30results about How to "No poor contact" patented technology

The invention discloses a detection device and method for a LED chip and a device. The device comprises a blue film or a device substrate clamping jig, an annular array testing electrode, and a power supply and electrical parameter acquisition system. The annular array testing electrode is roller-shaped in appearance and provided with multiple groups of positive and negative test probes. When detection is carried out, the detection device is driven through a synchronous pulley to enable the positive and negative test probes to be exactly contacted with a positive electrode and a negative electrode of an LED chip to be tested or exactly contacted with a positive electrode and a negative electrode of a device, sweep currents are connected into a list of probes contacted with a substrate right now through a power supply in sequence, electrical parameters of the device are collected at the same time, and the synchronous pulley drives the device to roll to the next adjacent list of probes after collection is completed, and the next list of LED chips or devices are tested. The technical method is extremely high in efficiency, detection efficiency can be improved by 6-10 times compared with a traditional detection method, the detection device is applied to the LED industry, detection efficiency of LED products is greatly improved, equipment loss is reduced, product cost competitive advantages are promoted, and the detection device has good industrialization application prospects.

The present invention relates to coaxial connector with an RF switch. In particular, a housing 10 covered with an external conductor 17 is composed of upper and lower housings 11 and 12 . A fixed terminal 21 connected to an RF circuit is insert molded in the upper housing 11 , and a movable terminal 25 that is selectively brought into contact with the fixed terminal 21 is insert molded in the lower housing 12 . The movable terminal 25 comprises a fixed portion 26 fixed to the lower housing 12 ; a waist portion 27 extending upwardly from the fixed portion 26 at a first angle alpha1 and molded to the lower housing 12 ; and an elastic piece 28 bent from the tip end of the waist portion 27 at a second angle alpha2, extending into a space 15 of the housing, and being contact with the fixed terminal 21.

The invention discloses an online measurement method and device for anode current of an aluminum electrolytic cell. The online measurement method comprises the following steps: setting a plurality of main measurement points on an anode beam bus bar or a riser bus bar so as to obtain voltage values of the main measurement points, establishing a resistance network of the beam bus bar according to Kirchhoff voltage and current laws, and calculating the flowing-in current of each anode by utilizing the values of obtained voltage or voltage difference values. The real-time online dynamic acquisition on the flowing-in current of each anode of the aluminum electrolytic cell can be realized by using the measurement method and the device. The long-time stable and reliable online acquisition on the anode current can be realized when the online measurement method and device are applied to the aluminum electrolytic cell.

The invention discloses a non-contact trigger type net-liked electronic drum, which comprises a drum disc, drum leather, a data acquisition module, and a data processing module. The drum leather comprises a drum ring and a drum surface. The drum ring fixes the drum surface on the drum disc. The data acquisition module comprises a trigger and a conductive medium. The drum surface is prepared by laminating three layers of meshes. The trigger comprises a PCB board and a Hall effect sensor chip arranged on the lower surface of the PCB board. The conductive medium is a magnetic part, which is arranged between the first mesh layer and the second mesh layer or the second mesh layer and the third mesh layer. The magnetic part is tightly clamped by two mesh layers and is arranged on the center of the drum surface. The PCB board is arranged in the drum disc and is right under the magnetic part. The Hall effect sensor chip is connected to the data processing module. The provided electronic drum has the advantages that the trigger does not contact with the conductive medium directly, the bad contact is avoided, and accurate audio signals can be generated.

The invention relates to a continuous remote transmission floater type level gauge, which comprises a floater and a magnetic connector, the continuous remote transmission floater type level gauge is characterized in that: the level gauge further comprises an electrically conductive or magnetically inductive and electrically conductive guide rail, and at least one guide rail is covered by an insulating layer and wound with resistance wires; the magnetic connector comprises an insulating case and a magnetic shaft or a metal shaft arranged horizontally; for the magnetic floater type level gauge, the magnetic connector further comprises a magnetic steel; the magnetic shaft or the metal shaft moves up and down along the guide rail with the up-and-down movement of the floater under the action of magnetic force; and a corresponding liquid level value is obtained by measuring a resistance value in a conducting loop consisting of the guide rail, the magnetic shaft or the metal shaft so as to realize continuous remote transmission of liquid level data. The continuous remote transmission floater type level gauge can further comprise a fixed slide pulley, a balance weight, a connecting rope or a balancing magnetic connector brought by connection. The continuous remote transmission floater type level gauge has remarkable characteristics of simple structure and continuous remotely transmitted signal.

