A switching power supply

By using partitioned heat sinks to centrally arrange key components and rationally arranging filter and rectifier components in the switching power supply, the problems of component temperature rise and electromagnetic interference are solved, the heat dissipation efficiency and electromagnetic compatibility of the power supply are improved, and the stability and signal integrity of the power supply are ensured.

CN224343641UActive Publication Date: 2026-06-09SHENZHEN HONOR ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HONOR ELECTRONICS
Filing Date
2025-07-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing switching power supplies suffer from excessive component temperature rise and electromagnetic interference (EMI) issues in PCB layout, affecting power supply efficiency and stability.

Method used

The installation area is separated by first and second heat sinks, and the power factor correction devices and filter capacitors are centrally located. The filter and rectifier components are set up independently and heat sinks are used for targeted heat dissipation. The filter capacitors and rectifier components are arranged in a reasonable manner to reduce electromagnetic interference.

Benefits of technology

It improves the heat dissipation efficiency and electromagnetic compatibility of switching power supplies, reduces device temperature, reduces electromagnetic interference, ensures power supply stability and signal integrity, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224343641U_ABST
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Abstract

The application relates to a switching power supply, which comprises a circuit board and a first heat dissipation member, a second heat dissipation member, a power factor correction device, a filter capacitor assembly and a filter rectifier assembly arranged on the circuit board, the first heat dissipation member and the second heat dissipation member are arranged in a first direction to separate a mounting area, the first heat dissipation member and the second heat dissipation member are used for heat dissipation and shielding of electromagnetic interference signals, the power factor correction device and the filter capacitor assembly are arranged in the mounting area, and the filter rectifier device is arranged on the side of the second heat dissipation member away from the first heat dissipation member. The switching power supply provided by the application separates the mounting area by the first heat dissipation member and the second heat dissipation member, so that the mounting area is relatively independent of the space outside the two heat dissipation members, the power factor correction device and the filter capacitor assembly are arranged in the mounting area in a spaced mode, the filter rectifier device is arranged in the space outside the mounting area, heat can be concentrated and managed, heat dissipation is optimized, and electromagnetic interference can be reduced.
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