Abstract: Provided is a pressure control apparatus in which workability in assembly of a body, a spool valve, a retainer, and an elastic member is improved and a high degree of freedom in a design of installation of the spool valve is obtained. A pressure control apparatus includes: a body having an opening portion penetrating a wall portion which demarcates a spool hole; a spool valve that is disposed displaceably in the spool hole; a plate-shaped retainer disposed at one end side of the spool valve in an axial direction in the spool hole; and an elastic member 6 disposed between the spool valve in the spool hole and the retainer. The retainer has a wide portion and a narrow portion. The opening portion has a first opening portion that allows the retainer to pass through and a second opening portion that inhibits the retainer from passing through.

Abstract: A pressure control device capable of preventing a body and a filter unit which are assembled from being disassembled unintentionally is provided. A pressure control device includes: a body, which has a flow path that includes a groove and a widening portion that is connected to the groove and has a width larger than the width of the groove to a bottom portion of the groove; and a filter unit which is accommodated along a depth direction of the widening portion and captures foreign matter mixed in a fluid passing through the flow path. The filter unit has a detachment prevention portion which prevents a detachment form the widening portion.

Abstract: A pressure control device reliably preventing foreign matter from flowing beyond a filter unit to the downstream side. The pressure control device includes a body and a cylindrical filter unit. The body has a flow path including a groove and a widened part. A depth of the groove from an upper surface to a bottom is a first depth. The widened part is connected to the groove, extends from the upper surface to the bottom, and has a width larger than a width of the groove. The filter unit is housed along a depth direction of the widened part to capture foreign matter mixed in a fluid passing through the flow path. A depth of the widened part from the upper surface to a bottom surface is a second depth larger than the first depth. The widened part includes a receiving part that a part of the filter unit enters.

Abstract: The stator of the stator unit has a stator core in an annular shape along a circumferential direction, an insulator attached to the stator core, and coils attached to the stator core via the insulator. The bus bar unit of the stator unit has a bus bar holder for holding the bus bar on one side in an axial direction of the insulator. The bus bar has a terminal part extending closer to the one side in the axial direction than the bus bar holder and a coil connection part connected to a coil lead wire drawn from the coils to the one side in the axial direction. One of the bus bar holder and the insulator has claw parts protruding in the radial direction, and the other of them has a hooking part to which the claw parts are hooked and fixed in the axial direction.

Abstract: The sensor unit (40) includes a case (41) having a bottom surface (41a); a sensor element (42) including a sensor element main body (421) and a power supply terminal (42a); and a power supply bus bar (44) including an inclined part (44d) and a first connection part (44a). An end on one side of the power supply terminal (42a) is electrically connected to the sensor element main body (421). In a state where the power supply terminal (42a) passes through the first connection part (44a), an end on the other side of the power supply terminal (42a) is in contact with the inclined part (44d) and the first connection part (44a) is in contact with the power supply terminal (42a), so that movement of the power supply terminal (42a) in a direction away from the bottom surface (41a) is restricted.

Abstract: The sensor unit (40) includes a case (41) having a bottom surface (41a); a sensor element (42) including a sensor element main body (421) and a power supply terminal (42a); and a power supply bus bar (44) including an inclined part (44d). An end on one side of the power supply terminal (42a) is electrically connected to the sensor element main body (421). The case (41) further includes a terminal passage part (412a). In a state where the power supply terminal (42a) passes through the terminal passage part (412a), an end on the other side of the power supply terminal (42a) is in contact with the inclined part (44d) and the terminal passage part (412a) is in contact with a side surface of the power supply terminal (42a), so that movement of the power supply terminal (42a) in a direction away from the bottom surface (41a) is restricted.

Abstract: One aspect of an electric actuator of the disclosure includes: a motor having a motor shaft rotating about a central axis; a speed reduction mechanism connected to a portion on one side in an axial direction of the motor shaft; a case accommodating the motor and the speed reduction mechanism; an output part to which rotation of the motor shaft is transmitted via the speed reduction mechanism; a rotation detector having a rotation sensor detecting rotation of the output part; and a wiring member electrically connected with the rotation sensor. The case has a first concave part located on an outer surface of the case. One end part of the wiring member penetrates the case from inside the case and protrudes inside the first concave part. The rotation sensor is located inside the first concave part and connected with one end part of the wiring member.

