7532results about "Electrical equipment" patented technology

Provided is a coating die enabling coating of two layers of coating films stably. The coating die includes: a first block including a first manifold to receive a first coating liquid; a second block including a second manifold to receive a second coating liquid; and a shim sandwiched between the first block and the second block.

Disclosed in the present invention are a PET release film base film having low surface roughness and a preparation method therefor. The release film base film comprises three layers which are stacked: a core layer and two surface layers located on both sides of the core layer. The release film base film is obtained via three-layer co-extrusion by means of taking an auxiliary extrusion resin as a raw material of the two surface layers and a primary extrusion resin as a raw material of the core layer; the auxiliary extrusion resin is obtained by mixing an anti-blocking agent PET masterbatch and a PET base material in a mass ratio of 1:5-1:15; and the primary extrusion resin is a pure PET base material. The release film base film of the present invention has low surface roughness, low haze and excellent overall performance. Since large-particle benzoic acid-modified nano aluminum oxide has the refractive index very close to that of PET base films, the present invention can effectively avoid adverse visual impacts caused by a difference in the refractive index at interfaces between nanoparticles having large particle diameters and resin matrixes, thus effectively reducing the haze.

The invention discloses a high-impact-resistant thermoplastic composite material bottom protection plate which comprises a lower surface layer, a first high-impact-resistant layer, a sound insulation and heat preservation layer and an upper surface layer which are sequentially bonded through adhesive films from bottom to top, and the upper surface layer and the lower surface layer are both made of multiple layers of continuous fiber reinforced thermoplastic composite materials. And the first high-impact-resistant layer is made of an ultra-high molecular weight polyethylene material. Metal plates are not needed, the weather resistance of the metal plates does not need to be considered, machining is convenient, and continuous production can be achieved; compared with a bottom protection plate with a metal plate, the weight is reduced by 30-60%, the sound insulation and heat insulation performance is improved, and the gain effect is provided for battery heat preservation and automobile body noise reduction.

The invention discloses a flexible magnetic tactile sensing device based on a microstructure elastic layer, a three-dimensional force measuring device and a measuring method.The flexible magnetic tactile sensing device comprises a flexible magnetic film, the microstructure elastic layer, a Hall sensor, a PCB and a bottom shell, the Hall sensor is installed on the PCB, and the flexible magnetic film, the microstructure elastic layer, the PCB and the bottom shell are sequentially stacked from top to bottom; the microstructure elastic layer is of a non-planar structure, when the flexible magnetic film deforms due to stress, deformation of the flexible magnetic film is transmitted to the microstructure elastic layer, the change of the three-axis magnetic field intensity is measured through the Hall sensor and uploaded to a PC terminal for data processing, and three-dimensional force measurement is achieved. Three-dimensional force measurement can be achieved, the flexible magnetic film can generate local deformation in the normal direction when normal force is applied, the flexible magnetic film can generate tangential displacement when tangential force is applied, and application scenes suitable for different microstructure elastic layers are provided according to quantitative analysis results.

Disclosed is a film sticking device. The film sticking device includes an upper cover, a base and an inner tray, the upper cover is movably connected to a side of the upper cover; the inner tray includes a chassis and a limiting frame provided at the chassis, the limiting frame encloses a receiving groove on the chassis, an inner wall of the limiting frame is provided with a limiting step configured for installing a screen protection film, a positioning notch and a pulling notch are respectively provided at two opposite sides of the limiting frame; and the inner tray is detachably installed at the base, and the upper cover is configured to cover the receiving groove.

A battery protection bottom plate, a composite protection structure for a battery pack, and a vehicle. The battery protection bottom plate comprises an upper fiber reinforced resin layer, a metal plate, a fiber reinforced resin frame, and a lower fiber reinforced resin layer; the metal plate and the fiber reinforced resin frame are located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer; the metal plate is located inside the fiber reinforced resin frame; the top surface of the fiber reinforced resin frame is integrally connected to the upper fiber reinforced resin layer; the bottom surface of the fiber reinforced resin frame is integrally connected to the lower fiber reinforced resin layer.

