83 results about "Horn structure" patented technology

The invention relates to the technical field of farm ventilation, and provides a farm ventilation system which comprises a mounting pipe, one end of the mounting pipe is detachably connected with a connecting pipe, and a plurality of air inlets are formed in one end of the connecting pipe in an annular array mode; two sealing plates are fixedly connected to an inner cavity of the mounting pipe, a plurality of thin pipes are jointly embedded in inner cavities of the two sealing plates in an annular array mode, a plurality of annular fins are distributed and fixedly connected to the surface of each thin pipe at intervals, a spiral flow guide rib is fixedly connected to an inner cavity of each thin pipe, and transition pipes are fixedly connected to the two ends of each thin pipe. The transition pipe is of a trumpet-shaped structure; by means of the technical scheme, the technical problems that in the prior art, ventilation equipment mostly adopts a single air suction and exhaust structure, only simple replacement of air inside and outside a farm can be achieved, and a targeted temperature adjusting function is lacked are solved.

The invention relates to an integral ox horn electrode and a processing and using method thereof, and the integral ox horn electrode comprises a first reference frame which is used for positioning the Z-axis position of the ox horn electrode; the ox horn structure is fixedly connected with the first reference frame and is used for forming a glue inlet of a workpiece; the arc-shaped inner side of the ox horn structure is provided with an extension structure, a positioning hole is formed in the extension structure, an ejector pin is fixed in the positioning hole, and the ejector pin is perpendicular to the ox horn electrode and used for positioning the X-axis position and the Y-axis position of the ox horn electrode. A thimble is fixed in the positioning hole, is vertical to the ox horn electrode and is used for positioning the X-axis position and the Y-axis position of the ox horn electrode, positioning the Z-axis position of the ox horn electrode by using a first reference frame and disassembling the electrode into an integral ox horn electrode machined by a three-axis machine tool, so that the problems that the wire disassembling problem of a half ox horn electrode is adopted, the appearance of a product is influenced, the copper material is relatively small, the machining progress is quick and the production cost is low are solved. And the cost is low.

The utility model discloses a rapid rotary disc material receiving machine which comprises a machine frame, a rotary disc and a plurality of material receiving rings, and the machine frame is provided with a feeding hopper which is located above the material receiving rings and can be aligned with the material receiving rings in an up-and-down mode. A connecting piece is arranged between the material receiving ring and the rotating disc, the upper end of the connecting piece is connected with the material receiving ring, the lower end of the connecting piece is installed on the rotating disc through a detachable installation structure, the connecting piece is of a horn structure which is gradually expanded from top to bottom, and a photoelectric detection switch which can be lifted up and down to adjust the installation height is installed on the machine frame. The detection end of the photoelectric detection switch is located at the output end of the feeding hopper and can be within the range of the receiving ring, corresponding to the feeding hopper, of the rotating disc, a positioning proximity switch is installed on the portion, located outside the rotating disc, of the rack, and an induction rod matched with the positioning proximity switch in an induction mode is installed on the portion, located between the two connecting pieces, of the rotating disc. Compared with the prior art, the material receiving bag is not prone to inclining and falling down, and the material receiving bag is not prone to sliding down; and a photoelectric detection switch is arranged, so that the materials are not easy to fall on the ground.

The invention relates to the technical field of ultrasonic waves, and discloses a directive horn structure, at least two directive plates are rotatably connected with an external connection structure, the directive plates are arranged side by side, each directive plate comprises a sound wave part, the sound wave parts are arranged on the sides, away from the external connection structure, of the directive plates, and the sound wave parts are suitable for emitting ultrasonic waves; the sound wave direction is suitable for being perpendicular to the plane of the side, away from the external connecting structure, of the pointing plate, and ultrasonic waves emitted by the sound wave parts of every two adjacent pointing plates form double-slit interference; and the direction adjusting plate is simultaneously connected with the at least two pointing plates and is suitable for synchronously driving the at least two pointing plates to rotate relative to the external connecting structure. Through a double-slit interference ultrasonic structure, directional regulation and control of sound waves are achieved, at least two pointing plates arranged side by side are adopted to form an interference array, a sound wave part configured on each pointing plate can emit ultrasonic waves perpendicular to the plate surface, and it is ensured that adjacent sound wave sources form a stable double-slit interference field.

