| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Device for protection against voltage surges with mobile electrode | US10532350 | 2003-10-02 | US07352552B2 | 2008-04-01 | Eric Domejean; Robert Diconne |
| A protection device against voltage surges, connected between an electric line and earth, comprises a first connecting electrode, a second connecting electrode and a mobile switching electrode for switching between an operating position, in contact with the first connecting electrode, and a switching position, close to the second connecting electrode. An electric dipole, comprising for example a variable resistor and/or a spark arrester, connects the mobile electrode to the second connecting electrode. The mobile electrode can be moved by a mechanism, an electromechanical relay and/or a magnetic circuit performing repulsion when the current intensity becomes very high. Separation of the electrodes produces an arc which limits the current flowing in the dipole then, by switching on the second connecting electrode, performs disconnection of the dipole from the circuit thus ensuring protection thereof. | ||||||
| 122 | CIRCUIT PROTECTION DEVICE WITH AUTOMATIC MONITORING OF OPERATION FAULT | US11836083 | 2007-08-08 | US20080024945A1 | 2008-01-31 | Shaohua GAO; Feng ZHAO |
| A circuit interrupter device having a circuit module that automatically monitor the operation of the device and contains a master control system that periodically sends out an impulse that simulates an electric shock signal, a monitoring system that has an interlocking magnifier and comparator, and a signaling system to indicate the normal or faulty operation of the device. | ||||||
| 123 | Circuit breaker integral temperature monitoring for advance detection of defective power conductor connections | US11811611 | 2007-06-11 | US20080013596A1 | 2008-01-17 | David J. Dunne; Robert A. Kennedy |
| A circuit breaker includes a breaker enclosure, a plurality of conductor connections, and a temperature sensor. The breaker enclosure contains internal components that include a trip unit. The plurality of conductor connections electrically couple the trip unit to a plurality of power conductors. The temperature sensor is located to sense heat radiated by the conductor connections and is positioned inside the enclosure. | ||||||
| 124 | Ground fault circuit interrupters providing end of the life test | US11362039 | 2006-02-27 | US07315227B2 | 2008-01-01 | Huadao Huang; Huayang Lu |
| This invention discloses a ground fault circuit interrupter capable of detecting its end of life, and is characterized by: a pair of flexible metal sheets connected to the power output end are added on the circuit board of the interrupter, and there is a pair of moving contacts on the metal sheets; there are two pairs of fixed contacts on the power output conductors; the two pairs of fixed contacts on the power output conductors respectively correspond to the moving contacts on the power input metal sheets and the moving contacts on flexible metal sheets, thus forming two groups and four pairs of switches. There is also a tripping apparatus on the circuit board, which can release/trip the interrupter, thus cutting off the power output of the interrupter. An end of life detection circuit has also been added to the circuit board. After the interrupter is energized, various components in the interrupter are automatically detected. If it is found that the interrupter has come to the end of its life, the reset button will be prevented from resetting, so that neither the load end of the interrupter nor the power output holes on the surface of the interrupter have any power output. This invention has powerful applications, with sound safety precautions, thus effectively ensuring the personal safety of the user as well as the safety of the appliances. | ||||||
| 125 | Ground fault circuit interrupter with reverse wiring and end-of-life protection | US11542515 | 2006-10-02 | US07307821B2 | 2007-12-11 | Ping Wang |
| A circuit interrupter comprises a pair of fixed contact strips, a pair of load contact strips, a pair of movable contact strips, a reset component, a movable component, and a trip component that contains a reset contact. Each of the fixed contact strips has a fixed contact. Each of the load contact strips has a load contact. Each of the movable contact strips has a fixed end and a movable end. The movable end of each movable contact strip is split into an inner sub-strip and an outer sub-strip. Each movable end has a first movable contact disposed on the inner sub-strip arranged for contacting one of the corresponding load contacts and a second movable contact disposed on the outer sub-strip arranged for contacting one of the corresponding fixed contacts. The movable component, disposed to sustain the movable ends of the movable contact strips, allow the inner sub-strips and the outer sub-strips to rest on different horizontal planes. The movable component is capable of either being latched with or released from the reset component to move between a first position, a second position, and a third position. | ||||||
| 126 | Circuit protection device with grounded neutral half cycle self test | US10768530 | 2004-01-30 | US07253629B1 | 2007-08-07 | Jeffrey C. Richards; David A. Finlay, Sr.; Bruce F. Macbeth |
| The present invention is directed to a circuit and method for self-testing a protection device for use in an AC power distribution system. The device is configured to be coupled between an AC power distribution system and at least one load. The method includes the step of introducing a simulated ground neutral fault during a first predetermined half cycle half cycle of the AC power. An attempt is made to detect the introduced simulated grounded neutral fault during the first predetermined half cycle half cycle. A fault condition is signaled if the introduced simulated grounded neutral fault is not detected within a predetermined period of time. | ||||||
