With Electrical Component (e.g., Transformer) Patents (Class 374/152)
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Publication number: 20150030898Abstract: A method and a device for identifying an increase in temperature in a plurality of electrochemical storage cells. An electrical characteristic value of a series connection of PTC elements that are thermally coupled in each case to a storage cell is determined and an increase in temperature of a plurality of electrical storage cells is identified if a value that is obtained as a result of evaluating the electrical characteristic value achieves a predefined threshold value.Type: ApplicationFiled: July 22, 2014Publication date: January 29, 2015Inventors: Stefan Butzmann, Jens Boehme
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Publication number: 20150010040Abstract: A wireless thermometer is provided, which measures a deep temperature with high accuracy and has an improved communication distance. A wireless thermometer includes a flat film-like substrate. A quartz crystal vibrator and an antenna are disposed on a principal surface of the substrate. A quartz crystal vibrator and an antenna are disposed on the other principal surface of the substrate. A winding conductor of the antenna is substantially symmetrical with a winding conductor of the antenna with respect to the substrate. A lead conductor of the antenna is connected to the winding conductor at one end and is connected to the quartz crystal vibrator at the other end. A central portion of the lead conductor is bent. By folding the central portion, the quartz crystal vibrator can be positioned opposite the quartz crystal vibrator with a heat insulator interposed there between.Type: ApplicationFiled: September 23, 2014Publication date: January 8, 2015Inventors: Yoshihiro Ito, Yuri Hoshino
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Publication number: 20150010039Abstract: The invention relates to a method for measuring the temperature of at least one electronic component (2) using a sensor (4) that supplies a temperature-dependent voltage. The method comprises the following steps in which: a signal representative of the voltage delivered by the sensor (4) is made to pass through an isolated differential amplifier (13), and the signal output from said isolated differential amplifier (13) is used to determine the temperature measured by the sensor (4).Type: ApplicationFiled: December 11, 2012Publication date: January 8, 2015Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Larbi Bendani, Mimoun Askeur
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Publication number: 20150001965Abstract: A method for determining the temperature of an electronic component in an electronic device comprises supplying a current to the electronic component via a power converter device, measuring an input current supplied to the power converter device, determining a power dissipation of the electronic component based on the measured input current, a value for an efficiency of the power converter device and an output voltage of the power converter device, and determining the temperature of the electronic component based on the determined power dissipation and a thermal resistance value for the electronic component.Type: ApplicationFiled: November 21, 2013Publication date: January 1, 2015Applicant: Dialog Semiconductor GmbHInventors: Alessandro Angeli, Michele DeFazio, Stefano Scaldaferri, Christian Wolf
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Publication number: 20140376592Abstract: The invention relates to a device for representing and displaying the coil temperature of an electrical power transformer and to an electrical circuit suitable therefor. The invention is based on the general concept of using the CT-signal current not only for supplying the heating resistor of a sensor, for example, but also for decoupling energy from the CT-signal current by transformation via an electronic circuit according to the invention in order to supply energy to the connected measurement devices, so that a separate energy source can thus be ultimately omitted.Type: ApplicationFiled: May 25, 2012Publication date: December 25, 2014Inventors: Sebastian Hollunder, Martin Kubiczek
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Publication number: 20140362889Abstract: A method and apparatus for determining a control temperature to control a function of an electronic device by using an atmospheric temperature when controlling a temperature of the electronic device, and for controlling the function of the electronic device according to a control step of the determined control temperature are provided. A method of operating an electronic device includes measuring an atmospheric temperature, determining at least one control temperature corresponding to the measured atmospheric temperature, measuring an internal temperature of the electronic device, and controlling a function in accordance with the measured internal temperature of the electronic device and the determined at least one control temperature.Type: ApplicationFiled: May 28, 2014Publication date: December 11, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Ki-Youn JANG, Min-Su KIM, Kun-Tak KIM, Chi-Hyun CHO
