157results about "Resistor housing/enclosing/embedding" patented technology

The invention discloses an electric lightning arrester insulation shield capable of being installed without power outage and an installation method, and relates to the technical field of electric protection, the electric lightning arrester insulation shield comprises an insulation cover, an elastic automatic locking mechanism, an installation sheet and a reinforcing plate, the insulation cover is integrally formed, a turnover plate is connected to the lower ends of a left side plate and a right side plate, and the elastic automatic locking mechanism comprises a left locking module and a right locking module; the modules are connected through a pressure piece and a clamping piece through a connecting piece, a lock body part penetrates through a locking hole to achieve locking, during installation, the protective cover is driven by an insulating rod to be horizontally pushed into the top of the lightning arrester, a locking mechanism is extruded and triggered to achieve automatic locking, the protective cover is fixed to an exposed metal piece, and main insulation is not affected. Locking is reliable, the service life is long, operation is convenient, the device can be expanded to multiple fields, and safe operation of equipment is guaranteed.

A system includes an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a power module, the power module including a thermistor assembly, the thermistor assembly including: a conductive layer including a trench; a thermistor connected to the conductive layer and disposed across the trench; and a first height control feature between the conductive layer and the thermistor.

The application provides a double-row lead frame resistance. The double-row lead frame resistance comprises a lead frame, a resistance, and the two ends of the first coil and the second coil are respectively installed with the lead wires; a protective cover; a cooling mechanism, the inside of the protective cover is fixedly connected with the supporting rod, the bottom end of the supporting rod is installed with the air bag; the top end of the supporting rod is internally installed with the fixed block and the fixed frame, the inside of the fixed block is slidably connected with the piston, the inside of the piston and the fixed block is respectively installed with the magnetic ring, the magnetic rings are attracted to each other; the inside of the fixed frame is slidably connected with the sliding rod, the sliding rod is fixedly connected with the piston, the side wall of the sliding rod is sleeved with the spring, and the two ends of the spring are respectively connected with the fixed frame and the piston; a cooling mechanism; a connecting mechanism. The double-row lead frame resistance provided by the application has the advantages of eliminating the self-induction of the coil, reducing the eddy current, and facilitating the dissipation of the heat inside the coil.

The present invention relates to a sensor comprising a ceramic substrate (1) and two metallization layers (2) applied on opposite surfaces of the ceramic substrate (1), each having an adhesion layer (2A) applied directly onto the ceramic substrate (1) and a gold layer (2B) applied on each adhesion layer (2A). Furthermore, the present invention relates to a method for manufacturing the sensor.

The application provides an intelligent packaging equipment for a pressure-sensitive resistor, a packaging process and the pressure-sensitive resistor. The intelligent packaging equipment for the pressure-sensitive resistor comprises a man-machine interface, a plurality of clamps and, sequentially arranged along the transmission direction of the clamps, a feeding rack, an oven, a packaging device and a discharging rack. The feeding rack, the oven and the discharging rack accommodate the clamps in a layered manner. The oven is provided with a constant temperature device for constant temperature adjustment of the pressure-sensitive resistor on the clamp. The packaging device comprises a packaging mechanical arm, a heat preservation box, a heating assembly and a powder tank assembly. The powder tank assembly is filled with packaging powder. The heating assembly comprises a heating door, a leveling rack and a sliding seat. The leveling rack is provided with a scraper extending into the powder tank assembly. The heat preservation box, the heating assembly and the powder tank assembly are sequentially distributed from top to bottom to make the packaging process of the pressure-sensitive resistor continuous and orderly, improve the packaging efficiency and the packaging yield, and reduce the volume of the packaging equipment and improve the space utilization.

The invention discloses a chip thermistor. The chip thermistor comprises a ceramic body, a coating layer, two external electrodes and a plurality of internal electrodes, the ceramic body comprises a plurality of ceramic layers which are stacked in the first direction, the outer surface of the ceramic body is coated with the coating layer, and the two external electrodes are arranged on the ceramic body. The internal electrode is disposed in the ceramic body, and the surface area S1 on the ceramic layer and the surface area S of the ceramic layer satisfy 0.1 S < = S1 < = 0.5 S. According to the area proportion design, the electrical yield is guaranteed, meanwhile, an enough ceramic matrix bonding area is reserved, and the cracking risk can be reduced. Meanwhile, the coating layer can serve as a protective barrier to block electroplating liquid and water vapor, the corrosion and overplating phenomena are effectively improved, and the structural strength of the device is improved. In addition, the invention also discloses electronic equipment with the chip thermistor.

