A sealing structure for a vehicle-mounted radar and a vehicle-mounted radar

Abstract

The application relates to the technical field of electronic equipment sealing, and relates to a sealing structure for a vehicle-mounted radar and the vehicle-mounted radar. The sealing structure comprises a mounting base body, a cover body, an elastic sealing structure and a sealing reinforcing structure. The mounting base body has a containing cavity, a sealing cavity in communication with the external environment and a force receiving part. The containing cavity is used for containing electronic devices. The sealing cavity is in communication with the containing cavity. The force receiving part is arranged on the cavity wall of the sealing cavity. The cover body is used for closing the communication opening between the sealing cavity and the containing cavity. The elastic sealing structure is arranged in the sealing cavity and is sleeved on the outer circumferential surface of the cover body. The elastic sealing structure has a sealing reinforcing ring arranged around the communication opening between the sealing cavity and the containing cavity. The sealing reinforcing ring is sealingly attached to the force receiving part along with the assembly action of the elastic sealing structure. The sealing reinforcing structure is assembled in the sealing cavity. The sealing reinforcing structure has a first force applying part. The first force applying part abuts against the sealing reinforcing ring along with the assembly action of the sealing reinforcing structure, and the force receiving part and the first force applying part jointly clamp the sealing reinforcing ring. The sealing reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of electronic device sealing technology, and more particularly to a sealing structure for vehicle-mounted radar and the vehicle-mounted radar. Background Technology

[0002] The vehicle-mounted radar sealing structure is used to form a continuous isolation barrier between the inside of the radar housing and the external environment to prevent harmful substances such as water, dust, and salt spray from entering, thus ensuring the reliable operation of the internal electronic components.

[0003] Chinese utility model CN214310878U discloses an ultrasonic sensor and a reversing radar having the same. The sensor achieves sealing by using multiple silicone ribs on a sealing and shock-absorbing sleeve that are press-fitted with the inner wall of the housing and the outer wall of the sensor head. However, when the silicone ribs fail due to assembly scratches, embedded impurities, or local deformation, leakage channels are directly formed, resulting in insufficient sealing reliability. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a sealing structure for vehicle radar and vehicle radar, which improves the reliability of sealing.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A sealed structure for vehicle-mounted radar, comprising:

[0007] The mounting base has a receiving cavity, a sealing cavity, and a load-bearing part; the receiving cavity is used to receive electronic devices; the sealing cavity is connected to the receiving cavity and is connected to the external environment so that the electronic devices can be assembled into the receiving cavity through the sealing cavity; the load-bearing part surrounds the cavity wall of the sealing cavity;

[0008] A cover body, which is placed inside the sealing cavity, and is used to close the opening connecting the sealing cavity and the receiving cavity;

[0009] An elastic sealing structure is placed inside the sealing cavity and sleeved on the outer circumferential surface of the cover; the elastic sealing structure has a sealing reinforcing ring, which surrounds the opening connecting the sealing cavity and the receiving cavity; the sealing reinforcing ring seals and fits against the load-bearing part during the assembly movement of the elastic sealing structure;

[0010] A sealing reinforcement structure is assembled inside the sealing cavity; the sealing reinforcement structure has a first force-applying part, which abuts against the sealing reinforcement ring in the direction toward the force-bearing part as the sealing reinforcement structure is assembled, and together with the force-bearing part, clamps the sealing reinforcement ring.

[0011] Furthermore, one end of the elastic sealing structure facing the accommodating cavity is sealed and fitted to the bottom of the sealing cavity; the bottom of the sealing cavity is provided with a plurality of interlocking parts, each of the interlocking parts being spaced apart around the communication opening between the sealing cavity and the accommodating cavity; the interlocking parts are embedded into the elastic sealing structure as the elastic sealing structure fits against the bottom of the sealing cavity.

[0012] Furthermore, the cover has a limiting flange surrounding the outer peripheral surface of the cover; the inner peripheral surface of the elastic sealing structure is correspondingly provided with a limiting groove; the limiting flange is sealed and embedded in the limiting groove, and the projection of the limiting flange toward the bottom of the sealing cavity covers each of the engagement portions.

[0013] Furthermore, the elastic sealing structure has a force transmission part, which is disposed between the limiting flange and the sealing reinforcement structure and extends circumferentially along the limiting flange; the sealing reinforcement structure is correspondingly provided with a second force application part, which applies a clamping force to the force transmission part as the sealing reinforcement structure is assembled, and the force transmission part transmits the clamping force it receives to the limiting flange.

