125results about How to "Reduce connections" patented technology

The invention relates to a cassette cleaning process and a cleaning device thereof. The invention discloses a cassette cleaning process which is used for sequentially performing spraying, ultrasonic cleaning and bubbling rinsing procedures on a cassette. Wherein in the bubbling rinsing step, gas with a certain flow rate is filled into liquid to form tiny bubbles, so that tiny particles falling off in the ultrasonic cleaning step are taken away. The cassette cleaning process has the advantages that tiny particles which fall off during ultrasonic cleaning and then are attached to the surface layer are timely and effectively peeled off again and discharged, secondary attachment is avoided, and the cleaning efficiency and effect are improved; and large-size particles and residual chemical substances in the cassette are cleaned through spraying, so that various types of pollutants are cleaned.

The invention relates to the technical field of engine oil filters, in particular to a multistage filtering engine oil filter which comprises a shell, a filter paper frame is coaxially arranged in the shell, the surface of the filter paper frame is coaxially sleeved with a rough filtering inner sleeve, and the surface of the rough filtering inner sleeve is movably sleeved with a rough filtering outer sleeve capable of moving up and down. First filter holes for rough filtration are uniformly distributed in the surfaces of the rough filtration inner sleeve and the rough filtration outer sleeve, the rough filtration outer sleeve moves up and down to enable the first filter holes in the rough filtration outer sleeve and the first filter holes in the rough filtration inner sleeve to be in a staggered closed state, a lower opening is formed in the lower end of the shell, and a collecting cover is coaxially mounted at the lower end of the shell; the invention aims to solve the problem that after the bypass valve of the engine oil filter is opened, impurities attached to filter paper are easily separated from the filter paper and flow to the positions of all oil-consuming parts of an engine through the bypass valve along with engine oil.

The utility model discloses an explosion-proof and intrinsically safe frequency conversion speed regulation control box body for a digging and anchoring all-in-one machine, a main cavity and a wiring cavity are arranged in the box body, the main cavity is divided into a main control cavity, a frequency conversion cavity, a reactor cavity and a transformer cavity through cooling partition plates, and wire passing channels are arranged on the cooling partition plates. According to the utility model, a mainstream single control box or a control box body and a variable frequency speed regulation box body are integrated into a variable frequency speed regulation and control integrated box body, so that the control function is enhanced, and at the same time, the cable passing between the cavities inside the main cavity is realized. Cable connection between the electric control box bodies is greatly reduced, and fault points and installation workload are reduced.

The utility model provides a concrete admixture production sewage treatment system which comprises sewage treatment equipment, a PLC (Programmable Logic Controller) and an oxygen storage tank, the sewage treatment equipment is arranged outside a concrete admixture processing plant, and a sealing cover is arranged at the top of the sewage treatment equipment; a plurality of reaction areas such as a grating tank, a regulating tank, a sludge tank, a clean water tank, an oxidation tank, a coagulation reaction tank, a coagulation sedimentation tank, a secondary reaction tank, a secondary sedimentation tank, an intermediate tank I and an intermediate tank II are arranged in the device. According to the system disclosed by the utility model, a partitioned module design is adopted, different module functions can be flexibly customized and designed according to different water qualities, the applicability of the system is improved, and sewage treatment equipment is simple in structure, small in occupied area and low in cost. The sewage treatment equipment with integrated design and the internal treatment units are mutually connected, so that the connection of pipelines is greatly reduced, communication can be realized only by punching holes in the inner wall, and the sewage treatment cost is greatly saved.

The present invention discloses a signal processing method, device, system and storage medium for a display device, wherein the method comprises: a mainboard chip acquires a control signal, performs a first encoding on the control signal, and obtains multiple groups of first parallel signals; a signal output chip performs a second encoding on multiple groups of the first parallel signals, and obtains compressed signals; a signal receiving chip decodes the compressed signal, and obtains multiple groups of second parallel signals; a logic board chip performs a third encoding on multiple groups of the second parallel signals, and obtains display signals, and transmits the display signals to a display screen. The present application simplifies the wiring process during the transmission process by compressing and then decompressing the parallel signal during the signal transmission process.