Disclosed in the present invention is a short-range optical potentiometer module, comprising a potential base body provided with a key slot, and a potential key which is mounted inside the key slot and can be displaced up and down, wherein a reset member for resetting the potential key is also arranged inside the key slot, an optical pair transistor composed of a photosensitive element and a light-emitting element is arranged inside the potential key, the optical pair transistor can be displaced up and down along with the potential key, a key base is internally provided with a fixed grating corresponding to the optical pair transistor, the reset member is sleeved on the grating, and the grating is configured such that the flux of light received by the photosensitive element from the light-emitting element changes along with the up-and-down displacement of the potential key, thereby causing an electrical signal generated by the photosensitive element to change along with the displacement of the potential key. The module of the solution uses non-contact photoelectric elements, thereby greatly increasing the service life; when the change in flux of light at the same distance is adjusted, the overall height of the module is close to or the same as the height of a potential base body; and the module has a skillful overall structure layout, can be conveniently assembled and replaced, and has strong practicality.

The invention discloses low-temperature curing slurry for a thick film hybrid circuit and a preparation method of the low-temperature curing slurry, and relates to the technical field of electronic slurry. Wherein the organic carrier comprises 35 to 55 weight percent of thermosetting resin and 45 to 65 weight percent of solvent; the thermosetting resin comprises at least two of epoxy resin, modified epoxy resin and organosilicon modified polyester resin, the epoxy resin is bisphenol A type solid resin, and the modified epoxy resin is an alkoxy siloxane modified product with an epoxy functional group. According to the invention, at least two of epoxy resin, modified epoxy resin and organosilicon modified polyester resin are adopted as matrix resin, the epoxy resin is bisphenol A type solid resin, a body network structure is formed after curing and crosslinking, the crosslinking density is high, the modified epoxy resin is an alkoxy siloxane modified product with an epoxy functional group, and the curing strength is high. Alkoxy siloxane contained in the resin can improve the adhesive force in the curing process, and in addition, the leveling property of the slurry can be improved.

A surge protective device (SPD) module (100) includes a printed circuit board (PCB) (150), a first electrode (122), a second electrode (124), and a disc varistor (140) electrically connected between the first and second electrodes. The SPD module forms a housing assembly (121) defining a chamber (123) containing the varistor. The PCB forms a portion of the housing assembly.

This method for manufacturing an electronic component unit (1) is provided with: a first step for manufacturing a base member (2); and a second step for assembling, to the base member (2), either a connector-type housing (3A) integrally and additionally molded on the base member (2) or a housing-type housing (3B) assembled so as to engage with the base member (2). When the connector-type housing (3A) is selected, the connector-type housing (3A) is additionally integrally formed on the base member (2) so as to fill the engagement portion (23) of the base member (2) and form the fitting opening (91), and when the housing-type housing (3B) is selected, after the pair of electric wires (6) and the pair of terminals (30) are connected, the connector-type housing (3A) is integrally formed on the base member (2). Then, the housing-type housing (3B) is assembled to the base member (2) in such a manner that the housing-type housing (3B) is engaged with the engagement section (23) of the base member (2) and the pair of electric wires (6) are inserted through the inside and outside of each of the pair of accommodating chambers (78).

The present invention relates to an electrical resistance (1) extending between a first end (2) and a second end (4), comprising a plurality of modules (10) made of an electrically insulating material and a winding (11) wound in turns around the modules (10), each of the modules (10) having an outer peripheral surface (12) and an inner peripheral surface, the modules (10) being arranged side-by-side from the first end (2) to the second end (4) of the electrical resistance (1), thereby defining a volume (44) configured for the circulation of a cooling fluid.

