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公开(公告)号：US06374608B1
公开(公告)日：2002-04-23
申请号：US09798919
申请日：2001-03-06
IPC分类号： F01B2910
CPC分类号： F03G7/065 , H01H61/0107
摘要： A shape memory alloy wire actuator includes a first body member, a second body member and a strand of shape memory alloy wire. The first body member and the second body member extend along a longitudinal axis and are slidably engageable with one another along the longitudinal axis. The first and second body members move in a linear, coaxial fashion relative to one another between an extended state and a contracted state. The first and second body members are resiliently biased away from one another by a spring. The strand of shape memory alloy wire interconnects the first and second body members in a serpentine manner. When the shape memory alloy wire is energized, such as by an electrical current, the shape memory alloy wire shortens causing the first body member and the second body member to move from the extended state to the contracted state. When the shape memory alloy wire is de-energized, i.e., the electrical current is shut off, the shape memory alloy wire lengthens causing the first body member and the second body member move from the contracted state to the extended state under the force of the spring.
摘要翻译： 形状记忆合金丝丝致动器包括第一主体部件，第二主体部件和形状记忆合金丝线。 第一主体构件和第二主体构件沿着纵向轴线延伸并且沿着纵向轴线可滑动地彼此接合。 第一和第二主体部件在延伸状态和收缩状态之间相对于彼此以线性，同轴的方式移动。 第一和第二主体部件通过弹簧被弹性地偏置彼此远离。 形状记忆合金线的线以蛇形方式将第一和第二主体部件互连。 当形状记忆合金线例如通过电流通电时，形状记忆合金线缩短，导致第一本体构件和第二本体构件从伸长状态移动到收缩状态。 当形状记忆合金丝断电时，即电流被切断时，形状记忆合金丝延长，导致第一主体部件和第二主体部件在第二主体部件和第二主体部件的力作用下从收缩状态移动到伸展状态 弹簧。
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公开(公告)号：US20010010488A1
公开(公告)日：2001-08-02
申请号：US09785979
申请日：2001-02-15
发明人： R. Sjhon Minners
IPC分类号： H01H061/00
CPC分类号： H01H61/0107 , H01H1/0036 , H01H2001/0042 , H01H2061/006 , H01H2061/0122
摘要： The present invention provides a bistable switch using a shape memory alloy, and a method for manufacturing the same. More specifically, the bistable switch includes a substrate having at least one power source; a flexible sheet having a first distal end attached to the substrate; a bridge contact formed at a second and opposite distal end of the flexible sheet; and at least one heat activated element connected to a first surface of the flexible sheet and between the second distal end and the power source. During operation, current from the power source passing through the heat activated element to indirectly bend the flexible sheet and short the signal contacts on the substrate with a sustainable force.
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公开(公告)号：US06188301B1
公开(公告)日：2001-02-13
申请号：US09192103
申请日：1998-11-13
IPC分类号： H01P110
CPC分类号： H01H1/0036 , H01H61/0107 , H01H2001/0042 , H01H2001/0073 , H01H2001/0084 , H01H2061/006 , Y10T29/49105 , Y10T29/49128 , Y10T29/49155
摘要： A switch structure having a base surface; a first high density interconnect (HDI) plastic interconnect layer overlying the base surface layer; a cavity within the HDI plastic interconnect layer; at least one patterned shape memory alloy (SMA) layer overlying the HDI plastic interconnect layer and the cavity, and at least one patterned conductive layer over the at least one patterned SMA layer; a fixed contact pad within the cavity and attached to the base surface and a movable contact pad attached to a portion of the first patterned SMA layer within the cavity such that when the first and second patterned SMA layers and the first and second patterned metallized layers are in a first stable position, the movable contact pad touches the fixed contact pad, thereby providing an electrical connection and forming a closed switch. The structure has a second stable position in which the SMA and metallized layers are flexed away from the cavity so that the contact pads are not in contact and form an open switch.
