Liquid-cooled electromagnetic induction speed controller
A technology of electromagnetic induction and speed control, which is applied to the rotating parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, etc., and can solve the problems of inapplicability, high risk of demagnetization of permanent magnets, etc.
Inactive Publication Date: 2016-01-13
南京银茂永磁节能科技有限公司
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Problems solved by technology
If the power of the motor is greater than 355 kW, its permanent magnet has a high risk of demagnetization, which is not suitable for industrial continuous production
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[0017] The present technology will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0018] It should be noted that the mechanisms, proportions, and sizes shown in the drawings of the description are only used to cooperate with specific implementation methods, so that those skilled in the art can understand the concept of the technology more clearly, and are not intended to limit the protection scope of the technology. Any modification of structure, change of proportional relationship or adjustment of size shall still be included in the scope of protection of this technology without affecting the efficacy and purpose of this technology.
[0019] The specific structure of this embodiment is as figure 1 As shown, the upper part of the casing 1 is provided with a coolant tank 3, and the coolant inlet 4 is opened on the coolant tank. The lower part of the casing 1 is provided with a cooling liquid collection tank 15 and...
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The invention provides a liquid-cooled electromagnetic induction speed regulator which can meet the requirement for heat dissipation of a large-power electromagnetic induction speed regulator. The electromagnetic induction speed regulator can be applied in a large-power motor system. The liquid-cooled electromagnetic induction speed regulator comprises a driving rotor and a driven rotor. The driven rotor is in sliding connection with an output shaft in the axial direction. The driving rotor and the driven rotor are located inside a machine shell. A fan cover comprises an annular plate and a cylinder. A fan blade is located between one end of the driving rotor and the annular plate. An air inlet opposite to an air gap is formed in one end of the driving rotor. An air inlet channel is formed between the cylinder and the driving rotor. When the fan blade and the fan cover rotate along with the driving rotor, one part of air enters the air gap through the air inlet to be blown to the other end of the driving rotor, and the other part of air is blown to the other end of the driving rotor along the periphery of the driving rotor through the air inlet channel. A water outlet opposite to the periphery of the driving rotor is formed in a cooling liquid box on the machine shell. A water leakage hole communicating the periphery of the driving rotor with the air gap is formed in the driving rotor.
Description
technical field [0001] The technology relates to an electromagnetic induction speed regulating machine, in particular to a liquid-cooled electromagnetic induction speed regulating machine. Background technique [0002] At present, in large industrial enterprises, such as chemical industry, cement, metallurgy and other industries, a large number of frequency converters are used in production due to the needs of the production process and the purpose of energy saving. Among them, the motors above 200 kW are mostly high-voltage motors. Especially for motors with a rated power above 400 kW, the voltage is basically 6000V or 10000V. The high-voltage frequency converter matched with the high-voltage motor has many disadvantages, mainly including: complex system, difficult maintenance and high cost. In addition, the harmonics it generates will pollute the power grid. [0003] For the electromagnetic induction speed controller, because of its simple structure, convenient maintena...
Claims
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IPC IPC(8): H02K1/27H02K1/32
Inventor 高学田高超朱寅生
Owner 南京银茂永磁节能科技有限公司