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公开(公告)号：US12099250B2
公开(公告)日：2024-09-24
申请号：US18019304
申请日：2021-08-05
CPC分类号： G02B7/08 , G02B27/646 , G03B5/06 , G03B13/36 , F03G7/06143 , F03G7/0665 , G03B2205/0023 , G03B2205/0076
摘要： An actuator assembly (4001) includes a first part (4002), a second part (4004), a bearing arrangement (4003) and a drive arrangement (4005). The bearing arrangement (4003) includes first to fourth flexures (40151, 40152, 40153, 40154) arranged about a primary axis (4009) passing through the actuator assembly (4001). The bearing arrangement (4003) supports the second part (4004) on the first part (4002). The second part (4004) is tiltable about first and/or second axes (4011, 4012) which are not parallel and which are perpendicular to the primary axis (4009). The drive arrangement (4005) includes four lengths of shape memory alloy wire (40101, 40102, 40103, 40104). The four lengths of shape memory alloy wire (40101, 40102, 40103, 40104) are coupled to the second part (4004) and to the first part (4002). The bearing 15 arrangement (4003) is configured to convert lateral force(s) normal to the primary axis (4009) generated by the drive arrangement (4005) into tilting of the second part (4004) about the first and/or second axes (4011, 4012). Each of the first to fourth flexures (40151, 40152, 40153, 40154) has a first end (4016) connected to the first part (4002) and a second end (4017) connected to the second part (4004). Each of the first to fourth flexures (40151, 40152, 40153, 40154) includes a feature (1016) configured to increase a first compliance of that flexure (40151, 40152, 40153, 40154) to displacement of the respective second end (4017) towards the respective first end (4016). The first compliance is less than a second compliance of that flexure (40151, 40152, 40153, 40154) to 25 displacement of the respective second end (4017) parallel to the primary axis (4009).
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2.发明公开公开(公告)号：US20240133367A1
公开(公告)日：2024-04-25
申请号：US18491436
申请日：2023-10-19
发明人： Bhargaw Hari NARAYAN , Joshi Tilak CHANDRA , Hashmi Syed Azhar RASHEED , Srivastava Avanish KUMAR , John PRETESH
IPC分类号： F03G7/06
CPC分类号： F03G7/0635 , F03G7/06143 , F03G7/0616 , F03G7/062 , F03G7/064 , F03G7/0665 , B33Y30/00
摘要： A Bidirectional, Linear and Binary, Segmented Antagonistic Servomechanism-based Shape Memory Alloy (SMA) Actuator comprising a main stroke transmitting lever (11 or 18) and a plurality of part-modules (15A or 15B) disposed in a closely spaced arrangement and adapted to undergo a reciprocal translation in a first direction. wherein, the part-modules comprising a plurality of segments having SMA elements (12). The invention provides two configurations arranged in ‘straight’ and ‘cross’ configurations of the SMA elements in the part-modules. Further above configuration are arranged in a tight close space however, the “cross” configuration provides additional 40% compactness. The configurations comprise a “S-type long tail” or “flipped F-type long tail” main stroke transmitting lever and plurality of “straight” or “cross” configurations part modules, respectively. The novel embodiment can be utilized for micro-positioning of 3D printer filament extruder head, linear and angular displacement applications such as robotic, prosthesis, bi-stable position control, latching-unlatching systems, and other wide engineering applications.
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公开(公告)号：US11892759B2
公开(公告)日：2024-02-06
申请号：US18103745
申请日：2023-01-31
CPC分类号： G03B17/563 , F03G7/0665 , G02B6/3576 , G02B6/3859 , G03B17/38 , H10N30/00 , H10N30/50 , G03B2205/0061 , G03B2205/0076
摘要： SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.
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公开(公告)号：US11815794B2
公开(公告)日：2023-11-14
申请号：US17569268
申请日：2022-01-05
CPC分类号： G03B17/563 , F03G7/0665 , G02B6/3576 , G02B6/3859 , G03B17/38 , H10N30/00 , H10N30/50 , G03B2205/0061 , G03B2205/0076
摘要： SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.
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公开(公告)号：US12055844B2
公开(公告)日：2024-08-06
申请号：US18103725
申请日：2023-01-31
CPC分类号： G03B17/563 , F03G7/0665 , G02B6/3576 , G02B6/3859 , G03B17/38 , H10N30/00 , H10N30/50 , G03B2205/0061 , G03B2205/0076
摘要： SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.
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公开(公告)号：US20240184188A1
公开(公告)日：2024-06-06
申请号：US18407667
申请日：2024-01-09
CPC分类号： G03B17/563 , F03G7/0665 , G02B6/3576 , G02B6/3859 , G03B17/38 , H10N30/00 , H10N30/50 , G03B2205/0061 , G03B2205/0076
摘要： SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.
