HVAC rear mode air door structure of automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioners, in particular to an automobile air conditioner HVAC rear mode air door structure which comprises a mode transition air duct body, a rear face blowing air outlet and a rear foot blowing air outlet are formed in one side of the mode transition air duct body, and a warm air inlet and a cold air inlet are formed in the other side of the mode transition air duct body. A first air opening, a second air opening and a third air opening are formed in the circumferential side of the cylindrical air channel, and when the mode air door plate rotates, the first air opening, the second air opening and the third air opening are blocked by the outer side of the mode air door plate. According to the utility model, the mode air door plate is matched with the cylindrical air duct, and the deflectable mode air door plate can be used for respectively blocking the three air ports, so that different mode requirements of the rear mode air door of the automobile air conditioner are met, the use quantity of the air door is reduced, the product cost is reduced, the complexity of parts is reduced, and the reliability of a system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air conditioners, in particular to an automobile air conditioner HVAC rear mode damper structure. Background Art

[0002] The rear mode damper structure in the automotive air conditioning HVAC system is mainly used to control the air distribution in different areas of the vehicle cabin to meet the comfort requirements of passengers. Due to the requirements of different modes of the automotive air conditioning, the rear mode damper structure requires multiple dampers to cooperate with each other, so the number of dampers and corresponding parts is large, which increases the risk of the system to a certain extent. Therefore, the utility model proposes a rear mode damper structure of the automotive air conditioning HVAC to improve this problem. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a car air conditioner HVAC rear mode damper structure, which uses a deflectable mode damper plate to block three air outlets respectively, thereby realizing different mode requirements of the car air conditioner rear mode damper, reducing the number of dampers used, reducing the complexity of components and improving the reliability of the system.

[0004] The automobile air conditioner HVAC rear mode damper structure in the present scheme includes a mode transition duct main body, a rear-blowing face air outlet and a rear-blowing foot air outlet are provided on one side of the mode transition duct main body, and a warm air inlet and a cold air inlet are provided on the other side, a cylindrical duct is arranged in the mode transition duct main body, the cylindrical duct is cylindrical and is rotatably connected with a mode damper plate with its central axis as a rotation axis, the cylindrical duct is provided with a first air outlet, a second air outlet and a third air outlet on the circumferential side, wherein the second air outlet and the third air outlet are respectively connected to the rear-blowing face air outlet and the rear-blowing foot air outlet, the first air outlet is connected to an internal air duct area inside the mode transition duct main body facing the warm air inlet and the cold air inlet, and when the mode damper plate rotates, its outer sides respectively block the first air outlet, the second air outlet and the third air outlet.

[0005] The technical solution further defined in the utility model is:

[0006] Furthermore, an elastic layer abutting against the inner wall of the cylindrical air duct is also provided on the outer side of the mode air door plate.

[0007] Furthermore, the elastic layer includes a damper sponge.

[0008] Furthermore, a cold and warm air door plate is rotatably connected to the main body of the mode transition air duct, and when the cold and warm air door plate rotates, its outer side blocks the warm air inlet and the cold air inlet respectively.

[0009] Furthermore, the rotation axis of the cooling and heating air door plate is parallel to the rotation axis of the mode air door plate.

[0010] Furthermore, the cross section of the mode damper plate on the rotation plane is fan-shaped.

[0011] The beneficial effects of the utility model are as follows: the utility model cooperates with the cylindrical air duct through the mode air damper plate, and utilizes a deflectable mode air damper plate to respectively block three air outlets, thereby realizing the different mode requirements of the rear mode air damper of the automobile air conditioner, reducing the number of air dampers used, reducing product costs, reducing the complexity of parts and components, and improving the reliability of the system; at the same time, in conjunction with the elastic layer transition air duct sealing, the sealing effect of the mode air damper plate can be improved, and the cold and warm air door plates can also be used to respectively block the cold and warm air inlets, working in coordination with the mode air damper plate, to realize the diversified modes of the rear mode air damper structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an internal schematic diagram of the damper structure in the rear-blowing mode in the embodiment of the utility model;

[0013] Figure 2 This is an internal schematic diagram of the air door structure in the rear foot blowing mode in the embodiment of the utility model;

[0014] Figure 3 It is an internal schematic diagram of the damper structure in the rear defrost mode in the embodiment of the utility model;

[0015] Among them: 1. Mode transition air duct main body; 2. Rear blowing face air outlet; 3. Rear blowing foot air outlet; 4. Mode air door plate; 5. Air door sponge; 6. Cold and warm air door plates; 7. Warm air inlet; 8. Cold air inlet; 9. Cylindrical air duct; 10. First air outlet; 11. Second air outlet; 12. Third air outlet. DETAILED DESCRIPTION

