Automobile spoiler assembly and automobile

Abstract

The application discloses an automobile spoiler assembly and an automobile, and relates to the technical field of automobile aerodynamic outer decoration. The assembly comprises a lightweight composite outer decoration base body, a self-adaptive deformation wing plate, a flexible connecting support and a noise reduction component. The self-adaptive deformation wing plate is made of a memory alloy composite material and is internally provided with heating wires. The self-adaptive angle adjustment is realized by temperature control without the use of a motor and hydraulic drive. The low-speed flatness reduces wind resistance, and the high-speed bending increases the downforce. Meanwhile, the self-adaptive deformation wing plate can be heated to remove ice and snow. The flexible connecting support limits the deformation range, and the base body is embedded with a microporous sound-absorbing layer to absorb airflow noise. The application integrates the functions of self-adaptive deformation, active noise reduction and heating and ice removal. The structure is simplified, the failure rate is low, the lightweight strength is high, the application is suitable for full-condition driving and multi-model assembly, and the problems of poor working condition adaptation, large wind noise, complex structure and easy icing in winter of the traditional spoiler are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of automotive exterior aerodynamic components technology, and more specifically, to an automotive rear wing assembly and an automotive. Background Technology

[0002] As an important exterior aerodynamic component, the rear spoiler is widely used in the original equipment and aftermarket for passenger and commercial vehicles. Its core function is to optimize vehicle aerodynamic performance, improve high-speed stability, and enhance the sporty appearance. Currently, mainstream automotive rear spoilers are mainly divided into two categories: fixed and adjustable.

[0003] Fixed rear wings are simple in structure and low in cost, but their fixed angle cannot adapt to different driving conditions: they are not effective enough in terms of aerodynamics at high speeds and cannot provide sufficient downforce; at low speeds, they increase wind resistance and fuel consumption and do not have additional functions such as noise reduction and de-icing.

[0004] Adjustable rear wings typically employ drive structures such as motors, hydraulic pumps, and linkage mechanisms. While they can achieve angle adjustment, they have significant drawbacks: First, the drive components are numerous and complex, requiring high assembly precision. Long-term use can easily lead to jamming and malfunctions, resulting in high maintenance costs. Second, at high speeds, the rear wing and the airflow at the rear of the vehicle can easily create vortex friction noise, resulting in noticeable wind noise inside the vehicle. Existing rear wings only passively mitigate this noise through their design, offering limited noise reduction. Third, in low-temperature rain and snow conditions during winter, the surface of the rear wing is prone to ice and snow accumulation, preventing the electric actuator from rising properly and requiring manual de-icing, which reduces its ease of use.

[0005] In summary, existing automotive rear spoilers generally suffer from common industry problems such as poor adaptability to operating conditions, high wind noise, difficulty in de-icing, complex structure, and high failure rate, making it difficult to simultaneously meet the integrated requirements of lightweighting, adaptive adjustment, active noise reduction, and low-temperature de-icing. Summary of the Invention

[0006] The purpose of this invention is to provide an automotive rear wing assembly that can, to a certain extent, solve at least one of the technical problems of traditional rear wings, such as poor adaptability to operating conditions, high wind noise, complex structure, and inability to be used due to icing in winter.

[0007] The technical solution of this invention is implemented as follows: An adaptive temperature-controlled deformation and de-icing automotive rear wing assembly includes a lightweight composite exterior substrate, an adaptive deformation wing plate, a flexible connection support, and noise reduction components. The lightweight composite exterior substrate is installed on the adaptive deformation wing, and heating wires are arranged inside the adaptive deformation wing; the noise reduction component is embedded in the surface layer of the lightweight composite exterior substrate; the adaptive deformation wing is made of temperature-sensitive deformation material, and achieves adaptive angle deformation under the temperature control of the heating wires, while simultaneously achieving de-icing and snow removal on the tail wing surface through the heating wires.

[0008] Furthermore, the lightweight composite exterior substrate is integrally molded from carbon fiber composite material, with a matte weather-resistant exterior coating sprayed on the surface, and internal airflow channels and wing plate mounting grooves are reserved.

[0009] Furthermore, the adaptive deformation wing plate is a composite structure of a high-elasticity memory alloy plate and a flexible polymer composite material. The memory alloy has temperature-responsive deformation characteristics, remaining straight at low / room temperature and bending upwards when the temperature is high.

[0010] Furthermore, the flexible connection support includes an elastic wire and a mechanical limiting block. The elastic wire maintains the initial straight state of the wing plate, and the mechanical limiting block limits the maximum bending angle to prevent excessive deformation.

[0011] Furthermore, the noise reduction component is a microporous sound-absorbing layer with a thickness of 2mm–4mm, used to absorb friction noise from high-speed airflow.

[0012] Furthermore, the heating wires are evenly distributed inside the adaptive deformation wing plate and are electrically connected to the vehicle power supply and control unit, supporting both automatic temperature control and manual forced heating modes.

