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, comprising at least one outer circulation air inlet and at least one inner circulation air inlet which are formed along the peripheral side of the air inlet duct; a damper, arranged in the air inlet duct and rotating in the axial direction of the air inlet duct, the side wall of the damper having at least one opening surface and at least one closed surface, and projection planes of the opening surface and the closed surface in the radial direction of the damper being staggered; and a driving mechanism, assembled on the damper and used for driving the damper to rotate in the axial direction of the damper, so that the damper is switched between different positions. The inner circulation air inlet of the air conditioner air inlet structure is formed in the side wall of the air inlet duct, without independently designing an inner circulation air inlet, and a rotatable damper is provided inside the air inlet duct to switch between an inner circulation mode and an outer circulation mode. By means of such an arrangement, the air conditioner air inlet structure has a simple structure, occupies a small space, and has universality to adapt to various vehicle types.

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 air conditioner has two air intake modes: one is the external circulation mode, in which the air outside the cab enters the vehicle air conditioner. The other is the internal circulation mode, in which the air inside the cab enters the vehicle air conditioner. The air conditioner air inlet structure is used to switch between the internal and external circulation states. In related technologies, most traditional air conditioners are offset. For example, the air conditioner 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 of the vehicle. This results in a large overall footprint for the air conditioner, air inlet, and blower, resulting in a small passenger compartment and engine 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] The air inlet duct includes at least one external circulation air inlet and at least one internal circulation air inlet arranged along the circumference of the air inlet duct, wherein the orthographic projections of the internal circulation air inlet and the external circulation air inlet in the radial direction of the air inlet duct are staggered;

[0007] The damper is arranged in the air inlet duct and rotates around the axial direction of the air inlet duct. The side wall of the damper includes at least one open surface and at least one closed surface. The projections of the open surface and the closed surface in the radial direction of the damper are staggered. The damper is used to switch the opening and closing of the external circulation air inlet and the internal circulation air inlet.

[0008] The driving mechanism is assembled on the damper and is used to drive the damper to rotate around the axial direction of the damper so that the damper switches between different positions.

[0009] Optionally, the driving mechanism is used to drive the damper to switch between the first position and the second position;

[0010] When the damper is in the first position, the external circulation air inlet coincides with the open surface, and the internal circulation air inlet coincides with the closed surface;

[0011] When the damper is in the second position, the inner circulation air inlet coincides with the open surface, and the outer circulation air inlet coincides with the closed surface.

[0012] Optionally, the air inlet duct includes a cylindrical duct body and an external circulation channel connected to the duct body, the external circulation air inlet is located on the side wall of the duct body, and the external circulation air inlet is connected to the external circulation channel.

[0013] Optionally, the outer circulation air inlet and the inner circulation air inlet are both set to one, the opening surface and the closed surface are both set to one, and the central angles corresponding to the opening surface and the closed surface are 180° respectively.

[0014] Optionally, there are two external circulation air inlets and two internal circulation air inlets, two opening surfaces and two closed surfaces, and the central angles corresponding to the opening surfaces and the closed surfaces are 90° respectively.

[0015] Optionally, one end of the damper is a closed structure, the driving mechanism is arranged outside the closed structure, and the other end of the damper is provided with an air outlet.

[0016] Optionally, the external circulation air inlet is arranged on the side wall of the air inlet duct and close to the side of the driving mechanism, and the internal circulation air inlet is arranged on the side wall of the air inlet duct and close to the side of the air outlet.

[0017] Optionally, the external circulation air inlet includes a plurality of air inlet holes arranged in a grid shape, and the internal circulation air inlet includes a plurality of air inlet holes arranged in a grid shape, and the plurality of air inlet holes are arranged at intervals along the axial and circumferential directions of the air inlet duct.

[0018] Optionally, the damper includes a rotating shaft, which is arranged along the center line of the damper, and a first fixing part and a second fixing part are respectively provided at both ends of the air inlet duct, the middle part of the first fixing part includes a first hole, the middle part of the second fixing part includes a second hole, the orthographic projections of the first fixing part and the second fixing part on the cross section of the damper intersect, and the rotating shaft is fixed to the first hole and the second hole.

[0019] In a second aspect, the present application provides a vehicle comprising an air-conditioning air inlet structure as described in any of the above embodiments.

