Sealing assembly and automobile rearview mirror adopting same
By installing a sealing assembly consisting of a sealing cover and a flexible sealing sleeve between the upper lens housing and the lens mount of the car rearview mirror, the wind noise problem caused by insufficient sealing is solved, and a sealing effect is achieved during high-speed driving, thus improving ride comfort.
Patent Information
- Application Number
- CN202423214130.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing rearview mirrors have insufficient sealing between the upper lens shell and the mirror base, which causes wind noise during vehicle operation and affects the comfort of the driver and passengers.
The sealing assembly consists of a sealing cover and a flexible sealing sleeve. The upper end face of the flexible sealing sleeve protrudes upward to form a rib. Combined with the connection structure of the sealing cover and the lens mount, the flexible sealing sleeve and the lens mount are tightly fitted and detachably connected to form a multi-layer seal to prevent external air from entering.
It effectively avoids wind noise during car driving, improves sealing and ride comfort, and the high elasticity and tear resistance of the flexible sealing sleeve ensure that it will not age with long-term use.
Smart Images
Figure CN223494407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the automotive field, specifically to a sealing component and a rearview mirror using the sealing component. Background Technology
[0002] Car side mirrors are essential components of automobiles, fixedly installed on both sides of the front of the vehicle body. They are used to observe the situation and obstacles behind the vehicle, playing a vital role in driving safety. Existing car side mirrors mainly consist of a mirror base, a mirror body, and a mirror body mounting shell. The mirror body mounting shell is mainly assembled from an upper mirror shell and a lower mirror shell. The lower mirror shell is arc-shaped, smaller than the upper mirror shell, and forms a mounting opening with the upper mirror shell to mate with the mirror base connection end. A rotating cover plate is fixedly installed on the mirror base connecting plate corresponding to the mounting opening. A connecting seat is provided inside the mirror base, with its connecting end penetrating through the rotating cover plate. Due to the large cavity inside the mirror body mounting shell, the sealing performance at the connection between the mirror base and the mirror body mounting shell is poor. At high speeds, wind noise can easily be generated between the rotating cover plate and the connecting seat, causing an unpleasant experience for the driver and passengers. Based on this, the applicant intends to improve the connection structure between the mounting port connecting plate and the mirror body assembly shell, and to set a sealing structure at the upper mirror shell to increase the sealing performance at the mounting port and avoid the generation of wind noise. Summary of the Invention
[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a sealing component and a car rearview mirror using the sealing component, so as to solve the problem that the sealing between the upper mirror shell and the mirror base of the car rearview mirror is not sufficient in the existing technology, which will generate wind noise during the car driving process and affect the comfort of the driver and passengers.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A sealing assembly includes a sealing cover and a flexible sealing sleeve covering the outer edge of the sealing cover. The flexible sealing sleeve has the same shape as the sealing cover, and its upper surface protrudes upwards at the center, forming a ring of ribs. Thus, the sealing assembly consists of a sealing cover and a flexible sealing sleeve, which covers the sealing cover to form a single unit. This creates a ring of seal around the outer edge of the sealing cover, allowing it to adhere to the outer edges of other products and form a seal, preventing external air from entering. The ribs formed on the upper surface of the flexible sealing sleeve create another ring of seal on the flexible sealing sleeve, improving the sealing performance in the thickness direction.
[0006] Furthermore, an inner extension portion is provided in the middle of the inner side of the flexible sealing sleeve, which fits against the upper surface of the sealing cover plate. Multiple connecting portions extending towards the center are spaced apart circumferentially on the inner extension portion, and each connecting portion has a protruding post. The sealing cover plate is placed below the inner extension portion, and multiple fixing holes corresponding to and cooperating with the protruding posts are provided on the sealing cover plate. In this way, the inner extension portion on the sealing sleeve forms a ring that fits against the upper surface of the sealing cover plate, forming a semi-enclosed structure together with the flexible sealing sleeve body. There are no gaps between them, ensuring a tight fit. Simultaneously, the protruding posts can be inserted into the fixing holes on the sealing cover plate, allowing for detachable connection and a tighter fit, preventing external air from entering from the outer edge of the sealing cover plate.
