Air conditioner air inlet structure and vehicle

Abstract

An air conditioner air inlet structure and a vehicle. The air conditioner air inlet structure comprises an air inlet duct (2), an outer circulating channel (23), a damper assembly (3), and a driving mechanism (4). The side wall of the air inlet duct comprises at least one inner circulating air inlet (21), and at least one outer circulating air inlet (20) is formed at the joint of the outer circulating channel and the air inlet duct; the damper assembly is arranged in the air inlet duct, a first opening face (30) and a first closed face (31) of the damper assembly are arranged on the side wall of the damper assembly at an interval, and a second opening face (300) and a second closed face (301) are arranged at the end of the damper assembly close to the outer circulating channel at an interval; and the driving mechanism is used for driving the damper assembly to rotate.

Description

Air conditioning air inlet structure and vehicle Technical Field

[0001] The present application relates to the field of vehicle air-conditioning equipment, and in particular to an air-conditioning air inlet structure and a vehicle. Background Art

[0002] The vehicle's air conditioning system has two air intake modes: one is external circulation mode, where the air outside the cab enters the vehicle's air conditioning system. The other is internal circulation mode, where the air inside the cab enters the vehicle's air conditioning system. The air conditioning inlet structure is used to switch between internal and external circulation. In related technologies, most traditional air conditioners are offset. For example, the air conditioning system of a left-hand drive vehicle is located inside the center dash panel of the vehicle, while the air inlet and blower are located on the right dash panel. This results in a large overall footprint for the air conditioning system, air inlet, and blower, resulting in a small passenger compartment, which affects the leg comfort of the occupants.

[0003] Summary of the Invention

[0004] In view of this, one of the objects of the present invention is to provide an air-conditioning air inlet structure and a vehicle to solve at least some of the problems in the related art.

[0005] In a first aspect, the present application provides an air-conditioning air inlet structure, comprising:

[0006] An air inlet duct, wherein the side wall of the air inlet duct includes at least one internal circulation air inlet;

[0007] An outer circulation channel, at least one outer circulation air inlet is provided at the connection between the outer circulation channel and the air inlet duct, which is connected to the air inlet duct through the at least one outer circulation air inlet, and the positive projection of the fan-shaped area formed by connecting the center line of the inner circulation air inlet and the air inlet duct in the radial direction of the air inlet duct is staggered with the positive projection of the outer circulation air inlet in the radial direction of the air inlet duct;

[0008] The damper assembly is arranged in the air inlet duct and rotates along the axial direction of the air inlet duct. The damper assembly includes at least one first opening surface, at least one first closed surface, at least one second opening surface and at least one second closed surface. The first opening surface and the first closed surface are spaced apart on the side wall of the damper assembly, and the second opening surface and the second closed surface are spaced apart at one end of the damper assembly close to the external circulation channel. The damper assembly rotates around the axial direction of the air inlet duct in the air inlet duct to switch the opening and closing of the external circulation air inlet and the internal circulation air inlet;

[0009] The driving mechanism is provided in the damper assembly and is used for driving the damper assembly to rotate around the axial direction of the air inlet duct in the air inlet duct, so that the damper assembly switches between different rotation positions.

[0010] Optionally, the driving mechanism is used to drive the damper assembly to switch between the first rotation position and the second rotation position;

[0011] When the damper assembly is in the first rotation position, the external circulation air inlet coincides with the second opening surface, and the internal circulation air inlet coincides with the first closed surface, so that the external circulation air inlet is connected to the external circulation channel;

[0012] When the damper assembly is in the second rotation position, the inner circulation air inlet corresponds to and coincides with the first opening surface, and the outer circulation air inlet corresponds to and coincides with the second closed surface, so that the inner circulation air inlet is connected to the air inlet duct.

[0013] Optionally, there are two external circulation air inlets and two internal circulation air inlets, and two first opening surfaces, two first closed surfaces, two second opening surfaces and two second closed surfaces. The central angles corresponding to the external circulation air inlet and the internal circulation air inlet are 90°, the central angles corresponding to the first opening surface and the first closed surface are 90°, and the central angles corresponding to the second opening surface and the second closed surface are 90°.

