31results about How to "Easy to integrate and assemble" patented technology

The invention belongs to the technical field of microstrip transmission array antennas, specifically a four-beam microstrip transmission array antenna based on a super-surface, and a design method for the four-beam microstrip transmission array antenna. The antenna consists of a horn feed source and a super-surface microstrip transmission array. The horn feed source consists of a waveguide and a horn opening. The distance from the horn opening to the super-surface microstrip transmission array is set as F, and the diameter of the super-surface microstrip transmission array is set as D. The super-surface microstrip transmission array consists of N*N super-surface transmission units. Each super-surface transmission unit consists of three identical composite metal structures and two dielectric plates with the height h, wherein each composite metal structure consists of an I-shaped structure and metal pasters in complete left / right symmetry, and is used for achieving the coupling of two transmission modes in the same plane, thereby reducing the resonant frequency of the unit, and increasing the phase response slope and phase accumulation. The antenna is advantageous in that the antenna is low in side lobe, is high in gain, is balanced in wave beam, is light in weight, is low in cost, and is easy to assemble and integrate.

The present invention relates to a flexible supercapacitor with with NiS-MoS2 heterogeneous nano-sheet array structure based on carbon cloth loading and a preparation method thereof, belonging to thetechnical field of new energy material and device preparation. The flexible supercapacitor grows high-purity, high-density and high-orientation carbon cloth-loaded NiS-MoS2 heterogeneous nanosheet array by using anode material, carbon cloth coated with activated carbon as cathode material, PVA / KOH gel as diaphragm and electrolyte respectively. The anode has the advantages of high purity, high density, tidy appearance, strict controllable growth condition, simple equipment and process, low cost, high capacitance and good charge-discharge stability. The cathode material has excellent conductivity and large double-layer capacitance. The preparation process of the capacitor is simple, economical and environmentally friendly, and no post-treatment is needed. The supercapacitor provided by the invention has the advantages of light weight, large capacity, good cycle charging and discharging stability, and good flexibility, and can be used for power supply equipment of wearable electronic devices.

The invention provides a single-layer microstrip transmission array antenna based on a Huygens meta-surface and a manufacturing method thereof. The single-layer microstrip transmission array antenna is composed of a horn feed source and a Huygens meta-surface microstrip transmission array. The horn feed source is composed of a waveguide and a horn opening. The Huygens meta-surface microstrip transmission array is composed of N*N meta-surface transmission units. Each super-surface transmission unit is composed of two layers of composite metal structures symmetrical about the x-axis and a singlelayer of dielectric plate, wherein the upper layer composite metal structure is composed of two interconnected concentric arcs, and the opening of the concentric arc is upward; the lower layer composite metal structure is symmetrical with the upper layer composite metal structure about the x-axis, and the concentric arc opening of the lower layer composite metal structure is downward; the outer arcs of the upper and lower composite metal structures have an overlapping region. The single-layer microstrip transmission array antenna has the beneficial effects of low sidelobe, high gain, single-layer dielectric plate design, no through hole, low weight, low cost and easy assembling and integration.

A control system for automatically maintaining the horizontal posture of part of a deck of a ship or the work plane of instrument equipment is composed of a four-quadrant horizontal posture sensor, a control device, a servo mechanism and a deck frame. The servo mechanism is formed by hydraulic cylinders or air cylinders and electronic control pressure release valves, and the extending ends of piston rods of the four servo cylinders arranged vertically are connected with the four vertex angles of the frame. The coordinate original point of the four-quadrant horizontal posture sensor coincides with the geometrical center of the deck or a platform, output signals of the four-quadrant horizontal posture sensor represent inclination directions and degrees, and the servo mechanism is controlled through proportional-integral controllers to maintain the horizontal posture of the frame.

