CN-121983473-A - Circuit breaker

CN121983473ACN 121983473 ACN121983473 ACN 121983473ACN-121983473-A

Abstract

The invention discloses a circuit breaker which comprises a shell, a switching device and conductive contacts arranged in the shell, wherein the shell is provided with an input port and an output port which are arranged at the same side at intervals, two slots are arranged at the input port and the output port, a first connecting elastic piece is arranged in at least one slot at the input port, a second connecting elastic piece is arranged in at least one slot at the output port, the switching device comprises a driving mechanism, a hinged transmission mechanism and a triggering elastic piece, the triggering elastic piece is connected with the output end of the hinged transmission mechanism, and the driving mechanism is used for driving the hinged transmission mechanism to drive the triggering elastic piece to contact with or disconnect from the conductive contacts, so that the first connecting elastic piece and the second connecting elastic piece are correspondingly conducted or disconnected one by one. The invention realizes quick plug through the connecting spring plate, and the input/output port is connected with the panel at the same side, thereby not only simplifying the structure of the breaker, but also omitting the step of wiring operation of the breaker in the traditional power distribution operation.

Inventors

WANG GUIGUANG
SU YAN
HE BIAO
XU ZHENGGANG

Assignees

王桂光
苏彦
何标
许正罡

Dates

Publication Date: 20260505
Application Date: 20230815

Claims (10)

1. A circuit breaker, the circuit breaker comprising: The shell is provided with an input port and an output port which are arranged at the same side at intervals, two slots are arranged at the input port and the output port, a first connecting elastic sheet is arranged in at least one slot at the input port, and a second connecting elastic sheet is arranged in at least one slot at the output port; A conductive contact disposed within the housing; The switch device comprises a driving mechanism, a hinged transmission mechanism and a triggering spring piece, wherein the triggering spring piece is connected with the output end of the hinged transmission mechanism, and the driving mechanism is used for driving the hinged transmission mechanism to drive the triggering spring piece to be in contact with or disconnected from the conductive contact, so that the first connecting spring piece and the second connecting spring piece are correspondingly connected or disconnected one by one.
2. The circuit breaker of claim 1, wherein the hinge transmission mechanism comprises a first hinge assembly, a transmission rod and a second hinge assembly which are hinged in sequence, the trigger spring is connected to one end of the second hinge assembly far away from the first hinge assembly, and the driving mechanism drives the first hinge assembly or the second hinge assembly to rotate so as to drive the trigger spring to contact with or break from the conductive contact.
3. The circuit breaker of claim 2, wherein the first hinge assembly comprises a first hinge rod comprising a first connecting section and a second connecting section connected and arranged at an included angle, wherein the junction of the first connecting section and the second connecting section is hinged with the housing, and the end of the second connecting section away from the first connecting section is hinged with the transmission rod.
4. The circuit breaker of claim 3, wherein the drive mechanism comprises a mechanical switch assembly comprising a lever and a link, the lever, the link and the first link being in turn hingedly connected, and the lever being rotatably connected to the housing, the lever further having an operating handle exposed to the housing.
5. The circuit breaker of claim 3, wherein the drive mechanism comprises an electronic switch assembly comprising a first pushrod and a drive module for driving the first pushrod to move in a first direction to push the first hinge assembly and bring the trigger spring into contact with the conductive contact.
6. The circuit breaker of claim 5, wherein the switching device further comprises a stop block for limiting the drive rod.
7. The circuit breaker of claim 6, wherein the first hinge assembly comprises a deflector rod and a second hinge rod, two ends of the second hinge rod are respectively hinged with a trigger spring piece of the transmission rod, the deflector rod is hinged with the second hinge rod, a limiting notch is formed in the deflector rod, when the trigger spring piece is in contact with the conductive contact, the end part of the transmission rod is clamped into the limiting notch, and the stop block abuts against the end part of the transmission rod.
8. The circuit breaker of claim 7, wherein the switching device further comprises a resilient member connected between the trigger spring and the housing; The driving module is also used for driving the first push rod to move along a first direction so as to push the stop block to be separated from the deflector rod, so that the trigger elastic sheet is separated from the conductive contact under the action of the elastic piece.
9. The circuit breaker of any of claims 2 to 8, further comprising an over-current protector comprising a drive coil and a second push rod, the drive coil energized to drive the second push rod to move in a first direction to push the second hinge assembly and to drive the trigger spring out of the conductive contact.
10. The circuit breaker according to any one of claims 1 to 8, characterized in that it further comprises an arc extinguishing device connected to said input port or said output port, and/or, The shell is provided with a mounting groove, the mounting groove is positioned between the input port and the output port, a weak current plug-in component is arranged in the mounting groove, and a plurality of connecting contacts are arranged on the weak current plug-in component.

