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59results about How to "High product quality and reliability" patented technology

A delayed ignition control device and an electronic detonator

The invention relates to a delayed ignition device, especially a delayed ignition control device and an electronic detonator for timing initiation. For the problems of the prior art, a delayed ignition control device and an electronic detonator are provided; upon reaching the timing initiation time of the electronic detonator, an energy-storage capacitor can discharge electricity to a detonating fuse head by matching a processor and a switching tube; the component improves the use security of the electronic detonator; meanwhile, in order to prevent the electrostatic influence produced by putting the device into an electronic detonator, an electrostatic protection structure is formed on an electronic detonator cap wire bonding pad accessory in front of a current-limiting resistor. The device comprises a cap wire M and a cap wire N, and comprises an electrostatic protection device, an electronic delay module, an energy-storage device, and a detonating fuse head which are integrated on a printed board. The electrostatic protection device is configured to release static electricity input at any two of the cap wire M, the cap wire N and a detonator shell. The electrostatic protection structure is formed on the cap wire input end bonding pad. The electronic delay module is in both-way communication with an exploder via the cap wire M and the cap wire N.
Owner:WUXI SHENGJING ELECTRONICS TECH CO LTD

Composite linear temperature digital quantity and analog quantity sensing detector in two-chip structure

The composite linear temperature sensing detector consists of one temperature sensing cable, one microcomputerized modulator and three terminal resistors connected together to form one closed circuit signal acquiring circuit. It features the structure of the temperature sensing cable comprising two stranded elastic metal conductor wires, including one covered with one insulating layer of 40-180 deg.c Vicat softening point and one outer metal foil or other conducting material layer serving as common pole, and the other covered with one semiconductor layer and one outer insulating layer of 40-180 deg.c Vicat softening point. These two wires are stranded in the pitch of 20-200 mm and covered with extruded plastic shield layer. The composite linear temperature sensing detector has high temperature sensing sensitivity, no dependence on the length, high reliability and low cost.
Owner:SHENYANG P T SECURITY TECH

Large-scale seven-shaft linkage numerical control laying and winding integrated forming equipment

The invention belongs to the field of machine design and manufacturing-high grade numerical control machine tool and basic manufacturing equipment, and relates to large-scale seven-shaft linkage numerical control laying and winding integrated forming equipment. A main machine which is formed by three linear shafts and one rotating working table rotating shaft, and a laying and winding head which is driven by three rotating shafts are adopted to composite three translation movement and four rotation movement to achieve laying and winding head spatial motion track control and workpiece rotation.A conveying belt u shaft is adopted to drive winding and rewinding of a cloth belt and speed adjustment to achieve eight-shaft control seven-shaft linkage laying, and therefore automatic forming of acomposite material skin structure with all kinds of spacial special-shaped hook surfaces is achieved. The spatial motion track of the laying winding head can be directly controlled, even a workpiecewith the special-shaped hook surface can be accurately attached to the surface of the laying winding head for laying and winding, and therefore forming operation of material cutting after solidifyingand forming can be reduced and even avoided. Pollution is reduced, the cost is saved, and efficiency is improved. The automatic tow placing technology provides an equipment platform suitable for engineering application research and manufacture.
Owner:HUAZHONG UNIV OF SCI & TECH +4

Composite lattice structure and preparation method

ActiveCN107599445AIncrease productivitySuitable for large-scale production of composite lattice structuresLayered productsFiberShell molding
The invention provides a composite lattice structure and a preparation method. The composite lattice structure is composed of an upper face plate, a lower face plate and a lattice core arranged between the upper face plate and the lower face plate. The lattice core is formed in the manner that lattice core triangular fibers and trapezoidal fibers are interlaced. Foam interlayers are arranged in the upper face plate and the lower face plate. A specific injection manner is applied to the composite lattice structure for VARTM formation. The preparation method of the composite lattice structure comprises the seven steps of (1) preparing a fusible alloy mold core; (2) inserting the triangular fibers; (3) laying fibers on the bottom layers of the upper face plate and the lower face plate; (4) inserting the trapezoidal fibers; (5) arranging the face plate interlayers and laying surface fibers of the face plates; (6) conducting VARTM (vacuum assisted resin transfer molding) formation; (7) heating and melting the fusible alloy mold core. The composite lattice structure and the preparation method effectively solve the connection problem between a composite lattice core and the face plates, integrated formation is achieved, the quality is reliable, the technology is simple, and the node strength is high.
Owner:HARBIN ENG UNIV

