Air duct assembly and automobile

The air duct is formed by integrating the plate-shaped structure panel with the roof frame and side eaves frame, which solves the problems of cost and space waste in adjusting the cross-sectional length of the air duct door, and achieves lightweighting and improved sealing of the air duct door.

CN224256402UActive Publication Date: 2026-05-19GUANGZHOU TONGDA AUTO ELECTRIC +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU TONGDA AUTO ELECTRIC
Filing Date
2025-05-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, the cross-sectional length of the air duct door needs to be spliced ​​together using various aluminum profiles, resulting in high mold opening costs and wasted storage space, and it is difficult to achieve lightweight and airtight air duct doors.

Method used

The air duct panel adopts a one-piece bending and forming plate structure. The top and bottom profiles are bonded to the air duct door panel to form an inner cavity air duct. Combined with the design of locks and clamps, the cross-sectional length and shape of the air duct door can be flexibly adjusted, reducing the splicing of profiles.

Benefits of technology

This reduced the amount of profile molding and inventory backlog, achieving lightweight design and improved sealing of the duct door, while also enhancing the standardization and safety of the duct.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224256402U_ABST
    Figure CN224256402U_ABST
Patent Text Reader

Abstract

The utility model discloses an air duct assembly and an automobile, the air duct assembly, an automobile roof framework and a side eave frame are enclosed to form an air duct, and the air duct assembly comprises a top section bar, a bottom section bar, a top edge section bar, a bottom edge section bar, an air duct door plate and an air duct back plate; the upper end of the top profile is connected with the roof framework; the lower end of the bottom profile is connected with the side eave frame; the top edge section bar is hinged with the top section bar; a lockset is mounted on the bottom edge profile, and the lockset is selectively connected with the bottom edge profile and the bottom profile in a locking manner; the air duct door plate is bonded with the top edge profile and the bottom edge profile; the air duct door plate is of a plate-shaped structure which is integrally bent and formed; the air duct back plate is located in the air duct and connected with the top edge sectional material and the bottom edge sectional material. An inner cavity air channel is defined by the top edge profile, the air channel back plate, the bottom edge profile and the air channel door plate. An air inlet is formed in the air duct back plate; an air outlet is formed in the air duct door plate and communicates with the inner cavity air duct.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a duct assembly and an automobile. Background Technology

[0002] Currently, conventional air ducts are mainly used for the delivery and regulation of air conditioning air in buses. However, considering that different models of air duct doors will have different cross-sectional lengths, air duct doors are often spliced ​​with various aluminum profiles to adjust the cross-sectional length of the air duct door in order to meet the installation needs of different models. Consequently, a large number of profile molds need to be manufactured, which not only wastes mold opening costs but also increases the burden of storage space. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a duct assembly and an automobile that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] On the one hand, this utility model provides a duct assembly, which, together with the roof frame and side eaves frame, forms a duct, including:

[0006] Top profile, the upper end of which is connected to the roof frame;

[0007] Bottom profile, the lower end of which is connected to the side eaves frame;

[0008] A top edge profile, which is hingedly connected to the top profile;

[0009] A bottom edge profile, on which a lock is mounted, the lock selectively engaging and connecting the bottom edge profile and the bottom profile;

[0010] The duct door panel has its upper end bonded to the top edge profile and its lower end bonded to the bottom edge profile; the duct door panel is a plate-shaped structure formed by integral bending.

[0011] A duct back panel is located inside the duct and is connected to the top edge profile and the bottom edge profile respectively; the top edge profile, the duct back panel, the bottom edge profile and the duct door panel enclose an inner cavity duct; an air inlet is provided on the duct back panel; an air outlet is provided on the duct door panel and the air outlet is connected to the inner cavity duct.

[0012] Preferably, the top edge profile is bonded to the side of the air duct opposite to the air duct and to the side of the air duct door panel opposite to the air duct; the bottom edge profile is bonded to the side of the air duct door panel opposite to the air duct.

[0013] Preferably, the top edge profile is provided with a first clamp, which is snapped into the upper end of the air duct door panel; the bottom edge profile is provided with a second clamp, which is snapped into the lower end of the air duct door panel.

