32results about How to "High conductivity reliability" patented technology

Provided is a light source that has high reliability and hardly causes conductivity failure between a light emitting device and a conductive land. In an LED light source of the present invention, an LED bare chip is mounted to conductive lands of a substrate, using bumps (55a, 55b). The LED bare chip (D65) is provided with a p-electrode (Lp) and an n-electrode (Ln) on a rear surface. The p-electrode (Lp) is larger in area than the n-electrode (Ln). The p-electrode (Lp) is bonded to a corresponding conductive land via four bumps (55a), whereas the n-electrode (Ln) is bonded to a corresponding conductive land via one bump (55b). A bonded area (Sn) between the n-electrode (Ln) and the bump (55b) is larger than a bonded area (Sp) between the p-electrode (Lp) and one of the bumps (55a).

The invention relates to a flat circuit board and a manufacturing process thereof. A conductive circuit graph strip is arranged on an insulation base board of the flat circuit board, the circuit graph strip is embedded in the upper surface of the insulation base board, and the outer surface of the circuit graph strip and the upper surface of the insulation base board are located on the same plane. The flat circuit board has the advantages of being high in reliability and good in smoothness. After the circuit graph strip is embedded in the insulation base board, circuit external damage is avoided, the strip is broken only when physical damage is caused to the base board, conductivity reliability is high, and the technical requirement for surface sliding contact communication is met. The flat circuit board is especially applicable to precision operation with the strict environment requirement in the fields of aerospace, aviation, military and medical treatment.

The invention discloses a heating system for a cylindrical battery module. The heating system comprises at least one heating system connected with a battery management system, wherein the heating system comprises an insulating fixed plate provided with at least one accommodating hole, wherein at least one or more parallel PTC heating elements for heating the battery module and detecting the battery module temperature are arranged in each accommodating hole; metal electrode plates are arranged on the two side surfaces of each PTC heating element; pins are arranged on the left and right sides of each metal electrode plate; the pins are provided with inserting pins; the inserting pins are arranged on the surface of the insulating fixed plate; the heating system is connected with the battery management system through the inserting pins via a wire; heat conducting silica gel is arranged on the outer side surfaces of the metal electrode plates separately; and more than two concave parts are arranged on the outer side surface of each piece of the heat conducting silica gel. The invention also provides the battery module, which comprises the heating system. Compared with the prior art, another temperature sensor is not required, so that setting of parts is reduced while the production cost is lowered.

The invention provides a main shaft grounding device which comprises a main shaft and a shell which sleeves the main shaft. The shell is provided with a main shaft grounding device which comprises a fixed plate and a movable plate. The fixed plate is fixedly connected with the shell. The bottom surface of the fixed plate is connected to the top surface of the movable plate through three paralelly arranged expansion springs. The bottom surface of the movable plate is provided with at least two carbon brush holders. Carbon brushes are fixed in the carbon brush holders, the bottoms of the carbon brushes are in contact with the outer surface of the main shaft, and the top of the carbon brushes are connected to a grounding wire. The main shaft grounding device has the advantages of a simple structure, a stable connection, convenient maintenance, and the long service lives of carbon brushes.

The invention relates to a contact finger for a fixed contact in an on / off circuit or a bus connecting device of a high-voltage switch equipment, wherein the high-voltage switch equipment relates to a circuit breaker, a load switch and a disconnecting switch. The contact finger is used for electric conduction contact between a moving contact and a fixed contact, has the advantages of small size, large contact area and good electric conductivity, and is also suitable for two occasions including static connection and sliding connection between the moving contact and the fixed contact.

The invention relates to an expansion joint with steel aluminum composite rails and double copper rings and belongs to equipment powered by third rails in urban rail transit. The expansion joint mainly comprises the left and right steel aluminum composite rails, fishplates and double-cooper-ring current compensator, the current compensator is provided with two juxtaposed copper rings: a lower copper ring 2 and an upper copper ring 3, and the steel aluminum composite rail is divided into a left steel aluminum composite rail 1 and a right steel aluminum composite rail 7 by means of Z-shaped wire-electrode cutting. The expansion joint with the steel aluminum composite rails and the double copper rings is small in initial slide starting force and high in reliability.