[0020] The air conditioning air inlet structure provided herein includes an air inlet duct, including an external circulation air inlet and an internal circulation air inlet that are staggered. The air inlet duct includes at least one external circulation air inlet and at least one internal circulation air inlet arranged along the circumference of the air inlet duct, with the radial projections of the internal circulation air inlet and the external circulation air inlet staggered. A damper is disposed within the air inlet duct and rotates about the axial direction of the air inlet duct. The sidewall of the damper includes at least one open surface and at least one closed surface, with the radial projections of the open surface and the closed surface staggered. The damper is used to switch between opening and closing the external circulation air inlet and the internal circulation air inlet. A drive mechanism is assembled with the damper and is used to drive the damper to rotate about the axial direction of the damper, switching the damper between different positions. The internal circulation air inlet of the air conditioning air inlet structure is disposed on the sidewall of the air inlet duct, eliminating the need for a separate internal circulation air inlet. A rotatable damper is disposed within the air inlet duct to switch between internal and external circulation modes. With such arrangement, the air-conditioning air inlet structure 1 has a simple structure, occupies a small space, and is versatile enough to adapt to various vehicle models.

[0021] 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

[0022] 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.

[0023] FIG1 is a schematic structural diagram of an air conditioner main body according to an exemplary embodiment of the present application;

[0024] FIG2 is a cross-sectional view of an air conditioner main body according to an exemplary embodiment of the present application;

[0025] FIG3 is a schematic structural diagram of an air inlet duct according to an exemplary embodiment of the present application;

[0026] FIG4 is a schematic structural diagram of a damper assembly according to an exemplary embodiment of the present application;

[0027] FIG5 is another structural schematic diagram of a damper assembly according to an exemplary embodiment of the present application;

[0028] FIG6 is a cross-sectional view of an air conditioner main body according to another exemplary embodiment of the present application;

[0029] FIG7 is a schematic structural diagram of an air inlet duct according to another exemplary embodiment of the present application;

[0030] FIG8 is a structural schematic diagram of a damper assembly according to another exemplary embodiment of the present application;

[0031] FIG9 is another schematic structural diagram of a damper assembly according to another exemplary embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application provides an air conditioning air inlet structure and a vehicle. The air conditioning air inlet structure includes an air inlet duct, a damper, and a drive mechanism. The air inlet duct includes an outer circulation air inlet and an inner circulation air inlet that are staggered. The air inlet duct includes at least one outer circulation air inlet and at least one inner circulation air inlet arranged along the circumference of the air inlet duct, with the inner circulation air inlet and the outer circulation air inlet being staggered in their radial projections. The damper is disposed within the air inlet duct and rotates about the axial direction of the air inlet duct. The sidewall of the damper includes at least one open surface and at least one closed surface, with the radial projections of the open surface and the closed surface being staggered. The damper is used to switch between opening and closing the outer circulation air inlet and the inner circulation air inlet. The drive mechanism is assembled with the damper and is used to drive the damper to rotate about its axial direction, switching the damper between different positions. The inner circulation air inlet of the air conditioning air inlet structure is disposed on the sidewall of the air inlet duct, eliminating the need for a separate inner circulation air inlet. A rotatable damper is provided inside the air inlet duct to switch between the internal circulation mode and the external circulation mode. With this arrangement, the air-conditioning air inlet structure 1 has a simple structure, occupies a small space, and is versatile enough to adapt to a variety of vehicle models.

[0033] 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.