[0007] Furthermore, the flexible sealing sleeve is made of thermoplastic vulcanized rubber. In this way, thermoplastic vulcanized rubber has good elasticity and ductility, high strength, good tear resistance, and is not prone to aging after prolonged use.
[0008] A rearview mirror for automobiles includes a mirror base, a mirror body, and a mirror body mounting shell. The mirror body is installed inside the mirror body mounting shell, and the mirror base is connected to the mirror body mounting shell. The mirror body mounting shell includes an upper mirror shell and a lower mirror shell fixedly connected. The lower mirror shell is smaller than the upper mirror shell, and the lower mirror shell, after being connected to the upper mirror shell, forms a mounting opening that mates with the connecting end of the mirror base. The upper mirror shell has a mounting opening on the side where it connects to the mirror base. A sealing component is provided at the mounting opening, which mates with the upper mirror shell. The sealing component includes a sealing cover and a flexible sealing sleeve covering the outer edge of the sealing cover. The upper end face of the flexible sealing sleeve protrudes upwards in the middle, forming a ring of ribs, and the outer side of the flexible sealing sleeve is sealed to the mounting opening. The connecting end of the mirror base is in close contact with the side of the upper mirror shell and the ribs of the flexible sealing sleeve at the mounting opening. A connecting seat is provided inside the mirror base, inserted into the sealing cover and detachably connected to the motor housing of a folding motor inside the lower mirror shell. The mirror base is pressed and fixed at the mounting opening by the connecting seat. In this way, an assembly port is provided at the upper lens housing. After the lens mount is connected to the lens body assembly housing, external air can only be introduced through the assembly port. After the sealing component is installed at the assembly port, the sealing cover plate of the sealing component blocks the assembly port, and the flexible sealing sleeve covering the sealing cover plate fits snugly against the inner wall of the assembly port, forming a sealed connection. This prevents external air from entering the assembly port and generating wind noise. The protruding ribs on the sealing component abut against the corresponding side of the lens mount, fitting tightly together to form a seal on the connecting end face of the lens mount. Since the lens mount only has an opening formed by the connecting seat penetrating through it, and this opening is located in the middle of the lens mount and surrounded by the sealing ring formed by the protruding ribs, even during high-speed driving, no air will enter between the lens mount and the lens body assembly housing, effectively preventing wind noise. The connecting seat of the lens mount is fixedly connected to the motor housing inside the lens body assembly housing, which ensures that the lens mount and the lens body assembly housing are connected together while ensuring that the lens mount fits tightly against the protruding ribs on the flexible sealing sleeve, forming a seal. The ribs are formed by protrusions on the end face of the flexible sealing sleeve. They are thinner than the main body of the flexible sealing sleeve, allowing for better and tighter contact with the lens mount after deformation under pressure, thus creating a seal. The outer end face of the flexible sealing sleeve mates with the assembly opening to form an end face seal, while the upper end face and the ribs fit against the lens mount to form a seal. In other words, the outer and upper end faces of the flexible sealing sleeve can each form a seal, effectively preventing external air from entering the lens assembly housing.
[0009] Furthermore, both the flexible sealing sleeve and the sealing cover are fan-shaped. The flexible sealing sleeve has an inner extension in the middle for fitting against the upper surface of the sealing cover. Multiple connecting portions extending towards the center are spaced apart circumferentially on the inner extension, and each connecting portion has a protruding post. The sealing cover is placed below the inner extension and has multiple fixing holes that correspond one-to-one with the protruding posts. Thus, the fan-shaped sealing cover is less prone to displacement after installation. The flexible sealing sleeve, through the engagement of the protruding posts with the fixing holes on the sealing cover, forms a radial positioning in the circumferential direction, ensuring a tight fit with the sealing cover and preventing it from easily falling off.
