A defrosting air door for an automobile air conditioner

Abstract

The application provides a defrosting air door of an automobile air conditioner and belongs to the technical field of air doors of automobile air conditioners. The defrosting air door of the automobile air conditioner comprises a defrosting pipeline, a defrosting air outlet of an automobile bridge is made into a pipeline shape, the pipeline is a defrosting pipeline, a rectangular frame is arranged in a horizontal shape inside the defrosting pipeline, a fixing structure is arranged on the top of the rectangular frame and fixed in the defrosting pipeline, a plurality of air door bodies are provided, rotating shafts in an integral structure are arranged at both ends of the air door body, and first rotating holes are arranged at both ends of the frame of the rectangular frame. In the application, the louver door structure is designed, the louver door can disperse the load to each air door, the overall anti-deformation ability is improved, the overall structure is relatively stable, meanwhile, the cross section of the air door is in a water drop shape, the stress of the air door is closer to the center of the rotating shaft, the torque of the single rotating shaft is reduced, and the total torque of the whole is further reduced.

Description

Technical Field

[0001] This application relates to the field of automotive air conditioning dampers, and more specifically, to a defrost damper for automotive air conditioning. Background Technology

[0002] The car's air conditioning system controls the direction and distribution of airflow. When frost or fog appears on the windshield, the system directs warm air to the air vents at the front of the driver's cabin. These vents are defrost vents, which guide the warm air towards the windshield to quickly clear the frost and fog, ensuring clear visibility for the driver and improving driving safety.

[0003] In existing technologies, the defrost dampers of traditional automotive air conditioners typically employ either a straight damper structure or a curved damper structure. When using a straight damper structure, the air guiding area is small and it occupies a large area of ​​the air outlet duct, resulting in defects such as significant air loss and low airflow utilization. While a curved damper structure can increase the air guiding area, the seal between the curved edge and the air conditioning unit is not tight, leading to problems such as air leakage and excessive noise during operation.

[0004] Chinese patent application number 202020558889.6 discloses a defrost damper for an automotive air conditioner, comprising a damper body and a rotating shaft connected to the side of the damper body. The damper body includes an arc-shaped air guide section and a straight sealing section. The arc-shaped air guide section has a semi-circular arc shape in cross-section. One side of the arc-shaped air guide section is connected to the rotating shaft, and the side of the arc-shaped air guide section away from the rotating shaft is connected to the straight sealing section. The surface of the arc-shaped air guide section is provided with reinforcing ribs. Sealing sponges are respectively connected to the two ends of the surface of the arc-shaped air guide section and the surface of the straight sealing section. This patented automotive air conditioner defrost damper simultaneously possesses the sealing reliability of a straight damper and meets the reliability characteristics of an arc-shaped air guide, which can reduce the space required for air duct design, improve airflow utilization, and effectively enhance the overall performance of the automotive air conditioner.

[0005] The above solution also has the following shortcomings: When adjusting the flow rate, the single damper has a large contact area with the air and the force is relatively concentrated. Because the single damper is driven by a single shaft, the single shaft is subjected to a large torque force. Over time, in an environment with a large air conditioning force and a small defrost air flow, the single shaft is prone to deformation or breakage. Utility Model Content

[0006] To overcome the above defrost damper for automotive air conditioning, this application provides a solution that addresses the problem that when adjusting airflow, the single damper has a large contact area with the air and the force is concentrated. Because the single damper is driven by a single shaft, the single shaft is subjected to a large torque force. Over time, in environments with high air conditioning airflow and low defrost airflow, the single shaft is prone to deformation or breakage.

[0007] This application provides a defrost damper for an automotive air conditioner, including:

[0008] Defrosting duct: The defrosting vent on the car dashboard is made into a duct shape; this duct is the defrosting duct.

[0009] A rectangular frame is horizontally positioned inside the defrosting pipe, and a fixing structure is provided at the top of the rectangular frame to fix it inside the defrosting pipe.

[0010] Multiple damper bodies, each damper body has a rotating shaft integrally formed at both ends, and a first rotating hole is opened at both ends of the rectangular frame, and the rotating shafts at both ends of the damper body are respectively rotatably installed in two aligned first rotating holes;

[0011] A rotating mechanism, wherein each of the rotating shafts on one side is connected to the rotating mechanism, and the rotating mechanism causes the rotating shafts connected to it to rotate synchronously in the same direction;

[0012] In the above implementation process, the design of each damper body is similar to the louvered door design in the existing technology. By adopting the louvered door structure design, the louvered door can distribute the load to each damper, improve the overall resistance to deformation, and thus make the overall structure more stable.

