Rear-row foot blowing air duct structure, vehicle air conditioning system and vehicle

Abstract

The invention relates to a rear-row foot blowing air duct structure, a vehicle air conditioning system and a vehicle. A rear-row foot blowing air duct comprises an air duct body, an air outlet grille and a support located below the air duct body. One end of the support is fixedly connected with the air duct, and the other end of the support is fixedly connected with the vehicle body bottom plate. The air outlet grille covers an air outlet of the air duct, a first connecting part is arranged on the support, a second connecting part is arranged on the air outlet grille, and the air outlet grille is connected with the support through the first connecting part and the second connecting part; when the carpet is installed in place, the avoiding hole, matched with the air outlet, of the carpet extends into the containing groove, so that the air outlet grille shields the boundary of the air outlet and the avoiding hole, the air outlet and the avoiding hole are not exposed, the integrity and the attractiveness are good, and the delicate sense and the luxury sense of the appearance are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a rear-seat foot-blowing air duct structure, a vehicle air-conditioning system, and a vehicle. Background Art

[0002] The rear foot duct is an important part of the vehicle's air-conditioning system. Its main function is to deliver hot and cold air from the air conditioner to the foot space of the rear seats in the cabin, so as to cool or warm the legs and feet of the rear passengers.

[0003] The rear foot duct is usually arranged between the vehicle body floor and the carpet. Along the airflow direction, the rear foot duct includes a front duct section and a rear duct section that are connected in sequence. The front duct section is connected to the vehicle body floor and connected to the air outlet of the air conditioner. The air outlet side of the rear duct section passes through the avoidance hole on the carpet and extends to the foot space of the rear seat in the cabin.

[0004] However, in the prior art, the air outlet of the rear air duct section and the outer edges of the avoidance hole matching the carpet and the rear air duct section are exposed, so that the rear passengers can see them by just lowering their heads slightly, which has poor aesthetics and affects the customer experience. Summary of the invention

[0005] In order to solve the above technical problems, the present disclosure provides a rear-seat foot-blowing air duct structure, a vehicle air-conditioning system and a vehicle.

[0006] In a first aspect, the present disclosure provides a rear-row foot-blowing air duct structure, comprising an air duct, a bracket, and an air outlet grille;

[0007] The bracket is located below the air duct, and one end of the bracket is fixedly connected to the air duct, and the other end of the bracket is fixedly connected to the bottom plate of the vehicle body;

[0008] The air outlet grille cover is arranged at the air outlet of the air duct, and the bracket is provided with a first connecting portion, and the air outlet grille is provided with a second connecting portion matching the first connecting portion, and the air outlet grille is connected to the bracket through the first connecting portion and the second connecting portion;

[0009] A receiving groove is provided on one side of the air outlet grille facing the air duct, so that when the carpet is fitted into the vehicle body bottom plate, the outer edge of the avoidance hole of the carpet matching the air outlet extends into the receiving groove.

[0010] Optionally, a stop convex portion is provided on a side of the air outlet grille facing the air duct, the stop convex portion is provided along the length direction of the air outlet grille and extends toward the bracket, and the stop convex portion, the air outlet grille and the top wall of the air duct together enclose the accommodating groove;

[0011] When the air outlet grille is connected to the bracket in place, the outer edge of the avoidance hole extends into the accommodating groove and abuts against the stop convex portion.

[0012] Optionally, the stop protrusion is a stop plate arranged along the length direction of the air outlet grille.

[0013] Optionally, a first clamping portion is provided at the top of the bracket, a second clamping portion matching the first clamping portion is provided at the air outlet side of the air duct, and the air outlet side and the bracket are connected together through the first clamping portion and the second clamping portion.

[0014] Optionally, the first clamping portion includes a first clamping hole, and the second clamping portion includes a second clamping hole matching the first clamping hole and a clamping piece penetrating and clamped in the first clamping hole and the second clamping hole.

[0015] Optionally, the clamping member includes a clamping rod and a clamping cap arranged on the top of the clamping rod;

[0016] The clamping rod is inserted into and clamped in the first clamping hole and the second clamping hole, and the clamping cap is stopped on a surface of the air outlet side that is away from the bracket.