A ceramic thermosensitive element comprises a ceramic body, an inner electrode layer, an interconnection structure and a packaging layer. The inner electrode layer is provided with a first inner electrode layer and a second inner electrode layer which respectively cover the upper surface and the lower surface of the ceramic body. The interconnection structure is provided with a first interconnection structure and a second interconnection structure which are respectively connected with the first inner electrode layer and the second inner electrode layer and extend to the lower part of the second inner electrode layer. The packaging layer wraps the ceramic body, the inner electrode layer and the interconnection structures, so that part of the first interconnection structures and part of the second interconnection structures are located on the lower side of the packaging layer.

The invention provides a lightning arrester core fixed based on an insulating rod and an assembly method thereof, which are used for solving various problems of a traditional metal oxide lightning arrester core. According to the lightning arrester core body fixed based on the insulating rods, the first groove and the second groove are matched and clamped with the Y-shaped clamping heads at the two ends of the insulating rods, and the core body is fixed through the plurality of insulating rods, so that the additional arrangement of structures such as an insulating cylinder is avoided, and the volume of the lightning arrester core body is reduced; meanwhile, the axial displacement of the insulating rod in the assembling and using processes is effectively avoided, so that the close contact among a plurality of resistor discs is ensured; compared with the prior art, the resistor discs pressed in a Y-shaped clamping mode are higher in stability, the plurality of resistor discs are in closer contact and do not generate gaps, and when the outer sides of the resistor discs are directly wrapped with the rubber jackets, rubber is not prone to permeating into the space between every two adjacent resistor discs.

The utility model provides a lightning protection device with anti-interference capability, and relates to the technical field of lightning protection devices with anti-interference capability, the lightning protection device comprises a lightning arrester, the surface of the lightning arrester is provided with a protection device, the upper end and the lower end of the lightning arrester are fixedly connected with connecting columns, the surfaces of the connecting columns are provided with splicing devices, and the splicing devices are connected with the lightning arrester. The protection device comprises protection covers arranged on the surface of the lightning arrester, the side face of each protection cover is provided with a clamping groove, the surface of the other protection cover is fixedly connected with a protruding block, the surface of each protruding block is fixedly connected with a clamping ring, the surface of the lightning arrester is fixedly connected with baffles, and the baffles are arranged at the upper end and the lower end of the lightning arrester. According to the metal anti-interference lightning arrester, the problem that the lightning protection effect is weakened due to corrosion caused by the fact that a metal anti-interference lightning arrester is subjected to rain for a long time is solved.

To provide a resistor capable of improving heat dissipation property.SOLUTION: A resistor 1 includes a resistance body part 2, and a resin part 3 covering the resistance body part 2. The resin part 3 has a heat dissipation fin 32.SELECTED DRAWING: Figure 1

A surge protection device is mounted on a transmitter. A cable that sends a signal received from an external device is connected to terminal block screw portions. The connector is detachable with respect to a connector component provided in the transmitter, and outputs an input signal received from each of the terminal block screw portions to the connector component. The surge protection element absorbs a surge electric current in a case where a surge voltage is applied from the terminal block screw portions to the connector component. The terminal connector portion is connected to the terminal block screw portions via the surge protection element.

The utility model relates to the technical field of resistors, in particular to a simple water-cooling resistor which comprises a first sealing plate and a second sealing plate which are made of insulating materials and are arranged in a laminated mode, and a resistor disc located between the first sealing plate and the second sealing plate, the first sealing plate is a flat plate, and a convex hull is formed in the middle of the second sealing plate in the direction away from the first sealing plate. Therefore, the peripheral sides of the resistor discs are tightly clamped on the peripheral sides of the first sealing plate and the second sealing plate. The middle of the resistor disc is wavy, and wave crests of the wavy shape alternately abut against the inner wall of the first sealing plate and the inner wall of the convex hull, so that a plurality of first flow guide cavities are formed between the resistor disc and the first sealing plate, and a plurality of second flow guide cavities are formed between the resistor disc and the convex hull; and overflowing holes which are arranged in a staggered manner are formed in the side wall of each wave crest of the resistor disc, so that the plurality of first flow guide cavities and the plurality of second flow guide cavities are sequentially communicated in an S shape to form a cooling water channel. Compared with the prior art, the cooling effect is good, the power density is high, the structure is simple and the cost is low.

