Outside rear-view mirror and vehicle

By providing movable spoilers on the exterior rearview mirrors and adjusting their height using a drive mechanism, the problem of wind noise during high-speed driving is solved, thereby reducing wind noise and improving driver comfort.

CN223370728UActive Publication Date: 2025-09-23ZHANGJIAGANG GREAT WALL MOTOR R&D CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423067572.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-09-23
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing exterior rearview mirrors generate excessive wind noise when driving at high speeds, affecting the driver's comfort and concentration, causing fatigue and distraction.

Method used

A movable spoiler is provided on the housing of the exterior rearview mirror, and its protruding height is adjusted by a driving mechanism to disturb the airflow passing through the exterior rearview mirror and reduce wind noise.

Benefits of technology

It effectively reduces the wind noise level of the exterior rearview mirror from 94.6dB to 91.5dB, improving the driver's driving comfort. It also has a simple structure, low cost, and does not affect the appearance design.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223370728U_ABST
    Figure CN223370728U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of exterior rearview mirrors, and particularly provides an exterior rearview mirror and a vehicle. The outside rear-view mirror comprises a shell, a turbulent flow body arranged on the shell and a driving mechanism arranged in the shell. A mounting groove is formed in the shell, the turbulent flow body is movably arranged in the mounting groove, and the turbulent flow body can extend out of the shell through the mounting groove under the driving of the driving mechanism. According to the outside rear-view mirror, the spoiler body is arranged on the shell, the mounting groove is formed in the shell, the spoiler body is movably arranged in the mounting groove, the protruding height of the spoiler body extending out of the shell can be adjusted through driving of the driving mechanism, and airflow flowing through the outside rear-view mirror can be disturbed through the protruding spoiler body; the wind noise condition of the outside rear-view mirror is improved, and the driving comfort of a driver is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle exterior rearview mirrors, and in particular to an exterior rearview mirror. In addition, the utility model also relates to a vehicle. Background Art

[0002] Exterior mirrors, mounted on the sides of a vehicle, are crucial safety features. Their primary functions include providing rear-view visibility, assisting with lane changes and overtaking, and assisting with reverse parking. Exterior mirrors come in a variety of shapes and styles.

[0003] However, due to the position of the exterior rearview mirror, when the vehicle is traveling at high speed, the exterior rearview mirror will be affected by strong airflow. The conventional exterior rearview mirror shape design will generate large wind noise when the airflow passes through the surface of the exterior rearview mirror; excessive wind noise will exceed the acceptable range of the human ear and have adverse effects.

[0004] Continuous noise will affect the driver's comfort, especially during long-distance driving, which may make the driver feel tired; at the same time, noise may distract the driver, especially when driving at high speeds. This interference may make it difficult for the driver to concentrate on driving. Utility Model Content

[0005] In view of this, the present invention aims to provide an exterior rearview mirror to improve the wind noise generated by the exterior rearview mirror during vehicle driving.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] An exterior rearview mirror comprises a housing, a fluid turbulent body arranged on the housing, and a driving mechanism arranged in the housing; the housing is provided with a mounting groove, the fluid turbulent body is movably arranged in the mounting groove, and under the drive of the driving mechanism, the fluid turbulent body can protrude from the housing through the mounting groove.

[0008] Furthermore, the mounting groove is opened at the bottom of the shell, and the mounting groove is constructed as a long strip arranged parallel to the lens of the exterior rearview mirror; the spoiler is arranged in the shape of the mounting groove, can slide in the mounting groove, and can form a blockage for the mounting groove.

[0009] Furthermore, the shell includes an upper shell and a lower shell connected to each other, and a turn indicator light is provided between the upper shell and the lower shell.

[0010] Furthermore, the driving mechanism includes a motor disposed in the housing, and a transmission component connected between the motor and the fluid-disturbing body; as the motor rotates, the fluid-disturbing body can move up and down in the mounting groove.

[0011] Furthermore, a motor fixing seat is fixedly provided in the shell, and the motor is clamped on the motor fixing seat.

[0012] Furthermore, the transmission component includes a gear and a transmission rack that are meshed and connected, the gear is installed on the output shaft of the motor, and the transmission rack guide is arranged in the housing and is connected to the disruptor.

[0013] Furthermore, a guide groove is provided in the shell, and the transmission rack can be slidably guided up and down in the guide groove, and the bottom end of the transmission rack is connected to the disrupting body through a connecting rod.

[0014] Furthermore, the top end of the connecting rod is hinged to the transmission rack through a first pin, and the bottom end of the connecting rod is connected to the disruptor body through a second pin.

