8results about How to "Reduce alignment accuracy requirements" patented technology

The application relates to a light-emitting diode test circuit, a driving chip, a display module and a display panel. The light-emitting diode test circuit comprises: a plurality of first conductive elements, each first conductive element being used for corresponding connection with an anode of each light-emitting diode on a display module to be tested; a plurality of second conductive elements, each second conductive element being used for corresponding connection with a cathode of each light-emitting diode on the display module to be tested; a first conductive test element, which is connected with each first conductive element and is used for receiving a first driving voltage provided by an external test device; and a second conductive test element, which is connected with each second conductive element and is used for receiving a second driving voltage provided by the external test device, wherein the first driving voltage is greater than the second driving voltage. By using the above light-emitting diode test circuit, the number of top pins of a detection device can be reduced, and thus the detection cost is reduced.

The method comprises the following steps: providing a substrate; forming a plurality of first electrode structures and a plurality of bit lines in the substrate; wherein the plurality of bit lines extend along a first direction, the first electrode structures and the bit lines are arranged at intervals along a second direction, and the plurality of first electrode structures are arranged in an array; forming an MTJ structure above the first electrode structures; forming an insulating layer above the substrate, wherein the insulating layer covers the substrate and the MTJ structure; forming a plurality of electrode trenches in the insulating layer, wherein the electrode trenches expose the top surface of the MTJ structure and the top surface of the bit lines; and forming a plurality of second electrode structures in the plurality of electrode trenches. The method can reduce the alignment accuracy requirement when preparing the electrode, reduce the process difficulty, and improve the bit line density.

A joint structure for the main structure and the roof of the connecting corridor includes a joint insulation layer and symmetrically arranged upper and lower sealing structures. The sealing structures, from the inside out, consist of an arc-shaped plate, an elastic joint connecting plate, an installation plate, and an outer decorative panel. The arc-shaped groove design of the arc-shaped plate can absorb multi-dimensional displacement. The elastic joint connecting plate is slidably connected to the expansion joint guard via a retaining strip, achieving dynamic deformation adaptation. The joint insulation layer fills the joint gaps, forming multiple waterproof barriers in conjunction with sealing rods, sealant, and a double-layer waterproof structure. The installation plate and the outer decorative panel are connected by bolts and fasteners, enabling modular, rapid installation and easy disassembly and maintenance. This invention, through a flexible deformation mechanism and integrated waterproof design, significantly improves the durability, construction efficiency, and maintenance convenience of the joint, making it suitable for complex conditions involving large-span connecting corridors and main structures.

The application provides a rotor blade assembling device and a rotor assembly, which comprises a base and a blade clamp fixedly connected to the side of the base, a positioning block is arranged above the base, a first slot structure is arranged on the lower surface of the positioning block, and a positioning notch is formed at the position of the first slot structure when the positioning block is fixed to the base; a limiting piece is extended from the assembling surface of the blade clamp opposite to the base, the limiting piece and the positioning notch are complementarily matched when the blade clamp is fixed to the base, the blade clamp can be fixed to a target posture through the positioning notch and the limiting piece, and then the blade fixed to the blade clamp can be fixed to a target blade angle. The rotor blade assembling device and the rotor assembly can effectively guarantee the posture stability of the blade fixed at the target blade angle, can quickly adjust the blade angle by replacing the positioning block, are convenient to use, and can guide the adjustment of the assembling posture of the blade clamp pre-fixed to the base during the installation and fixation of the positioning block, thereby reducing the assembling precision requirement and improving the assembling efficiency.

This utility model discloses an optical joystick device, belonging to the field of game input devices, including a joystick mechanism, an image acquisition module, and a PCB board. The bottom of the joystick mechanism is connected to a reflective surface with micron-level texture. The image acquisition module is located directly below the reflective surface and includes a light source, a lens module, and an image sensor. During operation, light shines through the lens onto the reflective surface, and the reflected light is received and analyzed by the image sensor to achieve precise positioning of the joystick operation. This device replaces the traditional multiple sets of optical components with a single image acquisition module, featuring simple structure, low cost, high assembly efficiency, and high reliability. It provides various joystick mechanism structures and can directly replace the joystick devices of existing game controllers, making it suitable for various game devices.

The utility model belongs to charging equipment technical field, concretely relates to a charging device for logistics robot, including charger main part and electric control telescopic link, one end of electric control telescopic link is fixedly connected with adaptive elastic support, and the adaptive elastic support is fixedly connected with mounting panel on, and the mounting panel is fixedly connected with annular locating ring and plug on, and the charger main part is fixedly connected with and locating block and socket on, and the socket and charger main part electric connection, the inside of locating block is provided with annular locating groove, and the side of locating block is provided with the annular flared slot that is linked with annular locating groove, and the size of annular flared slot gradually increases from the one end close to locating block to the one end away from locating block, and the adaptive elastic support includes the rectangular frame of installation in electric control telescopic link one end. The utility model can promote the alignment deviation allowable range of plug and socket, reduce the alignment accuracy demand of plug, reduce the difficulty of alignment positioning when charging of logistics robot.

The utility model provides a connecting and locking device for a modular robot, which relates to the technical field of robots and comprises a locking connecting shaft and a locking connecting block. The adjacent module robots are connected in a matched mode through the locking connecting shafts and the locking connecting blocks. The locking connecting shaft comprises a connecting plate, a stepped shaft and a connecting disc, one side of the connecting plate is fixedly connected with the first end of the stepped shaft, the second end of the stepped shaft is fixedly connected with one side of the connecting disc, and the diameter of the connecting disc is larger than that of the smallest step on the stepped shaft; the locking connecting block comprises a connecting hole plate, a buckle, a first gear, a second gear, a limiting switch and a driving motor. According to the locking connection device, the locking connection shafts and the locking connection blocks are used in cooperation, so that locking connection between the module robots is achieved, and the locking connection device is simple in structure and convenient to operate.

The application discloses a kind of all-fiber current sensor and detection method, belong to optical fiber sensing technical field, sensor includes: light source, first coupler, polarizer, second coupler, phase modulator, first circulator, third coupler, second circulator, fourth coupler, delay ring, λ / 4 wave plate, sensing optical fiber, current-carrying conductor, reflector, third circulator, fifth coupler, nanometer high-speed first optical switch, photodetector, A / D converter, FPGA, D / A converter and first programmable logic controller PLC.The application can realize accurate measurement of weak signal under strong interference, with high sensitivity, good linearity, strong stability and other advantages.Enhances the long-term stability and environmental adaptability of system;Intelligent control and self-adaptive interruption to optical path cycle number are realized, measurement can be automatically completed under the premise of guaranteeing optimal signal-to-noise ratio, with automation and reliability.