Power control device
The power control device addresses reactor-induced leakage flux issues by using a core structure with varying permeabilities to reduce flux impact on electrical components, enhancing component performance.
JP7882189B2Active Publication Date: 2026-06-30DENSO CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DENSO CORP
- Filing Date
- 2023-08-21
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Reactor-induced leakage flux affects the functionality of nearby electrical components, particularly current sensors, leading to noise and performance degradation.
Method used
A power control device with a reactor element featuring a core structure having two cores with different permeabilities, where the second core with higher permeability is positioned closer to electrical components, reducing leakage flux impact.
Benefits of technology
The arrangement suppresses the adverse effects of leakage flux on electrical components, minimizing noise and performance degradation.
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Abstract
To provide a power control device suppressing adverse effects due to flux leakage of a reactor.SOLUTION: A power control device 2 has a reactor unit 7 and a sensor unit 9. The reactor unit 7 and the sensor unit 9 are arranged adjacently in X direction. A reactor element 40 has a core 45 and a coil 46. The sensor unit 9 has a current measuring part 30. A shortest distance between a first core 41 and the current measuring part 30 is a distance D1. A shortest distance between a second core 42 and the current measuring part 30 is a distance D2. Under an adjacent relation, the distance D2 between the second core 42 whose permeability is not minimum and the current measuring part 30 is shorter than the distance D1 between the first core 41 also called another core and the current measuring part 30. By satisfying the distance relation, an influence to the current measuring part 30 from the first core 41 is suppressed.SELECTED DRAWING: Figure 4
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