168results about How to "Reliable electrical contact" patented technology

The invention provides a power-dissipation-free and energy-saving type start protector of a single phase AC motor and belongs to the technical field of refrigeration compressors. The power-dissipation-free and energy-saving type start protector comprises a shell, a shell cover, an overload protector, a power-dissipation-free starter and an external terminal mechanism. The shell is provided with an overload protector seat, a power-dissipation-free starter accommodation cavity, an external terminal mechanism cavity and a start controller accommodation cavity. The shell cover is provided with a first three-terminal jack and a second three-terminal jack. The overload protector is arranged in an overload protector accommodation cavity. The power-dissipation-free starter comprises a power-dissipation-free starter body and a start controller. The external terminal mechanism is matched with the external terminal mechanism cavity. The start protector is characterized in that the external terminal mechanism cavity comprises a first insertion cavity, a second insertion cavity and a third insertion cavity, the second insertion cavity is formed in the left side of the shell, and the bottom wall of the second insertion cavity is provided with a second shell insertion groove; the first insertion cavity and the third insertion cavity are formed in the right side of the shell, a first shell insertion groove is formed in the bottom wall of the first insertion cavity, and a third shell insertion groove is formed in the bottom wall of the third insertion cavity; the external terminal mechanism comprises a first insertion piece and a second insertion piece, the first insertion piece is matched with the second shell insertion groove in an inserted mode, and the second insertion piece is matched with the first shell insertion groove in an inserted mode.

A patterning method for the creation of two-dimensional nanowire structures. Nanowire patterning methods are used with lithographical patterning approaches to form patterns in a layer of epoxy and resist material. These patterns are then transferred to an underlying thin film to produce a two-dimensional structure with desired characteristics.

A contact probe comprises a tip portion for making contact with a subject surface, a supporting portion, and a spring portion for connecting the other two members. The tip portion has a corner portion whose radius of curvature is larger than that of the opposite corner portion that moves in the lead during the scrubbing by the pressing force. The insulating layer on the subject surface is sufficiently removed by the scrubbing to secure the electrical contact, and the amount of shavings is minimized during the dissociation of the contact probe. Formation of scratches on the subject surface is reduced. Another contact probe for a ball-shaped electrode has a tip portion with a recess, which has a protrusion and bottom. The protrusion breaks the insulating layer on the electrode to secure the electrical contact. The bottom makes contact with the electrode to prevent the protrusion from excessively biting the electrode.

There is provided a socket device (1, 1a-1g), comprising a plurality of conductors (2); a socket main body (4) coupled to the conductors to hold them together and defining a cavity (5) having an opening at least in one surface to expose part of the conductors so that an electric element (3, 13, 22, 40) can be connected to the conductors exposed in the cavity; and a cap (6, 6a-6n, 6p) having a cap main body (7) for covering at least part of the one surface of the socket main body and attached to the socket main body.

The invention discloses an energy-saving type single-phase alternating current machine starting protector, and belongs to the technical field of refrigerating compressor. The energy-saving type single-phase alternating current machine starting protector comprises a shell, a single-phase alternating current machine starter, a single-phase alternating current machine protector and a shell cover; a positive temperature coefficient thermistor cavity and a single-phase alternating current machine protector cavity are formed in a shell cavity; the single-phase alternating current machine starter comprises a positive temperature coefficient thermistor, a first pin and a second pin; the single-phase alternating current machine protector is arranged in the single-phase alternating current machine protector cavity; the shell cover is matched with the shell. The energy-saving type single-phase alternating current machine starting protector is characterized in that a plug-in piece is extended from a reed of the first pin, and a plug-in-piece hole, a first pin hole, a second pin hole and a protector pin hole are formed in the shell; a pair of bottom-wall top embossments are formed in the cavity bottom wall of the positive temperature coefficient thermistor cavity, side-wall top embossments are formed in the side cavity walls and the rear cavity wall, the lower portion of the positive temperature coefficient thermistor is supported by the pair of bottom-wall top embossments, the front side of the positive temperature coefficient thermistor is contacted with the front cavity wall top embossments, and the rear side of the positive temperature coefficient thermistor is contacted with the rear cavity wall top embossments. The energy-saving type single-phase alternating current machine starting protector has the advantages that the energy-saving effect is good, the size is small, and the weight is light; the installation is convenient; a mold structure is simplified; electric short-circuit is prevented; the assembling efficiency is high.

