Motor with internal cooling device in rotor shaft
A cooling device and rotor shaft technology, applied in the field of motors, can solve the problems of reduced motor efficiency, endangering the life of coil insulation materials, temperature rise, etc., and achieve the effect of improving cooling and efficiency
Inactive Publication Date: 2012-09-26
郑亚华
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Problems solved by technology
First of all, it will cause the iron core to release a large amount of Joule heat to increase the temperature, thereby endangering the life of the coil insulation material, and in severe cases, the insulation material can be burned immediately
Secondly, eddy current heat will consume additional energy (called "eddy current loss"), which will reduce the efficiency of the motor
Method used
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Embodiment Construction
[0015] figure 1 Among them, the rotor (1) and the rotor shaft (2) are connected, and the self-fan blades (3) are connected to the end of the flow pipe (4).
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The invention relates to a motor with an internal cooling device in a rotor shaft, which has the beneficial effect that the cooling efficiency of the motor is improved by arranging a circulating pipeline in the rotor shaft and an internal cooling technology of fan blades based on the integration of such technologies as eddy current, leakage flux and skin effect.
Description
technical field [0001] The invention relates to a motor with an internal cooling device installed in the rotor shaft, which solves the internal cooling mode of the motor by providing a flow pipe and self-fan blades in the rotor shaft. Background technique [0002] As we all know, since Oersted invented it in 1820, and then Ampere summed up the mechanical force of current in a magnetic field, the prototype of the electric motor appeared in the laboratory. Similarly, since Faraday proposed the law of electromagnetic induction in 1831, various prototypes of generators have appeared one after another. In 1885, Ferraris proposed the model of the two-phase AC asynchronous machine, which was applied to a certain extent in the following years. By 1888, Dolivo-Dobrovolsky proposed a three-phase system and a three-phase asynchronous machine, which laid the foundation for the industrial application of AC motors. Since the three-phase system began to be used in 1891, industrial power ...
Claims
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IPC IPC(8): H02K1/32H02K9/06
Inventor 郑亚华
Owner 郑亚华