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Patent number: 8905634Abstract: A temperature detection apparatus includes a transformer, a thermostat attached directly to an electrically conductive site of the heating element and has contacts that become short-circuited or come into an open-circuit condition depending on whether or not the temperature of the heating element is equal to or higher than a predetermined value, the contacts being connected to a secondary coil in the transformer, a DC voltage source and a transistor configured to supply required AC power to a primary coil in the transformer, a current detection resistor configured to detect a current flowing through the primary coil in the transformer, and a comparison circuit detecting a voltage generated across the current detection resistor when a current flows through the current detection resistor, the comparison circuit outputting an alarm signal when the current flowing through the primary coil in the transformer exceeds a preset threshold current.Type: GrantFiled: May 29, 2013Date of Patent: December 9, 2014Assignee: Netcomsec Co. LtdInventors: Yukihira Nakazato, Junichi Matsuoka
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Publication number: 20140354185Abstract: There are provided a display device which can accurately estimate an ambient temperature around the display device, a computer program, a recording medium, and a method for estimating an ambient temperature. A panel temperature sensor and a switch board temperature sensor are disposed in different positions of a display device. A control unit specifies correlation information indicating the correlation between a first temperature difference between a temperature detected by the panel temperature sensor and an ambient temperature and a second temperature difference between a temperature detected by the switch board temperature sensor and the ambient temperature. The control unit estimates the ambient temperature on the basis of the specified correlation information and the temperatures and detected by the panel temperature sensor and the switch board temperature sensor.Type: ApplicationFiled: June 7, 2012Publication date: December 4, 2014Applicant: EIZO CorporationInventor: Yuya Yoshida
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Publication number: 20140355649Abstract: There is provided a portable electronic device with one or more integrated temperature sensors (12) for measuring an ambient temperature, a compensator (25,26) for reducing the difference between a sensor output (Ts) and the ambient temperature (Ta) with the compensator (25,26) switching depending on environmental and/or handling conditions between a plurality of compensation modes selected dependent on measurements of one or more other integrated and/or external sensors.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Inventors: Dominik Niederberger, Andrea Sacchetti, Dominic Boni
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Publication number: 20140334107Abstract: A portable electronic device including a temperature sensor embedded in a die is provided. To process temperature measurements the portable electronic device includes a processor circuit coupled to the temperature sensor, the processor circuit configured to read a measurement from the temperature sensor when an integrated circuit in the die is inactive. Furthermore, a memory circuit coupled to the processor circuit and the temperature sensor stores a temperature gradient provided by the temperature sensor. A Printed Circuit Board for use in a portable electronic device as above is also provided. A method for performing thermal control in a portable electronic device as above is also provided.Type: ApplicationFiled: May 9, 2013Publication date: November 13, 2014Applicant: Apple Inc.Inventors: Amaury J. HERESZTYN, Ihtesham H. CHOWDHURY, Keith COX
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Patent number: 8864373Abstract: A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.Type: GrantFiled: September 12, 2011Date of Patent: October 21, 2014Assignee: National Semiconductor CorporationInventors: Luan Minh Vu, Thomas Y. Tse, Tuong Hoang
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Patent number: 8845188Abstract: In a method for determining a state of an apparatus, detected temperatures are received from a plurality of sensors and are compared to at least one preset condition. The state of the apparatus is determined based upon the comparison.Type: GrantFiled: January 31, 2011Date of Patent: September 30, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Ratnesh Sharma
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Patent number: 8845189Abstract: An integrated circuit includes a device identification circuit and a temperature sensor diode connected in parallel from a common node. The device identification circuit includes a resistor connected to a diode-connected transistor. The device identification circuit and the temperature sensor diode are adapted to not be simultaneously operating in an ON state. A first voltage is applied to the common node to place the device identification circuit in an ON state and place the temperature sensor diode in an OFF state to identify the integrated circuit. A second voltage is applied to the common node to place the device identification circuit in an OFF state and place the temperature sensor diode in an ON state to determine a temperature of the integrated circuit.Type: GrantFiled: September 21, 2011Date of Patent: September 30, 2014Assignee: Semiconductor Components Industries, LLCInventors: Shen Wang, Edward T. Nelson
