404results about "Contacts" patented technology

In accordance with an embodiment, a microelectromechanical system (MEMS) switch device includes: a substrate; a switching membrane disposed above the substrate; a pull-in electrode disposed above the switching membrane; a metal contact disposed on the switching membrane; and a pull-back electrode disposed below the switching membrane, wherein the switching membrane is movable between an open position and a closed position, and wherein in the closed position, the metal contact electrically connects two RF signal lines.

This disclosure discloses an operating mechanism including a housing; a drive shaft parallel to the pivot axis of a moving contact, the drive shaft passing through and protruding from a moving contact assembly, the moving contact assembly being pivotable relative to the housing about the pivot axis of the moving contact; a pull rod configured to move between a first position and a second position; a pivot plate mounted to be pivotable relative to the housing about the pivot axis of the moving contact, the pivot plate having a first hole for connection with the drive shaft; a first pivot member, one end of which is pivotally connected to the housing; and a second pivot member, one end of which is pivotally connected to the other end of the first pivot member and the pull rod, the other end of which is pivotally connected to the pivot plate at a second hole in the pivot plate, so as to drive the pivot plate to pivot about the pivot axis of the moving contact, and thereby drive the moving contact assembly to pivot about the pivot axis of the moving contact. The distance between the second hole and the pivot axis of the moving contact is less than the distance between the pivot axes of the two ends of the first pivot member.

A relay 1 comprises a first fixed contact 7,15 (figure 1), a contact arm 8 having a first movable contact 9,14, and an electromagnetic drive unit 2 having an armature 3 and a yoke 4. A connector 10 (f

The invention relates to the technical field of metal manufacturing equipment, and particularly discloses a feeding device of a silver-copper alloy contact re-pressing machine, which comprises a workbench, and further comprises a feeding mechanism movably mounted on the upper surface of the workbench; and the precision control mechanism is fixedly mounted in the feeding mechanism. According to the feeding device of the silver-copper alloy contact re-pressing machine, the feeding operation of a contact blank can be automatically completed through the arranged feeding mechanism, the problem that the production efficiency is not high due to the fact that manual filling needs to be frequently used in traditional equipment is solved, meanwhile, the production safety is greatly improved, and the feeding device is of an independent structure and is convenient to operate. The automatic feeding device is simple in structure and capable of automatically matching with different production lines, applicability of the automatic feeding device is greatly improved, meanwhile, contact blanks are fed into a mold after preparation is completed, automatic continuous production efficiency of the automatic feeding device is greatly improved, and the problem that defective products are generated due to the fact that excessive contact blanks are fed at a time when a leakage groove is opened is solved.

The invention provides a method for driving a five-terminal electromagnetic relay, which can inhibit the generation of freezing on the NC contact side. In a method for driving a five-terminal electromagnetic relay, the ambient temperature of the electromagnetic relay is acquired in a state in which a movable contact is in contact with a first fixed contact when the relay is operated on, and when the ambient temperature reaches a predetermined temperature at which freezing is likely to occur on a second fixed contact, the electromagnetic relay is driven at a predetermined timing. After the relay operation is instantly turned off and the movable contact is brought into contact with the second fixed contact, the relay operation is immediately recovered to be turned on.

The utility model discloses a novel high-voltage auxiliary switch, which relates to the technical field of switches and comprises a shell, an upper cover, a push rod, a binding post, a reset spring, a static contact, a touch assembly, a pin shaft and the like. When the moving contact and the static contact are in a disconnected state, the switch can form a dual-port structure between the two static contacts. The unique design can effectively improve the power frequency withstand voltage value of the port between the two static contacts under the condition of a small structural volume. Compared with a traditional high-voltage auxiliary switch, the high-voltage auxiliary switch has the advantages that the risks of insulation breakdown and arc reignition are reduced due to the larger contact breaking distance, the stable and reliable electrical performance in a high-voltage environment is ensured, the safety and stability of equipment operation are greatly improved, and the conditions of equipment damage and production interruption caused by electrical faults are reduced.

