Wiper system for a LiDAR sensor

Abstract

The present invention relates to a wiper system (10) for a LiDAR sensor (200), comprising: a wiper lip (12) comprising an elastic material, wherein the wiper lip (12) has a longitudinal extension direction (14), wherein the wiper system has two webs (16), wherein the two webs (16) are configured to engage in two recesses (18) and the wiper lip (12) along the longitudinal extension direction (14), wherein the wiper system (10) has a limiting unit (20) configured to be pushed onto the wiper lip (12) along the longitudinal extension direction (14) in order to secure the two webs (16) to the wiper lip (12), wherein the wiper system (10) has a connecting unit (22) configured to form a force-locking and / or form-locking connection with the two webs (16), wherein the connecting unit (22) is arranged toto arrange the wiper system (10) on a cleaning system (100) for the LiDAR sensor (200).,

Description

Prior ArtThe present invention relates to a wiper system for a LiDAR sensor, a cleaning system for a LiDAR sensor, and a vehicle.At present, there are a large number of different solutions for cleaning sensor surfaces in the vehicle sector. As a result of the increasing number of sensor surfaces to be cleaned in the vehicle sector and the increased cleaning quality requirements, the need for innovative and robust methods for cleaning sensor surfaces is continually increasing.The steady weight reduction in the vehicle sector for reducing consumption and the increasing competition provides cost pressure, so that favorable and more efficient components for vehicles are more demanded.Disclosure of the InventionThe wiper system according to the invention for a LiDAR sensor having the features of claim 1 has the advantage over the known art that a wiper lip of the LiDAR sensor can be replaced by the delimiting unit and the connecting unit without tools or the like with little force exertion. A further advantage is that the load on the wiper system can be further reduced, since the wiper lip can be further deflected when an obstacle is present with the aid of the webs of the wiper system, in order to possibly overcome this obstacle. Thus, a material can be used for the wiper lip, which material has a long service life and at the same time the wiper lip can be deflected for its connection, so that in total the elasticity of the wiper lip can be reduced.This is achieved according to the invention in that the wiper system for a LiDAR sensor has a wiper lip which has an elastic material. Furthermore, the wiper lip has a direction of longitudinal extent. In addition, the wiper system has two webs, wherein the two webs are configured to engage in two recesses on the wiper lip along the direction of longitudinal extent, wherein the wiper system has a delimiting unit which is configured to be pushed onto the wiper lip along the direction of longitudinal extent in order to secure the two webs to the wiper lip, wherein the wiper system has a connecting unit which is configured to form a force-fit and / or form-fit connection with the two webs, wherein the connecting unit is configured to arrange the wiper system to a cleaning system for the LiDAR sensor.In other words, a wiper lip has two lateral recesses into which two webs can be introduced. The webs are held in the recesses, on the one hand with a delimiting unit which is plugged on via the ends along the longitudinal extension direction, and by the connecting unit which can fasten the wiper system to the cleaning system of the LiDAR sensor. The wiper lip is preferably made of a rubber-like material. Further preferably, the two webs, the delimiting unit and the connecting unit can be formed from a plastic, such as PA6. Thus, the webs can have a higher strength than the wiper lip.The dependent claims show preferred developments of the invention.The two webs preferably have two tapers, wherein the connecting unit is configured to suppress the connecting unit from slipping with respect to the wiper lip along the direction of longitudinal extent by engaging the connecting unit in the tapers.An advantage of this embodiment is that the wiper lip remains in the field of view of the sensor in order to be able to further increase the cleaning performance. In this case, in particular each web can have a taper which is arranged on the webs in particular opposite the direction of longitudinal extent. Further preferably, the connecting unit can have pin elements or the like which are configured to engage in the taper. Furthermore, the connecting unit forms a force-fit and / or form-fit connection with the web in the taper, in order thus to prevent slipping along the direction of longitudinal extent.Further preferably, the connecting unit has a U-shaped section, wherein the U-shaped section and the two webs are configured to provide the positive and / or non-positive connection.An advantage of this embodiment is that by means of the U-shaped section, securing of the connecting unit to the webs can be effected along two axes. Thus, slipping of the webs to the connecting unit can be prevented.Further preferably, the connecting unit has a phase which abuts the U-shaped section in order to assist the formation of the force-fit and / or form-fit connection.An advantage of this embodiment is that the mounting of the connecting unit on the webs can be further simplified.Preferably, a length of the two tapers and a length of the U-shaped portion are configured to define a degree of deflection of the wiper lip toward the connection unit when the wiper lip is displaced across the LiDAR sensor.An advantage of this embodiment is that when the wiper lip hits an obstacle which adheres to the field of view of the LiDAR sensor, the displacement