14results about "Fixed capacitors" patented technology

The utility model discloses a chip capacitor implanting mechanism based on a thick rubber plate. The chip capacitor implanting mechanism comprises a mounting base, a mounting seat, an implanting device, an implanting conveying device and a motor vibration device, the implanting device comprises an implanting base plate, an implanting top plate and an implanting frame which are sequentially arranged at intervals from bottom to top, the implanting base plate and the implanting frame are connected through a vertically-extending supporting column, the implanting top plate is arranged between the implanting base plate and the implanting frame in a vertically-moving mode, and the conveying face of the implanting conveying device is located above the implanting top plate. According to the scheme, the motor vibration device is used for replacing an electromagnet in the prior art to achieve vibration implantation of the chip capacitor, the motor vibration device is driven by the motor, and the output end of the motor vibration device is only connected with the implantation device, so that the chip capacitor can be implanted after vibration acts on the implantation device in the implantation process; and then the chip capacitor positioned on the implanting device is driven to vibrate, and the chip capacitor is effectively implanted into the lead-in plate in cooperation with the swinging effect of the mounting seat.

The present invention relates to the technical field of a dielectric ceramic powder manufacturing process, and particularly relates to tetragonal nanometer barium titanate powder, a manufacturing method thereof, and an application. The manufacturing method includes: (S.1) manufacturing a mesoporous titanium dioxide precursor with controllable crystal phase, adding it to a barium salt solution so that the molar ratio of barium to titanium is 2 to 4, then adding ethanol and aqueous ammonia to obtain a barium titanate precursor suspension in which the volume ratio of ethanol is 40% to 60%; (S.2) subjecting the barium titanate precursor suspension to a hydrothermal reaction to obtain a barium titanate suspension; and (S.3) centrifugally washing, drying, and pulverizing the barium titanate suspension to obtain tetragonal nanometer barium titanate powder. In the present application, by simultaneously controlling the molar ratio of barium to titanium between the anatase-type mesoporous titanium dioxide precursor and the barium salt in the hydrothermal reaction process and the ratio of ethanol in the hydrothermal medium in the hydrothermal reaction process, barium titanate powder having a higher c / a value and particle size uniformity can be obtained.

An integrated circuit assembly comprises a plurality of die connection points configured to couple to an integrated circuit die, and a plurality of external connection points configured to couple to external circuitry. A metal power signal trace and a metal ground signal trace are each coupled to at least a respective one of the plurality of die connection points to provide electrical power to the integrated circuit. A first metal-insulator-metal capacitor comprises a plurality of first extensions interleaved with a plurality of extensions of the metal power signal trace and is separated from the plurality of extensions of the metal power signal trace by an insulator. A second metal-insulator-metal capacitor comprises a plurality of second extensions interleaved with a plurality of extensions of the metal ground trace and is also separated from the plurality of extensions of the metal ground trace by an insulator.

The utility model discloses a slurry spreading mechanism for chip capacitor end sealing. The slurry spreading mechanism comprises a slurry disc, a slurry spreading assembly and a mounting bracket, the slurry spreading assembly comprises a slurry collecting cutter, a slurry spreading cutter and a cleaning cutter which are sequentially arranged from front to back in the moving direction of the slurry disc. According to the scheme, the slurry spreading assembly comprises the slurry collecting cutter and the slurry spreading cutter, the slurry collecting cutter and the slurry spreading cutter can move up and down relative to the installation support, in the slurry spreading process, slurry is firstly accumulated at the rear end of the slurry disc through the slurry collecting cutter, and then the accumulated slurry is flatly spread through the slurry spreading cutter according to the thickness requirement; therefore, the slurry preparation speed in the slurry soaking process can be effectively increased. In the slurry spreading process of the slurry spreading cutter, slurry may be adhered to the back of the slurry spreading cutter, so that in order to prevent waste of the slurry and avoid frequent addition of the slurry to the slurry disc, a cleaning cutter is additionally arranged on the rear side of the slurry spreading cutter, and the cleaning cutter can effectively clean the slurry adhered to the back of the slurry spreading cutter so as to avoid waste of the slurry.

