39results about How to "Increase the level of modularity" patented technology

A clock recovery circuit and a receiving chip, the reference sampling clock is phase-shifted by a first phase shifter to output n data sampling clocks and n phase sampling clocks; the sampling circuit samples data signals to output n data sampling signals and n phase sampling signals; the phase detector compares the n data sampling signals and n phase sampling signals respectively, and generates n judgment signals according to the comparison results; the charge pump integrates the n judgment signals to output adjustment level; the counting circuit counts according to the adjustment level, and converts the counting result into a selection signal and an interpolation control signal; the interpolation circuit selects two reference clocks from n data sampling clocks and n phase sampling clocks according to the selection signal, and Phase interpolation is performed on the two reference clocks according to the interpolation control signal to obtain an updated reference sampling clock to trigger the operation of the first phase shifter; therefore, the design difficulty is reduced and the risk of circuit loss is avoided.

The invention discloses a vacuum load switch for a high-voltage fixed switchgear, which includes an upper outgoing line of a knife switch, an isolation knife switch, an isolation knife seat, a vacuum interrupter, a lower moving contact, a lower outlet seat, and a connecting busbar , cable outlet plate, isolation knife insulation pull rod assembly, arc extinguishing chamber insulation pull rod assembly, operating mechanism and grounding device, isolation knife switch is connected in series with vacuum interrupter, isolation knife insulation pull rod assembly and arc extinguishing chamber insulation pull rod assembly are all connected with the operating mechanism Transmission connection, isolation knife seat, vacuum interrupter and lower outlet seat are solidly sealed together, the hinge end of the isolation knife switch is provided with a second contact finger spring, and the second contact finger spring is in contact with the isolation knife switch and the isolation knife seat respectively , There is a first contact finger spring at the moving end of the vacuum interrupter, and the first contact finger spring is respectively in contact with the lower moving contact and the lower outlet seat. The invention has high insulation strength, meets environmental protection requirements, is convenient to assemble and use, has high modularization level, and is suitable for standardized and large-scale production.

The invention relates to a detection air duct of indoor air environment monitoring equipment.The vertically-extending detection air duct is arranged in a shell of the indoor air environment monitoring equipment.An air inlet is formed in the lower end of the detection air duct, and an air outlet is formed in the upper end of the detection air duct.A fan for providing power for detection airflow flowing from bottom to top is installed in the detection air duct.A sensor set for detecting detection airflow is also arranged in the detection air duct.According to the arrangement, the sensor set composed of six sensors comprising a temperature and humidity sensor, a CO sensor, a CO2 sensor, a formaldehyde sensor, a PM2.5 sensor and the like is installed in the detection air duct in an integration mode, detection of the sensors is not affected, and comprehensive detection of indoor airflow is achieved; meanwhile, the detection air duct is simple in structure, remarkable in effect and suitable for being used and popularized.

The invention provides an underwater large-field-of-view continuous zooming optical system, thereby solving problems of small field of view angle, small zoom ratio, small system size, and complicatedsystem structure of the existing underwater continuous zooming optical systems. The provided underwater large-field-of-view continuous zooming optical system comprises a window, a front fixed mirror group, a zooming mirror group, a diaphragm, an intermediate fixed mirror group, a compensation mirror group, an aberration stabilizing mirror group, a rear fixed mirror group, and a filter that are arranged successively and coaxially in an optical axis direction. The front fixed mirror group includes a first glue mirror group having the positive focal power and a second positive lens. The zooming mirror group includes a second negative lens and a second glue lens group having the negative focal power. The intermediate fixed lens group includes a fourth positive lens group a third glue lens group having the positive focal power. The compensation mirror group includes a fifth negative lens and a sixth negative lens. The aberration stabilizing mirror group includes a sixth positive lens. And the rear fixed mirror group includes a seventh positive lens, a seventh negative lens, and an eighth positive lens. The zooming mirror group, the compensation mirror group, and the aberration stabilizing mirror group can move linearly back and forth in an optical axis direction.

The invention relates to a transmission line isolation type linear transformer drive source. The drive source comprises a switched capacitor primary energy module, an isolated transmission line and an induced voltage superposition module; the switched capacitor primary energy module comprises M-level primary energy boxes arranged in parallel, each level of primary energy N switch capacitor modules are connected in parallel in the box; all high-voltage gas switches in the N switch capacitor modules are triggered in parallel by one trigger signal synchronously; the induced voltage superposition module includes an M-level annular induction cavity, and the M-level annular induction cavity is arranged in series; each There are magnetic cores and N radial transmission lines evenly distributed along the circumference in the ring-shaped induction cavity; the invention solves the problem that the switch is placed in the existing LTD technology by isolating the switched capacitor primary energy module and the induced voltage superposition module. The problem of reduced breakdown performance and high maintenance work caused in the induction cavity also solves the problem of the inability to achieve voltage superposition in Thor-type devices.

