32results about How to "Reduce assembly volume" patented technology

The present invention provides a self-draining oil buoyancy regulating device for underwater robots, wherein the accumulator, lower hatch cover, hatch trunk, upper hatch cover and bladder are fixedly connected in sequence; the water-proof connector is fixed on the upper hatch cover; the depth-pressure sensor is settled on the lower hatch cover to check the underwater pressure; the upper valve block, hydraulic-operated check valve and lower valve block are connected though piping in sequence; the lower valve block is fixed on the lower hatch cover; the pump outlet pressure sensor and the accumulator pressure sensor are settled on the lower valve block; the directional valve and the upper valve block are connected through piping; the hydraulic pump motor assembly and the relief valve are both connected with the lower valve block through piping; the depth-pressure sensor, pump outlet pressure sensor and accumulator pressure sensor are all connected with the control panel; the control panel is connected with the external power supply and the host computer respectively by the water-proof connector; The present invention adopts a whole hydraulic plan which performs active oil drain and passive oil return; the design of overlay valve blocks has advantages of compact structure, reliable and energy-saving.

A gear motor having a safety mechanism includes a motor body, a speed reduction mechanism, a transmission mechanism, and a touch switch. The speed reduction mechanism includes a worm and a worm wheel drivingly engaged with the worm. The transmission mechanism includes a base fixed to the speed reduction mechanism, a lead screw rod pivotally connected to the base and rotatably driven by the worm wheel, and a nut threadedly connected to the lead screw rod. The touch switch is electrically connected to the motor body and provided aside the lead screw rod, thereby stopping the motor body when the nut contacts the touch switch. Thus, the gear motor not only controls the operation of the driven mechanism, but also allows various driven mechanisms to be mounted thereon. The assembled volume of the gear motor and the driven mechanism is reduced.

Some embodiments of the present disclosure provide the design and manufacture of an ultra-small chip assembly. The ultra-small chip assembly comprises a die, a plate-like back electrode disposed on the back-side of the die, and one or more plate-like positive electrodes disposed on the front-side of the die. The ultra-small chip assembly is configured such that one end of the plate-like back electrode extends beyond a first side of the die, and each of the one or more plate-like positive electrodes includes an end which extends beyond a second side of the die. By attaching both the plate-like back electrode and the plate-like positive electrodes on the surfaces of the die, and directly using the exposed ends of the plate-like electrodes as the lead-out electrodes for the chip assembly, the electrical connections outside of the die only occupy a very small volume.

A convenient disassembly and assembly structure for a furniture drawer comprises a side plate and a connecting piece. The side plate is a sheet metal part, and a clamping part is arranged at the front end of the side plate; and a clamping matching part is arranged on the connecting piece, and the connecting piece is detachably clamped on the clamping part through the clamping matching part. Through the improvement of the structure, the side plate is made of the sheet metal part, so that the overall assembly size of the drawer is reduced, the internal storage space of the drawer is increased, meanwhile, the clamping part is arranged at the front end of the side plate, the connecting piece is provided with the clamping matching part, and the connecting piece is detachably clamped on the clamping part through the clamping matching part. The clamping structure is simple, thus the assembly and disassembly operation is easy, meanwhile, a panel is assembled on the connecting piece, the convenient, quick and efficient disassembly and assembly effect between the side plate and the panel can be finally realized, a series of problems of difficulty in disassembly and assembly, inconvenience in operation and the like caused by the fact that the panel in the prior art can be fixed with the front bent part of the side plate only by adopting a fastener are solved, and the use experience of a user is improved.

The invention discloses a telescopic structure which comprises an inner pipe, an outer pipe, a telescopic assembly connected with the inner pipe and a driving surface arranged on the outer pipe, wherein the telescopic assembly comprises an elastic piece and a protruding part, one end of the protruding part abuts against the elastic piece, the other end of the protruding part extends out of the side wall of the inner pipe, an inclined surface is formed on the protruding part, the driving surface and the end face of the outer pipe are located at different horizontal heights, when the inner pipe moves towards the outer pipe, the driving surface extrudes the convex part to move inwards along the inclined surface, and then the outer pipe continuously extrudes the convex part along the inclined surface, so that the convex part is propped against the inner wall of the outer pipe to translate, and the inner pipe and the outer pipe are overlapped and shrunk along the axial direction. The invention further discloses a selfie stick, a lamp holder and a photography tripod. The matching structure of the telescopic assembly and joints is simple, and the assembly size is reduced; and the adjacent pipe bodies can contract automatically without independent operation, operation is easy and convenient, and the length control flexibility is high.

The invention belongs to the technical field of printed circuit boards and discloses a PCB with a step groove. A first groove is formed in the PCB; a second groove is formed in the bottom of the firstgroove; the cross section area of the second groove is smaller than that of the first groove; the first groove is matched with the second groove to form the step groove; a side wall of the first groove is a nonmetallic side wall; and a circuit pattern is arranged at the bottom of the first groove. According to the PCB with the step groove, through the arrangement of the second groove in the bottom of the first groove, the space in the step groove is more fully utilized; and components of multiple specifications can be arranged in the step groove, so that the assembly volume of the PCB is reduced.

