Stretched iron end cover structure used for roller washing machine series excited motor

Abstract

The invention discloses a stretched iron end cover structure used for a roller washing machine series excited motor. The stretched iron end cover structure comprises a front end cover and a rear end cover which are manufactured with the cold plate stretching technology. The front end cover comprises a front end cover body and front installation pin supports. The front end cover body and the front installation pin supports are of an integrated structure. Front installation pin steel pipes are welded to the front installation pin supports. The rear end cover comprises a rear end cover body and a rear installation pin support. Rear installation pin steel pipes are welded to the two ends of the rear installation pin support. The rear installation pin support is fixed to the rear end cover body through rivets. According to the stretched iron end cover structure, the front end cover and the rear end cover are ingeniously decomposed, the end cover structure is accordingly achieved by drawing cold plates, aluminum end covers universal on the existing market can be directly replaced under the condition that the structure size of any other existing part is not changed, the defect that the strength of BMC case end covers is insufficient can be overcome, and the material cost of the end covers is reduced; meanwhile, the national environment protection requirement is met, and the aim of achieving three functions is achieved.

Description

technical field [0001] The invention relates to the field of a drum washing machine series motor, in particular to a stretched iron end cover structure for a drum washing machine series motor. Background technique [0002] Series motors are the most widely used power devices in modern household drum washing machines. Under the pressure of competition, motor manufacturers use various channels to reduce costs. Among them, reducing the cost of raw materials is the most direct and common way to reduce costs. [0003] Because the drum washing machine series motor has stricter noise requirements than other similar series motors, and has higher requirements for the installation accuracy of the brushes and the strength of the end cover, the design of the end cover is generally reinforced with multiple ribs. Only the die-casting process can be used. It is easy to realize, so the most common end cover of this type of motor on the market is still a die-cast aluminum end cover. In order...

AI Technical Summary

Problems solved by technology

[0003] Because the drum washing machine series motor has stricter noise requirements than other similar series motors, and has higher requirements for the installation accuracy of the brushes and the strength of the end cover, the design of the end cover is generally reinforced with multiple ribs. Only the die-casting process can be used. It is easy to realize, so the most common end cover of this type of motor on the market is still a die-cast aluminum end cover. In order to reduce the cost of raw materials, most companies use thinner aluminum end When the wall thickness is high, limited by the strength of the end cover and the die-casting process, the cost of raw materials for the end cover is limited

Some companies use BMC material casting to replace the aluminum end cover structure. For example, South Korea’s C&M company uses this method. The defect of BMC casting material is that it is fragile and cannot be reused. It can only be used under the environment, and BMC scraps have caused irreversible pollution to the environment, so in many developed countries, BMC casting manufacturing is strictly prohibited

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