Rotating electric machine
US-2021384787-A1 · Dec 9, 2021 · US
Coil device with predetermined gap arrangement
US11508518B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11508518-B2 |
| Application number | US-202016794454-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2020 |
| Priority date | Feb 19, 2020 |
| Publication date | Nov 22, 2022 |
| Grant date | Nov 22, 2022 |
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- Title
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Abstract
Official abstract text for this publication.
A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.
First claim
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What is claimed is: 1. A coil device comprising: a core; and a plurality of coils arranged in the core, wherein a distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other, the core includes an outer leg part formed between the coils next to each other and an inner leg part formed in at least one of the coils, the first gap is formed at the outer leg part, the second gap is formed at the inner leg part, the core includes a first core and a second core, the first core has at least one outer leg part and a plurality of inner leg parts, the second core has at least one outer leg part and a plurality of inner leg parts, the first gap is formed between the outer leg part of the first core and the outer leg part of the second core, and the second gap is formed between at least one of the inner leg parts of the first core and at least one of the inner leg parts of the second core. 2. The coil device according to claim 1 , wherein mountable parts connectable to an external circuit are formed on both ends of at least one of the coils. 3. The coil device according to claim 2 , wherein the mountable parts are partly exposed from a lateral surface of the core in its width direction. 4. The coil device according to claim 1 , wherein the core includes a top board covering tops of the plurality of coils. 5. The coil device according to claim 1 , wherein a width of at least one of the coils is larger than a length of at least one of the coils perpendicular to its height direction. 6. A coil device comprising: a core; and a plurality of coils arranged in the core, wherein a distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other, the first gap extends in a direction connecting the coils next to each other, the second gap extends in a direction connecting portions of an inner circumferential surface of at least one of the coils, the core includes an outer leg part formed between the coils next to each other and an inner leg part formed in at least one of the coils, the first gap is formed at the outer leg part, the second gap is formed at the inner leg part, the core includes a first core and a second core, the first core has at least one outer leg part and a plurality of inner leg parts, the second core has at least one outer leg part and a plurality of inner leg parts, the first gap is formed between the outer leg part of the first core and the outer leg part of the second core, and the second gap is formed between at least one of the inner leg parts of the first core and at least one of the inner leg parts of the second core. 7. The coil device according to claim 6 , wherein mountable parts connectable to an external circuit are formed on both ends of at least one of the coils. 8. The coil device according to claim 7 , wherein the mountable parts are partly exposed from a lateral surface of the core in its width direction. 9. The coil device according to claim 6 , wherein the core includes a top board covering tops of the plurality of coils. 10. The coil device according to claim 6 , wherein a width of at least one of the coils is larger than a length of at least one of the coils perpendicular to its height direction. 11. A coil device comprising: a core; and a plurality of coils arranged in the core, wherein a distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other, mountable parts connectable to an external circuit are formed on both ends of at least one of the coils, the core includes an outer leg part formed between the coils next to each other and an inner leg part formed in at least one of the coils, the core includes a first core and a second core, the first core has at least one outer leg part and a plurality of inner leg parts, the second core has at least one outer leg part and a plurality of inner leg parts, the first gap is formed between the outer leg part of the first core and the outer leg part of the second core, and the second gap is formed between at least one of the inner leg parts of the first core and at least one of the inner leg parts of the second core. 12. The coil device according to claim 11 , wherein the mountable parts are partly exposed from a lateral surface of the core in its width direction. 13. The coil device according to claim 11 , wherein the mountable parts are not exposed from a lateral surface of the core in its width direction. 14. The coil device according to claim 11 , wherein the mountable parts extend in an array direction of the plurality of coils. 15. The coil device according to claim 11 , wherein the mountable parts of either of the coils next to each other and the mountable parts of the other coil extend in substantially the same direction. 16. The coil device according to claim 11 , wherein the core includes a top board covering tops of the plurality of coils. 17. The coil device according to claim 11 , wherein a width of at least one of the coils is larger than a length of at least one of the coils perpendicular to its height direction.
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Frequently asked questions
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- What does patent US11508518B2 cover?
- A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F27/24. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 22 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).