[0013] Furthermore, the rear wing assembly is a modular structure that can be detachably connected to the car's trunk lid or roof via bolts, adaptable to both original factory assembly and aftermarket modifications.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Active noise reduction: Noise reduction components are set on the lightweight composite exterior substrate to directly absorb airflow vortex noise, reduce wind noise in the vehicle, and improve driving comfort.

[0015] 2. Heating for de-icing and snow removal: The wing has built-in heating wires that can quickly melt ice and snow in winter, ensuring the tail wing can work normally without manual cleaning. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the automotive rear wing assembly of the present invention mounted on an automotive vehicle.

[0018] In the picture: 1-Lightweight composite exterior substrate; 2-Adaptive deformation wing plate; 3-Flexible connection support. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels 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.

[0022] In the description of this invention, 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 accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this invention, 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 invention based on the specific circumstances.

[0025] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Example 1 like Figure 1 As shown, an adaptive temperature-controlled deformation and de-icing function automotive rear wing assembly includes a lightweight composite exterior substrate 1, an adaptive deformation wing plate 2, a flexible connecting support 3, and a noise reduction component.

[0027] The lightweight composite exterior substrate 1 is integrally molded from carbon fiber reinforced composite material with a thickness of 3mm–5mm. The surface is coated with a matte weather-resistant PU coating, which has the properties of UV resistance, aging resistance and scratch resistance. Multiple airflow channels are opened along the length of the substrate to guide the tail airflow and reduce vortices. The upper surface of the substrate has a wing plate mounting groove for positioning and installing the adaptive deformation wing plate 2.

[0028] The adaptive deformation wing plate 2 is made of nickel-titanium shape memory alloy sheet and TPU flexible polymer composite material through co-extrusion. The phase transformation temperature of the nickel-titanium shape memory alloy is set to 40℃~60℃. It remains flat at room temperature / low temperature, and bends upward when the temperature reaches the phase transformation temperature. The bending angle is adjustable from 5° to 15°. Multiple heating wires are evenly embedded along the length of the wing plate. The heating wires are carbon fiber heating wires or PTC constant temperature heating wires, which are electrically connected to the vehicle's on-board power supply and body control module (BCM), supporting automatic control linked to vehicle speed and manual control via in-vehicle buttons.

[0029] Flexible connecting supports 3 are set at both ends of the adaptive deformation wing plate 2. Each set of supports includes an elastic wire and a mechanical limiting block. The elastic wire can be made of stainless steel spring wire, with one end fixed to the inner wall of the wing plate mounting groove and the other end fixed to the bottom surface of the adaptive deformation wing plate 2. It is used to keep the wing plate straight when the shape memory alloy has not undergone phase change. The mechanical limiting block can be made of hard engineering plastic block and fixed in the mounting groove. It is used to limit the maximum bending angle of the wing plate and avoid excessive deformation that could lead to material fatigue damage.

[0030] The noise reduction component is a microporous sound-absorbing layer, made of PET foam sound-absorbing material or aluminum microporous plate, embedded in the upper surface of the lightweight composite outer casing 1. The thickness can be 2mm-4mm, which can effectively absorb airflow friction noise in the 800Hz-5000Hz frequency band and reduce the noise level.

[0031] The working process of this embodiment: 1. Low-speed driving conditions: When the vehicle speed is below 60km / h, the control unit does not activate the heating wire, the adaptive deformation wing 2 is at room temperature, the shape memory alloy does not undergo phase change, and remains straight under the action of elastic wire drawing, flush with the base surface, reducing the drag coefficient and reducing fuel consumption.

[0032] 2. High-speed driving conditions: When the vehicle speed is higher than 80km / h, the control unit automatically turns on the heating wire. The heating wire heats up so that the shape memory alloy reaches the phase change temperature, and the wingplate bends upward to a preset angle, increasing the downforce at the rear and improving the vehicle's high-speed stability and grip performance. At the same time, when the high-speed airflow passes through the base and wingplate, the noise is absorbed by the microporous sound-absorbing layer, reducing wind noise inside the vehicle.

[0033] 3. Winter de-icing and snow removal: After the vehicle is started, the user can manually turn on the heating wire via the button inside the vehicle. The heating wire heats up quickly to melt the ice and snow on the surface of the wing and the base. De-icing is completed within 5-10 minutes, ensuring that the wing can deform and work normally.

[0034] 4. Manual adjustment mode: Users can manually control the on / off state of the heating wire and freely adjust the bending angle of the wing plate according to their driving needs to meet personalized usage.

[0035] Example 2 The structure is basically the same as that of Example 1, except that: the phase change temperature of the memory alloy is set to 50℃–70℃, which is suitable for use in high-temperature environments; the microporous sound-absorbing layer is made of ceramic porous material, which is resistant to high temperature and has a longer service life; the heating wire adopts a dual-circuit parallel design, so that if one circuit fails, the other circuit can still work, thus improving reliability.

