133results about How to "Improve heat radiation efficiency" patented technology

The invention discloses a method for preparing a micron / nano structure on the surface of a metal material by using femtosecond laser. The preparation steps thereof are as follows: after mechanical grinding and polishing are carried out on the surface of the metal material, then the surface is ultrasonically washed by ionized water; a femtosecond laser technique is adopted: in the air environment, a 10*micro objective is used for vertically focusing an incident femtosecond laser pulse on the surface of the material; the radius of a laser beam at the focus position is 5 microns; besides, the surface of the material is adjusted to the position which has 10 to 250 microns to the focus plane of the objective along the reverse direction of the beam, thus being capable of generating the micron / nano structure on the surface of the metal material by inducing. The method has the advantages of simple technique, being convenient and practical, no pollution and being capable of improving and enhancing the thermal radiation efficiency of the material in a broad spectrum range.

The invention relates to a surface heating light source, comprising a first electrode, a second electrode and a carbon nano-tube film; the first electrode and the second electrode are arranged on the carbon nano-tube film; the first electrode and the second electrode have a certain distance and electrically contact with the surface of the carbon nano-tube film; the carbon nano-tube film internally comprises carbon nano-tubes which enwind each other. The invention also relates to a preparation method used for preparing surface heating light source, comprising the steps as follows: carbon nano-tube raw material is provided; the carbon nano-tube raw material is added in solvent and carries out flocking disposal, thus gaining a carbon nano-tube floceulent structure; the carbon nano-tube floceuelent structure is separated from the solvent and shapes the carbon nano-tube floceulent structure so as to gain a carbon nano-tube film; the first electrode and the second electrode are provided; the first electrode and the second electrode are intermittently arranged on the surface of the carbon nano-tube film and form electric contact on the surface of the carbon nano-tube, thus gaining a surface heat light source. The invention also relates to a method used for heating the article by adopting the surface heat light source and comprises the steps as follows: an article to be heated is provided; the article is provided with a surface; the carbon nano-tube film in the surface heat light source is arranged closely to the surface of the article to be heated; voltage is applied to the electrodes in the surface heat light source so as to heat the article.

A computer fan assembly mechanism having filtering and sterilizing functions comprises a fan body. An air passageway is formed at a hollow portion in the fan body. The air passageway has an intake and an air vent, which corresponds to the fan, is located on the fan body. A photo-catalytic net is disposed at the intake. One or more UV LEDs are disposed on the air passageway to illuminate the photo-catalytic net. Through illumination of the UV LED onto the photo-catalytic net, the object of filtering and sterilizing air passing the intake can be accomplished.

The invention discloses a dew point temperature controlling method and device. The method comprises the following steps that the indoor environment temperature, the indoor environment humidity and the cold surface temperature are detected in real time, and the dew point temperature is calculated according to the indoor environment temperature and the indoor environment humidity; under a refrigerating mode, if the indoor environment humidity is larger than or equal to a first humidity threshold, a fan is only started to conduct dehumidification till the indoor environment humidity is smaller than a second humidity threshold or the indoor environment temperature is lower than a first set temperature, the fan is closed, wherein the second humidity threshold is smaller than the first humidity threshold; and if the indoor environment humidity is smaller than the first humidity threshold, a capillary network cold water valve and the fan are controlled to be started or closed according to the indoor environment temperature, a first temperature return difference compensating section, the dew point temperature and the cold surface temperature, so that the indoor environment temperature is adjusted to be maintained within the first temperature return difference compensating section. By means of the dew point temperature controlling method, unified control over a refrigerating system and a dehumidifying system can be achieved, the dew formation of a capillary network is effectively avoided, and the refrigerating requirement under a high-temperature and high-humidity environment is not affected.

The invention relates to a heating device and a manufacturing method thereof. The heating device comprises a first electrode, a second electrode and a heating element, wherein the first electrode and the second electrode are arranged at interval; the heating element comprises a first substrate, a second substrate, a first bonding layer, a second bonding layer and a carbon nanotube structure; the carbon nanotube structure is arranged between the first substrate and the second substrate and is combined with the first substrate and the second substrate respectively through the first bonding layer and the second bonding layer; and the carbon nanotube structure is electrically connected with the first electrode and the second electrode.

A light emitting device package and a back light unit for liquid crystal display using the same wherein a fan is used to forcibly cool an LED package and a back light unit for LCD to increase the heat radiation efficiency and to prevent the degradation of the device.

A lighting device is provided. The lighting device includes: a light source module mounted on a substrate; a lens unit provided on the light source module and including an accommodating groove accommodating the light source module; a housing unit accommodating the lens unit therein to protect the lens unit from an outside; a supporting unit fixed to the substrate and including a coupling hole having the housing unit coupled thereto to thereby support the housing unit; and a height adjustment unit allowing the housing unit to be vertically-movably coupled to the supporting unit and adjusting a height of the lens unit such that the height of the lens unit is varied.

A light source module includes a light emitting diode and a wiring board. The light emitting diode (LED) chip group includes LED chips for red, green and blue colors. A plurality of the LED chip groups are mounted on the wiring board. A surface on one side of the wiring board is a device forming surface including the plurality of the LED chip groups, an external connecting terminal for leading out electrodes, and a wiring pattern for electrical connection between the LED chip groups and the external connecting terminal. A surface on the other side of the wiring board is a heat radiating surface which is thermally connected to the device forming surface and operative to radiate heat generated at the device forming surface to the exterior.

The present invention relates to a light emitting diode module, as well as a backlight assembly and a display device including the same. The light emitting diode module according to an exemplary embodiment of the present invention includes a printed circuit board having a plurality of junction holes, a plurality of light emitting diodes having a light emitting portion for emitting light and a lead portion with one end electrically connected to the light emitting portion and the other end positioned in a corresponding junction hole, and a junction member filled in the corresponding junction hole in which the lead portion is positioned.

In a TFT including on the surface side of a substrate a channel region opposed to a gate electrode, with a gate insulating film provided therebetween, and a source-drain region connected to the channel region, and a TFT including a source-drain wiring layer electrically connected to the source-drain region, and a gate wiring layer electrically connected to the gate electrode, at least one component part composed of a conductive film or a semiconductor film, among the component parts of each TFT, is provided with a heat-radiating extension extended from the component part itself for enhancing the heat-radiating efficiency from the component part.

Disclosed is a light emitting module capable of representing improved heat radiation and improved light collection. there is provided a light emitting module. The light emitting module includes a metallic circuit board formed therein with a cavity, and a light emitting device package including a nitride insulating substrate attached in the cavity of the metallic circuit board, at least one pad part on the nitride insulating substrate, and at least one light emitting device attached on the pad part.