WO2017202612A1 - Agencement de chauffage pour systèmes d'essuie-glace dans des véhicules, et système d'essuie-glace - Google Patents

Agencement de chauffage pour systèmes d'essuie-glace dans des véhicules, et système d'essuie-glace Download PDF

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Publication number
WO2017202612A1
WO2017202612A1 PCT/EP2017/061191 EP2017061191W WO2017202612A1 WO 2017202612 A1 WO2017202612 A1 WO 2017202612A1 EP 2017061191 W EP2017061191 W EP 2017061191W WO 2017202612 A1 WO2017202612 A1 WO 2017202612A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
electrically
heating arrangement
wiper
arrangement according
Prior art date
Application number
PCT/EP2017/061191
Other languages
English (en)
Inventor
Michael Schaeuble
Gerhard Oehler
Original Assignee
Valeo Systèmes d'Essuyage
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 Valeo Systèmes d'Essuyage filed Critical Valeo Systèmes d'Essuyage
Publication of WO2017202612A1 publication Critical patent/WO2017202612A1/fr

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Classifications

    • 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
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3803—Wiper blades heated wiper blades
    • B60S1/3805—Wiper blades heated wiper blades electrically
    • 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
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/487—Liquid supply therefor the liquid being heated
    • B60S1/488—Liquid supply therefor the liquid being heated electrically
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H05B3/565—Heating cables flat cables
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/58—Heating hoses; Heating collars