[0016] This embodiment provides a rear mode damper structure of an automobile air conditioner HVAC, such as Figure 1 As shown, it includes a mode transition air duct main body 1, which is used to provide a passage for air passing. A rear face air outlet 2 and a rear foot air outlet 3 are opened on one side, and a warm air inlet 7 and a cold air inlet 8 are opened on the other side. A cold and warm air door plate 6 is rotatably connected to the mode transition air duct main body 1. When the cold and warm air door plate 6 rotates, its outer sides respectively block the warm air inlet 7 and the cold air inlet 8 to achieve the opening and closing of the warm air inlet 7 and the cold air inlet 8.

[0017] A cylindrical barrel air duct 9 is arranged in the middle of the mode transition air duct body 1, and a mode air damper plate 4 is rotatably connected with its central axis as the rotation axis. The barrel air duct 9 is provided with a first air outlet 10, a second air outlet 11 and a third air outlet 12 on the circumferential side, wherein the second air outlet 11 and the third air outlet 12 are respectively connected to the rear face air outlet 2 and the rear foot air outlet 3, and the first air outlet 10 is connected to the internal air duct area of ​​the mode transition air duct body 1 facing the warm air inlet 7 and the cold air inlet 8. When the mode air damper plate 4 rotates, its outer side is used to block the first air outlet 10, the second air outlet 11 and the third air outlet 12 respectively, and the mode air damper plate 4 rotates to realize the opening and closing of the three air outlets of the barrel air duct 9, thereby meeting the different requirements of the air damper mode.

[0018] Specifically in the present embodiment, the cross-section of the mode damper plate 4 on its rotation plane is fan-shaped to adapt to the cylindrical tubular air duct 9. At the same time, the outer wall of the mode damper plate 4 is adhered with a damper sponge 5 as an elastic layer, which has better sealing when the mode damper plate 4 blocks each air outlet.

[0019] It should be noted that the rotation of the mode air door plate 4 and the cold and warm air door plate 6 in this embodiment can be achieved by connecting the rotating shaft through a driving mechanism such as a motor in the automobile air conditioner, which will not be described in detail here. Different modes can be achieved by adjusting the deflection of the mode air door plate 4 and the cold and warm air door plate 6, such as Figure 1 , Figure 2 and Figure 3 They are schematic diagrams of the rear blowing surface, rear blowing foot and rear defrost mode of the car air conditioner, which reduces the use of the damper in the rear defrost mode.

[0020] In addition to the above embodiments, the present invention may also have other implementation modes; any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. A rear mode damper structure of an automobile air conditioner HVAC, comprising a mode transition duct body (1), wherein one side of the mode transition duct body (1) is provided with a rear face air outlet (2) and a rear foot air outlet (3), and the other side is provided with a warm air inlet (7) and a cold air inlet (8), wherein: The mode transition air duct body (1) is provided with a cylindrical air duct (9), the cylindrical air duct (9) being cylindrical and rotatably connected to a mode air damper plate (4) with its central axis as a rotation axis, the cylindrical air duct (9) being provided with a first air port (10), a second air port (11) and a third air port (12) on a circumferential side, wherein the second air port (11) and the third air port (12) are respectively connected to a rear face air outlet (2) and a rear foot air outlet (3), the first air port (10) is connected to an internal air duct area of ​​the mode transition air duct body (1) facing a warm air inlet (7) and a cold air inlet (8), and when the mode air damper plate (4) is rotated, its outer side blocks the first air port (10), the second air port (11) and the third air port (12) respectively.

2. The automotive air conditioning HVAC rear mode damper structure according to claim 1, characterized in that: The outer side of the mode air door plate (4) is also provided with an elastic layer which abuts against the inner wall of the cylindrical air duct (9).

3. The automotive air conditioning HVAC rear mode damper structure according to claim 2, characterized in that: The elastic layer comprises a damper sponge (5).

4. The automotive air conditioning HVAC rear mode damper structure according to claim 1, characterized in that: The mode transition air duct body (1) is also rotatably connected to a cold and warm air door plate (6), and when the cold and warm air door plate (6) rotates, its outer side blocks the warm air inlet (7) and the cold air inlet (8) respectively.

5. The automotive air conditioning HVAC rear mode damper structure according to claim 4, characterized in that: The rotation axis of the cooling and heating air door plate (6) is parallel to the rotation axis of the mode air door plate (4).

6. The automotive air conditioning HVAC rear mode damper structure according to claim 1, characterized in that: The cross section of the mode air flap plate (4) on the rotation plane is fan-shaped.

Images