16results about How to "Avoid bad contact" patented technology

The utility model discloses an overload protection circuit breaking device of a light storage centrifugal machine, and relates to the technical field of overload protection circuit breaking. The circuit breaker comprises a circuit breaker body, and two ends of the circuit breaker body are provided with a plurality of wiring grooves. According to the utility model, the two rotation driving mechanisms approach to the two ends of the wire harness at the same time, then the two moving mechanisms drive the corresponding limiting mechanisms to move, and as the two limiting mechanisms and the moving mechanisms are installed in a sliding manner, the moving mechanisms play a role in guiding the sliding of the limiting mechanisms, and when the two rotation driving mechanisms rotate, the two rotation driving mechanisms are driven by the moving mechanisms to move. The two limiting mechanisms can get close to each other in the direction of the wire harness along the moving mechanism, and after the two limiting mechanisms move to the two ends of the outer wall of the wire harness, the outer walls of the two ends of the wire harness are limited and fixed, so that the situation that the wire harness is pulled by external force during follow-up equipment maintenance operation is prevented; and poor contact between the circuit of the optical storage centrifugal machine and the circuit breaker is caused.

The application relates to the technical field of electrode clamping of an electric spark machine, in particular to an electrode clamping device and method of an electric spark machine. The electrode clamping device of the electric spark machine comprises a chuck and a conductive seat which are fixedly connected through a fixing base and coaxially arranged in an upper and lower position. The inside of the fixing base is provided with a scraping plate which can horizontally move laterally at the bottom of the conductive seat and a driving plate which can vertically ascend and descend at the side of the conductive seat. The plate surface of the driving plate is parallel to the lateral moving direction of the scraping plate. When an electrode rod is inserted from the bottom of the chuck and gradually approaches the conductive seat, the driving plate converts the ascending movement of the electrode rod into the horizontal lateral movement of the scraping plate to scrape the bottom end surface of the conductive seat. The scraping plate scrapes the bottom end surface of the conductive seat once every time the electrode rod is installed, so that the electrode rod can be stably electrically connected with the conductive seat every time.

The utility model discloses an air inlet adjusting mechanism installed on a motorcycle motor, which relates to the field of motorcycle parts, and comprises a motor main body, an inner sleeve column and an adjusting cap, the inner sleeve column adopts a cylindrical structure and is detachably assembled at the front end of the motor main body, the adjusting cap is movably sleeved on the inner sleeve column, and the inner sleeve column is detachably assembled at the front end of the motor main body. A threaded adjusting rod is rotatably installed in the center of the interior of the inner sleeve column, the tail end of the threaded adjusting rod is in transmission connection with an output shaft of the motor body, an inner limiting sleeve column is installed in the center of the interior of the adjusting cap in the axial direction, a threaded hole is formed in the center of the inner limiting sleeve column in the axial direction, and the front end of the threaded adjusting rod is inserted into the threaded hole in a screwed mode. The adjusting cap is controlled by the motor to move, the gap between the adjusting cap and the throttle valve seat is changed, the air inflow of the throttle valve channel of the motorcycle is controlled, the whole control is simple, and the air inflow control response speed is high, and the efficiency is high.

There is provided a semiconductor device including: a substrate having an active region formed thereon; a gate stack on the active region; a circuit wiring disposed over the gate stack; and a contact via structure on a side surface of the gate stack and between the active region and the circuit wiring, in which the contact via structure includes: a gate contact via extending between the circuit wiring and the active region; a first contact insulating film covering a portion of a side surface of the gate contact via and exposing a remaining portion of the side surface; and a second contact insulating film covering a portion of a side surface of the first contact insulating film, exposing a remaining portion of the side surface, and exposing a remaining portion of a side surface of the gate contact via.

The utility model relates to the technical field of earphones, in particular to a device for preventing a plug wire from loosening and a headphone thereof, the device comprises a plug wire, a locking sleeve and a nut, one end of the plug wire is provided with a data plug, the data plug is inserted into the locking sleeve, the locking sleeve comprises a conical sleeve and an external thread sleeve, and the surface of the external thread sleeve is provided with external threads. A contraction port of the conical sleeve is connected with the inlet end of the external thread sleeve, the thread depth of the external thread is gradually shallower from the inlet end to the tail end, the external thread sleeve is provided with at least two connecting notches, the connecting notches are evenly distributed on the external thread in the circumferential direction, and the nut is arranged at the inlet end of the external thread in a sleeving mode. The external thread sleeve is contracted, so that the position of the tail end of the data plug is limited, the data plug cannot be pulled out of the locking sleeve, the situation that a plug-pull line loosens and falls off from the headset due to external force when a user uses the headset, and poor contact is caused can be avoided, and the use experience of the user is guaranteed.

