Air door structure of automobile air conditioner air outlet

Abstract

The utility model discloses an air door structure of automobile air conditioner air outlet, including upper grid, lower grid and air door blade, and air door blade rotation is connected on the lower grid, and is equipped with air door anti -drop structure on the upper grid, adopts the air door structure of automobile air conditioner air outlet of the utility model, realizes the location of the pivot of air door blade, guarantees that air door blade installation is reliable.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology. Specifically, this utility model relates to a damper structure for an automotive air conditioning vent. Background Technology

[0002] In the existing technology, the air outlet of automotive air conditioning is mostly in the form of a linkage mechanism. It has a large number of damper components, and the damper blades are not installed firmly enough, which can easily lead to loosening or falling off. This also makes the assembly process difficult. If the damper is not installed properly, it will cause the damper to operate unevenly, which can easily cause vibration and abnormal noise during vehicle operation.

[0003] Utility model patent CN 207077976U, published on March 9, 2018, discloses a pull-out damper structure for an automotive air conditioning vent. It includes a housing and an air duct inside the housing. Within the air duct, along the air outlet direction, are sequentially arranged a damper assembly, a left-right airflow adjustment assembly, and a right-right airflow adjustment assembly. The damper assembly includes two damper plates hinged to the housing. The right-right airflow adjustment assembly slides within the housing. A linkage is installed between the right-right airflow adjustment assembly and the damper assembly. The linkage has external teeth at its upper and lower ends. Gears on the hinge shafts of the two damper plates respectively engage with the external teeth at the upper and lower ends of the linkage's tail. However, this pull-out damper structure for an automotive air conditioning vent does not solve the aforementioned technical problem. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a damper structure for an automotive air conditioning outlet that limits the rotation shaft of the damper blades and ensures reliable installation of the damper blades.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The air vent structure of the car air conditioner includes an upper grille, a lower grille, and air vent blades. The air vent blades are rotatably connected to the lower grille, and the upper grille is provided with an air vent anti-detachment structure.

[0006] The damper blade includes a first blade and a second blade arranged symmetrically. The first blade includes a first mounting shaft, and the second blade includes a second mounting shaft. The axes of the first mounting shaft and the second mounting shaft are on the same straight line. A first bevel gear is provided on the first mounting shaft, and a second bevel gear is provided on the second mounting shaft. The first bevel gear and the second bevel gear are meshed with a drive bevel gear.

[0007] The lower grille includes an inner frame with a mounting groove. The ends of the first and second mounting shafts are each provided with a rotating shaft, which is rotatably connected to the mounting groove. The damper anti-detachment structure includes a limiting block, which is located at the bottom of the upper grille and corresponds to the mounting groove. Both the limiting block and the opening end of the mounting groove are trapezoidal, and the limiting block is located at the opening end of the mounting groove.

[0008] The first mounting shaft has a support shaft at its end, and the second mounting shaft has a rotating groove at its end that mates with the support shaft. The support shaft extends into the rotating groove, and one end of the first mounting shaft abuts against the end of the rotating groove.

[0009] Both the first blade and the second blade have a semi-circular structure; the inner side of the inner frame is also provided with an arc-shaped limiting edge, the outer diameter of the second blade is smaller than the outer diameter of the inner frame and larger than the inner diameter of the arc-shaped limiting edge; the drive bevel gear is provided with an arc-shaped limiting groove.

[0010] The drive bevel gear is connected to a drive rod. The drive rod has protrusions at equal intervals along its outer side in the circumferential direction. There are multiple reinforcing ribs between adjacent protrusions. The length of the protrusions is adapted to the length of the drive rod. The drive bevel gear has a groove in the middle that is adapted to the end of the drive rod.

[0011] The end of the drive rod is provided with a decorative block.

[0012] Both the first and second blades are equipped with baffles.

[0013] Both the first mounting shaft and the second mounting shaft are provided with weight reduction grooves.