The invention discloses a non-contact electronic engine throttle comprising a throttle valve, a drive motor and a control unit, wherein the throttle valve comprises a valve body and a valve plate, the valve plate is arranged on the valve body by a valve plate shaft, the drive motor is controlled by the control unit to drive the valve plate through the valve plate shaft, the circumferential direction of the valve plate shaft is fixedly provided with magnet steel, a Hall device which is used for collecting a rotating angle of the valve plate shaft is axially and relatively fixed with the magnet steel on the throttle, and the signal output end of the Hall device is connected with the control unit. The engine throttle adopts a programmable Hall chip, improves the contact potential output form of the traditional resistance type electronic throttle, controls and outputs non-contact potential changes, has no mechanical wear when used, has no loose contact phenomenon, greatly prolongs the service life of the electronic throttle valve, saves the cost and increases the control accuracy.

The invention discloses a terminal structure which is integrally formed by punching and comprises a hollow terminal head which is formed on a side wall with a butt seam and provided with a butting portion recessed toward the interior of a hollow terminal, a hollowed-out position is arranged on a side wall opposite to the butting portion and provided with an elastic limiting piece, a root of the elastic limiting piece is fixedly connected with an edge of the hollowed-out position, and the other end of the elastic limiting piece extends toward the interior of the hollow terminal in a suspended manner. The butting portion and the elastic limiting piece are simultaneously arranged on the head of the hollow terminal, so that the requirement of close contact of a plug and the terminal is met, plug in-and-out force is more stable when the plug is plugged in and out, and poor contact is avoided. In addition, contact area of the plug and the terminal is increased, so that heat concentration is eased while larger current can be resisted with no heat generated, and the service life of the terminal is effectively prolonged.

The invention relates to a constant-voltage electric brush device of a motor, comprising a brush box, an electric brush mounted inside the brush box and a brush rod penetrating through the brush box. The brush box is fixed on the brush rod and screwed by nuts and tightening bolts; a constant-voltage spring which is a rigid spring is mounted at the rear part of the electric brush and can support the electric brush to get in contact with a collecting ring; since the constant-voltage spring is rigid, the curvature radius and the number of circles of the constant-voltage spring both can meet the requirement on rigidity, and especially when abrasion is generated, the electric brush generates tiny axial displacement, the pressure of the constant-voltage spring only changes slightly, but the pressure is still in an allowed pressure control range without causing poor contact between the electric brush and the collecting ring. Therefore, the electric brush and the collecting ring are in tight contact all the time to ensure the favorable operation of the motor.

It is an object of the present invention to provide an electric connector for a circuit board and an electric connector assembly including the same, the electric connector having a simple configuration, being easily handleable, and including terminals having connecting portions with which a shield body is not in contact while being in use.An electric connector (10, 50, 210, 310, 350) for a circuit board, capable of being mounted on a surface of a circuit board, includes a housing (11, 51) that is capable of being covered by a tube-shaped or cover-shaped electrically conductive shield body (90, 190, 290, 390); terminals (30, 70) each having a solder connecting portion and positioned on a side of the housing (11, 51) that is to be attached to the circuit board, the solder connecting portion being capable of being soldered to the circuit board; and electrically conductive shield bases (40, 80) attached to an outer surface of the housing (11, 51). Each shield base (40, 80) includes an attached portion (41, 81), a solder ground portion (42, 82), and a holding portion (43, 83).

Provided are: an active matrix substrate having a highly reliable wiring connection structure; a method for producing same; and a display device. A first metal wiring 122 and a second metal wiring 125are electrically connected via an IGZO layer 124 which has been made conductive. When the connection is formed, the second metal wiring 125 and an ITO layer 109 are separated and not being in contactwith each other since a passivation layer 107 and an organic insulating film 108 are formed between the second metal wiring 125 and the ITO layer 109. This configuration prevents contact failure dueto electric corrosion occurring between the ITO layer 109 and an aluminum layer 125a of the second metal wiring 125, and thus enables providing of a highly reliable wiring connection structure.