Provided is a relay, comprising a contact container (10), a pair of static contact lead-out terminals (20), a first magnetic conductor (40), a push rod assembly (50), and a movable contact assembly (53). The first magnetic conductor (40) comprises a connecting portion (410) and a magnetically conductive portion (420). The push rod assembly (50) comprises a rod portion (51) and a second magnetic conductor (60). The second magnetic conductor (60) is staggered with the magnetic conductive portion (420) along an axial direction of the rod portion (51), and corresponds to a connecting portion (4110) The movable contact assembly (53) is movable between a first position and a second position relative to a support base (52) along the axial direction of the rod portion (51), and the movable contact assembly (53) comprises a movable reed (54) and a third magnetic conductor (55).The distance between the third magnetic conductor (55) and the connecting portion (410) is greater than the distance between the third magnetic conductor (55) and the magnetic conductive portion (420).

The invention provides a preparation method of a high-performance low-inclusion copper-chromium alloy contact material, and relates to the technical field of preparation of copper-chromium alloy contacts, and the preparation method comprises the following steps: weighing, proportioning and taking chromium powder and a copper material, treating the chromium powder and a copper block before alloy preparation, preparing a copper-chromium alloy, processing and preparing the copper-chromium alloy contact, and sealing and packaging the copper-chromium alloy contact. The copper-chromium alloy contact is prepared by adopting a vacuum infiltration method, compared with a traditional preparation method, the whole preparation process of the vacuum preparation method is in a vacuum environment, mixing of gases such as oxygen and nitrogen in the preparation process can be effectively avoided, formation of impurities such as oxides and nitrides in the preparation process of the copper-chromium alloy is avoided, and the copper-chromium alloy contact is prepared by adopting the vacuum preparation method. According to the preparation method, the purity of the copper-chromium alloy is reduced, the prepared copper-chromium alloy can have high density, the internal structure of the produced alloy can be uniform, then the alloy has higher strength and hardness, and residual gaps existing in the alloy prepared through a traditional preparation method are avoided.

A high-performance clamping piece type auxiliary switch belongs to the technical field of auxiliary switches. The front mounting plate, the front cover plate, the plurality of same base plate units, the rear cover plate and the rear mounting plate are sequentially connected through long countersunk screws, the driving shaft simultaneously penetrates through the middle parts of the front mounting plate, the front cover plate, the base plate units, the rear cover plate and the rear mounting plate, and each base plate unit comprises an upper base plate and a lower base plate which are the same; each substrate is provided with two movable contact pieces, two static contact pieces and a shaft gasket, a magnetic block mounting groove is formed in the middle of each substrate, a magnetic block is arranged in the magnetic block mounting groove of the upper substrate of each substrate unit, and the four movable contact pieces and the two shaft gaskets of each substrate unit are riveted together through brass rivets. According to the utility model, the through-current capability and the on-off instant stability of the contact can be effectively improved, the magnetic blow-out function and the 360-degree time sequence switching capability are high-efficiency, and the accurate indication function is also realized.

The invention provides a silver-nickel-titanium electric contact material and a preparation method thereof. By adopting a nickel-titanium alloy material as a main additive, the welding resistance of the electric contact material is improved while the good machinability of the material is maintained. NiTi is introduced as a main additive to be added into an Ag matrix to improve the fusion welding resistance of the material, meanwhile, a small amount of trace copper is also added to mainly improve the wettability of the material, and the C powder and the titanium carbide powder improve the fusion welding resistance of the material. In addition, a powder metallurgy process is adopted, material proportion is easy to control, process flow is short, and cost is low. The rapid plasma electric spark sintering speed is high, the time is short, and the material density is high.

