Wiper unit for lidar sensor unit
By designing a wiper unit that uses articulation elements and connecting elements, flexible adaptation with multiple different models of lidar sensors is achieved, and the problems of high manufacturing costs and poor adaptability in the prior art are solved, which significantly reduces manufacturing costs.
Patent Information
- Application Number
- CN202411500487.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-26
- Filing Date
- 2024-10-25
- Publication Date
- 2025-04-29
AI Technical Summary
The prior art is difficult to effectively adapt to different models of lidar sensors, resulting in high manufacturing costs and poor flexibility.
A wiper unit is designed, adopting a combined structure of a first hinge element, a first connecting element and a second hinge element, and achieving multi-angle adaptation through material locking connection.
It significantly reduces manufacturing costs, improves the adaptability of wiper units and lidar sensors, and can adapt to multiple different models of lidar sensors.
Smart Images
Figure CN119898305A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a wiper unit for a lidar sensor unit and to a vehicle. Background Art
[0002] Currently, there are several different solutions for cleaning LiDAR sensor surfaces in the automotive sector. Due to the increasing number of LiDAR sensors and the increasing quality or purity requirements, the need for innovative and robust methods is increasing.
[0003] The cost pressures caused by the continuous weight reduction in the automotive industry to reduce consumption and the increasing competition have led to a greater demand for cheaper and more efficient automotive components. Summary of the invention
[0004] The wiper unit according to the invention for a lidar sensor unit having the features of claim 1 has the following advantages over known wiper units: Due to its design, the wiper unit can be adapted to different lidar sensor units significantly more easily. This allows the production costs to be significantly reduced. It is further preferred that a plurality of different angles can also be formed with the aid of the wiper unit.
[0005] According to the invention, this is achieved in that the wiper unit for the lidar sensor unit has a first joint element, a first connecting element and a second joint element. The first joint element can be arranged on a drive of the lidar sensor unit, the wiper lip can be arranged on the second joint element, the first connecting element is provided for spacing the first joint element and the second joint element apart from each other and connecting them, the second joint element being fastened to the first connecting element by a material-locked connection according to a predetermined distance between the first joint element and the second joint element.
[0006] In other words, by adapting the position of the second articulated element, the wiper unit can be adapted to a plurality of different lidar sensor units. In this case, the adaptation can be achieved by an offset of the first connecting element and can be achieved by the position of the second articulated element on the first connecting element. In this case, the predetermined distance can be formed according to the corresponding lidar sensor unit on which the wiper unit can be mounted. Further preferably, the first connecting element is provided for adjusting the distance between the first articulated element and the second articulated element and also for transmitting the force acting on the first articulated element to the second articulated element. In this case, for example, the first connecting element can be squeezed or extruded and cut off for a corresponding portion of the predetermined distance. In this case, a material-locked connection can be provided between the second articulated element and the first connecting element, in particular by laser welding, bonding or ultrasonic welding or the like.
[0007] The dependent claims indicate preferred developments of the invention.
[0008] Preferably, the second joint element has at least one integrally bonded element, wherein the integrally bonded element is provided to at least partially form an integrally bonded connection.
[0009] The advantage of this embodiment is that the integrally bonded element can be adapted accordingly depending on the joining method used to form the integrally bonded connection. For example, in the case of ultrasonic welding, the integrally bonded element can be designed in such a way that a simple joining can be achieved.
[0010] Further preferably, the integrally bonded element has a substantially triangular cross section.
[0011] The advantage of this embodiment is that the ultrasonic welding or joining is simplified by the triangular cross section.
[0012] It is further preferred that the first connecting element and / or the second housing element is at least partially formed from a transparent material, so that a cohesive connection can be produced by laser beam welding using a cohesive bonding element.
[0013] The advantage of this embodiment is that if the parts of the element around the integrally bonded connection are at least partially transparent, the connection can be designed significantly more simply or no repositioning or the like has to be performed during the production process.
[0014] Further preferably, the first connecting element has a first side and a second side, wherein the second side faces away from the wiper lip, wherein the second hinge element is arranged at the second side, wherein the first connecting element has two gaps, wherein the second hinge element has two pins, which are arranged to engage in the two gaps in order to fasten the second hinge element to the first connecting element.
