47results about How to "Avoid heat load" patented technology

A semiconductor device is provided, which is capable of improving mounting flexibility relatively and increasing general versatility, as well as realizing heat radiation characteristics and low on-resistance. Moreover, the semiconductor device is provided, which is capable of improving reliability, performing processing in manufacturing processes easily and reducing manufacturing costs. Also, the semiconductor device capable of decreasing the mounting area is provided. A semiconductor chip in which an IGBT is formed and a semiconductor chip in which a diode is formed are mounted over a die pad. Then, the semiconductor chip and the semiconductor chip are connected by using a clip. The clip is arranged so as not to overlap with bonding pads formed at the semiconductor chip in a flat state. The bonding pads formed at the semiconductor chip are connected to electrodes by using wires.

The invention relates to a frame (1) for a device for producing a three-dimensional object (3). The device produces the three-dimensional object (3) by layer-wise solidification of a powder or fluid construction material (3a) at the locations in a construction space corresponding to the cross section of the object (3) to be produced in each layer. The construction space is defined by the frame (1) and a platform (2) located in the frame (1), wherein the frame (1) comprises glass ceramic plates on the inner side thereof facing the construction space.

A PSA mechanism has adsorption towers. Cleaning valves and off gas valves are connected to the adsorption towers. Valve positions of at least either the cleaning valves or the off gas valves are determined based on an operation suspension period of the PSA mechanism or internal conditions which vary depending on the operation suspension period.

In a device comprising a first component (100) made of plastic and a second component (200) having a recess (210), the first component is at least partially arranged in the recess. The second component comprises an opening (220), which extends from an exterior of the second component to a first section of the first component arranged in the recess. The opening is arranged at an angle to the extension direction of the first component. The first component comprises a formed section (120) that is arranged in the opening.

A superconduct magnet contactless power supply device is provided. An output terminal of an alternating current power supply is serially connected with a compensation capacitor and then connected withone end of a primary winding. the other output of AC power supply is connected to the other end of primary winding, the primary winding wound by Leeds wire is arranged on the top surface of cryogenicvessel, the two ends of secondary winding wound by superconducting wire are connected with superconducting magnet load through superconducting bridge respectively, and the turns ratio of primary winding to secondary winding is greater than 1; The primary winding and the secondary winding are respectively wound on a disk-shaped coil skeleton, and the secondary winding and the coil skeleton, the superconducting bridge and the superconducting magnet load are all packaged in a cryogenic vessel. The invention solves the problems of large heat leakage of the lead wire, low efficiency of the low-temperature system, easy to induce quenching and the like existing in the contact power supply mode of the external driving power supply, and has the advantages of simple structure, high transmission efficiency, large working air gap and the like.

A system has a power source connected to power access points and at least one environmental control system. A threshold compare device is effective to compare the proportional load on the environmental control systems to a preset threshold. If the threshold is exceeded, unused power access points are disabled. This prevents such access points from placing additional loads on the environmental control systems. Conversely, when the proportional load on the environmental control systems drops below a preset threshold, power can be restored to the disabled power access points. A master control unit can monitor the load on the environmental control systems and either or both the environmental conditions in environment zones or the power loading of the power access points and determine whether to disable unused power outlets.

The invention relates to a method for producing a multi-layered sliding bearing (1), according to which method at least one layer, in particular a sliding layer (3), is deposited on a surface of a substrate by a spraying method. The layer is produced from at least two different materials, wherein, in a first step, a first material (5) is sprayed onto the substrate only in at least one defined region (8), wherein regions of the substrate surface that are not intended to be coated by said material (5) are protected with a mask (6) against the deposition of the material (5) and wherein, in at least one second step, the further region(s) (9) is or are coated with at least one of the further materials by spraying.

