370results about How to "Helps dissipate heat" patented technology

The invention discloses an LED (Light Emitting Diode) lamp tube, which comprises a glass tube, lamp caps arranged at two ends of the glass tube as well as an LED lamp strip arranged in the glass tube, wherein the inner wall of the glass tube is coated with a light increasing and heat radiating film; and the LED lamp strip is fixedly adhered to the inner wall of the glass tube through a high heat conduction bonding adhesive. The light increasing and heat radiating film is an aluminum-coated layer, or a frosted heat conduction light increasing adhesive layer or a nano adhesive layer capable of increasing light and radiating heat. The LED lamp strip comprises a substrate, wherein a plurality of LED light sources are welded on the substrate, or an integrated light source consisting of an LED chip is packaged on the substrate; and a driving power supply module is also arranged on the LED lamp strip. According to the LED lamp tube disclosed by the invention, the light emitting efficiency, the light emitting angle and the illumination area of the LED lamp tube are increased; the problems of glare and point light existing in the LED lamp tube are solved; heat generated by an LED is transmitted to the whole glass tube through the substrate of the LED, so that the heat radiating area is greatly increased and the heat increasing speed of the LED lamp tube is increased; the LED lamp tube can be applied to a lamp holder of a traditional fluorescent lamp, and thus the generality of the LED lamp tube is greatly improved; and the replacement and use costs are reduced.

The invention discloses an optical engine for time-sharing work of P and S light, which comprises at least two light sources, wherein at least one light source is converted into the S light, and the other light sources are converted into the P light. The S light and P light enter an imaging LCD light valve modulator in a time-sharing mode, and the imaging LCD light valve modulator makes the S light and P light pass through an analyzer by time-sharing incidence through image processing, and present the same plane or stereoscopic image. The at least two light sources pass through at least two conversion elements of a PBS converting mechanism and conversion elements, and the converted etendue is constant, namely, the P light or the S light emitted by the two light sources is input in the same plane area. The at least two light sources comprise an LED or a laser semiconductor light source or a VHP or a metal halide light source. The S light and the P light enter the imaging LCD light valve modulator in the time-sharing mode, pass through the analyzer by time-sharing incidence and can present the same plane or stereoscopic image. Therefore, the conversion loss of polarized light of the light sources is minimized, the lighting effect is improved, the slot time of the light sources can be utilized, the instantaneous power of the light sources is increased, and the optical output brightness is improved.

The present invention is a double-purpose deformable welding fixture for welding linear and curved weld seams, and the fixture has linear welding slot and curved welding slot integrated onto one pedestal to reach the double-purpose aim. The double-purpose deformable welding fixture consists of one pedestal height difference structure comprising one thickness difference step and one height regulating tab for fitting different welding thickness, and one clamping screw mechanism comprising right and left pressing boards with screw holes and corresponding cap screws. It can regulate clamping force and control welding deformation by means of novel flexible location mode, and is suitable for linear and curved welding of common steel plate, high strength steel plate, aluminum plate, etc of different sizes.

The invention discloses a grinding wheel special for a rail grinding train and a manufacturing method of the grinding wheel, and relates to the technical field of manufacturing of grinding wheels. Thegrinding wheel special for the rail grinding train comprises, by weight, 25-35 parts of modified zirconia alumina, 35-55 parts of modified brown fused alumina, 9-15 parts of mixed resin, 3-5 parts ofaluminum oxide hollow balls, 1.5-8 parts of pyrite powder, 1-6 parts of cryolite powder, 0.5-5 parts of barium sulfate powder, 0.5-4 parts of calcium carbonate powder, 0.5-4 parts of graphite powder,3-6 parts of copper powder and 1-8 parts of fiber-reinforced materials, wherein the modified zirconia alumina and the modified brown fused alumina are fused alumina zirconia and brown fused alumina which are dried after being soaked in a KH550 alcohol solution with the concentration of 3-10wt%. The grinding wheel special for the rail grinding train is high in strength, good in tenacity, good in self sharpness and high in grinding capacity; blockage is unlikely to occur in the grinding process; a steel rail is unlikely to be burnt in the polishing process; and the steel rail has good surface quality after being polished by the grinding wheel.

