LU102118B1 - Cleaning system for vehicles - Google Patents

Abstract

Cleaning system for vehicles with a pump (3) by means of which a cleaning fluid is conveyed onto a surface to be cleaned. The pump (3) can be mounted on a structural component of the vehicle or on a storage container (5) for the cleaning fluid by means of a holder (1). According to the invention, the holder (1) comprises a first retaining ring (10) for receiving the pump (3) and a second retaining ring (20) with at least one mounting flange (40) for mounting the holder (1) on a structural component of the vehicle or on a storage tank (5) for the cleaning fluid, the first retaining ring (10) and the second retaining ring (20) being held substantially concentrically and spaced apart from one another by at least two webs (30) made of an elastic material.

Description

1 ; Vehicle cleaning system.

technical field .

The present invention relates generally to a cleaning system for | Vehicles e.g. for front and rear window washing systems, headlight cleaning | tion systems, camera and sensor cleaning systems and for sensors for car | matic driver assistance systems such as LIDARs. The present invention relates in particular | in particular a cleaning system in which a cleaning fluid is pumped by means of a pump | is conveyed to a surface to be cleaned. | Background of the Invention |

[0002] Cleaning systems for vehicle components are well known. | Washer water tanks with electric water pumps for windscreen and | Headlight cleaning, for example, is part of the standard equipment in vehicle | genes of all kinds. In these cleaning systems, a washing water, given | if with one or more additives, stored in a wash water tank | chert and, if necessary, by means of one or more pumps from the washing water | tank to one or more washing nozzles and conveyed to the bottle to be cleaned. che sprayed. |

The pumps generate a high-frequency noise when actuated | transmitted and amplified through the structural components of the vehicle. | Since the actuation usually takes place at the request of the driver, a certain noise emission was previously accepted when the function was briefly actuated. |

[0004] Future cleaning systems face new challenges in this regard demands: || - as vehicles are increasingly equipped with assistance systems, are | Additional areas and sensors such as cameras for driver assistance systems | and sensors to display the automatic driving functions. | On the one hand, this leads to an increasing number and performance of the pumps | and on the other hand to a more frequent operation of the pumps; | - actuation is increasingly automatic, i.e. without conscious intervention | of the driver, so that a noise is perceived as disturbing by the driver, |

LU102118 | - With the increasing use of hybrid or electric vehicles, there are no | background noise, in particular the operating noise of the combustion engine. tors, so that the vibrations generated by the pump are perceived by the vehicle occupants to be significantly louder and therefore more annoying. ; |

It is therefore desirable to transfer the operating noise from | reduce the pumps to the structural components of the vehicle. Off | For this reason, damping measures in the area of the water pumps are required known, which consist of foam casings of the pump or with solid rubber. pump nozzles and screw-on points provided with elements. This | In practice, however, damping measures are not sufficient to to effectively reduce the noise of the pumps. . Object of the Invention |

There is therefore a need for a cleaning system for a vehicle. which enables a more effective reduction of the noise of the pump. . General description of the invention ’

[0007] Accordingly, the present invention relates to a cleaning system for | Vehicles with a pump by means of which a cleaning fluid is applied to a | area is funded. The pump is attached to a structural | part of the vehicle or mounted on a storage tank for the cleaning fluid | bar. According to the invention, the holder comprises a first retaining ring for receiving | mounting of the pump and a second retaining ring with at least one mounting | flange for mounting the bracket to a structural part of the vehicle or | on a storage container for the cleaning fluid, wherein the first retaining ring and | the second retaining ring by at least two webs made of an elastic material | maintained substantially concentric with and spaced apart from each other | will. |

Due to the special design of the bracket, the first retaining ring | holding the pump and the second retaining ring with the mounting flange through | the webs are made of a preferably soft, elastic material so that they are separated from each other | spaced apart that between the two rings in normal operation no | contact can arise. The at least one mounting flange on the second |

Retaining ring is therefore mecha- | nically decoupled by the webs made of soft elastic material, so that in particular | Special high frequencies of the noise generated by the operation of the pump : are effectively dampened. This mechanical decoupling reduces | the transmission of the interference frequencies is essential so that an effective acoustic | Decoupling of the pump from the structural component of the vehicle or the storage 'tank is ensured. |