[0014] Preferably, the air duct door panel includes at least one layer of plastic sheet.

[0015] Preferably, the duct door panel further includes at least one metal plate layer, which is stacked with the plastic plate layer.

[0016] Preferably, it also includes a lampshade, which is located outside the air duct and mounted on the top profile.

[0017] Preferably, the lock is installed on one side of the bottom profile relative to the air duct and is located inside the air duct.

[0018] Preferably, the top edge profile and the top profile are hinged together by a plurality of hinges.

[0019] Preferably, the air duct door panel includes at least one air outlet area, and the air outlet area includes a plurality of air outlets.

[0020] On the other hand, this utility model provides an automobile, including the air duct assembly as described above, wherein the air outlet of the vehicle air conditioner is connected to the air inlet on the back panel of the air duct, and the air outlet is connected to the passenger compartment.

[0021] The beneficial effects of this utility model are as follows:

[0022] The air duct panel of this utility model adopts an integrally bent sheet material structure, which eliminates the need to adjust the cross-sectional length of the air duct door by splicing profiles. This not only reduces the amount of profile molding and inventory backlog, but also achieves the effect of lightweight air duct door.

[0023] In this utility model, the air duct panel is bonded and fixed to the edge profile. The air duct panel adopts an integrally bent plate structure, which can completely cover the top and bottom edge profiles inside the air duct panel, thus improving the air duct's sealing performance. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the air duct component structure of this utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the air duct component structure of this utility model. Figure 2 ;

[0027] Figure 3 for Figure 1 A schematic diagram of the AA-plane cross-sectional structure in the middle;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the local structure of region M in the middle;

[0029] Figure 5 for Figure 3 A magnified schematic diagram of the local structure of region N in the middle;

[0030] Figure 6 for Figure 1 A schematic diagram of the BB section structure.

[0031] In the picture:

[0032] 10. Top profile; 20. Roof frame; 30. Bottom profile; 40. Side eaves frame; 50. Top edge profile; 51. First clamp; 60. Bottom edge profile; 61. Second clamp; 70. Lock; 80. Air duct door panel; 81. Air outlet; 90. Air duct; 100. Air duct back panel; 101. Air inlet; 110. Inner cavity air duct; 120. Lamp cover; 130. Hinge; 140. Buffer plug. Detailed Implementation

[0033] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by this application clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] This utility model provides a duct assembly that, together with a roof frame and side eaves rack, forms a duct. The duct assembly includes: a top profile, a bottom profile, a top edge profile, a bottom edge profile, a duct door panel, and a duct back panel. The upper end of the top profile is connected to the roof frame; the lower end of the bottom profile is connected to the side eaves rack; the top edge profile is hinged to the top profile; a lock is installed on the bottom edge profile, selectively locking the bottom edge profile and the bottom profile; the duct door panel is bonded to the top edge profile and the bottom edge profile; the duct door panel is an integrally bent plate structure; the duct back panel is located inside the duct and is connected to both the top edge profile and the bottom edge profile; the top edge profile, duct back panel, bottom edge profile, and duct door panel together form an inner cavity duct; an air inlet is provided on the duct back panel; an air outlet is provided on the duct door panel and is connected to the inner cavity duct.

[0037] In this utility model, the air duct panel is bonded and fixed to the edge profile. The air duct panel adopts an integrally bent plate structure, which can completely cover the top and bottom edge profiles inside the air duct panel, thus improving the air duct's sealing performance.

[0038] Figure 1 This is a schematic diagram of the air duct component structure of this utility model. Figure 1 , Figure 1 This is a schematic diagram of the air duct component structure from an external perspective. Figure 2 This is a schematic diagram of the air duct component structure of this utility model. Figure 2 , Figure 2 This is a schematic diagram of the air duct component structure from the internal view of the air duct. Figure 3 for Figure 1 A schematic diagram of the AA-plane cross-sectional structure. Figure 4 for Figure 3 A magnified schematic diagram of the local structure of region M in the middle. Figure 5 for Figure 3 A magnified schematic diagram of the N region. Figure 6 for Figure 1 A schematic diagram of the BB section structure.

