Abstract: A semiconductor device includes a semiconductor substrate, a top electrode in contact with a top surface of the semiconductor substrate, a bottom electrode in contact with a bottom surface of the semiconductor substrate, and an oxide film in contact with the top surface of the semiconductor substrate. The semiconductor substrate includes an element region and an outer peripheral region. The element region is a region where the top electrode is in contact with the top surface of the semiconductor substrate. The outer peripheral region is a region where the oxide film is in contact with the top surface of the semiconductor substrate, and is located between the element region and an outer peripheral end surface of the semiconductor substrate. The element region includes a semiconductor element connected between the top electrode and the bottom electrode. The outer peripheral region includes surface high-voltage-breakdown regions, deep high-voltage-breakdown regions, and a drift region.

Abstract: Provided is a vehicular refrigeration cycle unit interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and that exchanges heat between secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, respectively, the vehicular refrigeration cycle unit being provided with a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows, and the distance between the compressor and the evaporator is longer than the distance between the compressor and the condenser.

Abstract: Provided is a vehicular refrigeration cycle unit that is interposed between a vehicle-outside heat exchanger and a vehicle-inside heat exchanger and that exchanges heat between secondary refrigerants respectively flowing through the vehicle-outside heat exchanger and the vehicle-inside heat exchanger. The vehicular refrigeration cycle unit includes a refrigeration cycle provided in a device accommodation space inside a vehicle, the refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant having flammability and having a higher specific gravity than atmosphere flows sequentially, and a leakage sensor located below the compressor, the condenser, and the evaporator and is configured to detect the concentration of the primary refrigerant contained in air in the device accommodation space.

Abstract: A vehicular refrigeration cycle unit is a vehicular refrigeration cycle unit installed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger and exchanging heat between secondary refrigerants respectively flowing through the vehicle exterior heat exchanger and the vehicle interior heat exchanger, the vehicular refrigeration cycle unit including: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; an exterior flow passage through which the secondary refrigerant is circulated between the evaporator and the vehicle exterior heat exchanger; an interior flow passage through which the secondary refrigerant is circulated between the condenser and the vehicle interior heat exchanger; a pair of flow passage switching valves connecting the exterior flow passage and the interior flow passage to allow to switch the flow state of the second refrigerant between the exterior flow passage and the int

Abstract: To improve the accuracy of detecting a current flowing through an electric compressor after operation of the electric compressor, the electric compressor having a large change in temperature before and after operation. An inverter-integrated electric compressor (1) that compresses and discharges a refrigerant suctioned therein, includes an inverter device (2) provided with a circuit board (60) mounted with an inverter circuit (40), the inverter device (2) being integrally incorporated in an inverter case. The circuit board (60) is provided with a current detection circuit (30) that detects an input current flowing through the inverter circuit (40), and an offset correction circuit (20). The current detection circuit (30) includes a shunt resistor (32) that is serially connected to the inverter circuit (40) and detects a current, and a first amplifier (31) that amplifies and outputs a voltage appearing as a voltage drop in the shunt resistor (32).

Abstract: To improve the accuracy of detecting a current flowing through an electric compressor after operation of the electric compressor, the electric compressor having a large change in temperature before and after operation. An inverter-integrated electric compressor (1) that compresses and discharges a refrigerant suctioned therein, includes an inverter device (2) provided with a circuit board (60) mounted with an inverter circuit (40), the inverter device (2) being integrally incorporated in an inverter case. The circuit board (60) is provided with a current detection circuit (30) that detects an input current flowing through the inverter circuit (40), and an offset correction circuit (20). The current detection circuit (30) includes a shunt resistor (32) that is serially connected to the inverter circuit (40) and detects a current, and a first amplifier (31) that amplifies and outputs a voltage appearing as a voltage drop in the shunt resistor (32).

Abstract: A heat exchanger and a heat pump system capable of reducing the amount of a refrigerant that accumulates in an outdoor heat exchanger during heating operation, and of decreasing the appropriate amount of refrigerant during heating operation. A vehicle-external heat exchanger is provided with a hollow first header, a hollow second header provided facing the first header, and a plurality of tubes provided between and communicating with the first header and the second header. The first header is provided with a partition plate that divides the interior of the first header. A first opening formed on a partition plate side between the upper end of the first header and the partition plate. When functioning as an evaporator, the refrigerant is supplied from the lower part of the first header or of the second header, and the first opening serves an outflow port for the refrigerant.

