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48results about How to "Insulation damage" patented technology

Miniaturized heat-resistant and high-dynamic pressure sensor

A miniaturized heat-resistant and high-dynamic pressure sensor comprises a sensor probe which is internally provided with a sensor chip, the sensor chip is fixed through a heat-resistant ceramic adhesive, the sensor probe is connected with a metal tungsten filament which passes through a seal plate, and the seal plate is connected with the sensor probe; the front end face of the sensor probe is provided with a pressure guidance hole which communicates with a pressure channel and a square sensor chip in the sensor probe, the rear end of the sensor chip installation groove is provided with a sensor vacuum chamber, and the side wall of the sensor probe is internally provided with a the metal tungsten filament taken as a lead terminal of the pressure sensor; the sensor chip is square-shaped, four sensitive resistors are arranged at the front surface of the sensor chip in the same direction, the back surface of the sensor chip is a square cavity corresponding to a square sensitive film, andthe pressure is applied to the square sensitive film through the pressure guidance hole. The miniaturized heat-resistant and high-dynamic pressure sensor is small in volume, resistant to heat and fast in response, and can be used for measurement of the total pressure and the static pressure.
Owner:XI AN JIAOTONG UNIV

Intelligent temperature control electric soldering station

The invention discloses an intelligent temperature control electric soldering station, which comprises a control station and a handle electrically connected with the control station, wherein a microprocessor and a constant current source are arranged in the control station; the constant current source is controlled by the microprocessor; the handle is provided with a resistance heating wire, a solder horn and a temperature sensor; the resistance heating wire is electrically connected with the constant current source; and the temperature sensor is electrically connected with the microprocessor. The intelligent temperature control electric soldering station is characterized in that the handle is further provided with an tilt sensor which is electrically connected with the microprocessor. According to the intelligent temperature control electric soldering station, the tilt sensor is adopted for providing the service condition of an electric iron handle for the microprocessor, and the electric soldering station is further kept in a welding mode or a standby mode. The intelligent temperature control electric soldering station has a remarkable energy saving effect; and moreover, the service life of the solder horn can be prolonged, and the solder horn is safe and reliable for using.
Owner:SOUTH CHINA UNIV OF TECH

Protective thermal insulation vehicle cover fabric

The invention discloses a protective thermal insulation vehicle cover fabric which comprises a protective fabric layer arranged in the surface layer, a thermal insulation packing layer arranged in the middle layer and a soft fabric layer arranged in the lower layer. The protective fabric layer is woven by warps and wefts mutually, each warp is woven by polyester fiber and jute fiber in a blending mode, each weft is woven by polyamide fiber and spandex fiber in a blending mode, the thermal insulation packing layer is made of soft polyurethane foaming plastic, the soft fabric layer is woven by cotton fiber and woolen fiber in a blending mode, and the lower end of the soft fabric layer is provided with an elastic shrinking ring. The surface of a vehicle cover is woven by the polyester fiber, the jute fiber, the polyamide fiber and the spandex fiber, so that the protective thermal insulation vehicle cover fabric has the weather-proof functions of wind resistance, water resistance, sun protection and the like, the soft polyurethane foaming plastic is used for protecting a vehicle body against sun exposure so that damage to the vehicle body can be avoided, the fabric woven by the cotton fiber and the woolen fiber in the blending mode is soft and smooth, and therefore abrasion damage to the vehicle body is avoided.
Owner:胡明喜

Microencapsulated photochromic powder resistant to weather for long time and preparation method thereof

The invention relates to the field of photochromic materials and particularly provides microencapsulated photochromic powder resistant to weather for a long time. The powder has a polyurethane/melamine resin double-layer microcapsule shell, and the shell is filled with photochromic materials and a stabilizer. By using a neutral system of in-situ polymerization of polyurethane, the alkaline light stabilizer and the photochromic materials are packaged together into a polyurethane microcapsule to form a polyurethane-coated transparent microcapsule. After that, the pH of an emulsion is adjusted tobe acidic, and a melamine resin prepolymer is added to finally obtain the microencapsulated photochromic powder resistant to weather for a long time, so that the weather resistance is improved by five times or above, and the acid resistance is also improved by several times. By using the photochromic powder for preparing clothes printed and dyed by printing slurry, the color change service life is increased by ten times or above, the weather resistance and acid resistance are improved, and meanwhile the original micron-level particle size, excellent dispersibility, amphiphilic solubility withdifferent kinds of slurry and full color rendering performance of the photochromic powder are also maintained.
Owner:TIANJIN UVOS TECH CO LTD +1

