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公开(公告)号：US20220055722A1
公开(公告)日：2022-02-24
申请号：US17351411
申请日：2021-06-18
摘要： An inflation device is provided including a shell, a pin, a restraining element, and a moveable element. The shell is adapted to be coupled to an inflation canister. The pin is positioned within the shell. The pin is adapted to open a seal of the inflation canister. The restraining element is positioned within the shell. The moveable element includes a shape memory alloy. The moveable element is moveable from a first position to a second position responsive to electrical energy sent to the moveable element. While the moveable element is in the first position, the restraining element is secured within the shell to restrain the pin from opening the seal of the inflation canister. While the moveable element is in the second position, the pin is releasable to open the seal of the inflation canister.
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公开(公告)号：US07256518B2
公开(公告)日：2007-08-14
申请号：US10889814
申请日：2004-07-13
CPC分类号： F03G7/065
摘要： Linear actuators comprised of a plurality of geometric links connected together in displacement multiplied fashion by a plurality of SMA wires. The links may have a trigon or chevron configuration. The trigon links may be combined with a hexagonal or rhomboidal shaft to create a defined stacking pattern of links about the shaft. The shaft extends from the medial portion of the stack. Ohmic heating circuits connect to non-moving ends of SMA wires. Various groupings of links in parallel displacement are described.
摘要翻译： 线性致动器由多个几何连杆构成，多个几何连杆通过多个SMA线以位移相乘的方式连接在一起。 链接可以具有三角形或人字纹配置。 三角连杆可以与六边形或菱形轴组合以产生围绕轴的限定的连接图案。 轴从堆叠的内侧部分延伸。 欧姆加热电路连接到SMA线的不动端。 描述了平行位移中的各种链接分组。
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公开(公告)号：US06928812B2
公开(公告)日：2005-08-16
申请号：US10632170
申请日：2003-07-30
CPC分类号： F03G7/065
摘要： A method and apparatus for preventing the unintended activation of SMA devices by ambient temperatures that exceed the phase transition temperature of the SMA material itself. In one embodiment a passive actuator is coupled to an active actuator, each having identical arrangements of SMA wire, but connected in opposite directions to compensate for temperature drift that is not due to powered heating. A second embodiment consists of a passive SMA wire connected to a latch/release mechanism allowing the actuator itself to move rather than moving the load. In a third embodiment the passive wire is connected to a load coupling, so that the load itself is disconnected from the actuator when the passive wire reaches the phase transition temperature. The passive wire may be made of a lower-temperature wire than the active wires, so that the release action occurs long before the active wire begins to be moved by ambient temperature.
摘要翻译： 一种用于通过超过SMA材料本身的相变温度的环境温度来防止SMA器件意外激活的方法和装置。 在一个实施例中，无源致动器耦合到主动致动器，每个主动致动器具有相同的SMA线排列，但是以相反方向连接以补偿不是由于加热加热引起的温度漂移。 第二实施例包括连接到闩锁/释放机构的被动SMA线，允许致动器本身移动而不是移动负载。 在第三实施例中，无源线连接到负载耦合，使得当无源线达到相变温度时，负载本身与致动器断开连接。 无源线可以由比有源线更低温的导线制成，使得释放动作在有源线开始被环境温度移动之前很长时间发生。
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公开(公告)号：US11840319B2
公开(公告)日：2023-12-12
申请号：US17221543
申请日：2021-04-02
CPC分类号： B63C9/19 , B63C9/24 , B63C2009/0047 , F17C2205/032
摘要： An inflation device is provided including a shell, a pin, a restraining element, and a barrier. The shell may be coupled to an inflation canister. The pin is positioned within the shell in order to open a seal of the inflation canister. The restraining element is positioned within the shell and is positioned to prevent the pin from opening the seal of the inflation canister. The restraining element is dissolvable. The barrier is positioned within the shell. The barrier includes a fluid resistant skin and a heating element coupled to the fluid resistant skin. The heating element may open a portion of the barrier responsive to an electrical current running through the heating element.
