117 results about "Diaphragm structure" patented technology

The invention discloses a single-action pressure reduction diaphragm type pressure flow amplifier in the field of industrial flow control. The single-action pressure reduction diaphragm type pressure flow amplifier comprises a machine body, a valve core, a flexible diaphragm, an exhaust assembly, a large pressure reduction device and a small pressure reduction device. An adjusting cavity, an air inlet cavity, an air outlet cavity, an air inlet channel and an air outlet channel are formed in the machine body, the air inlet channel is communicated with the air inlet cavity, the air outlet cavity is communicated with the air outlet channel, the valve core is arranged between the air inlet cavity and the air outlet cavity, the valve core is pushed through the flexible diaphragm and the exhaust assembly, and the compressed air flow and pressure intensity between the air inlet cavity and the air outlet cavity can be adjusted; when the pressure intensity of the adjusted air is relatively low, the small pressure reducing device is used for reducing pressure; and when the pressure intensity is high, the large pressure reducing device is used for reducing pressure. The diaphragm structure design is adopted, the flow and the pressure intensity of compressed air are adjusted through reciprocating motion of the flexible diaphragm, the pressure intensity of the adjusted air is reduced through the two pressure reducing devices, and the diaphragm structure can be better suitable for application scenes where the pressure intensity of the adjusted air is high.

Provided is a speaker, including: a diaphragm structure including first and second diaphragms, the first diaphragm is configured to push air to vibrate to generate initial sound wave, and a signal of which is modulated based on a signal within an audible sound frequency band; and a cover plate structure enclosing with the diaphragm structure to form sound-generating cavity, the cover plate structure has a sound outlet hole connecting the sound-generating cavity with outside, the initial sound wave in the sound-generating cavity is transmitted to the outside through the at least one sound outlet hole to form a sound signal, the second diaphragm and the cover plate structure generate an acoustic environmental impedance used to modulate the initial sound wave to change sound pressure of the sound signal. The speaker can modulate and output a sound signal covering the audible sound frequency band based on the acoustic environmental impedance.

The utility model belongs to the technical field of transparent film bags, and discloses a transparent film bag with a diaphragm structure, which comprises a transparent film bag body, the upper parts of the inner walls of the two sides of the transparent film bag body are jointly provided with a pressing and sealing strip, the inner surface of the transparent film bag body is provided with a diaphragm mechanism, and the diaphragm mechanism comprises a contact layer. The membrane mechanism comprises a contact layer, a barrier layer and a protective layer, one side of the contact layer is provided with a transition layer, one side of the transition layer is provided with the barrier layer, one side of the barrier layer is provided with the adhesive layer, and one side of the adhesive layer is provided with the protective layer. Under the action that the blocking layer effectively blocks external factors such as air and moisture and the protection layer protects the internal structure from being damaged, the protection function of the film bag is enhanced, the requirement for all-around protection of articles is met, and the articles are prevented from going bad and being damaged.

The invention discloses a pressure loss analysis method for a total heat exchanger core, and belongs to the technical field of total heat exchangers. The pressure loss analysis method comprises the steps that under the preset air volume, flow field solving is conducted on a flow channel of a total heat exchanger core, and pressure loads on the two sides of a diaphragm are obtained; according to the mapping of the pressure loads on the two sides of the diaphragm to the boundary of the diaphragm structure, the deformation of the diaphragm is obtained; according to the mapping of the deformation amount of the diaphragm to the boundary of the flow channel, the flow field of the flow channel of the total heat exchanger core is solved again, and the pressure loads on the two sides of the diaphragm are updated; and repeating the steps until calculation is converged, and outputting a flow field result to obtain the pressure loss of the total heat exchanger core. According to the invention, the pressure loss in the core body can be accurately calculated.

