54results about "Shape memory alloy connections" patented technology

The invention relates to the technical field of cable connection, in particular to a crimping type cable connector based on nickel-titanium shape memory alloy and a connection method. The connector comprises a connecting pipe and a copper lining, the connecting pipe is a nickel-titanium shape memory alloy cylinder, and the copper lining is tightly attached to the inner wall of the connecting pipe. The shape memory effect of the nickel-titanium shape memory alloy can ensure uniform crimping and avoid stress concentration. The nickel-titanium shape memory alloy has a strong crimping effect, so that the cable connector has excellent mechanical performance and stability, and the service life of the connector is prolonged. The nickel-titanium shape memory alloy has the characteristics of corrosion resistance and high and low temperature resistance, and can be suitable for severe environments. The copper lining tightly attached to the interior of the connecting pipe can remarkably reduce contact resistance, enhance electrical connection and reduce energy loss. The cable connector disclosed by the invention is extremely simple and convenient to install on an engineering site, and crimping can be completed by heating without a complicated tool.

The purpose of the present invention is to enable easy connection work while obtaining high connection reliability between a pin terminal and a socket terminal. This socket terminal is connected to a pin terminal, and is provided with: a cylindrical part having a cylindrical base part and a plurality of spring contact pieces arranged in the circumferential direction of the cylindrical base part; and an urging member externally fitted to the cylindrical portion, each of the plurality of spring contact pieces extending from the cylindrical base portion in the axial direction of the cylindrical base portion and being elastically deformable in the radial direction of the cylindrical base portion, the urging member urging each of the plurality of spring contact pieces toward the inner circumferential side, and applying a contact pressure from each of the plurality of spring contact pieces against the pin terminal, the urging member urging each of the plurality of spring contact pieces being elastically deformable in the radial direction of the cylindrical base portion. The biasing member is made of a shape memory alloy that memorizes the shape so that the contact pressure is increased by temperature rise.

The invention relates to an electrical contact element (1) for plugging together with a mating contact (20), wherein the contact element has at least one elastically deflectable spring member (14) which has at least one contact point (18) for contacting the mating contact and is designed to generate a contact force (96) acting on the mating contact during operation, wherein at least one area made of a shape memory material (22) is integrated into the at least one contact element, which can be transformed from a first (24) to a second shape (28) depending on the temperature, wherein the at least one contact point is located in the first shape of the area made of a shape memory material at a first contact position (26) and in the second shape of the area made of a shape memory material at a second contact position (30) in the force-free state (2) of the contact element.The contact element according to the invention is able to reliably maintain a mating contact even under difficult environmental conditions, provides a low contact resistance and is easy to plug together with the mating contact.

The present invention relates to a connector for transmitting electrical currents, in particular currents greater than 100 A, comprising a blade and a terminal. The blade is designed to be inserted into the terminal along a joining direction to form the connector. Furthermore, the blade has a lower hardness than the terminal. The terminal has a first contact tab designed to dig into a first main surface of the blade and a second contact tab designed to dig into a second main surface of the blade. The first main surface is aligned parallel to the second main surface along a joining direction.

An electrical connector for connecting electrical conductors in an aircraft includes a pin having a first contact surface and a socket configured to receive the pin, wherein the socket has a second contact surface that is in contact with first contact surface of the pin when the pin is received in the socket. The connector further includes a securing part positioned such that it applies a contact or clamping force that presses the first and second contact surfaces against each other when the pin is received in the socket. The securing part is made of a shape memory alloy configured to exist in a martensite phase and an austenite phase depending on a temperature of the securing part, wherein the securing part assumes a first pre-set shape when the temperature of the securing part is below a first temperature threshold, and a second pre-set shape when the temperature of the securing part is above a second temperature threshold higher than the first temperature threshold, wherein the contact or clamping force applied by the securing part in the second pre-set shape is greater than in the first pre-set shape.

The invention relates to a contact plug for transmitting electrical energy by means of detachable contact with a contact socket, wherein the contact plug is designed as a claw pin, in that it has at least one claw-shaped element which deforms through temperature changes and realizes a change in the contact normal force between the claw pin and the contact socket.

The application belongs to the technical field of electric power fittings, and particularly relates to a high-strength parallel groove wire clamp and a bolt; the high-strength parallel groove wire clamp comprises a first clamp body and a second clamp body which are oppositely arranged and cooperated to form a wire clamping channel; and a fastening assembly which is connected with the first clamp body and the second clamp body and is used for providing an initial clamping force; the abnormal temperature rise of the wire is directly converted into an axial clamping force through an integrated radial constraint heat-sensitive driving element, the maximum mechanical holding force is provided at the moment when the wire is most softened and most prone to creep, the ratchet locking function of a retreat-stopping mechanism is matched, the bolt is prevented from retreating when the temperature decreases, the compensation displacement obtained at high temperature is permanently reserved, and the contact pressure attenuation caused by the mismatch of thermal expansion and cold shrinkage coefficients and metal creep of the traditional parallel groove wire clamp is overcome.

