8results about How to "Avoid excessive temperature rise" patented technology

This invention discloses a control method for HC injection, belonging to the field of engine aftertreatment technology. It addresses the technical problems of DPF carrier damage and failure, difficulty in temperature rise, or white smoke emission caused by high temperatures during vehicle operation due to complex vehicle conditions. The method involves: obtaining the engine's actual speed and load; querying the maximum HC injection MAP table based on the actual speed and load to obtain the first HC injection flow rate; obtaining the engine's actual throttle opening change rate; querying the throttle opening change rate correction MAP table based on the actual throttle opening change rate to obtain the throttle opening change rate correction coefficient; correcting the first HC injection flow rate based on the throttle opening change rate correction coefficient to obtain the second HC injection flow rate; selecting the minimum value among the first HC injection flow rate, the second HC injection flow rate, and the actual required injection quantity as the target injection flow rate; and controlling the engine to perform HC injection based on the target injection flow rate.

The application discloses a kind of electric pressure cooker abnormal cooking protection method and related components, it is related to household appliance control technical field, first determine the initial temperature of food to be cooked after electric pressure cooker starts, then according to initial temperature adjustment electric pressure cooker cooking protection duration, and initial temperature and cooking protection duration are negatively correlated.Determine cooking protection duration after control electric pressure cooker to first preset power starts heating, when the actual temperature of the bottom of electric pressure cooker reaches cooking protection duration and target temperature is still not reached during heating duration, it is proved that food to be cooked belongs to not easy to heat food, so the power of electric pressure cooker is reduced to second preset working power, to avoid the problem that electric pressure cooker is constantly increased in power eventually leading to electric pressure cooker temperature rise too high because of tardy reach cooking setting temperature.

The utility model relates to the technical field of kitchen appliances, in particular to an electric cooker. The electric cooker comprises a heating disc and a panel, and the heating disc is integrally provided with a mounting ring in the circumferential direction. A mounting hole is formed in the panel, a limiting ring is arranged on the panel in the circumferential direction of the mounting hole, the heating disc penetrates through the mounting hole, the mounting ring is supported on the panel, the side wall of the limiting ring is located between the mounting ring and the heating disc, and the horizontal distance between the limiting ring and the mounting ring is smaller than that between the limiting ring and the heating disc. The limiting ring is closer to the mounting ring and far away from the heating disc, and the temperature of the mounting ring is lower than that of the heating disc, so that the heat transfer amount from the heating disc to the limiting ring is reduced, the heat transfer amount from the limiting ring to the panel is further reduced, and the temperature rise of the panel is effectively reduced. Meanwhile, even if the heating disc is not installed in place due to dimensional tolerance and installation errors, the heating disc cannot make direct contact with the limiting ring, the situation that the heating disc directly transfers heat to the panel through the limiting ring is avoided, and therefore the situation that the temperature of the panel is too high is avoided.

The utility model relates to a high-voltage measurement and protection device of an electric power system, in particular to a supporting type large creepage distance current transformer. Comprising an insulator and a coil device body sealed in the insulator, primary and secondary wiring terminals are arranged at the top and bottom of the insulator, umbrella skirts are arranged on the outer surface of the insulator, and front and rear side voltage-sharing nets are arranged at the lower end in the insulator; the coil device body comprises an iron core, a secondary winding and a primary winding, wherein the secondary winding and the primary winding are wound on the iron core from inside to outside. An insulating layer and a protective layer are wrapped on the iron core. The secondary winding is supported by a secondary winding support, an insulating paperboard and two layers of polyester films are arranged at the two ends of the secondary winding in a padded mode, a polyester film is arranged between secondary wire layers of the secondary winding in a half-stacked mode, an insulating layer, a shielding layer and a protective layer are wrapped on the outer side of the secondary winding, and a polyester belt, a polyurethane plate and semi-conductive crepe paper are wrapped on the outer side of the primary winding. The utility model has the advantages of small volume, low cost, large surface creepage distance, high dynamic thermal stable current, high metering precision, moisture resistance, condensation resistance and electricity larceny prevention.