The invention discloses an electric screwdriver. The electric screwdriver comprises a hollow cylindrical outer shell (1), a motor (7), a gear output shaft (2) connected with the motor (7), a tail cover (3), a battery (4) and a negative electrode contact chip (15). The tail cover (3) is arranged at the end, far away from the gear output shaft (2), of the outer shell (1), and the maximum diameter of the outer shell (1) ranges from 24 millimeters to 35 millimeters. The electric screwdriver further comprises a special-shaped spring (8) and a battery ring (14), wherein the special-shaped spring (8) is connected with the battery (4) and is arranged inside the tail cover (3), one end of the battery ring (14) is connected with the special-shaped spring (8), and the other end of the battery ring (14) is connected with the negative electrode contact chip (15). The tail cover (3) is connected with the outer shell (1) in a clamping mode. The electric screwdriver is convenient to install and capable of working in narrow space, bad contact cannot be generated, and the service life of the electric screwdriver can be prolonged.

The invention discloses soft calendering roller equipment for improving the smoothness of paper and a soft calendering method. The soft calendering roller equipment comprises a soft calender roll device body, a hydraulic oil pump, hydraulic oil cylinders, an electromagnetic valve, a hydraulic oil pipe, a switching power supply, temperature control switches, electric heating pipes, a self-inductionpower generation heating mechanism, a pressure monitoring switch and a data processing module. The plurality of electric heating pipes are respectively arranged in an upper soft calendering roller outer layer and a lower soft calendering roller outer layer; the temperature control switches are respectively arranged in holes of the upper soft calendering roller and the lower soft calendering roller; shaft rods and bearings are arranged in the upper soft calendering roller and the lower soft calendering roller; a plurality of electromagnetic coils are respectively arranged on the inner layers of the upper soft calendering roller and the lower soft calendering roller; two permanent magnets respectively sleeve outside the shaft rods, the hydraulic oil cylinders are installed below the left side and the right side of the upper portion of the rack, the hydraulic oil cylinders are connected with the upper ends of bearing seats on the left side and the right side, the switching power supply and the data processing module are installed on a circuit board, and the pressure monitoring switch is installed below the bearing seat at the upper left end. The soft calendering method of the soft calendaring roller equipment is divided into four steps. According to the invention, the purposes of flattening, calendaring and shaping of finished paper are ensured.

The invention discloses a detection device and method for a LED chip and a device. The device comprises a blue film or a device substrate clamping jig, an annular array testing electrode, and a power supply and electrical parameter acquisition system. The annular array testing electrode is roller-shaped in appearance and provided with multiple groups of positive and negative test probes. When detection is carried out, the detection device is driven through a synchronous pulley to enable the positive and negative test probes to be exactly contacted with a positive electrode and a negative electrode of an LED chip to be tested or exactly contacted with a positive electrode and a negative electrode of a device, sweep currents are connected into a list of probes contacted with a substrate right now through a power supply in sequence, electrical parameters of the device are collected at the same time, and the synchronous pulley drives the device to roll to the next adjacent list of probes after collection is completed, and the next list of LED chips or devices are tested. The technical method is extremely high in efficiency, detection efficiency can be improved by 6-10 times compared with a traditional detection method, the detection device is applied to the LED industry, detection efficiency of LED products is greatly improved, equipment loss is reduced, product cost competitive advantages are promoted, and the detection device has good industrialization application prospects.

An electronic contactless tapping switch for electric power transformer is characterized by use of solid relay. Its advantages are no mechanical operation, electric arc and flutter, high insulating performance and switching speed, small size and low cost.

