Motor end cover, motor shell, motor, household appliance and motor manufacturing method

Abstract

The invention provides a motor end cover, a motor shell, a motor, a household appliance and a motor manufacturing method. The motor end cover comprises a cover plate and a bearing block bulged on thecover plate, and a furnace wall is bulged on the peripheral surface of the bearing block. A copper sheet accommodating chamber is formed at a surrounding position of the furnace wall. The motor shellcomprises the motor end cover, a plastic shell which is formed outside the motor end cover in an injection molding mode, and a copper sheet placed in the copper sheet accommodating chamber. The manufacturing method of the motor comprises the steps: placing the motor end cover in an injection mold, wherein the injection mold abuts against the furnace wall for positioning, a blocking wall in the injection mold is in sealing fit with a protection wall, and the copper sheet containing chamber is blocked by the blocking wall; and carrying out injection molding in the injection mold and forming a plastic shell outside the motor end cover, wherein the plastic shell forms a copper sheet opening at the protection wall. Due to the fact that the requirement for the installation precision of the protection wall is low, the mold and the protection wall are in close fit for positioning, and the upper portion and the two sides of the copper sheet containing chamber are sealed and shielded, thereby preventing injection molding materials from leaking into the copper sheet containing chamber, reducing manual scraping steps, and improving the production efficiency.

Description

Technical field [0001] The invention relates to the technical field of motor manufacturing, in particular to a method for manufacturing a motor end cover, a motor housing, a motor, household appliances and a motor. Background technique [0002] Most of the existing home appliances, such as air conditioners and washing machines, are equipped with motors as drive units, among which plastic-encapsulated motors are one of the commonly used motors in household appliances. The existing plastic-encapsulated motor has a cast aluminum end cover. The cast aluminum end cover includes a cover plate and a bearing seat connected in the axial direction. The outer peripheral surface of the bearing seat is integrally cast with a copper sheet, which is used as a terminal to connect with the conductive tape . When processing the motor housing, the cast aluminum end cover needs to be placed in an injection mold for injection molding, and finally a plastic shell is formed outside the cast aluminum e...

AI Technical Summary

Problems solved by technology

[0003] The existing problem in the manufacture of this type of plastic-encapsulated motor is that the copper sheet needs to be shielded and sealed during injection molding to prevent the plastic from leaking onto the copper sheet; When the sheet is shielded and sealed, the mold cannot be pressed tightly on the outer surface of the bearing seat. Therefore, there is a gap between the outer surface of the bearing seat and the mold, and it is still impossible to prevent the plastic from reaching the copper sheet through the gap. The plastic on the copper sheet affects the conductivity. , and need to increase manual scraping process, lower production efficiency

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