32results about How to "Even power distribution" patented technology

The invention relates to a bidirectional uniform irradiation antenna feed system. The system comprises a power division feed network (201) and multiple waveguide slit antenna arrays (118), wherein themultiple waveguide slit antenna arrays (118) are uniformly divided into two sets which are arranged up and down, each multiple waveguide slit antenna array (118) comprises eight waveguide slit antennas (402), the waveguide slit antennas (402) are arranged on a first power distributor (505) of the power division feed network (201), and the waveguide slit antennas (402) of the two waveguide slit antenna arrays (118) symmetric to each other up and down are arranged in a staggered mode. The system is advantaged in that bidirectional irradiation is employed, the top portion and the bottom portionrespectively have 32 waveguide slit antennas (402) which radiate to the middle, the radiation field is uniformly distributed, irradiation blind areas are effectively reduced, moreover, the waveguide slit antennas employ a standing wave array antenna mode, irradiation electromagnetic field length is uniformly distributed along the antenna direction, the two adjacent waveguide slit antennas are fedby different frequency sources, slits are in a mutual staggered mode, and electromagnetic field superposition is effectively reduced.

The invention relates to the field of low-voltage power supply facilities, in particular to an intelligent phase-change switch. The intelligent phase-change switch comprises a shell composed of an upper shell and a bottom shell. A switch handle and a terminal cover are arranged on the upper shell. The intelligent phase phase-change switch is characterized in that an N inlet terminal, L1 inlet terminal, L2 inlet terminal and L3 inlet terminal are arranged sequentially from left to right at the top end of the bottom shell, and a null line terminal and fire wire terminal are arranged at the bottom end of the bottom shell. The bottom shell is provided with a tripping electromagnetic switch corresponding to the N inlet terminal, three parallel commutating electromagnetic switches, an error-proof locking system and a switching mechanism. The armature end part of the phase-change electromagnetic switch is connected with a phase-change guide rod, and the end part of the phase-change guide rodis connected with a movable contact mounted on a movable head slider, and a static contact is correspondingly arranged below the movable contact, and the static contact is connected with the fire wireterminal through a wire. The invention has the advantages of simple and reasonable structure, low product noise, good arc extinguishing performance, good mechanical performance, high reliability andaccuracy of the motion mechanism, and is suitable for processing and manufacturing and mass production.

The invention relates to the field of low-voltage power supply facilities, and discloses a large-capacity intelligent phase-change switch which has larger load capacity, is high in integration and intelligence and is more suitable for processing and mass production. The large-capacity intelligent phase-change switch comprises a top casing, a bottom casing and a bottom plate which are installed inorder from front to back, the surface of the top casing is provided with a display control board, the center of the bottom casing is fixed with a motor, the rotation shaft of the motor is connected with an electromagnetic relay, the top portion of the electromagnetic relay is provided with an angle sensor, a main control board and a power module are fixed in the bottom casing, at least one set ofmoving contacts are uniformly distributed at the outer circumference of the electromagnetic relay, one sides of the moving contacts are provided with an opening detection circuit, the lower portions of the moving contacts are provided with locking sliding pieces, the inner sides of the locking sliding pieces are provided with trip assemblies, the moving contacts pass through moving contact supports, the moving contact supports are fixed on the bottom casing, and the outer sides of the moving contact supports are provided with fixed contacts corresponding to the moving contacts.

The invention discloses a stubble cleaning subsoiling fertilizer applying plowing combined operation machine. The machine comprises a rack, a central reversing reduction gear box is arranged on the rack, a stubble cleaning device is arranged in front of and below the rack, a rotary tillage device is arranged on the portion, located behind the stubble cleaning device, of the rack, a subsoiler is arranged on the portion, between the stubble cleaning device and the rotary tillage device, of the rack, a fertilizer applying mechanism is arranged above the rack, and a compressing depth limiting roller is hinged to the back portion of the rack; two level output shafts, namely, an output shaft and a lower output shaft are arranged on the central reversing reduction gear box, the upper output shaftis in linkage with the stubble cleaning device through a side transmission gear box, the lower output shaft is in linkage with the rotary tillage device, and the compressing depth limiting roller isin linkage with the fertilizer applying mechanism. The machine integrates operation processes of stubble cleaning, subsoiling, fertilizer applying, soil compression and the like and takes the operation processes as integrated functions, is high in production efficiency and applicable to carrying out multiple operations on soil keeping stubbles before sowing, and avoids that the machine enters a land for operations many times so as to make field soil compacted through a tractor.

The invention discloses a propane pre-cooling double-mixing refrigerant serial-connection liquefaction system, which comprises a pre-cooling cold box a, a pre-cooling cold box b, a liquefaction cold box a, a liquefaction cold box b, a deep-cooling cold box a, a deep-cooling cold box b, a propane pre-cooling circulating mechanism, a mixed refrigerant liquefaction circulating mechanism and a mixed refrigeration deep-cooling circulating mechanism, wherein the propane pre-cooling circulating mechanism comprises a three-grade compression unit; the mixed refrigerant liquefaction circulating mechanism comprises a first-grade compression unit; and the mixed refrigeration deep-cooling circulating mechanism comprises a first-grade compression unit. The liquefaction system provided by the invention adopts the propane pre-cooling double-mixing refrigerant parallel-connection refrigeration mode, and liquefaction and undercooling circulation respectively adopt independent mixing refrigerant refrigeration circulation; the power distribution of three compressor units (one pre-cooling circulation compressor, one liquefaction circulation compressor and one undercooling circulation compressor) is effectively balanced; the limitation on that the processing capability of the whole liquefaction device is affected because one compressor has too large power can be broken through; and meanwhile the maneuverability of the device can be improved.

The invention discloses a novel electrode structure, Include hanging frame, A suspension frame is fixedly connected with a plurality of odd-numbered electrode plates and an even-numbered electrode plate through a plurality of mount strips and connecting blocks, At one side of that top end of the odd-numbered electrode plate and the even-numbered electrode plate, a first opening and a conductive rod mount seat are fixedly provided, the other side of the top end of the electrode plate is fixedly provided with a second opening, two adjacent odd-numbered electrode plates are communicated with eachother through a first connecting water pipe, the adjacent two even-numbered electrode plates are communicated with each other through a second connecting water pipe, The conductive rod mounting seaton the odd-numbered electrode plate is connected with the second conductive rod, and the conductive rod mounting seat on the even-numbered electrode plate is connected with the first conductive rod. The novel electrode structure of the invention makes the temperature distribution of the electrode structure uniform when the electrode structure works through the arrangement of the inlet and outlet water structures of the electrode structure. By arranging the connecting structure of the first conductive rod and the second conductive rod, the power distribution of the electrode structure is uniform when the electrode structure is operated.