EP4627242A1 - Magnetventileinheit, reinigungsvorrichtung und fahrzeug - Google Patents
Magnetventileinheit, reinigungsvorrichtung und fahrzeugInfo
- Publication number
- EP4627242A1 EP4627242A1 EP23817078.1A EP23817078A EP4627242A1 EP 4627242 A1 EP4627242 A1 EP 4627242A1 EP 23817078 A EP23817078 A EP 23817078A EP 4627242 A1 EP4627242 A1 EP 4627242A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solenoid valve
- valve unit
- supply line
- fluid
- housing
- 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
Links
Classifications
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/003—Housing formed from a plurality of the same valve elements
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0606—Multiple-way valves fluid passing through the solenoid coil
Definitions
- Solenoid valve unit cleaning device and vehicle
- the invention relates to a solenoid valve unit for distributing a pressurized fluid to individual cleaning points of a device, in particular a vehicle, a cleaning device with such a solenoid valve unit, in particular for a vehicle, and a vehicle with such a cleaning device.
- An object underlying the invention is to improve water distribution for device cleaning, in particular vehicle cleaning, in view of the increasing number of vehicle sensors.
- a solenoid valve unit is proposed for distributing a pressurized fluid to individual cleaning points or points to be cleaned on a device, in particular a vehicle.
- the solenoid valve unit has at least four solenoid valves, each of which has an electromagnet, which can each be fluidically connected to one of the cleaning points via an associated outlet, and a housing having at least one central supply line with at least one fluid inlet for providing the pressurized fluid in the supply line.
- the solenoid valves are joined to the housing transversely to the supply line.
- solenoid valve unit in such a way that two solenoid valves lying opposite one another and arranged transversely to the supply line, between which the supply line is located, form a modularly extended solenoid valve pair, the common housing section of which is extended either at one end or at both ends of the supply line by a housing section of another solenoid valve pair by means of a joint connection and/or material connection.
- Such a solenoid valve pair represents a simple basic unit which, in the sense of the smallest possible solenoid valve unit, provides the basis for a so-called modular system from which any number of solenoid valve pairs of this type can advantageously be expanded or assembled to form a correspondingly larger solenoid valve unit as required.
- the individual solenoid valves can also be joined to the associated or common housing section by means of a joint connection - for example in the form of the aforementioned bayonet connection and the like - and/or connected by a material connection.
- a cleaning point can be understood as a cleaning point assigned to a vehicle sensor. This cleaning point does not have to be part of the sensor itself, but can be arranged at a distance from the assigned sensor, for example a point on a windshield and the like. The cleaning point can also be part of a vehicle sensor, such as a cleaning point assigned to a camera. A cleaning point can also be another point on the vehicle that is not assigned to a vehicle sensor as such, for example another point on the windshield, a point on a headlight and the like.
- a fluid is understood to mean a liquid or cleaning fluid. In the simplest case, this is water, but advantageously an aqueous cleaning agent solution, ie water in combination with a cleaning agent additive.
- the cleaning agent solution can also advantageously contain a freezing agent or antifreeze, which as such lowers the freezing point of the cleaning agent solution.
- a fluid also includes air or ambient air, which is also suitable for cleaning the previously mentioned cleaning surfaces when pressurized.
- a fluid can also be understood as a mixture of the cleaning liquid described above, in the simplest case just water, and air or ambient air.
- Ambient air can be understood as the air in a vehicle interior, which is expediently filtered and possibly preheated air.
- a filter that is already installed in an HVAC system Heating, Ventilation and Air Conditioning
- An air filter provided for heating, ventilation, air conditioning technology or an air conditioning system can be used. The latter contributes to a reduction in costs.
- preheated vehicle interior air or warm air has the advantage that, when the outside temperature in the vehicle is cold, freezing of the cleaning fluid at the respective cleaning point is prevented, for example at a cleaning point that can be assigned to a sensor optics.