[0039] refer to Figures 1 to 6As shown, an air duct assembly provided as an embodiment of this utility model, which, together with the roof frame 20 and the side eaves frame 40, forms an air duct 90. The air duct assembly includes: a top profile 10, a bottom profile 30, a top edge profile 50, a bottom edge profile 60, an air duct door panel 80, and an air duct back panel 100. The upper end of the top profile 10 is connected to the roof frame 20; the lower end of the bottom profile 30 is connected to the side eaves frame 40; the top edge profile 50 is hinged to the top profile 10; a lock 70 is installed on the bottom edge profile 60, which selectively locks the bottom edge profile 60 and the bottom profile 30; the upper end of the air duct door panel 80 is bonded to the top edge profile 50, and the lower end of the air duct door panel 80 is bonded to the bottom edge profile 60; the air duct... The door panel 80 is a plate-shaped structure formed by bending in one piece; the air duct back panel 100 is located inside the air duct 90 and is connected to the top edge profile 50 and the bottom edge profile 60 respectively; the top edge profile 50, the air duct back panel 100, the bottom edge profile 60 and the air duct door panel 80 enclose to form an inner cavity air duct 110; an air inlet 101 is opened on the air duct back panel 100; an air outlet 81 is opened on the air duct door panel 80 and the air outlet 81 is connected to the inner cavity air duct 110.

[0040] In this embodiment, the air duct is formed by the roof frame 20, the top profile 10, the top edge profile 50, the air duct door panel 80, the bottom edge profile 60, the bottom profile 30, and the side eaves frame 40.

[0041] In this embodiment, the duct door panel 80 adopts a one-piece bent plate structure, which can completely cover the top edge profile 50 and the bottom edge profile 60. The top edge profile 50 and the bottom edge profile 60 are completely invisible from the outside of the duct. This design makes the outer surface lines of the duct door panel 80 smoother and more streamlined, eliminating the safety hazards caused by external parts. The cross-section of the duct door panel 80 can directly match the cross-sectional length and shape of the duct door, eliminating the need to adjust the cross-sectional length and shape of the duct door through multi-segment profile splicing. Furthermore, the top edge profile 50 and the bottom edge profile 60 can be designed as standard parts, improving the standardization of the duct assembly.

[0042] In one specific embodiment, the top edge profile 50 is bonded to the side of the air duct 90 opposite to the side of the air duct door panel 80 opposite to the side of the air duct 90; the bottom edge profile 60 is bonded to the side of the air duct door panel 80 opposite to the side of the air duct 90. In this embodiment, the duct door panel 80 is bonded to the top edge profile 50 and the bottom edge profile 60, allowing the top edge profile 50 and the bottom edge profile 60 to be tightly fitted to the inner side of the duct door panel 80 (i.e., the side of the duct door panel 80 opposite to the duct 90). Here, the top edge profile 50 and the bottom edge profile 60 are entirely attached to the inner side of the duct door panel 80, increasing the adhesive contact area between the duct door panel 80 and the top edge profile 50 and the bottom edge profile 60, making the installation of the duct door panel 80 more stable. At the same time, the duct door panel 80 completely covers the top edge profile 50 and the bottom edge profile 60 on the inner side of the duct door panel 80 (i.e., the side of the duct door panel 80 opposite to the duct 90), improving the airtightness of the duct.

[0043] It is important to note that, in order to ensure the bonding effect, the contour shape of the top edge profile 50 on the side opposite to the air duct 90 must be aligned with the contour shape of the air duct door panel 80 on the side opposite to the air duct 90. Similarly, the contour shape of the bottom edge profile 60 on the side opposite to the air duct 90 must also be aligned with the contour shape of the air duct door panel 80 on the side opposite to the air duct 90.

[0044] In one embodiment, the top edge profile 50 is provided with a first clamp 51, which is snapped into the upper end of the air duct door panel 80; the bottom edge profile 60 is provided with a second clamp 61, which is snapped into the lower end of the air duct door panel 80.

[0045] Optionally, the first clamp 51 and the second clamp 61 can be elastic elements, which helps to improve the tightness of the snap-fit.

