Transformer, power supply, and medical system
US-2020294708-A1 · Sep 17, 2020 · US
Power conversion device
US12191777B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12191777-B2 |
| Application number | US-202217749798-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 20, 2022 |
| Priority date | May 31, 2021 |
| Publication date | Jan 7, 2025 |
| Grant date | Jan 7, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
This power conversion device includes a magnetic core which has a gap formed by cutting out a part of an annular shape, a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction, and a resin secondary molded body which has an exposed portion in which a surface of a portion of the primary molded body that covers the first end portion and the second end portion is exposed, and contains the primary molded body.
First claim
Opening claim text (preview).
What is claimed is: 1. A power conversion device comprising: a magnetic core which has a gap formed by cutting out a part of an annular shape; a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction; and a resin secondary molded body which has an exposed portion in which a surface of a portion of the primary molded body that covers the first end portion and the second end portion is exposed, and contains the primary molded body, wherein the primary molded body has a groove portion in which a first end surface exposed to the gap of the first end portion and a second end surface exposed to the gap of the second end portion are exposed, and wherein the secondary molded body has a fitting wall portion from an inner wall surface on the first end surface side of the groove portion to an inner wall surface on the second end surface side with the first end surface and the second end surface exposed. 2. A power conversion device comprising: a magnetic core which has a gap formed by cutting out a part of an annular shape; a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction; and a resin secondary molded body which has an exposed portion in which a surface of a portion of the primary molded body that covers the first end portion and the second end portion is exposed, and contains the primary molded body, wherein the primary molded body has a groove portion in which a first end surface exposed to the gap of the first end portion and a second end surface exposed to the gap of the second end portion are exposed, and wherein the secondary molded body has a claw portion that is locked from the outside of the magnetic core in the radial direction to an inside in the radial direction on a surface of the primary molded body. 3. A power conversion device comprising: a magnetic core which has a gap formed by cutting out a part of an annular shape; a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction; and a resin secondary molded body which has an exposed portion in which a surface of a portion of the primary molded body that covers the first end portion and the second end portion is exposed, and contains the primary molded body, wherein the primary molded body has a groove portion in which a first end surface exposed to the gap of the first end portion and a second end surface exposed to the gap of the second end portion are exposed, wherein the secondary molded body has a fitting wall portion from an inner wall surface on the first end surface side of the groove portion to an inner wall surface on the second end surface side with the first end surface and the second end surface exposed, and wherein the secondary molded body has a claw portion that is locked from the outside of the magnetic core in the radial direction to the inside in the radial direction on the surface of the primary molded body. 4. The power conversion device according to claim 1 , further comprising: a fastening structure in which an end portion of a bus bar inserted into the inside of the magnetic core in the radial direction is fastened, wherein the fastening structure is held in the primary molded body and arranged adjacent to the magnetic core. 5. The power conversion device according to claim 2 , further comprising: a fastening structure in which the end portion of the bus bar inserted into the inside of the magnetic core in the radial direction is fastened, wherein the fastening structure is held in the primary molded body and arranged adjacent to the magnetic core. 6. The power conversion device according to claim 3 , further comprising: a fastening structure in which the end portion of the bus bar inserted into the inside of the magnetic core in the radial direction is fastened, wherein the fastening structure is held in the primary molded body and arranged adjacent to the magnetic core.
Assignees
Inventors
Classifications
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Constructional adaptation of the sensor to specific applications · CPC title
Protection, e.g. with housings against stray fields · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12191777B2 cover?
- This power conversion device includes a magnetic core which has a gap formed by cutting out a part of an annular shape, a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction, and a resi…
- Who is the assignee on this patent?
- Hitachi Astemo Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02M7/003. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 07 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).