is not interrupted due to the defined deflection between the wiper lip and the connecting unit, but the wiper lip can correspondingly deflect in order to overcome the obstacle. In this case, a degree of the deflection can be defined on the basis of the length of the two tapers or a length of the U-shaped section, since the longer the two lengths are, the smaller the deflection can be.Further preferably, the two webs each have a first hook element, wherein the delimiting unit has two second hook elements, wherein the two webs form a snap-hook connection between the two webs and the delimiting unit by means of the first hook elements and the second hook elements.An advantage of this embodiment is that a snap-hook connection can be made by the clamping unit being plugged onto the two webs and the wiper lip. Thus, the limiting unit is detachably mounted on the webs and the wiper lip in order to be able to replace them.Further preferably, the delimiting unit has a U-shaped profile, wherein the U-shaped profile is configured to guide at least one web in order to form the snap-hook connection.An advantage of this embodiment is that it reduces or prevents the first and second hook elements from becoming hooked to one another or to another component by the U-shaped profile. In this case, the delimiting unit can have a U-shaped profile on both sides of the displacement direction, in order to be able to guide the web.The delimiting unit preferably has two pins which are configured to engage in the two recesses in order to form a frictional connection between the wiper lip and the delimiting unit.An advantage of this embodiment is that, when the delimiting unit is plugged onto the wiper lip with the webs, a frictional connection is formed between the delimiting unit and the wiper lip by means of the pins in order to be able to prevent the delimiting unit from slipping off the wiper lip or the webs.Further preferably, the connecting unit has two cutouts, wherein a clip is arranged in each of the two cutouts, wherein the clip is configured to form a force-fit and / or form-fit connection with the cleaning system.An advantage of this embodiment is that, with the aid of simple plugging on, the wiper system can be arranged on the cleaning system of the LiDAR sensor. A further advantage is that, with the aid of the cutouts in which the clips are arranged, the wiper system does not contribute or apply to the overall height of the cleaning system.Further preferably, the clip has an opening width which is greater than a diameter of a fastening point of the clip.An advantage of this embodiment is that the opening width forms a certain guiding effect, in order to thus be able to fasten the wiper system to the cleaning system more easily.The clip preferably has an opening angle between 20° and 30°.An advantage of this embodiment is that a guiding effect can be improved with the aid of the opening angle in order to be able to fasten the wiper system to the cleaning system more easily.Preferably, the clip has two arms, wherein a tip width of the arms is smaller than a root width of the arms.A further advantage of this embodiment is that the guiding effect of the clip is further improved with the aid of the adapted tip width and foot width, in order thus to simplify the mounting of the wiper system on the cleaning system.Preferably, the tip width and the root width of the clip are configured to provide a resistance force between 3 and 20 N for mounting the wiper system.An advantage of this embodiment is that, starting from the point of overcoming this force, a click-in noise or the like of the wiper system can take place on the cleaning arm of the cleaning system, so that the assembler can check whether the wiper system has been successfully mounted.A further aspect of the invention relates to a cleaning system for a LiDAR sensor, which cleaning system has a wiper system as described above and below, wherein the cleaning system is configured to displace the wiper system over a field of view of the LiDAR sensor in order to clean the field of view.A further aspect of the invention relates to a vehicle which has a cleaning system as described above and below and / or a wiper system as described above and below.Brief Description of the DrawingsHereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings. In the drawing, the following is: FIGS. 1 to 9 show a wiper system according to one embodiment, FIG. 10 shows a cleaning system according to one embodiment, FIG. 11 illustrates a vehicle according to an embodiment.Embodiments of the InventionAll the same units, elements and / or systems are preferably provided with the same reference numerals in all the figures.FIG. 1 shows a wiper system 10 according to an embodiment. Preferably, the wiper system 10 for a LiDAR sensor 200 has a wiper lip 12 which is produced from an elastic material. Further preferably, the wiper lip 12 has a direction of longitudinal extent 14. The wiper system preferably has two webs 16, wherein the two webs 16 are configured to engage in two recesses 18 on the wiper lip 12 along the direction of longitudinal extent 14, wherein the wiper system 10 has a delimiting unit 20 which is configured to be pushed onto the wiper lip 12 along the direction of longitudinal extent 14 in order to secure the two webs 16 to the wiper lip 12, wherein the wiper system 10 has a connecting unit 22 which is configured to form a force-fit and / or form-fit connection with the two webs 16, wherein the connecting unit 22 is configured to arrange the wiper system 10 to a cleaning system 100 for the LiDAR sensor 200.FIG. 2 ashows a wiper system 10 according to an embodiment. FIG. 2 ashows a section through the wiper system 10 at a height of the connecting unit 