181 results about "Diaphragm structure" patented technology

The invention relates to the technical field of battery detection, in particular to a battery multi-physical-quantity performance test and intelligent diagnosis method, system and device and a storage medium, and the method comprises the steps: building a virtual battery model containing an electrode, electrolyte and diaphragm structure, and marking initial mechanical strength parameters; synchronously acquiring real-time current and surface infrared thermal imaging temperature data of a real battery; inputting the current data into the virtual model to execute electrochemical and thermal coupling simulation, and comparing differences to locate a physical abnormal area; disassembling an abnormal area, measuring structural characteristic parameters of the material, recording space coordinates, and extracting electrochemical state variables at corresponding positions of the virtual model through space calibration; and establishing a mapping relationship between the material structure parameters and the electrochemical variables, outputting a dominant failure mechanism, and updating the failure criterion of the virtual model. Abnormality is accurately positioned by combining infrared thermal imaging and simulation difference analysis, multiple physical quantities are fused to reveal correlation between structural degradation and performance attenuation, and data are dynamically updated to improve diagnosis reliability.

The invention discloses a lithium ion battery electrolyte, a preparation method and application. The lithium ion battery electrolyte comprises a lithium salt and an organic solvent, wherein the lithium salt comprises a combination of at least two of lithium hexafluorophosphate, lithium difluoro bis (oxalato) phosphate, lithium bis (fluorosulfonyl) imide and lithium bis (oxalato) borate, and the organic solvent comprises 30 wt%-50 wt% of hydrofluoroether, 10 wt%-30 wt% of acetate and 20 wt%-60 wt% of carbonate. The lithium ion battery electrolyte provided by the invention can keep the diaphragm structure complete, realizes filling of pores with lithium salt, and reduces the permeability of the diaphragm, thereby controlling possible shrinkage of the diaphragm in a temperature change process under a low-temperature or high-temperature condition; the crosstalk problem caused by gas penetration between the positive electrode and the negative electrode is inhibited, and the battery prepared by utilizing the lithium ion battery electrolyte provided by the invention has good cycle performance and rate capability under a low-temperature condition and has relatively high safety under a high-temperature condition.

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.

The invention relates to the technical field of hydrogen energy storage and transportation, and discloses a hydrogen storage system convenient for hydrogen charging and discharging regulation, comprising: a gas input module comprising a gas discharging column unit, a buffer tank and a connecting unit, the gas discharging column unit being connected with a tube bundle vehicle by using a ferrule type quick joint, a compression module comprising a first hydrogen compressor unit and a second hydrogen compressor unit, the second hydrogen compressor unit adopts a water-cooling diaphragm structure, the hydrogen storage module comprises a first hydrogen storage bottle group unit and a second hydrogen storage bottle group unit, and the second hydrogen storage bottle group unit is divided into three-stage storage, a gas distribution and control module, a safety guarantee module, a monitoring module and an auxiliary module. Through a gas discharging column double-path parallel interface of the gas input module and the temperature compensation type pressure gauge, and in combination with a check valve and a rupture disk of the buffer tank, the damage of high-pressure impact to equipment is avoided, so that the equipment is prevented from being damaged by the high-pressure impact, and the service life of the equipment is further prolonged.

The invention discloses a diaphragm and a battery pack comprising the diaphragm. The diaphragm structure comprises a first piece, a second piece and a third piece which are sequentially connected along a first direction and are provided with corresponding side wings on two sides before being folded, at least two positioning holes are arranged on four corresponding side wings of the first piece and the third piece, the at least two positioning holes are respectively arranged on two opposite sides of the second direction of the pole group after being folded, and structures such as crease lines are further arranged. According to the structure, the membrane can be matched with the positioning needle of the coating workbench, the pole group is accurately coated, and deviation and poor insulation are avoided. Parameters such as the diameter, the distance and the width of an overlapping area of the positioning holes are reasonably designed, and the structural strength, the insulating property and the film coating quality of the film are guaranteed. According to the battery pack adopting the diaphragm, the safety, the consistency and the production efficiency are remarkably improved, the cell assembly size deviation is reduced, the internal short circuit risk is reduced, the cycle life is prolonged, the diaphragm is suitable for various scenes, and the market competitiveness is enhanced.

