A dual-duct vehicle air conditioning damper device

Abstract

This application relates to a dual-duct vehicle air conditioning damper device, comprising a duct housing, a regulating valve assembly installed within the duct housing, and a drive mechanism for driving the regulating valve assembly. The duct housing has a first duct and a second duct, with a control duct connected to the inner end of the second duct. The regulating valve assembly includes a first valve and a second valve coaxially rotatably arranged within the duct housing. The duct housing has a sealed channel connected to the first duct and rotating with the first valve. The first valve has an eccentrically arranged first drive rod; the second valve has an eccentrically arranged second drive rod. The drive mechanism includes a drive disc rotatably mounted within the duct housing and a drive motor for driving the drive disc to rotate. The drive disc has a first drive groove for inserting the first drive rod and driving the first valve to swing, and a second drive groove for inserting the second drive rod and driving the second valve to swing. This application achieves the switching of four operating modes through a single motor drive.

Description

Technical Field

[0001] This application relates to the field of air conditioning damper adjustment, and in particular to a dual-duct vehicle air conditioning damper device. Background Technology

[0002] In the automotive manufacturing industry, in-vehicle air conditioning is one of the most important components for improving driving and passenger comfort. In-vehicle air conditioning not only needs to effectively regulate the temperature inside the vehicle, but also needs to achieve precise control of airflow volume and direction to meet the personalized needs of different passengers. To adjust the airflow direction at the foot vents of the car's air conditioning system, at least two air ducts are usually installed at the foot vents, with a damper at each duct. By physically blocking or opening specific air ducts, airflow in different directions is directed to the vents.

[0003] The dual-duct vehicle air conditioning damper is a common type of vehicle air conditioning damper, comprising a duct housing and a regulating valve assembly installed inside the duct body. The duct housing contains a first duct and a second duct arranged opposite each other. The duct housing has a first air inlet at the inner end of the first duct and a second air inlet at the inner end of the second duct. The regulating valve assembly includes a first valve plate rotatably mounted inside the duct housing for closing the first air inlet, a first motor for driving the first valve plate to rotate, a second valve plate rotatably mounted inside the duct housing for closing the second air inlet, and a second motor for driving the second valve plate to rotate.

[0004] The aforementioned damper regulating device has four operating modes. In the first operating mode, the first valve plate closes the first air inlet, and the second valve plate closes the second air inlet; both the first and second air ducts are closed. In the second operating mode, the first valve plate closes the first air inlet, and the second valve plate opens the second air inlet; both the first and second air ducts are closed. In the third operating mode, the first valve plate opens the first air inlet, and the second valve plate opens the second air inlet; both the first and second air ducts are open. In the fourth operating mode, the first valve plate opens the first air inlet, and the second valve plate closes the second air inlet; both the first and second air ducts are open. The damper regulating device achieves switching between the four operating modes by controlling the independent rotation of the two valve plates with dual motors.

[0005] In view of the aforementioned technologies, the inventors believe that there is a need to provide a dual-duct vehicle air conditioning damper device that can achieve the above four working modes with only one motor. Utility Model Content

[0006] This application provides a dual-duct vehicle air conditioning damper device, which achieves switching between four working modes using only one drive motor.

[0007] The dual-duct vehicle air conditioning damper device provided in this application adopts the following technical solution:

[0008] A dual-duct vehicle air conditioning damper device includes a duct housing, a regulating valve assembly installed in the duct housing, and a drive mechanism for driving the regulating valve assembly to operate.

[0009] The air duct housing has a first air duct and a second air duct, and the inner end of the second air duct is connected to a control air duct.

[0010] The regulating valve assembly includes a first valve and a second valve, which are coaxially rotatably arranged in the duct housing. The duct housing has a sealing channel connected to the first duct and rotating in a sealed manner with respect to the first valve. The first valve has a first rotating shaft, a first valve plate connected to the first rotating shaft, and an eccentrically arranged first drive rod. The second valve includes a second rotating shaft, a second valve plate connected to the second rotating shaft, and an eccentrically arranged second drive rod.