Recoverable cable type linear temperature-sensing detector

ActiveCN101078654AAchieve reuseThe alarm temperature is not limited by the length of useThermometers using electric/magnetic elementsUsing electrical meansElectrical conductorBand shape
The invention relates to a recovery cable linear temperature detector. As two ends of temperature cable are connected with microcomputer modulator and terminal resistance R respectively a closed signal collection circuit is formed. It is characterized in that the structure of temperature cable is that an elastic metal conductor is covered by melting NTC characteristic material layer with vicat softening point in 40deg.C-180deg.C; anther is an elastic metal conductor; after a hole belt or net insulation obstructing layer is set between two line cores they are twisted or winded; finally they are covered by outer sleeve layer in plastic protrusion together. Multiple starting resistance values for alarming temperature signals heated on one meter of temperature cable are set in memory of microcomputer modulator, which inspects resistance change of melting NTC characteristic material layer between conductors. When circumstance temperature makes melting NTC characteristic layer soften, elastic metal conduct and melting NTC characteristic material layer forms short circuit so that output of alarming signal of given temperature is realized. When short circuit and open circuit happen between two conductors by not fire factor, failure signals of short circuit and open circuit are outputted by microcomputer modulator. It is provided with simple process, high productivity and low producing cost.
Owner:SHENYANG P T SECURITY TECH

Double temperature alarming irrecoverable type line type temperature-sensing detector

The wire-type non-restored two-temperature-alarming heat-sensing detector realizes two-grade fixed-temperature alarming and outputting of short-circuit break-circuit fault and the cut-off fault of a micro-computer modulator. Two ends of a heat-sensing cable are connected respectively with the micro-computer modulator and a terminal resistor to form a closed-circuit signal collection circuit. It is characterized in that the structure of the cable is three elastic metal conductors in which one is coated with an insulation material layer whose Vicat softening point is between 40-180 degree C, which can also be coated with or no aluminium-plastic or copper-plastic composite band or metal foil or conductive material layer, the other is coated with an insulation layer whose Vicat softening point is between 40-180 degree C and coated again with aluminium-plastic or copper-plastic composite band or metal foil or conductive material layer. The two conductor wires with same coatings or different coatings are twisted or wound together with a third conductor wire coated with a semi-conductor material layer and an external jacket is extruded on at same. The twisting or winding pitch of the three wires is optimized between 20mm-200mm.
Owner:张陈

Switch quantity composite reparable cable-type line-type heat fire detector

A switch amount resumable cable linetype temperature-sensing fire detector is provided, which can realize switch amount fixed temperature alarming, resumable temperature-sensing multi-stage alarming, short circuit fault alarming, circuit broken fault alarming, and electric signal processing device fault outputting. Two ends of a temperature-sensing cable are respectively connected with a microcomputer modulator and terminal resistors R1, R2 to form a closed-circuit signal collecting circuit, the fire detector is characterized in that, the structure of the temperature-sensing cable is configurated that, two elastic metal conductors are respectively coated with an insulative material layer, one of the elastic metal conductor coated with an insulative material layer is coated with an conductive layer which is an incontinuous conductive aluminium-plastic composite strip or copper plastic composite strip or metal foil; another metal wire is coated with a thermo-sensitive material layer with a critical temperature CTR; the three wire cores with coated layers are twisted together, wherein, the two elastic metal conductors with coated layers are twisted in a backtwist way, the metal wire with the coat layer is twisted with the two elastic metal conductors with coated layers in a filling way and then to extrusion-mold an oversheath layer.
Owner:张陈

Bonding method for preventing injection molding deformation of long-span bonding lead of integrated circuit

PendingCN112687648ASolve the problem of line arc injection deformationSolve the problem of injection molding deformationSemiconductor/solid-state device detailsSolid-state devicesPlastic packagingLead bonding
The invention discloses a bonding method for preventing injection molding deformation of a long-span bonding lead of an integrated circuit, and the method comprises the following steps: enabling a set gold wire to penetrate into a hole at the top of a chopper, and to penetrate out of a port at the bottom of the chopper; enabling the chopper port to drive the bonding wire to be bonded at the first bonding point A; enabling the port of the chopper to rise backwards to a set height point B according to a set inclination angle; translating the port of the chopper backwards to a set distance C point; vertically lifting the chopper port to a set height D point; moving the port of the chopper to a point E forwards and upwards according to a set height and a set distance; and moving the chopper port forwards and downwards to a second bonding point F to finish bonding and finish lead bonding between the first bonding point A and the second bonding point F. The problem that in an existing plastic packaging technology, under the conditions that the number of pins is large, the distance is small, gold wires are thin, and the span is long, a long-span bonding wire arc is deformed through injection molding is solved. And the method can be popularized to similar long-span lead wire key products according to the wire diameter of the gold wire.
Owner:GUIZHOU ZHENHUA FENGGUANG SEMICON

