Motor iron core, motor stator, motor and fan

Abstract

The invention relates to the technical field of motors, and discloses a motor iron core, a motor stator, a motor and a fan. The motor iron core comprises an iron core body and a plurality of tooth parts, wherein the iron core body is provided with a plurality of tooth root parts at intervals along the circumferential outer side, the radial outer ends of the tooth root parts are provided with firstcombination parts, the radial inner end of each tooth part is provided with a second combination part, and the first combination parts and the second combination parts are spliced and oppositely combined. According to the invention, the tooth root parts and the tooth parts are nested and combined with each other, and the butt joint surfaces of the first combination parts and the second combination parts are arranged at the radial extension position of the stator so as to effectively prevent the iron core from falling off; and because the magnetic circuits are transmitted in parallel along theradial direction of the tooth root part, the magnetic circuit conduction is not influenced, and the magnetic leakage condition can be effectively reduced.

Description

technical field [0001] The present application generally relates to a rotor motor, and in particular, to a motor iron core, a motor stator, a motor and a fan. Background technique [0002] Existing brushless motors are often used in low-power electrical appliances and small fans. The traditional motor uses a single-piece inner-wound motor stator. The maximum winding speed of the stator with this structure is about 1000r / min, while the outer winding speed of the stator can reach 4000r / min above, it can be seen that the winding efficiency of the entire inner wound stator structure is low, which affects the production efficiency. [0003] In the prior art, a split iron core has appeared, which can realize the winding structure of the outer winding of the stator and solve the problem of low winding efficiency. However, due to the combined structure of the split iron core itself, there are problems that the combination is not firm and the skeleton is easy to fall off. [0004]...

AI Technical Summary

Problems solved by technology

[0002] Existing brushless motors are often used in low-power electrical appliances and small fans. Traditional motors use a single piece of inner-wound motor stator. The highest winding speed of the stator with this structure is about 1000r / min, while the winding speed of the stator outer winding can reach 4000r / min or more, it can be seen that the winding efficiency of the entire inner-wound stator structure is low, which affects production efficiency

[0003] In the existing technology, a split iron core has appeared, which can realize the outer winding structure of the stator and solve the problem of low winding efficiency

However, due to the combined structure of the split iron core itself, there are problems that the combination is not firm and the skeleton is easy to fall off when combined.

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