The utility model discloses a vibrating reed integrated bone conduction horn structure, which comprises a bracket, a vibrating reed, a voice coil, a PCB (Printed Circuit Board), an iron basin, a magnet and a washer, the support and the vibrating reed are both made of plastic materials, the support and the vibrating reed are integrally formed in an injection molding mode, the support is provided with a concave cavity with an opening in the upper end, the vibrating reed is located at the lower section position of the concave cavity, the PCB, the voice coil, the washer, the magnet and the iron basin are sequentially arranged on the concave cavity from top to bottom, and the lower end of the iron basin makes contact with the vibrating reed; thus, the vibrating reed and the support are integrally formed in an injection molding mode, extra manufacturing of the vibrating reed is omitted, firmness of the whole structure of the product is improved, assembling is convenient, meanwhile, the weakness that F0 adjacent frequency signals are seriously distorted due to the fact that a traditional metal elastic piece material is hard is avoided, audio signal current can drive the vibrator to make sound more easily, and the sound quality is improved. And the vibration operation is more stable, the sound conduction is clearer, the usability is good, and the application range is wide.

The utility model provides a loudspeaker structure based on vibration sound transmission, which relates to the technical field of electroacoustic conversion devices, and comprises an upper cover assembly, a voice coil assembly, a magnetic circuit assembly and a lower cover assembly, and the surface of the upper cover assembly is provided with a heat dissipation hole I, a positioning hole and a fixing hole. According to the utility model, the magnetic circuit assembly and the voice coil assembly which are modularly designed are matched, an innovative structure that the voice coil is fixed and the magnetic circuit is movable is adopted, an electric signal is directly converted into mechanical vibration to be conducted to a human body, effective conversion from a sound signal to somatosensory vibration is realized, and the limitation that a traditional loudspeaker can only transmit sound waves through air is overcome; the heat dissipation holes and the ventilation grooves arranged in the upper and lower cover assemblies form convection heat dissipation channels, the heat conduction performance of the metal heat dissipation fins is matched, the heat dissipation problem during working of the vibration horn is effectively solved, long-time stable operation of equipment is guaranteed, meanwhile, the elastic supporting structure of the elastic pieces is utilized, vibration loss is reduced, and vibration conduction efficiency is improved.

The invention discloses a vehicle-mounted miniaturized directional strong sound device based on a double-membrane transducer, and the device employs the rear-mounted direct-drive layout of the double-membrane transducer, enables sound waves to directly enter a horn structure, avoids the path loss and energy attenuation caused by the multiple reflection of the sound waves in a conventional reflective structure, and remarkably improves the electroacoustic conversion efficiency. Under the same input power, higher sound pressure level output can be realized, through the synergistic effect of the three-section horn structure with the gradually changing section and the built-in phase cone, the form and the propagation phase of a sound wave wavefront are effectively controlled, sound energy is gradually converged in the propagation process, the sound beam diffusion angle is greatly compressed, the directivity and the propagation distance of sound are enhanced, and the sound quality is improved. In addition, by means of precise integration of the acoustic cavity and vertical installation of the circuit board, high-density layout is achieved in a limited space, and the device is suitable for a vehicle-mounted environment, supports multi-device cascading and matrix deployment, is easy and convenient to install and maintain and has outstanding engineering practicability and reliability.

The utility model relates to the technical field of vehicle horns, in particular to a vehicle air horn structure which comprises a base and a rotating shaft, the inner wall of the base is rotationally connected with the rotating shaft through a bearing, the upper end of the rotating shaft is fixedly connected with a shell, a dust cover moving mechanism is arranged in the shell, and the inner wall of the shell is fixedly connected with an air box. Through cooperation of the shell and the dust cover moving mechanism, the motor drives the cam to rotate, the cam drives the connecting plate to move on the shell, meanwhile, the connecting plate slides on the sliding rod, the spring enables the connecting plate to be always attached to the cam, the connecting plate drives the dust cover to move, and after the dust cover moves away from the surface of the horn opening, vibration sound of the reed is transmitted out of the horn opening. By means of the mode, the dust cover can be moved away when the horn is used, sound transmission is prevented from being blocked, and the using effect of the air horn structure is improved.