[0046] Optionally, the first clamp 51 is interference-fitted with the upper end of the air duct door panel 80, and the second clamp 61 is also interference-fitted with the lower end of the air duct door panel 80, which can ensure that the air duct door panel 80 is tightly clamped between the first clamp 51 and the second clamp 61.

[0047] Optionally, the ends of the first clamp 51 and the second clamp 61 are provided with transition joints. The diameter of the transition joints is smaller the closer they are to the ends of the first clamp 51 and the second clamp 61, so that the air duct door panel 80 can be more smoothly inserted into the first clamp 51 and the second clamp 61.

[0048] In one embodiment, the air duct door panel 80 includes at least one layer of plastic sheet. Since plastic has a lower density than metal, a plastic sheet layer of the same specifications is lighter than a metal sheet layer, which is more conducive to achieving a lightweight design for the door panel.

[0049] Optionally, the air duct door panel 80 includes at least one plastic sheet layer and at least one metal sheet layer, with the metal sheet layer stacked on top of the plastic sheet layer. While ensuring a lightweight design, the addition of the metal sheet layer increases the strength of the door panel, making it not only more durable but also safer and more reliable.

[0050] The plastic and metal layers can be arranged in an alternating manner, that is, by repeatedly stacking one layer of plastic and one layer of metal.

[0051] Among them, the plastic board layers and metal board layers can also be arranged in a concentrated stacking manner, that is, multiple layers of plastic board layers are stacked with multiple layers of metal board layers.

[0052] The metal sheet can also be selectively stacked on the plastic sheet in areas where strength needs to be increased, so as to increase the strength of the sheet in a targeted manner and better balance the needs of lightweighting and reliability.

[0053] Regarding the inner cavity air duct formed by the air duct back panel, the gas to be transported is introduced into the vehicle compartment through the inner cavity air duct. The inner cavity air duct then transports and regulates the gas, improving its transport efficiency. Specifically, the gas to be transported can be the air conditioning air supplied by the vehicle's air conditioner, or it can be purified gas, plasma gas, oxygen-enriched gas, etc., generated by different gas generating devices. There are no limitations; adjustments can be made according to the specific application scenario. Simply connect the air outlet of the gas generating device to the air inlet 101 on the air duct back panel 100 to introduce the gas generated by the target gas generating device into the inner cavity air duct. The gas is then transported and regulated through the inner cavity air duct to improve the gas transport efficiency.

[0054] In one optional embodiment, at least one baffle can be provided on the back plate of the air duct. The baffle can divide the inner air duct into at least two sub-cavities. Each sub-cavity is independent and closed, thereby realizing the simultaneous delivery and regulation of multiple gases to be delivered in the inner air duct.

[0055] It should be noted that the duct back panel 100 also adopts an integrally bent plate structure. The duct back panel 100 may also include at least one plastic plate layer and at least one metal plate layer, with the metal plate layer stacked on top of the plastic plate layer. While ensuring a lightweight design, the metal plate layer increases the strength of the plate, making it more durable and reliable. The duct back panel 100 can be similarly configured to the duct door panel 80, and will not be described in detail here.

[0056] Regarding the connection between the bottom profile 30 and the bottom edge profile 60, a buffer plug 140 can be used to connect the bottom profile 30 and the bottom edge profile 60. Here, the bottom profile 30 and the bottom edge profile 60 are connected by a buffer plug 140, which reduces the vibration between the bottom profile 30 and the bottom edge profile 60 and effectively prevents abnormal noise caused by relative movement between the bottom profile 30 and the bottom edge profile 60.

[0057] Regarding the installation between the bottom profile 60 and the lock 70, the lock 70 is installed on the side of the bottom profile 60 opposite to the air duct 90 and is located within the air duct 90.

[0058] Specifically, the bottom profile 60 has a raised cavity on one side relative to the air duct 90, and the lock is installed in the raised cavity. This raised cavity on the bottom profile 60 can provide effective support for the lock 70 and provide suitable installation space for the lock 70 on the bottom profile 60, so that the lock 70 can be embedded in the raised cavity on the bottom profile 60 without the need for additional parts, thus achieving complete concealment of the lock within the air duct.

