Automobile laser radar hidden windscreen wiper

Abstract

The invention discloses an automobile laser radar hidden windscreen wiper and relates to the technical field of automobile radar accessories, the automobile laser radar hidden windscreen wiper comprises a wiper arm body and a moving module, the moving module comprises a moving guide rail, a first sliding block and a driving assembly, the upper side of the first sliding block is connected with a first guide block matched with the moving guide rail, and the outer side of the first sliding block is rotationally connected with a rotating block; the driving assembly drives the first sliding block to move along the moving guide rail, and the scraping arm body is connected to the rotating block. A rotating shaft of the rotating block is horizontally arranged and drives the scraping arm body to rotate upwards to stretch out or rotate downwards to be hidden, and the moving guide rail is arranged in the length direction of the moving module and guides the stretching-out scraping arm body to reciprocate for scraping. The self-cleaning function of the automobile laser radar in the driving process can be improved, hiding in the daily state is achieved, and the effect of prolonging the service life of the automobile laser radar is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile radar accessories, in particular to a hidden wiper for automobile laser radar. BACKGROUND

[0002] Laser radar is a radar system that uses laser beams to detect the position, speed and other characteristic quantities of target objects. It is a detection method that combines laser technology and photoelectric detection technology. Laser radar has high resolution, strong anti-active interference capability, good detection performance, small size and light weight, and is widely used in automatic driving, traffic communication, unmanned aerial vehicles, intelligent robots, resource exploration and other fields.

[0003] When driving at high speed, the "lens" (optical window) of the radar is easily contaminated by external pollutants such as insects or rainwater, causing the emitted laser beam to be blocked or scattered, and the received signal to become chaotic. Therefore, it is necessary to add a cleaning function to the automobile laser radar to improve its stability and safety. SUMMARY

[0004] The purpose of the present application is to provide a hidden wiper for automobile laser radar, which can improve the self-cleaning function of the automobile laser radar during driving and achieve hiddenness in daily use, thereby prolonging its service life.

[0005] The above technical purpose of the present application is achieved by the following technical scheme: A hidden wiper for automobile laser radar, comprising a wiper arm body and a moving module, the moving module comprising a moving guide rail, a first sliding block and a driving assembly, the first sliding block being connected to a first guide block adapted to the moving guide rail on the upper side and being rotatably connected to a rotating block on the outer side, the driving assembly driving the first sliding block to move along the moving guide rail, and the wiper arm body being connected to the rotating block; the rotating shaft of the rotating block is horizontally arranged to drive the wiper arm body to rotate upwardly and extend or rotate downwardly and hide, the moving guide rail is arranged along the length direction of the moving module, and the wiper arm body is reciprocally moved to wipe after being extended.

[0006] Further, the moving guide rail is in a curved shape and is adapted to the horizontal section of the radar window arc surface.

[0007] Further, the wiper arm body comprises a wiper blade on the inner side, and the wiper blade is adapted to the vertical section of the radar window arc surface.

[0008] Further, the driving assembly comprises a second sliding block, the second sliding block linearly slides along the length direction of the moving module, the first sliding block is slidably connected to the second sliding block, and the sliding direction is arranged along the width of the moving module.

[0009] Further, the driving assembly further comprises a third sliding block, a sliding block guide is formed on the third sliding block, a second guide block matched with the sliding block guide is connected to the rotating block, the sliding block guide comprises an inclined line segment, and relative movement between the rotating block and the inclined line segment drives the rotating block to rotate.

[0010] Further, the driving assembly comprises a linear screw, the third sliding block is threadedly connected to the linear screw, a locking piece is arranged between the third sliding block and the second sliding block, the second sliding block is locked to slide with the third sliding block through the locking piece, and the second sliding block is unlocked to move relative to the third sliding block through the locking piece.

[0011] Further, the locking piece comprises a locking block, the locking block is slidably connected to the second sliding block / third sliding block at the upper end, and the lower end of the locking block is downwardly inserted into the third sliding block / second sliding block.