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公开(公告)号：US11905935B2
公开(公告)日：2024-02-20
申请号：US17438113
申请日：2020-03-04
申请人： rapitag GmbH
IPC分类号： F03G7/06
CPC分类号： F03G7/0665 , F03G7/062 , F03G7/0616 , F03G7/06143
摘要： The invention relates to an actuator element (10), comprising an actuator (12), which comprises a shape memory alloy and is designed to shorten or extend itself in the longitudinal extension direction thereof when in an excited state; an electronic control unit, which has a carrier element (18) and a plurality of electronic components (26) for exciting the actuator (12) on the basis of a control signal; and a movable component (20), which is coupled to the actuator and is movable by means of the actuator (12) relative to the carrier element (18); wherein the carrier element (18) defines a guide portion (16), in particular a dimensionally stable guide portion, by means of which the actuator (12) is guided along the longitudinal extension direction thereof.
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公开(公告)号：US11767829B2
公开(公告)日：2023-09-26
申请号：US17900986
申请日：2022-09-01
CPC分类号： F03G7/0665 , G01L1/005 , G12B1/00
摘要： Broadly speaking, embodiments of the present techniques provide methods for driving shape memory alloy (SMA) actuator wires in a more power-efficient manner.
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公开(公告)号：US20230213728A1
公开(公告)日：2023-07-06
申请号：US18019304
申请日：2021-08-05
CPC分类号： F03G7/0665 , F03G7/06143 , G02B27/646 , G02B7/08 , G03B5/06 , G03B13/36 , G03B2205/0076 , G03B2205/0023
摘要： An actuator assembly (4001) includes a first part (4002), a second part (4004), a bearing arrangement (4003) and a drive arrangement (4005). The bearing arrangement (4003) includes first to fourth flexures (40151, 40152, 40153, 40154) arranged about a primary axis (4009) passing through the actuator assembly (4001). The bearing arrangement (4003) supports the second part (4004) on the first part (4002). The second part (4004) is tiltable about first and/or second axes (4011, 4012) which are not parallel and which are perpendicular to the primary axis (4009). The drive arrangement (4005) includes four lengths of shape memory alloy wire (40101, 40102, 40103, 40104). The four lengths of shape memory alloy wire (40101, 40102, 40103, 40104) are coupled to the second part (4004) and to the first part (4002). The bearing 15 arrangement (4003) is configured to convert lateral force(s) normal to the primary axis (4009) generated by the drive arrangement (4005) into tilting of the second part (4004) about the first and/or second axes (4011, 4012). Each of the first to fourth flexures (40151, 40152, 40153, 40154) has a first end (4016) connected to the first part (4002) and a second end (4017) connected to the second part (4004). Each of the first to fourth flexures (40151, 40152, 40153, 40154) includes a feature (1016) configured to increase a first compliance of that flexure (40151, 40152, 40153, 40154) to displacement of the respective second end (4017) towards the respective first end (4016). The first compliance is less than a second compliance of that flexure (40151, 40152, 40153, 40154) to 25 displacement of the respective second end (4017) parallel to the primary axis (4009).
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10.发明公开公开(公告)号：US20240229779A9
公开(公告)日：2024-07-11
申请号：US18491436
申请日：2023-10-20
发明人： Bhargaw Hari NARAYAN , Joshi Tilak CHANDRA , Hashmi Syed Azhar RASHEED , Srivastava Avanish KUMAR , John PRETESH
IPC分类号： F03G7/06
CPC分类号： F03G7/0635 , F03G7/06143 , F03G7/0616 , F03G7/062 , F03G7/064 , F03G7/0665 , B33Y30/00
摘要： A Bidirectional, Linear and Binary, Segmented Antagonistic Servomechanism-based Shape Memory Alloy (SMA) Actuator comprising a main stroke transmitting lever (11 or 18) and a plurality of part-modules (15A or 15B) disposed in a closely spaced arrangement and adapted to undergo a reciprocal translation in a first direction. wherein, the part-modules comprising a plurality of segments having SMA elements (12). The invention provides two configurations arranged in ‘straight’ and ‘cross’ configurations of the SMA elements in the part-modules. Further above configuration are arranged in a tight close space however, the “cross” configuration provides additional 40% compactness. The configurations comprise a “S-type long tail” or “flipped F-type long tail” main stroke transmitting lever and plurality of “straight” or “cross” configurations part modules, respectively. The novel embodiment can be utilized for micro-positioning of 3D printer filament extruder head, linear and angular displacement applications such as robotic, prosthesis, bi-stable position control, latching-unlatching systems, and other wide engineering applications.
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