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37results about How to "Reduce heat source" patented technology
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Electric motor and electric vehicle having the same
ActiveUS20130285485A1Reduce heat sourceImprove cooling effectPower to auxillary motorsPropulsion by batteries/cellsHeat transmissionStator coil
Disclosed are an electric motor and an electric vehicle having the same. The electric motor includes a stator including a stator core and a stator coil wound around the stator core, a rotor disposed to be rotatable with respect to the stator, and a cooling unit configured to allow a cooling fluid to flow therein and disposed to be in contact with the stator to cool the stator, wherein an outer surface of the stator core includes grooves in which the cooling unit is inserted. Cooling performance can be enhanced by shortening a heat transmission path, and the cooling unit can be easily fabricated and coupled.
Owner:LG MAGNA E POWERTRAIN CO LTD
Load driving device and system
ActiveCN102548109AReduce heat sourceImprove reliabilityElectrical apparatusElectroluminescent light sourcesCurrent limitingControl theory
Owner:INVENTRONICS HANGZHOU
Electric motor and electric vehicle having the same
ActiveUS8937414B2Reduce heat sourceImprove cooling effectPower to auxillary motorsPropulsion by batteries/cellsHeat transmissionStator coil
Owner:LG MAGNA E POWERTRAIN CO LTD
Cooling system for electronic apparatus
InactiveUS20110185758A1Easy to installReduce heat sourceDomestic cooling apparatusLighting and heating apparatusCooling towerChilled water
A cooling system for an electronic apparatus, includes: a casing in which the electronic apparatus is housed; an evaporator which is disposed at a rear surface side of the casing, and cools heat released from the electronic apparatus by a refrigerant; a slide mechanism which connects the casing and the evaporator to be movable in a longitudinal direction with respect to the casing; at least any one of a cooling tower which is provided at a higher place than the evaporator and condenses the refrigerant by cooling of external air and sprinkled water, and a heat exchanger which cools the refrigerant by using chilled water; a circulation line which moves the refrigerant between the evaporator and at least one of the cooling tower and the heat exchanger; and a piping which connects the circulation line and the evaporator, and is extendable and contractible in response to movement of the evaporator.
Owner:HITACHI PLANT TECH LTD
Cutting frequency conversion control device for cantilever-type coal mine heading machine and control method of cutting frequency conversion control device
ActiveCN105227039APrevent RPM spikesLow costAC motor controlDriving meansFrequency changerLoop control
The invention discloses a cutting frequency conversion control device for a cantilever-type coal mine heading machine and a control method of the cutting frequency conversion control device. The device comprises a pre-charging and switching unit, an input reactor, a rectifier, an intermediate DC loop, an inverter, a controller and a sensor unit, wherein the output end of the pre-charging and switching unit is used for supplying power to a heading motor of the cantilever-type coal mine heading machine sequentially through the input reactor, the rectifier, the intermediate DC loop and the inverter, and the output end of the controller is connected with a controlled end of the inverter. The method comprises the following steps of: judging whether regenerative braking is required or not, generating a negative torque closed-loop control quantity by taking the voltage of the intermediate DC loop as a feedback quantity when the regenerative braking is required, and outputting the negative torque closed-loop control quantity to the inverter so as to control a motor to consume regenerative energy. The cutting frequency conversion control device and the control method thereof have the advantages that the regenerative energy can be consumed in no need of a chopper circuit, the material cost can be saved, the installation space is reduced, the cooling of an electrical cabinet of a frequency converter is improved, and convenient construction is achieved.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD
A high-temperature superconducting coil excitation device
ActiveCN109273190AReduce the burden onEliminate Joule heatSuperconducting magnets/coilsHigh-temperature superconductivityHigh energy
The invention discloses A high-temperature superconducting coil excitation device including the rack, a flux pump and a power mechanism arranged on the rack, and a low-temperature Dewar bottle for placing the flux pump and the high-temperature superconducting coil, A liquid nitrogen is arrange in that low-temperature Dewar bottle, the flux pump includes a support column, A superconduct wafer dispose on that circumferential surface of the support column and a superconducting lead disposed between the support column and the superconducting wafer and connecte with the superconducting wafer, and apermanent magnet mounted on the power mechanism and rotatable around the circumference of the support column, wherein the two ends of the superconducting lead protruding from the superconducting sheet are respectively connected with the two lead ends of the high-temperature superconducting coil, and a gap is arranged between the permanent magnet and the support column. The utility model has the advantages of simple structure, reasonable design, and can effectively solve the problems of expensive DC power supply equipment, high energy consumption, high refrigeration cost and complicated magnetic flux pump device for excitation of high-temperature superconducting coils, and has strong practicability and is convenient to be popularized and used.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Semi-continuous microwave catalytic thermal cracking reactor