A high-frequency bass T iron transmission structure coaxial loudspeaker comprises a high pitch unit which is driven by an inner magnetic neodymium iron boron magnetic circuit; a column center hole of the bass T iron is processed into a horn structure extending axially, and the geometric contour of the horn structure is an exponential curve and is used for guiding sound waves; the high-pitch pipe plug is made of an ABS plastic material and is coaxially nested and connected with the horn structure of the low-pitch T iron to form a continuous sound wave transmission channel; the short circuit ring is made of a high-conductivity copper material, is embedded in the magnetic gap of the bass magnetic circuit and is used for inhibiting harmonic distortion of the magnetic field; the coaxial loudspeaker box is novel in structure and more suitable for a loudspeaker box product for listening in small space and close distance, the high pitch unit and the low pitch unit of the loudspeaker are designed to be coaxial, so that the high pitch and the low pitch of a sounding point make sound on the same axis, the tone is more natural and smooth, the high pitch installation position of the loudspeaker box body is removed, and the size can be correspondingly designed to be small and compact.

The invention provides an antenna unit, an antenna array and security inspection equipment for millimeter wave security inspection imaging. The antenna unit is provided with a radiation end. The antenna unit includes: a horn antenna upper portion provided with a first slot thereby forming a first horn structure; the SIW-based ultra-wideband Vivaldi antenna part is arranged below the horn antenna upper part and is provided with a tapered line radiation structure, and the tapered line radiation structure is positioned below the first horn structure; the horn antenna lower part is located below the SIW-based ultra-wideband Vivaldi antenna part and is provided with a second groove and a plurality of metalized through holes formed in the two sides of the second groove; the bonding layer is positioned between the ultra wide band Vivaldi antenna part based on the SIW and the lower part of the horn antenna; and the base is positioned below the lower part of the horn antenna. The antenna unit is an end-fire antenna capable of limiting the transmission direction of millimeter waves.

The application discloses a dual-mode dual-circularly polarized antenna array, which comprises a dual-mode feed network and a radiation network stacked in order from bottom to top, the dual-mode feed network is used for transmitting electromagnetic waves in the form of TE10 mode and TEM mode input thereto to the radiation network, and the radiation network is used for radiating electromagnetic waves transmitted by the dual-mode feed network to free space, the dual-mode feed network is a hybrid feed network based on a hollow waveguide structure and an SISL structure, and the radiation network is a hybrid radiation network based on a partition structure and a stepped horn structure; the dual-mode dual-circularly polarized antenna array has the advantages of low profile, low sidelobe, simple structure and capability of being applied to a high-gain scene.

The utility model relates to the technical field of automobile horns, in particular to an automobile horn structure which comprises a supporting seat, a horn body and a buffering assembly, the horn body is installed on the supporting seat through the buffering assembly, the buffering assembly comprises a first hinged support, a hydraulic rod, a second hinged support, an installation cylinder frame, a spring and a fixing component, the first hinged support is fixedly installed in the supporting seat, and the second hinged support is fixedly installed in the supporting seat. One end of the hydraulic rod is rotationally connected with the first hinged support, the other end of the hydraulic rod is rotationally connected with the second hinged support, the mounting cylinder frame is fixedly connected with the second hinged support and located in the supporting base, the horn body is detachably mounted on the mounting cylinder frame, the spring sleeves the outer side of the hydraulic rod, and the fixing component is connected to the mounting cylinder frame and the horn body. The problems that when an automobile runs, vibration and impact generated by bumpy road surfaces can be transmitted to the horn, but the horn in the prior art is not provided with a buffering structure, so that connecting parts of all parts of the horn are prone to loosening, abrasion of the parts is aggravated, and the service life of the horn is shortened are solved.

The application provides a phototherapy device for treating brain-related diseases. The phototherapy device comprises a gas supply assembly, a head-wearing assembly and a first horn structure. The gas supply assembly comprises at least a gas supply pipe group. The head-wearing assembly comprises a shell and a light-emitting piece, the shell has a gas cavity in fluid communication with the gas supply pipe group, the gas supply pipe group is used for providing gas to the gas cavity, and the gas in the gas cavity is used for blowing to the head. The first horn structure is arranged at the gas outlet of the gas supply pipe group, and is used for diffusing the gas into the gas cavity via the first horn structure. The opening size of the first horn structure increases along the flow direction of the gas, and the cross-sectional area of the opening of the first horn structure is smaller than the cross-sectional area of the gas cavity. The phototherapy device can reduce the noise generated when the high-speed fluid transmitted from the gas supply pipe group enters the gas cavity with a relatively large cross-sectional area by arranging the first horn structure.