The invention discloses a voice coil motor-based pulse oscillation lung function instrument, which comprises a rotating bracket, and an IOS gas mixing structure is mounted on the rotating bracket; the pulse oscillation generation module comprises a shell, a motor support is fixedly connected into the shell, a voice coil motor is fixedly connected to the motor support, a motion guide column is installed on the voice coil motor, the voice coil motor is in transmission connection with the motion guide column, the shell is provided with an output port, and a diaphragm structure is fixedly connected to the motion guide column and located at the output port. The output port is communicated with the IOS gas mixing structure, and a sensor module is arranged on the IOS gas mixing structure; and the air tap is mounted on the IOS gas mixing structure. The device is suitable for people who are difficult to complete traditional lung function examination, can detect subtle changes which are difficult to find by a traditional lung function instrument, can distinguish resistance changes of the central airway and the peripheral airway through oscillation signals with different frequencies, and provides richer diagnosis information.

The application discloses a micro-nano acoustic image sensor capable of large-scale integration and a control method thereof. The micro-nano acoustic image sensor comprises a plurality of pixel sensing units arranged in an array; each pixel sensing unit comprises a micro-mechanical ultrasonic transducer located at a top layer, a pixel circuit located at a bottom layer and an inter-electrode metal bonding layer connecting the two; wherein the micro-mechanical ultrasonic transducer is an acoustic-electric conversion unit with an inverted diaphragm structure, and is connected to the pixel circuit through a lower electrode layer; the pixel circuit is an integrated circuit internal unit with a "3T1D" structure, has a peak sound pressure rectification function, and synchronously senses and addresses samples the sound pressure signal of each pixel sensing unit through an inverse correlation double sampling method, and the sampling method has a global shutter function. The application can perform large-scale array integration on the pixel sensing unit, and perform tomographic sampling on the spatial distribution of ultrasonic echoes, and can directly realize dynamic intensity imaging and distance tomographic imaging of a target sound field.

The invention provides a lithium-manganese battery. The lithium-manganese battery comprises a positive pole piece, a negative pole piece, a diaphragm and an electrolyte, a positive active material in the positive pole piece comprises manganese dioxide, and the negative pole piece comprises a lithium metal negative pole; the diaphragm comprises a base film and a functional layer positioned on the side, facing the positive pole piece, of the base film; and the functional layer comprises an inorganic solid electrolyte. According to the lithium-manganese battery disclosed by the invention, the diaphragm structure with the inorganic solid electrolyte functional layer is adopted, so that the conduction rate of lithium ions is improved, and meanwhile, the size change of the diaphragm caused by temperature fluctuation or other factors is also remarkably reduced, so that the surface shrinkage rate of the diaphragm is adjusted; and moreover, the side reaction of the lithium metal negative electrode in the use process is effectively inhibited, and the performance of the lithium-manganese battery is improved.

The utility model provides a vibrating diaphragm, which belongs to the technical field of vibrating diaphragms, and comprises at least one bonding layer, at least one side of each bonding layer is provided with a conductive layer, the connecting surface of the conductive layer and the bonding layer is a roughening treatment surface or a surface activation treatment surface, and the bonding layer and the conductive layer are in hot-pressing composite connection or bonding connection. According to the utility model, the bonding layer and the conductive layer are directly compounded, so that the requirement of bonding strength is met, the process is simplified, the problem of insufficient thickness of a magnetron sputtering coating can be effectively solved, and the negative influence of a glue bonding process on the compliance of the vibrating diaphragm can be avoided; therefore, the light weight of the planar diaphragm structure, the high sensitivity of the performance and the simplification of the manufacturing process are realized.

The invention provides a flywheel diaphragm weight reduction method and device, a medium, a processor and a flywheel diaphragm. The method comprises the steps that a bending moment distribution curve of a crankshaft system in an engine work period is obtained; calculating stress distribution and a fatigue safety coefficient of the flywheel diaphragm under the action of the bending moment of the bending moment distribution curve so as to determine a strength sensitive area of the flywheel diaphragm; the geometric boundary of a fan-shaped lightening hole of the flywheel diaphragm is determined, the two side edges of the fan-shaped lightening hole are aligned with the boundary of the strength sensitive area, and two concentric arcs are determined according to bolt assembly constraint; and checking the strength and torsional vibration characteristics of the flywheel diaphragm adopting the fan-shaped lightening hole structure under the dynamic load, and iteratively optimizing the side angle and the arc radius of the fan-shaped lightening hole until the flywheel diaphragm meets the strength allowance requirement and the torsional vibration response is within the allowable range. The problem that in the prior art, the weight reduction effect of a traditional elastic flywheel diaphragm structure is poor is solved.

