Seal strip, radar cover plate assembly, and vehicle

Abstract

The application discloses a sealing strip, a radar cover plate assembly and a vehicle. The sealing strip is used in connection with the radar cover plate. The sealing strip comprises a self-lubricating sealing part. The material of the self-lubricating sealing part is a self-lubricating material. The self-lubricating sealing part is used for abutting against a curtain glass. A weakened part is arranged on the self-lubricating sealing part. The weakened part penetrates through the self-lubricating sealing part along the length direction of the self-lubricating sealing part. In the embodiment of the application, the friction between the self-lubricating sealing part and the curtain glass can be reduced, so that the problem of abnormal sound caused by friction can be solved.

Description

Technical Field

[0001] This application relates to the field of sealing strip technology, and in particular to a sealing strip, radar cover assembly, and vehicle. Background Technology

[0002] To enable environmental perception and driver assistance functions, vehicles are typically equipped with lidar, with the lidar located on the top front side between the windshield and the sunroof.

[0003] To protect the lidar and optimize the vehicle's appearance, the lidar housing is equipped with a cover. The cover has adhesive strips along its edges, which press tightly against the edge of the panoramic glass to seal the gap between the cover and the panoramic glass.

[0004] However, during vehicle operation, especially when traversing uneven or undulating road surfaces, the sunroof glass is prone to slight relative movement with the cover plate. This relative movement can cause friction between the rubber strip and the sunroof glass, leading to abnormal noises. Utility Model Content

[0005] This application provides a sealing strip, a radar cover assembly, and a vehicle, aiming to at least solve the technical problem in the prior art where friction between the sealing strip and the sunroof glass causes abnormal noise.

[0006] In a first aspect, embodiments of this application provide a sealing strip for connecting to a radar cover plate; The sealing strip includes a self-lubricating sealing part, which is made of a self-lubricating material and is used to press against the skylight glass. The self-lubricating seal is provided with a weakening portion, which penetrates the self-lubricating seal along its length.

[0007] Optionally, the weakening portion is a groove; The self-lubricating seal has a first surface for abutting against the skylight glass, and the groove includes a first groove formed on the first surface. The first surface has an overlapping area for abutting against the skylight glass, and at least a portion of the first groove is located in the overlapping area.

[0008] Optionally, there may be multiple first grooves, and the self-lubricating sealing part has a first end and a second end. In the direction from the first end to the second end, the multiple first grooves are arranged at intervals.

[0009] Optionally, the self-lubricating seal further has a second surface opposite to the first surface, and the groove further includes a second groove formed at one end of the second surface away from the overlapping area.

[0010] Optionally, the sealing strip further includes a sealing strip body; The sealing strip body has a width direction, and the self-lubricating sealing part is connected to one side of the sealing strip body along the width direction. The sealing strip body is used to connect with the radar cover plate. The material of the sealing strip body is different from that of the self-lubricating sealing part, and the self-lubricating sealing part and the sealing strip body are integrally formed.

[0011] Optionally, the self-lubricating material is any one of self-lubricating thermoplastic elastomer, self-lubricating thermoplastic vulcanized rubber, and self-lubricating EPDM rubber.

[0012] Secondly, embodiments of this application provide a radar cover assembly, including a radar cover and a sealing strip as described above, wherein the sealing strip is connected to the radar cover.

[0013] Optionally, the radar cover assembly further includes an adhesive member located between the sealing strip body and the radar cover, wherein the sealing strip body is bonded to the radar cover by the adhesive member.

[0014] Optionally, the radar cover assembly further includes sealing foam connected to the sealing strip body in the sealing strip, and the surface of the sealing foam facing away from the sealing strip body is used to press against the roof sheet metal.

[0015] Thirdly, embodiments of this application provide a vehicle including a panoramic glass screen and a radar cover assembly as described above.