[0013] In one specific implementation, the fixing structure includes:

[0014] A limiting frame, wherein the limiting frame and the defrosting pipe are an integral structure, and the limiting frame is located inside the defrosting pipe;

[0015] The top outer side of the rectangular frame is fixed inside the positioning frame, and the entire rectangular frame is slidably inserted into the limiting frame. The positioning frame is used to limit the movement range of the rectangular frame.

[0016] During the above implementation process, the rectangular frame slides and inserts into the limiting frame during installation. The installation is completed when the positioning frame contacts the limiting frame.

[0017] In one specific implementation, threaded holes are provided at the top four corners of the limiting frame, and through holes are provided at the top four corners of the positioning frame, with each through hole being aligned one-to-one with each threaded hole.

[0018] In the above implementation process, the positioning frame and the limiting frame have the same specifications, so that each through hole on the positioning frame is aligned one-to-one with each threaded hole on the limiting frame.

[0019] In one specific implementation, a hexagonal bolt is slidably inserted into the inside of the through hole, and the outer side of the hexagonal bolt is threaded into a corresponding threaded hole.

[0020] In the above process, after the hexagonal bolt is installed in the threaded hole, the screw head of the hexagonal bolt presses the positioning frame against the limiting frame.

[0021] In one specific implementation, the rotating mechanism includes multiple actuating plates, one end of each actuating plate being fixed to a rotating shaft located on the same side, and the outer sides of the actuating plates being connected to a common connecting structure.

[0022] In the above process, a thrust is applied to one end of the actuating plate, which drives the rotating shaft to rotate, and the rotating shaft drives the damper body to rotate.

[0023] In one specific implementation, the connecting structure includes a crossbar, and a plurality of second rotating holes are provided on the outer side of the crossbar. A fixed shaft is rotatably installed in each of the second rotating holes, and each fixed shaft is fixed to the other end of each actuating plate.

[0024] In the above process, when the crossbar moves, the crossbar drives the actuating plate to rotate through the fixed shaft, and the actuating plate drives the rotating shaft to rotate.

[0025] In one specific embodiment, one end of one of the rotating shafts extends out of the defrosting pipe to form a drive shaft;

[0026] In the above implementation process, the drive shaft is provided to facilitate the connection of the actuators on the outside of the defrosting pipe.

[0027] In one specific implementation, the drive shaft has multiple straight grooves parallel to its central axis on the outer side of one end located outside the defrosting pipe.

[0028] In the above implementation process, the straight groove is set to facilitate the application of force to the drive shaft by external actuators.

[0029] In one specific implementation, the cross-section of the damper body is composed of two teardrop shapes, and the teardrop heads overlap each other.

[0030] In the above process, the force on the damper is brought closer to the center of the rotating shaft, reducing the torque of a single rotating shaft, thereby further reducing the overall total torque.

[0031] In one specific implementation, the rotating shaft is located at the middle position of one end of the damper body.

[0032] In the above implementation process, the rotating shaft is set at the middle position of one end of the damper body, mainly so that the force on the rotating shaft is more even.

[0033] Compared with the prior art, the beneficial effects of this application are as follows: This utility model adopts a louvered door structure design, which can distribute the load to each damper, improve the overall resistance to deformation, and thus make the overall structure more stable; at the same time, the cross-section of the damper is teardrop-shaped, which makes the force on the damper closer to the center of the rotating shaft, reduces the torque of a single rotating shaft, and thus further reduces the overall total torque. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a first-person perspective three-dimensional schematic diagram of the defrost damper of an automotive air conditioner provided in the embodiments of this application;

[0036] Figure 2 A second-view perspective three-dimensional structural diagram of the defrost damper of an automotive air conditioner provided for the embodiments of this application;

[0037] Figure 3 A schematic diagram of the internal structure of the defrosting pipe provided in this application embodiment;

[0038] Figure 4 A first-view perspective three-dimensional structural diagram of a rectangular frame provided for an embodiment of this application;

[0039] Figure 5 A schematic diagram of the rectangular frame from a second perspective, provided for an embodiment of this application;

[0040] Figure 6 A schematic diagram of the rectangular frame from a third-view perspective provided for embodiments of this application;

[0041] Figure 7 A three-dimensional structural diagram of the damper body provided for an embodiment of this application;

[0042] Figure 8 A side view of the damper body structure provided for an embodiment of this application.

