31results about How to "Avoid the risk of overheating" patented technology

The invention relates to a process for operating a washer dryer comprising a tub 1, a drum 2 mounted in the tub 1 to be rotatable around an essentially horizontal axis 30 for receiving laundry items 5, a control unit 16, a process air circuit 4 comprising a liquefier 8 of a heat pump circuit 8,9,10,11 and a blower 6 to heat and circulate the heated air through the drum 2, an evaporator 9 to condense moisture from the process air coming out of the drum 2, a temperature sensor 19, 20, 21, and a rinsing device 12, wherein: (a) the temperature sensor 19, 20, 21 measures a temperature value T app in the process air circuit 4 or the heat pump circuit 8,9,10,11 which are indicative of a temperature of the refrigerant in the heat pump circuit 8,9,10,11; and (b) the rinsing device 12 flushes the evaporator 9 with an aqueous liquid 15 when the temperature T app reaches or exceeds an upper temperature limit T max set .

The invention belongs to aerospace design and manufacturing technologies, and particularly discloses an aluminum-alloy tank melon petal punching device and punching method. The punching device comprises an upper pressing block, a molding female die, an insulating padding plate and a lower pressing block, wherein the upper pressing block, the molding female die, the insulating padding plate and the lower pressing block are coaxially installed, the molding female die is arranged on the upper portion of the insulating padding plate which is provided with an installing groove, an inductor coil is arranged in the installing groove, the upper pressing block is arranged on the molding female die, and the lower pressing block is arranged on the lower portion of the insulating padding plate. The punching method comprises the steps that plates are subjected to deep-drawing deformation, punching machining is conducted by means of a magnetic pulse technology, the restrictive use process of secondary solid solution treatment is eliminated, the risk that parts are prone to overburning due to multiple times of solid solution treatment is avoided, and meanwhile tensile strength and yield strength of the parts are improved.

The invention discloses an air intake vent temperature correction method based on GPU power consumption and environment temperature. The specific method is as follows: S1, acquiring feedback environment temperature data and power consumption data of a backboard in real time; S2, computationally analyzing the environment temperature to work out a correction coefficient, and computationally analyzing the power consumption data to work out a correction coefficient; S3, adding the two correction coefficients, and then adding a constant value coefficient; S4, outputting real-time and effective Intel sensor feedback value. Compared with the prior art, the feedback value of an Inlet sensor is corrected according to the power consumption and the environment temperature of the backboard by use of the air intake vent temperature correction method based on GPU power consumption and environment temperature, so that the environment temperature can be accurately and really reflected by excluding multiple factors; therefore, not only can the requirement of a customer be satisfied, but also the rotational speed of a fan can be accurately and efficiently controlled in cooperation with a regulating strategy, the power waste caused by excessive rotational speed of the fan is avoided, and the excessive temperature risk caused by too low rotational speed is further avoided.

The invention relates to a self-adaptive control method for a piston cooling nozzle and a system, and the method comprises the following steps: enabling the piston cooling nozzle to be closed by default when an engine is powered on, operates or stops; judging whether engine oil temperature is lower than a closing temperature limit value or not in real time; and when the engine oil temperature is lower than the closing temperature limit value, whether the piston cooling nozzle is opened or not is determined according to the engine rotating speed, load, detonation and preignition conditions. According to the self-adaptive control method for the piston cooling nozzle, frequent opening and closing, triggered by a single factor, of the piston cooling nozzle when the working condition of the engine is changed are avoided, the overheating risk is avoided, and meanwhile the service life of the piston cooling nozzle and the service life of an electronic control valve are prolonged.

The invention relates to an operation start method of a FCC gasoline hydrogenation catalyst. In the operation start method, a first-section catalyst is pre-vulcanized during an initial stage of operation start so that a best hydrogenation activity of the first-section catalyst is achieved. A second-section catalyst is gradually vulcanized during the operation start by hydrogen sulfide generated by vulcanization of the first-section catalyst. By means of the method, a temperature runaway risk due to excessive high activity of a catalyst during the initial stage of the operation start of the catalyst, thereby reducing loss of octane number due to the excessive high initial activity of the catalyst during the initial stage of the operation start.