Anti-noise intercom earphone

The invention provides an anti-noise intercom earphone, comprising an earphone frame and earphone covers, wherein outer sides of the two earphone covers are respectively provided with a box body, the box body on one side is a wireless communication box body, the top part of the wireless communication box body is provided with an antenna, the box body on the other side is a battery box body, the side wall of the battery box body is provided with a charging interface, a lead is connected between the wireless communication box body and the battery box body, the internal parts of the earphone covers are provided with loudspeakers and are filled with acoustic insulating materials, the earphone covers are connected through the earphone frame, a microphone rod is arranged between the earphone cover and the battery box body, the microphone rod is connected on the side wall of the battery box body in a manner of rotating upwards and downwards, and the tail end of the microphone rod is provided with an anti-noise microphone. The anti-noise intercom earphone has the beneficial effects of isolating noises and optimizing wireless communication quality, and being capable of eliminating the damage of factory noise pollution to the operators and conveying information quickly to improve the working efficiency especially when being applied in industrial production.
Owner:TIANJIN KUNRI TECH DEV

Tracking sensor for solar concentrator plate

The invention discloses a tracking sensor for a solar concentrator plate. The tracking sensor comprises a light-pervious semi-transparent solid bar, a connection tube (3) and a photo-sensitive sensor (4), wherein the light-pervious semi-transparent solid bar is divided into more than two sections, the sections are wrapped and connected through the connection tube (3), and at least a pair of two adjacent sections of the light-pervious semi-transparent solid bar is separated; in the two outermost sections of the light-pervious semi-transparent solid bar, a solar concentration inlet (1) is formed in the top end of one section of the light-pervious semi-transparent solid bar (2), and the other section of the light-pervious semi-transparent solid bar (2) is connected with the photo-sensitive sensor (4). By means of the arrangement of the more than two sections of the light-pervious semi-transparent solid bar, damage of heat conduction to a photo-sensitive component can be effectively isolated. Meanwhile, with the combination of the light-pervious semi-transparent solid bar, effective attenuation is achieved, and light intensity of the photo-sensitive component is achieved. By means of the design, work stability, service life and measurement accuracy of the photo-sensitive sensor are effectively guaranteed.
Owner:NANJING INST OF TECH

Electric vehicle collision-prevention device with warning function

The invention relates to the technical field of electric vehicle accessories, in particular to an electric vehicle collision-prevention device with a warning function. The electric vehicle collision-prevention device comprises a collision-prevention device body and a connecting block, the collision-prevention device body comprises a collision-prevention end and a connecting end, the connecting block is a hollow square block, an obtuse angle is roughly formed between the collision-prevention end and the connecting end, the connecting end horizontally penetrates into the connecting block, the bottom surface of the connecting block is connected with a rear luggage carrier in a rigid mode, the collision-prevention end is roughly in an inverted U type, the upper portion of the collision-prevention end is narrower than the lower portion of the collision-prevention end, the body of the collision-prevention end is of a steel beam structure, and lamp light warning components are arranged on the side face, away from the connecting end, of the collision-prevention end and arranged on the steel beam of the body of the collision-prevention end in a sleeving mode. The lamp light warning components are electrically connected with a lamp switch arranged on the connecting block, and the lamp switch controls on-off of the lamp light warning components. The electric vehicle collision-prevention device has the advantages of achieving high strength, absorbing energy and shocks and having the warning function.
Owner:TIANJIN DUSHIMA BICYCLE

Cementing connection structure of composite material sandwich panel without surface bulges, and preparation method of cementing connection structure