Abstract: A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a cylindrical first inner wall part having a first step part extending toward the outer side in the radial direction; and a cylindrical second inner wall part having a second step part extending toward the outer side in the radial direction. A first cylindrical part has a first flange part. The outer diameter of the first flange part is larger than the inner diameter of the first inner wall part and smaller than the inner diameter of the second inner wall part. A circumferential end part of the first flange part contacts the second step part. The lid is non-magnetic, and a circumferential edge part is held between the first step part and the first flange part.

Abstract: A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a first inner wall part expanding toward the outer side in the radial direction on an inner wall; and a first caulking part extending from the rear side end. The first inner wall part has a first step part extending toward the outer side in the radial direction at an end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part. The first flange part contacts the first step part with an end surface on the other side in the axial direction. The first caulking part is bent toward the inner side in the radial direction to contact a circumferential edge part of the lid.

Abstract: A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening that opens on the rear side; and a first inner wall part expanding in a cylindrical shape on the outer side in the radial direction on an inner wall on the rear side. The first inner wall part has a first step part at the end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part on the rear side. The first flange part has a hole penetrating in the axial direction. A second space, which communicates a second through hole with the hole when the plunger has moved to a retreat position, is provided between an inner surface of the lid and the plunger and the yoke.

Abstract: An electric actuator includes: a motor; a first case accommodating the motor; a second case located on one side in an axial direction of the first case; a bearing holder fixed to the first case; and a first bearing held by the bearing holder. The first case has a wall part covering the other side in the axial direction of a stator and having a through hole. The bearing holder has: a holder cylindrical part holding the first bearing and inserted into the through hole; and a holder flange part fixed to the wall part. An inner diameter of the through hole is larger than an outer diameter of the holder cylindrical part. At least a part of a radially outer surface of the holder cylindrical part in a circumferential direction is located in a position radially inside and away from a radially inner surface of the through hole.

Abstract: A spool valve includes a valve portion that opens and closes a portion between an input port and an output port and a radial-direction-position changing portion provided in an outer lateral surface of the valve portion in a radial direction. When a first value is equivalent to or larger than a threshold that is larger than 0, the portion between the input port and the output port are opened to permit a flow of the oil inside the first connection oil passage, and when the first value is smaller than the threshold, the portion is closed to block the flow of the oil inside the first connection oil passage. The radial-direction-position changing portion extends in the axial direction, and a position thereof in the radial direction changes inwardly from a first side towards a second side in the axial direction.

Abstract: An electric actuator includes a motor, a speed reduction mechanism, a case, an output portion, a first board, a rotation detection device that detects rotation of the output portion, a connector portion, a first wiring member electrically connected to electrical wiring via the connector portion, and a second wiring member electrically connected to the rotation detection device. The case includes a first case and a second case. The first board is accommodated in the first case. The rotation detection device is accommodated in the second case. The first wiring member includes a first connecting portion held in the first case. The second wiring member includes a second connecting portion held in the second case. The first connecting portion is exposed on one side in the axial direction of the first case. The second connecting portion is exposed on the other side in the axial direction of the second case.

Abstract: An electric actuator includes a motor, a deceleration mechanism, an output shaft, and a preload member applying a preload to a motor shaft. The deceleration mechanism includes an external gear connected to an eccentric shaft via a second bearing, an internal gear engaged with the external gear, a flange part expanding from the output shaft, and protrusions inserted into holes respectively and supporting the external gear to be swingable. The second bearing includes an inner ring and an outer ring. The motor shaft has a large-diameter shaft connected to the other side of the eccentric shaft in the axial direction. The large-diameter shaft contacts the inner ring from the other side in the axial direction. The outer ring has a contact part contacting the external gear from the other side in the axial direction. The contact part presses and brings the external gear into contact with the flange part.