22, Preferably, the wiper lip 12 is fastened in the connecting unit 22 by means of two webs 16 which engage in two recesses 18 of the wiper lip 12. Preferably, the connecting unit 22 has a U-shaped section 26, in particular on both sides of the wiper lip 12, in which the webs 16 engage. The webs 16 can thus form their positive and / or non-positive connection with the connecting unit 22 and a positive and / or non-positive connection of the wiper lip 12.FIG. 2 bshows a wiper system 10 according to an embodiment. The wiper system 10 has a similar configuration to the wiper system 10 of FIG. 2 a. As can be seen in FIG. 2 b, the two webs 16 of the wiper system 10 bear in two recesses 18 of the wiper lip 12. The connecting unit 22 is arranged on the two webs 16. Further preferably, the delimiting unit 20 can be pushed onto the wiper lip 12 and the webs along the longitudinal extent 16 in the displacement direction 14.FIG. 3 shows a wiper system 10 according to an embodiment. The wiper system 10 comprises a wiper lip 12 and two webs 16, which preferably have two tapers 24. The connecting unit 22 can engage in the tapers 24, in order to thus be able to form a form-fit and / or force-fit connection between the webs 16 and the connecting unit 22. Preferably, the two tapers 24 have a first length 30 and preferably the U-shaped portion 26 has a second length 32. In this case, the first length 30 and the second length 32 can be configured such that they define a degree of deflection of the wiper lip 12 toward the connecting unit 22.FIG. 4 shows an embodiment of the wiper system 10. the wiper system 10 has two webs 16, onto which the delimiting units 20 are plugged. In this case, the limiting units 20, which are plugged onto the webs 16 on both sides, have two pins 40, which can form a frictional connection between the webs 16 and the limiting unit 20. Preferably, the delimiting units 20 have been plugged onto the webs 16 along the displacement direction 14. Further preferably, the webs 16 have tapers 24, on which the connecting unit 22 can be arranged.FIG. 5 ashows a wiper system 10 according to an embodiment. The wiper system 10 comprises a wiper lip 12 which is arranged on a connecting unit 22 by means of webs 16 and recesses 18. As can be seen in FIG. 5 a, a housing 19 of the connecting unit 22 can be arranged, for example, in order to protect the wiper lip 12 from environmental influences.FIG. 5 bshows a wiper system 10 according to an embodiment. As shown in FIG. 5 a, the connecting unit 22 has a U-shaped section 26 for each web 16. A phase 28 can be arranged adjacent to the U-shaped section, in order thus to facilitate insertion of the web 16 into the U-shaped sections 26.FIG. 6 shows a wiper system 10 according to an embodiment. The wiper system 10 comprises a delimiting unit 20, wherein the delimiting unit 20 has a U-shaped profile 38 on both sides, in particular for each web 16. Further preferably, the delimiting unit has two pins 40 in order to be able to form a frictional connection with the recesses 18 of the wiper lip 12.FIG. 7 ashows an embodiment of the wiper system 10. the wiper system 10 has a wiper lip 12 which can be fastened to the connecting unit 22 by means of two webs 16 which are arranged in the recess 18. Further preferably, a delimiting unit 20 is pushed onto the wiper lip and / or the webs 16. Furthermore, pins 40 in the delimiting unit 20 can form a frictional connection with the wiper lip 12 by engaging in the recesses 18, in particular along the displacement direction of the extension direction 14.FIG. 7 bshows an embodiment of the wiper system 10. Preferably, each web 16 has a first hook element 34. The webs 16 can position the wiper lip 12 with respect to the delimiting unit 20. The delimiting unit 20 has a second hook element 36 for each web 16, in order to be able to form a snap-hook connection between the webs 16 and the delimiting unit 20. In this case, in particular the delimiting unit 20 can be pushed along the longitudinal extent direction 14 onto the webs 16 and the wiper lip 12 in order to be able to form the snap-hook connection.FIG. 8 shows an embodiment of the wiper system 10. the wiper system 10 comprises a connecting unit 22. Preferably, the connecting unit 22 has two cutouts 42, in each of which a clip 44 is arranged. Each clip 44 has an opening width 46 which is greater than a diameter of the fastening clip of the clip 44. Further preferably, each clip 44 has an opening angle 48, in particular between 20° and 30°, to a longitudinal direction of the clip element, in particular an arm 50 of the clip 44. Further preferably, the clip 44 has two arms 50, which have a tip width 52 of the arms and a root width 54 of the arms 50. The tip width 52 is preferably smaller than a foot width 54 of the arms 50. Further preferably, the tip width 52 of the clip 44 and the foot width 54 of the clip 44 are configured to form a resistance force for mounting the wiper system 10 between 3 and 20 N.FIG. 9 shows a wiper system 10 according to an embodiment. The wiper system 10 comprises a connecting unit 22 in this case. As can be seen in FIG. 9, the connecting unit 22 has a cutout 42 on both sides, on which a clip 44 is arranged. Each clip 44 has two arms 50. With the aid of the deflection of the arms 50, in particular the connecting unit 22 can be placed or fastened on the cleaning team 100.FIG. 10 shows a cleaning system 100 which has a wiper system 10 as described above and below.FIG. 11 shows a vehicle 300 according to an embodiment. The vehicle 300 preferably has a wiper system 10 as described above and below. The vehicle 300 further preferably has a cleaning system 100 for cleaning a LiDAR sensor 200. Furthermore, the vehicle 300 preferably has a LiDAR sensor 200.