[0017] Optionally, the air outlet includes a first outlet and a second outlet that are adjacent and spaced apart;

[0018] The second clamping portion is disposed between the first outlet and the second outlet.

[0019] Optionally, at least two first mounting holes are provided at the bottom end of the bracket, and at least two first mounting holes are arranged at intervals along the circumference of the bracket. At least two second mounting holes are arranged at intervals on the vehicle body floor, and one first mounting hole corresponds to one second mounting hole. The bottom end of the bracket is connected to the vehicle body floor by fasteners passing through the first mounting holes and the second mounting holes.

[0020] Optionally, there are at least two first connection parts, at least two of which are spaced apart along the length direction of the bracket and disposed on both sides of the air outlet, and there are at least two second connection parts, one second connection part corresponds to one first connection part.

[0021] Optionally, the first connecting portion is a slot, and the second connecting portion is a protrusion that can be inserted into the slot.

[0022] Optionally, a connecting ear is provided on the top of the bracket, and the card slot is opened on the connecting ear.

[0023] Optionally, a reinforcing rib is provided on the side wall of the bracket, the reinforcing rib extends in a direction from the air duct to the vehicle body floor, and the reinforcing rib is located directly below the connecting ear.

[0024] In a second aspect, the present disclosure provides a vehicle air-conditioning system, comprising an air-conditioning box and a rear-seat foot-blowing air duct structure as described above, wherein an air inlet of the rear-seat foot-blowing air duct structure is connected to an air-conditioning outlet of the air-conditioning box.

[0025] In a third aspect, the present disclosure provides a vehicle, comprising the vehicle air-conditioning system as described above or the rear-seat foot-blowing air duct structure as described above.

[0026] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0027] The rear-seat foot-blowing air duct structure, vehicle air-conditioning system and vehicle provided by the present invention are provided with an air duct, a bracket and an air outlet grille, wherein the bracket is located below the air duct, and the top end of the bracket is fixedly connected to the air outlet side of the air duct, and the bottom end of the bracket is fixedly connected to the vehicle body floor, that is, the air outlet side of the air duct is fixed to the vehicle body floor through the bracket. The air outlet grille cover is arranged at the air outlet of the air duct, and the air outlet grille is also fixed to the bracket by matching the second connecting part thereon with the first connecting part on the bracket, and a receiving groove is arranged on the side of the air outlet grille facing the air duct, so that when the carpet is fitted into place with the bottom plate of the vehicle body, the edge of the avoidance hole of the carpet matching the air outlet extends into the receiving groove, so that the air outlet grille arranged at the air outlet of the air duct can not only hide the air outlet cover arrangement of the air duct, but also hide the edge of the avoidance hole on the carpet, that is, the air outlet grille blocks the air outlet of the air duct and the boundary of the avoidance hole of the carpet, so that both are not exposed, so that the rear passengers will not see the air outlet of the air duct and the boundary of the avoidance hole of the carpet, thereby improving the integrity and aesthetics of the cabin, enhancing the refinement and luxury of the appearance, and thus improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 This is an axonometric diagram of the rear-row foot-blowing air duct structure according to an embodiment of the present disclosure;

[0031] Figure 2 This is a schematic diagram of the partial assembly structure of the rear-row foot-blowing air duct structure according to an embodiment of the present disclosure;

[0032] Figure 3 This is a schematic diagram of the assembly structure of the rear-row foot-blowing air duct structure according to an embodiment of the present disclosure;

[0033] Figure 4 It is an axonometric diagram of another perspective of the rear-row foot-blowing air duct structure according to the embodiment of the present disclosure;

[0034] Figure 5 This is a partial structural schematic diagram of the rear-row foot-blowing air duct structure according to an embodiment of the present disclosure;

[0035] Figure 6 It is another partial structural schematic diagram of the rear-row foot-blowing air duct structure according to the embodiment of the present disclosure;

[0036] Figure 7 An axonometric view of a bracket of the rear-row foot-blowing air duct structure according to an embodiment of the present disclosure from a first perspective;

[0037] Figure 8 This is an axonometric diagram from a second perspective of the bracket of the rear-row foot-blowing air duct structure described in an embodiment of the present disclosure.

