EP4065430A1 - Dispositif d'essuie-glace, élément de raccordement de fluide et essuie-glace - Google Patents

Dispositif d'essuie-glace, élément de raccordement de fluide et essuie-glace

Info

Publication number
EP4065430A1
EP4065430A1 EP20803481.9A EP20803481A EP4065430A1 EP 4065430 A1 EP4065430 A1 EP 4065430A1 EP 20803481 A EP20803481 A EP 20803481A EP 4065430 A1 EP4065430 A1 EP 4065430A1
Authority
EP
European Patent Office
Prior art keywords
fluid
fluid connection
connection element
supply line
wiper
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.)
Pending
Application number
EP20803481.9A
Other languages
German (de)
English (en)
Inventor
Ilija Pjescic
Tanja Bosnic
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4065430A1 publication Critical patent/EP4065430A1/fr
Pending legal-status Critical Current

Links

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
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3415—Wiper arms; Mountings therefor with means for supplying cleaning fluid to windscreen cleaners, e.g. washers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical
    • 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

Definitions

  • the at least one fluid connection element with the at least one fluid supply line forms at least one check valve, in particular a Dunlop valve.
  • a “wiper device” should preferably be understood to mean at least a part, preferably a subassembly, of a windshield wiper.
  • the wiper device can preferably also comprise the entire windshield wiper, in particular with a wiper blade.
  • the wiper device is intended for use on a vehicle.
  • the wiper device is preferably provided, in particular as part of the windshield wiper, for cleaning a surface, preferably a window, on a vehicle.
  • the wiper device is preferably coupled to a vehicle, preferably a wiper arm of a vehicle, for cleaning a vehicle window.
  • “Provided” should preferably be understood to mean specially set up, specially designed and / or specially equipped.
  • the fluid supply unit preferably comprises a fluid supply line which extends along a longitudinal axis of the wiper arm over at least 80%, preferably over at least 90%, of the wiper arm, preferably for a fluid supply of a wiper blade.
  • a “longitudinal axis” of an object should preferably be understood to mean an axis which runs parallel to a longest edge of a smallest imaginary cuboid which just completely surrounds the object.
  • the fluid supply line is preferably designed as at least one hose.
  • the fluid supply line can be designed as at least two hoses running parallel to one another.
  • the fluid supply line can be designed as a plurality of fluidically connected hoses.
  • the fluid supply line is preferably formed from an elastically deformable material.
  • At least one end piece of the at least one fluid supply line is preferably formed from an elastically deformable material.
  • the at least one fluid supply line can be formed from a plastic comprising an elastomer or a natural material such as rubber.
  • the wiper device can comprise a wiper arm adapter.
  • the wiper arm adapter is preferably arranged on the wiper arm.
  • the wiper device can comprise a wiper blade adapter.
  • the wiper blade adapter is preferably arranged on the wiper blade.
  • the wiper blade is preferably connected to the wiper arm via the wiper blade adapter and / or the wiper arm adapter.
  • the at least one fluid connection element preferably forms a static section of the at least one check valve.
  • the at least one fluid supply line preferably forms an elastically deflectable section of the at least one check valve.
  • the at least one check valve is preferably formed exclusively by the at least one fluid supply line and the at least one fluid connection element.
  • the at least one check valve is preferably designed as a Dunlop valve.
  • the configuration of the wiper device according to the invention makes it possible to achieve an advantageously cost-effective return valve.
  • an advantageously space-saving return valve can be achieved.
  • a return valve that is advantageously easy to manufacture and / or assemble can be used can be achieved.
  • a return valve which is advantageously simple to equip with a heating element can be achieved.
  • the wiper device can advantageously be put together from existing component shapes, in particular component designs. It can be achieved that the fluid supply line advantageously itself forms the function of the return valve.
  • “In one piece” should in particular be understood to be at least cohesively connected, for example by a welding process, an adhesive process, an injection molding process and / or another process that appears sensible to a person skilled in the art, and / or advantageously formed in one piece, such as se by production from a cast and / or by production in a one-component or multi-component injection molding process and advantageously from a single blank.
  • An advantageously simple assembly of the fluid supply line unit, in particular the fluid supply line, on the fluid connection element can be achieved.
  • the at least one fluid connection element delimits an angled fluid channel.
  • the fluid channel is preferably angled by 90 °.
  • the fluid channel can be angled at 45 °, 60 °, 75 °, 80 ° or 85 °.
  • the fluid channel delimited by the at least one fluid connection element preferably comprises a main fluid channel which extends parallel to a longitudinal axis of the fluid connection element through the fluid connection element.
  • the fluid channel delimited by the at least one fluid connection element preferably comprises at least one secondary fluid channel which extends perpendicular to the main fluid channel.
  • the at least one secondary fluid channel is preferably designed as an opening of the main fluid channel on one side of the fluid connection element.
  • the fluid supply line which is designed in particular as a hose, is preferably plugged onto the fluid connection element via the at least one secondary fluid channel.
  • the fluid supply line preferably delimits the at least one secondary fluid channel in an assembled state in the direction of a transverse axis of the fluid connection element.
