A vane for a diffuser

By embedding studs and nuts in the diffuser blades for connection, combined with metal strips and NBR rubber parts, the problem of insufficient blade fixing strength is solved, achieving a more stable connection and adaptability.

CN224297293UActive Publication Date: 2026-05-29DONGGUAN ACTION COMPOSITES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN ACTION COMPOSITES CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing diffuser blade fixing structure is not strong enough, which makes it easy for them to detach during high-speed driving, affecting the vehicle's stability and grip.

Method used

By embedding studs within the carbon fiber plate and connecting the mounting base with nuts, combined with the metal strip and mounting holes within the rubber component, a double fixing method is adopted to improve the connection strength, and the NBR material rubber component is used to maintain its deformation capacity at low temperatures.

Benefits of technology

It improves the connection stability between the blades and the vehicle body, ensures the normal rotation of the carbon fiber plate, enhances the structural strength of the connection between the rubber parts and the diffuser, and adapts to the performance requirements of different driving scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of vanes of diffuser, including fixed body and rotating body, rotating body can rotate relative to fixed body;Rotating body includes carbon fiber plate body and mounting seat, mounting seat is provided with mounting site on carbon fiber plate body, stud is embedded in carbon fiber plate body, the top of stud is exposed to mounting site, mounting seat is provided with the avoiding hole for stud, the bottom of mounting seat is glued on mounting site through stud, nut is connected on stud for mounting seat is tightly pressed towards mounting site;Fixed body includes metal strip and rubber piece, at least two installation holes connected with diffuser are set in metal strip, rubber piece is NBR material, rubber piece covers metal strip and part carbon fiber plate body, installation hole exposes outside rubber piece, rubber piece provides deformation part when carbon fiber plate body rotates.Double fixed mode improves the connecting strength between mounting seat and carbon fiber plate body, the setting of metal strip improves the structural strength of the connecting portion of rubber piece and diffuser.
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Description

Technical Field

[0001] This utility model relates to the field of diffusers, and in particular to a diffuser blade. Background Technology

[0002] A vehicle diffuser is a device designed based on aerodynamic principles. It is mainly used to optimize airflow under the vehicle body, improve the vehicle's high-speed stability and grip. Its core function is to generate downforce by accelerating the airflow under the vehicle and reducing the air pressure difference, thereby "adhering" the vehicle to the road surface. The vehicle diffuser is equipped with blades, and the angle of the blades can be dynamically adjusted to better meet the performance requirements of the vehicle in different driving scenarios.

[0003] In the prior art, a blade is disclosed, which includes a flexible component and a rigid component connected to the flexible component. The flexible component has a fixing part, and the fixing part has a mounting hole. A rigid bushing is provided in the mounting hole and is interference-fitted into the mounting hole. The rigid bushing is used to connect with a vehicle diffuser. In this structure, the rigid bushing is installed in the mounting hole after the flexible component is formed, which makes the assembly relatively complicated. Moreover, the strength of the connection between the fixing part and the vehicle diffuser is concentrated in the rigid bushing, which can easily cause the rest of the fixing part to bend and deform, thereby affecting the rotation of the rigid component. A blade mounting bracket is glued to the rigid component. The rigid component is made of carbon fiber, and the blade mounting bracket is made of metal. The blade mounting bracket is fixed only by gluing. This fixing method has poor structural strength, and the two are prone to detachment during high-speed vehicle operation.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a diffuser blade. This blade utilizes a double-fixing method: a stud is embedded within a carbon fiber plate, and the bottom of a mounting base passes through the stud and is glued to the mounting position. A nut is then connected to the stud to tighten the mounting base towards the mounting position. This double-fixing method improves the connection strength between the mounting base and the carbon fiber plate, allowing the blade to be more stably connected to the vehicle body. Furthermore, a metal strip is embedded within the rubber component, with at least two mounting holes for connecting to the diffuser. The metal strip enhances the structural strength of the connection between the rubber component and the diffuser, preventing deformation and ensuring the normal rotation of the carbon fiber plate. Additionally, the rubber component is made of NBR material, allowing it to maintain its deformability even at low temperatures, better adapting to performance requirements in different driving scenarios.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A diffuser blade includes a fixed body and a rotating body connected to the fixed body, the rotating body being rotatable relative to the fixed body;

[0008] The rotating body includes a carbon fiber plate and a mounting base for connecting to the vehicle body. The carbon fiber plate has a mounting position, and a stud is embedded in the carbon fiber plate. The top of the stud protrudes from the mounting position. The mounting base has a clearance hole for the stud to pass through. The bottom of the mounting base passes through the stud and is glued to the mounting position. A nut is connected to the stud for pressing the mounting base toward the mounting position.