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Publication number: 20140269830Abstract: Systems and methods related to the determination of one or more mechanical characteristics of a structural element are generally described. In some embodiments, a mechanical characteristic (e.g., a crack, a deformation, an inclusion, etc.) can be determined based at least in part upon the determination of a temperature generated, for example, by passing a current through a network of structures within the structural element. For example, in some embodiments, the structural element can comprise a network of electrically conductive nanostructures and, in some cases, a primary structural material that is not substantially electrically conductive. An electrical current can be passed through the network of electrically conductive nanostructures (e.g., by passing current through an electrical circuit comprising the network of electrically conductive nanostructures). This may result in resistive heating (also known as Joule-effect heating) of the nanostructure network.Type: ApplicationFiled: February 14, 2014Publication date: September 18, 2014Applicant: Massachusetts Institute of TechnologyInventors: Brian L. Wardle, Roberto Guzman de Villoria, Antonio Miravete
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Publication number: 20140269829Abstract: A process sensor assembly comprises a hollow protective housing, a temperature sensor, a process transmitter, and a transient protector. The temperature sensor includes a probe extending out of the hollow protective housing to a sensing location, and a top plate movably secured to the hollow protective housing so as to allow travel within the hollow protective housing with vibrations of the probe. The process transmitter is configured to process and transmit sensor signals from the temperature sensor, and is retained on the top plate to move with the temperature sensor within the hollow protective housing. The transient protector is configured to condition power for to the process transmitter, and is anchored to the process transmitter so as to move with the process transmitter within the hollow protective housing.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: Rosemount Inc.Inventors: Andrew James Bronczyk, Aaron Andrew Perrault, Frank L. Green
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Patent number: 8801279Abstract: A semiconductor device, memory device, system, and method of using a stacked structure for stably transmitting signals among a plurality of semiconductor layers is disclosed. The device includes at least a first semiconductor chip including a first temperature sensor circuit configured to output first temperature information related to the first semiconductor chip, and at least one through substrate via.Type: GrantFiled: July 6, 2011Date of Patent: August 12, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-sik Kim, Dong-hyuk Lee, Ho-cheol Lee, Jang-woo Ryu
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Publication number: 20140219314Abstract: The present invention pertains to a non-contact temperature monitoring device, wherein: temperature data and image data are simultaneously outputted to a monitoring unit by simultaneously photographing a temperature detection target and detecting the temperature of the temperature detection target in a non-contact manner, in which the temperature state of the temperature detection target and on-site conditions can be monitored in real time; the state of the temperature detection target is photographed using an image capturing unit only when the temperature state of the temperature detection target is abnormal, thereby simplifying an operation in a normal state and more accurately detecting on-site conditions using image information in emergency situations. Accordingly, quicker and more accurate responses are possible, thereby preventing fire accidents in industrial settings.Type: ApplicationFiled: September 7, 2012Publication date: August 7, 2014Inventor: Deog Bong Ryou
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Publication number: 20140217896Abstract: A control system is disclosed for determining an actual temperature of a light emitting diode. The control system uses conductor that supply power to the light emitting diode to supply a pulse to the light emitting diode. The pulse is determined along with a reaction caused by the pulse and the information gained is used in determination of the light emitting diode die temperature which can then be used in controlling current to the light emitting diode to control the temperature of the light emitting diode.Type: ApplicationFiled: February 11, 2014Publication date: August 7, 2014Inventors: Anthony W. Catalano, Daniel Harrison
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Patent number: 8794827Abstract: Flexible circuits 2, 3 are formed on a flexible insulating sheet 1. A thermal sensor 4 is connected between the circuits 2, 3. The thermal sensor 4 and connecting parts 5 are integrally covered with an elastic insulating resin 6. While the insulating sheet 1 is bent together with the insulating resin 6, the thermal sensor 4 is pushed onto an object to be sensed 8 via the insulating sheet 1. A plurality of thermal sensors 4 are connected in series in a longitudinal direction of the insulating sheet 1. The insulating resin 6 covers the thermal sensors 4 and the connecting parts 5.Type: GrantFiled: December 18, 2009Date of Patent: August 5, 2014Assignee: Yazaki CorporationInventors: Satoshi Ishikawa, Susumu Yamamoto