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公开(公告)号：US07021055B2
公开(公告)日：2006-04-04
申请号：US11017563
申请日：2004-12-20
IPC分类号： F01B29/10
CPC分类号： F03G7/065
摘要： Actuators that employs a shape memory alloy component as the driving element include linear and rotational devices. An Intrinsic Return Means (IRM) may be imparted to the SMA actuator, thereby reducing the use of a spring return mechanism. The rotational actuator may include a cylindrical bobbin with a helical groove to receive an SMA wire. A number of turns may be placed in a small length of bobbin to amplify the rotational excursion. In another rotational actuator, a plurality of narrow, coaxial rings are provided, the rings being nested in close concentric fit or stacked in side-by-side fashion. Each ring is provided with a groove extending thereabout to receive an SMA wire and contraction of the wire causes each ring to rotate with respect to the adjacent ring. In an embodiment for linear actuation, the invention provides a bar-like component having SMA wires joined between bars. The invention includes a lost motion coupling to join two counter-acting SMA stroke amplification devices, whether linear or rotational.
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公开(公告)号：US11753125B2
公开(公告)日：2023-09-12
申请号：US17351411
申请日：2021-06-18
CPC分类号： B63C9/19 , B63C9/125 , B63C9/1255 , B63C2009/0023 , F17C2205/0326
摘要： An inflation device is provided including a shell, a pin, a restraining element, and a moveable element. The shell is adapted to be coupled to an inflation canister. The pin is positioned within the shell. The pin is adapted to open a seal of the inflation canister. The restraining element is positioned within the shell. The moveable element includes a shape memory alloy. The moveable element is moveable from a first position to a second position responsive to electrical energy sent to the moveable element. While the moveable element is in the first position, the restraining element is secured within the shell to restrain the pin from opening the seal of the inflation canister. While the moveable element is in the second position, the pin is releasable to open the seal of the inflation canister.
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公开(公告)号：US20220177091A1
公开(公告)日：2022-06-09
申请号：US17221543
申请日：2021-04-02
摘要： An inflation device is provided including a shell, a pin, a restraining element, and a barrier. The shell may be coupled to an inflation canister. The pin is positioned within the shell in order to open a seal of the inflation canister. The restraining element is positioned within the shell and is positioned to prevent the pin from opening the seal of the inflation canister. The restraining element is dissolvable. The barrier is positioned within the shell. The barrier includes a fluid resistant skin and a heating element coupled to the fluid resistant skin. The heating element may open a portion of the barrier responsive to an electrical current running through the heating element.
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公开(公告)号：US20210370816A1
公开(公告)日：2021-12-02
申请号：US16886008
申请日：2020-05-28
摘要： An automotive head restraint apparatus includes a housing having a padded and upholstered exterior, the housing being rotatable about a lateral support tube that supports a lock plate having a lobe extending radially with a detent slot extending therein. A latch finger extends from a pivotable lock lever plate to releasably engage in the detent slot to latch the housing in the deployed position. A pull rod is secured to the lock lever plate, and is connected to a release lever arm at its other end. A shape memory alloy (SMA) wire loop is passed about a drive pulley that is supported by a reciprocally translatable slide. A drive arm extends from the slide to impinge on the release lever and raise the pull rod when the SMA wire loop is energized and contracted, thereby releasing the latch finger to rotate the housing to the retracted position.
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公开(公告)号：US06762515B2
公开(公告)日：2004-07-13
申请号：US10056233
申请日：2001-12-03
申请人： Mark A. Gummin , William Donakowski
发明人： Mark A. Gummin , William Donakowski
IPC分类号： H02K4100
CPC分类号： F03G7/065
摘要： A linear actuator includes a plurality of sub-modules disposed in adjacent array and adapted to translate reciprocally parallel to a common axis. A plurality of shape memory alloy wires extend generally linearly and parallel to the axis, and are each connected from one end of a sub-module to the opposed end of an adjacent sub-module. The SMA wires are connected in a circuit for ohmic heating that contracts the SMA wires between the sub-modules. The sub-modules are linked by the SMA wires in a serial mechanical connection that combines the constriction stroke displacement of the SMA wires in additive fashion to achieve a long output stroke. Moreover, the sub-modules are assembled in a small volume, resulting in an actuator of minimal size and maximum stroke displacement. The sub-modules may be rods or bars disposed in closely spaced adjacent relationship, or concentric motive elements, with the serial mechanical connection extending from each motive element to the radially inwardly adjacent motive element, whereby the innermost motive element receives the sum of the translational excursions of all the motive elements concentric to the innermost element. The SMA linear actuator includes a restoring spring assembly having a restoring force that decreases with increasing displacement to minimize residual strain in the SMA components. The SMA wires are connected for ohmic heating in various series and parallel circuit arrangements that optimize force output, cycle time, current flow, and ease of connection.
