Defrosting air door capable of increasing air guide area
By designing a defrost damper structure with an arc-shaped air guide and a flipping mechanism, the problems of small air guide area and poor sealing of traditional automotive air conditioning defrost dampers are solved, achieving a larger air guide area and higher airflow utilization, thus improving the defrosting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional automotive air conditioning defrost dampers suffer from problems such as small air guiding area, large air loss, low airflow utilization rate, and poor sealing.
A defrosting damper structure was designed, comprising a shaft, a damper body, an arc-shaped air guide, a windbreak, and a flipping mechanism. The shaft is driven to rotate by a motor, causing the damper body to swing and the windbreak to flip through the flipping mechanism, thereby increasing the air guide area and dispersing the air to the glass.
The increased airflow area of the air conditioner outlet avoids problems such as excessive air loss and low airflow utilization, while also improving sealing and reducing noise.
Smart Images

Figure CN224060807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of defrosting damper technology, and in particular to a defrosting damper that can increase the air guiding area. Background Technology
[0002] Traditional automotive air conditioning defrost dampers typically employ either a straight damper structure or a curved damper structure. The straight damper structure results in a small air guiding area and occupies a large area of the air outlet duct, leading to significant air loss and low airflow utilization. While the curved damper structure can increase the air guiding area, the seal between the curved edge and the air conditioning unit is not tight, causing air leakage and excessive noise during operation. Summary of the Invention
[0003] The purpose of this utility model is to provide a defrosting damper that can increase the air guiding area, thereby solving at least one of the above-mentioned technical problems. The technical solution of this utility model is as follows:
[0004] A defrosting damper that can increase the air guiding area includes: a shaft, damper bodies fixedly provided on both sides of the shaft, arc-shaped air guiding parts provided on each of the damper bodies, a plurality of through slots spaced apart on one of the damper bodies, a wind-blocking part movably hinged in each of the through slots, and a flipping mechanism that can drive the wind-blocking part to flip under one of the damper bodies.
[0005] Furthermore, the arc-shaped air guide includes an arc-shaped surface disposed above each of the air damper bodies, and a plurality of first air guide grooves are provided at intervals on the arc-shaped surface on the right side. Each of the arc-shaped surfaces and the first air guide grooves are connected to the surface of the shaft body, and a first inclined surface is provided at the connection between the first air guide groove and the shaft body.
[0006] Furthermore, the windbreak includes a hinge plate that is movably hinged in each through slot, and a guide surface that is consistent with the arc surface is provided above each hinge plate. Multiple second guide slots are provided on each guide surface, and a second inclined surface is provided at the right end of each second guide slot.
[0007] Furthermore, the flipping mechanism includes hinge ears spaced apart below one of the damper bodies, a rotating shaft connected and sleeved on each of the hinge ears, connecting rods spaced apart on the rotating shafts, an oblong groove below each of the hinge plates, and a hinge shaft fixed at the end of each of the connecting rods, the hinge shaft being movably disposed within the oblong groove.
[0008] Preferably, a first connector is fixed to the end of the rotating shaft.
[0009] Preferably, a second connector is provided at the end of the shaft.
[0010] Preferably, the shaft body is provided with multiple weight-reducing and reinforcing ribs.
[0011] In summary, the advantages of this utility model over the prior art are:
[0012] This utility model provides a defrosting damper that can increase the air guiding area. In use, the motor inside the vehicle drives the shaft to rotate, causing the shaft to swing each damper body. The damper body opens the air outlet, and the air from the vehicle's air conditioning is delivered to the air outlet through the arc-shaped air guide. The arc-shaped air guide increases the air guiding area output. At the same time, the wind deflector can be rotated by the flipping mechanism, causing the wind deflector to rotate in the through groove. The wind deflector can disperse the air, so that the defrosting air is distributed on the glass, increasing the defrosting area of the glass. Compared with the prior art, it can increase the air guiding area of the air conditioning outlet and avoid large air loss and low air direction utilization. Attached Figure Description
[0013] Figure 1 This is one of the three-dimensional schematic diagrams of this utility model.
[0014] Figure 2 This is a half-sectional schematic diagram of the present invention.
[0015] Figure 3 This is the second three-dimensional schematic diagram of the present invention.
[0016] Figure 4 This is an exploded view of the present invention.
[0017] Explanation of reference numerals in the attached drawings: 1. Shaft; 2. Damper body; 3. Arc-shaped air guide; 4. Through groove; 5. Windproof part; 6. Tilting mechanism; 31. Arc-shaped surface; 32. First air guide groove; 33. First inclined surface; 51. Hinge plate; 52. Air guide surface; 53. Second air guide groove; 54. Second inclined surface; 61. Hinge ear; 62. Rotating shaft; 63. Connecting rod; 64. Waist-shaped groove; 65. Hinge shaft; 621. First connector; 11. Second connector; 12. Weight-reducing reinforcing rib. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0019] like Figures 1 to 4The defrosting damper shown is characterized by comprising: a shaft 1, damper bodies 2 fixedly disposed on both sides of the shaft 1, an arc-shaped air guide portion 3 disposed on each of the damper bodies 2, a plurality of through slots 4 spaced apart on one of the damper bodies 2, a wind baffle portion 5 movably hinged in each of the through slots 4, a flipping mechanism 6 disposed below one of the damper bodies 2 that can drive the wind baffle portion 5 to flip, a first connector 621 fixed at the end of the rotating shaft 62, a second connector 11 disposed at the end of the shaft 1, and a plurality of weight-reducing reinforcing ribs 12 disposed on the shaft 1.