[0014] Optionally, the external circulation air inlet and the internal circulation air inlet are both set as one, the first opening surface, the first closed surface, the second opening surface and the second closed surface are all set as one, the central angle corresponding to the external circulation air inlet and the internal circulation air inlet is 180°, the central angle corresponding to the first opening surface and the first closed surface is 180°, and the central angle corresponding to the second opening surface or the second closed surface is 180°.

[0015] Optionally, a baffle is provided at the connection between the external circulation channel and the air inlet duct; the fan-shaped area formed by connecting the center line of the internal circulation air inlet and the air inlet duct is projected in the radial direction of the air inlet duct in correspondence with the baffle; the baffle and the external circulation air inlet are staggered in the circumferential direction of the air inlet duct.

[0016] Optionally, one end of the damper assembly is connected to the external circulation channel, and the other end of the damper assembly is provided with an air outlet.

[0017] Optionally, the damper assembly includes a first surface and a second surface spaced apart along the axial direction of the damper assembly, the first surface is provided with a second opening surface and a second closed surface, the second surface is provided with an air outlet, and the second surface is recessed toward the first surface along the axial direction of the damper assembly to form a plurality of weight-reducing fixing holes.

[0018] Optionally, the internal circulation air inlet includes a plurality of air inlet holes arranged in a grid shape.

[0019] Optionally, the air inlet structure of the air conditioner includes a rotating shaft, which is arranged along the center line of the damper assembly. The end of the air inlet duct away from the external circulation channel includes a first fixing part, the middle of the first fixing part includes a first fixing hole, and the middle of a side of the external circulation channel away from the air inlet duct includes a second fixing hole. The rotating shaft can be rotatably passed through the first fixing hole and the second fixing hole.

[0020] In a second aspect, the present application provides a vehicle comprising an air-conditioning air inlet structure as in any of the above embodiments.

[0021] The air conditioning air inlet structure provided in this application includes an air inlet duct, an external circulation duct, a damper assembly, and a drive mechanism. The air inlet duct includes at least one internal circulation air inlet on its sidewall. The external circulation duct includes at least one external circulation air inlet at the junction of the external circulation duct and the air inlet duct. The external circulation duct communicates with the air inlet duct via the at least one external circulation air inlet. The radial projection of the fan-shaped area formed by the connection between the internal circulation air inlet and the centerline of the air inlet duct is staggered with the radial projection of the external circulation air inlet. A damper assembly is disposed within the air inlet duct and rotates axially along the air inlet duct. The damper assembly includes at least one first open surface, at least one first closed surface, at least one second open surface, and at least one second closed surface. The first open surface and the first closed surface are spaced apart on a side wall of the damper assembly, and the second open surface and the second closed surface are spaced apart at one end of the damper assembly near the external circulation channel. The damper assembly rotates about the axial direction of the air inlet duct within the air inlet duct to switch the opening and closing of the external circulation air inlet and the internal circulation air inlet. A drive mechanism is disposed within the damper assembly and is used to drive the damper assembly to rotate about the axial direction of the air inlet duct within the air inlet duct, switching the damper assembly between different rotational positions. The internal circulation air inlet is disposed on the side wall of the air inlet duct, eliminating the need for a separate internal circulation air inlet. Placing the external circulation air inlet at the junction of the external circulation channel and the air inlet duct can shorten the length of the air conditioning air inlet structure in the vehicle body direction. This arrangement provides a simple structure for the air conditioning air inlet structure, occupies a small space, and is versatile enough to accommodate a variety of vehicle models.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a schematic structural diagram of an air conditioner main body according to an exemplary embodiment of the present application;

[0025] FIG2 is a cross-sectional view of an air conditioner main body according to an exemplary embodiment of the present application;

[0026] FIG3 is a schematic structural diagram of an air inlet duct according to an exemplary embodiment of the present application;

[0027] FIG4 is a schematic structural diagram of a damper assembly according to an exemplary embodiment of the present application;

[0028] FIG5 is another structural schematic diagram of a damper assembly according to an exemplary embodiment of the present application;

[0029] FIG6 is a cross-sectional view of an air conditioner main body according to another exemplary embodiment of the present application;

[0030] FIG7 is a schematic structural diagram of an air inlet duct according to another exemplary embodiment of the present application;

[0031] FIG8 is a structural schematic diagram of a damper assembly according to another exemplary embodiment of the present application;

[0032] FIG9 is another structural schematic diagram of a damper assembly according to another exemplary embodiment of the present application. DETAILED DESCRIPTION

