Abstract: An electric driving device and an electric power steering device. An electric driving device includes a motor and an electronic control unit that controls rotation of the motor. The electronic control unit includes a first circuit board, a second circuit board, a second housing, a lid, and an inter-board connector. The second circuit board includes a control circuit that controls an electric current supplied to a transistor of the first circuit board. The second housing accommodates the second circuit board and has a first through hole passing therethrough in the axial direction. The lid covers the second housing. The inter-board connector connects the second circuit board disposed on the anti-load side of the second housing to the first circuit board disposed on the load side of the second housing. The inter-board connector is disposed in the first through hole.

Abstract: To provide an electric driving device and an electric power steering device that have a smaller size in the axial direction and suppress stress on a circuit board due to electrical connection between a motor and the circuit board if a terminal block is provided. An electric driving device includes a motor and an electronic control unit that controls rotation of the motor. The electronic control unit includes a first circuit board, a first heat sink, a second heat sink, and a terminal block. The second heat sink sandwiches the first circuit board between it and the first heat sink. The terminal block is fixed to the side surface of the second heat sink and electrically connects motor coil wiring to the first circuit board.

Abstract: An electric driving device and an electric power steering device. An electric driving device includes a motor and an electronic control unit that controls rotation of the motor. The electronic control unit includes a first circuit board, a second circuit board, a second housing, a lid, and an inter-board connector. The second circuit board includes a control circuit that controls an electric current supplied to a transistor of the first circuit board. The second housing accommodates the second circuit board and has a first through hole passing therethrough in the axial direction. The lid covers the second housing. The inter-board connector connects the second circuit board disposed on the anti-load side of the second housing to the first circuit board disposed on the load side of the second housing. The inter-board connector is disposed in the first through hole.

Abstract: To provide an electric driving device and an electric power steering device with a smaller area of power supply wiring in a circuit board and higher reliability of the circuit board. An electric driving device includes a motor and an electronic control unit that controls rotation of the motor. The electronic control unit includes a first circuit board, a second circuit board, a power supply wiring module, and a heat sink. The first circuit board is provided with a transistor that outputs an electric current to excite a motor coil. The second circuit board includes a control circuit that controls an electric current supplied to the transistor. The power supply wiring module is configured by molding, with resin, a choke coil for noise removal, a capacitor, and wiring that supplies electric power to at least one of the first circuit board and the second circuit board. The heat sink is sandwiched between the power supply wiring module and the second circuit board.

Abstract: An attachment structure includes expansion valves used in a vehicle, and a housing to which the expansion valves are attached. The housing includes a flow path through which heat medium circulating in a heat pump cycle of an air conditioner of the vehicle flows, and the flow path is opened and closed by the expansion valves.

Abstract: A plurality of components of a refrigeration cycle are connected to a connection module. The connection module includes a body having a refrigerant flow path that constitutes a part of a refrigerant flow path in the refrigeration cycle. The refrigerant flow path includes a high-temperature-side flow path and a low-temperature-side flow path. The high-temperature-side flow path has a connection port to which a high-temperature-side component of the plurality of components, through which a high-pressure refrigerant of the refrigeration cycle flows, is connectable. The low-temperature-side flow path has a connection port to which a low-temperature-side component of the plurality of components, through which a refrigerant having a lower temperature than the high-pressure refrigerant flows, is connectable.

Abstract: An electronic control device includes: a circuit board including a substrate and an electrolytic capacitor connected to the substrate; a heat sink including a recess that houses the electrolytic capacitor; and heat dissipation material provided in the recess. The electrolytic capacitor has an end surface facing a bottom surface of the recess, and the heat dissipation material is in contact with the end surface and the bottom surface.

Abstract: Provided is a method for producing a sintered body that forms a rare-earth permanent magnet, has a single sintered structure and an arbitrary shape, and has easy magnetization axis orientations of different directions applied to the magnet material particles in a plurality of arbitrary regions. This method forms a three-dimensional first molded article from a composite material formed by mixing a resin material and magnet material particles containing a rare-earth substance. The first molded article is then subjected to a deforming force and a second molded article is formed in which the orientation direction of the easy magnetization axis of the magnet material particles in at least the one section of the horizontal cross-section is changed to a direction which differs from the orientation direction of the first molded article. The second molded article is heated to a sintering temperature and kept at the temperature for a period of time.

Abstract: An electric drive device and an electric power steering device that reduce temperature increase of a magnetic sensor are provided. The electric drive device includes: an electric motor; an electronic control device including a magnet at an anti-load side end of a shaft to control drive of the electric motor, and a circuit board on the anti-load side of the shaft on an extended line in an axial direction of the shaft; first coil wiring connecting the first coil groups of the electric motor to the circuit board; and second coil wiring connecting the second coil groups of the electric motor to the circuit board. Each of the first and second coil wiring includes a first portion projecting in a direction intersecting the axial direction of the shaft to the outside of the housing, and a second portion projecting outside the housing from the first portion toward the circuit board.