[0034] Referring to Figures 1 to 5 , Figure 1 is a schematic structural diagram of an air conditioner main body according to an exemplary embodiment of the present application; Figure 2 is a cross-sectional view of an air conditioner main body according to an exemplary embodiment of the present application; Figure 3 is a schematic structural diagram of an air conditioner air inlet structure according to an exemplary embodiment of the present application; Figure 4 is a schematic structural diagram of an air conditioner air inlet structure according to another exemplary embodiment of the present application; and Figure 5 is another schematic structural diagram of a damper assembly according to an exemplary embodiment of the present application. Referring to the embodiments shown in Figures 1 to 5 , the present application provides an air conditioner air inlet structure 1 comprising an air inlet duct 2. The air inlet duct 2 includes at least one external circulation air inlet 20 and at least one internal circulation air inlet 21 arranged along the circumference of the air inlet duct 2. The external circulation air inlet 20 and the internal circulation air inlet 21 are arranged circumferentially about the central axis of the air inlet duct 2. The orthographic projections of the external circulation air inlet 20 and the internal circulation air inlet 21 in the radial direction of the air inlet duct 2 are offset from each other. A damper 3 is disposed within the air inlet duct 2 and rotates about the axial direction of the air inlet duct 2. The side wall of the damper 3 includes at least one open surface 30 and at least one closed surface 31, and the open surface 30 and the closed surface 31 are staggered in the radial projection of the damper 3. The open surface 30 and the closed surface 31 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, and are staggered with each other along the circumferential direction of the air inlet duct 2. The damper 3 is used to switch the opening and closing of the external circulation air inlet 20 and the internal circulation air inlet 21. The driving mechanism 4 is assembled to the damper 3 and is used to drive the damper 3 to rotate around the axial direction of the damper 3 so that the damper 3 switches between different positions. Among them, the orthographic projection / projection surface in the radial direction of the air inlet duct 2 refers to the surface that the projection surface is parallel to the cross section perpendicular to the central axis of the air inlet duct 2. The orthographic projection / projection surface in the radial direction of the damper 3 refers to the surface that the projection surface is parallel to the cross section perpendicular to the central axis of the damper 3. The internal circulation air inlet 21 of the air conditioning air inlet structure 1 is arranged on the side wall of the air inlet duct 2, and there is no need to design a separate internal circulation air inlet 21. A rotatable damper 3 is provided inside the air inlet duct 2 to switch between internal circulation mode and external circulation mode. With this arrangement, the air conditioning air inlet structure 1 has a simple structure, occupies a small space, and is versatile enough to adapt to a variety of vehicle models. The air conditioning main body 100 of the present application is centrally arranged at the front of the vehicle. In combination with the air conditioning air inlet structure 1, the volume of the vehicle air conditioner can be reduced, thereby reserving more space for the routing of air conditioning pipes, the passenger compartment, and the engine compartment.

[0035] In some embodiments, the drive mechanism 4 is configured to switch the damper 3 between a first position and a second position. When the damper 3 is in the first position, the external circulation air inlet 20 overlaps with the opening surface 30, and the internal circulation air inlet 21 overlaps with the closed surface 31, thereby opening the external circulation air inlet 20 and closing the internal circulation air inlet 21. When the damper 3 is in the second position, the internal circulation air inlet 21 overlaps with the opening surface 30, and the external circulation air inlet 20 overlaps with the closed surface 31, thereby opening the internal circulation air inlet 21 and closing the external circulation air inlet 20. The air conditioner air inlet structure 1 of the present application is disposed on the air inlet side of the air conditioner main body 100, which includes both internal and external circulation modes. When the damper 3 is in the first position, the external circulation mode is on, and air outside the cab enters the air conditioner main body 100 through the external circulation air inlet 20 and the opening surface 30. When the damper 3 is in the second position, the internal circulation mode is on, and air inside the cab enters the air conditioner main body 100 through the internal circulation air inlet 21 and the opening surface 30.

[0036] 2 and 3 , in some embodiments, the air inlet duct 2 includes a cylindrical duct body 22 and an external circulation channel 23 connected to the duct body 22. The internal circulation air inlet 21 and the external circulation air inlet 20 are located on the sidewalls of the duct body 22, and the external circulation air inlet 20 is connected to the external circulation channel 23. Air outside the vehicle passes through the external circulation channel 23 and the grid-shaped external circulation air inlet 20 into the air conditioner body 100.