[0015] Furthermore, a connecting groove is provided in the middle of the disrupting body, and the second pin is slidably arranged in the connecting groove.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The exterior rearview mirror of the present invention is provided with a spoiler body on a shell, and the spoiler body is movably arranged in the mounting groove by utilizing the mounting groove provided on the shell. The protruding height of the spoiler body extending out of the shell can be adjusted by driving a driving mechanism. Compared with the existing exterior rearview mirror shell structure, either no spoiler rib structure is provided on the shell, or only a fixed protruding structure is formed on the shell to serve as a spoiler rib. The protruding height of the spoiler body of the present invention is adjustable. The protruding spoiler body can be used to turbulently generate airflow passing through the exterior of the exterior rearview mirror, and the protruding height of the spoiler body can be adjusted accordingly based on the external wind speed conditions to improve the spoiler effect, thereby effectively reducing the wind noise of the exterior rearview mirror and further improving the driving comfort of the driver.

[0018] Furthermore, the mounting slots are located at the bottom of the housing, aligning with the airflow distribution outside the housing. This effectively disrupts the airflow through areas of the housing that are prone to generating significant wind noise, thereby reducing the intensity of wind noise generated there. The housing's split structure facilitates the installation of internal components and the placement of the turn indicator lights between the lower and upper housings.

[0019] In addition, the motor drive allows for flexible control, with different forward and reverse control modes enabling the extension and retraction of the fluid-disturbing body within the mounting slot, making it easy to control and implement. The rack and pinion transmission structure effectively converts the motor's rotational motion into up-and-down motion, utilizing the up-and-down movement of the transmission rack to drive the fluid-disturbing body to slide within the mounting slot, enabling the extension and retraction of the fluid-disturbing body. This provides stable transmission performance and a compact overall transmission structure, making it easy to deploy within the confined space within the housing.

[0020] The use of a rack and pinion transmission structure effectively converts the motor's rotational motion into vertical movement. The vertical movement of the transmission rack drives the fluid-disturbing body to slide within the mounting groove, enabling the fluid-disturbing body to extend and retract. This provides stable transmission performance and a compact overall transmission structure, facilitating placement within the confined space within the housing. Another object of the present invention is to provide a vehicle equipped with the exterior rearview mirror described herein. The vehicle of this invention possesses the technical advantages of the aforementioned exterior rearview mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention. Terms such as front and back, top and bottom, etc., used therein are only intended to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the exterior rearview mirror according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the exterior rearview mirror according to an embodiment of the present utility model from another perspective;

[0024] Figure 3 This is a schematic structural diagram of the exterior rearview mirror according to an embodiment of the present invention, viewed from the rear and upper side;

[0025] Figure 4 for Figure 3 The structure diagram of the exterior rearview mirror shown is after the upper shell, lens frame and lens are hidden;

[0026] Figure 5 for Figure 4 A schematic structural diagram of each component shown in another perspective;

[0027] Figure 6 for Figure 4 A partial enlarged view of the part shown in A;

[0028] Figure 7 for Figure 5A partial enlarged view of the area shown in B.

[0029] Description of reference numerals:

[0030] 1. Housing; 10. Lower housing; 100. Mounting slot; 11. Upper housing; 12. Lens frame;

[0031] 2. Wiring harness; 20. Connector;

[0032] 3. Turn indicator light; 4. Lens; 5. Disturbing body; 50. Connecting slot;

[0033] 6. Driving mechanism; 60. Motor fixing base; 600. Clamping claw; 61. Motor; 62. Transmission component; 620. Transmission rack; 621. Support rod; 622. Teeth; 623. Gear; 624. Connecting rod; 625. First pin; 626. Second pin; 63. Guide groove; 7. Base. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] In the description of the present invention, it should be stated that if terms indicating directions or positional relationships such as "up, down, left, right, front, back, inside, outside" appear, they are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0036] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present invention are only used to distinguish similar features of different positions, affiliations or uses, so as to achieve the purpose of avoiding ambiguity and confusion, and cannot be understood as indicating or implying relative importance.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Example 1

[0039] This embodiment relates to an exterior rearview mirror that can improve the wind noise of the exterior rearview mirror during vehicle driving; an exemplary structure thereof is as follows Figures 1 to 4 shown.

[0040] Generally speaking, the exterior rearview mirror includes a housing 1, a spoiler 5 disposed on the housing 1, and a drive mechanism 6 disposed within the housing 1. The housing 1 is provided with a mounting slot 100, in which the spoiler 5 is movably disposed. Driven by the drive mechanism 6, the spoiler 5 can protrude from the housing 1 through the mounting slot 100.

