CN212257308U

CN212257308U - Circuit breaker with fault indication

Info

Publication number: CN212257308U
Application number: CN202021335654.7U
Authority: CN
Inventors: 刘凯; 吴果福; 贺棉怀
Original assignee: Garcia Electrical Appliance Co ltd
Current assignee: Garcia Electrical Appliance Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-12-29
Anticipated expiration: 2030-07-09

Abstract

A circuit breaker with fault indication. The method is characterized in that: an indication window is arranged on the shell; the handle is hinged on the shell, and the bottom of the handle is provided with a fan-shaped mounting groove; the upper end of the moving contact extends into the fan-shaped mounting groove to form movable fit with the handle; the lock catch is hinged in the shell and is provided with a clamping groove which can form clamping matching with the jump buckle; one end of the jump buckle is hinged with the shell, the other end of the jump buckle can be correspondingly matched with the clamping groove, the jump buckle is provided with a tripping part correspondingly matched with the moving contact and a resetting part correspondingly matched with the handle, and the jump buckle is connected with the moving contact through a tension spring; one end of the fault indicator is connected with the jump buckle, and the other end of the fault indicator extends to the indication window. The tripping device has the advantages that under normal conditions, the tripping button is kept still regardless of the switching-off or switching-on state, the fault indicator does not indicate, when faults such as short circuit or overload occur, tripping action is realized to trip, and the tripping button can drive the fault indicator to act, so that fault indication is realized.

Description

Circuit breaker with fault indication

Technical Field

The utility model relates to a switch field, concretely relates to take fault indication's circuit breaker.

Background

At present, all small-sized circuit breakers are provided with indicating parts with different structures and used for indicating the working state of the circuit breaker.

However, the existing indicating piece is usually linked with a bracket in the circuit breaker, and the indicating piece can be driven to act to indicate no matter normal opening operation or fault tripping is performed, so that an operator cannot determine whether the circuit breaker is disconnected due to normal operation or fault disconnection according to the indicating piece of the circuit breaker.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a take fault indication's circuit breaker.

The utility model discloses the technical scheme who adopts: a circuit breaker with fault indication comprises a shell, a handle, a moving contact, a lock catch, a trip and a fault indication piece; an indication window is arranged on the shell; the handle is hinged on the shell, and a fan-shaped mounting groove is formed in the bottom of the handle; the upper end of the moving contact extends into the fan-shaped mounting groove to form movable fit with the handle; the lock catch is hinged in the shell and is provided with a clamping groove which can form clamping matching with the jump buckle; the jump buckle is in an n shape, one end of the jump buckle is hinged with the shell, the other end of the jump buckle can be correspondingly matched with the clamping groove, the jump buckle is provided with a tripping part correspondingly matched with the moving contact and a resetting part correspondingly matched with the handle, and the jump buckle is connected with the moving contact through a tension spring; one end of the fault indicator is connected with the jump buckle, and the other end of the fault indicator extends to the indication window.

The position that lies in the instruction window below on the casing is equipped with the spacing movable groove that is greater than the instruction window, the tip bending type of fault indicator becomes the instruction portion to stretch into spacing movable groove, instruction portion has the first position that lies in the instruction window below and the second position that staggers mutually with the instruction window.

The tip of trouble indicator is equipped with the slot hole, the portion that resets is the activity setting round axle on jumping the knot, jump the knot and constitute the linkage with the slot hole through the portion that resets with trouble indicator and be connected.

And a multi-pole linkage rod is further arranged between the jump buckle and the lock catch and is hinged with the shell, and a linkage part correspondingly matched with the multi-pole linkage rod is arranged on the jump buckle.

And a contact piece with a smooth surface is arranged on the surface of the part of the lock catch, which is contacted with the jump buckle.

The contact piece is a stainless steel sheet and is connected with the lock catch in a welding mode.

The contact piece extends into the clamping groove and can be in limit fit with the end part of the jump buckle.