| 127 | Intelligent life testing methods and apparatus for leakage current protection | US11588163 | 2006-10-26 | US20070146947A1 | 2007-06-28 | Feng Zhang; Hongliang Chen; Fu Wang; Wusheng Chen; Yulin Zhang; Huaiyin Song |
| An apparatus for testing the life of a leakage current protection device having a leakage current detection circuit and a trip mechanism having a switch device. In one embodiment, the apparatus a ground fault simulation unit, a fault detector of the leakage current detection circuit and the trip mechanism, and a life testing detection control unit having an MCU for controlling operation of the fault detector. In operation, a first signal (pulse signal) is sent to the gate of the switching device to generate a first voltage at the cathode of the switching device, a second signal is sent to the ground fault simulation unit to generate a simulated ground fault for the leakage current detection circuit to generate a second voltage at the gate of the switching device, and the first and second voltages are measured to determine whether a fault exists in the leakage current detection circuit and the trip mechanism. | ||||||
| 128 | Overvoltage protection devices including wafer of varistor material | US11301000 | 2005-12-15 | US20070139850A1 | 2007-06-21 | Sherif Kamel; Zafiris Politis; Konstantinos Samaras |
| An overvoltage protection device includes first and second electrically conductive electrode members, a varistor member formed of a varistor material and electrically connected with each of the first and second electrode members, and an electrically conductive, meltable member. The meltable member is responsive to heat in the device to melt and form a current flow path between the first and second electrode members through the meltable member. | ||||||
| 129 | Ground fault circuit interrupter with reverse wiring and end-of-life protection | US11542515 | 2006-10-02 | US20070132530A1 | 2007-06-14 | Ping Wang |
| A circuit interrupter comprises a pair of fixed contact strips, a pair of load contact strips, a pair of movable contact strips, a reset component, a movable component, and a trip component that contains a reset contact. Each of the fixed contact strips has a fixed contact. Each of the load contact strips has a load contact. Each of the movable contact strips has a fixed end and a movable end. The movable end of each movable contact strip is split into an inner sub-strip and an outer sub-strip. Each movable end has a first movable contact disposed on the inner sub-strip arranged for contacting one of the corresponding load contacts and a second movable contact disposed on the outer sub-strip arranged for contacting one of the corresponding fixed contacts. The movable component, disposed to sustain the movable ends of the movable contact strips, allow the inner sub-strips and the outer sub-strips to rest on different horizontal planes. The movable component is capable of either being latched with or released from the reset component to move between a first position where the first movable contacts are separated from the load contacts, and the second movable contacts are separated from the fixed contacts, and the movable contact strips are not electrically coupled to the reset contact, a second position where the first movable contacts are separated from the load contacts, and the second movable contacts are separated from the fixed contacts, and at least one of the movable contact strips is electrically coupled to the reset contact, and a third position where the first movable contacts make contact with the corresponding load contacts, and the second movable contacts make contact with the corresponding fixed contacts, and the movable contact strips are not electrically coupled to the reset contact. The trip component is capable of latching the reset component with the movable component for the movable component to move to the third position upon detection of a reset request and releasing the reset component from the movable component for movable component to move to the first position upon detection of a fault condition. | ||||||
| 130 | Ground fault circuit interrupter containing a dual-function test button | US11633009 | 2006-12-04 | US20070086127A1 | 2007-04-19 | Huadao Huang |
| The present invention provides a circuit interrupting device, preferably a ground fault circuit interrupter (GFCI), which contains a dual-function test button having a short pole and a long pole positioned underneath the dual-function test button. When the GFCI is properly wired and powered, a depression of the dual-function test button allows the short pole to operatively connect to a conductive pin and generate a leakage current to test the components of the GFCI. If all of the components are functioned properly, the GFCI can be reset. If not, the GFCI cannot be reset. When the GFCI is miswired or reverse wired and not powered, a depression of the dual-function test button does not test the components of the GFCI. However, a further depression of the dual-function test button allows the long pole presses against a tripping lever on a locking member in a tripping device which mechanically trip the GFCI. The present invention further provides an end-of-life detection circuit which can automatically generates a simulated leakage current to test the components in the GFCI. If one or more components are not functioned properly, the end-of-life circuit prevents the GFCI from resetting. | ||||||