[0033] The present application provides an air-conditioning air inlet structure and a vehicle. The air-conditioning air inlet structure includes an air inlet duct, an external circulation channel, a damper assembly, and a drive mechanism. The air inlet duct, wherein the side wall of the air inlet duct includes at least one internal circulation air inlet. The external circulation channel, wherein at least one external circulation air inlet is provided at the connection between the external circulation channel and the air inlet duct, is connected to the air inlet duct through at least one external circulation air inlet. The fan-shaped area formed by connecting the center line of the internal circulation air inlet and the air inlet duct has its radial projection staggered with the radial projection of the external circulation air inlet. A damper assembly is disposed within the air inlet duct and rotates axially along the air inlet duct. The damper assembly includes at least one first open surface, at least one first closed surface, at least one second open surface, and at least one second closed surface. The first open surface and the first closed surface are spaced apart on a side wall of the damper assembly, and the second open surface and the second closed surface are spaced apart at one end of the damper assembly near the external circulation channel. The damper assembly rotates about the axial direction of the air inlet duct within the air inlet duct to switch the opening and closing of the external circulation air inlet and the internal circulation air inlet. A drive mechanism is disposed within the damper assembly and is used to drive the damper assembly to rotate about the axial direction of the air inlet duct within the air inlet duct, switching the damper assembly between different rotational positions. The internal circulation air inlet is disposed on the side wall of the air inlet duct, eliminating the need for a separate internal circulation air inlet. Placing the external circulation air inlet at the junction of the external circulation channel and the air inlet duct can shorten the length of the air conditioning air inlet structure in the vehicle body direction. This arrangement provides a simple structure for the air conditioning air inlet structure, occupies a small space, and is versatile enough to accommodate a variety of vehicle models.

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] Figure 1 is a schematic structural diagram of an air-conditioning main body of an exemplary embodiment of the present application, Figure 2 is a cross-sectional view of an air-conditioning main body of an exemplary embodiment of the present application, and Figure 3 is a schematic structural diagram of an air inlet duct of an exemplary embodiment of the present application. Figure 4 is a schematic structural diagram of a damper assembly of an exemplary embodiment of the present application, and Figure 5 is another schematic structural diagram of a damper assembly of an exemplary embodiment of the present application. Referring to the embodiments shown in Figures 1 to 5, the air-conditioning air inlet structure 1 includes an air inlet duct 2, an external circulation channel 23, a damper assembly 3, and a drive mechanism 4. The side wall of the air inlet duct 2 includes at least one internal circulation air inlet 21. When there are multiple internal circulation air inlets 21, the internal circulation air inlets 21 are arranged in the circumferential direction of the air inlet duct 2 with the central axis of the air inlet duct 2 as the center. The outer circulation channel 23 is provided with at least one outer circulation air inlet 20 at the connection between the outer circulation channel 23 and the air inlet duct 2. The outer circulation air inlet 20 is connected to the air inlet duct 2 through at least one outer circulation air inlet 20. The orthographic projection of the fan-shaped area formed by connecting the inner circulation air inlet and the center line of the air inlet duct in the radial direction of the air inlet duct is staggered with the orthographic projection of the outer circulation air inlet in the radial direction of the air inlet duct. The orthographic projection in the radial direction of the air inlet duct means that the projection surface is parallel to the cross section perpendicular to the central axis of the air inlet duct. The outer circulation air inlet 20 is provided on the cross section where the air inlet duct 2 is connected to the outer circulation channel 23. The orthographic projection of the inner circulation air inlet 21 in the cross section of the air inlet duct 2 is staggered with the outer circulation air inlet 20. The damper assembly 3 is disposed within the air inlet duct 2 and rotates along the axial direction of the air inlet duct 2. The damper assembly 3 includes at least one first opening surface 30, at least one first closed surface 31, at least one second opening surface 300, and at least one second closed surface 301. The first opening surface 30 and the first closed surface 31 are spaced apart on the side wall of the damper assembly 3, and the second opening surface 300 and the second closed surface 301 are spaced apart on an end surface of the damper assembly 3 adjacent to the external circulation passage 23. The damper assembly 3 rotates within the air inlet duct 2 about the axial direction of the air inlet duct 2 to switch the opening and closing of the external circulation air inlet 20 and the internal circulation air inlet 21. When there are two first opening surfaces 30, first closed surfaces 31, second opening surfaces 300, and second closed surfaces 301, the two first opening surfaces 30 are disposed relative to each other in the circumferential direction of the damper assembly 3 with the central axis of the air inlet duct 2 as the center; and the two first closed surfaces 31 are disposed relative to each other in the circumferential direction of the damper assembly 3 with the central axis of the air inlet duct 2 as the center. The damper assembly 3 is provided with first closed surfaces 31 and first open surfaces 30 alternately arranged in the circumferential direction. Two second open surfaces 300 and two second closed surfaces 301 are respectively arranged opposite each other on the cross section where the damper assembly 3 communicates with the external circulation passage 23. Specifically, as shown in Figures 4 and 5, the second closed surfaces 301 and the second open surfaces 300 are alternately arranged on the cross section of the damper assembly 3.The orthographic projection of the first opening surface 30 on the cross section of the damper assembly 3 coincides with the second opening surface 300, and the orthographic projection of the first closed surface 31 on the cross section of the damper assembly 3 coincides with the second closed surface 301. The driving mechanism 4 is provided in the damper assembly 3, and is used to drive the damper assembly 3 to rotate in the air inlet duct 2 around the axial direction of the air inlet duct 2, so that the damper assembly 3 switches between different rotational positions. The internal circulation air inlet 21 is provided on the side wall of the air inlet duct 2, and there is no need to design the internal circulation air inlet 21 separately. The external circulation air inlet 20 is provided at the connection between the external circulation channel 23 and the air inlet duct 2, which can shorten the length of the air-conditioning air inlet structure 1 in the length direction of the vehicle body. With such a configuration, the air-conditioning air inlet structure 1 has a simple structure, occupies a small space, and has universality to adapt to a variety of vehicle models. The air-conditioning body 100 of the present application is centrally arranged at the front of the vehicle, and together with the air-conditioning air inlet structure 1, the volume of the vehicle air-conditioning can be reduced, thereby reserving more space for the wiring of the air-conditioning ducts, the passenger compartment and the engine compartment.

