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55results about How to "Guaranteed electrical contact" patented technology

Silicon-carbon composite cathode material with three-dimensional preformed hole structure and preparation method thereof

ActiveCN102623680ALow tap densityReduce volume specific capacityCell electrodesCarbon compositesCarbonization
The invention discloses a silicon-carbon composite cathode material with a three-dimensional preformed hole structure and a preparation method thereof. According to the composite cathode material, a carbon material having high electric conductivity and a stable structure is used as a matrix for dispersedly containing high-volume silicon particles, and proper three-dimensional expansion spaces are reserved around one or several silicon particles. The preparation method comprises the following steps of: carrying out surface modification on the silicon particles; coating the silicon particles by silicon dioxide; coating the silicon dioxide / silicon composite particles by carbon source precursors; carrying out high-temperature carbonization treatment; and removing a silicon dioxide template, and the like. When the composite material prepared by the preparation method is used for a lithium ion battery, the reversible specific capacity is high, and the cycle performance is excellent. The silicon-carbon composite cathode material has the advantages of simple preparation process and wide raw material resource and is suitable for industrial production.
Owner:湖南宸宇富基新能源科技有限公司

Device for measuring Seebeck coefficient and resistivity of semi-conductor film material

The present invention discloses a device used for measuring seebeck coefficient and electrical resistivity of semiconductor film materials at room temperature, wherein a thermopile and a heat conduction copper block having cold and heat terminals are integrated into a whole block, a cavum is formed at the lower part of the block, and an electric potential probe is deposited in the cavum. The seebeck electric potential detection points and the cold / heat ends thermocouple are deposited at the lower end of the heat conduction copper block; the electric potential probe, the detection points and the thermocouple are connected respectively to a gathering module; a reference resistor is connected in serial to a conversion switch and is also connected to the detection points; a constant current source is connected to the conversion switch; the conversion switch is connected to a data gathering module; the data gathering module is connected to a computer wherein gathered data is processed through a virtual instrument software to obtain the detection results. A detection platform is divided into two parts, wherein the upper part is used for fixing detection modules, and the lower part is used for supporting samples and has a screw used for lifting samples upwards to achieve a contact of samples and detection points. Said device is capable of perform a measurement of seebeck coefficient and electrical resistivity at the same time without destroying the thin film; furthermore, the measuring course is simple, and both the device lost and the testing cost are lower.
Owner:HUAZHONG UNIV OF SCI & TECH

Silicon-based composite anode material for lithium ion battery and preparation method thereof

The invention discloses a silicon-based composite anode material for a lithium ion battery and a preparation method thereof. The anode material comprises a graphite skeleton and an amorphous carbon layer which coats the graphite skeleton. The graphite skeleton is filled with a silicon material coated with a carbon-containing structure. The silicon material and the graphite skeleton are combined through a loose carbon material. The preparation method at least comprises the following steps: (1) preparing the silicon material coated with the carbon-containing structure; (2) preparing spherical particles with graphite as the main body; (3) coating the spherical particles with the amorphous carbon layer; and (4) granulating. According to the invention, the electric insulation problem of silicon anode due to its volume change can be solved, and it can be guaranteed that silicon active component can always be electrically contacted with a current collector during the charge-discharge cycle process. Meanwhile, huge stress effect caused by volume expansion / shrinkage of the active material silicon is further buffered. Then, the composite material has characteristics of high electrochemical cycle stability and regulable specific capacity.
Owner:GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG

Clamp for thermal resistance test of SMD packaged semiconductor device

The invention discloses a clamp for a thermal resistance test of a SMD packaged semiconductor device and relates to the technical field of semiconductor testing. The clamp comprises a metal base, a PCB, an insulated locating block and a compressing block. A groove is formed in the metal base. The PCB circuit is arranged in the groove. The insulated locating block is arranged on the PCB. The insulated locking block is provided with a locating containing hole matched with the tested SMD device. The compressing block capable of downwards compressing a tested SMD device is arranged on the insulated locating block. A thermocouple probe containing hole corresponding to the electrode of the tested SMD device in position is formed in the bottom of the groove. Two electrode wiring holes are formed in the side faces of the groove. Two electrodes enabling pins of the tested SMD device to be connected with electrode wiring holes are arranged on the PCB. The clamp can guarantee that the good thermal conductivity between the tested SMD device and a constant-temperature platform is achieved, the temperature of a shell can be easily controlled within a required range, it is also guaranteed that the electrodes of the tested SMD device are insulated from one another, and normal operation of the test is guaranteed.
Owner:THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP

Silicon, silicon-oxygen-carbon and graphene-based composite material, and preparation method and application thereof