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Publication number: 20140212289Abstract: The invention regards a method for estimating the temperature of a semiconductor chip accommodated in a power semiconductor device in operation, such as an IGBT power module, the method comprising the steps of; while the power semiconductor device is in operation determining a voltage drop over the power semiconductor device for a value of applied load current and; estimating the temperature of the semiconductor chip by evaluating the relationship between the determined voltage drop and the value of applied load current on the basis of a semiconductor chip temperature model. The invention also regards the corresponding apparatus for estimating the temperature of a semiconductor chip, as well as a wind turbine comprising such an apparatus.Type: ApplicationFiled: August 13, 2012Publication date: July 31, 2014Applicant: kk-electronic A/SInventors: Paul Bach Thogersen, Bjørn Rannestad
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Publication number: 20140204973Abstract: A temperature measuring system of an electric motor, including an electroconductive holding member holding a coil end of an end of a stator coil comprised of a winding wire wound around a stator core, a resistance measuring part measuring a resistance of the holding member, and a temperature calculating part calculating a temperature of the winding wire based on a resistance value measured by the resistance measuring part.Type: ApplicationFiled: January 17, 2014Publication date: July 24, 2014Applicant: FANUC CORPORATIONInventors: Shinichi Kinoshita, Yamato Mishima
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Patent number: 8765477Abstract: A method for measuring the real hot-spot temperature in an electric apparatus containing an oil, such as an electric power transformer. The electric apparatus is operated under predetermined and modifiable operating conditions. This method comprises the use of one or several chemical compounds or tracers present and soluble in the oil. Each tracer may transform, at a given temperature, in order to form a residue, such as a soluble gas. From the presence of the residue in the oil, the operator will be able to determine under which predetermined operating condition the hot-spot has been reached and to deduce the hot-spot for a given condition. Among different used compounds, there are diazoic compounds, carbonyl metals, colorants, pigments, liquid crystals and albumins. The method also allows to check the quality of the apparatus on the market and to estimate its life span.Type: GrantFiled: February 5, 2009Date of Patent: July 1, 2014Assignee: Hydro-QuebecInventors: Pierre Couture, Michel Duval
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Publication number: 20140177672Abstract: A device for attaching to a power line conductor includes a jaw assembly and at least one jaw slot formed on a portion of the jaw assembly configured to engage a stranded power line conductor. The at least one jaw slot extends at an angle on the jaw assembly configured to match a helical angle of strands on an outer surface of the stranded power line conductor and configured to space the jaw assembly from at least one strand of the stranded power line conductor.Type: ApplicationFiled: December 4, 2013Publication date: June 26, 2014Inventor: Murray W. DAVIS
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Publication number: 20140176122Abstract: A device for attaching to an electric power line conductor includes an electrically conductive housing with an opening for accepting the power line conductor and configured to be grounded to the power line conductor. At least one magnetic core is configured to surround the power line conductor and power a power supply electronics module. An ambient temperature measuring assembly is mounted inside and near the bottom of the electrically conductive housing. The ambient temperature measuring assembly is thermally insulated from the housing for thermally separating the ambient temperature measuring assembly from the housing.Type: ApplicationFiled: November 27, 2013Publication date: June 26, 2014Inventor: Murray W. DAVIS
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Patent number: 8762097Abstract: In one aspect, a data processing system includes a virtual temperature sensor to provide system temperature for different system configurations, and a controller coupled to the sensor to control operations of the data processing system according to the virtual temperature. The virtual temperature sensor typically derives the temperature of a particular configuration of the data processing system using mathematical models or one or more operating parameters of the data processing system. In one example, the mathematical models include a characterization table which provides the measured temperature data from various system configurations. These measurements are performed with temperature sensors positioned in ideal locations for different configuration, and are preprocessed to provide the virtual temperature computation. The characterization table also includes thermal characteristics, such as thermal time constant and thermal resistance, of the critical components at multiple thermal control states.Type: GrantFiled: April 24, 2007Date of Patent: June 24, 2014Assignee: Apple Inc.Inventor: Timothy John Millet