[0043] In the diagram: 1. Defrosting pipe; 2. Drive shaft; 3. Limiting frame; 4. Positioning frame; 5. Rectangular frame; 6. Through hole; 7. Threaded hole; 8. Rotating shaft; 9. Actuating plate; 10. Fixed shaft; 11. Crossbar; 12. Damper body; 13. Straight groove. Detailed Implementation

[0044] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0045] Please see Figure 1-8 This application provides a defrost damper for an automotive air conditioner, comprising:

[0046] Defrosting duct 1: The defrosting air vent on the car dashboard is made into a duct shape, and this duct is called defrosting duct 1.

[0047] A rectangular frame 5 is horizontally positioned inside the defrosting pipe 1, and a fixing structure is provided at the top of the rectangular frame 5 to fix it inside the defrosting pipe 1.

[0048] Multiple damper bodies 12, each damper body 12 has a rotating shaft 8 integrally formed at both ends, and a first rotating hole is opened at both ends of the rectangular frame 5. The rotating shafts 8 on both ends of the damper body 12 are respectively rotatably installed in two aligned first rotating holes.

[0049] The rotating mechanism has each rotating shaft 8 on one side connected to it, and the rotating mechanism causes the rotating shafts 8 connected to it to rotate synchronously in the same direction.

[0050] As can be seen from the above connection relationship, the design of each damper body 12 is similar to the louvered door design of the existing technology. By adopting the louvered door structure design, the louvered door can distribute the load to each damper, improve the overall deformation resistance, and thus make the overall structure more stable.

[0051] In specific configurations, the fixed structure includes:

[0052] Limiting frame 3 is an integral structure with defrosting pipe 1, and the limiting frame 3 is located inside defrosting pipe 1;

[0053] The top outer side of the positioning frame 4 and the rectangular frame 5 are fixed inside the positioning frame 4. The entire rectangular frame 5 is slidably inserted into the limiting frame 3. The positioning frame 4 is used to limit the movement range of the rectangular frame 5.

[0054] As can be seen from the above connection relationship, during installation, the rectangular frame 5 is slidably inserted into the limiting frame 3. When the positioning frame 4 contacts the limiting frame 3, the installation is completed.

[0055] In the specific setup, threaded holes 7 are provided at the top four corners of the limiting frame 3, and through holes 6 are provided at the top four corners of the positioning frame 4. Each through hole 6 is aligned one-to-one with each threaded hole 7.

[0056] As can be seen from the above connection relationship, the positioning frame 4 and the limiting frame 3 have the same specifications, so that each through hole 6 on the positioning frame 4 is aligned one-to-one with each threaded hole 7 on the limiting frame 3.

[0057] In a specific setup, a hexagonal bolt is slidably inserted into the inside of the through hole 6, and the outer side of the hexagonal bolt is installed in the corresponding threaded hole 7 via threads;

[0058] As can be seen from the above connection relationship, after the hexagonal bolt is installed in the threaded hole 7, the screw head of the hexagonal bolt will press the positioning frame 4 onto the limiting frame 3.

[0059] In a specific configuration, the rotating mechanism includes multiple actuating plates 9, one end of each actuating plate 9 is fixed to a rotating shaft 8 located on the same side, and the outer sides of the actuating plates 9 are connected to a common connecting structure.

[0060] As can be seen from the above connection relationship, when a pushing force is applied to one end of the actuating plate 9, the actuating plate 9 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the damper body 12 to rotate.

[0061] In a specific configuration, the connecting structure includes a crossbar 11, and a plurality of second rotating holes are provided on the outer side of the crossbar 11. A fixed shaft 10 is rotatably installed in each second rotating hole, and each fixed shaft 10 is fixed to the other end of each actuating plate 9.

[0062] As can be seen from the above connection relationship, when the crossbar 11 moves, the crossbar 11 drives the actuating plate 9 to rotate through the fixed shaft 10, and the actuating plate 9 drives the rotating shaft 8 to rotate.

[0063] In a specific configuration, one end of one of the rotating shafts 8 extends out of the defrosting pipe 1 to form a drive shaft 2;

[0064] To supplement the above: the defrosting pipe 1 is equipped with an actuator, which may be composed of a servo motor. The servo motor drives the drive shaft 2 to rotate through the output shaft.

[0065] As can be seen from the above connection relationship, the drive shaft 2 is set up to facilitate the connection of the actuator on the outside of the defrosting pipe 1.

[0066] In a specific configuration, the drive shaft 2 is provided with multiple straight grooves 13 parallel to its central axis on the outer side of one end of the defrosting pipe 1.

[0067] As can be seen from the above connection relationship, the straight groove 13 is set to facilitate the application of force to the drive shaft 2 by external actuators.