| 131 | Ground fault circuit interrupter containing a dual-function test button | US11634074 | 2006-12-06 | US20070076337A1 | 2007-04-05 | Huadao Huang |
| The present invention provides a circuit interrupting device, preferably a ground fault circuit interrupter (GFCI), which contains a dual-function test button having a short pole and a long pole positioned underneath the dual-function test button. When the GFCI is properly wired and powered, and preferably in a reset state, a first-level depression of the dual-function test button allows the short pole to close a flexible switch (KT) to electrically connect a power input end to a power output end and generate a leakage current to test the components of the GFCI. If all of the components are functioned properly, the GFCI can be reset. If not, the GFCI cannot be reset. When the GFCI is miswired or reverse wired and not powered, the first-level depression of the dual-function test button does not test the components of the GFCI. However, a second-level depression of the dual-function test button allows the long pole presses against a tripping lever on a locking member in a tripping device which mechanically trip the GFCI. The present invention further provides an end-of-life detection circuit which can automatically generates a simulated leakage current to test the components in the GFCI. If one or more components are not functioned properly, the end-of-life circuit prevents the GFCI from resetting. | ||||||
| 132 | Ground fault circuit interrupter with end of life indicators | US11362037 | 2006-02-27 | US07195500B2 | 2007-03-27 | Huadao Huang; Huayang Lu |
| The present invention provides a GFCI that not only has ground fault protection, but also is capable of providing reverse wiring protection as well as detection of end of the service life of the GFCI by way of utilizing an end of life detection control circuit in connection with the reset button. In addition, the GFCI of the present invention provides a forcible mechanical tripping assembly by way of utilizing the test button. Finally, the present invention provides method for detecting whether the service life of the GFCI has ended. | ||||||
| 133 | Self testing digital fault interrupter | US11198400 | 2005-08-08 | US20070030608A1 | 2007-02-08 | John Baldwin; Sorin Mortun; Daming Yu |
| A self testing fault detector having a line side and a load side and a conductive path there between. The apparatus includes a solenoid, which is adapted to move a plurality of contacts disposed in the conductive path from a first position to a second position when the self testing device is powered from the line side; and a processor, which is adapted to energize the solenoid using a first switch and maintain said solenoid in the energized state using a second switch. | ||||||
| 134 | Ground fault circuit interrupters with miswiring or reverse wiring protection and end of life alarm signal | US11362040 | 2006-02-27 | US20060279886A1 | 2006-12-14 | Huadao Huang; Huayang Lu |
| This invention provides protection against an electricity leak and prevents error in reverse wiring. Also, when the ground fault circuit interrupter has come to the end of its life and its functions fail, it can set off an alarm prompt signal, reminding the user to replace the interrupter in a prompt manner; when a certain part or accessory of the ground fault circuit interrupter fails, especially when the primary electromagnetic coil cannot work in a normal manner, the power output of the interrupter may be cut off through the secondary electromagnetic coil; or the test button may be pressed to mechanically cut off the power output of the interrupter. This invention has powerful applications, with good safe guard and is safe to use, thus effectively ensuring the personal safety of the user as well as the safety of the appliances. | ||||||
| 135 | Ground fault circuit interrupters providing end of the life test | US11362039 | 2006-02-27 | US20060238933A1 | 2006-10-26 | Huadao Huang; Huayang Lu |
| This invention discloses a ground fault circuit interrupter capable of detecting its end of life, and is characterized by: a pair of flexible metal sheets connected to the power output end are added on the circuit board of the interrupter, and there is a pair of moving contacts on the metal sheets; there are two pairs of fixed contacts on the power output conductors; the two pairs of fixed contacts on the power output conductors respectively correspond to the moving contacts on the power input metal sheets and the moving contacts on flexible metal sheets, thus forming two groups and four pairs of switches. There is also a tripping apparatus on the circuit board, which can release/trip the interrupter, thus cutting off the power output of the interrupter. An end of life detection circuit has also been added to the circuit board. After the interrupter is energized, various components in the interrupter are automatically detected. If it is found that the interrupter has come to the end of its life, the reset button will be prevented from resetting, so that neither the load end of the interrupter nor the power output holes on the surface of the interrupter have any power output. This invention has powerful applications, with sound safety precautions, thus effectively ensuring the personal safety of the user as well as the safety of the appliances. | ||||||
| 136 | Method for determining wear of a switchgear contacts | US10498348 | 2002-12-17 | US07109720B2 | 2006-09-19 | Gilles Baurand; Jean-Christophe Cuny; Stephane Delbaere |