Description

Circuit breaker Technical Field The invention relates to the technical field of piezoelectric devices, in particular to a circuit breaker. Background In the process of electricity generation, transportation and use, power distribution is an extremely important link, a power distribution system comprises a transformer and various high-voltage and low-voltage electrical equipment, and a low-voltage circuit breaker is an electrical appliance with wide application range. The circuit breaker can realize operations such as cutting off fault circuits in the power grid according to the current and voltage signals in the power grid system, so that the normal operation of each circuit in the power grid is ensured, and the normal electricity consumption of users is met. When the circuit breaker is used, the circuit breaker is usually arranged in a shell for power distribution, wiring operation needs to be carried out on the circuit breaker according to different use scenes, and a wiring port needs to be arranged for adapting to wiring requirements, so that the structure of the existing circuit breaker is complex. Disclosure of Invention The invention mainly aims to provide a circuit breaker, and aims to solve the problems that the existing circuit breaker needs to be subjected to wiring operation and is complex in structure under different application scenes. In order to achieve the above purpose, the invention provides a circuit breaker, which comprises a shell, a switch device and conductive contacts arranged in the shell, wherein the shell is provided with an input port and an output port which are arranged at the same side at intervals, two slots are arranged at the input port and the output port, a first connecting elastic piece is arranged in at least one slot at the input port, a second connecting elastic piece is arranged in at least one slot at the output port, the switch device comprises a driving mechanism, a hinged transmission mechanism and a triggering elastic piece, the triggering elastic piece is connected with the output end of the hinged transmission mechanism, and the driving mechanism is used for driving the hinged transmission mechanism to drive the triggering elastic piece to be in contact with or disconnected from the conductive contacts, so that the first connecting elastic piece and the second connecting elastic piece are correspondingly conducted or disconnected one by one. In an embodiment, the hinge transmission mechanism comprises a first hinge assembly, a transmission rod and a second hinge assembly which are hinged in sequence, the trigger spring is connected to one end, far away from the first hinge assembly, of the second hinge assembly, and the driving mechanism drives the first hinge assembly or the second hinge assembly to rotate so as to drive the trigger spring to contact with or disconnect from the conductive contact. In an embodiment, the first hinge assembly comprises a first hinge rod, the first hinge rod comprises a first connecting section and a second connecting section which are connected and are arranged at an included angle, the joint of the first connecting section and the second connecting section is hinged with the shell, and one end, away from the first connecting section, of the second connecting section is hinged with the transmission rod. In an embodiment, the driving mechanism comprises a mechanical switch assembly, the mechanical switch assembly comprises a control rod and a connecting rod, the control rod, the connecting rod and the first connecting section are sequentially hinged, the control rod is rotationally connected with the shell, and the control rod is further provided with an operating handle exposed out of the shell. In an embodiment, the driving mechanism includes an electronic switch assembly, the electronic switch assembly includes a first push rod and a driving module, and the driving module is configured to drive the first push rod to move along a first direction so as to push the first hinge assembly, and drive the trigger spring to contact with the conductive contact. In an embodiment, the switching device further comprises a stop block for limiting the transmission rod. In an embodiment, the first hinge assembly comprises a deflector rod and a second hinge rod, two ends of the second hinge rod are respectively hinged with a trigger spring plate of the transmission rod, the deflector rod is hinged with the second hinge rod, a limiting notch is formed in the deflector rod, when the trigger spring plate is in contact with the conductive contact, the end part of the transmission rod is clamped into the limiting notch, and the stop block abuts against the end part of the transmission rod. In an embodiment, the switch device further comprises an elastic piece, wherein the elastic piece is connected between the trigger elastic piece and the shell, and the driving module is further used for driving the first push rod to move along a first direction s