The invention relates to the technical field of electronic information materials, in particular to a metal foil with a carrier, a metal-clad laminated board and a circuit board. The invention discloses a metal foil with a carrier, a metal-clad laminated board and a circuit board, the metal foil with the carrier is characterized in that the metal foil with the carrier comprises a carrier layer and a functional layer, the functional layer is arranged on one side face of the carrier layer, and the functional layer is arranged on the other side face of the carrier layer. And the ratio of the thermal expansion coefficient a of the functional layer to the thermal expansion coefficient b of the carrier layer satisfies 40% < = a / b < = 120%. The thermal expansion coefficient ratio of the carrier layer to the functional layer of the metal foil with the carrier is in a proper range, so that the stripping stability of the metal foil with the carrier during use can be improved, and the processing efficiency is improved.

Provided is an optical laminate that includes solidified liquid-crystal oriented layers and is capable of suppressing specific display unevenness when applied to an image display device. An optical laminate according to an embodiment of the present invention comprises: a polarizing plate including a polarizer; and a retardation layer that is laminated on the polarizing plate with a first adhesive layer therebetween. The retardation layer includes, in order from the polarizing plate side, a first solidified liquid-crystal oriented layer and a second solidified liquid-crystal oriented layer laminated on the first solidified liquid-crystal oriented layer with a second adhesive layer therebetween. The retardation layer has a circular polarization function or an elliptical polarization function over the entirety thereof and has a relationship Re(450) < Re(550) < Re(650). The thickness of at least one of the first adhesive layer and the second adhesive layer is 300 nm or less.

Foldable substrates comprise a substrate thickness from about 80 micrometers to about 2 millimeters. Foldable substrates comprise a first portion, a second portion, and a central portion positioned therebetween. The central portion comprises a central thickness from about 25 micrometers to about 80 micrometers defined between a first central surface area and a second central surface area. A central total thickness variation of the central portion over the first central surface area is less than or equal to 10 micrometers. The central portion comprises a first transition region extending between a first surface area of the first portion and the first central surface area. The first central surface area is recessed from the first major surface by a first distance. A thickness of the first transition region smoothly and monotonically decreases between the substrate thickness of the first portion and the central thickness of the central portion.

The present invention belongs to the technical field of polymer films, and specifically relates to a polypropylene film for lithium battery current collector and a preparation method thereof. The polypropylene film comprises an upper layer, an intermediate layer and a lower layer; by weight, the components of the upper layer and the lower layer each comprise 70-80 parts of isotactic polypropylene and 20-25 parts of modified polystyrene; the components of the intermediate layer comprise 80-85 parts of isotactic polypropylene and 15-20 parts of cycloolefin copolymer; firstly, the components of the upper layer, the intermediate layer and the lower layer are uniformly mixed, and then the main machine and the auxiliary machine of a three-layer co-extrusion casting machine are added for melt extrusion to obtain a polypropylene film; then, the polypropylene film is subjected to biaxial stretching to obtain a polypropylene film; the obtained composite polypropylene film has good mechanical properties and dielectric properties, high thermal stability, and is more suitable for lithium battery current collectors.

The invention relates to the technical field of polypropylene capacitance films and preparation methods thereof, in particular to a high-temperature-resistant polypropylene capacitance film and a preparation method thereof.The preparation method comprises the steps that a base film sheet comprising a first edge layer, a second edge layer and a heat-resistant layer is prepared through a three-layer co-extrusion extruder, and the heat-resistant layer is located between the first edge layer and the second edge layer; stretching the base film sheet to form a capacitance film base film; and plating a metal film on the surface of the capacitance film base film to obtain the capacitance film. According to the high-temperature-resistant polypropylene capacitor film prepared by the method, the heat-resistant layer can fundamentally improve the high-temperature-resistant performance of the base film of the capacitor film, so that the overall high-temperature-resistant performance of the capacitor film is improved, and the production is simple. Besides, metal ions and ash content are not introduced, the breakdown voltage of the capacitor film product is not reduced, the first edge layer and the second edge layer do not influence the processing performance of the high-temperature-resistant polypropylene capacitor film and the control of the surface roughness, and the subsequent process is not influenced.