[0041] It should be pointed out that, based on the above-mentioned overall design concept, the technical solution of the present utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned shell 1 can adopt an integral structure or a split structure; the driving mode, transmission structure, etc. of the driving mechanism 6 can also have a variety of different specific structural forms; the specific setting order, installation method, etc. of the disruptor body 5, driving mechanism 6, etc. on the shell 1 can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above-mentioned overall setting, reasonable and flexible design can be made with reference to the mature setting means in this field, the actual situation during implementation, etc. The specific implementation scheme described below in this embodiment is only one of the better solutions among the many solutions that can be formed by the above-mentioned various combinations and their variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many solutions that can be formed by the above-mentioned combinations and their variations, as well as the specific implementation scheme of this embodiment, are all within the scope of protection of the present utility model.

[0042] There are of course many different options for the location of the mounting slot 100; it should be located at a location where wind noise is greater, depending on the exterior shape of the rearview mirror. Figure 1 、 Figure 2 and Figure 5 As shown, the mounting groove 100 is provided at the bottom of the housing 1 and is constructed in a long strip shape parallel to the lens 4 of the exterior rearview mirror. The disruptor body 5 is arranged to follow the shape of the mounting groove 100 and can slide within the mounting groove 100 to form a seal against the mounting groove 100. The placement of the mounting groove 100 at the bottom of the housing 1 is consistent with the airflow distribution outside the housing 1 and effectively disrupts the airflow passing through the bottom portion of the housing 1, which is prone to generating high wind noise, thereby reducing the intensity of the wind noise generated in this portion.

[0043] Preferably, the housing 1 of this embodiment adopts a split structure. Specifically, in this embodiment, the housing 1 comprises an upper housing 11 and a lower housing 10, which are connected to each other from top to bottom. It also includes a base 7, a lens frame 12, and a lens 4. Both the lower housing 10 and the upper housing 11 are fixed to the base 7. The lens frame 12 is fastened to the edges of the upper and lower housings 11, 10 facing the rear of the vehicle, and the lens 4 is mounted to the lens frame 12. Based on the arrangement of the upper and lower housings 11, 10, a turn indicator light 3 is positioned between the upper and lower housings 11, 10; the aforementioned mounting slot 100 is located at the bottom of the lower housing 10. The turn indicator light 3, the drive element for driving the lens 4, and the wiring harness 2 for the motor 61 described below all pass through the base 7 and into the vehicle's A-pillar, where they are connected to the vehicle's internal wiring via a connector 20. The split structure of the housing 1 facilitates the installation of various components within the housing 1 and the placement of the turn indicator light 3 between the lower and upper housings 10, 11. Specifically, the exterior rearview mirror of this embodiment includes a base 7 for connecting to the vehicle body, a lower shell 10 is installed on the base 7, and an upper shell 11 is spliced ​​to the top of the lower shell 10; the turn signal light 3 is designed to be long and strip-shaped and can be clamped between the lower shell 10 and the upper shell 11.

[0044] There are of course many different solutions for the specific driving mode of the driving mechanism 6. In this embodiment, Figure 4 、 Figure 6 As shown, the drive mechanism 6 includes a motor 61 disposed within the housing 1, and a transmission component 62 connected between the motor 61 and the fluid-disturbing body 5. As the motor 61 rotates, the fluid-disturbing body 5 is able to rise and fall within the mounting groove 100. The motor 61-driven mechanism allows for flexible control, with different forward and reverse rotation modes enabling the fluid-disturbing body 5 to extend and retract within the mounting groove 100, thus facilitating easy control.

[0045] Based on the above-described arrangement, the motor mounting base 60 is fixedly mounted within the housing 1 in this embodiment, and the motor 61 is clamped onto the motor mounting base 60. Based on the aforementioned arrangement of the base 7, the motor mounting base 60 can be positioned on the portion of the base 7 located within the housing 1; this clamping arrangement facilitates assembly. In this embodiment, the motor mounting base 60 is provided with four claws 600, and the motor 61 is inserted between and secured by the four claws 600.

