A square motor without casing

Abstract

The invention discloses a square motor without a casing, which comprises a left end cover, a stator, a rotor and a right end cover. The cover is provided with four screw holes corresponding to the small round holes of the stator core and four blind holes corresponding to the pin holes of the stator core; the right end cover is provided with small holes corresponding to the stator core. The four small round holes corresponding to the round holes and the four blind holes corresponding to the pin holes of the stator core; the four bolts pass through the small round holes of the right end cover and the small round holes of the stator core in turn and connect with the bolts of the left end cover. Hole matching; after the four pins pass through the pin holes of the stator core, the two ends are respectively placed in the blind holes of the left end cover and the blind holes of the right end cover. The invention has the advantages of simple structure, convenient processing and assembly, low cost, accurate positioning, and can ensure the concentricity of the stator and the rotor.

Description

technical field [0001] The invention relates to the field of motors, in particular to a square motor, in particular to a casing-less square motor. Background technique [0002] Existing motors are roughly divided into two categories: cylindrical and square. Ordinary cylindrical motors usually have a casing, and its structure is as follows figure 1 , 2 shown. The motor includes a left end cover 1, a housing 4, a stator 5, a rotor 6 and a right end cover 9, the stator 5 and the rotor 6 are placed in the housing 4, and the left end cover 1 and the right end cover 9 are connected to two ends of the housing 4 Both ends are provided with circular spigots 3 and 8 at the joints, and the two spigots 3 and 8 are concentric to ensure the concentricity between the outer circle of the rotor and the inner hole of the stator. [0003] However, there is no shell square motor, because there is no shell, and the stator only has silicon steel sheets, so there is no way to produce the notch...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this structure is that the stator core is 8-10mm longer than the rotor core (that is, the two ends are 4-5mm long respectively) for the positioning of the inner ring and outer circle of the left and right end covers, which wastes materials, and increases the coil length and resistance. Copper consumption increases, efficiency decreases, and motor performance deteriorates

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