Receiving device and a method of manufacturing a receiving device

Patent metadata

Field	Value
Publication number	US-11584239-B2
Application number	US-201816471234-A
Country	US
Kind code	B2
Filing date	Jan 24, 2018
Priority date	Jan 26, 2017
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A receiving device of a system for inductive power transfer includes a housing, which includes a cover element and a base element, at least one reception area for a circuit board, at least one magnetic shielding element, wherein the at least one magnetic shielding element covers the at least one reception area of the cover element at least partially, and a winding structure, the magnetic shielding element is arranged below the winding structure with respect to a vertical axis of the receiving device and the vertical axis of the receiving device is oriented orthogonal to an upper surface of the cover element and a bottom surface of the base element.

First claim

The invention claimed is:

1. A receiving device of a system for inductive power transfer, wherein the receiving device comprises:
a housing, wherein the housing comprises:
a cover element, and
a base element;

at least one reception area on the cover element for receiving a circuit board;
at least one magnetic shielding element, wherein the at least one magnetic shielding element covers the at least one reception area at least partially; and
a winding structure;
wherein, in a mounted state in which the receiving device is mounted on a vehicle, the cover element is arranged above the base element,
wherein the magnetic shielding element is arranged below the at least one reception area and the winding structure with respect to a vertical axis of the receiving device, and
wherein the vertical axis of the receiving device is oriented orthogonal to an upper surface of the cover element and a bottom surface of the base element.

2. The receiving device according to claim 1 , wherein a circuit board is arranged in the reception area, wherein the magnetic shielding element fully covers the circuit board from below.

3. The receiving device according to claim 1 , wherein the magnetic shielding element has or provides at least one strap, wherein the at least one strap contacts the cover element.

4. The receiving device according to claim 3 , wherein the at least one strap extends into or through a sidewall of the housing.

5. The receiving device according to claim 1 , wherein a contour of the magnetic shielding element fully encloses a contour of the circuit board or encloses the contour of the circuit board by more than a predetermined non-zero percentage but not fully in a common plane of projection.

6. The receiving device according to claim 1 , wherein the magnetic shielding element has at least one recess, wherein the at least one recess is provided by a concave section of a contour of the magnetic shielding element.

7. The receiving device according to claim 1 , wherein the cover element comprises a first reception area and at least one further reception area, wherein a first circuit board is arranged in the first reception area and a further circuit board is arranged in the further reception area, wherein the receiving device comprises at least one connecting means for providing a signal connection between the first and the further circuit board, wherein at least one section of the signal connecting means is arranged in a guiding channel of the cover element.

8. The receiving device according to claim 1 , wherein the magnetic shielding element is oriented orthogonal to a main direction of the field lines of the electromagnetic field receivable by the winding structure.

9. The receiving device according to claim 1 , wherein the magnetic shielding element is made of aluminium.

10. The receiving device according to claim 1 , wherein a thickness of the magnetic shielding element depends on a frequency of the electromagnetic field receivable by the winding structure.

11. The receiving device according to claim 1 , wherein the magnetic shielding element is attached to the bottom element.

12. The receiving device according to claim 1 , wherein the cover element has at least one alignment projection for aligning the circuit board.

13. The receiving device according to claim 12 , wherein the alignment projection has a thread.

14. A method of manufacturing a receiving device of a system for inductive power transfer, wherein a cover element and a base element of a housing of the receiving device are provided, wherein the cover element has at least one reception area, wherein at least one magnetic shielding element is provided, wherein the at least one magnetic shielding element is arranged in the housing such that it covers the at least one reception area of the cover element at least partially, wherein the receiving device comprises a winding structure,
wherein, in a mounted state in which the receiving device is mounted on a vehicle, the cover element is arranged above the base element,
wherein the magnetic shielding element is arranged below the reception area and the winding structure with respect to a vertical axis of the receiving device, and
wherein the vertical axis of the receiving device is oriented orthogonal to an upper surface of the cover element and a bottom surface of the base element.

Assignees

• Bombardier Primove Gmbh

Inventors

• Wechsler Simon
• Gunt Roman

Classifications

• H02J7/70

  characterised by the mechanical construction · CPC title

• B60Y2200/30

  Railway vehicles · CPC title

• H01F27/36

  Electric or magnetic shields or screens (movable for varying inductance H01F21/10) · CPC title

• B60Y2200/11

  Passenger cars; Automobiles · CPC title

• H02J50/70

  involving the reduction of electric, magnetic or electromagnetic leakage fields · CPC title