This utility model provides a mine-use explosion-proof and intrinsically safe low-voltage contactless switch circuit, including: a main circuit, a control circuit, a transformer TC, and a comprehensive controller JZK1; the main circuit includes a reversing switch QS, one side of which is used to connect to the incoming three-phase live wires X1, X2, and X3, and the other side is connected to the power supply three-phase live wires XA, XB, and XC respectively through fuses KR1, KR2, and KR3; the first terminals of bidirectional thyristors MTC1, MTC2, and MTC3 are respectively connected to the power supply three-phase live wires XA, XB, and XC. The second terminals of the bidirectional thyristors MTC1, MTC2, and MTC3 are connected to the three-phase power terminals of the three-phase motor M1 via three-phase lines; the first and second terminals of the bidirectional thyristors MTC1, MTC2, and MTC3 are connected to the corresponding voltage detection terminals of the integrated controller JZK1; and the gate terminals of the bidirectional thyristors MTC1, MTC2, and MTC3 are connected to the corresponding gate control terminals of the integrated controller JZK1. This circuit is safer and more reliable for long-term use, and also realizes the soft-start function of the motor.

The utility model relates to the field of electrical elements, and particularly discloses a wiring structure and a switch. The wiring structure and the switch comprise a base, a circuit board installed in the base, a conducting strip installed on the circuit board and a wiring terminal connected with the conducting strip, the conducting strip comprises a plug-in end and a connecting part, the plug-in end is fixedly connected with the lower end of the connecting part, and one end, away from the plug-in end, of the connecting part is fixedly connected with two pins. The circuit board is provided with positioning holes for insertion of the pins. The wiring terminal comprises a wiring cylinder and a fastener, the inner wall of the wiring cylinder is connected with the outer wall of the plugging end, the fastener is in threaded connection with the inner wall of one side of the wiring cylinder, and the fastener is used for fixing an electric wire. Precise connection between the conducting strip and the circuit board can be achieved, the structure installation efficiency is improved, the insertion depth and the contact area of the wire can be increased through the connecting cylinder and the insertion end, and the situations of loosening and poor electrical contact can be effectively prevented.

The utility model discloses a kind of flexible circuit board and LED lamp strip, including by upper to lower sequentially arranged upper insulating layer, circuit layer, power supply layer and lower insulating layer;Power supply layer is provided with first conductive strip and second conductive strip mutually parallel along the length direction of lower insulating layer;First conductive block between first conductive strip and second conductive strip is equipped on circuit layer, second conductive block for connecting power supply layer;Upper insulating layer includes several first and last connected subunits, first window adapted with first conductive block and second window adapted with second conductive block are equipped on subunit.Upper insulating layer, circuit layer and power supply layer are set, first conductive block, second conductive block and power supply layer can be sequentially connected by first window and second window, both ensure circuit stability, also ensure the connection stability between upper insulating layer, circuit layer, power supply layer, avoid gap between upper insulating layer and power supply layer, improve the structural integrity and service life of flexible circuit board.

The application discloses a kind of relays, it is related to relay technical field, including shell, contact mechanism and electromagnet, the contact mechanism includes movable contact and static contact, further include: executive component, it includes multiple with corresponding the static contact connection first connecting sheet, for driving the opening and closing of static contact and movable contact, protection component, it includes the fixed connection of first connecting sheet with positioning cylinder, the positioning cylinder is slidably connected with the fixed connection of static contact with positioning rod, when static contact and movable contact are closed and temperature is in temperature threshold range, static contact moves to the direction of movable contact, when temperature exceeds temperature threshold, static contact moves to the direction of away from movable contact and carries out short-circuit protection, limiting component, it is arranged between the shell and positioning rod, for control the one-way sliding of positioning rod;The application is disconnected automatically when short-circuit, and improve the stability of contact contact.

The utility model provides a jack inner core, a jack terminal and a charging socket, and belongs to the field of connecting devices. The jack inner core comprises a cylindrical body, elastic cantilevers are arranged at the rear end of the cylindrical body at intervals in the circumferential direction, each elastic cantilever is of a circumferentially-bent segment-shaped structure, the elastic cantilevers are formed by being separated from the cylindrical body, and separation holes are formed after the cylindrical body is separated from the elastic cantilevers. A gap between the side wall face of the separation hole and the side wall face of the elastic cantilever is a separation machining gap. The jack terminal comprises the jack inner core. The charging socket comprises the above jack terminal. According to the utility model, the reinforcing bulge is additionally arranged at the connection position of the elastic cantilever and the cylindrical body, so that the deformation resistance of the elastic cantilever in the radial direction is improved, the hole terminal and the connection hole are matched more tightly, and the situation that the jack terminal and the side wall of the connection hole of the circuit board are in poor contact is prevented.