An explosion-proof capacitor, belonging to the technical field of power capacitors, aimed at existing power capacitors, including power capacitors with good internal heat conduction, the heat at the center of the capacitor is not easy to dissipate and cause local temperature to be too high; the invention provides an explosion-proof capacitor, It includes a shell, an aluminum cover, a terminal, an insulating sleeve, a silicone ring, a nut, an explosion-proof plate, a copper foil, and an internal capacitor core. The shell is cylindrical, and a cylindrical cavity is arranged in the middle of the shell. Cooling cavity, the upper part of the cooling cavity is provided with an inlet pipe, the lower part of the cooling cavity is provided with a discharge pipe, and the inside of the cooling cavity is provided with a spoiler; the invention takes away heat through the flow of the cooling medium in the cooling cavity, thereby preventing the middle part of the capacitor from Potential safety hazards caused by excessive temperature.

The invention belongs to the technical field of heat treatment, and particularly relates to a proportional cooling control method used for a differential temperature heating technology heat treatment furnace. At present, an excessively-small slope of slope cooling is prone to metal overtemperature, and the production cycle can be prolonged due to an excessively-large slope; and the production period of jump cooling is long. According to the proportional cooling control method used for the differential temperature heating technology heat treatment furnace, the metal temperature participates in furnace gas temperature control, and the metal temperature and an original PID temperature control algorithm of a control system are combined, so that the production period is greatly shortened, and meanwhile, the risk of metal overtemperature is avoided; and an effect of automatically controlling a differential temperature cooling process is achieved, the production period is shortened, and the purpose of reducing the risk of metal overtemperature is achieved.

The invention provides a self-adaptive temperature control system. The self-adaptive temperature control system comprises a spraying module, a phase change material and a self-adaptive valve body, wherein the spraying module is provided with a liquid discharging assembly and is used for spraying a fluid working medium onto the surface of heat generating equipment; the phase change material is arranged in the circumferential direction of the heat generating equipment and controls the temperature of the heat generating equipment before being completely thawed; the self-adaptive valve body is arranged on the liquid discharging assembly and is used for opening or closing the liquid discharging assembly so as to achieve temperature control of the heat generating equipment after the phase changematerial is completely thawed. When the heat generating equipment has low power, the temperature is controlled through the phase change material; when the heat generating equipment has high power, the phase change material is completely thawed, the temperature continuously rises, and the temperature is controlled through combination of the self-adaptive valve body and the spraying module; the self-adaptive temperature control of the heat generating equipment is achieved, the heat exchanging process is self-adaptive, and temperature measurement and calculation of a temperature control processor are not required.

The invention provides an engine control method and device, a vehicle and an electronic controller applied to the vehicle. The method comprises the steps that an engine water temperature value, a vehicle speed value, an engine load value and an environment temperature value are obtained; under the condition that the engine water temperature value is larger than a first early warning water temperature value, the altitude value of the position where the vehicle is located is obtained; under the condition that the altitude value is larger than a preset altitude threshold value, a target vehicle gear is determined on the basis of the altitude value, the vehicle speed value, the engine load value and the environment temperature value, so that the transmission downshifts on the basis of the target vehicle gear; and under the condition that the information that the transmission performs downshift based on the target vehicle gear is received, the rotating speed of the engine is controlled to be increased to increase the water flow of the engine, so that the heat dissipation performance of the whole vehicle is improved, the water temperature value of the engine is reduced, the risk that the temperature of the engine is too high under the plateau working condition is avoided, and the service life of the engine is prolonged. And the reliability and the stability of the vehicle are improved.

The embodiment of the present invention relates to a power distribution box for an electric vehicle, comprising an upper case, a lower case, a plurality of relays and a PCB, the upper case is fixedly connected to the lower case, and the plurality of relays are fixedly mounted on On the upper case, the PCB is fixedly mounted on the lower case, the upper case has a hollow structure, and the connecting terminals of the plurality of relays pass through the hollow structure of the upper case and are inserted into the PCB. on the corresponding terminals. The power distribution box reduces the difficulty of installation and maintenance.

The invention provides an efficient and energy-saving air source heat pump. The efficient and energy-saving air source heat pump comprises a refrigerant compression device, an integrated heat supply unit and an energy-saving module, wherein the outlet of the refrigerant compression device communicates with the inlet of the integrated heat supply unit; the energy-saving module comprises a first energy-saving module and a second energy-saving module arranged in parallel; the first energy-saving module comprises a first heat exchanger and a first control module which are arranged in series; the outlet of the first heat exchanger communicates with the inlet of the refrigerant compression device; the inlet of the first heat exchanger communicates with the outlet of the integrated heat supply unit through the first control module; the second energy-saving module comprises a second heat exchanger and a second control module which are arranged in series; the outlet of the second heat exchangercommunicates with the inlet of the refrigerant compression device; the inlet of the second heat exchanger communicates with the outlet of the integrated heat supply unit through the second control module; and the first control module and the second control module are configured to control the first heat exchanger and the second heat exchanger to alternatively perform defrosting. The efficient andenergy-saving air source heat pump can avoid the stop of system heating and the high-pressure risk of the refrigerant compression device.