The utility model discloses a kind of patch capacitor plate changing mechanism based on thick rubber plate, including needle bed conveying device, partition frame clamping device, new board clamping device, new board conveying device and flattening device;Needle bed conveying device includes first conveying track and transfer platform, and transfer platform is horizontally movably installed in first conveying track;Partition frame clamping device and new board clamping device are successively erected above the end of first conveying track along the conveying direction of transfer platform, partition frame clamping device is used to clamp partition frame, new board clamping device is used to clamp empty thick rubber plate, and the clamp of partition frame clamping device and the clamp of new board clamping device can be moved up and down relative to transfer platform.This scheme changes the surface of patch capacitor from "same plate surface changing" to "plate changing", to avoid the problem that the edge of patch capacitor is exposed to porcelain, the end top appears crack, patch capacitor is pressed skew, etc., to ensure the end sealing quality of patch capacitor.

A capacitor is provided with: a conductive base material; a first dielectric layer disposed on the substrate; a first conductor disposed on the first dielectric layer and having a layer shape; a second dielectric layer disposed on the first conductor; and a second conductor disposed on the second dielectric layer. The first conductor includes an exposed portion not covered by the second dielectric layer and the second conductor. The substrate is electrically insulated from the first conductor by the first dielectric layer, and the second conductor is electrically insulated from the first conductor by the second dielectric layer. The base material includes a conductive portion electrically connected to the second conductor.

The utility model discloses a chip capacitor press-in mechanism based on a thick rubber plate. The chip capacitor press-in mechanism comprises a detection conveying device, a first cleaning device, a detection device, a press-in conveying device and a needle bed press-in device, the detection conveying device and the press-in conveying device are sequentially connected end to end, the press-in conveying device moves up and down relative to the detection conveying device, and the needle bed press-in device is located in the press-in conveying device; the first cleaning device and the detection device are sequentially arranged on the detection conveying device in the conveying direction of the detection conveying device. According to the scheme, firstly, the upper surface of the assembly is cleaned through the first cleaning device, so that products which are not implanted into the guide-in hole and / or products which are obliquely inserted into the guide-in hole on the surface of the guide-in plate are removed; and then whether foreign matters exist on the upper surface of the assembly is detected through the detection device, so that the subsequent press-in process is ensured to be smoothly carried out, and the conditions of product deformation, damaged needle of a needle bed, blockage of a guide-in hole / plate hole, damaged plate of a guide-in plate / thick rubber plate and the like can be effectively avoided.

The utility model discloses a chip capacitor leveling mechanism based on a thick rubber plate. The chip capacitor leveling mechanism comprises a leveling conveying device, a jacking platform, a feeding belt, a turnover device, a lead-in plate recovery device and a leveling device, the leveling and conveying device comprises a conveying rack and a conveying tray, and the conveying tray is horizontally and movably mounted at the top of the conveying rack; the jacking platform, the feeding belt, the turnover device and the guide-in plate recovery device are sequentially arranged at the feeding end of the conveying rack in a right-facing mode from bottom to top, and the jacking platform can move up and down relative to the feeding belt and the turnover device and can penetrate out of the feeding belt and the conveying face of the leveling conveying device. According to the chip capacitor leveling mechanism based on the thick rubber plate, the leveling clamp is used for clamping the thick rubber plate, the thick rubber plate is made to move downwards to the top of the leveling platform, after the ends of chip capacitors in the thick rubber plate abut against the upper surface of the leveling platform, the ends of the chip capacitors are flush, and the leveling action is completed; and the end sealing quality can be ensured.

A dielectric composition containing a barium titanate-based matrix main component and a minor component is disclosed. [Solution] The dielectric composition comprises at least one of the following minor components: a first minor component which is an oxide or carbonate of Yb; a second minor component which is an oxide containing Ba and Zr; a third minor component which is an oxide or carbonate of Y; a fourth minor component which is an oxide or carbonate of Mg; a fifth minor component which is an oxide or carbonate of V and Mn; and a sixth minor component which is an oxide or carbonate of Si, wherein at least one minor component comprises the first minor component and satisfies the X8R characteristics specified in the EIA standard.