Definitions

  • the invention relates to a heating arrangement for wiper systems in vehicles according to the preamble of Claim 1 .
  • the invention further relates to a wiper system with a heating arrangement according to the invention.
  • DE 10 2014 018 372 A1 discloses a heating arrangement according to the preamble of Claim 1 . Provision is particularly made in said document for a fluid line to be coated with an electrically conductive varnish, which for example contains carbon black, graphite, carbon nanotubes or similar conductive particles, and for the electrically conductive varnish to be connected to the two poles of a (DC) voltage source.
  • a heating arrangement thus brings about the heating of the fluid line which serves to deliver a washing fluid to spray openings arranged for example in the region of a wiper blade.
  • a heating arrangement of this type makes it possible to prevent freezing of the washing fluid in the fluid line at low temperatures.
  • WO 2013/056821 A1 has disclosed a heating arrangement for wiper systems in vehicles according to the preamble of Claim 1 in which a heating element, which comprises at least carbon nanotubes and is connected to a voltage source, is arranged in the region of a wiper rubber of a wiper blade.
  • a heating element which comprises at least carbon nanotubes and is connected to a voltage source
  • the known heating arrangements thus have only a single electrically and thermally conducting element. Disclosure of the invention Taking the prior art illustrated as the starting point, the object on which the invention is based is to develop a heating arrangement for wiper systems in vehicles according to the preamble of Claim 1 in such a way that an additional functionality of the heating arrangement can be achieved with minimum outlay in terms of equipment.
  • the idea on which the invention is based is to additionally connect one and the same voltage source or the connecting leads thereof to a second heating element and to arrange this second heating element in a region of the wiper system which is not arranged in operative connection with the first electrically and thermally conducting heating element.
  • Advantageous developments of the heating arrangement according to the invention for wiper systems in vehicles are listed in the subclaims. All combinations of at least two of the features disclosed in the claims, the description and/or the figures fall within the scope of the invention. It is particularly preferred if the electrically and thermally conducting element contains at least nanotubes made of plastic. Such an embodiment makes it possible in a particularly simple manner to arrange the (heating) element in operative connection with a hose line for a washing fluid.
  • the (heating) element comprises carbon particles (carbon black) or the like, for example.
  • the electrically and thermally conducting element can simultaneously heat several hose lines which are required for example in the case of wiper blades in which both longitudinal sides have arranged thereon respective spray nozzles for the washing fluid so that these can be controlled in dependence on the movement or wiping direction of the wiper blade, provision is made for the first heating element or the thermally conducting element to be arranged at a distance to the at least one hose line. There thus occurs heat transfer by radiant heat from the thermally conducting element in the direction of the hose line.
  • this design makes it possible to be able to use hose lines known per se for the washing fluid.
  • the thermally conducting element In order, on the one hand, to avoid undesired radiation by the electrically and thermally conducting element in directions in which no hose line for the washing fluid is arranged and, moreover, to make possible particularly protected mounting of the electrically and thermally conducting element, provision can be made for the thermally conducting element to be arranged in a cavity of a casing surrounding the several hose lines.
  • Such an embodiment furthermore makes it possible for the (heating) element to be installed in a particularly well-protected manner with respect to mechanical forces and media without the (heating) element itself having to be specially designed or provided with a protection.
  • the electrically and thermally conducting (heating) element is arranged between the several hose lines preferably at the same distance to the hose lines.
  • the electrically and thermally conducting element forms at least a partial section of the at least one hose line.
  • the electrically and thermally conducting element forms at least a partial section of the at least one hose line.
  • radiant heat does not first have to penetrate the material of the hose line from outside, but instead the electrically or thermally conducting material is already present in the hose line in direct contact with the washing fluid.
  • the electrically and thermally conducting element is surrounded at least in certain areas by an electrically nonconducting insulation layer.
  • the second heating element can be an electrically conducting foil, which is connected with the wiper blade in the region of a strip-shaped (metallic) carrier element.
  • the invention also comprises a wiper system using a heating arrangement according to the invention described thus far.
  • the wiper system has the same advantages as have been explained within the context of the heating arrangement. Further advantages, features and details of the invention will become apparent from the description hereinbelow of preferred exemplary embodiments and with reference to the drawing, in which:
  • Figure 1 shows a simplified illustration of a wiper system for vehicles with a heating arrangement using two heating elements
  • Figure 2 shows a section in the plane 11-11 of Figure 1 in the region of an electrically and thermally conducting element
  • Figure 3 shows the connection region of a wiper blade using a thermally and electrically conducting element in a perspective illustration
  • Figure 4 each show cross sections in the region of two hose lines for to channelling a washing fluid in connection with a thermally Figure 6 and electrically conducting element.
  • FIG. 1 and 2 illustrate a wiper system 100 for a vehicle in highly simplified form.
  • the wiper system 100 has a heating arrangement 10 which is designed to (electrically) heat not only two hose lines 1 1 , 12 for channelling a washing fluid but also a wiper blade 1 of the wiper system 100.
  • the heating arrangement 10 is designed to have two electrical connecting leads 16, 17 which are connected to different poles of a (DC) voltage source 15 and which are surrounded at least in certain areas by an electrically and thermally conducting element 21 as first heating element 20.
  • the element 21 is produced for example by an extrusion process and has two through-openings 22, 23 which are arranged parallel to one another and which at the same time form a part of the hose lines 1 1 , 12, the element 21 being formed in one piece, that is to say that the two hose lines 1 1 , 12 are connected to one another as a structural unit.
  • the two hose lines 1 1 , 12 are illustrated only over a part of their length.
  • the two hose lines 1 1 , 12 are connected, on the one hand, via a pump to a reservoir (not shown) for the washing fluid, and, on the other hand, to spray openings or spray nozzles for applying the washing fluid to a vehicle window.
  • the two hose lines 1 1 , 12 arranged parallel to one another have an at least virtually circular cross section (Figure 2).
  • the two connecting leads 16, 17 are arranged on mutually opposed sides of the two hose lines 1 1 , 12 and extend in a alignment with a centre plane 24 through which the centres or mid-points of the two hose lines 1 1 , 12 also extend.
  • the element 21 contains at least nanotubes made of carbon to form its electrical and thermal conductivity.
  • the two electrical connecting leads 1 6, 17 are arranged in direct contact with the material of the element 21 or annularly surrounded thereby.
  • the material of the first heating element 20 or of the element 21 is heated, and the washing fluid channelled within the hose lines 1 1 , 12 in the through-openings 22, 23 is thus also heated.
  • the element 21 is, moreover, surrounded by an electrical insulation layer 27.
  • the two connecting leads 1 6, 17 are connected in an electrically conducting manner to a heating foil 25 on the wiper blade 1 , which forms a second heating element 26.
  • the heating foil 25 is connected, on the side facing away from a wiper lip 2 of the wiper blade 1 to the upper sides of two strip-shaped carrier elements 3, 4 consisting of metal, for example by an adhesive bond or by bearing contact.
  • the wiper blade 1 illustrated in Figure 1 takes the form of a so-called flat wiper blade 1 , by contrast with a so-called bow wiper blade, as is also known from the prior art.
  • the second heating device 26 heats the wiper blade 1 as a result of the electrical resistance of the two carrier elements 3, 4.
  • the two connecting leads 16a, 17a are surrounded by an electrically and thermally conducting element 21 a which forms the first heating element 20a.
  • the two connecting leads 1 6a, 17a are connected to a connection plug 28 which serves, for example, to make electrical contact with the heating element 26 or the heating foil 25.
  • the element 21 a serves for heating the wiper blade 1 in the region of connection to a wiper arm (not shown) by radiant heat.
  • Figure 4 illustrates the case in which the first heating element 20b or the element 21 b is formed as an element which is separate from the two hose lines 1 1 b, 12b.
  • the two connecting leads 1 6b, 17b, together with the element 21 b, are surrounded by an electrically non-conducting insulation layer 29, the element 21 b being in the form of a strip between the two connecting leads 1 6b, 17b and being connected to the two connecting leads 1 6b, 17b.
  • the two hose lines 1 1 b, 12b are arranged on both sides at a slight distance to the element 21 b, the two hose lines 1 1 1 b, 12b being heated by radiant heat, as the arrows 31 are intended to illustrate. It is also essential that the same distance a is formed in each case between the insulation layer 29 or the element 21 b and the two hose lines 1 1 b, 12b.
  • Figure 5 illustrates the case in which the two hose lines 1 1 c, 12c are surrounded by a common casing 32 which forms a cavity 33 in an intermediate space between the two hose lines 1 1 c, 12c, in which cavity the element 21 c or the first heating element 21 c is arranged, the design and arrangement of the element 21 c with respect to the hose lines 1 1 c, 12c corresponding to the arrangement and design of Figure 4.
  • Figure 6 illustrates the case in which the two hose lines 1 1 d, 12d are arranged parallel to one another and are connected to one another in one piece via a central web 34.
  • the element 21 d or the first heating element 20d is again formed as a separate element from the two hose lines 1 1 d, 12d and structurally configured in accordance with Figures 4 and 5.
  • the two connecting leads 1 6b, 17b extend in alignment with the two hose lines 1 1 d, 12d, the element 21 d being arranged parallel to a centre plane 35 of the two hose lines 1 1 d, 12d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Resistance Heating (AREA)