Abstract: In an electric actuator, an output shaft has a housing recess. An end of a motor shaft is housed in the housing recess. A first bearing supports the motor shaft in the housing recess. The motor shaft has an eccentric shaft. A deceleration mechanism includes an external gear connected to the eccentric shaft via a second bearing, an internal gear engaged with the external gear, a flange part expanding from the output shaft, and protrusions protruding from the flange part and disposed along the circumferential direction. The external gear has holes recessed on the other side in the axial direction. The holes are disposed along the circumferential direction and each have an inner diameter larger than the outer diameter of the protrusion. The protrusions are inserted into the holes respectively and support the external gear to be swingable around the central axis via the inner surfaces of the holes.

Abstract: An oil pressure sensor attachment structure includes the oil path body; the sensor case; and a seal member. The oil path body has an accommodation hole portion which accommodates the oil pressure sensor. The accommodation hole portion has a small-diameter hole portion and a large-diameter hole portion. The sensor case has a columnar portion which is disposed along a central axis extending in the up and down direction and of which at least a portion is inserted into the small-diameter hole portion. A flange portion which protrudes from the columnar portion to an outside in a radial direction and is inserted into the large-diameter hole portion. The flange portion is disposed to face a lower side of the upper body in the up and down direction. The seal member has an annular shape, and seals a portion between an inner surface of the accommodation hole portion and the sensor case.

Abstract: There is provided an electric actuator including a motor part, a deceleration mechanism, an output part, and a housing. The housing has a housing main body and a lid member. An output shaft is positioned at a first corner of the housing. The lid member and the housing main body are fastened by bolts. The bolts include corner bolts positioned at respective corners of the housing other than the first corner and an intermediate position bolt positioned at the intermediate between the first corner and a second corner adjacent to the first corner. In a plane view, the intermediate position bolt is positioned on the side of the planar center with respect to an edge connecting the first corner and the second corner and on the side of an outer edge with respect to an imaginary line connecting the center of the output shaft and the second corner.

Abstract: There is provided a breather structure of an actuator in which the breather structure is provided in a housing of the actuator, the breather structure including: a recessed groove positioned on an outer surface of the housing; a breathing hole which is positioned on a bottom surface of the recessed groove and passes through the housing in a first direction; a filter fixed to an inside of the housing so that the filter closes an opening of the breathing hole; a lid body which partially covers a region of the recessed groove including the breathing hole from an outside of the housing when viewed from the first direction; a breather opening portion positioned at a portion of the recessed groove exposed from the lid body; and a protrusion portion which protrudes from the bottom surface of the recessed groove to a side of the lid body.

Abstract: An electric oil pump includes a motor part having a shaft, a pump part located on a front side of the motor part and driven via the shaft, and a control part which controls the motor part. The motor part includes a rotor, a stator, and a motor housing having a cylindrical portion which accommodates the rotor and the stator. The pump part includes a pump rotor, and a pump housing which accommodates the pump rotor. The control part includes a substrate having a surface on which a plurality of electronic components are mounted. The surface of the substrate is disposed to face the cylindrical portion and extends in the axial direction. A coil, which is provided on the stator, and the substrate are electrically connected via a connecting bus bar assembly. The connecting bus bar assembly is disposed between the cylindrical portion and the substrate.

Abstract: An electric oil pump includes a motor part having a shaft, a pump part located on a front side of the motor part and driven via the shaft, and a control part controlling the motor part. The motor part includes a rotor, a stator, and a motor housing accommodating the rotor and the stator. The pump part includes a pump rotor mounted on the shaft protruding from the motor part, and a pump housing accommodating the pump rotor. The control part includes a substrate having a surface on which a plurality of electronic components are mounted. The surface of the substrate is disposed to face the cylindrical portion of the motor housing and extends in the axial direction. The substrate has an axial length shorter than an axial length of an assembly of the motor part and the pump part and is disposed within an axial range of the assembly.