The utility model relates to the technical field of resistor processing, in particular to a large-resistance high-precision sampling resistor. According to the utility model, the input end and the output end are wound on the fixing piece in the same direction by taking the fixing piece as the center to form the resistor body, the resistor body is arranged in the shell, and the input end and the output end respectively penetrate out of the lead holes in the cover plate to form the input pin and the output pin. According to the invention, the original surface area of the resistor is stacked to realize the volume light weight, and the resistance value can be shared instead of the complicated resistance adjusting pattern design on a resistor area for the large resistance value requirement, so that the resistor body can make the heat more uniform; the resistance value of the resistor body is adjusted by increasing and decreasing the length of the resistor material, so that excessive materials are not wasted, and resistor products with different large resistance values can be prepared.

The utility model discloses a chip resistor, which relates to the technical field of chip resistors and comprises a substrate, two ends of the upper side surface of the substrate are respectively provided with a positive electrode, two ends of the lower side surface of the substrate are respectively provided with a back electrode, and the positive electrodes and the back electrodes are respectively provided with a prefabricated groove. Side electrodes are arranged on the outer sides of the prefabricated grooves, net-shaped pins are fixedly connected to the side electrodes, and the net-shaped pins are correspondingly arranged in the prefabricated grooves. According to the resistor disclosed by the utility model, the prefabricated grooves are formed in the positive electrode and the back electrode, and the net-shaped pins are inserted and fixed in the prefabricated grooves, so that the conductive effect of the resistor is remarkably enhanced, and the connection stability between the pins and the electrodes is also greatly improved.

The application discloses a resistance box for aerospace engine, comprising a box body assembly, a current-limiting resistance assembly, a connector assembly and an internal wiring assembly; the current-limiting resistance assembly and the internal wiring assembly are arranged in the box body assembly, the connector assembly is sealingly embedded in the side wall of the box body, the current-limiting resistance assembly is electrically connected with the connector assembly through the internal wiring assembly, and ignition current limiting and signal switching are realized; the current-limiting resistance assembly comprises multi-specification JRY97-A-1W flame-retardant initiating explosive current-limiting resistors and RX21-1W normal current-limiting resistors, and is suitable for current-limiting requirements of different engines; the connector assembly is a multi-model aerospace-grade shielding connector, and precise signal switching is realized; the internal wiring assembly adopts standardized wires and a multi-layer protection structure, and insulation and mechanical strength are guaranteed. The application integrates current-limiting and switching functions, is high in universality, compact in structure, excellent in insulation and anti-interference, suitable for complex ignition conditions of aerospace engines, and can be widely applied to the field of initiating explosive ignition control of aerospace and special equipment.

[Problem] To provide a sealant composition for a protective film layer, said sealant composition being made of a resin and being cured at a lower temperature than the firing temperature of an overcoat agent comprising a glass paste. [Solution] This sealant composition for a protective film layer is characterized by including: a bisnadimide compound that is represented by chemical formula 1 and in which a divalent hydrocarbon group (R1) is bonded to nitrogen atoms of imide groups having norbornene skeletons; a phenolic resin; and a reactive diluent that has one or more epoxy groups. A resin cured film that has superior heat resistance can be formed using this composition, and thus this composition can be used as a sealant for a protective film layer of a chip resistor, a chip capacitor, or similar.

The utility model discloses a switch angular displacement potentiometer with an adjustable switch starting position, which comprises a shell, a rotating shaft, a detection assembly, a switch assembly, a glass bead screw, a switch torque sleeve and a locking screw, the rotating shaft penetrates through a corresponding through hole of the shell, and the detection assembly and the switch assembly are respectively arranged in the shell and are respectively connected with the rotating shaft. A protruding strip is arranged on the outer wall of the switch torque sleeve, the switch torque sleeve is arranged on the rotating shaft in a sleeved mode through a center through hole of the switch torque sleeve, a radial screw hole is formed in the wall of the switch torque sleeve, and the locking screw is installed in the radial screw hole and abuts against the outer wall of the rotating shaft. The glass bead screws are installed in corresponding screw holes in the shell, balls of the glass bead screws are close to the outer wall of the switch torque sleeve, and the axial direction of the glass bead screws is perpendicular to the axial direction of the switch torque sleeve. According to the utility model, the switch starting position adjusting function is realized, the switch starting position can be changed according to the actual needs of different users in the final assembly process of production, and the application is convenient.

