A sensor and vehicle with built-in cleaning function

Abstract

This utility model discloses a sensor and vehicle with a built-in cleaning function, comprising a main body including a housing; and a venting pipe disposed within the housing, including an air inlet and an air outlet. The air inlet is used to connect to an air supply device, and the air outlet is used to face the object to be detected. The housing includes a first wall and a second wall, which are spaced apart along a first direction. The air inlet is located at the edge of the first wall and is flush with the first wall. The air outlet protrudes from the edge of the second wall by a distance ranging from 1mm to 2mm. The venting pipe also includes a pipe body extending along the first direction, having a uniform cross-section with a cross-sectional area ranging from 1mm to 3mm. This utility model can promptly clean foreign objects or accumulated water from the surface of the object to be detected.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to a sensor and vehicle with a self-cleaning function. Background Technology

[0002] In conventional applications, vehicle sensors are typically positioned at an interval from the object being detected. The sensor detects the state of the object through a detection chip within the sensor. Since the sensor uses a non-contact detection principle, the cleanliness of the object's surface has a significant impact on the accuracy and stability of the sensor's detection results.

[0003] In current sensor designs, if the surface of the object being detected is contaminated with foreign objects or comes into contact with water and cannot be cleaned in time, it may cause distortion of sensor signal acquisition or detection failure. The detection results obtained by the sensor may contain errors, thereby affecting the decision-making of the vehicle control system and posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to solve the problem of the inability to clean foreign objects or accumulated water on the surface of an object being tested in a timely manner. This invention provides a sensor and vehicle with a built-in cleaning function, which can promptly clean foreign objects or accumulated water from the surface of the object being tested.

[0005] To solve the above-mentioned technical problems, the present invention discloses a sensor with a self-cleaning function, which includes a main body, the main body including a housing; and a ventilation pipe disposed in the housing, the ventilation pipe including an air inlet and an air outlet, the air inlet being used to connect to an air supply device, and the air outlet being used to be opposite to the object to be detected.

[0006] Using the above technical solution, the sensor achieves non-contact detection of the object to be detected through a built-in detection chip. The housing provides sealed protection for the detection chip, ensuring that its internal working environment is dry and stable. The air outlet of the air duct is opposite to the object to be detected. The gas supplied by the air supply device is blown onto the surface of the object to be detected, which can effectively clean the surface of the object to be detected and ensure the accuracy and stability of the detection results.

[0007] According to another specific embodiment of the present invention, the housing includes a first wall and a second wall, the first wall and the second wall are spaced apart along a first direction, the air inlet is disposed on the edge of the first wall and is flush with the first wall, and the air outlet is protrudingly disposed on the edge of the second wall.

[0008] With the above technical solution, the air inlet is located on the first wall and the air outlet is located on the second wall, so that the ventilation pipe is located inside the housing, which can effectively reduce the space occupied by the sensor. The ventilation pipe extends to the outside of the housing, making the airflow in the ventilation pipe more concentrated, the pressure higher, and closer to the object to be detected, which can effectively improve the cleaning effect.

[0009] According to another specific embodiment of the present invention, the distance by which the air outlet protrudes from the second wall ranges from 1 mm to 2 mm.

[0010] According to another specific embodiment of the present invention, the ventilation pipeline further includes a pipeline body, which extends along the first direction.

[0011] By adopting the above technical solution and extending the ventilation pipeline along the first direction, the distance of gas flow can be effectively reduced and the gas transmission efficiency can be improved.

[0012] According to another specific embodiment of the present invention, the ventilation pipe is a body with a constant cross-section.

[0013] By adopting the above technical solution, the ventilation pipeline is a constant cross-section body, which makes the airflow within the ventilation pipeline smooth and the pressure stable and controllable.

[0014] According to another specific embodiment of the present invention, the cross-sectional area of ​​the ventilation pipe ranges from 1 mm to 3 mm.

[0015] If the cross-sectional area of ​​the ventilation pipe is too small, the amount of gas ejected will be insufficient. If the cross-sectional area is too large, the pressure at the outlet will be reduced, resulting in ineffective cleaning of the surface of the object to be tested. Setting the cross-sectional area within the range of 1mm to 3mm can ensure that effective pressure is formed in the ventilation pipe, thereby effectively cleaning the surface of the object to be tested.

