70results about How to "Improve air cooling efficiency" patented technology

A heating, ventilation, air conditioning, and refrigeration system includes one or more variable frequency drives (VFD) controlled by one or more VFD controllers, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select from a plurality of power sources based on availability of one or more power sources and time so as to maximize the economic efficiency of operating the system.

A forming method for a heat dissipating structure is provided. According to the method, an extrudate is formed by extrution molding, wherein the extrudate includes protruding bending portions extending in parallel. Fins are extruded monolithically on the bending portions. One or more cut channels are formed by cutting the fins and the extrudate with a cutting tool. The cutting tool cuts the fins for forming a notch on each fin at first, and then cuts the bending portions for forming a cut-through slot on each bending portion, wherein each cut-through slot is formed for cooling air flowing through two side of the extrudate. By cutting the bending portions and the fins by the cutting tool at the same time, a large number of cut-through slots are formed in despite of the existence of the fins, and the performance of heat dissipation is enhanced.

The invention relates to an air fryer which comprises a machine body with a cooking cavity formed inside, a fryer body capable of going in and out of the cooking cavity and an electric heating devicearranged in the machine body and located above the cooking cavity, and the fryer body comprises a first fryer body and a second fryer body. An integrated oven cavity inner container is arranged in a cooking cavity of the machine body, a first containing cavity and a second containing cavity which can contain the first fryer body and the second fryer body respectively are formed in the integrated oven cavity inner container, the first fryer body is arranged in the first containing cavity, and the second fryer body is arranged in the second containing cavity. A gap is formed between the side wall of the opening of the first containing cavity and the adjacent side wall of the opening of the second containing cavity, and the gap forms a cold air duct. The air fryer has the advantages that theintegrated cooker cavity inner container structure is adopted, the material cost is saved, the assembling efficiency is improved, the first fryer body and the second fryer body which are independent are arranged, the cold air duct is arranged between the two containing cavities, heat dissipation of the cooker body is facilitated, and the working environment of components such as a motor in the cooker body is guaranteed.

A vehicle 1000 has two pipings 60 and 62 arranged to discharge an exhaust gas from a fuel cell stack 10 to the outside of the vehicle 1000. An outlet provided at an end of the piping 60 is located at an underfloor position in a rear portion of the vehicle 1000, while an outlet provided at an end of the piping 62 is located at a roof rear end of the vehicle 1000. When the outlet provided at the end of the piping 60 is blocked or when there is a potential for such blockage, the outlet provided at the end of the piping 62 is used to discharge the exhaust gas from the fuel cell stack 10 to the outside of the vehicle 1000. This arrangement ensures continuous drive of the vehicle 1000 even in a specific environment where any of various obstructing objects as the cause of blockage of the outlet is present in the surroundings of the vehicle 1000.

The invention provides a wheel hub heat treatment device and treatment method. It is designed in the technical field of heat treatment, including a first box-type resistance furnace, a quenching pool, a second box-type resistance furnace and an air cooling device. The first box-type resistance furnace and the The second box-type resistance furnace has the same structure; each box-type resistance furnace includes a furnace body and a furnace. , the top furnace wall and the bottom furnace wall; the box-type resistance furnace is used to heat the workpiece, the quenching pool is used to rapidly cool the workpiece, and the air cooling device is very effective in air cooling the workpiece high.

The invention discloses an on-line air-cooled quenching device for aluminum castings, which includes an air-cooling chamber, a transmission mechanism and an air-cooling device. The air-cooling chamber is provided with a transmission mechanism, and the transmission mechanism is equipped with a placement device for placing the aluminum casting body. The rectangular groove dug on one side of the air-cooled chamber is equipped with a device, the top of the air-cooled chamber is equipped with an air-cooled device, and the glue is passed through the rectangular groove dug at the front end of the air-cooled chamber. A hollow glass plate is bonded, four sets of support legs arranged in a rectangular array are welded at the bottom of the air-cooled chamber, and an insulating layer is bonded to the outer periphery of the air-cooled chamber by glue. The online air-cooling and quenching device for aluminum castings can not only reduce the possibility of cold cracking, but also save time and effort, and has high air-cooling efficiency.

The invention provides a lamp box and a color selector. The lamp box comprises a box body, a plurality of lamps, a fan and an air duct; wherein the box body is provided with a closed accommodating space; the plurality of lamps are arranged in the accommodating space in parallel; the fan is arranged in the accommodating space and provided with an air suction opening and an air exhaust opening, andthe air suction opening is communicated with at least the part, occupied by the multiple lamps, of the accommodating space. The air duct is arranged in the accommodating space and is adjacent to the plurality of lamps; the air duct comprises an air inlet and a plurality of air outlets; the air inlet is formed in one end of the arrangement direction of the air duct; the air inlet is communicated with the air outlet, the air outlets are formed in the wall, adjacent to the lamps, of the air duct, the air outlets are adjacent and face the corresponding lamp, the cross section area of each air outlet is smaller than that of the air inlet, and the sum of the cross section areas of all the air outlets is smaller than that of the air inlet. Therefore, the heat dissipation efficiency of each lamp is improved, the temperature consistency, the working stability and consistency of all the lamps are improved, and the temperature uniformity of the box body is improved.