The invention discloses a radio frequency device adjusting device and method, the adjusting device comprises a shell, a base assembly, an integrated module, a deformation assembly and a connecting mechanism, the bottom of the base assembly is provided with a hollow structure, the integrated module is located in the shell and is provided with the connecting mechanism, one end of the connecting mechanism is connected with the integrated module, and the other end of the connecting mechanism is connected with the deformation assembly. The deformation assembly is arranged on the base assembly, and the base assembly can maintain the distance between the antenna unit and the external wearing contact surface within a first preset gap. The hollow structure of the base assembly can directly make contact with the external wearing contact surface, meanwhile, the deformation assembly can deform under heating of the integrated module and is matched with the connecting mechanism, and the deformation assembly can drive the integrated module to generate displacement relative to the hollow structure; therefore, the gap between the integrated module and the external wearing contact surface can be adjusted, and the distance between the radio frequency device and the skin can be actively and dynamically adjusted according to requirements.

The present disclosure provides a plug-in structure of a busbar and a terminal, and a motor vehicle, relating to the technical field of electrical connection elements. The plug-in structure of the busbar and the terminal includes: a busbar and a plug-in terminal, the busbar is provided with a plug-in portion; the plug-in terminal includes at least one terminal lamination; the terminal lamination includes a plug-in end, and a connection end for being connected to a cable, and the plug-in portion is constructed to be in plug-in fit with the plug-in end. According to the present disclosure, the technical problem that the busbar can only be connected to other terminals or electrical devices through copper terminals is solved.

The invention relates to a plug connector for transmitting a current, in particular a current greater than 100 A. The plug connector comprises a sword-shaped part and a clamping part. In this case, the sword-shaped part is designed to be inserted into the clamping part in an engagement direction in order to form the plug connector. In addition, the sword-shaped piece has the hardness smaller than that of the clamping piece. The clamping element has a first contact piece, which is designed to be engraved into a first main surface of the sword-shaped element, and a second contact piece, which is designed to be engraved into a second main surface of the sword-shaped element. In this case, the first main surface is oriented parallel to the second main surface in the joining direction.

The invention relates to an electrical contact element for mating with a mating contact (20), comprising at least one elastically deflectable spring element (14), which has at least one contact point (18) for contacting the mating contact and is designed to generate a contact force (96) acting on the mating contact during operation, according to the invention, at least one section (22) made of a shape memory material is integrated into at least one contact element, which can be converted from a first shape into a second shape depending on the temperature, the at least one contact point of the contact element in the unstressed state is in a first contact position in a first shape of the section made of the shape memory material and in a second contact position in a second shape of the section made of the shape memory material. The contact element according to the present invention can reliably hold the mating contact even under difficult environmental conditions to provide low contact resistance and to be easily mated with the mating contact.

Contact plug (20) for transmitting electrical energy by detachable contact with a contact socket (10), wherein the contact plug (20) has at least one claw-shaped element (50) which deforms due to temperature changes and effect a change in the contact normal force between the contact plug (20) and the contact socket (10), wherein the at least one claw-shaped element (50) has a chamfer in the form of a chamfer F at its extension end.

The invention relates to a contact partner combination for an electrically conductive connector, comprising a socket and a plug corresponding to the socket, and a wave sleeve arranged between the contact surfaces of the socket and the plug, wherein the plug is designed as a helical pin with the property of deforming upon temperature change, and the wave sleeve is designed both to transmit the temperature-induced deformation of the helical pin as a change in contact normal force to the contact surface of the socket and to limit the magnitude of the contact normal force by elastic deformation. The invention further relates to a connector with such a contact partner combination.

An electrical contact element for mating with a mating contact includes at least one elastically deflectable spring element which has at least one contact point for contacting the mating contact and is designed to generate a contact force acting on the mating contact during operation, at least one section made of a shape memory material being integrated into the at least one contact element, which can be transformed from a first into a second shape depending on the temperature, wherein the at least one contact point in the force-free state of the contact element is located in the first shape of the section made of a shape memory material at a first contact position and in the second shape of the section made of a shape memory material at a second contact position. The contact element is able to reliably hold a mating contact even under difficult environmental conditions, to provide a low contact resistance and to be easily mated with the mating contact.