- quer transverse to the supply line means that the individual fluidic connections between the outlet openings of the supply line and the flow-through electromagnets are arranged relative to the Supply line may enclose or form an obtuse or acute angle, ie an angle greater or less than 90°, or may also represent an orthogonal arrangement, ie enclose or form an angle of 90°.
- an electromagnet assigned to one of the drains can be flowed through via an assigned drain opening of the supply line transversely to the supply line.
- This proposed fluid distribution mechanism simplifies a vehicle cleaning device or a vehicle cleaning system and thus reduces the associated costs because it eliminates the need for fluid feed pumps and separate valve units. Consequently, this also results in weight savings. And by eliminating the need for fluid feed pumps, the corresponding fluid pump control is also simplified.
- the saving of required device or system components also promotes a corresponding compactness of such a device or system, so that less installation space is required overall.
- the individual drain openings of the supply line are arranged coaxially to an associated through-line through which the fluid can flow through the electromagnet. This further promotes a direct or almost direct supply of the fluid to the respective drains across the supply line.
- the valve piston is made of a magnetic material, such as a plastic mixed with ferromagnetic particles or a magnetized stainless steel, etc.
- a plastic mixed with magnetic particles the closure section can be injection-molded or bonded to this plastic, or alternatively pressed.
- the solenoid valve unit has a central circuit board for contacting the individual electromagnets.
- a circuit board can advantageously be attached to one side or to a section of the solenoid valve unit, for example to the housing forming the supply line, using a joint and/or material connection in a space-saving manner.
- a bus-controlled central electronic control unit can be designed or arranged on the circuit board so that the individual solenoid valves can be controlled without the need for separate cables.
- the solenoid valve unit has at least one fluid delivery unit for providing the pressurized fluid.
- the fluid conveying unit can be a liquid conveying pump with at least one pump stage or a fluid conveying unit in the form of a so-called pump-compressor unit with at least one pump stage and at least one compressor stage, which conveys a liquid and/or air in a speed-controlled and/or speed-regulated manner.
- the solenoid valve unit has at least a first fluid conveying unit and a second fluid conveying unit of the type described above for providing the pressurized fluid.
- These fluid conveying units can be arranged fluidically in series and/or parallel to one another.
- solenoid valve unit of the type described above, wherein at least one of the solenoid valves is not fluidically connected to any of the cleaning points of the vehicle in order to reliably enable or ensure pressure equalization to the environment in the event of freezing of the fluid in the central supply line.
- a vehicle is understood to mean any type of vehicle that is powered by either an internal combustion engine and/or an electric motor, but in particular passenger cars and/or commercial vehicles. These are preferably semi-autonomous and in particular fully autonomous vehicles.
- Fig. 2 the solenoid valve unit shown in Fig. 1 in a second perspective view
- Fig. 4 a solenoid valve pair of the solenoid valve unit shown in Figs. 1 to 3 in a perspective view and
- Fig. 5 shows a solenoid valve of the solenoid valve unit shown in Figs. 1 to 3 in a sectional view.
- the proposed solenoid valve unit 2 is intended for a cleaning device of a vehicle and serves to supply individual cleaning points of the vehicle with a pressurized liquid or cleaning liquid.
- This solenoid valve unit 2 functions as a distributor, which distributes the liquid to the individual cleaning points via one of the illustrated processes Ai, A2, ..., A9, A10.
- the solenoid valve unit 2 has a housing 4 with an inlet Z, via which the liquid provided by a liquid feed pump or pump (not shown here) is fed to a central supply line 6 in the housing 4.
- a total of ten solenoid valves 8, 10, ... are shown in Fig. 1 - purely as an example - as components of this solenoid valve unit 2.
- a circuit board 12 is also provided on the housing 4 between the individual solenoid valves 8, 10, ... in order to save installation space, which circuit board extends over the entire solenoid valve unit 2 between the individual electromagnets EM1, EM2 ... EM9, EM of the respective solenoid valves 8, 10, ... and is connected to these electromagnets EM1, EM 2 ... EMg, EM is electrically contacted.
