Instrument desk blowpipe assembly, instrument desk assembly and vehicle

Abstract

The invention discloses an instrument desk blowpipe assembly, an instrument desk assembly and a vehicle, and relates to the technical field of automobile parts, and the instrument desk blowpipe assembly comprises a central face blowing air pipe body, a branch face blowing air pipe body and a defrosting air pipe body which are independently arranged; wherein the branch face blowing air pipe body and the defrosting air pipe body are detachably connected with the central face blowing air pipe body. The invention aims to reduce the manufacturing cost and the later maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of automotive component technology, and in particular to a dashboard air duct assembly, a dashboard assembly, and a vehicle. Background Technology

[0002] As an important air guiding component of the automotive air conditioning system, the dashboard air duct assembly typically integrates a central air duct, branch air ducts, and defrost ducts. It is used to guide the air conditioning air to the face of the occupants or the windshield. Its structural design directly affects the mold development cost and the overall vehicle assembly efficiency.

[0003] In existing technologies, dashboard air duct assemblies mostly adopt a one-piece injection molding structure, that is, the central air duct, branch air ducts, and defrost ducts are designed as an inseparable large component. However, due to the large size and complex shape of the product, this one-piece structure requires large-sized injection molds during the manufacturing process. This not only results in high mold development costs and long manufacturing cycles, but also in the difficulty of injection molding with large-sized molds, leading to a high risk of product warping and deformation, and making it difficult to control the yield rate. At the same time, the one-piece structure results in a large weight for individual components, increasing the labor costs for transportation and assembly. Furthermore, if a part of the air duct is damaged or blocked, the entire assembly often needs to be replaced, further increasing the subsequent maintenance costs. Summary of the Invention

[0004] The main objective of this invention is to provide an instrument panel air duct assembly, an instrument panel assembly, and a vehicle, with the aim of reducing manufacturing and subsequent maintenance costs.

[0005] To achieve the above objectives, the present invention proposes an instrument panel air duct assembly, comprising an independently configured central air duct body, branch air duct bodies, and defrost air duct bodies; wherein the branch air duct bodies and the defrost air duct bodies are detachably connected to the central air duct body.

[0006] In one embodiment, the defrosting duct body includes a front defrosting duct and at least one side defrosting duct; the front defrosting duct has a first insertion end, and the side defrosting duct has a second insertion end, wherein the first insertion end is inserted into the second insertion end.

[0007] In one embodiment, the instrument panel blower assembly further includes a snap-fit ​​structure, which includes a hook protruding from the first insertion end and a slot formed on the inner wall of the second insertion end, wherein the hook engages with the slot.

[0008] In one embodiment, a portion of the structure of the second plug end is recessed to form a limiting rib, which is press-fitted with the outer surface of the first plug end.

[0009] In one embodiment, at least one of the branch blowing air duct bodies includes a left blowing air duct and a right blowing air duct. The left blowing air duct and the right blowing air duct are each provided with a first mounting part on the side facing the central blowing air duct body. The first mounting part is provided with a first mounting hole.

[0010] A second mounting part is provided on one side of the central air blowing duct body, and a second mounting hole is provided on the second mounting part; The instrument panel air duct assembly also includes a first locking member, which passes through the first mounting hole and is locked in the second mounting hole.

[0011] In one embodiment, the central air duct body includes two central air ducts, a connecting part, and a water-absorbing component. The connecting part is located between the two central air ducts and has a concave position that is recessed downwards. A drain hole is provided at the lowest point of the concave position, and the water-absorbing component is attached to the drain hole.

[0012] In one embodiment, at least one of the central blowing air duct body, the branch blowing air duct body, and the defrosting air duct body has a plurality of raised rib structures on its top wall, and the plurality of rib structures are distributed in a grid pattern.

[0013] The present invention also provides an instrument panel assembly, characterized in that it comprises: Instrument panel frame; and As described above, the instrument panel air duct assembly is located on the instrument panel frame.