[0011] The drive mechanism includes a drive disk rotatably mounted on the air duct housing and a drive motor that drives the drive disk to rotate; the drive disk has a first drive groove for inserting the first drive rod and driving the first valve to swing, and a second drive groove for inserting the second drive rod and driving the second valve to swing.

[0012] After being driven by the drive mechanism, the first valve has a first position for covering the inner opening of the first air duct, a second position located inside the sealing channel, a third position located outside the sealing channel, and a fourth position for covering the inner opening of the control air duct.

[0013] After being driven by the drive mechanism, the second valve has a fifth position that covers the outer opening of the control air duct and a sixth position that is disconnected from the control air duct.

[0014] The regulating valve assembly, driven by the driving mechanism, enables the dual-duct vehicle air conditioning damper device to have a first working mode, a second working mode, a third working mode, and a fourth working mode.

[0015] When the dual-duct vehicle air conditioning damper device is in the first working mode, the first valve plate is in the first working position and the second valve plate is in the fifth working position; when the dual-duct vehicle air conditioning damper device is in the second working mode, the first valve plate is in the second working position and the second valve plate is in the sixth working position; when the dual-duct vehicle air conditioning damper device is in the third working mode, the first valve plate is in the third working position and the second valve plate is in the sixth working position; when the dual-duct vehicle air conditioning damper device is in the fourth working mode, the first valve plate is in the fourth working position and the second valve plate is in the sixth working position.

[0016] By adopting the above technical solution, when the dual-duct vehicle air conditioning damper device is working, the drive motor drives the drive disc to rotate and drives the first valve and the second valve to swing through the first drive groove and the second drive groove of the drive disc, so that the first valve and the second valve rotate coaxially and are in different positions, thereby enabling the dual-duct vehicle air conditioning damper device to have multiple working modes to meet different usage needs, and realizing the switching of four working modes by a single motor drive.

[0017] When the dual-duct vehicle air conditioning damper is in the first working mode, the first valve plate is in the first position and the second valve plate is in the fifth position, so that both the first and second air ducts are closed. When the dual-duct vehicle air conditioning damper is in the second working mode, the first valve plate is in the second position and the second valve plate is in the sixth position, so that the first air duct is closed and the second air duct is open. When the dual-duct vehicle air conditioning damper is in the third working mode, the first valve plate is in the third position and the second valve plate is in the sixth position, so that both the first and second air ducts are open. When the dual-duct vehicle air conditioning damper is in the fourth working mode, the first valve plate is in the fourth position and the second valve plate is in the sixth position, so that the first air duct is open and the second air duct is closed.

[0018] Optionally, the second drive groove includes a stationary groove segment and a drive groove segment connected to the stationary groove segment. The drive groove segment is an arc groove, and the axis of the stationary groove segment coincides with the rotation axis of the drive disc. When the second valve is in the fifth position, the second drive rod is arranged in the drive groove segment. When the second valve is in the sixth position, the second drive rod is arranged in the stationary groove segment.

[0019] By adopting the above technical solution, the specific structure of the second drive groove is disclosed. By using the drive groove segment and the stationary groove segment to limit the movement path of the second drive rod, the drive disc can effectively drive the second valve to swing or remain stationary, thereby realizing the switching of the second valve between the fifth and sixth positions, which helps to meet the needs of different working modes of the dual-air duct vehicle air conditioning damper device.

[0020] Optionally, the second rotating shaft is arranged coaxially with the first rotating shaft; the lower end of the second rotating shaft has a second mounting seat for arranging the first rotating shaft, and the first rotating shaft has a first mounting portion that cooperates with the second mounting seat; the duct housing has a first rotating groove for arranging the first rotating shaft at one end near the drive mechanism, and a second rotating groove for arranging the second rotating shaft at one end away from the drive mechanism.