Solderless and durable electrical contacts may be made by growing carbon nanotube (CNT) or nanowire forests in a solderless manner directly on the contact surfaces of integrated circuits, PCBs, IC packages, hybrid substrates, contact carriers, rotor components, stator components, etc. The electrical contacts and methods may be employed in a variety of leaded and leadless electronic packaging applications on PCBs, IC packages, and hybrid substrates including, but not limited to, ball grid array (BGA) packages, land grid array (LGA) and leadless chip carrier (LCC) packages, as well as for making interconnections in “flip-chip” configurations, “bare die” configurations, and interconnection of integrated circuit die in multi-layer and “3-D” stacking arrangements.

The invention discloses an energy-saving integrated type single-phase alternating current motor protection device and belongs to the technical field of refrigeration compressors. The energy-saving integrated type single-phase alternating current motor protection device comprises a shell, a single-phase alternating current motor starter, a single-phase alternating current motor protector and a shell cover. A positive temperature coefficient thermistor cavity and a single-phase alternating current motor protector cavity are formed inside a shell cavity in an enclosed mode. The single-phase alternating current motor starter comprises a positive temperature coefficient thermistor, a first pin and a second pin, a first pin transition sheet and a second pin transition sheet extend from the first pin and the second pin respectively, and a first pin reed and a second pin reed are arranged on the first pin transition sheet and the second pin transition sheet respectively. The single-phase alternating current motor protector is arranged inside the single-phase alternating current motor protector cavity. The shell cover is matched with the shell and is provided with a grounding pin, a pin N and a pin L. The energy-saving integrated type single-phase alternating current motor protection device is characterized in that a pair of bottom wall protrusions are formed on the bottom wall of the positive temperature coefficient thermistor cavity, and the front wall and the back wall of the positive temperature coefficient thermistor cavity are both provided with side wall protrusions. The energy-saving integrated type single-phase alternating current motor protection device is good in energy-saving effect, small in size, light in weight, convenient and quick to install, simplified in structure and capable of preventing electrical short circuits, and guarantees the stability and reliability standards of the pins.

The invention discloses an energy-saving type power-consumption-free single-phase alternating current motor starting protector with structure improvement, and belongs to the technical field of refrigeration compressors. The energy-saving type power-consumption-free single-phase alternating current motor starting protector comprises a shell body, a shell cover, an overload protector, a power-consumption-free starter and an externally connected terminal mechanism, wherein an overload protector containing cavity, a power-consumption-free starter containing cavity, an externally connected terminal mechanism insertion cavity and a starting controller containing cavity are defined by the shell body; the shell cover is matched with the shell body; the overload protector is arranged in the overload protector containing cavity; the power-consumption-free starter comprises a power-consumption-free starter body and a starting controller; the externally connected terminal mechanism is matched with the externally connected terminal mechanism insertion cavity in an inserting mode. The energy-saving type power-consumption-free single-phase alternating current motor starting protector is characterized in that externally connected terminal mechanism insertion cavity comprises a first insertion sheet cavity, a second insertion sheet cavity, a third insertion sheet cavity and a fourth insertion sheet cavity. The externally connected terminal mechanism comprises a first insertion sheet, a second insertion sheet, a third insertion sheet, a fourth insertion sheet and a fifth insertion sheet. The first insertion sheet is matched with the first insertion sheet cavity in an inserting mode, the second insertion sheet is matched with the second insertion sheet cavity in an inserting mode, the third insertion sheet is matched with the third insertion sheet cavity in an inserting mode, the fifth insertion sheet is matched with the fourth insertion sheet cavity in an inserting mode, the fourth insertion sheet is in electrical connection with the overload protector, and the first insertion sheet and the third insertion sheet serve as transfer terminals to be connected with an externally connected power source and a capacitor.

