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51results about How to "Strong drop resistance" patented technology

Piezoelectric ceramic driver for optical focusing and zooming of mobile phone

The invention relates to the field of piezoelectric ceramic drivers, in particular to a piezoelectric ceramic driver for optical focusing and zooming of a mobile phone. The structure of the piezoelectric ceramic driver comprises a disc stator at the center, a piezoelectric ceramic plate stuck to the surface of the stator, and a mobile body in threaded fit with the stator, wherein the piezoelectric ceramic plate is of a thin ring shape, and upper and lower surface electrodes of the ring-shaped ceramic are of fan-shaped quarter shapes; and when electrical signals are introduced to the surfaces of four fan-shaped regions of the piezoelectric ceramic, continuous driving force is formed on the internal thread of the disc stator to propel the mobile body to rotate spirally relative to the stator so as to realize axial linear motion. The manufacturing process is simple and suitable for industrialized production; compared with the prior art, the piezoelectric ceramic driver is easily microminiaturized, the output performance of an executor is more stable, and the piezoelectric ceramic driver has broad application prospect in the fields of optical focusing, precision driving and micro systems. Particularly, the piezoelectric ceramic driver can realize double effects on focusing and zooming in an embedded lens of the mobile phone or a notebook computer.
Owner:TSINGHUA UNIV +1

Processing technology for tempered glass protection screen

The invention relates to a processing technology for a tempered glass protection screen. The processing technology comprises the steps of S1, supplying a tempered glass base plate and a plurality of screen protection films, wherein the screen protection films comprise base materials, and optical cement layers cover the upper surfaces of the base materials, and silica gel layers cover the lower surfaces of the base materials; S2, cutting the tempered glass base plate into a plurality of independent glass substrates, wherein the shape and the size of each glass substrate are matched with those of a display screen of a display terminal; S3, adhering each screen protection film to the lower surface of each glass substrate, wherein the optical cement layer of the screen protection film is adhered to the surface of the glass substrate. The protection screen processed by the method is extremely high in hardness and light transmittance, is high in impact resistance and has extremely good scraping, abrasion and falling resistance effects; furthermore, the definition is high; meanwhile, due to the screen protection films adhered to the surface, tempered glass cannot be broken into small sharp fragments even if being broken, and any injury to a human body and a mobile phone can be avoided.
Owner:胡承朋

Opto-acoustic gas sensing device based on polyvinylidene fluoride piezoelectric film

The invention discloses an opto-acoustic gas sensing device based on a polyvinylidene fluoride piezoelectric film. The opto-acoustic gas sensing device comprises a light source (1) and a tubular acoustic resonant cavity (6) on an optical path (2) of the light source (1), as well as an opto-acoustic gas sensor arranged at the side opening of the tubular acoustic resonant cavity (6) and a modulation-demodulation component adapting to the opto-acoustic gas sensor, particularly, the tubular acoustic resonant cavity (6) is 20 mm-150 mm in length, and 3 mm-10 mm in internal diameter, the side opening of the tubular acoustic resonant cavity (6) is a small hole (4) communicated with the tubular acoustic resonant cavity (6), the small hole (4) is 1.5 mm-2.5 mm in depth and 1.5 mm-2.5 mm in diameter, the opto-acoustic gas sensor is a polyvinylidene fluoride piezoelectric film (5), the distance between the film plane and the end plane of the small hole (4) is 0.1 mm-3 mm, and the output terminal of the opto-acoustic gas sensor is electrically connected with the input terminal of a phase-locked amplifier (8) of the modulation-demodulation component through a pre-amplifier (6). The opto-acoustic gas sensing device has the characteristics of simple structure, larger response band width and stability in operation, and can be widely used for detecting and determining the strength or chemical compositions of gas.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Method for integral injection molding of bottom shell and rubber frame of backlight