[0014] In one embodiment, a fastening element is provided on the top of the defrosting duct body. The fastening element includes a snap-fit ​​seat and an elastic snap-fit ​​arm. The snap-fit ​​seat is disposed on the defrosting duct body, one end of the elastic snap-fit ​​arm is disposed on the snap-fit ​​seat, and the other end of the elastic snap-fit ​​arm extends to the side opposite to the defrosting duct body. The instrument panel assembly also includes an instrument panel bracket, which has a snap-fit ​​hole that engages with the elastic snap-fit ​​arm.

[0015] The present invention also provides a vehicle, characterized in that it includes the dashboard assembly as described above.

[0016] The dashboard air duct assembly provided by this invention, through its modular, split-type structural design, solves the problems of large mold size, high development cost, difficult injection molding, and inconvenient maintenance associated with existing integrated air ducts. Specifically, this dashboard air duct assembly breaks down the traditional integrated structure into multiple independent modules, including a central air duct body, branch air duct bodies, and a defrost air duct body. Each module can be independently injection molded and then assembled into a whole through detachable connections (such as plug-in, snap-fit, or locking connections) to form a connected ventilation channel. Compared to existing technologies, this split manufacturing method significantly reduces the volume and projected area of ​​individual components, thereby lowering the tonnage requirements of injection molding machines and significantly reducing mold size, effectively lowering mold development and manufacturing costs. Simultaneously, the split structure facilitates transportation and assembly; if a particular air duct module is damaged or blocked, only that module needs to be disassembled and replaced, without replacing the entire assembly, greatly reducing maintenance costs and resource waste. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a structural embodiment of the instrument panel blower duct assembly provided by the present invention; Figure 2 A schematic diagram of another embodiment of the instrument panel blower assembly provided by the present invention; Figure 3 This is a schematic diagram of the structure of an embodiment of the defrosting duct body provided by the present invention; Figure 4 for Figure 3 Sectional view along the middle AA direction; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of an embodiment of the snap-fit ​​structure provided by the present invention; Figure 7 A schematic diagram of a structure of a central air blowing duct body according to an embodiment of the present invention; Figure 8 This is a schematic diagram of an embodiment of the rib structure provided by the present invention.

[0019] Explanation of icon numbers: 100. Instrument panel air duct assembly; 1. Central air duct body; 11. Central air duct; 12. Connecting part; 13. Drain hole; 14. Second mounting part; 141. Second mounting hole; 2. Branch air duct body; 21. Left air duct; 22. Right air duct; 23. First mounting part; 231. First mounting hole; 3. Defrosting air duct body; 31. Front defrosting air duct; 32. Side defrosting air duct; 4. Limiting rib; 5. Clip structure; 51. Hook; 52. Slot; 6. Rib structure.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] The present invention provides a dashboard air duct assembly 100.

[0025] Please refer to Figure 1 and Figure 2In one embodiment, the instrument panel air duct assembly 100 proposed by the present invention includes a central air duct body 1, branch air duct bodies 2, and a defrost air duct body 3, which are independently set; wherein the branch air duct bodies 2 and the defrost air duct bodies 3 are detachably connected to the central air duct body 1.

[0026] It should be noted that the central air duct body 1, as the core of the entire air duct assembly, is mainly used to receive the main airflow delivered by the vehicle's air conditioning system and evenly distribute the airflow to the branch air duct bodies 2 and defrost air duct bodies 3, providing a stable airflow foundation for the entire ventilation system. The central air duct body 1 can be made of PP material through blow molding or PE-HD material through injection molding. Both of these materials have good high temperature resistance and anti-aging properties, and can withstand the temperature changes of the air conditioning airflow for a long time without easily deforming or cracking.