The invention provides a discharge circuit and a discharge method for an electric vehicle and the electric vehicle. The discharge circuit of the electric vehicle comprises a first discharge circuit and a second discharge circuit which are connected with a target discharge capacitor of the electric vehicle in parallel, as well as a controller, wherein the first discharge circuit comprises a first switch and a heating resistor of a heater of the electric vehicle, and the first switch and the heating resistor are connected in series; the second discharge circuit comprises a second switch and a power consumption device which are connected in series; the controller is used for controlling switching on and off of the first switch and the second switch, and the first switch and the second switch are both electrically connected with the controller. According to the scheme, through cooperative use of the first discharge circuit and the second discharge circuit, the risk that the heater, a battery and a motor are too hot during discharge of the discharge capacitor can be effectively avoided.

The invention discloses a device for realizing vacuum reflow soldering high-temperature uniformity and a processing method thereof, and relates to the technical field of vacuum reflow soldering. Vapor-phase liquid in the vapor-phase liquid storage tank is filtered by the first filter through the circulating pump and then injected into the vacuum cavity through the injection valve, the vapor-phase liquid reaches the boiling point through the heating effect of the cavity wall of the vacuum cavity, high-temperature steam is generated, the high-temperature steam is used for heating products in the cavity, and the products in the cavity are heated. Stopping heating when the product temperature reaches the liquid boiling point and the saturated steam temperature; and the vacuum cavity is vacuumized again through the vacuumizing pipeline, and after the saturated steam in the vacuum cavity is condensed and filtered through the condensation filter, the saturated steam recovers to be in the liquid state, and vapor-phase liquid flows back into the vapor-phase liquid storage tank. The heat transfer efficiency is higher, overheating is avoided, and the heat accessibility is good. And the vapor-phase liquid can be condensed and recycled through a vacuumizing pipeline for reuse. Products welded through the technology are high in reliability, free of cavities in welding spots, high in assembly density, high in vibration resistance and good in high-frequency characteristic.

The invention relates to the technical field of computer systems, specifically a computer artificial intelligence information screening device including a database, an acquisition module, a conversion module, an element extension module, a pre-screening module, a storage module, an execution module and a display module; the acquisition module is used To read the information in the current computer page, and split the information in the current computer page into a plurality of restricted elements, filter the data related to the extended elements and restricted elements from the database through the pre-screening module, and filter out The results are stored in the storage module, which greatly reduces the subsequent screening intensity and can greatly improve the screening speed of the subsequent steps. When reading a web page or document, you only need to directly click the visual button corresponding to the restricted element and the extended element with the mouse Screening can be carried out, which greatly facilitates the use and improves the efficiency of screening.

The invention relates to an operation start method of a FCC gasoline hydrogenation catalyst. In the operation start method, a first-section catalyst is pre-vulcanized during an initial stage of operation start so that a best hydrogenation activity of the first-section catalyst is achieved. A second-section catalyst is gradually vulcanized during the operation start by hydrogen sulfide generated by vulcanization of the first-section catalyst. By means of the method, a temperature runaway risk due to excessive high activity of a catalyst during the initial stage of the operation start of the catalyst, thereby reducing loss of octane number due to the excessive high initial activity of the catalyst during the initial stage of the operation start.

The invention discloses an oven and a control method thereof.The oven comprises an oven body, a baking chamber is arranged in the oven body, and an opening is formed in the front end of the baking chamber; the door body is pivotally arranged on the refrigerator body; the automatic door opening and closing mechanism is used for driving the door body to open or close the opening of the baking chamber; and the heat dissipation mechanism is arranged in the box body, and the heat dissipation mechanism is at least used for discharging gas in the baking chamber to the outside so as to reduce the temperature in the baking chamber. According to the oven, the automatic door opening and closing mechanism is started to open the door body, external cold air flows into the baking chamber, the heat dissipation mechanism is started to discharge hot air in the baking chamber to the outside, negative pressure is formed in the baking chamber, external cold air flows into the baking chamber in an accelerated mode, and therefore the oven has the rapid cooling function; and the risk that the food is excessively heated by residual heat of the baking chamber due to the fact that the user does not take out the baked food in time is avoided.