The application discloses an ultrahigh-pressure filter press and belongs to the technical field of filter presses. The ultrahigh-pressure filter press comprises a filter press frame, a plurality of filter plates are slidably arranged on the filter press frame, filter cloths are embedded on both sides of each filter plate, a filter chamber can be formed by combining adjacent two filter plates, an accumulator is arranged on each filter plate, each filter plate is further provided with an elastic sealing ring which is in communication with the inside of the accumulator and can store working liquid, and a hydraulic cylinder for pushing the filter plates at the end to compress and combine all the filter plates is further arranged on the filter press frame. The ultrahigh-pressure filter press provided by the application abandons the traditional large-area and easily-damaged diaphragm structure, combines the elastic sealing ring and the accumulator to bear the pressure regulating function, the accumulator is pre-charged with an inert gas with a set pressure, the flow of the working liquid in the elastic sealing ring realizes pressure transmission and energy storage, the long-term stable operation of the equipment under normal and ultrahigh-pressure working conditions is ensured, deep dehydration of slurry is realized, and the sealing pressure requirement of different physical property slurries is met.

The utility model discloses a diaphragm structure and flexible coupling, including diaphragm body, the center hole is provided with at least four positioning holes with the center hole as the center on the diaphragm body circumferentially symmetrical, the diaphragm body has opposite first side and second side, the positioning sleeve that the bolt passes through is fixedly arranged in the positioning hole, the positioning sleeve one end is circular platform structure, the circular platform structure is first boss when on the first side, the circular platform structure is second boss when on the second side, first boss with second boss staggered distribution, and both are along the same circumferential uniform distribution of diaphragm body. Through diaphragm and corresponding shaft sleeve, flange disc between the concentricity alignment except the center hole, realize the secondary concentricity alignment between three in proper order first boss and second boss, and then improve the concentricity of flexible coupling whole.

The invention provides a piezoelectric air pump, a piezoelectric air pump system and an air pump control method, the piezoelectric air pump comprises a double-vibrating-diaphragm structure, the double-vibrating-diaphragm structure comprises a first vibrating diaphragm, a cavity plate and a second vibrating diaphragm, the second vibrating diaphragm is provided with a first vent hole, and the cavity plate is provided with a through hole; the first vibrating diaphragm covers one side of the through hole, and the second vibrating diaphragm covers the other side of the through hole to form a first accommodating cavity; the shell comprises a side wall and a bottom shell provided with a second vent hole, the side wall is enclosed to form a second accommodating cavity, and the double-diaphragm structure is connected with the side wall through a connecting piece and is suspended in the second accommodating cavity; the second vent hole is positioned below the second vibrating diaphragm; the piezoelectric driving part is attached to the surface of the first vibrating diaphragm or / and the surface of the second vibrating diaphragm, and the piezoelectric driving part is used for driving the first vibrating diaphragm and the second vibrating diaphragm to move in opposite directions. According to the piezoelectric air pump, the air pumping efficiency of the piezoelectric air pump can be improved, and the service life of the piezoelectric air pump can be prolonged.