[0027] The branch air duct body 2 is used to direct the airflow from the central air duct body 1 to the facial area of ​​the driver and passengers, achieving facial ventilation and improving their comfort. It is also made of the same PP material (blow-molded) or PE-HD material (injection-molded) as the central air duct body 1, ensuring overall structural consistency and compatibility, while possessing sufficient structural strength to withstand airflow pressure and vibrations during vehicle operation. The flow path of the branch air duct body 2 matches the position of the air outlet on the vehicle's dashboard, and the cross-sectional dimensions of the flow path are designed according to airflow requirements, ensuring that the airflow is evenly and stably blown out from the outlet, without uneven airflow or fluctuating airflow speed. The end connecting to the central air duct body 1 uses a compatible docking structure for easy assembly and disassembly. The defrosting duct body 3 is primarily used to direct the airflow from the central air duct body 1 to the surface of the vehicle's windshield and side windows, achieving defrosting and defogging functions, ensuring clear visibility for drivers and passengers, and improving driving safety. The defrosting duct body 3 can be made of PP material through blow molding or PE-HD material through injection molding, allowing it to withstand low-temperature environments outside the vehicle and preventing material embrittlement or damage due to temperature changes. The flow channel design of the defrosting duct body 3 conforms to the contours of the vehicle window glass, with the air outlet angled towards the glass surface to ensure that the airflow accurately targets the effective defrosting area of ​​the glass, improving defrosting efficiency while preventing direct airflow towards drivers and passengers from causing discomfort. Its connection to the central air duct body 1 also adopts a detachable structure for easy maintenance and replacement. Among them, the branch air blowing duct body 2 and the defrosting air duct body 3 are detachably connected to the central air blowing duct body 1. The detachable connection method can adopt common automotive parts assembly structures such as plug-in connection, snap-on connection or locking part connection, which can be disassembled and assembled without complicated tools, providing convenience for production assembly and later maintenance. The dashboard air duct assembly 100 provided by this invention, through its modular split structure design, solves the problems of large mold size, high development cost, difficult injection molding, and inconvenient maintenance associated with existing integrated air ducts. Specifically, the dashboard air duct assembly 100 breaks down the traditional integrated structure into multiple independent modules, such as the central air duct body 1, branch air duct bodies 2, and defrost air duct body 3. Each module can be independently injection molded and then assembled into a whole through detachable connections (such as plug-in, snap-fit, or locking connections) to form a connected ventilation channel. Compared with existing technologies, this split manufacturing method significantly reduces the volume and projected area of ​​individual components, thereby reducing the tonnage requirements of injection molding machines and significantly reducing mold size, effectively lowering mold development and manufacturing costs. At the same time, the split structure facilitates transportation and assembly. If a certain air duct module is damaged or blocked, only that module needs to be disassembled and replaced, without replacing the entire assembly, greatly reducing maintenance costs and resource waste.

[0028] Please refer to Figure 3 In one embodiment, the defrosting duct body 3 includes a front defrosting duct 31 and at least one side defrosting duct 32; the front defrosting duct 31 has a first insertion end, and the side defrosting duct 32 has a second insertion end, with the first insertion end inserted into the second insertion end.

[0029] It should be noted that the front defrost duct 31 is mainly used to deliver defrost airflow to the windshield. It extends along the width of the vehicle and features a gradually expanding flow channel design, which can evenly distribute the airflow to the entire effective defrost area of ​​the windshield, avoiding incomplete defrosting in certain areas. It is injection molded from the same engineering plastic as the defrost duct body 3, and the inner wall of the flow channel is smooth, reducing airflow resistance and wind noise.

[0030] The side defrosting duct 32 is used to deliver defrosting airflow to the vehicle's side windows, solving the problem of fogging affecting lateral visibility. The number of ducts can be designed to be one or more depending on the vehicle model, and they are typically symmetrically arranged on the left and right sides of the vehicle. Working in conjunction with the front defrosting duct 31, they achieve all-around defrosting. The flow path of the side defrosting duct 32 conforms to the contour of the side window glass, and the air outlet is precisely aligned with the inner side of the side window, ensuring that the airflow can efficiently act on the glass surface.

[0031] The front defrost duct 31 has a first insertion end, which can be a boss structure extending from the front defrost duct 31 toward the side defrost duct 32. The size of the boss is adapted to the mating structure of the side defrost duct 32 for easy insertion and assembly. The side defrost duct 32 has a second insertion end, which can be a groove structure opened on the side of the side defrost duct 32 toward the first insertion end. The inner diameter of the groove matches the outer diameter of the first insertion end, forming a clearance fit. This ensures that the first insertion end can be smoothly inserted while preventing excessive shaking after assembly.

