49results about How to "Guaranteed electrical conductivity" patented technology

The present application relates to the technical field of electric control switch, in particular to a kind of motorcycle disc brake control switch, including shell, two wiring copper sheets, electricity connection copper sheet, slider and cover plate, installation cavity is provided in the shell, installation groove is opened in the symmetrical two inner side walls of installation cavity, and two The wiring copper sheet is fixedly inserted in installation groove;The present application is closed by the setting of cover plate and sleeve, the part of wiring copper sheet in installation cavity is isolated with external environment with electricity connection copper sheet, and the inside of the position of wiring copper sheet through shell can be sealed with sealing glue, simultaneously still can be filled into inert gas in installation cavity, to avoid the water vapor in environment into installation cavity, cause the part of wiring copper sheet in installation cavity and electricity connection copper sheet corrosion Problem, guarantee the conductive property of wiring copper sheet and electricity connection copper sheet, guarantee the stability and waterproof performance of motorcycle disc brake control switch.

The utility model relates to the technical field of winding equipment, and discloses a winding device for a carbon-coated aluminum foil, which comprises a base, a winding device and a winding device, the deviation rectifying mechanism is arranged at the top end of the base; the deviation rectifying mechanism comprises a fixing frame, the bottom end of the fixing frame is fixedly connected with the top end of the base, a driving motor is fixedly installed on the fixing frame, and an output shaft of the driving motor is fixedly connected with a screw in a sleeved mode. According to the winding device for the carbon-coated aluminum foil, due to the design of the deviation rectifying mechanism, the defects in the prior art are effectively overcome, the guide plate can be flexibly adjusted according to the size specification of the carbon-coated aluminum foil, the winding device can be matched with both narrow-width aluminum foil and wide-width aluminum foil, the application range of the winding device in diversified production scenes is greatly expanded, and the winding device is suitable for popularization and application. And the aluminum foil is effectively prevented from deviating, wrinkling and the like in the winding process, the winding quality is greatly improved, and then the performance and production efficiency of the lithium ion battery are guaranteed.

The utility model provides a contact device, a relay and electric equipment. Relates to the technical field of electronic devices. The contact device comprises a contact body, a contact piece and a connecting piece. The contact element is connected with an external circuit; one of the contact piece and the contact body is a copper piece, and the other one of the contact piece and the contact body is an aluminum piece; the connecting piece is arranged between the contact body and the contact piece. The contact body and the contact piece are connected into a whole through the connecting piece, so that the problems of corrosion of a primary battery and difficult combination caused by direct contact of the contact piece and the contact body are avoided, the conductivity between the contact piece and the contact body is ensured, the connection strength of the contact piece and the contact body is improved, the service life of the contact device is prolonged, and the service life of the contact device is prolonged. The connection resistance between the contact device and the busbar is reduced, and the use performance of the contact device is improved.

The invention discloses a conductor equipment core component cross-scale near-net shape manufacturing method, and relates to the technical field of additive manufacturing, and the conductor equipment core component cross-scale near-net shape manufacturing method comprises the following steps: S1, in a forming process, synchronously executing macro-scale and micro-scale monitoring, and associating two types of data through coordinate calibration to obtain cross-scale associated data; and S2, based on the cross-scale associated data, performing fusion analysis with real-time process and environmental parameters, and outputting a process parameter adjustment direction according to conductor exclusive analysis logic. According to the cross-scale near-net-shape manufacturing method for the core component of the conductor equipment, the overall manufacturing quality and production efficiency of the core component of the conductor equipment can be remarkably improved, the deviation of the size and the organization structure is recognized in real time in the forming process through synchronous monitoring and data fusion of the macroscale and the microscale, and the manufacturing quality of the core component of the conductor equipment is improved. And intelligent analysis is carried out based on the characteristics of the conductor material, and dynamic optimization and closed-loop regulation and control of process parameters are realized.