Recoverable cable type linear temperature-sensing detector

ActiveCN100588921CAchieve reuseThe alarm temperature is not limited by the length of useThermometers using electric/magnetic elementsUsing electrical meansElectrical conductorBand shape
The invention relates to a recovery cable linear temperature detector. As two ends of temperature cable are connected with microcomputer modulator and terminal resistance R respectively a closed signal collection circuit is formed. It is characterized in that the structure of temperature cable is that an elastic metal conductor is covered by melting NTC characteristic material layer with vicat softening point in 40deg.C-180deg.C; anther is an elastic metal conductor; after a hole belt or net insulation obstructing layer is set between two line cores they are twisted or winded; finally they arecovered by outer sleeve layer in plastic protrusion together. Multiple starting resistance values for alarming temperature signals heated on one meter of temperature cable are set in memory of microcomputer modulator, which inspects resistance change of melting NTC characteristic material layer between conductors. When circumstance temperature makes melting NTC characteristic layer soften, elastic metal conduct and melting NTC characteristic material layer forms short circuit so that output of alarming signal of given temperature is realized. When short circuit and open circuit happen betweentwo conductors by not fire factor, failure signals of short circuit and open circuit are outputted by microcomputer modulator. It is provided with simple process, high productivity and low producingcost.
Owner:SHENYANG P T SECURITY TECH

Electric kettle detecting device

The invention belongs to the technical field of household appliance detection, and particularly relates to an electric kettle detecting device. The electric kettle detecting device comprises a rack, and the rack is provided with a testing cabinet, a water injection system, an electric control system and a turning touch screen. The water injection system and the electric control system are arranged on the back of the rack. The testing cabinet is arranged at the front portion of the rack. The testing cabinet is provided with a plurality of testing positions and a plurality of water injection nozzles, a plurality of steam exhausting fans are arranged on the top or the side of the testing cabinet, and a water drainage pipe is arranged at the side portion of the testing cabinet. According to the electric kettle detecting device, automatic testing and steam pumping and exhausting are achieved, the labor intensity of workers is relieved, the operating environment is improved, the problems that when water is boiled in a dry boiling mode, the manual detection omission ratio is very high, and scalding and other industrial accidents are prone to occurrence are solved, the dry-boiling water boiling testing omission ratio can be reduced, and the product quality reliability is enhanced, the production efficiency and the workshop manufacturing capacity are improved.
Owner:DONGGUAN GUANJIA ELECTRONICS EQUIP

Lead frame, semiconductor device and packaging technology thereof

The invention provides a lead frame, a semiconductor device and a packaging technology of the semiconductor device. The lead frame comprises a border and multiple chip packaging units arranged in the border in the length direction of the border; each chip packaging unit comprises a chip base island, multiple pins and multiple splice bars connecting the chip base island with the border; all the pins and the border are located on the same plane, a height variation exists between the chip base island and the plane where the border is located, and then after packaging is conducted, the back surface of the chip base island can be exposed for cooling. According to the lead frame, a cooling fin in the prior art is omitted, the cost performance is high, correspondingly, the process of riveting the cooling pin in the prior art is omitted in the lead frame manufacturing process, and the defect that poor contact is caused by riveting is overcome; when the lead frame is packaged, the possibility that soldering tin is splashed to the pins can be lowered, and the frequency of occurrence of open circuit and short circuit is lowered; in addition, the fins can be clamped and fixed from the two sides of the pins for wire soldering, wire soldering is more stable, and the reliability of the product quality is improved.
Owner:SHENZHEN STS MICROELECTRONICS

Method for eliminating brazing blockage of tube-seat ring-shaped workpiece of stainless steel sandwich structure

