19results about How to "Reduce sparks" patented technology

The invention provides an auxiliary cooling device for friction welding of a ring pipe structure and a working method of the auxiliary cooling device, and belongs to the technical field of friction welding. The problems that in the prior art, due to the fact that the surface of an inner ring of a large-diameter-thickness-ratio ring material dissipates heat slowly, the cooling speed of a welding area is uneven, residual stress is increased, the strength of a welding joint is affected, and due to the fact that the surface of the inner ring dissipates heat slowly, microstructure changes are uneven, and the mechanical property of the material is affected are solved. The device comprises a tailstock side clamp, a main shaft side clamp, an inert gas connecting pipe, a gas nozzle and a cooling medium spraying mechanism, the tailstock side clamp is installed in a movable sliding table box body of friction welding equipment, a tailstock side part to be welded is clamped in the tailstock side clamp, a main shaft side part to be welded is clamped in the main shaft side clamp, and the inert gas connecting pipe is connected with the gas nozzle. An inert gas connecting pipe is arranged in the main shaft side to-be-welded part, the outlet end of the inert gas connecting pipe is connected with the gas nozzle, and a cooling medium spraying mechanism is arranged on the inner side of the tailstock side to-be-welded part. The device is mainly used for cooling the welding seam of friction welding.

The utility model provides a kind of electric plug structure of compressor, for and the pin of compressor are inserted, including electric plug body and three connecting columns;Three mounting through holes are opened on the electric plug body, three the mounting through hole is distributed along the circumferential direction, and the mounting through hole is along axial direction and penetrates the electric plug body;Three The connecting column is respectively installed in three the mounting through hole;The connecting column includes the connecting head and connecting rod part of being connected, the connecting head is used to be inserted with the wiring end of compressor, and the connecting rod part is used to be connected with outside;The cross section of the connecting head is scallop shape;The utility model can increase the contact area of the pin of compressor, reduce the phenomenon of sparking caused by bad contact, so that product quality is more stable, can also improve test efficiency simultaneously.

This utility model discloses a heat treatment quenching induction coil device, which includes a connecting bracket, a fixing plate, inlet and outlet water pipes, and a heating coil. The bottom of the connecting bracket is used for mounting on a quenching device. The connecting bracket has inlet and outlet water channels. One end of the inlet and outlet water pipes is connected to the connecting bracket, and the other end of the inlet and outlet water pipes extends out of the connecting bracket and connects to the heating coil. The inlet and outlet water pipes are connected to the inlet and outlet water channels. The fixing plate is sleeved on the inlet and outlet water pipes and is connected to the connecting bracket and presses against the inlet and outlet water pipes. The fixing plate effectively strengthens the connection between the inlet and outlet water pipes and the connecting bracket, ensuring full contact between the inlet and outlet water pipes and the connecting bracket without gaps. This effectively reduces sparking during production, significantly improves water leakage, increases work efficiency, ensures the reliability of heat treatment quality, and reduces manual labor intensity.

The present invention relates to the field of semiconductor technology, and in particular, to a silicon carbide single crystal growth device and a silicon carbide single crystal growth method for reducing the ignition of a heating element; the silicon carbide single crystal growth device for reducing the ignition of a heating element can be used to grow silicon carbide single crystals, and comprises a furnace body, a heating element, a crucible, a crucible cover and an insulating barrier, wherein the furnace body has a containing cavity; the crucible is arranged in the containing cavity, and the crucible has a cavity, and the cavity is used to fill silicon carbide raw materials; the crucible cover is detachably arranged above the crucible and is located at the opening of the cavity, and the crucible cover is used to fix the seed crystal; the heating element is arranged in the containing cavity, and the heating element surrounds the outer periphery of the crucible; the insulating barrier is arranged in the containing cavity, and is separated between the inner wall of the heating element and the outer wall of the crucible. The growth device can utilize the insulating barrier to reduce the ignition phenomenon, ensure the stability of the pressure and temperature in the furnace body, improve the quality of the grown crystal, and extend the service life of the heating element and the crucible.