This application discloses a composite photovoltaic ribbon and a photovoltaic module. The ribbon includes a ribbon substrate, which comprises an aluminum layer and a copper layer. The copper layer includes a first copper layer disposed on at least a portion of the outer peripheral surface of the aluminum layer. The mass ratio of the copper layer to the aluminum layer is 1:9 to 9:1, and the thickness of the first copper layer is greater than or equal to 2 μm. This application differs from the prior art in that it uses only copper as the ribbon substrate by adding an aluminum layer, reducing the amount of copper used and lowering the cost of the ribbon substrate. Furthermore, by limiting the mass ratio of the copper layer to the aluminum layer and the thickness of the copper layer, the electrical conductivity and mechanical properties of the ribbon substrate are ensured to meet requirements.

The present application relates to a kind of cylindrical electrode paste and its preparation method.A kind of cylindrical electrode paste, by mass parts, including 15-20 parts of anthracite main material, 25-40 parts of residual anode, 3-10 parts of graphite fragment, 25-35 parts of coke, 15-30 parts of organic binder, 6-18 parts of bio-based binder. Among them, organic binder includes medium temperature pitch, anthracene oil, beta resin. Among them, bio-based binder includes carbonized hydrophobic composite modified wood bamboo powder, sodium carboxymethyl cellulose. The carbonized hydrophobic composite modified wood bamboo powder of the present application and sodium carboxymethyl cellulose are compounded to form a bio-based binder, which cooperates with the organic binder to ensure the bonding strength, high temperature resistance and electrical conductivity of the cylindrical electrode paste, while realizing the green and low-carbon utilization of biomass, solving the problems of high temperature failure, moisture absorption and easy caking, and many pores of traditional bio-based binder, reducing the resistivity and production cost, and improving the structural density and use stability.

The embodiment of the present application provides a kind of battery and processing method of battery cell assembly primary structure.The battery cell assembly primary structure includes: battery cell body, the battery cell body has tab portion, the tab portion includes a plurality of sub-tab arranged in the thickness direction layer by layer, the tab portion includes the first face and the second face opposite in the thickness direction, the first face is used to be connected with cover plate;Exhaust assembly is at least provided to the first face, the exhaust assembly includes a plurality of first recesses arranged in the first face array, the first recess is used to provide gas escape path when the tab portion is welded with the cover plate.The battery cell assembly primary structure of the present application, when the tab portion is laser welded with the cover plate, part of the sub-tab that constitutes the inner wall of the first recess melts, forms gas escape path, reduces the influence on production rhythm.

This application relates to the field of functional paste technology, specifically disclosing an aqueous conductive silver paste comprising the following components: 50-60% silver-coated copper powder, 0.5-1% sodium polyacrylate, 1.5-3% sodium carboxymethyl cellulose, 0.5-1.5% polyvinyl alcohol, 0.3-2.0% co-povidone, 0.5-4.0% fumed silica, 0.2-2.0% surfactant, 0.6-1.4% co-solvent, and the balance being 0.08-0.12M sodium dihydrogen phosphate / disodium hydrogen phosphate buffer; the silver content in the silver-coated copper powder is 25-35%; furthermore, the aqueous conductive silver paste may also contain one or more conductive filler additives, namely carbon nanotubes and silver-plated glass microspheres, at a content of 1-4%. The aqueous conductive silver paste provided by this application has advantages such as low cost, good environmental friendliness, low drying temperature, and stable performance, and has good application prospects.

This invention provides an ultralight flame-retardant negative electrode current collector and its preparation method, which is prepared from raw materials comprising the following parts by weight: 20 parts polyimide powder; 60-70 parts copper-plated conductive carbon nanomaterials; 1-5 parts dispersant; and 10-15 parts flame retardant. The copper-plated conductive carbon nanomaterials are copper-plated conductive graphite and / or copper-plated carbon nanotubes. This invention provides an ultralight flame-retardant negative electrode current collector and its preparation method, using polyimide powder as a matrix, copper-plated conductive graphite and / or copper-plated carbon nanotubes as conductive fillers, and adding a flame retardant, which can effectively reduce the density of the current collector while ensuring its conductivity and safety performance.