The utility model discloses a novel diaphragm structure of a storage battery, which belongs to the technical field of storage battery diaphragms and comprises a fiber diaphragm, a non-woven fabric layer and a PE (polyethylene) diaphragm layer. The non-woven fabric layer and the PE diaphragm layer are adhered to the two sides of the glass fiber diaphragm. The diaphragm structure is composed of the fiber diaphragm, the non-woven fabric layer and the PE diaphragm layer, and due to the arrangement of the non-woven fabric layer and the PE diaphragm layer, the air permeability and the structural strength of the diaphragm structure are improved, the service life of the diaphragm structure is prolonged, and the using effect of the diaphragm structure is improved. The non-woven fabric layer is formed by coating glue and silicon dioxide powder on the surface of the non-woven fabric, silicon dioxide has high liquid absorption capacity, and the liquid absorption capacity of the whole diaphragm structure is improved. The PE diaphragm layer is formed by coating glue and carbon black powder on the surface of a PE diaphragm; and the carbon black has good conductivity, so that the conductivity of the whole diaphragm structure is improved.

The application discloses a treatment head and a therapeutic instrument. The treatment head comprises a first shell, a second shell, a diaphragm structure, a magnet and a Hall element. The second shell comprises a treatment surface. The diaphragm structure is installed on the treatment surface and is used for being attached to the skin. The magnet is installed on one of the diaphragm structure and the first shell. The Hall element is installed on the other one of the diaphragm structure and the first shell, and the Hall element is spaced apart from the magnet. In the process of movement of the magnet, the magnetic flux changes, for example, the magnetic flux increases when the magnet approaches the Hall element, and the magnetic flux decreases when the magnet moves away. The Hall element is not affected by objective factors such as brightness. This makes the treatment head more accurately detect the movement of the magnet relative to itself, such as detecting whether the magnet has a circumferential deflection or a height change, so as to accurately perceive whether the treatment head slides on the skin, ensure the stable work of the therapeutic instrument, and improve the treatment experience of the user.

The utility model relates to the acoustoelectric technical field, and discloses a loudspeaker module group, the loudspeaker module group comprises a first MEMS loudspeaker and a second MEMS loudspeaker which are located at two sides of a circuit board and are installed in an inverted mode, the first MEMS loudspeaker comprises a first vibrating diaphragm structure, the first vibrating diaphragm structure is electrically connected with a first electrode connection point, and the second MEMS loudspeaker comprises a second electrode connection point. The first vibrating diaphragm structure is controlled by the circuit board and generates vibration; and the second MEMS loudspeaker comprises a second vibrating diaphragm structure, the second vibrating diaphragm structure is electrically connected with the second electrode connection point, and the second vibrating diaphragm structure is controlled by the circuit board and generates vibration.

The utility model relates to the technical field of special-shaped battery, especially a lamination type arc-shaped battery, which comprises a shell and a battery cell assembly arranged in the shell, the battery cell assembly is formed by interlacing a plurality of pole piece structures and a plurality of diaphragms and combined in a lamination mode, the battery cell assembly is provided with an inner layer part and an outer layer part, an encapsulating film is arranged on the inner layer part, an encapsulating part is arranged on the outer periphery of the encapsulating film and folded outwardly to the outer layer part, the encapsulating part is connected to the plurality of diaphragms, and a reinforcing structure is arranged on the encapsulating part, the pole piece structure comprises a positive pole piece and a negative pole piece, and a diaphragm is arranged between the positive pole piece and the negative pole piece and at the end of the pole piece structure away from the inner layer part. The utility model aims to improve the strength of the arc-shaped battery and protect the diaphragm structure of the battery.

The invention discloses a wide-frequency-domain optical fiber vibration sensor, which comprises a sensor shell, and is characterized in that the side wall of the sensor shell is provided with a hole for a sensing optical fiber to penetrate in and out; an optical fiber cushion block and a diaphragm base are arranged in the sensor shell; the corrugated diaphragm is composed of a flat center radius area, a corrugated area and an edge margin area; the marginal margin area of the corrugated diaphragm is fixed on the diaphragm base; the inertial mass block is fixed in a flat center radius area of the corrugated diaphragm; and the sensing optical fiber is provided with a first consolidation point and a second consolidation point, the first consolidation point of the sensing optical fiber is fixed with the optical fiber cushion block in the sensor shell, and the second consolidation point of the sensing optical fiber is fixed with the inertial mass block. According to the invention, the inertial excitation corrugated diaphragm structure drives the sensing optical fiber to vibrate, so that accurate detection of external vibration signals is realized. According to the design, the rigidity characteristic of the inertia excitation corrugated diaphragm is utilized, and effective monitoring of wide-frequency-domain vibration signals is achieved.