[0016] In this embodiment, the self-lubricating seal is made of a self-lubricating material, resulting in a low coefficient of friction between the self-lubricating seal and the skylight glass. Furthermore, while ensuring the self-lubricating seal firmly adheres to the skylight glass, thus guaranteeing its sealing effect, the weakening portion appropriately weakens the self-lubricating seal, thereby reducing the pressure exerted by the self-lubricating seal on the skylight glass. By reducing the coefficient of friction and the pressure, the friction between the self-lubricating seal and the skylight glass is reduced, thus solving the problem of friction-induced noise. Additionally, the self-lubricating seal is made of a self-lubricating material, which simplifies the manufacturing process compared to coatings or flocking on the sealing strip, avoiding increased component costs due to complex manufacturing processes.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application, it can be implemented according to the contents of the specification. In order to make other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0018] Figure 1 A schematic diagram of the sealing strip, radar cover, and skylight glass provided in the embodiments of this application.

[0019] Figure label: 10-Sealing strip, 11-Self-lubricating sealing part, 111-First surface, 112-Second surface, 113-First groove, 114-Second groove, 12-Sealing strip body, 121-Main body section, 122-Blocking section.

[0020] 20 - Radar cover plate, 30 - Adhesive component, 40 - Sealing foam, 50 - Skylight glass. Detailed Implementation

[0021] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0022] During vehicle operation, especially when traversing uneven or undulating road surfaces, the sunroof glass is prone to slight relative movement with the cover plate. This relative movement causes friction between the sealing strip and the sunroof glass, leading to abnormal noise. To address the above issues, embodiments of this application provide a sealing strip, a radar cover plate assembly, and a vehicle. The sealing strip, radar cover plate assembly, and vehicle mentioned above are described in detail below.

[0023] Firstly, referring to Figure 1 This application provides a sealing strip 10 for connecting with a radar cover plate 20. The sealing strip 10 includes a self-lubricating sealing part 11, which is made of a self-lubricating material and is used to press against the skylight glass 50. The self-lubricating sealing part 11 is provided with a weakening part, which penetrates the self-lubricating sealing part 11 along its length.

[0024] The sealing strip 10 is applied to a vehicle, which includes a windshield, a lidar sensor, a lidar cover 20, and a panoramic sunroof 50. The lidar cover 20 covers the lidar sensor and is located between the windshield and the panoramic sunroof 50 along the length of the vehicle. The lidar cover 20 can be a long strip extending along the width of the vehicle, and the sealing strip 10 is located on the rear edge of the lidar cover 20 near the panoramic sunroof 50. The sealing strip 10 and the lidar cover 20 can be connected by adhesive, snap-fit, interference fit, etc.

[0025] Self-lubricating materials refer to materials that can maintain a low coefficient of friction and a low wear rate during friction without the addition of external lubricants (such as oil or grease), i.e., materials with self-lubricating properties. Self-lubricating materials can include self-lubricating thermoplastic elastomers, self-lubricating thermoplastic vulcanized rubber, self-lubricating EPDM rubber, etc. Other materials can also be used, as long as they meet the requirements for self-lubrication and sealing. The self-lubricating sealing part 11 is specifically used to press against the edge of the skylight glass 50.

[0026] The weakening part can be a groove or a circumferentially closed hole. When the weakening part is a groove, the cross-sectional shape of the groove can be semi-circular, arc-shaped, triangular, square, trapezoidal, irregular, etc., and the cross-section of the groove is perpendicular to the length direction of the self-lubricating sealing part 11. When the weakening part is a hole, the cross-sectional shape of the hole can be circular, elliptical, triangular, square, trapezoidal, irregular, etc., and the cross-section of the hole is perpendicular to the length direction of the self-lubricating sealing part 11.

[0027] The sealing strip 10 also includes a sealing strip body 12, which has a width direction. A self-lubricating sealing part 11 is connected to one side of the sealing strip body 12 along the width direction. The sealing strip body 12 is used to connect with the radar cover plate 20. The width direction of the sealing strip body 12 can be referred to... Figure 1 The direction indicated by arrow A. The material of the sealing strip body 12 is different from that of the self-lubricating sealing part 11.

[0028] In this embodiment, the self-lubricating sealing part 11 is made of a self-lubricating material, resulting in a low coefficient of friction between the self-lubricating sealing part 11 and the skylight glass 50. Furthermore, while ensuring the self-lubricating sealing part 11 firmly abuts against the skylight glass 50, thus guaranteeing its sealing effect, the weakening part appropriately weakens the self-lubricating sealing part 11, thereby reducing the pressure exerted by the self-lubricating sealing part 11 on the skylight glass 50. By reducing the coefficient of friction and the pressure, the friction between the self-lubricating sealing part 11 and the skylight glass 50 is reduced, thus solving the problem of abnormal noise caused by friction. Additionally, the self-lubricating sealing part 11 is made of a self-lubricating material, which simplifies the manufacturing process compared to applying a coating or flocking to the sealing strip 10, avoiding increased component costs due to complex manufacturing processes.

