41 |
Circuit breaker |
JP1609889 |
1989-01-25 |
JP2824522B2 |
1998-11-11 |
ウイリアム・ジョン・マーフィ |
|
42 |
JPH06505622A - |
JP51050193 |
1992-11-26 |
JPH06505622A |
1994-06-23 |
Guenter Schramm; Walter Kohl; Friedhelm Meyer; Rainer Mittag; Helmut Suelzle |
|
43 |
Electric heating sensor |
JP32942889 |
1989-12-19 |
JPH02213733A |
1990-08-24 |
DAGURASU BII SUTOROTSUTO; TEIMOSHII HOWAITO; KEISU DABURIYU KAWATE; TOOMASU UIESETSUKU; KAARETON EMU KOBU ZA SAADO; SEPIIDE EICHI NOTSUTO |
PURPOSE: To realize an electric heating sensor to be manufactured economically by constituting the sensor of an electric insulating layer, a thermistor and two small thermistors arranged in the central region of electric insulating layer, lead wires for connecting the thermistors externally, etc.
CONSTITUTION: A protrusion 1 to be connected electrically with a shunt 5 is disposed on the opposite side and a first glass electric insulating layer 2 is formed on the shunt 5. A first thermistor 3 is then formed on and in the central region of the electric insulating layer 2. A pair of protrusions 8 to be connected with the ends of lines 6, 7 are secured to the surface of the electric insulating layer 2. A third pair of protrusions 9 similar to the second pair of protrusions 8 and formed along the second pair are connected with the end of lead wires 10, 11 on the electric insulating layer 2 for interconnecting two small thermistors 12, 13 formed on the opposite edge region of the electric insulating layer 2. A second glass electric insulating layer 4 is provided on the electric insulating layer 2 and on the thermistors 3, 12, 13 and lead wires 6, 7, 10, 11, 14 formed thereon.
COPYRIGHT: (C)1990,JPO |
44 |
JPH02501883A - |
JP50071588 |
1987-12-07 |
JPH02501883A |
1990-06-21 |
|
|
45 |
JPS64920B2 - |
JP13755280 |
1980-10-03 |
JPS64920B2 |
1989-01-09 |
OOTSUKA KENICHI; MAEKAWA KATSU; UDAGAWA RYUSUKE; KO TADAHARU |
|
46 |
Load protecting device |
JP6970482 |
1982-04-27 |
JPS57183214A |
1982-11-11 |
ROBAATO TOREESHII ERUMUSU; AANESUTO FURANSHISU KONROI JIY |
|
47 |
Contact temperature detecting circuit for electric switch |
JP13329576 |
1976-11-08 |
JPS5276980A |
1977-06-28 |
DEEBUIDO RICHIYAADO BUUSUMAN; EBUARITSUTO CHIYAARUZU ERUGAA; ROBAATO HENRII REIDAA |
|
48 |
Tokunidenryunikankeisuru shakuhokitsukinodenshishikidendokihogorireeniokeru ketsusooyobi reidenryukenshutsuki |
JP7751775 |
1975-06-23 |
JPS5142941A |
1976-04-12 |
MIHAERU HENCHERU; HAINTSU UNTAABEEGAA |
|
49 |
JPS5033217B1 - |
JP4758468 |
1968-07-09 |
JPS5033217B1 |
1975-10-28 |
|
|
50 |
JPS4976052A - |
JP11064973 |
1973-10-03 |
JPS4976052A |
1974-07-23 |
|
|
51 |
JPS4119038Y1 - |
JP4097864 |
1964-05-27 |
JPS4119038Y1 |
1966-09-05 |
|
|
52 |
POWER SUPPLY CONTROL DEVICE |
US15775665 |
2016-11-30 |
US20180351346A1 |
2018-12-06 |
Yuuki Sugisawa; Shunichi Sawano |
A power supply control device prevents an electrical wire and a switch element from smoking. The power supply control device includes a switch element provided at a midpoint in an electrical wire that connects a power supply and a load. A current detection unit detects the current value of current flowing in the electrical wire. A temperature estimation unit estimates the wire temperature of the electrical wire based on the current value detected by the current detection unit. A control unit turns on or off the switch element based on the wire temperature estimated. The control unit estimates the smoking temperature of the switch element by changing the heat dissipation time constant of the electrical wire used in temperature calculation to a smaller value, and turns off the switch element if the wire temperature is greater than or equal to the estimated smoking temperature of the switch element. |
53 |
Variable frequency drive overvoltage protection |
US14795487 |
2015-07-09 |
US10141733B2 |
2018-11-27 |
Nathan Thomas West; David Marshall Foye; Korwin Jay Anderson |
Overvoltage protection apparatuses, systems and methods for variable frequency motor drives are disclosed. In an exemplary embodiment, a variable frequency motor drive system including a rectifier, a DC bus electrically coupled with the rectifier, and an inverter electrically coupled with the DC bus is provided. A protection device electrically coupled with the rectifier and configured to interrupt power supply to the system based upon fault conditions is provided. A controller is provided and configured to receive information indicative of a voltage of the DC bus, process the received information to model a condition of at least one component of the variable frequency motor drive, and control the protection device to interrupt power supply to the variable frequency motor drive if the modeled condition meets a fault criterion. |
54 |
WINDOW CONTROL DEVICE AND METHOD FOR VEHICLE |
US15810985 |
2017-11-13 |
US20180301891A1 |
2018-10-18 |
Kyong Ho SHON; Wung Chul CHUNG; Sug Woo SHIN; Dong Hun SON; Bo Sung JO |
The present disclosure provides a window control device and method for a vehicle. The window control device includes: a drive motor configured to open and close a window glass; a sensor configured to generate a pulse signal corresponding to a rotation of the drive motor; and a controller configured to repeatedly perform a safety function based on monitoring results of the pulse signal. |
55 |
Overcurrent detection circuit |
US14794891 |
2015-07-09 |
US09671437B2 |
2017-06-06 |
Masashi Akahane |
An overcurrent detection circuit includes a current detection resistor that generates a voltage in proportion to current flowing through a switching element and a comparator that compares the voltage detected via the current detection resistor and a reference voltage generated by a reference voltage generation circuit to thereby detect overcurrent flowing through the switching element. In particular, the reference voltage generation circuit includes: a first resistance voltage dividing circuit that resistance-divides a standard voltage by connecting, in series, two types of resistors having different temperature characteristics; a second resistance voltage dividing circuit that resistance-divides the standard voltage by connecting, in series, resistors having the same temperature characteristics; and an instrumentation amplifier that generates the reference voltage according to the difference between the divided output voltages of the first and second resistance voltage dividing circuits. |
