一种断路器

By optimizing the transmission structure of the circuit breaker and using the closing and opening buttons to directly drive the transmission components, efficient transmission and precise operation are achieved, solving the problems of low transmission efficiency and discontinuous operation, and improving the breaking capacity and reliability of the circuit breaker.

CN224519837UActive Publication Date: 2026-07-17SHANGHAI LIANGXIN ELECTRICAL CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LIANGXIN ELECTRICAL CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing circuit breakers suffer from problems such as low efficiency, discontinuous operation, and high operating resistance in their transmission structure design, which affect their rapid response capability and reliability. Furthermore, the opening and closing processes are not smooth, resulting in a decrease in breaking capacity.

Method used

The closing and opening buttons directly drive the first transmission component. Through the mechanical linkage design of the transmission link and the second transmission component, efficient transmission and precise operation control are achieved, ensuring that the contact mechanism operates quickly and smoothly, and adapting to products with different current specifications.

Benefits of technology

It improves the breaking capacity and reliability of circuit breakers, reduces operating force, enhances market adaptability and compatibility, and optimizes production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224519837U_ABST
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Abstract

本实用新型提供了一种断路器,涉及电气设备技术领域。断路器包括安装件、按钮组件、第一传动件、传动连杆、第二传动件以及触头机构。按钮组件包括合闸按钮和分闸按钮,合闸按钮和分闸按钮均设置于安装件。第一传动件可活动地设置于安装件,合闸按钮和分闸按钮均与第一传动件连接,用于带动第一传动件;传动连杆设置于安装件,传动连杆包括依次传动连接的第一连杆、锁扣件、第二连杆,第一连杆与第一传动件连接;第二传动件可活动地设置于安装件,并与第二连杆连接;触头机构与第二传动件连接。可见,本实用新型提供的断路器结构合理、传动高效且操作灵活,有效改善了分合闸性能,提升整体分断能力和运行安全性。
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Claims

1. A circuit breaker characterized by, include: Installation components; A button assembly (200) includes a closing button (210) and a closing button (220), both of which are disposed on the mounting component; The first transmission component (300) is movably disposed on the mounting component. The closing button (210) and the opening button (220) are both connected to the first transmission component (300) and are used to drive the first transmission component (300). A transmission link (400) is disposed on the mounting member. The transmission link (400) includes a first link (410), a locking member (420), and a second link (430) that are connected in sequence. The first link (410) is connected to the first transmission member (300). The second transmission member (500) is movably disposed on the mounting member and connected to the second connecting rod (430); A contact mechanism (600) is connected to the second transmission member (500); The closing button (210) is used to drive the first transmission member (300) to move, thereby driving the transmission link (400) and the second transmission member (500) to move, so as to drive the contact mechanism (600) to close; the opening button (220) is used to drive the first transmission member (300) to move in the opposite direction, thereby driving the transmission link (400) and the second transmission member (500) to move, so as to drive the contact mechanism (600) to open.

2. The circuit breaker of claim 1, wherein, The closing button (210) is provided with a first holding part (211), the opening button (220) is provided with a second holding part (221), the first transmission member (300) is provided with a third holding part (310) and a fourth holding part (320), the first holding part (211) is engaged with the third holding part (310), and the second holding part (221) is engaged with the fourth holding part (320).

3. The circuit breaker of claim 2, wherein, The first transmission member (300) is also provided with a rotating shaft (330), which is rotatably disposed on the mounting member, and the third holding part (310) and the fourth holding part (320) are located on both sides of the rotating shaft (330).

4. The circuit breaker of claim 2, wherein, The first retaining part (211) and the second retaining part (221) are through holes or groove structures, and the third retaining part (310) and the fourth retaining part (320) are retaining pins or protrusion structures; Alternatively, the first retaining part (211) and the second retaining part (221) may be a retaining shaft or a protrusion structure, and the third retaining part (310) and the fourth retaining part (320) may be a through hole or a groove structure.

5. The circuit breaker of claim 1, wherein, The circuit breaker also includes a tripping member (700), which is movably disposed on the mounting member. One end of the locking member (420) is connected to the second connecting rod (430), and the other end abuts against the tripping member (700). The tripping member (700) is used to disengage from the locking member (420) so as to release the transmission engagement of the first transmission member (300), the transmission connecting rod (400), and the contact mechanism (600).

6. The circuit breaker of claim 1, wherein, The circuit breaker further includes an elastic element (800). The second transmission element (500) is provided with a first connecting part (510), a second connecting part (520), and a third connecting part (530). The first connecting part (510) is rotatably disposed on the mounting member. The second connecting part (520) is connected to the second connecting rod (430). The third connecting part (530) is connected to the elastic element (800). The elastic element (800) is used to give the second transmission element (500) a tendency to drive the contact mechanism (600) to open.

7. The circuit breaker of claim 1, wherein, The circuit breaker also includes a pressure plate (900), which is movably disposed on the mounting member. The second transmission member (500), the pressure plate (900), and the contact mechanism (600) are sequentially connected in a transmission manner.

8. The circuit breaker of claim 7, wherein, The circuit breaker also includes a push plate (1000), one end of which is connected to the second transmission member (500), and the other end of which is connected to the pressure plate (900).

9. The circuit breaker of claim 7 or 8, wherein, The pressure plate (900) is provided with a rotating part (910), an abutting part (920), and a transmission part (930). The rotating part (910) is rotatably disposed on the mounting member. The abutting part (920) is connected to the contact mechanism (600) in a transmission manner. The transmission part (930) is used to connect with the first transmission member (300) or the push plate (1000). The rotating part (910) and the abutting part (920) are located on both sides of the pressure plate (900). The transmission part (930) is located between the rotating part (910) and the abutting part (920) and is close to the rotating part (910).

10. The circuit breaker of claim 9, wherein, The transmission part (930) is disposed close to the rotating part (910) to be compatible with high current specification housing products; Alternatively, the transmission part (930) may be disposed near the abutment part (920) to be compatible with low current specification housing products.