Patent application number | Description | Published |
20080316774 | POWER SUPPLY UNIT - A power supply unit that allows a main battery and an auxiliary battery to be charged by a system power supply is disclosed. The first and second bridge circuits of the power supply unit are each formed of four switching elements. The transformer of the power supply unit has a primary winding connected to the first bridge circuit, and a secondary winding connected to the second bridge circuit. The DC/DC converter of the power supply unit allows the auxiliary battery to be connected to the first and second circuits. The controller of the power supply unit controls the switching elements of the first bridge circuit, the switching elements of the second bridge circuit, and the switching element of the DC/DC converter such that power that has been charged to the main battery is output as an AC voltage having voltage and frequency for electric appliances. | 12-25-2008 |
20100201204 | NON-CONTACT POWER TRANSMISSION APPARATUS - A non-contact power transmission apparatus is disclosed. The non-contact power transmission apparatus includes an AC power source, a primary coil, a primary side resonance coil, a secondary side resonance coil, a secondary coil, a voltage measuring section, and a distance calculating section. AC voltage of the AC power source is applied to the primary coil. A load is connected to the secondary coil. The voltage measuring section measures the voltage of the primary coil. The distance calculating section calculates the distance between the primary side resonance coil and the secondary side resonance coil based on the voltage measured by the voltage measuring section. | 08-12-2010 |
20100201316 | NON-CONTACT POWER TRANSMISSION APPARATUS - A non-contact power transmission apparatus having an AC power source and a resonance system is disclosed. The resonance system has a primary coil connected to the AC power source, a primary side resonance coil, a secondary side resonance coil, a secondary coil, and a load connected to the secondary coil. The primary side resonance coil is separated from the primary coil in an axial direction by a first distance, and the secondary coil is separated from the secondary side resonance coil in the axial direction by a second distance. At least one of the first distance and the second distance is adjusted to be a distance that is determined in advance in accordance with the impedance of the load so that the power transmission efficiency is maintained at a proper value. | 08-12-2010 |
20100246139 | SEMICONDUCTOR APPARATUS AND HEAT CONDUCTIVE SHEET - A semiconductor apparatus is comprising a circuit board with a semiconductor device surface-mounted on one surface thereof. A heatsink is disposed and fixed with a connection member and separated with a predetermined distance on one side of the circuit board opposite to the surface where the semiconductor device is mounted. A heat conductive sheet is provided between the circuit board and the heatsink and thermally connecting the semiconductor device and the heatsink through the circuit board. The heat conductive sheet is constituted as a laminate of a first member and a second member and one of the first and second members is a ceramic board whereas the other is a resin sheet material having highly heat conductive fillers mixed therein. | 09-30-2010 |
20110227421 | NON-CONTACT POWER TRANSMISSION APPARATUS AND DESIGN METHOD - A non-contact power transmission apparatus is disclosed. The non-contact power transmission apparatus includes an alternating-current power source and a resonant system. The resonant system includes a primary coil connected to the alternating-current power source, a primary-side resonance coil, a secondary-side resonance coil, and a secondary coil is connected to a load. The apparatus also has a first capacitor and a second capacitor. A first resonant frequency, which is a resonant frequency of the primary-side resonance coil and the first capacitor, and a second resonant frequency, which is a resonant frequency of the secondary-side resonance coil and the second capacitor, are set to be equal to each other. The frequency of an alternating voltage of the alternating-current power source is set to match with the first resonant frequency and the second resonant frequency. | 09-22-2011 |
20110241440 | NON-CONTACT POWER TRANSMISSION APPARATUS AND POWER TRANSMISSION METHOD USING A NON-CONTACT POWER TRANSMISSION APPARATUS - Disclosed is a non-contact power transmission apparatus provided with an AC power source and a resonant system. The resonant system has a primary coil that is connected with the AC power source, a primary-side resonance coil, a secondary-side resonance coil, a secondary coil and a load that is connected with the secondary coil. In addition, the non-contact power transmission apparatus is provided with a state detection unit and a variable-impedance circuit. The state detection unit detects the state of the resonant system. The variable-impedance circuit is constructed so as to adjust its own impedance in accordance with the state of the resonant system detected by the state detection unit, in such a way that the input impedance and the output impedance at the resonant frequency of the resonant system are matching. | 10-06-2011 |
20110298294 | NON-CONTACT POWER TRANSMISSION DEVICE AND DESIGN METHOD THEREOF - A non-contact power transmission device is disclosed. The resonant system includes a primary coil connected to the AC power source, a primary resonance coil, a secondary resonance coil, and a secondary coil is connected to the load. When the relationship between an input impedance of the resonant system and a frequency of an AC voltage of the AC power source is shown in a graph, the frequency of the AC voltage of the AC power source is set between a first frequency at which the input impedance has a local maximum value, and a second frequency that is greater than the first frequency and at which the input impedance has a local minimum value. | 12-08-2011 |