The invention discloses a spiral tubular heat exchanger for reducing tube winding. The spiral tubular heat exchanger for reducing tube winding comprises a housing and a spiral tube bundle with two ends mounted on a tube plate in the housing, wherein a tube pass inlet and a tube pass outlet or one or more tube pass inlets and outlets are formed in the housing; the tube pass inlet and outlet are used for distributing and collecting the heat exchange tube through a distributor; the spiral tube bundle is divided into multiple layers of concentric heat exchange tubes for being wound on a core tube; each layer of heat exchange tubes is spirally wound in the same direction; a separating wire is mounted between adjacent two layers of heat exchange tubes, and the winding direction is the same or reverse. Single heat exchange tube is formed by connecting one or more diameter tubes with different lengths; different diameter winding tubes are transited, fixed and connected through patterned plates. The spiral tube type heat exchanger disclosed by the invention can realize efficient heat exchange of different temperature sections under a large temperature span condition, and has the advantages of being compact in structure, high in heat exchange efficiency, beneficial to integrated assembly of heat exchangers in different temperature regions, capable of reducing the size of the heat exchanger, reducing the quantity of heat exchange equipment, and the like.

The invention discloses a single-layer microstrip dual-polarization transmission array antenna and a manufacturing method. The antenna is composed of a horn feed source and a Huygens metasurface microstrip dual-polarization transmission array. The horn feed source is composed of a waveguide and a horn opening, and the Huygens metasurface microstrip dual-polarization transmission array is composedof N * N metasurface transmission units. The metasurface transmission unit is composed of two layers of composite metal structures with biaxial symmetry on an xy plane and a single-layer dielectric plate, and the composite metal structure on the upper layer is formed by opening gaps on four sides of a square metal frame, and the composite metal structure on the lower layer is formed by removing four corners on a square metal frame. The dual-polarization transmission array antenna is manufactured based on a single-layer dielectric plate, through holes do not need to be punched, and the performance of the dual-polarization transmission array antenna meets the beneficial effects of low sidelobe, high gain, high aperture efficiency, enough bandwidth and the like, so that the dual-polarizationtransmission array antenna is easier to manufacture, lower in cost and easier to assemble and integrate under the condition that the same performance of a traditional transmission array antenna is achieved.

The invention relates to a waveguide wave detection unit of a magnetic excitation coupling mechanism, which belongs to the technical field of microwaves, and solves the problems that the existing waveguide coupling wave detector is large in size and heavy in weight and difficult to integrate and requires a special process for treating a waveguide cavity. The power monitoring of a waveguide main mode is realized by adopting a magnetic excitation coupling mechanism to substituting the traditional electric field excitation coupling; a plane probe ring is adopted to substitute a coaxial probe, sothat the thickness of the wave detector can be greatly reduced; and a low-temperature co-fired ceramic (LTCC) integrated molding structure is used for substituting a total-metal encapsulation structure of a discrete device. The waveguide wave detection unit is small in structural size, low in weight, easy to integrate, capable of avoiding special surface treatment for the integrated ceramic structure, and suitable for a miniaturized and high-integration microwave millimeter wave detection circuit and system.

The invention discloses a radio frequency front end with high stability, and belongs to the technical field of radio frequency front ends. The radio frequency front end comprises a multi-layer circuitboard, chips, a vertical transition structure and a dielectric enclosure frame, and realizes the high-stability work of the radio frequency front end under high-frequency and high-integration requirements. The multi-layer circuit board is a multi-layer dielectric plate comprising a radio frequency transmission line layer, a control line layer, a power supply network layer and an isolation groundlayer, and is connected with the chips through solder balls and a heat dissipation substrate to realize electrical and thermal transmission. The chips are a power amplifier, an LNA, a radio frequencyswitch, an amplitude-phase control chip, a power divider chip and the like. The vertical transition structure is a vertical metal connecting hole connected with a strip-shaped transmission line, the dielectric material of the dielectric enclosure frame is the same as that of the multi-layer circuit board, vertical metal grounding holes are formed in the periphery of the dielectric enclosure frame,and the dielectric enclosure frame is prepared on the periphery of a chip cavity to form an isolation boundary with a certain height. According to the invention, the performance and the working stability of the radio frequency front-end module and the application system are effectively improved.

