Stator device for a linear motor and linear transport system

Patent metadata

Field	Value
Publication number	US-10177640-B2
Application number	US-201414497412-A
Country	US
Kind code	B2
Filing date	Sep 26, 2014
Priority date	Mar 27, 2012
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A stator device for a linear motor comprises an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising a stator tooth and a coil wound around the stator tooth and a holding module for holding the magnetic field generator, the holding module having a first and a second holding device, wherein the magnetic field generator is arranged between the two holding devices in that a first end of the stator tooth is fixed to the first holding device and a second end of the stator tooth is fixed to the second holding device.

First claim

The invention claimed is:

1. A stator device for a linear motor, comprising:
an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising a stator tooth and a coil is wound around the stator tooth, and
a holding module for holding the magnetic field generator, the holding module having a first and a second holding device,
wherein the magnetic field generator is arranged between the two holding devices in that a first end of the stator tooth is fixed to the first holding device and a second end of the stator tooth is fixed to the second holding device, wherein the first and the second holding device each is a printed circuit board,
wherein a power electronics is arranged at the first holding device and configured to electrically energize the magnetic field generator, and
wherein a position detection system electronics is arranged at the second holding device and configured to detect the presence of a position detecting element.

2. The stator device as claimed in claim 1 , wherein the first end of the stator tooth is inserted into and fixed in a first cutout of the first holding device and wherein the second end of the stator tooth is inserted into and fixed in a second cutout of the second holding device.

3. The stator device as claimed in claim 1 , further comprising a mounting device which is formed separately from the holding module and which is designed for the fastening of a guide for guiding a vehicle, wherein the holding module is fastened to the mounting device in that the two holding devices are fastened to opposite sides of the mounting device.

4. The stator device as claimed in claim 3 , wherein the mounting device has at least one bore for receiving a fastening means that fastens the guide to the mounting device.

5. The stator device as claimed in claim 3 , wherein the mounting device is in the form of a profile element.

6. The stator device as claimed in claim 3 , wherein the mounting device comprises an encapsulation that at least partially surrounds the magnetic field generator.

7. The stator device as claimed in claim 3 , wherein the guide is arranged above the magnetic field generator and is fastened to the mounting device.

8. A stator device for a linear motor, comprising:
an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising coils,
a holding module for holding the magnetic field generator, the holding module having a printed circuit board electrically contacting the coils of the magnetic field generator,
a support module for supporting the holding module, the support module comprising an installation space, into which the printed circuit board projects, and
an electronic component arranged in the installation space, the electronic component comprising power electronics, the power electronics being arranged at the printed circuit board to electrically energize the magnetic field generator.

9. The stator device as claimed in claim 8 , wherein a rail for a guide of the electronic component is formed in the installation space.

10. The stator device as claimed in claim 8 , wherein the installation space comprises a slot for receiving a displacement means for displacement of the electronic component.

11. The stator device as claimed in claim 8 , wherein the installation space is formed as a tunnel running through the support module.

12. The stator device as claimed in claim 8 , wherein a plug connector for the electronic component is formed in the installation space, which plug connector is electrically connected to the magnetic field generator.

13. The stator device as claimed in claim 8 , wherein a parameter memory is provided for activation parameters of the magnetic field generator.

14. The stator device as claimed in claim 8 , wherein a sensor is provided for measuring an operating parameter of the magnetic field generator.

15. A linear transport system comprising:
a stator device, the stator device having a first and a second electrically energizable magnetic field generator, a holding module for holding the magnetic field generators, and a support module for supporting the holding module, the support module including position detection system electronics; and
a support for a vehicle, wherein the support comprises at least one reaction part which is designed to interact with a magnetic field formed by the magnetic field generators of the stator device, and wherein the support further comprises a position detection element being arranged opposite the position detection system electronics included in the support module of the stator device.

16. The linear transport system as claimed in claim 15 , wherein the reaction part comprises at least one permanent magnet.

17. The linear transport system as claimed in claim 15 , wherein the reaction part comprises a soft magnetic material.

18. The linear transport system as claimed in claim 15 , wherein each magnetic field generator forms a magnetic field and further comprising a stator tooth and a coil wound around the stator tooth, wherein a non-wound stator tooth is arranged between the first and the second magnetic field generator.

19. The stator device as claimed in claim 1 , having a further magnetic field generator, the further magnetic field generator comprising a further stator tooth and a further coil wound around the further stator tooth, wherein a non-wound stator tooth is arranged between the two magnetic field generators.

Assignees

• Beckhoff Automation Gmbh

Inventors

• Achterberg Jan
• Prüssmeier Uwe

Classifications

• H02K41/031 Primary

  of the permanent magnet type · CPC title

• H02K11/30

  Structural association with control circuits or drive circuits · CPC title

• H02K41/02

  Linear motors; Sectional motors · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title

• H02K41/03

  Synchronous motors; Motors moving step by step; Reluctance motors (H02K41/035 takes precedence) · CPC title