[0009] The fixing body includes a metal strip and a rubber component. The metal strip has at least two mounting holes for connecting to the diffuser. The rubber component is made of NBR material and covers the metal strip and part of the carbon fiber plate. The mounting holes are exposed outside the rubber component. The rubber component provides a deformation part when the carbon fiber plate rotates.

[0010] As a preferred embodiment, the carbon fiber plate includes a main body and a connecting part connected to the main body, the mounting position is recessed downward from the top of the main body, and the rubber part covers the connecting part and part of the main body.

[0011] As a preferred embodiment, the end of the connecting portion near the main body is inclined so that the top surface of the connecting portion is higher than the top of the main body. Correspondingly, the end of the rubber component near the main body is also inclined.

[0012] As a preferred embodiment, the dimension of the connecting part in the left-right direction is smaller than the dimension of the main body in the left-right direction, so that the left and right sides of the connecting part are both formed with recesses, and the rubber part covers the recesses.

[0013] As a preferred embodiment, the connecting part is provided with a plurality of first adhesive passage holes, and correspondingly, the rubber part is formed with a first connecting post passing through the first adhesive passage holes.

[0014] As a preferred embodiment, the stud includes a base plate and a column connected to the top of the base plate. The base plate is provided with a boss, and the column is connected to the top of the boss. The mounting position is provided with a step corresponding to the base plate. The step covers the base plate, and both the boss and the column are exposed outside the step. The top surface of the boss is flush with the top surface of the step. Correspondingly, the bottom of the mounting base is provided with a recess that matches the step.

[0015] As a preferred embodiment, the metal strip has a protrusion corresponding to the mounting hole, the protrusion protruding from the bottom surface of the metal strip toward the top surface, the mounting hole is disposed on the protrusion, and the upper and lower outer peripheries of the protrusion corresponding to the mounting hole are provided with annular protrusions.

[0016] As a preferred embodiment, a first reinforcing rib is provided on the outer periphery of the annular protrusion located on the bottom surface of the protrusion.

[0017] As a preferred embodiment, the top and bottom surfaces of the metal strip are provided with second reinforcing ribs.

[0018] As a preferred embodiment, the metal strip is provided with a plurality of second adhesive passage holes, and correspondingly, the rubber component is formed with a second connecting post passing through the second adhesive passage holes.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0020] The main features include: embedded studs within the carbon fiber plate; the bottom of the mounting base passes through the studs and is glued to the mounting position; and a nut is used to connect the mounting base to the studs, securing it against the mounting position. This double-fixing method improves the connection strength between the mounting base and the carbon fiber plate, allowing the blade to be more stably connected to the vehicle body. Furthermore, the rubber component contains a metal strip with at least two mounting holes for connecting to the diffuser. The metal strip enhances the structural strength at the connection between the rubber component and the diffuser, preventing deformation and ensuring the carbon fiber plate can rotate normally. Additionally, the rubber component is made of NBR material, allowing it to maintain its deformability even at low temperatures, better adapting to performance requirements in different driving scenarios.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0023] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0024] Figure 3 This is an exploded view of another preferred embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the stud according to a preferred embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the installation of the metal strip according to a preferred embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram illustrating the application of a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Fixed main body; 11. Metal strip;

[0030] 12. Rubber parts; 13. Deformable parts;

[0031] 131. Groove; 101. Mounting hole;

[0032] 102. Protrusion; 103. Annular protrusion;

[0033] 104. First reinforcing rib; 105. Second reinforcing rib;

[0034] 106. Second glue passage; 20. Rotate the main body;

[0035] 21. Carbon fiber plate; 211. Main body;

[0036] 212. Connecting part; 22. Mounting base;

[0037] 221. Clearance hole; 23. Stud;

[0038] 231. Base plate; 232. Column;

[0039] 233. Boss; 24. Nut;

[0040] 201. Mounting position; 202. Notch;

[0041] 203. First adhesive passage hole; 204. Stepped section;

[0042] 30. Diffuser. Detailed Implementation

[0043] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0044] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a fixed body 10 and a rotating body 20 connected to the fixed body 10, wherein the rotating body 20 is capable of rotating relative to the fixed body 10.