Provided is a curable silicone composition and applications thereof. The curable silicone composition has superior hot-melt properties and moldability, where the flexibility, toughness, and stress relief properties of a cured product obtained therefrom are not impaired even if a large amount of functional inorganic filler is blended in. The curable silicone composition comprises an organopolysiloxane resin component with a weight average molecular weight in a range of 2,000 to 15,000 and that contains a siloxane unit represented by SiO4 / 2 making up at least 20 mol % or more of the total siloxane units, and one or more functional fillers. The silicone resin component comprises a curing reactive functional group containing a carbon-carbon double bond, and of that curing reactive functional group, 0.05 to 1.50 mol vinyl (CH2═CH—) group is contained per 100 g of the silicone component. The curable silicone composition generally has hot-melt properties as a whole.

Provided is a laminated body including a resin layer and a support layer laminated on at least one surface of the resin layer, wherein the resin layer comprises a resin composition containing a thermoplastic resin (A), a flame retardant (B), and fibers (C); the laminated body has a thickness of 0.5 mm or more; and the thickness of the resin layer is equal to or greater than twice the thickness of the support layer.

A method for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The present invention relates to a pouch film laminate body capable of manufacturing a high-strength battery case with excellent resistance to external stress and a battery case manufactured using the same. The pouch film laminate body of the present invention includes a gas barrier layer having a thickness of 60 μm or greater, a base layer disposed on one surface of the gas barrier layer, and a sealant layer disposed on the other surface of the gas barrier layer. The pouch film laminate layer has a tensile strength of 10 kgf / 15 mm to 20 kgf / 15 mm in a TD direction and an elongation of 150% to 235% in the TD direction.

The invention discloses a high-water-resistance photovoltaic module non-glass front plate and a preparation method thereof. The non-glass front plate comprises a transparent fluorine film, a cut-off type transparent flame-retardant adhesive film and a transparent water-blocking composite plate; the transparent water-blocking composite board comprises a transparent transition layer, a transparent PET film, a water-blocking film and a transparent priming coat which are compounded in sequence; the cut-off type transparent flame-retardant adhesive film contains an ultraviolet light absorber; a transparent transition layer in the transparent water-blocking composite board is compounded with the cut-off type transparent flame-retardant adhesive film; the transparent bottom coating is provided with protruding points protruding out of the surface of the coating. The high-water-resistance photovoltaic module non-glass front plate has the advantages of high weather resistance, high light transmittance, light weight, water resistance and flame retardance, is suitable for distributed power generation scenes, and can effectively overcome the defects that a glass back plate is heavy in weight, not easy to install and high in infrastructure requirement.

The invention provides a multi-layer composite structure, a preparation method, a battery cover and electronic equipment, the multi-layer composite structure is formed by a plurality of stacked fiber layers, each fiber layer is formed by dipping a fiber sheet in a pre-polymerized glue solution and then curing the fiber sheet, the fiber sheet in at least one fiber layer adopts poly (p-phenylene benzobisoxazole) fiber, and the fiber sheet in the at least one fiber layer is made of a poly (p-phenylene benzobisoxazole) fiber. The PBO fiber is prepared from the PBO fiber. Therefore, the multi-layer composite structure has higher strength and modulus, energy is absorbed and dispersed when the multi-layer composite structure is impacted, the reliability of the multi-layer composite structure is not influenced when the multi-layer composite structure is impacted on the basis of thinning and weight reduction, and the battery cover formed by the multi-layer composite structure has better anti-puncture performance.

A display device having a cover glass according to an example of the present disclosure includes a display panel, and a cover glass located on the display panel and including a folding area and a non-folding area, wherein the cover glass can include a glass layer including a glass having one or more slits disposed in the folding area in a width direction of the glass and formed in a shape passing through the glass in a height direction thereof, and a filler filled in each slit.

The invention discloses an aerogel battery interlayer structure and a manufacturing device thereof, and belongs to the technical field of battery interlayers, the aerogel battery interlayer structure comprises an aerogel interlayer and a manufacturing device for hot-pressing assembly of the aerogel interlayer, by arranging a buffer film and the aerogel interlayer of a silica gel frame, when blade batteries are recycled, two blade batteries are buffered and isolated through a buffer air bag, and the blade batteries can be recycled. The blade battery is prevented from being in direct contact with the aerogel interlayer, it is ensured that the aerogel interlayer does not deviate after long-term use, the assembly mechanism is arranged to be matched with the conveying frame, the movable pressing plate and the fixed pressing plate are in linkage two-stage hot pressing process, the movable pressing plate with the sealing ring firstly conducts pre-pressing sealing on the edge of the aerogel interlayer, and then the aerogel interlayer is subjected to hot pressing. And then the central area is hot-pressed through the high-temperature fixed pressing plate to ensure that the inert gas is completely sealed in the gradient pressurization process, so that a buffer air bag is formed between the buffer film and the aerogel pad, and the effect of hot-pressing integrated production of the aerogel interlayer is achieved.

The invention belongs to the technical field of film materials, and particularly relates to a lower supporting film for a flexible folding display screen and a preparation method of the lower supporting film. The supporting film sequentially comprises a protective film layer, a stainless steel base material layer, an adhesive layer and a release film layer from top to bottom; wherein the adhesive layer is prepared by coating a release film with modified organic silica gel liquid, drying and curing. The ultra-thin stainless steel is used as the base material layer, can resist external force impact and scraping, is low and stable in thermal expansion coefficient, can reduce the influence of environment temperature and humidity on the size of the supporting film, and guarantees the structural consistency of the screen module in long-term use; and through multi-component composite modification of polyurethane-thiazole-organic silicon, the peeling strength of the adhesive layer and stainless steel and the bending frequency of the supporting film are improved, and the service life of the supporting film is prolonged.

Provided are a foldable optical film with excellent impact resistance and with capability to improve design quality, and an image display device including the same. An aspect of the present invention provides a foldable optical film 10 with a front surface 10A and a back surface 10B opposite to the front surface 10A, wherein optical film 10 includes a hard coat layer 12, a resin layer 13, and a decorative layer 14; the hard coat layer 12 is located closer to the front surface 10A than the resin layer 13 and the decorative layer 14 in the optical film 10; and the resin layer 13 has a film thickness of 10 μm or more, and the resin layer 13 has a Martens hardness of 1 MPa or more and 100 MPa or less.

The invention discloses a copper-clad plate as well as a middle layer and a preparation method and application thereof, and belongs to the technical field of copper-clad plates. The preparation method of the intermediate layer for the copper-clad plate comprises the following steps: orthogonally weaving PBO fibers and glass fibers to obtain blend fibers; the mass ratio of the PBO fibers to the glass fibers is (10: 90)-(60: 40); carrying out modification treatment on the blend fibers to obtain modified blend fibers; dipping the modified blend fiber in a resin-containing dipping solution; and drying the impregnated modified blend fiber. The preparation method is simple and easy to operate, the PBO fibers and the glass fibers are orthogonally woven according to a specific ratio, so that on one hand, the blend fibers have the advantages of the PBO fibers and the glass fibers, on the other hand, the anisotropy of the blend fibers is effectively optimized, and the obtained copper-clad plate has relatively low dielectric loss and expansion coefficient; the peeling strength, the heat resistance and the flexibility are better.

An electronic device includes a device housing and heat generating electronics situated within the device housing. A thermally insulating screen defined by thermally insulating material is positioned on an exterior of the device housing. The thermally insulating screen defines a partition between the exterior of the device housing and external objects contacting the electronic device while allowing thermal energy from the heat generating electronics to dissipate through the device housing between instances of the thermally insulating material.