The invention discloses a server fan operation control method. The server fan operation control method comprises the following steps: the maximum CPU power consumption Pidle of a server CPU in an idle state is obtained through testing; a temperature adjusting point T1 of a fan in a pressing state and a temperature adjusting point T2 of the fan in an idle state are set; the power consumption Pcpu of the server CPU is obtained; the magnitude relation between Pcpu and Pidle is judged; if Pcpu is higher than Pidle, a CPU control temperature T control is set as T1; and if Pcpu is not higher than Pidle, the CPU control temperature T control is set as T2. As two control points are set, on the basis of satisfying the system heat dissipation and power consumption demands, the CPU superheating risk caused by instant pressing is prevented, and the stable system operation is guaranteed.

The invention relates to a refinery matched coal-to-hydrogen sulfur-tolerant shift methanation integrated process. According to the invention, the used sulfur-tolerant methanation reactor can meet methanation reactions under different loads so as to effectively avoid the risk of the overtemperature of the bed layer under a low load; compared with a high-temperature circulating methanation technology, the process of the invention has the following advantages that a circulating compressor is canceled so as to reduce the equipment investment and improve the energy recovery rate, and synthesis gassequentially passes through the sulfur-tolerant methanation reactor in a tandem manner so as to simplify the process and the system control and easily achieve good economic benefits; the pressure ofa hydrogen pipe network and the sub-circuit of the sulfur-tolerant methanation reactor are subjected to interlocked control, so that the opening degree of the subcircuit is adjusted in an online manner through the pressure to achieve the stable operation of the hydrogen pipe network so as to ensure the long-period stable operation of the oil refining device; and the load fluctuation of the gasification device due to the fluctuation of the hydrogen pipe network is eliminated so as to easily maintain the long-period stable operation of the gasification device.

The invention discloses a switch control device and method, a motor controller and a battery pack heating control system, and relates to the field of battery power. The switch control device includes: a processing module, which is used for switching the switch control cycle from the previous cycle to the current cycle, and switching the upper bridge arm switches from the three-phase bridge arms except the target upper bridge arm switch module of the previous cycle Select the target upper bridge arm switch module of the current period from the module, and / or select the target lower bridge arm switch module of the current period from other lower bridge arm switch modules of the three-phase bridge arm except the target lower bridge arm switch module of the previous period The bridge arm switch module; the processing module is also used for: controlling the on-off of the target upper bridge arm switch module and the target lower bridge arm switch module in each switch control cycle. The switch control device and method, motor controller and battery pack heating control system provided by the embodiments of the present invention can improve the safety of battery pack heating.

The invention discloses a server fan operation control method. The server fan operation control method comprises the following steps: the maximum CPU power consumption Pidle of a server CPU in an idle state is obtained through testing; a temperature adjusting point T1 of a fan in a pressing state and a temperature adjusting point T2 of the fan in an idle state are set; the power consumption Pcpu of the server CPU is obtained; the magnitude relation between Pcpu and Pidle is judged; if Pcpu is higher than Pidle, a CPU control temperature T control is set as T1; and if Pcpu is not higher than Pidle, the CPU control temperature T control is set as T2. As two control points are set, on the basis of satisfying the system heat dissipation and power consumption demands, the CPU superheating risk caused by instant pressing is prevented, and the stable system operation is guaranteed.

The invention discloses a method for improving comfort under high-voltage fast charging, a control system, a method and an automobile, and the method comprises the steps: monitoring the temperature of a battery and the temperature of a passenger compartment in real time, and controlling the charging current of the battery and an air conditioning system according to the temperature of the battery and the temperature of the passenger compartment to ensure that the temperature of the passenger compartment is within a set temperature range; and the influence on the charging time of the battery is reduced. The method is simple in logic, the whole vehicle does not need additional hardware, judgment is carried out through software logic, the battery temperature is monitored at the same time, and the overheating risk caused by the fact that the battery temperature exceeds the standard is avoided; meanwhile, in the vehicle development stage, through logic joint debugging of a vehicle control unit and a heat management controller, under the high-pressure fast charging working condition and when an air conditioner of a passenger compartment is started, the comfort of the passenger compartment is guaranteed through logic, and customer complaints caused by reduction of the comfort of the passenger compartment are avoided.