[0029] In some embodiments, the weakening portion is a groove; the self-lubricating sealing portion 11 has a first surface 111 for abutting against the skylight glass 50, and the groove includes a first groove 113 formed on the first surface 111. The first surface 111 has an overlapping area for abutting against the skylight glass 50, and at least a portion of the first groove 113 is located in the overlapping area. In this embodiment, at least a portion of the first groove 113 is located in the overlapping area, which on the one hand can directly weaken the overlapping area, and on the other hand can reduce the contact area between the self-lubricating sealing portion 11 and the skylight glass 50, thereby reducing the friction area and effectively suppressing friction noise.

[0030] The first groove 113 extends through the self-lubricating sealing part 11 along its length. The overlapping area of ​​the first surface 111 is the area where the first surface 111 actually abuts against the skylight glass 50. The cross-sectional shape of the first groove 113 can be semi-circular, arc-shaped, etc. The groove width of the first groove 113 can be 0.4 mm, and the depth of the first groove 113 can be 0.2 mm.

[0031] There are multiple first grooves 113. The first surface 111 also has a non-overlapping area that does not contact the skylight glass 50. As an example, some of the first grooves 113 are located in the overlapping area, and some of the first grooves 113 are located in the non-overlapping area. As another example, all the first grooves 113 are located in the overlapping area.

[0032] In some embodiments, the number of first grooves 113 is multiple, and the self-lubricating sealing portion 11 has a first end and a second end. The multiple first grooves 113 are arranged at intervals in the direction from the first end to the second end. The arrangement of multiple first grooves 113 ensures an appropriate weakening effect on the self-lubricating sealing portion 11.

[0033] The first end of the self-lubricating sealing part 11 is the end of the self-lubricating sealing part 11 that is away from the sealing strip body 12, and the second end of the self-lubricating sealing part 11 is the end that connects the self-lubricating sealing part 11 to the sealing strip body 12. The direction from the first end to the second end of the self-lubricating sealing part 11 can be referred to... Figure 1 The direction indicated by arrow B in the middle.

[0034] The number of first grooves 113 can be 2, 3, 4, 5, etc. At least 2 first grooves 113 are located in the overlapping area of ​​the first surface 111. In the direction from the first end to the second end, the distance between two adjacent first grooves 113 is greater than the groove width of the first groove 113, and the distance between two adjacent first grooves 113 can be 0.6mm.

[0035] In some embodiments, the self-lubricating seal 11 further has a second surface 112 opposite to the first surface 111, and the groove further includes a second groove 114 formed at one end of the second surface 112 away from the overlapping area. The provision of the second groove 114 can ensure an appropriate weakening effect on the self-lubricating seal 11.

[0036] The second groove 114 is formed at one end of the second surface 112 near the sealing strip body 12, and extends through the self-lubricating sealing part 11 along its length. The shape of the second groove 114 can be arc-shaped. The groove width of the second groove 114 can be 2.4 mm, and the depth of the second groove 114 is greater than the depth of the first groove 113, which can be 0.3 mm.

[0037] In some embodiments, the sealing strip body 12 has a width direction, and the self-lubricating sealing part 11 is connected to one side of the sealing strip body 12 along the width direction. The sealing strip body 12 is used to connect with the radar cover plate 20. The material of the sealing strip body 12 is different from that of the self-lubricating sealing part 11, and the self-lubricating sealing part 11 and the sealing strip body 12 are integrally formed.

[0038] The junction line between the self-lubricating sealing part 11 and the sealing strip body 12 is... Figure 1 The line indicated by arrow C. The material of the sealing strip body 12 is any one of thermoplastic elastomer (TPE), thermoplastic vulcanizate (TPV), and ethylene propylene diene monomer (EPDM) rubber to ensure that the sealing strip body 12 can be firmly bonded to the radar cover plate 20.

