94results about How to "Limit temperature rise" patented technology

An LED lighting device has high cooling efficiency and long life with a plurality of high-intensity LEDs mounted thereto. The LED lighting device is composed of a light emission part provided with a plurality of LEDs and a heat radiator for the LEDs, a power source part generating a current to be supplied to the LEDs from a commercial power source, and an air circulation part for circulating ambient air. The light emission part and the power source part are thermally separated by the air circulation part. The light emission part is provided with an annular heat radiation base having a hole formed at a central portion thereof and a substrate attaching face formed around the hole, and an LED substrate which is attached to the substrate attaching face and on which a plurality of LED chips are mounted. The heat radiation base has heat radiation fins as the heat radiator which are formed on an outer periphery of the heat radiation base and on an inner periphery of the hole. By the presence of the air circulating part, little heat generated from the power source part is transmitted to the light emission part. Therefore, it is possible to accomplish desired designing of heat radiation of the light emission part concerned with intensity and life of an LED, which is critical to performance of an LED lighting device.

A disk drive comprising a first seek operating mode to move the actuator over a seek distance D in a seek time T₁, using a first seek profile for minimizing T₁, wherein for a first repetitive series of seeks over distance D a servo control system would require a delay time T_D between seeks to control temperature rise in a VCM. A second seek operating mode to move the actuator over the seek distance D in a second seek time T₂ using a second seek profile for limiting the temperature rise in the VCM, wherein for a second repetitive series of seeks over the seek distance D, a time average T_AVG of the T₂ seek times is substantially less than T₁+T_D.

In a read/write device for writing and reading a storage medium by way of a heat assisted magnetic recording/reproduction scheme, the read/write device including an elevated slider provided with a semiconductor laser, provided is a heat dissipation mechanism for dissipating heat generated in the elevated slider to an outside of a housing of the read/write device. Further, the storage medium has a second heatsink layer formed of an Al film having a thickness of 50 μm, a backing layer, a heat barrier layer, a first heatsink layer, a magnetic recording layer, and a protection film on a glass substrate. With this arrangement, in a read/write device which performs a heat assisted magnetic recording and reproduction by a semiconductor laser provided on the elevated slider, the occurrence of malfunction due to temperature rises in the storage medium is prevented.

This invention provides a technique of reducing temperature rise due to heat generation of polarization control elements. A projector includes: an illumination optical system; an electro-optical device for modulating light from the illumination optical system in response to image information; a projection optical system for projecting modulated light obtained with the electro-optical device and a base frame, formed using material including metal material, for mounting a plurality of optical components arranged on an optical path from the illumination optical system to the projection optical system. At least one of the plurality of optical components is a polarization control component that includes: a polarization control element including organic material for the controlling polarization state of light exiting from the polarization control element; and a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·K), to which the polarization control element is stuck. The light-transmissive member and the base frame are thermally coupled.

This particulate matter reducing apparatus 10 is provided to burn and reduce particulate matter (“PM”) in an exhaust gas 1 of a diesel engine while collecting the PM on each filter 11 at a low collection rate of 50% or less in total. The filter 11 is composed of a wire mesh structure and is formed in a short column shape provided with a central through hole 12. The filter 11 is coaxially housed in an outer cylindrical casing 4 with a gap 14 provided within the casing and is retained by a pair of front and rear shielding plates 17 and 18. The pair of shielding plates 17 and 18 divides the inside of the outer cylindrical casing 4 in front and rear and is provided with one or more air holes 15 and 16 at the outer circumferential section or at the central section.

An aerosol generating device (20) comprises a reservoir(1) for containing a liquid to be atomized and a nebulization chamber (3) for nebulizing a portion of the liquid received from the reservoir. The aerosol device further comprises liquid exchange means (7,8) for exchanging in use a further portion of the liquid received in the nebulization chamber with liquid from the reservoir to reduce a temperature increase of liquid in the nebulization chamber caused by heat produced by the piezo (4).