[0016] According to another specific embodiment of the present invention, the housing includes a first part, a second part, and an annular groove. The first part and the second part are fixedly connected. The annular groove is disposed at the connection between the first part and the second part. A waterproof annular component is provided in the annular groove.

[0017] By adopting the above technical solution, the waterproof ring can effectively seal the connection of the housing, and when the vehicle is wading through water, it can effectively prevent foreign objects or water from entering the sensor through the connection.

[0018] According to another specific embodiment of this utility model, the waterproof ring is made of an elastic material.

[0019] By adopting the above technical solution and utilizing the stretchable properties of elastic materials, the waterproof ring can be tightly fitted to the joint without the need for additional connectors, thereby effectively sealing the joint.

[0020] The present invention also discloses a vehicle, which includes at least a sensor with a built-in cleaning function as described in any of the above embodiments, which includes a target object to be detected, the target object to be detected being spaced apart from the sensor; and an air supply device connected to the air inlet.

[0021] According to another specific embodiment of this utility model, the sensor is a wheel speed sensor; the object to be detected is a bearing; and the air supply device is an automotive air conditioning unit. Attached Figure Description

[0022] Figure 1 A three-dimensional schematic diagram of a sensor with a built-in cleaning function provided in an embodiment of this application is shown. Figure 1 .

[0023] Figure 2 A cross-sectional view of a sensor with a self-cleaning function provided in an embodiment of this application is shown. Figure 1 .

[0024] Figure 3 A side view of a sensor with a built-in cleaning function provided in an embodiment of this application is shown.

[0025] Figure 4 A cross-sectional view of a sensor with a self-cleaning function provided in an embodiment of this application is shown. Figure 2 .

[0026] Figure 5 A three-dimensional schematic diagram of a sensor with a built-in cleaning function provided in an embodiment of this application is shown. Figure 2 The waterproof ring-shaped component is not shown. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] In some existing embodiments, if the surface of the object to be detected is contaminated with foreign objects or comes into contact with water and cannot be cleaned in time, it may cause the sensor signal acquisition to be distorted or the detection to fail. The detection results obtained by the sensor may be erroneous, thereby affecting the decision-making of the vehicle control system and posing a safety hazard.

[0034] Therefore, this application provides a sensor with a built-in cleaning function for use in vehicles. The sensor is provided with a venting pipe, one end of which is connected to an air supply device, and the other end is provided with an opening. Gas is sprayed out through the venting pipe toward the surface of the object to be detected, thereby effectively cleaning foreign objects or moisture from the surface of the object to be detected.

[0035] For example, the object to be tested is a bearing, and the bearing is made of a metallic material. However, those skilled in the art will understand that in other embodiments, the bearing may be made of other materials, such as magnetic materials, and this application does not impose any limitations on this.

[0036] Specifically, refer to Figure 1 and Figure 2 The sensor 100 in this embodiment includes a main body 200 and a mounting part 300. The main body 200 includes a housing 210 and a detection chip 220. The detection chip 220 is disposed inside the housing 210 and is used to detect the object to be detected (not shown in the figure). The mounting part 300 includes a first flange part 310 and a second flange part 320. The main body 200 passes through the first flange part 310 and is fixedly connected to the first flange part 310. The second flange part 320 is used to fix the sensor 100 to the vehicle.

[0037] In this embodiment, sensor 100 is a speed sensor, which detects the rotational speed of the bearing through detection chip 220. However, those skilled in the art will understand that in other embodiments, other types of sensors may be used, such as electromagnetic sensors, optical sensors, etc., and the object to be detected may be other objects, such as gears, displays, etc., and this application does not impose any limitations on this.

[0038] Specifically, the built-in detection chip 220 enables non-contact detection of the object to be tested. The housing 210 provides sealed protection for the detection chip 220 to ensure that its internal working environment is dry and stable. Since non-contact detection is used, it is necessary to ensure that the surface of the object to be tested is dry and free of foreign matter in order to ensure the accuracy and stability of the detection results.