The utility model discloses a horn structure of a sound box, which can reduce the interference of mid-bass energy on high pitch energy and improve the high pitch quality of a ceiling sound box. The horn structure of the sound box comprises a metal basin frame, a magnetic circuit system, a supporting seat and a high-pitch horn, the magnetic circuit system is installed at the bottom of the metal basin frame, and a convex shaft coaxial with the metal basin frame is arranged on the face, facing the metal basin frame, of the magnetic circuit system. The end part of the inner side of the supporting seat is coaxially connected with the end surface of the convex shaft; the high-pitch horn comprises a high-pitch mounting seat, a high-pitch voice coil and a high-pitch loudspeaker; the inner side end part of the high pitch mounting seat is coaxially connected with the outer side end part of the supporting seat; the high-pitch voice coil is mounted in the high-pitch mounting seat; the tweeter comprises an annular connecting part and an annular baffle plate which is integrally connected to the outer side end part of the annular connecting part and outwards diffuses and extends along the radial direction of the tweeter, the annular connecting part and the tweeter mounting seat are coaxially arranged, and the annular connecting part is detachably connected with the outer side end part of the tweeter mounting seat.

The invention discloses a miniaturized low-sidelobe substrate integrated waveguide horn antenna and wireless communication equipment, the miniaturized low-sidelobe substrate integrated waveguide horn antenna comprises an upper dielectric substrate, a middle dielectric substrate, a lower dielectric substrate, a substrate integrated waveguide back cavity structure and a substrate integrated waveguide H-plane horn, the middle dielectric substrate extends towards the front end of a horn aperture for a certain distance, and the upper dielectric substrate and the lower dielectric substrate are loaded at the position of the horn aperture; a first metal column array and a second metal column array are loaded in the upper-layer dielectric substrate and the lower-layer dielectric substrate; the length of the flaring part of the horn is shortened by about 50%; a pair of triangular air slots is cut in the horn structure, right trapezoid dielectric chamfers are cut at the tail ends of the three layers of dielectric substrates, and the horn structure adopts an E-surface corrugated wall to realize conical electric field amplitude distribution and uniform electric field phase distribution at the aperture position so as to realize the low sidelobe characteristic of-30dB; third and fourth metal column arrays are loaded in the upper and lower dielectric substrates, the edge metal columns cover the rectangular metal strips, and fifth and sixth metal column arrays are loaded at the tail ends of the upper and lower dielectric substrates. According to the invention, miniaturization and low sidelobe performance are realized at the same time.

A horn speaker with a rotatable horn, comprising a speaker body, a longitudinal support, and a horn with a long-shaped opening on the front. The horn is connected to the speaker body by an audio signal, and the horn is horizontally arranged on the longitudinal support and rotatably connected to the longitudinal support through a rotating mechanism. Due to the rotatable horn structure adopted in the present invention, by rotating the horn to adjust the use angle of the long-shaped opening, it is possible to change the sound field to obtain a personal favorite sound field feeling, and at the same time, it is possible to change the floor space occupied by the horn speaker to suit the use in audio or video rooms of different areas. For example, for an audio or video room with a small area, the horn can be adjusted to a vertical form, thus greatly reducing the horizontal floor space occupied by the horn speaker. Moreover, by adjusting the use angle of the horn, the beauty and appearance of the horn speaker can also be changed, providing more personalized choices for users. The present invention has a novel design, is safe and reliable in use, easy to operate, and can also be disassembled and transported by elevator.