[0038] Among them, 1. air duct; 11. air outlet side; 12. air outlet; 121. first outlet; 122. second outlet; 2. bracket; 21. support column; 22. bearing surface; 23. first mounting hole; 3. air outlet grille; 31. stop convex portion; 32. grille body; 33. air supply port; 41. first connecting portion; 42. second connecting portion; 5. accommodating groove; 6. connecting ear; 7. reinforcing rib; 81. first clamping portion; 82. second clamping portion; 821. second clamping hole; 822. clamping piece; 8221. clamping rod; 8222. clamping cap; 91. vehicle body bottom plate; 92. carpet. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0041] Embodiment 1

[0042] refer to Figures 1 to 8As shown, this embodiment provides a rear-row foot-blowing air duct structure, which is arranged between the vehicle body bottom plate 91 and the carpet 92, and the rear-row foot-blowing air duct structure includes an air duct 1, a bracket 2, and an air outlet grille 3. Among them, the carpet 92 is provided with a avoidance hole matching the air outlet 12 of the air duct 1. When the carpet 92 is fitted and installed in place with the vehicle body bottom plate 91, the air outlet 12 of the air duct 1 is inserted into the avoidance hole of the carpet 92.

[0043] Specifically, refer to Figures 1 to 3 , Figure 5 and Figure 6 As shown, the bracket 2 is located below the air duct 1, and one end of the bracket 2 is fixedly connected to the air duct 1, and the other end of the bracket 2 is fixedly connected to the vehicle body bottom plate 91, that is, the air outlet side 11 of the air duct 1 is fixedly connected to the vehicle body bottom plate 91 through the bracket 2, so that the position of the air outlet side 11 of the air duct 1 is fixed, and the structural stability and position accuracy are high. Furthermore, when installing the carpet 92, the position of the air outlet side 11 of the air duct 1 will not shift, so that the coordination and consistency between the air outlet 12 of the air duct 1 and the avoidance of the carpet 92 are better, thereby avoiding the inconvenience of installing the carpet 92 due to the position shift of the air outlet side 11 of the air duct 1 when installing the carpet 92, and the occurrence of partial non-fitting and non-conformity of the carpet 92, thereby improving the convenience and assembly effect of the installation of the carpet 92, and the assembly efficiency is high.

[0044] Exemplarily, one end of the bracket 2 may be connected to the air outlet side 11 of the air duct 1 .

[0045] For specific implementation, refer to Figures 5 to 8 As shown, the bracket 2 includes a support column 21 and a bearing surface 22 arranged at the top of the support column 21, and the bottom end of the support column 21, that is, the end away from the bearing surface 22, is fixedly connected to the vehicle body bottom plate 91. The bearing surface 22 is used to bear the air outlet side 11 of the air duct 1, and the air outlet side 11 of the air duct 1 is placed on the bearing surface 22 and fixedly connected to the bearing surface 22.

[0046] For example, a plurality of support columns 21 may be provided, and the plurality of support columns 21 are arranged at intervals along the circumferential direction of the bearing surface 22 between the vehicle body bottom plate 91 and the bearing surface 22. Of course, only one support column 21 may also be provided.

[0047] In addition, the bearing surface 22 and the support column 21 can be integrally formed, for example, with good integrity, high structural strength, and excellent bearing performance.

[0048] In some implementations, the shape of the side of the bearing surface 22 facing the air duct 1 matches the shape of the outer wall of the air duct 1, so that the contact area between the air outlet side 11 of the air duct 1 and the bearing surface 22 is larger, thereby improving the bearing performance of the bearing surface 22 on the air duct 1.