InactiveCN105771809ATake advantage ofIncrease distanceChemical/physical/physico-chemical reactor detailsEnergy based chemical/physical/physico-chemical processesChemical industryThermodynamics
The invention discloses a semi-continuous microwave catalytic thermal cracking reactor. The semi-continuous microwave catalytic thermal cracking reactor of a vertical structure comprises a heating chamber, a microwave heating source and a catalytic static bed device. The cross section of the heating chamber is orthohexagonal. An inner quartz reaction cavity is formed in the heating chamber. Materials react in the inner quartz reaction cavity. Two groups of umbrella-shaped partition boards are arranged in the inner quartz reaction cavity. The upper umbrella-shaped structure is smaller than the lower umbrella-shaped structure in each group so as to enable the materials to slide down from top to bottom, and accordingly, motion paths of the materials are increased. The umbrella-shaped partition boards can be rotated according to needs. Three groups of microwave heating sources extending to the heating chamber are provided. The axes of each group of microwave heating sources do not coincide so as to reduce mutual interference. The catalytic static bed device can be mounted in the reactor, the reactor is provided with two temperature measurement openings, and one of the temperature measurement openings is used according to needs. The semi-continuous microwave catalytic thermal cracking reactor has the advantages that biomass conversion rate can be increased, heating stability can be improved and heating and catalyzing are integrated, and can be applied to the fields such as energy and chemical industry.
Owner:JIANGSU UNIV
Electric car with automatic kinetic-energy balancing generator
InactiveCN103879296APrevent lockPrevent slippingMachines/enginesMechanical power devicesElectric machineryAutomotive engineering
The invention discloses an electric car comprising an automatic kinetic-energy balancing generator, a driving system and a central control system. On the basis of an original spring type generator, a bidirectional rotor is added to form a kinetic-energy induction generator, automatic winding-up can be realized to continuously generate power by shaking or vibration generated by the electric car, and the generator is installed on the electric car through a gyroscope support so as to realize automatically balance kinetic energy. The central control system can judge storage energy or provide electricity according to driving states of the electric car. Dependency of the spring type generator on manual winding-up is reduced, and the purpose of continuous generation can be achieved by recycling of electricity of a hub motor and by various electricity generation measures. The electric car is simple in structure and capable of sufficiently utilizing existent energy resources, has the advantages of environmental friendliness, convenience and high economic value and has great popularization value of energy conservation and emission reduction.
Owner:王久龙
Power supply source control device for airplane
ActiveCN106655476AEasy to controlEasy to disassembleEmergency power supply arrangementsAviationJet aeroplane
The invention relates to a power supply source control device for an airplane, and belongs to the field of aviation electronics. The power supply source control device comprises a shell, a generator arranged in the shell, an excitation control module, an excitation storage battery, a current-limiting insurance 5A and a master control device arranged outside the shell, wherein the master control device comprises a storage battery interface, a ground power interface, a relay J1, a relay J2 and a relay J3 and a bus bar; coils of the relay J1 and the relay J2 are connected between the storage battery interface and the ground in parallel; a normally open contact J1-1 of the relay J1 is connected to the bus bar; the bus bar is connected with the coil of the relay J3 and one of power supply ends of the bus bar is connected to the excitation control module through an excitation control protection switch K1; the excitation control module is connected with a corresponding pin of the generator; the excitation storage battery, a work indicating lamp L and the current-limiting insurance 5A are connected in series and then connected to the power supply end of the excitation control module; and a positive electrode of a power supply of the generator is connected with a normally open contact J3-1 of the relay J3 through a switch S1. The power supply source control device for the airplane has the advantages of being low in cost, high in reliability, good in heat dissipation performance, safe and stable.