The utility model discloses an integrated joint module and robot relates to motor technical field, and the integrated joint module includes: casing, motor, planetary gear reduction box, encoder and drive control board, the casing is the tubular structure, the motor is used to provide power, and the motor includes stator, rotor and rotation axis, and the stator is hoisted in the top inside casing, and the rotor rotatably sets up inside casing, and is located stator outside, and rotation axis is connected with the rotor, and its outer periphery is provided with the tooth, the planetary gear reduction box sets up in stator inside, and including fixedly installed inside stator's inner tooth ring, the planetary wheel that engages in the inner tooth ring with rotation axis between and the planetary wheel connection's planet carrier, the encoder includes the first encoder for monitoring rotation axis and the second encoder for monitoring planet carrier, and drive control board is located in casing, and is connected with motor. Such setting, can reduce the size of joint structure, realizes double magnetic encoder output configuration simultaneously, improves its output accuracy.

The present invention provides a receiver, which includes: a housing having a hollow inner cavity; a diaphragm mechanism, which is arranged in the hollow inner cavity and divides the hollow inner cavity into a first cavity and a second cavity, the diaphragm mechanism includes a vibration plate, the fixed end of the vibration plate is connected to the inner wall of the housing, and the free end of the vibration plate is suspended in the hollow inner cavity; an electromagnetic drive mechanism, which is arranged in the hollow inner cavity, and includes at least one coil assembly and at least one magnetic field assembly, wherein each magnetic field assembly is arranged in the first cavity or the second cavity, and the magnetic field assembly is close to the free end of the vibration plate; each coil assembly is arranged in the first cavity or the second cavity, the coil assembly is close to the fixed end of the vibration plate, and a predetermined gap is arranged between the coil assembly and the fixed end of the vibration plate. Compared with the prior art, the present invention can reduce the connection between moving parts, thereby simplifying the assembly process and reducing the manufacturing cost.

The invention provides a three-phase motor and a servo device, and relates to the technical field of motors. The three-phase motor at least comprises four output terminals, namely a U-phase terminal, a V-phase terminal, a W-phase terminal and an O terminal, and the U-phase terminal, the V-phase terminal and the W-phase terminal are arranged in the circumferential direction, namely, the U-phase terminal, the V-phase terminal and the W-phase terminal are arranged in the circumferential direction; the O terminal is located at a first position between the V-phase terminal and the W-phase terminal or at a second position between the U-phase terminal and the V-phase terminal, namely, the O terminal is exchanged with the original W-phase terminal or the V-phase terminal. Therefore, the Y-type connection method is kept unchanged, and the problems of bridging terminal connection and easy occurrence of interphase short circuit do not exist when the Y-type connection method is changed into the delta-type connection method.

The utility model relates to a vertical tube course integral type fog cooler belongs to energy -conserving and environment -protecting technical field, and the vertical casing independently is provided with condensing chamber, demisting chamber and confluence chamber, is provided with condensing pipe group in condensing chamber, demisting chamber and confluence chamber pass through condensing pipe group intercommunication, first demister is provided in demisting chamber, and after the outside saturated wet gas enters vertical casing, passes first demister and condensing pipe group tube in proper order and is discharged from confluence chamber. The application integrates demisting and condensing function in vertical casing, and through independent chamber cooperation, replaces two sets of independent equipment, greatly reduces the floor area and external pipeline connection, reduces system resistance and energy consumption, simultaneously simplifies the installation process, reduces equipment purchase and operation cost.