[0036] In some embodiments, the drive mechanism 4 is used to drive the damper assembly 3 to switch between a first rotational position and a second rotational position. The air conditioning air inlet structure 1 of the present application is disposed on the air inlet side of the air conditioning body 100, which includes an internal circulation mode and an external circulation mode. When the damper assembly 3 is in the first rotational position, the external circulation mode is enabled. The external circulation air inlet 20 coincides with the second opening surface 300, and the internal circulation air inlet 21 coincides with the first closed surface 31, connecting the external circulation air inlet 20 to the external circulation channel 23. Outdoor air enters the air inlet duct 2 through the external circulation channel 23, the external circulation air inlet 20, and the second opening surface 300, and then enters the air conditioning body 100 through the air inlet duct 2. When the damper assembly 3 is in the second rotational position, the internal circulation mode is enabled. The internal circulation air inlet 21 coincides with the first opening surface 30, and the external circulation air inlet 20 coincides with the second closed surface 301, connecting the internal circulation air inlet 21 to the air inlet duct 2. Indoor air enters the air inlet duct 2 through the internal circulation air inlet 21 and the first opening surface 30 , and enters the air conditioner main body 100 through the air inlet duct 2 .

[0037] In the embodiments shown in Figures 2 and 3, multiple internal circulation air inlets 21 are relatively arranged on the side walls of the air inlet duct 2. The orthographic projections of the multiple internal circulation air inlets 21 on a cross section perpendicular to the axial direction of the air inlet duct 2 are completely staggered with the multiple external circulation air inlets 20. In the embodiment of the present application, there are two internal circulation air inlets 21, which are relatively arranged on both sides of the circumference of the air inlet duct 2 along the second direction X2. There are two external circulation air inlets 20, which are relatively arranged on both sides of the cross section at the connection between the air inlet duct 2 and the external circulation channel 23 along the first direction X1. The orthographic projections of the internal circulation air inlets 21 on the cross section of the air inlet duct 2 are staggered with the external circulation air inlets 20. In other embodiments, the two internal circulation air inlets 21 are relatively arranged on both sides of the circumference of the air inlet duct 2 along the first direction X1, and the two external circulation air inlets 20 are relatively arranged on both sides of the second direction X2 on the cross section of the connection between the air inlet duct 2 and the external circulation channel 23. The positive projection of the internal circulation air inlet 21 on the cross section of the air inlet duct 2 is staggered with the external circulation air inlet 20. The present application does not limit the positions of the external circulation air inlet 20 and the internal circulation air inlet 21.