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Patent number: 8756025Abstract: Methods and apparatus are provided related to thermal protection of electrical batteries. A sensor senses the temperature of a battery and a corresponding digital signal is digitally derived. Date, time and temperature data are written to storage media. A time-rate-of-change of the battery's temperature is determined and used to establish operational periodicity. Stored digital data can be communicated to another entity, temperature or time-rate-of-change values used to trigger an alarm or system shut-down, and so on. Electronic circuitry toggles between an active mode and a power-conserving sleep mode in accordance with periodic operating schedule.Type: GrantFiled: January 18, 2011Date of Patent: June 17, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Neel Banerjee, Anton Nicholas Clarkson
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Publication number: 20140161152Abstract: In a method for thermal monitoring of a converter the temperature of the converter is measured. In addition, the output power of the converter is determined. The temperature of the converter is estimated by means of a thermal model of the converter having the output power as an input variable. The estimated temperature is compared with the measured temperature, and a corresponding monitoring signal is provided.Type: ApplicationFiled: July 23, 2012Publication date: June 12, 2014Inventor: Andreas Kuhn
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Publication number: 20140133517Abstract: A device for monitoring the temperature surrounding a circuit, including: a charge storage element; a charge evacuation device; and a thermo-mechanical switch connecting the storage element to the evacuation element, the switch being capable of closing without the circuit being electrically powered, when the temperature exceeds a threshold.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: STMicroelectronics (Rousset) SASInventors: Pascal Fornara, Christain Rivero
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Publication number: 20140112370Abstract: Systems and methods of managing memory devices provide for reduced power consumption and better thermal management through enhanced memory throttling. In one embodiment a memory unit includes a memory device and a temperature measurement module coupled to the memory device. The temperature measurement device measures the internal temperature of the memory device. Memory throttling can therefore be implemented based on more accurate measurements and with a much shorter response time.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Inventors: Pochang Hsu, Animesh Mishra, Jun Shi
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Patent number: 8702304Abstract: Methods and systems for determining when an electrical contact reaches the maximum allowable temperature. The methods and systems include defining a plurality of temperature indicators installed in at least one surface of the electrical contact to indicate at least one specific temperature; providing a trace material within the at least one temperature indicator; allowing the electrical contact to reach the at least one specific temperature at which the at least one temperature indicator is designed to activate in or on the at least one surface of the electrical contact; causing the trace material to disperse from the at least one temperature indicator into a surrounding environment; and monitoring the surrounding environment to determine when a predetermined quantity of the trace material has dispersed into the surrounding environment, thereby indicating that the electrical contact has reached the at least one specific temperature at which the at least one temperature indicator is designed to activate.Type: GrantFiled: March 14, 2011Date of Patent: April 22, 2014Inventor: Bruce W. Nichols
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Patent number: 8702303Abstract: Methods and devices for mounting a sensor are presented herein. A temperature sensor assembly for a capacitor bank is disclosed that includes two opposing substrates, and a plurality of contact temperature sensors attached to each substrate. Each temperature sensor is configured to directly contact a surface of one of the capacitor cans in the capacitor bank and therefrom generate a signal indicative of the temperature of the capacitor can. A biasing member attaches the two substrates together. The biasing member is configured to selectively contract, such that the width of the sensor assembly is less than the gap distance between adjacent sets of tandem capacitor cans and the sensor assembly can insert between the sets of capacitor cans, and expand, such that the width of the sensor assembly is greater than the gap distance and the sensor assembly is tensioned against and thereby secured between the sets of capacitor cans.Type: GrantFiled: June 29, 2011Date of Patent: April 22, 2014Assignee: Schneider Electric USA, Inc.Inventors: Jeffrey J. Farago, Marcelo Perez, Stewart J. Harding
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Publication number: 20140092936Abstract: A method, an apparatus, and an electric system for diagnosing a device (104) for determining the temperature of a component (101) of an electric unit (107) are provided. In a first step (203), a first temperature gradient (TG1) of the component (101) is ascertained. A second temperature gradient (TG2) is determined using the device (104) for determining the temperature of a component (101). In a second step (204), a difference between the first and the second temperature gradient (TG1, TG2) is ascertained.Type: ApplicationFiled: September 24, 2013Publication date: April 3, 2014Inventor: Miguel Casares
