GB1418812A - Temperature control for electrically heatable window - Google Patents

Temperature control for electrically heatable window

Info

Publication number
GB1418812A
GB1418812A GB4772973A GB4772973A GB1418812A GB 1418812 A GB1418812 A GB 1418812A GB 4772973 A GB4772973 A GB 4772973A GB 4772973 A GB4772973 A GB 4772973A GB 1418812 A GB1418812 A GB 1418812A
Authority
GB
United Kingdom
Prior art keywords
bus
lead
screen
thermal
windscreen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4772973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sierracin Corp
Original Assignee
Sierracin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sierracin Corp filed Critical Sierracin Corp
Publication of GB1418812A publication Critical patent/GB1418812A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10183—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
    • B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0236—Industrial applications for vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/035—Electrical circuits used in resistive heating apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

1418812 Heated windscreen SIERRACIN CORP 12 Oct 1973 [13 Oct 1972] 47729/73 Heading H5H To avoid breakage during handling, a thermal switch 28 controlling a heated windscreen is mounted in thermal contact with a power supply lead 17 (e.g. a bus-bar) at a position beyond the edge of the windscreen. As shown, the heated screen comprises a carrier film 24 of polyethylene terephthalate to which a transparent resistive film is applied, sandwiched between a pair of polyvinyl butyral interlayers 23 which are bonded to external glass sheets 22. The film conductor is divided into two halves by a vertical scribe line (Fig. 1, not shown) and is supplied from two phases of a three phase alternator (the third phase supplying the rear window) by three bus-bars, two of which extend in contact with both halves of the conductor and the other of which extends over half of the conductor. The three bus-bars have leads 11, 17 and 14 separated by scribe lines by which they are connected to alternator 27. One of them preferably has an increased resistance section formed as shown by reducing its cross-sectional area at 32; or by inserting a high resistivity material, e.g. nichrome, chromel or Inconel, in the copper bus lead so that the heat dissipation in that section of the lead approximates to that in the windscreen. The thermal switch 28, which is mounted in thermal contact with this section thus senses the same temperature as in the screen. Alternatively by utilizing the known relative power dissipation characteristics of the bus lead 17 and the heated screen, the operating temperature of the switch 28 may be set to take account of the temperature difference between bus lead 17 and screen. Where the thermal environment of the screen and bus lead 17 differ a heat sink may be mounted on the thermal switch or adjacent the lead 17 to equalize the thermal environment. The important feature, namely that the thermal switch lies outside the edge of the screen is achieved by providing the bus lead connecting portions in a tab 12 which comprises a pair of flexible plastics sheets 26 sandwiching the projecting bus leads 11, 17 and 14 and extending between the interlayers 23 to the edge of carrier 24.
GB4772973A 1972-10-13 1973-10-12 Temperature control for electrically heatable window Expired GB1418812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30040372A 1972-10-13 1972-10-13

Publications (1)

Publication Number Publication Date
GB1418812A true GB1418812A (en) 1975-12-24

Family

ID=23158957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4772973A Expired GB1418812A (en) 1972-10-13 1973-10-12 Temperature control for electrically heatable window

Country Status (6)

Country Link
US (1) US3790745A (en)
JP (1) JPS49132732A (en)
CA (1) CA999037A (en)
DE (1) DE2350404A1 (en)
FR (1) FR2203011B3 (en)
GB (1) GB1418812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381722B2 (en) 2010-04-20 2016-07-05 Pilkington Group Limited Manufacturing process for glazing with integral wiring

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944893A (en) * 1973-10-29 1976-03-16 Trw Inc. Vehicle window heater control device
US3982092A (en) * 1974-09-06 1976-09-21 Libbey-Owens-Ford Company Electrically heated zoned window systems
CA1234892A (en) * 1984-02-16 1988-04-05 Pierre Taillefer Security tag detection system
USRE33343E (en) * 1984-06-14 1990-09-18 Donnelly Corporation Crack detector for electrically conductive windshield
US4565919A (en) * 1984-06-14 1986-01-21 Donnelly Corporation Crack detector for electrically conductive windshield
JPS62294887A (en) * 1986-05-20 1987-12-22 三洋電機株式会社 Through-vision plate
DE3741244A1 (en) * 1987-12-05 1989-06-15 Bosch Gmbh Robert HEATED DISC
US4894514A (en) * 1988-07-05 1990-01-16 Ppg Industries, Inc. Heated transparency with malfunction detection means
GB9423900D0 (en) * 1994-11-26 1995-01-11 Pifco Ltd Improvements to thick film elements
US6359265B1 (en) 2001-02-05 2002-03-19 The Raymond Corporation Heated glass guard with electronic control for forklift trucks
US6559419B1 (en) 2001-08-03 2003-05-06 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Multi-zone arrangement for heatable vehicle window
US6734396B2 (en) 2001-09-07 2004-05-11 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Heatable vehicle window with different voltages in different heatable zones
US6521868B1 (en) * 2001-11-02 2003-02-18 Ford Global Technologies, Inc. Method and apparatus for heating a portion of a vehicle
DE10208552B4 (en) * 2002-02-27 2006-03-02 Saint-Gobain Glass Deutschland Gmbh Electrically heatable tempered glass pane
US7340907B2 (en) * 2004-05-10 2008-03-11 Computer Process Controls, Inc. Anti-condensation control system
EP1803328B1 (en) * 2004-09-30 2012-04-11 Watlow Electric Manufacturing Company Modular layered heater system
CN106255627A (en) * 2014-04-28 2016-12-21 旭硝子株式会社 Electrical heating window plate body
US20160347028A1 (en) * 2015-05-26 2016-12-01 Asahi Glass Company, Limited Stacked plate for window and method of manufacturing stacked plate for window
JP6922210B2 (en) * 2016-12-20 2021-08-18 Ａｇｃ株式会社 Vehicle window glass
EP4398677A1 (en) 2023-01-05 2024-07-10 Saint-Gobain Glass France A windshield defogging system for a vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462207A (en) * 1947-05-28 1949-02-22 Westinghouse Electric Corp Temperature regulating system
US2507036A (en) * 1948-08-23 1950-05-09 Douglas Aircraft Co Inc Vehicle windshield
US2490433A (en) * 1948-08-28 1949-12-06 Douglas Aircraft Co Inc Electrical heated windshield
US2600313A (en) * 1950-05-08 1952-06-10 Westinghouse Electric Corp Temperature regulating system
US3529074A (en) * 1968-05-07 1970-09-15 Sierracin Corp External busbar system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381722B2 (en) 2010-04-20 2016-07-05 Pilkington Group Limited Manufacturing process for glazing with integral wiring

Also Published As

Publication number Publication date
US3790745A (en) 1974-02-05
JPS49132732A (en) 1974-12-19
FR2203011A1 (en) 1974-05-10
CA999037A (en) 1976-10-26
DE2350404A1 (en) 1974-04-25
FR2203011B3 (en) 1975-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees