Automobile radiator flow guide structure

By incorporating flexible lips and cross-shaped ridges on the air deflector, the problem of uneven airflow division in the radiator air deflector is solved, improving heat dissipation efficiency and service life while reducing noise.

CN224408946UActive Publication Date: 2026-06-26WUHAN SHUANGOU HIGH MOLECULAR MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN SHUANGOU HIGH MOLECULAR MATERIAL CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing radiator deflectors cannot effectively divide and uniformly guide airflow, thus limiting the improvement of heat dissipation efficiency.

Method used

The system employs a flexible lip and a cross-shaped arrangement of transverse and longitudinal convex strips to create a turbulence structure. Combined with the design of protrusions and grooves, it forms a regular grid-like airflow segmentation. A protective structure is also installed inside the deflector to enhance sealing and durability.

Benefits of technology

This achieves uniform airflow coverage on the radiator surface, improving heat exchange efficiency, reducing noise, and extending the service life of the airflow guiding structure.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224408946U_ABST
    Figure CN224408946U_ABST
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Abstract

The utility model relates to the technical field of flow guide plate provides a car radiator flow guide structure, including flow guide plate, the edge position department of flow guide plate inside is provided with mounting hole, the edge position department of flow guide plate is fixed with flexible lip, the surface of flow guide plate is provided with the turbulence structure, the inside of flow guide plate is provided with the protection structure. The utility model discloses is provided with turbulence structure, through horizontal convex strip and longitudinal convex strip perpendicular each other and presents equidistant distribution, forms the regular grid structure on the flow guide plate surface. Further can play the effective segmentation and guiding effect to the airflow, makes the airflow more evenly cover radiator surface, promotes the evenness of whole heat dissipation, and through the circular convex point and the recess, can further produce the turbulence to the airflow, makes the airflow form tiny vortex. Further enhanced the heat exchange efficiency between the airflow and radiator, help radiator to dissipate heat more quickly.
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Description

Technical Field

[0001] This utility model relates to the field of air deflector technology, and in particular to an air deflector structure for an automotive radiator. Background Technology

[0002] As a key component of the cooling system, the heat dissipation efficiency of a car radiator directly depends on the airflow state flowing across its surface. A car radiator deflector is a functional structural component installed around or at the front of the car radiator. Its core function is to optimize airflow and improve the radiator's heat dissipation efficiency, while also providing auxiliary functions such as protection and noise reduction.

[0003] To address this, patent CN207161199U discloses a radiator guide vane and an automobile, belonging to the field of automotive technology. The radiator guide vane includes: a lower guide vane; a left guide vane and a right guide vane located on the left and right sides of the lower guide vane, the left and right guide vanes being symmetrically arranged; each of the left and right guide vanes consists of a main airflow vane, a side airflow vane, and a sealing sponge; the main airflow vane has at least one mounting hole at its upper, middle, and lower parts, allowing the radiator guide vane to be connected and fixed to the radiator bracket by mounting bolts in the mounting holes; the lower guide vane consists of a lower airflow vane and a sealing sponge. This invention significantly increases the radiator's airflow and opening ratio, ensuring good heat dissipation of the off-road vehicle's cooling system and guaranteeing better power output.

[0004] The radiator deflectors mentioned above, along with the left and right deflectors and the lower deflector in the car, increase the radiator's airflow to some extent during use. However, they are not conducive to guiding and dividing the airflow, and cannot form a uniform airflow distribution covering the radiator surface, thus making it difficult to fully improve the heat dissipation efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a flow guide structure for an automotive radiator, which solves the shortcomings of existing radiator flow guides and the inconvenience of turbulent airflow in automobiles.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a car radiator airflow guiding structure, including an airflow guiding plate;

[0007] Mounting holes are provided at the inner edge of the guide plate, and a flexible lip is fixed at the edge of the guide plate. A flow-disrupting structure is provided on the surface of the guide plate. The flow-disrupting structure includes transverse ridges and longitudinal ridges fixed to the surface of the guide plate. A protrusion is provided at the intersection of the transverse ridges and the longitudinal ridges, and a groove is provided inside the protrusion.

[0008] The guide vane has a protective structure inside.

[0009] Preferably, the inner wall of the mounting hole is provided with an internal thread, the flexible lip is made of silicone material, and the thickness of the flexible lip gradually decreases.

[0010] With the above structure, a flexible silicone lip is used during use, which can fit tightly against the gap between the vehicle body and the radiator. The sealing force is automatically adjusted according to the airflow pressure. At low speeds, the lip expands to enhance the seal; at high speeds, the lip contracts under the pressure of the airflow to reduce wind resistance while maintaining the sealing effect.

[0011] Preferably, the transverse and longitudinal protrusions are arranged perpendicularly to each other, and the transverse and longitudinal protrusions are distributed at equal intervals on the surface of the guide plate, and the transverse and longitudinal protrusions have the same height.

[0012] With the above structure, when in use, the horizontal and vertical convex strips are perpendicular to each other and equally spaced to form a regular grid structure on the surface of the guide plate. This can disrupt the laminar flow state of the airflow boundary layer, allowing the airflow to cover the radiator surface more evenly and improving the heat dissipation uniformity of each area of ​​the radiator.

[0013] Preferably, the protrusions are arranged in a circle, and the protrusions are evenly distributed on the surface of the guide plate at the intersection of the transverse and longitudinal protrusions.

[0014] With the above structure, when airflow passes over the protrusions, the circular protrusions generate more uniform disturbances to the airflow, prompting it to form stable micro-vortices. This increases the contact area and contact time between the airflow and the radiator surface, thereby improving heat exchange efficiency.

[0015] Preferably, the protective structure includes a first base layer and a second base layer disposed inside the guide plate, a sound-absorbing layer disposed between the first base layer and the second base layer, a heat insulation layer disposed on the side of the first base layer and the second base layer that are far apart from each other, and an anti-corrosion layer disposed on the side of the heat insulation layer that is far apart from each other.

[0016] Preferably, the first and second base layers are made of carbon fiber reinforced polypropylene material, the first and second base layers have the same thickness, and the sound-absorbing layer is basalt fiber felt.

[0017] With the above structure, the sound-absorbing layer uses basalt fiber felt, which has a porous structure that has a good sound absorption effect. It can absorb the noise generated when the airflow passes through the guide plate, reduce noise pollution during vehicle operation, and improve driving comfort.

[0018] Preferably, the heat insulation layer is a polyimide coating, and the anti-corrosion layer is an epoxy coating.

[0019] With the above structure, the heat insulation function of the polyimide coating prevents high temperature from damaging the material properties during use, and the anti-corrosion function of the epoxy coating prevents external environmental erosion of the structure, thus providing protection for the deflector plate.

[0020] The advantages of the airflow guiding structure for an automotive radiator provided by this utility model are as follows:

[0021] By incorporating a turbulence-inducing structure, with horizontal and vertical ridges perpendicular to each other and evenly spaced, a regular grid-like structure is formed on the surface of the guide plate. This effectively divides and guides the airflow, allowing it to more evenly cover the radiator surface and improve the overall heat dissipation uniformity. Furthermore, the circular protrusions and grooves further turbulent the airflow, creating micro-vortices. This enhances the heat exchange efficiency between the airflow and the radiator, helping the radiator dissipate heat more quickly.

[0022] By incorporating a protective structure and a sound-absorbing layer made of basalt fiber felt, the heat generated by the radiator during operation is reduced and transferred to the outside of the air deflector, providing insulation. This also reduces noise generated when airflow passes over the air deflector, improving user comfort. The insulation layer is made of polyimide, which has high-temperature resistance and protects the base material from the high temperatures of the radiator, preventing performance degradation or damage due to high temperatures. Furthermore, the anti-corrosion layer is made of epoxy coating, which enables the air deflector to maintain stable performance in complex automotive working environments such as humidity and dust, reducing damage caused by corrosion and aging, thereby extending the service life of the entire air deflector structure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 5 This is a cross-sectional schematic diagram of the protective structure of this utility model.

[0028] The reference numerals in the figure are as follows: 1. Deflector plate; 2. Mounting hole; 3. Flexible lip; 4. Turbidity structure; 401. Transverse ridge; 402. Longitudinal ridge; 403. Protrusion; 404. Groove; 5. Protective structure; 501. First base layer; 502. Second base layer; 503. Sound-absorbing layer; 504. Heat insulation layer; 505. Anti-corrosion layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 The present invention provides an airflow guiding structure for an automotive radiator, including an airflow guide plate 1.

[0031] Reference Figures 1-4 As shown, mounting holes 2 are provided at the edges of the interior of the guide plate 1. A flexible lip 3 is fixed at the edge of the guide plate 1. The inner wall of the mounting hole 2 is provided with internal threads. The flexible lip 3 is made of silicone material and the thickness of the flexible lip 3 gradually decreases. A turbulence structure 4 is provided on the surface of the guide plate 1. The turbulence structure 4 includes a transverse protrusion 401 and a longitudinal protrusion 402 fixed to the surface of the guide plate 1. A protrusion 403 is provided at the intersection of the transverse protrusion 401 and the longitudinal protrusion 402. A groove 404 is provided inside the protrusion 403. The transverse protrusion 401 and the longitudinal protrusion 402 are arranged perpendicular to each other. The transverse protrusion 401 and the longitudinal protrusion 402 are equally spaced on the surface of the guide plate 1. The height of the transverse protrusion 401 and the longitudinal protrusion 402 is the same. The protrusion 403 is circular and is equally spaced on the surface of the guide plate 1 at the intersection of the transverse protrusion 401 and the longitudinal protrusion 402.