The invention discloses a projection objective lens and an exposure system. The projection objective lens comprises a first lens group with positive focal power, a second lens group with negative focal power, a third lens group with positive focal power, an aperture diaphragm, a fourth lens group with positive focal power, a fifth lens group with negative focal power and a sixth lens group with positive focal power which are sequentially arranged from object plane along optical axis, wherein the first lens group and the sixth lens group are symmetrical based on the aperture diaphragm, the second lens group and the fifth lens group are symmetrical based on the aperture diaphragm, the third lens group and the fourth lens group are symmetrical based on the aperture diaphragm, and the following relational expressions are satisfied that f1 / f2 is more than -0.7 and less than -0.3, f2 / f3 is more than -1.1 and less than -0.6, f5 / f4 is more than -1.1 and less than -0.6, f6 / f5 is more than -0.7and less than -0.3, wherein f1, f2, f3, f4, f5, and f6 are the focal lengths of the first lens group, the second lens group, the third lens group, the fourth lens group, the fifth lens group, and thesixth lens group respectively. According to the technical scheme provided by the embodiment of the invention, the compatibility of the projection objective lens is improved, and the modularization level of an exposure system is improved.

The invention discloses a vacuum load switch for a high-voltage fixed switchgear, which includes an upper outlet of a knife switch, an isolation knife switch, an isolation knife seat, a vacuum interrupter, a lower movable contact, a lower outlet seat, a cable outlet plate, Isolation knife insulation pull rod assembly, arc extinguishing chamber insulation pull rod assembly, operating mechanism and grounding device, isolation knife switch is connected in series with vacuum interrupter, isolation knife insulation pull rod assembly and arc extinguishing chamber insulation pull rod assembly are all connected to the operating mechanism by transmission, isolation knife The seat, the vacuum interrupter and the lower outlet seat are solidly sealed together, and a fuse is connected in series between the lower outlet seat and the cable outlet plate. The invention integrates a vacuum load switch and a fuse, can effectively protect against lightning strikes and overcurrent, protects equipment, meets environmental protection requirements, and is convenient to assemble and use.

The invention relates to an experimental device for size coordination between building space and interior parts. The experimental device is a space body enclosed by a top plate, a side wall and a bottom plate. Intersecting tracks are arranged on the bottom plate. A slide rail corresponding to the track on the bottom plate is arranged on the top plate; the side wall is enclosed by the first side wall, the second side wall, the third side wall and the fourth side wall that are sequentially abutted against each other As a result, the first side panel and the second side panel are fixedly connected to the bottom panel and the top panel, the third side panel and the fourth side panel are slidingly connected to the bottom panel and the top panel; the third side panel Both the side wall and the fourth side wall are composed of a plurality of side wall units vertically arranged side by side, and adjacent side wall units are provided with fittings that cooperate with each other to fix the adjacent side wall units to each other. The invention is used to test the coordinate size relationship between the dimensions of various functional spaces of a house and the specifications of interior parts, and provides data support for forming a series of general sizes of interior parts of houses in my country.

Provided are a tray-free cassette caddy (1) and an automatic drive device thereof. The caddy (1) comprises an internal caddy (2) of which an inner wall is smooth, an upper cover (51) and a lower cover (52), wherein a caddy shell (5) is formed by the upper cover (51) and the lower cover (52) which are fixed together, protruding internal caddy sliders (21) are provided on the two side walls of the internal caddy (2), depressed caddy shell internal grooves (53) are provided at the two sides of the internal wall of the caddy shell (5), and the caddy shell internal grooves (53) and the internal caddy sliders (21) are tabled with one another, so that the internal caddy (2) can be smoothly pulled and pushed in the caddy shell (5), and an automatic drive device for the caddy (1) is developed. The caddy (1) in the present invention is used for storing high-density compact discs (24) which are easy to preserve and exchange, so that the automatic operation process of randomly taking out a compact disc (24) from the caddy (1) and putting same into a standard compact disc driver for reading and writing operations, and putting back the compact disc (24) in the compact disc driver into the caddy can be realized, thereby providing a core technology basis for forming modular compact disc jukeboxes and offline jukeboxes of various sizes.