The utility model discloses a kind of fresh air module and air conditioning equipment.New air module includes shell, centrifugal fan wheel and electric control box, shell includes first side plate, and first side plate is equipped with air pipe interface;Centrifugal fan wheel is arranged in shell, the axial direction of centrifugal fan wheel is parallel to first side plate, electric control box and air pipe interface are arranged along the length direction of first side plate with interval, the width direction of electric control box is parallel to the length direction of first side plate, the length direction of electric control box is parallel to the axial direction of centrifugal fan wheel, electric control box includes connected box body and box cover, and part of first side plate constitutes part of box body.The utility model discloses new air module, the box body of electric control box and the second part of first side plate share sheet metal part, cancel independent electric control box shell, not only reduce the quantity of parts, improve structure compactness, also reduce the mold development of electric control box sheet metal part, reduce manufacturing cost.And, the connecting procedure of electric control box and side plate is saved, and assembly and operation and maintenance efficiency are improved.

This invention provides a portable air conditioner integrating drying and preservation, relating to the field of air conditioning technology, and designed to solve the problem of low energy utilization in portable air conditioners. The portable air conditioner includes a housing, within which are a first heat exchange chamber, a second heat exchange chamber, and a storage chamber. The housing has a first air inlet, a second air inlet, and an air outlet. Both the first air inlet and the air outlet are connected to the first heat exchange chamber, which houses a first heat exchanger and a first fan. The second air inlet is connected to the second heat exchange chamber, which is also connected to the storage chamber via the air outlet. The second heat exchange chamber is isolated from the first heat exchange chamber and houses a second heat exchanger and a second fan. The storage chamber also has an exhaust port configured to connect to an exhaust pipe. This invention can fully utilize waste heat or waste cold energy generated during the cooling or heating process of a space, thereby achieving efficient resource utilization and reducing energy consumption.

The utility model provides mobile skid-mounted hydrogenation equipment and a skid-mounted hydrogen refueling station, and relates to the technical field of hydrogen refueling stations, the mobile skid-mounted hydrogenation equipment comprises a 20MPa pressurizing pry and a 45MPa pressurizing pry which are communicated, each of the 20MPa pressurizing pry and the 45MPa pressurizing pry comprises a compressor, a water chilling unit, an air compressor, a diffusion tower, a control cabinet and a power supply cabinet which are integrated on a base, and the compressors comprise a 20MPa compressor and a 45MPa compressor; the 20MPa pressurizing pry further comprises a hydrogen storage tank, a first hydrogen inlet of the 20MPa compressor is connected with hydrogen production equipment, and a first hydrogen outlet of the 20MPa compressor is selectively communicated with the hydrogen storage tank, the 45MPa pressurizing pry and the long tube trailer; the 45MPa pressurizing pry further comprises a hydrogenation machine, a second hydrogen inlet of the 45MPa compressor is communicated with the first hydrogen outlet, and a second hydrogen outlet is connected with the vehicle-mounted bottle; the water chilling unit is arranged at the first hydrogen outlet and the second hydrogen outlet; the diffusing tower is communicated with the compressor, the hydrogen storage tank and the hydrogenation machine; the control cabinet and the power supply are electrically connected with the compressor, the water chilling unit, the air compressor and the diffusing tower respectively. Skid-mounted integration is adopted, pipeline connection is few, the occupied use area and space are smaller, and movement is more convenient.

The application discloses a double-specification inoculation ring push-scraping groove mold, which comprises a limiting plate one arranged in a rectangular plate body structure, a butt joint column one end symmetrically connected to the bottom end of the limiting plate one, and the other end of the butt joint column connected to the surface of a limiting plate two, the bottom end of the limiting plate one hingedly connected to a front fixed plate, and a positioning ring symmetrically arranged on the two sides of the front fixed plate. The double-specification inoculation ring push-scraping groove mold is provided with a push-scraping groove one and a push-scraping groove two arranged on the surface of a male mold plate in an interlaced and equidistant manner. Due to the symmetrical circular groove structure of the two ends of the push-scraping groove one and the push-scraping groove two, the two ends of the push-scraping groove one and the push-scraping groove two are penetrated by a pulling needle and a ejector pin rod according to production needs, the inoculation ring is inoculated in the interior of the push-scraping groove one and the push-scraping groove two through the penetration of the pulling needle and the ejector pin rod, the formed inoculation rings of different sizes are pushed out, the corresponding ejection environment is provided for the inoculation rings of different sizes, and the application range of the pulling needle and the ejector pin rod is increased.