The invention discloses a focal plane infrared detector assembly packaging structure integrated with a multistage thermoelectricity refrigerator. The structure comprises an assembly casing, the multistage thermoelectricity refrigerator, an electrode board, a focal plane module, diaphragms, a getter, a cover board and a window, wherein the pyramid multistage thermoelectricity refrigerator is integrated in an assembly, the casing, the multistage thermoelectricity refrigerator and the electrode board are fixed through filling high heat conduction silver slurry, the focal plane module and the electrode board are fixed through employing low temperature epoxy glue, electric leading out of the focal plane module is realized through a flexible wire, the view field diaphragm and the anti-radiation diaphragm are integrated in the assembly, the view field diaphragm is fixed on the electrode board, the anti-radiation diaphragm is fixed on the middle stage of the pyramid multistage thermoelectricity refrigerator, and laser welding sealing and high vacuum exhaust are carried out after all the parts are assembled. The assembly packaging structure is advantaged in that large-scale focal plane module refrigeration packaging can be realized, the structure is simple, refrigeration temperature is low, and the assembly packaging structure is suitable for packaging of extension wavelength InGaAs and intermediate waves tellurium cadmium focal plane modules.

The invention discloses a preparation method of an energetic film Ni-Cr igniter wire initiating explosive device with high ignition capacity. The energetic film Ni-Cr igniter wire initiating explosive device is obtained by integrating a cuprous azide-loaded energetic film and a Ni-Cr igniter wire initiating explosive device in an assembling mode, and specifically, a copper source is electrochemically deposited on a conductive carbon skeleton, a cuprous azide film is obtained through a liquid-solid azide method, and the cut cuprous azide film and the igniter wire initiating explosive device are integrated and fixed by using an igniter wire initiating explosive device pressing cap. The preparation method of the energetic film Ni-Cr igniter wire initiating explosive device with the high ignition capacity is simple and efficient, the cuprous azide on the energetic film is evenly distributed on carbon fibers, the integrated Ni-Cr igniter wire initiating explosive device can generate high-temperature composite flames in the ignition process through the loaded cuprous azide film, the output energy of the Ni-Cr igniter wire initiating explosive device is improved, the ignition capacity of secondary charge is enhanced, and the electrostatic sensitivity is reduced; and the preparation method of the energetic film Ni-Cr igniter wire initiating explosive device with the high ignition capacity has the characteristics of high output capability and high safety.

The invention provides a one-step single cell separation and distribution system. The system comprises a liquid path plate, a surface acoustic wave chip, a first micro-fluidic chip and a second micro-fluidic chip, wherein driving gas is introduced into the liquid path plate; the first micro-fluidic chip and the surface acoustic wave chip are sequentially attached to the side surface of the liquid path plate; the second micro-fluidic chip is attached to the lower part of the liquid path plate; the surface acoustic wave chip is provided with three stages of sound fields which are used for promoting cells in a sample flow channel of the first micro-fluidic chip to be arranged and gradually screened; an image recognition area is arranged at the tail end of a flow channel of the first micro-fluidic chip and is used for carrying out unmarked image recognition on cells separated from the upstream; after the second micro-fluidic chip receives a single-cell signal of the image recognition area and triggers the single-cell signal, nano-liter liquid drops containing the cells are accurately sprayed out from a nozzle, and after a non-single-cell signal is received and triggered, the second micro-fluidic chip moves to the position above a waste liquid pool for performing spraying out. Cell acoustic separation, image recognition and single cell distribution are integrated, and one-step single cell preparation is realized.

The invention relates to a base structure and a teacher's desk with the same, and belongs to the technical field of teaching equipment. The base structure is used for being fixedly arranged at the bottom of a teacher's desk main body, the base structure comprises a base body and a drawing assembly, a cavity used for containing host equipment is formed in the base body, and the cavity is provided with at least two openings in the base body; and the drawing assembly comprises a bearing frame capable of relatively sliding out of the openings, the bearing frame is suitable for bearing host equipment, the side edge of the bearing frame is provided with a wire harness protection piece synchronously acting along with the bearing frame, and a wire harness of the host equipment is arranged in the wire harness protection piece in a penetrating mode. According to the base structure disclosed by the invention, the cavity is arranged for placing the host equipment, and the drawing assembly is arranged for drawing the host equipment, so that the host equipment can be conveniently integrated in the base structure, the taking and placing actions of the host equipment in the base body are facilitated, and the damage of a wire harness is reduced; and the host equipment can be conveniently taken and placed from different directions through the two openings, so that the host equipment can be conveniently overhauled.