[0049] Specifically, refer to Figures 1 to 4 As shown, the air outlet grille 3 is covered at the air outlet 12 of the air duct 1, so that the air outlet grille 3 can cover the air outlet 12 of the air duct 1 so that the air outlet 12 is not exposed. In other words, the air outlet grille 3 covers and hides the air outlet 12 of the air duct 1, so the rear passengers cannot see the air outlet 12 of the air duct 1, which has good aesthetics and enhances the user experience.

[0050] In some implementations, reference Figure 1 , Figure 7 and Figure 8 As shown, a first connecting portion 41 is provided on the bracket 2, and a second connecting portion 42 matching the first connecting portion 41 is provided on the air outlet grille 3. The air outlet grille 3 is connected to the bracket 2 via the first connecting portion 41 and the second connecting portion 42. The structure is simple and easy to manufacture. The air outlet grille 3 can be connected to the bracket 2 relatively conveniently, and the connection is stable and reliable.

[0051] refer to Figure 2 and Figure 3 As shown, a receiving groove 5 is provided on the side of the air outlet grille 3 facing the air duct 1 , and when the carpet 92 is in place with the vehicle body bottom plate 91 , the outer edge of the avoidance hole of the carpet 92 matching the air outlet 12 extends into the receiving groove 5 .

[0052] That is to say, while the air outlet grille 3 covers and hides the air outlet 12, it also covers and hides the boundaries of the avoidance holes on the carpet 92, so that the air outlet 12 of the air duct 1 and the boundaries of the avoidance holes of the carpet 92 are not exposed. In other words, the rear passengers will not see the air outlet 12 of the air duct 1 and the boundaries of the avoidance holes of the carpet 92, and the overall consistency is good, which further improves the aesthetics of the vehicle cabin, enhances the refinement and luxury of the appearance, and further enhances the user experience.

[0053] Among them, in the direction from the air outlet grille 3 to the carpet 92, the dimension of the edge of the avoidance hole extending into the accommodating groove 5 is not less than 8 mm, the fit is better, the shielding effect is better, and the aesthetics is higher.

[0054] In specific implementation, the air outlet grille 3 may include a grille body 32 and an air outlet 33 provided on the grille body 32, wherein the air outlet 33 may be a larger air outlet or may include a plurality of small air outlets arranged at intervals. In addition, a grille is rotatably connected to the air outlet 33.

[0055] The rear-seat foot-blowing air duct structure, vehicle air-conditioning system and vehicle provided in this embodiment are provided with an air duct 1, a bracket 2 and an air outlet grille 3, wherein the bracket 2 is located below the air duct 1, and the top end of the bracket 2 is fixedly connected to the air outlet side 11 of the air duct 1, and the bottom end of the bracket 2 is fixedly connected to the vehicle body bottom plate 91, that is, the air outlet side 11 of the air duct 1 is fixed to the vehicle body bottom plate 91 through the bracket 2. The air outlet grille 3 is covered at the air outlet 12 of the air duct 1, and the air outlet grille 3 is also fixed to the bracket 2 by matching the second connecting portion 42 thereon with the first connecting portion 41 on the bracket 2, and a receiving groove 5 is provided on the side of the air outlet grille 3 facing the air duct 1, so that when the carpet 92 and the vehicle body bottom plate 91 are in place, the edge of the avoidance hole of the carpet 92 matching the air outlet 12 extends into the receiving groove 5, so that the air outlet grille 3 arranged at the air outlet 12 of the air duct 1 can not only cover and hide the air outlet 12 of the air duct 1, but also cover and hide the edge of the avoidance hole on the carpet 92, that is, the air outlet grille 3 blocks the air outlet 12 of the air duct 1 and the boundary of the avoidance hole of the carpet 92, so that neither of them is exposed, so that the rear passengers will not see the air outlet 12 of the air duct 1 and the boundary of the avoidance hole of the carpet 92, thereby improving the integrity and aesthetics of the cabin, enhancing the refinement and luxury of the appearance, and thus improving the user experience. At the same time, since the air outlet side 11 of the air duct 1 is fixed to the vehicle body bottom plate 91 by the bracket 2, the position of the air outlet side 11 of the air duct 1 relative to the vehicle body bottom plate 91 is fixed. Compared with the solution in the prior art in which there is no connection between the air outlet side 11 of the air duct 1 and the vehicle body bottom plate 91, the structural stability and position accuracy of the air outlet side 11 of the air duct 1 are improved, so that the air outlet 12 of the air duct 1 and the avoidance hole of the carpet 92 have better coordination and consistency, thereby avoiding the inconvenience in the installation of the carpet 92 due to the offset of the position of the air outlet 12 of the air duct 1 or the occurrence of partial non-fit and shape mismatch between the carpet 92 and the vehicle body bottom plate 91, thereby improving the installation convenience and assembly effect of the carpet 92.