[0012] Further, the driving assembly comprises an unlocking block, an inclined surface is arranged on the upper side of the unlocking block, the inclined surface is arranged towards the locking block, the locking block is gradually pushed upwards through the inclined surface after passing through the unlocking block, and the locking between the second sliding block and the third sliding block is released.

[0013] Further, the moving module further comprises an upper cover plate, the upper cover plate is opened and closed through hinging or sliding, and the wiper arm body is stretched out of the upper cover plate or stored below the upper cover plate.

[0014] Further, the upper cover plate is slidably connected to the moving module in the width direction, a push rod is connected to the third sliding block, the corresponding end of the upper cover plate is an inclined surface, the sliding block guide further comprises a horizontal segment communicated with the upper end of the inclined line segment, when the second guide block slides in the horizontal segment, the third sliding block drives the end inclined surface of the upper cover plate to slide and open through the push rod.

[0015] In summary, the present application has the following advantages: The present application designs a wiper specifically for an external laser radar, carries a micro wiper device, and has a cleaning logic similar to a windshield wiper, but adopts a wiper arm hidden structure, can vertically flip the wiper arm, and stretches out the upper cover plate to hide the wiper arm, so that the wiper assembly (upper cover plate) and the body curve are seamlessly integrated, and the visual effect is simple and beautiful. The independent micro wiper blade head performs a cleaning action, can effectively remove external pollutants such as insect corpses and rainwater, ensures that the radar detection performance is not disturbed, significantly improves the reliability and stability under bad weather conditions, and has a wiper arm hidden structure, and the upper cover plate and the wiper arm are designed in linkage, and can also meet the IP67 waterproof and dustproof requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole structure schematic view of the automobile laser radar hidden wiper of the present application; Figure 2This is a schematic diagram of the movable guide rail part in a hidden windshield wiper with automotive lidar according to the present invention. Figure 3 This is a schematic diagram of the rotation of the wiper arm body in a hidden automotive lidar wiper according to the present invention. Figure 4 This is a schematic diagram of the working process of a concealed automotive lidar wiper according to the present invention; Figure 5 This is a schematic diagram of the installed automotive lidar concealed windshield wiper according to the present invention; Figure 6 This is a schematic diagram of the third slider part in a hidden windshield wiper with a laser radar for automobiles according to the present invention. Figure 7 This is a schematic diagram of the locking block part in a hidden windshield wiper with a laser radar for automobiles according to the present invention. Figure 8 This is a schematic diagram of the unlocking block portion in a concealed automotive lidar wiper according to the present invention.

[0017] In the diagram, 1. Scraper arm body; 2. Moving module; 21. Moving guide rail; 3. First slider; 31. First guide block; 4. Rotating block; 41. Second guide block; 5. Second slider; 6. Third slider; 61. Diagonal segment; 62. Horizontal segment; 63. Push rod; 7. Linear lead screw; 8. Locking block; 81. Unlocking block; 9. Top cover plate. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. These embodiments do not constitute a limitation of the present invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0019] A type of car lidar-based hidden windshield wiper, such as Figures 1 to 3 As shown, the device includes a scraper arm body 1 and a moving module 2. The moving module 2 includes a module housing. A moving guide rail 21 is provided in the upper side plate of the module housing. A first slider 3 and a driving component are connected inside the module housing. A first guide block 31 adapted to the moving guide rail 21 is connected to the upper side of the first slider 3, and a rotating block 4 is rotatably connected to the outer side. The first guide block 31 is confined within the moving guide rail 21. The driving component drives the first slider 3 to move along the moving guide rail 21. The scraper arm body 1 is connected to the rotating block 4, realizing the driven movement of the scraper arm body 1 according to a preset trajectory and the up and down rotation for storage (rotating upward to extend vertically and rotating downward to store horizontally). In some embodiments, the moving module 2 further comprises an upper cover plate 9 connected to the upper end of the module housing. The upper cover plate 9 can be opened and closed by hinging or sliding, allowing the wiper arm body 1 to extend out of or be stored below the upper cover plate 9. It can be designed as any door structure that can be opened and closed electrically, or as a hinged form that can be opened and closed automatically by the pushing force of the wiper arm body 1 and its own weight, to better cooperate with the CAS surface of the vehicle body through the upper cover plate 9 and hide the internal structure of the wiper.