The present invention discloses a dual-drive sound generating structure, a dual-functional earphone and a control method thereof. A dual-drive sound generating structure includes an oscillator structure for bone conduction sound and a speaker structure for air conduction sound; it further includes a magnetic conduction connecting member disposed between the oscillator structure and the speaker structure; the magnetic conduction connecting member is provided with an oscillator-side cavity for embedding the oscillator structure and a speaker-side cavity for embedding the speaker structure. The present invention adopts a magnetic conduction connecting member to combine the oscillator structure and the speaker structure to form an integral structure, making the structure simple and having an overall sense. In addition, the oscillator structure and the speaker structure are placed back to back, and when in use, each outputs audio in opposite directions without interference. In addition, a connection groove is formed by the oscillator inner cover and the speaker outer shell, which is easy to install and convenient for maintenance. The dual-functional earphone of the present invention is provided with a sound guiding hole on the side of the speaker outer shell close to the ear hole, which can realize the sound path conversion of the speaker sound to be directed towards the ear hole, and it is easier to realize the speaker sound reaching the ear hole.

The utility model provides a cavel structure of a dune buggy, which comprises a cavel body, a front suspension upper connecting part, a front suspension lower connecting part, a steering rod connecting part and a brake component connecting part, and each connecting part and the cavel body are integrally formed, so that the assembly efficiency is increased, and the whole structure has higher strength and stability and is convenient to assemble and disassemble. Therefore, the vehicle has high stability in the running process.

A connecting flange of a rear bowl penetrates through a screw from the lower end face and is connected with the bottom of a large barrel in a locking mode through the outer side edge of a ventilation barrel, an inner hole of the ventilation barrel is downwards connected with a phase plug in a pressing mode, a voice diaphragm is arranged below the phase plug, and a supporting ring on the periphery of the phase plug is connected with the horizontal edge of the voice diaphragm in a pressing mode and supported on a gasket. The gasket is pressed on the polar plate, the polar plate is supported on the step structure of the U iron through the magnetic steel, a circle of multiple connecting holes are formed in the ventilation cylinder around the circumference, the connecting holes are downwards connected with screws in a penetrating mode, the screws sequentially penetrate through the gasket, the polar plate, the magnetic steel and the step structure to be locked and connected with the U iron, and the voice coil of the voice diaphragm is arranged between the polar plate and the outer wall of the central column structure of the U iron. The loudspeaker is compact in structure, and can effectively meet the use requirements of volume, broadband and light weight.

The present invention provides a high-isolation antenna applied to millimeter-wave multi-channel short-distance communication. The high-isolation antenna applied to millimeter-wave multi-channel short-distance communication includes an antenna body and an absorbing layer; the antenna body is provided with a plurality of horn structure cavities and accommodating cavities, the accommodating cavities correspond to the horn structure cavities one by one, each horn structure cavity corresponds to a transmission channel, the horn structure cavity includes an opening part, an extending part and a connecting part, the accommodating cavity is arranged at the bottom of the horn structure cavity and communicates with the connecting part of the horn structure cavity, and a patch probe is arranged in the accommodating cavity; the absorbing layer is provided with an opening at the top, the opening corresponds to the horn structure cavity one by one, and the opening communicates with the opening part. This solution solves the problem of the short transmission distance of traditional non-contact connectors, and at the same time makes up for the blank of non-contact connectors in multi-channel communication, providing a way for the realization of millimeter-wave non-contact connectors.

The utility model discloses a telescopic magnetic power bank which comprises a bottom shell, a telescopic piece connected to the bottom shell and a wireless charging platform connected to the telescopic piece, and the bottom shell and the wireless charging platform are connected through the telescopic piece. The bottom shell and the wireless charging platform are arranged at intervals according to the length of the telescopic piece, the diameters of the two ends of the telescopic piece are different, and the telescopic piece is of a horn structure. The beneficial effects of the utility model are that through the bottom shell and the wireless charging platform and the cooperation of the telescopic member between the bottom shell and the wireless charging platform, during the use process, a user can clamp fingers outside the telescopic member, so that the whole structure can be dragged for use, more labor is saved, the wireless charging platform is convenient to take and use, and due to the material and shape design of the telescopic member, the use is more convenient. And after the wireless charging platform is not used, the wireless charging platform can be pressed to enable the telescopic piece to contract, and the length of the telescopic piece is shortened, so that the overall structure occupies less space and is convenient to place and store.