[0038] In some embodiments, a baffle 24 is provided at the connection between the outer circulation channel 23 and the air inlet duct 2. The orthographic projection of the fan-shaped area formed by connecting the inner circulation air inlet 21 with the center line of the air inlet duct 2 in the radial direction of the air inlet duct 2 is arranged corresponding to the baffle 24. The baffle 24 and the outer circulation air inlet 20 are staggered in the circumferential direction of the air inlet duct 2. In the embodiment shown in Figure 3, there are two baffles 24, and the two baffles 24 are relatively arranged on the cross section of the connection between the air inlet duct 2 and the outer circulation channel 23. The baffles 24 and the outer circulation air inlet 20 are alternately arranged on the cross section of the air inlet duct 2. In the embodiment of the present application, the central angle corresponding to the baffle 24 is 90°.

[0039] In the embodiments shown in Figures 3 to 5, two external circulation air inlets 20 and two internal circulation air inlets 21 are each provided. Two first opening surfaces 30, first closed surfaces 31, second opening surfaces 300, and second closed surfaces 301 are each provided. The central angles corresponding to the external circulation air inlet 20 and the internal circulation air inlet 21 are respectively 90°, the central angles corresponding to the first opening surface 30 and the first closed surface 31 are respectively 90°, and the central angles corresponding to the second opening surface 300 and the second closed surface 301 are respectively 90°. When the damper assembly 3 is in the first rotational position, the external circulation mode is turned on, the two external circulation air inlets 20 coincide with the two second opening surfaces 300, the two baffles 24 coincide with the two second closed surfaces 301, the two internal circulation air inlets 21 coincide with the two first closed surfaces 31, the two internal circulation air inlets 21 are closed, and the two external circulation air inlets 20 are connected to the external circulation channel 23. When the damper assembly 3 is in the second rotation position, the internal circulation mode is turned on, the two internal circulation air inlets 21 coincide with the two first opening surfaces 30, the two baffles 24 coincide with the two second opening surfaces 300, the two external circulation air inlets 20 coincide with the two second closed surfaces 301, the two external circulation air inlets 20 are closed, and the two internal circulation air inlets 21 are connected to the air inlet duct 2.

[0040] In the embodiment shown in Figure 4, one end of the damper assembly 3 is connected to the external circulation channel 23, and the damper assembly 3 is connected to the external circulation channel 23 through the second opening surface 300. The other end of the damper assembly 3 is provided with an air outlet 33. When the damper assembly 3 is in the first rotational position, the air outlet 33 is connected to the external circulation channel 23 through the second opening surface 300. When the damper assembly 3 is in the second rotational position, the air outlet 33 is connected to the internal circulation air inlet 21 through the first opening surface 30. This arrangement makes the air conditioner air inlet structure 1 simple in structure and occupies little space.

[0041] In the embodiment shown in Figure 5 , the damper assembly 3 includes a first surface 34 and a second surface 35 spaced apart along the axial direction of the damper assembly 3. The first surface 34 is provided with a second open surface 300 and a second closed surface 301. The second surface 35 is provided with an air outlet 33. The second surface 35 is recessed toward the first surface 34 along the axial direction of the damper assembly 3 to form a plurality of weight-reducing fixing holes 36. This arrangement can reduce the weight of the damper assembly 3 while ensuring the stability of the air conditioner inlet structure 1.

[0042] In the embodiment shown in Figures 2 and 3, the internal circulation air inlet 21 includes a plurality of air inlet holes arranged in a grid shape. In this manner, the grid-shaped internal circulation air inlet 21 can block some debris from entering the air-conditioning body 100. In some embodiments, the plurality of air inlet holes are spaced apart along the axial and circumferential directions of the air inlet duct 2. The length range of the air inlet hole is 22mm-25mm, and the length of the air inlet hole can be 22mm, 23mm, 24mm or 25mm, which is not limited in this application. In some embodiments, a filter screen can also be provided on the outside of the internal circulation air inlet 21 and the external circulation air inlet 20 to filter out smaller debris.