[0021] By adopting the above technical solution, the first mounting part of the first rotating shaft is arranged on the second mounting seat of the second rotating shaft, and the end of the first rotating shaft is arranged in the first rotating groove of the air duct housing, and the end of the second rotating shaft is arranged in the second rotating groove of the air duct housing. This realizes the coaxial rotation arrangement of the first valve and the second valve, so that the first valve and the second valve can be accurately installed and rotate smoothly in the air duct housing, which helps to stably switch the various working modes of the dual air duct vehicle air conditioning damper device.

[0022] Optionally, a first sealing ring is provided on the outer edge of the first valve plate; the air duct housing has a first sealing end face at the inner end of the first air duct for the first valve plate to abut against; the air duct housing has a second sealing end face at the inner end of the control air duct for the first valve plate to abut against.

[0023] By adopting the above technical solution, a first sealing ring is provided on the outer edge of the first valve plate, which, together with the first sealing end face and the second sealing end face on the air duct housing, helps to improve the sealing performance of the first valve plate against the first sealing end face or the second sealing end face, thereby reducing air leakage in the air duct housing and helping to improve the working efficiency of the dual air duct vehicle air conditioning damper device.

[0024] Optionally, a second sealing ring is provided on the outer edge of the second valve plate; the air duct housing has a third sealing end face at the outer end of the control air duct for the second valve plate to abut against.

[0025] By adopting the above technical solution, a second sealing ring is set on the outer edge of the second valve plate, which, together with the third sealing end face on the air duct housing for the second valve plate to abut against, helps to enhance the sealing between the second valve plate and the air duct housing and reduces the air leakage at the outer end opening of the control air duct.

[0026] Optionally, the second rotating shaft has an abutment surface for limiting the first valve plate, and when the first valve is in the fourth position, the first valve plate abuts against the abutment surface.

[0027] By adopting the above technical solution, the contact surface of the second rotating shaft provides a limit for the first valve plate, so that the first valve can make more precise and stable contact when it is in the fourth position, thereby ensuring the reliability of the dual-air duct vehicle air conditioning damper device.

[0028] Optionally, the outer wall of the air duct housing is provided with a mounting column for the drive disc to rotate, and the bottom of the drive disc has a groove along the axial direction that mates with the mounting column; the axis of the mounting column is arranged parallel to the rotation axis of the first valve.

[0029] By adopting the above technical solution, the mounting column on the outer wall of the air duct housing cooperates with the arrangement groove at the bottom of the drive plate, so that the drive plate can be stably rotated and arranged on the air duct housing. Moreover, the axis of the mounting column is arranged parallel to the rotation axis of the first valve, which ensures the stability and accuracy of the drive plate during rotation. This ensures that the drive mechanism can accurately drive the regulating valve assembly to achieve the switching of different working modes of the dual-air duct vehicle air conditioning damper device.

[0030] Optionally, the outer edge of the drive disk has a limiting protrusion, and the outer side wall of the air duct housing is provided with a rotation limiting groove for arranging the limiting protrusion and for limiting the maximum rotation angle of the drive disk.

[0031] By adopting the above technical solution, the limiting protrusion on the outer edge of the drive disc cooperates with the rotation limiting groove on the outer wall of the air duct housing, which ensures that the rotation angle of the drive disc is within a reasonable range, and helps to ensure the stable switching of the four working modes of the dual air duct vehicle air conditioning damper device.

[0032] Optionally, the top of the drive disk is provided with a spline shaft for the drive motor to rotate in conjunction with the spline groove, and the axis of the spline shaft is arranged to coincide with the axis of the drive disk.

[0033] By adopting the above technical solution, the spline shaft and the spline groove of the drive motor are matched, which enables the drive motor to stably drive the drive disk to rotate. The coincidence of the spline shaft and the drive disk axis ensures that the drive disk is subjected to uniform force and rotates smoothly, thereby improving the stability and reliability of the dual-duct vehicle air conditioning damper device.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. A dual-duct vehicle air conditioning damper device, comprising a duct housing, a regulating valve assembly, and a drive mechanism; when the dual-duct vehicle air conditioning damper device is in operation, the drive motor drives the drive disc to rotate and drives the first valve and the second valve to swing through the first drive groove and the second drive groove of the drive disc respectively, so that the first valve and the second valve rotate coaxially and are in different positions, thereby enabling the dual-duct vehicle air conditioning damper device to have multiple working modes to meet different usage requirements, and realizing the switching of four modes by a single motor drive;

[0036] 2. By limiting the movement path of the second drive rod through the drive groove segment and the stationary groove segment, the drive disc can effectively drive the second valve to swing or remain stationary, thereby realizing the switching of the second valve between the fifth and sixth positions, which helps to meet the needs of different working modes of the dual-duct vehicle air conditioning damper device.

