Primary iron core structure of linear motor

A primary iron core and linear motor technology, applied in the direction of magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., can solve the problems affecting the performance of the motor, low mechanical strength of single-piece assembled linear motors, and cumulative errors. Achieve the effects of high manufacturing efficiency, easy automatic winding, and high slot fill rate

Pending Publication Date: 2021-07-23
BEIJING JINGDIAO GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The block-type linear motor can realize automatic winding, thereby improving the slot full rate, reducing heat generation, and reducing manufacturing cost and manufacturing cycle at the same time, but the primary iron core has certain dimensional errors after disassembly, and cumulative errors are prone to occur during the assembly process. As a result, the performance of the motor is affected, and the mechanical strength of the single-piece assembled linear motor is low

Method used

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  • Primary iron core structure of linear motor
  • Primary iron core structure of linear motor
  • Primary iron core structure of linear motor

Examples

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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the primary iron core structure of a linear motor of the present invention is composed of primary yoke 1, fixed teeth 2, and nested teeth 3. The fixed teeth 2 and nested teeth 3 are arranged alternately to form the primary teeth of the present invention. The fixed teeth 2 are evenly arranged on the primary yoke 1 and integrated with the primary yoke 1 . The primary yoke 1 is provided with a slot 4 between every two fixed teeth 2 . The root of each nesting tooth 3 is provided with a convex key 5 matched with the slot 4, and the nesting teeth 3 are sequentially connected at the top to form a whole.

[0018] Before installation, the overall structure composed of the fixed teeth 2 and the nested teeth 3 is automatically wound. After the winding is completed, the convex keys 5 of each nested tooth 3 correspond to the slots 4 and are pushed into the slots. 4, the nested teeth 3 are installed on the primary yoke 1 to form a primary iron core structu...

Embodiment 2

[0022] Such as Figure 4 As shown, this embodiment is composed of a primary yoke 1, fixed teeth 2, and nested teeth 3, and the fixed teeth 2 and nested teeth 3 are arranged alternately to form the primary teeth of the present invention. The fixed teeth 2 are evenly arranged on the primary yoke 1 and are integrated with the primary yoke 1 . The primary yoke 1 is provided with a slot 4 between every two fixed teeth 2 . The root of each nested tooth 3 is provided with a protruding key 5 matching with the slot 4 .

[0023] Before installation, the overall structure composed of fixed teeth 2 and each nested tooth 3 are automatically wound. After the winding is completed, each nested tooth 3 is installed on the primary yoke 1 in turn, and an open groove can be formed according to the tooth shape structure. Or the primary iron core structure of the semi-closed slot. In order to facilitate installation and achieve sufficient positioning, the slot 4 is a dovetail slot structure. Afte...

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PUM

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Abstract

The invention belongs to the field of linear motors, and particularly relates to a primary iron core structure of a linear motor, which comprises a primary yoke and primary teeth, wherein the primary teeth are composed of a plurality of fixed teeth and nested teeth, and the fixed teeth are uniformly arranged on the primary yoke and fixedly connected with the primary yoke into a whole; and the nested teeth are respectively arranged between the two fixed teeth and are in nesting fit with the primary yoke through the clamping grooves. During winding, the fixed teeth are separated from the nested teeth, a large tooth groove space can be obtained, winding is not hindered, the groove fullness rate is high, heating is small, automatic winding is easy to achieve, the manufacturing efficiency is high, and the cost is low. In addition, the fixed teeth are of an integrated structure, the nested teeth can also be integrally formed, the mechanical strength is high, accumulated errors do not exist during combination, and the precision is easy to guarantee.

Description

technical field [0001] The invention belongs to the field of linear motors, in particular to a primary iron core structure of a linear motor. Background technique [0002] Linear motors can directly convert electrical energy into linear motion mechanical energy without an intermediate transmission mechanism, and have the advantages of high positioning accuracy, good dynamic performance, fast speed response, and high transmission efficiency. Existing linear motors can be divided into one-piece linear motors and block-type linear motors according to the structure of the primary iron core. The integrated linear motor means that the primary iron core is a complete whole, and the winding is put into the iron core by using embedded wire technology. The strength of the iron core is good, but the slot fullness rate is low, the heat generation is high, and it is difficult to realize automatic mechanical winding, the manufacturing cost is high, and the manufacturing efficiency is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/06H02K41/02
CPCH02K1/06H02K41/02
Inventor 牛凯付江寒孟庆彤郝凌霄
Owner BEIJING JINGDIAO GRP CO LTD
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