The utility model relates to the field of sound box equipment, in particular to a sound waveguide horn structure component in a sound box, which comprises a body part and a phase plug group. A first mounting part and a second mounting part which are of hollow structures are symmetrically arranged on two sides of the body part; the phase plug group comprises a plurality of phase plug units which are arranged on the first installation part and the second installation part at equal intervals, and the phase plug units are used for installing alto loudspeakers. A plurality of phase plug units are arranged, each phase plug unit is correspondingly provided with an alto horn, and sound waves radiated by the alto horns in all directions are collected and compressed, so that the purposes of improving the sound compression ratio, correcting the sound transmission path, improving the sensitivity, effectively expanding the frequency response range of the horns and optimizing the frequency response phase characteristics are achieved; and the sound image positioning is more accurate. The problems of audio distortion and sound quality damage caused by the fact that sound guiding phases of a sound box provided with a plurality of alto loudspeakers are inconsistent and sound waves in the sound box are reflected back to the loudspeakers are solved.

The utility model relates to the technical field of thin-type horns, in particular to a thin-type horn structure, which comprises a basin frame, a vibrating diaphragm and a dustproof cap covering the top of the vibrating diaphragm, the periphery of the vibrating diaphragm is annularly attached to the top of the basin frame, a first boss annularly protrudes from the bottom of the dustproof cap, and a second boss annularly protrudes from the top of the vibrating diaphragm. The first boss and the second boss are concentrically arranged and buckled with each other, so that the dustproof cap can be quickly positioned and installed at the top of the vibrating diaphragm, the dustproof cap and the vibrating diaphragm are kept concentric after installation, and harmonic distortion caused by vibrating diaphragm deformation due to uneven stress when the vibrating diaphragm vibrates caused by eccentricity of the dustproof cap is avoided. And the assembly efficiency between the dustproof cap and the vibrating diaphragm can be improved.

The utility model provides a horn structure of an outdoor water quality detector, which relates to the technical field of water quality detection and comprises a protective box body, a safety door is arranged on the front side of the protective box body close to the edge of one side, a bent frame is arranged on the front side of the protective box body, and a top cover is fixed on the top of the protective box body. The loudspeaker body is installed on the base plate, the front side of the base plate is bent upwards, and meanwhile the front side of the base plate is attached to the inner wall of the front side of the top cover, so that rainwater flows downwards from the top cover, and the loudspeaker body can be prevented from falling off when the rainwater flows downwards from the top cover. When the loudspeaker body is installed, the cushion block is arranged at the bottom of the loudspeaker body, so that the bottom of the loudspeaker body can be prevented from being in direct contact with the top of the base plate, and the design mode does not make contact with the loudspeaker body even if follow-up water flows into the top of the base plate.

A horn antenna for emitting an electromagnetic HPEM microwave pulse along a central axis contains a microwave generator for the pulse having a waveguide along the central axis with a generator opening for the pulse, and a horn structure for shaping the pulse with an input opening and an emission opening for the pulse. The generator contains at least one HPEM source for the pulse. Each HPEM source contains at least two antennas for pulse components, disposed in succession in parallel with the central axis. The pulse is formed as a sum of the pulse components. A method for reconstructing a horn antenna to form the horn antenna with increased power, includes constructively increasing a number of antennas toward a respective HPEM source and orienting remaining antennas in a row relative to the first antenna, increasing the waveguide length, and keeping other dimensions of the horn antenna unchanged.

The utility model discloses a sound box horn structure and a sound box using the same, the sound box horn structure comprises a horn upper cover and a horn lower cover, the horn lower cover is provided with two grooves, and the two grooves are in mirror symmetry with a Y-axis direction as a symmetry axis; the width of the groove is gradually increased in the sound wave conveying direction. The groove comprises a first arc-shaped surface, a second arc-shaped surface and a vertical surface which are connected in sequence; the vertical surface is close to the middle of the horn lower cover, and the first arc-shaped surface is close to the outer side of the horn lower cover; the first arc-shaped surface is bent outwards, and the second arc-shaped surface is bent downwards; the horn upper cover detachably covers the top of the horn lower cover, and the horn upper cover is matched with the first arc-shaped surface, the second arc-shaped surface and the vertical surface to form a sound wave channel. The sound box horn structure is formed by combining the horn upper cover and the horn lower cover, and sound waves are effectively transmitted outwards from the loudspeaker unit through the two sound wave channels, so that the sound transmission is more stable, the directivity of the sound waves is enhanced, the sound waves are transmitted more accurately, and the intermediate frequency efficiency of the sound box is improved.