[0032] In this embodiment, the first connector is inserted into the second connector, connecting the front defrost duct 31 and the side defrost duct 32. After connection, their internal flow channels are interconnected, ensuring smooth airflow from front to back to the side defrost duct 32, and then blowing onto the side window glass through the air outlet of the side defrost duct 32 to achieve the side window defrosting function. This connector structure requires no additional locking components, is easy to assemble, and ensures the airtightness of the airflow, reducing airflow leakage.

[0033] Please refer to Figure 6 In one embodiment, the dashboard air duct assembly 100 further includes a snap-fit ​​structure 5, which includes a hook 51 protruding from the first plug end and a groove 52 formed on the inner wall of the second plug end, wherein the hook 51 and the groove 52 engage in a snap-fit ​​relationship.

[0034] It should be noted that the snap-fit ​​structure 5 includes a snap hook 51 protruding from the first insertion end and a snap groove 52 formed on the inner wall of the second insertion end. The shape and size of the snap hook 51 and the snap groove 52 are matched to form a snap-fit ​​engagement. The structure is simple and easy to process, and a stable connection can be achieved without additional locking tools.

[0035] The hook 51 protrudes from the outer wall of the first insertion end and is integrally injection molded with the first insertion end. It is made of engineering plastic with a certain degree of elasticity and can undergo slight elastic deformation under force, making it easy to snap into the slot 52. At the same time, it has sufficient rigidity so that it is not easily deformed or broken after being snapped in. The end of the hook 51 is provided with a guide bevel, which facilitates smooth sliding into the slot 52 when inserted into the second insertion end, reducing assembly resistance.

[0036] The slot 52 is formed on the inner wall of the second insertion end. It is an inwardly recessed groove structure and is integrally formed with the second insertion end. The depth of the slot 52 is adapted to the length of the hook 51, ensuring that the hook 51 can be fully engaged in the slot 52 for reliable locking. The inner wall of the slot 52 is smooth to avoid scratching the surface of the hook 51 during engagement, while ensuring a good fit after engagement and reducing abnormal noise caused by vibration.

[0037] In this embodiment, when the first connector is inserted into the second connector, the hook 51 undergoes elastic deformation under the action of the guide slope. As the insertion depth increases, when the hook 51 reaches the slot 52, it resets under its own elasticity and snaps into the slot 52, thus locking and fixing the front defrosting duct 31 and the side defrosting duct 32. This snap-fit ​​structure 5 not only improves the connection stability but also facilitates disassembly. During disassembly, simply press the hook 51 gently to disengage it from the slot 52, and the first connector can be pulled out from the second connector, providing convenience for later maintenance.

[0038] Please refer to Figure 3 , Figure 4 as well as Figure 5 In one embodiment, a portion of the structure of the second insertion end is recessed to form a limiting rib 4, which is pressed into contact with the outer surface of the first insertion end.

[0039] It should be noted that the limiting rib 4 is a ring or strip-shaped protrusion formed by the inward indentation of the second plug end itself. It is integrally injection molded with the second plug end, and the material is consistent with the second plug end. It has a certain degree of elasticity and rigidity and can fit tightly with the outer surface of the first plug end.

[0040] The number of limiting ribs 4 can be set to one or more according to actual needs, and they are distributed circumferentially along the inner wall of the second insertion end to ensure uniform contact with the outer surface of the first insertion end and avoid local gaps. The protrusion height of the limiting ribs 4 is precisely designed to ensure that they can form a tight press with the outer surface of the first insertion end, but will not cause difficulty in inserting the first insertion end due to excessive pressure.