This invention belongs to the field of capacitor processing technology, specifically relating to a plant-based synthetic ester environmentally friendly impregnating agent, its preparation method, and its application. The plant-based synthetic ester environmentally friendly impregnating agent provided by this invention comprises: an ester obtained by esterification of an organic alcohol and a plant-based fatty acid; wherein the organic alcohol is a straight-chain or branched alcohol; the straight-chain or branched alcohol has 4 to 10 carbon atoms; the plant-based fatty acid is composed of plant-based carboxylic acids, including one or more of plant-based saturated fatty acids and unsaturated fatty acids. This plant-based synthetic ester environmentally friendly impregnating agent has a high flash point, low pour point, good dielectric strength and volume resistivity, low dielectric loss, and excellent impregnation properties. It also features environmental degradability, renewable raw material sources, non-toxicity and harmlessness to humans, and excellent high-temperature performance, meeting the technical requirements of a new generation of high-performance, high-safety, and environmentally friendly capacitors.

The application provides a method and system for calculating the electric field of a circular arc region of a capacitor element, comprising the following steps: step 1, constructing a capacitor element model; step 2, setting different reduction factors, reducing the size of the capacitor element model by using the reduction factors to obtain a plurality of capacitor element reduction models; step 3, performing finite element calculation on each capacitor element reduction model to obtain a set of calculation results of the electric field of the circular arc region corresponding to each capacitor element reduction model; step 4, fitting each set of calculation results of the electric field of the circular arc region and the corresponding reduction factor to obtain a display relationship; and step 5, calculating the electric field intensity of the circular arc region corresponding to the capacitor element model by using the obtained display relationship. The application has the advantages of saving cost and obtaining the electric field intensity of the entire region.

The application provides a flexible capacitive pressure sensor based on a biorthogonal chord wave structure and a preparation method; the sensor comprises a flexible dielectric layer and a thin film electrode one and a thin film electrode two; one side of the flexible dielectric layer has a biorthogonal chord wave microstructure; the biorthogonal chord wave microstructure curved surface comprises two kinds of concave-convex microstructure pattern units formed by two orthogonal chord wave curves; the two kinds of concave-convex microstructure pattern units are arranged in a periodic repeating mode; the thin film electrode one is closely attached to the biorthogonal chord wave microstructure curved surface; and the thin film electrode two is closely attached to the other side of the flexible dielectric layer. The biorthogonal chord wave dielectric layer structure adopted by the sensor utilizes the topological characteristics of continuous change of the curvature, guarantees the full-range continuity of the stress sensitivity of the sensor, significantly widens the effective detection range under the premise of maintaining high sensitivity, and can realize the customized design of key performance indicators of the sensor.

The invention belongs to the technical field of electrical insulating materials, and discloses a synthetic ester capacitor impregnant and a preparation method and application thereof. The synthetic ester capacitor impregnant provided by the invention comprises the following components in parts by weight: 80 to 90 parts of neopentyl glycol ester, 10 to 20 parts of monohydric alcohol ester, 0.05 to 0.15 part of a boron nitride-sericite nano-composite agent and 0.05 to 0.3 part of an auxiliary agent. According to the synthetic ester capacitor impregnant prepared through a unique molecular design and a compounding process, synergistic improvement of electrical and rheological properties such as low viscosity, high insulating strength, low dielectric loss and excellent low-temperature performance is successfully achieved, the synthetic ester capacitor impregnant further has excellent thermal conductivity, the comprehensive characteristics of high insulation, low loss, fast flow and strong heat dissipation are achieved, and the synthetic ester capacitor impregnant is suitable for being used as a capacitor impregnant. The technical bottleneck that an existing material is difficult to consider both electrical performance and thermal management performance is effectively solved, and an ideal impregnating material is provided for developing a next-generation power capacitor with high performance and high power density.

A capacitor includes: a substrate having electrical conductivity; a first dielectric layer disposed on the substrate; a first conductor disposed on the first dielectric layer and having a layer shape; a second dielectric layer disposed on the first conductor; and a second conductor disposed on the second dielectric layer. The first conductor includes an exposed portion that is covered by neither the second dielectric layer nor the second conductor. The substrate is electrically insulated from the first conductor by the first dielectric layer, and the second conductor is electrically insulated from the first conductor by the second dielectric layer. The substrate includes a conductive portion electrically connected to the second conductor.