[0039] Further, refer to Figure 1 The sensor 100 in this embodiment of the application also includes a ventilation pipe 400, which includes an air inlet 410 and an air outlet 420. The air inlet 410 is used to connect to an air supply device, and the air outlet 420 is used to be opposite to the object to be detected. The ventilation pipe 400 is disposed in the housing 210.

[0040] It is understood that the aforementioned air supply device may be an automotive air conditioning unit used to control the temperature inside the vehicle, or it may be an independently installed electric air pump, etc., and this application does not impose any restrictions on it.

[0041] It should be noted that, in this embodiment, when the user starts the car's air conditioning, the gas generated inside the air conditioning unit is delivered to the air inlet 410 through a pipe. After the gas is ejected outward from the air outlet 420 through the ventilation pipe 400, it cleans the bearing surface, thereby preventing the accuracy and precision of the sensor from decreasing due to obstruction by foreign objects during driving. However, those skilled in the art will understand that in other embodiments, the cleaning frequency needs to be determined according to requirements, and this application does not limit the cleaning frequency and duration.

[0042] In other words, the car's air conditioning unit supplies air, which enters the ventilation pipe 400 through the air inlet 410 and is ejected from the air outlet 420 along the ventilation pipe 400. The air outlet 420 is opposite to the bearing, so that the ejected airflow directly acts on the bearing surface to achieve the cleaning function.

[0043] For example, the ventilation conduit 400 is made of rubber. However, those skilled in the art will understand that in other embodiments, the ventilation conduit 400 may be made of other materials, such as plastic, and this application does not impose any limitations on this.

[0044] Further, refer to Figure 1 , Figure 3 and Figure 4 The housing 210 includes a first wall 211 and a second wall 212. The first wall 211 and the second wall 212 are spaced apart along the first direction X. The air inlet 410 is disposed on the edge of the first wall 211 and is flush with the first wall 211. The air outlet 420 protrudes from the edge of the second wall 212.

[0045] In this embodiment, the housing 210 is provided with a first wall 211 and a second wall 212. The air inlet 410 is flush with the first wall 211, and the air outlet 420 protrudes from the second wall 212. Thus, the ventilation pipe 400 is provided inside the sensor 100, which can effectively reduce the space occupied by the sensor 100.

[0046] In some possible implementations, the air outlet 420 is flush with the second wall 212.

[0047] In some possible implementations, the air inlet 410 is located at the center of the first wall 211, and the air outlet 420 is located at the center of the second wall 212.

[0048] It should be noted that those skilled in the art will understand that the setting path of the ventilation pipe 400 can be determined according to the structure of different sensors and the fixing method of different sensors. It is only necessary to ensure that the air outlet 420 is opposite to the object to be detected. This application does not limit the setting path and fixing method of the ventilation pipe 400.

[0049] Further, refer to Figure 1 and Figure 4 The distance H between the air outlet 420 and the second wall 212 ranges from 1mm to 2mm, such as 1mm, 1.5mm, 2mm, etc.

[0050] Specifically, the vent 400 extends to the outside of the housing 210, making the airflow within the vent 400 more concentrated, the pressure higher, and closer to the object to be inspected, which can effectively improve the cleaning effect. However, those skilled in the art will understand that in other embodiments, the distance H between the air inlet 410 and the second wall 212 can be any intermediate value such as 1.3mm or 1.7mm, ranging from 1mm to 2mm, and this application does not limit this.

[0051] Further, refer to Figure 4 The ventilation duct 400 also includes a duct body 430, which extends along the first direction X. The duct body 430 is a body with a constant cross-section, and the cross-sectional area S of the duct body 430 ranges from 1 mm to 3 mm, such as 1 mm, 2 mm, 3 mm, etc.

[0052] For example, the pipe body 430 is disposed through the main body 200 along the first direction X. However, those skilled in the art will understand that in other embodiments, the pipe body 430 may not extend along the first direction X. For example, the pipe body 430 may be an S-shaped bend or an L-shaped bend, etc., and this application does not limit it in this way.