[0014] Furthermore, the second force-applying part is a force-applying groove, the inner wall of the force-applying groove abuts against the force-transmitting part, and the inner wall of the force-applying groove is adapted to the outer contour of the force-transmitting part.

[0015] Furthermore, the elastic sealing structure is made of liquid silicone.

[0016] Furthermore, the load-bearing part has a load-bearing surface, which smoothly and continuously transitions to the inner wall of the sealing cavity; the end face of the sealing reinforcing ring facing the load-bearing part is adapted to the load-bearing surface and is sealed and fitted with the load-bearing surface; the first force-applying part has a force-applying surface, and the end face of the sealing reinforcing ring facing the first force-applying part is adapted to the force-applying surface and is sealed and fitted with the force-applying surface.

[0017] Furthermore, when the first force-applying part abuts against the sealing reinforcement ring in the direction toward the force-bearing part during the assembly action of the sealing reinforcement structure, and together with the force-bearing part clamps the sealing reinforcement ring, the force-applying surface and the force-bearing surface approach each other to become adjacent.

[0018] Furthermore, the sealing reinforcement ring is disposed around the outer peripheral surface of the elastic sealing structure, and the thickness of the sealing reinforcement ring is less than 1 / 5 of the height of the elastic sealing structure.

[0019] Furthermore, the load-bearing surface is an inclined surface, which extends obliquely toward the opening of the sealing cavity, and the high end of the load-bearing surface is positioned toward the receiving cavity.

[0020] Furthermore, the sealing reinforcement structure is sleeved on the cavity wall of the sealing cavity, and the inner circumferential surface of the sealing reinforcement structure abuts against the elastic sealing structure;

[0021] The sealing reinforcement structure is provided with multiple snap-fit ​​parts, which are equally spaced along the circumference of the sealing reinforcement structure; the outer circumference of the mounting base is provided with a snap-fit ​​groove corresponding to each snap-fit ​​part, and the snap-fit ​​groove is connected to the sealing cavity; the snap-fit ​​part engages with the corresponding snap-fit ​​groove during the installation and assembly of the sealing reinforcement structure.

[0022] Furthermore, the mounting base is provided with multiple positioning grooves, each of which is located around the opening of the sealing cavity and is respectively arranged between two adjacent card-feeding grooves; the sealing reinforcement structure is provided with positioning parts corresponding to each positioning groove, and the positioning parts are slidably embedded in the positioning grooves during the fitting and assembly of the sealing reinforcement structure; when each positioning part is aligned with the corresponding positioning groove, each card-feeding part is simultaneously aligned with the corresponding card-feeding groove.

[0023] Furthermore, the sealing structure for vehicle-mounted radar also includes a press-fit seal, which is sleeved on the outer peripheral surface of the cover; one end of the press-fit seal facing the sealing cavity abuts against the periphery of the opening of the sealing cavity and abuts against each of the positioning portions.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] The mounting base comprises a receiving cavity, a sealing cavity, and a load-bearing portion. The receiving cavity is used to house electronic devices. The sealing cavity is connected to the receiving cavity and is also connected to the external environment, allowing electronic devices to be assembled into the receiving cavity through the sealing cavity. The load-bearing portion surrounds the cavity wall of the sealing cavity. A cover is placed inside the sealing cavity and is used to seal the opening connecting the sealing cavity and the receiving cavity. This separates the assembly area of ​​the electronic device from the sealing area, preventing scratches on the sealing mating surfaces within the sealing area during the assembly process. The cover provides a basic seal for the opening connecting the sealing cavity and the receiving cavity, providing a carrier for the subsequent arrangement of the elastic sealing structure and helping to improve the reliability of the seal.

[0026] The elastic sealing structure is placed inside the sealing cavity and fitted onto the outer circumferential surface of the cover. The elastic sealing structure has a sealing reinforcement ring, which surrounds the opening connecting the sealing cavity and the receiving cavity. The sealing reinforcement ring seals against the load-bearing part during the assembly of the elastic sealing structure. This utilizes the elastic deformation capability of the elastic sealing structure itself to fill the assembly gap between the cover and the inner wall of the sealing cavity. The sealing reinforcement ring can form a reinforced sealing band at the opening connecting the sealing cavity and the receiving cavity, and form a continuous sealing interface with the load-bearing part, thereby improving the reliability of the seal.

