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公开(公告)号：EP4307530A1
公开(公告)日：2024-01-17
申请号：EP23185251.8
申请日：2023-07-13
摘要： A rotary reciprocating drive actuator includes: a movable body (10) including: a shaft part (13) to which a movable object (12) is connected at one end portion side of the shaft part (13), and a magnet (32) fixed at an other end portion side of the shaft part (13), the movable body (10) being capable of performing a reciprocating rotation about an axis; a base portion (21) including a pair of wall portions (211, 212) that are disposed to sandwich the movable object and support the shaft part (13) via a bearing at the one end portion side such that the shaft part (13) is rotatable; a core assembly (40) including: a core body (400) comprising a plurality of magnetic poles facing an outer circumference of the magnet (32) to sandwich the magnet (32), a coil body (49) that is wound around the core body (400) and that is energized to generate a magnetic flux interacting with the magnet (32) to cause a reciprocating rotation of the movable body, and a magnet position holding portion (48) that generates a magnetic attraction force between the magnet position holding portion (48) and the magnet (32) to define a reference position of the reciprocating rotation, the core assembly (40) being attached to one wall portion (211) of the pair of wall portions (211, 212); and a sensor board (72) that is attached to an other wall portion (212) of the pair of wall portions (211, 212) and on which a sensor (76) configured to detect a rotational angle of one end portion of the shaft part (13) is mounted, in which the sensor board (72) is disposed such that the sensor (76) faces the other wall portion (212) from an axially outer surface side of the other wall portion (212) and detects the rotational angle.
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公开(公告)号：EP4307524A1
公开(公告)日：2024-01-17
申请号：EP23185237.7
申请日：2023-07-13
摘要： A rotary reciprocating drive actuator includes: a movable body (10) including: a shaft part (13) to which a movable object (12) is connected at one end portion side of the shaft part (13), and a magnet (32) fixed to an other end portion side of the shaft part (13), the movable body (10) being supported to be capable of performing a reciprocating rotation about an axis; a core assembly (40) including: a core body (400) including a plurality of magnetic poles (410a, 410b) facing an outer circumference of the magnet (32) to sandwich the magnet (32), a coil body (49) that is wound around the core body (400) and that is energized to generate a magnetic flux interacting with the magnet (32) to cause the reciprocating rotation of the movable body (10), and a magnet position holding portion (48) that generates a magnetic attraction force between the magnet position holding portion (48) and the magnet (32) to define a reference position of the reciprocating rotation; and a circuit board (72) disposed to cover the core assembly (40) at the other end portion side, in which the coil body (49) includes a terminal part (496) to which an end portion of a coil (44, 45) is connected and that is disposed to protrude to the circuit board (72) side so as to be connected to a circuit of the circuit board.
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公开(公告)号：EP4152579A1
公开(公告)日：2023-03-22
申请号：EP22195370.6
申请日：2022-09-13
摘要： A rotary reciprocating drive actuator includes: a movable body including a magnet fixed to a shaft portion to which a movable object is connected, the movable body being disposed to be capable of a reciprocating rotation about the shaft portion; a fixing body including a plurality of magnetic poles, a first magnetic attraction member, and a second magnetic attraction member that are disposed to face an outer circumference of the magnet, the plurality of magnetic poles including a plurality of coils, the first magnetic attraction member being configured to generate a first magnetic attraction force between the first magnetic attraction member and the magnet, the first magnetic attraction force defining a rotational center position of the reciprocating rotation of the movable body, the second magnetic attraction member being configured to generate a second magnetic attraction force between the second magnetic attraction member and the magnet, the second magnetic attraction force canceling an axis-radial load acting by the first magnetic attraction force on the movable body, in which a magnetic flux passing through the plurality of magnetic poles is generated by energization of the plurality of coils, causing the reciprocating rotation of the movable body about an axis of the shaft portion with reference to the rotational center position by electromagnetic interaction between the magnetic flux and the magnet.