[0053] In some possible implementations, the pipe body 430 may be non-penetratingly disposed within the main body 200. For example, an independently installed electric air pump may be disposed within the main body 200, with the air inlet 410 connected to the electric air pump within the main body 200 and the air outlet 420 protruding from the second wall 212.

[0054] In some possible implementations, a snap fastener is provided on the housing 210 to secure the venting line 400 to the sensor 100.

[0055] It should be noted that if the cross-sectional area S of the pipe body 430 is too small, the amount of gas ejected will be insufficient. If the cross-sectional area S is too large, it will reduce the pressure at the outlet 420, resulting in ineffective cleaning of the surface of the object to be inspected. The range of the cross-sectional area S is set within 1mm to 3mm to ensure that effective pressure is formed within the pipe body 430, thereby effectively cleaning the surface of the object to be inspected. However, those skilled in the art will understand that in other embodiments, the size of the cross-sectional area S can be any intermediate value within the range of 1mm to 3mm, such as 1.8mm, 2mm, or 2.8mm, and this application does not impose any limitation on this.

[0056] refer to Figure 1 and Figure 5 The housing 210 includes a first part 213, a second part 214 and an annular groove 215. The first part 213 and the second part 214 are fixedly connected. The annular groove 215 is disposed at the connection 216 between the first part 213 and the second part 214. A waterproof annular component 500 is provided in the annular groove 215. The waterproof annular component 500 is made of elastic material.

[0057] For example, the first part 213 and the second part 214 are fixed by welding. However, those skilled in the art will understand that in other embodiments, the first part 213 and the second part 214 can be connected by other means, such as snap-fit ​​connection, riveting, etc., and this application does not limit this.

[0058] Specifically, the waterproof ring 500 can effectively seal the connection 216, effectively preventing foreign objects or water from entering the sensor 100 through the connection 216 when the vehicle is wading through water.

[0059] In this embodiment, the waterproof ring component 500 is a ring structure. However, those skilled in the art will understand that in other embodiments, the waterproof ring component 500 can be other shapes, such as a hollow cuboid, a hollow cube, etc., and this application does not impose any limitations on this.

[0060] For example, the waterproof ring 500 is made of hydrogenated nitrile rubber. However, those skilled in the art will understand that in other embodiments, the waterproof ring 500 can be made of other materials, such as silicone rubber, ethylene propylene rubber, etc., and this application does not limit this.

[0061] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A self-cleaning sensor, characterized by, include: The main body includes a housing; A ventilation pipe is provided in the housing. The ventilation pipe includes an air inlet and an air outlet. The air inlet is used to connect to the air supply device, and the air outlet is used to be opposite to the object to be tested.

2. The self-cleaning sensor of claim 1, wherein, The housing includes a first wall and a second wall, which are spaced apart along a first direction. The air inlet is located at the edge of the first wall and is flush with the first wall. The air outlet protrudes from the edge of the second wall.

3. The self-cleaning sensor of claim 2, wherein, The distance by which the air outlet protrudes from the second wall ranges from 1 mm to 2 mm.

4. The self-cleaning sensor of any one of claims 2 or 3, wherein, The ventilation duct also includes a duct body, which extends along the first direction.

5. The self-cleaning sensor of claim 4, wherein, The pipeline body is a body with a constant cross-section.

6. The self-cleaning sensor of claim 5, wherein, The cross-sectional area of ​​the pipeline body ranges from 1 mm to 3 mm.

7. The self-cleaning sensor of any one of claims 1 to 6, wherein, The housing includes a first part, a second part, and an annular groove. The first part and the second part are fixedly connected. The annular groove is disposed at the connection between the first part and the second part. A waterproof annular component is provided in the annular groove.

8. The self-cleaning sensor of claim 7, wherein, The waterproof ring is made of an elastic material.

9. A vehicle, characterized in that, include: The sensor according to any one of claims 1-8; The object to be detected is spaced apart from the sensor; An air supply device is connected to the air inlet.

10. The vehicle as claimed in claim 9, characterized in that, The sensor is a wheel speed sensor; The object to be tested is a bearing; The gas supply device is a car air conditioning unit.

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