Abstract

La présente invention concerne un agencement de chauffage (10) pour des systèmes d'essuie-glace (100) dans des véhicules avec des fils de connexion (16 ; 16a ; 16b, 17 ; 17a ; 17b), qui peuvent être connectés à une source de tension (15), les fils de connexion (16 ; 16a ; 16b, 17 ; 17a ; 17b) sont connectés à un élément électriquement et thermiquement conducteur (21 ; 21a à 21d) formant un premier élément chauffant (20 ; 20a à 20d). Selon la présente invention, les fils de connexion (16; 16a; 16b, 17; 17a; 17b) sont en outre connectés à un deuxième élément chauffant (26).
PCT/EP2017/061191 2016-05-23 2017-05-10 Agencement de chauffage pour systèmes d'essuie-glace dans des véhicules, et système d'essuie-glace WO2017202612A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016109396.3A DE102016109396A1 (de) 2016-05-23 2016-05-23 Heizeinrichtung für Wischanlagen in Fahrzeugen und Wischanlage
DE102016109396.3 2016-05-23

Publications (1)

Publication Number Publication Date
WO2017202612A1 true WO2017202612A1 (fr) 2017-11-30

Family

ID=58699133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/061191 WO2017202612A1 (fr) 2016-05-23 2017-05-10 Agencement de chauffage pour systèmes d'essuie-glace dans des véhicules, et système d'essuie-glace

Country Status (2)