An electrical connector for connecting electrical conductors in an aircraft includes a pin having a first contact surface and a socket to receive the pin. The socket has a second contact surface contacting a first contact surface of the pin when the pin is in the socket. A securing part is positioned to apply a contact or clamping force pressing the contact surfaces against each other. The securing part includes a shape memory alloy to exist in a martensite an austenite phase depending on temperature of the securing part, wherein the securing part assumes a first pre-set shape when the temperature is below a first temperature threshold, and a second pre-set shape when the temperature is above a second temperature threshold higher than the first temperature threshold, wherein the contact or clamping force applied by the securing part in the second pre-set shape is greater than in the first pre-set shape.

The purpose of the present invention is to obtain high connection reliability between a connection member and a mating connection member, and to enable easy connection work. The electrical connection unit is connected to a counterpart-side connection member, and is provided with: a connection member that can be brought into contact with the counterpart-side connection member; and a biasing member that imparts a contact pressure between the counterpart connecting member and the connecting member, the biasing member being configured from a shape memory alloy, the shape of the shape memory alloy being memorized so that the contact pressure is increased by temperature rise.

Provided is a quick power connection structure, which relates to the technical field of power connection, and comprises a cable and a quick connection member connected to the cable, wherein the cable comprises an insulator and a conductor, the quick connection member comprises conductive pins and an extrusion member, and the extrusion member is provided with a limiting structure, so that the conductive pins are unable to be continuously pierced into the cable by the extrusion member, and power connection positions at end portions of a plurality of conductive pins pierced into the cable are connected with corresponding conductor layers respectively; and an outer surface of a body portion of the conductive pin penetrating through the conductor layer is an insulator, so that the power connection position at the end portion of the conductive pin is in contact power connection with a target conductor layer.

The present embodiment relates to a shape memory alloy (SMA) actuator that requires a reduced number of materials for manufacturing the actuator. In some cases, the elements of the SMA actuator may include disposing a dielectric material on the actuator via an injection molding process. In other cases, the SMA actuator may position the SMA wire over a base of the SMA actuator without using any dielectric material. In a first example, an SMA actuator may include a bracket and a base. The base may include a fixed end secured to the bracket, a free end, a beam connecting the fixed end and the free end, and at least one SMA wire. The SMA actuator may further include an insulator including a dielectric material to electrically isolate the set of electrical contacts at the fixed end.

The present embodiments relate to a shape memory alloy (SMA) actuator with a reduced number of materials for manufacturing the actuator. In some instances, elements of the SMA actuator can comprise a dielectric material disposed on the actuator via an injection molding process. In other instances, the SMA actuator can dispose SMA wires above a base of the SMA actuator without the use of any dielectric material. In a first example, an SMA actuator can include a carriage and a base. The base can include a fixed end fixed to the carriage, a free end, a beam connecting the fixed end and the free end, and at least one SMA wire. The SMA actuator can also include an insulator comprising a dielectric material electrically isolating a set of electrical contacts at the fixed end.

The invention belongs to the technical field of electric power fittings, and particularly relates to a high-strength parallel groove clamp and a bolt. Comprising a first clamp body and a second clamp body which are oppositely arranged and are matched to form a wire clamping channel; the fastening assembly is connected with the first clamp body and the second clamp body and used for providing initial clamping force; by integrating the thermosensitive driving piece which is restrained in the radial direction, abnormal temperature rise of the wire is directly converted into axial clamping force, the maximum mechanical gripping force is provided at the high-temperature moment when the wire is most softened and creeps most easily, the ratchet wheel locking function of the retaining mechanism is matched, the bolt is prevented from retreating when the temperature is reduced, compensation displacement obtained at the high temperature is permanently reserved, and the reliability of the wire is improved. Contact pressure attenuation caused by mismatching of thermal expansion and cold contraction coefficients and metal creep of a traditional parallel groove clamp is overcome.

The present invention refers to an electrical contact element system (1) comprising a first contact element (10) and a second contact element (11) for mutual electrical contacting in a pair of electrical connectors, wherein the first contact element (10) comprises a first material and wherein the second contact element (11) comprises a second material, wherein first material and second material are configured be brought them into electrical contact to conduct a current in a connected state, wherein the first material has a reduced resistivity - particularly with an increased conductivity - compared to the second material.

A terminal having memory function, including a memory contact section (3) that includes a plurality of contact claws (31). All or part of the contact claw (31) is made of a memory alloy. The plurality of contact claws (31) are arranged at intervals in a circumferential direction of the memory contact section (3), and the plurality of contact claws (31) are capable of radially contracting. The terminal having memory function can realize a butting without an insertion force, and ensure a contact area and a contact force between a terminal and a mating terminal by a temperature rise during working, and improve contact reliability. Since the insertion force is not required, the work is easier and the working efficiency is improved.