The invention discloses Bi2O3-B2O3-ZnO-SiO2 electronic packaging glass as well as a preparation method and application of the Bi2O3-B2O3-ZnO-SiO2 electronic packaging glass. The Bi2O3-B2O3-ZnO-SiO2 electronic packaging glass is prepared from the following raw material components in percentage by weight: 6 to 12 percent of SiO2, 3 to 5 percent of Al2O3, 4 to 7 percent of Na2O, 1 to 4 percent of ZrO2, 10 to 20 percent of B2O3, 10 to 22 percent of ZnO and 48 to 60 percent of Bi2O3. Through component regulation and control and heat treatment process optimization, on one hand, the sintering temperature is reduced to 500-650 DEG C, and the structural integrity of the resistive layer is guaranteed; on the other hand, the thermal expansion coefficient is stabilized at 7.8-8.5 * 10 <-6 > / DEG C, the matching degree with a ruthenium resistance layer is improved to 90% or above, and the interface internal stress and the thermal cycle cracking risk are greatly reduced; furthermore, the wetting angle of the obtained glass molten slurry is small, the glass molten slurry can fully extend on the surface of the resistive layer, the defect of incomplete coverage of traditional encapsulation is overcome, and the thickness uniformity of the encapsulation layer is ensured; the prepared packaging layer has high electrical insulativity, high air tightness, strong chemical stability and small internal stress, can stably serve for a long time in a high-temperature environment, and is suitable for the fields of resistors, automotive electronics, sensors and the like with high reliability requirements.

The utility model discloses an explosion-proof flame-retardant piezoresistor which comprises a shell and a piezoresistor, the shell is filled with a flame-retardant epoxy resin and quartz sand mixture, and the piezoresistor is wrapped in the flame-retardant epoxy resin and quartz sand mixture; the piezoresistor comprises a body and two pins, one pin comprises a first extension section, a second extension section and a low-temperature alloy wire section connected between the first extension section and the second extension section, the low-temperature alloy wire section is close to the body, and a fluxing agent layer is coated outside the low-temperature alloy wire section. A piezoresistor is attached to a low-temperature alloy wire, and the surface of the low-temperature alloy wire is coated with a fluxing agent layer; and a mixture of flame-retardant epoxy resin and quartz sand is filled in the shell to wrap the piezoresistor body. And when the piezoresistor is overheated due to abnormity, the low-temperature alloy wire is quickly melted to completely break the pin, so that the circuit is permanently cut off, and the piezoresistor is prevented from firing and burning.

A surge protective device comprises: an end cap at least partially comprised of an electrically insulating substrate and at least one pattern of electrically conductive layers laminated to the substrate; and, at least one housing assembly, each comprising: an electrically conductive housing electrode formed of an end wall and a sidewall having an end face, the housing electrode and the sidewall defining a cavity, the end cap disposed against the end face to seal the cavity; an electrically conductive inner electrode at least partially disposed within the cavity; and, at least one varistor member formed of a varistor material disposed in the housing cavity, the at least one varistor member electrically connected to the housing electrode and the inner electrode.

The utility model discloses a high-power shunt resistor assembly which comprises a resistor body, a first pin, a second pin, a first insulating sheet, a second insulating sheet and an insulating cover, the first pin penetrates through the first insulating sheet and is internally connected to one end of the resistor body, and the second pin penetrates through the second insulating sheet and is internally connected to the other end of the resistor body; the inner surface of the insulating cover wraps the resistor body, the first insulating sheet is located at one end of the insulating cover and integrally formed with the insulating cover, and the second insulating sheet is located at the other end of the insulating cover and integrally formed with the insulating cover; a plurality of strip-shaped protruding edges are arranged on the outer surface of the insulating cover, and the strip-shaped protruding edges and the insulating cover are integrally formed. The high-power shunt resistor assembly disclosed by the utility model has the beneficial effects that the resistor body is completely wrapped inside by the first insulating sheet, the second insulating sheet and the insulating cover so as to withstand higher-grade current.

