Anti-blocking sensor cleaning structure

Abstract

The utility model relates to the technical field of cleaning structures, in particular to an anti-blocking sensor cleaning structure. According to the technical scheme, the radar sensor comprises a radar sensor body and further comprises a base arranged at the bottom of the body, a cleaning structure is arranged in the base and comprises an air inlet and an air outlet, and a slope structure used for dust prevention is arranged on the air outlet. External pollutants are prevented from entering a cavity of the cleaning structure, the external pollutants are guided to slide out of the cleaning structure along the slope, and therefore the purposes of dust prevention and blockage prevention are achieved, and meanwhile the device is compact in structure, small in size, low in cost and beneficial to installation and arrangement; in addition, the surface of the laser radar can be cleaned comprehensively, quickly and losslessly.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning structure technical field especially relates to a sensor cleaning structure of preventing blockage. BACKGROUND

[0002] With the rapid development of automatic driving, robot navigation and unmanned aerial vehicle fields, as the key environmental perception sensor, the stability of the performance and the accuracy of data of laser radar are very important. However, long-term exposure to complex and changeable natural environment, the surface of laser radar sensor is easy to accumulate dust, water mist and large particle, seriously affect its measurement accuracy and detection distance. Therefore, it is particularly important to develop an efficient and reliable laser radar cleaning system, the sensor cleaning structure in the prior art often adopts dust collection method, generates suction through turbine type or piston type dust collection pump, and the dust on the surface of the sensor is sucked away through the conduit. This method has complex structure, large volume, high cost and is not conducive to installation and arrangement, therefore, we propose a sensor cleaning structure for preventing blockage. SUMMARY

[0003] The utility model aims at the problem of complex structure, large volume, high cost and being not conducive to installation and arrangement in the prior art sensor cleaning structure in the background art, and proposes a sensor cleaning structure for preventing blockage.

[0004] The technical scheme of the utility model relates to a sensor cleaning structure for preventing blockage, which comprises a radar sensor body and further comprises:

[0005] A base is arranged at the bottom of the body, a cleaning structure is arranged in the base, the cleaning structure comprises an air inlet and an air outlet, and a slope structure for preventing dust is arranged on the air outlet.

[0006] Optionally, the cleaning structure further comprises a mounting piece fixedly connected to the base, the mounting piece comprises a mounting piece inner side surface close to one side of the body, and a curved air duct guide structure is arranged in the mounting piece.

[0007] Optionally, the cleaning structure further comprises a cavity opened in the mounting piece, and the cavity is in communication with the air inlet and the air duct guide structure respectively.

[0008] Optionally, the air inlet is arranged at the bottom of the base, and the air inlet is provided with a microporous filter screen structure.

[0009] Optionally, a positioning block is fixedly arranged on the side of the mounting piece close to the body, the positioning block is integrally formed with the mounting piece, and the slope structure is integrally formed with the mounting piece.

[0010] Optionally, the ramp structure comprises a ramp structure inner side face, and the ramp structure inner side face edge and the mounting piece inner side face are each provided with an anti-intrusion structure.

[0011] Optionally, the mounting piece comprises a mounting piece air outlet lower edge and a mounting piece air outlet upper edge, and the mounting piece air outlet lower edge is located on the side away from the body of the vertical extension line of the mounting piece air outlet upper edge.

[0012] In summary, the present application comprises at least one of the following beneficial technical effects:

[0013] 1. The utility model discloses a ramp structure above the air outlet avoids the entry of external pollutants such as rain, large particles and dust into the cleaning structure cavity, and the anti-intrusion structure of the edge, the mounting piece air outlet upper edge covers the mounting piece air outlet lower edge, avoids the invasion of dirt such as raindrop and dust, and guides the external pollutants to slide along the ramp to the outside of the cleaning structure, so as to achieve the purposes of dustproof and anti-clogging.

[0014] 2. The utility model discloses a wind channel guide structure to ensure that the cleaning gas is sprayed to the laser radar surface in a uniform and high-speed state, forms an effective airflow flushing effect, removes the dust and small particles attached to the surface, and comprehensively, quickly and non-destructively cleans the laser radar surface. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure schematic diagram of the utility model in embodiment 1 is given.

[0016] Figure 2 The top view structure schematic diagram of the utility model in embodiment 1 is given.

[0017] Figure 3 For Figure 2 The cross section structure schematic diagram at D-D in the middle is given.

