65results about How to "Avoid severe fever" patented technology

The invention discloses a motorized spindle. A core shaft, a rotor fixed to the core shaft, a stator, two rear end bearings arranged at the rear portion of the core shaft, rear end bearing blocks sleeving the rear end bearings, a front end bearing arranged at the front portion of the core shaft and a front end bearing block sleeving the front end bearing are included. The part, between the two rear end bearings, of the core shaft is sleeved with a cooling cavity. The two opposite side walls of the cooling cavity are provided with a first liquid inlet channel and a first liquid discharging channel correspondingly. The parts, between the motorized spindle stator and the rear end bearings, of the core shaft are each sleeved with a heat isolation cavity, and the two opposite side walls of theheat isolation cavity are provided with a second liquid inlet channel and a second liquid discharging channel correspondingly. The front end bearing blocks are sleeved with copper insert bearings, thecopper insert bearings are each sleeved with a front end cover, the bearing blocks and the copper insert bearings are in interference fit, the copper insert bearings and the front end cover are in interference fit, and the front end cover is fastened to the front end face of the stator. The device is simple in structure and good in stability and heat dissipation performance.

The invention discloses a motor with a stator rapid heat dissipation function, comprising a casing, a stator assembly, a front end cover, a rear end cover, a main shaft and a rotor, a stator assembly is arranged on the inner wall of the casing, and the front end cover and the rear end cover are respectively connected to two ends of the casing The shell is closed, the main shaft is installed on the front end cover and the rear end cover through the double-end support of the bearing, the main shaft extends out of the front end cover as the output shaft of the motor, the rotor is installed on the main shaft, the rotor and the stator assembly are arranged radially face to face, and the stator assembly and the casing are arranged face to face. There is circulating cooling fluid between them. The invention quickly transfers the heat in the stator to the outer surface for heat dissipation through the magnetic fluid, and helps the stator to cool down quickly. Compared with the traditional heat dissipation structure, the thermal stability of the stator is better, and the flow of the magnetic fluid relies on electromagnetic drive. No external mechanical power is required, and the closed loop requires little maintenance.

The invention provides a heat-dissipation anti-loosening cable joint, belongs to the technical field of cable joints, and aims to solve the technical problems that the joint of an existing cable joint is insufficient in strength, is easy to loosen and easy to heat. The heat-dissipation anti-loosening cable joint comprises a heat dissipation connector and an insertion connector, the heat dissipation connector is provided with a male head, a miniature diaphragm pump, a heat dissipation protection cover and a miniature fan, and heat dissipation fins are fixed to the outer side of the male head; a capillary heat dissipation pipeline is arranged between the heat dissipation connector and the heat dissipation protection cover, and the insertion connector is provided with a female head, a threaded ring, a pressing sleeve, a spring plate and a spring. Conical sleeves are arranged in the heat dissipation connector and the insertion connector, cables and fixed circular truncated cones are fixed to the male connector and the female connector, and guide locking sleeves are arranged on the fixed circular truncated cones. According to the invention, heat can be quickly dissipated through the cooling fins and circularly flowing cooling liquid, and serious heating is prevented; the female head is clamped in the male head, the spring plate tightly abuts against the pressing sleeve, and a positioning boss is clamped at the end part of a guide positioning groove, so that the connection is stable, loosening is prevented, and the connection strength is improved.

The invention discloses a cooling utensil and an electric heating device for the cooking utensil. The electric heating device comprises a first inductor with the first end connected with a power supply, an IGBT with the first end grounded, a resonance coil with the first end connected with the second end of the first inductor and the second end connected with the second end of the IGBT, a first capacitor with the first end connected with the first end of the resonance coil and the second end grounded, a second capacity with the first end connected with the first end of the resonance coil and the second end connected with the first end of a third capacitor, the third capacitor with the second end connected with the second end of the resonance coil, a switch assembly with the first end connected with a first joint between the second capacitor and the third capacitor and the second end grounded, and a controller for controlling the connection or disconnection of the IGBT and the switch assembly. Thus, by switching the resonance mode of the electric heating device, the voltage zero-pass opening of the IGBT can be ensured under large power and continuous low power, and the IGBT is prevented from damage.