A mandrel for capacitors

CN224417648UActive Publication Date: 2026-06-26ANHUI SHUANGJU ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI SHUANGJU ELECTRIC CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The lack of a dedicated wiring design for existing capacitor cores results in messy internal wiring, affecting assembly efficiency and performance stability, and poses a safety hazard of insulation damage caused by wire compression or friction.

Method used

Design a mandrel body with a hollow cylinder, with wire routing grooves evenly opened along the axial direction on the outer side wall, annular protrusions and wire passing holes at both ends, and reinforcing ribs on the inner side wall. It is integrally molded from insulating plastic material, providing a dedicated wiring channel and enhancing the strength of the mandrel.

Benefits of technology

This achieves a neat and orderly circuit layout, protects the insulation layer, improves assembly efficiency and capacitor performance stability, avoids circuit scratches and insulation layer damage, and enhances the overall stability of the spindle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224417648U_ABST
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Abstract

The utility model provides a kind of mandrel for capacitor, it is related to capacitor technical field, including mandrel main part, the mandrel main part is hollow cylindrical structure, the outside wall of mandrel main part is evenly provided with wiring slot along the axial direction, wiring slot is provided on the outside wall of mandrel main part, special wiring passage is provided for capacitor internal circuit, make circuit layout more neat and orderly, the bottom of wiring slot is arc structure, two side walls are provided with guide surface, can effectively avoid circuit to be scratched in wiring process, protect circuit insulation layer, annular protrusion on the both ends of mandrel main part is provided with wire hole, and wire hole is connected with wiring slot, so that circuit can be smoothly from mandrel one end through wiring slot and extend to the other end, further optimize the wiring path, the reinforcing rib that is set on the inside wall of mandrel main part, under the condition that mandrel main part weight is not increased, improve the overall strength and rigidity of mandrel, guarantee the stability of mandrel structure in the use process of capacitor.
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