302results about How to "Control temperature rise" patented technology

A system includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and first and second electrodes within the balloon arranged to carry a voltage there-across including an initial high electrical voltage at an initial low current. The initial high electrical voltage causes an electrical arc to form across the first and second electrodes within the balloon. The electrical arc causes a gas bubble within the liquid, a high current to flow through the first and second electrodes, a decrease in the initial high electrical voltage, and a mechanical shock wave within the balloon. The system further includes a power source that provides the first and second electrodes with a drive voltage that creates the initial high electrical voltage at the initial current and that terminates the drive voltage in response to the decrease in the initial high electrical voltage.

The present invention discloses an electric vehicle charging pile cooling cable. The electric vehicle charging pile cooling cable comprises a cable core and a cable outer sheath covering the cable core; the cable core comprises power cables, a ground wire and auxiliary power cables; the cable core further comprises a control cable and/or signal cables; the power cable includes a power cable conductor and a power cable insulation layer; cooling cavity support ribs are arranged between the power cable conductor and the power cable insulation layer; the power cable insulation layer, the cooling chamber support ribs and the power cable conductor enclose cooling cavities for conveying a cooling liquid; the cooling cavities surround the outer periphery of the power cable conductor and are disposed along the length of the power cable conductor; a plurality of metal conductor wires are stranded and bunched so as to form the power cable conductor; and the power cable conductor is provided with a wire harness armoring layer. The electric vehicle charging pile cooling cable has the advantages of good heat dissipation effect, high flexibility and light weight, and can effectively reduce current heat and achieve high-power charging.

The invention discloses a method and device for controlling charging temperature rise of a mobile terminal, and belongs to the technical field of communication. The method comprises the steps that whether the mobile terminal is in a non-standby charging state is detected; if the mobile terminal is in the non-standby charging state, whether the mobile terminal runs a specified application program is judged; if the mobile terminal runs the specified application program, whether temperature of a battery of the mobile terminal reaches a preset temperature threshold value is detected; if the temperature of the battery reaches the preset temperature threshold value, a charging current of the battery is limited according to a preset current value. According to the method and device for controlling the charging temperature rise of the mobile terminal, the temperature of the battery is monitored by the mobile terminal according to the use circumstance of the specified application program by the mobile terminal in a charging process, the current value of the charging current is limited when the temperature of the battery reaches the preset temperature threshold value, and the purpose of controlling the charging temperature rise of the mobile terminal is achieved.

The invention discloses a programmable intelligent electric spindle. The programmable intelligent electric spindle comprises a front bearing pedestal, a rear bearing pedestal, a spindle body, a motor rotor, a motor stator, a cooling water jacket, an actuation bearing, an annular pressing block, a tool handle, a controller, a cooling liquid input pipeline, a cooling liquid outlet pipeline and a shell of a hollow structure. An annular cavity is formed between the motor stator and the shell, and the cooling water jacket is arranged in the cavity; a plurality of first piezoelectric actuators are evenly arranged between the annular pressing block and the front bearing pedestal in a divided manner in the circumferential direction, and a plurality of grooves are arranged on the inner side of the rear bearing pedestal in the circumferential direction; second piezoelectric actuators are embedded in the grooves; an electromagnetic valve is arranged on the cooling liquid input pipeline; and the output end of the controller is connected with the control end of the electromagnetic valve, and the control ends of the first piezoelectric actuators and the control ends of the second piezoelectric actuators are connected. Vibration and shaft end deformation of the spindle body can be reduced, temperature rising of the spindle body is regulated and controlled, the structure is simple, and the requirements of parts for machining quality diversity can be met.