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Patent number: 8684596Abstract: An alternating current impedance-estimating section (106) estimates an alternating current impedance (Rh) of the secondary battery based on electric current (I) and voltage (V) of the secondary battery detected when a ripple generating section causes a ripple current to flow in the secondary battery. A temperature estimating section (108) estimates the temperature (T) of the secondary battery based on the alternating current impedance (Rh) estimated by the alternating current impedance-estimating section (106) with the use of the relation, obtained in advance, between the temperature (T) of the secondary battery and the alternating current impedance (Rh) of the secondary battery at a ripple frequency.Type: GrantFiled: July 7, 2010Date of Patent: April 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Nishi, Hidenori Takahashi, Masatoshi Tazawa, Masanobu Matsusaka, Keiji Kaita
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Patent number: 8636406Abstract: An apparatus determines cooling characteristics of an operational cooling device used for transferring heat from an electronic device. The operational cooling device is thermally coupled to a heat pipe. The heat pipe has an exposed surface for selective application of heat thereon. Heat from a localized heat source is selectively applied to at least one region of the exposed surface. The heat source is preferably capable of being varied both positionally relative to the exposed surface and in heat intensity. A heat shield is preferably positioned around the exposed surface of the heat pipe to isolate the operational cooling device from the heat from the localized heat source. A temperature detector repeatedly measures a temperature distribution across the exposed surface while the cooling device is in a heat transfer mode. The temperature distribution is then used to thermally characterize the operational cooling device.Type: GrantFiled: April 12, 2012Date of Patent: January 28, 2014Assignee: International Business Machines CorporationInventors: Hendrik F. Hamann, Madhusudan K. Iyengar, James A. Lacey, Roger R. Schmidt
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Publication number: 20130342362Abstract: A system for monitoring operation of a railcar having one or more sensing units, mounted on the railcar, for monitoring operating parameters and or conditions of the railcar, and a communication management unit, in wireless communication with the sensing units, wherein the system can make a determination of an alarm condition based on data collected the sensing units. A temperature sensor device for use in such a system is also provided.Type: ApplicationFiled: March 15, 2013Publication date: December 26, 2013Applicant: AMSTED RAIL COMPANY, INC.Inventor: AMSTED RAIL COMPANY, INC.
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Publication number: 20130336358Abstract: An electronic cigarette with a thermometer comprises a case body for accommodating at least one electronic cigarette. The case body further comprises a thermometer device disposed therein. The thermometer device comprises a thermometry unit, a display unit and a circuit processing unit. The thermometry unit detects temperatures of articles to be tested or media to be tested and transmits temperature data to the circuit processing unit for controlling the display unit to display measured temperatures. The thermometry unit comprises a temperature sensor and an electrode piece. The thermometry unit comprises a temperature sensor and an electrode piece. The temperature sensor is disposed at an outside of the case body and is electrically connected with the circuit processing unit via the electrode piece. The electronic cigarette case of the present invention is capable of detecting temperatures of human bodies, other objects or media such as surroundings.Type: ApplicationFiled: June 16, 2012Publication date: December 19, 2013Inventor: Qiuming Liu
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Publication number: 20130336359Abstract: The invention relates to an electric plug connector for electrically connecting at least one first and one second thermocouple conductor, comprising at least one electrically conductive first and second contacting means, wherein the first thermocouple conductor is to be connected to the first contacting means, and the second thermocouple conductor is to be connected to the second contacting means, at least one first electrical temperature sensor, which is provided with a temperature sensing region and with at least one first and one second electrical contact, wherein at least one part of the temperature sensing region of the first temperature sensor is directly attached to the first contacting means by a joint.Type: ApplicationFiled: May 24, 2013Publication date: December 19, 2013Applicant: Phoenix Contact GmbH & Co. KGInventor: Fabian Zink
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Publication number: 20130308679Abstract: Disclosed herein is a battery pack including a battery module having a battery cell stack structure in which at least two electrically connected battery cells or unit modules are stacked, a voltage measuring member that measures voltage at an electrode terminal connection part of the battery cells or the unit modules, a voltage measuring circuit that connects the voltage measuring member to a Battery Management System (BMS), a temperature measuring member that measures temperature of the battery cells or the unit modules, a temperature measuring circuit that connects the temperature measuring member to the BMS and that is separated from the voltage measuring circuit, and the BMS electrically connected to the voltage measuring member to control operation of the battery modules.Type: ApplicationFiled: July 23, 2013Publication date: November 21, 2013Applicant: LG CHEM, LTD.Inventors: JunSeok CHOI, Yong Shik SHIN, Jong Moon YOON
