490results 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.

An eco green cookware is provided, having a double-layered wall structure and comprising a heat transfer medium within a cavity of the double-layered wall structure. The eco green cookware comprises: a container comprising an inner shell and an outer shell, wherein upper parts of the inner shell and outer shell are rolled a number of times together to form a rolled joint, an upper part of the inner shell is provided with a concave member, a heat transfer medium is provided within the cavity, a first heat transfer member is inserted and installed at the bottom portion of the cavity, and a second heat transfer member is affixed to the bottom surface of the first heat transfer member; an inner cover comprising an inner peripheral portion in the form of an inverted “L” whose inside bend forms a round portion; an outer cover; and pressure release devices.

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 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 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.

A protective circuit for protecting a rechargeable battery from battery breakdown caused by prolonged overcharging, and a protective element incorporated in this circuit are provided. A main protective circuit (A) is equipped with main control means (1) for shutting off a first FET (11) or a second FET (12) when any of overcharging, overdischarging, or excessive discharge current is detected. A sub-protective circuit (B) is equipped with sub-control means (2) for shutting off a third FET (13) when the anti-overcharging function of the main control means (1) is not operating properly.

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.

An undulated-wall honeycomb structure (1) has multiple cell passages (2) with mutually parallel passage directions. With this undulated-wall honeycomb structure (1), intersections (4) between walls (3) partitioning the cell passages (2) are formed at cross-sections perpendicular to the cell passages (2) and positioned systematically maintaining a predetermined pitch, and also the wall face portions (5) of the walls (3) excluding the intersections (4) are formed with undulated shapes in both the cell passage direction and the cross-section direction perpendicular to the cell passage direction. According to this undulated-wall honeycomb structure, advantages such as improved exhaust gas purification capabilities and catalyst capabilities, improved mechanical strength for canning, and further improved heat-resistant shock properties can be obtained.

A pressing member is prevented from being damaged by heat, heat dissipation through the pressing member on the higher-temperature side and reduction in thermoelectric conversion efficiency due to it are suppressed, and good electrical conduction is achieved even if thermoelectric conversion elements and electrodes are not cemented through a binder. A lower-temperature side electrode 6 is projecting toward a higher-temperature side substrate 8 and the lower-temperature side electrode 6 is formed with slope faces 6a, 6b, and an angle θ of each of the slope face to a surface of a lower-temperature side substrate 7 is an acute angle. A face 3a of a p-type thermoelectric conversion element 3 in contact with the lower-temperature side electrode 6 is along one slope face 6a of the lower-temperature side electrode and a face 4b of an n-type thermoelectric conversion element 4 in contact with the lower-temperature side electrode 6 is along the other slope face 6b of the lower-temperature side electrode 6; the p-type thermoelectric conversion element 3 and the n-type thermoelectric conversion element 4 are in contact with the lower-temperature side electrode 6 through the respective slope faces; a pressing member 5 presses a portion on the lower-temperature side substrate side of an outside thermoelectric conversion element 10, toward the other outside thermoelectric conversion element 10.

A semiconductor memory device is provided in which a phase-change layer can be formed stably and electric current required to cause the phase change of the phase-change layer can be reduced. An edge portion of the phase-change layer is formed above a lower electrode. The edge portion is formed to assume a tapered shape in cross section such that the thickness of the phase-change layer varies above the contact area between the lower electrode and the phase-change layer. The tapered portion is filled with an oxide film. According to this configuration, the region in which the phase-change occurs can be restricted, and hence the phase-change layer can be heated efficiently, resulting in reduction of electric current required for heating.

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.

A cold cathode gas discharge device is disclosed comprising an elongated fluorescent lamp that is supported along its length by means of the lamp support, such as a support pole. The support provides the device with mechanical strength, so that it does not need an outer shield for protection from external forces. A driver housing attaches together the lamp support and an electrical connector to form a rigid structure, forming a sturdy unitary body.

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.

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.

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.

A feed-through component for a conductor feed-through which passes through a part of a housing, for example a battery housing, is embedded in a glass or glass ceramic material and has at least one conductor, for example an essentially pin-shaped conductor, and a head part. The surface, in particular the cross-sectional surface, of the head part is greater than the surface, in particular the cross-sectional surface, of the conductor, for example of the essentially pin-shaped conductor. The head part is embodied such that is can be joined to an electrode-connecting component, for example an electrode-connecting part, which may be made of copper, a copper alloy CuSiC, an aluminum alloy AlSiC or aluminum, with a mechanically stable and non-detachable connection.

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.

An electric power steering system includes an overheat protection current value arithmetic unit that computes an overheat protection current value to which a current flowing into a motor is limited, and an overheat protection control unit that limits the current, which flows into the motor, on the basis of the computed overheat protection current value, suppresses heat dissipation caused by the current flowing into the motor, and thus protects onboard equipment. Information relevant to the computed overheat protection current value is stored. Whether a newly computed overheat protection current value is abnormal is decided based on comparison of the newly computed overheat protection current value with the stored information relevant to the overheat protection current value.

In a semiconductor device having a fuse 11 which makes connection between a first interconnection 10 and a second interconnection 12, and a first low heat-conductive section 13 which makes connection between the first interconnection 10 and a third interconnection 14 at a site of the first interconnection 10 where the fuse 11 is not connected, the first low heat-conductive section 13 is fabricated from a material having a heat conductivity lower than that of the material to form the first interconnection 10. When the fuse is blown with the laser beam irradiation, the heat dissipation through the heat conduction along the fuse and the interconnection is to be suppressed, and thereby a satisfactory disconnection at the fuse is to be achieved.