8results about How to "Active cooling" patented technology

This application discloses a heat dissipation system for electronic devices, comprising: a liquid cooling plate; microchannels disposed within the liquid cooling plate for containing a cooling medium; a circulation mechanism disposed on the liquid cooling plate and communicating with the microchannels to circulate the cooling medium within the microchannels; and a fan disposed on the liquid cooling plate. As the cooling medium flows within the microchannels, it conducts heat while simultaneously carrying it away, achieving "flow transport" of heat. Simultaneously, the microchannels and the liquid cooling plate have a larger contact area, making it easier for heat transferred from the electronic device to the liquid cooling plate to be conducted to the cooling medium. The fan, disposed on the liquid cooling plate, forms active air convection. This application combines the active flow heat dissipation of the microchannels with the active air convection heat dissipation of the fan, ensuring continuous active heat transport and dissipation throughout the process, resulting in a fast response and significantly improved heat dissipation efficiency.

The utility model discloses an aluminum alloy holding furnace convenient to replace electric heating rods, and relates to the technical field of aluminum alloy holding furnaces, the aluminum alloy holding furnace comprises an aluminum alloy holding furnace, a support assembly is arranged in the aluminum alloy holding furnace, a protection assembly is arranged at the top of the aluminum alloy holding furnace, and an electric heater is arranged on the surface of the protection assembly; the protection assembly comprises a protection unit and a heat dissipation unit. The protection unit comprises a sealing cover, a protection cover and an access door. The electric heater is installed at the top of the furnace body in a vertical insertion mode, the electric heater is convenient to disassemble, the structure of the furnace body does not need to be integrally damaged, continuous use is facilitated, continuous production is achieved, an oblique insertion type furnace needs more complex disassembly procedures due to limitation of a tilting mechanism, mechanical moving parts (such as a tilting device) are reduced due to vertical layout, and the production cost is reduced. The coupling between the heater and a movement mechanism is reduced, and element vibration or abrasion caused by frequent pouring of molten aluminum is avoided.

The utility model relates to the technical field of child furniture, solves the problems that a waist stool in the prior art is poor in heat dissipation effect, lacks initiative and is not intelligent, and provides a breathable airflow guide structure and a waist stool, the breathable airflow guide structure comprises a breathable piece, a shell and a heat dissipation assembly; wherein the ventilation piece is provided with a ventilation part penetrating through the thickness of the ventilation piece, the ventilation part is provided with a contact surface facing the back side of the baby and a human body binding surface arranged opposite to the contact surface, and a plurality of ventilation holes are formed in the contact surface and / or the human body binding surface; an air inlet and an air outlet are formed in the shell, and the ventilation piece is connected with the shell; the heat dissipation assembly is arranged in the shell and is configured to drive airflow to flow, so that a first airflow channel is formed between the air hole and the air inlet, and a second airflow channel is formed between the air inlet and the air outlet. The waist stool disclosed by the utility model can actively dissipate heat by arranging the breathable airflow guide structure, and has intelligence.

The utility model discloses a self heat dissipation type hydraulic oil cylinder, which relates to the technical field of hydraulic oil cylinders, and comprises a cylinder barrel and a piston rod sleeved in the cylinder barrel, one end of the piston rod far away from the cylinder barrel is connected with a hinge joint, the outer wall of the cylinder barrel is connected with an air box, and the inside of the air box is connected with a driven piston plate in a sliding mode. A driven rod is connected between the hinge joint and the driven piston, the driven rod is in sliding connection with the air box, an air outlet pipeline is arranged in the cylinder barrel and connected with the interior of the air box, and an air outlet extending out of the cylinder barrel is formed in the side, away from the air box, of the air outlet pipeline. The self-heat-dissipation hydraulic oil cylinder has the function of actively driving airflow to flow on the inner wall of the cylinder barrel, can actively dissipate heat of the cylinder barrel, does not need an external cooling device, can act along with stretching and retracting of the piston rod, and avoids energy consumption.