- the individual solenoid valves 8, 10, ... can be controlled individually via a central electronic control unit arranged on the circuit board 12, bypassing separate cables.
- Fig. 2 shows an example of a possible type of stationary fixing or securing of the individual solenoid valves 8, 10, ... relative to the housing 4, namely by means of individual clamps 14, which are each provided between two opposing solenoid valves 8, 10, ..., between which the housing 4 lies, and which secure or secure the solenoid valves 8, 10, ... relative to the housing 4.
- These clamps 14 engage in undercuts or recesses of associated housing sections, in particular plastic housing sections of the respective solenoid valves 8, 10, ..., so that the individual solenoid valves 8, 10, ... are reliably secured or secured relative to the housing 4.
- the location of the individual solenoid valves 8, 10, ... could also be reliably achieved by locally welding - or at least by locally bonding - the solenoid valves 8, 10, ... to the housing 4.
- Such a direct flow through the individual electromagnets EM1, EM2 ... EM9, EM10 is also promoted by the fact that the individual drain openings 7 are arranged coaxially to the associated through-line through the respective electromagnet EM1, EM2 ... EM9, EM10.
- the solenoid valve unit 2 illustrated in Figs. 1 to 3 also represents a fluid distribution mechanism without any fluid leakage within the housing 4.
- the valve pistons 18 with their spherical closure section 26 are indeed movable relative to the housing 4, 4g, but the closure sections 26 only form a gap to the associated housing section 4g when the associated valve piston 18 is in an open position, through which gap the pressurized fluid can flow. This means that there is no need for a fluid feed pump or fluid feed pumps, which as such must provide for fluid leakage.
- the proposed solenoid valve unit 2 thus contributes to energy savings.
- the solenoid valve unit 2 illustrated in Figs. 1 to 3 also represents a very compact and space-saving solution for a fluid distribution mechanism.
- a further advantage of this proposed solenoid valve unit 2 results from its modular design (see Fig. 4), which as such offers a high degree of flexibility.
- This joining connection between two joined housing sections 4g is designed, for example, in the form of a bayonet connection.
- the individual solenoid valves 8, 10, ... can also be joined or connected to the associated housing section 4g by means of such a bayonet connection and thus fixed relative to the housing section 4g or the housing 4.
- Both the joints between individual solenoid valves 8, 10, ... and the respective associated housing sections 4g as well as the joints between the individual housing sections 4g are designed to be sufficiently fluidically sealed by means of appropriate seals, for example in the form of O-rings.
- This proposed modularity enables a flexible use of a so-called modular system, from which - depending on the requirement or need - a solenoid valve unit 2 of any size in the sense of a liquid distribution unit can be assembled as required and at the same time cost-optimized.
- the electromagnets EM1, EM2 ... EM9, EM10 can each be flowed through via an internal valve piston 18 acting as a closure body with a through-line 22 (see Fig. 5).
- a helical spring 20 extends into this through-line 22, via which the valve piston 18 is held against a associated drain opening 7 of the supply line 6 is prestressed and closes it in a fluid-tight manner.
- This through-line 22 branches or forks towards a closure section 26 - of the valve piston 18 - in the form of a ball into at least two line sections 23, 25 around the closure section 26.
- This closure section or this ball 26 forms these line sections 23, 25 with associated plastic housing sections of the respective solenoid valve 8, 10, ... and with associated plastic housing sections of the respective common housing section 4g.
- the individual valve pistons 18 are advantageously made of a plastic with magnetic particles, such as ferromagnetic magnetic particles, which is integrally connected or molded with the respective ball 26.
- valve piston 18 can also be made, for example, from a ferromagnetic metal or from a stainless, magnetized steel and can be joined and/or materially connected to the ball 26 or to an alternative closure section which has a rotational body section which is at least partially convex, concave and/or conical in shape for closing the associated drain opening 7.