[0015] The advantage of this embodiment is that the second joint element can be mounted on the first connecting element by simple plug-in or the like via pins and recesses.
[0016] Further preferably, two pins are provided for fastening the wiper lip to the wiper unit.
[0017] This embodiment has the advantage that further processing steps or the like can be omitted, since the pin fastens the second joint element to the first connecting element and the wiper lip to the wiper unit.
[0018] Preferably, the first connecting element has a first side and a second side, wherein the second side faces away from the wiper lip, wherein the second joint element is arranged on the first side of the first connecting element.
[0019] The advantage of this embodiment is that the first connecting element can be produced from a variety of different materials, for example plastic and / or sheet metal.
[0020] Further preferably, the first joint element and the first connecting element are designed integrally.
[0021] The advantages of this embodiment are that the manufacturing costs can be further reduced and the force of the first joint element can be better transmitted to the first connecting element.
[0022] Preferably, the first joint element is formed with a guide for the second joint element on the first side, wherein the second joint element is arranged displaceably in the guide, so that the predetermined distance can be adjusted.
[0023] This embodiment has the advantage that the production costs can be further reduced, since the first joint element can be used for a plurality of different lidar sensor units, since the second joint element can be moved into the correct position in the guide before the integrally bonded connection is formed.
[0024] For example, the first joint element has a longitudinal extension along which the second joint element can be mounted flexibly, since the second joint element can be adjusted into different positions by means of the guide.
[0025] A further aspect of the invention relates to a vehicle having a wiper system as described above and below. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the accompanying drawings:
[0027] Figures 1a to 3c shows a wiper unit according to one embodiment,
[0028] Figure 4 A vehicle according to one embodiment is shown. DETAILED DESCRIPTION
[0029] Preferably, all identical components, elements and / or units are provided with the same reference numerals in all figures.
[0030] Figure 1aA wiper unit 10 according to an embodiment is shown. The wiper unit 10 is provided for being arranged on a lidar sensor unit 100. The wiper unit 10 preferably has a first joint element 12, a first connecting element 14 and a second joint element 16. Preferably, the first joint element 12 can be arranged in particular on a drive of the lidar sensor unit 100. Further preferably, the second joint element is provided for receiving a wiper lip 18 or arranging the wiper lip 18 on the second joint element 16. In addition, the first connecting element 14 is preferably provided for spacing the first joint element 12 and the second joint element 16 apart from each other and for connecting them. Further preferably, the second joint element 16 is fastened to the first connecting element 14 by a material-locked connection according to a predetermined distance 20 between the first joint element 12 and the second joint element 16. Further preferably, the first connecting element 14 has at least two recesses 28. Here, the pin 30 can in particular engage in the recess 28 in order to arrange the second joint element 16 on the first connecting element 14. Further preferably, in addition to the pin 30 , the second joint element 16 can also be fastened to the first connecting element 40 by a material-locking connection, in particular at a predetermined distance 20 .
[0031] Figure 1b FIG. 1 shows a wiper unit 10 according to one specific embodiment. Figure 1b , the second joint element 16 is shown. Preferably, the second joint element 16 has, in particular, two pins 30, which are provided for arranging the second joint element 16 on the first connecting element 14. Further preferably, the pins 30 are provided for also receiving the wiper lip 18 or for fastening it to the wiper unit 10. Further preferably, the second joint element 16 has a plurality of integrally bonded elements 22, which are provided for forming at least a part of the integrally bonded connection between the second joint element 16 and the first connecting element 14.
[0032] Figure 2a 1 shows a wiper unit 10 according to one embodiment. In this case, the wiper unit 10 comprises a first joint element 12, a first connecting element 14 and a second joint element 16. Figure 2a As shown, the first joint element 12 and the first connecting element 14 are designed in one piece. Preferably, the connecting element 14 has a first side 24 and a second side 26. The second joint element 16 is arranged on the first side 24 facing the wiper lip 18.
[0033] Figure 2b An embodiment of a wiper unit 10 is shown. Preferably, the wiper unit 10 comprises a second joint element 16. Preferably, the second joint element 16 has a plurality of integrally bonded elements 22. Preferably, the second joint element 16 comprises contact points 31 in order to be able to arrange them in the wiper lip 18.