[0037] 3. By arranging the first mounting part of the first rotating shaft on the second mounting seat of the second rotating shaft, and arranging the end of the first rotating shaft in the first rotating groove of the air duct housing, and arranging the end of the second rotating shaft in the second rotating groove of the air duct housing, the coaxial rotation arrangement of the first valve and the second valve is realized, so that the first valve and the second valve can be accurately installed and rotate smoothly in the air duct housing, which helps to stably switch the various working modes of the dual air duct vehicle air conditioning damper device. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the dual-duct vehicle air conditioning damper device in the embodiments of this application.

[0039] Figure 2 This is a schematic diagram of the structure of the regulating valve assembly in an embodiment of this application.

[0040] Figure 3 This is a partial schematic diagram of the first housing in an embodiment of this application.

[0041] Figure 4 This is a schematic diagram of the cooperation between the first rotating shaft and the second rotating shaft in an embodiment of this application.

[0042] Figure 5 This is a schematic diagram of the cooperation between the first housing and the drive disk in an embodiment of this application.

[0043] Figure 6 This is a schematic diagram of the drive disk structure in an embodiment of this application.

[0044] Figure 7 This is a schematic diagram of the inner side of the second housing in an embodiment of this application.

[0045] Figure 8 This is a schematic diagram showing the positions of the first valve and the second valve when the dual-duct vehicle air conditioning damper device is in the first working mode in the embodiments of this application.

[0046] Figure 9 This is a schematic diagram showing the positions of the first and second valves when the dual-duct vehicle air conditioning damper device is in the second working mode in this embodiment of the application.

[0047] Figure 10 This is a schematic diagram showing the positions of the first and second valves when the dual-duct vehicle air conditioning damper device is in the third working mode in this embodiment of the application.

[0048] Figure 11 This is a schematic diagram showing the positions of the first and second valves when the dual-duct vehicle air conditioning damper device is in the fourth working mode in this application embodiment.

[0049] Explanation of reference numerals in the attached drawings: 1. Duct housing; 11. First housing; 111. First arranged arc groove; 112. Second arranged arc groove; 113. First rotating groove; 114. Mounting column; 115. Rotation limiting groove; 12. Second housing; 121. Second rotating groove; 13. Sealing channel; 14. First sealing end face; 15. Second sealing end face; 16. Third sealing end face; 2. Regulating valve assembly; 21. First valve element; 211. First rotating shaft; 2111. First mounting base; 2112. First mounting part; 212. First valve plate; 2121. First sealing ring ; 213, First drive rod; 22, Second valve; 221, Second rotating shaft; 2211, Second mounting part; 2212, Second mounting seat; 222, Second valve plate; 2221, Second sealing ring; 223, Second drive rod; 224, Abutment surface; 3, Drive mechanism; 31, Drive disc; 311, Arrangement groove; 312, Spline shaft; 313, Limiting protrusion; 314, First drive groove; 315, Second drive groove; 3151, Stationary groove section; 3152, Drive groove section; 32, Drive motor; 4, First air duct; 5, Second air duct; 6, Control air duct. Detailed Implementation

[0050] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0051] This application discloses a dual-duct vehicle air conditioning damper device. (Refer to...) Figure 1 and Figure 2 The dual-duct vehicle air conditioning damper device includes a duct housing 1, a regulating valve assembly 2 installed within the duct housing 1, and a drive mechanism 3 for actuating the regulating valve assembly 2. The duct housing 1 includes a first housing 11 and a second housing 12 that fit together on the left and right sides, and the drive mechanism 3 is arranged on the outside of the first housing 11. The duct housing 1 has a first air duct 4 and a second air duct 5.