- the associated drain opening 7 of the supply line 6 can be reduced to a minimum.
- a closure surface of the valve piston 18 which is pressurized with the liquid from the supply line 6 is limited to a Minimum.
- Fig. 5 illustrates the solenoid valve 8 with the electromagnet EM1, which comprises a coil body 16 with a wire or coil winding made of, for example, copper, and a wire winding or coil carrier 17 made of plastic, through which the wire winding is accommodated.
- the wire winding carrier 17 is molded with the wire winding.
- a first wire or coil end 24 and a second wire or coil end 26 extend through the plastic of the wire winding carrier 17 and, for example, to the circuit board 12, with which the wire ends 24, 26 are contacted.
- each of the electromagnets EM1, EM2 ... EM9, EM10 shown in Figs. 1 to 3 can be equipped with its own plug socket, via which these wire ends can be contacted with a corresponding plug.
- the electromagnet EM1 also has a metallic return pot 30, made of iron or steel, for example, to which the coil body 16 is joined.
- the return pot 30 comprises a first, central and bush-like pot section 32, which forms a through-line 38 to the outlet Ai and thus the said through-line through the electromagnet EM1, a second pot section 34 adjoining the first pot section 32 and a third pot section 36 adjoining the second pot section 34, which is joined to the coil body 16.
- the said helical spring 20 is mounted on a first spring seat.
- valve piston 18 is pre-tensioned against the associated drain opening 7 of the supply line 6 in a non-energized state of the electromagnet EMi and closes this in a fluid-tight manner.
- the arrangement of the return pot 30 and the coil body 16 illustrated in Fig. 5 is also partially injection-molded with a plastic which, on the one hand, forms a plastic section that can be joined to the common housing section 4g and through which the valve piston 18 is introduced into the solenoid valve 8 up to just before the bush-like pot section 32, as well as a plastic section for the outlet Ai of the solenoid valve 8.
- This plastic overmolding not only connects the metallic pot sections forming the return pot 30 to the coil body 16, but also protects these metallic sections or components from corrosion.
- an undercut or recess 28 for interaction with the previously described clamp 14 and an undercut or recess 29 for receiving a sealing ring, for example in the form of an O-ring, can be seen.
- the gap S between the valve piston 18 and the pot section 32 limits the possible stroke of the valve piston 18.
- this gap S advantageously ensures or enables so-called icing compensation or so-called icing protection of the solenoid valve unit 2.
- icing-related movement of the liquid through the valve piston 8 or beyond the valve piston 8 is made possible in order to prevent icing-related damage to the respective solenoid valve 8 and/or the supply line 6.
- the proposed solenoid valve unit 2 represents, with respect to each of the
- Solenoid valves 8, 10, ... a corresponding compensation or pressure equalization possibility so that the individual solenoid valves 8, 10, ... can counteract icing-related damage to the proposed solenoid valve unit 2.
- the solenoid valve unit 2 illustrated in Fig. 4 in the sense of the smallest possible basic unit of the solenoid valve unit 2 shown in Figs. 1 to 3 shows a pair of solenoid valves, the solenoid valves 8, 10, ... of which are arranged opposite one another at an angle of 180° and coaxially to one another.
- This arrangement enables the two solenoid valves 8, 10, ... to be easily attached to the common housing section 4g, for example by means of the previously mentioned clamp 14.
- the solenoid valves 8, 10, ... can also be arranged in such a way relative to one another and opposite one another and joined to the common housing section 4g that they enclose an obtuse angle of greater than 90° and less than 180° or an acute angle of less than 90° with one another, without thereby losing the previously described advantages of a modular system.
- This makes the proposed solenoid valve unit 2 even more flexible to design, depending on the installation space conditions.
- At least one housing section 4g of one of the solenoid valve pairs shown in Figs. 1 to 3 can have a so-called partition wall section, which divides the central supply line 6 shown in Fig. 3 into at least two areas.