  • a “transverse axis” of an object should preferably be understood to mean an axis which runs perpendicular to a longitudinal axis of the object.
  • the at least one secondary fluid channel is preferably arranged at one end of the fluid connection element.
  • the main fluid channel is preferably designed to be fluidically sealed, in particular closed, in the direction of the longitudinal axis of the fluid connection element.
  • Advantageous fluid pressure conditions for forming a check valve can be achieved. In particular, it can be achieved that the fluid supply line can form an elastically steerable part of a return valve.
  • the at least one fluid supply line forms a flow area for the at least one fluid connection element by an at least partial elastic deflection in at least one operating state.
  • the fluid supply line is preferably at least partially elastically deflectable in the direction of the transverse axis of the fluid connection element.
  • the fluid supply line can preferably be elastically deflected at least partially in the direction of a transverse axis of the fluid supply line, in particular perpendicular to a fluid conducting direction of the fluid supply line.
  • the at least one fluid supply line forms a flow-around flow through an at least partial elastic deflection in the operating state. rich for the at least one fluid connection element from one end of the fluid connection element to the secondary fluid channel.
  • the wiper device comprises at least one heating element which extends at least partially through the at least one fluid connection element.
  • the at least one heating element is preferably designed at least partially and preferably for the most part as at least one heating wire, preferably with a thermally conductive sheath.
  • the at least one heating element preferably extends along the longitudinal axis of the fluid connection element through the entire fluid connection element.
  • the at least one heating element preferably extends at least partially along the longitudinal axis of the fluid supply line through the at least one fluid supply line, in particular at an end of the fluid supply line connected to the fluid connection element.
  • An advantageously heatable and / or defrostable return valve can be achieved.
  • an advantageously heatable connection between the fluid supply line and the fluid connection element can be achieved.
  • the fluid supply unit have at least one further fluid supply line, and the at least one fluid connection element is designed as a double-sided fluid connection extension which fluidly connects the fluid supply line and the further fluid supply line.
  • the further fluid supply line is preferably designed at least partially and preferably for the most part as a hose.
  • One end of the fluid connection element is preferably connected to the fluid supply line or the further fluid supply line.
  • the at least one fluid supply line preferably forms a connection with the fluid connection element Check valve from and / or the at least one further Fluidmakersslei device with the fluid connection element.
  • the fluid connection element is preferably designed as an insert for integration into the fluid supply unit.
  • the wiper device comprises at least one, in particular the already mentioned wiper arm adapter, which is spaced from the at least one fluid connection element.
  • the wiper arm adapter is preferably arranged at one end of the wiper arm and / or connected to the wiper arm at the end of the wiper arm.
  • the fluid connection element is preferably integrated into the fluid supply unit, in particular arranged between the fluid supply line and the further fluid supply line. An arrangement of the return valve that is advantageously independent of the wiper arm adapter can be achieved.
  • the wiper device comprises at least one wiper blade adapter which is spaced apart from the at least one fluid connection element.
  • An arrangement of the return valve that is advantageously independent of the wiper blade adapter can be achieved.
  • FIG. 1 shows a windshield wiper according to the invention with a wiper device according to the invention in a schematic representation
  • FIG. 1 shows a windshield wiper 50a.
  • the windshield wiper 50a comprises a wiper device 10a.
  • the windshield wiper 50a comprises a wiper blade 52a, in particular for wiping a windshield on a vehicle.
  • the wiper device 10a comprises a wiper arm 12a.
  • the wiper arm 12a has a wiper arm adapter 14a.
  • the wiper arm adapter 14a comprises an adapter cover element 66a.
  • the wiper device 10a comprises a fluid supply unit 16a.
  • the fluid supply line unit 16a is provided for at least some sections of fluid to be transported along the wiper arm 12a.
  • the fluid supply unit 16a has a fluid supply line 18a.
  • the wiper device 10a comprises a fluid connection element 20a.
  • the fluid supply line 18a is fluidically connected to the fluid connection element 20a (see. Fig. 2a, 2b).
  • Figures 2a and 2b show that the fluid connection element 20a with the fluid supply line 18a forms a check valve 22a.
  • the fluid connection element 20a forms with the fluid supply line 18a in particular a Dunlop valve.
  • the fluid connection element 20a is at least partially designed as a fluid connection extension 24a.
  • the fluid connection extension 24a forms the check valve 22a, in particular a Dunlop valve, with the one fluid supply line 18a.
  • the fluid connection element 20a, in particular the fluid connection extension 24a is net angeord in a vicinity of the wiper arm adapter 14a.
  • the fluid connection element 20a, in particular the fluid connection extension 24a is partially arranged at a maximum distance of 10 cm from the wiper adapter 14a.
  • the fluid connection element 20a in particular the fluid connection extension 24a, is formed in one piece with the wiper arm adapter 14a.
  • the fluid connection element 20a in particular the fluid connection extension 24a, can be formed in one piece with the wiper blade adapter 54a.
  • the fluid connection element 20a delimits an angled fluid channel 26a.