[0052] Reference Figure 2 and Figure 3The regulating valve assembly 2 includes a first valve member 21 and a second valve member 22 coaxially rotatably arranged in the air duct housing 1. The first valve member 21 includes a first rotating shaft 211, a first valve plate 212 connected to the first rotating shaft 211, and an eccentrically arranged first drive rod 213. The second valve member 22 includes a second rotating shaft 221, a second valve plate 222 connected to the second rotating shaft 221, and an eccentrically arranged second drive rod 223. The second rotating shaft 221 has an abutment surface 224 for limiting the first valve plate 212. Eccentric arrangement means that the first drive rod 213 and the second drive rod 223 are parallel to but not coincident with the rotation axis of the first valve member 21. A first sealing ring 2121 is provided on the outer edge of the first valve plate 212. A second sealing ring 2221 is provided on the outer edge of the second valve plate 222. The top of the first housing 11 has a first arrangement arc groove 111 for rotatably arranging the first drive rod 213 and a second arrangement arc groove 112 for rotatably arranging the second drive rod 223.

[0053] Reference Figure 4 and Figure 5 The upper end of the first rotating shaft 211 has a first mounting base 2111 for arranging the second rotating shaft 221, and the second rotating shaft 221 has a second mounting portion 2211 that mates with the first mounting base 2111. The lower end of the second rotating shaft 221 has a second mounting base 2212 for arranging the first rotating shaft 211, and the first rotating shaft 211 has a first mounting portion 2112 that mates with the second mounting base 2212. The inner side of the first housing 11 has a first rotating groove 113 for rotatably arranging the first rotating shaft 211.

[0054] Reference Figure 1 and Figure 5 The drive mechanism 3 includes a drive disk 31 rotatably mounted on the first housing 11 and a drive motor 32 that drives the drive disk 31 to rotate. The drive motor 32 is locked to the outside of the first housing 11 by bolts. The top of the drive disk 31 is provided with a spline shaft 312 for the drive motor 32 to rotate in conjunction with the spline groove, and the axis of the spline shaft 312 is arranged to coincide with the axis of the drive disk 31.

[0055] Reference Figure 3 and Figure 5 The outer wall of the first housing 11 is provided with a mounting column 114 for the drive disk 31 to rotate, and the axis of the mounting column 114 is arranged parallel to the axis of the first rotating shaft 211. The bottom of the drive disk 31 has an arrangement groove 311 along the axial direction that mates with the mounting column 114. The outer edge of the drive disk 31 has a limiting protrusion 313. The outer wall of the first housing 11 is provided with a rotation limiting groove 115 for accommodating the limiting protrusion 313 and for limiting the maximum rotation angle of the drive disk 31. In this embodiment, the rotation limiting groove 115 is an arc groove.

[0056] Reference Figure 6 The drive disk 31 has a first drive groove 314 for inserting a first drive rod 213 and driving the first valve 21 to swing, and a second drive groove 315 for inserting a second drive rod 223 and driving the second valve 22 to swing. The second drive groove 315 includes a stationary groove section 3151 and a drive groove section 3152 connected to the stationary groove section 3151. The drive groove section 3152 is an arc groove, and the axis of the stationary groove section 3151 coincides with the rotation axis of the drive disk 31.

[0057] Reference Figure 7 The duct housing 1 has a sealing channel 13 connected to the first duct 4 and rotating in a sealed manner with the first valve 21. The sealing channel 13 is a fan-shaped channel; when the first valve 21 is positioned within the sealing channel 13, the first duct 4 is closed. The duct housing 1 has a first sealing end face 14 at its inner end in the first duct 4 for the first valve plate 212 to abut against. The inner end of the second duct 5 is connected to a control duct 6. The inner ends of the duct housing 1 and the control duct 6 have second sealing end faces 15 for the first valve plate 212 to abut against. The outer ends of the duct housing 1 and the control duct 6 have third sealing end faces 16 for the second valve plate 222 to abut against. The inner side of the second housing 12 has a second rotating groove 121 for the second rotating shaft 221 to rotate.