[0041] In this embodiment, the limiting rib 4 is pressed into the outer surface of the first plug end. On the one hand, it can fill the assembly gap between the first plug end and the second plug end, prevent airflow from leaking from the gap, and ensure the air outlet efficiency of the defrosting duct body 3. On the other hand, it can limit the radial shaking or axial displacement of the first plug end inside the second plug end, improve the coaxiality of the two after docking, reduce abnormal noise caused by vibration during vehicle operation, and further improve the overall rigidity of the connection structure.

[0042] Please refer to Figure 2 and Figure 7 In one embodiment, at least one branch blowing air duct body 2 includes a left blowing air duct 21 and a right blowing air duct 22. The left blowing air duct 21 and the right blowing air duct 22 are each provided with a first mounting part 23 on the side facing the central blowing air duct body 1. The first mounting part 23 is provided with a first mounting hole 231. A second mounting part 14 is provided on one side of the central air blowing duct body 1, and a second mounting hole 141 is provided on the second mounting part 14; The dashboard air duct assembly 100 also includes a first locking member, which passes through the first mounting hole 231 and is locked in the second mounting hole 141.

[0043] It should be noted that at least one branch face blowing duct body 2 includes a left face blowing duct 21 and a right face blowing duct 22, which correspond to the face blowing needs of the driver's seat and the passenger seat of the vehicle, respectively. They are symmetrically arranged on both sides of the central face blowing duct body 1 to deliver air to the faces of the drivers and passengers and improve driving and riding comfort.

[0044] Both the left-blowing duct 21 and the right-blowing duct 22 have a first mounting part 23 on the side facing the central-blowing duct body 1. The first mounting part 23 can be a lug structure or connecting piece extending outward from the duct body, integrally injection molded with the duct body, and made of the same material as the duct body, possessing sufficient structural strength to withstand the tightening force during locking. The first mounting part 23 has a first mounting hole 231, which is a through-hole or threaded hole that passes through the first mounting part 23, facilitating the insertion of the locking component. Its inner diameter is adapted to the outer diameter of the locking end of the first locking component, ensuring that the locking component can be smoothly inserted and achieve stable locking. The number of first mounting holes 231 can be set to one or more according to the connection strength requirements, and they are evenly distributed along the first mounting part 23.

[0045] A second mounting part 14 is provided on the side of the central air blowing duct body 1 facing the left air blowing duct 21 and the right air blowing duct 22. The second mounting part 14 can be a boss structure or connecting piece extending outward from the central air blowing duct body 1, integrally injection molded with the central air blowing duct body 1. Its position corresponds one-to-one with the first mounting part 23 of the left air blowing duct 21 and the right air blowing duct 22 to ensure precise alignment during docking. The second mounting part 14 is provided with a second mounting hole 141, which can be a round hole or a threaded hole that matches the first mounting hole 231. It can be designed as a threaded hole or a smooth hole according to requirements. Its number and position completely correspond to the first mounting hole 231. During assembly, the axes of the first mounting hole 231 and the second mounting hole 141 are kept aligned to ensure that the first locking member can be smoothly inserted. In addition, reinforcing ribs are added around the hole wall of the second mounting hole 141 to improve the structural strength of the hole wall and prevent deformation and cracking during locking.

[0046] Furthermore, the dashboard air duct assembly 100 also includes a first locking component. The first locking component serves as a detachable connection between the left air duct 21, the right air duct 22, and the central air duct body 1. Depending on the connection strength requirements, components such as stainless steel bolts and nylon locking nails can be selected to balance connection stability and lightweight requirements.

[0047] In this embodiment, the locking end of the first locking member passes through the first mounting hole 231 and is locked within the second mounting hole 141, achieving a stable connection between the left blowing air duct 21, the right blowing air duct 22, and the central blowing air duct body 1. If the second mounting hole 141 is a threaded hole, the locking end of the first locking member has an external thread, and locking is achieved through thread engagement; if it is a smooth hole, locking can be achieved through nut engagement. This locking method provides a reliable connection, can withstand vibration and impact during vehicle operation, and facilitates subsequent disassembly and maintenance. If one side of the blowing air duct is damaged, it can be disassembled and replaced separately without affecting other components.

