Front defrosting cover plate
The self-sealing air guide mechanism design solves the problem of diffuse reflection caused by the traditional front defrost cover air guide plate, realizes the flat folding of the air guide plate, reduces visual interference, and improves driving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-31
AI Technical Summary
The air deflector of a traditional front defroster cover causes diffuse reflection on the windshield, affecting the driver's visibility.
It adopts a self-sealing air guide mechanism, including an air guide module, motor, gears, rack and pinion and connecting rods. The air guide plate assembly is driven by the motor to fold into a flat plane to reduce diffuse reflection.
It greatly reduces the interference of diffuse reflection on the driver's vision and improves driving safety.
Smart Images

Figure CN224060948U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of automobile engineering technology, more specifically, especially relate to a front defrosting cover plate. BACKGROUND
[0002] The front defrosting cover plate is a key component for managing the defrosting and demisting function of the front windshield in a vehicle, usually made of PP material by injection molding, with flexibility to adapt to thermal deformation, but may cause abnormal gap due to temperature change, some designs adopt an integrated grid structure, enhanced sealing with the vehicle body through cofferdam and sealing strip to avoid air leakage. Through the ventilation hole and the deflector, the airflow is guided to the designated area of the front windshield to achieve defrosting and demisting. The traditional front defrosting cover plate uses a fixed deflector to guide the airflow, so the deflector on the front windshield forms a diffuse reflection, affecting the line of sight of the front windshield.
[0003] Therefore, in view of the above, the existing structure and defects are improved, and a front defrosting cover plate is provided to achieve more practical value. INVENTION CONTENTS
[0004] To solve the above technical problems, the utility model provides a front defrosting cover plate to solve the problem of the front defrosting cover plate of the prior art due to the use of a fixed deflector, which forms diffuse reflection on the front windshield, affecting the line of sight of the front windshield.
[0005] The purpose and effect of the front defrosting cover plate of the utility model are achieved by the following specific technical means:
[0006] A front defrosting cover plate, comprising:
[0007] At least one self-sealing air guide mechanism and a top cover arranged on the self-sealing air guide mechanism, the top cover is provided with an opening corresponding to the self-sealing air guide mechanism;
[0008] The self-sealing air guide mechanism comprises a housing, an air deflector module, a motor, a gear, a rack, a connecting rod one and a connecting rod two, the gear is engaged with the rack, the motor is drivingly connected with the gear, the air deflector module comprises an air deflector assembly one and an air deflector assembly two, the rack is provided with a vertical sliding groove and an L-shaped sliding groove, one end of the connecting rod one is drivingly connected with the air deflector assembly one, one end of the connecting rod two is drivingly connected with the air deflector assembly two, the other end of the connecting rod one is provided with a shaft body one, the other end of the connecting rod two is provided with a shaft body two, the shaft body one is slidingly arranged in the vertical sliding groove, the shaft body two is slidingly arranged in the L-shaped sliding groove, an arc-shaped groove is arranged along the rotation shaft part of the connecting rod one and the connecting rod two, the shaft body one and the shaft body two are arranged in the corresponding arc-shaped grooves.
[0009] Furthermore, it also includes a base, which is provided with at least two arc-shaped grooves.
[0010] Furthermore, it also includes a pressure roller assembly, which includes a frame, rollers, and a central shaft. Rollers are rotatably connected to both ends of the frame, and a central shaft is provided in the middle of the frame, which is connected to the base.
[0011] Furthermore, the first air guide plate assembly is provided with three parallel air guide plates, and the air guide plates of the first air guide plate assembly are all rotatably connected to the second linkage component. The second air guide plate assembly is provided with two parallel air guide plates, and the air guide plates of the second air guide plate assembly are all rotatably connected to the first linkage component. The first linkage component is provided with an elongated groove. A third air guide plate assembly is also provided, and one end of the air guide plate of the third air guide plate assembly is disposed in the elongated groove.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention employs a design that allows the air deflector to flip automatically. After defrosting, the air deflector folds into a flat plane. Because the diffuse reflection surface is relatively flat, it greatly reduces the interference of diffuse reflection on the driver's vision. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a front defrost cover according to the present invention.
[0015] Figure 2 This is an exploded structural diagram of a front defrost cover according to the present invention.
[0016] Figure 3 This is an exploded structural diagram of some components of a front defrost cover plate according to this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the assembly of the air guide plate assembly 1, connecting rod 1, connecting rod 2, air guide plate assembly 2, air guide plate assembly 3, linkage component 1, elongated groove, and linkage component 2 of this utility model.