The utility model has the advantages that: by adopting the scheme, the fault indicator is in linkage connection with the tripping button, and under the normal condition, the tripping button is kept still regardless of the switching-off or switching-on state, so that the fault indicator cannot indicate the switching-off state normally, and only when faults such as short circuit or overload occur, tripping is realized by the tripping action, and the fault indicator can act to indicate, so that the fault indication function is realized.

Drawings

Fig. 1 is the utility model discloses structural schematic during combined floodgate.

Fig. 2 is a schematic structural diagram of the embodiment of the present invention during normal opening.

Fig. 3 is a schematic structural diagram of the embodiment of the present invention when tripping due to a fault.

Fig. 4 is a schematic structural view of a handle according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a lock according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of the jump buckle according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a fault indicator according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the circuit breaker with the fault indication function comprises a shell 1, a handle 2, a moving contact 3, a lock catch 4, a trip catch 5, a fault indication part 6, a fixed contact, an arc extinguish chamber, a wiring terminal and a tripping system.

An indication window 11 is arranged at the upper end of the shell 1.

The handle 2 is hinged on the shell 1, and the bottom of the handle is provided with a fan-shaped mounting groove 21.

The upper end of the moving contact 3 extends into the fan-shaped mounting groove 21 of the handle 2 and is movably matched with the handle 2, and the lower end of the moving contact is provided with a moving contact corresponding to the fixed contact.

Hasp 4 articulates in casing 1 to be equipped with can constitute screens complex draw-in groove 41 with jump knot 5, hasp 4 corresponds the cooperation with the tripping system, can realize the dropout with jump knot 5 separation under the action of tripping system, just be equipped with the reset torsion spring between hasp 4 and casing 1, can reset after the dropout.

One end of the trip buckle 5 is hinged with the shell 1, the other end of the trip buckle can be correspondingly matched with the clamping groove 41, a connecting hole is formed in the middle of the trip buckle 5 and is connected with the moving contact 3 through a tension spring 7, the tension spring 7 can provide upward tension for the moving contact 3, closed final pressure is provided for the moving contact 3 during closing, quick disconnection of the moving contact 3 can be achieved during opening, meanwhile, the tension spring 7 can provide downward tension for the trip buckle 5, and the trip buckle 5 can be driven to act to achieve quick tripping during tripping.

The trip 5 is further provided with a tripping part 51 and a reset part 52, the tripping part 51 is correspondingly matched with the movable contact 3 and can be contacted with the movable contact 3 during tripping to push the movable contact to act to realize rapid breaking, the reset part 52 is correspondingly matched with the handle 2 and can push the trip 5 to reset through the action of the handle 2 and be buckled with the clamping groove 41 of the lock catch 4.

One end of the fault indicator 6 is connected with the jump buckle 5, and the other end of the fault indicator extends to the indication window 11.

The position of casing 1 below being located instruction window 11 is equipped with the spacing movable groove 12 that is greater than instruction window 11, the one end tip bending type of fault indicator 6 becomes instruction portion 61 to stretch into spacing movable groove 12, the other end is formed with elongated hole 62, reset portion 52 is the cylinder axle that sets up on jump buckle 5, jump buckle 5 and fault indicator 6 constitute the linkage through reset portion 52 and elongated hole 62 and be connected, along with jump buckle 5's action, instruction portion 61 has the first position that is located instruction window 11 below and the second position that staggers mutually with instruction window 11, and it realizes the indicative function through the position relation with instruction window 11.

In the circuit breaker with fault indication, under a normal state, the trip buckle 5 is limited by the lock catch 4, and the trip buckle 5 cannot act no matter whether the circuit is switched on or switched off, so that the fault indication piece 6 cannot perform indication action due to normal switching-on and switching-off, only when faults such as short circuit or overload occur, the trip buckle 5 is tripped by the action of the lock catch 4, and the trip buckle 5 acts to drive the fault indication piece 6 to synchronously act, so that a fault indication function is realized.

In the circuit breaker with the fault indication, the fault indication piece 6 displays the fault indication piece only when the fault such as short circuit or overload occurs and the tripping is disconnected, so that the fault indication device is beneficial to an operator to judge the switching-off reason of the circuit breaker and discharge the fault as soon as possible.