The invention discloses a method for integral injection molding of a bottom shell and a rubber frame of a backlight. The method comprises the following steps of: 1, performing punch forming on the bottom shell by using a punch; 2, putting the bottom shell subjected to punch forming in the step 1 into a cavity of a mould of an injection machine for injecting the rubber frame; and 3, injecting a sizing material into the cavity of the mould for injecting the rubber frame, beginning to inject the rubber frame, and making the rubber frame integrally molded with the bottom shell. The method has the advantages that: 1, the bottom shell and the rubber frame of the backlight are subjected to integral injection molding, so the anti-throw capacity and impact resistance of the rubber frame is improved under the support of the bottom shell; 2, the rubber frame and the bottom shell are subjected to integral injection molding, so the rubber frame can be made to be thinner under the support of the bottom shell, materials are saved, and a requirement that the backlight is manufactured to be thinner is met; and 3, the bottom shell and the rubber frame are subjected to integral injection molding, so manpower for assembling the rubber frame on the bottom shell is saved, and the production efficiency is improved.
Owner:深圳市嘉泰宏实业有限公司

Mobile data terminal and positioning method thereof

The invention discloses a mobile data terminal, which comprises a front shell, a rear shell, a processor, a camera and an antenna module, wherein the camera is connected with the processor; the processor is connected with the antenna module; and a plumb line in the phase center of the antenna module is parallel to or coincides with that in the axis of the camera. The invention further discloses a positioning method utilizing the mobile data terminal. The positioning method comprises the steps of: shooting a surface mark point in real time and displaying the surface mark point in a display screen by the camera; receiving a satellite signal to obtain coordinate information of a phase center point of an antenna by the antenna module; and setting the plumb line in the phase center of the antenna module to be parallel to or coincide with that in the axis of the camera so as to obtain correct coordinate information of the point. According to the mobile data terminal manufactured by adopting the technical scheme, the standard camera is utilized, and a professional laser centering device or other auxiliary centering device is not required, so that the cost is reduced; the camera is built in the mobile data terminal and is good in drop resistance, so that the surface mark point can be very visually seen; and the mobile data terminal is convenient to operate.
Owner:上海昊集信息科技有限公司

Printed circuit board, manufacturing method thereof and electronic device

The invention relates to the technical field of communication, in particular to a printed circuit board and a manufacturing method thereof. The printed circuit board comprises a first circuit board enabling a flexibility parameter after etching to serve as a first parameter and a second circuit board enabling a flexibility parameter after etching to serve as a second parameter. The manufacturing method comprises the steps of respectively performing etching on the first circuit board and the second circuit board according to a preset circuit pattern; and enabling the etched first circuit board to be connected with the etched second circuit board. According to the printed circuit board, the manufacturing method of the printed circuit board and an electronic device, the first circuit board and the second circuit board are respectively cut into corresponding shapes according to the preset circuit pattern after undergoing press fit, and the cut first circuit board and the cut second circuit board are connected. Due to the fact that the formed circuit board has a certain elasticity, the anti-breaking capability is high; besides, the formed circuit board can be bent randomly, and diversification of electronic product forms is facilitated. In addition, the cost of the formed circuit board is lower than that of the first circuit board, and device adhesion to two sides can be achieved.
Owner:LENOVO (BEIJING) LTD

Lens drive device

The invention provides a lens drive device which comprises a base, a lens frame, a guide mechanism installed between the base and the lens frame, an anti-rotary mechanism installed between the base and the lens frame and a piezoelectric motor with a motor head installed on the base through a motor seat, wherein the lens frame can slide relative to the base along the optical axis direction of a lens. A friction resisting part is arranged on the lens frame near the motor head, and a pretightening component is arranged between the motor seat and the base and supports against the motor seat, thereby certain pre-tightening force is generated between the motor seat and the friction resisting part. When the piezoelectric motor is excited, the motor head drives the lens frame to move along the optical axis direction of the lens. In the lens drive device, the motor head of the piezoelectric motor directly drives the lens frame, and the stroke and the position of the lens frame cannot influencethe response capability of the lens frame to the vibration of the piezoelectric motor; compared with the prior lens drive device driven by a voice coil motor, the invention has stronger anti-droppingability as well as fast response and location speed, and is convenient to pick up an image; the invention can realize self-locking by making use of the friction, and more saves the electricity.
Owner:JOHNSON ELECTRIC SHENZHEN