[0058] Reference Figures 8 to 11 The first valve 21, driven by the drive mechanism 3, has a first position that covers the inner opening of the first air duct 4, a second position located inside the sealing channel 13, a third position located outside the sealing channel 13, and a fourth position that covers the inner opening of the control air duct 6. When the first valve 21 is in the first position, the outer end of the first valve plate 212 abuts against the first sealing end face 14. When the first valve 21 is in the fourth position, the outer end of the first valve plate 212 abuts against the second sealing end face 15, and the inner end of the first valve plate 212 abuts against the abutment surface 224.

[0059] Reference Figures 8 to 9 The second valve 22, driven by the drive mechanism 3, has a fifth position that closes the outer opening of the control air duct 6 and a sixth position that disengages from the control air duct 6. When the second valve 22 is in the fifth position, the outer end of the second valve plate 222 abuts against the third sealing end face 16, and the second drive rod 223 is arranged in the drive groove section 3152. When the second valve 22 is arranged in the sixth position, the second drive rod 223 is arranged in the stationary groove section 3151.

[0060] Reference Figures 8 to 11 After being driven by the drive mechanism 3, the regulating valve assembly 2 enables the dual-duct vehicle air conditioning damper device to have the following four working modes:

[0061] When the dual-duct vehicle air conditioning damper is in the first working mode, the first valve plate 212 is arranged at the first station and the second valve plate 222 is arranged at the fifth station, so that both the first air duct 4 and the second air duct 5 are in the closed state; when the dual-duct vehicle air conditioning damper is in the second working mode, the first valve plate 212 is arranged at the second station and the second valve plate 222 is arranged at the sixth station, so that the first air duct 4 is in the closed state and the second air duct 5 is in the open state; when the dual-duct vehicle air conditioning damper is in the third working mode, the first valve plate 212 is arranged at the third station and the second valve plate 222 is arranged at the sixth station, so that both the first air duct 4 and the second air duct 5 are in the open state; when the dual-duct vehicle air conditioning damper is in the fourth working mode, the first valve plate 212 is arranged at the fourth station and the second valve plate 222 is arranged at the sixth station, so that the first air duct 4 is in the open state and the second air duct 5 is in the closed state.

[0062] The operation of the aforementioned regulating valve assembly 2 meets the user's needs for different wind directions and enables the switching of four working modes through a single motor drive.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual duct vehicle air conditioning damper device, characterized by comprising: It includes a duct housing (1), a regulating valve assembly (2) installed in the duct housing (1), and a drive mechanism (3) for driving the regulating valve assembly (2) to operate; The air duct housing (1) has a first air duct (4) and a second air duct (5), and the inner end of the second air duct (5) is connected to a control air duct (6); the regulating valve assembly (2) includes a first valve (21) and a second valve (22), the first valve (21) and the second valve (22) being coaxially rotatably arranged in the air duct housing (1); the air duct housing (1) has a sealing channel (13) connected to the first air duct (4) and rotating in a sealed manner with the first valve (21); the first valve (21) has a first rotating shaft (211), a first valve plate (212) connected to the first rotating shaft (211) and an eccentrically arranged first drive rod (213); the second valve (22) includes a second rotating shaft (221), a second valve plate (222) connected to the second rotating shaft (221) and an eccentrically arranged second drive rod (223); The drive mechanism (3) includes a drive disk (31) rotatably mounted on the air duct housing (1) and a drive motor (32) for driving the drive disk (31) to rotate; the drive disk (31) has a first drive groove (314) for inserting the first drive rod (213) and driving the first valve (21) to swing, and a second drive groove (315) for inserting the second drive rod (223) and driving the second valve (22) to swing; After being driven by the drive mechanism (3), the first valve (21) has a first position that covers the inner end opening of the first air duct (4), a second position located inside the sealing channel (13), a third position located outside the sealing channel (13), and a fourth position that covers the inner end opening of the control air duct (6). The second valve (22) has a fifth position that covers the outer opening of the control air duct (6) and a sixth position that is disconnected from the control air duct (6) after being driven by the drive mechanism (3); The regulating valve assembly (2) is driven by the driving mechanism (3) so that the dual-channel vehicle air conditioning damper device has a first working mode, a second working mode, a third working mode and a fourth working mode; When the dual-duct vehicle air conditioning damper device is in the first working mode, the first valve plate (212) is in the first position and the second valve plate (222) is in the fifth position; when the dual-duct vehicle air conditioning damper device is in the second working mode, the first valve plate (212) is in the second position and the second valve plate (222) is in the sixth position; when the dual-duct vehicle air conditioning damper device is in the third working mode, the first valve plate (212) is in the third position and the second valve plate (222) is in the sixth position; when the dual-duct vehicle air conditioning damper device is in the fourth working mode, the first valve plate (212) is in the fourth position and the second valve plate (222) is in the sixth position.