[0048] In other embodiments, a third mounting part may be provided on the front defrosting duct 31, and a third mounting hole may be provided on the third mounting part; The first mounting part 23 is also provided with a fourth mounting hole, and the third mounting hole and the fourth mounting hole are connected by a second locking member.

[0049] It should be noted that the third mounting part provided on the front defrosting duct 31 can be a lug extending outward from the side wall of the duct or a connecting bracket, integrally formed with the duct body, and the third mounting hole opened on it is used for connection and fixation.

[0050] The fourth mounting hole additionally opened on the first mounting part 22 does not interfere with the first mounting hole 231 and can be respectively set on the left and right sides of the first mounting part 23. The third mounting hole and the fourth mounting hole are positioned correspondingly and aligned along their axes during assembly. The second locking member serves as a fastener connecting the front defrost duct 31 and the branch blowing duct body 2, and can be a bolt, screw, or snap-fit ​​connector. During assembly, the second locking member passes through the third and fourth mounting holes, securely connecting the front defrost duct 31 to the first mounting part 23 of the left blowing duct 21 or the right blowing duct 22.

[0051] Thus, the above connection method achieves a rigid connection and positioning between the defrosting duct and the blowing duct. Utilizing the existing first mounting part 23 of the blowing duct as the connection base, it eliminates the need for additional independent mounting brackets on the dashboard frame or other locations, simplifying the assembly structure and reducing the number of parts. Simultaneously, this connection method effectively limits the displacement and vibration of the front defrosting duct 31 during vehicle operation, preventing collisions or friction between ducts that could cause abnormal noise. This improves the structural stability and connection reliability of the defrosting duct system, ensuring the stability of the defrosting airflow delivery.

[0052] Please refer to Figure 7 In one embodiment, the central air duct body 1 includes two central air ducts 11, a connecting part 12, and a water-absorbing component. The connecting part 12 is located between the two central air ducts 11. The connecting part 12 has a concave position that is recessed downwards. A drain hole 13 is provided at the lowest point of the concave position. The water-absorbing component is attached to the drain hole 13.

[0053] It should be noted that both central air ducts 11 can be injection molded from the same engineering plastics, or they can be manufactured separately. The interior has a hollow flow channel structure. The structure of the two can be designed as symmetrical or asymmetrical according to actual needs to adapt to the spatial layout inside the instrument panel.

[0054] The connecting part 12 is located between the two central air ducts 11, serving to connect and fix the two central air ducts 11. It can be plate-shaped, strip-shaped, or block-shaped. The connecting part 12 can be integrally injection molded with the two air duct bodies, with the same material, strong overall structure, sufficient rigidity and deformation resistance, and can withstand airflow pressure and vehicle vibration. The connecting part 12 has a downwardly recessed concave position, which is a groove-like structure formed by the inward indentation of the surface of the connecting part 12. Its shape is arc-shaped or trapezoidal, which can effectively collect condensate generated in the airflow inside the central air duct body 1, preventing condensate from flowing freely inside the air duct, and thus preventing condensate from seeping into other parts inside the vehicle dashboard, causing damage to components or abnormal noise. A drain hole 13 is opened at the lowest point of the concave position. The drain hole 13 is a through-hole that passes through the connecting part 12, used to drain the condensate collected in the concave position outward, ensuring that condensate does not accumulate inside the air duct.

[0055] The absorbent component is attached to the drain hole 13. Made of porous absorbent material such as sponge or absorbent cotton, it possesses excellent absorbency and breathability, quickly absorbing condensate collected in the concave area and draining it through the drain hole 13. Simultaneously, it prevents airflow leakage through the drain hole 13, ensuring a stable flow field inside the duct. The absorbent component is fixed to the drain hole 13 with clips or adhesive, facilitating future disassembly and replacement and ensuring long-term stable absorbency.

