US4616693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and/or air conditioning apparatus for automotive vehicles
Assignee: SUEDDEUTSCHE KUEHLERFABRIK JULIUS FR BEHR & Co KG STUTTGART GERMANY GmbH
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Filing: 1984-08-28
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Granted: 1986-10-14
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Expires: 2004-08-28
Abstract
Abstract Disclosed is a heating and/or air-conditioning installation for automotive vehicles comprising at least one blower and a flap for affecting the flow of air, and an electronic control device for rotational speed control or speed shifting. The control device which comprises one or more electronic components capable of generating significant amounts of heat, is mounted on the flap, in order to cool the electronic components while only minimally interfering with the flow of air in the heating and/or air-conditioning installation.
Inventors
- 👤 Kurt Dietzsch
- 👤 Karlheinz Witzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:35
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009; H05K7/20136; H05K7/20145; B; B60; B60H; B60H1/00; B60H1/00507; B60H1/00514; B60H1/00521; B60H1/00642; B60H1/00664; B60H1/00007; B60H1/00021; B60H2001/00078; B60H2001/00085; B60H2001/00614
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
53 words
A heating and/or air-conditioning installation for automotive vehicles, comprising: at least one blower; at least one flap which affects the air flow through the installation; an electronic control element which includes at least one heatgenerating electronic component mounted on said flap; and a thermally conductive connection for joining said flap to said component.
Claim 2
Dependent Claim
53 words
A heating and/or air-conditioning installation for automotive vehicles, comprising: at least one blower; at least one flap which affects the air flow through the installation; an electronic control element which includes at least one heatgenerating electronic component mounted on said flap; and a thermally conductive connection for joining said flap to said component.
Claim 3
Dependent Claim
26 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said electronic control element comprises a device for controlling the rotational speed of the blower.
Claim 4
Dependent Claim
18 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap comprises a thermally conductive material.
Claim 5
Dependent Claim
18 words
A heating and/or air-conditioning installation as claimed in claim 3, wherein said thermally conductive material comprises a metal.
Claim 6
Dependent Claim
26 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap comprises areas of increased thickness in the area adjacent to said electronic component.
Claim 7
Dependent Claim
17 words
A heating and/or air-conditioning installation as claimed in claim 5, wherein said flap comprises an extruded flap.
Claim 8
Dependent Claim
31 words
A heating and/or air-conditioning installation as claimed in claim 1, said component comprises at least two power transistors and a cable for connecting said power transistors with said electronic control element.
Claim 9
Dependent Claim
18 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap comprises a temperature mixing baffle.
Claim 10
Dependent Claim
22 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap is positioned on the upstream side of said blower.
Claim 11
Dependent Claim
19 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap comprises a fresh air/circulating air baffle.
Claim 12
Dependent Claim
28 words
A heating and/or air-conditioning installation as claimed in claim 1, wherein said flap includes means for increasing the heat transfer surface area and/or guiding the flow of air.
Claim 13
Dependent Claim
34 words
A heating and/or air-conditioning installation as claimed in claim 11, wherein said means is selected from shaped beads in the flap material, ribs molded onto the flap or metal strips welded to the flap.
Claim 14
Dependent Claim
43 words
A heating and/or air-conditioning installation as claimed in claim 7, wherein said flap comprises a plurality of orifices and said power transistors include a plurality of connector pins, wherein said connector pins pass through said orifices to the reverse side of said flap.
Claim 15
Dependent Claim
34 words
A heating and/or air-conditioning installation as claimed in claim 7, further comprising a printed circuit plate mounted on the reverse side of said flap, wherein said control element is mounted on said circuit plate.
Claim 16
Dependent Claim
33 words
A heating and/or air-conditioning installation as claimed in claim 7, further comprising an orifice between said power transistors, and a hood-like cover over said orifice, wherein said control element extends into said orifice.
Claim 17
Dependent Claim
26 words
A heating and/or air-conditioning installation as claimed in claim 7, further comprising a vaulting between said power transistors, wherein said control element extends into said orifice.
Claim 18
Dependent Claim
39 words
A heating and/or air-conditioning installation as claimed in claim 7, wherein said control device comprises at least one structural element which is equipped with a synthetic plastic cover, embedded in a synthetic resin or provided with a plastic coating.
Claim 19
Dependent Claim
18 words
A heating and/or air-conditioning installation as claimed in claim 17, wherein said structural element comprises a PTC resistor.
Claim 20
Dependent Claim
36 words
A heating and/or air-conditioning installation as claimed in claim 18, wherein said PTC resistor is positioned between said flap and a metal plate, said flap and metal plate serving as electric connectors for said PTC resistor.
Claim 21
Dependent Claim
17 words
A heating and/or air-conditioning installation as claimed in claim 17, wherein said component comprises a power resistance.
Claim 22
Dependent Claim
39 words
A heating and/or air-conditioning installation as claimed in claim 20, wherein said flap comprises a plurality of metallic zones electrically insulated from one another, wherein said zones function as electrical connectors for said power resistor and as cooling bodies.
Claim 23
Dependent Claim
29 words
A heating and/or air-conditioning installation as claimed in claim 18, wherein said flap comprises a frame and a removable plate, wherein said electronic component is mounted on said plate.
Claim 24
Dependent Claim
21 words
A heating and/or air-conditioning installation as claimed in claim 1, further comprising at least one temperature sensor arranged on said flap.
References Cited (Backward Citations)
US3364838A
Cited
US4500944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |