Method for producing a system for inductively transmitting energy to a mobile part, and device for carrying out the method

Patent metadata

Field	Value
Publication number	US-11101692-B2
Application number	US-201816603505-A
Country	US
Kind code	B2
Filing date	Mar 20, 2018
Priority date	Apr 7, 2017
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

In a method for producing a system for inductively transmitting energy to a mobile part: a stepped bore is introduced into a floor; a sealing element is introduced into the stepped bore; a ring frame is held in place in the stepped bore with the aid of an alignment unit supported on the surface of the floor, the upper edge of the ring frame being aligned with the height of the floor or with the surface of a floor covering applied to the floor; the ring frame is set apart from the floor so that a gap region exists between the ring frame and the floor; casting compound is filled into the gap region; the alignment unit is removed; and a primary part is accommodated in the ring frame.

First claim

The invention claimed is:

1. A method for producing a system for inductively transmitting energy to a mobile part, comprising: introducing a stepped bore into a floor; introducing a sealing element into the stepped bore; holding a ring frame in place in the stepped bore with the aid of an alignment unit that is supported on a surface of the floor, an upper edge of the ring frame being aligned with a height of the floor or a surface of a floor covering attached to the floor, the ring frame being set apart from the floor so that a gap region is present between the ring frame and the floor; filling a casting compound into the gap region; removing the alignment unit after the filling; and accommodating a primary part in the ring frame after the removing.

2. The method according to claim 1 , wherein the upper edge is aligned to a same height position as the surface of the floor or the floor covering.

3. The method according to claim 1 , wherein the primary part is accommodated in the ring frame by screws.

4. The method according to claim 1 , wherein the sealing element rests against the stepped bore, rests against an area of the stepped bore that is situated below a step of the stepped bore, is pressed against the stepped bore, rests against the ring frame, and/or rests against an inner wall of the ring frame.

5. The method according to claim 1 , wherein the primary part includes a winding and/or an electrical feed line for a winding is arranged in a corrugated tube that terminates in a region arranged below a step of the stepped bore; and/or
wherein the alignment unit is aligned with the surface of the floor covering of the floor; and/or
wherein the ring frame is arranged above the step of the stepped bore.

6. A system and/or device for performing the method according to claim 1 , comprising:
a primary part situated in a stepped bore introduced into a floor; and
an alignment unit having a disk on which radially extending arms are situated, each arm including an adjustment screw and/or a ring frame held in place in the stepped bore introduced into the floor with the aid of a casting compound, in an integral and/or a positively engaged manner;
wherein the primary part is connected and/or screw-connected to the ring frame.

7. The system and/or device according to claim 6 , wherein the primary part includes a receiving part having upper side covered by a cover part provided with a spiral-shaped groove on a side facing the receiving part, in which a winding and/or a flat winding is accommodated, a ferrite layer is situated on a side of the winding facing the receiving part, the ferrite layer including cuboidal ferrite parts, the cover part being made of plastic and/or plastic that is transparent to light.

8. The system and/or device according to claim 7 , wherein a lower part is connected to the receiving part on a side of the receiving part facing away from the cover part, and a space region and/or an annular space region circumferential in a circumferential direction is arranged between the receiving part and the lower part, a circuit board fitted with at least one capacitor system being arranged in the space region and/or the annular space region.

9. The system and/or device according to claim 8 , wherein the lower part is connected to the receiving part by screws, and the cover part is connected to the ring frame by screws that penetrate the receiving part.

10. The system and/or device according to claim 7 , wherein a further space region, which is set apart from the annular space region in the circumferential direction, and which is arranged at a smaller radial distance from a center axis of the stepped bore, is arranged between the receiving part and the lower part.

11. The system and/or device according to claim 10 , wherein a controllable illumination device and/or a controllable LED is arranged in the further space region, the receiving part having an uninterrupted bore, in a direction of the illumination device and/or the LED, which is either kept free or is filled with a transparent material, the cover part being made from a transparent material.

12. The system and/or device according to claim 8 , wherein the capacitor system is connected in series and/or in parallel with the winding and is dimensioned so that a resonant frequency of a resulting oscillating circuit substantially corresponds to a frequency of an alternating current impressed into the oscillating circuit and/or the winding.

13. The system and/or device according to claim 8 , wherein a cable gland is arranged on an underside of the lower part, to which the feed line is routed.

14. The system and/or device according to claim 8 , wherein the receiving part, the cover part, and the lower part have a circular outer edge region and/or have a maximum radial distance that is independent of a circumferential angle.

15. The system and/or device according to claim 7 , wherein the winding has a preferred direction aligned parallel to a driving plane of the mobile part and/or a maximum radial distance of the winding has different values as a function of circumferential angle.

16. The system and/or device according to claim 7 , wherein the winding has no preferred direction aligned parallel to a driving plane of the mobile part and/or a maximum radial distance of the winding has different values as a function of circumferential angle.

17. A system for contactless transmission of energy from a primary part situated on a floor to a mobile part movable on the floor, and for performing the method according to claim 1 , comprising:
a ring frame held in place in a stepped bore introduced into the floor with the aid of the casting compound, in an integral and/or positively engaged manner, wherein the primary part is connected and/or screw-connected to the ring frame.

Assignees

• Sew Eurodrive Gmbh & Co

Inventors

• Soder Johann
• Jahn Nils-Malte

Classifications

• H02J50/10 Primary

  using inductive coupling · CPC title

• H01F38/14

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

• H01F27/02

  Casings · CPC title

• Y02T10/70

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

• B60L53/12

  Inductive energy transfer · CPC title