Owner:石家庄飞机工业有限责任公司
Projector and heat-dissipation control method thereof
The present invention discloses a projector and a heat-dissipation control method of the projector. The projector comprises a shell body, an air duct is formed in the shell body, an air inlet of the air duct is covered with a dustproof component, and the air duct is provided with a first temperature sensor, a second temperature sensor and a fixed heat source. The first temperature sensor is arranged near the air inlet of the air duct, the fixed heat source is arranged away from the air inlet, and the second temperature sensor is arranged adjacent to the fixed heat source. The projector is also provided with a processor, and the processor is electrically connected with the first temperature sensor and the second temperature sensor. The processor compares a temperature difference between a first temperature detected by the first temperature sensor and a second temperature detected by the second temperature sensor with a preset threshold, and if the temperature difference is more than the preset threshold, the using power of components of the projector is reduced. Therefore, the service life of the projector is improved and the damage rate of the components is reduced.
Owner:APPOTRONICS CORP LTD
Circulating ventilation fan system
InactiveCN102052732ASimple structureReduce heat sourceDucting arrangementsLighting and heating apparatusBevel gearDrive shaft
The invention discloses a circulating ventilation fan system, which comprises a fan, a motor, a transmission shaft I and a transmission shaft II, wherein the air inlet of the fan is communicated with an indoor pipeline, the outlet of the fan is communicated with a circulating pipeline, and the side wall of the circulating pipeline is provided with an outdoor pipeline I and an outdoor pipeline II communicated with the circulating pipeline; the transmission shaft I is arranged on the outdoor pipeline I and the outdoor pipeline II; the transmission shaft II is arranged on the circulating pipeline; the part, positioned between the outdoor pipeline I and the outdoor pipeline II, of the transmission shaft I is provided with a shaft sleeve bevel gear I; the end of the transmission shaft II is matched with the shaft sleeve bevel gear I and provided with a shaft sleeve bevel gear II; and a valve I, a valve II and a valve III are arranged in the outdoor pipeline I, the outdoor pipeline II and the circulating pipeline. The circulating ventilation fan system has the characteristics of simple structure, a few heating sources, reasonable design, installation convenience, high work efficiency, low production cost and convenience for popularization and use.
Owner:胡剑峰
Device and system for load driving
ActiveUS20130271032A1Improve driving reliabilityReduce heat sourceDc network circuit arrangementsElectroluminescent light sourcesElectric energyElectricity
A device and system for load driving. The device includes: an electric energy supplying unit including at least two units with output voltage adjustable; a sampling unit, with the input thereof connected to either end of a load unit for sampling the current of that end and sending the sampled current to an output voltage controller; the output voltage controller, with the input thereof connected to the output of the sampling unit for outputting voltage control signal to each unit with output voltage adjustable, according to the sampled current, so as to control the difference between the output voltage of each unit with output voltage adjustable and the maximum load voltage in a load branch to be not greater than a preset difference threshold, with the difference threshold being greater than or equal to zero. The device and system for load driving can improve the reliability of the driving device and can reduce the complexity of the circuit.
Owner:INVENTRONICS HANGZHOU
Fiber bundle affixing device
InactiveUS20210129456A1Reduce the impact of heatIncrease in size3D object support structuresApplying layer meansFiber bundleEngineering
A fiber bundle affixing device comprises an affixing head configured to affix fiber bundles that have been cut in advance to a predetermined length, one by one to an affixing surface under heating and / or pressure. The affixing head includes a heater configured to heat the fiber bundles and / or the affixing surface, and a feeder configured to hold and / or convey only one fiber bundle that is being affixed by the affixing head during an affixing operation of affixing the fiber bundles by the affixing head.
