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88 条记录 (耗时 0.022 秒)

    Power line with safety device
    53.
    发明申请
    Power line with safety device 有权
    带安全装置的电源线

    公开(公告)号：US20030002235A1

    公开(公告)日：2003-01-02

    申请号：US10179134

    申请日：2002-06-25

    申请人： UCHIYA THERMOSTAT CO. LTD.

    发明人： Hideaki Takeda

    IPC分类号： H02H007/00

    CPC分类号： H02H5/043 ,  H02H3/334

    摘要： A less expensive power cord with a safety device detects the damage of the power lines in a cord at an earlier stage, shuts off the power, and guarantees the safety of an electric appliance and its environment. The power cord has two power lines and a detection line provided between them, and the sheath portion between the detection line and the power line is thinner than the insulating sheath material of the cord contact portion. When the power line becomes half-broken and damaged by the fatigue with the passage of time due to bendings and pulls, the broken ends of the thin lines of the power line are untwisted and contact the thin sheath portion of the detection line, a current flows through the detection line, a current difference occurs in the power line, the power shutdown device detects the difference, releases a latch, and opens a constant close interlocking switch, thereby shutting off the power.

    摘要翻译： 具有安全装置的较便宜的电源线在较早的阶段检测到电源线的损坏，切断电源，并保证电器及其环境的安全。 电源线具有两根电源线和设置在它们之间的检测线，检测线和电力线之间的护套部分比电线接触部分的绝缘护套材料薄。 当电力线由于弯曲和拉动而随着时间的流逝而变得半断裂并且被疲劳损坏时，电力线的细线断裂端解开并接触检测线的薄护套部分，电流 流过检测线时，在电力线上发生电流差，电源关闭装置检测到差异，释放闩锁，打开恒定的紧密联锁开关，从而切断电源。

    Electrical safety device with conductive polymer sensor
    54.
    发明授权
    Electrical safety device with conductive polymer sensor 失效
    带导电聚合物传感器的电气安全装置

    公开(公告)号：US5841617A

    公开(公告)日：1998-11-24

    申请号：US826780

    申请日：1997-04-07

    申请人： Kenneth S. Watkins, Jr. ,  Shelby J. Morris, Jr.

    发明人： Kenneth S. Watkins, Jr. ,  Shelby J. Morris, Jr.

    IPC分类号： H02H5/04 ,  H02H7/22

    CPC分类号： H02H5/043 ,  H02H7/228

    摘要： An electrical safety device comprises a sensor strip disposed in the insulation of an electrical power cord or other electrical apparatus. The sensor strip is made of a conductive polymer with a positive temperature coefficient of resistivity which increases with temperature. The sensor strip forms a series connected loop connected to an impedance measuring circuit. A relay interrupts current to the conductors of the cord when the impedance of the sensor strip increases due to an overtemperature condition. The sensor strip is positioned between the conductors of the cord and the outside surface of the cord. The position of the sensor strip allows the strip to act as a mechanical damage sensor, opening the series connected loop before an energized conductor is exposed.

    摘要翻译： 电气安全装置包括设置在电力线或其他电气设备的绝缘体中的传感器条。 传感器带由具有正温度系数随温度升高的导电聚合物制成。 传感器条形成连接到阻抗测量电路的串联连接的环路。 当传感器条的阻抗由于过热条件而增加时，继电器会中断电流到电线的导线。 传感器带位于电线的导体和电线的外表面之间。 传感器条的位置允许带材作为机械损伤传感器，在通电导体暴露之前打开串联连接的环路。

    Flexible self-regulating heating pad combination and associated method
    55.
    发明授权
    Flexible self-regulating heating pad combination and associated method 失效
    柔性自调节加热垫组合及相关方法

    公开(公告)号：US5451747A

    公开(公告)日：1995-09-19

    申请号：US845222

    申请日：1992-03-03

    申请人： William M. Sullivan ,  William W. Irwin, Jr. ,  Charles W. Murin ,  James R. McNair ,  Clifford R. Stine