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公开(公告)号：EP4307527A1
公开(公告)日：2024-01-17
申请号：EP23182370.9
申请日：2023-06-29
摘要： A rotary reciprocating drive actuator includes: a movable body including a shaft part (13) to which a movable object is connected at one end portion side of the shaft part, and a magnet (32) fixed to an other end portion side of the shaft part, the movable body being supported to be capable of performing a reciprocating rotation about an axis; a core assembly (40) including a magnet position holding portion (48) defining a reference position of the reciprocating rotation; and a sensor board (72) on which a sensor (70) for detecting a rotational angle of the shaft part is mounted, the sensor board being disposed to cover the core assembly from the other end portion side, with the sensor (70) facing the magnet side.
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公开(公告)号：EP4307526A1
公开(公告)日：2024-01-17
申请号：EP23182369.1
申请日：2023-06-29
摘要： A rotary reciprocating drive actuator (1) includes: a movable body (10) including a shaft part (13) to which a magnet (32) is fixed at an outer circumference of the shaft part and being capable of performing a reciprocating rotation around an axis; a base portion (21) including a pair of wall portions (211, 212) for supporting the shaft part (13) via a bearing (22) such that the shaft part is rotatable; a core assembly (40) including: a core body (400) having a plurality of magnetic poles (410a, 410b) facing an outer circumference of the magnet (32) to sandwich the magnet (32), a coil body (49) that is wound around the core body (400) and that is energized to generate a magnetic flux interacting with the magnet (32) to cause a reciprocating rotation of the movable body (10), and a magnet position holding portion (48) that generates a magnetic attraction force between the magnet position holding portion and the magnet (32) to define a reference position of the reciprocating rotation; and a preload applying part (35) that is externally fitted to the shaft part (13) and is configured to apply a preload to the bearing (22).
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公开(公告)号：EP4307529A1
公开(公告)日：2024-01-17
申请号：EP23185238.5
申请日：2023-07-13
摘要： A rotary reciprocating drive actuator includes: a main body unit including: a movable body including a shaft part to which a movable object is connected at one end portion side of the shaft part and to which a magnet is fixed at an other end portion side of the shaft part, and a base portion including a pair of wall portions disposed to sandwich the movable object, the base portion supporting the shaft part by the pair of wall portions such that the shaft part is rotatable, in a state in which the other end portion side of the shaft part protrudes from one wall portion of the pair of wall portions; a core assembly including: a core body including a plurality of magnetic poles facing an outer circumference of the magnet to sandwich the magnet, a coil body that is wound around the core body and that is energized to generate a magnetic flux interacting with the magnet to cause a reciprocating rotation of the movable body, and a magnet position holding portion that generates a magnetic attraction force between the magnet position holding portion and the magnet to define a reference position of the reciprocating rotation; and a connecting surface portion that is integrally disposed on the one end portion side of the core assembly, and that is attached to the one wall portion in a state where the shaft part is inserted into an opening portion and the magnet is disposed in the core assembly.
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公开(公告)号：EP4307528A1
公开(公告)日：2024-01-17
申请号：EP23185216.1
申请日：2023-07-13
摘要： A rotary reciprocating drive actuator includes: a movable body (10) including a shaft part (13) to which a magnet (32) is fixed at an outer circumference of the shaft part (13), the movable body (10) being capable of performing a reciprocating rotation about an axis; a base portion (21) including a pair of wall portions (211, 212) for supporting the shaft part (13) via a bearing (22) such that the shaft part (13) is rotatable; and a core assembly (40) including: a core body (400) including a plurality of magnetic poles (410a, 410b) facing an outer circumference of the magnet (32) to sandwich the magnet (32), a coil body (49) that is wound around the core body (400) and that is energized to generate a magnetic flux interacting with the magnet (32) to cause a reciprocating rotation of the movable body (10), and a magnet position holding portion (48) that generates a magnetic attraction force between the magnet position holding portion (48) and the magnet (32) to define a reference position of the reciprocating rotation, the core assembly (40) being fixed to one wall portion (211) of the pair of wall portions (211, 212), in which at least one of the base portion (21), the core body (400), or the core assembly (40) includes a positioning fixation part (215) for positioning and fixing the at least one of the base portion (21), the core body (400), or the core assembly (40) to a fixation target object (800) in a direction parallel to the shaft part (13).
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