The invention discloses a three-loop high-voltage contactor with normally-open or normally-closed auxiliary contacts, and relates to the technical field of high-voltage contactors, an auxiliary movable contact spring in an auxiliary loop is arranged in the middle of a fixed support, and an auxiliary terminal outgoing line and a wire are jointly led out from the middle of a product; a brand-new high-voltage contactor internal structure frame is shown, the requirements of line and signal export of a user are met, installation and use are convenient, and the technical problem that the lead mode in an existing high-voltage contactor is limited is solved. A static contact, a first movable contact piece and a second movable contact piece are arranged, the static contact comprises a first main contact, a second main contact, a third main contact and a fourth main contact, and the first main contact and the second main contact correspond to the first movable contact piece to form a first main loop; and the third main contact and the fourth main contact are arranged corresponding to the first movable contact piece to form a second main loop, so that the product is provided with two main loops at the same time to realize switching of a main current load loop.

A relay includes an insulating cover having a contact chamber and a pair of first through holes in communication with the contact chamber; a pair of static contact leading-out terminals passing through the pair of first through holes; a fixing member including a fixing part and a connector with a tubular structure, the connector is fixedly connected between the insulating cover and the fixing part; a moving part within the contact chamber and movably connected to the fixing member; a first magnetizer within the contact chamber and connected with the moving part; and a movable member within the contact chamber and including a movable contact piece. The first magnetizer is movable relative to the movable member through the moving part and is configured to adjust a distance between the first magnetizer and the movable member according to a value of a current flowing through the movable contact piece.

To provide an alloy and a wire, a strip or a probe needle which have a high electrical conductivity and, at the same time, a high degree of hardness, but which are simultaneously simple to produce and have as high an oxidation resistance as possible on the surface.SOLUTION: The invention relates to a palladium-copper-silver alloy with palladium as the main component, wherein the palladium-copper-silver alloy has a weight ratio of palladium to copper of at least 1.05 and at most 1.6 and has a weight ratio of palladium to silver of at least 3 and at most 6, and wherein the palladium-copper-silver alloy contains more than 1 wt % and up to a maximum of 6 wt % of ruthenium, rhodium or ruthenium, and rhodium and contains, as the remainder, palladium, copper and silver and at most 1 wt % of other metallic elements including impurities.SELECTED DRAWING: Figure 2

The invention discloses a silver-saving type AgSnO2In2O3 contact material and a preparation method of the silver-saving type AgSnO2In2O3 contact material, and belongs to the technical field of silver-based contact materials. The preparation method of the contact material comprises the following steps: firstly, performing high-energy ball milling on specially prepared ITO conductive ceramic powder and ATO conductive ceramic powder according to the mass ratio of 1: 1 to obtain ITO. ATO composite conductive ceramic powder, and performing ball milling on the obtained ITO. ATO composite conductive ceramic powder and AgSnCu alloy powder according to the mass ratio of 100: 12-100: 16; and carrying out isostatic compaction, oxidation, sintering and extrusion on the obtained AgSnO2In2O3 composite powder containing the composite conductive ceramic reinforced phase to obtain the AgSnO2In2O3 composite powder containing the composite conductive ceramic reinforced phase. The contact material prepared according to the method is low in resistivity and high in welding resistance, and the purpose of saving silver can be achieved.

Provided is an in-plane sliding parallel capacitive radio frequency, RF, switch based on a superlubric structure. The RF switch includes a substrate, first to third drive components, an insulating layer, and a sliding component. Where a drive voltage is applied between the first and second drive components, the sliding component slides to the top of the first and second drive components under the action of a horizontal force; in this case, relatively large capacitance is formed between the first and second drive components and the sliding component, a RF signal is almost completely reflected, and the transmission is cut off. Where the drive voltage is applied between the second and third drive components, the sliding component slides to the top of the second and third drive components under the action of a horizontal force; in this case, no facing area between a first drive electrode and the sliding component exists in a vertical direction, the capacitance is rather small, and the RF signal may be transmitted basically without loss.