[0037] Referring to Figures 2 to 5 , the external circulation air inlet 20 and the internal circulation air inlet 21 are each provided as a single unit, and the opening surface 30 and the closed surface 31 are each provided as a single unit. The central angles corresponding to the opening surface 30 and the closed surface 31 are each 180°. In the embodiment of the present application, the damper 3 is a cylindrical structure, with the opening surface 30 and the closed surface 31 corresponding to the central angles corresponding to the opening surface 30 and the closed surface 31 being 180°. The opening surface 30 and the closed surface 31 are divided along the axial direction of the damper 3. The opening surface 30 and the closed surface 31 are arranged circumferentially around the central axis of the damper 3, and the orthographic projections of the opening surface 30 and the closed surface 31 in the radial direction of the damper 3 are staggered. A frame 301 is provided in the middle of the opening surface 30 to enhance the structural stability of the damper 3. The opening surface 30 includes multiple vents 300, which are separated by the frame 301. This arrangement ensures that the volume of the air conditioning air inlet structure 1 is relatively small while increasing the area of ​​the vents 300 to increase the air intake. In other embodiments, the central angles corresponding to the opening surface 30 and the closed surface 31 are not greater than 180°. The central angle corresponding to the opening surface 30 needs to be greater than the central angle corresponding to the external circulation air inlet 20 or the internal circulation air inlet 21, and the central angle corresponding to the closed surface 31 needs to be greater than the central angle corresponding to the external circulation air inlet 20 or the internal circulation air inlet 21, so as to ensure the sealing of the damper 3.

[0038] In the embodiment shown in FIG3 , the outer circulation air inlet 20 is provided at the upper portion of the side wall of the air inlet duct 2, and the inner circulation air inlet 21 is provided at the lower portion of the side wall of the air inlet duct 2. The radial projections of the outer circulation air inlet 20 and the inner circulation air inlet 21 in the air inlet duct 2 are completely staggered. With such an arrangement, there is no need to separately arrange the inner circulation air inlet 21. In addition, the outer circulation channel 23 is arranged near the lower crossbeam 101 of the front windshield of the vehicle, and the outer circulation air inlet 20 is arranged on the side close to the drive mechanism 4 and at the upper portion of the side wall of the air inlet duct 2. The structure of the outer circulation air inlet 20 is simple, and the length of the outer circulation channel 23 is shortened, which can reduce costs and reduce noise in the outer circulation channel 23.

[0039] In the embodiment shown in Figures 4 and 5, one end of the damper 3 is a closed structure, the drive mechanism 4 is located outside the closed structure, and the other end of the damper 3 is provided with an air outlet 33. When the damper 3 is in the first position, air from the external circulation enters the damper 3 through the external circulation air inlet 20 and enters the air conditioner main body 100 through the air outlet 33. When the drive mechanism 4 rotates the damper 3, causing the damper 3 to be in the second position, air from the internal circulation enters the damper 3 through the internal circulation air inlet 21 and enters the air conditioner main body 100 through the air outlet 33. This configuration simplifies the air conditioner air inlet structure 1 and prevents mixing of the internal and external circulation air.

[0040] Referring to Figure 4 , in some embodiments, the damper 3 includes a rotating shaft 32 disposed along the centerline of the damper 3. A first fixing portion 200 and a second fixing portion 201 are disposed at each end of the air inlet duct 2. Specifically, the first fixing portion 200 is located at one end of the air inlet duct 2, and the second fixing portion 201 is located at the other end of the air inlet duct 2. The first fixing portion 200 includes a first hole 202 in the middle, and the second fixing portion 201 includes a second hole 203 in the middle. The orthographic projections of the first fixing portion 200 and the second fixing portion 201 on the cross-section of the damper 3 intersect. The rotating shaft 32 rotatably passes through the first hole 202 and the second hole 203. The rotating shaft 32 engages with the first hole 202 and the second hole 203. A driving mechanism 4 is disposed at one end of the rotating shaft 32 and is located outside the air inlet duct 2. In the embodiment of the present application, the driving mechanism 4 is disposed outside the second fixing portion 201. The driving mechanism 4 drives the rotating shaft 32 to rotate, thereby driving the damper 3 to reciprocate between the first position and the second position, thereby accurately switching the external circulation mode and the internal circulation mode of the air-conditioning air inlet structure 1 to avoid mixing of the internal and external circulation air.

[0041] In the embodiment of the present application, 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 3 to prevent the mixing of the internal and external circulating air.

[0042] Referring to Figure 3, in some embodiments, the external circulation air inlet 20 includes a plurality of air inlet holes arranged in a grid pattern, and the internal circulation air inlet 21 includes a plurality of such air inlet holes arranged in a grid pattern. With this arrangement, the grid-like external circulation air inlet 20 and the internal circulation air inlet 21 can prevent some debris from entering the air conditioner body 100.