A C4 two-stage hydrogenation device in catalytic thermal cracking to ethylene, which includes a hydrogenation reactor, a mixer and a feed heater, and its technical points are: the first-stage hydrogenation reactor and the second-stage hydrogenation reactor The inlet ends are connected to feed mixers, the outlet of the first-stage hydrogenation reactor is connected to the reflux tank through the discharge cooler, the outlet of the reflux tank is connected to the inlet of the reflux pump, and the outlet of the reflux pump is connected to the feed heater and the second-stage feed mixer in parallel. The material heater is connected to the first-stage feed mixer, and the C4 material feed pipe is connected in parallel on the pipeline between the feed heater and the first-stage feed mixer, and on the pipeline between the reflux pump and the second-stage feed mixer. The present invention adopts two-stage selective hydrogenation, which avoids serious coking in the first-stage reactor caused by deep hydrogenation of 1,3-butadiene, and reduces the operation cycle of the device and the service life of the catalyst. In addition, due to the stronger adaptability to raw materials, it is not necessary to separate light and heavy carbon four, and the mixed carbon four can be directly hydrogenated, which improves the utilization rate of raw materials.

The present invention is loading method of hydroprocessing catalyst. Unlike conventional grading loading scheme, The hydrogenating and denitrogenating reaction region is loaded with the catalyst in antitone grading mold, in which the activity of the hydrogenating and denitrogenating catalyst in the downstream bed side is slightly lower than that in the upstream bed side, and the pore size of the catalyst in the downstream bed side is slightly greater than that in the upstream bed side. The said loading method can control the temperature raise of hydrogenating and denitrogenating catalyst bed, reduce cold hydrogen amount to lower the hydrogen consumption of the apparatus, reduce the carbon deposit speed in the catalyst bed to reduce bed pressure drop of bed, and prolong the service life of catalyst.

The invention provides a coal tar hydrogenation system and a coal tar hydrogenation method. The method comprises a hydrogenation refining reactor, a separation unit and a hydrogenation cracking reactor, wherein the hydrogenation refining reactor is an up-flow fixed bed reactor, the hydrogenation cracking reactor is a down-flow fixed bed reactor, and the separation unit is a middle liquid separation tank; gas-liquid separation is performed on raw oil and hydrogen after a hydrogenation refining reaction, a part of liquid-phase heavy fractions is separated, one path is used as circulating oil and returned to perform the hydrogenation refining reaction again, and the other path is used as quenching oil after being cooled and added between catalyst bed layers for the hydrogenation refining reaction to play a role of cooling; and the other part of the liquid-phase heavy fractions is used as refined generated oil and mixed with hydrogen to perform a hydrogenation cracking reaction, and the obtained reaction product is combined with gas-phase light fractions after the gas-liquid separation to form the final product. The system and the method provided by the invention are low in equipment cost, simple to operate, capable of prolonging the life of the catalysts of the hydrogenation refining reactor and the hydrogenation cracking reactor, and suitable for raw oil with worse conditions.

The invention discloses an immersion control device used for a photoetching machine; a circular flow field cushion chamber, a sealing structure and a drying cavity are arranged from an injection cavity and a recovery cavity outwards in sequence; the flow field cushion chamber can carry out compensation to an exposure flow field in real time so as to reduce the occurrence probability and intensity of liquid backflow; the sealing structure adopts a combination mode of surface characteristic processing of hydrophilic and hydrophobic and the structure design of a tension groove; the section of the tension groove is a triangle inclined outwards in the direction vertical to a substrate; liquid which is drawn to move by the substrate forms backflow so as to restrain the liquid leakage; the drying cavity is filled with matters with super absorbent and communicated with negative pressure, and discharges possible residue of droplets in real time; simultaneously, the mode of conveying the liquid adopts positive pressure to feed the liquid and free flowing of recovery side, thus avoiding fluctuation of flow field caused by the incoordination of liquid injection and recovery pressure.

The present invention relates to a receiving member which accommodates a display panel which displays an image. The receiving member includes an insulated body portion having a bottom plate and sidewalls to define a receiving space, and at least one ground metal portion provided at a region of the insulated body portion, the at least one ground metal portion formed integrally with the insulated body portion. Accordingly, the body portion of the receiving member is formed of an insulated material, thereby reducing the weight of the receiving member and improving heat radiation. Further, a local metal portion is provided in the receiving member, thereby improving electromagnetic interference (“EMI”) and electrostatic discharge performances of elements such as a control board.