The application provides a double-cavity double-structure double-vibration-membrane high-frequency horn structure and relates to the field of acoustic devices. The double-cavity double-structure double-vibration-membrane high-frequency horn structure comprises a frame, a U cup, a first magnetic circuit assembly, a second magnetic circuit assembly, a first voice coil, a second voice coil, a first vibration membrane and a second vibration membrane. The U cup is arranged in the inner cavity of the frame, the U cup comprises a base plate part and a ring part which are connected to each other, the base plate part and the ring part enclose a front cavity, the first magnetic circuit assembly is arranged in the middle part of the front cavity, the second magnetic circuit assembly is arranged at the side part of the front cavity, the first voice coil is arranged between the first magnetic circuit assembly and the second magnetic circuit assembly, the first vibration membrane is connected to the first voice coil, the first voice coil is suspended in the front cavity, and the U cup is provided with a ring-shaped slot hole. The high-frequency horn structure has high electric energy and sound energy conversion efficiency, and has high overall output and power.

The utility model relates to a radio frequency coaxial load structure, and provides an adjustable high-precision equal-phase load structure in order to solve the problem that the existing radio frequency coaxial load is inconsistent in electrical length, and the adjustable high-precision equal-phase load structure comprises an outer shell, an insulating medium, an inner conductor, a load resistance tuning assembly and a rear cover, the rear end of the inner conductor extension section is provided with a blind hole, and an elastic body is arranged in the inner conductor extension section; the load resistor tuning assembly comprises a tuning bushing and a load resistor, the tuning bushing is of a horn structure, an elastic clamping seat is arranged on a through hole in the small end of the tuning bushing, the front end of the load resistor penetrates through the blind hole and then is connected with the inner conductor through an elastic body, and the rear end of the load resistor penetrates through the through hole in the small end of the tuning bushing and is connected with the elastic clamping seat; a tuning external thread is arranged on the circumferential face of the outer side of the tuning lining, a tuning internal thread matched with the tuning external thread is arranged on the inner wall of the outer shell, and the phase relation among the load resistor, the elastic body and the outer shell can be adjusted through the elastic clamping base.

The invention provides a miniaturized ultra-wideband high-gain double-sided thick convex lens loaded horn antenna, which is used for solving the problem that an existing horn antenna cannot meet the use requirements of a miniaturized ultra-wideband high-gain system. Comprising a rectangular waveguide structure, a double-ridge horn structure and a double-faced thick convex lens which are connected in sequence, and the double-faced thick convex lens is a symmetrical convex lens; the focal length F0 of the double-sided thick convex lens is F0, the radius R of a sphere forming the double-sided thick convex lens is R, the wavelength is corresponding to the minimum working frequency, and A and B are respectively a focal length control parameter and a sphere radius control parameter which are obtained by simulating the propagation process of electromagnetic waves in a medium. By simulating the propagation process of electromagnetic waves in a medium, the optimal focal length and sphere radius parameters are obtained to design the thickness of the double-sided thick convex lens, so that the double-sided thick convex lens can control the phase more accurately, and higher gain, higher efficiency and lower sidelobe are realized; and impedance matching is improved by using a thickness effect, so that a wider working bandwidth is obtained.

The utility model relates to the technical field of ultrasonic waves, and discloses a directive horn structure, at least two directive plates are rotatably connected with an external connection structure, the directive plates are arranged side by side, each directive plate comprises a sound wave part, the sound wave part is arranged on one side, far away from the external connection structure, of the directive plate, and the sound wave part is suitable for emitting ultrasonic waves. The sound wave direction is suitable for being perpendicular to the plane of the side, away from the external connecting structure, of the pointing plate, and ultrasonic waves emitted by the sound wave parts of every two adjacent pointing plates form double-slit interference; and the direction adjusting plate is simultaneously connected with the at least two pointing plates and is suitable for synchronously driving the at least two pointing plates to rotate relative to the external connecting structure. Through a double-slit interference ultrasonic structure, directional regulation and control of sound waves are achieved, at least two pointing plates arranged side by side are adopted to form an interference array, a sound wave part configured on each pointing plate can emit ultrasonic waves perpendicular to the plate surface, and it is ensured that adjacent sound wave sources form a stable double-slit interference field.