In addition, a multi-pole linkage rod 8 is further arranged between the jump buckle 5 and the lock catch 4, the multi-pole linkage rod 8 is hinged with the shell 1, and a linkage portion 53 correspondingly matched with the multi-pole linkage rod 8 is arranged on the jump buckle 5.

The multi-pole linkage rod 8 is provided with linkage holes along the hinged center, mutual linkage action is realized when a plurality of circuit breakers are subjected to multi-pole splicing, when one group of circuit breakers are tripped, the jump buckles 5 are tripped to drive the corresponding multi-pole linkage rods 8 to act, all multi-pole linkage rods are driven to act synchronously, and the multi-pole linkage rods push the latches to realize unlocking and tripping.

In addition, the part of the lock catch 4 contacting with the jump buckle 5 is provided with a contact piece 9 with a smooth surface, the contact piece 9 is made of a stainless steel sheet and is connected with the lock catch 4 in a welding mode, friction when the jump buckle 5 contacts with the lock catch 4 is reduced, tripping action is more reliable, meanwhile, the contact piece 9 extends into the clamping groove 41 and forms limiting fit with the end part of the jump buckle 5, the jump buckle 5 is limited, the problem that the end part of the jump buckle 5 stretches into too deep to cause incapability of tripping is avoided, tripping performance is further improved, and action is more stable and reliable.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. A circuit breaker with fault indication comprises a shell (1), a handle (2), a moving contact (3), a lock catch (4), a trip buckle (5) and a fault indication piece (6);

the method is characterized in that:

an indication window (11) is arranged on the shell (1);

the handle (2) is hinged on the shell (1), and the bottom of the handle is provided with a fan-shaped mounting groove (21);

the upper end of the moving contact (3) extends into the fan-shaped mounting groove (21) to form movable fit with the handle (2);

the lock catch (4) is hinged in the shell (1) and is provided with a clamping groove (41) which can form clamping matching with the jump buckle (5);

one end of the jump buckle (5) is hinged with the shell (1), the other end of the jump buckle can be correspondingly matched with the clamping groove (41), a tripping part (51) correspondingly matched with the moving contact (3) and a resetting part (52) correspondingly matched with the handle (2) are arranged on the jump buckle (5), and the jump buckle (5) is connected with the moving contact (3) through a tension spring (7);

one end of the fault indicator (6) is connected with the jump buckle (5), and the other end of the fault indicator extends to the indicator window (11).

2. The circuit breaker with fault indication of claim 1, wherein: the position that lies in indication window (11) below on casing (1) is equipped with spacing movable groove (12) that are greater than indication window (11), the tip bending type of fault indicator (6) becomes indicating part (61) to stretch into spacing movable groove (12), indicating part (61) have lie in indication window (11) below first position and with the second position that indicates window (11) stagger mutually.

3. A circuit breaker with fault indication as claimed in claim 1 or 2, wherein: the tip of trouble indicator (6) is equipped with elongated hole (62), reset portion (52) are the activity and set up the round axle on jumping buckle (5), jump buckle (5) and trouble indicator (6) constitute the linkage through reset portion (52) and elongated hole (62) and are connected.

4. The circuit breaker with fault indication of claim 1, wherein: a multi-pole linkage rod (8) is further arranged between the jump buckle (5) and the lock catch (4), the multi-pole linkage rod (8) is hinged to the shell (1), and a linkage portion (53) correspondingly matched with the multi-pole linkage rod (8) is arranged on the jump buckle (5).

5. The circuit breaker with fault indication of claim 1, wherein: and a contact piece (9) with a smooth surface is arranged on the partial surface of the lock catch (4) contacted with the jump buckle (5).

6. The circuit breaker with fault indication of claim 5, wherein: the contact piece (9) is a stainless steel sheet and is connected with the lock catch (4) in a welding mode.

7. The circuit breaker with fault indication of claim 5, wherein: the contact piece (9) extends into the clamping groove (41) and can be in limit fit with the end part of the jump buckle (5).