[0046] It should be noted that the aforementioned transmission component 62 has various design options, including various drive forms such as a rocker arm, connecting rod, and lead screw. In this embodiment, the transmission component 62 comprises a meshing gear 623 and a transmission rack 620. The gear 623 is mounted on the output shaft of the motor 61, and the transmission rack 620 is guided within the housing 1 and connected to the fluid-disrupting body 5. The use of a rack-and-pinion transmission structure effectively converts the rotational motion of the motor 61 into vertical motion. The vertical movement of the transmission rack 620 drives the fluid-disrupting body 5 to slide within the mounting groove 100, thereby extending and retracting the fluid-disrupting body 5. This structure offers stable transmission performance and a compact overall transmission structure, making it convenient for deployment within the confined space within the housing 1.

[0047] Specifically, in this embodiment, a guide groove 63 is provided within the housing 1. This guide groove 63 can be provided on the motor mount 60, or a guide platform can be provided adjacent to the motor mount 60, with the guide groove 63 formed thereon. A transmission rack 620 is slidably guided and positioned in the guide groove 63. The bottom end of the transmission rack 620 is connected to the turbulent body 5 via a connecting rod 624. The provision of the guide groove 63 within the housing 1 provides a good guide base for the upward and downward movement of the transmission rack 620. The connection of the transmission rack 620 to the turbulent body 5 via the connecting rod 624 at the bottom allows for greater flexibility in the placement of the transmission rack 620. In this embodiment, the guide groove 63 and the motor fixing seat 60 are both fixed on the side wall of the boss of the base 7 located inside the shell 1. The transmission rack 620 is slidably set in the guide groove 63 through two support rods 621, so that the transmission rack 620 is exactly in a position of meshing with the teeth 622. Given that there is a certain distance between the turbulent body 5 and the bottom end of the transmission rack 620, the bottom end of the transmission rack 620 is connected to the turbulent body 5 through the connecting rod 624, thereby forming a good transmission structure.

[0048] In addition, the top end of the connecting rod 624 of this embodiment is hinged to the transmission rack 620 via a first pin 625, and the bottom end of the connecting rod 624 is connected to the swivel body 5 via a second pin 626. Both ends of the connecting rod 624 are hinged via pins, allowing the connecting rod 624 to swing at a certain angle relative to the transmission rack 620 and the swivel body 5. This allows the swivel body 5 to slide up and down within the mounting slot 100. Alternatively, an inclined slideway may be provided within the mounting slot 100, allowing the swivel body 5 to slide in and out along the inclined slideway. When the swivel body 5 slides upward toward the inside of the vehicle, the swivel body 5 simultaneously moves upward and retracts. Conversely, when the swivel body 5 slides downward toward the outside of the vehicle, it protrudes from the mounting slot 100 to the exterior of the housing 1. This arrangement is more suitable for housings with thinner walls and facilitates the flexible sliding of the swivel body 5 within the mounting slot 100.

[0049] Furthermore, preferably, a connecting groove 50 is provided in the middle of the fluid-disturbing body 5 of this embodiment, and the second pin 626 is slidably disposed in the connecting groove 50. The connecting groove 50 is provided on the fluid-disturbing body 5. Based on the fact that the fluid-disturbing body 5 is elongated and follows the shape of the mounting groove 100, the connecting groove 50 should be provided along the length of the fluid-disturbing body 5. In this way, the position of the second pin 626 on the fluid-disturbing body 5 can be changed, and it can slide left and right in the connecting groove 50. This provides the connecting rod 624 with a certain amount of buffering space when driving the fluid-disturbing body 5 to move, thereby reducing the possibility of jamming between the transmission components and also helping to reduce the resistance of the motor 61.

[0050] In summary, the exterior rearview mirror of this embodiment is configured by disposing a spoiler body 5 on the housing 1. The spoiler body 5 is movably disposed in the mounting groove 100 provided on the housing 1. The height of the protrusion of the spoiler body 5 from the outside of the housing 1 can be adjusted by driving the driving mechanism 6.

[0051] In existing exterior rearview mirror housing structures, some do not have spoiler ribs, while others simply have a fixed protrusion formed on the outer shell to serve as a spoiler. In the exterior rearview mirror of the present invention, the height of the protruding spoiler body 5 is adjustable. The protruding spoiler body 5 can be used to turbulently affect the airflow passing outside the exterior rearview mirror. The height of the protruding spoiler body 5 can be adjusted accordingly based on external wind speed conditions to improve the spoiler effect, thereby significantly reducing wind noise from the exterior rearview mirror and enhancing driving comfort for the driver.

[0052] Example 2

[0053] This embodiment relates to a vehicle, on which the exterior rearview mirror provided in the first embodiment is provided.