[0056] In this embodiment, the concave position, combined with the drain hole 13 and the water suction component, enables effective collection and rapid discharge of condensate, preventing water from seeping into the dashboard and causing damage to components or abnormal noise. The design of the porous water suction component ensures smooth drainage while preventing airflow leakage, ensuring air outlet efficiency and flow field stability. Its easy-to-replace feature ensures long-term reliability. The overall structure has strong adaptability and significantly improves the durability of the vehicle air conditioning system.

[0057] Please refer to Figure 8 In one embodiment, at least one of the central blowing air duct body 1, the branch blowing air duct body 2, and the defrosting air duct body 3 has a plurality of raised rib structures 6 on its top wall, and the plurality of rib structures 6 are distributed in a grid pattern.

[0058] It should be noted that the rib structure 6 can be integrally injection molded from the top wall of the duct and protrude outwards, or it can be manufactured separately and then bonded or welded to the central blowing duct body 1, the branch blowing duct body 2, and the defrosting duct body 3. Its material is consistent with that of the central blowing duct body 1, the branch blowing duct body 2, and the defrosting duct body 3, requiring no additional assembly, making processing convenient, and not increasing production steps or costs. The cross-section of the rib structure 6 is triangular, rectangular, trapezoidal, or semi-circular, and its width or diameter can be set to approximately 1mm. It possesses good structural rigidity, effectively distributing the stress on the top wall of the duct and improving the deformation resistance of the top wall.

[0059] Furthermore, the multiple rib structures 6 are distributed in a grid pattern. This distribution not only allows the rib structures 6 to evenly distribute the force on the top wall of the duct, avoiding deformation caused by localized force concentration, improving the overall rigidity of the top wall of the duct, reducing deformation and vibration caused by airflow pressure, and reducing wind noise; more importantly, the grid-like rib structures 6 can effectively disperse falling condensate. When the generated condensate accumulates and falls to the top surface of the central blowing duct body 1, the branch blowing duct body 2, and the defrosting duct body 3, the raised rib structures 6, as blocking and dispersing structures, can break large water droplets or continuous water flow into fine water droplets, change the falling trajectory of the condensate, and prevent the condensate from flowing down along the top surface of the central blowing duct body 1, the branch blowing duct body 2, and the defrosting duct body 3 and directly impacting other electrical components.

[0060] In this embodiment, the mesh-like rib structure 6 enhances the structural strength and deformation resistance of the duct body, extends the product's service life, prevents condensation from damaging other electrical components, ensures the normal operation of the blowing and defrosting functions, and balances practicality and structural stability.

[0061] The present invention also provides an instrument panel assembly, including an instrument panel frame and an instrument panel air duct assembly 100. The specific structure of the instrument panel air duct assembly 100 is as described in the above embodiments. Since this instrument panel assembly adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The air duct assembly is located on the instrument panel frame.

[0062] It should be noted that the dashboard frame serves as the supporting foundation for the entire dashboard assembly. Made of high-strength metal, it possesses sufficient structural strength and rigidity to withstand the weight of the dashboard components and vibrations during vehicle operation. It also provides a stable mounting position for the dashboard air duct assembly 100. The dashboard frame's structure adapts to the spatial layout of the vehicle's cockpit, employing a modular design for easy assembly and disassembly of components. Its surface has pre-drilled mounting interfaces and fixing structures compatible with the dashboard air duct assembly 100, ensuring precise and secure installation of the air duct assembly.

[0063] The air duct assembly is mounted on the dashboard frame and connected to it using clips, bolts, and other fixing methods. Its installation position precisely aligns with the dashboard's air vents and defrost vents, ensuring that the airflow delivered by the air duct assembly can smoothly reach the faces of the drivers and passengers through the air vents and blow onto the windows through the defrost vents, achieving both face blowing and defrosting functions. The connection structure between the air duct assembly and the dashboard frame is detachable, facilitating future inspection and replacement of the air duct assembly.

[0064] In one embodiment, a fastening element is provided on the top of the defrosting duct body 3. The fastening element includes a snap-fit ​​seat and an elastic snap-fit ​​arm. The snap-fit ​​seat is provided on the defrosting duct body 3, one end of the elastic snap-fit ​​arm is provided on the snap-fit ​​seat, and the other end of the elastic snap-fit ​​arm extends to the side away from the defrosting duct body 3. The instrument panel assembly also includes an instrument panel bracket, which has snap-fit ​​holes that engage with flexible snap-fit ​​arms.