The invention discloses an assembling type steel plate bin integration system. The assembling type steel plate bin integration system comprises a bin body and a heat-insulation layer. The bin body is formed by arranging and assembling a plurality of single steel plate bin bodies. The top of each single steel plate bin body is sealed and flattened and then provided with a feeding inlet and an observation opening. A material distribution belt conveyer and a material distribution cart are laid at the joint of the tops of every two adjacent rows of single steel plate bin bodies, and the feeding end of each material distribution belt conveyer is in butt joint with the discharging end of a lifter arranged on one side of the bin body. A discharging belt conveyer is arranged under the bottom of each row of single steel plate bin bodies, and the outlet end of each discharging belt conveyer is in butt joint with a concentrated transportation belt conveyer. The number and the arrangement mode of the single steel plate bin bodies can be scientifically configured according to the design requirements, and the single steel bin bodies are connected into the bin body through common stand columns and cross beams of bases. The assembling type steel plate bin integration system has the advantages of facilitating mechanical assembling and integration, being small in occupied area and being large in storage volume. Remote and automatic control is facilitated, the material storage quality is improved, and the labor intensity of workers is relieved.

The invention provides a tubular muffler for an automobile. Muffling tubes are connected with a breather pipe through a three-way connector; plugs are arranged at the tail ends of the muffling tubes; and the length of each muffling tube meets the formula: L=(2n-1)c / 4lambda, wherein n is a positive integer of 1, 2, 3..., L is the length of the tube, c is the sound velocity, and lambda is the peak noise wave length. Integrated supports with kidney-shaped holes are arranged on the outer sides of the muffling tubes; the plugs are installed at the tail ends of the muffling tubes through threaded structures; and hexagon socket head grooves are formed in the middles of the plugs. The peak noise of air in the breather pipe is eliminated by using the standing wave resonance principle of sound waves in the channels of muffling tubes; and the two or more muffling tubes are welded to the breather pipe, and therefore, the noise corresponding to two or more peak frequencies can be eliminated. The tubular muffler is simple in structure; the operation of integrating and assembling the tubular muffler with other parts is simple; maintenance is facilitated; the reliability is high; and the noise eliminating effect is remarkable.

The invention discloses a multifunctional metasurface and a stealth antenna. The unit of the metasurface consists of five metal layers in sequence and four layers of dielectric substrates between the metal layers, wherein the first, second, fourth and fifth metal layers are respectively There are two parallel and equal-length rectangular metal patches; the rectangular metal patches of the first and second metal layers have different lengths, and other parameters are the same, and only the patch lengths of the fourth and fifth metal layers are different; The metal patches of the four metal layers are orthogonal to each other; the third metal layer is provided with a C-shaped metal split ring; the metasurface realizes the transmission function when the y-polarized electromagnetic wave is incident in the normal direction, and when the x-polarized electromagnetic wave is incident in the normal direction The beam deflection function is realized, and the radar scattering cross-section reduction function is realized when the y-polarized electromagnetic wave is incident in the reverse direction. The invention can independently realize three functions of high-performance antenna, beam deflection and radar scattering cross-section reduction, can be applied to realize stealth antenna in some specific environments, and has the advantages of small electrical size, high gain and the like.

The invention discloses a preparation method of an energetic film Ni-Cr bridge wire pyrotechnic product with strong ignition capability. The energetic thin film Ni-Cr bridge wire pyrotechnic product is obtained by integrating the energetic film loaded with cuprous azide and the Ni-Cr bridge wire pyrotechnic device by means of assembly, specifically electrochemically Copper source is deposited, and the cuprous azide film is obtained through the liquid-solid azide method, and the cut cuprous azide film and the bridge wire pyrotechnic device are integrated and fixed by using the bridge wire pyrotechnic device pressure cap. The method of the present invention is simple and efficient, and the cuprous azide on the energetic film is evenly distributed on the carbon fiber, and the integrated Ni-Cr bridge wire pyrotechnic product can generate a high-temperature composite flame during the ignition process by supporting the cuprous azide film, thereby improving the It increases the output energy of Ni-Cr bridge wire pyrotechnics, enhances the ignition ability of the secondary charge, reduces the electrostatic sensitivity, and has the characteristics of high output capability and high safety.