In one embodiment, a multi-switch contactor assembly with a pre-charge system is disclosed. The multi-switch contactor also includes a switch array and an actuator assembly configured to actuate each switch in the switch array. In this embodiment, the switch array includes a first switch configured to connect a first battery device to an electrical circuit and a second switch configured to connect a second battery device to the electrical circuit. The switch array also includes a third switch configured to connect the first battery device and the second battery device in series to the circuit and a fourth switch configured to connect the pre-charge resistor to at least one of the first battery device and the second battery device.

The utility model relates to the technical field of relays, and discloses a metal push piece for a relay, which comprises a base and further comprises a framework fixedly mounted in the base, and an armature structure is arranged outside the framework; the auxiliary movable reed and the auxiliary static reed are fixedly mounted in the base; the moving plate is fixedly installed in the base, a reed is arranged outside the moving plate, and a three-bow piece is arranged outside the reed; the static sheet is fixedly mounted in the base; the protection assembly is arranged in the base; the top cover is located above the base, and the top cover and the base are connected in a clamped mode. According to the utility model, through the arrangement of the protection assembly, the rigidity of the push piece can be enhanced while the size of the push piece is reduced; meanwhile, heat is reduced, the safety of the relay can be improved, the service life of the relay is prolonged, and the overall practicability of the relay is effectively improved.

The utility model discloses a normally closed safety switch, and relates to the technical field of safety switches. The normally-closed safety switch comprises a safety switch main body, the safety switch main body comprises an outer shell and two metal contact pieces symmetrically and fixedly arranged on the inner wall of the outer shell, and the safety switch main body further comprises a metal connecting piece arranged in the outer shell and two metal contacts symmetrically and fixedly arranged on the upper surface of the metal connecting piece; and the cut-off assembly is used for cutting off power when a dangerous situation occurs. According to the utility model, through the arrangement of the safety switch main body and the cut-off assembly, the two metal contacts on the upper surface of the metal connecting sheet can always contact and abut against the surfaces of the two metal contact sheets respectively in the actual use process of the safety switch, so that the purpose of normally closing is realized; the safety switch can achieve the purpose of quick power-off, can be used in various conditions, and is high in practicability.

The disclosed technology relates generally to switching devices and more particularly to switching devices employing micro-electromechanical system (MEMS) switches. The switching devices can serve as circuit breakers for protecting electrical systems against certain electrical events. The switching devices can be configured to monitor and control one or both the MEMS switches and the electrical systems being protected. The disclosed technology additionally relates to systems including the switching devices and methods of using the switching devices.

The invention belongs to the technical field of alloy materials, and particularly relates to a high-conductivity ablation-resistant graphene copper-tungsten compact composite material and a preparation method and application thereof. According to the preparation method of the high-conductivity ablation-resistant graphene-copper-tungsten compact composite material, graphene, copper and tungsten are combined through in-situ reaction, interface bonding among graphene, copper and tungsten is high, graphene is not prone to agglomeration in a matrix, the reinforcement phase effect of graphene can be effectively achieved, and the ablation resistance of the graphene-copper-tungsten compact composite material is improved. The graphene copper-tungsten alloy with high compactness, high conductivity and ablation resistance is obtained by matching with subsequent spark plasma sintering, hot extrusion and other hot processing technologies, and the performance requirements of the fields of high-voltage electric appliance switches, electrical contacts, electrode materials and the like on materials can be met; according to the preparation method, the mixing technology and the preparation technology of the graphene copper-tungsten alloy composite powder are improved, the high-performance graphene copper-tungsten alloy material can be provided, and the technical problem that in the prior art, the high-performance graphene copper-tungsten alloy is difficult to prepare is solved.