[0014] The technical effects of this utility model are as follows: The air damper structure of the car air conditioning vent of this utility model optimizes the assembly structure of the air damper. Corresponding mounting grooves and limiting blocks are set on the grille structure, which reduces the assembly difficulty of the damper blades, limits the rotation axis of the damper blades, improves the problem of the air damper falling off, and avoids the problem of loose assembly of the damper and vibration and abnormal noise during vehicle operation. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following: Figure 1 This is an assembly diagram of the damper structure of the automotive air conditioning vent of this utility model; Figure 2 This is a schematic diagram of the structure of the upper grille and damper blades of this utility model; Figure 3 This is a schematic diagram of the upper grille structure of this utility model; Figure 4 This is a schematic diagram of the structure of the damper blade of this utility model; Figure 5This is a schematic diagram of the structure of the damper blade of this utility model; Figure 6 This is a schematic diagram of the drive rod and drive bevel gear of this utility model.

[0016] The markings in the diagram are as follows: 1. Upper grille; 2. Lower grille; 3. Damper blade; 4. First blade; 5. Second blade; 6. First mounting shaft; 7. Second mounting shaft; 8. First bevel gear; 9. Second bevel gear; 10. Drive bevel gear; 11. Inner frame; 12. Mounting groove; 13. Rotating shaft; 14. Limiting block; 15. Support shaft; 16. Rotating groove; 17. Weight reduction groove; 18. Arc-shaped limiting edge; 19. Arc-shaped limiting groove; 20. Slot; 21. Drive rod; 22. Protrusion; 23. Reinforcing rib; 24. Stop block; 25. Decorative block. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of this application, and to facilitate its implementation.

[0018] like Figure 1 As shown, the damper structure of the automotive air conditioning vent includes an upper grille 1, a lower grille 2, and damper blades 3. The damper blades 3 are rotatably connected to the lower grille 2, and the upper grille 1 is equipped with a damper anti-detachment structure. The damper structure of the automotive air conditioning vent has been optimized for the assembly structure of the damper blades 3. An installation groove 12 and a limiting block 14 are added to the grille to form the damper anti-detachment structure. This design not only simplifies the assembly process of the damper blades 3, but also achieves precise limiting of the damper pivot 13, thereby effectively preventing the damper from loosening, falling off, and causing abnormal noise due to vibration during vehicle operation.

[0019] like Figure 4 and Figure 5 As shown, the damper blade 3 includes a first blade 4 and a second blade 5 symmetrically arranged. The first blade 4 includes a first mounting shaft 6, and the second blade 5 includes a second mounting shaft 7. The axes of the first mounting shaft 6 and the second mounting shaft 7 are collinear. A first bevel gear 8 is provided on the first mounting shaft 6, and a second bevel gear 9 is provided on the second mounting shaft 7. The first bevel gear 8 and the second bevel gear 9 are meshed with a drive bevel gear 10. The above structure realizes the opening and closing action of the damper blade 3. The opening and closing of the damper can be adjusted by the rotation of the drive bevel gear 10. The bevel gear meshing transmission method has good noise reduction, compact structure, greatly reduced installation volume, and convenient operation.

[0020] like Figure 2 and Figure 3As shown, the lower grille 2 includes an inner frame 11, with a mounting groove 12. The ends of the first mounting shaft 6 and the second mounting shaft 7 are both equipped with rotating shafts 13, which are rotatably connected to the mounting groove 12. The damper anti-detachment structure includes a limiting block 14, located at the bottom of the upper grille 1 and corresponding to the mounting groove 12. Both the limiting block 14 and the opening end of the mounting groove 12 are trapezoidal, with the limiting block 14 located at the opening end of the mounting groove 12. The limiting block 14 prevents the rotating shaft 13 from detaching. After the upper grille 1 and lower grille 2 are fixed, the limiting block 14, once installed, will be positioned on one side of the rotating shaft 13, restricting its detachment from the mounting groove 12 and ensuring the long-term stability of the damper. The trapezoidal limiting block 14 matches the trapezoidal opening end of the mounting groove 12, preventing relative rotation between the upper grille 1 and lower grille 2, further enhancing the limiting effect. The trapezoidal design of the opening end of the mounting groove 12 facilitates guidance during installation.