The invention relates to a silicon, silicon-oxygen-carbon and graphene-based composite material, which comprises a graphene-based material and a silicon nano-material, wherein the silicon nano-material is attached to the surface of the graphene-based material; and the silicon nano-material is connected with the graphene-based material through a silicon-oxygen-carbon chain structure. The invention further provides a preparation method of the composite material. The silicon-oxygen-carbon structure contained in the composite material provided by the invention can ensure that the silicon material is relatively uniformly and firmly distributed on the surface of a graphene-based material, and can still electrically contact the conductive graphene-based material in the charge-discharge process after a relatively large volume change; and the graphene-based material not only can ensure the overall conductivity of the material, but also can relieve stress of the silicon material caused by the volume change in the charge-discharge process through folds. The composite material provided by the invention is excellent in overall performance, and has the characteristics of high electrochemical cycle stability and adjustable specific capacity.
Owner:CHINA AUTOMOTIVE BATTERY RES INST CO LTD +1

Flexible printed circuit board electric coupler

The invention discloses a flexible printed circuit board electric coupler, comprising an insulate body, a plurality of conductive terminals contained in the insulate body, a gland which is in pivot fit with the two sides of the insulate body and at least one cramp spliced at one side of the insulate body; wherein the cramp comprises a matrix, a holding part which extends toward the insulate body from one end of the matrix and spliced in the cramp slot of the insulate body, a projecting part which projects and extends upward from the other end of the matrix and an elastic trip extending toward the gland from the projecting part, wherein the elastic trip not only can guide the flexible printed circuit board to be smoothly inserted into the flexible printed circuit board electric coupler but also is against the side of the gland when the gland is in closed state, thus locating the gland and further ensuring electric contact of the flexible printed circuit board and the conductive terminal.
Owner:KUNSHAN JIAHUA ELECTRONICS

Lighting tube fixing support and lamp

The invention provides a lighting tube fixing support. The lighting tube fixing support comprises a support seat for supporting a free end of a lighting tube and a buckle cover which is buckled on the support seat and capable of sliding relative to the support seat; the buckle cover slides on the support seat in the free end direction of the lighting tube, and surrounds the free end of the lighting tube together with the support seat; the position where the free end of the lighting tube is surrounded by the buckle cover and the support seat together is a fixing position for fixing the free end of the lighting tube; the buckle cover slides on the support seat in the backwards direction of the free end of the lighting tube to enable the free end to be exposed, the exposed position is a releasing position, and the buckle cover slides between the fixing position and the releasing position. The invention further provides a lamp. The lamp comprises a lamp housing as well as a lamp holder and a lighting tube which are arranged in the lamp housing; the electrically-connected end of the lighting tube is connected to the lamp holder; the lamp further comprises a lighting tube fixing support arranged in a lamp cavity and used for supporting and fixing the free end of the lighting tube. By arranging the lighting tube fixing support, when the lamp is used in a vibrating environment, the loosing of the electrically-connected end of the lighting tube from the lamp holder is effectively prevented, and the electric contact of the lighting tube is ensured.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Tin dioxide/polypyrrole nanocomposite and preparation method thereof

The invention discloses a tin dioxide / polypyrrole nanocomposite. A tin tetrachloride solution and urea are taken as raw materials, and nano tin dioxide is prepared through a hydrothermal method in a microemulsion system including CTAB (cegtyl trimethyl ammonium bromide), n-pentanol and n-hexane; and then in the microemulsion system, ferric trichloride is taken as an oxidizing agent, and the material is prepared through microemulsionin situ polymerization to a pyrrole monomer. According to the composite material, nano tin dioxide is dispersed in loose conductive polypyrrole matrix, so that electrical contact between tin dioxide particles can be guaranteed effectively, and the nanocomposite is enabled to combine advantages of polypyrrole and tin dioxide, is expected to be an excellent Lithium-ion battery material, and is widely applied to the fields of micro-electronics, sensing, energy and the like. Meanwhile, the preparation method combines the advantages of the hydrothermal method and the microemulsion method, and has the advantages of easily obtained synthesis raw materials, simple synthesis and low cost.
Owner:SHANDONG UNIV