Owner:TORAY IND INC +1
Intelligent wearable equipment
PendingCN108712853AImprove cooling effectDoes not cause hot issuesElectronic time-piece structural detailsModifications by conduction heat transferEngineering
The invention relates to the technical field of intelligent wearing, in particular to intelligent wearable equipment. The intelligent wearable equipment comprises a shell, a PCBA assembly, a battery and a display screen module, wherein the PCBA assembly is arranged in the shell, the battery is arranged at the bottom of the shell and is arranged blew the PCBA assembly, and the display screen moduleis arranged at the top of the shell and is arranged above the PCBA assembly. By the intelligent wearable equipment, the heat dissipation performance of the intelligent wearable equipment can be optimized.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD
Double-sided rotary refrigerator
InactiveCN106288597AImplement position exchangeEasy accessLighting and heating apparatusDomestic refrigeratorsCold airEngineering
A double-sided rotary refrigerator comprises a cabinet, an evaporator, a condenser, a compressor and a control circuit board, wherein a fridge and an ice bar are arranged on the front side and the back side of the cabinet respectively; a non-transparent heat-insulating door is arranged on the fridge side; a transparent door is arranged on the ice bar side; the fridge and the ice bar are partitioned by a central partition board; a freezing chamber and a cold storage chamber are formed in the fridge side; the evaporator is arranged inside an evaporation chamber beside the freezing chamber; a cold air fan is arranged inside the evaporation chamber; cold air is communicated with the cold storage chamber and the ice bar through an inner cold air pipe; multiple layers of partition boards are arranged inside the ice bar; a rotating shaft is arranged at the center of the double-sided rotary refrigerator; the rotating shaft is connected with a rotating motor; a rotating base is arranged at the bottom of the refrigerator; the cabinet of the refrigerator rotates by taking the rotating shaft as a center. The double-sided rotary refrigerator has the functions of the fridge and the ice bar at the same time, and integrates a storage space, heat insulation performance and a display effect; the cabinet can automatically rotate around the central shaft, and through key control and programmed automatic operation, positions of the fridge and the ice bar are exchanged, so that storage and fetching in a kitchen and a dining room can be facilitated, and a fresh visual sense is brought to users.
Owner:张伟
Device and method for bending F rail for magnetic levitation
The invention discloses a device and a method for bending an F rail for magnetic levitation. The device comprises a headstock (1) for supporting, an upper roller (2) arranged on the headstock (1) androtating relative to the headstock (1), a lower roller (2) rotating relative to the headstock (1) and moving relative to the upper roller (2), a right roller (4) rotating relative to the headstock (1)and moving relative to the upper roller (2) and a left roller (5) rotating relative to the headstock (1) and moving relative to the upper roller (2). The right roller (4), the lower roller (3) and the left roller (5) are distributed along an arc-shaped line. The F type steel rail is clamped through the upper roller (2) and the lower roller (3); a bending action force is generated to the F type steel rail through the right roller (4) and the left roller (5); and extending and shrinking action forces are generated to the F type steel rail through the upper roller (2), the lower roller (3), theright roller (4) and the left roller (5). The F type steel rail is no longer straightly corrected manually or bended to deform, so that peristaltic wrinkles are prevented from being generated on the side part of the F type steel rail, and therefore, the deformation quality of the F type steel rail is improved.
Owner:TAIAN HUALU METALFORMING MACHINE TOOL
Load driving device and system, limiting point control method and device
ActiveUS20130285625A1Set distanceReduce heat sourceElectroluminescent light sourcesSemiconductor lamp usageCircuit complexityFeature parameter
A load driving device and system, and a limiting point control method and device. The load driving device comprising: a voltage / current regulative main circuit placed under the control of an output current controller, for use in conducting a voltage conversion on an input voltage, and in supplying electric power to a subsequent load unit; a sampling unit connected to an output terminal of the main circuit, for use in sampling an output feature parameter of the main circuit; the output current controller, for use in controlling a limiting point of the main circuit, and on the basis of the adjustment direction of the limiting point and on changes of the output feature parameters of the main circuit before and after an adjustment, determining a steady working point for the main circuit, and controlling the main circuit to work at the steady working point. The load driving device and system enable an increase in driver reliability and a reduction in circuit complexity.