[0054] Building on the existing exterior rearview mirror structure, a new spoiler body 5 is added to the housing 1. Protruding spoiler ribs on the spoiler body 5 can be used to disrupt the airflow passing over the surface of the housing 1. The spoiler ribs protrude relative to the outer surface of the housing 1, and the height of the protruding spoiler ribs can be varied by driving the spoiler body 5 via a drive mechanism 6. The specific dimensions of the spoiler ribs can be appropriately set based on the exterior shape of the housing 1. For example, the length of the spoiler ribs can be set to 145mm, the width to 8.5mm, and the protruding height to 4.5mm. The mounting groove 100 can be positioned 3mm from the lens frame 12 and arranged along the contour of the lens frame 12. The spoiler ribs have the same curvature as the lower housing 10, and a chord length of approximately 2.5mm is sufficient. This structure reduces wind noise and helps optimize the overall appearance of the exterior rearview mirror.

[0055] The vehicle's control system controls the rotation of motor 61, achieving the overall upward and downward movement of spoiler body 5. This allows the driver to independently select whether to raise or lower the spoiler ribs, thereby reducing the impact of wind noise. The exterior rearview mirror of this utility model can reduce the maximum wind noise level of the vehicle from 94.6dB to 91.5dB, significantly reducing wind noise and improving driving comfort for the driver.

[0056] Furthermore, the overall structure of the spoiler 5 and its drive mechanism 6 of the present invention is simple, effective, and low-cost, requiring only modification of the lower housing 10 of the exterior rearview mirror, thereby reducing investment costs. Furthermore, the addition of a noise reduction structure to the secondary surface of the exterior rearview mirror has minimal impact on its appearance and does not affect its overall design and production.

[0057] The above description is merely a preferred embodiment of the present invention. The detailed configuration explanations, specific structural configuration examples, and assembly connection descriptions are provided for the purpose of providing sufficient disclosure to enable those skilled in the art to better implement the present invention. They are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An exterior rearview mirror, characterized in that: It comprises a housing (1), a disturbing body (5) provided on the housing (1), and a driving mechanism (6) provided in the housing (1); The housing (1) is provided with a mounting groove (100), the fluid disruptor (5) is movably arranged in the mounting groove (100), and under the driving of the driving mechanism (6), the fluid disruptor (5) can protrude out of the housing (1) through the mounting groove (100).

2. The exterior rearview mirror according to claim 1, characterized in that: The mounting groove (100) is opened at the bottom of the housing (1), and the mounting groove (100) is constructed in a long strip shape arranged parallel to the lens (4) of the exterior rearview mirror; the spoiler (5) is arranged in the shape of the mounting groove (100), can slide in the mounting groove (100), and can form a blockage for the mounting groove (100).

3. The exterior rearview mirror according to claim 1, characterized in that: The housing (1) comprises an upper housing (11) and a lower housing (10) which are connected to each other, and a turn indicator light (3) is provided between the upper housing (11) and the lower housing (10).

4. The exterior rearview mirror according to any one of claims 1 to 3, characterized in that: The driving mechanism (6) comprises a motor (61) disposed in the housing (1), and a transmission component (62) connected between the motor (61) and the fluid-disturbing body (5); as the motor (61) rotates, the fluid-disturbing body (5) can be lifted and lowered in the mounting groove (100).

5. The exterior rearview mirror according to claim 4, characterized in that: A motor fixing seat (60) is fixedly provided in the housing (1), and the motor (61) is clamped on the motor fixing seat (60).

6. The exterior rearview mirror according to claim 4, characterized in that: The transmission component (62) includes a gear (623) and a transmission rack (620) that are meshed and connected. The gear (623) is mounted on the output shaft of the motor (61). The transmission rack (620) is guided and arranged in the housing (1) and is connected to the disrupting body (5).

7. The exterior rearview mirror according to claim 6, characterized in that: A guide groove (63) is provided in the housing (1), and the transmission rack (620) is arranged in the guide groove (63) so as to be guided and slidable up and down. The bottom end of the transmission rack (620) is connected to the disrupting body (5) via a connecting rod (624).

8. The exterior rearview mirror according to claim 7, characterized in that: The top end of the connecting rod (624) is hinged to the transmission rack (620) via a first pin (625), and the bottom end of the connecting rod (624) is connected to the disrupting body (5) via a second pin (626).

9. The exterior rearview mirror according to claim 8, characterized in that: A connecting groove (50) is provided in the middle of the disrupting body (5), and the second pin shaft (626) is slidably arranged in the connecting groove (50).

10. A vehicle, characterized in that: The vehicle is provided with the exterior rearview mirror according to any one of claims 1 to 9.