The invention relates to a truck tire, in particular to a tire tread pattern structure of a truck tire. A tire tread of a cargo truck comprises a central longitudinal circumferential pattern groove which is arranged at the position of a longitudinal center line of the tire tread and enables the tire tread to be evenly divided into two symmetrical parts in a left-right mode. Side part pattern blocks and tire shoulder pattern blocks are sequentially arranged on two sides of the central longitudinal circumferential pattern groove form interior to exterior. The side part pattern blocks and the tire shoulder pattern blocks are separated by an auxiliary longitudinal circumferential pattern groove. Each two adjacent side part pattern blocks along the circumferential direction are separated by an auxiliary pattern groove. The central longitudinal circumferential pattern groove and the auxiliary longitudinal circumferential pattern groove are respectively in a wave shape. Two ends of each auxiliary pattern groove are respectively communicated with the central longitudinal circumferential pattern groove and the auxiliary longitudinal circumferential pattern groove. The side part pattern blocks on two sides of the central longitudinal circumferential pattern groove are in point symmetry and arranged in a vertically staggered mode. The tire shoulder pattern blocks are integral pattern blocks. According to the tire tread of the cargo truck, mixed patterns are adopted. The tire tread of the cargo truck has sufficient braking force and good operational properties, and is attractive.

A microlithographic projection exposure apparatus has a mirror array having a base body and a plurality of mirror units, each of which comprises a mirror and a solid-state articulation, which has at least one articulation part that connects the mirror to the base body. A control device makes it possible to modify the alignment of the respective mirror relative to the base body. Mutually opposing surfaces of the mirror and of the base body, or of a mirror support body connected to it, are designed as corresponding glide surfaces of a sliding bearing.

The invention discloses a high-voltage and low-voltage wiring split-type high-voltage cabinet, which includes a cabinet body, a fan installation box is fixed on the top of the cabinet body, and a component installation plate is arranged inside the cabinet body, and one side of the component installation plate is below There are high-voltage line branching structures and low-voltage line branching structures arranged up and down, and a distance adjustment structure is provided between the high-voltage line branching structure and the low-voltage line branching structure, and the structures of the high-voltage line branching structure and the low-voltage line branching structure are consistent , and the high-voltage line branching structure includes a movable rod located in the cabinet, a pressure rod is arranged above the movable rod, and symmetrically arranged L-shaped connecting rods are fixed at both ends of the pressure rod. The present invention not only can separate the high-voltage wiring and the low-voltage wiring through the combined use of the high-voltage line branching structure, the low-voltage line branching structure, and the distance adjustment structure, but also the wiring is orderly and tidy, thereby avoiding the messy winding of the high-voltage and low-voltage wiring and reducing the fire risk.

The invention discloses a scratch-resistant black heat transfer printing ink and a preparation method thereof. The printing ink comprises the following components in percent by weight: 25-35 percent of epoxy resin, 5-8 percent of phenolic resin, 3.5-5.0 percent of a curing agent, 45-60 percent of a heat conducting filling material, 10-12 percent of a coloring agent and 0.5-0.7 percent of an additive. The printing ink has a rigidity larger than 6 H after being roasted and pressed to meet the scratch-resistant requirement of Al-based copper-clad plate production and manufacturing, has the thermal conductivity reaching 1.5 W to facilitate the radiating of an Al-based copper-clad plate compared with an anodic oxidation film and a PET protecting film, and has a maximum bearing temperature of 230 DEG C and maximum pressure of 100 kg/cm<2>, and therefore, a novel method for using the heat transfer printing ink is found, the radiating function of the Al-based copper-clad plate is not affected while the aluminium surface is prevented from scratching. The heat transfer printing ink is a new measure for protecting the aluminium surface of the Al-based copper-clad plate.

The invention discloses a combination device with a radiating device, wherein the radiating device is composed of a plurality of cylinder bodies made from heat conduction materials, one end of each of the plurality of cylinder bodies is combined with a heating element to be processed so as to appear in a radial cone solid structure, an auxiliary radiator is further arranged on the radiating device to increase the superficial heating area; the radiating device and the auxiliary radiator are made by combining components which are made of various materials and have different appearances and structures, wherein the components are made by various, the changes on the appearance and the structure can enlarge the superficial area contacting with the air, thereby being helpful for radiating; and the composite of a plurality layers of heat conduction material can contribute to the heating effect. According to the radiating device, the heating convection space is large with no blind angle, and the heating effect is good, so that the heating elements can be protected so as not to be damaged.

