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Basic part of linear motor and manufacturing method thereof

A basic component, linear motor technology, used in the manufacture of motor generators, electrical components, electric components, etc., can solve the problems of small flexibility, increased space requirements, limited availability, etc., to achieve the effect of large flexibility and low cost

Active Publication Date: 2015-09-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this embodiment the sensor device is integrated into the motor in an early production step, which limits the later usability and leads to little flexibility in production
As a further alternative, it is known to fasten the sensor device axially in front of or behind the base part after production, for example in the coil winding, but this leads to an increased space requirement and, for example, in the axial direction The possible strokes of the linear motors are limited by the front or rear fixing of the base part

Method used

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  • Basic part of linear motor and manufacturing method thereof
  • Basic part of linear motor and manufacturing method thereof
  • Basic part of linear motor and manufacturing method thereof

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Embodiment Construction

[0026] The following are related and cross-referenced Figure 1 to Figure 4 , where the same elements are given the same reference numerals. figure 1 is along figure 2 A cross-sectional view of the cutting line A-A. figure 2 is along image 3 Cross-sectional view of cutting line B-B.

[0027] figure 1 A first preferred embodiment of the base part according to the invention is schematically shown in a sectional view and is generally designated 100 . The base component 100 has a coil body 110 in which a coil for generating a basic magnetic field is embedded. The coil body 110 is provided with a recess 111 for accommodating the sensor device 120 . In the figure shown, sensor device 120 has three Hall sensor elements 121 mounted on a printed circuit board 122 and serves to provide commutation signals.

[0028] Recess 111 is arranged on coil body 110 in such a way that sensor device 120 installed after the final position detects the stray magnetic field of the magnet of th...

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Abstract

The method involves providing a coil body (110) that supports coil windings for generating magnetic flux, and providing a support housing (130). Recesses (111, 131) are formed for receiving sensor devices (120) in the coil body and the support housing. The sensor devices are partially or completely arranged within the recesses, where the sensor devices are formed as position sensor devices or communication sensor devices. Stray field of a secondary part standing in interaction with a primary part (100) is detected by the sensor devices. An independent claim is also included for a primary part including coil windings.

Description

technical field [0001] The invention relates to a method of manufacturing a base part of a linear motor and a base part of a linear motor. Background technique [0002] Linear motors are used for various drive tasks. It is particularly suitable for positioning small and moderately moving substances with high precision because it is essentially a backlash-free direct drive. [0003] In addition to conventional linear motors with an iron core (iron core), the use of iron-less linear motors is also increasing. It is particularly advantageous in terms of high positioning accuracy, high dynamics and high maximum speed, but is limited in terms of force density. A typical embodiment of an ironless linear motor has a base part which is designed with two or three coil windings for generating the magnetic flux. The associated secondary part is formed on both sides and comprises an angled U-profile, on each inner side of which a row of magnets of alternating polarity is arranged. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/08H02K3/04H02K1/06H02K3/28
CPCH02K41/03H02K29/08
Inventor I·格罗宁H·孔克尔
Owner ROBERT BOSCH GMBH
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