The utility model provides a thermal field structure and a single crystal furnace, and relates to the technical field of crystal preparation equipment. The thermal field structure comprises a base, a first separator, a heat preservation cylinder, a first heater and a crucible; the first separator is arranged on the base; the insulating cylinder is arranged at one end of the first separator away from the base; the first heater is arranged in the heat preservation cylinder; one end of the first heater away from the base has a heating part; the crucible is arranged in the first heater and corresponds to the heating part. The single crystal furnace comprises a thermal field structure. According to the thermal field structure, sparking caused by the fact that the distance between the first heater and the heat preservation barrel is too close or material blocking occurs between the first heater and the heat preservation barrel can be reduced.

The utility model discloses an explosion-proof antistatic fan, including main part, sealing mechanism, connecting subassembly and antistatic subassembly, the sealing mechanism includes mounting box, spring, push plate, sealing box, positioning frame and fixing piece, connecting subassembly includes external expansion piece, wiring box, plug and connecting line, antistatic subassembly includes bracing frame, contact block and lead, the connecting box includes the external expansion piece, wiring box, plug and connecting line, the antistatic subassembly includes the bracing frame, contact block and lead. Under the mutual cooperation of the above mechanisms, the sealed connection box can effectively prevent external dust, oil mist, moisture and other substances from entering the line connection box, so that electrical elements are prevented from being affected with damp or polluted, the risk of sparks caused by electrical short circuit is reduced, in addition, the contact area between the device and external air is increased, and the service life of the device is prolonged. The fan can dissipate heat more effectively, and faults caused by too high temperature are avoided.

The utility model discloses a rotatory mounting structure of magnetic attraction power supply relates to intelligent house equipment technical field, including fixed base, the side of fixed base is equipped with the round interface, the side of fixed base is provided with panel main part, and the side of panel main part is provided with the round power supply pivot that is matched with round interface, the inside of round power supply pivot is provided with first annular magnet group, and the side of the reserved hole is provided with the limiting mechanism that carries out the fixed limit of cable. This rotatory mounting structure of magnetic attraction power supply, through the magnetic attraction butt joint between panel main part and fixed base, so that the user can easily rotate panel main part to any angle with one hand, the operation is smooth, the visual angle is adjusted freely, utilizes the magnetic attraction installation simultaneously, need not the tool, need not accurate alignment, improves installation efficiency greatly, and the non -contact type magnetic attraction connects physically and separates the strong electricity and weak electricity end, reduces the spark and the risk of electric shock.

The application relates to a high-power directional coupler for real-time measurement of high-power circular waveguide transmission energy. The design comprises a circular waveguide, two coupling holes and two rectangular waveguides vertically connected with the circular waveguide. High-power microwaves are transmitted in the circular waveguide, the two coupling holes are arranged on the wall surface of the circular waveguide, and the center distance is lambda / 4+n*lambda / 2 (lambda is the transmission wavelength, and n is a non-negative integer). The rectangular waveguide is vertically connected with the circular waveguide through the coupling hole, and the short side of the rectangular waveguide is parallel to the axial direction of the circular waveguide, which is used for receiving coupled energy and measuring transmission power through a power sensor. By averaging the transmission energy at the two coupling holes, the interference error caused by the echo is eliminated, and the forward transmission energy is accurately measured. The design effectively avoids the fluctuation problem in single-hole measurement, has the advantages of wide frequency band, low coupling coefficient, high reliability and high power resistance, and is suitable for real-time measurement and monitoring of high-power microwave system energy.

The invention discloses a swing rod contact laser cleaning device which comprises a workshop equipment supporting frame, a laser cleaning device, a return rail and a swing rod set, the laser cleaning device is installed on the workshop equipment supporting frame, the swing rod set is driven by a motor in a swing rod system to run along the return rail, and the swing rod set comprises a front swing rod and a rear swing rod. The return rail is horizontally installed on the workshop equipment supporting frame, and the return rail is parallel to the operation path of the swing rod set. The laser device is used for cleaning the contact of the swing rod, compared with a traditional brush cleaning mode, laser cleaning is more efficient and thorough, and the problem of sparking of the swing rod caused by incomplete cleaning can be solved; the swing rod is cleaned in the operation process, and the swing rod does not need to be stopped for cleaning, so that the production takt is not influenced, and the production efficiency is improved.