The invention relates to a method for eliminating the brazing blockage of a tube-seat ring-shaped workpiece of a stainless steel sandwich structure. The method comprises the following steps: measuring and recording the axial distance L1 between the inner-wall large-end ring-shaped groove center and the large-end surface; marking out an outer-wall drilling position line on the outer-wall outer surface according to the axial size L1-L2 with the outer-wall large-end surface as a reference, and carrying out drilling with the position line as a reference; carrying out seal welding on the open end of a tube seat by the adoption of manual argon arc welding, and grinding the welded open end to be level; welding the tube seat to the outer-wall drilling part, and sawing the closed end of the tube seat so as to turn the tube seat into an open state; electroplating nickel on the outer-wall inner surface and the inner-wall outer surface, and and carrying out spot welding on the inner-wall rib surface by using a brazing material; pressing the inner and outer walls, and carrying out seal welding on the large and small ends through manual argon arc welding; and carrying out brazing on the inner and outer walls, and carrying out X-ray inspection. Through the method, the brazing blockage can be eliminated; the adoption of a mechanical method for blockage elimination as well as manual argon repair welding or repeated brazing can be avoided; the product production progress can be guaranteed; the production cost can be reduced; and the product quality reliability can be improved.
Owner:XIAN SPACE ENGINE CO LTD

On-off tester for testing terminal blocks

According to an on-off tester for testing terminal blocks, a first cylinder on a platform support presses a connection terminal shell of a terminal block product to be tested; a lead end is in matching and inserting communication with a lead end connecting jig; and a second cylinder detection probe is in contact and is conducted with a press connecting bolt to form a detection loop, wherein whether a product is qualified or not is judged by an on-off condition of the detection loop. When a product is qualified, a magnetic switch sends a starting signal to a PLC controller; a third cylinder marks a side surface of a terminal end of the terminal block product to be tested with dots; a first cylinder and a second cylinder are released and retraced; and the qualified product which is marked with dots can enter a next process. Unqualified products are continuously pressed by the first cylinder and the second cylinder, the unqualified products can be taken out only by manually pressing a reset button, and the unqualified products are not marked with dots, so that the unqualified products are easy to distinguish and cannot enter the next process. The test result is accurate, and reliability of the product quality is improved. Professional wire testing instruments do not need to be purchase, and the on-off tester has a simple structure, is convenient to operate, and is low in production, manufacture, use and maintenance cost.
Owner:镇江宏联电工有限公司

A kind of composite material lattice structure and preparation method

ActiveCN107599445BIncrease productivitySuitable for large-scale production of composite lattice structuresLayered productsFiberShell molding
The invention provides a composite lattice structure and a preparation method. The composite lattice structure is composed of an upper face plate, a lower face plate and a lattice core arranged between the upper face plate and the lower face plate. The lattice core is formed in the manner that lattice core triangular fibers and trapezoidal fibers are interlaced. Foam interlayers are arranged in the upper face plate and the lower face plate. A specific injection manner is applied to the composite lattice structure for VARTM formation. The preparation method of the composite lattice structure comprises the seven steps of (1) preparing a fusible alloy mold core; (2) inserting the triangular fibers; (3) laying fibers on the bottom layers of the upper face plate and the lower face plate; (4) inserting the trapezoidal fibers; (5) arranging the face plate interlayers and laying surface fibers of the face plates; (6) conducting VARTM (vacuum assisted resin transfer molding) formation; (7) heating and melting the fusible alloy mold core. The composite lattice structure and the preparation method effectively solve the connection problem between a composite lattice core and the face plates, integrated formation is achieved, the quality is reliable, the technology is simple, and the node strength is high.
Owner:HARBIN ENG UNIV

High-precision measuring device in air medium of finished thermistor

The invention provides a high-precision measurement device for thermistor finished products in an air medium. The measurement device comprises a feeding mechanism, a test mechanism and a sorting mechanism, wherein an air device is arranged on one side of the feeding mechanism, the feeding mechanism comprises a feeding box body, an automatic discharging mechanism is arranged on one side of the feeding box body, and a clamping conveying mechanism is arranged in the feeding box body. Paper tapes are conveyed into the test mechanism by the clamping conveying mechanism to be detected. Then, after being sorted by the sorting mechanism, the paper tapes are collected. Rails are arranged in the test mechanism and the sorting mechanism. The measurement device adopts PLC control. As the high-precision measurement device adopts an air medium sorting comparison process in measurement, the labor intensity of workers is low, and the production efficiency is high. Three to four equipment can be operated by one person, and measurement in the air medium does not require washing or drying, so that the environment is protected, energy is saved, the production cycle of products is short, labor force is greatly saved, and the quality reliability of the products is greatly improved. The maximum error of the test system is smaller than or equal to 0.02%.
Owner:JIANGSU SHIRUI ELECTRONICS CO LTD
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