The invention discloses a manual-automatic integrated servo motor, and belongs to the technical field of electromechanical transmission of industrial equipment. The servo motor comprises a motor, a servo driver, a manual unlocking mechanism, a wiring terminal, a cooling fin and a fan; the manual unlocking mechanism is installed on the side face of the motor, the servo driver is installed on the upper surface of the motor through the heat insulation plate, and the wiring terminal is installed on the side face of the servo driver. The fan is embedded in the cooling fin, and the cooling fin is installed above the servo driver through a bottom plate of the cooling fin and is used for cooling the servo driver, so that the servo driver is always kept at a normal temperature. The overall size and weight of equipment and the number of wires between the server and the motor can be reduced, when the motor breaks down and cannot be powered on for use, the manual mode can be switched to, and an operator can control the motor to rotate through an input shaft at the tail end of the hand-operated motor.

The utility model discloses a light sterilization cabinet for risky fabrics. The sterilization cabinet comprises a cabinet body, an upper cover, a lifting mechanism and a sterilization cabin, wherein the lifting mechanism and the sterilization cabin are arranged in the cabinet body; the top opening of the cabinet body is provided with an openable upper cover; an upper heating plate is fixed on the bottom surface of the upper cover; a lower heating plate is arranged in the sterilization cabin, and risk fabrics are placed in the sterilization cabin; the lifting mechanism is fixed in the cabinet body and is used for driving the lower heating plate to lift so as to be matched with the upper heating plate to compress, heat and sterilize the to-be-treated risky fabric in the sterilization cabin; the sterilization cabinet adopts an extrusion heating-high temperature convection combined mode under a sealing condition to effectively sterilize risky fabrics, and has the advantages of high efficiency, low energy consumption, portability and multi-scene application.

The utility model belongs to the field of automobile combination switch, for a new type combination switch, including handle base, left handle and right handle, left handle and right handle all include handle switch and handle base, handle base includes upper cover and lower cover, lower cover includes top cover, bottom cover and PCB board again, top cover, bottom cover all include left side cover body part and right side cover body part, left side cover body part and right side cover body part are connected through arc slot cover between, PCB board includes left PCB board and right PCB board, left PCB board and right PCB board are connected through arc PCB board between, left PCB board and right PCB board are connected through PCB internal wiring between, top cover, bottom cover connect after with PCB board fixed in lower cover. The utility model has redesigned a handle base, connects left and right two PCB boards as a whole, can save the wire harness and wire harness adapter of connecting left and right PCB boards, and worker assembly is simpler, and the performance is more stable, and the anti -interference is good.

The utility model relates to a fan coil driving device and an air conditioner control system. The device comprises a controller, a power supply module, a first communication module, at least one fan speed regulation module and a power supply switch module, the power supply module is connected with commercial power input and generates power supply voltage. The fan speed regulation module is connected with the controller and the corresponding fan coil, generates a rotating speed feedback signal, inputs the rotating speed feedback signal to the controller and generates a speed regulation signal to be issued to the fan coil; the power supply switch module is connected with the controller and the power supply module and is used for switching on or switching off corresponding power supply of the power supply module to the fan coil; the first communication module is connected with the controller and an upper computer and used for communication between the controller and the upper computer. According to the utility model, the communication module is integrated in the driving device to directly carry out data transmission with the upper computer, so that redundant line connection between equipment can be reduced, and the product layout space is saved.