[0021] like Figure 4 and Figure 5 As shown, the first mounting shaft 6 has a support shaft 15 at its end, and the second mounting shaft 7 has a rotating groove 16 that mates with the support shaft 15 at its end. The support shaft 15 extends into the rotating groove 16, and one end of the first mounting shaft 6 abuts against the end of the rotating groove 16. The two damper blades 3 have a rotating structure formed by the support shaft 15 and the rotating groove 16 at their contact ends, allowing both ends of each blade to be rotated and supported, improving stability and preventing the installation from being affected by gravity, vibration, or other factors. This also avoids direct friction between the two blades, improving the smoothness of the damper rotation. The two damper blades 3 using the above structure form an integral structure, allowing them to be disassembled only along the axial direction of the rotating shaft 13, thus further improving the anti-detachment effect. like Figure 4 and Figure 5 As shown, both the first blade 4 and the second blade 5 are semi-circular structures. These structures are adapted to the shape of the damper's inner diameter, allowing the air outlet to be smoothly closed when the two blades are deployed. An arc-shaped limiting edge 18 is also provided on the inner side of the inner frame 11. The outer diameter of the second blade 5 is smaller than the outer diameter of the inner frame 11 but larger than the inner diameter of the arc-shaped limiting edge 18. An arc-shaped limiting groove 19 is provided on the drive bevel gear 10. The arc-shaped limiting edge 18 is used to limit the maximum rotation angle of the damper blade 3, preventing excessive rotation force from causing twisting or blade damage. A protrusion 22 corresponding to the arc-shaped limiting groove 19 can also be provided at the bottom of the upper grille 1, further limiting the maximum rotation angle of the damper blade 3.

[0022] like Figure 6As shown, the drive bevel gear 10 is connected to the drive rod 21. The drive rod 21 has protrusions 22 evenly spaced along its outer circumference. Multiple reinforcing ribs 23 are located between adjacent protrusions 22. The length of each protrusion 22 is matched to the length of the drive rod 21. The drive bevel gear 10 has a slot 20 in its middle that matches the end of the drive rod 21. The drive rod 21 and the drive bevel gear 10 are fixed by a snap-fit ​​connection, eliminating the need for connecting parts and facilitating assembly and maintenance. The drive rod 21 serves as the user's rotary operating end, transmitting power to the drive bevel gear 10 through its end to achieve the opening and closing of the damper. The protrusions 22 not only cooperate with the slot 20 to transmit torque from the drive rod 21 but also, together with the reinforcing ribs 23, enhance the structural strength of the drive rod 21 and extend its service life.

[0023] like Figure 6 As shown, a decorative block 25 is provided at the end of the drive rod 21. The decorative block 25 serves a decorative purpose, and its surface can also be used to attach logos.

[0024] like Figure 5 As shown, both the first blade 4 and the second blade 5 are equipped with a stop block 24. Each of the two damper blades 3 is equipped with a stop block 24, and the two stop blocks 24 are staggered. During the assembly process or when the damper is at its maximum opening, the stop blocks 24 can prevent the damper blades 3 from being over-folded and prevent the blades from directly contacting each other, which could cause structural damage.

[0025] like Figure 5 As shown, both the first mounting shaft 6 and the second mounting shaft 7 are provided with weight-reducing grooves 17. The weight-reducing grooves 17 reduce the rotational resistance of the damper and improve the smoothness of the damper's opening and closing.

[0026] The specific installation method of the air damper structure of the car air conditioning vent is as follows: First, assemble the two damper blades 3, insert the support shaft 15 into the rotating groove 16, and ensure that one end of the first mounting shaft 6 abuts against the rotating groove 16, so that the rotation of the two damper blades 3 is unobstructed and forms a rotational support; then fold the damper blades 3 to reduce the installation obstruction, that is, avoid the difficulty of installation due to their proximity to the inside of the grille when unfolded; after folding, press-fit the rotating shaft 13 of the damper blade 3 into the mounting groove 1 of the lower grille 2. Specifically, the interference fit between the mounting groove 12 and the rotating shaft 13 can be 0.15mm, and the guide angle at the opening end of the mounting groove 12 can be 40°. Next, assemble the upper grille 1 and the drive rod 21, allowing the drive rod 21 to pass through the upper grille 1 and be fixed to the drive bevel gear 10 via a snap-fit ​​connection. Finally, assemble the upper grille 1 and the lower grille 2 into a single unit, with the bevel gears meshing and the limiting block 14 correspondingly positioned at the opening end of the mounting groove 12. This completes the assembly process of the damper blade 3, achieving its anti-detachment effect. After completing the above steps, the entire grille can be installed into the air outlet housing, and then, along with the air outlet housing, installed onto the vehicle's dashboard mounting panel.