This application discloses a transmission-type high-power laser emitting system, relating to the technical field of high-power laser systems. The system's laser incident end is connected to a high-power fiber laser for receiving the laser beam, and its laser emitting end is used to focus the laser beam to a target location. The system includes a laser emitting mirror group, an emitting mirror tube, a focusing motor, and a control circuit board. The laser emitting mirror group is disposed inside the emitting mirror tube and includes a laser emitting eyepiece group and a laser emitting objective lens group. The laser emitting eyepiece group is located at the incident end, and the laser emitting objective lens group is located at the laser emitting end. The focusing motor is used to move the laser emitting eyepiece group through a mechanical connector to achieve system focusing. The control circuit board is used to control the focusing motor to rotate and focus according to a focusing signal. The technical solution of this application has a simple system structure, relatively high temperature stability, and can achieve directional focusing of a high-power laser beam over a long distance.

This invention discloses a liquid-cooled circulating cooling battery swapping cabinet for liquid-cooled batteries, relating to the technical field of battery thermal management and battery swapping equipment. The invention includes: a guide slide installed inside the cabinet; a battery swapping chamber slidably connected to the inner wall of the guide slide; an elastic telescopic rod fixedly connected to the inner wall of the cabinet; an electric telescopic rod fixedly connected to the left side of the battery swapping chamber; and a heat dissipation mechanism for ventilation and heat dissipation provided on the inner wall of the battery swapping chamber. This invention can cool the battery during the battery swapping process of new energy liquid-cooled batteries, avoiding excessively high battery temperatures and low swapping efficiency due to long swapping times. The cooling medium circulates in a closed loop within the tank, significantly increasing the heat exchange area and thermal conductivity between the battery and the cooling medium, preventing localized high temperatures and rapid temperature rise, and improving charging safety and battery lifespan.

This invention relates to the field of integrated design of power electronic converters and magnetic components, and discloses an application method of three-phase PFC integrated magnetic technology, including: configuring excitation windings in the independent magnetic circuit branches of the magnetic core so that the excitation currents of each phase differ by a phase angle of 120° on the time axis; establishing a magnetic flux balance path in the common area inside the magnetic core, and forming a virtual magnetic neutral point with equal magnetic potential by utilizing the spatial vector synthesis and instantaneous polarity cancellation of the fundamental magnetic flux; setting a non-uniform magnetoresistive layer between the side column and the middle column to establish a gradient magnetoresistive distribution field, guiding the high-frequency ripple magnetic flux to be constrained within a specific leakage magnetic path, and orthogonally distributed with the main energy conversion path in electromagnetic space. This invention achieves electromagnetic decoupling of the inductance parameters of each phase of the integrated magnetic component by constructing a virtual magnetopotential zero point and orthogonal magnetic circuits, maintaining the independence of dynamic response, eliminating cross-phase parameter disturbances, and reducing the overall volume of the magnetic component.

This invention relates to the field of gas desulfurization technology, specifically to a method for gas desulfurization. The method includes: combining feed gas and desulfurization gas to obtain a mixed feedstock, contacting it with a first oxygen-containing gas for a first oxidation; performing a first condensation and phase separation on the first oxidation product stream; subjecting the condensed gas stream to a second oxidation with a second oxygen-containing gas; performing a second condensation and phase separation on the second oxidation product stream; and combining a portion of the product gas as desulfurization gas with the feed gas to form a mixed feedstock. The first oxidation temperature is at least 5-80°C higher than the second oxidation temperature. This invention, through a two-stage oxidation-condensation phase separation process where the first oxidation temperature is higher than the second oxidation temperature, treats the mixed feedstock containing feed gas and desulfurization gas. This ensures that the process operates under constant pressure throughout the entire process and directly yields high-quality purified natural gas and sulfur, thereby reducing system investment and operating costs, resulting in significant economic and social benefits.