Air conditioner having positive temperature coefficient heater

US9182134B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9182134-B2
Application numberUS-95399010-A
CountryUS
Kind codeB2
Filing dateNov 24, 2010
Priority dateNov 26, 2009
Publication dateNov 10, 2015
Grant dateNov 10, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is an air conditioner including: a heater control section ( 54 ) for carrying out duty control on a positive temperature coefficient (PTC) heater ( 55 ); and a current detecting section ( 53 ) for detecting a current value of the PTC heater ( 55 ). The PTC heater ( 55 ) starts to be driven at a predetermined duty ratio. When the current value detected by the current detecting section ( 53 ) takes a peak (P), a duty ratio increasing process of increasing the duty ratio of the PTC heater ( 55 ) by a predetermined amount is repeated until the duty ratio reaches to 100%.

First claim

Opening claim text (preview).

What is claimed is: 1. An air conditioner, comprising: an indoor unit having an inlet and an outlet; an indoor heat exchanger arranged in the indoor unit; a blower duct connecting between the inlet and the outlet inside the indoor unit and forming a blower passage; a blower fan arranged in the blower passage; an outdoor unit having a housing; an outdoor heat exchanger arranged in the housing; an outdoor fan arranged in the housing; a compressor connected to the indo…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9182134B2 cover?
Provided is an air conditioner including: a heater control section ( 54 ) for carrying out duty control on a positive temperature coefficient (PTC) heater ( 55 ); and a current detecting section ( 53 ) for detecting a current value of the PTC heater ( 55 ). The PTC heater ( 55 ) starts to be driven at a predetermined duty ratio. When the current value detected by the current detecting section (…
Who is the assignee on this patent?
Ariga Tohru, Sharp Kk
What technology area does this patent fall under?
Primary CPC classification F24F1/022. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 10 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).