This invention discloses an infrared receiver, comprising a photodiode chip, a transistor chip, a resistor, a chip carrier, and a package. The photodiode chip, transistor chip, and resistor are fixed on the top of the chip carrier, and the package surrounds the top of the chip carrier. The bottom of the chip carrier extends out of the package and is provided with a control pin, a collector pin, and an emitter pin. The photodiode chip and the transistor chip are electrically connected. The resistor is connected across the two electrodes of the photodiode chip, and the transistor chip is electrically connected to the control pin, the collector pin, and the emitter pin, respectively. This infrared receiver retains the characteristics of photodiodes, such as a large detection angle, fast response speed, and low temperature drift, while also enabling signal amplification, facilitating control, having short interconnections between components, strong anti-interference capability, and a high signal-to-noise ratio.

The invention belongs to the technical field of anchor rod supporting equipment. In order to solve the problems that equipment parameter measurement and part control are difficult to be accurate, and full-automatic operation cannot be really realized, the invention provides a control system and a control method of a full-electric jumbolter for a coal mine. The control system comprises a rack, a drilling machine lifting device, a drilling box feeding device, a drilling box assembly, a drilling rod clamping device, an anchor rod clamping device and a top plate supporting assembly, and further comprises an upper computer, a lower computer and an executing mechanism, and servo motors are arranged in the drilling machine lifting device, the drilling box feeding device, the drilling rod clamping device and the anchor rod clamping device; a plurality of sensors are arranged in the drilling box assembly and the top plate supporting assembly, the lower computer receives feedback signals of the sensors and operates an automatic control program to control the execution mechanism to act, and the upper computer displays the feedback signals of the lower computer and the operation state of the execution mechanism. And by adopting an electric driving mode, the space is saved, the accuracy of an electric control system is higher, and the automation degree is improved.

The invention provides a high-temperature-resistant high-precision servo control air conditioning device which comprises an integrated control execution unit, and the integrated control execution unit comprises an electro-hydraulic servo valve, an actuator cylinder, a displacement sensor and a valve assembly. A piston and a rotating shaft are arranged in the actuating cylinder, and oil cavities are formed in the two sides of the piston. The electro-hydraulic servo valve is used for converting electric signals into hydraulic signals, and a first output oil port and a second output oil port of the electro-hydraulic servo valve communicate with the oil cavities in the two sides of the piston correspondingly. And the displacement sensor is used for feeding back the real-time position of the piston to facilitate closed-loop control. The valve assembly is used for adjusting the outlet flow of a load compressor and a turbine of the power device. According to the high-temperature-resistant high-precision servo control air conditioning device, the overall space occupation and weight of the device can be reduced, the response speed of the device is increased, the adjusting precision of the device is improved, and therefore the multiple use requirements of surge prevention, ice prevention, cooling and the like are met.

The utility model discloses a kind of real-time speed measurement motor with anti-suction function, including motor assembly and rear cover, rear cover is connected with anti-suction check valve and rotational speed sensor;The shell of the motor assembly is equipped with oil inlet A and oil return B, and the shell of the rear cover assembly is equipped with oil inlet A and oil return B.The utility model adopts integrated arrangement hydraulic element, installation space is compact, utilizes motor internal oil cavity to reduce pipeline connection, and it is easy to operate.

The application discloses a flue gas analyzer with a flue gas pretreatment structure, and aims to provide a flue gas analyzer with compact structure and reduced absorption effect of condensed water on flue gas. The application comprises a host, wherein a flue gas pretreatment structure is arranged in the host, the flue gas pretreatment structure comprises a gas-liquid separation module, a desiccant module and a heat dissipation module which are connected in sequence, the gas-liquid separation module comprises a gas chamber shell, a cavity is arranged in the gas chamber shell, an air inlet nozzle, an air outlet nozzle and a water outlet nozzle which are in communication with the cavity are arranged on the gas chamber shell, the desiccant module comprises a temperature control module, a frost film and a temperature detector, the temperature control module is arranged on the inner side of the heat dissipation module, and the frost film and the temperature detector are both arranged on a temperature control surface of the temperature control module. The application is applied to the technical field of flue gas analyzers.