[0018] Figure 4 For Figure 2 The cross section structure schematic diagram at G-G in the middle is given.

[0019] Figure 5 The local enlarged structure schematic diagram at A in the middle is given. Figure 3

[0020] Figure 6 The overall structure schematic diagram of the utility model in embodiment 2 is given.

[0021] Figure 7 The top view structure schematic diagram of the utility model in embodiment 2 is given.

[0022] Figure 8 The local enlarged structure schematic diagram at A in the middle is given.​Figure 7 a cross-sectional structure schematic view at E-E in FIG. 1;

[0023] Figure 9 a cross-sectional structure schematic view at F-F in FIG. 1 is given; Figure 7 a cross-sectional structure schematic view at F-F in FIG. 1 is given;

[0024] Figure 10 a cross-sectional structure schematic view at H-H in FIG. 1 is given;

[0025] Figure 11 a cross-sectional structure schematic view at H-H in FIG. 1 is given;

[0026] Figure 12 a cross-sectional structure schematic view at H-H in FIG. 1 is given; Figure 11 a cross-sectional structure schematic view at H-H in FIG. 1 is given.

[0027] Label: 1, body; 2, base; 3, air inlet; 4, mounting; 41, mounting inner side; 42, mounting air outlet lower edge; 43, mounting air outlet upper edge; 5, cavity; 6, air duct guide structure; 7, positioning block; 8, slope structure; 81, slope structure inner side; 9, air outlet. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0029] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0030] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] In the description of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0034] Embodiment 1

[0035] As Figures 1 to 5 The utility model discloses a kind of anti-blocking sensor cleaning structures, including radar sensor body 1, also including the base 2 of bottom part of body 1, the plan view of base 2 is rectangle, cleaning structure is equipped in the inside of base 2;

[0036] Wherein, cleaning structure includes air inlet 3 and air outlet 9, air inlet 3 is located at the bottom of base 2, in the embodiment, the length of air inlet 3 is lower than the height of base 2, the bottom of air inlet 3 is located in the inside of base 2, air inlet 3 is connected with external air inlet device, so that external cleaning gas enters cavity 5 connected with air inlet 3 through air inlet 3, air inlet 3 is set with microporous filter screen structure, can block large particles and rainwater directly into cleaning structure inside, while allowing clean gas to enter smoothly;

[0037] In addition, air outlet 9 is equipped with slope structure 8 for dust prevention, slope structure 8 includes slope structure inner side 81, the edge of slope structure inner side 81 and mounting piece inner side 41 are all equipped with anti-invasion structure, slope structure inner side 81 is projected on mounting piece inner side 41 along the set angle, slope structure 8 avoids rainwater, large particles and dust and other external pollutants to enter cleaning structure cavity 5 through unintended path, and cooperates with the anti-invasion structure of edge, so as to guide external pollutants to slide along slope structure 8 to outside of cleaning structure, so as to achieve the purpose of dust prevention and anti-blocking, while the device structure is compact, small in size, low in cost and conducive to installation and arrangement;

[0038] In this embodiment, the cleaning structure further comprises a mounting piece 4 fixedly connected to the base 2, the mounting piece 4 comprises a mounting piece inner side 41 close to one side of the body 1, and the mounting piece 4 is internally provided with a curved air duct guide structure 6, the cleaning structure further comprises a cavity 5 opened in the mounting piece 4, the cavity 5 is in communication with the air inlet 3 and the air duct guide structure 6 respectively, and the cleaning gas enters the air duct guide structure 6 through the cavity 5 to clean the body 1, the air duct guide structure 6 utilizes the principle of fluid mechanics to make the cleaning gas be sprayed to the surface of the body 1 in a uniform state, so that an effective airflow flushing effect is formed, thereby realizing the removal of dust and tiny particulate matters attached to the surface;

[0039] The mounting piece 4 comprises a mounting piece air outlet lower edge 42 and a mounting piece air outlet upper edge 43, the mounting piece air outlet lower edge 42 is located on the side away from the body 1 of the vertical extension line of the mounting piece air outlet upper edge 43, and the vertical extension line of the mounting piece air outlet upper edge 42 is always on the left side of the vertical extension line of the mounting piece air outlet lower edge 43, so that the mounting piece air outlet upper edge 43 covers the mounting piece air outlet lower edge 42, thereby avoiding the invasion of raindrops, dust and other dirt;

[0040] In addition, the mounting piece 4 is fixedly provided with a positioning block 7 close to one side of the body 1, the positioning block 7 is integrally formed with the mounting piece 4, and the positioning block 7 is used to limit the distance between the cleaning structure and the body 1, so as to ensure that the gap is uniform, thereby ensuring that stable cleaning effect can be maintained during the high-speed rotation of the laser radar sensor body 1.