Abstract: An electric drive device and an electric power steering device that reduce temperature increase of a magnetic sensor are provided. The electric drive device includes: an electric motor; an electronic control device including a magnet at an anti-load side end of a shaft to control drive of the electric motor, and a circuit board on the anti-load side of the shaft on an extended line in an axial direction of the shaft; first coil wiring connecting the first coil groups of the electric motor to the circuit board; and second coil wiring connecting the second coil groups of the electric motor to the circuit board. Each of the first and second coil wiring includes a first portion projecting in a direction intersecting the axial direction of the shaft to the outside of the housing, and a second portion projecting outside the housing from the first portion toward the circuit board.

Abstract: An electronic control device includes: a circuit board including a substrate and an electrolytic capacitor connected to the substrate; a heat sink including a recess that houses the electrolytic capacitor; and heat dissipation material provided in the recess. The electrolytic capacitor has an end surface facing a bottom surface of the recess, and the heat dissipation material is in contact with the end surface and the bottom surface.

Abstract: An assembly structure of a sensor includes: a shaft; a housing including: a first cylindrical part; and a first annular plate that is an annular plate, an outer periphery of which is connected to an end of the first cylindrical part, and that is orthogonal to a rotation axis of the shaft; a magnet accommodated inside the first cylindrical part in a radial direction and fixed to an end of the shaft; a sensor configured to detect rotation of the magnet; and a holder that is fixed to the first annular plate and that holds the sensor such that the sensor is disposed at a predetermined position with respect to the magnet.

Abstract: A refrigerant evaporator includes: a first heat exchange part in which refrigerant flows to exchange heat with fluid to be cooled; a second heat exchange part arranged to oppose the first heat exchange part; a first tank arranged below the first heat exchange part to distribute the refrigerant to the first heat exchange part; a second tank arranged below the second heat exchange part to collect the refrigerant flowing through the second heat exchange part; and a third tank joined to the first tank and the second tank by brazing. A projection part is formed at one of joint portions between the first tank and the third tank. An insertion part is formed at the other of the joint portions between the first tank and the third tank, and the projection part is inserted in the insertion part.

Abstract: A substrate provided in proximity to a case for improving heat radiation, and maintaining electrical insulation between the substrate and the case even when the substrate is warped, in the substrate having electronic parts mounted thereon and a case for housing the substrate. A case body of the case has a substrate placement surface for placing the substrate, the substrate placement surface is provided with a protruding portion protruding therefrom, and the substrate is fixed on the substrate placement surface, via a thermal interface material disposed on the substrate placement surface from a periphery of the protruding portion.

Abstract: A substrate provided in proximity to a case for improving heat radiation, and maintaining electrical insulation between the substrate and the case even when the substrate is warped, in the substrate having electronic parts mounted thereon and a case for housing the substrate. A case body of the case has a substrate placement surface for placing the substrate, the substrate placement surface is provided with a protruding portion protruding therefrom, and the substrate is fixed on the substrate placement surface, via a thermal interface material disposed on the substrate placement surface from a periphery of the protruding portion.

Abstract: A connector housing includes a hole having a minimum size that a lead section of a connector terminal to penetrate, and a guide wall which is formed along an outer peripheral of the hole, and is protruded in a direction which a lead section protrudes from the connector housing to a bending section of the lead section, wherein, by which inner walls of the guide wall is mutually and directly in contact with side surfaces of the lead section over a height near a top end side of the lead section in a bending section of the lead section from an outer peripheral of the hole, a sealing structure is formed from the bending section of the lead section to an interior of the connector housing.

Abstract: Multipolar lead parts having plural leads and a retaining member, wherein the retaining member includes a cylindrical portion so as to cover peripheries of the leads, the cylindrical portion facing in a board direction; wherein the leads each include an upper-side board coupling portion and a lower-side board coupling portion; wherein the lower-side board coupling portion comprises a forward protruding portion that the other end side of each of the leads is bent in a direction orthogonal to an arrangement face of the leads, a vertical portion extending downward from a front end, a solder coupling portion extending backward from a lower end, and a rising portion extending upward from the solder coupling portion; and wherein said rising portion is formed as to have an obtuse angle from said solder coupling portion regardless of a bending angle of said vertical portion with respect to said solder coupling portion.

Abstract: Provided is a method for producing a sintered body that forms a rare-earth permanent magnet, has a single sintered structure and an arbitrary shape, and has easy magnetization axis orientations of different directions applied to the magnet material particles in a plurality of arbitrary regions. This method forms a three-dimensional first molded article from a composite material formed by mixing a resin material and magnet material particles containing a rare-earth substance. The first molded article is then subjected to a deforming force and a second molded article is formed in which the orientation direction of the easy magnetization axis of the magnet material particles in at least the one section of the horizontal cross-section is changed to a direction which differs from the orientation direction of the first molded article. The second molded article is heated to a sintering temperature and kept at the temperature for a period of time.

Abstract: A refrigerant evaporator includes: a first heat exchange part in which refrigerant flows to exchange heat with fluid to be cooled; a second heat exchange part arranged to oppose the first heat exchange part; a first tank arranged below the first heat exchange part to distribute the refrigerant to the first heat exchange part; a second tank arranged below the second heat exchange part to collect the refrigerant flowing through the second heat exchange part; and a third tank joined to the first tank and the second tank by brazing. A projection part is formed at one of joint portions between the first tank and the third tank. An insertion part is formed at the other of the joint portions between the first tank and the third tank, and the projection part is inserted in the insertion part.