The present invention discloses a waterproof and dustproof low-voltage switch cabinet, which comprises a cabinet body, a dustproof strip, a waterproof board and a water isolation foot support. A bus duct is disposed in the cabinet body, a main switch is disposed at lower end of the bus duct, a branch switch is disposed at lower end of the main switch, an isolating switch is disposed at lower end of the branch switch, a partition plate is disposed at lower end of the isolating switch, a ground bus is disposed under the partition plate, a ground switch is disposed at lower end of the ground bus,a wire inlet end is disposed on a side of the cabinet body away from the bus duct, and a current sensor is arranged on the wire inlet end away from a side of the bus duct. The switch cabinet has following beneficial effects: the switch cabinet realizes that the low-voltage switch cabinet is both waterproof and dustproof, ensures that the low-voltage switch cabinet does not cause an accident due to water leakage, does not cause aging of wires and poor contact due to a large amount of dust entering the switch cabinet, improves safety protection capability of the switch cabinet, and prolongs usage life and stability.

The invention relates to the technical field of washing machines, in particular to a waterproof main control panel of a washing machine. The waterproof main control panel comprises a decorative plateon the front side of the main control panel and a computer board box on the rear side of the main control panel. A computer board is arranged in the computer board box, the decorative plate is provided with a button, the rear side of the button penetrates the main control panel to contact with an elastic pad on the front side of the computer board box, and by pressing of the button, the elastic pad in deformation is enabled to contact with a control switch of the computer board. The waterproof main control panel comprises the computer board which is hermetically arranged through the elastic waterproof pad, the button structure is redesigned according to the integral structure to improve hand feeling of the button, and accordingly user experience is improved, and the waterproof main controlpanel is suitable for popularization and utilization.

The invention discloses an electric screwdriver. The electric screwdriver comprises a hollow cylindrical outer shell (1), a motor (7), a gear output shaft (2) connected with the motor (7), a tail cover (3), a battery (4) and a negative electrode contact chip (15). The tail cover (3) is arranged at the end, far away from the gear output shaft (2), of the outer shell (1), and the maximum diameter of the outer shell (1) ranges from 24 millimeters to 35 millimeters. The electric screwdriver further comprises a special-shaped spring (8) and a battery ring (14), wherein the special-shaped spring (8) is connected with the battery (4) and is arranged inside the tail cover (3), one end of the battery ring (14) is connected with the special-shaped spring (8), and the other end of the battery ring (14) is connected with the negative electrode contact chip (15). The tail cover (3) is connected with the outer shell (1) in a clamping mode. The electric screwdriver is convenient to install and capable of working in narrow space, bad contact cannot be generated, and the service life of the electric screwdriver can be prolonged.

The invention relates to an electronic atomization device and an atomization assembly thereof. The atomization assembly comprises a support assembly, a heating track arranged outside the support assembly in a sleeving mode and a liquid suction piece arranged outside the heating track in a sleeving mode. A limiting rail groove used for containing the heating track is formed in the outer side of thesupport assembly. The heating track is wound in the limiting rail groove, limiting and fixing of the heating track can be enhanced, the heating track is not prone to deformation, poor contact betweenthe heating track and a liquid matrix adsorbed on the liquid suction piece due to warping caused by high temperature or other reasons is avoided, the heating track consistency is good, and the atomization effect is good.

The invention discloses an alternating-current sleeve structure. The alternating-current sleeve structure comprises a conductive tube, a conductive head which is in threaded connection with the head of the conductive tube, a cover plate, and an elastic plate and a pressing ring sequentially arranged above the cover plate; the conductive tube extends out of the cover plate; the pressing ring and the elastic plate are in a circular ring shape; an inner ring of the elastic plate is folded towards an outer ring to form a wave structure; the diameter of the inner ring of the elastic plate is consistent with the diameter of the conductive tube; the pressing ring is fixedly connected with the cover plate through a bolt and presses a plane between the outer ring of the elastic plate and the wave structure; symmetric open grooves are formed in the two sides of the conductive head; through holes penetrating through the wall thickness of the conductive head are formed in the side surfaces of theopen grooves; and nuts and screws are arranged on the through holes in a penetrating mode. According to the alternating-current sleeve structure, the conductive head and the conductive tube are lockedthrough the screws and the nuts; the influence of stress of a drainage bus and vibration of a main transformer on the tightness of threaded connection during operation can be eliminated; and poor contact between the conductive head and the conductive tube is avoided.