The invention discloses a cementing connection structure of composite material sandwich panel without surface bulges, and a preparation method of the cementing connection structure, belonging to the field of material structures. The structure provided by the invention is in a toothed connection formed by means of coincidence of a glass fiber reinforced panel of a connecting piece A and a glass fiber reinforced panel of a connecting piece B, and the connecting pieces A and B are cementing with each other by using an epoxy composite material adhesive; the length of a foam core material of the connecting piece A is the same as that of the glass fiber reinforced panel, and the length of a foam core material of the connecting piece B is broken at the turning place of the panel fibers of the connecting piece B, so that the coincidence with the connecting piece A is guaranteed during insertion; the foam core materials are stuck by using insulating glue. Compared with the traditional compositematerial sandwich panel cementing method, the composite material sandwich panel cementing method enlarges the cementing area by means of the toothed connection, can effectively guarantee the improvement of the cementing strength, and enables no bulge to exist on the surface after connection, so that the structure is more suitable for practical application; therefore, the structure has a wide application prospect.
Owner:HARBIN ENG UNIV

A long weather-resistant microencapsulated photochromic powder and its preparation method

The invention relates to the field of photochromic materials, and specifically provides a long weather-resistant microencapsulated photochromic powder, which has a polyurethane / melamine resin double-layer microcapsule shell, and the shell is packed with a photochromic material and a stabilizer. Using the neutral system of in-situ polymerization of polyurethane, the alkaline light stabilizer and photochromic material are encapsulated into polyurethane microcapsules to form transparent microcapsules coated with polyurethane. Afterwards, the pH value of the emulsion was adjusted to be acidic, and melamine resin prepolymer was added to finally obtain a long-lasting weather-resistant microencapsulated photochromic powder. The weather resistance was increased by more than five times, and the acid resistance was also increased several times. Using this photochromic powder to prepare clothes printed and dyed with printing paste, the service life of discoloration has been increased by more than ten times. While improving weather resistance and acid resistance, it also maintains the original micron particle size of the toner, excellent dispersibility, and compatibility with the toner. Amphiphilic solubility and full color development of different pastes.
Owner:TIANJIN UVOS TECH CO LTD +1

Discharge generator for simulating turn-to-turn insulation breakdown of transformer winding

The invention discloses a discharge generator for simulating turn-to-turn insulation breakdown of a transformer winding. The discharge generator that can take electricity from a low-voltage winding comprises a support column, an electricity taking device, a conductive device and a conductive magnetism generating device. Compared with an existing discharge generator for simulation, the disclosed discharge generator has the following advantages: a plurality of short-circuit leads do not need to be led out, the insulation performance of a transformer winding cannot be damaged after a long-time test, and after the electricity taking device obtains voltage, the conductive device uninterruptedly conducts the on-off process under the action of the conductive magnetism generating device, so that electric sparks are generated, and the stable discharge effect is achieved.
Owner:BAODING TIANWEI XINYU TECH DEV

A method for repairing the inner wall of a dry-type thin oil-sealed gas cabinet

The invention discloses a method for repairing the inner wall of a dry-type thin oil sealed gas tank, which is characterized in that micron blast furnace titanium slag obtained after crushing, microwave pretreatment, grinding, screening and microwave treatment is used as an additive and uniformly added Into the sealing oil in the piston oil groove of the dry-type thin oil sealed gas cabinet, and use the sealing oil flow between the piston oil groove, the oil film on the inner wall of the gas cabinet and the oil groove at the bottom to make the above-mentioned micron-sized blast furnace titanium slag uniform in the oil film on the inner wall of the gas cabinet The gas distribution and flow can complete the repair of the inner wall of the gas cabinet. The invention uses microwave treatment to reduce the grinding difficulty of blast furnace titanium slag and improve the surface energy and surface activity of blast furnace titanium slag, so as to effectively ensure the preparation cost of micron blast furnace titanium slag and the repair effect on the frictional damage of the inner wall of the gas tank. The restoration method is simple and effective, with low cost and obvious technical and economic advantages.
Owner:CHONGQING TECH & BUSINESS UNIV
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