[0020] As shown in Figure 3 and Figure 4 , the rotation shaft of the rotating block 4 is horizontally arranged, allowing the wiper arm body 1 to rotate upward to extend out or rotate downward to hide. The moving guide rail 21 is arranged along the length direction of the moving module 2, guiding the reciprocating movement of the extended wiper arm body 1 for wiping and brushing; Specifically, as shown in Figure 2 and Figure 5 , in this embodiment, the moving guide rail 21 is curved and matches the horizontal section of the radar window arc surface. The wiper arm body 1 includes an inner blade, which is an elastic blade made of rubber or the like. In some embodiments, it can also be designed as a certain curve to match the vertical section of the radar window arc surface, to adapt to the radar window arc surface and to be able to be attached by the elasticity of the wiper arm body 1 and / or the blade, or to be elastically attached to the radar window arc surface by a spring or other structure. After the wiper arm body 1 extends outwards, the rubber blade on the inner side of the wiper arm body 1 is flush with the radar window arc surface of the vehicle body, and a roller or other structure can be added to the outer end of the wiper arm body 1.

[0021] As shown in Figure 6 , the driving assembly includes a second sliding block 5 that slides linearly along the length direction of the moving module 2 through a linear guide rail or the like. The first sliding block 3 is connected to the second sliding block 5 (in this embodiment, a T-shaped slot is formed on the upper side of the second sliding block 5, and the first sliding block 3 is a corresponding T-shaped block, allowing the first sliding block 3 to slide linearly relative to the second sliding block 5), and the sliding direction is arranged along the width of the moving module 2. The driving assembly further includes a third sliding block 6 and a linear lead screw 7. The third sliding block 6 is threadedly connected to the linear lead screw 7, which is driven to rotate by a motor, driving the third sliding block 6 to move linearly along the guide rail or guide rod or the like. The outer side of the third sliding block 6 is integrally connected to a side plate, which has a sliding block guide rail formed thereon. The outer side of the rotating block 4 is connected to a second guide block 41 that matches the sliding block guide rail (in this embodiment, the rotation shaft of the rotating block 4 is located between the wiper arm body 1 and the second guide block 41). The sliding block guide rail includes an inclined linear segment 61. The relative movement between the rotating block 4 and the inclined linear segment 61 drives the rotating block 4 to rotate. When the inclined linear segment 61 slides outward, it pushes the second guide block 41 outward, causing the wiper arm body 1 at the other end to rotate downward to the horizontal position. The rotating shaft position of the rotating block 4 can also be provided with a torsional spring, which makes the rotating block 4 have a tendency to rotate to vertical, helping to drive the scraper arm body 1 to reset upward to vertical.

