7results about How to "Reliable electrical contact" patented technology

The invention discloses a withstand voltage insulation test device for a high-frequency high-speed microwave copper-clad plate, and relates to the technical field of copper-clad plate test.The withstand voltage insulation test device comprises an operation plate and further comprises a fixing device, a placement frame is fixedly installed on the surface of the operation plate, and a withstand voltage insulation detection device is arranged at the bottom of the inner wall of the placement frame; a placing plate is fixedly mounted at the top of the operation plate, an electric push rod is fixedly mounted at the top of the operation plate, a clamping frame is fixedly mounted at the output end of the electric push rod, and an elastic telescopic block moves downwards so that the free end of the elastic telescopic block can make contact with a limiting groove and limit a sliding frame and the clamping frame; the clamping frame is limited by the elastic telescopic block and cannot continuously extrude the copper-clad plate to prevent the copper-clad plate from being deformed due to excessive extrusion, the copper-clad plate is slightly moved or deformed due to excessive clamping to influence the reliability of a test result, the copper-clad plate is prevented from being deformed in a proper fixing mode, and the accuracy of the test result can be further ensured.

The utility model discloses a middle connecting structure of an LED lamp strip, which comprises the LED lamp strip, a connecting piece and a fastening sleeve, the connecting piece comprises a bottom plate, a conductive strip and a pressing strip, a clamping groove is further arranged on the connecting piece, a clamping strip matched with the clamping groove is arranged in an inner cavity of the fastening sleeve, the LED lamp strip is embedded between the bottom plate of the connecting head and the conductive strip, and the pressing strip is arranged on the bottom plate of the connecting head. The fastening sleeve is connected to the connector in a sleeved mode, the clamping strip of the fastening sleeve is clamped into the clamping groove of the connecting piece to fix the fastening sleeve and the connecting piece, the fastening sleeve presses the pressing strip, the pressing strip fixes the LED lamp strip, and the conductive strip makes electric contact with the wiring terminal of the LED lamp strip. According to the utility model, the fixation of the circuit board and the electric contact of the conductive strip and the wiring terminal of the circuit board are realized through the pressure generated by the interference fit of the fastening sleeve and the connecting piece, and the fixation of the fastening sleeve and the connecting piece is realized through the clamping connection of the clamping strip of the fastening sleeve and the clamping groove of the connecting piece; the LED lamp strip has the advantages of being high in tensile capacity and reliable in electric connection.

The invention provides an electrical parameter measuring device and method for a rock and soil sample. The device comprises a device base, a horizontal holder assembly, a pressure assembly, an AB power supply electrode assembly, a top end M and N spring electrode assembly, a lateral MN probe electrode assembly and an electrical parameter measuring module. Two horizontal clamp assemblies are symmetrically arranged on the left side and the right side of the device base, pressure assemblies are installed on the horizontal clamp assemblies and abut against the AB power supply electrode set, the top end M and N spring electrode assemblies are installed at the two ends of the middle of the device base and stretch across the device base, and the lateral MN probe electrode assembly is installed on the rear side of the device base. And the electrical parameter measuring module is connected with an electrode column on the device base. The technical problems that in a traditional method, clamping force is difficult to control, contact is poor, current distribution is uneven, the process is opaque, data cannot be post-processed and the like are solved, and universalization, high precision and repeatable measurement of rock and soil samples are achieved.

The utility model discloses a terminal and connector. The terminal comprises: a terminal body, comprising a matching part in the shape of a dovetail clamp, used for clamping a matching terminal inserted; and an elastic clamp, assembled to the matching part, used for increasing the clamping force of the matching part clamping the matching terminal, the terminal body is a copper piece or a copper alloy piece for conducting current, and the elastic clamp is a steel piece. In the utility model, the terminal has simple structure and low cost. In addition, in the utility model, the elastic clamp made of steel can increase the clamping force of the matching part of the terminal body clamping the matching terminal, so that the matching part of the terminal body and the matching terminal can be reliably and stably electrically contacted.

The utility model relates to the technical field of electric connection, in particular to a wire end connector, which comprises an insulating seat body, a power connection assembly, a locking assembly and a wiring assembly, a fixed cavity and a wiring cavity are arranged in the insulating seat body, are respectively arranged at two ends of the insulating seat body and are communicated with each other, and the locking assembly is arranged in the fixed cavity. One end of the power connection assembly is arranged in the fixed cavity, and the other end of the power connection assembly extends to the outside of the insulating seat body to form a connecting plug; the wiring assembly is arranged in the wiring cavity and is electrically connected with the power connection assembly; the locking assembly comprises a locking plug-in cavity, a locking supporting table, a locking pressing plate and a locking buckling plate. The locking plug-in cavity is formed in the insulating base and located on one side of the fixing cavity. According to the utility model, the locking object is reliably locked, so that accidental pulling-out caused by shaking and the like in the vehicle-mounted use process is prevented, a stable guarantee is provided for connection between vehicle-mounted equipment, and the reliability and the safety of the whole system are improved.

The present disclosure relates to a layer system (1) for an electrolyser (100) and a corresponding electrolyser (100). The layer system (1) comprises a substrate layer stack (10) having the following layers in a given order: a first perforated layer (20) having a plurality of perforations (21a, 21b, 21c), a first bipolar layer (30), and a second perforated layer (40) having a plurality of perforations. The first bipolar layer (30) comprises first spacing means (32a, 32b, 32c) on the first surface (31) to space the first perforated layer (20) and the first bipolar layer (30) apart. Furthermore, the first bipolar layer (30) comprises second spacing means (34a, 34b, 34c) on a second surface (33) opposite the first surface (31) to space the second perforated layer (40) and the first bipolar layer (30).

The present invention provides a highly stable automatic wire threading detection mechanism, comprising a body component and a detection component, wherein the body component comprises a support plate, a connecting plate, a storage slot, a wire threader and a fixed plate; the detection component comprises a metal wheel, a cylinder, a storage plate, a contact carbon brush, a ceramic wheel, a wire outlet hole and a guide plate; a fixed plate is fixedly connected to the middle of the front surface of the support plate, and a wire threader is installed on one side of the fixed plate; the present invention guides and pulls the electrode wire through the rotating metal wheel and the ceramic wheel, and then achieves reliable electrical contact through the squeezing effect of the metal wheel and the ceramic wheel on the electrode wire, thereby reducing the influence of the water film on the electrode wire during traditional pressure-free contact detection on the reliability of the detection signal, and then the piston rod of the metal wheel drives the guide plate to move, and the moving guide plate drives the contact carbon brush to fit with the metal wheel, thereby performing electrical signal detection, thereby avoiding the occurrence of detection failure and improving the detection stability of the automatic wire threading detection mechanism.