Motor rotor

Abstract

The invention discloses a motor rotor which comprises a motor housing, a jointing member, a rotating shaft and a hub, wherein the motor housing is mutually jointed with the jointing member, the jointing member is provided with a first end face and a second end face which are opposite, the jointing member can be provided with a supporting part, a riveting part and a shaft hole, the supporting part and the riveting part are arranged between the first end face and the second end face and support against the motor housing, the rotating shaft is combined with the jointing member, the hub integrally wraps the motor housing and the jointing member in an injection molding manner and is provided with an auxiliary wrapping part, and the auxiliary wrapping part wraps the first end face, the second end face or riveting part of the jointing member. Therefore, the hub can be prevented from dropping from the jointing member.

Description

technical field [0001] The present invention relates to a motor rotor, especially a motor rotor that can be applied to a motor structure for driving and rotating the stator of the motor. Background technique [0002] Please refer to figure 1 As shown, the patent No. I279063 "Fan and its Rotor" was invented for Taiwan, China. This patent case discloses a relatively common existing rotor 9 . The rotor 9 includes a joint 91 , an impeller 92 and a rotating shaft 93 . The engaging member 91 has a flange portion 911 ; the impeller 92 is integrally formed on the outer periphery of the engaging member 91 by injection molding, and the impeller 92 is fitted with the flange portion 911 of the engaging member 91 ; One end is connected to the joint piece 91 , and is riveted to a motor housing 94 by means of the joint piece 91 . Therefore, the rotor 9 can be applied to a motor structure. When the stator of the motor structure drives the rotating shaft 93 to rotate, the impeller 92 can b...

AI Technical Summary

Problems solved by technology

However, when the impeller 92 of the conventional rotor 9 is integrally formed on the outer peripheral edge of the joint member 91, the impeller 92 is engaged with the joint member 91 only by the flange portion 911 of the joint member 91 engaging with the impeller 92. , but if the rotating shaft 93 is riveted to the motor housing 94 by means of the joint 91, the joint 91 is not riveted to the motor housing 94 (that is, the position indicated by the arrow A1 in the drawing), because the joint The end surface of the member 91 facing the flange portion 911 (that is, the position indicated by the arrow A2 on the drawing) is not integrally covered and combined by the impeller 92; therefore, when the impeller 92 rotates for a long time, it is still easy to cause the joint A loose situation is formed between the impeller 91 and the impeller 92, thereby generating noise; it may even affect the combination of the impeller 92 and the joint 91, and it is impossible to ensure that there is better verticality or concentricity between the rotating shaft 93 and the impeller 92

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