The invention relates to the technical field of bearing lubrication, in particular to a single-rod bearing for high-speed rotation, comprising: a bearing rod, a bearing sleeve and a bearing gasket, the bearing sleeve is arranged on the rolling step shaft of the bearing rod, and is located in the annular gap A number of needle rollers are installed evenly along the circumferential direction, and two adjacent needle rollers and the inner hole wall form an oil collecting cavity; the bearing gasket is sleeved on the fixed step shaft, and the rolling step shaft is equipped with a bearing gasket to limit The limit flange of the bearing sleeve moves in the axial direction. The oil inlet grooves are arranged on both end faces of the bearing sleeve and are inclined in the radial direction. The first oil hole and the oil inlet groove on the bearing rod are connected with the annular gap. The hole communicates with the second oil hole. When the bearing rotates at a high speed, the pressure difference generated by the rotation of the oil inlet can make the lubricating oil quickly enter the annular gap, and quickly discharge through the first oil hole and the second oil hole, lubricate the needle roller and take away the heat generated by the bearing in time to avoid It reduces the risk of bearing overheating and prolongs the service life of the bearing.

The invention provides a using method of an efficient energy-saving type air source heat pump. The efficient energy-saving type air source heat pump comprises a comprehensive heat supply unit, a firstheat exchanger and a second heat exchanger. The using method comprises the following steps: controlling the first heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a first bypass pipeline to defrost; controlling the second heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a second bypass pipeline to defrost; controlling the first heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a first main pipeline to take heat; and controlling the second heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a second main pipeline to take heat. The using method avoids the risks of halt of system heating and high pressure of a refrigerant compressing device.

The invention provides a data line with a timing switch protection function, which comprises a USB3.0 connector and a TYPE-C connector, and is characterized in that the USB3.0 connector is provided with a first pin, a second pin, a third pin and a fourth pin which are arranged side by side, and the fourth pin is connected in series with an IC chip, a first resistor and a timing protection chip; and a timing control circuit is arranged on the timing protection chip and is used for randomly setting the timing time, when the preset timing time is up, the timing protection chip automatically cuts off the power supply and stops the operation of the data line, and when the working duration exceeds the preset time, the timing control circuit of the timing protection chip can automatically cut off the power supply. When the data line is normally used, the data line can be disconnected at regular time and stop working during working, equipment is effectively protected from being damaged, a USB3.0 connector stops power supply, automatic protection can be achieved after long-time use, a specially-assigned person is not needed for guarding, and the normal function of a product cannot be affected by environment changes.

The invention relates to the technical field of bearing lubrication, in particular to a single-rod bearing for high-speed rotation, which comprises a bearing rod, a bearing sleeve and a bearing gasket, the bearing sleeve is arranged on a rolling step shaft of the bearing rod, a plurality of roller pins are uniformly distributed and mounted in an annular gap along the circumferential direction, and two adjacent roller pins and an inner hole wall form an oil collecting cavity; the fixed step shaft is sleeved with the bearing gasket, the rolling step shaft is provided with a limiting flange which is matched with the bearing gasket and used for limiting the bearing sleeve to move in the axial direction, oil inlet grooves which are obliquely formed in the radial direction are formed in the end faces of the two sides of the bearing sleeve, the first oil hole in the bearing rod and the oil inlet grooves are communicated with the annular gap, and the first oil hole is communicated with the second oil hole. When the bearing rotates at a high speed, lubricating oil can quickly enter the annular gap through the pressure difference generated by rotation of the oil inlet groove and is quickly discharged through the first oil hole and the second oil hole, heat generated by the bearing is taken away in time while the roller pin is lubricated, the over-temperature risk of the bearing is avoided, and the service life of the bearing is prolonged.

The invention discloses a blade deicing system and method coupled with solar energy. The system comprises a wind generating set, a separated heat pipe and a solar heat collector, the separated heat pipe is arranged in the wind generating set in a penetrating mode, the solar heat collector is arranged on the ground, one end of the separated heat pipe is connected with the solar heat collector, and the other end of the separated heat pipe is connected with the roots of blades of the wind generating set. A heat pipe structure is additionally arranged in a wind power blade unit, solar energy is extracted to the blade unit and used for heating blades and increasing the temperature of the blades, and the problem of freezing of the blades can be fundamentally solved.