The invention discloses a bus duct structure, which comprises a shell with an opening formed in the bottom of the shell, and a cover plate mounted at the opening in the bottom of the shell. An inner cavity of the shell is divided into a left containing cavity and a right containing cavity from the middle. The left cavity and the right cavity are each internally provided with an m-shaped insulatingpart. Each insulating part is provided with two U-shaped containing grooves used for containing U-shaped conductors. A plurality of insulating supports distributed in the longitudinal direction of the shell are installed on the cover plate. Each insulating support is provided with supporting arm used for being supported at the lower end of the corresponding phase of a conductor. With the adoptionof the above structure, all conductors are in large-area contact with the shell or the shell at the part of a ground wire, so that the heat dissipation performance is improved. In addition, due to the arrangement of a protruding structure, the stable stress is guaranteed. The connection reliability is improved. Meanwhile, the bus duct is reasonable in overall structural design, easy in connectionand installation, convenient in insertion and connection and very high in conductive reliability.

The invention discloses a high-heat-dissipation bus duct structure. The high-heat-dissipation bus duct structure comprises a shell and a cover plate, wherein the shell is of a convex-shaped cross-section shape structure; the middle of an inner cavity in the upper half part of the shell is divided into a left containing cavity and a right containing cavity from the middle, and a U-shaped upper insulating part is arranged in each of the left containing cavity and the right containing cavity separately; two U-shaped lower insulating parts which are pressed against the edge of the shell are arranged in an inner cavity of the lower half part of the shell, and a U-shaped containing groove is formed in each of the upper insulating part and the lower insulating part separately; a plurality of insulating supports arranged in the longitudinal direction of the shell are arranged on the cover plate; and each insulating support can be supported at the lower end of each phase conductor. By the adoption of the structure, the four-phase U-shaped conductor scan be directly pressed against the side wall of the shell through the insulating parts, and the four-phase conductors can directly dissipate heat directly, and therefore the heat dissipation capacity is greatly improved; and by virtue of an additionally arranged convex structure, the stable stress is also ensured, the reliability of connection is improved, the overall structural design is reasonable, the connection and installation are simple, the plugging is convenient, and the conductive reliability is very high.

The invention provides a rotary conductive apparatus. The rotary conductive apparatus comprises a cup body and a conductive rod, wherein liquid-state metal is arranged in the cup body; a first wiringend is arranged at the bottom end of the cup body; the first wiring end is used for connecting a first workpiece; the conductive rod is used for transmitting electric energy; the bottom end of the conductive rod is placed in the liquid-state metal; a second wiring end is arranged at the top end of the conductive rod; and the second wiring end is used for connecting a second workpiece. According tothe rotary conductive apparatus provided by the invention, the cup body and the conductive rod are connected with different workpieces; the bottom end of the conductive rod is placed in the liquid-state metal; the electric energy transmitted by the conductive rod is transferred to the cup body through the liquid-state metal, so that electric energy transmission between workpieces in different working states can be realized; and in addition, by adoption of the liquid-state metal conductive mode, the apparatus is high in conductive reliability and easy to maintain, and accessories can be replaced easily.

Provided is a method for processing or manufacturing a printed circuit board in which it is possible to form a via hole in which the top diameter is reduced and the difference between the top diameter and the bottom diameter is smaller. Also provided is a resin laminate used in this method. A printed wiring board resin laminate including a resin insulating layer for forming a fine via hole and a release film for laser attenuation laminated on the resin insulating layer, wherein the thickness of the release film for laser attenuation is set to over 50 [mu]m and no more than 180 [mu]m, making it possible to form a via hole having a top diameter of 30 [mu]m or less and a difference between the top diameter and the bottom diameter of 10 [mu]m or less.

The invention provides a double-power warming lamp embedded with two heating lamp wires and used for a bathroom warmer or an integrated suspended ceiling. Aiming at the problems of the existing warming lamp has only one lamp wire and the power is fixed and not adjustable, a double-power warming lamp capable of changing the heating power based on the environment temperature is provided. The double-power warming lamp changes the structure that the warming lamp with a conventional screw structure only has one lamp wire and two conductive contacts; by adding the lamp wire and corresponding conductive contact and a wiring terminal, the double-power warming lamp can respectively control the lightening of two lamp wires with different powers to work and heat through two independent power supply circuits, can select the different heating power based on the environment temperature, and can provide options of three gears of warming power to meet the warming requirements of different seasons and north and south difference. The double-power lamp wire can work selectively, thereby having good energy saving effect and reducing the unnecessary power consumption and energy waste.

