9results about How to "Reduce footprint" patented technology

A combined switch with a large current protection function comprises at least two-pole frame type switches and at least one-pole fuses, and the at least two-pole frame type switches and the at least one-pole fuses are combined into a whole to be installed in a direct-current power system to control on-off of the direct-current power system. According to the combined switch, the frame-type switch and the fuse are combined into a whole, the size of the whole occupied space of the switch is reduced, the application range of the switch is expanded, meanwhile, the use amount of connecting copper bars between the frame-type switch and the fuse is reduced, the product cost is saved, fusing indication of the fuse can be integrated to a secondary terminal of the frame-type switch, and the service life of the switch is prolonged. The wiring is convenient, and the wiring difficulty is reduced; on the other hand, the frame-type switch and the fuse are combined into a whole, the current protection matching degree is improved, large electric quantity overload protection of the direct-current power system is achieved, additional model selection and construction are not needed, the fuse can be disassembled, assembled and maintained from the front face, and the maintenance difficulty is reduced.

The utility model relates to the technical field of charging piles, in particular to a power distribution assembly for a direct-current charging pile, which comprises a bracket main body, a conversion module in the direct-current charging pile and a direct-current high-voltage contactor, each group of direct-current high-voltage contactors consists of a first contactor connected to the positive pole output end of the conversion module and a second contactor connected to the negative pole output end, and the first contactor and the second contactor are arranged on the first mounting surface of the bracket main body and are correspondingly connected in series to form an annular loop; the annular loop is provided with a plurality of direct-current outlet copper bars, each direct-current outlet copper bar is provided with a first end connected with the annular loop and a second end extending to the second installation face of the support body, and the second end of each direct-current outlet copper bar forms a copper bar wiring area used for wiring of the charging terminal on the second installation face. According to the utility model, the space in the thickness direction of the cabinet is fully utilized, so that the power distribution assembly can realize more compact layout in a limited size.

The utility model discloses a kind of rotating devices, belong to X-ray automatic detection equipment technical field, specifically related to a kind of high-precision X-ray source intelligent rotating device, comprising: driving motor, installation bottom plate, hollow rotating platform and X-ray source assembly;The driving motor is installed in the rear side of the installation bottom plate, the hollow rotating platform is installed in the front side of the installation bottom plate, and the X-ray source assembly is installed on the hollow rotating platform;Arranged on the installation bottom plate is in-place inductor and limit block;The X-ray source assembly is provided with the inductive sheet matched with the in-place inductor;The utility model uses hollow rotating platform as core rotating element, and is directly driven by motor, and this design reduces the generation of cumulative error from the root, ensures the high-precision rotating performance;And simplify overall structure, under the premise of guaranteeing function, reduce volume, weight and cost, show significant technical advantage.

This application discloses a filter and power device, belonging to the field of power electronics technology. The filter includes: a terminal block with a first groove on one side and a second and third groove connected to each other on the side opposite to the first groove; a first magnetic ring placed in the first groove; a second magnetic ring placed in the second groove; and a filter assembly, at least partially placed in the third groove, with the filter assembly located between the first and second magnetic rings. Thus, this application achieves a high degree of integration of the first magnetic ring, the second magnetic ring, and the filter assembly through the terminal block, simplifying the filter structure, reducing the space occupied by the filter, making the filter layout more compact, and the arrangement between the various structures more reasonable. It fully utilizes the internal space of the terminal block, achieving a tight connection between the various structures within a limited space, effectively reducing the overall size of the filter and the overall volume occupied by the filter.

The utility model relates to the technical field of rehabilitation apparatus, and disclose a kind of storable medical rehabilitation device, including first support frame, the side fixed connection of first support frame has first folding board, the side of first folding board is equipped with recycling groove, the inside sliding connection of recycling groove has second folding board, the side fixed connection of second folding board has second support frame, first support frame and second support frame bottom are all installed with support leg, the top fixed connection of first folding board has two square blocks, the top of square block is equipped with special-shaped through groove, the inside sliding connection of special-shaped through groove has cylindrical rod.This storable medical rehabilitation device can realize the quick folding function of walking aid in the medical rehabilitation device, thereby facilitating storage and reducing the occupied space volume. Such improvement not only improves the portability of the device, but also greatly enhances its practicability in different environments.

