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公开(公告)号：US20180097352A1
公开(公告)日：2018-04-05
申请号：US15615340
申请日：2017-06-06
CPC分类号： H02H5/041 , H01C1/144 , H01C7/02 , H01C7/12 , H01C7/13 , H01H85/0047 , H01H85/0241 , H01H85/046 , H01H2085/0283 , H01H2207/008 , H01H2231/002 , H02H3/05 , H02H3/085 , H02H3/20 , H02H7/0852
摘要： A protection device comprises a first planar substrate, a second planar substrate, a heating element, a fusible element and an absorbent element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The heating element is disposed on the first surface, and the fusible element is disposed above the heating element. The absorbent element is disposed on the second surface and above the fusible element. When over-current or over-temperature occurs, the heating element heats up to melt and blow the fusible element and the absorbent element absorbs melted metal of the fusible element.
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公开(公告)号：US20150340181A1
公开(公告)日：2015-11-26
申请号：US14613981
申请日：2015-02-04
IPC分类号： H01H37/76
CPC分类号： H01H37/761 , H01H37/70 , H01H2037/046 , H01H2037/762 , H01H2037/763
摘要： A reflowable thermal fuse comprises a base, a housing, an elastic conductive element, a sensor and a restraining element. The base comprises first and second bonding pads and combines with the housing to form an internal accommodating space in which the elastic conductive element has first and second ends connecting to the first and second bonding pads, respectively. The elastic conductive element is operable to exert a resilient force which is able to sever the connection between the second end and the second bonding pad. The sensor connects to the second end and the second bonding pad to form electrical connection. The restraining element comprises a pressing member going through an opening of the housing and pressing the second end to resist the resilient force during reflow. After reflow, the restraining element is removed and thereby the reflowable thermal fuse is in an activation condition.
摘要翻译： 可回流热熔丝包括基座，外壳，弹性导电元件，传感器和约束元件。 基座包括第一和第二接合焊盘并与壳体组合以形成内部容纳空间，弹性导电元件分别具有连接到第一和第二接合焊盘的第一和第二端。 弹性导电元件可操作以施加能够切断第二端和第二接合焊盘之间的连接的弹性力。 传感器连接到第二端和第二接合焊盘以形成电连接。 约束元件包括穿过壳体的开口的按压构件，并且在回流期间按压第二端以抵抗弹性力。 在回流之后，去除限制元件，从而可回流的热熔丝处于激活状态。
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公开(公告)号：US20170338645A1
公开(公告)日：2017-11-23
申请号：US15285807
申请日：2016-10-05
IPC分类号： H02H3/24 , H02H5/04 , H01H85/02 , H01H85/046
CPC分类号： H02H3/24 , H01H85/0047 , H01H85/0241 , H01H85/046 , H01H2085/0283 , H01H2207/008 , H01H2231/002 , H02H3/05 , H02H3/08 , H02H3/20 , H02H5/04
摘要： A protection device comprises a first substrate, a second substrate, a fusible element and a heating element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The fusible element is disposed on the first surface of the first substrate, and the heating element is disposed on the second surface of the second substrate and is disposed above the fusible element. When over-voltage or over-temperature occurs, the heating element heats up to blow the fusible element and thereby providing over-voltage and over-temperature protection.
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公开(公告)号：US20160079638A1
公开(公告)日：2016-03-17
申请号：US14754246
申请日：2015-06-29
IPC分类号： H01M10/637
CPC分类号： H01M10/637 , H01M10/486 , H01M2200/106 , H01M2220/30
摘要： A secondary battery supplying electrical power to a load comprises a battery unit, at least one PTC temperature sensing device and a load switch. The battery unit is encompassed by a battery shell. The PTC temperature sensing device is disposed on a primary surface of the battery shell to effectively sense a temperature of the battery unit. The load switch connects to the battery unit and a load and determines whether the battery unit and the load switch are in electrical connection or in an open circuit state upon resistance variation of the PTC temperature sensing device. When the resistance of the PTC temperature sensing device increases by a threshold times within a specific temperature variation or time period, the load switch receives a control signal and accordingly switches to an open circuit state.