[0027] The sealing reinforcement structure is assembled within the sealing cavity. The sealing reinforcement structure has a first force-applying part, which, during the assembly of the sealing reinforcement structure, abuts against the sealing reinforcement ring in the direction towards the force-bearing part, and together with the force-bearing part, clamps the sealing reinforcement ring. Thus, through the clamping action of the first force-applying part and the force-bearing part, a uniform and continuous compressive force is applied to the sealing reinforcement ring, effectively offsetting the attenuation of sealing pressure caused by material aging and vehicle vibration after long-term use of the elastic sealing structure. Simultaneously, the bidirectional clamping force method allows for more uniform compression deformation of the sealing reinforcement ring, reducing the generation of local sealing gaps and further improving the reliability of the seal. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a sealing structure for vehicle-mounted radar according to the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram showing the disassembled components of the middle cover, elastic sealing structure, sealing reinforcement structure, and press-fit sealing element;

[0030] Figure 3 for Figure 1 Full sectional view;

[0031] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0032] In the diagram: 1. Mounting base; 11. Receiving cavity; 12. Sealing cavity; 121. Engaging part; 13. Load-bearing part; 131. Load-bearing surface; 14. Snap-fit ​​groove; 15. Positioning groove; 2. Cover; 21. Limiting flange; 3. Elastic sealing structure; 31. Sealing reinforcement ring; 32. Limiting groove; 33. Force transmission part; 4. Sealing reinforcement structure; 41. First force-applying part; 411. Force-applying surface; 42. Second force-applying part; 421. Force-applying groove; 43. Snap-fit ​​part; 44. Positioning part; 5. Press-fit sealing element. Detailed Implementation

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] See Figures 1-3 The specific implementation of a preferred embodiment of the present invention is as follows: A sealing structure for vehicle-mounted radar includes: a mounting base 1, a cover 2, an elastic sealing structure 3, and a sealing reinforcement structure 4.

[0037] The mounting base 1 has a receiving cavity 11, a sealing cavity 12, and a load-bearing part 13; the receiving cavity 11 is used to receive electronic devices; the sealing cavity 12 is connected to the receiving cavity 11 and is connected to the external environment, so that electronic devices can be assembled into the receiving cavity 11 through the sealing cavity 12; the load-bearing part 13 surrounds the cavity wall of the sealing cavity 12.

[0038] The cover 2 is placed inside the sealing cavity 12, and the cover 2 is used to close the opening connecting the sealing cavity 12 and the receiving cavity 11;

[0039] The elastic sealing structure 3 is placed inside the sealing cavity 12 and sleeved on the outer peripheral surface of the cover 2; the elastic sealing structure 3 has a sealing reinforcing ring 31, which surrounds the opening between the sealing cavity 12 and the receiving cavity 11; the sealing reinforcing ring 31 is sealed and fitted to the load-bearing part 13 during the assembly of the elastic sealing structure 3.

[0040] The sealing reinforcement structure 4 is assembled in the sealing cavity 12; the sealing reinforcement structure 4 has a first force-applying part 41, which abuts against the sealing reinforcement ring 31 in the direction toward the force-bearing part 13 as the sealing reinforcement structure 4 is assembled, and together with the force-bearing part 13, clamps the sealing reinforcement ring 31.

[0041] In use, the electronic components are first assembled into the receiving cavity 11 of the mounting base 1; then the cover 2 is placed into the sealing cavity 12, so that the cover 2 closes the opening connecting the sealing cavity 12 and the receiving cavity 11, forming a basic seal for the receiving cavity 11; next, the elastic sealing structure 3 is sleeved on the outer circumferential surface of the cover 2, and the elastic sealing structure 3 is pressed into the sealing cavity 12 as a whole; during the assembly process of the elastic sealing structure 3, the elastic sealing structure 3 itself undergoes elastic deformation, filling the tiny assembly gap between the outer circumferential surface of the cover 2 and the inner wall of the sealing cavity 12, as well as the assembly gap between the inner circumferential surface of the elastic sealing structure 3 and the outer circumferential surface of the cover 2; at the same time, the bottom of the sealing reinforcing ring 31 on the elastic sealing structure 3 undergoes assembly movement and bears force. The sealing part 13 is sealed and fitted. Since the load-bearing part 13 is continuously arranged circumferentially along the inner wall of the sealing cavity 12, the sealing reinforcing ring 31 is tightly fitted with the load-bearing part 13, and its outer circumferential surface is also fitted with the inner wall of the sealing cavity 12, forming a continuous sealing interface around the opening connecting the sealing cavity 12 and the accommodating cavity 11. Finally, the sealing reinforcing structure 4 is assembled into the sealing cavity 12. During the assembly process of the sealing reinforcing structure 4, the first force-applying part 41 on the sealing reinforcing structure 4 gradually abuts against the sealing reinforcing ring 31 and clamps the sealing reinforcing ring 31 together with the load-bearing part 13. Under the action of bidirectional clamping force, the sealing reinforcing ring 31 produces uniform elastic deformation, and the fit with the load-bearing part 13 and the inner wall of the sealing cavity 12 is even tighter.