The embodiment of the present disclosure relates to the field of semiconductor, and provides a semiconductor structure and a manufacturing method thereof, the semiconductor structure comprising: a substrate; a first oxide semiconductor layer perpendicular to a surface of the substrate, comprising a first channel region and first source-drain doped regions located on opposite sides of the first channel region along an extension direction of the first oxide semiconductor layer; first gates located on at least opposite sides of the first oxide semiconductor layer along any direction parallel to the surface of the substrate, the first gates located on opposite sides of the first oxide semiconductor layer being gate regions, and the first gates further comprising a connecting region connecting the gate regions; and first source-drain electrodes comprising first source electrodes and first drain electrodes located on opposite sides of the first oxide semiconductor layer, the first source-drain electrodes being in contact with the first source-drain doped regions; wherein the first oxide semiconductor layer, the first gates and the first source-drain electrodes constitute a first transistor. At least the performance of the semiconductor structure can be improved while reducing the size of the semiconductor structure.

The invention provides a miniaturized environment-friendly gas ring main unit which comprises a closed box body based on dry air insulation, the closed box body is provided with an emergency interface, and the internal space of the closed box body is divided into a closed gas box, a mechanism chamber, a cable chamber, a pressure relief chamber, a mounting compartment and an instrument chamber according to functions and purposes; wherein a three-fracture combined switch is designed in the closed gas tank, and a sprocket transmission structure is adopted between the three-fracture combined switch and the PT operating mechanism and the emergency power supply operating mechanism of the mechanism chamber, so that the miniaturization design requirement is met. The PT unit is integrated with the incoming and outgoing line unit, the instrument chamber is integrated with the automatic terminal DTU, and a cabinet does not need to be arranged independently. By reasonably distributing the positions of the functional rooms, the occupied space of the ring main unit is reduced, an original old high-voltage cable branch box is replaced, or a state grid standardized ring main unit is replaced in a narrow site, the power supply reliability is improved, and the power failure range of an abnormal accident is minimized.

The invention discloses a gas-fired boiler low-nitrogen burner convenient to adjust gas inflow, and relates to the technical field of boilers, the gas-fired boiler low-nitrogen burner convenient to adjust gas inflow comprises a motor, a gas inlet pipe and a driving mechanism, a first adjusting mechanism is arranged in the gas inlet pipe, and the driving mechanism comprises a fixing disc coaxially fixed to an output shaft of the motor; the outer edge of the side wall of the fixed disc is provided with a plurality of fixed frames which are distributed along the circumferential direction of the fixed disc in an array manner; according to the device, motor rotating speed regulation and control and air door opening and closing regulation and control are combined, when the rotating speed of the motor is increased, centrifugal force drives a balancing weight to move outwards, a first telescopic rod, a fixing pipe and a second telescopic rod push a spiral rod to move axially, the spiral rod is matched with a limiting column, and linear motion is converted into rotation of a first annular fluted disc; therefore, all the blades are driven to integrally and synchronously change the deflection angles of the blades, a sensor and a complex circuit are omitted, the occupied area and the manufacturing cost of the system are reduced, the air inlet amount can be adjusted in a stepless mode in real time according to the air inlet requirement, and different air inlet requirements are met.

The utility model provides a kind of catheter assembly and medical equipment.Catheter assembly includes first tube body and shock wave generation component.First tube body is formed with first accommodating cavity.Shock wave generation component includes at least two discharge parts, at least two discharge parts are spaced apart and set to the distal end in first accommodating cavity along the length direction of first tube body, at least two adjacent discharge parts form discharge region, to produce shock wave in liquid medium in first accommodating cavity.Wherein, discharge region is parallel to the central axis of first tube body, and at least part discharge region and the central axis of first tube body are overlapped.Such ensure that catheter assembly can have smaller size in radial direction, effectively improve the practicability of catheter assembly.In the treatment of blood vessel calcification lesion using catheter assembly, catheter assembly can directly pass through relatively narrow lesion site, effectively simplify the treatment step, reduce the cost required for treatment, and improve the experience of patient use.