摘要翻译： 向负载提供电力的二次电池包括电池单元，至少一个PTC温度感测装置和负载开关。 电池单元被电池壳包围。 PTC温度感测装置设置在电池壳的主表面上以有效地感测电池单元的温度。 负载开关连接到电池单元和负载，并确定电池单元和负载开关是否在PTC温度感测装置的电阻变化时处于电气连接或处于开路状态。 当PTC温度检测装置的电阻在特定温度变化或时间段内增加阈值时间时，负载开关接收控制信号并相应地切换到开路状态。
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公开(公告)号：US20190122847A1
公开(公告)日：2019-04-25
申请号：US15924841
申请日：2018-03-19
摘要： A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.
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公开(公告)号：US20180336980A1
公开(公告)日：2018-11-22
申请号：US15827873
申请日：2017-11-30
发明人： David Shau Chew WANG , Tsungmin SU
摘要： A surface-mountable over-current protection device comprises at least one chip, a first lead and a second lead. The chip comprises a PTC material layer and two metal electrode layers disposed on upper and lower surfaces of the PTC material layer. The first lead is bent into multiple portions comprising a first electrode connecting portion connecting to one of the two metal electrode layers of the at least one chip and a first soldering portion for surface-mounting. The second lead is bent into multiple portions comprising a second electrode connecting portion connecting to another one of the two electrode layers of the at least one chip and a second soldering portion for surface-mounting. The PTC material layer comprises crystalline polymer and conductive filler dispersed therein, and the conductive filler has a resistivity less than 500 μΩ·cm. The surface-mountable over-current protection device can withstand a cycle life test of 300 cycles at 20V/40 A without blowout.
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公开(公告)号：US20170125954A1
公开(公告)日：2017-05-04
申请号：US15278399
申请日：2016-09-28
IPC分类号： H01R13/68 , H01R13/717 , H01R13/66
摘要： A connector comprises a terminal and a layered circuit substrate. The layered circuit substrate connects to an end of the terminal, and comprises a PTC material layer, a first electrode layer forming an upper layer of the layered circuit substrate, and a second electrode layer forming a lower surface of the layered circuit substrate. The PTC material layer is disposed between the first and second electrode layers. The first and second electrode layers comprise first and second electrode pads which connect to a power supply, and the PTC material layer electrically connects to the first and second electrode pads to form an electrically conductive path in which the PTC material layer serves as a PTC resistor in series connection between the first and second electrode pads. When an over-current or over-temperature event occurs in the electrically conductive path, the PTC resistor will trip to a high resistance state.
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公开(公告)号：US20170018339A1
公开(公告)日：2017-01-19
申请号：US15156813
申请日：2016-05-17
IPC分类号： H01C7/02
摘要： An over-current protection device comprises a PTC device and a heating element operable to heat the PTC device. The PTC device contains crystalline polymer and metal or ceramic conductive filler dispersed therein. The PTC device has a resistivity less than 0.1 Ω·cm. The over-current protection device has the relation: It (heating)
摘要翻译： 过电流保护装置包括PTC装置和可操作以加热PTC装置的加热元件。 PTC装置包含分散在其中的结晶聚合物和金属或陶瓷导电填料。 PTC器件的电阻率小于0.1Ω·cm。 过电流保护装置具有以下关系：（加热）
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公开(公告)号：US20200312600A1
公开(公告)日：2020-10-01
申请号：US16593312
申请日：2019-10-04
IPC分类号： H01H85/175
摘要： A protection device comprises a substrate, a fusible element, a flux and an insulating cover. The fusible element is disposed on the substrate and connects to a power line of an apparatus to be protected. The flux is disposed on the fusible element. The insulating cover is secured on the substrate to form a room for receiving the fusible element. The insulating cover has a bottom surface facing the substrate, and a plurality of protrusions are formed and distributed on the bottom surface to hold the flux in place.
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公开(公告)号：US20190157031A1
公开(公告)日：2019-05-23
申请号：US15819945
申请日：2017-11-21
摘要： A protection device comprises a substrate, a fusible element and a heating element. The substrate has a surface provided with a first electrode and a second electrode. The fusible element comprises a first metal layer and a second metal layer disposed on the first metal layer. The melting temperature of the second metal layer is higher than that of the first metal layer. The fusible element connects to the first and second electrodes through solder. The solder has a melting temperature lower than that of the first metal layer. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.
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