Casing of mobile terminal and manufacturing method of casing

The invention provides a casing of a mobile terminal and a manufacturing method of the casing. The casing comprises a frame, a glass screen which covers the front end surface of the frame and a rear cover which covers the rear end surface of the frame, an accommodation space is formed by the frame and the rear cover, the frame is made of amorphous alloy, the intensity of the amorphous alloy frame is greater than 1800MPa, and the rear cover is a ceramic rear cover. Compared with the prior art, the compound mobile-terminal casing of the invention has a beautiful appearance and high anti-falling capability.
Owner:AAC TECH PTE LTD

Ceramic shaver cutter

The invention relates to the technical field of shaver cutters and in particular to a ceramic shaver cutter. The ceramic shaver cutter comprises a circular ring piece, an inner ring blade set, an outer ring blade set and a blade base. The inner ring blade set and the outer ring blade set are each composed of at least one blade. The inner side of the bottom of each blade of the outer ring blade set is connected with the outer ring wall of the circular ring piece. The outer side of the bottom of the each blade of the inner ring blade set is connected with the inner ring wall of the circular ring piece. The inner side of the bottom of each blade of the inner ring blade set is connected with the blade base. The top end of each blade is provided with a blade point and each blade is made of a ceramic material. According to the shaver cutter, the structure is improved, the double-ring blades are reinforced through the circular ring piece, the problem that a shaver is not resistant to impact when a ceramic blade serves as a cutter is solved, meanwhile the traditional double-ring blades are maintained, and industrial production is further facilitated; and by the adoption of a shaver adopting the ceramic cutter, it is tested that the a cutter bit is still free of fragments or cracks when the shaver freely falls off 100 times at the height of 1.5 m.
Owner:GUANGDONG ROMAN TECH CO LTD

A printed circuit board and its manufacturing method and electronic device

The invention relates to the technical field of communication, in particular to a printed circuit board and a manufacturing method thereof. The printed circuit board comprises a first circuit board enabling a flexibility parameter after etching to serve as a first parameter and a second circuit board enabling a flexibility parameter after etching to serve as a second parameter. The manufacturing method comprises the steps of respectively performing etching on the first circuit board and the second circuit board according to a preset circuit pattern; and enabling the etched first circuit board to be connected with the etched second circuit board. According to the printed circuit board, the manufacturing method of the printed circuit board and an electronic device, the first circuit board and the second circuit board are respectively cut into corresponding shapes according to the preset circuit pattern after undergoing press fit, and the cut first circuit board and the cut second circuit board are connected. Due to the fact that the formed circuit board has a certain elasticity, the anti-breaking capability is high; besides, the formed circuit board can be bent randomly, and diversification of electronic product forms is facilitated. In addition, the cost of the formed circuit board is lower than that of the first circuit board, and device adhesion to two sides can be achieved.
Owner:LENOVO (BEIJING) LTD

A ceramic razor blade

The invention relates to the technical field of shaver cutters and in particular to a ceramic shaver cutter. The ceramic shaver cutter comprises a circular ring piece, an inner ring blade set, an outer ring blade set and a blade base. The inner ring blade set and the outer ring blade set are each composed of at least one blade. The inner side of the bottom of each blade of the outer ring blade set is connected with the outer ring wall of the circular ring piece. The outer side of the bottom of the each blade of the inner ring blade set is connected with the inner ring wall of the circular ring piece. The inner side of the bottom of each blade of the inner ring blade set is connected with the blade base. The top end of each blade is provided with a blade point and each blade is made of a ceramic material. According to the shaver cutter, the structure is improved, the double-ring blades are reinforced through the circular ring piece, the problem that a shaver is not resistant to impact when a ceramic blade serves as a cutter is solved, meanwhile the traditional double-ring blades are maintained, and industrial production is further facilitated; and by the adoption of a shaver adopting the ceramic cutter, it is tested that the a cutter bit is still free of fragments or cracks when the shaver freely falls off 100 times at the height of 1.5 m.
Owner:GUANGDONG ROMAN TECH CO LTD