The utility model belongs to the technical field of batteries, and particularly discloses an aqueous zinc ion battery which comprises a shell and a battery cell arranged in the shell, the battery cell comprises a positive electrode structure, a negative electrode structure, a diaphragm structure and ZnCl2 / ZnSO4 composite electrolyte, the diaphragm structure is arranged between the positive electrode structure and the negative electrode structure, and the ZnCl2 / ZnSO4 composite electrolyte is arranged in the shell. And the ZnCl2 / ZnSO4 composite electrolyte is poured between the positive electrode structure and the negative electrode structure. According to the aqueous zinc ion battery provided by the utility model, the positive electrode structure consists of the positive electrode current collector and the positive electrode active material layer, the positive electrode active material layer is in close contact with the positive electrode current collector, and the connecting bulge serves as a connecting framework of the positive electrode current collector and the positive electrode active material layer, so that active materials can be effectively prevented from falling off from the positive electrode current collector, and the stability of the positive electrode structure is improved; the negative electrode structure is composed of the conductive polymer coating and the negative electrode active material layer, the conductive polymer coating is beneficial to uniform deposition of zinc ions, and formation of zinc dendrites can be effectively reduced.

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 invention relates to the technical field of batteries, in particular to a diaphragm structure, a battery, a battery pack, a battery pack and electric equipment. The diaphragm structure comprises a diaphragm, wherein an accommodating space is formed in the diaphragm; and the thermal response material is arranged in the accommodating space, and the thermal response material is suitable for being melted when the heated temperature reaches a preset value and covers the inner surface of the diaphragm. When the diaphragm structure is subjected to thermal runaway, the thermal response material is damaged or melted by heating and is attached to the surface of the diaphragm, so that the risk of thermal runaway is reduced, the safety performance of the diaphragm is improved, the risk of overheating of the battery is reduced, and the safety performance of the battery is improved.

The utility model relates to a membrane structure and a water purification device, and relates to the technical field of water purification treatment. The diaphragm structure comprises a diaphragm group and at least one separator, the diaphragm group comprises at least two layers of diaphragm bodies, the at least two layers of diaphragm bodies are sequentially stacked, and the front surfaces of the two adjacent layers of diaphragm bodies are oppositely arranged to form a water inlet runner; the membrane body is provided with a first side and a second side which are oppositely arranged in a first direction, the first side is provided with a raw water inlet communicated with the water inlet flow channel, and the second side is provided with a concentrated water outlet communicated with the water inlet flow channel; at least one separator is arranged in the water inlet flow channel, and the separator is configured to be capable of separating the water inlet flow channel so as to improve the flow speed of fluid in the water inlet flow channel. According to the technical scheme disclosed by the utility model, the membrane surface concentration polarization layer phenomenon can be weakened, the anti-pollution capability of the membrane structure is improved, and the service life of the membrane structure is prolonged.

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 utility model provides a sodium-supplementing battery diaphragm structure and a sodium ion battery. The battery diaphragm structure comprises a base membrane, and a sodium-supplementing layer, a catalyst layer and a conductive layer which are sequentially laminated on the surface of any side of the base membrane. Through the specific design of the battery diaphragm structure, efficient and stable sodium compensation can be realized on the premise of not increasing additional process burden, so that the cycle life of the battery is prolonged, and the overall performance of the battery is improved.

The diaphragm structure comprises a base membrane layer, ceramic layers, a first bonding layer and a second bonding layer, and the ceramic layers are coated on the two side surfaces of the base membrane layer; the surface, far away from the base film layer, of the ceramic layer is coated with a first bonding layer; the base film layer, the ceramic layer and the first bonding layer are equal in width; the edges of the two sides of the face, away from the ceramic layer, of the first bonding layer are coated with second bonding layers in the length direction of the base film layer. The edge of the first bonding layer is coated with the second bonding layer, so that the bonding capacity of the edge of the diaphragm can be effectively improved, the diaphragm and a pole piece can be highly attached in the hot pressing process of the core package, the polarization internal resistance of the lithium ion battery in circulation is reduced, and the purple edge phenomenon of the pole piece is relieved.

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 present invention discloses a high-temperature resistant circular jump diaphragm structure, a processing method, a molding device and a method of use, and relates to the field of aviation power distribution technology. The technical solution of the present application includes a diaphragm structure in which the middle is arched to one side to form a spherical cap structure, the spherical cap structure is surrounded by a support plane, an annular transition structure is formed between the spherical cap structure and the support plane, and the spherical cap structure and the transition structure form an action area; wherein, the thickness of the diaphragm structure is h, the arch height of the spherical cap structure is H, the outer diameter of the support plane is D, the width of the transition structure is R, and the diameter of the action area is d. The present invention designs the diaphragm structure and material selection from the source, and then obtains the molding device profile through mold placement technology. At the same time, a complete and systematic diaphragm processing method is designed to obtain a diaphragm with high surface accuracy, stable structure and small temperature drift. The present invention corrects the technical bias from mold to diaphragm molding.