[0042] Obviously, the mounting base 1 has a receiving cavity 11, a sealing cavity 12, and a load-bearing part 13; the receiving cavity 11 is used to receive electronic devices; the sealing cavity 12 is connected to the receiving cavity 11 and is connected to the external environment, so that electronic devices can be assembled into the receiving cavity 11 through the sealing cavity 12; the load-bearing part 13 surrounds the cavity wall of the sealing cavity 12; the cover 2 is placed inside the sealing cavity 12, and the cover 2 is used to close the communication opening between the sealing cavity 12 and the receiving cavity 11; thereby connecting the assembly area of ​​the electronic device with the sealing cavity 11. The areas are separated to avoid scratching the sealing surfaces within the sealing area during electronic component assembly; the cover 2 can form a basic seal for the opening connecting the sealing cavity 12 and the receiving cavity 11, providing a carrier for the subsequent arrangement of the elastic sealing structure 3, which helps to improve the reliability of the seal; the elastic sealing structure 3 is placed inside the sealing cavity 12 and sleeved on the outer circumferential surface of the cover 2; the elastic sealing structure 3 has a sealing reinforcing ring 31, which surrounds the opening connecting the sealing cavity 12 and the receiving cavity 11; the sealing reinforcing ring 31 follows... The assembly action of the elastic sealing structure 3 is to seal and fit with the load-bearing part 13; thereby utilizing the elastic deformation capability of the elastic sealing structure 3 itself to fill the assembly gap between the cover 2 and the inner wall of the sealing cavity 12; the sealing reinforcement ring 31 can form a reinforced sealing strip at the opening connecting the sealing cavity 12 and the receiving cavity 11, and fit with the load-bearing part 13 to form a continuous sealing interface, improving the reliability of the seal; based on the sealing reinforcement structure 4 assembled in the sealing cavity 12; the sealing reinforcement structure 4 has a first force-applying part 41, the first force-applying part 41 follows the sealing reinforcement structure The assembly action of 4 abuts against the sealing reinforcement ring 31 in the direction toward the load-bearing part 13, and together with the load-bearing part 13, clamps the sealing reinforcement ring 31; thereby, through the clamping action of the first force-applying part 41 and the load-bearing part 13, a uniform and continuous clamping force is applied to the sealing reinforcement ring 31, which can effectively offset the attenuation of sealing pressure caused by material aging and vehicle driving vibration after long-term use of the elastic sealing structure 3; at the same time, the bidirectional clamping force method can make the compression deformation of the sealing reinforcement ring 31 more uniform, reduce the generation of local sealing gaps, and further improve the reliability of the seal.

[0043] See Figure 2 , Figure 4 In this embodiment, in order to more effectively improve the reliability of the seal, preferably, one end of the elastic sealing structure 3 facing the accommodating cavity 11 is sealed and fitted to the bottom of the sealing cavity 12; the bottom of the sealing cavity 12 is provided with a plurality of interlocking parts 121, and each interlocking part 121 is spaced apart around the communication opening between the sealing cavity 12 and the accommodating cavity 11; the interlocking part 121 is embedded into the elastic sealing structure 3 as the elastic sealing structure 3 is fitted to the bottom of the sealing cavity 12.

[0044] The protruding interlocking part 121 is embedded inside the elastic sealing structure 3 to form a mechanical interlocking connection, which increases the effective contact area between the elastic sealing structure 3 and the bottom of the sealing cavity 12. This effectively prevents the elastic sealing structure 3 from radially shifting relative to the opening of the sealing cavity 12 and the receiving cavity 11, and avoids moisture from seeping into the receiving cavity 11 from the bottom gap.