Abstract: Provided is a vehicle steering apparatus capable of predicting failure while protecting a clutch device. The vehicle steering apparatus includes a turning device for turning steered wheels of a vehicle, and a steering device having a steering reaction force actuator for providing reaction force to assist user's steering of a steering wheel. A clutch device is provided between the steering device and the turning device to perform operation to mechanically cause a connection state or a disconnection state between the steering device and the turning device. Further, between the steering reaction force actuator and the clutch device, a mechanical fuse is arranged that twists and deforms by an input of an excessive load to prevent the load from being transmitted to the clutch device. A scribing line is drawn on the side surface portion of this mechanical fuse.

Abstract: To improve the accuracy of detecting a current flowing through an electric compressor after operation of the electric compressor, the electric compressor having a large change in temperature before and after operation. An inverter-integrated electric compressor (1) that compresses and discharges a refrigerant suctioned therein, includes an inverter device (2) provided with a circuit board (60) mounted with an inverter circuit (40), the inverter device (2) being integrally incorporated in an inverter case. The circuit board (60) is provided with a current detection circuit (30) that detects an input current flowing through the inverter circuit (40), and an offset correction circuit (20). The current detection circuit (30) includes a shunt resistor (32) that is serially connected to the inverter circuit (40) and detects a current, and a first amplifier (31) that amplifies and outputs a voltage appearing as a voltage drop in the shunt resistor (32).

Abstract: A camera (10) that includes: a sensor module (1) which measures radiation data; heat radiation parts (14-1, 14-2) which radiate heat generated as the sensor module (1) is cooled; an electrical apparatus (20); and fans (15-1, 15-2) which generate a flow of a first fluid for cooling the heat radiation parts (14-1, 14-2). The camera further has a first passage (41) through which the first fluid flows, a second passage (43) through which a second fluid for cooling the electrical apparatus (20) flows, and a merging part (44) which suctions the second fluid from the second passage (43) into the first passage (41) by means of the flow of the first fluid. Such a camera (10) can be made more compact than other cameras which further include a fan for circulating the second fluid through the second passage (43).

Abstract: An objective of the present invention is to provide a heat exchanger and a heat pump system which are capable of reducing the amount of a refrigerant that accumulates in an outdoor heat exchanger during heating operation, and of decreasing the appropriate amount of the refrigerant during heating operation. A vehicle-external heat exchanger is provided with a hollow first header, a hollow second header provided facing the first header, and a plurality of tubes provided between the first header and the second header and communicating with the first header and the second header. The first header is provided with a partition plate that divides the interior of the first header. The first header is provided with a first opening formed on a partition plate side between the upper end of the first header and the partition plate.

Abstract: A method for obtaining high-purity phosphorus pentafluoride (PF5), which is industrially useful in the fields of semiconductors and batteries, from PF5 containing a gas mixture of HCl, HF, and so on. Specifically, provided is a process for purifying phosphorus pentafluoride including (1) an immobilization step in which phosphorus pentafluoride containing a mixture is brought into contact with a metal fluoride (MFn; M is an n-valent metal) having a specific surface area of 1.0 m2/g or more at 40° to 150° C. to immobilize phosphorus pentafluoride in the form of a hexafluorophosphate (M(PF6)n), (2) a separation step in which the mixture remaining in the gas phase is expelled out of the reaction system to separate the mixture from the hexafluorophosphate, and (3) a heat-decomposition step in which the hexafluorophosphate freed of the mixture is heated at 150° to 400° C. under a pressure of ?0.1 to 0.1 MPa·G to give phosphorus pentafluoride.

Abstract: Provided is a vehicle steering apparatus capable of predicting failure while protecting a clutch device. The vehicle steering apparatus includes a turning device for turning steered wheels of a vehicle, and a steering device having a steering reaction force actuator for providing reaction force to assist user's steering of a steering wheel. A clutch device is provided between the steering device and the turning device to perform operation to mechanically cause a connection state or a disconnection state between the steering device and the turning device. Further, between the steering reaction force actuator and the clutch device, a mechanical fuse is arranged that twists and deforms by an input of an excessive load to prevent the load from being transmitted to the clutch device. A scribing line is drawn on the side surface portion of this mechanical fuse.

