US5560711A
Expired / Lapsed
US
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Thermal comfort sensing device
Assignee: LG Electronics Inc
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Filing: 1994-09-30
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Granted: 1996-10-01
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Expires: 2014-09-30
Abstract
Abstract A temperature comfort sensing device is disclosed which comprises a single diaphragm having a thin film heater and a temperature sensor. A plurality of thermocouples, a room temperature sensor and a black body are formed over the single diaphragm. The thin film heater corresponds to an internal heat exchanging mechanism of a human being, and the thermocouples serve to sense skin temperature condition.
Inventors
- 👤 Jong U. Bu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
G; G01; G01W; G01W1/00; G01W1/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
214 words
A temperature comfort sensing device comprising: a first diaphragm including a first substrate having a recessed structure, a first oxide film formed over the first substrate, a first nitride film formed over the first oxide film, a thin film heater formed at a central portion of the first nitride film, the thin film heater having spaced heating portions, a first temperature sensor formed on the first nitride film for controlling a temperature of the thin film heater, the first temperature sensor having spaced sensing portions positioned among the spaced heating portions of the thin film heater, and a second nitride film formed over the first nitride film, covering the thin film heater and the first temperature sensor; a plurality of thermocouples arranged at the second nitride film above the thin film heater and the first temperature sensor and insulated from one another by a second oxide film; a third oxide film formed over the second nitride film and covering the thermocouples; a second temperature sensor formed at one side portion of the third oxide film and adapted to sense a room temperature; a third nitride film formed over the third oxide film and covering the first and second temperature sensors; and a black body formed at a central portion of the third nitride film.
Claim 2
Dependent Claim
214 words
A temperature comfort sensing device comprising: a first diaphragm including a first substrate having a recessed structure, a first oxide film formed over the first substrate, a first nitride film formed over the first oxide film, a thin film heater formed at a central portion of the first nitride film, the thin film heater having spaced heating portions, a first temperature sensor formed on the first nitride film for controlling a temperature of the thin film heater, the first temperature sensor having spaced sensing portions positioned among the spaced heating portions of the thin film heater, and a second nitride film formed over the first nitride film, covering the thin film heater and the first temperature sensor; a plurality of thermocouples arranged at the second nitride film above the thin film heater and the first temperature sensor and insulated from one another by a second oxide film; a third oxide film formed over the second nitride film and covering the thermocouples; a second temperature sensor formed at one side portion of the third oxide film and adapted to sense a room temperature; a third nitride film formed over the third oxide film and covering the first and second temperature sensors; and a black body formed at a central portion of the third nitride film.
Claim 3
Dependent Claim
37 words
A temperature comfort sensing device in accordance with claim 1, wherein the plurality of thermocouples have the same width and each of the thermocouples comprises a pair of thermoelectric films connected to each other through contact holes.
Claim 4
Dependent Claim
33 words
A temperature comfort sensing device in accordance with claim 2, wherein each of the plurality of thermocouples is made of a metal selected from a group consisting of Bi/Sb, Ni--Cu alloy/Cu and BiTe(N)/BiTe(P).
Claim 5
Dependent Claim
27 words
A temperature comfort sensing device in accordance with claim 3, wherein each of the plurality of thermocouples is made of polysilicon doped with boron ions and Al.
Claim 6
Dependent Claim
23 words
A temperature comfort sensing device in accordance with claim 2, wherein the black body is made of one of Au and Ni--Cr alloy.
References Cited (Backward Citations)
US3758830A
Cited
US5059543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-01 | 2000-04-01 | 2000-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-01 | 2004-04-01 | 2004-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-01 | 2008-04-01 | 2008-10-01 | $7700.00 | Window Closed / Lapsed |