    发明人： William M. Sullivan ,  William W. Irwin, Jr. ,  Charles W. Murin ,  James R. McNair ,  Clifford R. Stine

    IPC分类号： A61F7/00 ,  G05D23/24 ,  H02H5/04 ,  H05B1/02 ,  H05B3/14 ,  H05B3/34 ,  H05B3/36

    CPC分类号： A61F7/007 ,  G05D23/2401 ,  H02H5/043 ,  H05B1/0225 ,  H05B3/146 ,  H05B3/36 ,  A61F2007/0074 ,  A61F2007/0086 ,  H05B2203/003 ,  H05B2203/011 ,  H05B2203/016 ,  H05B2203/017 ,  H05B2203/02 ,  H05B2203/035

    摘要： A flexible, electric heating pad having a self-limiting heating element is provided. The heating element includes a pair of relatively spaced conductors surrounded by a positive temperature coefficient (PTC) material. A layer of electrically insulating material surrounds the PTC material. The PTC material includes a polyolefin resin having a relatively low flexural modulus. The heating element is disposed in a generally serpentine configuration within passages formed in the covering material of the heating pad. The passages are formed by joining together layers of covering material using ultrasonic welding or other suitable ways. The temperature of the heating element is controlled using controller circuit which utilizes a solid state timed interval control circuit. A safety circuit is provided for non-resettably disconnecting electrical power from the heating element if short or open circuit conditions occur therein. A temperature indicator and a variable automatic shutoff circuit are also provided with the controller circuit. A method of making the heating pad is also provided.

    摘要翻译： 提供了具有自限制加热元件的柔性电加热垫。 加热元件包括由正温度系数（PTC）材料围绕的一对相对间隔的导体。 一层电绝缘材料围绕PTC材料。 PTC材料包括具有相对较低弯曲模量的聚烯烃树脂。 加热元件在形成在加热垫的覆盖材料中的通道内以大致蛇形的形式设置。 通过使用超声波焊接或其它合适的方式将覆盖材料层接合在一起而形成通道。 使用利用固态定时间隔控制电路的控制器电路来控制加热元件的温度。 提供一种安全电路，用于如果在其中发生短路或开路状况，则不可重置地将电功率从加热元件断开。 控制器电路还配有温度指示器和可变自动关断电路。 还提供了制造加热垫的方法。

    Electrical heating apparatus protected against an overheating condition and a temperature sensitive electrical sensor for use therewith
    57.
    发明授权
    Electrical heating apparatus protected against an overheating condition and a temperature sensitive electrical sensor for use therewith 失效
    防止过热情况的电加热装置和与其一起使用的温度敏感的电传感器

    公开(公告)号：US4607154A

    公开(公告)日：1986-08-19

    申请号：US535981

    申请日：1983-09-26

    申请人： Edwin R. Mills

    发明人： Edwin R. Mills

    IPC分类号： H02H5/04 ,  H05B3/34 ,  H05B3/56 ,  H05B1/02

    CPC分类号： H05B3/342 ,  H02H5/043 ,  H05B3/56 ,  H05B2203/003 ,  H05B2203/017 ,  H05B2203/033

    摘要： An electrical heating apparatus protected against an overheating condition and a temperature sensitive electrical sensor for the use therewith are disclosed. The electrical heating apparatus includes an electrical heater for generating heat in proportion to the amount of electricity flowing through it, and it provides essentially all the heat for the apparatus. An electrical sensor is disposed in a thermally responsive relationship to the electrical heater. The electrical sensor includes a coextruded pair of spaced flexible plastic conductors and a coextruded flexible temperature sensitive electrical impedance material having predetermined temperature coefficient impedance characteristics along its entire length. The temperature sensitive material is in electrical contact with the flexible conductors and controls the flow of electricity between them. A control means associated with the electrical heater and the electrical sensor is responsive to a signal from the electrical sensor to control the electrical current flowing through the heater.