[0045] The rotating body 20 includes a carbon fiber plate 21 and a mounting base 22 for connecting with the vehicle body. The carbon fiber plate 21 is provided with a mounting position 201. A stud 23 is embedded in the carbon fiber plate 21. The top of the stud 23 protrudes from the mounting position 201. The mounting base 22 has a clearance hole 221 for the stud 23 to pass through. The bottom of the mounting base 22 passes through the stud 23 and is glued to the mounting position 201. A nut 24 is connected to the stud 23 for pressing the mounting base 22 toward the mounting position 201.

[0046] The fixing body 10 includes a metal strip 11 and a rubber component 12. The metal strip 11 has at least two mounting holes 101 that connect to the diffuser 30. The rubber component 12 is made of NBR material. The rubber component 12 covers the metal strip 11 and part of the carbon fiber plate 21. The mounting holes 101 are exposed outside the rubber component 12. The rubber component 12 provides a deformation part 13 when the carbon fiber plate 21 rotates. The deformation part 13 is located between the metal strip 11 and the connecting part 212, and the top and bottom surfaces of the deformation part 13 are both recessed with grooves 131.

[0047] See Figure 1 and Figure 2 As shown, the carbon fiber plate 21 includes a main body 211 and a connecting part 212 connected to the main body 211. The mounting position 201 is recessed downward from the top of the main body 211. The rubber part 12 covers the connecting part 212 and part of the main body 211. The left-right dimension of the connecting part 212 is smaller than the left-right dimension of the main body 211, so that the left and right sides of the connecting part 212 form notches 202. The rubber part 12 covers the notches 202. The setting of the rubber part 12 covering the notches 202 makes the left and right sides of the rubber part 12 at the position of the connecting part 212 flush with the left and right sides of the rubber part 12 at the position of the main body 211. The connecting part 212 is provided with a plurality of first glue passage holes 203. Correspondingly, the rubber part 12 forms a first connecting post (not shown in the figure) passing through the first glue passage holes 203. The cooperation between the first glue passage holes 203 and the first connecting post makes the structural strength of the connection between the rubber part 12 and the connecting part 212 better.

[0048] Specifically, see Figure 5 As shown, the end of the connecting part 212 near the main body 211 is inclined so that the top surface of the connecting part 212 is higher than the top of the main body 211 and the bottom surface of the connecting part 212 is higher than the bottom of the main body 211. Correspondingly, the end of the rubber part 12 near the main body 211 is inclined. The inclined arrangement allows the rubber part 12 to better connect with the main body 211.

[0049] See Figure 4As shown, the stud 23 includes a base plate 231 and a column 232 connected to the top of the base plate 231. The base plate 231 is provided with a boss 233, and the column 232 is connected to the top of the boss 233. The mounting position 201 is provided with a step 204 corresponding to the base plate 231. The step 204 covers the base plate 231. Both the boss 233 and the column 232 are exposed outside the step 204. The top surface of the boss 233 is flush with the top surface of the step 204. Correspondingly, the bottom of the mounting base 22 is provided with a recess that matches the step 204.

[0050] See Figure 3 and Figure 5 As shown, the metal strip 11 is located at the end of the rubber part 12 away from the connecting part 212. The metal strip 11 is provided with a protrusion 102 corresponding to the mounting hole 101. The protrusion 102 protrudes from the bottom surface of the metal strip 11 toward the top surface. The mounting hole 101 is provided on the protrusion 102. The protrusion 102 is provided with annular protrusions 103 on both the upper and lower outer peripheries of the mounting hole 101.

[0051] Specifically, see Figure 3 and Figure 4 As shown, a first reinforcing rib 104 is provided on the outer periphery of the annular protrusion 103 located on the bottom surface of the protrusion 102, and a second reinforcing rib 105 is provided on both the top and bottom surfaces of the metal strip 11; a plurality of second adhesive passage holes 106 are provided on the metal strip 11, and correspondingly, the rubber part 12 forms a second connecting post (not shown in the figure) passing through the second adhesive passage hole 106. The cooperation between the second adhesive passage hole 106 and the second connecting post makes the structural strength of the connection between the rubber part 12 and the metal strip 11 better.

[0052] The key design feature of this utility model is:

[0053] The main features include: embedded studs within the carbon fiber plate; the bottom of the mounting base passes through the studs and is glued to the mounting position; and a nut is used to connect the mounting base to the studs, securing it against the mounting position. This double-fixing method improves the connection strength between the mounting base and the carbon fiber plate, allowing the blade to be more stably connected to the vehicle body. Furthermore, the rubber component contains a metal strip with at least two mounting holes for connecting to the diffuser. The metal strip enhances the structural strength at the connection between the rubber component and the diffuser, preventing deformation and ensuring the carbon fiber plate can rotate normally. Additionally, the rubber component is made of NBR material, allowing it to maintain its deformability even at low temperatures, better adapting to performance requirements in different driving scenarios.

[0054] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A diffuser blade, comprising a fixed body and a rotating body connected to the fixed body, the rotating body being rotatable relative to the fixed body; characterized in that: The rotating body includes a carbon fiber plate and a mounting base for connecting to the vehicle body. The carbon fiber plate has a mounting position, and a stud is embedded in the carbon fiber plate. The top of the stud protrudes from the mounting position. The mounting base has a clearance hole for the stud to pass through. The bottom of the mounting base passes through the stud and is glued to the mounting position. A nut is connected to the stud for pressing the mounting base toward the mounting position. The fixing body includes a metal strip and a rubber component. The metal strip has at least two mounting holes for connecting to the diffuser. The rubber component is made of NBR material and covers the metal strip and part of the carbon fiber plate. The mounting holes are exposed outside the rubber component. The rubber component provides a deformation part when the carbon fiber plate rotates.

2. The diffuser blade according to claim 1, characterized in that: The carbon fiber plate includes a main body and a connecting part connected to the main body. The mounting position is recessed downward from the top of the main body. The rubber part covers the connecting part and part of the main body.

3. The diffuser blade according to claim 2, characterized in that: The end of the connecting part near the main body is inclined so that the top surface of the connecting part is higher than the top of the main body. Correspondingly, the end of the rubber part near the main body is inclined.

4. The diffuser blade according to claim 2, characterized in that: The dimension of the connecting part in the left-right direction is smaller than that of the main body in the left-right direction, so that the left and right sides of the connecting part are both formed with recesses, and the rubber part covers the recesses.

5. The diffuser blade according to claim 2, characterized in that: The connecting part is provided with a plurality of first glue passage holes, and correspondingly, the rubber part is formed with a first connecting post passing through the first glue passage holes.

6. The diffuser blade according to claim 1, characterized in that: The stud includes a base plate and a column connected to the top of the base plate. The base plate has a boss, and the column is connected to the top of the boss. The mounting position has a step corresponding to the base plate, and the step covers the base plate. Both the boss and the column are exposed outside the step. The top surface of the boss is flush with the top surface of the step. Correspondingly, the bottom of the mounting base has a recess that matches the step.

7. The diffuser blade according to claim 1, characterized in that: The metal strip has a protrusion corresponding to the mounting hole. The protrusion protrudes from the bottom surface of the metal strip toward the top surface. The mounting hole is located on the protrusion. The upper and lower outer peripheries of the protrusion corresponding to the mounting hole are both provided with annular protrusions.

8. The diffuser blade according to claim 7, characterized in that: A first reinforcing rib is provided on the outer periphery of the annular protrusion located on the bottom surface of the protrusion.

9. The diffuser blade according to claim 1, characterized in that: The metal strip is provided with a second reinforcing rib on both its top and bottom surfaces.

10. The diffuser blade according to claim 1, characterized in that: The metal strip is provided with a plurality of second adhesive passage holes, and correspondingly, the rubber part is formed with a second connecting post passing through the second adhesive passage holes.