Claims

Wiper system (10) for a LiDAR sensor (200), having: - a wiper lip (12) which has an elastic material, - the wiper lip (12) having a direction of longitudinal extent (14), - the wiper system having two webs (16), - the two webs (16) being configured to engage in two recesses (18) and the wiper lip (12) along the direction of longitudinal extent (14), - the wiper system (10) having a limiting unit (20) which is configured to be pushed onto the wiper lip (12) along the direction of longitudinal extent (14) in order to secure the two webs (16) to the wiper lip (12), - the wiper system (10) having a connecting unit (22) which is configured to form a force-fit and / or form-fit connection with the two webs (16), wherein the connecting unit (22) is configured to arrange the wiper system (10) to a cleaning system (100) for the LiDAR sensor (200).Wiper system (10) according to Claim 1, wherein the two webs (16) have two tapers (24), wherein the connection unit (22) is configured to suppress the connection unit (22) from slipping with respect to the wiper lip (12) along the direction of longitudinal extent (14) by the connection unit (22) engaging in the tapers (24).Wiper system (10) according to one of the preceding claims, wherein the connection unit (22) has a U-shaped section (26), wherein the U-shaped section (26) and the two webs (16) are configured to provide the form-fit and / or force-fit connection.Wiper system (10) according to Claim 3, wherein the connection unit (22) has a phase (28) which bears against the U-shaped section (26) in order to assist in forming the force-fit and / or form-fit connection.The wiper system (10) of any of claims 2 to 4, wherein a length (30) of the two tapers (24) and a length (32) of the U-shaped portion (26) are configured to define a degree of deflection of the wiper lip (12) toward the connection unit (22) when the wiper lip (12) is displaced across the LiDAR sensor (200).Wiper system (10) according to one of the preceding claims, wherein the two webs (16) each have a first hook element (34), wherein the delimiting unit (20) has two second hook elements (36), wherein the two webs (16) form a snap connection between the two webs (16) and the delimiting unit (20) by means of the first hook elements (34) and the second hook elements (36).Wiper system (10) according to Claim 6, wherein the delimiting unit (20) has a U-shaped profile (38), wherein the U-shaped profile (38) is configured to guide at least one web (16) in order to form the snap-hook connection.Wiper system (10) according to one of the preceding claims, wherein the delimiting unit (20) has two pins (40) which are configured to engage in the two recesses (18) in order to form a frictional connection between the wiper lip (12) and the delimiting unit (20).Wiper system (10) according to one of the preceding claims, wherein the connecting unit (22) has two cutouts (42), wherein a clip (44) is arranged in the two cutouts (42), wherein the clip (44) is configured to form a force-fit and / or form-fit connection with the cleaning system (100).The wiper system (10) of claim 9, wherein the clip (44) has an opening width (46) that is greater than a diameter of a location of attachment of the clip (44).Wiper system (10) according to one of Claims 9 and 10, wherein the clip (44) has an opening angle (48) of between 20° and 30°.The wiper system (10) of any of claims 9 to 11, wherein the clip (44) includes two arms (50), wherein a tip width (52) of the arms (50) is less than a root width (54) of the arms (50).The wiper system (10) of claim 12, wherein the tip width (52) of the clip (44) and the root width (54) of the clip (44) are configured to provide a resistance force for mounting the wiper system (10) between 3 and 20 N.Cleaning system (100) for a LiDAR sensor (200) comprising a wiper system according to one of the preceding claims, wherein the cleaning system (100) is configured to displace the wiper system (10) over a field of view (202) of the LiDAR sensor (200) in order to clean the field of view (202).Vehicle (300) comprising a cleaning system (100) according to claim 14 and / or a wiper system (10) according to one of claims 1 to 13.

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