[0056] In some embodiments, reference Figure 2 and Figure 3 As shown, a stop protrusion 31 is provided on one side of the air outlet grille 3 facing the air duct 1. The stop protrusion 31 is provided along the length direction of the air outlet grille 3 and extends toward the bracket 2. The stop protrusion 31, the air outlet grille 3 and the top wall of the air duct 1 together enclose a receiving groove 5; when the air outlet grille 3 is connected to the bracket 2 in place, the outer edge of the avoidance hole extends into the receiving groove 5 and abuts against the stop protrusion 31.

[0057] That is to say, when the air outlet grille 3 is connected to the bracket 2, the stop protrusion 31, the air outlet grille 3 and the air duct 1 together define the receiving groove 5, and the edge of the avoidance hole is accommodated and hidden in the receiving groove 5, so that the edge of the avoidance hole is not exposed, the aesthetics is better, and the user experience is enhanced.

[0058] In specific implementation, the carpet 92 can be directly placed and laid on the air duct 1 in the direction from the air duct 1 to the vehicle body bottom plate 91, that is, in the Z direction, without the need for other assembly actions, so that the air duct 1 and the carpet 92 do not affect each other. Therefore, during the installation of the carpet 92, the air duct 1 will not interfere with the installation of the carpet 92, and the assembly is convenient. To a certain extent, the phenomenon of local non-fit and non-conformity between the carpet 92 and the vehicle body bottom plate 91 is avoided.

[0059] In some embodiments, the stopping protrusion 31 is a stopping plate provided along the length direction of the air outlet grille 3 , which has a simple structure, is easy to manufacture, and has a good stopping effect on the carpet 92 .

[0060] In some other embodiments, the stopping protrusion 31 includes a plurality of stopping protrusions, and the plurality of stopping protrusions are arranged at intervals along the length direction of the air outlet grille 3 .

[0061] In some embodiments, reference Figure 3 , Figure 7 and Figure 8 As shown, the top of the bracket 2 is provided with a first clamping portion 81, referring to Figure 3 and Figure 5 As shown, the air outlet side 11 of the air duct 1 is provided with a second clamping portion 82 matching the first clamping portion 81 , and the air outlet side 11 and the bracket 2 are connected together through the first clamping portion 81 and the second clamping portion 82 , which is convenient and reliable, and has high structural stability.

[0062] In some implementations, the first clamping portion 81 includes a first clamping hole, and the second clamping portion 82 includes a second clamping hole 821 matching the first clamping hole and a clamping member 822 penetrating and clamped in the first clamping hole and the second clamping hole 821 .

[0063] During specific assembly, the air outlet side 11 of the air duct 1 is placed on the bearing surface 22 of the bracket 2, the first clamping hole and the second clamping hole 821 are aligned, the clamping piece 822 is inserted into the first clamping hole and the second clamping hole 821, and clamped together with the first clamping hole and the second clamping hole 821, so that the air outlet side 11 of the air duct 1 can be connected and fixed to the bracket 2, and the connection is convenient and reliable, so that the position of the air outlet side 11 of the air duct 1 relative to the vehicle body bottom plate 91 remains unchanged, the structural stability and position accuracy of the air outlet side 11 are improved, and the air outlet 12 of the air duct 1 and the avoidance hole of the carpet 92 have better matching and consistency, thereby avoiding the inconvenience of the installation of the carpet 92 due to the offset of the position of the air outlet 12 of the air duct 1 or the occurrence of partial non-fit and shape mismatch between the carpet 92 and the vehicle body bottom plate 91, thereby improving the installation convenience and assembly effect of the carpet 92.

