6results about How to "Slow heating" patented technology

This invention relates to the field of welding cooling device technology, and discloses a welding cooling and protective fixture for electronic expansion valves. The fixture includes a protective housing, a baffle fixedly connected to the inner wall of the protective housing, a mold cavity formed in the inner wall of the baffle for placing the expansion valve body, and a cooling mechanism provided on the inner wall of the protective housing. The cooling mechanism includes a sealing shell, the bottom of which is fixedly connected to the inner wall of the protective housing, and the inner wall of the sealing shell contacts the outer wall of the expansion valve body for cooling the expansion valve body piping. A flow guiding cavity is formed in the inner wall of the sealing shell. This invention cools the expansion valve body piping by setting a cooling mechanism with a spiral flow channel, and by using a one-way valve inside the butt joint block to intercept the coolant when the protective housing is released after welding the expansion valve body, preventing coolant leakage and thus avoiding defects at the weld joint, thereby increasing the stability of the electronic expansion valve welding process.

The application relates to a steaming and baking equipment, which comprises a cavity assembly, a first exhaust pipeline and an exhaust structure; an exhaust cavity is formed in the exhaust structure; an exhaust port for the exhaust cavity to communicate with the outside is arranged on the exhaust structure; the exhaust structure is provided with a first air vent communicating with the exhaust cavity; the first exhaust pipeline is communicated with the first air vent and the inside of the cavity assembly respectively; a first valve is arranged in the exhaust cavity; the first valve is used for adjusting the flow of steam entering the exhaust cavity through the first air vent according to the internal air pressure of the cavity assembly; and the first valve is in a normally open state. The first valve in the normally open state is matched with the first air vent, the exhaust amount can be adjusted according to the internal air pressure of the cavity assembly, and the problem that the exhaust hole of the steaming and baking equipment in the prior art cannot change the exhaust amount according to the air pressure in the furnace cavity is solved.

The application provides a battery cover plate structure, a battery and an electric device, and relates to the technical field of batteries. The battery cover plate structure comprises a pole, a cover plate assembly and an insulation assembly. The cover plate assembly comprises a metal structural piece. The insulation assembly comprises an insulation piece and a conducting piece. The insulation piece is arranged between the pole and the metal structural piece. A local area of the insulation piece is provided with the conducting piece. The conducting piece connects the pole and the metal structural piece, and the conducting piece can be fused. The pole assembly of the embodiment is electrically connected to the metal structural piece through the conducting piece, so that the pole and the metal structural piece are in the same potential, thereby helping to shorten the voltage measurement distance between the positive pole and the negative pole of the battery. When collecting the voltage of the battery with a long distance between the positive pole and the negative pole, the voltage between the pole and the battery cover plate is measured at one of the poles, and the voltage of the battery can be measured, thereby effectively reducing the difficulty of voltage collection.

The application relates to an intelligent charging system in the field of charging. The system comprises a charging machine and a storage battery; the charging machine comprises a positive and negative pulse module connected with the storage battery, a control module, a temperature control module, a switching power supply module having one end connected with a power supply voltage and the other end connected with the control module and the positive and negative pulse module respectively; the control module is connected with the storage battery through the temperature control module; the temperature control module detects the real-time temperature of the storage battery, and when the real-time temperature of the storage battery is higher than a threshold temperature, a voltage increment value is calculated and fed back to the control module; the control module calculates an adjusted charging voltage based on the voltage increment value, and controls the switching power supply module to output the adjusted charging voltage to the storage battery; the positive and negative pulse module outputs positive and negative pulse voltages to the storage battery; the control module receives pulse signals of the positive and negative pulse module and carries out duty cycle modulation, and then outputs to the switching power supply module. The application is suitable for charging use in different seasons, avoids sulfuration failure of the storage battery, inhibits water loss of the storage battery, and improves the charging performance of the charging machine.

The application provides a refrigeration system, a refrigeration device, a control method and a readable storage medium. The refrigeration system comprises a storage chamber, a refrigeration chamber, an evaporator arranged in the refrigeration chamber and used for heat exchange with gas in the refrigeration chamber to refrigerate, a defrosting device arranged in the refrigeration chamber and used for defrosting the evaporator, an air duct, one end of the air duct being communicated with the storage chamber and the other end of the air duct being communicated with the refrigeration chamber, a gas storage chamber communicated with the refrigeration chamber, and a fan arranged in the refrigeration chamber and used for driving gas in the refrigeration chamber to flow to the air duct or the gas storage chamber. Through the technical scheme, the influence of hot gas on the storage chamber is reduced or avoided, and the preservation environment and preservation effect of food materials are ensured.

The utility model discloses a connector pin, a jack contact element and a connector terminal assembly, the connector pin comprises a first plugging part, a second plugging part and a first connecting part, the second plugging part is connected to the first plugging part, the first connecting part is connected to one end, deviating from the first plugging part, of the second plugging part, and the second plugging part is connected to the jack contact element. The first plugging part and the second plugging part are arranged along the axial direction of the connector pin, and the first plugging part and / or the second plugging part can elastically deform in the radial direction. The jack contact element comprises a first contact part, a second contact part and a second connecting part, the second contact part is connected to one end of the first contact part, the second connecting part is connected to one end, deviating from the first contact part, of the second contact part, and the connector pin is inserted into the jack of the jack contact element; the connector pin is in elastic contact with the second contact part, and the connector pin is in elastic contact with the first contact part.