[0010] Furthermore, the flexible sealing sleeve is made of thermoplastic vulcanized rubber, and the ribs are arc-shaped. This arc-shaped design allows the ribs to fit better against the mirror mount during compression, compared to a square shape.
[0011] Furthermore, a through hole corresponding to the end of the connecting seat is provided in the middle of the sealing cover plate. A sleeve portion perpendicular to and integrally formed with the sealing cover plate is provided along the outer edge of the through hole. The end of the connecting seat passes through the through hole of the sealing cover plate, fits into the sleeve portion, and is connected and fixed to the motor housing of the folding motor inside the lower mirror housing by screws. In this way, the through hole provided in the sealing cover plate allows the connecting seat to pass through and connect with the motor housing. The sleeve portion provided in the sealing cover plate can increase the contact surface between the connecting seat and the sealing cover plate, making the connecting seat more stable.
[0012] Furthermore, multiple reinforcing ribs are provided on the back of the sealing cover plate, which connect with the sleeve portion. In this way, the reinforcing ribs can effectively increase the strength of the sealing cover plate.
[0013] Furthermore, the sealing cover plate is provided with three threaded holes arranged in a triangle, and a positioning plate is also provided inside the mirror assembly housing. The sealing cover plate is fixedly connected to the positioning plate by fasteners. In this way, the sealing cover plate and the positioning plate are connected by fasteners and cooperate with the assembly port, making the overall structure stable and preventing displacement due to external forces. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the disassembled structure between the lens mount and the lens body assembly shell in the embodiment;
[0015] Figure 2 This is a three-dimensional structural diagram of the car rearview mirror in the embodiment;
[0016] Figure 3 This is a schematic diagram of the assembly structure of the sealing component in the embodiment;
[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the sealing cover and the flexible sealing sleeve in the embodiment. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0019] It should be noted that 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. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing this 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 this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances.
[0020] The rearview mirror provided in this embodiment includes a mirror base 2, a mirror body, and a mirror body mounting shell 1. The mirror body is installed inside the mirror body mounting shell 1, and the mirror base 2 is connected to the mirror body mounting shell 1. The mirror body mounting shell 1 includes an upper mirror shell 11 and a lower mirror shell 12 fixedly connected. The lower mirror shell 12 is smaller than the upper mirror shell 11, and after the lower mirror shell 12 is connected to the upper mirror shell 11, it forms a mounting opening that mates with the connecting end of the mirror base 2. There is a mounting opening on the side of the upper mirror shell 11 that mates with the mirror base 2. A sealing component is provided at the mounting opening, and the sealing component includes a sealing cover plate 4 and a flexible sealing sleeve 5 covering the outer edge of the sealing cover plate 4. The upper end of the flexible sealing sleeve 5... The center of the surface protrudes upward to form a ring of ribs 54, and the outer side of the flexible sealing sleeve 5 is sealed to the assembly port (specifically, the flexible sealing sleeve 5 and the assembly port are sealed after secondary injection molding; in specific implementation, adhesive sealing can also be used); the connecting end of the lens mount 2 is in close contact with the side of the upper lens shell 11 at the mounting port and the ribs 54 of the flexible sealing sleeve 5. Inside the lens mount 2, there is a connecting seat 21 that is inserted into the sealing cover plate 4 and is detachably connected to the motor shell of the folding motor 3 inside the lower lens shell 12 (after the screw passes through the connecting seat 21 and the lens mount 2, it is threadedly connected and fixed to the motor shell). The lens mount 2 is pressed and fixed at the mounting port by the connecting seat 21. In this way, an assembly port is provided at the upper lens housing 11. After the lens mount 2 is connected to the lens body assembly housing 1, external air can only be introduced through the assembly port. After the sealing component is installed at the assembly port, the sealing cover plate 4 of the sealing component blocks the assembly port, and the flexible sealing sleeve 5 covering the