摘要翻译： 线性致动器包括多个子模块，其布置在相邻的阵列中并且适于平行于公共轴线往复平移。 多个形状记忆合金线大致线性地平行于轴线延伸，并且各自从子模块的一端连接到相邻子模块的相对端。 SMA线连接在用于欧姆加热的电路中，从而在子模块之间收缩SMA线。 子模块通过串联机械连接的SMA线连接，其以相加的方式组合SMA线的收缩行程位移以实现长输出冲程。 此外，子模块以小体积组装，导致最小尺寸和最大冲程位移的致动器。 子模块可以是以紧密间隔的相邻关系设置的杆或杆，或同心运动元件，其中串联机械连接从每个动力元件延伸到径向向内相邻的动力元件，由此最内部动力元件接收平移 所有与最内层元素同心的动机元素的游览。 SMA线性致动器包括具有随着位移增大而减小的恢复力的恢复弹簧组件，以最小化SMA部件中的残余应变。 SMA线连接用于各种串联和并联电路布置的欧姆加热，可优化力输出，循环时间，电流和连接方便性。
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公开(公告)号：US06326707B1
公开(公告)日：2001-12-04
申请号：US09566446
申请日：2000-05-08
申请人： Mark A. Gummin , William Donakowski
发明人： Mark A. Gummin , William Donakowski
IPC分类号： H02K4100
CPC分类号： F03G7/065
摘要： A linear actuator includes a plurality of sub-modules disposed in adjacent array and adapted to translate reciprocally parallel to a common axis. A plurality of shape memory alloy wires extend generally linearly and parallel to the axis, and are each connected from one end of a sub-module to the opposed end of an adjacent sub-module. The SMA wires are connected in a circuit for ohmic heating that contracts the SMA wires between the sub-modules. The sub-modules are linked by the SMA wires in a serial mechanical connection that combines the constriction stroke displacement of the SMA wires in additive fashion to achieve a long output stroke. Moreover, the sub-modules are assembled in a small volume, resulting in an actuator of minimal size and maximum stroke displacement. The sub-modules may be rods or bars disposed in closely spaced adjacent relationship, or concentric motive elements, with the serial mechanical connection extending from each motive element to the radially inwardly adjacent motive element, whereby the innermost motive element receives the sum of the translational excursions of all the motive elements concentric to the innermost element. The SMA linear actuator includes a restoring spring assembly having a restoring force that decreases with increasing displacement to minimize residual strain in the SMA components. The SMA wires are connected for ohmic heating in various series and parallel circuit arrangements that optimize force output, cycle time, current flow, and ease of connection.
摘要翻译： 线性致动器包括多个子模块，其布置在相邻的阵列中并且适于平行于公共轴线往复平移。 多个形状记忆合金线大致线性地平行于轴线延伸，并且各自从子模块的一端连接到相邻子模块的相对端。 SMA线连接在用于欧姆加热的电路中，从而在子模块之间收缩SMA线。 子模块通过串联机械连接的SMA线连接，其以相加的方式组合SMA线的收缩行程位移以实现长输出冲程。 此外，子模块以小体积组装，导致最小尺寸和最大冲程位移的致动器。 子模块可以是以紧密间隔的相邻关系设置的杆或杆，或同心运动元件，其中串联机械连接从每个动力元件延伸到径向向内相邻的动力元件，由此最内部动力元件接收平移 所有与最内层元素同心的动机元素的游览。 SMA线性致动器包括具有随着位移增大而减小的恢复力的恢复弹簧组件，以最小化SMA部件中的残余应变。 SMA线连接用于各种串联和并联电路布置的欧姆加热，可优化力输出，循环时间，电流和连接方便性。
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