12results about How to "Minimization requirements" patented technology

The application provides a multi-frequency antenna and a communication device. The multi-frequency antenna comprises a reflecting plate, a first radiating unit and a second radiating unit, the first radiating unit and the second radiating unit are arranged on one side of the reflecting plate, and the first radiating unit is located between the reflecting plate and the second radiating unit. The first radiating unit comprises a first radiating part and a metal plate, and the metal plate is located between the first radiating part and the second radiating unit. The second radiating unit comprises a second radiating part and a metal ring, and the metal ring is located between the second radiating part and the metal plate. When the above structure is adopted, the size of the multi-frequency antenna as a whole can be reduced, and the first frequency band and the second frequency band have high isolation, so that the two frequency bands can work independently, the multi-frequency antenna can meet the miniaturization demand of the common antenna surface, the antenna works stably, and the efficiency is high.

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

The utility model discloses a zooming lighting module and lighting device relates to lighting device technical field, and zooming lighting module includes light source and zooming component, and zooming component includes drive arrangement, has the first lens of negative optical power and has the second lens of positive optical power, and first lens and second lens all set up in the emergent light direction of light source, and second lens is coaxial with first lens and is set up between first lens and light source, and drive arrangement is used for driving second lens and translates between first lens and light source, to make the light column of light source converging or diverging, and this zooming lighting module lens group number is less, can reduce the refraction number of light in reducing the volume of lighting module, satisfy miniaturization and light weight demand, guarantee effective illumination intensity. Lighting device, including above-mentioned zooming lighting module, cost is low, and the volume is small, can be applicable to a variety of mobile / non - mobile scene need.

The utility model discloses a kind of small low-frequency filter single cavities, including cavity, cover plate, resonator outer tube, resonator inner rod and resonator ring, the top of cavity is equipped with cavity mouth, cover plate is covered in the top of cavity and seals cavity mouth;Resonator outer tube is vertically arranged in cavity, the lower end of resonator outer tube is connected with cavity;Resonator inner rod is inserted into resonator outer tube, the upper end of resonator inner rod is connected with cover plate, there is first gap between resonator inner rod and resonator outer tube and generates capacitance at first gap;Resonator ring is connected on the downside of cover plate, the upper end of resonator outer tube is inserted into resonator ring, there is second gap between resonator outer tube and resonator ring and generates capacitance at second gap.The utility model can produce enough large capacitance with smaller size, form low-frequency resonance, the filter formed by arranging multiple low-frequency filter single cavities together, with the characteristics of low frequency, small size, light weight, low cost.

The utility model discloses a PXIE high-speed storage module which comprises a 3U PXIE standard card board, an FPGA module, an optical fiber module and an SSD storage group are welded on the 3U PXIE standard card board, and the FPGA module is electrically connected with the optical fiber module through GTH and I2C data lines; the SSD storage group comprises two SSDs (Solid State Disks) which are electrically connected with the FPGA module through PCIE (Peripheral Component Interface Express) X4 data lines; according to the utility model, the two SSDs are independently connected with the FPGA module through the PCIE X4 interface to form a 2 * PCIE X4 parallel storage channel. When data is written or read, the FPGA module can distribute data to the two SSDs at the same time, bandwidth superposition is achieved, the SSDs support the NVME protocol, and compared with a traditional SATA protocol, delay can be greatly reduced, the throughput capacity can be greatly improved, and the high-speed read-write requirement can be met; and a PCIE channel is used as a main data path of a host end, and PCIE GEN3X8 can support unidirectional transmission with the highest speed of about 8GB / s, so that high-speed data exchange between the host and the storage module is ensured.

The application relates to a quick plug-in structure and a plug, which comprises a plug and a socket, the plug shell has a pin mounting hole and a pin contact, the socket shell has a socket mounting hole and a socket; the pin contact comprises a front-end pin capable of axially reciprocating relative to the plug shell, the tail of the front-end pin is further connected with an elastic member; the front-end pin is further provided with a moving part capable of reciprocating along the radial direction of the front-end pin; when the socket is combined, the end face of the socket mounting hole stops and limits the moving part, and the elastic member is compressed; when the moving part is radially extruded and enters the release groove on the side wall of the socket mounting hole, and the front-end pin is axially moved and quickly combined under the pushing of the elastic member; when the socket is separated, the front end of the release groove stops and limits the moving part, the elastic member is stretched, the sliding part keeps contact with the socket; the moving part is separated from the release groove under the radial extrusion, and the front-end pin is quickly separated from the socket. The application shortens the plug-in time and weakens the burning influence of the electric arc.