  • the fluid channel 26a is formed by a main fluid channel 28a and a secondary fluid channel 30a.
  • the main fluid channel 28a extends through the fluid connection element 20a, in particular through the fluid connection extension 24a, along the longitudinal axis 34a of the fluid connection element 20a, in particular the fluid connection extension 24a.
  • the main fluid channel 28a is fluidically sealed, in particular closed, in the direction of the longitudinal axis 34a of the fluid connection element 20a, in particular the fluid connection extension 24a.
  • the fluid connection element 20a has an inner wall 32a. The inner wall 32a of the fluid connection element 20a, in particular of the fluid connection extension 24a, delimits the main fluid channel 28a in the direction of the longitudinal axis 34a of the fluid connection element 20a, in particular of the fluid connection extension 24a.
  • the secondary fluid channel 30a is designed as an opening of the main fluid channel 28a on one side of the fluid connection element 20a, in particular fluid connection extensions 24a.
  • the secondary fluid channel 30a is limited by the fluid connection element 20a at a 90 ° angle to the main fluid channel 28a.
  • the auxiliary fluid channel 30a is provided to a fluid line perpendicular to the longitudinal axis 34a of the fluid connection element 20a.
  • the auxiliary fluid channel 30a is arranged at a distance from the inner wall 32a.
  • the secondary fluid channel 30a is arranged closer to the wiper arm adapter 14a than the inner wall 32a.
  • FIG. 2a shows the wiper device 10a in particular in an assembly state.
  • the fluid supply line 18a is plugged onto the fluid connection element 20a, in particular the fluid connection extension 24a.
  • the fluid supply line 18a rests at least partially along the longitudinal axis 34a on the fluid connection element 20a, in particular on the fluid connection extension 24a, in particular over a sealing depth 40a of an insertion depth 36a, preferably of at least 2 cm.
  • the fluid supply line 18a limits the fluid channel 26a of the fluid connection element 20a, in particular of the fluid connection extension 24a.
  • the fluid supply line 18a limits the Ne benfluidkanal 30a of the fluid connection element 20a, in particular the fluid connection extension 24a, in a direction perpendicular to the longitudinal axis 34a of the Fluid connection element 20a, in particular of the fluid connection extension 24a.
  • FIG. 2b shows the wiper device 10a in particular in an operating state.
  • the fluid supply line 18a is plugged onto the fluid connection element 20a, in particular the fluid connection extension 24a.
  • the fluid supply line 18a rests, in particular due to fluid pressure, at least partially along the longitudinal axis 34a on the fluid connection element 20a, in particular on the fluid connection extension 24a, in particular over a sealing depth 40a of an insertion depth 36a, preferably of at least 0.1 cm.
  • the sealing depth 40a is shorter than in the assembled state (cf. FIGS. 2a and 2b).
  • the fluid channel 26a of the fluid connection element 20a in particular of the fluid connection extension 24a, is unlimited by the fluid supply line 18a.
  • a fluid can flow from the fluid supply line 18a through the secondary fluid channel 30a into the main fluid channel 28a of the fluid connection element 20a, in particular of the fluid connection extension 24a.
  • the fluid supply line 18a forms a flow area 42a for the fluid connection element 20a by an at least partial elastic deflection in the operating state (cf. FIG. 2b).
  • the flow area 42a extends along the insertion depth 36a up to at least the secondary fluid channel 30a between the fluid supply line 18a and the fluid connection element 20a.
  • the wiper device 10a comprises a heating element 38a.
  • the heating element 38a extends at least partially through the fluid connection element 20a, in particular through the fluid connection extension 24a.
  • the heating element 38a extends along the longitudinal axis 34a completely through the fluid connection element 20a, in particular through the fluid connection extension 24a.
  • the heating element 38a extends along the longitudinal axis 34a through the inner wall 32a of the fluid connection element 20a, in particular the fluid connection extension 24a.
  • the heating element 38a is connected to the inner wall 32a in a fluidically sealed manner.
  • a further embodiment of the invention is ge shows.
  • the wiper device 10b comprises a wiper arm adapter 14b (not shown).
  • the wiper device 10b comprises at least one wiper blade adapter 54b (not shown).
  • the wiper device 10b comprises a fluid connection element 20b.
  • the wiper arm adapter 14b is spaced apart from the at least one fluid connecting element 20b.
  • the wiper blade adapter 54b is spaced apart from the at least one fluid connection element 20b.
  • the fluid connection element 20b has a longitudinal axis 64b.
  • a fluid supply unit 16b has a fluid supply line 18b.
  • the fluid supply line unit 16b has a further fluid supply line 48b.
  • the fluid connection element 20b delimits the angled fluid channel 26b.
  • the fluid channel 26b is formed by a main fluid channel 28b and a secondary fluid channel 30b.
  • the secondary fluid channel 30b is designed as an opening of the main fluid channel 28b on one side of the fluid connection element 20b, in particular the double-sided fluid connection extension 44b.
  • the secondary fluid channel 30b is delimited by the fluid connection element 20b at a 90 ° angle to the main fluid channel 28b.
  • the secondary fluid channel 30b is provided to a fluid line perpendicular to the longitudinal axis 64b of the double-sided fluid connection extension 44b.
  • the secondary fluid channel 30b is arranged at a distance from the inner wall 32b.
  • the secondary fluid channel 30b is arranged on the valve side 46b of the double-sided fluid connection extension 44b.
  • the inner wall 32b is arranged on the valve side 46b of the double-sided fluid connection extension 44b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)

