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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention relates to a device for detachably fastening an object (12), in particular a vehicle body, to a supporting structure (14), in particular a skid, comprising a fastening element (72), which is movable between a release position and a locking position, and a counter-element (28). The object (12) can be locked by way of a retaining component (34) associated therewith between the fastening element (72) in the locking position and the counter-element (28). The fastening element (72) in the locking position can be moved towards the counter-element (28) and away therefrom. The fastening element (72) in the locking position can also be pressed towards the counter-element (28) by means of a biasing unit (136), with the object (12) undergoing biasing against the retaining component (34). The invention also relates to a skid having such a fastening device.

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.

The invention relates to a fusion type wire connector. The fusion type wire connector comprises a harness, wherein a fusion part is fixedly connected with an end part of the harness and comprises a heat conduction layer, conductive strips and fusion strips are arranged on the heat conduction layer at equal distance and are parallel to one another, the conductive strips and the fusion strips are arranged at intervals, the conductive strips are electrically connected with conductive lines in the harness, gel and fusion wires are doped in the fusion strips, a sealing film covers the fusion strips and the conductive strips, an insulation sleeve is sleeved on the harness in a sliding way, and a thermal shrinkage layer is arranged outside the insulation sleeve. The wire connector is novel and unique in structure, a wire can be rapidly fixed and connected, complicated operation is not needed, the safety and the stability of wire connection are improved, and meanwhile, the operation burden of a power worker is reduced.

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.