The embodiment of the utility model relates to the technical field of terminals, and particularly discloses a terminal which comprises a shell, a control panel, an antenna and a connecting assembly, the shell is provided with a containing cavity, the control panel is arranged in the containing cavity, the antenna is arranged in the containing cavity, one end of the connecting assembly is arranged on the control panel, and the other end of the connecting assembly is arranged on the antenna. The other end of the connecting assembly abuts against the antenna, and the connecting assembly is electrically connected to the control panel and the antenna. Through the mode, the antenna and the control panel are electrically connected through the connecting assembly, and compared with a connector, the connecting assembly occupies a small space, so that the terminal occupies a small space, and the requirement of miniaturization of the terminal is met.

The utility model relates to an electromagnetic switch and storage box, including electromagnet subassembly and permanent magnet subassembly, electromagnet subassembly includes at least two in first direction sequential interval arrangement's magnetic core, wherein two adjacent magnetic core is first magnetic core and second magnetic core, and the first magnetic core and second magnetic core are wound with coil, and permanent magnet subassembly has at least first magnetic pole, second magnetic pole, third magnetic pole and fourth magnetic pole.

The utility model discloses a motor integrated variable vacuum capacitor, which comprises a vacuum capacitor and a motor, the vacuum capacitor comprises two electrode groups and a positioning rod fixed on one electrode group, and an output shaft of the motor is directly connected with the positioning rod in a threaded manner. The motor is used for driving the positioning rod to do linear motion in the axial direction through the output shaft so as to change the relative position of the two electrode sets. According to the utility model, by adopting the integrated structure design and installation mode that the output shaft of the motor is directly connected with the positioning rod of the vacuum capacitor, the influence of connecting pieces and mutual fit clearances thereof on the position of an electrode group of the variable vacuum capacitor is reduced, the capacitance precision of the variable vacuum capacitor is improved, and the volume of the variable vacuum capacitor is greatly reduced; and meanwhile, the manufacturing cost is reduced, and the requirements on high capacitance precision and miniaturization of the variable vacuum capacitor in the field of semiconductor manufacturing equipment are met.

The application discloses a printed board connector and relates to the technical field of electric connectors. The connector comprises a shell, a contact piece, a tail screw cap, a printed board, a grounding wire, a grounding screw, a pouring layer and a plugging body. The rear end of the shell has an inner cavity, and a lateral groove extending to the rear end face in the axial direction is formed in the side wall of the shell. One part of the printed board is electrically connected with the contact piece, and the other part is led out of the shell through the lateral groove. The grounding wire is connected with the grounding layer of the printed board and is connected with the grounding screw after passing through the wire hole on the partition plate of the tail screw cap, and the grounding screw is screwed into the threaded hole of the partition plate. The rear end pouring cavity of the tail screw cap is provided with the pouring layer, and the lateral groove is provided with the plugging body. The printed board is led out through the lateral groove to replace the traditional wire harness, and the tail space and weight are greatly reduced. The low-impedance grounding path is formed by the grounding wire, the grounding screw, the tail screw cap and the shell, and reliable shielding grounding is achieved.

The application relates to the technical field of vehicle engines, and discloses a vehicle engine system and a vehicle, which comprise: a cylinder body provided with a water jacket cavity for containing cooling liquid, the side wall of the cylinder body is provided with a water jacket water outlet, the water jacket water outlet is communicated with the water jacket cavity; a cylinder head arranged at the top of the cylinder body, the cylinder head is provided with a water inlet channel, the water inlet channel is communicated with the water jacket cavity; an EGR cooler provided with an EGR water inlet and an EGR water outlet, the EGR water inlet is communicated with the water jacket water outlet, the EGR water outlet is communicated with the water inlet channel, the cooling liquid in the water jacket cavity is guided out of the EGR cooler through the water jacket water outlet and is guided back into the water jacket cavity through the water inlet channel. Therefore, by directly connecting the EGR cooler with the water jacket cavity, the pipeline integration degree of the engine system is higher, the product miniaturization requirement can be met, and the cost is reduced.

The utility model discloses a kind of breast pumps, it is related to maternal and infant articles technical field, wherein, breast pump includes host computer, breast shield, milk storage container and dust cover;Host computer includes negative pressure pump mechanism;Breast shield includes the flange of adhering breast and the milk outlet of discharging milk into the milk storage container, negative pressure pump mechanism can directly or indirectly cause negative pressure to be generated in breast shield, to provide suction power for breast pump;Host computer, milk storage container, breast shield mutually cooperate and form integrated all-in-one breast pump complete machine;Dust cover and breast pump complete machine at least include two assembly forms, under the first assembly form, dust cover covers in breast shield to provide dustproof function;Under the second assembly form, dust cover is assembled or cooperated with breast pump complete machine, to support breast pump complete machine to keep upright or prevent the attitude of milk liquid overflow.The utility model provides breast pump, solved the problem that milk liquid is easy to flow out from exhaust structure, improve the use experience of user.