The invention provides a bearing device which is used for bearing a wafer in a semiconductor process chamber. The bearing device comprises a bearing body, the bearing body comprises a bearing surface for bearing a wafer, the bearing body is provided with a first gas through hole, and the first gas through hole is used for transmitting back blowing gas to the position between the bearing surface and the wafer arranged on the bearing surface; the blocking piece can do lifting motion relative to the bearing body so as to move to an avoiding position or a blocking position; when the blocking piece moves to the blocking position, the blocking piece is located in the first gas through hole, and the top face, facing the wafer, of the blocking piece is not lower than the plane where an opening, facing the wafer, of the first gas through hole is located. And when the blocking piece moves to the avoiding position, the blocking piece is separated from the first gas through hole. According to the bearing device, the pressure of the back blowing gas between the wafer and the bearing surface can be ensured, the probability of the sparking phenomenon of the bearing body can be reduced, and the service life of the bearing body is prolonged.

The utility model provides a dust explosion-proof control box which comprises a control box body, the control box body is divided into an upper cavity and a lower cavity through a partition plate, and the bottom of the control box body is provided with an explosion-proof connector connected with the lower cavity. The partition plate is provided with a wire passing opening, the lower cavity is provided with a lower Tesla valve used for communicating the lower cavity with the external atmosphere, and the lower Tesla valve is in a non-return mode in the direction from the lower cavity to the external atmosphere. The upper cavity is provided with an upper Tesla valve used for communicating the upper cavity with the lower cavity, and the upper Tesla valve is non-return in the direction from the upper cavity to the lower cavity; dehumidification boxes are arranged in the upper cavity and the lower cavity, and calcium chloride particles are contained in the dehumidification boxes. The utility model has the advantages that the internal insulativity can be improved, the internal and external air pressure can be balanced, and the deflagration separation can be realized.

The invention provides a safe explosion-proof electrical control cabinet, which comprises a cooling pipe, the cooling pipe is arranged on the outer wall of a shell, a plurality of fitting pipes are arranged in the cooling pipe, the plurality of fitting pipes are distributed in the cooling pipe at equal intervals, and the fitting pipes are in contact with a mounting structure. The electrical control cabinet is reasonable in design, generation of electric arcs and sparks in the electrical control cabinet can be reduced by filling nitrogen into the shell, and the filler (sand or rubber filler and the like) arranged in the shell can effectively absorb energy when the electrical control cabinet faces outwards or expands, so that the electrical control cabinet is prevented from being directly damaged.

The utility model relates to the technical field of electric bicycles, and provides an anti-sparking integrated cover plate structure which comprises an injection molding plate and a positioning groove formed in the injection molding plate, an aluminum row is placed in the positioning groove, a wire harness is arranged on the injection molding plate, one end of the wire harness is welded to the aluminum row, and the other end of the wire harness is welded to the aluminum row. A limiting assembly used for limiting movement of the aluminum bar is arranged in the positioning groove and comprises a limiting insertion rod fixedly installed in the positioning groove, the outer portion of the limiting insertion rod is in sliding connection with the aluminum bar, a containing groove is formed in the limiting insertion rod, and a containing plate is rotationally installed in the upper portion of the containing groove. The rotating end of the containing plate is away from the axis of the limiting insertion rod. Through the arrangement of the limiting assembly, the aluminum row is fixed, looseness of the aluminum row caused by vibration of an electric vehicle is reduced, through the arrangement of the limiting insertion rod and the pressing block, the aluminum row is limited in the horizontal direction and the vertical direction, and the sparking phenomenon caused by looseness of the aluminum row is reduced.

The embodiment of the utility model provides a crystal growth furnace, and relates to the technical field of silicon carbide crystal growth equipment. The crystal growth furnace comprises a furnace body and a heating device, the heating device comprises a heater and a water-cooled copper electrode which are connected, the heater is located in the crystal growth furnace and used for heating the crystal growth furnace, the water-cooled copper electrode is partially located in the furnace body, the end, away from the heater, of the water-cooled copper electrode extends out of the furnace body, and a cooling loop is arranged in the water-cooled copper electrode. The cooling loop is provided with a water inlet and a water outlet which are located outside the furnace body, the water inlet is used for being connected with a water cooling cable, and the water outlet is used for being connected with a water outlet pipe. The external cooling water can cool the water-cooling copper electrode through the water-cooling loop, so that the water-cooling copper electrode is prevented from being melted, the situation that the connection position of the water-cooling copper electrode and the heater is loosened due to high temperature can be reduced, and the sparking phenomenon occurring at the connection position of the heater and the water-cooling copper electrode in the crystal growth furnace is reduced.