Country Link
DE (1) DE102016109396A1 (fr)
WO (1) WO2017202612A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065471A (en) * 1990-11-09 1991-11-19 Sylvain Laplante Antifreeze self-spraying and -warming windshield wiper
US5327614A (en) * 1989-03-11 1994-07-12 Egner Walter Bruno Windshield cleaning system with pipe and conductor in wiper shaft
US20080000039A1 (en) * 2006-06-28 2008-01-03 Eugene Higgs Heated Wiper Assembly
US20110185531A1 (en) * 2008-09-26 2011-08-04 Valeo Systemes D'essuyage Wiper arm/wiper blade connection and wiper blade
WO2012150166A1 (fr) * 2011-05-04 2012-11-08 Valeo Systèmes d'Essuyage Dispositif pour fournir un fluide de lavage à un bras d'essuie-glace
US20120291216A1 (en) * 2010-02-10 2012-11-22 Valeo Systemes D'essuyage Wiper device for vehicle windows and wiper blade with a heating arrangement
WO2013056821A1 (fr) * 2011-10-22 2013-04-25 Audi Ag Dispositif de chauffage pour au moins un composant de véhicule à moteur placé à l'extérieur du véhicule à moteur et véhicule à moteur
US20130157489A1 (en) * 2011-12-19 2013-06-20 Jean-Michel Jarasson Electrical and hydraulic coupling device for a screen-wash supply and/or distribution system
EP2626257A2 (fr) * 2012-02-01 2013-08-14 Integrated Wiper Technologies LLC Système de balais d'essuie-glace doté d'un circuit de dégivrage et d'une pompe d'évacuation
US20130219647A1 (en) * 2010-09-29 2013-08-29 Valeo Systemes D'essuyage Pipe for heating and transporting a washer fluid for a windscreen wiper arm with two spray lines, wiper device and method of manufacture
DE102014018372A1 (de) * 2013-12-13 2015-06-18 Voss Automotive Gmbh Konfektionierte beheizbare Medienleitung sowie Verfahren zu deren Herstellung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413578B4 (de) * 1994-04-19 2005-12-15 Siemens Ag Zuführleitung
FR3039483B1 (fr) * 2015-07-27 2019-01-25 Valeo Systemes D'essuyage Conduite de transport d'un liquide lave-glace a encombrement reduit munie d'au moins un fil electrique coaxial

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327614A (en) * 1989-03-11 1994-07-12 Egner Walter Bruno Windshield cleaning system with pipe and conductor in wiper shaft
US5065471A (en) * 1990-11-09 1991-11-19 Sylvain Laplante Antifreeze self-spraying and -warming windshield wiper
US20080000039A1 (en) * 2006-06-28 2008-01-03 Eugene Higgs Heated Wiper Assembly
US20110185531A1 (en) * 2008-09-26 2011-08-04 Valeo Systemes D'essuyage Wiper arm/wiper blade connection and wiper blade
US20120291216A1 (en) * 2010-02-10 2012-11-22 Valeo Systemes D'essuyage Wiper device for vehicle windows and wiper blade with a heating arrangement
US20130219647A1 (en) * 2010-09-29 2013-08-29 Valeo Systemes D'essuyage Pipe for heating and transporting a washer fluid for a windscreen wiper arm with two spray lines, wiper device and method of manufacture
WO2012150166A1 (fr) * 2011-05-04 2012-11-08 Valeo Systèmes d'Essuyage Dispositif pour fournir un fluide de lavage à un bras d'essuie-glace
WO2013056821A1 (fr) * 2011-10-22 2013-04-25 Audi Ag Dispositif de chauffage pour au moins un composant de véhicule à moteur placé à l'extérieur du véhicule à moteur et véhicule à moteur
US20130157489A1 (en) * 2011-12-19 2013-06-20 Jean-Michel Jarasson Electrical and hydraulic coupling device for a screen-wash supply and/or distribution system
EP2626257A2 (fr) * 2012-02-01 2013-08-14 Integrated Wiper Technologies LLC Système de balais d'essuie-glace doté d'un circuit de dégivrage et d'une pompe d'évacuation
DE102014018372A1 (de) * 2013-12-13 2015-06-18 Voss Automotive Gmbh Konfektionierte beheizbare Medienleitung sowie Verfahren zu deren Herstellung

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