The present disclosure relates to materials and systems to manage thermal runaway issues in energy storage systems. Exemplary embodiments include an insulation layer that is encapsulated to form an insulation barrier. The encapsulation layer is made from a laminate film that comprises a malleable layer sandwiched between an outer polymer layer and an inner polymer layer.

The invention relates to a composite fiber membrane, an electromagnetic wave sensing and shielding driver and application thereof, and provides a fiber-based composite membrane which has photo-thermal and moisture stimulation deformation and electromagnetic wave sensing and shielding functions. The composite fiber membrane has the advantages of light weight, flexibility, high machinability and the like, and has wide application prospects in the fields of electromagnetic wave shielding, electromagnetic wave sensing, flexible electronic equipment, intelligent wearable equipment, soft robots and the like.

The present application discloses a head-up display glass and a head-up display system. The head-up display glass includes laminated glass and a reflective film layer; the laminated glass includes an outer glass plate, a polymer interlayer, and an inner glass plate; the reflective film layer includes an inner barrier layer, an improvement layer, and at least one laminated structure arranged in a stacked manner. The inner barrier layer can block the damage of alkali metal ions on the glass surface to the improvement layer during the heat treatment process and block the oxidation of the improvement layer caused by the diffusion of oxygen. The improvement layer can further improve the reflectivity of the reflective film layer to P-polarized light while maintaining a low reflectivity of the reflective film layer to visible light, so that when the driver inside the vehicle visually observes the reflective image of the head-up display glass, only the reflective image of the reflective film layer can be observed, thus eliminating the visual ghosting phenomenon; moreover, the reflectivity of the head-up display glass in the present application to visible light is less than or equal to 15%, and no obvious reflection phenomenon can be observed inside the vehicle.

The invention relates to the field of copper-clad plates, and discloses a low-dielectric-constant high-performance copper-clad plate and a preparation method thereof.The preparation method comprises the specific steps that epoxy resin, phenolic resin, polyphenyl ether modified resin, modified nano silicon dioxide and the like are taken and mixed to obtain a resin glue solution; impregnating glass fabric in the resin glue solution to obtain a prepreg; laminating prepregs, and covering copper foil for hot pressing; the polyphenyl ether modified resin comprises epoxy resin, diallyl cyanate and fluorine-containing polyphenyl ether resin prepared by reaction of polyphenyl ether, bisphenol AF and benzoyl peroxide; the modified nano silicon dioxide is prepared by reacting allyl glycidyl ether, vinyltriethoxysilane and phenyltris (dimethylsiloxane) silane, then grafting with a phosphorus-containing intermediate to prepare a modified additive, and grafting with nano silicon dioxide, and the phosphorus-containing intermediate is prepared by reacting phenylphosphoryl dichloride and eugenol. The copper-clad plate with high flame retardance, high peel strength, heat resistance and low dielectric constant is prepared.

The invention discloses an ultralight high-impact-resistance photovoltaic module based on a 3D reticular reinforced structure and a preparation method thereof. The problem of contradiction between light weight and impact resistance of a traditional module is solved through a three-layer collaborative innovative design. According to the gradient enhanced front plate of the photovoltaic module, the PC layers and the ETFE layers are alternately laminated, and the 3D spiral gradient glass fiber net is embedded in the gradient enhanced front plate, so that the gradient dispersion of impact stress is realized, and the impact resistance of the edge is improved; the aramid fiber reinforced adhesive film layer wraps the battery piece, absorbs impact energy and inhibits crack propagation; the bionic honeycomb backboard is composed of a Nomex honeycomb core and a carbon fiber surface layer, and unloading is achieved through a honeycomb structure. Compared with an existing photovoltaic module, the ultralight high-impact-resistance photovoltaic module has higher light transmittance and more excellent impact resistance, the hygrothermal aging light transmittance is only reduced by 0.23%, and the ultralight high-impact-resistance photovoltaic module has ultrahigh impact resistance under the ultralight condition that the surface density is smaller than or equal to 4 kg / m.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.