Power converter and power converter for railroad vehicle
US-2019148259-A1 · May 16, 2019 · US
Power converter for railroad vehicle
US10906405B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10906405-B2 |
| Application number | US-201816017075-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2018 |
| Priority date | Aug 1, 2017 |
| Publication date | Feb 2, 2021 |
| Grant date | Feb 2, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
In this power converter for a railroad vehicle, a cooling portion includes a first cooling portion arranged to block up an opening while ensuring watertightness and to come into contact with a semiconductor element through the opening, and a second cooling portion provided to be opposed to an outer surface of a power converter body not provided with the opening and adjacent to a side provided with the first cooling portion.
First claim
Opening claim text (preview).
What is claimed is: 1. A power converter for a railroad vehicle comprising: a power converter body adapted to be loaded on a railroad vehicle and provided therein with a semiconductor element; and a cooling portion provided outside the power converter body for radiating heat from an inside of the power converter body, wherein the power converter body includes a first surface at one of upper, lower and side surfaces and a second surface at another of upper, lower and side surfaces that is adjacent to and different from the first surface, an opening is formed only on an outer surface of the first surface, and the cooling portion includes a first cooling portion having a first radiation fin portion and arranged on the first surface to block the opening while ensuring watertightness and to come into contact with the semiconductor element through the opening, and a second cooling portion having a second radiation fin portion and provided to be opposed to an outer surface of the second surface not provided with the opening. 2. The power converter for a railroad vehicle according to claim 1 , wherein the second cooling portion is arranged to be separated from and opposed to the outer surface of the second surface of the power converter body. 3. The power converter for a railroad vehicle according to claim 2 , further comprising a spacer provided between the second cooling portion and the outer surface of the second surface of the power converter body. 4. The power converter for a railroad vehicle according to claim 1 , wherein the cooling portion further includes a pipe member arranged across the first cooling portion and the second cooling portion, and the pipe member is configured to perform heat conduction between the first cooling portion provided to come into contact with the semiconductor element for directly receiving heat from the inside of the power converter body and the second cooling portion. 5. The power converter for a railroad vehicle according to claim 4 , wherein the pipe member is provided to come into contact with the semiconductor element. 6. The power converter for a railroad vehicle according to claim 5 , wherein the pipe member is formed to have a rectangular section. 7. The power converter for a railroad vehicle according to claim 1 , further comprising an annular waterproof member provided between the power converter body and the first cooling portion to ensure watertightness in a vicinity of an outer peripheral portion of the opening. 8. The power converter for a railroad vehicle according to claim 1 , wherein the first cooling portion and the second cooling portion are connected to form an L-shape such that the first radiation fin portion and the second radiation fin portion protrude in directions different from each other.
Assignees
Inventors
Classifications
Electric locomotives or railcars (characterised by power transmission B61C9/00; electrical features B60L; H02) · CPC title
the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels · CPC title
Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20863 takes precedence) · CPC title
Rail vehicles · CPC title
Current source inverters · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10906405B2 cover?
- In this power converter for a railroad vehicle, a cooling portion includes a first cooling portion arranged to block up an opening while ensuring watertightness and to come into contact with a semiconductor element through the opening, and a second cooling portion provided to be opposed to an outer surface of a power converter body not provided with the opening and adjacent to a side provided w…
- Who is the assignee on this patent?
- Fuji Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60L9/24. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 02 2021 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).