Coil arrangement and device for the wireless electromagnetic transmission of energy

Patent metadata

Field	Value
Publication number	US-11715978-B2
Application number	US-202016941161-A
Country	US
Kind code	B2
Filing date	Jul 28, 2020
Priority date	Jul 31, 2019
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A coil arrangement for the wireless electromagnetic transmission of energy includes a carrier which forms a main direction of extent. On the carrier element, are attached in succession in the main direction of extent and connected to one another. The carrier element comprises a ferrite material and at least one desired parting location which is designed as a perforation and/or notch arrangement. The coil arrangement can be easily adapted in a flexible way to a rotatable component and attached thereto. This makes easy wireless electromagnetic transmission of energy possible.

First claim

What is claimed is:

1. A coil arrangement for the wireless electromagnetic transmission of energy, having
a carrier element which is embodied in the form of a deformable ribbon and is mountable to a curved surface of a rotatable component and forms a main direction of extent, the carrier element defining a plurality of parting locations; and
a plurality of coils, wherein at least some of the plurality of coils are attached to the carrier element in the main direction of extent and connected to one another,
wherein the carrier element comprises a ferrite material, and wherein the plurality of parting locations are designed as at least one of a perforation and a notch arrangement, one of the plurality of parting locations being arranged between each of the plurality of coils; and wherein: at least one contact element for forming contact with coils is arranged on the carrier element, wherein the at least one contact element is embodied in an H-shape and has a first contact region and a second contact region which are connected to one another by a connecting region, wherein one of the plurality of parting locations runs in the connecting region.

2. The coil arrangement according to claim 1 , wherein
the carrier element has a thickness D, wherein the following applies: 0.1 mm≤D≤2.5 mm.

3. The coil arrangement according to claim 1 , wherein
the carrier element has a thickness D, wherein the following applies: 0.5 mm≤D≤2 mm.

4. The coil arrangement according to claim 1 , wherein
the carrier element has a thickness D, wherein the following applies: 1 mm≤D≤1.5 mm.

5. The coil arrangement according to claim 1 , wherein
the carrier element is of deformable design for arrangement on the curved surface of the component.

6. The coil arrangement according to claim 1 , wherein
an attachment means for attaching to the component is arranged on a side of the carrier element facing away from the plurality of coils.

7. The coil arrangement according to claim 6 , wherein the attachment means is at least one of an adhesive layer, a double-sided adhesive tape, an adhesive film and touch and close fasteners.

8. The coil arrangement according to claim 1 , wherein
the coils are connected in series.

9. The coil arrangement according to claim 1 , wherein
the plurality of parting locations are spaced apart in the main direction of extent.

10. The coil arrangement according to claim 1 , wherein
the plurality of coils are wound in a spiral shape.

11. The coil arrangement according to claim 1 , wherein
the plurality of coils each comprise two connecting contacts which are arranged offset with respect to one another by an angle α, wherein the following applies: 60°≤α≤300°.

12. The coil arrangement according to claim 1 , wherein
the plurality of coils each comprise two connecting contacts which are arranged offset with respect to one another by an angle α, wherein the following applies: 90°≤α≤270°.

13. The coil arrangement according to claim 1 , wherein
the plurality of coils each comprise two connecting contacts which are arranged offset with respect to one another by an angle α, wherein the following applies: 120°≤α≤240°.

14. The coil arrangement according to claim 1 , wherein
at least one contact element for forming contact with one of the plurality of coils is arranged on the carrier element.

15. The coil arrangement according to claim 14 , wherein
the carrier element comprises at least one parting location which runs in the region of the at least one contact element.

16. The coil arrangement according to claim 14 , wherein
the at least one contact element comprises a first contact region and a second contact region which are spaced apart from one another in the main direction of extent and are connected to one another by a connecting region.

17. The coil arrangement according to claim 1 , wherein the carrier element has a thickness D, wherein the following applies: 0.1 mm≤D≤1.5 mm.

18. The coil arrangement according to claim 1 , wherein the at least one desired parting location runs transversely with respect to the main direction of extent.

19. The coil arrangement according to claim 1 , wherein:
at least one contact element for forming contact with coils is arranged on the carrier element, wherein the at least one contact element comprises a first contact region and a second contact region which are spaced apart from one another in the main direction of extent and are connected to one another by a connecting region, wherein the first contact region and the second contact region have a greater width perpendicularly with respect to the main direction of extent than the connecting region and one of the plurality of parting locations runs in the connecting region.

20. A device for the wireless electromagnetic transmission of energy, having
a transmitter unit for transmitting energy which is transmittable in a wireless fashion, and
a receiver unit for receiving energy which is transmitted in a wireless fashion, wherein at least one of the transmitter unit and the receiver unit comprises a coil arrangement for the wireless electromagnetic transmission of energy, having
a carrier element which is embodied in the form of a deformable ribbon and is mountable to a curved surface of a rotatable component and forms a main direction of extent, the carrier element defining a plurality of parting locations; and
a plurality of coils, wherein at least some of the plurality of coils are attached to the carrier element in the main direction of extent and connected to one another, wherein the carrier element comprises a ferrite material, and wherein the plurality of parting locations are designed as at least one of a perforation and notch arrangement, one of the plurality of parting locations being arranged between each of the plurality of coils; and wherein: at least one contact element for forming contact with coils is arranged on the carrier element, wherein the at least one contact element is embodied in an H-shape and has a first contact region and a second contact region which are connected to one another by a connecting region, wherein one of the plurality of parting locations runs in the connecting region.

21. The device according to claim 20 , wherein:
at least one contact element for forming contact with coils is arranged on the carrier element, wherein the at least one contact element comprises a first contact region and a second contact region which are spaced apart from one another in the main direction of extent and are connected to one another by a connecting region, wherein the first contact region and the second contact region have a greater width perpendicularly with respect to the main direction of extent than the connecting region and one of the plurality of parting locations runs in the connecting region.

22. A component coil arrangement for the wireless electromagnetic transmission of energy, having
a component which is mounted so as to be rotatable about a rotational axis, and
a coil arrangement for the wireless electromagnetic transmission of energy, having
a carrier element which is embodied in the form of a deformable ribbon and is mountable to a curved surface of the rotatable component and forms a main direction of extent, the carrier element defining a plurality of parting locations; and
a plurality of coils, wherein at least some of the plurality of coils are attached to the carrier element in the main direction of extent and connected to one another, w

Assignees

• Wuerth Elektronik Eisos Gmbh & Co Kg

Inventors

• Som Cem
• Schaffelhofer Christopher

Classifications

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• H02J50/12 Primary

  of the resonant type · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F38/14 Primary

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H02J50/40

  using two or more transmitting or receiving devices (H02J50/50 takes precedence) · CPC title