[0032] As the core carrier, the air deflector 1 guides airflow to the core area of ​​the radiator through its overall structure, reducing airflow loss. The internal thread design on the inner wall of the mounting holes 2 facilitates fixation to other automotive components, ensuring stable installation of the air deflector while the vehicle is in motion. The flexible silicone lip 3, with its gradually decreasing edge thickness, tightly conforms to the surrounding components of the radiator, reducing airflow leakage from gaps and improving airflow utilization. A grid-like structure is formed on the surface of the air deflector 1 by the perpendicular and equally spaced horizontal and vertical ribs 401. When airflow passes through, the ribs divide and guide the airflow, preventing concentrated impact on a single area and allowing for more even airflow coverage of the radiator surface. The circular protrusions 403 and internal grooves 404 at the intersections further agitate the airflow, forming micro-vortices. These vortices enhance the heat exchange efficiency between the airflow and the radiator surface, while the protrusion structure strengthens the overall ribs, preventing deformation caused by long-term airflow impact.

[0033] Reference Figure 5As shown, the guide plate 1 has a protective structure 5 inside. The protective structure 5 includes a first base layer 501 and a second base layer 502 disposed inside the guide plate 1. A sound-absorbing layer 503 is disposed between the first base layer 501 and the second base layer 502. A heat insulation layer 504 is disposed on the side of the first base layer 501 and the second base layer 502 that is far away from each other. An anti-corrosion layer 505 is disposed on the side of the heat insulation layer 504 that is far away from each other. The first base layer 501 and the second base layer 502 are made of carbon fiber reinforced polypropylene material. The first base layer 501 and the second base layer 502 have the same thickness. The sound-absorbing layer 503 is basalt fiber felt. The heat insulation layer 504 is a polyimide coating. The anti-corrosion layer 505 is an epoxy coating.

[0034] The first base layer 501 and the second base layer 502 are made of carbon fiber reinforced polypropylene, which has both high strength and lightweight characteristics, providing structural support for the air guide plate and resisting airflow impact and mechanical damage from the external environment. The middle sound-absorbing layer 503 is made of basalt fiber felt, which has good heat insulation and sound absorption performance, which can reduce the heat transfer to the outside of the air guide plate when the radiator is working, and at the same time reduce the noise when the airflow passes through. The heat insulation layer 504 is a polyimide coating, which has high temperature resistance and protects the base material from the high temperature of the radiator. The outer anti-corrosion layer 505 is an epoxy coating, which has anti-corrosion and anti-aging functions, extending the service life of the structure in complex environments such as humidity and dust.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flow guiding structure for an automotive radiator, comprising a flow guide plate (1); Its features are: Mounting holes (2) are provided at the inner edge of the guide plate (1). A flexible lip (3) is fixed at the edge of the guide plate (1). A turbulence structure (4) is provided on the surface of the guide plate (1). The turbulence structure (4) includes a transverse protrusion (401) and a longitudinal protrusion (402) fixed on the surface of the guide plate (1). A protrusion (403) is provided at the intersection of the transverse protrusion (401) and the longitudinal protrusion (402). A groove (404) is provided inside the protrusion (403). The guide plate (1) has a protective structure (5) inside.

2. The flow guide structure of an automobile radiator according to claim 1, characterized in that: The inner wall of the mounting hole (2) is provided with an internal thread, the flexible lip (3) is made of silicone material, and the thickness of the flexible lip (3) gradually decreases.

3. The flow guide structure of an automobile radiator according to claim 1, characterized in that: The transverse protrusion (401) and the longitudinal protrusion (402) are arranged perpendicularly to each other. The transverse protrusion (401) and the longitudinal protrusion (402) are distributed at equal intervals on the surface of the guide plate (1). The transverse protrusion (401) and the longitudinal protrusion (402) have the same height.

4. The airflow guiding structure for an automotive radiator according to claim 1, characterized in that: The protrusions (403) are arranged in a circle, and the protrusions (403) are evenly distributed on the surface of the guide plate (1) at the intersection of the transverse protrusions (401) and the longitudinal protrusions (402).

5. The airflow guiding structure for an automotive radiator according to claim 1, characterized in that: The protective structure (5) includes a first base layer (501) and a second base layer (502) disposed inside the guide plate (1). A sound-absorbing layer (503) is disposed between the first base layer (501) and the second base layer (502). A heat insulation layer (504) is disposed on the side of the first base layer (501) and the second base layer (502) that are far apart from each other. A corrosion-resistant layer (505) is disposed on the side of the heat insulation layer (504) that is far apart from each other.

6. The airflow guiding structure for an automotive radiator according to claim 5, characterized in that: The first base layer (501) and the second base layer (502) are made of carbon fiber reinforced polypropylene material. The first base layer (501) and the second base layer (502) have the same thickness. The sound-absorbing layer (503) is basalt fiber felt.

7. The airflow guiding structure for an automotive radiator according to claim 5, characterized in that: The heat insulation layer (504) is a polyimide coating, and the anti-corrosion layer (505) is an epoxy coating.