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Patent number: 8568026Abstract: A temperature measurement system capable of operating in harsh environments including a temperature sensor having an antenna, diode, and dielectric layer disposed on the object of interest is provided, wherein the antenna includes a buried portion that extends through and is electrically coupled to the object of interest, and an exposed portion disposed upon an outer surface of the dielectric layer and the diode is coupled between the object of interest and the exposed portion of the antenna. The antenna is configured to receive interrogating signals from a transmitter, and to transmit response signals corresponding to the resonant frequency of the temperature sensor and its harmonics, which are indicative of the measured temperature of the object of interest. A receiver detects the response signals and correlates the frequency to a known temperature response of the dielectric material. Methods of making and using the temperature measurement system are also provided.Type: GrantFiled: January 7, 2013Date of Patent: October 29, 2013Assignee: Wireless Sensor Technologies, LLCInventors: Otto J. Gregory, John R. Conkle, Thomas J. Birnbaum
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Patent number: 8568025Abstract: A temperature probe for use in oil-filled transformers comprises an optical fiber, a temperature sensitive member, and a protective cylindrical sheath. The optical fiber and the sensitive member are located in the protective sheath, and continuous longitudinal slit is defined along the length of the sheath to allow oil to flow therein. The optical fiber is mounted in and to the sheath using a bonding material and at a distance from the sheath. The sensitive member is adhesively mounted to the optical fiber, within the sheath, and at a distance thereof.Type: GrantFiled: October 17, 2008Date of Patent: October 29, 2013Inventors: Jean-François Meilleur, Jean-Noël Bérubé, Michel Plourde
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Publication number: 20130259089Abstract: A temperature detection apparatus includes a transformer, a thermostat attached directly to an electrically conductive site of the heating element and has contacts that become short-circuited or come into an open-circuit condition depending on whether or not the temperature of the heating element is equal to or higher than a predetermined value, the contacts being connected to a secondary coil in the transformer, a DC voltage source and a transistor configured to supply required AC power to a primary coil in the transformer, a current detection resistor configured to detect a current flowing through the primary coil in the transformer, and a comparison circuit detecting a voltage generated across the current detection resistor when a current flows through the current detection resistor, the comparison circuit outputting an alarm signal when the current flowing through the primary coil in the transformer exceeds a preset threshold current.Type: ApplicationFiled: May 29, 2013Publication date: October 3, 2013Applicant: NEC MICROWAVE TUBE, LTD.Inventors: YUKIHIRA NAKAZATO, JUNICHI MATSUOKA
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Patent number: 8540422Abstract: Tools and methods for creating isolated or localized temperature changes on components in an electric circuit. By isolating temperature changes to individual components or small sets of components, the tools and methods allow greater control over the analysis of interactions within a board. This may allow clearer understanding of the effects of temperature on circuit component behavior. The tools and analysis advances analysis such as failure analysis and design testing.Type: GrantFiled: October 4, 2010Date of Patent: September 24, 2013Assignee: Cameron Health, Inc.Inventors: Jason J. Edwardson, Timothy A. Fonte, Eric F. King, Ross G. Baker, Jr., Toby Daniel Awender
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Publication number: 20130243033Abstract: Method of assessing the remaining lifetime of a transformer operating at temperatures above IEC 60° C./65° C./78° C. or IEEE 65° C./65° C./80° C. including a core, a winding conductor covered by high temperature insulation material and pressboard material arranged as an insulation barrier and/or a supporting structure. The covered winding conductor and the pressboard material are immersed in a fluid having a fire point of at least 300° C. The method includes at least twice measuring the temperature of the fluid at its top surface and registering the time of each measurement and assessing the remaining lifetime of the transformer as a function of the measured temperatures and the corresponding registered times, and/or obtaining a sample of pressboard material that has been in contact with the fluid at its top surface and analysing the sample to assess the remaining lifetime of the transformer.Type: ApplicationFiled: May 3, 2013Publication date: September 19, 2013Inventor: Roberto Asano, JR.