[0068] In a specific configuration, the cross-section of the damper body 12 is composed of two teardrop shapes, and the teardrop heads overlap each other.

[0069] As can be seen from the above connection relationship, the force on the damper is brought closer to the center of the rotating shaft, which reduces the torque of a single rotating shaft 8, thereby further reducing the overall total torque.

[0070] In the specific configuration, the rotating shaft 8 is located at the middle position of one end of the damper body 12.

[0071] As can be seen from the above connection relationship, the rotating shaft 8 is located at the middle position of one end of the damper body 12, mainly because the rotating shaft 8 is subjected to more even force.

[0072] The working principle of the defrost damper of an automotive air conditioner is as follows: the actuator causes the drive shaft 2 connected to it to rotate, the drive shaft 2 drives the rotating shaft 8 fixed to it to rotate, the rotating shaft 8 drives the damper body 12 fixed to it to rotate, the actuating plate 9 on the damper body 12 pushes the crossbar 11, the crossbar 11 drives the other actuating plates 9 to rotate, so that each damper body 12 rotates synchronously and in the same direction.

[0073] When warm air passes through each damper body 12, the wind load is distributed to each damper, improving the overall resistance to deformation and making the overall structure more stable. At the same time, the cross-section of the damper is teardrop-shaped, which makes the force on the damper closer to the center of the rotating shaft, reducing the torque of a single rotating shaft 8, thereby further reducing the overall total torque.

[0074] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A defrost damper for an automotive air conditioner, characterized in that, include: Defrosting pipe (1): The defrosting air vent of the car dashboard is made into a pipe shape, which is the defrosting pipe (1). A rectangular frame (5) is horizontally positioned inside the defrosting pipe (1), and a fixing structure is provided at the top of the rectangular frame (5) to fix it inside the defrosting pipe (1). Multiple damper bodies (12), each damper body (12) has a rotating shaft (8) integrally formed with it at both ends, and the rectangular frame (5) has a first rotating hole at both ends. The rotating shaft (8) on both ends of the damper body (12) is rotatably installed in the two aligned first rotating holes respectively. A rotating mechanism, wherein each of the rotating shafts (8) on one side is connected to the rotating mechanism, and the rotating mechanism causes the rotating shafts (8) connected to it to rotate synchronously in the same direction.

2. The defrost damper of an automotive air conditioner according to claim 1, characterized in that, The fixing structure includes: The limiting frame (3) is an integral structure with the defrosting pipe (1), and the limiting frame (3) is located inside the defrosting pipe (1); The top outer side of the rectangular frame (5) is fixed inside the positioning frame (4), and the entire rectangular frame (5) is slidably inserted into the limiting frame (3). The positioning frame (4) is used to limit the movement range of the rectangular frame (5).

3. The defrost damper of an automotive air conditioner according to claim 2, characterized in that, The limiting frame (3) has threaded holes (7) at the top four corners, and the positioning frame (4) has through holes (6) at the top four corners. Each through hole (6) is aligned one-to-one with each threaded hole (7).

4. The defrost damper of an automotive air conditioner according to claim 3, characterized in that, A hexagonal bolt is slidably inserted into the inside of the through hole (6), and the outer side of the hexagonal bolt is threaded into the corresponding threaded hole (7).

5. A defrost damper for an automotive air conditioner according to claim 1, characterized in that, The rotating mechanism includes multiple actuating plates (9), one end of each actuating plate (9) is fixed on a rotating shaft (8) located on the same side, and the outer sides of the actuating plates (9) are connected to a common connecting structure.

6. A defrost damper for an automotive air conditioner according to claim 5, characterized in that, The connecting structure includes a crossbar (11), and a plurality of second rotating holes are provided on the outer side of the crossbar (11). A fixed shaft (10) is rotatably installed in each of the second rotating holes, and each fixed shaft (10) is fixed on the other end of each actuating plate (9).

7. A defrosting damper for an automotive air conditioner according to claim 1, characterized in that, One end of one of the rotating shafts (8) extends out of the defrosting pipe (1) to form a drive shaft (2).

8. A defrost damper for an automotive air conditioner according to claim 7, characterized in that, The drive shaft (2) has multiple straight grooves (13) parallel to its central axis on one end outside the defrosting pipe (1).

9. A defrosting damper for an automotive air conditioner according to claim 1, characterized in that, The cross-section of the damper body (12) is composed of two teardrop shapes, and the teardrop heads overlap each other.

10. A defrost damper for an automotive air conditioner according to claim 1, characterized in that, The rotating shaft (8) is located at the middle of one end of the damper body (12).

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