一种预付费断路器
By simplifying the structure of the prepaid circuit breaker and adopting welded connections and concentric through-hole design, the problem of poor contact caused by numerous parts was solved, achieving low-cost and high-reliability power extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANYU GRP ZHEJIANG HIGH TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing prepaid circuit breakers have complex structures, many parts, and frequent contact problems, resulting in poor power supply reliability.
The structure is simplified by welding the power supply wire to the bimetallic strip, connecting plate and arc-starting plate, and the power supply wire is fixed by concentrically set through holes in the outer shell, which reduces the number of parts and improves connection stability.
It achieves a simple structure, low processing cost, and high power supply reliability, avoids poor contact problems, and improves tensile strength and welding quality.
Smart Images
Figure CN224519839U_ABST
Abstract
Claims
1. A prepayment circuit breaker comprising an L-pole unit and an N-pole unit, which N-pole unit is provided with a prepayment line board (1) and a power take-off line (2) connecting the prepayment line board (1) and passing through the housing, characterized in that: The L-pole unit is provided with a bimetallic strip (3), a connecting piece (4) and an arc-starting plate (5). The lower ends of the bimetallic strip (3), the connecting piece (4) and the arc-starting plate (5) are tightly attached together and fixedly connected to the take-up wire (2).
2. The prepay circuit breaker of claim 1, wherein: The wire (2) is welded to the bimetallic strip (3), the connecting piece (4), and the arc-starting plate (5).
3. The prepay circuit breaker of claim 1, wherein: The wire (2) is located between the bimetallic strip (3) and the connecting piece (4) or between the bimetallic strip (3) and the arc-starting plate (5).
4. The prepay circuit breaker of claim 1, wherein: Both the L-pole unit and the N-pole unit are provided with a housing (6), and the housing (6) is provided with a through hole (7) for the wire (2) to pass through, and the through holes (7) on the two housings (6) are concentrically arranged.
5. The prepay circuit breaker of claim 4, wherein: The through hole (7) is located directly above the fixed connection position of the wire (2).
6. The prepay circuit breaker of claim 1, wherein: The outer casing (6) of the N-pole unit is provided with a first baffle (8) for positioning the take-off wire (2).
7. The prepay circuit breaker of claim 1, wherein: The outer casing (6) of the N-pole unit is also provided with a second baffle (9) for positioning the prepaid circuit board (1).