[0039] The sealing strip body 12 includes a main body segment 121 and a blocking segment 122. The main body segment 121 is connected to the self-lubricating sealing part 11 and is used to connect with the radar cover plate 20. The blocking segment 122 is located on the side of the main body segment 121 away from the radar cover plate 20 and protrudes in the direction away from the radar cover plate 20. The main body segment 121 has a lower surface away from the radar cover plate 20, and the interface between the main body segment 121 and the blocking segment 122 is the plane containing the lower surface of the main body segment 121.

[0040] The self-lubricating sealing part 11 and the sealing strip body 12 are integrally extruded. Specifically, a two-material co-extrusion method is adopted to extrude the self-lubricating sealing part 11 and the sealing strip body 12 integrally. In this embodiment, the self-lubricating sealing part 11 and the sealing strip body 12 are integrally formed, that is, the self-lubricating sealing part 11 and the sealing strip body 12 are processed and formed simultaneously. This simplifies the manufacturing process of the sealing strip 10, and there is no splicing seam between the self-lubricating sealing part 11 and the sealing strip body 12, which can ensure the mechanical properties of the connection between the self-lubricating sealing part 11 and the sealing strip body 12.

[0041] In some embodiments, the self-lubricating material is any one of a self-lubricating thermoplastic elastomer, a self-lubricating thermoplastic vulcanizate, or a self-lubricating EPDM rubber. In this embodiment, the self-lubricating material possesses lubricity and is highly economical.

[0042] Self-lubricating thermoplastic elastomers are composite materials modified by adding lubricants to traditional thermoplastic elastomers. Self-lubricating thermoplastic vulcanizates are composite materials modified by adding lubricants to traditional thermoplastic vulcanizates. Self-lubricating EPDM rubber is a composite material modified by adding lubricants to traditional EPDM rubber. The lubricant can be one or more of the following: paraffin wax, polyethylene wax, polytetrafluoroethylene (PTFE) powder, oleamide, erucamide, and zinc stearate.

[0043] It should be noted that the components and preparation methods of self-lubricating thermoplastic elastomers, self-lubricating thermoplastic vulcanizates, and self-lubricating EPDM rubbers are known to those skilled in the art and will not be described in detail here.

[0044] For example, for self-lubricating thermoplastic elastomers, traditional thermoplastic elastomer raw materials are used as the base material. A certain mass fraction of lubricant is added to the base material and stirred and mixed until homogeneous. This mixture is then extruded through an extruder to obtain the self-lubricating thermoplastic elastomer. For self-lubricating thermoplastic vulcanizates, traditional thermoplastic vulcanizates are used as the base material. A certain mass fraction of lubricant is added to the base material and stirred and mixed until homogeneous. This mixture is then extruded through an extruder to obtain the self-lubricating thermoplastic vulcanizate. For self-lubricating EPDM rubber, traditional EPDM rubber is used as the base material. A certain mass fraction of lubricant is added to the base material and stirred and mixed until homogeneous. This mixture is then extruded through an extruder to obtain the self-lubricating EPDM rubber. The mass fraction of the lubricant can be set according to actual needs, for example, from 0.1 parts to 10 parts.

[0045] It should be noted that in the description of this embodiment, the front-back, left-right, and up-down directions are consistent with the front-back, left-right, and up-down directions of the vehicle.

[0046] Secondly, embodiments of this application provide a radar cover assembly, including a radar cover 20 and a sealing strip 10 provided in the first aspect, wherein the sealing strip 10 is connected to the radar cover 20.

[0047] The sealing strip 10 includes a self-lubricating sealing part 11, which is made of a self-lubricating material and is used to press against the skylight glass 50. A groove is formed on the self-lubricating sealing part 11, extending through it along its length. The sealing strip 10 also includes a sealing strip body 12, which is connected to the radar cover plate 20.

[0048] Since the radar cover assembly includes the aforementioned sealing strip, it also possesses the beneficial effects of the aforementioned sealing strip, which will not be elaborated upon here.

[0049] In some embodiments, the radar cover assembly further includes an adhesive 30 located between the sealing strip body 12 and the radar cover 20, wherein the sealing strip body 12 is bonded to the radar cover 20 by the adhesive 30.