Flexible display device and manufacturing method thereof

The invention provides a flexible display device which comprises a flexible substrate, organic luminescent devices arranged on the two sides of the flexible substrate and an external circuit. Each organic luminescent device comprises a first electrode layer, a luminescent layer and a second electrode layer, and a third electrode layer and a fourth electrode layer are arranged at the two ends of the external circuit respectively. Conducting particles are included in the flexible substrate, and when pressure is applied, the distances among the conducting particles are reduced, and electric conduction in the vertical direction is achieved. Meanwhile, electrode connecting layers running through the flexible substrate are formed through heating solidification. The first electrode layer and the third electrode layer are in electric conduction through the corresponding electrode connecting layer, and the second electrode layer and the fourth electrode layer are in electrode conduction through the corresponding electrode connecting layer. The flexible substrate including the conducting particles is adopted in the flexible display device, and thus electrodes on the two sides of the substrate can be in reliable electric connection through the conducting particles in the flexible substrate.
Owner:BAZHOU YUNGU ELECTRONICS TECH CO LTD

Conductive polymer binder and preparation method and applications thereof

The invention discloses a conductive polymer binder and a preparation method and applications thereof, and belongs to the technical field of lithium ion batteries. The preparation method comprises following steps: dissolving PVP into a reaction medium; adding steamed aniline monomers, keeping on stirring, carrying out polymerization under the action of an initiator to generate a dark green solution, filtering, and washing to obtain PVP-PANI dark green powder. The conductive polymer binder is applied to the silicon base negative pole of a lithium ion battery. The provided conductive polymer binder has the advantages that the multiplying power and low temperature performance of a battery can be improved; the binder has a large amount of carbonyl groups and lactam polar groups and thus is affinity with carbonate electrolyte; due to good electron conductivity of PANI, the dynamic performance of a battery core is obviously enhanced; and the multiplying power and low temperature performanceof the battery core are greatly strengthened.
Owner:ZHUHAI COSMX BATTERY CO LTD

Semiconductor circuit assembly

The invention relates to a semiconductor circuit assembly which comprises a connecting device (1) provided with a first contact section (2) and formed from a composite film, a connection element (3) provided with a second contact section (4), a housing including a counter bearing (5) for supporting one of the contact sections (2, 4), and a mechanism generating clamping force to forcing the contact section (4) abut against each other. In order to improve the flow bearing capacity of the contact, the first contact section (2) and or the second contact section (4) and / or the counter bearing (5) include respective contact areas (A, B, C, D, E, F), where the contact areas are different from each other. One of the superimposed arranged contact sections (2, 4) deforms when exercising clamping force, where the section is adapted to shape of the other contact section during an electrical contact.
Owner:SEMIKRON ELECTRONICS GMBH & CO KG

Inspection jig and contact

Disclosed is an inspection jig (1), wherein a contact (10) in which a conductive contact pin (11) and a coil spring (12) are arranged in series or overlapping one another is thereby held in a contact holder (20) and presses on an electrode (41) connected to the inspection jig and presses on a terminal to be inspected to thereby make conductive contact. The coil spring (12) is composed of a relay end (122), a constant spring part (123), and an electrode end (121). In the terminal, the electrode end (121) curves in the center direction, is cut off near the center, and makes conductive contact with the electrode (41). The contact holder (20) holding the contact (10) is mounted in an electrode part (40) comprising the electrode (41) coaxial to the coil spring (12). As a result, reliable conductive contact is achieved between a contact and an electrode which can not only be manufactured easily and inexpensively but are also easy to maintain. In addition, an inspection jig and a contact which pass electricity to a printed wiring board that improves the electrical characteristics of the contact are realized.
Owner:西川秀雄

Ecological protection control device based on thermal expansion and contraction of gas

The invention discloses an ecological protection control device based on thermal expansion and contraction of gas, and relates to the technical field of ecological environmental protection. The deviceincludes a mounting base, wherein two No. 1 magnetic blocks which are mutually symmetrical are fixedly connected to the right inner wall of the mounting base, and buffer blocks are movably connectedto the right inner wall of the mounting base. According to the ecological protection control device based on thermal expansion and contraction of gas, a part of energy in light is absorbed and transferred to a graphene sheet through heat transfer of a heat conduction column when a solar sheet is irradiated by light through cooperative use of the solar sheet and the graphene sheet, the time for absorbing specified heat depends on the light intensity when the light heat reaches a certain level, therefore, air in the inner cavity of the mounting base is heated, and expands, a piston plate is moved to the right, a No. 1 contact point makes contact with a No. 2 contact point, and an irrigation device is started to irrigate a green belt, so that a control effect is achieved according to the light intensity, irrigation of the green belt is ensured effectively, and the water resource is also saved.
Owner:金云云

Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke

An over-voltage protector for a tension pole for preventing a lightning-caused broken wire comprises an arrester body, a linking and supporting component, an insulator and an air gap formed a top electrode and a bottom electrode. The over-voltage protector is characterized in that the arrester body is firmly electrically connected with a pole tower crossarm through the linking and supporting component; the insulator is mounted below the arrester body; the top electrode is fixed between the arrester body and the insulator, and communicated with the arrester body; the bottom electrode is connected with the bottom part of the insulator through a fastener; the air gap is formed between the top electrode and the bottom electrode; a puncture hardware component is mounted in the position of a lower jumper wire of an insulated conductor; and the puncture hardware component is tightly and electrically connected with the bottom electrode and the insulator through metal linking wires. The top electrode can be designed to the shape of a globe, and the bottom electrode can be designed to the shape of a sphere, a plate or a rod, and the like, thereby ensuring the top and the bottom electrodes to correspond to each other. The over-voltage protector has the characteristics of lightning-caused breakage prevention, simple construction, addition of an insulating cover, high safety and reliability, no need of any grounding measure, and convenient installation.
Owner:SHANDONG XUNSHI ELECTRIC

Clamp assembly for testing edge-emitting laser diode and test equipment with same

The invention relates to a clamp assembly for testing an edge-emitting laser diode and test equipment with the assembly. The clamp assembly mainly comprises a base, an upper cover and a locking mechanism. The base comprises an accommodating groove and a transmission cavity, and the transmission cavity and the accommodating groove are orthogonal and are communicated with each other; the upper covercomprises a body, a pressing block and a pressure applying assembly, the pressing block is coupled to the body and can slide relative to the body, and the pressing block is provided with an electriccontact interface; and in addition, the locking mechanism is arranged on at least one of the base and the upper cover, and selectively enables the base and the upper cover to be connected with or disconnected from each other. When the locking mechanism enables the base and the upper cover to be connected with each other, the pressure applying assembly applies force to an edge-emitting laser diodeaccommodated in the accommodating groove through the pressing block, and the edge-emitting laser diode can emit laser through the transmission cavity of the base for detection.
Owner:致茂电子(苏州)有限公司

Bump element of focal plane array and preparation method of bump element

The invention provides a bump element of a focal plane array and a preparation method of the bump element. The bump element comprises a base body and a plurality of bumps located on the base body. Each bump comprises a bump body and a cup cylinder. The diameter of the cup cylinder gradually increases from bottom to top. The bump bodies are located in the cup cylinders and fill the entire cup cylinders, and the cup cylinders are made of a metal material having electrical conductivity and certain rigidity. The bump bodies in the invention have a large top area and can ensure yield of electricalconnection. Deformation of the bump bodies mainly occurs in the lower half of the bump bodies with small diameter and weak strength, and the height compression of the bump bodies is mainly expressed in deformation of the lower parts when the flatness of photosensitive material is poor. The upper parts of the bodies can still keep a uniform radial size because of small deformation, so that uniformelectrical contact can be ensured. Also, the large top area is conducive to flip-chip bonding and avoids lateral slip. The cups are arranged on the outer side of the bump bodies, so that the bump bodies are uniform in size and the entire bumps are not easily collapsed or deformed.
Owner:WUHAN GAOXIN TECH

High-silicon-content silicon-carbon negative electrode plate and preparation method thereof

PendingCN113921756ASolve process difficulty and costAlleviate silicon anode swellingElectrode carriers/collectorsComposite materialCurrent collector
The invention provides a high-silicon-content silicon-carbon negative electrode plate, which comprises a current collector, a carbon layer formed on the surface of the current collector and a silicon material layer formed on the surface of the carbon layer, and the mass ratio of the carbon layer to the silicon material layer is 5: 95-50: 50. The surface of the current collector is coated with the carbon layer, the thickness and porosity of the current collector are controlled, silicon negative electrode expansion can be greatly relieved, and when a proper silicon negative electrode material is matched, the silicon negative electrode content of 50% or above can be achieved, and then the specific capacity of the pole piece can be greatly improved.
Owner:LANXI ZHIDE ADVANCED MATERIALS CO LTD

Electronic cigarette

The invention discloses an electronic cigarette which comprises a battery assembly (A) and a heating assembly (B), wherein the battery assembly (A) comprises a first conductive core pipe (1), a first insulating sleeve pipe (2) and a subordinate outer pipe (3); the heating assembly (B) comprises a second conductive core pipe (4), a second insulating sleeve pipe (5) and a main outer pipe (6); a conductive insulation ring (7) is coaxially arranged between the tail part of the first conductive core pipe (1) and the tail part of the second conductive core pipe (4), and the periphery of the vertical part of the conductive insulation ring (7) and the first conductive core pipe (1) is sleeved with a spring (8); and both ends of the spring (8) are respectively butted with the traverse part (71) ofthe conductive insulation ring (7) and a third inner shoulder (22) of the first insulating sleeve pipe (2). Compared with the prior art, the invention can ensure the favorable electric connection between the first conductive core pipe and the second conductive core pipe, thereby ensuring the favorable electric connection of electric heating wires; in a state of frequent assembly and disassembly of the battery assembly and the heating assembly, even if the conductive insulation ring or the second conductive core pipe generates deformation or abrasion, the conductive insulation ring and the second conductive core pipe can still maintain electric contact, and the normal working of the electric heating wires is ensured.
Owner:岑利明