The utility model relates to the technical field of resistors, in particular to an anti-vulcanization thick-film chip resistor for an automobile. According to the technical scheme, a resistance layer is arranged on a substrate, positive electrodes are arranged on the two sides of the resistance layer, side electrodes wrap the outer sides of the positive electrodes, back electrodes are arranged on the two sides of the bottom end of the substrate, second clamping teeth are arranged on the back electrodes, clamping grooves are formed in the positive electrodes, first clamping teeth and limiting protruding blocks are arranged on the side electrodes, and the limiting protruding blocks are arranged on the first clamping teeth. The side electrode is clamped with the second clamping tooth and the clamping groove through the first clamping tooth and the limiting convex block respectively; the outer side of the side electrode is coated with a nickel-plated layer and a tin-plated layer, and the outer side of the resistive layer is coated with an inner protective layer and an outer protective layer. According to the utility model, through a unique clamping structure, the electrode connection stability is obviously enhanced, the contact resistance is reduced, and the current transmission stability is ensured. Due to the multi-layer protection design, vulcanization and water vapor erosion are effectively resisted, the service life of the resistor is prolonged, and powerful support is provided for reliable operation of an automobile electronic system.

The invention provides a sulfur-resistant thin-film resistor and a manufacturing method thereof. The sulfur-resistant thin-film resistor comprises a substrate, a first inner electrode pair, a resistance layer, a passivation layer, two sulfur-resistant conductive layers and a second inner electrode pair, the sulfur-resistant conductive layers comprise carbon materials, and each sulfur-resistant conductive layer is provided with a groove. The first inner electrode pair is covered with the sulfur-resistant conductive layer which is provided with the groove and contains carbon, so that the first inner electrode pair is prevented from being subjected to vulcanization reaction, and electrical conduction can be carried out through the sulfur-resistant conductive layer with good conductivity.

The utility model discloses a metallized film capacitor with a dustproof structure, which comprises a capacitor inner shell, a capacitor outer shell is arranged outside the capacitor inner shell, and the center line of the capacitor outer shell and the center line of the capacitor inner shell are on the same vertical plane. One side of the capacitor inner shell is provided with a dismounting structure used for rapid dismounting. According to the metallized film capacitor with the dustproof structure, the threaded part is arranged, when the metallized film capacitor needs to be disassembled and assembled, the threaded lantern ring is rotated to be separated from the outside of the threaded part, then the threaded lantern ring is disassembled from the outside of the positioning disc, and then the positioning disc can be disassembled from one side of the inner shell of the capacitor, so that the inner core of the capacitor can be disassembled conveniently; after inspection is completed, one side of the inner shell of the capacitor is covered with the positioning disc, then the threaded part is sleeved with the threaded lantern ring, the threaded lantern ring is screwed tightly, the positioning pressing ring is attached to one side of the positioning disc, and therefore the positioning disc is positioned through the positioning pressing ring, and the problem that rapid disassembly and assembly cannot be achieved is solved.

The invention provides a metal oxide lightning arrester which comprises a mounting mechanism which comprises a mounting frame and a vertical plate fixedly arranged at one end of the bottom of the mounting frame, and a supporting rod is fixedly mounted at the other end of the bottom of the mounting frame; the conductive mechanism comprises a conductive column, a power connection ball, a conductive disc, a main conductive component and an auxiliary conductive component, a through hole is formed in the mounting frame and located between the vertical plate and the supporting rod, the conductive column is mounted on the mounting frame and located in the through hole, the power connection ball is fixedly arranged at the top of the conductive column, and the conductive disc is welded to the bottom of the conductive column; a main conductive part and an auxiliary conductive part are symmetrically mounted on the conductive disc; the lightning protection mechanism comprises a mounting plate, a main lightning arrester main body and an auxiliary lightning arrester main body, and the inner side of the mounting plate is rotationally connected to the supporting rod. According to the invention, by arranging the isolation assembly, the isolation assembly performs isolation protection on the auxiliary lightning arrester main body in a working mode, so that environmental erosion and misconduction are avoided, the service life of the auxiliary lightning arrester main body is prolonged, and the reliability of a standby state is improved.