6results about How to "Reduce hot spots" patented technology

The utility model discloses an induction heating type chip welding device, and relates to the technical field of chip welding. The device comprises a tool jig, wherein the tool jig is fixedly connected with a supporting rod for placing a chip through a placing cavity formed in the tool jig; the welding part comprises two hot-pressing seats, the two hot-pressing seats are symmetrically distributed by taking the tool jig as a center, one end, close to the tool jig, of each hot-pressing seat is fixedly connected with a heat conduction block, and a heat insulation plate is fixedly mounted on the outer surface of each hot-pressing seat. The utility model can effectively solve the problems in the prior art that no definite time sequence control exists in the heating and pressure applying process, the heating block starts to dissipate heat when approaching the chip, so that the welding flux is melted in advance when the pressure is not applied, the welding flux is oxidized, sheetted or bridged, and if the pressure is firstly applied and then the heating is performed, the welding flux cannot be heated. And the problem that the chip packaging material is deformed due to overlong pressure duration time is solved.

The present application relates to a kind of methyl tetrahydrophthalic anhydride continuous production process and device, the present application adopts piperylene segmented feed, isoprene is first with a part of piperylene and maleic anhydride pre-synthesis reaction at low temperature, then continue to react with another part of piperylene at higher temperature, reduce isoprene self-polymerization, using column tube heat exchanger to improve synthesis efficiency, heater and mixer are set on external circulation pipeline to carry out temperature control to reactor, using the method that reactor synthesis product carries fresh raw material and circulates into reactor to prevent fresh carbon five and anhydride aggregation self-polymerization to reduce side reaction, no high polymer slag is generated.

The present disclosure provides an in-slot cooling channel for an electric machine. A cooling manifold (112, 800) for an electric machine (14, 100) is presented that utilizes a hollow bolt (110) feed solution that utilizes an existing bolt structure and an interface with a housing (201) of the electric machine to form a fluid passage for directing coolant to an interior portion of a stator of the electric machine (14, 100). The hollow bolt (110) forms a sealed fluid interface without the need to add additional seals, thereby reducing the manufacturing complexity of the motor (14, 100). In-slot cooling with a manifold (112, 800) or with a plurality of said manifolds can eliminate the dependence on slot liners and varnishes for limiting relative movement of end windings of the stator and providing electrical isolation while also cooling the hottest portion of the electric machine (14, 100), significantly affecting the thermal confinement capability of the electric machine.

The invention relates to a cold-conducting radio-frequency therapeutic apparatus and equipment. The therapeutic side of the therapeutic apparatus is fixedly provided with two polar plates which are electrically connected with a radio-frequency circuit and drive skin to heat in the radio-frequency therapeutic process; the aluminum nitride ceramic chip is used for cooling the skin, the aluminum nitride ceramic chip is located between the two polar plates, gaps are reserved between the aluminum nitride ceramic chip and the two polar plates, and the working surface of the aluminum nitride ceramic chip and the working surfaces of the polar plates are located on the same plane and jointly form a treatment surface making contact with the skin. Due to the fact that the aluminum nitride ceramic chip is arranged, a unique cooling mode is provided, and the heat management effect of the therapeutic apparatus is remarkably improved. During or after radio frequency energy emission, the heat of skin between the electrodes is directly taken away by using the aluminum nitride ceramic chip, the cooling depth and efficiency far better than those of traditional air cooling or cold spraying are provided, a complex cooling structure is not needed, and the cost is remarkably reduced.

The application provides a liquid-cooled energy storage system energy distribution and scheduling control method and system, relates to the technical field of energy management, and comprises the following steps: collecting battery module working parameters, calculating a health state index, performing performance matching and cluster analysis to obtain an optimal grouping scheme; combining power grid load demand and power generation power to calculate target charging and discharging power; using a graph neural network to construct a topological relationship, analyze thermal coupling effects and electrical characteristics, predict temperature changes and performance degradation of different power distribution schemes, and determine an optimal power distribution scheme. The application improves energy utilization efficiency of the energy storage system, prolongs the service life of the battery, and guarantees system operation stability.

The application relates to the technical field of mini-LED, and provides a three-dimensional reflecting sheet for reducing mini-LED backlight halos, which comprises a plurality of integrally connected reflecting covers, each reflecting cover comprising: a reflecting bottom surface, the center of which is provided with a relief hole; a reflecting side surface, which is connected to the edge of the reflecting bottom surface along the circumference of the reflecting bottom surface, and which, together with the reflecting bottom surface, surrounds a cup-shaped cover body space; the adjacent reflecting covers are connected through the reflecting side surfaces, and the reflecting bottom surfaces and the reflecting side surfaces are integrally connected, so that the three-dimensional reflecting sheet is formed into an integral structure; the three-dimensional reflecting sheet can simultaneously process light rays from multiple directions, can block light beams from entering other control areas through the reflecting side surfaces, can reduce light leakage, and can reduce halos.