| In a switching device, a method and device for determining the wear of the pole contacts (C1, C2, C3) actuated by an electromagnet (20) whose movement is controlled by an excitation coil (21) by the variation of a contact wear distance travel time (Tu) generated during an electromagnet closing movement, by measuring at least one electrical signal (Ip) representing the conducting state of at least one power pole, by measuring an excitation current (Is) passing through the coil (21) of the electromagnet and by comparing the electrical signal (Ip) and the excitation current (Is) as a function of time. The measured wear distance travel time (Tu) can then be compared with an initial travel time (Ti) stored in the switching device. | ||||||
| 137 | Protection device with lockout test | US10729392 | 2003-12-05 | US07068481B2 | 2006-06-27 | Dejan Radosavljevic; Thomas N. Packard; Bruce F. Macbeth |
| The present invention is directed to a protective device that includes a plurality of line terminals configured to be connected to an electrical distribution system, and a plurality of load terminals configured to be connected to at least one load. The device includes a fault detection circuit coupled to the plurality of line terminals and the plurality of load terminals. The fault detection circuit is configured to detect at least one fault condition. A power interruption circuit coupled to the fault detection circuit, the power interruption circuit including a set of movable contacts configured to decouple the plurality of line terminals from the plurality of load terminals in response to the fault detection circuit detecting the at least one fault condition. A reset mechanism is coupled to the power interruption circuit and configured to actuate the movable contacts to re-couple the plurality of line terminals to the plurality of load terminals. A lock-out mechanism is coupled to the reset mechanism. The lockout mechanism is configured to disable the reset mechanism in a lock-out state. A test circuit is coupled to the fault detection circuit and the lock-out mechanism. The test circuit is configured to provide a simulated fault signal to the fault detection circuit. The test circuit is configured to drive the lock-out mechanism from an unlocked state to the lock-out state if the fault detection circuit and/or power interruption circuit fails to respond to the simulated fault signal within a predetermined period of time. | ||||||
| 138 | Device for protection against voltage surges with mobile electrode | US10532350 | 2003-10-02 | US20060044729A1 | 2006-03-02 | Eric Domejean; Robert Diconne |
| A protection device against voltage surges, connected between an electric line and earth, comprises a first connecting electrode, a second connecting electrode and a mobile switching electrode for switching between an operating position, in contact with the first connecting electrode, and a switching position, close to the second connecting electrode. An electric dipole, comprising for example a variable resistor and/or a spark arrester, connects the mobile electrode to the second connecting electrode. The mobile electrode can be moved by a mechanism, an electromechanical relay and/or a magnetic circuit performing repulsion when the current intensity becomes very high. Separation of the electrodes produces an arc which limits the current flowing in the dipole then, by switching on the second connecting electrode, performs disconnection of the dipole from the circuit thus ensuring protection thereof. | ||||||
| 139 | Circuit interrupter including arc fault test and/or ground fault test failure indicator | US10894523 | 2004-07-20 | US20060018059A1 | 2006-01-26 | Robert Elms; Thomas Natili |
| A circuit breaker includes a test circuit having one or two indicators, an arc fault signal generator, and first and second test switches. A first indicator is electrically connected in series with the first test switch. This series combination provides a first alternating current signal to the arc fault signal generator, which provides an arc fault signal to an arc fault trip circuit, in order to trip open separable contacts in response to closure of the first test switch. The series combination of the second test switch and the second indicator provides a second alternating current signal to a ground fault trip circuit, in order to trip in response to closure of the second test switch. The indicators provide a visual indication of failure of the arc fault or ground fault trip circuits to trip in response to closure of the first or second test switches, respectively. | ||||||
| 140 | Method for determining wear of a switchgear contacts | US10498348 | 2002-12-17 | US20050122117A1 | 2005-06-09 | Gilles Baurand; Jean-Christophe Cuny; Stephane Delbaere |
| In a switching device, the invention relates to a method for determining the wear of the pole contacts (C1, C2, C3) actuated by an electromagnet (20) whose movement is controlled by an excitation ceil (21). Wear is determined with the variation of a contact wear distance travel time (Tu) generated during an electromagnet closing movement, by measuring at least one electrical signal (Ip) representing the conducting state of at least one power pole, by measuring an excitation current (Is) passing through the coil (21) of the electromagnet and by comparing the electrical signal (Ip) and the excitation current (Is) as a function of time. The measured wear distance travel time (Tu) can then be compared with an initial travel time (Ti) stored in the switching device. The invention also relates to a switching device capable of using such a method. | ||||||
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