The invention provides a power output device, an ice crusher and a refrigerator. According to the power output device, except for the motor and the mounting screws, all the power output device is formed by engineering plastics, the brushless motor is selected as a power source, and the brushless motor drives the gear train to achieve integrated output shaft output. The internal structure is more compact, the thickness of the gearbox shell of the power output device can be effectively compressed to be within 30 mm, the requirements of customers for light and thin products are met, and the space utilization rate of a refrigerator is increased. The brushless motor is high in safety and can meet the IEC explosion-proof test standard, the rotating speed and the rotating direction can be flexibly adjusted through a driving algorithm, the phenomena of ice clamping and rotation blocking are effectively reduced, and the ice crushing effect is optimized. According to the ice crusher, the output shaft integrally formed by engineering plastics is adopted, and the structure of the output shaft can realize power output without assembly and matching, so that faults caused by unreliable assembly among mechanical parts can be effectively avoided, and the use feeling of the ice crusher is improved.

The heterodyne laser interferometer based on the integrated secondary beam splitting component belongs to the field of laser application technology; the invention inputs two spatially separated beams with different frequencies to the heterodyne laser interferometer based on the integrated secondary beam splitting component, wherein the integrated two The sub-beam splitting assembly includes two beam-splitting surfaces perpendicular to each other in space, the two beam-splitting surfaces are coated with polarizing or non-polarizing beam-splitting film, and the travel path lengths of the measuring beam and the reference beam in the integrated secondary beam-splitting assembly are equal. The heterodyne laser interferometer described in the present invention significantly reduces the periodic nonlinear error. Compared with other existing space-separated heterodyne laser interferometers, it also has the advantages of simple structure, good thermal stability, large tolerance angle and easy integration and assembly. Advantages, it meets the high-precision and high-resolution requirements of high-end equipment for laser interferometry.

The invention relates to a gravity penetrating device and method for a seabed sediment pore pressure observation probe rod, which includes a control cabin and an observation probe rod. A pressure-resistant cabin and an assembly cabin are formed in the control cabin. The pressure-resistant cabin fixes the first suspension ring, and The underwater acoustic transducer, pressure sensor and attitude sensor are respectively installed, the mechanical lock driven by the first driving mechanism is installed in the assembly cabin, the first acquisition control system and the first battery pack are installed in the pressure cabin; the observation probe rod It includes a probe body with a pore pressure sensor embedded on the surface. One end of the probe body is provided with a penetrating tip, and the other end is fixed with a data acquisition cabin. The end of the data acquisition cabin far away from the probe body is fixed with a second suspension ring. A data acquisition instrument, a second acquisition control system, and a second battery pack for power supply are installed. The invention is simple and easy to use, has high working efficiency, provides true and reliable observation data for monitoring and early warning of submarine geological disasters and marine engineering construction, and has important practical significance.

The invention relates to an integrated teacher's desk, and belongs to the field of teaching equipment. The teacher's desk comprises a teacher's desk body, a support main body connected to the bottom of the teacher's desk body and a base fixedly connected to the bottom of the support main body. The teacher's desk body is suitable for bearing interaction equipment, a first cavity is formed in the supporting main body, a second cavity communicated with the first cavity is formed in the base, host equipment is borne in the second cavity, and a connecting wire harness of the host equipment penetrates through the first cavity and then is connected to the interaction equipment. According to the integrated teacher's desk, the teacher's desk is divided into the teacher's desk body, the supporting main body and the base, parts can be reasonably and effectively arranged and installed, the overall function partition is clear, the host equipment can be conveniently arranged in the teacher's desk, the occupied space of the host equipment on the teacher's desk body is reduced, and therefore the overall using effect of the teacher's desk is improved.

The invention belongs to the technical field of microstrip transmission array antennas, in particular to a metasurface-based four-beam microstrip transmission array antenna and a design method thereof. The four-beam microstrip transmission array antenna designed by the present invention is composed of a horn feed source and a metasurface microstrip transmission array; wherein, the horn feed source is composed of a waveguide and a horn opening; the distance between the horn opening and the metasurface microstrip array is F , the caliber of the metasurface microstrip array is D*D; the metasurface microstrip array is composed of N*N metasurface transmission units; the metasurface transmission unit consists of 3 layers of identical composite metal structures and 2 The composite metal structure is composed of an I-shaped structure and completely symmetrical metal patches, which are used to form two transmission mode couplings in the same plane, thereby reducing the unit resonance frequency and increasing the phase response slope and phase accumulation. . The advantages of the four-beam microstrip transmission array antenna designed in the present invention are low side lobe, high gain, balanced beam, light weight, low cost and easy assembly and integration.