[0043] In the embodiment shown in Figures 4 and 5, the air-conditioning air inlet structure 1 includes a rotating shaft 32, which is arranged along the center line of the damper assembly 3. The end of the air inlet duct 2 away from the external circulation channel 23 includes a first fixing portion 200, the middle of the first fixing portion 200 includes a first fixing hole 202, and the middle of the side of the external circulation channel 23 away from the air inlet duct 2 includes a second fixing hole 203. The rotating shaft 32 is rotatably passed through the first fixing hole 202 and the second fixing hole 203. In the embodiment of the present application, the driving mechanism 4 is arranged outside the external circulation channel 23. The driving mechanism 4 drives the rotating shaft 32 to rotate, thereby driving the damper assembly 3 to reciprocate between the first rotation position and the second rotation position. In this way, the external circulation mode and the internal circulation mode of the air-conditioning air inlet structure 1 are accurately switched to avoid mixing of the internal and external circulation air.

[0044] In some embodiments, the driving mechanism 4 is a stepper motor. The stepper motor is simple to control, has high precision and low cost, and can accurately control the rotation angle of the damper assembly 3 to prevent the mixing of the internal and external circulating air.

[0045] Figure 6 is a cross-sectional view of an air conditioner body according to another exemplary embodiment of the present invention, Figure 7 is a schematic diagram of the structure of the air inlet duct according to another exemplary embodiment of the present invention, Figure 8 is a schematic diagram of the structure of the damper assembly according to another exemplary embodiment of the present invention, and Figure 9 is another schematic diagram of the structure of the damper assembly according to another exemplary embodiment of the present invention. The embodiment shown in Figures 6 to 9 is similar to the embodiment shown in Figures 1 to 5, with the main difference being that the internal circulation air inlet 21, the external circulation air inlet 20, the first opening surface 30, the first closed surface 31, the second opening surface 300, and the second closed surface 301 are all provided as one.

[0046] In the embodiments shown in Figures 6 and 7, the inner circulation air inlet 21 is provided at the lower portion of the side wall of the air inlet duct 2, and the outer circulation air inlet 20 is provided at the upper portion of the connection between the outer circulation channel 23 and the air inlet duct 2, so that the orthographic projection of the inner circulation air inlet 21 on the cross section of the air inlet duct 2 does not overlap with the outer circulation air inlet 20. In other embodiments, the inner circulation air inlet 21 may be provided at the upper portion of the side wall of the air inlet duct 2, and the outer circulation air inlet 20 may be provided at the lower portion of the connection between the outer circulation channel 23 and the air inlet duct 2, and this application is not limited thereto.

[0047] In the embodiment shown in Figure 7, a baffle 24 is provided at the junction of the external circulation channel 23 and the air inlet duct 2. The baffle 24 and the orthographic projection of the external circulation air inlet 20 on the cross section of the air inlet duct 2 are staggered. The central angle corresponding to the baffle 24 is 180°.

[0048] In the embodiments shown in Figures 6 to 9, the external circulation air inlet 20 and the internal circulation air inlet 21 are each provided as a single unit. The first opening surface 30, the first closed surface 31, the second opening surface 300, and the second closed surface 301 are each provided as a single unit. The central angle corresponding to the external circulation air inlet 20 and the internal circulation air inlet 21 is 180°. The central angle corresponding to the first opening surface 30 and the first closed surface 31 is 180°, and the central angle corresponding to the second opening surface 300 or the second closed surface 301 is also 180°. When the damper assembly 3 is switched to the first rotational position, the external circulation mode is activated. The external circulation air inlet 20 overlaps with the second opening surface 300, the baffle 24 overlaps with the second closed surface 301, and the internal circulation air inlet 21 overlaps with the first closed surface 31, thus sealing the internal circulation air inlet 21. Outdoor air enters the air inlet duct 2 through the external circulation passage 23, the external circulation air inlet 20, and the second opening surface 300, and then enters the air conditioner body 100 through the air inlet duct 2. When the damper assembly 3 is switched to the second rotation position, the internal circulation mode is turned on, the internal circulation air inlet 21 coincides with the first opening surface 30, the second opening surface 300 coincides with the baffle 24, the external circulation air inlet 20 coincides with the second closed surface 301, and the external circulation air inlet 20 is closed. Indoor air enters the air inlet duct 2 through the internal circulation air inlet 21 and the first opening surface 30, and enters the air conditioner main body 100 through the air inlet duct 2. By cooperating with the rotatable damper assembly 3 through the baffle 24, the internal circulation mode and the external circulation mode can be switched. By setting the external circulation air inlet 20 at the connection between the external circulation channel 23 and the air inlet duct 2, the length of the air conditioner air inlet structure 1 in the length direction of the vehicle body can be shortened. With such a setting, the air conditioner air inlet structure 1 has a simple structure, occupies a small space, and has universality to adapt to a variety of vehicle models.

