To provide: a protection element that has a smaller size as compared to a 3-terminal contact relay, and can carry a large current without conduction failure due to dirt on a contact point like the 3-terminal contact relay; and a protection circuit that can block a current path to be blocked with a small number of elements.SOLUTION: There is provided a protection element 10 comprising: a soluble conductor 1a; three or more electrodes 2a, 2b, and 2c electrically connected via the soluble conductor 1a, and a heating element that heats and melts the soluble conductor 1a. There is also provided a protection circuit.SELECTED DRAWING: Figure 1
【課題】3端子有接点リレーと比較して小型で大電流を流すことができ、しかも3端子有接点リレーのように接点の汚れによる導通不良が生じることはなく、少ない素子数で遮断すべき電流経路を遮断できる保護素子および保護回路を提供する。【解決手段】可溶導体1aと、可溶導体1aを介して電気的に接続された3つ以上の電極2a、2b、2cと、可溶導体1aを加熱して溶断させる発熱体とを有する保護素子10および保護回路とする。【選択図】図1
PROTECTION ELEMENT AND PROTECTION CIRCUIT
保護素子および保護回路
2021-05-06
Patent
Electronic Resource
Japanese
Interface protection circuit, protection system, vehicle and protection method
European Patent Office | 2021
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