The utility model provides plasma cutting equipment which is used for solving the problems that in the prior art, a sectional material is subjected to thermal deformation due to high cutting temperature, and dust and smoke generated by cutting pollute the environment. Plasma cutting equipment comprises a cutting frame and a plasma cutting machine, the plasma cutting machine is connected with a waterproof cutting gun, a rotating plate is hinged to one side of the plasma cutting machine and driven by an angle motor, a sliding groove is formed in the rotating plate, and the cutting gun moves in the sliding groove through a driving device. An annular water outlet is formed in the side wall of the cutting gun and faces the cutting end of the cutting gun, and a water collecting tank is arranged below the cutting gun. According to the cutting gun, the annular water outlet is formed in the side wall of the cutting gun, a cutting area can be cooled or cleaned in the cutting process, heat and sparks generated in the cutting process can be reduced, cooling of the cutting gun and channel steel is facilitated, thermal deformation and cracks are reduced, and therefore the cutting quality is improved.

A collector ring device of a self-cooling water turbine generator comprises a storage cavity and a circulation cavity which are arranged in a collector ring, the storage cavity is close to the inner side of the collector ring, and the circulation cavity is close to the outer side of the collector ring; the storage cavity is communicated with the circulating cavity through a communicating cavity; a heat dissipation pipe is arranged between the storage cavity and the circulation cavity and located on the outer side of the collecting ring. A one-way valve is installed on the heat dissipation pipe, and liquid flows from the circulation cavity to the storage cavity in a one-way mode. The collector ring device of the self-cooling water turbine generator provided by the utility model can effectively cool the collector ring.

The invention discloses a solar array regulator which comprises k stages of power units sequentially controlled by a hysteresis comparator, the input ends of the k stages of power units are connected to a solar array section, and the output ends of the k stages of power units are connected to an HV-BUS high-voltage bus and a main error amplification circuit in parallel. The power unit comprises a shunting part, a DCX push-pull part and a hysteresis comparator, the hysteresis comparator receives a signal of the main error amplification circuit, the DCX push-pull part is used for amplifying an input voltage in an equal proportion according to the turn ratio of a transformer, and control is carried out through the shunting part, the hysteresis comparator and the main error amplification circuit. According to the invention, the SADA can be ensured not to generate high voltage, the power supply safety of the whole satellite is protected, and the power density of the PCU is improved.

The utility model relates to the technical field of hydro-generators, and discloses an excitation improvement device of an old hydro-generator, which comprises a generator shell, a generator spindle is movably mounted in the generator shell, and an extension shaft is fixedly mounted on the outer surface of the generator spindle. Compared with a traditional device, through cooperation of the conductive block, the fixing support and the carbon brush, abrasion between the slip ring and the carbon brush is reduced, the current transmission efficiency is remarkably improved through introduction of the conductive block, the conductive block is made of high-quality conductive materials, the contact area between the slip ring and the carbon brush is increased, and the service life of the slip ring and the carbon brush is prolonged. The loss in the current transmission process is effectively reduced, meanwhile, the stability of the contact surface is optimized through the design of the conductive block, the current fluctuation caused by poor contact or vibration is avoided, and the stability of the magnetic field of the generator and the high quality of the output current are ensured.

The utility model relates to the field of abrasive wheel cutting blade structures, in particular to an abrasive wheel cutting blade structure which is safe to use. The technical problems that most grinding wheel cutting blade structures are only provided with clamping installation structures, blasting is prone to occurring, and the safety performance is low are solved. According to the technical scheme, the grinding wheel cutting disc structure safe to use comprises a grinding wheel cutting disc equipment body. By arranging the anti-explosion protection cooling assembly, an anti-explosion protection effect can be achieved on the cutting blade, meanwhile, the grinding wheel cutting blade which is being cut can be cooled in time, the problem that a blade or an appliance is damaged due to the fact that the temperature is too high is solved, and the anti-falling assembly can be installed in a reinforced mode according to needs. The grinding wheel cutting tool is stably fixed in a multi-layer mode, a blade is prevented from sliding off to cause injury to people, the reinforced buffering cutting assembly has high strength and high toughness, the high-quality grinding wheel cutting blade can reduce accident risks, and fragment splashing, smoke dust and sparks in the cutting process are reduced.