56 |
Protection device for electricity supply circuit |
US14510651 |
2014-10-09 |
US09472940B2 |
2016-10-18 |
Yoshihide Nakamura; Akinori Maruyama; Yoshinori Ikuta; Keisuke Ueta |
When a power switch is turned off, a protection device for an electricity supply circuit starts keeping time using a timer and turns on a disconnection flag. Then the protection device turns off the disconnection flag when the timer has counted a predetermined time. When the power switch is turned off, the disconnection flag does not subsequently turn off until the predetermined time has passed. Therefore, it is possible to prevent an excessive temperature increase in the power switch and prevent damage to the power switch. |
57 |
Control device and method for operating an electrical machine driven by an inverter |
US14111631 |
2012-02-15 |
US09236826B2 |
2016-01-12 |
Christian Djonga; Stefan Gaab; Tobias Werner; Michele Hirsch; Michael Heeb; Markus Kretschmer; Torsten Heidrich |
The invention relates to a method for operating an electrical machine (1) controlled by an inverter (2), wherein the inverter (2) comprises half-bridge branches (10-U, 10-V, 10-W) having power components in the form of controllable power switching elements (3) and power diodes (4) respectively connected in parallel therewith, wherein each of the half-bridge branches (10-U; 10-V; 10-W) is arranged on a separate semiconductor module (11-U; 11-V; 11-W), which are arranged jointly on a baseplate (12), wherein the phase currents (1_U, 1_V, 1_W) flowing through the half-bridge branches (10-U, 10-V, 10-W), the voltages present at the power components and temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-U, 11-V, 11-W) are determined, from the current (1_U; 1_V; 1_W) respectively flowing at a power component and from the voltage respectively present a power loss (P) is calculated for each of the power components, from the power losses (P) a relevant temperature swing (Δt; Δt_Sens) is determined for each of the power components and for temperature sensors (13-U, 13-V, 13-W) serving to determine the temperatures on the semiconductor modules, a temperature (TempCooler) of the baseplate (12) is determined from the determined temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-u, 11-V, 11-W) and the determined temperature swings (Δt_Sens) at the temperature sensors (13-U, 13-V, 13-W), and a torque or a power of the electrical machine (1) is determined in a manner dependent on the determined temperature swings (Δt) and the determined temperature (TempCooler) of the baseplate (12). |
58 |
VARIABLE FREQUENCY DRIVE OVERVOLTAGE PROTECTION |
US14795487 |
2015-07-09 |
US20150311695A1 |
2015-10-29 |
Nathan Thomas West; David Marshall Foye; Korwin Jay Anderson |
Overvoltage protection apparatuses, systems and methods for variable frequency motor drives are disclosed. In an exemplary embodiment, a variable frequency motor drive system including a rectifier, a DC bus electrically coupled with the rectifier, and an inverter electrically coupled with the DC bus is provided. A protection device electrically coupled with the rectifier and configured to interrupt power supply to the system based upon fault conditions is provided. A controller is provided and configured to receive information indicative of a voltage of the DC bus, process the received information to model a condition of at least one component of the variable frequency motor drive, and control the protection device to interrupt power supply to the variable frequency motor drive if the modeled condition meets a fault criterion. |
59 |
ELECTRIC COMPRESSOR |
US14415098 |
2013-06-06 |
US20150295532A1 |
2015-10-15 |
Koji SAKAI |
A controller for an electric compressor sets a temperature rise region A, a temperature drop region B, and a steady region C from change in temperature of switching elements, and sets a carrier frequency for each of the set regions. In the region A, the carrier frequency is changed according to the element temperature so that the carrier frequency decreases with increase of the element temperature at startup of a motor. In the region B and the region C, the carrier frequency is changed according to the number of revolutions of a compression mechanism, so that the carrier frequency decreases with increase of the number of revolutions of the compression mechanism, regardless of the element temperature. |
60 |
Monitoring operating condition of electrical component |
US13687514 |
2012-11-28 |
US09129510B2 |
2015-09-08 |
Wei Huang; Khoi Nguyen; Douglas A. Voda; David C. Lawrence; Harshavardhan M. Karandikar |
Among other things, one or more techniques and/or systems are provided for monitoring an operating condition of an electrical component, such as electrical switchgear. In one example, temperatures associated with an electrical conductor connection within the electrical component may be evaluated against one or more expected temperatures curves derived from a linear regression model to determine whether the electrical conductor connection has failed or is starting to fail. In another example, temperature readings may be monitored to determine whether a temperature reading at one location is out of sync with temperature readings at other locations. An electrical conductor connection associated with a location of the out of sync temperature may be determined as faulty. In another example, a Euclidean distance model and/or a correlation coefficient model may be used to identify a faulty electrical conductor connection. In this way, failure and/or potential failure of the electrical component may be predicted. |