The present invention relates to a diaphragm that can prevent deformation of the diaphragm and prevent blockage of the flow path by means of a rib formed in the body of a diaphragm having a diaphragm structure of an oil chamber and a gas chamber in a shock absorber constituting a vehicle suspension system. The invention provides a diaphragm without a parting line, and a diaphragm that can increase the rigidity of the product by forming a rib protruding from the inner circumference of the body to secure the flow path even under pressure on the diaphragm or deformation of the product, forming a groove in the rib, forming a reinforcing rib on one side of the rib, and forming an outer circumference rib on the outer circumference of the body.

The utility model relates to the field of boosters, in particular to an improved clutch booster which comprises a valve body, an air cylinder cover and an air inlet cover, the air cylinder cover is fixedly connected to the valve body, the air inlet cover is fixedly connected to the air cylinder cover, an air inlet channel and an oil inlet channel are arranged in the improved clutch booster, and oil pressure of a clutch master cylinder is combined. According to the clutch boosting device, a rubber diaphragm structure with a complex structure is abandoned, the air cylinder piston is designed through integrated insert die-casting forming, meanwhile, the ejector rod piston and the ejector rod are designed to be of a split structure, errors caused by form and location tolerance can be reduced, and the clutch boosting effect is achieved. The process cost is greatly reduced, and the reliability and the service life of the product are improved.

The utility model provides a diaphragm fixing device for generating explosive waves. The diaphragm fixing device is composed of a movable section, a high-pressure diaphragm, a middle section, a low-pressure diaphragm, a fixed section, a hydraulic cylinder and a guide rod. Cylinder bodies of the four hydraulic cylinders installed in parallel are fixedly connected with the fixed section, and cylinder rods are fixedly connected with the movable section. The high-pressure diaphragm is clamped and fixed with the middle section through the movable section, and the low-pressure diaphragm is clamped and fixed with the fixed section through the middle section; three guide rods mounted in parallel are fixedly connected with the fixed section and penetrate through the middle section and the movable section; the diaphragms are fixed in a movable mode, the difficulty in the diaphragm mounting and dismounting process is reduced, the diaphragm mounting and dismounting efficiency is improved, a double-diaphragm structure is adopted, the pressure difference between the two sides of the diaphragms is reduced by dividing the pressure bearing cavity, the peak pressure and the positive pressure time in the explosion wave test process are prolonged, and the explosion wave test efficiency is improved. And the application range of the explosion wave test is expanded.

The utility model relates to a concrete clapboard structure for reducing T rib steel bridge deck slab-diaphragm plate cross notch stress, which comprises a diaphragm plate and a steel bridge deck slab composed of a cover plate and a T rib, the upper end of the diaphragm plate is provided with a notch for the T rib to stretch in, the diaphragm plate is crossed with the T rib, the T rib continuously penetrates through the notch of the diaphragm plate, and the T rib is arranged in the notch of the diaphragm plate. A high-performance concrete partition plate is arranged between the transverse partition plate and the T rib, the center of the high-performance concrete partition plate in the thickness direction corresponds to the plate thickness center of the transverse partition plate, and toggle pins are arranged in the high-performance concrete partition plate. The structure can effectively reduce the cross notch stress of the T-rib steel bridge deck and the diaphragm plate, and reduce the fatigue problem caused by welding the T-rib steel bridge deck and the diaphragm plate by using steel plates.