sealing cover plate 4 fits against the inner wall of the assembly port and forms a sealed connection, which can prevent external air from entering the assembly port and generating wind noise through the assembly port. The protruding rib 54 on the sealing component abuts against the corresponding side of the lens mount 2 and fits tightly together, forming a seal on the connecting end face of the lens mount 2. Since the lens mount 2 only has an opening formed by the connecting seat 21 passing through, and this opening is located in the middle of the lens mount 2 and is surrounded by the sealing ring formed by the protruding rib 54, even during high-speed driving, no air will enter between the lens mount 2 and the lens body assembly housing 1, which can effectively prevent the generation of wind noise. The connecting seat 21 of the lens mount 2 is fixedly connected to the motor housing inside the lens body assembly shell 1. This ensures that the lens mount 2 is connected to the lens body assembly shell 1 while also ensuring that the lens mount 2 can tightly fit against the protruding rib 54 on the flexible sealing sleeve 5, forming a seal. The protruding rib 54 is formed by the protrusion of the end face of the flexible sealing sleeve 5, and its thickness is smaller than that of the main body of the flexible sealing sleeve 5. After being deformed under pressure, it can better fit tightly against the lens mount 2, forming a seal for the lens mount 2. The outer end face of the flexible sealing sleeve 5 mates with the assembly port to form an end face seal, and the upper end face and the protruding rib 54 fit against the lens mount 2 to form a seal for the lens mount 2. That is, the outer end face and the upper end face of the flexible sealing sleeve 5 can form seals respectively, effectively preventing external air from entering the lens body assembly shell 1.
[0021] Specifically, in this embodiment, the mirror mount 2 includes a main housing and a sealing shell fastened to the main housing. The main housing consists of an inner side plate, a connecting base plate, and an outer end plate. The inner end of the connecting base plate is perpendicularly connected to the lower end of the inner side plate, and the outer end plate is connected between the inner side plate and the connecting base plate in an arc shape. The inner side plate is in contact with the side end of the lower mirror housing 12, and the inner end of the connecting base plate is in contact with the upper surface of the sealing assembly.
[0022] Furthermore, both the flexible sealing sleeve 5 and the sealing cover plate 4 are fan-shaped. The flexible sealing sleeve 5 has an inner extension 51 in its middle for fitting against the upper surface of the sealing cover plate 4. Multiple connecting portions 52 extending towards the center are spaced apart around the inner extension 51, and each connecting portion 52 has a protrusion 53. The sealing cover plate 4 is placed below the inner extension 51 and has multiple fixing holes 44 that correspond one-to-one with and cooperate with the protrusions 53. Thus, the fan-shaped design of the sealing cover plate 4 makes it less prone to displacement after installation. The flexible sealing sleeve 5, through the cooperation of the protrusions 53 and the fixing holes 44 on the sealing cover plate 4, forms a radial positioning in the circumferential direction, fitting tightly against the sealing cover plate 4 and preventing it from easily falling off.
[0023] Furthermore, the flexible sealing sleeve 5 is made of thermoplastic vulcanized rubber, and the rib 54 is arc-shaped. By making the rib 54 arc-shaped, it can better fit against the mirror base 2 during compression compared to a square shape.
[0024] Furthermore, a through hole 41 is provided in the middle of the sealing cover plate 4, which mates with the corresponding end of the connecting seat 21. A sleeve portion 42, perpendicular to the sealing cover plate 4 and integrally formed therewith, is provided along the outer edge of the through hole 41. The end of the connecting seat 21 passes through the through hole 41 of the sealing cover plate 4, is fitted into the sleeve portion 42, and is connected and fixed to the motor housing of the folding motor 3 inside the lower mirror housing 12 by screws. In this way, the through hole 41 provided on the sealing cover plate 4 allows the connecting seat 21 to pass through and connect with the motor housing. The sleeve portion 42 provided on the sealing cover plate 4 can increase the contact surface between the connecting seat 21 and the sealing cover plate 4, making the connecting seat 21 more stable.
[0025] Furthermore, multiple reinforcing ribs 43 are provided on the back of the sealing cover plate 4, which connect with the sleeve portion 42. In this way, the reinforcing ribs 43 can effectively increase the strength of the sealing cover plate 4.