The purpose of the present invention is to obtain high connection reliability between a connection member and a pin terminal, and to enable easy connection work. An electrical connection unit connected to a pin terminal is provided with a connection member having a first clamping plate portion, a second clamping plate portion facing the first clamping plate portion, and a connection support portion connecting the first clamping plate portion and the second clamping plate portion, and a biasing member biasing the first clamping plate portion and the second clamping plate portion in the approaching direction. The first clamping plate part comprises a first contact part which is in contact with the pin terminal, the second clamping plate part comprises a second contact part which is in contact with the pin terminal on the side opposite to the first contact part, the force applying component applies force to the first clamping plate part and the second clamping plate part in the approaching direction, and contact pressure relative to the pin terminal is applied from the first clamping plate part and the second clamping plate part. The biasing member is configured from a shape memory alloy that memorizes the shape so that the contact pressure is increased by temperature rise.

The present embodiments relate to a shape memory alloy (SMA) sensor being part of a switch. For instance, an SMA sensor can include an actuator configured to engage with a locking mechanism that modifies the resistance of the SMA sensor when the locking mechanism is in the locked position. The resistance of the SMA sensor can be unmodified by an external magnetic field, increasing reliability of the SMA sensor resistance determining a state of the locking mechanism. Another example, SMA sensor is an SMA wire being in contact with a locking mechanism in the locked position, thereby increasing a resistance of the SMA wire in the locked position.

The utility model discloses power equipment with heating and resistance reducing functions, which relates to the technical field of transformer terminals and comprises a bolt, a nut, a nanometer filling metal sheet, a memory alloy gasket, a flat gasket and a terminal plate. According to the utility model, when the temperature rises, the memory alloy gasket is matched to automatically output pressure to enable the two terminal plates to be tightly attached, and at the moment, the nanometer filling metal sheet is liquefied to be automatically filled in a gap between the terminal plates to form a conductive layer, so that the conductive efficiency between the metal plates is improved; through the characteristics of the memory alloy gasket, the temperature rises to automatically output pressure so as to realize close contact, the contact surface of the terminal board is increased, the resistance is reduced, and the purpose of self-healing cooling of a heating point is achieved. And the used titanium alloy bolt has excellent high-temperature resistance, strong electromagnetic environment resistance and corrosion resistance and has high strength superior to that of carbon steel, and the bolt cannot be loosened due to corrosion or thermal expansion due to the extremely high stability of the titanium alloy bolt.

The utility model relates to a connecting device for electrically connecting two structural elements (2, 3) of a motor vehicle, which is provided with at least one screw element (5) through which the structural elements (2, 3) can be connected with each other in a force-fitting and / or form-fitting manner under the condition of forming an electric connection structure (6), according to the invention, at least one intermediate element (10) is provided, which is designed separately from the screw element (5), is arranged on the screw element (5) and consists of a shape memory alloy (9), by means of which the structural elements (2, 3) can be connected to one another at least in a force-fitting manner.

An SMA subassembly includes at least one body portion (3) which holds apart a pair of crimping sections / connecting members (10) which at least partially crimp or weld to a length of SMA wire (20) slack between the crimping sections / connecting members. The slack of the SMA wire in the SMA subassembly can subsequently be adjusted and / or the SMA subassembly can be used to manufacture an SMA assembly in which at least one length of slack shape memory alloy wire is connected between a static portion and a movable portion, thereby providing the advantage of increasing the available travel of the SMA wire.

The present embodiments relate to a shape memory alloy (SMA) actuator with a reduced number of materials for manufacturing the actuator. In some instances, elements of the SMA actuator can comprise a dielectric material disposed on the actuator via an injection molding process. In other instances, the SMA actuator can dispose SMA wires above a base of the SMA actuator without the use of any dielectric material. In a first example, an SMA actuator can include a carriage and a base. The base can include a fixed end fixed to the carriage, a free end, a beam connecting the fixed end and the free end, and at least one SMA wire. The SMA actuator can also include an insulator comprising a dielectric material electrically isolating a set of electrical contacts at the fixed end.

The invention discloses an integral mounting module for a memory alloy wire and a pneumatic control device.The integral mounting module for the memory alloy wire comprises a terminal restraint frame, the terminal restraint frame is provided with a fixing unit matched with an electric connection terminal, and the electric connection terminal is used for being connected with the memory alloy wire and electrically connected with a circuit board; and the terminal restraint frame is an insulating part. The integrated installation module for the memory alloy wire is used for installing the electric connection terminals, synchronous butt joint of the multiple electric connection terminals and the circuit board can be achieved, the assembling takt is shortened, and the production efficiency is improved.