The invention relates to a micromechanical pressure sensor (100), comprising a substrate (110) having a layer system (120) arranged thereon. The micromechanical pressure sensor (100) further comprises a sensor structure (200) fixed to the layer system (120) in a self-supporting manner by means of at least one suspension structure (140), the sensor structure has a first membrane structure (210), a second membrane structure (220) and a cavity region (240) which is arranged between the two membrane structures (210, 220) and which is closed by a side wall (230) extending in an edge region (212, 222) of the two membrane structures (210, 220). In this case, the sensor structure (200) comprises an effective capacitor (250), which is arranged in the cavity region (240) between the two diaphragm structures (210, 220), the active capacitor has a first electrode (251) fixed to the first membrane structure (210) and a second electrode (253) arranged between the first electrode (251) and the second membrane structure (220) and fixed to the second membrane structure (220).

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 invention provides a small self-cleaning double-sealing condensation valve and relates to the technical field of condensation valves, the small self-cleaning double-sealing condensation valve comprises a first screw, diaphragms on the two sides of a valve rod are of corrugated pipe type diaphragm structures, the action stroke of the diaphragms is large, the diaphragms can be stretched to be filled into a whole cavity in the action process, and no loss is caused to the total flow; the edge of the diaphragm is embedded in the valve body, a guide gland is arranged on the diaphragm for threaded rotary press fit, loosening and water leakage are not prone to occurring, and a valve port is sealed; metal hard sealing and rubber sealing are combined (in the operation process, the metal position of a valve port can crush large silt and stone blocks, rubber sealing is conducted after the crushed silt and stone blocks are washed away by water flow, after rubber sealing, the valve body assembly continues to be pressed downwards, finally, metal sealing is completed, and the self-cleaning function is achieved. A nut gasket and a nut are arranged on the diaphragm and are in threaded close fit with the valve rod, and the inner diameter of the diaphragm is in close fit with the outer diameter of the valve rod; and water is below the diaphragm and does not pass through the middle part of the valve rod and the guide gland, namely the valve rod and the guide gland.

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 invention discloses a filter pressing device and method for rare earth dehydration, and belongs to the technical field of rare earth filter pressing. The filter pressing device comprises a supporting rack, a mounting rack, a filter pressing mechanism and an alternate filtering mechanism; the filter pressing mechanism comprises a filter pressing plate, a filter pressing frame, a hydraulic module, an asymmetric diaphragm structure and a fixed end plate; the asymmetric diaphragm structure for secondarily extruding a filter cake is mounted on the filter pressing plate; a plate frame moving and supporting mechanism is mounted on the mounting rack; a conveying pipeline for conveying slurry into the filter pressing frame is fixedly mounted on the mounting rack; the alternate filtering mechanism comprises an elastic guide structure, a movable support structure, a filter screen replacement structure, a movable driving structure, an alternate circulating filter screen and a scraping structure; the movable driving structure is used for driving the filter screen replacing structure; and a filter screen cleaning mechanism for cleaning the alternate circulating filter screen is mounted on the rear side of the supporting rack. Through the mode, filter pressing and filter screen cleaning can be synchronously carried out, the efficiency is effectively improved, and a filter cake is prevented from being in contact with cleaning liquid.

The invention discloses a nested array piezoelectric MEMS loudspeaker, which is formed by arranging, nesting and combining a plurality of piezoelectric MEMS loudspeaker units together, a unit vibrating diaphragm is composed of a central vibrating diaphragm and extended rectangular vibrating diaphragms, the four edges of the central vibrating diaphragm are respectively provided with one extended rectangular vibrating diaphragm, the outer edges of the extended rectangular vibrating diaphragms are connected with a supporting base, and the supporting base is connected with the piezoelectric MEMS loudspeaker units. The actuator units are mutually nested and arranged through partially extending diaphragm structures, and in order to avoid crosstalk, the actuator units are mutually isolated through supporting substrates and air gaps. The array actuator has the beneficial effects that the actuator unit adopts a cross-shaped vibrating diaphragm design, so that the effective vibration area and out-of-plane displacement are improved, and the sound pressure level output of each part of array actuator unit under the fixed substrate size is improved; by modulating the difference of excitation signal phases of each part of array units under different voltages and different frequencies and coordinating with the vibration synthesis design realized by combining the array units, the programmable application requirements of the enhanced hearing aid can be met.

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.