A pre-charge resistor assembly and servo

By arranging multiple resistor cores inside the ceramic shell and using silica sand resin filling and insulating coating protection, the problem of insufficient energy in existing pre-charge resistor components is solved, realizing a higher energy pre-charge resistor component and ensuring the safe charging of the server capacitor.

CN224536811UActive Publication Date: 2026-07-21SHIMENG ELECTRONIC (HUIZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIMENG ELECTRONIC (HUIZHOU) CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing pre-charge resistor components use a single resistor core, resulting in insufficient energy and an inability to effectively protect the server from the slow charging of the capacitor during the initial power-up phase, which may lead to capacitor breakdown.

Method used

Design a pre-charged resistor assembly that uses a U-shaped receiving groove inside a ceramic shell to arrange multiple resistor cores, which are electrically connected by terminals or welding, and filled with silica sand resin for insulation protection, with an additional insulating coating, to utilize space to increase energy and prevent short circuits.

Benefits of technology

By using a series arrangement of multiple resistor cores and insulation protection, the energy of the pre-charge resistor assembly is improved, short circuits are prevented, service life is extended, and the capacitor charging safety of the server is enhanced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224536811U_ABST
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Abstract

The application provides a pre-charging resistor assembly and a server. The pre-charging resistor assembly comprises a porcelain shell, a plurality of resistor cores, silica sand resin filling material and an insulating coating. The porcelain shell is provided with a U-shaped accommodating groove. The U-shaped accommodating groove is arranged in a U shape. The plurality of resistor cores are arranged in the porcelain shell and accommodated in the U-shaped accommodating groove. The plurality of resistor cores are arranged in series along the length direction of the U-shaped accommodating groove. The plurality of resistor cores are electrically connected through terminals or welding and arranged in series along the U-shaped track. The silica sand resin filling material fills each resistor core and is arranged at the outer circumferential side of the corresponding resistor core. The insulating coating is coated on the outer surface of the porcelain shell and insulates and protects the porcelain shell. The U-shaped accommodating groove is fully utilized, the porcelain shell accommodates the plurality of resistor cores, the plurality of resistor cores are compatible, the space is fully utilized, and the energy of the pre-charging resistor assembly is increased by arranging the plurality of resistor cores.
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