[0045] See Figure 2 , Figure 3 Furthermore, the cover 2 has a limiting flange 21, which surrounds the outer peripheral surface of the cover 2; the inner peripheral surface of the elastic sealing structure 3 is correspondingly provided with a limiting groove 32; the limiting flange 21 is sealed and embedded in the limiting groove 32, and the projection of the limiting flange 21 toward the bottom of the sealing cavity 12 covers each of the interlocking portions 121.

[0046] The limiting flange 21 surrounding the outer circumference of the cover 2 and the limiting groove 32 opened on the inner circumference of the elastic sealing structure 3 form a concave-convex fit, which increases the radial and axial sealing contact area between the cover 2 and the elastic sealing structure 3. At the same time, it realizes the mutual positioning between the elastic sealing structure 3 and the cover 2, preventing the cover 2 and the elastic sealing structure 3 from axially moving and causing sealing failure. In addition, the projection of the limiting flange 21 covers each engagement part 121, which can evenly transmit the pressing force transmitted from above to the sealing area corresponding to the engagement part 121, ensuring that each engagement part 121 can be fully embedded in the elastic sealing structure 3, and strengthening the sealing effect at the bottom.

[0047] Furthermore, the elastic sealing structure 3 has a force transmission part 33, which is disposed between the limiting flange 21 and the sealing reinforcement structure 4 and extends circumferentially along the limiting flange 21; the sealing reinforcement structure 4 is correspondingly provided with a second force application part 42, which applies a clamping force to the force transmission part 33 as the sealing reinforcement structure 4 is assembled, and the force transmission part 33 transmits the clamping force it receives to the limiting flange 21.

[0048] The force transmission part 33 converts the axial clamping force applied by the second force application part 42 into a uniform clamping force towards the limiting flange 21, so that each inner groove wall of the limiting groove 32 can be tightly fitted with the limiting flange 21 under the action of the clamping force, thereby eliminating the weak sealing points between the limiting groove 32 and the limiting flange 21.

[0049] Furthermore, the second force-applying part 42 is a force-applying groove 421, the inner wall of the force-applying groove 421 abuts against the force-transmitting part 33, and the inner wall of the force-applying groove 421 is adapted to the outer contour of the force-transmitting part 33.

[0050] By engaging the force-applying groove 421 with the force-transmitting part 33, the contact area between the two is increased, making the transmission of the clamping force more stable and uniform. At the same time, the force-applying groove 421 can form a radial limit on the force-transmitting part 33, preventing radial movement of the elastic sealing structure 3 during use and further maintaining the stability of the seal.

[0051] See Figure 4 Preferably, the force transmission part 33 is a circular ring structure, and the force application groove 421 is an arc-shaped groove that matches the outer contour of the force transmission part 33. Through the structure of the circular ring force transmission part 33 extending continuously along the circumference of the limiting flange 21, the clamping force can be transmitted uninterruptedly to the entire circumference of the limiting flange 21. At the same time, the arc-shaped groove fits the entire circumference of the circular ring force transmission part 33, increasing the effective contact area between the two and making the transmission of clamping force more uniform.

[0052] Furthermore, the elastic sealing structure 3 is made of liquid silicone.

[0053] The excellent elastic deformation capability of liquid silicone after curing allows it to produce uniform and sufficient elastic deformation under pressure, tightly filling the tiny gaps between the sealing surfaces and ensuring that the sealing interfaces always remain tightly fitted.

[0054] Furthermore, the load-bearing part 13 has a load-bearing surface 131, which smoothly and continuously transitions to the inner wall of the sealing cavity 12; the end face of the sealing reinforcing ring 31 facing the load-bearing part 13 is adapted to the load-bearing surface 131 and is sealed and fitted with the load-bearing surface 131; the first force-applying part 41 has a force-applying surface 411, and the end face of the sealing reinforcing ring 31 facing the first force-applying part 41 is adapted to the force-applying surface 411 and is sealed and fitted with the force-applying surface 411.