Owner:INVENTRONICS HANGZHOU
High-frequency half-wave rectifier system of low-harmonicity and high-efficiency
ActiveUS20200044556A1Simple circuit configurationIncrease in sizeAc-dc conversion without reversalEfficient power electronics conversionVoltage regulator moduleCapacitance
A high-frequency half-wave rectifier system of low-harmonicity and high-efficiency, which mainly comprises: a current output device having an output end and a first flow-return end respectively at both ends, a rectifying module, a resonant tuning unit, a first node, a voltage regulator module, at least one load element, a grounding portion, and at least one flow-return path. By means of the above structure, a simple circuit configuration and appropriate capacitance value setting are used to control the duty cycle of the rectifying module to approximately 74 nanoseconds and adjust the output power and improve the AC to DC conversion efficiency for the rectifying module under the low electromagnetic interference condition.
Owner:NEWVASTEK CO LTD
Longitudinal movable-type circuit breaker centrally installed switchgear
ActiveCN107293982ASolve the problem of wideShorten the lengthSwitchgear with vertical withdrawalSwitchgear detailsBusbarEngineering
The invention relates to a longitudinal movable-type circuit breaker centrally installed switchgear, a circuit breaker truck can be longitudinally pushed or pulled from a circuit breaker chamber is realized through arranging a busbar chamber, the circuit breaker chamber and a cable chamber from top to bottom; an upper disconnecting switch moving contact and a lower disconnecting switch moving contact which are synchronously driven by a link mechanism are arranged on the circuit breaker truck relative to each fixed contact seat group; the upper disconnecting switch moving contact and the lower disconnecting switch moving contact move in reverse direction through driving the link mechanism to respectively insert to an upper fixed contact seat in the busbar chamber and a lower fixed contact seat in the cable chamber, then an upper disconnecting knife and a lower disconnecting knife are synchronously closed; and truck circuit breaker closing operation is performed finally, and power transmission is completed.
Owner:SUCTRN TECH
Multifunctional power-off acquisition protection device
PendingCN114334566AProtect the safety of useReduce usageSwitching device condition indicationProtective switch terminals/connectionsElectrical resistance and conductanceElectrical connection
The invention discloses a multifunctional power-off acquisition protection device, which comprises a shell, a working copper bar conductor, a cut-off piston, an ignition trigger and a pair of first signal acquisition terminals, and is characterized in that the shell is internally provided with a cut-off working chamber; the working copper bar electric conductor is inserted into the shell in a penetrating manner, at least one cutting reed is arranged in the cutting working cavity, and the cutting reed is an alloy resistor part made of an alloy material; the cut-off piston is arranged in the cut-off working chamber in a manner of moving up and down and is positioned right above the cut-off reed; the ignition trigger is arranged on the shell and used for driving the cut-off piston to move so as to cut off the cut-off reed when the ignition trigger is triggered to be started. The pair of first signal acquisition terminals is electrically connected to the two ends of the working copper bar conductor respectively. The multifunctional power-off acquisition protection device can realize the functions of current monitoring, overload protection, loop breaking and temperature monitoring.