[0064] In some embodiments, reference Figure 2 and Figure 3As shown, the clamping member 822 includes a clamping rod 8221 and a clamping cap 8222 arranged on the top of the clamping rod 8221; the clamping rod 8221 is passed through and clamped in the first clamping hole and the second clamping hole 821, and the clamping cap 8222 is stopped on the side of the air outlet side 11 facing away from the bracket 2, thereby improving the reliability and stability of the connection between the air duct 1 and the bracket 2 in the Z direction, and further improving the structural stability and position accuracy of the air outlet side 11, so that the air outlet 12 of the air duct 1 and the avoidance hole of the carpet 92 have better coordination and consistency, thereby further improving the installation convenience and assembly effect of the carpet 92.

[0065] In some embodiments, reference Figure 1 and Figure 5 As shown, the air outlet 12 includes a first outlet 121 and a second outlet 122 that are adjacent and spaced apart, and the second clamping portion 82 is disposed between the first outlet 121 and the second outlet 122 .

[0066] The second clamping portion 82 is arranged between the first outlet 121 and the second outlet 122, which makes the connection between the air outlet side 11 and the bracket 2 more convenient and the layout more flexible without affecting the air outlet, and does not interfere with the assembly of the air outlet grille 3, thereby improving the space utilization rate.

[0067] In some embodiments, reference Figure 2 , Figures 5 to 8 As shown, at least two first mounting holes 23 are provided at the bottom end of the bracket 2, and the at least two first mounting holes 23 are arranged at intervals along the circumference of the bracket 2. At least two second mounting holes are provided at intervals on the vehicle body bottom plate 91, and one first mounting hole 23 corresponds to one second mounting hole. The bottom end of the bracket 2 is connected to the vehicle body bottom plate 91 by fasteners penetrated through the first mounting hole 23 and the second mounting hole. It is easy to manufacture, and the connection is convenient and reliable, so that the connection strength between the bracket 2 and the vehicle body bottom plate 91 is higher.

[0068] In specific implementation, a plurality of support columns 21 are provided at the bottom of the bracket 2, and the plurality of support columns 21 are arranged at intervals along the circumference of the bracket 2. The bottom of each support column 21 is provided with at least one first mounting hole 23 for connecting to the vehicle body floor 91. The layout is reasonable, and the connection is convenient and reliable.

[0069] In some implementations, the first mounting hole 23 and the second mounting hole may be, for example, threaded holes with internal threads, and the fasteners may be, for example, bolts with external threads.

[0070] In some embodiments, there are at least two first connection parts 41 , at least two first connection parts 41 are spaced apart along the length direction of the bracket 2 and are disposed on both sides of the air outlet 12 , and there are at least two second connection parts 42 , one second connection part 42 corresponds to one first connection part 41 .

[0071] That is to say, the bracket 2 and the air outlet grille 3 are connected together by multiple sets of matching first connecting parts 41 and second connecting parts 42, that is, multiple sets of connecting structures are arranged between the bracket 2 and the air outlet grille 3, so that the connection strength between the bracket 2 and the air outlet grille 3 is higher and the connection stability is better, thereby making the structural stability of the rear foot blowing air duct structure of this embodiment higher.

[0072] In some embodiments, reference Figure 1 , Figures 5 to 8 As shown, the first connecting part 41 is a card slot, and the second connecting part 42 is a card protrusion that can be inserted into the card slot. The air outlet grille 3 can be connected to the bracket 2 through the card slot and the card protrusion. The structure is simple, easy to manufacture, and the connection is convenient and reliable.

[0073] In other embodiments, the first connection portion 41 may be, for example, a latching protrusion disposed on the bracket 2 , and the second connection portion 42 may be a latching groove disposed on the air outlet grille 3 .

[0074] In some embodiments, reference Figure 1 , Figures 5 to 8 As shown, a connecting ear 6 is provided on the top of the bracket 2 , and a slot is opened on the connecting ear 6 .