A light-emitting-diode backlight device includes a light source substrate to which many light-emitting diodes are mounted, and a bottom chassis having the light source substrate mounted to a principal surface side of the bottom chassis. Illumination light from the light-emitting diodes is supplied to a display panel unit. A back-surface side of the bottom chassis is provided with a heat-dissipating unit making uniform a temperature distribution over the entire bottom chassis. The heat-dissipating unit includes a mounting plate, a heat pipe, and a radiating fin. The mounting plate is mounted to at least a high-temperature area of the bottom chassis. The heat pipe is disposed on both the high-temperature area and a low-temperature area, and is mounted to the mounting plate. The radiating fin is mounted to the low-temperature area, and connected to an end of the heat pipe.

There is provided a ceramic filter capable of controlling extraordinary rise of the internal temperature upon regeneration by reducing an amount of deposited soot (particulates) by increasing a passage flow rate in the through-cells and realizing improvement of the regeneration limit and correspondence of PM emission and a method for manufacturing a ceramic filter. A plurality of circulation holes 7 are formed in the honeycomb segment 2, and the cells are constituted as inlets and/or outlets of the circulation holes 7 and contain a plurality of honeycomb segments 2 bonded to one another. Each honeycomb segment 2 includes a first inflow holes 8, a second inflow holes 9, and as a part at least through-cells 10 formed to extend through in such a manner that fluid can be discharged from the inlet to the outlet of the cells without being plugged at the inlet and the outlet of the cell.

In a method and a device for controlling hybrid functions in a motor vehicle, including at least one control unit, hybrid functions of a motor vehicle are controlled by the control unit, the control unit switching off at least one hybrid function above a predetermined battery temperature.

In this kind of related-art camera apparatus, since a lens apparatus is located on substantially the same axis of a disc drive apparatus or it is located distant from the disc drive apparatus with a large distance in the lateral direction, the whole of the camera apparatus is large in size and therefore it is not possible to make the whole of the camera apparatus compact in size. A camera apparatus includes a disc compartment portion (47) in which a DVD-R (8) is accommodated so as to be loaded and unloaded, a disc rotating apparatus (36) provided within the disc compartment portion (47) and rotating the DVD-R (8) which can be detachably loaded thereon, a lens apparatus (5) for passing light from an object, a CCD (6) for forming an image from light passed through the lens apparatus (5) and outputting an image signal corresponding to the image, an optical pickup apparatus (37) capable of recording image information on the DVD-R (8) based on the image signal outputted from the CCD (6) and a radiation plate (57) provided within the disc compartment portion (47). The radiation plate (57) and the CCD (6) are constructed so as to transmit heat therebetween so that heat can be radiated from the CCD (6) through the radiation plate (57) to the disc compartment portion (47).

A method of cooling an aircraft brake including a brake pack and a reservoir in the form of a removable cartridge containing a coolant. The method includes vaporizing the coolant using heat energy from the brake pack.

The invention provides an improvement of a proton exchange membrane fuel cell bipolar plate and is characterized in that a middle coolant flow field is made from a flexible graphite plate and the flexible graphite plate is peripherally equipped with a rigid thickness limit frame. The flexibility of the flexible graphite and certain elastic deformation thereof, not only can compensate for the inevitable unevenness deviation caused by the processing of anode flow field plate and cathode flow field plate, and ensure that the flow field plate surfaces are contacted closely and pressed together, so as to effectively reduce the contact resistance between the flow field plates, to achieve the minimized combination of contact resistances and to basically achieve no loss of interface voltage; but also achieve excellent plane thermal conductivity, so as to improve the cooling effect, limit the temperature rising of the cell stack and to achieve good-performance assembled batteries; in addition, since the flexible graphite texture is relatively soft in texture, the depth of a water flow channel can be relatively lower, so that the processing is easier. The combination performance is obviously superior to that of the rigid graphite cooling flow field and that of the flexible graphite reaction gas flow field. The three flow field plates are manufactured separately, so that the flow field can be changed easily and the independent optimization of the flow field can be realized.