[0055] The smooth and continuous transition between the bearing surface 131 and the inner wall of the sealing cavity 12 allows the outer ring surface of the sealing reinforcing ring 31 to simultaneously fit with both the bearing surface 131 and the inner wall of the sealing cavity 12, forming a continuous and uninterrupted sealing interface. This effectively reduces the generation of sealing gaps and improves the integrity of the seal.

[0056] Furthermore, when the first force-applying part 41 abuts against the sealing reinforcement ring 31 in the direction toward the force-bearing part 13 during the assembly action of the sealing reinforcement structure 4, and together with the force-bearing part 13 clamps the sealing reinforcement ring 31, the force-applying surface 411 and the force-bearing surface 131 approach each other to become adjacent.

[0057] The fact that the force-applying surface 411 and the load-bearing surface 131 approach each other to a close proximity indicates that the gaps between the sealing reinforcing ring 31 and the force-applying surface 411, and between the sealing reinforcing ring 31 and the load-bearing surface 131, are extremely small and maintain a tight fit. This effectively blocks the path of water vapor penetration from the gaps between the sealing reinforcing ring 31 and the force-applying surface 411, and between the sealing reinforcing ring 31 and the load-bearing surface 131, further improving the reliability of the seal.

[0058] See Figure 3 Furthermore, the sealing reinforcement ring is disposed around the outer peripheral surface of the elastic sealing structure, and the thickness of the sealing reinforcement ring is less than 1 / 5 of the height of the elastic sealing structure.

[0059] The thin sealing reinforcing ring provides uniform circumferential constraint to the elastic sealing structure, preventing excessive radial bulging deformation and sealing failure under pressure, while also allowing for normal axial elastic deformation. Simultaneously, the thin sealing reinforcing ring's smaller axial compression allows the clamping force between the first force-applying part and the force-bearing part to act more directly on the sealing reinforcing ring, ensuring effective force application between the force-applying and force-bearing surfaces. This allows the force-applying and force-bearing surfaces to approach each other, effectively eliminating the clamping gap between the force-applying surface, the sealing reinforcing ring, and the force-bearing surface.

[0060] Furthermore, the load-bearing surface is an inclined surface, which extends obliquely toward the opening of the sealing cavity, and the high end of the load-bearing surface is positioned toward the receiving cavity.

[0061] By designing the load-bearing surface as an inclined plane, the axial clamping force applied by the first force-applying part can be converted into a radial component force, driving the sealing reinforcement ring and the elastic sealing structure to press synchronously towards the inner wall of the sealing cavity, further eliminating the radial sealing gap; at the same time, the inclined plane can play a guiding role in the assembly process of the sealing reinforcement ring, guiding the sealing reinforcement ring to slide smoothly into the preset sealing position, avoiding misalignment during assembly that could lead to sealing failure.

[0062] See Figures 1-3 Furthermore, the sealing reinforcement structure 4 is sleeved on the cavity wall of the sealing cavity 12, and the inner circumferential surface of the sealing reinforcement structure 4 abuts against the elastic sealing structure 3;

[0063] The sealing reinforcement structure 4 is provided with a plurality of snap-fit ​​parts 43, which are equally spaced along the circumference of the sealing reinforcement structure 4; the outer circumferential surface of the mounting base 1 is provided with a snap-fit ​​groove 14 corresponding to each snap-fit ​​part 43, and the snap-fit ​​groove 14 is connected to the sealing cavity 12; the snap-fit ​​part 43 engages with the corresponding snap-fit ​​groove 14 during the fitting and assembly of the sealing reinforcement structure 4.

[0064] The assembly method of the sleeve makes the installation of the sealing reinforcement structure 4 more convenient; at the same time, the multiple equally spaced snap-fit ​​parts 43 and snap-fit ​​grooves provide uniform axial fixing force for the sealing reinforcement structure 4, preventing the sealing reinforcement structure 4 from loosening during use, and ensuring that the first force-applying part 41 and the second force-applying part 42 can continuously apply pressure to the elastic sealing structure 3; in addition, the inner peripheral surface of the sealing reinforcement structure 4 abuts against the outer peripheral surface of the elastic sealing structure 3, which can form uniform radial support on the outer peripheral surface of the elastic sealing structure 3, and help the elastic sealing structure 3 to form a tighter fit with the inner wall of the sealing cavity 12 and the outer peripheral surface of the cover 2, respectively, further eliminating radial sealing gaps.