[0043] In some embodiments, multiple air inlet holes are spaced apart axially and circumferentially along the air inlet duct 2. Referring to Figure 3 , in an embodiment of the present application, the length of the multiple air inlet holes ranges from 22 mm to 25 mm. The lengths of the multiple air inlet holes can be 22 mm, 23 mm, 24 mm, or 25 mm, but this is not a limitation of the present application. In some embodiments, filters can be installed outside the external circulation air inlet 20 and the internal circulation air inlet 21 to filter out smaller debris.

[0044] 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. 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 primary difference being that multiple internal circulation air inlets 21, external circulation air inlets 20, opening surfaces 30, and closed surfaces 31 are provided. The following embodiment will be described using the example of two internal circulation air inlets 21, two external circulation air inlets 20, two opening surfaces 30, and two closed surfaces 31. The two external circulation air inlets 20 and two internal circulation air inlets 21 are arranged circumferentially of the air inlet duct 2, centered on the central axis of the air inlet duct 2. The radial projections of the external circulation air inlets 20 and the internal circulation air inlets 21 in the air inlet duct 2 are offset from each other. The two opening surfaces 30 and the two closing surfaces 31 are relatively arranged in the circumferential direction of the air inlet duct 2 with the central axis of the air inlet duct 2 as the center.

[0045] 6 to 9 , there are two external circulation air inlets 20 and two internal circulation air inlets 21, and two opening surfaces 30 and two closed surfaces 31. The central angles of the opening surfaces 30 and the closed surfaces 31 are 90° respectively. The opening surfaces 30 and the closed surfaces 31 are spaced apart in the circumferential direction of the air inlet duct 2. The opening surfaces 30 and the closed surfaces 31 can overlap with the external circulation air inlet 20 and the internal circulation air inlet 21, so that the internal circulation mode and the external circulation mode can be switched. With such a configuration, the structure of the air-conditioning air inlet structure 1 is simple, the space occupied by the air-conditioning air inlet structure 1 can be reduced, and more layout space can be reserved for the cabin and the passenger compartment.

[0046] In the embodiment shown in FIG7 , the outer circulation air inlet 20 is provided on a side of the sidewall of the air inlet duct 2 close to the drive mechanism 4, and the inner circulation air inlet 21 is provided on a side of the sidewall of the air inlet duct 2 close to the air outlet 33. In the embodiment of the present application, the two outer circulation air inlets 20 can be provided on opposite sides of the sidewall of the air inlet duct 2 along the first direction X1, and the two outer circulation air inlets 20 are provided on the side of the air inlet duct 2 close to the drive mechanism 4. The two inner circulation air inlets 21 can be provided on opposite sides of the sidewall of the air inlet duct 2 along the second direction X2, and the two inner circulation air inlets 21 are provided on the side of the air inlet duct 2 away from the drive mechanism 4. The two outer circulation air inlets 20 and the two inner circulation air inlets 21 are spaced apart and staggered in the circumferential direction of the air inlet duct 2. In other embodiments, the two external circulation air inlets 20 can be relatively arranged on both sides of the side wall of the air inlet duct 2 along the second direction X2, and the two external circulation air inlets 20 are arranged on the side of the air inlet duct 2 close to the drive mechanism 4, and the two internal circulation air inlets 21 can be relatively arranged on both sides of the side wall of the air inlet duct 2 along the first direction X1, and the two internal circulation air inlets 21 are arranged on the side of the air inlet duct 2 away from the drive mechanism 4. The two external circulation air inlets 20 and the two internal circulation air inlets 21 are spaced apart in the circumferential direction of the air inlet duct 2 and staggered with each other in the axial direction of the air inlet duct 2. The present application does not impose any restrictions on the positions of the external circulation air inlets 20 and the internal circulation air inlets 21. With such an arrangement, the structures of the internal circulation air inlets 21 and the external circulation air inlets 20 are simple, which can reduce the space occupied by the air conditioning air inlet structure 1 and reserve more layout space for the cabin and the passenger compartment.

