Weft knit interdigitated electrodes for automotive interior heating elements
US-12012022-B2 · Jun 18, 2024 · US
Seat heater device
US9403461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9403461-B2 |
| Application number | US-201114124518-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 8, 2011 |
| Priority date | Jun 8, 2011 |
| Publication date | Aug 2, 2016 |
| Grant date | Aug 2, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A seat heater device initiates power supply upon operation of a switch by a seat occupant within a vehicle interior and includes a heater for warming installed in a seat within the vehicle interior and a control unit for controlling energization of the heater for warming. The control unit includes a low-voltage detecting means for detecting whether an input voltage is a regular drive voltage value of the control unit or a voltage value lower than a predetermined voltage value and a switching element that is turned on when the low-voltage detecting means detects the regular drive voltage value of the control unit and turned off when the low-voltage detecting means detects a voltage value lower than the predetermined voltage value. This configuration can avoid heat generation of the switching element even if a leakage occurs in an electronic circuit within the switch due to, for example, insulation failure.
First claim
Opening claim text (preview).
The invention claimed is: 1. A seat heater device operable to initiate power supply upon operation of a switch by a seat occupant within a vehicle interior, the seat heater device comprising: a heater for warming installed in a seat within the vehicle interior; and a control unit operable to control energization of the heater for warming, the control unit comprising: a low-voltage detecting means operable to detect whether a drive voltage of the control unit is a regular drive voltage value of the control unit or a voltage value lower than a predetermined voltage value; and a switching element that is turned on when the low-voltage detecting means detects the regular drive voltage value of the control unit, wherein the control unit turns off the switching element when the low-voltage detecting means detects a voltage value lower than the predetermined voltage value due to a reduction in the drive voltage of the control unit even when a drive voltage applied to the heater for warming is not reduced. 2. The seat heater device according to claim 1 , wherein the low-voltage detecting means produces the predetermined voltage value for comparison with use of a zener diode.
Assignees
Inventors
Classifications
characterised by the use of electric means {(G05D23/1393 takes precedence)} · CPC title
- B60N2/5685Primary
Resistance · CPC title
- B60N2/5678Primary
characterised by electrical systems · CPC title
Switches · CPC title
Heaters specially adapted for seat warmers · CPC title
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Frequently asked questions
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- What does patent US9403461B2 cover?
- A seat heater device initiates power supply upon operation of a switch by a seat occupant within a vehicle interior and includes a heater for warming installed in a seat within the vehicle interior and a control unit for controlling energization of the heater for warming. The control unit includes a low-voltage detecting means for detecting whether an input voltage is a regular drive voltage va…
- Who is the assignee on this patent?
- Nishikawa Masanori, Takiguchi Masahiro, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60N2/5685. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 02 2016 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).