[0065] Furthermore, the mounting base 1 is provided with a plurality of positioning grooves 15, each of which is located around the opening of the sealing cavity 12 and is respectively arranged between two adjacent card supply grooves 14; the sealing reinforcement structure 4 is provided with a positioning part 44 corresponding to each of the positioning grooves 15, and the positioning part 44 is slidably embedded in the positioning groove 15 during the fitting and assembly action of the sealing reinforcement structure 4; when each of the positioning parts 44 is aligned with the corresponding positioning groove 15, each of the card supply grooves 43 is simultaneously aligned with the corresponding card supply groove 14.

[0066] The sliding engagement between the positioning part 44 and the positioning groove 15 provides effective guidance for the assembly of the sealing reinforcement structure 4, ensuring that each snap-fit ​​part 43 can be accurately aligned with the corresponding snap-fit ​​groove, thus improving assembly efficiency and preventing damage caused by misalignment of the snap-fit ​​parts 43 during assembly. At the same time, after the positioning part 44 is embedded in the positioning groove 15, it can form a circumferential limit on the sealing reinforcement structure 4, preventing the sealing reinforcement structure 4 from rotating circumferentially during use, ensuring the stability of the force application positions of the first force application part 41 and the second force application part 42, so as to maintain a uniform sealing pressure.

[0067] Furthermore, the sealing structure for vehicle-mounted radar also includes a pressure sealing member 5, which is sleeved on the outer peripheral surface of the cover 2; one end of the pressure sealing member 5 facing the sealing cavity 12 abuts against the periphery of the opening of the sealing cavity 12 and abuts against each of the positioning parts 44.

[0068] By forming a seal at the opening of the sealing cavity 12 through the pressure sealing element 5, most of the external moisture, dust and mud can be blocked from entering the interior of the sealing cavity 12, protecting the internal elastic sealing structure 3 and sealing reinforcement structure 4 from the erosion of external pollutants; at the same time, the pressure sealing element 5 abuts against each positioning part 44, which can form an axial compression on the positioning part 44, preventing the positioning part 44 from falling out of the positioning groove 15, thus improving the reliability of the overall sealing structure.

[0069] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0071] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sealing structure for vehicle-mounted radar, characterized in that, include: The mounting base (1) has a receiving cavity (11), a sealing cavity (12), and a load-bearing part (13); the receiving cavity (11) is used to receive electronic devices; the sealing cavity (12) is connected to the receiving cavity (11) and is connected to the external environment so that electronic devices can be assembled into the receiving cavity (11) through the sealing cavity (12); the load-bearing part (13) surrounds the cavity wall of the sealing cavity (12); The cover (2) is placed inside the sealing cavity (12), and the cover (2) is used to close the opening connecting the sealing cavity (12) and the receiving cavity (11); An elastic sealing structure (3) is placed inside the sealing cavity (12) and sleeved on the outer circumferential surface of the cover (2); the elastic sealing structure (3) has a sealing reinforcing ring (31), which surrounds the opening between the sealing cavity (12) and the receiving cavity (11); the sealing reinforcing ring (31) seals against the load-bearing part (13) during the assembly of the elastic sealing structure (3); A sealing reinforcement structure (4) is assembled in the sealing cavity (12); the sealing reinforcement structure (4) has a first force-applying part (41), the first force-applying part (41) abuts against the sealing reinforcement ring (31) in the direction toward the force-bearing part (13) as the sealing reinforcement structure (4) is assembled, and together with the force-bearing part (13) clamps the sealing reinforcement ring (31). The sealing reinforcing ring (31) is disposed around the outer peripheral surface of the elastic sealing structure (3), and the thickness of the sealing reinforcing ring (31) is less than 1 / 5 of the height of the elastic sealing structure (3); The sealing reinforcement structure (4) is sleeved on the cavity wall of the sealing cavity (12), and the inner circumferential surface of the sealing reinforcement structure (4) abuts against the elastic sealing structure (3). The sealing reinforcement structure (4) is provided with multiple snap-fit ​​parts (43), and the multiple snap-fit ​​parts (43) are equally spaced along the circumference of the sealing reinforcement structure (4); the outer peripheral surface of the mounting base (1) is provided with a snap-fit ​​groove (14) corresponding to each snap-fit ​​part (43), and the snap-fit ​​groove (14) is connected to the sealing cavity (12); the snap-fit ​​part (43) engages with the corresponding snap-fit ​​groove (14) during the fitting and assembly of the sealing reinforcement structure (4); The cover (2) has a limiting flange (21) surrounding the outer circumferential surface of the cover (2); the inner circumferential surface of the elastic sealing structure (3) is provided with a limiting groove (32); the limiting flange (21) is sealed and embedded in the limiting groove (32).