The invention relates to an aluminum-based tapping type power transmission bus sectional material. The aluminum-based tapping type power transmission bus sectional material is characterized in that the section of the sectional material is square; thread holes or straight holes are formed in upper and lower panels; a cavity is hollow; and heat dissipation fin structures, which are arrayed in parallel along the length direction of the sectional material and are convex, are arranged on the surfaces of the panels on the two sides.

The invention provides a rotary conductive apparatus. The rotary conductive apparatus comprises a cup body and a conductive rod, wherein liquid-state metal is arranged in the cup body; a first wiringend is arranged at the bottom end of the cup body; the first wiring end is used for connecting a first workpiece; the conductive rod is used for transmitting electric energy; the bottom end of the conductive rod is placed in the liquid-state metal; a second wiring end is arranged at the top end of the conductive rod; and the second wiring end is used for connecting a second workpiece. According tothe rotary conductive apparatus provided by the invention, the cup body and the conductive rod are connected with different workpieces; the bottom end of the conductive rod is placed in the liquid-state metal; the electric energy transmitted by the conductive rod is transferred to the cup body through the liquid-state metal, so that electric energy transmission between workpieces in different working states can be realized; and in addition, by adoption of the liquid-state metal conductive mode, the apparatus is high in conductive reliability and easy to maintain, and accessories can be replaced easily.

The invention discloses a single-point perpendicular seismic detector. Two single-lead insulator binding posts are fixed to an upper cover. The lower ends of the single-lead insulator binding posts are welded to conductive lead springs, the lower ends of the conductive lead springs are welded to binding posts in coil rack binding post holes, and the other ends of the binding posts are connected with a leading-out terminal of an upper coil and a leading-out terminal of a lower coil in a welded mode; a coil rack is an integrated piece, the lower end of the coil rack is connected to the outer edge of a lower leaf spring in a pressed mode, the lower end of a lower magnetic shoe is connected to the inner edge of the lower leaf spring in a pressed mode, a boss of a lower cover is sleeved with the lower leaf spring, a groove in the upper end of the coil rack is connected to the outer edge of an upper leaf spring in a pressed mode, the upper end of an upper magnetic shoe is connected to the inner edge of the upper leaf spring in a pressed mode, and a lower boss of the upper cover is sleeved with the upper leaf spring; the upper end of the upper magnetic shoe is higher than the upper end of the upper coil and the lower end of the lower magnetic shoe is lower than the lower end of the lower coil; the deformation direction of a main reinforcing bar of the upper leaf spring and the deformation direction of a main reinforcing bar of the lower leaf spring are respectively anticlockwise. The single-point perpendicular seismic detector is simple in structure, low in cost, high in use reliability, long in service life, narrow in winding, wide in magnetic field, evener in magnetic field and more stable in output, and the number of dropping-resistant times is over 8000.

The invention discloses a carbon dioxide fracturing device and a filling method. The carbon dioxide fracturing device comprises a filling valve, a heating device, a liquid storage pipe, a sealing pad, a fixed-pressure shearing piece and a release pipe. The filling valve is provided with a valve body and a breakover portion located in the valve body. The breakover portion is used for inputting power to the other end of the filing valve from one end of the filling valve. The valve body is provided with an input opening for inputting liquid carbon dioxide, an output opening for outputting liquid carbon dioxide and a stop valve. A passageway is formed between the input opening and the output opening. The stop valve is used for controlling connection and disconnection of the passageway. One end of the stop valve is located on the outer surface of the valve body and the other end of the stop valve is located on the passageway. The filling valve is easy and convenient to operate, the filling method adopting the filling valve is easy and convenient to implement, the breakover structure design space is large, and filling efficiency is high.