[0022] As shown in Figure 6 and Figure 7 In order to avoid the third slider 6 and the second slider 5 needing to be driven by two groups of lead screws respectively, a locking piece is arranged between the third slider 6 and the second slider 5, the second slider 5 is locked to follow the third slider 6 to slide through the locking piece, and the second slider 5 is moved relative to the third slider 6 by unlocking the locking piece; The locking piece includes a locking block 8, the upper end of the locking block 8 is connected to the third slider 6 to slide up and down, the top of the locking block 8 can be limited to the lower point by a limiting block or the like, and the locking block 8 can also be driven by a spring to stably lock downward, after the lower end of the locking block 8 moves downward to the lower point, the lower end is inserted into the second slider 5, realizing the movement of the second slider 5 and the third slider 6 together, so that the third slider 6 drives the second slider 5 to move under the drive of the straight lead screw 7, to complete the cleaning work of the scraper arm body 1; As shown in Figure 8 An unlocking block 81 is fixed in the module shell, an inclined surface is formed on the upper side of the unlocking block 81, and the inclined surface is arranged towards the locking block 8 (the end of the second slider 5 close to the third slider 6 is connected with an L-shaped block or a U-shaped block, which is used for the half of the inner side of the locking block 8, for example, the inner side is inserted downward, to limit the mutual separation of the second slider 5 and the third slider 6, and at this time, the second slider 5 and the third slider 6 are abutted together left and right, and the other half of the locking block 8, for example, the outer side corresponds to the position of the unlocking block 81, is pushed upward to unlock by the unlocking block 81, and after leaving the unlocking block 81, is reset by the weight or a reset spring or the like), the locking block 8 is gradually pushed upward by the inclined surface after passing through the unlocking block 81, to release the locking between the second slider 5 and the third slider 6; The inner end of the module shell or the inner side of the unlocking block 81 can also be connected with a limiting block, to limit the continuous forward movement of the second slider 5 after the unlocking block 81 is unlocked, to stably realize the separation between the third slider 6 and the second slider 5 after unlocking; in some embodiments, the above-mentioned limiting block can be replaced or additionally provided as a spring connected in the unlocking block 81, and a corresponding limiting groove is formed at the corresponding position of the second slider 5, to limit the continuous forward movement of the second slider 5 after the unlocking block 81 is unlocked, and when the third slider 6 moves reversely and pushes the second slider 5, the limiting is released by the elasticity of the spring.

[0023] In this embodiment, the upper cover plate 9 is connected to the moving module 2 to slide along the width direction, the third slider 6 is connected with a push rod 63, and the corresponding end of the upper cover plate 9 is an inclined surface, the inclined surface makes the outer side shorter than the inner side (a slanted rod parallel to the inclined surface can be further connected to the outer side of the inclined surface to form a slanted groove, the push rod moves to one side of the inclined plate to push the upper cover plate 1 to close to the outer side, and moves to one side of the inclined surface to push the upper cover plate 1 to open to the inner side), The slider guide rail further comprises a horizontal segment 62 connected to the upper end of the oblique segment 61, the horizontal segment 62 is located at the inner end of the oblique segment 61, and an obtuse angle is formed between the horizontal segment 62 and the oblique segment 61; the push rod 63 pushes the end inclined surface of the upper cover plate 9 to make it slide to open a gap, and the wiper arm body 1 is extended upward, and the inner side of the upper cover plate 9 and the module shell are further connected with a reset spring, which pushes the upper cover plate 9 outward to reset, and the wiper arm body 1 is retracted downward to close (a plurality of guide rods are connected along the width of the module shell, the guide rods are inserted into the upper cover plate 9, and the guide rods guide the linear sliding of the upper cover plate 9, and the reset spring is sleeved on the guide rod to realize the reset).

[0024] After the work is completed and unlocked, the third slider 6 moves away from the second slider 5 alone, the second guide block 41 first slides along the oblique segment 61 to realize the storage of the wiper arm body 1, and then the second guide block 41 continues to slide into the horizontal segment 62 to make the wiper arm body 1 remain in the storage state, and the push rod 63 of the third slider 6 gradually leaves the upper cover plate 9 to make the upper cover plate 9 reset under the action of the reset spring (at this time, the push rod 63 abuts against the end inclined surface of the upper cover plate 9, and pushes the upper cover plate 9 away when the reverse movement is waited for), which can also be replaced by other reset structures, In other embodiments, a connecting rod mechanism and the like are further provided to improve the stability of the displacement of the upper cover plate 9, for example, the connecting rod mechanism comprises first and second connecting rods arranged in parallel, the inner ends of the first and second connecting rods are hinged to the module shell, the outer ends are hinged to the third connecting rod, and together constitute three adjacent sides of a first parallelogram; the outer end hinge point of the first connecting rod is further hinged to the fourth connecting rod, the outer end hinge point of the second connecting rod is further hinged to the fifth connecting rod, the inner end of the fifth connecting rod is connected with a limiting rod, a limiting groove is formed in the module shell along the length direction, and the limiting rod is inserted downward, the fourth and fifth connecting rods are arranged in parallel and together constitute three adjacent sides of a second parallelogram with the third connecting rod, and the first and second parallelograms are arranged symmetrically, and the outer ends of the fourth and fifth connecting rods are hinged to the corresponding positions on the lower side of the upper cover plate 9, and the upper cover plate 9 can only be linearly opened and closed along the width direction, which can also be replaced by a guide rod or a guide rail structure.