[0027] The air vent damper structure of the car air conditioning outlet has been optimized. The assembly structure of the air vent damper is set with corresponding mounting grooves 12 and limiting blocks 14 on the grille structure, which reduces the assembly difficulty of the damper blades 3, and limits the rotation shaft 13 of the damper blades 3. This improves the problem of the air vent damper falling off, avoids the problem of loose assembly of the damper and vibration and abnormal noise during vehicle operation.

[0028] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A damper structure for an automotive air conditioning vent, characterized in that: It includes an upper grille (1), a lower grille (2) and a damper blade (3), wherein the damper blade (3) is rotatably connected to the lower grille (2), and the upper grille (1) is provided with a damper anti-detachment structure.

2. The damper structure of the automotive air conditioning vent according to claim 1, characterized in that: The damper blade (3) includes a first blade (4) and a second blade (5) arranged symmetrically. The first blade (4) includes a first mounting shaft (6), and the second blade (5) includes a second mounting shaft (7). The axes of the first mounting shaft (6) and the second mounting shaft (7) are on the same straight line. A first bevel gear (8) is provided on the first mounting shaft (6), and a second bevel gear (9) is provided on the second mounting shaft (7). The first bevel gear (8) and the second bevel gear (9) are meshed with a drive bevel gear (10).

3. The damper structure of the automotive air conditioning vent according to claim 2, characterized in that: The lower grille (2) includes an inner frame (11), the inner frame (11) is provided with an installation groove (12), and the ends of the first installation shaft (6) and the second installation shaft (7) are both provided with a rotating shaft (13), the rotating shaft (13) is rotatably connected to the installation groove (12); the damper anti-detachment structure includes a limiting block (14), the limiting block (14) is provided at the bottom of the upper grille (1) and corresponds to the installation groove (12), the opening ends of the limiting block (14) and the installation groove (12) are both trapezoidal, and the limiting block (14) is located at the opening end of the installation groove (12).

4. The damper structure of the automotive air conditioning vent according to claim 3, characterized in that: The first mounting shaft (6) has a support shaft (15) at its end, and the second mounting shaft (7) has a rotating groove (16) that cooperates with the support shaft (15) at its end. The support shaft (15) extends into the rotating groove (16), and one end of the first mounting shaft (6) abuts against the end of the rotating groove (16).

5. The damper structure of the automotive air conditioning vent according to claim 3 or 4, characterized in that: The first blade (4) and the second blade (5) are both semi-circular structures; the inner side of the inner frame (11) is also provided with an arc-shaped limiting edge (18), the outer diameter of the second blade (5) is smaller than the outer diameter of the inner frame (11) and larger than the inner diameter of the arc-shaped limiting edge (18); the drive bevel gear (10) is provided with an arc-shaped limiting groove (19).

6. The damper structure of the automotive air conditioning vent according to claim 5, characterized in that: The drive bevel gear (10) is connected to a drive rod (21). The drive rod (21) has protrusions (22) evenly spaced along the circumference on its outer side. There are multiple reinforcing ribs (23) between adjacent protrusions (22). The length of the protrusions (22) is adapted to the length of the drive rod (21). The drive bevel gear (10) has a slot (20) in the middle that is adapted to the end of the drive rod (21).

7. The damper structure of the automotive air conditioning vent according to claim 6, characterized in that: The drive rod (21) has a decorative block (25) at its end.

8. The damper structure of the automotive air conditioning vent according to claim 2, characterized in that: Both the first blade (4) and the second blade (5) are provided with a stop (24).

9. The damper structure of the automotive air conditioning vent according to claim 2, characterized in that: The first mounting shaft (6) and the second mounting shaft (7) are both provided with weight reduction grooves (17).

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