The invention provides an isolation switch conducting structure formed by special-shaped aluminium tubes. The isolation switch conducting structure comprises two upper portion conductive parts and two lower portion conductive parts. The upper portion conductive parts include conductive tubes and contact pads that are installed on the conductive tubes; the two conductive tubes are symmetrically connected together through a rotating shaft pin, wherein the rotating shaft pin is in the middle of the conductive tubes, so that an X shape is formed; and connection pins are installed at the low portions of the conductive tubes. Besides, the two lower portion conductive parts are symmetrically arranged at positions, wherein the positions are below and corresponded to the upper portion conductive parts; end portion shafts are fixed at inner side ends of the two lower portion conductive parts; and pins are installed at outboard ends. And the connection pins are connected with the corresponded pins through two side plates. According to the invention, the contact pads employ a fixed contact mode with arc plane contacting; and the contact pads have simple structures and can be installed conveniently as well as the contact areas of the contacts are large. A copper belt fixed electrical connection mode is employed during the conductive connection, so that a conductive contact area is increased, current distribution is uniform and heat is radiated fast and conductive reliability is improved. Moreover, the whole conducting structure can be assembled conveniently and fast.

Provided is a short-circuited prevention power failure resetting type snap action thermostat. A first PTC heating unit and a second PTC heating unit of the thermostat are arranged in a first PTC bin and second PTC bin of a shell respectively and make contact with the top surface of an upper rivet head of a first rivet and the top surface of an upper rivet head of a second rivet respectively, the first rivet and the second rivet are connected to a bottom plate of the shell in a riveting mode, the first rivet penetrates through a first pressing block and a reed to be connected to a first terminal in a riveting mode, the second rivet penetrates through a second pressing block to be connected to a second terminal in a riveting mode, flaky compressed springs are arranged between the bottom surface of a guide frame and the top surface of the first PTC heating unit and between the bottom surface of the guide frame and the top surface of the second PTC heating unit, an action rod sequentially penetrates through the guide frame, the flaky compressed springs and a guide pipe in the center of the shell from top to bottom to be connected with the reed, and the top end of the action rod is located below a bimetallic disc and makes contact with the bimetallic disc. The thermostat is simple in structure, conducting elements are reliably connected, and when the thermostat works under abnormally harsh conditions, even though the PTC heating units are smashed, it is guaranteed that a short-circuit accident of the thermostat cannot occur.

The invention discloses a conductive insert installation tool for a lithium ion battery. The conductive insert installation tool at least comprises an upper holding rod, a lower holding rod, a pressing rod and a fixing rod, wherein the upper holding rod and the lower holding rod are used for bearing the palm holding force and arranged in parallel; the pressing rod is used for connecting the upper holding rod with the lower holding rod, the upper end of the pressing rod is fixedly connected with the side wall of the upper holding rod, and the upper holding rod is perpendicular to the pressing rod; the pressing rod is provided with a cavity with the open lower end, a sliding hole making the lower holding rod move conveniently in the axial direction of the pressing rod is formed in the side wall of the pressing rod, and the lower holding rod is movably connected with the pressing rod through the sliding hole; the fixing rod is used for being connected with a stud of the lithium ion battery, located in the cavity and fixedly connected with the lower holding rod; and the fixing rod is provided with a connecting cavity for being connected with the stud of the lithium ion battery and an internal thread is arranged on the inner wall of the connecting cavity. By the adoption of the technical scheme, a conductive insert and a battery part are assembled and the conduction reliability of a storage battery pack is greatly improved.

The invention discloses a solid-sealed polar pole structure of a load switch-fuse combined electric appliance. The solid-sealed polar pole comprises a fuse and a solid-sealed polar pole, the outer side of the fuse is provided with a fuse cavity which is integrally cast and molded with the solid-sealed polar pole; the left side and the right side of the fuse are respectively provided with a fusiontube clamp and a conductive clamp. A guide sleeve is arranged in the outer side of the fusion tube clamp; the outer side of the fusion tube clamp is provided with an upper contact arm; the upper contact arm is provided with a plum blossom contact; the outer side of the upper contact arm is provided with a positioning piece; a conductive piece is arranged under the fuse, the conductive piece is connected with a conductive clamp in a soft connection mode a, a vacuum arc-extinguishing chamber is arranged under the conductive piece, the vacuum arc-extinguishing chamber is connected to a lower contact arm in a soft connection mode b, a plum blossom contact is arranged on one side of the lower contact arm, and an insulating pull rod is arranged at the lower end of the solid-sealed polar pole. The solid-sealed polar pole structure is compact in structure, integrally sealed, small in size, wide in application range, high in stability and high in conductive reliability, and the vacuum arc-extinguishing chamber and the conductive part are fixedly connected and then cast in the pole.

