一种塑壳断路器用外接排夹持件、塑壳断路器
By designing an external busbar clamp for molded case circuit breakers, multi-phase external busbars are fixed into a whole, solving the problems of casing damage and phase-to-phase short circuits caused by mutual repulsion or attraction between conductors in high-voltage experiments, thus achieving casing protection and phase-to-phase insulation enhancement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RENMIN ELECTRICAL APP WORKS
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
During high-voltage testing, existing molded case circuit breakers are prone to damage to the casing and phase-to-phase short circuits due to the mutual repulsion or attraction between the conductor bars.
Design an external terminal block clamp for molded case circuit breakers. By fixing the multi-phase external terminals into a whole, the resultant force of electric repulsion or attraction is zero, and the creepage distance is increased to prevent damage to the casing and phase-to-phase short circuits.
It effectively counteracts the electric repulsion or attraction between multi-phase external terminals, prevents damage to the casing, increases creepage distance, and avoids phase-to-phase short circuits.
Smart Images
Figure CN224519824U_ABST
Abstract
Claims
1. An external bus bar holder for a molded case circuit breaker, characterized by, It includes the lower end (31) of the external row clamping member, the upper end (33) of the external row clamping member, and the phase spacer (35), wherein, The lower end (31) of the external clamping member is located on the base (4); The upper end (33) of the external connector clamp and the lower end (31) of the external connector clamp are fixedly engaged to form several parallel placement grooves (34) for nesting the external connector (32). One end of the external connector (32) passes through the placement groove (34) and enters the cover (2) and is connected to the inlet conductive bar or the outlet conductive bar. One end of the phase spacer (35) is provided with a notch (351), which is engaged between two adjacent mounting slots. The side of the phase spacer (35) above the notch (351) is also engaged with the cover (2).
2. The over-panel clamp for a molded case circuit breaker of claim 1, wherein, The upper end (33), the outer row (32), and the lower end (31) of the outer row clamping member are provided with through fastener holes (36), which are used for fasteners (37) to pass through and fix the upper end (33), the outer row (32), and the lower end (31) of the outer row clamping member.
3. The external connector clamp for a molded case circuit breaker according to claim 1, characterized in that, The top surface of the upper end (33) of the external connector clamping member is provided with a first groove (331), and the upper end (33) of the external connector clamping member and the lower end (31) of the external connector clamping member are provided with a second groove (332) that communicates with the first groove (331). The first groove (331) is used to engage with the top edge of the notch (351), and the second groove (332) is used to engage with the side edge of the notch (351).
4. The over-panel clamp for a molded case circuit breaker of claim 1, wherein, A first extension block (333) is provided at the bottom of the upper end (33) of the external row clamping member located on one and / or both sides of the mounting groove (34), and a third groove (311) is provided on the lower end (31) of the external row clamping member to engage with the first extension block (333).
5. The over-panel clamp for a molded case circuit breaker of claim 4, wherein, The third groove (311) is provided with a second extension block (312), and the bottom of the upper end (33) of the outer connecting clamping member where the first extension block (333) is located is provided with a fourth groove (334) that engages with the second extension block (312).
6. The over-panel clamp for a molded case circuit breaker of claim 5, wherein, The bottom of the lower end (31) of the external row clamping member located on one and / or both sides of the mounting groove (34) is provided with a third extension block (313) that engages with the base (4).
7. The over-panel clamp for a molded case circuit breaker of claim 6, wherein, The upper end (33) of the external connector and the lower end (31) of the external connector are respectively provided with a first protrusion (335) and a second protrusion (314). The first protrusion (335) and the second protrusion (314) overlap and align with one side of the phase spacer (35) located above the notch (351) and are engaged with the cover (2).
8. The over-panel clamp for a molded case circuit breaker of claim 7, wherein, The first protrusion (335), the second protrusion (314), and the phase spacer (35) located above the notch (351) have the same aligned cross-sectional shape.
9. The over-panel clamp for a molded case circuit breaker of claim 7, wherein, The second protrusion (314) is also integrated with the second extension block (312) and the third extension block (313).
10. A molded case circuit breaker characterized by, Includes the external connector clamp for molded case circuit breakers as described in any one of claims 1 to 9.