483results about How to "Avoid heat dissipation" patented technology

A leadframe that is configured to be used with an electronic device, e.g., light emitting diode (LED), includes a heat sink supporting ring for supporting a heat sink. An outer frame is spaced apart from the heat sink supporting ring, and encloses the heat sink supporting ring. At least one supporting lead connects the heat sink supporting ring and the outer frame. A separated lead is extended from the outer frame toward the heat sink supporting ring, and is spaced apart from the heat sink supporting ring. A package body that may be formed by an injection molding after a heat sink is inserted into the leadframe.

The present invention relates to the field of thermal insulation devices, and particularly to a foldable thermal insulation case. It includes a case body, a case lid covered on the case body and a liner provided inside the case body. The liner includes a bottom plate corresponding to a bottom wall of the case body and side plates corresponding one to one to sidewalls of the case body. There are a collapsed state and an unfolded state for the liner. When the liner is in the unfolded state, each of the side plates stays upright around the bottom plate and is jointed with the bottom plate; in this way, the individual side plates and the bottom plate support the case body, and the case body is unfolded. When the liner is converted from the unfolded state into the collapsed state, that is, the side plates are bent downwards with respect to the bottom plate and stacked on the bottom plate, the case body may be folded downwards, and the size of the thermal insulation case is reduced after the case body is folded. Therefore, the invention enables the thermal insulation case to be folded, and the size of the thermal insulation case to be reduced effectively.

A power supply device is provided that includes a battery module 3 and a cooling mechanism. The battery module is composed of a plurality of batteries 20 arranged side by side. The cooling mechanism cools the batteries 20. A thermally-insulating member 70 is arranged on a part of a battery module surface, and thermally insulates heat generated from the batteries 3. This power supply device can reduce the temperature unevenness ΔT.

The invention discloses a liquid cooling temperature control and management method of a power lithium ion battery. The liquid cooling temperature control and management method comprises the steps of: 1) acquiring temperature and current; 2) obtaining a highest temperature value, a lowest temperature value, greatest temperature difference and liquid cooling system inlet and outlet temperature difference; 3) judging whether the current is large or not and computing a working state 1; 4) judging whether the temperature of the battery is high or not, computing a working state 2; 5) judging whether temperature difference of the battery is too great or not and computing a working state 3; 6) judging whether the outlet temperature of a battery pack is too high or not and computing a working state 4; 7) judging whether the temperature difference of circulating medium at the inlet and outlet of the battery pack is too great or not and computing a working state 5; and 8) comparing the computed working state 1, the working state 2, the working state 3, the working state 4 and the working state 5 to obtain a working state with the best heat dissipation effect for setting. The liquid cooling temperature control and management method of the power lithium ion battery solves the problems that the temperature of the battery is too high and the local temperature difference is too great, and has the beneficial effects that the performance of the battery is improved and the service life of battery is prolonged.

Provided are resistive random access memory (ReRAM) cells including resistive switching layers and thermally isolating structures for limiting heat dissipation from the switching layers during operation. Thermally isolating structures may be positioned within a stack or adjacent to the stack. For example, a stack may include one or two thermally isolating structures. A thermally isolating structure may directly interface with a switching layer or may be separated by, for example, an electrode. Thermally isolating structures may be formed from materials having a thermal conductivity of less than 1 W/m*K, such as porous silica and mesoporous titanium oxide. A thermally isolating structure positioned in series with a switching layer generally has a resistance less than the low resistance state of the switching layer. A thermally isolating structure positioned adjacent to a switching layer may have a resistance greater than the high resistance state of the switching layer.

The present invention discloses a means for utilizing the heat source with efficiency at least comprising: a container, which is settled at the center of said means; a sand, which is settled within said means and outside said container; a hot gas channel, which is interconnected with said container and is covered with said sand; a collecting casket, which is settled on the bottom of said container and is used to collect the ash of the charcoal; a casket chamber, which could allocate said collecting casket within; a storage room, which is sited below said casket chamber; a plurality of rolling wheels, which is sited on the bottom of said means that could make said means moving freely; said hot gas channel could be covered by means of the sand to avoid the heat dissipation of the heat inside the heat gas channel while keeping high temperature which could make use of the heat resource and thus achieves the effects of baking, temperature-maintenance, cover toast as well as warm-keeping on the same time.

