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公开(公告)号:US09923362B2
公开(公告)日:2018-03-20
申请号:US14369134
申请日:2012-12-17
CPC分类号: H02H3/085 , H01C7/02 , H01H85/0241 , H01H2085/0258 , H02H5/047
摘要: The present invention provides a protection device which includes a PTC component and a first non-resettable contact component which is connected electrically in parallel to the PTC component. A second non-resettable contact component is connected electrically in series to the PTC component, and when the PTC component is tripped by a current which is diverted by opening the contact of the first non-resettable contact component, the contact of the second non-resettable contact component opens due to heat which is generated by the PTC component.
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公开(公告)号:US09831056B2
公开(公告)日:2017-11-28
申请号:US14353263
申请日:2012-10-19
CPC分类号: H01H83/20 , H01C7/02 , H01C7/027 , H01H1/26 , H01H37/043 , H01H37/54 , H01H37/5436 , H01H69/02 , H01H71/025 , H01H2071/0242 , Y10T29/49105
摘要: A protection device comprises a resin base, PTC component, bimetal component, arm and upper plate which are housed in a resin housing wherein the base includes a terminal integrated with the base by insert molding. A resin cover is formed by insert molding to cover the PTC component, bimetal component, arm and upper plate which are superposed in this order over the terminal within a space in the base. The space in the resin base is substantially closed by the upper plate, the base and the cover are integrally bonded to define the resin housing, the terminal and the arm are electrically connected in series in a normal state, and in an abnormal state where the bimetal component is activated, the terminal and the arm are electrically cut off, while the terminal, PTC component, bimetal component, and arm are electrically connected in series in this order.
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