 5, the baffle 51 completely seals the window and exposes the corresponding closing mark or opening mark in the indicator window 41, a connecting portion 52 is disposed in a middle of the rod body, the connecting portion 52 is a cylindrical protrusion similar to a connecting shaft, and a limiting groove 42 rotatably engaged with the connecting portion 52 is formed in the middle of the indicator groove 4 and extends to both sides, the other end of the rod body is provided with a trigger part 53 in a protruding way, preferably, the trigger part 53 protrudes towards the operation button 2 and is matched with the matching groove 23, when the operation button 2 moves towards the closing method direction, the trigger part 53 slides towards the tail end of the matching groove 23 along the opening of the matching groove 23, when the driving inclined plane of the sliding groove 23 is pressed, the trigger part 53 enables the indicator 5 to swing towards the closing direction, the closing mark of the baffle plate 51 is correspondingly displayed in the indication window 41 and is used for displaying the closing state of the circuit breaker, when the operation button 2 moves towards the opening direction, the trigger part 53 is separated from the driving inclined plane of the matching groove 23, the trigger part 53 slides towards the opening direction of the matching groove 23, and the indicator 5 swings to enable the opening mark of the baffle plate 51 to be displayed in the indication window 41 and is used for indicating the opening state of the circuit breaker. Of course, a return spring can also be provided for driving the indicator piece 5 to swing to one side. The embodiment is not provided with a return spring, and the automatic swinging to one side is realized through the gravity distribution of the two ends of the indicating piece 5.

Of course, the indicator 5 may not be provided with the baffle 51, one end of the indicator 5 directly extends into the indication window 41 as an indication part, an opening mark and a closing mark are provided at the edge of the indication window 41, preferably, the closing mark and the opening mark are located at two ends close to and far from the operation button 2, when the operation button 2 performs opening and closing operations, one end of the indicator 5 directly swings in the indication window 41 under the driving of the operation button 2 to point to the closing or opening mark, and at this time, one end of the indicator 5 cooperates with the indication window 41 to indicate the opening and closing state of the circuit breaker, but this structure may cause poor closing of the circuit breaker because the indication window 41 is not closed.

In addition, when a plurality of circuit breaker poles are arranged in parallel in the housing 1, the operating buttons 2 of the adjacent circuit breaker poles are linked, preferably, the indicating groove 4, the indicating window 41 and the indicating piece 5 are arranged between the button hole 12 of the circuit breaker pole located at the middle and the wiring port 11, the indicating groove 4 and the indicating window 41 are also arranged on one side of the button hole 21 close to the wiring port 11, of course, one circuit breaker pole can be arbitrarily selected for arrangement, and the indicating groove 4, the indicating window 41 and the indicating piece 5 are reduced in arrangement, so that the manufacturing cost is reduced, and the manufacturing process is simplified.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. A plug-in circuit breaker, includes shell (1) be provided with at least one circuit breaker utmost point in shell (1) the one end of circuit breaker utmost point is equipped with button hole (12) and wiring mouth (11) the push button hole (12) sliding fit has operating button (2), its characterized in that: an indicating groove (4) and an indicating window (41) communicated with the indicating groove (4) are arranged on one side, close to the wiring port (11), of the button hole (12), an indicating piece (5) is assembled in the indicating groove (4), and the indicating piece (5) is driven by the operating button (2) to indicate the opening and closing state of the circuit breaker.

2. A plug-in circuit breaker as claimed in claim 1, characterized in that: one end of the indicating groove (4) is opened to serve as an indicating window (41), the indicating piece (5) is rotatably assembled in the indicating groove (4), one end of the indicating piece (5) serves as an indicating part and is matched with the indicating window (41), and the other end of the indicating piece (5) serves as a triggering part (53) and is matched with the operating button (2).

3. A plug-in circuit breaker as claimed in claim 1, characterized in that: the shell (1) between the button hole (12) and the wiring port (11) is provided with a partition part (3), and the partition part (3) is provided with the indication groove (4) and an indication window (41).

4. A plug-in circuit breaker as claimed in claim 3, characterized in that: one end of the operating button (2) is located outside the button hole (12) and is provided with an operating face (22), the end of the partition part (3) is provided with a shielding part protruding towards one side of the operating button (2), the shielding part partially shields the operating face (22) of the operating button (2), and the indicating window (41) is arranged on the shielding part.

5. A plug-in circuit breaker as claimed in claim 1, characterized in that: the side wall of the operation button (2) close to the indication groove (4) is provided with a matching groove (23) for driving the indication piece (5), and the matching groove (23) is provided with a driving inclined surface along the sliding direction of the operation button (2).

6. A plug-in circuit breaker as claimed in claim 1, characterized in that: indicator (5) are including the body of rod, the one end of the body of rod is equipped with connecting portion (52) as instruction portion and instruction window (41) cooperation instruction circuit breaker divide-shut brake state at the middle part of the body of rod, connecting portion (52) rotate with indicating groove (4) and are connected, and the other end of the body of rod sets up trigger part (53) to the direction protrusion of operating button (2), and operating button (2) are through trigger part (53) drive indicator (5) swing in indicating groove (4).

7. A plug-in circuit breaker as claimed in claim 6, characterized in that: the indicating part is baffle (51) of setting in body of rod one end, the area of baffle (51) is greater than the area of instructing window (41), is equipped with corresponding divide-shut brake sign at one side face of baffle (51), and in the swing in-process of indicator (5), baffle (51) are closed the window totally and make corresponding divide-shut brake sign expose in instructing window (41).

8. A plug-in circuit breaker as claimed in claim 6, characterized in that: and corresponding switching-on and switching-off marks are arranged at the edge of the indicating window (41), and one end of the rod body of the indicating piece (5) is used as an indicating part and extends into the indicating window (41) and points to the switching-on and switching-off marks at the edge of the indicating window (41) along with the swinging of the indicating piece (5).

9. A plug-in circuit breaker as claimed in claim 7, characterized in that: indicate groove (4) and button hole (12) parallel arrangement, indicate that the outside one end in groove (4) is opened and is regarded as instruction window (41), indicate that the inside one end in groove (4) is opened and is made trigger part (53) stretch into shell (1) in with operating button (2) cooperation, extend to both sides in indicating groove (4) middle part and form spacing groove (42) with connecting portion (52) normal running fit, indicate that the regional sunken formation that groove (4) are close to instruction window (41) supplies baffle (51) wobbling activity groove (43).

10. A plug-in circuit breaker according to any one of claims 1 to 9, characterized in that: a plurality of breaker poles are arranged in parallel in the shell (1), and an indicating groove (4), an indicating window (41) and an indicating piece (5) are arranged on one side, close to a wiring port (11), of a button hole (12) of one breaker pole.