摘要翻译： 具有基面的开关结构; 覆盖基底表面层的第一高密度互连（HDI）塑料互连层; HDI塑料互连层内的空腔; 覆盖HDI塑料互连层和空腔的至少一个图案形状记忆合金（SMA）层，以及至少一个图案化的SMA层上的至少一个图案化导电层; 空腔内的固定接触焊盘并附接到基体表面，以及可移动接触垫，其附接到空腔内的第一图案化SMA层的一部分，使得当第一和第二图案化SMA层和第一和第二图案化金属化层为 在第一稳定位置，可动接触垫接触固定接触垫，由此提供电连接并形成闭合的开关。 该结构具有第二稳定位置，其中SMA和金属化层从空腔弯曲，使得接触焊盘不接触并形成开放的开关。
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公开(公告)号：US6016096A
公开(公告)日：2000-01-18
申请号：US94580
申请日：1998-06-12
申请人： Gregory Barnes , Jon Skekloff , David D. Martin , Douglas Ray
发明人： Gregory Barnes , Jon Skekloff , David D. Martin , Douglas Ray
CPC分类号： H01H61/0107 , F25D21/002 , F25D29/00 , H01H2061/0122
摘要： A novel shape memory alloy electrical switch is disclosed, including both momentary and especially a latching relay. The switch/relay disclosed is particularly useful in low power control of appliances, including i.a. refrigerators. Used with a microprocessor, microcontroller, or like device to control the shape memory alloy switch/relay, an adaptive control routine may be included which facilitates an especially low-power dissipation, highly effective appliance control module, especially suitable for refrigerators. The disclosed refrigerator control module can be manufactured at low cost with high reliability.
摘要翻译： 公开了一种新颖的形状记忆合金电开关，包括瞬时的，特别是闭锁继电器。 公开的开关/继电器在电器的低功率控制中尤其有用，包括例如： 冰箱。 与微处理器，微控制器或类似设备一起使用以控制形状记忆合金开关/继电器，可以包括一种自适应控制程序，这有助于特别适用于电冰箱的特别是低功耗，高效的设备控制模块。 所公开的冰箱控制模块可以以低成本，高可靠性制造。
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公开(公告)号：US5570262A
公开(公告)日：1996-10-29
申请号：US201844
申请日：1994-02-25
申请人： Bruno C. Doerwald
发明人： Bruno C. Doerwald
CPC分类号： H02H1/066 , H01H71/685 , H01H37/004 , H01H61/0107 , H01H71/04 , H01H71/46
摘要： An overload relay including a thermal actuator heated by a control circuit is disclosed herein. The overload relay includes a contactor having a pair of contacts for interrupting the application of power from one or more power conductors to a load such as a motor. The relay also includes current transformers associated with each power conductor configured to produce signals representative of the electrical current in the power conductor. The control circuit is coupled to the current transformers and monitors the current signals when the contacts of the contactor are closed. In response to the current signals exceeding predetermined limits, the control circuit applies a heating current to the thermal actuator. In response to the heating current, the thermal actuator opens a switch which controls the application of power to the solenoid of the contactor.
摘要翻译： 本文公开了包括由控制电路加热的热致动器的过载继电器。 过载继电器包括具有一对触点的接触器，用于中断从一个或多个电力导体到诸如电动机的负载的电力的施加。 继电器还包括与配置成产生表示电力导体中的电流的信号的每个电源导体相关联的电流互感器。 当接触器的触点闭合时，控制电路耦合到电流互感器并监视电流信号。 响应于超过预定极限的电流信号，控制电路向热致动器施加加热电流。 响应于加热电流，热致动器打开开关，其控制对接触器的螺线管施加电力。
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公开(公告)号：US5206775A
公开(公告)日：1993-04-27
申请号：US704772
申请日：1991-05-23
申请人： Jean P. Wilson
发明人： Jean P. Wilson
CPC分类号： H02H3/207 , H01H61/0107 , H02H7/18
摘要： A circuit bypass device (30) having terminals (70, 80) is connected to contacts (70, 80) of a cell (20) to provide a conductive path (40) in response to voltage excursion therebetween. Device (30) includes: a conductive shunt (40), coupled to contacts (70, 80), that is movable from a normally non-conductive position to a conductive position between terminals (70, 80); a detector (50), coupled to conductive shunt (40), for sensing voltage excursion beyond specified limits between contacts (70, 80); and an actuator (60) having a heat-to-recover shape memory metal alloy that is formed to contract when detector (50) senses the voltage excursion, for moving conductive shunt (40) from the non-conductive position to the conductive position. The formed alloy is preferably spring-shape which contracts translationally and torsionally.
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公开(公告)号：US5017898A
公开(公告)日：1991-05-21
申请号：US550755
申请日：1990-07-12
申请人： Kiyoaki Kuzukawa
发明人： Kiyoaki Kuzukawa
CPC分类号： H01H50/648 , H01H61/0107 , H01H1/504 , H01H37/323
摘要： An electromagnetic relay comprises a force transmitting member for displacing a movable contact point member as an armature moves, to come in contact with a fixed contact point member. A pressing portion of the force transmitting member which is in contact with the movable contact point member is formed of a shape memory material restoring a previously memorized shape at or above a predetermined temperature. The fixed contact point and the movable contact point are abraded resulted from the long-term use of the electromagnetic relay, thereby reducing contact pressure between the two contact points and correspondingly increasing contact resistance, so that the contact points overheats. While the pressing portion of the force transmitting member overheats corresponding thereto, it changes into a predetermined shape by exerting a shape memory effect at or above a predetermined temperature to increase the contact pressure between the movable contact point member and the fixed contact point member, thereby eliminating the overheating between the contact points.