A light strip has a flexible enclosure extruded around a pair of conductors. The enclosure contains a lighting assembly with one or more flexible substrates that are each populated with a plurality of light circuits. The substrates are spaced from the pair of conductors. The lighting assembly has a plurality of connecting devices for electrically coupling the lighting assembly to the pair of conductors

A process for manufacturing an ophthalmic lens containing a Fresnel microstructured surface inside the lens. The Fresnel lens is injection molded with a mold insert having a heat conductivity lower than the thermoplastic material used to form the Fresnel lens. A second thermoplastic material is overmolded to the Fresnel lens to cover and protect the microstructured surface. The mold insert is made from Nickel or thermoplastic. The resulting lens includes two layers having different refractive indices. The Fresnel lens is made from polycarbonate while the overmold is made from PMMA or TPU.

The invention relates to a lifting-free borehole bottom rope freezing coring drilling tool and method. The lifting-free borehole bottom rope freezing coring drilling tool comprises a salvaging device, an inner pipe assembly and an outer pipe assembly. According to the coring method, liquid nitrogen is fed into a liquid nitrogen chamber of the salvaging device; the salvaging device is fed into an outer pipe once the roundtrip is ended; the salvaging device is connected with the inner pipe assembly so as to feed the liquid nitrogen into a freezing chamber; and the liquid nitrogen absorbs heat and is gasified so as to freeze the hydrate rock core. By adopting the lifting-free borehole bottom rope freezing coring drilling tool and method, the liquid nitrogen can be prevented from being gasified due to heat dissipation and vibration during drilling, so that the freezing efficiency of the liquid nitrogen can be improved. According to the lifting-free borehole bottom rope freezing coring drilling tool and the coring method, a small drill bit is arranged on the inner pipe assembly and is driven by a large drill bit to drill together, so as to obtain the rock core with required dimension; a drill column does not needed to be integrally lifted from the borehole, so that the lifting-free continuous drilling and coring can be realized; and the small drill bit and a clamp spring seat are disassembled during sampling, a half-closing pipe is drawn out of a rock core pipe together with the rock core, and a rock core sample is stored in a liquid nitrogen storage tank or a high-pressure container.

A low temperature PEM fuel cell system is prevented against freezing after a shutdown in sub-freezing conditions. The fuel cell can be heated by filling an anode chamber with a fuel (the hydrogen or a hydrogen-rich reactant gas) and generating the hydrogen on a cathode. A defined amount of air is supplied to the cathode chamber. The fuel cell is locally heated to a defined temperature by the exothermic chemical reaction between the hydrogen and the oxygen on a cathode catalyst. Once the fuel cell is warmed to the defined temperature, the hydrogen generation on the cathode and the air supply can be discontinued. Water formed at the cathode can be evaporated by means of pre-heating of an air flow. This procedure provides plain saturation of the cathode with the hydrogen and, as result, mild, safe heating the fuel cell without use of an additional external power supply.

The invention relates to a cryogenic pulverizer and its working method, comprising a motor, a hopper, a material pre-cooling room, a material freezing room, a low-temperature mill, an induced draft fan, a cyclone separator, a bag filter, a liquid nitrogen tank and a compressor. Machine, the cryogenic pulverizer of the present invention and its working method, use liquid nitrogen to cool and freeze the material to be pulverized so as to achieve the brittleness required for the pulverization of the material, rich in resources and easy to separate, colorless, odorless and non-toxic gas, to avoid In addition, nitrogen is also a good anti-oxidant, which can prevent the finished powder material from being oxidized and deteriorated, and realize the recycling of nitrogen. In addition, the cooling capacity of the finished powder material is fully utilized to reduce energy consumption. save resources.

The present invention relates to an electronic device for providing improved heat transporting capability for protecting heat sensitive electronics and a method for producing the same. The present invention also relates to uses of the electronic device for various applications such as in LED lamps for signalizing, signage, automative and illumination applications or a display apparatus or any combinations thereof.