The invention discloses a multi-angle heat dissipation power distribution cabinet, which relates to the technical field of power equipment, and mainly aims to solve the problem of poor heat dissipation effect of an existing power distribution cabinet. The cabinet comprises a cabinet body and a heat dissipation unit used for dissipating heat of elements in the cabinet body, ventilation nets are installed on the two side walls of the cabinet body, the heat dissipation unit comprises a first motor, a rotary disc, a movable rod, a heat dissipation pipe, a first connecting rod and a heat dissipation plate, and an installation plate used for installing the elements is installed on the lower portion of an inner cavity of the cabinet body in a sliding mode; a damping unit is connected between theinstallation plate and the bottom of the cabinet body, the damping unit comprises a second connecting rod, a rack, a gear, a threaded rod, a supporting plate and a damping spring, a heat dissipation unit is arranged to drive a heat dissipation plate and a heat dissipation pipe to swing around the top end of a movable rod, the heat dissipation angle is continuously changed, and the heat dissipationrange is expanded. The heat dissipation plate is driven by the first connecting rod to swing around the end connected with the movable rod, so that the heat dissipation angle of the heat dissipationplate is further continuously changed; and the damping units are arranged, so that the damping effect is better.

The invention relates to an air conditioner, comprising a main body, a filter, a cleaning device, a processing device, a control part and a guiding device. The main body is provided with an air suction part and an air exhaust part; the filter is arranged on the main body and used for filtering impurities in the air absorbed by the air suction part; the cleaning device is used for cleaning the impurities in the filter; the processing device is communicated with the cleaning device and is used for collecting impurities and exhausting air after absorbing the air and the impurities; the control part is installed on the main body; and the guiding device is used for guiding the air exhausted from the processing device to the external direction of the control part. According to the invention, thedamage of the control part caused by the air exhausted from the processing device can be prevented.

The invention discloses a preparation method of an AlGaN-based 3D flip-chip MSM array ultraviolet detector, and belongs to the technical field of semiconductors; the preparation method comprises the following steps of (1) growing an AlXGa1-XN ultraviolet light absorption layer on a substrate in an epitaxial growth manner; (2) performing photoetching on the AlXGa1-XN ultraviolet light absorption layer to form a groove; (3) depositing an interdigital electrode in the groove of the AlXGa1-XN ultraviolet light absorption layer; (4) polishing the back surface of the substrate; (5) manufacturing a substrate circuit by adopting a layout on the substrate; (6) manufacturing a welding micro-convex point on the substrate circuit; and (7) enabling the ultraviolet detector to be inverted, and enablingpad regions at the two ends of the interdigital electrode to be connected with the micro-convex point in a welding mode. The method is simple in manufacturing process, mature in flip welding technology, low in cost and easy to implement, and large-scale popularization can be realized; and the interdigital electrodes are deposited in the grooves in the absorption layer, so that the migration time of the photo-generated carriers is shortened, the migration speed and the collecting efficiency of the carriers are improved under the action of an external electric field, the sensitivity of the detector is improved, and the response time is shortened.

The invention provides a deep drain region-equipped lateral double-diffused metal oxide composite semiconductor field effect transistor (LDMOS) and a manufacturing method thereof. According to the LDMOS device, a silicon carbide material is combined with a silicon material, and a silicon epitaxial layer is formed on a silicon carbide substrate through a heteroepitaxy technology or a bonding technology; and by adopting a deep drain region structure, the lower end of the drain region can deep into the silicon carbide substrate. Silicon carbide is a wide band-gap semiconductor and has relativelyhigh critical breakdown electric field, so that the deep drain region structure can introduce the high electric field peak value in the drain region to silicon carbide, thereby optimizing the longitudinal electric field distribution of the device, finally enabling breakdown to occur close to the drain region silicon/silicon carbide interface; therefore, the breakdown voltage of the device is improved, and the extreme relation between the breakdown voltage and the specific on-resistance in the body silicon LDMOS device can be improved; and in addition, compared with the silicon material, the silicon carbide material is relatively high in heat conductivity, and by taking the silicon carbide material as the substrate, heat dissipation of the device can be facilitated, so that the silicon carbide material can be used for manufacturing a power device which works in a high temperature condition.

A stereo - stack type of packaging structure is prepared as stacking the first and the second elements back to back together , utilizing the rewiring technique to span - wire metal pads the first and the second element surface to edges of the first and the second elements , using a conductive column to connect through electricity of top and bottom for carrying out signal transmission between two elements , then utilizing conductive lug on the second element and printed circuit to carry out signal transmission .