A gradation filling method of a heavy oil hydrogenation treatment catalyst. A reaction system includes two or more hydrogenation reactors connected in series. From the second reactor, the activity and probable pore size of the catalyst are both gradually decreased according to the sequence of contact with a reaction material flow in the same reactor. Between two adjacent reactors, according to the sequence of contact with the reaction material flow, the activity of the catalyst at the bottom of one reactor is lower than that at the top of the next one reactor, and the probable pore size of the catalyst at the bottom of one reactor is not more than that at the top of the next one reactor. Meanwhile, the activity of the catalyst at the bottom of one reactor is lower than that at the bottom of the next one reactor, and the probable pore size of the catalyst at the bottom of one reactor is large than that at the top of the next one reactor.

The invention discloses a centralized cooling system for a wind turbine generator system. The centralized cooling system comprises a generator, a water pump, a tee, a first radiator, a second radiator, an oil-water heat exchanger and a gearbox, wherein the tee is connected with the water pump, the first radiator and the second radiator respectively; the first radiator, the generator and the water pump are communicated in turn; the second radiator, the oil-water heat exchanger and the water pump are communicated in turn; and the oil-water heat exchanger is connected with the gearbox. The centralized cooling system integrates the generator and a gearbox water cooling system to eliminate the redundancy of the system. Meanwhile, two electric temperature control valves are adopted in the system, and the flow rates of refrigerating media of the generator and the gearbox water cooling system can be respectively adjusted by automatically adjusting the opening of the temperature control valves according to water inlet temperature of the generator and the gearbox, so that temperature rise of the generator and the gearbox can be simultaneously controlled.

The invention relates to an anti-dumping hand-push electrical mower which is provided with a machine casing, a power mechanism, an upper cover, a handrail, a grass collecting hopper, a front travelling wheel unit and a rear travelling wheel unit, wherein the upper cover and the handrail are connected with the upper part of the machine casing; the grass collecting hopper is connected with the rear part of the machine casing; and the front travelling wheel unit and the rear travelling wheel unit are connected with the bottom of the machine casing. The power mechanism is in a forwards arranged type. A motor can perform a certain whole machine weight balancing function after arranged on the front part. Part of the grass collecting hopper is arranged in the front space of the rear wheel, so that the grass collecting hopper is arranged on the front part as much as possible, the volume of the grass collecting hopper is ensured, and simultaneously, the distance between the rearest end of the grass collecting hopper and the furculum of the rear wheel is shortened. An adjusting handle, a triangular front connecting component and a triangular connecting component form the connecting rod mechanism. When the machine casing is adjusted to the highest position, i.e. the machine is in the highest cutting position, the machine moves forwards and moves backwards relative to the furculum of the rear wheel, thereby being beneficial to balancing the whole machine.

The invention relates to a lithium ion battery, and aims at providing a high-power lithium ion battery system with a laminated battery structure. The battery system comprises at least two single battery structures, adjacent single battery structures are separated by baffle plates, the laminated battery structure is formed by repeated arrangement of the single battery structures; electrolyte anodeand cathode outlet and inlet channels are respectively arranged on the baffle plates on two ends, two sides of the baffle plates arranged at the middle are both provided with an electrolyte flow path, and the flow paths arranged at the two sides are not communicated; and a piezoelectric pump and a radiating fin are respectively arranged between the electrolyte cathode outlet channel and electrolyte anode inlet channel and between the electrolyte anode outlet channel and the electrolyte cathode inlet channel, or the positions of the piezoelectric pump and the radiating fin are exchanged. By virtue of the battery system, the temperature rise of the lithium ion battery can be effectively suppressed during heavy current charging and discharging, the vaporization of an electrolyte is avoided, the explosion of the lithium ion battery duo to the rise of an internal pressure is effectively prevented, and the use safety of the lithium ion battery is improved.