Microphone for communication

The invention discloses a microphone for communication comprising a microphone body. The middle of the outer wall of the bottom end of the microphone body protrudes outwards to form a clamping groove.A threaded hole is formed in the outer wall of one side of the clamping groove; the inner wall of the threaded hole is in threaded connection with a fastening bolt; one end of the fastening bolt extends into the clamping groove. A vertically-arranged connecting column is fixed in the clamping groove through a fastening bolt, a metal universal pipe is welded to the outer wall of the bottom end ofthe connecting column, a supporting base is clamped to the bottom end of the metal universal pipe, and mounting bases with inserting grooves are welded to the four corners of the top end and the fourcorners of the bottom end of the microphone body. Through the arrangement of the rubber rods, when the novel falling-off device falls off to the ground, the rubber rods can be bent to reduce impact force, through protection of the eight rubber rods, the novel falling-off device can prevent the novel falling-off device from being damaged, the protection performance and the falling-off resistance are high, the novel falling-off device can be changed according to needs, and the novel falling-off device is more convenient and faster to use and higher in applicability.
Owner:滑迪

A sealed shell structure of a new energy vehicle charging pile

The invention discloses a sealed housing structure of a new energy automobile charging pile. The sealed housing structure comprises a housing main body and two supporting seats, wherein the supportingseats are connected to the upper and lower ends of the housing main body via buffering racks; each buffering rack has connection plates and a plurality of buffering rods; the connection plates are connected to the upper and lower ends of the buffering rods; each buffering rod is formed by a fixing cylinder and a piston rod; each supporting seat has a fixed disc and silica gel protection pads; thesilica gel protection pads are connected with the fixing disc via buffering springs disposed therein; a heat conduction plate is arranged on the inner wall of the housing main body; a plurality of hollow aluminum plates are evenly disposed in the heat conduction plate and circularly connected with each other; the hollow aluminum plates communicate with the heat conduction plate; sealing pads arearranged between the supporting seats and the housing main body; and the sealing pads are arranged on the inner walls of baffle frames. The whole sealed housing structure has strong sealing property and great anti-drop performance; and great buffering and heat radiation properties and practicality improvement can be obtained.
Owner:ANHUI KECHUANG NEWENERGY TECH CO LTD

Glass bottle with good crack resistance and preparation process thereof

The invention relates to the technical field of glass bottles, and discloses a glass bottle with good crack resistance and a preparation process thereof.The glass bottle comprises a bottle body, an anti-skid groove is formed in the outer wall of the bottle body, a sunken groove is formed in the bottom of the bottle body, a cylinder is arranged in the middle of the sunken groove, the outer wall of the cylinder is sleeved with a rubber sleeve, and a suction cup is arranged at the bottom of the rubber sleeve; a base layer, a heat insulation layer and a corrosion-resistant layer are sequentially arranged in the bottle body from outside to inside. According to the glass bottle with the good anti-cracking performance and the preparation technology thereof, when the glass bottle is placed on a table top, the suction cup can be adsorbed on the table top, the glass bottle is prevented from toppling due to light collision and shaking, the use safety of the glass bottle is improved, the heat insulation layer can effectively improve the heat insulation capacity, and hands are prevented from being scalded due to overheat contained objects; the corrosion-resistant layer can prevent contained objects from corroding the bottle body, the bottle body can be recycled conveniently, energy conservation and environmental protection are facilitated, and the glass bottle has high anti-falling capacity and alkali corrosion resistance.
Owner:江苏晶瑞玻璃有限公司
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