The invention belongs to the technical field of energy materials, and particularly relates to a reversible thermal shutdown diaphragm and application. According to the invention, the reversible thermal shutdown diaphragm structure is designed by utilizing the temperature dependence of the rheological behavior of a polymer melt; the reversible thermal shut-off diaphragm is of a three-layer composite structure formed by sequentially stacking a moist-resistant layer, a middle shut-off layer and a moist-friendly layer. The reversible thermal shut-off diaphragm can realize a reversible thermal response function near a polymer melting point of a middle shut-off layer, that is, an ion channel is reversibly closed and recovered in a specific temperature interval, so that thermal runaway is effectively prevented, and the reversible thermal shut-off diaphragm has excellent reversible recovery characteristic. The reversible thermal turn-off diaphragm realizes reversible opening and closing of a pore structure in a specific temperature window by accurately controlling the spatial distribution behavior of a polymer melt in a solid-liquid phase change interval, has rapid reversible thermal turn-off capability, and is suitable for a safety protection system of a high-specific-energy power battery.

The invention discloses an oil bag type electric grease lubrication pump and an energy-saving type motor lubrication system, relates to the technical field of lubrication pumps, and aims to solve the technical problems that a traditional single oil bag or diaphragm structure is prone to fatigue cracking and sealing failure in high-pressure reciprocating motion, and the oil bag type electric grease lubrication pump comprises a pump shell, a hydraulic shell, a driving system and an oil bag mechanism. According to the oil bag mechanism, the modular radial moving assembly and the sealing rubber ring are in elastic linkage design; the linear array arrangement of the oil bag assembly is matched with the anti-fatigue assembly, so that the pressure is dispersed and transmitted among a plurality of modules, and the single-point stress is reduced; according to the flexible connecting structure of the arc-shaped sheets and the folding plates, the arc-shaped sheets and the folding plates can be synchronously gathered to form integral extrusion when the pressure is uniform, and peristaltic self-adaptive conveying is realized through elastic inclination of the sealing rubber rings when the pressure is non-uniform, so that the conveying continuity of lubricating grease of the asynchronous motor is ensured, the anti-fatigue life of the oil bag is remarkably prolonged, and the working condition adaptability of the oil bag is remarkably improved; and early failure caused by local overload of a traditional structure is avoided.

The utility model provides a special-shaped diaphragm structure and a microscopic lighting device. The special-shaped diaphragm structure comprises a first circular ring and a second circular ring, a second circular ring is arranged on the outer ring side of the first circular ring, and the second circular ring and the first circular ring are concentrically arranged; an annular diaphragm is formed in a light-transmitting area between the second circular ring and the first circular ring, a hole-shaped diaphragm is formed in a light-transmitting area on the inner ring side of the first circular ring, and the hole-shaped diaphragm is located on the inner ring side of the annular diaphragm and is concentric with the annular diaphragm. According to the method, the definition of the boundary contour of the low-contrast transparent sample can be greatly enhanced, compared with phase contrast illumination, the illumination intensity loss is small, the energy utilization rate is high, and the rapid imaging requirements of high-speed scanning, automatic focusing and the like of a full-automatic microscope can be basically met.

The invention provides a condenser microphone, a semiconductor device and a manufacturing method thereof, which are applied to the technical field of semiconductors. According to the invention, the trench isolation structure is arranged in the substrate under the diaphragm structure, so that a high-insulation resistor is additionally arranged at the weakest part of the substrate under the diaphragm structure, and a leakage current path possibly generated between the diaphragm structure and the substrate is avoided by utilizing physical isolation; the leakage resistance between the vibrating diaphragm structure and the substrate is further increased, the parasitic capacitance between the vibrating diaphragm structure and the substrate is reduced, and the problems that the leakage resistance between the vibrating diaphragm structure and the substrate is reduced and the signal-to-noise ratio is reduced due to the loss of the isolating layer caused by the fillet first opening formed in the first sacrificial layer are solved.

