Engine control module circuit board and pressing structure thereof

By using a combination of FR-4 core boards and hydrocarbon core boards, along with a buffer design, in the engine control module circuit board, the problem of signal attenuation under high-frequency conditions was solved, achieving a balance between signal stability and structural strength.

CN224205313UActive Publication Date: 2026-05-05CAMELOT QINGYUAN HYTEC TECH INVESTMENT
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Patent Information

Application Number
CN202521109503.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-05-05
Estimated Expiration
2035-05-30

AI Technical Summary

Technical Problem

The existing automotive engine control module circuit board suffers severe signal attenuation in high-frequency environments, affecting signal processing capabilities and stability. The high dielectric loss of FR-4 material leads to unstable signal transmission.

Method used

The circuit board is manufactured by using a combination of FR-4 core board and hydrocarbon core board. By combining the rigidity and thermal performance of FR-4 with the low dielectric loss characteristics of hydrocarbon core board, a multi-layer circuit board structure is formed through alternating arrangement and buffer design.

Benefits of technology

In high-frequency environments, it reduces signal delay, improves data transmission speed, ensures signal processing capabilities and communication stability, and enhances the structural strength of the circuit board.

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Abstract

The utility model provides an engine control module circuit board and a lamination structure thereof, the lamination structure comprises a plurality of circuit boards to be laminated, each circuit board to be laminated comprises N-1 circuit board substrates and N steel plates, the N steel plates and the N-1 circuit board substrates are alternately arranged, each circuit board substrate comprises a hydrocarbon core plate, an FR-4 prepreg and an FR-4 core plate, and the hydrocarbon core plate, the FR-4 prepreg and the FR-4 core plate are alternately arranged. The hydrocarbon core plate is arranged on one surface of the FR-4 prepreg, and the FR-4 core plate is arranged on one surface, deviating from the FR-4 core plate, of the FR-4 prepreg. As the FR-4 core board has better rigidity and better thermal performance, and the hydrocarbon core board has the characteristic of low dielectric loss, can be suitable for a high-frequency environment, and can make up for the defects of the FR-4 core board, when the circuit board is manufactured by adopting a mode of mixing the FR-4 core board and the hydrocarbon core board, the problem of larger signal attenuation in the high-frequency environment can be solved, and the circuit board can be applied to the high-frequency environment. And the signal processing capability and the communication stability of the engine control module are ensured.
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