2. The air door device according to claim 1, wherein The second drive groove (315) includes a stationary groove segment (3151) and a drive groove segment (3152) connected to the stationary groove segment (3151). The drive groove segment (3152) is an arc groove, and the axis of the stationary groove segment (3151) coincides with the rotation axis of the drive disk (31). When the second valve (22) is in the fifth position, the second drive rod (223) is arranged in the drive groove section (3152); when the second valve (22) is in the sixth position, the second drive rod (223) is arranged in the stationary groove section (3151).

3. The dual-duct vehicle air conditioning damper device according to claim 1, characterized in that, The second rotating shaft (221) is arranged coaxially with the first rotating shaft (211); the lower end of the second rotating shaft (221) has a second mounting seat (2212) for the first rotating shaft (211) to be arranged, and the first rotating shaft (211) has a first mounting part (2112) that cooperates with the second mounting seat (2212); the air duct housing (1) has a first rotating groove (113) for the first rotating shaft (211) to be arranged rotatably at one end near the drive mechanism (3), and the air duct housing (1) has a second rotating groove (121) for the second rotating shaft (221) to be arranged rotatably at one end away from the drive mechanism (3).

4. The dual duct vehicle air conditioning damper assembly of claim 3, wherein, The outer edge of the first valve plate (212) is provided with a first sealing ring (2121); the air duct housing (1) has a first sealing end face (14) at the inner end of the first air duct (4) for the first valve plate (212) to abut against; the air duct housing (1) has a second sealing end face (15) at the inner end of the control air duct (6) for the first valve plate (212) to abut against.

5. The dual duct vehicle air conditioning damper assembly of claim 4, wherein: The second valve plate (222) is provided with a second sealing ring (2221) on its outer edge; the air duct housing (1) has a third sealing end face (16) at the outer end of the control air duct (6) for the second valve plate (222) to abut against.

6. The dual duct vehicle air conditioning damper assembly of claim 5, wherein, The second rotating shaft (221) has an abutment surface (224) for limiting the first valve plate (212), and when the first valve (21) is in the fourth position, the first valve plate (212) abuts against the abutment surface (224).

7. The dual duct vehicle air conditioning damper assembly of claim 1, wherein: The outer wall of the air duct housing (1) is provided with a mounting column (114) for the drive disc (31) to rotate. The bottom of the drive disc (31) has a groove (311) along the axial direction that mates with the mounting column (114). The axis of the mounting column (114) is arranged parallel to the rotation axis of the first valve (21).

8. The dual duct vehicle air conditioning damper assembly of claim 1, wherein: The outer edge of the drive disk (31) has a limiting protrusion (313), and the outer side wall of the air duct housing (1) is provided with a rotation limiting groove (115) for arranging the limiting protrusion (313) and for limiting the maximum rotation angle of the drive disk (31).

9. The dual duct vehicle air conditioning damper assembly of claim 1, wherein: The top of the drive disk (31) is provided with a spline shaft (312) for the drive motor (32) to rotate in conjunction with the spline groove. The axis of the spline shaft (312) is arranged to coincide with the axis of the drive disk (31).

Images