[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0019] 1. Self-sealing air guide mechanism; 11. Housing; 12. Air guide plate assembly 1; 13. Base; 131. Arc groove; 14. Motor; 15. Gear; 16. Rack; 161. Vertical slide groove; 162. L-shaped slide groove; 17. Connecting rod 1; 171. Shaft 1; 18. Connecting rod 2; 181. Shaft 2; 19. Pressure roller assembly; 191. Frame; 192. Roller; 193. Central shaft; 2. Top cover; 20. Opening; 30. Air guide plate assembly 2; 40. Air guide plate assembly 3; 50. Linkage component 1; 50. Long oval groove; 60. Linkage component 2. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Example:
[0024] As attached Figure 1 To be continued Figure 4 As shown:
[0025] This utility model provides a front defrost cover, comprising:
[0026] At least one self-sealing air guide mechanism 1 and a top cover 2 disposed on the self-sealing air guide mechanism 1, wherein the top cover 2 has an opening 20 corresponding to the self-sealing air guide mechanism 1;
[0027] The self-sealing air guide mechanism 1 includes a housing 11, an air guide module, a motor 14, a gear 15, a rack 16, a first connecting rod 17, and a second connecting rod 18. The gear 15 meshes with the rack 16, and the motor 14 is driven by the gear 15. The air guide module includes a first air guide plate assembly 12 and a second air guide plate assembly 30. The rack 16 is provided with a vertical slide groove 161 and an L-shaped slide groove 162. One end of the first connecting rod 17 is driven by the first air guide plate assembly 12. The second connecting rod 18... One end of the connecting rod is connected to the air guide plate assembly 30 for transmission. The other end of the connecting rod 17 is provided with a shaft 171, and the other end of the connecting rod 18 is provided with a shaft 181. The shaft 171 is slidably disposed in the vertical slide groove 161, and the shaft 181 is slidably disposed in the L-shaped slide groove 162. An arc groove 131 is provided along the rotating shaft of the connecting rod 17 and the connecting rod 18. The shaft 171 and the shaft 181 are both disposed in their corresponding arc grooves 131.
[0028] This embodiment employs a design that allows the air guide plates to flip automatically. After defrosting, the air guide plates fold into flush planes. Because the diffuse reflection surface is relatively flat, the interference of diffuse reflection on the driver's vision is greatly reduced. Specifically, motor 14 drives gear 15 to rotate, gear 15 drives rack 16 to move laterally, and the movement of rack 16 causes connecting rod 17 and connecting rod 18 to rotate along their respective axes, thereby driving air guide plate assembly 12 and air guide plate assembly 30 to flip. The arc-shaped groove 131 limits the rotation angle of connecting rod 17 and connecting rod 18, restricting the range of their rotation angles.
[0029] It also includes a base 13, which has at least two arc-shaped grooves 131.
[0030] It also includes a pressure roller assembly 19, which includes a frame 191, rollers 192, and a central shaft 193. The rollers 192 are rotatably connected to both ends of the frame 191, and the central shaft 193 is located in the middle of the frame 191 and is connected to the base 13. The pressure roller assembly 19 guides the lateral movement of the rack 16, making its movement smoother.
[0031] The first air guide plate assembly 12 has three parallel air guide plates, all of which are rotatably connected to the second linkage 60. The second air guide plate assembly 30 has two parallel air guide plates, all of which are rotatably connected to the first linkage 50. The first linkage 50 has an elongated groove 501. A third air guide plate assembly 40 is also provided, with one end of its air guide plates positioned in the elongated groove 501. The second linkage 60 enables the multiple air guide plates of the first air guide plate assembly 12 to rotate synchronously. The first linkage 50 enables the multiple air guide plates of the third air guide plate assembly 40 to rotate synchronously. The first air guide plate assembly 12, the second air guide plate assembly 30, and the third air guide plate assembly 40 have different angles with the horizontal plane, thus employing different linkage structures to allow them to flip at specific angles.
[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A front defrost cover panel, characterized in that, The utility model relates to a front defrosting cover plate, including: At least one self-sealing air guide mechanism (1) and the top cover (2) of setting on self-sealing air guide mechanism (1), the top cover (2) is provided with the opening (20) corresponding self-sealing air guide mechanism (1); The self-sealing air guide mechanism (1) includes the shell (11), air guide module, motor (14), gear (15), rack (16), connecting rod piece one (17), connecting rod piece two (18), gear (15) is engaged with rack (16), motor (14) is transmission connection with gear (15), air guide module includes air guide plate assembly one (12) and air guide plate assembly two (30), rack (16) is provided with vertical slide groove (161) and L type slide groove (162), one end of connecting rod piece one (17) is transmission connection with air guide plate assembly one (12), one end of connecting rod piece two (18) is transmission connection with air guide plate assembly two (30), the other end of connecting rod piece one (17) is provided with shaft body one (171), the other end of connecting rod piece two (18) is provided with shaft body two (181), shaft body one (171) is slidably arranged in vertical slide groove (161), shaft body two (181) is slidably arranged in L type slide groove (162), along the pivot portion of connecting rod piece one (17) and connecting rod piece two (18) is provided with arc slot (131), and shaft body one (171) and shaft body two (181) are all arranged in its corresponding arc slot (131).
2. The front defrosting cover plate of claim 1, further comprising: a base (13) provided with at least two arc slots (131).
3. A pre-defrost cover panel as claimed in claim 2, characterised in that: a pressure roller assembly (19) including a frame (191), a roller (192), and a middle shaft (193), the frame (191) being rotatably connected to the roller (192) at both ends, the middle shaft (193) being provided in the middle of the frame (191) and connected to the base (13).
4. The front defrosting cover plate of claim 3, wherein: the air guide plate assembly one (12) is provided with three parallel air guide pieces, the air guide pieces of the air guide plate assembly one (12) being rotatably connected to the linkage two (60), the air guide plate assembly two (30) being provided with two parallel air guide pieces, the air guide pieces of the air guide plate assembly two (30) being rotatably connected to the linkage one (50), the linkage one (50) being provided with an oblong slot (501), and the air guide plate assembly three (40) being further provided, one end of the air guide pieces of the air guide plate assembly three (40) being provided in the oblong slot (501).