The invention relates to the technical field of medical instruments, and particularly discloses a drug delivery micropump device which comprises a packaging shell, a driving module, a first driving electrode and a second driving electrode, and the driving module, the first driving electrode and the second driving electrode are installed in the packaging shell; a liquid medicine inlet and a liquid medicine outlet are formed in the two opposite ends of the packaging shell respectively, a plurality of microcavities penetrating through the two side faces of the driving module are formed in the driving module, the liquid medicine inlet is communicated with the liquid medicine outlet through the microcavities, and the first driving electrode and the second driving electrode are arranged on the two side faces of the driving module respectively. The invention provides a drug delivery micropump device based on the basis of the electro-osmosis micro-driving principle, the structure is simple and compact, only two core assemblies including the driving electrode and the driving module are arranged in the device, no mechanical motion friction part is arranged, the pump body can be assembled and integrated in a micro mode in a drug delivery system, the size can be obviously reduced, and the problem that a mechanical pump is prone to faults due to mechanical movement is solved.

The invention relates to a submarine sediment pore pressure observation probe rod gravity type penetration device and method. The submarine sediment pore pressure observation probe rod gravity type penetration device comprises a control cabin and an observation probe rod, a pressure-resistant cabin and an assembling cabin are formed in the control cabin, a first hanging ring is fixed to the pressure-resistant cabin, an underwater acoustic transducer, a pressure sensor and an attitude sensor are correspondingly installed on the pressure-resistant cabin, the assembling cabin is provided with a mechanical lock catch driven by a first driving mechanism, and a first acquisition control system and a first battery pack are arranged in the pressure-resistant cabin; and the observation probe rod comprises a probe rod body with a pore pressure sensor embedded in the surface, one end of the probe rod body is provided with a penetration tip, the other end of the probe rod body is fixedly provided with a data acquisition cabin, one end, away from the probe rod body, of the data acquisition cabin is fixedly provided with a second hanging ring, and the data acquisition cabin is internally provided with a data acquisition instrument, a second acquisition control system and a second battery pack used for supplying power. The submarine sediment pore pressure observation probe rod gravity type penetration device is simple, easy to use and high in working efficiency, provides real and reliable observation data for monitoring and early warning of submarine geological disasters and ocean engineering construction, and has important practical significance.

The invention provides a deep-sea high-power low-vibration motor direct-drive propelling device, which comprises a propeller, the propeller is fixedly connected with a propelling motor through a guide pipe fixing flange cap, a sound insulation cover is installed outside the propelling motor, and a vibration isolation sealing gasket is installed between the sound insulation cover and a flange of the propelling motor. Meanwhile, a first vibration isolation ring and a second vibration isolation ring are arranged between the sound insulation cover and the propulsion motor; the output end of the propelling motor is connected with a rotating shaft through a crowned tooth coupler, a propeller sealing vibration isolation mechanism is installed on the rotating shaft, a propeller is installed on the head of the rotating shaft, and an oil filling quick-change connector is further arranged on the guide pipe fixing flange cap. In the rotating process of the propeller, the sealing problem of a large-diameter shaft penetrating cabin in a deep sea can be solved, vibration of the propeller transmitted to a motor and a bathyscaph shell is reduced, the underwater radiation noise value of the high-power motor and the high-speed rotating propeller is effectively reduced, and the service life of the propeller is prolonged. The support of the large-diameter shaft cabin-penetrating sealing and sound stealth technology is provided for the large bathyscaph.

The invention relates to a waveguide detection unit of a magnetic excitation coupling mechanism in the field of microwave technology, which solves the problems of the existing waveguide coupling detectors, such as large volume and weight, difficulty in integration, special processing of waveguide cavities, and the like. The invention uses a magnetic excitation coupling mechanism to replace the traditional electric field excitation coupling to realize the power monitoring of the main mode of the waveguide; a planar probe ring is used to replace the coaxial probe, which can greatly reduce the thickness of the detector; a low temperature co-fired ceramic (LTCC) is used as an integrated The chemical structure replaces the all-metal packaging structure of discrete devices. The invention has small structural size, low weight, and integrated ceramic structure without special surface treatment and is easy to integrate, and is suitable for miniaturized and highly integrated microwave and millimeter wave detection circuits and systems.