The invention relates to a cutter cooling and self-cleaning system which comprises a cutting mechanism, a refrigeration mechanism, a visual identification detection mechanism, an automatic cleaning mechanism and a controller, the cutting mechanism comprises a first driving part, a cutter and a transmission shaft, the transmission shaft is installed at a cutter shaft hole, and the driving end of the first driving part is connected with the transmission shaft; the refrigerating mechanism is arranged close to the cutter and is used for cooling the cutter; the visual identification detection mechanism is adjacent to the cutter and is used for detecting whether foreign matters exist on the surface of the cutter; the automatic cleaning mechanism comprises a support, a second driving piece and a scraper, and the second driving piece is installed on the support and is in transmission connection with the scraper. And the first driving piece, the refrigeration mechanism, the visual identification detection mechanism and the second driving piece are all connected with the controller. According to the invention, real-time detection and automatic cleaning of foreign matters on the surface of the cutter can be realized, manual intervention and downtime are reduced, continuity and stability of production are maintained, temperature rise of the cutter is effectively inhibited, and the processing quality of filter sticks is effectively improved.

The exhausting and cooling air shaft comprises a shell, a radial bearing is arranged in the shell, a rotating shaft is arranged in the radial bearing, a hollow rotating shaft is arranged in the rotating shaft, a grinding wheel connecting rod base is arranged at one end of the rotating shaft, an impeller is arranged at the end, away from the grinding wheel connecting rod base, of the rotating shaft, and a cooling device is arranged on the rotating shaft. A thrust bearing is arranged on one side of the grinding wheel connecting rod base, and a silencing ring is arranged on the outer side of the impeller. Airflow is discharged through the impeller at the tail end of the hollow rotating shaft to increase the flowability of the airflow, so that the temperature is reduced; through an air inlet of the thrust bearing, a throttling air nozzle and a closed air cavity, air vibration interferes with air hammer excitation generated between the damping thrust bearing and the flange, and the effects of reducing vibration of the main shaft and improving high-frequency harmonic waves are achieved. The exhaust groove, the exhaust ring groove and the impeller are matched, flowing of airflow in the hollow interior of the rotating shaft is accelerated, the temperature is reduced, and through rotation of the impeller, air in the axis of the rotating shaft can be pumped out for active cooling.

The invention relates to the field of battery packs, in particular to a protective cylindrical lithium battery pack. Comprising a shell; the shell is detachably connected with a cover plate, a control system is arranged in the shell, the control system comprises a control circuit board, and an encoder is integrated on the control circuit board. The mounting frame is clamped and fixed through the clamping plates, the problems that in the using process of an electric vehicle, the mounting frame shakes or displaces, consequently, positive and negative electrode wiring ends of a lithium battery are loosened and broken, normal use of the lithium battery is affected, and even the risk that the battery is out of control is caused are solved, and meanwhile the problem that in the prior art, the mounting frame is fixed through screws, and the mounting frame is damaged is solved. And as the screw and the threaded hole are slipped, the waste battery is difficult to disassemble, and the new battery is difficult to install.

The invention belongs to the technical field of motors, and particularly relates to a high-speed fan motor and a high-speed blower, the high-speed fan motor comprises a multi-channel machine shell which is arranged to be of a three-layer cylindrical structure which is coaxially arranged inside and outside and is nested in a staggered mode, and an annular columnar main air channel is formed between an inner shell and an outer shell; the inner shell is provided with a first radial rib for connecting the inner shell with the outer shell; and a cylindrical secondary air duct is formed between the inner shell and the bearing mounting sleeve, and a second radial rib for connecting the inner shell and the bearing mounting sleeve is arranged between the inner shell and the bearing mounting sleeve. The device comprises an airflow acceleration structure, the airflow acceleration structure produces a remarkable low-pressure area in a corresponding area of an iron core of a main air channel, air in a secondary air channel is strongly sucked to flow through a coil gap and a magnetic gap at a high speed, and active and efficient cooling of a heating core is achieved. The temperature of the iron core and the coil is reduced, the efficiency of the motor is higher, supplied current can be reduced, radiation and heat transmitted to the bearing are reduced, the bearing is cooled, and the service life of the bearing is prolonged.