- the housing 4 has at least a first supply line or a first supply line section and a second supply line or a second supply line section, each with an associated inlet.
- the proposed solenoid valve unit 2 represents a fluid distribution mechanism or a type of fluid distributor with flow pressure losses or hydraulic losses reduced to a minimum.
- This proposed solenoid valve unit 2 thus promotes high performance of a vehicle cleaning device, which as such has such a solenoid valve unit 2. Due to the high fluid pressures that can be used, fluid consumption of the vehicle cleaning device can advantageously be reduced to a minimum. As a result, the fluid feed pumps used essentially only have to compensate for the smallest losses of the solenoid valve unit 2.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022212982.2A DE102022212982A1 (de) | 2022-12-01 | 2022-12-01 | Magnetventileinheit, Reinigungsvorrichtung und Fahrzeug |
| PCT/EP2023/083582 WO2024115585A1 (de) | 2022-12-01 | 2023-11-29 | Magnetventileinheit, reinigungsvorrichtung und fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4627242A1 true EP4627242A1 (de) | 2025-10-08 |
Family
ID=89068667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23817078.1A Pending EP4627242A1 (de) | 2022-12-01 | 2023-11-29 | Magnetventileinheit, reinigungsvorrichtung und fahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4627242A1 (de) |
| KR (1) | KR20250093403A (de) |
| CN (1) | CN120303502A (de) |
| DE (1) | DE102022212982A1 (de) |
| WO (1) | WO2024115585A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008060342C5 (de) | 2008-12-03 | 2016-12-01 | Festo Ag & Co. Kg | Ventilanordnung |
| EP2461046B1 (de) | 2010-12-03 | 2017-11-01 | Schukra Gerätebau GmbH | Ventilanordnung und pneumatische Sitzeinstellungsvorrichtung |
| US9016305B2 (en) * | 2011-05-05 | 2015-04-28 | Norgren Gt Development Corporation | Configurable actuation-orientation valve |
| DE102015000115B4 (de) | 2015-01-07 | 2017-10-05 | Faurecia Autositze Gmbh | Ventilblock mit aneinander gereihten Verbindungsmodulen und Kraftfahrzeugsitz |
| DE202015000540U1 (de) | 2015-01-27 | 2015-04-10 | Kendrion Kuhnke Automotive GmbH | Pneumatische Steuer- und Messvorrichtung sowie Sitzkomfortsystem |
| DE102015219207B3 (de) * | 2015-10-05 | 2017-02-09 | Conti Temic Microelectronic Gmbh | Druckverteiler für ein Kraftfahrzeug |
| US20200317160A1 (en) * | 2019-04-03 | 2020-10-08 | Dlhbowles, Inc. | Liquid distribution assembly for a sensor cleaning system and method |
| FR3095627B1 (fr) * | 2019-04-30 | 2021-10-15 | Valeo Systemes Dessuyage | Bloc d’électrovannes pour installation de nettoyage de capteurs d’un véhicule |
| CN214823154U (zh) | 2021-04-01 | 2021-11-23 | 宁波恒帅股份有限公司 | 车用清洗泵及液体智能分配单元以及车用清洗装置 |
-
2022
- 2022-12-01 DE DE102022212982.2A patent/DE102022212982A1/de active Pending
-
2023
- 2023-11-29 WO PCT/EP2023/083582 patent/WO2024115585A1/de not_active Ceased
- 2023-11-29 EP EP23817078.1A patent/EP4627242A1/de active Pending
- 2023-11-29 KR KR1020257017426A patent/KR20250093403A/ko active Pending
- 2023-11-29 CN CN202380082808.6A patent/CN120303502A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN120303502A (zh) | 2025-07-11 |
| WO2024115585A1 (de) | 2024-06-06 |
| KR20250093403A (ko) | 2025-06-24 |
| DE102022212982A1 (de) | 2024-06-06 |
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