This invention discloses a digital-controlled wire stripping machine characterized by that each step motor is electrically connected with the said step motor corresponding constant current chopper driver separately. after being fitted with constant chopping drive and static and dynamic current adjustment, the step motor has more powerful driving force, quicker rotating speed and more stable operation, and a gripping device is set up at the terminal for orderly and regular operation guided by a single-chip computer to increase the stripping quality.

The invention discloses a coal mine underground locating device and the locating method, which aims to overcome the technical problems of the low-sensitivity and low-precision locating by the locating device and locating method in prior art. The invention provides a locating device and the locating method with high sensitivity and high locating precision, which is safer and more reliable; the locating device in the invention is provided with a shell, on which equipped with a circuit board. The circuit board is mounted with a power source and the switch circuit. The power source and the switch circuit are connected with the interface I/O of the main chip which is connected with a signal amplifier circuit and a warning circuit; the signal amplifier circuit is connected with the technical scheme of antenna; separately calculates the distance between the signal intensity and the two communication base stations according to the signal intensity by testing the signal intensity from at least two communication base stations, and then calculates the locating method which accords with the coordinate point to the distance of the two base stations. The locating device and the locating method provided in the invention has high locating precision and high sensitivity, which is applicable to the safe production of the coal mine underground.

In this laminated ceramic capacitor, a heat radiation conductor is provided on a top face of a rectangular parallelepiped laminated chip where a plurality of first conductor layers and a plurality of second conductor layers are arranged alternatively through each ceramic layer with facing each other. In addition, the heat radiation conductor is connected to the upper edge of each second conductor layer. Therefore, when heat is generated in each first conductor layer and each second conductor layer which play the role of internal electrodes, the heat of each second conductor layer is directly transferred from each second conductor layer to the heat radiation conductor, and is radiated outside from the heat radiation conductor.

The invention discloses a double-stator single-rotor rare earth permanent magnet motor, which relates to the technical field of motors, in particular to a low-voltage high-power rare earth permanent magnet motor. The motor provided by the invention has two stators and a rotor. The rotor is positioned between the two stators. Armature windings are embedded into wire embedding slots of special rotor cores. A plurality of rare earth magnetic steels are embedded into magnetic conducting rings of the rotor, and provide a multipole magnetic field for air gaps on a left side and a right side. A starting winding and a damping winding are arranged in the rotor. Each stator can drive the rotor to rotate. The two stators can be loaded both simultaneously and respectively, also can be unloaded respectively, and can be controlled in both a direct current way and a frequency modulation mode. The two stators are fixed at the two ends of a housing by a front end cover and a rear end cover. A shaft runs through the rotor and connected with the rotor by a key. The rotor rotates to drive the motor shaft to rotate to output mechanical power. The double-stator single-rotor rare earth permanent magnet motor has the advantages that: sectional areas of a live conducting wire and the winding embedding slots of the cores are ensured; the temperature rise of the motor is controlled; the output power and efficiency are improved; and the designing problems of the low-voltage high-power motor are solved.

The invention discloses a waterproof charging type amphibious high-pressure cleaning machine. The machine comprises a shell; a motor pump unit and a rechargeable battery, wherein the motor pump unit comprises a motor and a mini-pump, wherein the motor comprises a motor shaft, a rotor and a stator iron core arranged in a motor shell, the rotor is arranged on the motor shaft, and the stator iron core is positioned outside the rotor; the mini-pump is provided with a pump water inlet and a high-pressure water outlet which are formed in a pump shell; the motor shell is provided with a sealing cavity I and an inner shell, the rotor and the stator iron core are arranged in the sealing cavity I, and the stator iron core clings to the inner shell to form a heat conduction channel; the motor shell is provided with at least one cooling channel I, a water inlet I and a water outlet I; the water inlet I is connected with an external water source, and the water outlet I communicates with the pump water inlet; and the sealing waterproof grade of the shell is not lower than IPX7. The waterproof charging type amphibious high-pressure cleaning machine has the beneficial effects that the waterproof grade can reach above IPX7, the machine is safer and more reliable, the working pressure of the whole machine reaches 2.5MPa, and higher cleaning capacity is achieved.