To improve performance of a freezing cycle by releasing heat from a pipe for heat release using a front part of a side face of an outer package and to improve heat insulating performance by extending a vacuum heat insulating material to a back face side of the outer package, in a refrigerator using the vacuum heat insulating material. In the refrigerator, a package body 1 is structured by providing the vacuum heat insulating material 31 on a back side of the side face of the outer package 2 and filling a foam heat insulating material 3 between the outer package 2 and an inner package 4, a dew preventive pipe 22 of the freezing cycle is provided on a back side of a front face flange of the outer package 2 and the heat releasing pipe 20 of the freezing cycle is provided on the back side of the side face of the outer package 2. The heat releasing pipe 20 is provided so that it vertically extends at a front part of the side face of the outer package 2 and the vacuum heat insulating material 31 is provided so that it extends to the back face side of the outer package 2 from behind the heat releasing pipe 20.

A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and a nip formation assembly contacting an inner circumferential surface of the fixing rotator. An opposed rotator presses against the nip formation assembly via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator, through which a recording medium is conveyed. A support, disposed opposite the inner circumferential surface of the fixing rotator, supports the nip formation assembly. A heater, disposed opposite the inner circumferential surface of the fixing rotator, heats the fixing rotator. A reflector, disposed opposite an outer circumferential surface of the fixing rotator, reflects heat radiated from the fixing rotator onto the fixing rotator. The reflector spans a circumferential span of the fixing rotator where the fixing rotator is spaced apart from the support with a decreased interval therebetween.

A heat dissipating fan includes a fan housing having an outer frame portion. An air inlet and an air outlet are respectively defined in two ends of the outer frame portion. A hollow motor casing is formed in and integral with the outer frame portion. An inner-rotor-type motor is mounted in the motor casing and includes a rotor and a stator. The rotor is rotatably received in the stator and includes a shaft and a magnetic element. The shaft extends beyond the motor casing. The magnetic element is coupled with the shaft and faces the stator. At least one impeller is coupled to the shaft and located outside the motor casing. A circuit board is electrically connected to the stator.

A silicone composition contains I) a shrink additive and II) a curable polyorganosiloxane composition. A method for fabricating an electronic device includes the steps of: 1) interposing the silicone composition between an IHS and a substrate, 2) curing the curable polyorganosiloxane composition to form a cured silicone product, and 3) removing the shrink additive during and/or after step 2), thereby compressing the IHS to the substrate. Compressing occurs as thickness of the cured silicone product decreases, as compared to thickness of the silicone composition interposed in step 1).

Disclosed are a wavelength conversion device and a light emitting device. The wavelength conversion device includes a wavelength conversion layer used for absorbing excitation light and generating converted light; a box having a first area used for transmitting the excitation light to the wavelength conversion layer and a second area used for transmitting the converted light, and further including an air outlet and an air inlet; a conduit, disposed outside the box and used for connecting the air inlet and the air outlet, so as to seal with the box the wavelength conversion layer in the box; a heat exchanger, used for decreasing a gas temperature in the conduit; and a gas circulation device, disposed in sealed space encircled by the box and the pipe conduit, and used for driving exchange between gas in the box and gas in the conduit. The wavelength conversion device achieves both dust prevention and heat dissipation.

The present invention relates to a diffusion structure for illumination light source, comprises: a substrate installed with at least one light emitting diode; a heat dissipating base, the periphery thereof is installed with at least one heat dissipating fin; a lamp head; a lower cover installed with at least one heat dissipating hole; and an upper cover, one end thereof is processed with an etching treatment by a chemical agent so the surface thereof is formed to an irregular concave-convex shape thus the lamp head is provided with more projection angles so as to increase the brightness. With the rough surface of the upper cover, lights emitted by the light emitting diode is able to be diffused, and the heat dissipating fin is disposed in the lower cover so that air can be introduced into the lower cover through the heat dissipating hole for generating convection so as to process heat dissipation to the heat dissipating fin, and users are prevented from being hurt by touching the heat dissipating fin.

A clean energy generation system, comprising at least one energy generation unit, each of which comprises a wind tunnel, an air/gas turbine, a generator, at least one heating device and an air/gas compressor. The wind tunnel includes a contraction section, a test section and a diffuser section. The air/gas turbine is located in the test section or the diffuser section and is coupled to the generator. The at least one heating device is located in the contraction section for preheating the air/gas flowing through the at least one heating device. The air/gas compressor is for compressing the air/gas flowing through the air/gas compressor and is located in the diffuser section or in the contraction section between the at least one heating device and the air/gas turbine. The air/gas turbine is driven by the preheated and compressed air/gas such that the generator is driven to generate electricity.