[0020] The above-described defrosting damper, which increases the air guiding area, operates by rotating the shaft 1 driven by a motor inside the vehicle. This causes the shaft 1 to swing the damper bodies 2, opening the air outlets. The air from the vehicle's air conditioning system is then delivered to the air outlets via the arc-shaped air guide 3, increasing the air guiding area. Simultaneously, the deflector 5 can be rotated by the flipping mechanism 6 within the channel 4, allowing it to disperse the airflow. This disperses the defrosting air onto the glass, increasing the defrosting area. Compared to existing technologies, this design increases the air guiding area of the air conditioning system, avoiding significant air loss and low airflow utilization.
[0021] like Figure 1 As shown, in some embodiments of this utility model, the arc-shaped air guide 3 includes an arc-shaped surface 31 disposed above each of the damper bodies 2. A plurality of first air guide grooves 32 are provided at intervals on the arc-shaped surface 31 on the right side. Each of the arc-shaped surfaces 31 and the first air guide grooves 32 are connected to the surface of the shaft body 1. A first inclined surface 33 is provided at the connection between the first air guide groove 32 and the shaft body 1. When the wind blows onto the arc-shaped surface 31 above each of the damper bodies 2, each of the arc-shaped surfaces 31 can guide the wind to the air conditioning outlet and the foot vent outlet respectively over a large area. When the wind is blown, the wind can be concentrated and guided by the first air guide groove 32. The first inclined surface 33 provided at the connection between the first air guide groove 32 and the shaft body 1 can prevent the wind from being scattered due to the right angle when being guided.
[0022] like Figures 1 to 3 As shown, in some embodiments of this utility model, the windbreak part 5 includes a hinge plate 51 that is movably hinged in each through groove 4. Each hinge plate 51 has a guide surface 52 that is consistent with the arc surface 31 above it. A plurality of second guide grooves 53 are provided on each guide surface 52. A second inclined surface 54 is provided at the right end of each second guide groove 53.
[0023] The flipping mechanism 6 includes hinge ears 61 spaced apart below one of the damper bodies 2, a rotating shaft 62 connected and sleeved on each of the hinge ears 61, connecting rods 63 spaced apart on the rotating shafts 62, an oblong groove 64 below each of the hinge plates 51, and a hinge shaft 65 fixed at the end of each of the connecting rods 63, the hinge shaft 65 being movably disposed within the oblong groove 64.
[0024] During normal use, air is guided from the arc-shaped surface 31 on the hinge plate 51 to the air conditioning outlet, and is also concentrated through each of the second air guide ducts 53. When it is necessary to increase the defrosting area, the motor in the vehicle drives the rotating shaft 62 to rotate, so that the rotating shaft 62 rotates on each of the hinge ears 61. At this time, the hinge shaft 65 drives each connecting rod 63 to swing. When the connecting rod 63 swings, it drives the waist-shaped groove 64 to swing through the hinge shaft 65 at its end, and the waist-shaped groove 64 drives the hinge plate 51 to swing.
[0025] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A defrost damper capable of increasing the air guide area, characterized in that, Include: The shaft body (1), the air door body (2) is fixed on both sides of the shaft body (1), the arc air guide part (3) is arranged on each air door body (2), a plurality of through slots (4) are arranged on one of the air door body (2), the windproof part (5) is movably connected in each through slot (4), the turnover mechanism (6) is arranged below one of the air door body (2) and can drive the windproof part (5) to overturn.
2. The defrosting damper capable of increasing the wind area according to claim 1, wherein The arc air guide part (3) includes an arc surface (31) arranged above each air door body (2), a plurality of first air guide grooves (32) are arranged on the right arc surface (31), each arc surface (31) and first air guide groove (32) are connected to the surface of the shaft body (1), and a first inclined surface (33) is arranged at the connection between the first air guide groove (32) and the shaft body (1).
3. The defrosting damper capable of increasing the wind area according to claim 2, wherein The windproof part (5) includes a hinged plate (51) movably connected in each through slot (4), the hinged plate (51) is provided with a wind guide surface (52) consistent with the arc surface (31) above, a plurality of second air guide grooves (53) are arranged on each wind guide surface (52), and a second inclined surface (54) is arranged at the right end of each second air guide groove (53).
4. The defrosting damper capable of increasing the wind area according to claim 3, wherein The turnover mechanism (6) includes a hinged lug (61) arranged below one of the air door body (2), a rotating shaft (62) is connected and sleeved on each hinged lug (61), a connecting rod (63) is arranged on the rotating shaft (62), a waist-shaped slot (64) is arranged below each hinged plate (51), a hinged shaft (65) is fixed on the end of each connecting rod (63), and the hinged shaft (65) is movably arranged in the waist-shaped slot (64).
5. The defrosting damper capable of increasing the wind area according to claim 4, wherein A first connecting head (621) is fixed on the end of the rotating shaft (62).
6. The defrost damper according to claim 1, wherein A second connecting head (11) is arranged on the end of the shaft body (1).
7. The defrost damper according to claim 1, wherein A plurality of lightening reinforcing ribs (12) are arranged on the shaft body (1).