[0075] A connecting ear 6 is provided on the top of the bracket 2, and a card slot is provided on the connecting ear 6. On the one hand, a larger assembly space is provided for the assembly of the air outlet grille 3, which is convenient for installation and disassembly. On the other hand, the card slot does not need to be directly provided on the bearing surface 22 of the bracket 2, so that the structural strength of the bracket 2 is higher and the bearing performance is better. At the same time, the card slot does not occupy the space of the bearing surface 22, which provides a larger layout space for the air duct 1.

[0076] Continue to refer Figure 1 , Figures 5 to 8 As shown, in some embodiments, a reinforcing rib 7 is provided on the side wall of the bracket 2 , the reinforcing rib 7 extends in a direction from the air duct 1 to the vehicle body bottom plate 91 , and the reinforcing rib 7 is located directly below the connecting ear 6 .

[0077] It should be noted that the air duct 1 is usually arranged above the vehicle body bottom plate 91 , and the bracket 2 is located between the air duct 1 and the vehicle body bottom plate 91 , so the height direction of the bracket 2 is consistent with the direction from the air duct 1 to the vehicle body bottom plate 91 .

[0078] That is to say, along the height direction of the bracket 2, the side wall of the bracket 2 is provided with a reinforcing rib 7, which is specifically provided on the side wall of the support column 21 and connected to the bottom surface of the bearing surface 22, and the reinforcing rib 7 is located below the connecting ear 6. The reinforcing rib 7 is provided below the connecting ear 6. On the one hand, the structural strength between the support column 21 and the bearing surface 22 can be enhanced by providing the reinforcing rib 7 below the connecting ear 6, so that the structural strength of the bracket 2 is higher, and the bearing performance of the air duct 1 and the air outlet grille 3 is better. On the other hand, the structural strength of the bracket 2 at the connecting ear 6 can be improved, thereby avoiding the occurrence of stress concentration or fracture of the bracket 2 at the connecting ear 6 to a certain extent, thereby improving the connection strength and structural stability between the air outlet grille 3 and the bracket 2, so that the structural stability of the rear-row foot-blowing air duct structure of this embodiment is better.

[0079] In a specific implementation, a plurality of connecting ears 6 are disposed on the top of the bearing surface 22 , and the plurality of connecting ears 6 are disposed on both sides of the air outlet 12 . At least one first connecting portion 41 is disposed on each connecting ear 6 .

[0080] For example, reference Figure 7 and Figure 8 As shown, two connecting ears 6 are provided on the bracket 2, and the two connecting ears 6 are arranged on the bearing surface 22 at intervals along the length direction of the air outlet grille 3, and the two connecting ears 6 are arranged on both sides of the air duct 1, and the two connecting ears 6 are respectively provided with a slot for connecting with the air outlet grille 3.

[0081] Embodiment 2

[0082] The present embodiment also provides a vehicle air-conditioning system, which includes an air-conditioning box and a rear-row foot-blowing air duct structure, wherein an air inlet of the rear-row foot-blowing air duct structure is connected to an air-conditioning outlet of the air-conditioning box.

[0083] The rear-row foot-blowing air duct structure in this embodiment is the same as the specific structure and implementation principle of the rear-row foot-blowing air duct structure provided in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiment.

[0084] Embodiment 3

[0085] This embodiment also provides a vehicle, which includes a vehicle air-conditioning system or a rear-seat foot-blowing air duct structure.

[0086] The vehicle air-conditioning system in this embodiment has the same specific structure and implementation principle as the vehicle air-conditioning system provided in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiment.

[0087] The rear-row foot-blowing air duct structure in this embodiment is the same as the specific structure and implementation principle of the rear-row foot-blowing air duct structure provided in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiment.

