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Method for manufacturing multi-layer magnetic core

A technology of magnetic core and core layer, applied in the direction of magnetic core manufacturing, magnetic core/yoke, inductor/transformer/magnet manufacturing, etc., can solve the problems of small size, difficult operation, and the film does not have high mechanical rigidity, so as to achieve flexibility. effect of length

Active Publication Date: 2016-02-10
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to their small size, these films do not possess high mechanical rigidity, making them difficult to manipulate in large-scale industrial production processes

Method used

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  • Method for manufacturing multi-layer magnetic core
  • Method for manufacturing multi-layer magnetic core
  • Method for manufacturing multi-layer magnetic core

Examples

Experimental program
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Embodiment Construction

[0048] Figure 1a and 1b A multilayer magnetic core 1 according to the first embodiment is shown. The core can be used in inductive sensors, in particular in the linear position sensors produced by the applicant.

[0049] The core 1 has an outer layer 10 on which a plurality of core layers 20 , 21 , 22 are placed, wherein the outer layer 10 is designed to support and protect the core layers. The core layer 22 is fastened to the outer layer 10 by means of a connecting medium 32 . The other core layers 20 , 21 are connected to adjacent core layers 20 , 21 , 22 by means of connecting media 31 , 32 . An electrically conductive layer 40 is placed on the core layer 20, but this layer is not required. Furthermore, the core 1 has a separation layer 50 as a secondary outer layer.

[0050]The core layers 20, 21, 22 are made of materials with soft magnetic properties. In particular, the material of the core layers 20 , 21 , 22 is chosen such that the core layers do not have magnetos...

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Abstract

The invention relates to a method for manufacturing a multi-layer magnetic core (1, 100) used for an inductive sensor. The multi-layer magnetic core includes multiple magnetic core layers (20, 21, 22), which are connected to layers of connection mediums (30, 31, 32). The multi-layer magnetic core is characterized in that the core layers (20, 21, 22) are arranged on a first external layer (10), which is such designed to support and protect the core layers (20, 21, 22).

Description

technical field [0001] The invention relates to a method for producing a multilayer magnetic core for an inductive sensor according to the preamble of claim 1 and to a multilayer magnetic core which can be produced by the method according to the invention. Background technique [0002] The prior art discloses an inductive stroke sensor that obtains the stroke of a measurement object through the change of the magnetic flux density of a soft magnetic core. The motion of the measured object is acquired using a target, usually a permanent magnet. The target locally influences the flux density of the core, resulting in a change in the voltage of the coils located in the vicinity of the core, from which the position of the measurement object or target can be deduced. [0003] The core is typically constructed using a unitary soft magnetic material. But the disadvantage is that mechanical stresses are generated inside the core during the manufacturing process. Especially in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F3/00G01D5/12
CPCH01F3/04G01R15/183H01F41/0213
Inventor J·席林格D·胡贝尔F·格伦瓦尔德
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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