The invention provides a power output device, an ice crusher and a refrigerator. According to the power output device, except for the motor and the mounting screws, all the power output device is formed by engineering plastics, the brushless motor is selected as a power source, and the brushless motor drives the gear train to achieve integrated output shaft output. The internal structure is more compact, the thickness of the gearbox shell of the power output device can be effectively compressed to be within 30 mm, the requirements of customers for light and thin products are met, and the space utilization rate of a refrigerator is increased. The brushless motor is high in safety and can meet the IEC explosion-proof test standard, the rotating speed and the rotating direction can be flexibly adjusted through a driving algorithm, the phenomena of ice clamping and rotation blocking are effectively reduced, and the ice crushing effect is optimized. According to the ice crusher, the output shaft integrally formed by engineering plastics is adopted, and the structure of the output shaft can realize power output without assembly and matching, so that faults caused by unreliable assembly among mechanical parts can be effectively avoided, and the use feeling of the ice crusher is improved.

An ultrasonic suspension gyroscope based on a planar holographic transducer comprises a photoelectric detection device; the photoelectric detection device is vertically mounted in a mounting hole of a magnetic field rotation system; the axis of the photoelectric detection device right faces the sphere center of a spherical hollow rotor; angle signals are obtained by aiming at scribed lines on the spherical hollow rotor through the photoelectric detection device; and the magnetic field rotation system is installed on a cylindrical stator; the spherical hollow rotor floats in liquid in the cylindrical stator, the cylindrical stator is fixedly installed on the upper surface of a sound matching layer, a plane holographic transducer is bonded to the lower surface of the sound matching layer, and a base is installed on the lower surface of the plane holographic transducer. A vortex sound field formed by the plane holographic transducer drives the spherical hollow rotor to rotate at a high speed to achieve the gyroscope effect, the precision of the gyroscope can be greatly improved. The gyroscope has the advantages of being simple in structure, high in stability, easy to integrate and low in cost.

The invention provides a single-tank double-chamber adjustable water tank for a container, the water tank is characterized by comprising a tank body, a first motor arranged at the top of the tank body and a heat insulation plate arranged in the tank body. An output shaft of the first motor is connected with the heat insulation plate to control the heat insulation plate to rotate. The tank body is connected with a container bottom plate through a fixing device. A plurality of water pipe assemblies are arranged on the tank body. A damping device is arranged at the bottom of the tank body. When the heat insulation plate rotates to a first station, the inner space of the tank body is divided into a first cavity and a second cavity, and the first cavity and the second cavity are not communicated. When the heat insulation plate rotates to a second station, the first cavity and the second cavity are communicated. The single-chamber and double-chamber free conversion can be achieved, different water storage requirements are met, it can be guaranteed that the shockproof and damping effects are achieved in the transportation process, the service life of the water tank is prolonged, and the safety performance of the water tank is improved.

The invention discloses a spiral tubular heat exchanger for reducing tube winding. The spiral tubular heat exchanger for reducing tube winding comprises a housing and a spiral tube bundle with two ends mounted on a tube plate in the housing, wherein a tube pass inlet and a tube pass outlet or one or more tube pass inlets and outlets are formed in the housing; the tube pass inlet and outlet are used for distributing and collecting the heat exchange tube through a distributor; the spiral tube bundle is divided into multiple layers of concentric heat exchange tubes for being wound on a core tube; each layer of heat exchange tubes is spirally wound in the same direction; a separating wire is mounted between adjacent two layers of heat exchange tubes, and the winding direction is the same or reverse. Single heat exchange tube is formed by connecting one or more diameter tubes with different lengths; different diameter winding tubes are transited, fixed and connected through patterned plates. The spiral tube type heat exchanger disclosed by the invention can realize efficient heat exchange of different temperature sections under a large temperature span condition, and has the advantages of being compact in structure, high in heat exchange efficiency, beneficial to integrated assembly of heat exchangers in different temperature regions, capable of reducing the size of the heat exchanger, reducing the quantity of heat exchange equipment, and the like.