a linear motor

Abstract

The invention discloses a linear motor. The motor includes an iron core, a coil, a first magnetic conducting plate and a first permanent magnet; the iron core includes an iron core body and a core tooth arranged on at least one outer side of the iron core body and protruding from the iron core body; At least one of the outer sides of the iron core with the core teeth is provided with a first magnetic conductive plate, and a first permanent magnet is provided on the side of the first magnetic conductive plate facing the core teeth, and one of the first permanent magnets is provided with a first permanent magnet. One magnetic pole is adjacent to the core tooth, and the magnetic poles of the first permanent magnet adjacent to the core tooth are alternately arranged with N pole and S pole or S pole and N pole; The protruding directions of the teeth are parallel; the magnetic poles of the magnetic field generated by the energization in the coil interact with the magnetic poles of the corresponding first permanent magnets adjacent to the core teeth to generate thrust in the length direction of the iron core body to push the iron core or the first magnetic conducting plate to move. The winding process of the coil in this embodiment is very simple, and the utilization rate of the coil can be improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a linear motor. Background technique [0002] Linear motors have been widely used in linear motor subways, maglev trains, linear motor machining centers, automated assembly lines, direct-drive elevators and many other application fields and occasions. [0003] see figure 1 , figure 1 It is a schematic diagram of the structure of a traditional linear motor. The traditional linear motor is to wind the enameled wire into a coil 2 and then cover it on the core teeth 12 on the iron core 1. The process of assembling the coil 2 and the iron core 1 is relatively complicated, especially in order to provide When the high-thrust linear motor is used, core teeth 12 are set on three sides of the iron core 1, and then each core tooth 12 is covered with a coil 2; [0004] When the core teeth 12 are provided on several sides of the iron core 1, for example figure 1 Core teeth 12 are provided ...

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Problems solved by technology

[0003] refer to figure 1 , figure 1 It is a structural schematic diagram of a traditional linear motor. In a traditional linear motor, the enameled wire is wound into a coil 2 and then put on the core teeth 12 on the iron core 1. The process of assembling the coil 2 and the iron core 1 is relatively complicated, especially to provide For a high-thrust linear motor, set core teeth 12 on three sides of the iron core 1, and then put a coil 2 on each core tooth 12;

[0004] When several sides of the iron core 1 are provided with core teeth 12, for example figure 1 Core teeth 12 are provided on both sides of the middle, and coils 2 are sleeved on each core tooth 12 of the two sides. It can be seen that the number of coils 2 required is much larger than that of one side, so the processing The process is more cumbersome and time-consuming, the processing efficiency is low, and because only one side of a coil is used to generate thrust in this coil setting method, the utilization rate of the coil is very low

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