[0025] The above is only a preferred embodiment of the present application and is not used to limit the present application, and those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the technical scheme of the present application.

Claims

1. A concealed windshield wiper with lidar for automobiles, characterized in that: The device includes a scraper arm body and a moving module. The moving module includes a moving guide rail, a first slider, and a drive assembly. The upper side of the first slider is connected to a first guide block adapted to the moving guide rail, and a rotating block is rotatably connected to the outer side. The drive assembly drives the first slider to move along the moving guide rail. The scraper arm body is connected to the rotating block. The rotating shaft of the rotating block is set horizontally, causing the scraper arm body to rotate upward to extend or downward to retract. The moving guide rail is set along the length of the moving module, guiding the extended scraper arm body to move back and forth for scraping.

2. The automotive lidar-based concealed windshield wiper according to claim 1, characterized in that: The moving guide rail is curved and adapted to the horizontal cross-section of the radar window's arc surface.

3. The automotive lidar-concealed windshield wiper according to claim 1 or 2, characterized in that: The scraper arm body includes an inner scraper blade, which is adapted to the vertical cross-section of the radar window arc surface.

4. The automotive lidar-concealed windshield wiper according to claim 1 or 2, characterized in that: The driving component includes a second slider that slides linearly along the length of the moving module. A first slider is slidably connected to the second slider, and the sliding direction is set along the width of the moving module.

5. The automotive lidar-based concealed windshield wiper according to claim 4, characterized in that: The driving component also includes a third slider with a slider guide rail. A second guide block adapted to the slider guide rail is connected to the rotating block. The slider guide rail includes an inclined line segment. The relative movement of the rotating block and the inclined line segment causes the rotating block to rotate.

6. The automotive lidar-concealed windshield wiper according to claim 5, characterized in that: The drive assembly includes a linear screw, a third slider is threadedly connected to the linear screw, and a locking element is provided between the third slider and the second slider. The second slider is locked by the locking element and slides with the third slider. The second slider is unlocked by the locking element and moves relative to the third slider.

7. The automotive lidar-based concealed windshield wiper according to claim 6, characterized in that: The locking element includes a locking block, the upper end of which slides up and down and is connected to the second slider / third slider, and the lower end of which is inserted downward into the third slider / second slider.

8. The automotive lidar-based concealed windshield wiper according to claim 7, characterized in that: The driving component includes an unlocking block with an inclined surface on its upper side facing the locking block. After passing the unlocking block, the locking block is gradually pushed upwards by the inclined surface until the lock between the second and third sliders is released.

9. The automotive lidar-based concealed windshield wiper according to claim 7, characterized in that: The moving module also includes an upper cover plate, which is opened and closed by hinge or sliding, allowing the scraper arm body to extend upwards outside the upper cover plate or be retracted downwards below the upper cover plate.

10. The automotive lidar-based concealed windshield wiper according to claim 9, characterized in that: The upper cover plate is slidably connected to the moving module along the width direction. A push rod is connected to the third slider. The corresponding end of the upper cover plate is an inclined surface. The slider guide rail also includes a horizontal section connected to the upper end of the inclined section. When the second guide block slides in the horizontal section, the third slider pushes the inclined surface at the end of the upper cover plate through the push rod to make it slide open.

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