[0041] Embodiment 2

[0042] As shown in Figures 6 to 9 , based on the basis of embodiment 1, the top view of the base 2 at the bottom of the body 1 is circular, the shape of the mounting piece 4 and the outer side of the slope structure 8 can be changed according to actual needs, and the mounting piece 4 can be replaced and added, in this embodiment, the length of the air inlet 3 is higher than the height of the base 2, and the bottom of the air inlet 3 is located outside the bottom of the base 2.

[0043] Embodiment 3

[0044] As shown in Figures 9-12 , based on the basis of embodiment 1 and embodiment 2, the surface form of the sensor can be various, in addition to the above-mentioned arc surface, it can also be used for flat surface and other curved surface sensors, in this embodiment, the structure of the utility model suitable for square curved surface sensor is given.

[0045] Working principle: in the working process of the utility model, the air inlet 3 is linked with the external air inlet device, so that the external clean gas enters the cavity 5 connected with the air inlet 3 through the air inlet 3, the air inlet 3 adopts the microporous filter screen structure and is arranged, can block the large particle and rainwater and directly enter the inside of the cleaning structure, simultaneously allows the clean gas to enter smoothly, the clean gas enters the air duct guiding structure 6 in the cavity 5 again, carries out the cleaning to the body 1, the air duct guiding structure 6 utilizes the principle of fluid mechanics, so that the clean gas is sprayed to the surface of the body 1 in the uniform state, forms the effective airflow scouring effect, thereby realizes the removal dust and small particle adhered on the surface, the dust-containing gas after cleaning is discharged through the air outlet 9, keeps the inside of the cleaning structure clean, in addition, the slope structure 8 on the air outlet 9 avoids rainwater, large particle and dust and other external pollutants to enter the cleaning structure cavity 5 through the unintended path, and cooperates with the edge of the anti-invasion structure, and the upper edge 43 of the mounting piece air jet covers the lower edge 42 of the mounting piece air jet, avoids the raindrop and dust and other dirt invasion, thereby guides the external pollutants to slide along the slope structure 8 and falls to the outside of the cleaning structure, thereby reaches the dustproof, the purpose of anti-clogging, simultaneously, the compact structure of the device, small volume, low cost and facilitate installation arrangement.

[0046] The above specific embodiments are only several optional embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiment, the person skilled in the art can make multiple alternative improvements and combinations to the above specific embodiments.

Claims

1. A clog-proof sensor cleaning structure comprising a radar sensor body (1), characterized in that, Also include: The base (2) is arranged at the bottom of the body (1), the cleaning structure is arranged in the base (2), the cleaning structure includes air inlet (3) and air outlet (9), the air outlet (9) is provided with slope structure (8) for dust prevention; The cleaning structure further includes a mounting member (4) fixedly connected to the base (2), the mounting member (4) includes a mounting member inner side (41) close to one side of the body (1), the mounting member (4) is provided with a curved air duct guide structure (6) inside, the cleaning structure further includes a cavity (5) opened in the mounting member (4), the cavity (5) is respectively communicated with the air inlet (3), air duct guide structure (6).

2. The anti-clogging sensor cleaning structure according to claim 1, characterized by, The air inlet (3) is located at the bottom of the base (2), and the air inlet (3) is provided with a microporous filter screen structure.

3. A clog-resistant sensor cleaning structure as claimed in claim 2, wherein, The mounting member (4) is fixedly installed with a positioning block (7) close to one side of the body (1), and the slope structure (8) is integrally formed with the mounting member (4).

4. A clog-resistant sensor cleaning structure as claimed in claim 3, wherein, The slope structure (8) includes a slope structure inner side (81), and the slope structure inner side (81) edge and the mounting member inner side (41) are provided with anti-invasion structure.

5. A clog-resistant sensor cleaning structure as claimed in claim 4, wherein, The mounting member (4) includes a mounting member air outlet lower edge (42) and a mounting member air outlet upper edge (43), and the mounting member air outlet lower edge (42) is located on the vertical line away from one side of the body (1) of the mounting member air outlet upper edge (43).

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