20120025761 | RESONANCE TYPE NON-CONTACT POWER SUPPLY SYSTEM FOR VEHICLE AND ELECTRIC VEHICLE - A resonance type non-contact power supply system is provided that includes power supplying equipment and an electric vehicle. The power supply equipment includes an alternating-current power source and a primary-side resonance coil for receiving power from the alternating-current power source. The electric vehicle includes power receiving equipment and a vehicle height control device mounted on the electric vehicle. The power receiving equipment includes a secondary-side resonance coil that receives power from the primary-side resonance coil, a rectifier that rectifies the power received by the secondary-side resonance coil, and an electrical storage device, to which the power rectified by the rectifier is supplied. A resonance system that includes the primary-side resonance coil and the secondary-side resonance coil is configured such that impedance thereof is adjusted by the use of the vehicle height control device when the electrical storage device is charged. | 02-02-2012 |
20120104998 | NON-CONTACT POWER TRANSMISSION DEVICE - A non-contact power transmission device includes an alternating current power supply, a resonant system, a load, an impedance measuring section and an analyzing section. The resonant system has a primary coil connected to the alternating current power supply, a primary-side resonant coil, a secondary-side resonant coil and a secondary coil. The load is connected to the secondary coil. The impedance measuring section can measure the input impedance of the resonant system. The analyzing section analyzes the measurement results obtained from the impedance measuring section. | 05-03-2012 |
20120178313 | SUBSTRATE CONNECTION STRUCTURE - A substrate connection structure includes a first substrate, a second substrate, a first connection terminal plate, a second connection terminal plate, and a fastening member. The first connection terminal plate extends away from the first substrate and includes a flat portion. The second connection terminal plate extends away from the second substrate and includes a flat portion. At least one of the flat portions includes a screw insertion portion. The fastening member fastens the first connection terminal plate and the second connection terminal plate through the screw insertion portion in a state in which the flat portions are in contact with each other. | 07-12-2012 |
20120230058 | NON-CONTACT POWER TRANSMISSION APPARATUS - A non-contact power transmission apparatus includes a high-frequency converting section, which converts input voltage to high-frequency voltage and outputs it, a primary coil, which receives high-frequency voltage from the high-frequency converting section, and a secondary coil, which receives electric power from the primary coil. The non-contact power transmission apparatus further includes a load to which the electric power received by the secondary coil is supplied, a rectifier located between the secondary coil and the load, and an output adjusting section, which supplies, as pulses, output voltage to the high-frequency converting section. The output adjusting section is configured to increase or reduce output to the load by adjusting a duty cycle of the pulse output. | 09-13-2012 |
20120242286 | RESONANCE TYPE NON-CONTACT CHARGING DEVICE - A resonance type non-contact charging device includes a high frequency power source, a primary side resonant coil, a secondary side resonant coil, a charger, a secondary battery, and a stop control unit. The primary side resonant coil receives supply of high frequency electric power from the high frequency power source. The secondary side resonant coil is arranged apart from the primary side resonant coil in a non-contact manner. The secondary side resonant coil receives electric power from the primary side resonant coil through magnetic field resonance between the primary side resonant coil and the secondary side resonant coil. The charger receives supply of high frequency electric power from the secondary side resonant coil. The secondary battery is connected to the charger. The stop control unit stops the high frequency power source before stopping the charger when charging is to be stopped. | 09-27-2012 |
20120242287 | RESONANCE TYPE NON-CONTACT CHARGING DEVICE - A resonance type non-contact charging device includes a high frequency power source, a primary side resonant coil, a secondary side resonant coil, a charger, a secondary battery, and a stop control unit. The primary side resonant coil receives supply of high frequency electric power from the high frequency power source. The secondary side resonant coil is arranged apart from the primary side resonant coil in a non-contact manner. The secondary side resonant coil receives electric power from the primary side resonant coil through magnetic field resonance between the primary side resonant coil and the secondary side resonant coil. The charger receives supply of high frequency electric power from the secondary side resonant coil. The secondary battery is connected to the charger. The stop control unit stops the high frequency power source before stopping the charger when charging is to be stopped. | 09-27-2012 |
20130057082 | NON-CONTACT POWER RECEPTION SYSTEM AND NON-CONTACT POWER TRANSMISSION SYSTEM - A non-contact power reception system comprising movable body equipment including a secondary-side coil for receiving, in a non-contact manner, electric power from a primary-side coil, which receives electric power from an AC power source, a rectifier, which rectifies electric power received by the secondary-side coil, and an electrical storage device, which is connected to rectifier, wherein the movable body equipment includes a matching unit located between the secondary-side coil and the rectifier, and the non-contact power reception system is configured to bring the matching unit into a mismatch state when electric power is being received from the primary-side coil in a state in which the movable body equipment should refuse power reception. | 03-07-2013 |