The utility model discloses a centering and aligning integrated laser particle analyzer, and aims to overcome the defects that an existing laser particle analyzer is not beneficial to miniaturization and is poor in stability. The scheme comprises a centering structure, a diaphragm structure and a light source assembly. The centering structure comprises a displacement sliding table and a detector plate, one side of the displacement sliding table is connected with the detector plate, the other side of the displacement sliding table is connected with a supporting plate, and the supporting plate is connected with a bottom supporting structure through a triangular supporting frame. The diaphragm structure comprises an alignment diaphragm, the alignment diaphragm is connected with one end of a centering alignment module connecting plate through a damping rotating shaft, and the other end of the centering alignment module connecting plate is connected with the supporting plate. The light source assembly is fixed to the bottom supporting structure through the light source fixing assembly. The laser particle analyzer has the beneficial effects that miniaturization, integration and high precision of the laser particle analyzer are realized, connection and gaps among parts are reduced, the overall size and weight are reduced, the laser particle analyzer is convenient to carry and mount, and meanwhile, the stability and the measurement precision of a system are improved.

The invention discloses a composite diaphragm for a lithium ion battery, which is composed of a cellulose acetate layer and two aramid fiber layers to form an aramid fiber layer-cellulose acetate layer-aramid fiber layer diaphragm structure. Meanwhile, the invention provides a corresponding preparation method. The invention provides the composite diaphragm with an aramid fiber layer-cellulose acetate layer-aramid fiber layer structure, the aramid fiber has excellent mechanical strength, high temperature resistance and chemical stability, the aramid fiber is compounded with the cellulose acetate to prepare the composite diaphragm, the aramid fiber can effectively enhance the mechanical property of the cellulose acetate diaphragm, and the cellulose acetate layer can effectively enhance the mechanical property of the cellulose acetate diaphragm. According to the present invention, the composite diaphragm has characteristics of good lyophilic property, thermal stability improving to inhibit shrinkage deformation at high temperature, chemical corrosion resistance improving of the anti-swelling ability of the diaphragm in the electrolyte, and compensation of the performance shortages of the cellulose diaphragm, such that the composite diaphragm has characteristics of high strength, good thermal stability and good chemical stability on the basis of good lyophilic property, and can be used for the lithium ion battery. Therefore, the requirement of a high-performance battery on the comprehensive performance of the diaphragm is met.

The present application provides a flat loudspeaker with a conductive diaphragm and a vertical flat driving diaphragm structure, which comprises a support frame, first and second magnets arranged on the two sides of the support frame and having a moving gap, a vertical flat voice coil which moves up and down by magnetic interaction with the magnets, a conductive diaphragm with its bottom surface connected with the vertical flat voice coil, first and second conductive sheets arranged on the two sides of the diaphragm and electrically connected with the vertical flat voice coil, and a packaging film which packages the vertical flat voice coil and the conductive diaphragm into one and makes the first and second conductive sheets arranged on the flat support frame and makes the diaphragm and the suspension part suspended and arranged in the central opening. By the implementation of the present application, the problems such as wire breakage of the sound source and abnormal sound can be effectively avoided.

The application discloses a double-set-value segmented pressure precision control system, which comprises a ceramic diaphragm structure, full-range continuous acquisition of pressure, speed and fluctuation data, an equal-proportion sensing spring and piston structure, no transmission delay, signal isolation and closed-loop feedback, built-in double-set-value algorithm, three pressure interval division and output of precise instructions, dynamic cancellation of vibration interference, correction of control deviation, synchronous multi-path switch signal, record of operation data and support of historical query. The application realizes double-set-value segmented pressure precision control, improves control precision and action stability, has excellent anti-vibration and weather resistance, is stable in full life cycle operation, and can be widely applied to industrial scene application requirements in multiple fields.

An audio converter includes a diaphragm, a converter base structure, and a diaphragm suspension system. The diaphragm suspension system has at least one contact hinge joint coupling the diaphragm to the transducer base structure to enable rotational movement of the diaphragm about a rotational axis relative to the transducer base structure. A conversion mechanism is operably coupled to the diaphragm to convert between the electrical audio signal and the acoustic pressure. In an embodiment, each contact hinge joint includes up to four contact interfaces, where each contact interface has a pair of contact surfaces movable relative to each other. Other embodiments of diaphragm suspension systems, diaphragm structures, conversion mechanisms, and audio devices incorporating the structures are also disclosed.