In a preferred embodiment, the first retaining ring and / or the | second retaining ring and/or the at least two webs made of a plastic material, | in particular made of an elastomer or rubber. The elastic properties ; properties of these materials can be easily and inexpensively by appropriate | Corresponding manufacturing processes known per se to the respective conditions for | Adjust the decoupling of the interference frequencies. |

In a particularly inexpensive variant, the first retaining ring; second retaining ring and the at least two webs made in one piece. The different | where components of the bracket can, for example, be extruded or made of | several different materials or material mixtures coextruded | will. In order to meet the possibly different requirements of the retaining rings |} and the webs, the material of the at least two webs can, for example, have a | have lower hardness than the material of the first and / or the second half | tering Such a variant of the bracket can be easily in a Coextrusionsver- | drive. |

In order to optimally absorb bearing forces of the pump, the at least two webs are substantially uniform in the circumferential direction over the circumference of the | bracket distributed. This means that if you have a bracket with two bars that have the | two webs are preferably spaced apart/arranged by 180° from one another in the circumferential direction. If, on the other hand, the holder has three webs, these are preferred | circumferentially spaced by 120°, |

In a preferred embodiment of the invention, the first retaining ring | designed such that the first retaining ring, the pump form-fitting and / or | positively encloses. In this case, the pump can be securely mounted in the retaining ring without any additional assembly means.

4 |

It should be noted that the at least one mounting flange preferably extends radially outward from the outer surface of the second retaining ring. pro | two mounting flanges are preferably provided, which are diametrically opposed, for example ral oppositely extend radially outwards. However, the expert will | recognize that the arrangement of the mounting flange or flanges essentially depends on | the location of the bracket on the structural member or storage tank | dependent and adjusted accordingly. The mounting flanges can, for example, be designed as snap contacts or screw-on points or the like; be formed. |

The at least one mounting flange is preferably on the outside | the second retaining ring arranged such that the at least one assembly | flange is offset from the at least two webs in the circumferential direction. | Due to the staggered arrangement of the mounting flange(s), the | Transmission path of the vibrations from the pump via the first retaining ring, | over the webs and over the part of the second retaining ring from the webs to the / respective mounting flange so that the longest and softest possible transmission | path for vibrations is created. |

In a particularly preferred variant of this embodiment, the | Bracket two webs and the second retaining ring two mounting flanges, the 'two webs are spaced apart in the circumferential direction by 180 ° | and wherein the two mounting flanges are arranged such that the two Mon- | Day flanges are circumferentially spaced 180° from each other and approximately 90° | are offset from the webs. |

[0016] It should be noted that the invention in one embodiment relates to a washing water system for vehicles, having a washing water tank and a pump for delivering a washing liquid stored in the washing water tank. The pump can be mounted on the washing water tank or on a structural part of the vehicle by means of a bracket. The bracket comprises a first retaining ring for receiving the pump and a second retaining ring with at least one mounting flange for mounting the bracket on a structural component of the vehicle or on a storage container for the cleaning fluid, the first retaining ring and the second retaining ring being made of one by at least two webs elastic material held substantially concentric to each other and spaced apart. will. : Short description of the figures |

Further details and advantages of the invention are from the following. Description of an embodiment based on the accompanying figures ersicht | lich, showing: É Fig.1 components of a washing water system for vehicles; | 2 shows a plan view in the axial direction of a holding element, FIG. 3 shows a perspective view of the holding element of FIG Description of an embodiment |

Figure 1 shows components of an embodiment of the invention as a washing. water system for vehicles. The wash water system includes a wash water | sertank (5) and a pump (3) for promoting in the washing water tank (5) | stored washer fluid. The pump (3) is in the embodiment shown | tion by means of a bracket (1) on the washing water tank (5) mountable. .

