5701results about How to "Increase cooling area" 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 present invention is a symmetrical heat sink module with a heat pipe for spreading of heat, comprising a first and a second sets of fins each with a first and a second heat dissipation areas where the first and the second heat dissipation areas each comprises corresponding concave parts; a curved heat pipe between the concave parts with the bottom being convex out of the bottom of the first and the second sets of fins; and a base at the convex bottom of the curved heat pipe. Accordingly, the first and the second sets of fins are corresponding to each other so that the heat sink module obtains larger heat dissipation area and the function of two-side dissipation to achieve better heat dissipation efficiency.

An arrangement of radiators (2–6) for a utility vehicle, e.g., an agricultural tractor, comprising three or more cooling radiators which together define a chamber (7), optionally with some of the walls formed by perforated plates instead of radiator elements. One of the radiator elements may be pivotally mounted with respect to the others to provide access to the chamber. The arrangement of radiators may be mounted on a common support (1).

A cooling device includes a cooling panel wherein a passage is formed by bonding together a bottom heat radiation plate having a groove formed therein and a top heat radiation plate, and a circulation pump circulating refrigerant within the passage. The top heat radiation plate is provided with an outlet port through which the refrigerant flows out from the passage to the circulation pump and an inlet port through which the refrigerant flows in from the circulation pump to the passage. The circulation pump is fixed onto the top heat radiation plate of the cooling panel so that the suction port and discharge port are aligned with the outlet port and inlet port, respectively.

An LED lighting apparatus dissipating heat by fanless ventilation including a heat radiation housing that has a heat radiation frame provided around the body of the heat radiation housing and spaced apart from the body and also has linear heat radiation fins configured to minimize interference to air flow and to maximize the heat radiation area, thereby expanding the heat radiation area significantly and thus dissipating heat much more effectively through ventilation by natural convection without a blowing fan, and consequently, extending the life span of the LED lighting apparatus and improving its quality. The LED lighting apparatus comprises a light source part including at least one LED and a PCB used to mount the LED; and a heat radiation housing provided at the upper portion thereof with a terminal part, receiving and supporting the light source part and dissipating heat.

An LED light bulb includes a heat conductive post coupled with a plurality of LED circuit boards. The LED circuit boards are electrically connected to a first current converged board and a second current converged board. The first and second current converged boards also are connected respectively to a first conductive wire and a second conductive wire to converge current of the LED circuit boards. The heat conductive post further is connected to a heat sink which has a wiring aperture threaded through by the first and second conductive wires and a coupling portion coupled with a lampshade. The invention also includes an electric connection structure coupled with the heat sink in an insulation manner. The electric connection structure is electrically connected to the first and second conductive wires and connected to a power source to supply electric power through the first and second conductive wires.

The instant disclosure relates to a light bulb, which includes a base, a conducting cap arranged on one end of the base, a heat-dissipating member disposed on the opposite end of the base, and a lamp cover. The heat-dissipating member has a wedged structure, and a plurality of inclined surfaces are formed adjacently thereon. A plurality of LEDs is disposed on the inclined surfaces, and the lamp cover is arranged over the wedged structure and the LEDs. The instant disclosure uses the LEDs to replace tungsten filament as the light sources, and arranging the LEDs on the wedged structure of the heat-dissipating member. Thereby, the light bulb can have higher heat-dissipating rate.

An LED illumination device includes a lamp housing, a heat sink, a cooling fan, and a light source. The heat sink, the cooling fan and the light source are received in the lamp housing. The heat sink includes a base and a plurality of fins extending from the base. The light source is attached to the base of the heat sink. The cooling fan causes ambient air to enter into the lamp housing and flow through the heat sink. A plurality of air-disturbing plates extends from the lamp housing towards the heat sink. The air-disturbing plates disturb the air in the lamp housing and guide the disturbed air into air passageways defined between adjacent fins of the heat sink.

A heat dissipating device assembly includes a heat receiver, a heat sink defining two opposite ends and a plurality of channels formed between the two opposite ends, a fin member cooperating with the heat receiver to enclose the heat sink except the two opposite ends, a plurality of heat pipes connecting the heat receiver with the fin member, and a fan provided adjacent one of the two opposite ends for creating airflow to flow through the channels of the heat sink. The fin member includes a plurality of fins formed at the outer surface thereof for increasing heat dissipating surface of the heat dissipating device assembly.

A heat sink assembly includes a heat sink (10), a mounting frame (20) for mounting the heat sink to an electronic component (60), and a grease cover (40). The heat sink includes a base (12) on which thermal grease (16) is spread. The mounting frame includes a body (22) defining an opening (24) for extension of the electronic component therethrough to contact the base. The body includes longitudinal and lateral beams (25, 27) surrounding the electronic component. A plurality of fasteners (26) is formed on the longitudinal beams and engaged in cutouts (16) defined in the base, respectively. The grease cover is detachably attached to the mounting frame, and includes a main portion (42) covering the opening of the mounting frame and the thermal grease, and an ear (44) extending from the main portion beyond one border of the mounting frame for facilitating operation of the grease cover.

A heat dissipating structure of an LED circuit board and a device applied in an LED tube which comprises an LED circuit board having a plurality of soldering points. The soldering points of the LED circuit board are covered a coating layer including Nanoparticles and a bonding agent. Accommodating the LED circuit board covering the coating layer in an LED lamp tube to accelerate dissipating the heat of the LED circuit board by the coating layer having the characters of high emitting rate, temperature resistance, and conductivity insulation. On the other hand, for the coating layer can increase the contacting areas of the soldering points with the air to enlarge the heat dissipation area of the LED circuit board to accelerate dissipating the heat.

The invention discloses a production method of a fine-denier porous POY black yarn. The method comprises the following steps of: drying semi-dull slices, drying black masterbatch, adding the slices and the black masterbatch material into a screw extruder, fusing the added materials in the screw extruder, respectively processing the fused materials in a metering pump and a spinning beam, spinning on a pack, cooling the materials by lateral blowing, applying oil on strands, processing the strands in draw-off godets GR1 and GR2, winding and shaping, and inspecting products. The method is characterized in that the step of drying the black masterbatch comprises the following sub-steps of: based on a continuous drying mode, firstly, adding the black masterbatch into a crystallization and drying tank, introducing heated dry air from the lower part of the crystallization and drying tank, and blowing out the heated dry air from the top of the crystallization and drying tank so as to dry the black masterbatch, wherein the drying time is 2 hours, the dried black masterbatch falls into an intermediate material storage bin for storage under the crystallization and drying tank, and the black masterbatch is further injected by a masterbatch injector under the intermediate material storage bin. The production method of the fine-denier porous POY black yarn has high masterbatch spinnability and better cooling effect, and can improve the oil application uniformity of spinning cakes and the productivity.

A heat sink includes a base and a plurality of spaced parallel fins arranged on the base. Adjacent fins define a plurality of passages there between. Each passage includes an inlet and at least one outlet. The base and the fins made separately, and the fins is thin, such that amount of the fins arranged on the base increases. And the fins are disposed on the base alternately or/and staggered such that the inlet and the outlet are wider than a middle part of the passage to lower airflow resistance thereat. Thus, the heat sink has large heat dissipating area and low airflow resistance synchronously.