[0049] In the embodiment shown in Figure 8, a partition 37 is provided in the damper assembly 3, and the partition 37 extends in the axial and radial directions of the damper assembly 3, and the plane where the partition 37 is located is perpendicular to the cross-section of the damper assembly 3. The partition 37 is used to divide the side wall of the damper assembly 3 into a first opening surface 30 and a first closed surface 31. The partition 37 is also used to divide the end of the damper assembly 3 close to the external circulation channel 23 into a second opening surface 300 and a second closed surface 301. A support member 38 is also provided in the damper assembly 3, and the support member 38 is arranged to intersect with the partition 37. In the embodiment of the present application, the support member 38 extends in the axial and radial directions of the damper assembly 3, and the support member 38 and the partition 37 are arranged perpendicular to each other, and the plane where the support member 38 is located is also perpendicular to the cross-section of the damper assembly 3. Such an arrangement can improve the structural stability of the damper assembly 3. The cross-section of the damper assembly 3 refers to the cross-section perpendicular to the central axis of the damper assembly 3.

[0050] In the embodiments shown in Figures 1 to 5 or 6 to 9 of the present application, an air conditioning air inlet structure 1 is applied to a vehicle. The vehicle includes a dash panel 102 extending vertically, an air inlet duct 2 located above the dash panel 102, and an internal circulation air inlet 21 located on the rear side of the dash panel 102. The dash panel 102 is used to prevent exhaust gas, noise, and excess heat from the vehicle's engine compartment from entering the passenger compartment. In this embodiment of the present application, the dash panel 102 is arranged vertically. The vehicle also includes a crossbeam 103, which forms a cavity with the dash panel 102. The crossbeam 103 connects the dash panel 102 to the longitudinal beams on both sides of the engine compartment and the vehicle body, thereby increasing the stiffness and strength of the dash panel 102. This arrangement improves the strength of the dash panel 102 while reducing the space occupied by the dash panel 102, thereby reserving more space for the passenger compartment and engine compartment, and facilitating an architecture that accommodates multiple platforms and vehicle models.

[0051] With reference to Figures 1 and 2, the present application also provides a vehicle comprising an air conditioning inlet structure 1 as described in any of the embodiments of Figures 1 to 5 or Figures 6 to 9 above. The vehicle also includes an air conditioning main body 100, with the air conditioning inlet structure 1 disposed on the air inlet side of the main body 100. The main body 100 also includes a blower 5, a filter element 6, an evaporator 7, a heater core 8, air conditioning ducts 9, and multiple air ducts 10. The blower 5 is configured to draw air from the air conditioning inlet structure 1 into the blower 5 through the rotation of its impeller, and the air enters the main body 100 under the action of centrifugal force. After entering the main body 100, the air is filtered by the filter element 6, absorbs heat through the evaporator 7, or is heated by the heater core 8, and is discharged into the passenger compartment through the multiple air ducts 10. The air conditioning ducts 9 are disposed on the side of the main body 100. The air conditioning inlet structure 1 of the present application occupies a relatively small space, facilitating the arrangement of the air conditioning ducts 9. The air-conditioning body 100 of the present application is centrally arranged at the front of the vehicle, and together with the air-conditioning air inlet structure 1, the volume of the vehicle air-conditioning can be reduced, thereby reserving more space for the wiring of the air-conditioning duct 9, the passenger compartment and the engine compartment.