[0047] In the embodiment shown in Figures 8 and 9 , the damper 3 includes a first surface 34 and a second surface 35 arranged along the axial direction of the damper 3. The first surface 34 is provided with an air outlet 33, and the external circulation channel 23 encloses the second surface 35. The first surface 34 is recessed toward the second surface 35 along the axial direction of the damper 3 to form a plurality of first lightening holes 36. The second surface 35 is recessed toward the first surface 34 along the axial direction of the damper 3 to form a plurality of second lightening holes 37. The first and second lightening holes 36, 37, overlap in their axial cross-sections along the damper 3. That is, their radial projections coincide. However, the first and second lightening holes 36, 37 do not intersect, thereby forming a framework within the damper 3. Specifically, as shown in Figures 8 and 9 , two first lightening holes 36 and two air outlets 33 are provided on the first surface 34. This arrangement reduces the weight of the damper 3 while ensuring the stability of the air conditioner inlet structure 1.

[0048] In the embodiments shown in Figures 1 to 5 or 6 to 9 of this 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. 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 the embodiments of this 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 can strengthen the vertical rigidity of the dash panel. This arrangement can improve 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, which is conducive to the architecture accommodating multiple platforms and multiple vehicle models.

[0049] 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 routing of air-conditioning pipes, the passenger compartment and the engine compartment.

[0050] 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.

[0051] 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.

[0052] 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, comprising at least one outer circulation air inlet and at least one inner circulation air inlet arranged along the circumference of the air inlet duct, wherein the inner circulation air inlet and the outer circulation air inlet are staggered in their radial direction projections; A damper is arranged in the air inlet duct and rotates around the axial direction of the air inlet duct, the side wall of the damper includes at least one opening surface and at least one closed surface, and the projection surface of the opening surface and the closed surface in the radial direction of the damper is staggered; the damper is used to switch the opening and closing of the external circulation air inlet and the internal circulation air inlet; The driving mechanism is assembled on the damper and used for driving the damper to rotate around the axial direction of the damper so as to switch the damper between different 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 to switch between a first position and a second position; When the damper is in the first position, the outer circulation air inlet coincides with the open surface, and the inner circulation air inlet coincides with the closed surface; When the damper is in the second position, the inner circulation air inlet coincides with the open surface, and the outer circulation air inlet coincides with the closed surface.

3. The air inlet structure of the air conditioner according to claim 1, characterized in that: The air inlet duct includes a cylindrical duct body and an external circulation channel connected to the duct body. The external circulation air inlet is located on the side wall of the duct body, and the external circulation air inlet is communicated with the external circulation channel.

4. The air inlet structure of the air conditioner according to claim 1, characterized in that: The outer circulation air inlet and the inner circulation air inlet are both provided as one, the opening surface and the closed surface are both provided as one, and the central angles corresponding to the opening surface and the closed surface are 180° respectively.

5. The air inlet structure of the air conditioner according to claim 1, characterized in that: The number of the outer circulation air inlet and the number of the inner circulation air inlet are both two, the number of the opening surface and the number of the closing surface are both two, and the central angles corresponding to the opening surface and the closing surface are 90° respectively.

6. The air inlet structure of the air conditioner according to claim 1, characterized in that: One end of the damper is a closed structure, the driving mechanism is arranged outside the closed structure, and the other end of the damper is provided with an air outlet.

7. The air inlet structure of the air conditioner according to claim 6, characterized in that: The outer circulation air inlet is arranged on the side wall of the air inlet duct and close to the side of the driving mechanism, and the inner circulation air inlet is arranged on the side wall of the air inlet duct and close to the side of the air outlet.

8. The air inlet structure of the air conditioner according to claim 1, characterized in that: The external circulation air inlet includes a plurality of air inlet holes arranged in a grid shape, and the internal circulation air inlet includes a plurality of the air inlet holes arranged in a grid shape, and the plurality of the air inlet holes are arranged at intervals along the axial direction and the circumferential direction of the air inlet duct.

9. The air inlet structure of the air conditioner according to claim 1, characterized in that: The damper includes a rotating shaft, which is arranged along the center line of the damper. A first fixing part and a second fixing part are respectively arranged at both ends of the air inlet duct. The middle part of the first fixing part includes a first hole, and the middle part of the second fixing part includes a second hole. The orthographic projections of the first fixing part and the second fixing part on the cross section of the damper intersect, and the rotating shaft is fixed to the first hole and the second 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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