Electric wire protection device
US-2018248354-A1 · Aug 30, 2018 · US
Electric wire protection device
US10707676B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10707676-B2 |
| Application number | US-201815911492-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 5, 2018 |
| Priority date | Mar 13, 2017 |
| Publication date | Jul 7, 2020 |
| Grant date | Jul 7, 2020 |
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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.
An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of an electric wire based on a current value flowing through the voltage adjuster. The controller sets a first time constant as a time constant used to calculate the temperature information while the voltage adjuster is in the interrupted state, and sets a second time constant as a time constant used to calculate the temperature information while the voltage adjuster supplies power to the load. The first time constant is a value larger than the second time constant and equal to or larger than an actual time constant of the electric wire, and the second time constant is a value smaller than the actual time constant of the electric wire.
First claim
Opening claim text (preview).
What is claimed is: 1. An electric wire protection device comprising: a voltage adjuster that adjusts voltage on a power source side to be supplied to a load; and a controller that includes a temperature calculation part which calculates temperature information of an electric wire which connects a power source with the load based on a current value flowing through the voltage adjuster, and that is configured to cause the voltage adjuster to be in an interrupted state to interrupt connection between the power source and the load based on the temperature information, wherein the controller is configured to set a first time constant as a time constant which is used to calculate the temperature information while the voltage adjuster is in the interrupted state, and to set a second time constant as a time constant which is used to calculate the temperature information while the voltage adjuster supplies power to the load, the first time constant has a value larger than the second time constant and equal to or larger than an actual time constant of the electric wire, and the second time constant has a value smaller than the actual time constant of the electric wire. 2. The electric wire protection device according to claim 1 , wherein the first time constant has a value larger than an actual time constant of the electric wire.
Assignees
Inventors
Classifications
Temperature calculation based on spatial modeling, e.g. spatial inter- or extrapolation · CPC title
Temperature measurement using electric or magnetic components already present in the system to be measured · CPC title
Application of thermometers in motors, e.g. of a vehicle · CPC title
responsive to abnormal temperature {(specially adapted for electric machines H02H7/0852)} · CPC title
- H02H6/00Primary
Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images · CPC title
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- What does patent US10707676B2 cover?
- An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of an electric wire based on a current value flowing through the voltage adjuster. The controller sets a first time constant as a time constant used to calculate …
- Who is the assignee on this patent?
- Yazaki Corp, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02H6/00. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 07 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).