Owner:昆山国力源通新能源科技有限公司
Load driving device and system, limiting point control method and device
ActiveUS9185756B2Improve reliabilityReduce circuit complexityElectroluminescent light sourcesSemiconductor lamp usageCircuit complexityEngineering
Owner:INVENTRONICS HANGZHOU
Wall lamp
ActiveCN113124345ALow costReduce heat sourceLighting support devicesElectric circuit arrangementsEngineeringMaterials science
The invention provides a wall lamp, and belongs to the technical field of lamps. According to the wall lamp, a single light source is adopted, an upper panel and a lower panel of a lamp body transmit light, a light-emitting face of a lamp panel is installed on the side, away from an installation base, of the lamp body, a reflecting cover adopts three groups of paraboloid-shaped reflecting faces, and one group of paraboloid-shaped reflecting faces enable light emitted by the lamp panel to be emitted out from an upper light-transmitting plate and a lower light-transmitting plate respectively; a cavity is formed on the back surface of the group of paraboloid-shaped reflecting surfaces; and a power supply assembly is arranged in the cavity. According to wall lamp, the single light source and the two paraboloid-shaped connected reflecting surface are adopted, light of the lamp panel is fully emitted from the upper light-transmitting plate and the lower light-transmitting plate, and the single-light-source up-and-down light-emitting wall lamp which is low in cost, few in heating source, high in light utilization rate and further in irradiation is achieved; the light-emitting face of the lamp panel faces the mounting base and is installed at the end, away from the mounting base, of the lamp body in a hidden mode, and the light of the lamp panel faces the wall and is not dazzling. The power supply assembly is installed in the back cavity, facing the mounting base, of the reflection cover, the space is saved, and the size of the lamp can be made small.
Owner:UP SHINE LIGHTING CO
Atomizing grippe vaccine composition and preparation thereof
InactiveCN101274097BShorten the construction periodHigh purityAerosol deliveryAntiviralsPhosphateIon exchange
The invention relates to a preparation method of a spraying composition of influenza vaccine. The composition contains influenza virus antigens and drug-acceptable carriers which are chosen from interferon, ion exchange resins, human serum albumin or phosphate buffer.
Owner:崔栋
Double disc round sander
The invention relates to a double disc round sander. The double disc round sander comprises a rotating shaft, a connecting piece fixed on the rotating shaft, an inner base disc and an outer base disc and further comprises an integration bearing. The integration bearing comprises an inner ring, a middle ring and an outer ring which are all rotatably connected in the radial direction, the middle ring is fixedly connected with the connecting piece, the inner base disc is fixed on the inner ring, and the outer base disc is fixed on the outer ring. According to the double disc round sander, the inner base disc and the outer base disc are connected to the connecting piece by adopting the integration bearing, a plurality of bearings are omitted, heating sources are fewer, parts are fewer, the integration bearing is fixed with the connecting piece through the middle ring, the requirements for the connecting piece are also low, and an assembling process is simple.
Owner:POSITEC POWER TOOLS (SUZHOU) CO LTD
High-frequency half-wave rectifier system of low-harmonicity and high-efficiency
ActiveUS10594205B2Simplify complexityReduce componentsAc-dc conversion without reversalEfficient power electronics conversionVoltage regulator moduleCapacitance
A high-frequency half-wave rectifier system of low-harmonicity and high-efficiency, which mainly comprises: a current output device having an output end and a first flow-return end respectively at both ends, a rectifying module, a resonant tuning unit, a first node, a voltage regulator module, at least one load element, a grounding portion, and at least one flow-return path. By means of the above structure, a simple circuit configuration and appropriate capacitance value setting are used to control the duty cycle of the rectifying module to approximately 74 nanoseconds and adjust the output power and improve the AC to DC conversion efficiency for the rectifying module under the low electromagnetic interference condition.
Owner:NEWVASTEK CO LTD
Aircraft power source control device
ActiveCN106655476BEasy to controlEasy to disassembleEmergency power supply arrangementsAviationCurrent limiting
The invention relates to a power supply source control device for aircraft, which belongs to the field of aviation electrics, and includes a casing, a generator arranged in the casing, an excitation control module, an excitation storage battery, a current-limiting insurance 5A, and a main control device arranged outside the casing ;The main control device includes battery interface, ground power interface, relay J1~relay J3 and bus bar; the coils of relay J1 and relay J2 are connected in parallel between the battery interface and ground, and the normally open contact J1‑1 of relay J1 is connected to the bus The bus bar is connected to the coil of the relay J3 and one of the power terminals of the bus bar is connected to the excitation control module through the excitation control protection switch K1; the excitation control module is connected to the corresponding pin of the generator, the excitation battery and the working indicator light L It is connected in series with the current-limiting fuse 5A and then connected to the power supply terminal of the excitation control module; the positive pole of the power supply of the generator is connected to the normally open contact J3-1 of the relay J3 through the switch S1. The invention has the advantages of low cost, high reliability, good heat dissipation and safety and stability.