[0036] Example 3 The structure is basically the same as that of Example 1, except that: the lightweight composite exterior substrate 1 uses glass fiber reinforced PA66 composite material, which is lower in cost and suitable for economy models; the flexible connecting support 3 uses silicone elastomer instead of elastic wire, which makes the structure simpler and easier to assemble.

[0037] It should be noted that this solution is not limited to the specific implementation method described above. Based on the materials, structure and principles disclosed in this application, those skilled in the art can make conventional substitutions and adjustments to the materials, dimensions, phase change temperature and heating power according to vehicle model and working conditions, all of which fall within the protection scope of this invention.

[0038] Example 4 An automobile includes the aforementioned rear spoiler assembly, which is mounted on the trunk or roof of the automobile.

[0039] Industrial applicability: This solution can be widely used in the original equipment and aftermarket modification of various passenger vehicles such as sedans, SUVs, MPVs, and sports cars. Through modular design, it can be quickly adapted to different rear body structures. It has the advantages of simple structure, convenient assembly, low failure rate, and high functional integration. It is in line with the development trend of lightweight, intelligent and multifunctional vehicles and has good industrial application value and market prospects.

[0040] The beneficial effects of the technical solution of the present invention are: 1. Unpowered adaptive deformation: It adopts shape memory alloy temperature-controlled deformation, eliminating drive components such as motors and hydraulic pumps, simplifying the structure, reducing the failure rate and lowering the cost. It reduces wind resistance when driving straight at low speeds and increases downforce when bending at high speeds, making it suitable for all working conditions.

[0041] 2. Active noise reduction: The microporous sound-absorbing layer embedded in the substrate directly absorbs airflow vortex noise, reduces wind noise inside the vehicle, and improves driving comfort.

[0042] 3. Heating for de-icing and snow removal: The wing has built-in heating wires that can quickly melt ice and snow in winter, ensuring the tail wing can work normally without manual cleaning.

[0043] 4. Lightweight and high strength: The carbon fiber composite matrix is ​​integrally molded, which is lightweight, high-strength, and has a good appearance and texture, making it suitable for a variety of vehicle models.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A car rear spoiler assembly, characterized in that, Includes lightweight composite exterior substrate, adaptive deformation wing panel, flexible connection support and noise reduction components; The lightweight composite exterior substrate is disposed on the adaptive deformation wing plate, and the adaptive deformation wing plate is internally equipped with heating wires, which are used to achieve temperature-controlled deformation and de-icing and snow removal; the noise reduction component is integrated into the lightweight composite exterior substrate to absorb airflow noise; the adaptive deformation wing plate is made of temperature-sensitive deformation material, which can achieve adaptive angle adjustment with temperature changes under conditions without motor or hydraulic drive.

2. The automotive rear spoiler assembly according to claim 1, characterized in that, The lightweight composite exterior substrate is a one-piece molded structure of carbon fiber composite material, with a matte weather-resistant exterior coating on the surface, and an internal airflow channel and a wing plate mounting groove for connecting the adaptive deformation wing plate.

3. The automotive rear spoiler assembly according to claim 1, characterized in that, The flexible connecting supports are respectively provided on the left and right sides of the car trunk or roof, and the two ends of the adaptive deformation wing plate are respectively provided on the flexible connecting supports on both sides. The adaptive deformation airfoil is made of a high-elasticity memory alloy sheet and a flexible polymer composite material. When the temperature rises, it bends upward to increase the downforce of the vehicle, and when the temperature drops, it returns to a straight state to reduce wind resistance.

4. The automotive rear wing assembly according to claim 1, characterized in that, The flexible connection support includes elastic wires and mechanical limiting blocks, which are used to limit the initial angle and maximum bending angle of the adaptive deformation wing plate to prevent excessive deformation.

5. The automotive rear spoiler assembly according to claim 1, characterized in that, The noise reduction component is a microporous sound-absorbing layer embedded in the surface of the lightweight composite exterior substrate.

6. The automotive rear wing assembly according to claim 1, characterized in that, The heating wire can be independently controlled for heating, and can be used to manually adjust the angle of the adaptive deformation airfoil or to heat the tail fin surface for de-icing and snow removal.

7. The automotive rear spoiler assembly according to claim 1, characterized in that, The rear wing assembly is a modular structure that can be detachably connected to the trunk or roof of the car by bolts.

8. The automotive rear wing assembly according to claim 3, characterized in that, The deformation temperature threshold of the shape memory alloy can be preset according to the vehicle's driving conditions. At low speeds, it does not need to be heated to maintain its straightness, while at high speeds, it is heated to trigger bending.

9. A car, characterized in that, Includes the automotive rear wing assembly as described in any one of claims 1-8.

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