The invention discloses an energy-saving integrated type single-phase alternating current motor starting protector and belongs to the technical field of refrigeration compressors. The energy-saving integrated type single-phase alternating current motor starting protector comprises a shell, a single-phase alternating current motor starter, a single-phase alternating current motor protector and a shell cover. A positive temperature coefficient thermistor cavity and a single-phase alternating current motor protector cavity are formed inside a shell cavity in an enclosed mode. The single-phase alternating current motor starter comprises a positive temperature coefficient thermistor, a first pin and a second pin. The single-phase alternating current motor protector is arranged inside the single-phase alternating current motor protector cavity. The shell cover is matched with the shell and is provided with a grounding pin, a pin N and a pin L. The energy-saving integrated type single-phase alternating current motor starting protector is characterized in that the single-phase alternating current motor protector comprises a base, a fixing seta, double metal sheets, electric heating wires, a first protector pin, a second protector pin, a movable contact reed and an ejection rod. The energy-saving integrated type single-phase alternating current motor starting protector has the advantages of being reliable in positioning, capable of improving installation efficiency and guaranteeing overall heating effects of the double metal sheets, convenient to manufacture and assemble, remarkable in energy-saving effect, and capable of simplifying a mould structure used for manufacturing the shell, preventing electrical short circuits, preventing the shell from deforming and being damaged due to heating and guaranteeing the stability and reliability standards of the pins.

The invention provides a soft belt type electromagnetic induction heater used for butt welding in pipeline engineering, which relates to the technical field of pipeline systems. The soft belt type electromagnetic induction heater comprises an induction heating ring. The invention is characterized in that high-temperature-resistance insulation fiber (7) and high-temperature flame-retardant cloth (8) are adopted to be covered outside a high-frequency soft cable (5) to be made into heating soft belts (1) in different specifications according to different diameters of steel pipes, both ends of the heating soft belts (1) are provided with purpose-made electric connectors (2) so that the high-frequency soft cable (5) forms a spiral wire heating ring, and the output current of a middle-frequencypower supply is communicated with both ends of the spiral wire for heating pipe openings. The invention has the advantages that the installation/dismounting operation of the soft belt type electromagnetic induction heater on/from the steel pipes is convenient, the use is safe and reliable, the problem of the existing middle-frequency induction heating technology in the large-caliber long oil transmission gas pipeline welding preheating construction is solved, and the requirement of high-efficiency welding construction of the engineering is met.

The invention discloses a flexible circuit board, a chip on film and a manufacturing method. The flexible circuit board for hot pressing comprises an insulating substrate with a strip edge; multiple pins for hot pressing are arranged on the insulating substrate; the flexible circuit board is characterized in that the pins for hot pressing are arranged along the strip edge of the insulating substrate from the two ends to the middle; and the space between adjacent two pins is gradually reduced. In the invention, after heat bonding, the spaces among the pins can be basically kept consistent, being equivalent to the expansion result of a liquid crystal panel, and thus sound electrical connection between the pins and the lead of the liquid crystal panel is guaranteed, and the electrical contact is more reliable.

The invention relates to a cylindrical accessory machining method and system for a metal mold. The method comprises the steps that firstly, surface induction quenching pretreatment is carried out on a blank of a roughly-machined cylindrical accessory, and a hardening layer is formed on the surface of the blank; secondly, the pulse current is exerted on the blank, pulse current tempering treatment is carried out on the hardening layer on the surface of the blank, and meanwhile turning machining is carried out to form a semi-finished accessory; and thirdly, the semi-finished accessory rotates, the pulse current is further exerted on the semi-finished product, electroplastic treatment is carried out on the surface layer of the semi-finished accessory, and ultrasonic peening rolling is carried out on the surface of the semi-finished product through an ultrasonic rolling device. The system is formed through refitting on a lathe and is suitable for machining guide columns and various metal rotation body accessories through the method. Compared with a traditional technology, according to the method, the overall mechanical performance, the surface quality and the surface smoothness of the surface layers of the guide columns can be obviously improved, the production procedure is greatly simplified, the production efficiency is improved, and the production cost is reduced.