The utility model discloses a high-concentration organic wastewater treatment device which comprises a tank body, the top end of the tank body is connected with a water inlet pipe through a rotary water distributor, and the interior of the tank body is divided into an electrolytic catalytic oxidation area, an anaerobic reaction area and a sediment backflow area from top to bottom; the electrolytic catalytic oxidation zone is provided with a plurality of titanium-based electrode plates which are arranged in parallel at intervals, a porous ceramic catalyst is filled between the titanium-based electrode plates, the anaerobic reaction zone is divided into a plurality of reaction chambers by a plurality of baffle plates, the adjacent baffle plates in the vertical direction deviate from each other, the bottoms of the baffle plates are provided with flow guide angles, and the flow guide angles are communicated with the reaction chambers. The reaction chamber is filled with a modified polyurethane biological filler; the precipitation reflux zone comprises an inclined tube precipitation layer and a conical sludge hopper, and the conical sludge hopper is connected with the head end of the anaerobic reaction zone through a gas stripping pipe. The high-concentration organic wastewater treatment device has the advantages of being compact in structure, high in high-concentration organic wastewater treatment efficiency and high in impact resistance.

The invention belongs to the technical field of conveying of excavation equipment, and particularly relates to a forcible clamping breaking scraper conveyor driving device and a scraper conveyor. Comprising a card breaking oil cylinder assembly, the card breaking oil cylinder assembly is connected with a supporting frame of a scraper conveyor driving device, a first limiting part is arranged on a rotating part, synchronously rotating with a chain wheel, of the scraper conveyor driving device, and a second limiting part is arranged at the end, close to the rotating part, of the card breaking oil cylinder assembly. The clamping breaking oil cylinder assembly extends out to enable the chain wheel to be locked when the first limiting part is meshed with the second limiting part, one end of the clamping breaking oil cylinder assembly takes the scraper conveyor as counter-force support, and the other end of the clamping breaking oil cylinder assembly pushes the scraper conveyor driving device to move in the conveying direction through the first limiting part; according to the scraper conveyor provided with the forced clamping breaking driving device, the slack degree of the scraper chain is adjusted through the tensioning oil cylinder, finally, clamping is broken through the clamping breaking oil cylinder in a large probability and high efficiency mode, the hard rock material conveying efficiency of the scraper conveyor can be effectively improved, and finally the related production efficiency of hard rocks is improved.

The utility model relates to the technical field of batteries, and discloses a battery cell, a battery module and a power device. The battery cell comprises a shell, a cover plate and a pole group, the shell comprises an inner cavity with an open end; the cover plate is arranged at the open end of the shell; the pole group is packaged in the inner cavity of the shell by the cover plate; a liquid return capillary piece is arranged on the end surface, close to the cover plate, of the pole group, and is suitable for absorbing the electrolyte and enabling the electrolyte to flow back towards the pole group. According to the battery cell provided by the utility model, the liquid return capillary piece is arranged on the end surface, close to the cover plate, of the pole group, and can absorb the electrolyte and enable the electrolyte to flow back towards the pole group, so that when the battery cell is inverted, the electrolyte flows to and is accumulated at the cover plate under the action of gravity; and the electrolyte can flow back to the pole group upwards through the liquid return capillary piece, so that the pole group is fully infiltrated, and the cycle life of the battery cell is prolonged.

The invention discloses a multipath amplitude phase adjusting device, which comprises supports, PCBs, coupling scribing pieces and clamping devices, and is characterized in that the number of the supports is two, the PCBs are arranged on the wall surfaces of the two supports, and the wall surface of each PCB is provided with a plurality of branch slow-wave microstrip lines which are distributed at intervals; the plurality of branch slow-wave microstrip lines are concentrically arranged around a first shaft, the coupling slip sheet is arranged on the upper wall of the PCB, the coupling slip sheet is provided with a power amplifier network line matched with the microstrip lines, one end of the coupling slip sheet is pivotally mounted on the PCB through the first shaft of the clamping device, and the clamping device is used for driving the coupling slip sheet to swing around the first shaft as the axis. The position of the coupling slip sheet on the branch slow-wave microstrip line is adjusted; and the first shaft is provided with an input line matched with the power amplifier network line. Under the requirement of the same phase adjustment quantity, the branch slow-wave microstrip line and the coupling slip sheet are coaxially arranged. The arc track length required by using the slow-wave microstrip line is shorter than that required by using a common microstrip line or a cable.