Owner:石家庄飞机工业有限责任公司
Stainless steel wire annealing and heating process system
InactiveCN114540588AImprove temperature reliabilityImprove metallographic structureFurnace typesProcess efficiency improvementProcess systemsMetallurgy
According to a stainless steel wire walking route, each stainless steel wire sequentially penetrates through a drying oven pipe section, an exposed section, a wire inlet pipe section, an annealing furnace pipe section, a cooling pipe section and a wire outlet pipe section of the stainless steel wire according to the walking route; in addition, reducing gas is communicated with the joint of the annealing furnace pipe section and the cooling pipe section and flows out towards the opening of the wire feeding pipe to be combusted, and the stainless steel wire is instantly heated; and the subsequent stainless steel wire annealing furnace section is heated to the annealing temperature, cooled by the cooling pool and discharged from the wire outlet pipe. The stainless steel wire annealing equipment is simple and ingenious in structure and low in manufacturing cost and use cost, the reducing gas has multiple combination functions, the stainless steel wire heating efficiency is high, and the metallographic structure is good.
Owner:江苏铂宝焊材有限公司
Photocuring 3D printer base heat dissipation structure
ActiveCN114055776AShorten the timeExtended service lifeAdditive manufacturing apparatus3D object support structuresComputer printingEngineering
The invention discloses a photocuring 3D printer base heat dissipation structure. The structure comprises a supporting piece and a first cooling component, and the cooling component comprises a driving assembly, a plurality of first cooling fins and a plurality of second cooling fins; the driving assembly is used for driving the first cooling fins and the second cooling fins to move synchronously; the first cooling fins and the second cooling fins are arranged on the same side of the light-emitting source, the first cooling fins and the second cooling fins are arranged at intervals, and the first cooling fins are attached to the light-emitting source; when the temperature in the base is lower than or equal to the room temperature, a gap is formed between the second cooling fins and the light-emitting source; and when the temperature in the base is higher than the room temperature, the second cooling fins are attached to the light-emitting source. According to the photocuring 3D printer base heat dissipation structure, through the first cooling fins and the second cooling fins, the contact area of the light-emitting source and the cooling fins is increased, then the heat dissipation efficiency of the light-emitting source is improved, the time of the 3D printer in a high-temperature state is shortened, and then the service life of the 3D printer is prolonged.
Owner:SHENZHEN MINGDA TECH CO LTD
A kind of glycopyrrolate injection and preparation method thereof
ActiveCN103690479BReduce heat sourceImprove efficacyDigestive systemInorganic non-active ingredientsFiltration membraneGlycopyrrolate Injection
The invention discloses glycopyrronium bromide injection and a preparation method thereof. The preparation method disclosed by the invention comprises the following steps of: (1), adding 50-90% of injection water into a preparation tank, adding sodium chloride, adding a pH adjusting agent after dissolving to adjust the pH value to 1.0-4.0, and then, diluting to total weight by adding injection water to obtain solution A; (2), adding glycopyrronium bromide into the solution A at the constant temperature of 30-40 DEG C, stirring till dissolving completely, crudely filtering in a filtrate tank through a milliporous filtration membrane which is 0.45 mu m, and finally filtering through a milliporous filtration membrane which is 0.22 mu m to obtain an intermediate product; (3), filling the filtrate tank into a neutral boron-silicon container, sealing, and sterilizing through steam at 115-121 DEG C for 8-30 min to obtain the glycopyrronium bromide injection. The glycopyrronium bromide injection disclosed by the invention has the characteristics of being good in stability, high in safety and the like.
Owner:GUANGDONG JIABO PHARM CO LTD
Cutting frequency conversion control device and control method for cantilever coal mine roadheader
ActiveCN105227039BPrevent RPM spikesLow costAC motor controlDriving meansFrequency changerLoop control
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD
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