The invention discloses a three-stage phase change heat exchanger, and is used for heat dissipation of a high-power component with ultrahigh heat flux. The heat exchanger comprises a heat exchanger main body, a cooling liquid nozzle and a supporting structure of the cooling liquid nozzle, wherein the heat exchanger main body comprises a metal harmonica- shaped tube, a metal or alloy solid-liquid phase change material cavity, an expansion heat dissipation surface outside the cavity and two end heads; and the cooling liquid nozzle and the supporting structure thereof comprise a supporting structure and a nozzle or a nozzle array. A refrigerant fluid working medium flows into the metal harmonica-shaped tube through the end head and absorbs heat led in from the lower wall surface of the harmonica-shaped tube, and a vaporized refrigerant flows out from the other end head of the metal harmonica-shaped tube. When the heat production is drastically increased, the metal or alloy solid material in the cavity is subjected to solid-liquid phase change, meanwhile, the nozzle at the top sprays atomized cooling (insulating) liquid, and the atomized cooling (insulating) liquid is in contact with the upper surface of a heat dissipation shell and absorbs heat to be vaporized; and extra instantaneous large heat flow heat is absorbed through two phase change latent heat of metal or alloy solid-liquid phase change and cooling liquid spray liquid-gas phase change, and it is guaranteed that the temperature of a high-power component is maintained within a certain range to work normally.

The invention discloses an engine connecting rod mechanism with a variable compression ratio. An existing engine connecting rod mechanism is characterized in that once the engine connecting rod mechanism is designed, the compression ratio of an engine cannot be changed through a connecting rod and the performance of the engine cannot be fully exerted due to a fixed compression ratio. According to the engine connecting rod mechanism with the variable compression ratio, the working length of the connecting rod is stretched out and drawn back through connecting rod structures of inner and outer combination bodies; the engine connecting rod mechanism is characterized in that the compression ratio of the engine can be changed and the performance of the engine can be fully exerted.

To provide a cooling fluid supply apparatus capable of continuing cooling a heat load even when supply of a cooling fluid stops while the heat load is running. A cooling fluid circulation path connecting a cooling fluid supply apparatus and a heat load and a heat-dissipating fluid circulation path connecting the cooling fluid supply apparatus and a heat-dissipating fluid supply apparatus are connected with bypass pipes and disposed therebetween. When a cooling fluid is supplied from the cooling fluid supply apparatus to the heat load, the cooling fluid circulation path and heat-dissipating fluid circulation path are disconnected by closing the bypass pipes and by using the overheating prevention valves. When the supply of the cooling fluid from the cooling fluid supply apparatus to the heat load is stopped, a heat-dissipating fluid from the heat-dissipating fluid supply apparatus is supplied to the heat load by connecting the cooling fluid circulation path and heat-dissipating fluid circulation path by using the overheating prevention valves.

The invention relates to a method for producing a transformer core (200), among other things. According to the invention, adjacent plate edges are connected to one another by means of cold gas spraying using a material that can be magnetized. As a result, the magnetic flow can remain within the transformer plate without having to change to a neighboring transformer plate. Planar electrical eddy currents in the transformer plates can also be avoided and the electrical losses and the core noises can be reduced during operation of the transformer. By using a cold gas spraying method, bonding material can be formed on the basis of nanocrystalline or amorphous materials, for example. There is preferably one electrically isolating insert (300) provided between each of the two transformer plates after connecting the two plate edges of one of the transformer plates and before connecting the two plate edges of the next overlying transformer plate. According to the invention, the cold gas spray stream is thus prevented from hitting the underlying transformer plate when connecting the two plate edges of the overlying transformer plate.

The invention discloses an electric pressurization type anti G suit. A motor is adopted to drive a gear to rotate, so that a binding rope is wound on a winding wheel, so that the pressure control on atightening region is realized, meanwhile, an elastic device is arranged in the tightening region, so that the pressure of the tightening region is ensured to be consistent; when the motor receives aforward rotation signal, the motor rotates forwards, the tightening area is tightened by the binding rope, continuous pressure is applied to a limb of a pilot, so that the resistance of the blood vessel around the limb is immediately increased, the diaphragm is prevented from falling, so that the blood in the limb enters a brain, and the symptoms such as the high-altitude anoxia, the grey view andthe dark view of the pilot are prevented; and when the motor receives a reversal signal, the motor rotates reversely, the winding wheel rotates reversely, the binding rope is loosened, under the action of elasticity, the tightening area is loosened, and blood in the pilot flows normally. According to the electric pressurization type anti G suit, the air bag structure in the existing anti G suit is omitted, and the weight of the anti G suit is reduced, meanwhile, the problems of poor air permeability of the anti G suit and overlarge thermal load of the pilot are solved, and the man-machine combination efficiency is improved.