The invention discloses an inspection robot camera lifting platform and a cable trench inspection robot, and relates to the technical field of cable inspection, and the inspection robot camera lifting platform comprises a working unit, a four-bar linkage assembly and a straight stroke driving mechanism; the working unit comprises a camera and a pitching mechanism, and the pitching mechanism can drive the camera to generate pitching action; the four-connecting-rod assembly comprises an upper long connecting rod, a lower long connecting rod, a head-end short connecting rod and a tail-end short connecting rod, and the head-end short connecting rod, the upper long connecting rod, the tail-end short connecting rod and the lower long connecting rod are sequentially hinged through a horizontal shaft; the straight-stroke driving mechanism comprises a straight-stroke driving source, the four-connecting-rod assembly is hinged to the straight-stroke driving source through a hinged shaft of a head-end short connecting rod and an upper-portion long connecting rod, and the working end of the straight-stroke driving source is in sliding fit with the upper-portion long connecting rod and the head-end short connecting rod. The cable trench has the advantage of being capable of better adapting to the narrow and cramped cable trench environment.

The invention relates to a heavy vehicle electro-hydraulic servo steering system and a control method capable of suppressing overshoot. The heavy vehicle electro-hydraulic servo steering system comprises a hydraulic subsystem, a mechanical subsystem, a data acquisition subsystem and a controller. The data acquisition subsystem is used for acquiring the actual turning angle of a steering wheel and the pressure of each pressure sensor; the controller calculates and outputs control voltage of the servo driver according to the target rotating angle of the system, the actual rotating angle of the steering wheel and the pressure of each pressure sensor so as to control the hydraulic subsystem. According to the invention, corner closed-loop control of the system can be realized, and system overshoot can be reduced while high-dynamic tracking control of the system can be realized.

The invention discloses a positioning device based on mechanical counting of a motor, comprising a shell. The shell is internally provided with a driving gear, a clockwise gear set and an anticlockwise gear set, wherein the clockwise gear set and the anticlockwise gear set are fit with the driving gear; the clockwise gear set comprises a pair of differential gears which are arranged at the same axis and have different tooth numbers; the anticlockwise gear set comprises a pair of differential gears which are coaxially arranged and have different tooth numbers; the shell is also internally provided with a clockwise stroke regulating mechanism and an anticlockwise stroke regulating mechanism which are fit with the clockwise gear set and the anticlockwise gear set respectively; and the clockwise gear set and the anticlockwise gear set are arranged at the same axis. By using the positioning device based on the mechanical counting of the motor, the inner structure of the device can be effectively regulated, so that the inner structure is more compact, simultaneously, and the whole volume of the positioning device can be effectively reduced. The positioning device disclosed by the invention can be used in the positioning field of curtain machines.

The invention relates to an electric vehicle controller based on single-tube parallel connection. The electric vehicle controller comprises a box body and a box cover; a thin-film capacitor, a magnetic ring assembly, a current sensor assembly, a composite busbar and a PCBA control panel are arranged in the box body; and the thin-film capacitor is connected with the composite busbar; a single-tube heat dissipation assembly and a three-phase plastic-coated polar plate are also arranged in the box body; the single-tube heat dissipation assembly comprises a radiator and a single-tube IGBT (Insulated Gate Bipolar Translator) and a temperature sensor which are arranged on the radiator; the single-tube IGBT is respectively connected with the thin-film capacitor and the PCBA control panel; the input end of the three-phase plastic-coated polar plate is electrically connected with the three-phase output end of the composite busbar, and the output end of the three-phase plastic-coated polar plate extends out of the box body and is electrically connected with the three-phase input end in the motor. Compared with the prior art, the single-tube IGBTs are adopted, so that a complex packaging process is avoided; the single-tube IGBTs are clamped on the two sides of the radiator for heat dissipation, so that the heat dissipation requirement of the controller can be well met; and the controller has the advantages of being high in integration, low in inductance, low in cost and high in vibration resistance.

The embodiment of the invention discloses a packaging structure of a microphone. The packaging structure of the microphone comprises an ASIC chip, an MEMS chip, a first rewiring layer and a second rewiring layer, wherein the ASIC chip is provided with a first rewiring layer distributed along the surface of the ASIC chip, and the ASIC chip is provided with a first silicon through hole penetrating through the thickness direction; the MEMS chip is provided with a second rewiring layer distributed along the surface of the MEMS chip, and the MEMS chip is provided with a second silicon through hole penetrating through the thickness direction; the ASIC chip is arranged on the MEMS chip in an overlapping manner; and the ASIC chip is connected with the MEMS chip through the first rewiring layer, the first through silicon via, the second rewiring layer and the second through silicon via. The packaging structure of the microphone is simple in structure and beneficial to miniaturization design of the microphone.

The embodiment of the invention discloses a head-up display and an automobile, and belongs to the field of image display. According to the embodiment of the invention, the DLP device, the refraction reflector and the imaging diffusion film are packaged in the DLP packaging shell to obtain the DLP display module, and then the DLP packaging shell is connected with the curved surface reflector packaging shell packaged with the first curved surface reflector unit and the second curved surface reflector unit to obtain the head-up display. Through the modular design, the structure of the head-up display is simpler and more compact, and the assembly volume of the head-up display is effectively reduced.