Electric connector and temperature-sensing mechanism within
US-9362690-B2 · Jun 7, 2016 · US
Power cord
US9812819B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9812819-B2 |
| Application number | US-201414571116-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2014 |
| Priority date | Dec 13, 2013 |
| Publication date | Nov 7, 2017 |
| Grant date | Nov 7, 2017 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A power cord includes a plug and a load connection portion connected to a load. The plug contains a plurality of plug pins which are respectively inserted in plug pin insertion holes of a power socket and connected to the power socket and a plurality of PTC thermistors, at least one of which is provided for each of the plug pins to detect a temperature of the corresponding plug pin. The PTC thermistors form one series circuit, and the power cord includes a shut-off device which turns off power supply to the load connection portion from the plug pins when a resistance value of the series circuit is equal to or higher than a predetermined value.
First claim
Opening claim text (preview).
What is claimed is: 1. A power cord comprising: a plug including a plurality of plug pins which are adapted to be respectively inserted in plug pin insertion holes of a power socket and connected with the power socket, and a plurality of PTC (Positive Temperature Coefficient) thermistors, at least one of which is provided for each of the plug pins to detect a temperature of the corresponding plug pin; and a load connection portion to be connected to a load, wherein the PTC thermistors form one series circuit, and wherein the power cord further comprises a shut-off device configured to turn off power supply to the load connection portion from the plug pins when a resistance value of the series circuit is equal to or higher than a predetermined value. 2. A power cord comprising: a plug including a plurality of plug pins which are adapted to be respectively inserted in plug pin insertion holes of a power socket and connected with the power socket, and a plurality of PTC (Positive Temperature Coefficient) thermistors, at least one of which is provided for each of the plug pins to detect a temperature of the corresponding plug pin; and a load connection portion to be connected to a load, which includes a control circuit for controlling an amount of a current inputted through the plug pins and the load connection portion, wherein the PTC thermistors form one series circuit, and wherein the power cord further comprises a communications circuit configured to transmit a notification signal to the control circuit when a resistance value of the series circuit is equal to higher than a predetermined value.
Assignees
Inventors
Classifications
- H01R13/6683Primary
with built-in sensor · CPC title
making use of a thermal sensor, e.g. thermistor, heated by the excess current (also responsive to the temperature of the protected device H02H5/041, thermal images H02H6/00) · CPC title
- H01R13/7137Primary
with thermal interrupter (H01R13/7132 takes precedence) · CPC title
the temperature dependent resistor being disposed parallel to a heating wire, e.g. in a heating blanket · CPC title
- H01R13/665Primary
with built-in electronic circuit (H01R13/70, H01R13/719 take precedence) · CPC title
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Frequently asked questions
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- What does patent US9812819B2 cover?
- A power cord includes a plug and a load connection portion connected to a load. The plug contains a plurality of plug pins which are respectively inserted in plug pin insertion holes of a power socket and connected to the power socket and a plurality of PTC thermistors, at least one of which is provided for each of the plug pins to detect a temperature of the corresponding plug pin. The PTC the…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01R13/6683. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 07 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).