    摘要翻译： 公开了一种防止过热状况的电加热装置和用于其的温度敏感电传感器。 电加热装置包括电加热器，用于与流过其的电量成比例地产生热量，并且其为设备提供基本上所有的热量。 电传感器以与热加热器的热响应关系设置。 电传感器包括共挤出的一对分开的柔性塑料导体和共挤出的柔性温度敏感电阻抗材料，其沿着其整个长度具有预定的温度系数阻抗特性。 感温材料与柔性导体电接触并控制它们之间的电流。 与电加热器和电传感器相关联的控制装置响应于来自电传感器的信号来控制流过加热器的电流。

    Electrical heating apparatus protected against an overheating condition
    58.
    发明授权
    Electrical heating apparatus protected against an overheating condition 失效
    电加热装置防止过热状况

    公开(公告)号：US4577094A

    公开(公告)日：1986-03-18

    申请号：US539083

    申请日：1983-10-05

    申请人： Edwin R. Mills

    发明人： Edwin R. Mills

    IPC分类号： H02H5/04 ,  H05B3/34 ,  H05B3/56 ,  H05B1/02

    CPC分类号： H05B3/56 ,  H02H5/043 ,  H05B3/342 ,  H05B2203/003 ,  H05B2203/017 ,  H05B2203/033

    摘要： An electrical heating apparatus protected against an overheating condition is disclosed. It includes an electrical heater and an elongate heat sensor disposed in a thermally responsive relationship. The heat sensor consists of a single conductor having positive temperature coefficient electrical impedance characteristics continuously along its entire length. The electricity flowing through the electrical heater is controlled in response to a signal from the heat sensitive conductor.

    摘要翻译： 公开了一种防止过热状况的电加热装置。 它包括以热响应关系设置的电加热器和细长的热传感器。 热传感器由具有正温度系数电阻抗特性的单个导体沿其整个长度连续地组成。 响应于来自热敏导体的信号控制流过电加热器的电力。

    Heating circuit with overheat safety control feature
    59.
    发明授权
    Heating circuit with overheat safety control feature 失效
    加热电路具有过热安全控制功能

    公开(公告)号：US4491723A

    公开(公告)日：1985-01-01

    申请号：US465091

    申请日：1983-02-08

    申请人： Graham M. Cole

    发明人： Graham M. Cole

    IPC分类号： H02H5/04 ,  H05B1/02

    CPC分类号： H02H5/043

    摘要： A heating circuit for an electric blanket or the like comprises a heating conductor, a sensor conductor and separating means which separates the conductors and has an impedance that falls with increasing temperature and/or which will melt in the event of overheating to allow contact between the conductors. A thermal fuse and a first diode are connected in series with the heating conductor between AC supply input terminals, and a resistor is thermally coupled to the thermal fuse and electrically connected such that the resistor and the impedance of the separating means are connected in series between the input terminals. A drop in the impedance of the separating means due to overheating will cause the current through the resistor to increase, so heating the resistor to cause the thermal fuse to disconnect the circuit from the supply. The resistor is connected in series with the heating conductor and the first diode and a second diode bypasses the resistor during those half-cycles of the AC supply voltage during which the first diode conducts.

    摘要翻译： 用于电热毯等的加热电路包括加热导体，传感器导体和分离装置，其分离导体并具有随着温度升高而下降的阻抗和/或在过热情况下熔化以允许接触 导体 热熔丝和第一二极管与AC电源输入端之间的加热导体串联连接，并且电阻器热耦合到热熔丝并电连接，使得电阻器和分离装置的阻抗串联连接 输入端子。 由于过热导致的分离装置阻抗的下降将导致电流通过电阻增加，因此加热电阻使热熔丝断开电路与电源的连接。 在第一二极管导通的交流电源电压的这些半周期期间，电阻器与加热导体和第一二极管串联连接，而第二二极管旁路电阻器。