Abstract

L'invention concerne un dispositif d'essuie-glace (10a ; 10b) comprenant au moins un élément de raccordement de fluide (20a ; 20b) et comprenant au moins une unité d'alimentation en fluide (16a ; 16b) qui est prévue pour au moins des sections de transport de fluide le long d'un bras d'essuie-glace, et qui présente au moins une conduite d'alimentation en fluide qui est en communication de fluide avec au moins un élément de raccordement de fluide. Selon l'invention, le ou les éléments de raccordement de fluide forment au moins un clapet de non-retour (22a ; 22b), en particulier une vanne de dunlop, conjointement avec la ou les conduites d'alimentation en fluide (18a. 18b).
EP20803481.9A 2019-11-30 2020-11-05 Dispositif d'essuie-glace, élément de raccordement de fluide et essuie-glace Pending EP4065430A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019218659.9A DE102019218659A1 (de) 2019-11-30 2019-11-30 Wischervorrichtung, Fluidverbindungselement und Scheibenwischer
PCT/EP2020/081061 WO2021104824A1 (fr) 2019-11-30 2020-11-05 Dispositif d'essuie-glace, élément de raccordement de fluide et essuie-glace

Publications (1)

Publication Number Publication Date
EP4065430A1 true EP4065430A1 (fr) 2022-10-05

Family

ID=73172673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20803481.9A Pending EP4065430A1 (fr) 2019-11-30 2020-11-05 Dispositif d'essuie-glace, élément de raccordement de fluide et essuie-glace

Country Status (3)

Country Link
EP (1) EP4065430A1 (fr)
DE (1) DE102019218659A1 (fr)
WO (1) WO2021104824A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808590U1 (de) * 1998-05-06 1998-08-27 Kromberg & Schubert, 42389 Wuppertal Wischwasserzuleitungs-Vorrichtung, insbesondere beheizbare Wischwasserzuleitungs-Vorrichtung für Scheibenwaschanlagen bei Fahrzeugen
FR2781743B1 (fr) * 1998-07-31 2000-09-15 Journee Paul Sa Dispositif de projection de liquide de lavage et essuie-glace portant un tel dispositif
DE19906197B4 (de) * 1999-02-15 2006-09-21 Robert Bosch Gmbh Scheibenwischer mit Spritzdüse und Rückschlagventil
DE19912975A1 (de) * 1999-03-23 2000-09-28 Bosch Gmbh Robert Spritzdüse für eine Scheibenwaschanlage
DE19950738A1 (de) * 1999-10-21 2001-05-10 Bosch Gmbh Robert Zuführvorrichtung zur Zuführung einer Flüssigkeit auf ein Ziel, zum Beispiel eine Scheibe eines Fahrzeugs
DE102008051584A1 (de) * 2008-10-14 2010-04-15 Valeo Systèmes d'Essuyage Waschanlage für Fahrzeugscheiben sowie Rückschlagventil für eine solche Anlage

Also Published As

Publication number Publication date
WO2021104824A1 (fr) 2021-06-03
DE102019218659A1 (de) 2021-06-02

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