Device (1) for a motor vehicle for interrupting an electrical connection, comprising: - a first electrical connection (2); - a second electrical connection (3); - a coupling device (4) which is configured to electrically connect the first terminal (2) to the second terminal (3) in a first position (P1) and to electrically isolate the first terminal (2) from the second terminal (3) in a second position (P2); - a partially transparent covering (5) which covers the coupling device (4), characterized in that a) the coupling device (4) is configured to connect the first terminal (2) to a third electrical terminal in a third position and to electrically isolate the first terminal (2) from the third terminal in a fourth position, wherein a contacting device (6) is configured to electrically connect the first terminal (2) to the second terminal (3) and the third terminal to a fourth terminal either coupled or separately, or to electrically isolate the first terminal (2) from the second terminal (3) and the third terminal from the fourth terminal either coupled or separately, and / or b) the coupling device (4) has at least one actuator (8) which is configured to move the coupling device (4) from the first position (P1) to the second position (P2) and / or from the second position (P2) to the first position (P1).

The invention relates to a connector for a circuit breaker and a downstream contactor, wherein the connector is formed in one piece, wherein the connector enables the electrical connection between the circuit breaker and the downstream contactor and comprises at least one sensor, wherein the connector comprises an evaluation unit for the measured values ​​of the sensor, and wherein the connector comprises first contacts to the circuit breaker and second contacts to the downstream contactor in the same plug-in direction.

The invention belongs to the field of copper-tungsten materials, and particularly discloses graphene-coated aluminum oxide and a preparation method thereof, a copper-tungsten material and a preparation method thereof, and a contact material. The graphene-coated aluminum oxide has good interface bonding of alpha-Al2O3-O / C, has good mechanical property, heat-conducting property and electrical conductivity, is uniformly dispersed in the copper-tungsten alloy to form a binary reinforced phase, constructs an efficient carrier, load and heat transfer network in the copper-tungsten alloy, and improves the heat transfer efficiency of the copper-tungsten alloy. The hardness, the strength, the ablation resistance and the friction and wear resistance of the copper-tungsten material are enhanced; and then the copper-tungsten material is processed into the high-voltage circuit breaker contact material, so that the service life and the reliability of the high-voltage circuit breaker can be improved, and the high-voltage circuit breaker is more suitable for being applied to scenes needing frequent switching working conditions.

The breaker 1 comprises a fixed piece 2, a movable piece 4, a thermally-actuated element 5 and a resin case 10. The fixed piece 2 has an embedded portion 25 embedded in the resin case 10 in a region which overlaps with the thermally-actuated element 5 in a plan view viewed in the thickness direction. The resin case 10 has an outer peripheral portion 74 formed on the outer perimeter of a recessed portion 73, a first penetrating portion 75 penetrating the recessed portion 73 to expose the embedded portion 25 to the thermally-actuated element 5 side, an island portion 76 interposed between the fixed piece 2 and the thermally-actuated element 5 in the inside of the first through portion 75, and a connecting portion 77 connecting between the outer peripheral portion 74 and the island portion 76.

A high-speed input device of an embodiment includes a contact point portion, a drive mechanism portion, and an impact buffer portion. The contact point portion includes a drive electrode and a counter electrode. The drive mechanism portion includes a driving portion and a drive side urging portion. The driving portion applies a driving force in a first direction approaching the counter electrode with respect to the drive electrode during an input operation. The drive side urging portion applies a return force in a second direction separating from the counter electrode with respect to the drive electrode. The impact buffer portion includes a counter side urging portion and a counter side stopper. The counter side urging portion applies a return force in a second direction contacting the drive electrode with respect to the counter electrode. The counter side stopper regulates the displacement of the counter electrode in the second direction while the drive electrode and the counter electrode are separated from each other in a steady state.

The invention provides a preparation method of a high-performance CuCr electrical contact material for a high-voltage vacuum circuit breaker, and relates to the technical field of electrical contacts of high-voltage vacuum circuit breakers, and the preparation method comprises the steps of raw material preparation and proportioning, mechanical alloying activation pretreatment, spark plasma rapid sintering densification, solution treatment and aging treatment. High-purity electrolytic copper powder and high-purity chromium powder are selected, copper and chromium elements are subjected to mechanical alloying activation treatment under argon protection, the treated composite alloy powder is made into a compact copper-chromium sintered blank through pulse large current, and then the compact copper-chromium sintered blank is subjected to solid-liquid and aging treatment; according to the invention, the uniform mixing of copper and chromium elements is realized by adopting mechanical alloying, nearly full densification is completed at low temperature by combining with a spark plasma rapid sintering technology, grain coarsening is effectively inhibited, the production efficiency and the material performance are remarkably improved, and the breaking capacity, the electrical life and the operation reliability of a high-voltage vacuum circuit breaker are greatly improved by the CuCr electrical contact.