[0034] Figure 3a A wiper unit 10 according to an embodiment is shown. Preferably, the wiper unit 10 comprises a first joint element 12, a first connecting element 14 and a second joint element 16. Preferably, the first connecting element 14 has a first side 24 facing the wiper lip 18 and a second side 26 facing away from the wiper lip 18. Preferably, the second joint element 16 is arranged on the first side 24. Here, the first connecting element 14 preferably has a guide 32 on the first side 24. Preferably, the second joint element 16 is arranged in the guide 32 in a manner that it can move along a displacement axis 34.
[0035] Figure 3b 1 shows an embodiment of a wiper unit 10. Preferably, the wiper unit 10 comprises a first articulated element 12, a first connecting element 14 and a second articulated element 16. Figure 3b 3 shows the second joint element 16 at the maximum deflection 36 in the guide 32 .
[0036] Figure 3c An embodiment of a wiper unit 10 is shown. Preferably, the wiper unit 10 comprises a first joint element 12, a first connecting element 14 and a second joint element 16. The second joint element 16 is arranged in a guide 32 of the first connecting element 14. Figure 3c The second joint element 16 is shown at a minimum distance 38 between the first joint element 12 and the second joint element 16 .
[0037] Figure 4 A vehicle 300 according to an embodiment is shown. Preferably, the vehicle 300 comprises a wiper unit 10 as described above and below. Further preferably, the vehicle 300 has a lidar sensor unit 100. Preferably, the wiper unit 10 can be used to clean the lidar sensor unit 100.
Claims
1. A wiper unit (10) for a laser radar sensor unit (200), the wiper unit comprising: - a first articulated element (12), - a first connecting element (14), a second joint element (16), wherein the first joint element (12) can be arranged on a drive device in the lidar sensor unit (200), wherein The wiper lip (18) can be arranged on the second joint element (16), wherein the first connecting element (14) is provided for spacing the first joint element (12) and the second joint element (16) from each other and connecting them, wherein the second joint element (16) is fastened to the first connecting element (14) by a material-locked connection according to a predetermined distance (20) between the first joint element (12) and the second joint element (16).
2. The wiper unit (10) according to claim 1, wherein: The second joint element (16) has at least one integrally bonded element (22), wherein the integrally bonded element (22) is provided to at least partially form an integrally bonded connection.
3. The wiper unit (10) according to claim 2, wherein: The integrally bonded element (22) has a substantially triangular cross section.
4. The wiper unit (10) according to any one of claims 2 to 3, wherein: The first connecting element (14) and / or the second housing element (16) are at least partially formed from a laser-transparent material, so that a cohesive connection can be produced by laser beam welding using the cohesive element (22).
5. The wiper unit (10) according to any one of the preceding claims, wherein: The first connecting element (14) has a first side (24) and a second side (26), wherein the second side (24) faces away from the wiper lip (18), wherein the second hinge element (16) is arranged on the second side (26), wherein the first connecting element (14) has two recesses (28), wherein the second hinge element (16) has two pins (30) which are provided to engage in the two recesses (28) in order to fix the second hinge element (16) to the first connecting element (14).
6. The wiper unit (10) according to claim 5, wherein: Two pins (30) are provided for fixing the wiper lip (18) to the wiper unit (10).
7. The wiper unit (10) according to any one of claims 1 to 4, wherein: The first connecting element (14) has a first side (24) and a second side (26), wherein the second side (26) faces away from the wiper lip (18), wherein the second joint element (16) is arranged on the first side (24) of the first connecting element (14).
8. The wiper unit (10) according to claim 7, wherein: The first joint element (12) and the first connecting element (14) are integrally formed.
9. The wiper unit (10) according to any one of claims 7 to 8, wherein: The first connecting element (14) is configured with a guide portion (32) for a second joint element (16) on a first side portion (24), wherein the second joint element (16) is movably arranged in the guide portion (32) so that a predetermined distance (20) can be adjusted.
10. A vehicle (300) having a wiper unit (10) according to any one of the preceding claims.