20130057207 | POWER FEEDING SYSTEM AND VEHICLE - A power feeding system is provided, in which a detected value of reflected power at a power supply device in a power feeding installation is sent from the power feeding installation to a vehicle via a first communication device, the vehicle has an impedance matching device for adjusting an impedance at a resonance system that is constituted of a power transmission resonator, including a primary self-resonant coil and a primary coil in the power feeding installation, and a power receiving resonator, including a secondary self-resonant coil and a secondary coil in the vehicle, and the impedance matching device is controlled based on the detected value of the reflected power at the power supply device, which has been received from the power feeding installation. | 03-07-2013 |
20130063085 | RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM - Movable body equipment is provided with: a secondary-side resonance coil, which receives power from a primary-side resonance coil of power supply equipment; a rectifier, which rectifies the power received by the secondary-side resonance coil; and a secondary battery, to which to which the power rectified by the rectifier is supplied. A resonance-type non-contact power supply system is provided with: state of charge detection units, which detect the state of charge of the secondary battery; and an impedance estimation unit, which estimates an impedance estimation value for the secondary battery on the basis of the state of charge of the secondary battery. When the absolute value of the difference between the impedance estimation value and the current impedance value of the secondary battery exceeds a threshold, a determination unit determines that a foreign body is present between the primary-side resonance coil and the secondary-side resonance coil. | 03-14-2013 |
20130119781 | RESONANCE TYPE NON-CONTACT POWER SUPPLY SYSTEM - A power supplying equipment includes an alternating-current power source and a primary-side resonance coil. A movable body equipment includes a secondary-side resonance coil a rectifier, and a secondary battery to which the power rectified by the rectifier is supplied. The power supplying equipment further includes a primary matching unit provided between the alternating-current power source and the primary-side resonance coil, and a primary matching unit adjusting section for adjusting the primary matching unit. The primary matching unit adjusting section adjusts the primary matching unit only at times other than when detecting the distance between the primary-side resonance coil and the secondary-side resonance coil. | 05-16-2013 |
20130193913 | RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM, AND ADJUSTMENT METHOD FOR MATCHING UNIT DURING CHARGING OF RESONANCE-TYPE NON-CONTACT POWER SUPPLY SYSTEM - Power supply equipment ( | 08-01-2013 |
Patent application number | Description | Published |
20130129546 | COMPRESSOR - A compressor includes a valve base plate, which is arranged between a suction chamber and a compression chamber and has a suction port. The valve base plate includes a sealing surface, a recessed groove, a receiving surface, and a support surface. The sealing surface is flush with a fixing surface and contacts the valve portion in an annular manner. The recessed groove is located at an outer side of the sealing surface and recessed with respect to the fixing surface. The recessed groove includes a bottom portion and separates an edge portion of the valve portion from the bottom portion. The receiving surface is flush with the fixing surface and capable of contacting a distal zone of the valve portion. The support surface is flush with the fixing surface and capable of contacting a middle zone located at an inner side of the sealing surface of the valve portion. | 05-23-2013 |
20130236342 | COMPRESSOR - A compressor has suction reed valves each of which includes a fixation portion fixed to the valve base plate, a basal portion that extends from the fixation portion and is separable from the plate, and a valve flap extending from the basal portion toward the distal end to selectively open and close the suction port. Each suction port has a shape elongated in the width direction, which is orthogonal to the longitudinal direction. The width of the basal portion is greater than that of the suction port. Each valve flap includes an opening-closing portion facing the corresponding suction port and stoppers, which project from the ends in the width direction. The side edges in the width direction are continuous from the stoppers to the basal portion to gradually approach the suction port. The cylinder block has pairs of recessed retainers. The stoppers contact the retainers. | 09-12-2013 |
20140341766 | COMPRESSOR - A compressor has therein a suction chamber into which refrigerant gas is introduced, a compression chamber in which the refrigerant gas in the suction chamber is introduced and compressed, and a discharge chamber into which the compressed refrigerant gas is discharged from the compression chamber. The suction chamber and the discharge chamber are formed adjacent to each other while being separated by a partition wall. At least one surface of the partition wall is provided with a thermal insulator which is formed by curing a thermal insulation coating composition. The thermal insulator includes hollow beads and one or more binder resin selected from the group consisting of epoxy resin, polyamide-imide resin, phenolic resin, and polyimide resin. | 11-20-2014 |
20150023812 | VARIABLE DISPLACEMENT COMPRESSOR WITH SINGLE-HEAD PISTONS - The muffler has a muffler chamber formed in a rear housing, an inlet channel that provides communication between the discharge chamber and the muffler chamber, and an outlet channel that provides communication between the muffler chamber and the outlet port. The muffler chamber has a first end surface positioned on one end side of the muffler chamber, a second end surface positioned on the other end side of the muffler chamber, and an inner peripheral surface having a cylindrical shape that is positioned between the first end surface and the second end surface and extends from the discharge chamber toward the other end side. The muffler chamber is positioned between an annular wall and an outer peripheral wall. The inlet channel opens in the first end surface. The outlet channel opens in the inner peripheral surface at a position spaced apart from the second end surface. | 01-22-2015 |