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Publication number: 20130234652Abstract: The described embodiments include a power-management unit that receives and stores a representation of a temperature state of a battery pack from a battery-monitoring mechanism in a battery pack. For example, an interface circuit (such as a single-wire-interface or SWI circuit) may receive the information from the battery-monitoring mechanism via a signal line, and the information may be stored in a memory (such as a non-transitory computer-readable memory). This stored information is then used by a temperature-monitoring mechanism or circuit to determine the temperature state of the battery pack, which may be used to control or gate charging of a battery in the battery pack.Type: ApplicationFiled: December 24, 2012Publication date: September 12, 2013Applicant: APPLE INC.Inventors: Parin Patel, Scott P. Mullins
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Publication number: 20130235902Abstract: A power-management unit is described. This power-management unit allows a common signal line to communicate data between an integrated circuit (which may be external to the power-management unit) and a battery-monitoring mechanism in a battery pack, and to convey a signal that represents a temperature state of the battery pack to a temperature-monitoring circuit or mechanism that monitors the temperature state of the battery pack. In particular, the power-management unit may include a single-wire interface or a multiplexer that, at a given time, selectively couples the signal line from the battery pack either to the integrated circuit or the temperature-monitoring circuit based on a control signal provided by the integrated circuit (for example, via an I2C bus or interface). In this way, the power-management unit may reduce the number of signal lines needed to communicate with the battery-monitoring mechanism and to convey the signal.Type: ApplicationFiled: December 24, 2012Publication date: September 12, 2013Applicant: APPLE INC.Inventors: Parin Patel, Scott P. Mullins
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Patent number: 8491187Abstract: A temperature detection apparatus includes a transformer, a thermostat attached directly to an electrically conductive site of the heating element and has contacts that become short-circuited or come into an open-circuit condition depending on whether or not the temperature of the heating element is equal to or higher than a predetermined value, the contacts being connected to a secondary coil in the transformer, a DC voltage source and a transistor configured to supply required AC power to a primary coil in the transformer, a current detection resistor configured to detect a current flowing through the primary coil in the transformer, and a comparison circuit detecting a voltage generated across the current detection resistor when a current flows through the current detection resistor, the comparison circuit outputting an alarm signal when the current flowing through the primary coil in the transformer exceeds a preset threshold current.Type: GrantFiled: October 5, 2009Date of Patent: July 23, 2013Assignee: NEC Microwave Tube, Ltd.Inventors: Yukihira Nakazato, Junichi Matsuoka
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Publication number: 20130160373Abstract: A thermal window comprising a thermally transparent window member, a window frame for receiving the thermally transparent window member, and at least one transmitter configured to transmit electromagnetic radiation with a frequency from 3 Hz to 300 GHz. The thermal window also has a cover for protecting the thermally transparent window member, wherein the cover may be mounted to the window frame by a spring loaded hinge.Type: ApplicationFiled: December 18, 2012Publication date: June 27, 2013Applicant: Certification Information LimitedInventor: Certification Information Limited
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Patent number: 8449173Abstract: Some embodiments provide a system that tests a computing system. During operation, the system monitors a temperature of a component in the computing system while running a series of calibrated workloads on the component. Next, the system analyzes a fluctuation of the temperature resulting from the calibrated workloads to determine a thermal performance of the component. The system then uses the determined thermal performance to improve the reliability of the computing system.Type: GrantFiled: May 5, 2008Date of Patent: May 28, 2013Assignee: Google Inc.Inventor: Jasmine Strong
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Patent number: 8444316Abstract: Current reading means detects an output current of a current source whose output current varies with a variation in temperature and outputs a value proportional to the output current. The temperature of the current source corresponding to the output value of the current reading means which is proportional to the output current of the current source is measured, and a parameter for converting the output value to temperature information is determined from the output value of the current reading means and the measured value of the temperature of the current source corresponding to the output value. The output value of the current reading means is converted to the temperature information using the determined parameter.Type: GrantFiled: November 27, 2008Date of Patent: May 21, 2013Assignee: NEC CorporationInventors: Eisuke Saneyoshi, Koichi Nose, Mikihiro Kajita, Masayuki Mizuno
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Patent number: 8439561Abstract: Apparatus and method are provided for facilitating simulation of heated airflow exhaust of an electronics subsystem, electronics rack or row of electronics racks. The apparatus includes a thermal simulator, which includes an air-moving device and a fluid-to-air heat exchanger. The air-moving device establishes airflow from an air inlet to air outlet side of the thermal simulator tailored to correlate to heated airflow exhaust of the electronics subsystem, rack or row of racks being simulated. The fluid-to-air heat exchanger heats airflow through the thermal simulator, with temperature of airflow exhausting from the simulator being tailored to correlate to temperature of the heated airflow exhaust of the electronics subsystem, rack or row of racks being simulated. The apparatus further includes a fluid distribution apparatus, which includes a fluid distribution unit disposed separate from the fluid simulator and providing hot fluid to the fluid-to-air heat exchanger of the thermal simulator.Type: GrantFiled: September 22, 2010Date of Patent: May 14, 2013Assignee: International Business Machines CorporationInventors: Matthew R. Archibald, Richard C. Chu, Hendrik F. Hamann, Madhusudan K. Iyengar, Roger R. Schmidt