This invention relates to the field of fuse technology and discloses an intelligent electric drop-out fuse, comprising a support assembly, the support assembly including an insulating support, a fixing member fixedly connected to one side of the top of the insulating support, a moving contact piece fixedly connected to the inner side of the top of the fixing member, a solenoid coil electrically connected to the top of the moving contact piece, a fuse tube assembly mounted at the bottom of the moving contact piece, and a self-cleaning assembly fixedly connected to one side of the top of the fuse tube assembly, the self-cleaning assembly including a mounting plate, a slider mounted on the top of the mounting plate, and a scraper fixedly connected to the top of the slider. When the solenoid coil is energized, it generates a magnetic field, eliminating contact welding. The fuse tube assembly releases air, releasing the locking block and allowing the scraper to contact the contact. The self-cleaning mechanism, combined with the drop-out of the fuse tube assembly, prevents the fuse from failing to drop due to welding of the moving contact piece. The angle between the scraper and the top of the slider is between 60-75°, avoiding the problem of the fuse failing to drop due to welding of the moving contact piece.

The application discloses a pressing die for powder metallurgy process multilayer electric contact material with continuous silver layer on side surface and a pressing preparation method thereof. The die comprises an upper punch, a lower punch corresponding to the position of the upper punch and a die cavity platform arranged between the upper punch and the lower punch. The die cavity platform is provided with a square die cavity and four push die cavities located at four sides of the square die cavity. The square die cavity and the four push die cavities are connected to form a cross-shaped structure groove. The upper punch and the lower punch are matched with the shape of the square die cavity and are respectively located on the upper and lower sides of the square die cavity. The outer ends of the four push die cavities are respectively provided with hydraulic channels. Each push die cavity is respectively provided with a push die. One end of the push die extends into the hydraulic channel and is sealingly matched with the inner wall of the hydraulic channel. The other end of the push die is matched with the shape of the push die cavity and can slide in the horizontal direction in the push die cavity under the hydraulic action. The application has simple and reasonable structure, improves the mechanical life and the electrical life of the powder metallurgy process multilayer electric contact material in the use process.

The present invention relates to a pressure switch (1) comprising: - a first electrical conductor (3a) and a second electrical conductor (3b) located at a distance from the first electrical conductor (3a), - a plunger (5) comprising a third electrical conductor (3c), the plunger (5) being movable in translation relative to the first and second electrical conductors (3a, 3b) between: - a first position in which the third electrical conductor (3c) is not electrically connected to the first electrical conductor (3a) and the second electrical conductor (3b), - a second position in which the third electrical conductor (3c) is electrically connected to the first electrical conductor (3a) and the second electrical conductor (3b), - a deformable diaphragm (6) configured to move the plunger (5) between the first and second positions under the effect of a pressure variation exerted by a fluid. Figure for the abstract: Fig. 1

Microelectromechanical systems (MEMS) switches are disclosed. Parallel configurations of back-to-back MEMS switches are disclosed in some embodiments. An isolation connection of constant electrical potential may be made to a midpoint of the back-to-back switches. In some embodiments, a separate MEMS switch is provided as a shunt switch for the main MEMS switch. MEMS switch device configurations having multiple switchable signal paths each coupling a common input electrode to a respective output electrode are also disclosed. The MEMS switch device includes shunt switches each coupling a respective output electrode to a reference potential. The presence of a shunt switch coupled to an output electrode enhances the isolation of the signal path corresponding to that output electrode when the path is open.