[0059] In an optional embodiment, the top edge profile 50 and the top profile 10 are hinged together by a plurality of hinges 130, which can ensure that the connection between the top edge profile 50 and the top profile 10 is more stable and the opening and closing action between the top edge profile 50 and the top profile 10 is smoother.

[0060] In an optional embodiment, the duct door panel 80 includes at least one air outlet area, and the air outlet area includes multiple air outlets 81, thereby improving the air outlet efficiency of the gas to be transported. It should be noted that the shape and distribution of the air outlets, as well as the number and distribution of the air outlet areas, can be adaptively adjusted as needed, and no specific limitations are imposed here.

[0061] In one embodiment of the present invention, a lampshade 120 is also included, which is located outside the air duct 90 and is mounted on the top profile 10.

[0062] In one embodiment of this utility model, a car is provided, including the air duct assembly as described above. The air outlet 81 of the vehicle air conditioner is connected to the air inlet 101 on the air duct back panel 100, and the air outlet 81 is connected to the passenger compartment. In this embodiment, the internal air duct 110 is mainly used to transport and regulate the air conditioning air, thereby improving the air conditioning air transport efficiency.

[0063] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0064] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0066] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A duct assembly, which, together with a roof frame (20) and a side eaves frame (40), forms a duct (90), characterized in that, include: Top profile (10), the upper end of which is connected to the roof frame (20); Bottom profile (30), the lower end of which is connected to the side eaves frame (40); Top edge profile (50), which is hinged to the top profile (10); A bottom profile (60) is provided, on which a lock (70) is mounted, the lock (70) selectively engaging the bottom profile (60) and the bottom profile (30); A duct door panel (80), the upper end of which is bonded to the top edge profile (50), and the lower end of which is bonded to the bottom edge profile (60); the duct door panel (80) is an integrally bent plate structure; and A back panel (100) is located inside the air duct (90) and is connected to the top edge profile (50) and the bottom edge profile (60) respectively. The top edge profile (50), the back panel (100), the bottom edge profile (60) and the air duct door panel (80) enclose an inner cavity air duct (110). An air inlet (101) is opened on the back panel (100). An air outlet (81) is opened on the air duct door panel (80) and the air outlet (81) is connected to the inner cavity air duct (110).

2. The air duct assembly according to claim 1, characterized in that, The top edge profile (50) opposite to the air duct (90) is bonded to the side of the air duct door panel (80) opposite to the air duct (90); the bottom edge profile (60) opposite to the air duct (90) is bonded to the side of the air duct door panel (80) opposite to the air duct (90).

3. The air duct assembly according to claim 2, characterized in that, The top edge profile (50) is provided with a first clamp (51), which is snapped to the upper end of the air duct door panel (80); the bottom edge profile (60) is provided with a second clamp (61), which is snapped to the lower end of the air duct door panel (80).

4. The air duct assembly according to claim 1, characterized in that, The air duct door panel (80) includes at least one layer of plastic sheet.

5. The air duct assembly according to claim 4, characterized in that, The air duct door panel (80) also includes at least one metal plate layer, which is stacked with the plastic plate layer.

6. The air duct assembly according to claim 1, characterized in that, It also includes a lampshade (120) located outside the air duct (90) and mounted on the top profile (10).

7. The air duct assembly according to claim 1, characterized in that, The lock (70) is installed on one side of the bottom profile (60) relative to the air duct (90) and is located inside the air duct (90).

8. The air duct assembly according to claim 1, characterized in that, The top edge profile (50) and the top profile (10) are hinged together by a plurality of hinges (130).

9. The air duct assembly according to claim 1, characterized in that, The air duct door panel (80) includes at least one air outlet area, and the air outlet area includes a plurality of air outlets (81).

10. A car, characterized in that, Includes the air duct assembly as described in any one of claims 1 to 9, wherein the air outlet (81) of the vehicle air conditioner is connected to the air inlet (101) on the air duct back panel (100), and the air outlet (81) is connected to the vehicle compartment.