The present invention relates to the technical field of hearing aids, and in particular to a hearing aid with a magnetic suction design on a fishing line, comprising a hearing aid body, an ear mold arranged on one side of the hearing aid body, a winding roller arranged at one end of the inner cavity of the hearing aid body, a fishing line wound on the outer side of the winding roller, a suction ball arranged at one end of the fishing line, a magnetic block integrated inside the suction ball, and a locking mechanism, wherein the locking mechanism is arranged at one end of the hearing aid body, the locking mechanism comprises two locking plates, and a number of brake blocks are arranged on the inner wall of the locking plate. In the present invention, by embedding a spherical magnetic block at the end of the fishing line, the problem of the abrupt appearance and the occupation of the internal space of the traditional hearing aid magnetic suction device is solved, the smooth and beautiful appearance of the hearing aid is maintained, and the occupation of the internal space is avoided. At the same time, the spherical magnetic block is arranged at the end of the fishing line, so that when the hearing aid can be fixed on clothing, a backpack or other magnetic objects through magnetic suction, it is ensured that the hearing aid will not fall accidentally.

The present invention provides a self-assembled omnidirectional high-temperature vibration sensor array based on two-dimensional crystal piezoelectric materials, belonging to the field of vibration sensor technology, wherein each unit includes a single crystal silicon substrate; a stress layer formed on the single crystal silicon substrate; a heterojunction formed on the stress layer, the heterojunction including a gate electrode, a dielectric layer, a two-dimensional crystal piezoelectric material layer, a source electrode, a drain electrode and a nano protective layer arranged in sequence; driven by the stress layer, the heterojunction is self-assembled into a curled semicircular three-dimensional structure. A multi-layer (≥3) circular array is performed on the above structure to obtain a three-dimensional self-assembled omnidirectional piezoelectric vibration sensor array structure. The present invention also discloses a method for making a self-assembled omnidirectional high-temperature vibration sensor array based on two-dimensional crystal piezoelectric materials. The miniaturization of the omnidirectional vibration sensor is achieved through monolithic integration, and high sensitivity, wide range and high temperature resistance detection are also achieved.

The embodiment of the present application discloses a kind of multiplexer and communication equipment, the multiplexer includes a transmitting port, at least one receiving port, at least one antenna port, filter set and switch.The fixed end of switch is connected with the first TDD filter in filter set, the first free end of switch is connected with the output end of the second TDD filter in filter set, and the second free end of switch is connected with one of receiving port;Transmitting port is connected with the input end of FDD transmitting filter in filter set and the input end of second TDD filter, and the output end of FDD receiving filter in filter set is connected with one of receiving port;The output end of FDD transmitting filter, the input end of FDD receiving filter and the first TDD filter are respectively connected with one of antenna port.Using the embodiment of the present application can improve port multiplexing rate and reduce circuit area under the premise of ensuring the reliable work of FDD and TDD.

The utility model provides an anti-loosening structure of an SMA connector. The anti-loosening structure comprises an SMA connector assembly, an anti-loosening piece and an anti-loosening piece, a cable assembly; the rotating mechanism is mounted on the surface of the SMA connector assembly; the elastic pressing assembly is installed on the surface of the SMA connector assembly, the locking assembly is installed on the top side of the elastic pressing assembly, and the locking assembly is installed on the surface of the elastic pressing assembly; and the locking plate is fixedly connected to the inner wall of the locking assembly. Under the action of the elastic pressing assembly, the anti-falling fixing effect of the limiting plate on the fixing cylinder is improved, the connection stability of the cable and the SMA connector is enhanced, stable signal transmission is guaranteed, and the connection of the cable and the SMA connector by external force is reduced.