The invention discloses a power connector, which comprises an insulating body with a slot formed in one side thereof, and conductive terminals arranged in the insulating body. Each conductive terminalhas an electrical contact at one end thereof, which is suitable for being in electrical contact with a bus-bar plug assembly inserted into the slot. The power connector further comprises a detectionterminal arranged in the insulating body. The detection terminal has an electrical contact at one end thereof, which is suitable for being in electrical contact with the bus-bar plug assembly insertedinto the slot. The electrical contact of the detection terminal is located at the back of the electrical contacts of the conductive terminals, so that the detection terminal electrically contacts thebus-bar plug assembly after the conductive terminals electrically contact the bus-bar plug assembly in the process in which the bus-bar plug assembly is inserted. Thus, the on/off time of a power supply system can be controlled according to the electrical connection state of the detection terminal. Therefore, electric arc between the conductive terminals and the bus-bar plug assembly is avoided during plugging and pulling of the bus-bar plug assembly, and the safety performance of the power connector is improved.

A relatively simple assembly and an economical manufacture for the electrical connection of electrical elements arranged in a group, especially electromagnets of valve units, using a multiple-pin electrical bridge connection in which the electrical connection proceeds from contacts of a plug on the input side to contacts of a socket on the output side. The socket is constructed so as to complement the plug. A two-pin or two-pole connection is preferably disposed on the external surface of the electrical bridge connection for connecting electrical elements. All of the electrical connections in the connection element extend three-dimensionally in the form of conductor paths. The connection element (1) is constructed in one piece comprising a plug (2) that forms a first portion, a socket (3) that forms a second portion and a base (4) disposed between the first and second portions and through which the conductor paths are guided.

The invention relates to a rotary electrical connection device, as well as the plug, the socket and the electrical connection method thereof. The electrical connection device comprises at least a plug and at least a socket, wherein the plug is provided with a plugging bolt, and at least two first metal contacts used for conduction and connection are respectively arranged on the plugging bolt; the socket is provided with a plugging bolt hole adapted to the plugging and the pulling of the plugging bolt, an insertion guide slot and a pull guide slot which are respectively arranged on the hole wall of the plugging bolt hole, and at least two second metal contacts used for the conduction and the connection; the insertion guide slot and the pull guide slot deviate by a first reservation angle along the aperture direction; the insertion guide slot corresponds to an insertion position, and the pull guide slot corresponds to a conduction position; the plugging bolt is inserted along the insertion guide slot in the insertion position, and rotated to the conduction position from the insertion position at the first reservation angle, so that the first metal contacts are in frictional contact with the second metal contacts; the plugging bolt is directly pulled out of the plugging bolt hole along the pull guide slot in the conduction position to ensure that the first metal contacts and the second metal contacts are separated and powered off.

The invention provides a molded coil which can reliably realize the electric connection between an electric terminal and an electric terminal socket of a socket assembly and the electric connection between a grounding terminal and a grounding terminal of the socket assembly so as to make a solenoid valve work reliably and a solenoid controlled valve using the same. The molded coil is used for driving a valve body of the solenoid valve, is formed by resin mould pressing and comprises a spool winded by coils, a pair of power supply electric terminals in electric connection with a terminal of the coils, a magnetic framework encircling the spool and a grounding terminal in connection with the magnetic framework, the grounding terminal being fixedly connected to inner walls of the magnetic framework.

The present invention provides a low-inductivity and mechanically stable connection between a DC link capacitor and a switching module for a power electronic system. To this end, the DC link capacitor and the switching module are connected to each other via an electrically conductive, flexible connection arrangement of electrically conductive strips or films. The individual strips or films are spaced from each other via suitable isolation media.