This utility model belongs to the field of electronic component technology and discloses a low-cost photovoltaic copper-clad aluminum differential mode inductor. The differential mode inductor includes a magnetic core assembly, copper-clad aluminum wire, and copper-aluminum transition terminals. The copper-clad aluminum wire is wound on the magnetic core assembly, and the copper-aluminum transition terminals are welded to both ends of the copper-clad aluminum wire. The magnetic circuit length of the magnetic core assembly is 12.5±0.2cm, and the magnetic core coefficient is 138nH to 163nH. The copper-aluminum mass ratio of the copper-clad aluminum wire is 30:70, and the density of the copper-clad aluminum wire is 3.63×10⁻⁶g / mm³. This utility model's low-cost photovoltaic copper-clad aluminum differential mode inductor uses 30:70 copper-aluminum wire, increasing the cross-sectional area by 20% to compensate for thermal conductivity, reducing costs by more than 50%. Furthermore, through core size optimization and a 45° tilted winding design, weight is reduced, window space utilization is improved, and high efficiency and lightweight design are achieved.

The utility model discloses a bus duct with a quick plugging structure, which comprises at least two bus duct shells, conducting bars distributed at equal intervals are arranged in each bus duct shell through insulating seats, and the conducting bars in the two bus duct shells are spliced and limited and fixed through insulating bolts. The outer sides of the spliced conducting bars corresponding to the insulating bolts are in threaded connection with insulating nuts; two sides of the joint of the two bus duct shells are respectively provided with a limiting plug board, the upper end and the lower end of the joint of the two bus duct shells are respectively provided with a cover plate matched with the limiting plug board, and the cover plates are connected with the two bus duct shells through locking bolts. And the spliced conducting bars are fixed by a single insulating bolt and a plurality of insulating nuts, so that the conductivity of the bus duct is ensured, and the installation efficiency and the connection reliability of the bus duct are improved at the same time.

A semiconductor structure and its formation method are disclosed. The formation method includes: providing a substrate, forming a dielectric layer on the substrate, and forming an interconnect structure penetrating the dielectric layer within the dielectric layer, including a first interconnect opening and a second interconnect opening isolated from each other, wherein the opening size of the first interconnect opening is smaller than the opening size of the second interconnect opening; forming a first interconnect structure in the first interconnect opening and forming a second interconnect structure in the second interconnect opening; wherein the resistivity of the second interconnect structure material is lower than the resistivity of the first interconnect structure material, and the gap-filling capability of the first interconnect structure material is greater than the gap-filling capability of the second interconnect structure material. This invention, through the formation of the first and second interconnect structures, improves both the gap-filling performance of the interconnect structure material and ensures the conductivity of the interconnect structure, thereby improving the electrical performance and reliability of the device, such as back-end electrical performance and electromigration (EM) performance.

The present application provides a sunlight-resistant colored electrochemical energy storage fabric based on recycled cotton powder and a preparation method thereof, belonging to the technical fields of flexible electronic textiles and electrochemical energy storage. The preparation method first deposits a TiO2 film on the recycled cotton powder by ALD technology, and then performs mild hydrothermal synthesis to obtain a TMOs@TiO2@CP composite powder with a three-layer nested structure. Among them, the TiO2 film protects the internal recycled cotton powder from erosion during the hydrothermal reaction and is tightly combined with the TMOs functional layer through Ti-O-TM covalent bonds, improving the structural stability and interfacial bonding force of the composite powder. The present application uses the inherent color characteristics of different transition metal oxides to replace traditional black carbon-based materials, endowing the energy storage fabric with rich color choices and meeting the aesthetic and design requirements of high-end textiles. The process route of the present application avoids the damage to the inherent flexibility and structure of cotton fabrics by drastic means such as high-temperature carbonization.

A flexible, stretchable grounding device, belonging to the field of marine technology, includes a grounding structure with connecting shafts at both ends. The grounding structure comprises two sleeves, with a braided wiring strip placed between them. Wire ends are fixedly installed at both ends of the braided wiring strip, and a fixing pad is fixedly installed inside the sleeves. The connecting shafts are fixed between the equipment body and the ship structure using bolts and tightened. Since the sleeves are made of multiple single-wire braids, they have a certain degree of tensile strength, allowing for some displacement when connecting the equipment body and the ship structure. This avoids the possibility of the yellow-green grounding wire breaking off from the equipment body or ship structure without requiring sufficient displacement margin. Furthermore, its surface is coated with a tin-zinc anti-corrosion coating, ensuring conductivity, tensile strength, and good corrosion resistance.