Low-cost magnetic collection miniaturized motor

Abstract

The invention discloses a low-cost magnetic collection miniaturized motor. The low-cost magnetic collection miniaturized motor comprises a magnetic trap, a coil and a support. The magnetic trap is composed of two parts of permanent magnet blocks, the N poles of a part of the permanent magnet blocks are all oriented towards the inside of the magnetic trap, and the S poles of the other part of the permanent magnet blocks are all oriented towards the inside the magnetic trap so that a radial magnetic field is formed in the magnetic trap; and the coil is a coreless coil and is arranged in the magnetic trap through a rotating shaft, and the rotating shaft is disposed at the interval of the two parts of the permanent magnet blocks. The low-cost magnetic collection miniaturized motor is technically characterized in that the permanent magnet blocks are ultrathin neodymium iron boron sheets. The low-cost magnetic collection miniaturized motor provided by the invention can further reduce the production cost of the miniaturized motor and the weight of the motor.

Description

technical field [0001] The invention relates to a micro motor, in particular to a low-cost magnetic collecting micro motor. Background technique [0002] The global micro-motor market is mainly distributed in the fields of audio-visual, office automation, electric vehicles (including automobiles), home appliances, and air conditioners. With the improvement of people's living standards, the micro motor market is developing rapidly. Usually, the number of micro motors owned by each family can measure the degree of a country’s modernization level. From Table 2, we can know the historical situation and future growth trend of the number of micro motors owned by each family in Japan in developed countries. The market demand is developing rapidly. There is a huge market. [0003] my country's micro-motor industry was established in the late 1950s. It has experienced the stages of imitation, self-design and research and development since it met the needs of national defense weapon...

AI Technical Summary

Problems solved by technology

Disadvantages of ironless motor: 1. Since the motor has no iron core, the reluctance of the magnetic circuit increases. To generate a magnetic field of the same strength, a stronger magnet is required, resulting in an increase in cost; 2. The high speed of the ironless motor has Advantages The loss of the motor includes two parts: electromagnetic loss and mechanical loss, and electromagnetic loss includes copper loss and iron loss

[0008] However, although the rare earth permanent magnet ironless micro-motor is a brand new product, the market is still being cultivated, and there are still many difficulties in its promotion and application.

First, low social awareness

Most users do not understand the technology, and are still skeptical about the working principle, application effect and reliability of the product

Second, the standard specification lags behind

[0009] my country's standards for permanent magnet motors are very scarce, and rare earth permanent magnet ironless motors are even more blank, which seriously affects the product selection, performance evaluation, and quality inspection of this type of motor, restricting the promotion and application of products

Third, the degree of industrialization needs to be improved

Fourth, lack of policy incentives

High-efficiency and energy-saving motors have market obstacles such as high initial cost and information asymmetry, and the state needs to introduce relevant incentive policies to leverage the market and cultivate the industry

[0010] To sum up, high cost restricts the market occupation of rare earth permanent magnet ironless micro motors