The holder (1) comprises a first retaining ring (10) for receiving the. Pump (3) and a second retaining ring (20) with two mounting flanges (40) (see; Fig. 2 and 3). By means of the mounting flanges (40), the holder (1) can be attached to the corresponding | Appropriate assembly means mounted in a recess of the washing water tank (5) | (see Fig. 1). The mounting flanges (40) are, for example, as a snap | contacts or screwing points or the like. |

The first retaining ring (10) and the second retaining ring (20) are connected by two webs | (30) from a soft, elastic material essentially concentrically | kept nander and spaced apart. The first retaining ring (10), the second | Retaining ring (20) and the at least two webs (30) are made in one piece, so that | the holder (1) is a one-piece element. |

As shown in FIGS. 2 and 3, the two webs (30) are preferably divided in the circumferential direction essentially uniformly over the circumference of the holder Splits. In the present case, the two webs (30) are 180° in the circumferential direction; arranged spaced apart. Furthermore, from FIGS. 2 and 3 |

LU102118 | P-CEBI-010/LU 6 | seen that the two mounting flanges (40) are arranged such that the | the two mounting flanges are spaced apart by 180° in the circumferential direction. and are offset by about 90° relative to the webs.

The staggered arrangement of the mounting flange(s) increases the transmission path © of the vibrations from the pump via the first retaining ring, via the webs | and over the part of the second retaining ring from the webs to the respective Mon-. day flange so that the longest and softest possible transmission path for vibration . arises.

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Claims (9)

P-CEBI-010/LU 7 protection claims 1. Cleaning system for vehicles, comprising a pump (3) by means of which a cleaning fluid is conveyed to a surface to be cleaned, the pump (3) being attached to a structural component of the vehicle or to a storage container (5) for the cleaning fluid can be mounted, characterized in that the holder (1) has a first retaining ring (10) for receiving the pump (3) and a second retaining ring (20) with at least one mounting flange (40) for mounting the holder (1) on a structural component of the vehicle or on a storage container (5) for the cleaning fluid, the first retaining ring (10) and the second retaining ring (20) being held essentially concentrically to one another and at a distance from one another by at least two webs (30) made of an elastic material . 2. Cleaning system for vehicles according to claim 1, characterized in that the first retaining ring (10) and/or the second retaining ring (20) and/or the at least two webs (30) are made of a plastic material, in particular an elastomer. 3. Cleaning system for vehicles according to claim 1 or 2, characterized in that the first retaining ring (10), the second retaining ring (20) and the at least two webs (30) are made in one piece. 4. cleaning system for vehicles according to any one of the preceding claims, characterized in that the material of the at least two webs (30) has a lower hardness than the material of the first (10) and / or the second (20) retaining ring. 5. Cleaning system for vehicles according to one of the preceding claims, characterized in that the at least two webs (30) are distributed substantially uniformly over the circumference of the holder (1) in the circumferential direction. 6. cleaning system for vehicles according to any one of the preceding claims, characterized in that the first retaining ring (10) is designed such that the first retaining ring (10) encloses the pump (3) positively and / or non-positively. 8 | 7. cleaning system for vehicles according to any one of the preceding claims, | characterized in that the at least one mounting flange (40) on the | Outside of the second retaining ring (20) is arranged such that the at least | at least one mounting flange (40) opposite the at least two webs (30) in | Circumferentially offset. | 8. cleaning system for vehicles according to any one of the preceding claims, | wherein the holder (1) comprises two webs (30) and wherein the second retaining ring | (20) has two mounting flanges (40), the two webs (30) being spaced apart from one another by 180° in the circumferential/circumferential direction and | the two mounting flanges (40) are arranged such that the two mounting | flanged (40) circumferentially spaced 180° from each other and | are arranged offset by about 90° with respect to the webs (30). | 9. Washing water system for vehicles, with a washing water tank (5) and a pump (3) for promoting a water stored in the washing water tank (5) | Washing liquid, wherein the pump (3) by means of a holder (1) on the | washing water tank (5) or can be mounted on a structural part of the vehicle, | characterized in that the holder (1) has a first retaining ring (10) for | Recording the pump (3) and a second retaining ring (20) with at least one | A mounting flange (40) for mounting the bracket (1) on a structural | component of the vehicle or on a washing water tank (5), wherein the | first retaining ring (10) and the second retaining ring (20) by at least two webs | (30) of resilient material are held substantially concentric with and spaced apart from each other.