Clamp assembly for testing surface-emitting laser diode and test equipment with same

The invention relates to a clamp assembly for testing a surface-emitting laser diode and test equipment with the assembly. The clamp assembly mainly comprises a base, an upper cover and a locking mechanism. The base comprises an accommodating groove and an electric contact interface, and the electric contact interface is arranged in the accommodating groove. Besides, the upper cover comprises a body, a pressing block and a pressure applying assembly, the pressing block comprises a through hole, the pressing block is coupled to the body and can slide relative to the body, and the pressure applying assembly is assembled on the body. Moreover, the locking mechanism is arranged on at least one of the base and the upper cover, and selectively enables the base and the upper cover to be connectedwith or disconnected from each other. When the locking mechanism enables the base and the upper cover to be jointed with each other, the accommodating groove and the through hole form a through cavity for the laser diode to emit laser.
Owner:致茂电子(苏州)有限公司

Vacuum cleaner assembly

A vacuum cleaner assembly (1) is disclosed comprising a rechargeable stick type vacuum cleaner (3), and a charging dock (5). The vacuum cleaner (3) comprises an elongated body (7). The vacuum cleaner(3) is configured to be releasably positioned in the charging dock (5) such that the elongated body (7) extends along a first direction (d1). The assembly (1) further comprises a magnetic assembly (9,9') configured to fixate a first portion (11) of the vacuum cleaner (3) to the charging dock (5), and a second fixating assembly (13, 13') configured to fixate a second portion (15) of the vacuum cleaner (3) to the charging dock (5). The second portion (15) is arranged a distance (d) from the first portion (11) along the first direction (d1).
Owner:AB ELECTROLUX

Binder, composition, electrode material and preparation method thereof

The invention provides a binder for electrochemical cells, which is a copolymer, the copolymer has a first repeating unit and a second repeating unit, the first repeating unit has a first side group, and the first side group It has a first end group, and the first end group is a polar functional group; the second repeating unit has a second side group, and the second side group has a second end group, and the second end group is epoxy base. The invention also provides a composition comprising the binder and active material particles, an electrochemical battery electrode material and a preparation method thereof. In the electrode material obtained by using the binder of the invention, the active material is not easy to fall off, and the stability of the electrode structure is high.
Owner:TSINGHUA UNIV

refrigerator

Disclosed is a refrigerator including: a shelf holder having a plurality of holes spaced apart from each other in a vertical direction and installed on a rear wall of a food storage compartment; a shelf assembly having a lighting device And is configured to be mounted on the shelf holder; a holder terminal unit having a holder side terminal arranged to face the hole and installed on the rear side of the shelf holder; and the shelf terminal A unit having pins electrically connected to the lighting device and coupled to the rear side of the shelf assembly facing the hole, wherein the pins are exposed to the outside of the shelf terminal unit to be able to communicate with the holder side The terminals are in contact and can move linearly in and out of the shelf terminal unit in a resilient manner.
Owner:LG ELECTRONICS INC

Vehicle and sliding window thereof

The invention belongs to the technical field of vehicle glass. The invention relates to a vehicle and a sliding window thereof. The sliding window comprises vehicle window glass, a heating module anda window frame mechanism, the window frame mechanism comprises a frame body and two guide rails; the two guide rails are respectively arranged on two sides of the frame body; the vehicle window glasscomprises fixed glass and sliding glass. Wherein the fixed glass is arranged in the frame body, a window is formed in the fixed glass, the sliding glass is arranged on the two guide rails in a slidingmode, the heating module comprises a first heating circuit, a second heating circuit and an electric contact assembly, the electric contact assembly is in electric contact with the second heating circuit, and the first heating circuit is electrically connected with the electric contact assembly through a wire. When the sliding glass slides, along with extension and contraction of the wire, the first heating circuit and the second heating circuit can be electrically connected all the time, so that the connection mode of an electric contact plug is omitted, the electric connection stability ofthe first heating circuit and the second heating circuit is improved, and then stable work of the heating module in the long-term use process of the sliding window is guaranteed.
Owner:XINYI AUTOMOBILE GLASS (SHENZHEN) CO LTD
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