[0052] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the partial description of the method embodiments. The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without expending creative work.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0054] The above is a detailed introduction to the methods and devices provided in the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the methods and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. An air inlet structure for an air conditioner, characterized in that: include: An air inlet duct, wherein the side wall of the air inlet duct comprises at least one internal circulation air inlet; An outer circulation channel, wherein at least one outer circulation air inlet is provided at the connection between the outer circulation channel and the air inlet duct, and the outer circulation air inlet is connected to the air inlet duct through the at least one outer circulation air inlet, and the fan-shaped area formed by connecting the inner circulation air inlet with the center line of the air inlet duct in the radial direction of the air inlet duct is staggered with the orthographic projection of the outer circulation air inlet in the radial direction of the air inlet duct; A damper assembly is arranged in the air inlet duct and rotates along the axial direction of the air inlet duct, the damper assembly includes at least one first opening surface, at least one first closed surface, at least one second opening surface and at least one second closed surface, the first opening surface and the first closed surface are arranged at intervals on the side wall of the damper assembly, the second opening surface and the second closed surface are arranged at intervals on one end of the damper assembly close to the outer circulation channel, the damper assembly rotates around the axial direction of the air inlet duct in the air inlet duct to switch the opening and closing of the outer circulation air inlet and the inner circulation air inlet; The driving mechanism is arranged on the damper assembly and is used to drive the damper assembly to rotate in the air inlet duct around the axial direction of the air inlet duct, so that the damper assembly switches between different rotation positions.

2. The air inlet structure of the air conditioner according to claim 1, characterized in that: The driving mechanism is used to drive the damper assembly to switch between a first rotation position and a second rotation position; When the damper assembly is in the first rotation position, the outer circulation air inlet coincides with the second opening surface, and the inner circulation air inlet coincides with the first closed surface, so that the outer circulation air inlet is connected to the outer circulation channel; When the damper assembly is in the second rotation position, the inner circulation air inlet corresponds to and overlaps with the first opening surface, and the outer circulation air inlet corresponds to and overlaps with the second closed surface, so that the inner circulation air inlet is connected to the air inlet duct.

3. The air inlet structure of the air conditioner according to claim 1, characterized in that: There are two external circulation air inlets and two internal circulation air inlets, two first opening surfaces, two first closed surfaces, two second opening surfaces and two second closed surfaces, the central angles of the external circulation air inlet and the internal circulation air inlet are 90°, the central angles of the first opening surface and the first closed surface are 90°, and the central angles of the second opening surface and the second closed surface are 90°.

4. The air inlet structure of the air conditioner according to claim 1, characterized in that: The external circulation air inlet and the internal circulation air inlet are both set as one, the first opening surface, the first closed surface, the second opening surface and the second closed surface are all set as one, the central angle corresponding to the external circulation air inlet and the internal circulation air inlet is 180°, the central angle corresponding to the first opening surface and the first closed surface is 180°, and the central angle corresponding to the second opening surface or the second closed surface is 180°.

5. The air inlet structure of the air conditioner according to claim 3 or 4, characterized in that: A baffle is provided at the connection between the outer circulation channel and the air inlet duct, and the fan-shaped area formed by connecting the inner circulation air inlet and the center line of the air inlet duct is projected in the radial direction of the air inlet duct in correspondence with the baffle, and the baffle and the outer circulation air inlet are staggered in the circumferential direction of the air inlet duct.

6. The air inlet structure of the air conditioner according to claim 1, characterized in that: One end of the damper assembly is communicated with the external circulation channel, and the other end of the damper assembly is provided with an air outlet.

7. The air inlet structure of the air conditioner according to claim 6, characterized in that: The damper assembly includes a first surface and a second surface spaced apart along the axial direction of the damper assembly, the first surface is provided with the second opening surface and the second closed surface, the second surface is provided with the air outlet, and the second surface is recessed toward the first surface along the axial direction of the damper assembly to form a plurality of weight-reducing fixing holes.

8. The air inlet structure of the air conditioner according to claim 1, characterized in that: The internal circulation air inlet includes a plurality of air inlet holes arranged in a grid shape.

9. The air inlet structure of the air conditioner according to claim 1, characterized in that: The air-conditioning air inlet structure includes a rotating shaft, which is arranged along the center line of the damper assembly. The end of the air inlet duct away from the external circulation channel includes a first fixing part, the middle of the first fixing part includes a first fixing hole, and the middle of a side of the external circulation channel away from the air inlet duct includes a second fixing hole. The rotating shaft can be rotatably inserted into the first fixing hole and the second fixing hole.

10. A vehicle, characterized in that: It comprises an air-conditioning air inlet structure as described in any one of claims 1 to 9.

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