The invention discloses an engine performance test bench tail gas treatment wire harness, and relates to the field of engine performance testing, the engine performance test bench tail gas treatment wire harness comprises a plurality of data transmission lines, a plug and a socket, and the front end of each data transmission line is provided with a plugging part; the plug is arranged at the front end of the plugging part, a plurality of jacks are formed in the plug, and the plugging parts are plugged in the jacks in a one-to-one correspondence manner; the socket is installed on the tail gas detection terminal and matched with the plug, the plug is inserted into the front end of the socket, a buckling assembly is installed above the plug, the buckling assembly can lock the plug in the socket, an unlocking assembly is installed at the position, located at the buckling assembly, above the socket, and the unlocking assembly can control the buckling assembly to unlock the plug. Through the structural design of the plug at the front end of the wire harness and the matched socket, all data transmission lines do not need to be pulled to a terminal position for one-to-one connection during installation, so that the operation is convenient, and the influence of the external environment is not easily caused.

The application discloses a conductive ring in the technical field of petroleum equipment electronic components and a manufacturing method thereof, and aims to solve the problem that the conductive ring in the prior art is prone to causing poor contact due to the gap in the radial direction after long-term use and abrasion. The conductive ring comprises a ring-shaped skeleton assembly, the skeleton assembly comprises a metal skeleton and a plastic skeleton arranged on the top of the metal skeleton, a wire is connected to the top of the metal skeleton, a receiving gap is formed on the inner side wall of a local skeleton of the plastic skeleton, so that the local skeleton forms a thin wall part, and vulcanized rubber layers are arranged on the two side walls of the skeleton assembly. The application is suitable for the manufacture of the conductive ring, can achieve the effect of keeping close contact all the time, realizes reliable contact, guarantees the stability of signal transmission, has reasonable overall layout, compact structure, and makes the outer side of the conductive ring annular, so that the conductive ring is convenient to install on petroleum equipment.

The utility model provides a kind of contact support assembly of alternating current contactor, comprising: support body, moving core shield, moving contact and elastic piece, the support body is equipped with mounting portion, the mounting portion is equipped with mounting groove, the moving core shield is buckled together with support body, the bottom of the mounting groove is equipped with fixing piece, the moving contact is installed on fixing piece, the elastic piece is detachably connected between the top of mounting groove and moving contact;Moving contact is not easy to loosen when being corresponding action in the closed or open circuit state of contactor, can prevent the occurrence of poor contact.

This invention belongs to the field of communication wiring harness technology, and specifically to a novel high-strength communication wiring harness for automobiles. A rubber ring is slidably connected to the inner wall of the terminal head, and a protective component is fixedly connected to the surface of the rubber ring. The internal wiring of the terminal head is connected to a wiring harness assembly, which includes a spring wire. The protective component includes a connecting block. This invention utilizes silicone filling in the inner layer of the rubber ring to absorb vibration energy, reducing fatigue damage to the wiring harness caused by vibration. A braided mesh is used in the middle layer of the rubber ring to enhance the shielding effect against high-frequency electromagnetic fields. An outermost layer of metallized fabric further enhances the overall shielding performance. The rubber ring slides along the inner wall of the terminal head to transmit external impact forces. The connecting block compresses the connecting spring, and the spring's rebound is buffered by the friction between the rubber ring and the inner wall of the terminal head, ensuring the stability of the connection between the cable and the internal wiring of the terminal head.

This utility model discloses a stable TYPE-C connector. The mounting base has an internal groove that communicates with the inner cavity of the mounting base. A spring is fixedly connected to the inner wall of the groove, and a pressure plate is fixedly connected to one end of the spring. A housing is inserted into the center of the mounting base, with its side surface fitting against the inner wall of the mounting base. The housing penetrates the mounting base and has a through groove that communicates with the groove. The side of the pressure plate away from the spring extends into the interior of the housing through the through groove, and its side surface slides against the inner wall of the through groove. This utility model ensures that after the plug is inserted into the connector, the spring constantly pushes the pressure plate, causing the plane of the pressure plate to fit tightly against the side surface of the plug. This increases the friction on the plug and improves the stability of the connection between the plug and the connector.

This application relates to an endotracheal intubation assembly with a stimulation stent and its method of use. The spherical mesh structure of the stimulation stent, with the elastic support of the elastic tube, drives the stimulation electrode to be uniformly and stably attached to the tracheal wall, effectively avoiding poor contact of the stimulation electrode caused by changes in patient position or slight movement of the endotracheal tube. The entire device integrates the stimulation stent, stimulation electrode, catheter, and endotracheal tube into a single integrated design through an extension tube, eliminating the need for a separate stimulation device after endotracheal tube insertion. This significantly simplifies the clinical procedure, reduces the risk of mucosal damage and infection caused by additional tube placement, and ensures reliable contact between the stimulation electrode and the tracheal wall as the stimulation stent is stably deployed, guaranteeing continuous and stable transmission and action of the electrical stimulation signal, and significantly improving the accuracy and consistency of phrenic nerve stimulation.