[0026] Furthermore, the sealing cover plate 4 is provided with three threaded holes 45 arranged in a triangle, and a positioning plate is also provided inside the mirror body assembly shell 1. The sealing cover plate 4 is fixedly connected to the positioning plate by fasteners. In this way, the sealing cover plate 4 and the positioning plate are connected by fasteners and cooperate with the assembly port, so the overall structure is stable and will not shift due to external forces.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.
Claims
1. A sealing assembly, characterized in that, It includes a sealing cover plate and a flexible sealing sleeve covering the outer edge of the sealing cover plate. The flexible sealing sleeve has the same shape as the sealing cover plate, and the upper end face of the flexible sealing sleeve protrudes upward in the middle to form a ring of ribs.
2. The sealing assembly according to claim 1, characterized in that, An inner extension is provided in the middle of the inner side of the flexible sealing sleeve, which fits against the upper surface of the sealing cover plate. Multiple connecting parts extending towards the center are provided at intervals in the circumferential direction of the inner extension, and a protrusion is provided on each connecting part. The sealing cover plate is placed under the inner extension, and multiple fixing holes are provided on the sealing cover plate that correspond to and cooperate with the protrusions.
3. The sealing assembly according to claim 1 or 2, characterized in that, The flexible sealing sleeve is made of thermoplastic vulcanized rubber.
4. A rearview mirror for automobiles, comprising a mirror base, a mirror body, and a mirror body mounting shell, wherein the mirror body is installed within the mirror body mounting shell, and the mirror base is connected to the mirror body mounting shell; the mirror body mounting shell comprises an upper mirror shell and a lower mirror shell fixedly connected, the lower mirror shell being smaller than the upper mirror shell, and the lower mirror shell forming a mounting opening that mates with the connecting end of the mirror base after being connected to the upper mirror shell, characterized in that, There is an assembly port on the side where the upper lens housing connects to the lens mount. A sealing component is provided at the assembly port to cooperate with it. The sealing component includes a sealing cover plate and a flexible sealing sleeve covering the outer edge of the sealing cover plate. The upper end face of the flexible sealing sleeve protrudes upward in the middle to form a ring of ribs, and the outer side of the flexible sealing sleeve is sealed to the assembly port. The lens mount connecting end is in close contact with the side of the upper lens housing and the ribs of the flexible sealing sleeve at the mounting port. There is a connecting seat in the lens mount that is inserted into the sealing cover plate and is detachably connected to the motor housing of the folding motor in the lower lens housing. The lens mount is pressed and fixed at the mounting port by the connecting seat.
5. The automotive rearview mirror according to claim 4, characterized in that, Both the flexible sealing sleeve and the sealing cover are fan-shaped. The flexible sealing sleeve has an inner extension in the middle for fitting with the upper surface of the sealing cover. The inner extension has multiple connecting parts that extend towards the center at intervals in the circumferential direction. Each connecting part has a protruding post. The sealing cover is placed below the inner extension and has multiple fixing holes that correspond to and cooperate with the protruding posts.
6. The automotive rearview mirror according to claim 4 or 5, characterized in that, The flexible sealing sleeve is made of thermoplastic vulcanized rubber, and the convex rib is arc-shaped.
7. The automotive rearview mirror according to claim 6, characterized in that, A through hole is provided in the middle of the sealing cover plate, which matches the corresponding end of the connecting seat. A sleeve part is provided along the outer edge of the through hole, which is perpendicular to the sealing cover plate and integrally formed with it. The end of the connecting seat passes through the through hole of the sealing cover plate, is fitted into the sleeve part, and is fixed to the motor housing of the folding motor in the lower mirror housing by screws.
8. The automotive rearview mirror according to claim 7, characterized in that, On the back of the sealing cover, there are also several reinforcing ribs that connect with the sleeve.
9. The automotive rearview mirror according to claim 7 or 8, characterized in that, The sealing cover plate is also provided with three threaded holes arranged in a triangle. A positioning plate is also provided inside the mirror assembly shell. The sealing cover plate is fixedly connected to the positioning plate by fasteners.