Low-energy-consumption asynchronous motor

Abstract

The invention discloses a low-energy-consumption asynchronous motor which comprises an outer shell, a front end cover, a rear end cover, a rotating shaft, a cage type rotor, a stator, an insertion linkage mechanism and a rear end cover driving mechanism. According to the invention, a traditional fixed connection structure of the rear end cover and the outer shell is changed. The rear end cover sleeves the inner core ring body on the outer side of the periphery of the rear end of the outer shell in a sliding manner through the sleeving ring body on the periphery of the inner end. In addition, the heat dissipation blades are rotationally connected to the interior of the rear end cover instead of being fixed to a rotating shaft traditionally. Meanwhile, a perforated plate for mounting the rear end of the rotating shaft is additionally arranged at the rear end of the outer shell. Therefore, when the rear end cover slides at the rear end of the outer shell, the rectangular insertion cavityof the rotating block is driven to be connected with the rectangular induction plate and the rectangular insertion block in an inserted or separated mode, whether the heat dissipation blades are in linkage with the rotating shaft or not is judged, and whether the heat dissipation blades are controlled to rotate or not can be determined according to the actual situation.

Description

technical field [0001] The invention relates to a low energy consumption asynchronous motor. Background technique [0002] Asynchronous motor is a kind of induction motor, which is a type of motor powered by simultaneous access to 380V AC current. Since the rotor and stator rotating magnetic field of a three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip. Therefore, it is called a three-phase asynchronous motor; the speed of the rotor of the three-phase asynchronous motor is lower than that of the rotating magnetic field, and the rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to realize energy conversion. ; On the rotating shaft of the existing motor, in order to facilitate heat dissipation, cooling blades will be installed at the rear end of the rotating shaft. When the...

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Problems solved by technology

[0002] Asynchronous motor is a kind of induction motor, which is a type of motor powered by simultaneous access to 380V AC current. Since the rotor and stator rotating magnetic field of a three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip. Therefore, it is called a three-phase asynchronous motor; the speed of the rotor of the three-phase asynchronous motor is lower than that of the rotating magnetic field, and the rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to realize energy conversion. ; On the rotating shaft of the existing motor, in order to facilitate heat dissipation, cooling blades will be installed at the rear end of the rotating shaft. When the shaft load is small, the cooling blades are not needed to blow and dissipate heat under the condition of good heat generation. In this case, the rotating shaft keeps driving the cooling blades to rotate, which is actually an additional load and increases the load on the motor. , so it is necessary to develop a motor that can open and close cooling blades according to actual needs

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