Isolating element for a toroidal core inductor, and toroidal core inductor

Patent metadata

Field	Value
Publication number	US-10276299-B2
Application number	US-201715477533-A
Country	US
Kind code	B2
Filing date	Apr 3, 2017
Priority date	Apr 13, 2016
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

The invention relates to an isolating element for a toroidal core inductor, comprising a first isolating web part and a second isolating web part, which isolating web parts are provided with latching apparatuses which match one another and in each case with at least one retaining projection, wherein the retaining projections, in the mounted state of the isolating element, rest on a respective top side of the toroidal core inductor, and wherein, in the mounted state of the isolating element, the two isolating web parts extend at least in sections into a passage opening in the toroidal core inductor.

First claim

The invention claimed is:

1. An isolating element for a toroidal core inductor, comprising
a first isolating web part; and
a second isolating web part,
wherein the first and second isolating web parts are provided with latching apparatuses which match one another and each of the first and second isolating web parts having at least one retaining projection,
wherein the retaining projections, in the mounted state of the isolating element, rest on a respective top side of the toroidal core inductor,
wherein, in the mounted state of the isolating element, the first and second isolating web parts extend, at least in part, into a passage opening in the toroidal core inductor,
wherein the latching apparatuses can be latched into one another by mean of a relative movement of the two isolating web parts, and
wherein the relative movement takes place parallel to a centre axis and/or about a centre axis of the passage opening in the toroidal core inductor.

2. The isolating element according to claim 1 , wherein the first isolating web part has a length which corresponds at least to the length of the passage opening in the toroidal core inductor, and in that the first isolating web part has an isolating wall section without apertures, which isolating wall section, in the mounted state, is arranged within the passage opening in the toroidal core inductor.

3. The isolating element according to claim 1 , wherein the first isolating web part has a receiving channel for receiving the second isolating web part.

4. The isolating element according to claim 3 , wherein a latching apparatus of the first isolating web part is arranged within the receiving channel.

5. The isolating element according to claim 3 , wherein the receiving channel extends over the entire length of the first isolating web part.

6. The isolating element according to claim 5 , wherein the receiving channel has a rectangular cross section.

7. The isolating element according to claim 1 , wherein the first isolating web part and/or the second isolating web part have/has a main body which is in the form of a straight strip, wherein the two free end regions of the strip each form a retaining projection, wherein the retaining projections, in the mounted state of the isolating element, rest on a top side of the toroidal core inductor.

8. The isolating element according to claim 1 , wherein the second isolating web part has main body and at least one latching arm which extends starting from the main body, wherein the at least one latching arm is provided with the latching apparatus.

9. The isolating element according to claim 8 , wherein two latching arms are provided, the said latching arms forming a U-shaped arrangement and each being provided with a latching projection and/or a latching recess.

10. The isolating element according to claim 1 , wherein the first isolating web part and/or the second isolating web part are of slightly elastically deformable design at least in the region of the respective retaining projections, and therefore the respective retaining projections, in the mounted state of the isolating element, rest on the respective top side of the toroidal core inductor with a prestressing force.

11. The isolating element to claim 1 , wherein the latching apparatuses are formed on the first isolating web part and on the second isolating web part such that the latching apparatuses, in the latched-in state, cannot be disconnected from one another without being destroyed.

12. A toroidal core inductor comprising an isolating element according to claim 1 , wherein a toroidal core of the toroidal core inductor has a central passage opening, and wherein the isolating element is inserted into the passage opening between different windings on the toroidal core.

13. The toroidal core inductor according to claim 12 , wherein the isolating element has retaining projections which rest on the top sides of the toroidal core.

14. An isolating element for a toroidal core inductor, comprising
a first isolating web part; and
a second isolating web part,
wherein the first and second isolating web parts are provided with latching apparatuses which match one another and each of the first and second isolating web parts having at least one retaining projection,
wherein the retaining projections, in the mounted state of the isolating element, rest on a respective top side of the toroidal core inductor,
wherein, in the mounted state of the isolating element, the first and second isolating web parts extend, at least in part, into a passage opening in the toroidal core inductor,
wherein the first isolating web part has a receiving channel for receiving the second isolating web part, and
wherein a latching apparatus of the first isolating web part is arranged within the receiving channel.

15. The isolating element according to claim 14 , wherein the first isolating web part has a length which corresponds at least to the length of the passage opening in the toroidal core inductor, and in that the first isolating web part has an isolating wall section without apertures, which isolating wall section, in the mounted state, is arranged within the passage opening in the toroidal core inductor.

16. The isolating element according to claim 14 , wherein the first isolating web part and/or the second isolating web part are of slightly elastically deformable design at least in the region of the respective retaining projections, and therefore the respective retaining projections, in the mounted state of the isolating element, rest on the respective top side of the toroidal core inductor with a prestressing force.

17. The isolating element to claim 14 , wherein the latching apparatuses are formed on the first isolating web part and on the second isolating web part such that the latching apparatuses, in the latched-in state, cannot be disconnected from one another without being destroyed.

18. An isolating element for a toroidal core inductor, comprising
a first isolating web part; and
a second isolating web part,
wherein the first and second isolating web parts are provided with latching apparatuses which match one another and each of the first and second isolating web parts having at least one retaining projection,
wherein the retaining projections, in the mounted state of the isolating element, rest on a respective top side of the toroidal core inductor,
wherein, in the mounted state of the isolating element, the first and second isolating web parts extend, at least in part, into a passage opening in the toroidal core inductor,
wherein the second isolating web part has a main body and at least one latching arm which extends starting from the main body, wherein the at least one latching arm is provided with the latching apparatus, and
wherein two latching arms are provided, the said latching arms forming a U-shaped arrangement and each being provided with a latching projection and/or a latching recess.

19. The isolating element according to claim 18 , wherein the first isolating web part has a length which corresponds at least to the length of the passage opening in the toroidal core inductor, and in that the first isolating web part has an isolating wall section without apertures, which isolating wall section, in the mounted state, is arranged within the passage opening in the toroidal core inductor.

20. The isolating element according to claim 18 , wherein the first isolating web part and/or the second isolating web part have/has a main body which is in the form of a straight strip,

Assignees

• Wuerth Elektronik Eisos Gmbh & Co Kg

Inventors

• Aarab Hassan

Classifications

• H01F17/06

  with core substantially closed in itself, e.g. toroid · CPC title

• H01F27/324 Primary

  Insulation between coil and core, between different winding sections, around the coil; Other insulation structures · CPC title

• H01F17/062

  Toroidal core with turns of coil around it · CPC title

• H01F41/125

  Other insulating structures; Insulating between coil and core, between different winding sections, around the coil · CPC title

• H01F30/16

  Toroidal transformers · CPC title