[0088] It should be noted that, in this article, relational terms such as "first" and "second" 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0089] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rear foot-blowing air duct structure, characterized in that: Including air duct, bracket and air outlet grille; The bracket is located below the air duct, and one end of the bracket is fixedly connected to the air duct, and the other end of the bracket is fixedly connected to the bottom plate of the vehicle body; The air outlet grille cover is arranged at the air outlet of the air duct, and the bracket is provided with a first connecting portion, and the air outlet grille is provided with a second connecting portion matching the first connecting portion, and the air outlet grille is connected to the bracket through the first connecting portion and the second connecting portion; A receiving groove is provided on one side of the air outlet grille facing the air duct, so that when the carpet is fitted into the vehicle body bottom plate, the outer edge of the avoidance hole of the carpet matching the air outlet extends into the receiving groove.

2. The rear foot blowing air duct structure according to claim 1 is characterized in that: A stopper protrusion is provided on one side of the air outlet grille facing the air duct, the stopper protrusion is provided along the length direction of the air outlet grille and extends toward the bracket, and the stopper protrusion, the air outlet grille and the top wall of the air duct together enclose the accommodating groove; When the air outlet grille is connected to the bracket in place, the outer edge of the avoidance hole extends into the accommodating groove and abuts against the stop convex portion.

3. The rear foot blowing air duct structure according to claim 2 is characterized in that: The stop convex portion is a stop plate arranged along the length direction of the air outlet grille.

4. The rear foot-blowing air duct structure according to claim 1, characterized in that: A first clamping portion is disposed at the top end of the bracket, a second clamping portion matching the first clamping portion is disposed at the air outlet side of the air duct, and the air outlet side and the bracket are connected together through the first clamping portion and the second clamping portion.

5. The rear foot blowing air duct structure according to claim 4 is characterized in that: The first clamping portion includes a first clamping hole, and the second clamping portion includes a second clamping hole matching the first clamping hole and a clamping piece penetrating and clamped in the first clamping hole and the second clamping hole.

6. The rear foot-blowing air duct structure according to claim 5, characterized in that: The clamping member comprises a clamping rod and a clamping cap arranged on the top of the clamping rod; The clamping rod is inserted into and clamped in the first clamping hole and the second clamping hole, and the clamping cap is stopped on a surface of the air outlet side that is away from the bracket.

7. The rear foot-blowing air duct structure according to claim 4 is characterized in that: The air outlet comprises a first outlet and a second outlet which are adjacent and spaced apart; The second clamping portion is disposed between the first outlet and the second outlet.

8. The rear foot blowing air duct structure according to any one of claims 1 to 7, characterized in that: At least two first mounting holes are arranged at intervals along the circumference of the bracket at the bottom end of the bracket, and at least two second mounting holes are arranged at intervals on the vehicle body floor, one first mounting hole corresponds to one second mounting hole, and the bottom end of the bracket is connected to the vehicle body floor by fasteners passing through the first mounting holes and the second mounting holes.

9. The rear foot blowing air duct structure according to any one of claims 1 to 7, characterized in that: There are at least two first connection parts, and at least two first connection parts are arranged at intervals along the length direction of the bracket and on both sides of the air outlet. There are at least two second connection parts, and one second connection part corresponds to one first connection part.

10. The rear foot blowing air duct structure according to any one of claims 1 to 7, characterized in that: The first connecting portion is a card slot, and the second connecting portion is a card protrusion that can be inserted into the card slot.

11. The rear foot-blowing air duct structure according to claim 10, characterized in that: A connecting ear is arranged on the top of the bracket, and the clamping slot is opened on the connecting ear.

12. The rear foot-blowing air duct structure according to claim 11, characterized in that: A reinforcing rib is arranged on the side wall of the bracket, the reinforcing rib extends in a direction from the air duct to the vehicle body bottom plate, and the reinforcing rib is located directly below the connecting ear.

13. A vehicle air conditioning system, characterized in that: It comprises an air-conditioning box and the rear-row foot-blowing air duct structure as described in any one of claims 1 to 12, wherein the air inlet of the rear-row foot-blowing air duct structure is connected to the air-conditioning outlet of the air-conditioning box.

14. A vehicle, characterized in that: It includes the vehicle air conditioning system as described in claim 13 or the rear foot blowing air duct structure as described in any one of claims 1 to 12.

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