[0050] The adhesive component 30 can be an adhesive, double-sided adhesive strip, etc. When the adhesive component 30 is a double-sided adhesive strip, it has a first adhesive surface and a second adhesive surface. The first adhesive surface is bonded to the sealing strip body 12, and the second adhesive surface is bonded to the radar cover plate 20. When the sealing strip body 12 includes a main body segment 121 and a blocking segment 122, the first adhesive surface is bonded to the upper surface of the main body segment 121 facing the radar cover plate 20. In this embodiment, on the one hand, the fixing reliability of the sealing strip body 12 and the radar cover plate 20 can be guaranteed; on the other hand, the bonding fixing method has high sealing performance, which can effectively prevent moisture from seeping in from between the sealing strip body 12 and the radar cover plate 20.

[0051] In some embodiments, the radar cover assembly further includes a sealing foam 40, which is connected to the sealing strip body 12. The surface of the sealing foam 40 facing away from the sealing strip body 12 is used to press against the roof sheet metal. The sealing foam 40 surrounds the periphery of the radar cover 20. The sealing foam 40 can be bonded to the sealing strip body 12. When the sealing strip body 12 includes a main body segment 121 and a blocking segment 122, the sealing foam 40 is connected to the lower surface of the main body segment 121, and the sealing foam 40 is located on the side of the blocking segment 122 facing away from the self-lubricating sealing portion 11. In this embodiment, a double seal is formed by the sealing strip 10 and the sealing foam 40 to ensure sealing reliability.

[0052] Secondly, embodiments of this application provide a vehicle including a panoramic glass 50 and the radar cover assembly provided in the second aspect. The vehicle also includes a windshield, with the radar cover assembly located between the windshield and the panoramic glass 50 along the length of the vehicle.

[0053] The vehicle can be a sedan, commercial vehicle, SUV, sports utility vehicle, etc. It can be a gasoline-powered vehicle or a new energy vehicle, such as a pure electric vehicle or a hybrid vehicle.

[0054] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A sealing strip, characterized in that, The sealing strip is used to connect to the radar cover plate; The sealing strip includes a self-lubricating sealing part, which is made of a self-lubricating material and is used to press against the skylight glass. The self-lubricating seal is provided with a weakening portion, which penetrates the self-lubricating seal along its length.

2. The sealing strip according to claim 1, characterized in that, The weakened portion is a groove; The self-lubricating seal has a first surface for abutting against the skylight glass, and the groove includes a first groove formed on the first surface. The first surface has an overlapping area for abutting against the skylight glass, and at least a portion of the first groove is located in the overlapping area.

3. The sealing strip according to claim 2, characterized in that, The number of the first grooves is multiple, and the self-lubricating sealing part has a first end and a second end. The multiple first grooves are arranged at intervals in the direction from the first end to the second end.

4. The sealing strip according to claim 2, characterized in that, The self-lubricating seal also has a second surface opposite to the first surface, and the groove further includes a second groove formed on the second surface at one end away from the overlapping area.

5. The sealing strip according to any one of claims 1 to 4, characterized in that, The sealing strip also includes a sealing strip body; The sealing strip body has a width direction, and the self-lubricating sealing part is connected to one side of the sealing strip body along the width direction. The sealing strip body is used to connect with the radar cover plate. The material of the sealing strip body is different from that of the self-lubricating sealing part, and the self-lubricating sealing part and the sealing strip body are integrally formed.

6. The sealing strip according to any one of claims 1 to 4, characterized in that, The self-lubricating material is any one of self-lubricating thermoplastic elastomer, self-lubricating thermoplastic vulcanized rubber, and self-lubricating EPDM rubber.

7. A radar cover assembly, characterized in that, It includes a radar cover and a sealing strip as described in any one of claims 1 to 6, wherein the sealing strip is connected to the radar cover.

8. The radar cover assembly according to claim 7, characterized in that, The radar cover assembly also includes an adhesive component located between the sealing strip body and the radar cover, wherein the sealing strip body is bonded to the radar cover by the adhesive component.

9. The radar cover assembly according to claim 7, characterized in that, The radar cover assembly also includes sealing foam, which is connected to the sealing strip body in the sealing strip. The surface of the sealing foam facing away from the sealing strip body is used to press against the roof sheet metal.

10. A vehicle, characterized in that, Includes a canopy glass and a radar cover assembly as described in any one of claims 7 to 9.

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