摘要翻译： 电磁继电器包括用于使电枢移动的可动触点部件移动的力传递部件，与固定触点部件接触。 与可动接点部件接触的力传递部件的按压部由形状记忆材料形成，该形状记忆材料在预定温度以上恢复以前存储的形状。 由于电磁继电器的长期使用导致固定触点和可动接触点磨损，从而降低了两个接触点之间的接触压力，并相应增加了接触电阻，使接点过热。 在力传递部件的按压部分相应地过热的同时，通过在规定温度以上施加形状记忆效果而变化为规定的形状，以增加可动接点部件与固定接点部件的接触压力，由此 消除接触点之间的过热。
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公开(公告)号：US4998688A
公开(公告)日：1991-03-12
申请号：US373117
申请日：1989-06-29
CPC分类号： F42B15/01 , H01H61/0107 , H01R12/52 , H01R4/01
摘要： A detector array assembly which provides for the closing at operating temperature of normally open contacts between individual sensor contact mesas and readout pads of the respective detector and readout chips comprising a detector array assembly. One or more shape memory separator elements are used in conjunction with one or more biasing springs to control the spacing of the contacts. The force of the biasing spring becomes the dominant force as the apparatus is cooled down to near operating temperature, thus moving the chips closer together and establishing reliable electrical connection between the opposed sets of contacts. At temperatures near and above the normal operating temperature of 77 degrees K., the shape memory separator element provides the dominant force and drives the chips apart to open the contacts.
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公开(公告)号：US4765139A
公开(公告)日：1988-08-23
申请号：US76956
申请日：1987-07-23
申请人： Charles Wood
发明人： Charles Wood
IPC分类号： F03G7/06 , H01H61/01 , H01H61/013
CPC分类号： H01H61/013 , F03G7/065 , H01H61/0107
摘要： A semiconductor thermocouple unit is provided for improving heating and cooling of memory metal actuators. The semiconductor thermocouple unit is mounted adjacent to a memory metal actuator and has a heat sink connected thereto. A flexible thermally conductive element extends between the semiconductor thermocouple and the actuator and serves as a heat transfer medium during heating and cooling operations.
摘要翻译： 提供半导体热电偶单元用于改善记忆金属致动器的加热和冷却。 半导体热电偶单元安装在与存储金属致动器相邻并具有连接到其上的散热器。 柔性导热元件在半导体热电偶和致动器之间延伸，并且在加热和冷却操作期间用作传热介质。
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公开(公告)号：US4684913A
公开(公告)日：1987-08-04
申请号：US905082
申请日：1986-09-05
申请人： John R. Yaeger
发明人： John R. Yaeger
CPC分类号： F03G7/065 , G11B21/21 , H01H61/0107
摘要： A slider lifter including a support structure, a flexure arm and a resilient means cantilevered from the support structure, and a shape memory alloy element operatively connected between the support structure and the resilient means, wherein the shape memory alloy element has a martensitic condition and an austenitic condition. The shape memory alloy element in one of the martensitic and austenitic conditions cooperates with the resilient means to elastically deform the flexure arm from an undeformed position to a deformed position. The shape memory alloy element in the other of the martensitic and austenitic conditions cooperates with the resilient means to both move away from the fexure arm, thereby allowing the flexure arm to return towards its undeformed position. It is most preferred that when the resilient means moves away from the flexure arm, the flexure arm and the resilient means are not in contact. This allows the flexure arm to return to its completely undeformed position.
摘要翻译： 包括支撑结构，挠曲臂和从支撑结构悬臂的弹性装置的滑块升降器和可操作地连接在支撑结构和弹性装置之间的形状记忆合金元件，其中形状记忆合金元件具有马氏体状态和 奥氏体条件。 在马氏体和奥氏体条件之一中的形状记忆合金元件与弹性装置配合以使挠曲臂从未变形的位置弹性变形到变形位置。 在另一个马氏体和奥氏体条件下的形状记忆合金元素与弹性装置配合，以使两者从移动臂移开，从而允许挠曲臂朝向未变形的位置返回。 最优选的是，当弹性装置远离弯曲臂移动时，挠曲臂和弹性装置不接触。 这允许挠曲臂返回到其完全未变形的位置。
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