7results about How to "Avoid overheating and burning" patented technology

The utility model discloses a special furnace end for a commercial fuel oil pot furnace, which comprises a furnace end seat, a placing cavity is arranged on the end face of the furnace end seat, an ignition cover is integrally formed on the end face of the furnace end seat, an upper flame arrester, a lower flame arrester and a flame distributor are arranged in the placing cavity, and a rotating mechanism is arranged in the ignition cover. The outer walls of the upper and lower flame arresters are cover bodies, annular flanges are integrally formed on the attached edge surfaces, and the rotating mechanism is used for driving the upper flame arresters to rotate relative to the positions of the lower flame arresters. By means of meshing transmission of the gear and the annular gear disc, the upper slow fire device is driven to rotate relative to the lower slow fire device, the overlapping area of the first fire outlet hole and the second fire outlet hole is dynamically adjusted, accurate control over the flame jetting amount is achieved, and compared with a traditional furnace end, the furnace end can stably output slow fire needed by slow stewing with small fire, and the energy consumption is reduced. The cooking liquor is effectively prevented from boiling and overflowing or food materials are prevented from being locally overheated and scorched, and the cooking quality of soup cooking and porridge cooking is remarkably improved.

The application discloses a kind of over-temperature protection circuit and the power operational amplifier with over-temperature protection function, over-temperature protection circuit includes temperature detection unit, control module and signal output unit, temperature detection unit is used to export corresponding temperature response voltage according to ambient temperature;Control module is used to export the over-temperature opening voltage greater than third voltage threshold when the temperature response voltage is higher than first voltage threshold to signal output unit, and until the temperature response voltage is lower than second voltage threshold, stop outputting over-temperature opening voltage or make over-temperature opening voltage lower than third voltage threshold;Signal output unit is used to export over-temperature protection current signal when over-temperature opening voltage is greater than third voltage threshold.The application can export over-temperature protection current signal to protected device when ambient temperature is too high, and has hysteresis reaction function when ambient temperature decreases, avoid frequently switching working state.

The utility model discloses a kind of electric connection unit and the electric connection structure formed by it, it is related to low-voltage power distribution equipment technical field, electric connection unit includes wiring terminal, electric connection component and connecting row, electric connection component includes contact unit, mouth opening opening and closing limiting mechanism and heat dissipation structure, contact unit one end is electrically connected with wiring terminal, contact unit other end is provided with contact mouth opening, contact mouth opening is used for being pluggable with connecting row in, and in connecting state with connecting row electrical communication;Mouth opening opening and closing limiting mechanism is worn on contact unit, can make contact mouth opening clamp connecting row;Heat dissipation structure is set on mouth opening opening and closing limiting mechanism or contact unit, heat dissipation structure can be heat dissipation to contact unit, heat dissipation is good, improve the operation safety and reliability of equipment.Electric connection structure contains above-mentioned electric connection unit, can be used under the condition of large current, improve the operation safety and reliability of electric connection structure simultaneously.

The invention provides a rotor assembly of a self-starting permanent magnet auxiliary synchronous reluctance motor and a motor, the rotor assembly comprises a rotor iron core and permanent magnets, the rotor iron core comprises an outer layer filling groove, an inner layer filling groove, permanent magnet grooves, a shaft hole and a rotor excircle, the shaft hole is located at the central axis position of the rotor iron core, and the permanent magnet grooves are located in the outer layer filling groove. The permanent magnet grooves are located in the periphery of the shaft hole so that the permanent magnets can be arranged in the permanent magnet grooves, the inner-layer filling grooves are located between the permanent magnet grooves and the outer circle of the rotor, and the outer-layer filling grooves are located between the inner-layer filling grooves and the outer circle of the rotor. The permanent magnet grooves, the inner-layer filling grooves and the outer-layer filling grooves form a magnetic barrier layer in the radial direction of the rotor, and the inner-layer filling grooves and the outer-layer filling grooves are filled with conductive conductors. According to the self-starting permanent magnet auxiliary synchronous reluctance motor, the problem of low starting torque of the self-starting permanent magnet auxiliary synchronous reluctance motor in the prior art can be solved.

A power supply output protection structure includes a power output port and a working management circuit. The power output port includes multiple power supply pins connected in parallel. The working management circuit individually detects the current of each of the multiple power supply pins and protects the power output port based on the detection results. This prevents uneven current distribution during power output, which could lead to overload on some of the multiple power supply pins and damage to the power output port.

The application belongs to the technical field of cable connection fittings, and particularly relates to a shielded separable cable fitting with a temperature measuring function, which comprises the following scheme: a clamping mechanism, a hand holding shell fixedly arranged in the middle of the clamping mechanism, a protective shell fixedly arranged at the end of the clamping mechanism, a neodymium magnet embedded in the middle of the protective shell, a check mechanism arranged at both ends of the clamping mechanism, the clamping mechanism comprising: an insulating shell, the outer surface of the insulating shell fixedly arranged at the end of the protective shell, a metal cylinder, the metal cylinder nested in the middle of the insulating shell, an internal thread, the internal thread open arranged on the inner wall of both ends of the metal cylinder, a metal ring, the metal ring fixedly sleeved on the inner wall of the metal cylinder, and a metal plate, the outer surface of the metal plate fixedly arranged on the inner wall of the metal ring. The worm and gear self-locking clamping is adopted, the worm and gear transmission structure is adopted in the never-loose check mechanism, and the worm and gear transmission structure has the characteristics of one-way driving and reverse self-locking.

The utility model discloses a LED-UV curing system for high -speed rotary machine. The utility model relates to curing system technical field, and this includes frame, control system and at least 1 curing unit of installing on the frame, the curing unit includes first curing module and second curing module, first curing module and second curing module all are provided with LED-UV lamp and cooling system, and first, second curing module is distributed along the L shape transmission path of the printing material before and after, and the LED-UV lamp in each curing module is opposite arrangement with cooling system, and the passage for the printing material to pass through is formed between the two, and the printing material passes through the corresponding passage of first curing module, second curing module in proper order, and the LED-UV lamp of first, second curing module acts on the printing material double face in proper order, and the printing material double face is cured. By setting first, second curing module can be cured in proper order to the printing material double face, and the curing demand of adaptation double -sided printing or permeability material is improved production efficiency significantly.