The invention claims an electronic control unit. The electronic control unit comprises a substrate semiconductor module heat storage body insulation and heat sink. The substrate comprises wiring welding area and. The semiconductor module comprises used as switch device of the semiconductor chip and semiconductor chip and wiring is electrically coupled to the terminal sealing semiconductor chip and terminal of the moulded resin and having a moulded resin exposed from the surface and transferring the semiconductor chip at the heat generated by radiating fin. The heat storage body is equipped with the stored in the semiconductor chip is produced by the heat needed by the heat capacity. The heat storage body and the radiating sheet is coupled with. The insulating device is connected with the heat storage body and semiconductor module contact. Heat sink and insulator contact.

An internal combustion engine includes a cylinder block, a cylinder-block passage, a cylinder head, a cylinder-head passage, cylinders, an introducing portion, a restricting wall, and communicating portions. The introducing portion is configured to introduce coolant flowing in the cylinder-head passage into an EGR cooler. The restricting wall is configured to restrict flow of the coolant from a section corresponding to the spark plug toward the introducing portion. The communicating portions cause the cylinder-block passage and the cylinder-head passage to communicate with each other. A direction perpendicular to both the extending direction of the central axis of each cylinder and the cylinder arrangement direction is defined as a predetermined direction. Certain one or certain ones of the communicating portions are arranged at positions closer to an intake manifold than the restricting wall in the predetermined direction.

The invention discloses an electric spark machining device and electric spark machining tool based on a motion arc. The electric spark machining device comprises a rotating electrode unit, an electricenergy conveying unit, a liquid flushing unit and a spindle cooling unit, wherein the rotating electrode unit includes a rotating driving mechanism, a hollow spindle, a hollow connecting shaft and atubular electrode, the hollow spindle, the hollow connecting shaft and the tubular electrode are connected in sequence, the interiors of the hollow spindle, the hollow connecting shaft and the tubularelectrode form a medium channel, and the rotating driving mechanism is mounted on the hollow spindle of a spindle mounting seat in a driving mode; the electric energy conveying unit includes a directcurrent power supply, a protective resistor and a conductive sliding ring, the conductive sliding ring is arranged outside the hollow spindle in a sleeving mode, a cathode of the direct current powersupply is connected with the conductive sliding ring, and a positive electrode is connected with a workpiece through the protective resistor; the liquid flushing unit communicates with the hollow spindle through a rotating joint; and the spindle cooling unit communicates with a cooling cavity in the spindle mounting seat. The electric spark machining device can be applied to the field of electricspark machining, the stable arc of high-speed motion can be formed between the tubular electrode and the workpiece, and the motion arc can conduct high efficiency corrosion removing on the workpiece.

One embodiment provides an electronic device (for example, a ruggedized laptop computer) which includes a housing, a battery compartment, and a battery cover. The cover can have a thickness sufficient to protect the battery from damage. The cover can include a body, a conductive heat transfer device (for instance a conductive pad), and a convective heat transfer device (for instance, a plurality of fins). The conductive device can be on the inside of the cover and can abut the battery. Together, the conductive heat transfer device, the body of the battery cover, and the convective heat transfer device can form a heat transfer path from the battery to the environment which has a low overall heat transfer coefficient. The convective device can be a plurality of fins recessed into the exterior of the cover. A gusset can be on the interior of the cover and can correspond with the recess.

An apparatus for breast scanning comprises a patient support for a patient to rest in a prone position, the support having an opening with one of her breasts vertically pendent through the opening for scanning; and a laser CT scanner disposed below the support for generating data for reconstruction of images of the breast. The laser CT scanner includes a laser beam for impinging on the breast. The laser beam is orbitable around the breast. The laser CT scanner includes a plurality of detectors positioned in an arc around the breast to simultaneously detect light transmitted through the breast. The measured signal level at the detectors is maintained to an acceptable level while controlling the temperature rise on the breast surface during scanning.