The invention provides a safety socket and a plug of the safety socket. A cylindrical jack is formed in a socket body. The open end of the cylindrical jack is axially provided with a convex sliding groove. The upper portion of the cylindrical jack is provided with an annular groove I which is communicated with the convex sliding groove and coaxial with the cylindrical jack. An annular groove II is formed in the middle of the cylindrical jack. A ground wire electrode is arranged at the bottom of the cylindrical jack. A live wire electrode is arranged in the annular groove II. A null wire electrode is arranged on the upper surface of the annular groove I. A spring is arranged at the bottom of the cylindrical jack. The ground wire electrode is fixed to the upper end of the spring. The plug is cylindrical. A handheld end is arranged at the top end of the plug. The bottom of the plug is provided with a ground wire head. An annular live wire head is arranged in the middle of the plug. A null wire head is arranged on the upper portion of the plug. The safety socket and the plug of the safety socket are safe to use and good in contact performance, and the plug can be prevented from disengaging.

The invention discloses an automatic adjusting and fixing device for a charging port of a new energy automobile. The automatic adjusting and fixing device includes a shell, and a rectangular groove isformed in the center of the interior of the shell. A fixing cylinder is arranged in the groove, a spiral ring is arranged in the fixing cylinder in a surrounding mode, a plurality of contact rods arearranged in the spiral ring in a surrounding mode, a fixing plate is arranged at one end of the fixing cylinder, a sliding groove is formed in the side wall of the fixing plate, and a ratchet wheel is arranged at the end, close to the fixing plate, of the spiral ring in a surrounding mode. When the spiral ring rotates, the spiral ring contracts towards the center of the interior; the contact rodis driven to extrude towards the center, the inserting rod of the charging head can be attached to the contact rod, electric power is transmitted to the surface of the contact rod through the inserting rod of the charging head and then transmitted to a cable at one end of the fixing plate through the contact rod, and the automatic adjusting and fixing device has the advantages of being capable ofautomatically fixing the charging plug and being suitable for charging heads of different diameters.

The invention provides a storage device for information processing, and relates to the technical field of storage devices. The storage device for information processing comprises a shell, wherein an outlet is formed in the top of the shell; an inserting opening is formed in the bottom of the outlet in the shell; a connecting base is rotationally connected to the bottom of the inserting opening; astorage area is fixedly installed at the bottom end of the connecting base; a locking device is fixedly connected to the bottom end of the storage area; and a covering device is fixedly connected to the right side of the connecting base. For the storage device for information processing, the inserting opening can only be popped up through the digital password, so that the safety of the storage device is improved and information leakage is avoided; and when the storage device is not used, the outlet can be shielded to avoid the dust entering the inserting opening so as to avoid the poor contactphenomenon of the inserting opening caused by dust falling, and the phenomenon that the inserting opening is separated from a USB interface due to collision of the shell is avoided due to the fact that the inserting opening is rotationally connected with the connecting base.

The invention relates to a continuous remote transmission floater type level gauge, which comprises a floater and a magnetic connector, the continuous remote transmission floater type level gauge is characterized in that: the level gauge further comprises an electrically conductive or magnetically inductive and electrically conductive guide rail, and at least one guide rail is covered by an insulating layer and wound with resistance wires; the magnetic connector comprises an insulating case and a magnetic shaft or a metal shaft arranged horizontally; for the magnetic floater type level gauge,the magnetic connector further comprises a magnetic steel; the magnetic shaft or the metal shaft moves up and down along the guide rail with the up-and-down movement of the floater under the action of magnetic force; and a corresponding liquid level value is obtained by measuring a resistance value in a conducting loop consisting of the guide rail, the magnetic shaft or the metal shaft so as to realize continuous remote transmission of liquid level data. The continuous remote transmission floater type level gauge can further comprise a fixed slide pulley, a balance weight, a connecting rope or a balancing magnetic connector brought by connection. The continuous remote transmission floater type level gauge has remarkable characteristics of simple structure and continuous remotely transmitted signal.