2. The sealing structure for vehicle-mounted radar according to claim 1, characterized in that, The end of the elastic sealing structure (3) facing the accommodating cavity (11) is sealed and fitted to the bottom of the sealing cavity (12); the bottom of the sealing cavity (12) is provided with a plurality of interlocking parts (121), and each interlocking part (121) is spaced apart around the communication opening between the sealing cavity (12) and the accommodating cavity (11); the interlocking part (121) is embedded into the elastic sealing structure (3) as the elastic sealing structure (3) and the bottom of the sealing cavity (12) are fitted together.

3. A sealing structure for vehicle-mounted radar according to claim 2, characterized in that, The projection of the limiting flange (21) toward the bottom of the sealing cavity (12) covers each of the engagement portions (121).

4. A sealing structure for vehicle-mounted radar according to claim 3, characterized in that, The elastic sealing structure (3) has a force transmission part (33), which is arranged between the limiting flange (21) and the sealing reinforcement structure (4) and extends along the circumference of the limiting flange (21); the sealing reinforcement structure (4) is provided with a second force application part (42), which applies a clamping force to the force transmission part (33) as the sealing reinforcement structure (4) is assembled, and the force transmission part (33) transmits the clamping force it receives to the limiting flange (21).

5. A sealing structure for vehicle-mounted radar according to claim 4, characterized in that, The second force-applying part (42) is a force-applying groove (421), the inner wall of the force-applying groove (421) abuts against the force-transmitting part (33), and the inner wall of the force-applying groove (421) is adapted to the outer contour of the force-transmitting part (33).

6. A sealing structure for vehicle-mounted radar according to claim 1, characterized in that, The elastic sealing structure (3) is made of liquid silicone.

7. A sealing structure for vehicle-mounted radar according to claim 1, characterized in that, The load-bearing part (13) has a load-bearing surface (131), which smoothly and continuously transitions to the inner wall of the sealing cavity (12); the end face of the sealing reinforcing ring (31) facing the load-bearing part (13) is adapted to the load-bearing surface (131) and is sealed and fitted with the load-bearing surface (131); the first force-applying part (41) has a force-applying surface (411), which is adapted to the force-applying surface (411) and is sealed and fitted with the force-applying surface (411).

8. A sealing structure for vehicle-mounted radar according to claim 7, characterized in that, When the first force-applying part (41) abuts against the sealing reinforcement ring (31) in the direction toward the force-bearing part (13) during the assembly action of the sealing reinforcement structure (4), and together with the force-bearing part (13) clamps the sealing reinforcement ring (31), the force-applying surface (411) and the force-bearing surface (131) approach each other to become adjacent.

9. A sealing structure for vehicle-mounted radar according to claim 8, characterized in that, The load-bearing surface (131) is an inclined surface, and the load-bearing surface (131) extends obliquely toward the opening of the sealing cavity (12), and the high end of the load-bearing surface (131) is set toward the receiving cavity (11).

10. A sealing structure for vehicle-mounted radar according to claim 1, characterized in that, The mounting base (1) has multiple positioning grooves (15), each positioning groove (15) is located around the opening of the sealing cavity (12) and is respectively arranged between two adjacent card receiving grooves (14); the sealing reinforcement structure (4) has a positioning part (44) corresponding to each positioning groove (15), the positioning part (44) is slidably embedded in the positioning groove (15) as the sealing reinforcement structure (4) is fitted and assembled; when each positioning part (44) is aligned with the corresponding positioning groove (15), each card receiving part (43) is simultaneously aligned with the corresponding card receiving groove (14).

11. A sealing structure for vehicle-mounted radar according to claim 10, characterized in that, The sealing structure for vehicle radar further includes a press-fit seal (5), which is fitted onto the outer peripheral surface of the cover (2); one end of the press-fit seal (5) facing the sealing cavity (12) abuts against the periphery of the opening of the sealing cavity (12) and abuts against each of the positioning parts (44).

12. A vehicle-mounted radar, characterized in that, The sealing structure for vehicle-mounted radar as described in any one of claims 1-11.

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