An interior material 10 for vehicle, comprising: a base material layer 11; a first reinforcement layer 12 disposed on a surface of a vehicle interior side of the base material layer; a second reinforcement layer 13 disposed on a surface of a vehicle body side of the base material layer; a skin layer 14 disposed on a surface of the opposite side of the first reinforcement layer viewed from the base material layer; and a backside layer 15 disposed on a surface of the opposite side of the second reinforcement layer viewed from the base material layer, wherein the backside layer comprises a base layer 16 and a functional layer 15′ disposed on at least one surface of the base layer to block an air flow to the vehicle body side from the vehicle interior, and/or to reflect infrared radiation from the exterior of the vehicle.

An optical pickup lens holder which comprises a wholly aromatic liquid crystalline polyester resin composition comprising 97 to 45 mass percent of a wholly aromatic liquid crystalline polyester having a melting point of 320° C. or more, 3 to 50 mass percent of an inorganic spherical hollow material having an aspect ration of 2 or less and 0 to 30 percent by mass of an inorganic filler having as aspect ratio of 4 or more, wherein the percentages are made to 100 percent by mass in total, and having a specific gravity in the range of 1.00 to 1.35. The optical pickup lens holder exhibits excellent characteristics as an optical pickup lens holder, while containing good heat resistance in soldering and good processability inherent in a liquid crystalline polyester, exhibits high injection processability and high adaptability to a soldering process even when a sheet form lens holder having a thin part and an opening port, and is restricted in the temperature rise of the part near a driving coil.

Disclosed are a liquid crystal display device 10 and a method of making such liquid crystal display device that improves display quality by providing heat dissipation pattern 4 for effectively dissipating heat generated by the driver ICs 2. The heat dissipation pattern 4 is formed on a glass substrate of a liquid crystal panel 1 along one side thereof so as to minimize non-uniform thermal distribution on the liquid crystal panel 1 at locations adjacent to and distant from the driver ICs 2.

A method and an apparatus for increasing the convective heat transfer capabilities of a liquid cooler coupled to various system and vehicle components. The apparatus includes a structure placed within a hollow tubing of the liquid cooler to distort the laminar flow of fluid within a center portion of the hollow tubing, which decreases the temperature rise of the fluid along an outer wall of the hollow tubing associated with laminar flow. In preferred embodiments, the structure has an elongated baffle wire or an extruded elongated ridge member. The structure allows the outer surface of the tubing to have increased cooling at a particular liquid flow rate. As a result, there is an increase in heat transfer capability to a coupled system or vehicle component.

The invention provides a current-limiting fuse used for protecting an ozone high-frequency discharge unit. The current-limiting fuse comprises a shell body provided with copper caps on both ends, a fuse body unit communicated with the two copper caps is arranged inside the shell body, the shell body is filled with quartz sand, the fuse body unit comprises a fuse body, and metal or alloy with a fusing point lower than that of the fuse body is arranged on the fuse body. The current-limiting fuse is simple, reasonable and compact in structure, enhances the connecting/disconnecting capacity by adopting a design of combining metallurgical effects with multiple fractures, enhances arc extinguishing capacity of the fuse by adopting the quartz sand for filling and connecting springs in tensional state at both ends of the fuse body, and achieves the current-limiting protective function of cutting off a circuit at the fracture under a high current fault and directly cutting off the circuit by the fuse body under a short circuit fault. The current-limiting fuse has high connecting/disconnecting capacity and good arc extinguishing capacity, and can effectively avoid the risk of damaging an ozone generator due to faults such as overcurrent and short circuit by arranging the current-limiting fuse on one side of the discharge unit of the ozone generator.