The invention provides a chip module, a wafer-level chip packaging structure and a packaging method. The packaging structure forms metal bumps above the pads of two adjacent chip units. Since the size of the metal bumps is larger than the size of the pads , the thickness is thicker, which increases the effective contact area between the follow-up circuit in the chip unit and the conductive wiring layer, and improves the conductive reliability of the chip packaging structure; one of the technical solutions of the present invention is to directly emboss the optical element on the surface of the wafer The device simplifies two processes into one process, shortens the packaging process, and reduces production costs; the first opening is formed by cutting from the non-functional surface of the wafer to the metal bump direction, which is suitable for wafers that are not suitable for laser drilling Material; and a pre-cutting step is set before the cutting step, so that only the embossed components need to be cut during the cutting step, which reduces the problems of edge material delamination, product slivers, broken knives, and edge collapse during the cutting process.

The invention relates to a flat circuit board and a manufacturing process thereof. A conductive circuit graph strip is arranged on an insulation base board of the flat circuit board, the circuit graph strip is embedded in the upper surface of the insulation base board, and the outer surface of the circuit graph strip and the upper surface of the insulation base board are located on the same plane. The flat circuit board has the advantages of being high in reliability and good in smoothness. After the circuit graph strip is embedded in the insulation base board, circuit external damage is avoided, the strip is broken only when physical damage is caused to the base board, conductivity reliability is high, and the technical requirement for surface sliding contact communication is met. The flat circuit board is especially applicable to precision operation with the strict environment requirement in the fields of aerospace, aviation, military and medical treatment.

The invention relates to a wire spring plug bush comprising an outer sleeve, a clamping ring and a wire spring, wherein an insertion hole is formed in the outer sleeve, the insertion hole is formed into a stepped hole structure comprising a first insertion hole section and a second insertion hole section, the hole diameter of the first insertion hole section is more than that of the second insertion hole section, the first end of the first insertion hole section communicates with external environment, the second end of the first insertion hole section is connected with the first end of the second insertion hole section, and a first annular step surface is formed at the part where the second end of the first insertion hole section is connected with the first end of the second insertion holesection; the clamping ring is installed on the first annular step surface; the first end of the wire spring is inserted into the second insertion hole section after penetrating through the clamping ring from the first insertion hole section, and a plurality of claws are arranged on the second end of the wire spring, and fastened between the inner wall of the first insertion hole and the outer ring surface of the clamping ring by the way of bending from the inner ring surface of the clamping ring to the outer ring surface of the clamping ring. The wire spring plug bush has the advantages of being high in conductive efficiency, strong in reliability, simple to process, prone to manufacturing, low in processing cost and high in installation efficiency.

The invention discloses a conductive insert installation tool for a lithium ion battery. The conductive insert installation tool at least comprises an upper holding rod, a lower holding rod, a pressing rod and a fixing rod, wherein the upper holding rod and the lower holding rod are used for bearing the palm holding force and arranged in parallel; the pressing rod is used for connecting the upper holding rod with the lower holding rod, the upper end of the pressing rod is fixedly connected with the side wall of the upper holding rod, and the upper holding rod is perpendicular to the pressing rod; the pressing rod is provided with a cavity with the open lower end, a sliding hole making the lower holding rod move conveniently in the axial direction of the pressing rod is formed in the side wall of the pressing rod, and the lower holding rod is movably connected with the pressing rod through the sliding hole; the fixing rod is used for being connected with a stud of the lithium ion battery, located in the cavity and fixedly connected with the lower holding rod; and the fixing rod is provided with a connecting cavity for being connected with the stud of the lithium ion battery and an internal thread is arranged on the inner wall of the connecting cavity. By the adoption of the technical scheme, a conductive insert and a battery part are assembled and the conduction reliability of a storage battery pack is greatly improved.

The present invention provides a conductive material that has high storage stability and exhibits excellent cohesiveness even if it is left for a long time after the conductive material is placed on a member to be connected, so that it can exhibit high conductivity reliability. The conductive material related to the present invention includes: a plurality of conductive particles having solder on the outer surface portion of the conductive part, a thermosetting component, and a flux. The flux is a salt formed by an acid and an alkali. In , the flux exists in solid form.