Abstract: A method for obtaining high-purity phosphorus pentafluoride (PF5), which is industrially useful in the fields of semiconductors and batteries, from PF5 containing a gas mixture of HCl, HF, and so on. Specifically, provided is a process for purifying phosphorus pentafluoride including (1) an immobilization step in which phosphorus pentafluoride containing a mixture is brought into contact with a metal fluoride (MFn; M is an n-valent metal) having a specific surface area of 1.0 m2/g or more at 40° to 150° C. to immobilize phosphorus pentafluoride in the form of a hexafluorophosphate (M(PF6)n), (2) a separation step in which the mixture remaining in the gas phase is expelled out of the reaction system to separate the mixture from the hexafluorophosphate, and (3) a heat-decomposition step in which the hexafluorophosphate freed of the mixture is heated at 150° to 400° C. under a pressure of ?0.1 to 0.1 MPa·G to give phosphorus pentafluoride.

Abstract: A treatment process of PF5 including an absorption step for inducing absorption of PF5 by an acidic solution containing an acid to obtain a solution containing PF5A?, an adjustment step to adjust concentration of HCl in the solution, and a thermolysis step for heating the solution containing PF5A? ions obtained in the absorption step or the adjustment step to decompose the solution to an acidic mixture containing H3PO4 and HF.

Abstract: A camera (10) according to the present invention includes: a sensor module (1) which measures radiation data; heat radiation parts (14-1, 14-2) which radiate heat generated as the sensor module (1) is cooled; an electrical apparatus (20); and fans (15-1, 15-2) which generate a flow of a first fluid for cooling the heat radiation parts (14-1, 14-2). The camera further has a first passage (41) through which the first fluid flows, a second passage (43) through which a second fluid for cooling the electrical apparatus (20) flows, and a merging part (44) which suctions the second fluid from the second passage (43) into the first passage (41) by means of the flow of the first fluid. Such a camera (10) can be made more compact than other cameras which further include a fan for circulating the second fluid through the second passage (43).

Abstract: A motor fan 1 of the present invention includes: an impeller 7b that forms an air flow; an electric motor 6 that rotationally drives the impeller 7b; a shroud 10 including a cylindrical casing 16 that covers an outer periphery of the impeller 7b, and through which the air flow passes, and a base 11 that projects from a periphery of the casing 16; a control unit 40 that controls rotation of the electric motor 6 and is arranged on a discharge side of the base 11; and a heat sink 50 that dissipates heat from heat dissipation pins 52 to suppress heat generation of the control unit 40, wherein the heat dissipation pins 52 are exposed on a suction side in the heat sink 50.

Abstract: Provided is a hot-water heater manufacturing method capable of obtaining stable heat exchange characteristics by applying a moderate contact surface pressure between heating-medium circulating tubes and heater members that constitute a hot-water heater, and capable of improving the reliability by enhancing the joint strength between the heating-medium circulating tubes, with a simple and easy manufacturing process.

Abstract: An object of the present invention is to provide a small, lightweight, and inexpensive heat medium heating apparatus in which a flat tube heat exchanger and a PTC heater are laminated in a multi-layered manner to reduce a thermal contact resistance thereamong, heat transfer performance is improved, and also in which assembling of the flat tube heat exchanger and the PTC heater is made easier.

Abstract: A refrigerant evaporator is provided in which a liquid refrigerant can be evenly distributed to a plurality of refrigerant tubes connected to first and second tanks in a U-turn block to improve heat-exchange performance. In the refrigerant evaporator, one of a plurality of blocks into which a refrigerant supply channel is divided is a U-turn block where a refrigerant flows into one of the first and second tank portions of an upper tank in a direction along a partition wall, flows into the other tank portion, and is distributed and flows from the first and second tank portions into a plurality of refrigerant tubes. The partition wall partitioning the first and second tank portions of the upper tank has a plurality of refrigerant-distributing holes arranged in a longitudinal direction of the partition wall in the U-turn block so that the first tank portion communicates with the second tank portion.