[0065] It should be noted that the top of the defrost duct body 3 is equipped with a fastener. The fastener serves as a connection structure between the defrost duct body 3 and other components of the dashboard assembly. It is used to securely fix the defrost duct body 3 to the dashboard frame or dashboard bracket to ensure that it will not loosen or shift during vehicle operation.

[0066] The fastening component includes a snap-fit ​​base and a flexible snap-fit ​​arm, both integrally injection molded from engineering plastics with good elasticity and rigidity. This allows it to withstand long-term vibration and impact without easily deforming or breaking. The snap-fit ​​base is located on the top of the defrost duct body 3 and is securely connected to it via snaps or adhesive, providing a stable mounting base for the flexible snap-fit ​​arm. The structure of the snap-fit ​​base conforms to the top contour of the defrost duct body 3, fitting snugly without occupying extra space and without affecting airflow. One end of the flexible snap-fit ​​arm is integrally molded with the snap-fit ​​base, while the other end extends away from the defrost duct body 3, forming a free end. The flexible snap-fit ​​arm has good elastic deformation capability; it can bend towards the defrost duct body 3 under force and automatically return to its original position after the force is removed, facilitating snap-fit ​​and disassembly.

[0067] The dashboard assembly also includes a dashboard bracket, which serves as an auxiliary support structure within the dashboard. It is fixedly connected to the dashboard frame and used to secure components such as the defrost duct body 3 and wiring harnesses, enhancing the overall structural integrity of the dashboard assembly. The dashboard bracket is made of high-strength engineering plastic, possessing sufficient structural strength to withstand the weight and vibration of the defrost duct body 3. The dashboard bracket features snap-fit ​​holes, which are round or square holes penetrating the bracket. Their shape and size are adapted to the free end of the flexible snap-fit ​​arm, ensuring smooth and secure engagement. The edges of the snap-fit ​​holes can be rounded to prevent scratching the surface of the flexible snap-fit ​​arm during engagement.

[0068] In this embodiment, the snap-fit ​​hole and the elastic snap-fit ​​arm engage. During assembly, simply align the free end of the elastic snap-fit ​​arm with the snap-fit ​​hole and gently press the defrost duct body 3. The elastic snap-fit ​​arm undergoes elastic deformation under the pressure of the snap-fit ​​hole, smoothly passing through the hole and then returning to its original position under its own elasticity. The edge of the snap-fit ​​hole limits the elastic snap-fit ​​arm, achieving a stable connection between the defrost duct body 3 and the dashboard bracket. This snap-fit ​​structure is easy to assemble without additional tools and facilitates subsequent disassembly, improving assembly and maintenance efficiency.

[0069] This invention also provides a vehicle, including an instrument panel assembly. The specific structure of this instrument panel assembly is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. It should be noted that the vehicle includes, but is not limited to, various motor vehicles equipped with this instrument panel assembly, such as passenger cars (sedans, SUVs, MPVs, crossovers, etc.) and commercial vehicles, without limiting specific models, brands, or power types (fuel, hybrid, pure electric, etc.). The instrument panel assembly of this vehicle integrates the aforementioned split-modular instrument panel air duct assembly 100, which not only solves the problems of high mold development costs, difficult injection molding, and inconvenient maintenance associated with existing integrated air ducts, but also reduces the production and maintenance costs of the vehicle and enhances its market competitiveness.

[0070] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A dashboard air duct assembly, characterized in that, It includes a central blowing air duct body, branch blowing air duct bodies, and a defrosting air duct body, all of which are independently set up; wherein, the branch blowing air duct bodies and the defrosting air duct bodies are detachably connected to the central blowing air duct body.

2. The instrument panel blower duct assembly as described in claim 1, characterized in that, The defrosting duct body includes a front defrosting duct and at least one side defrosting duct; the front defrosting duct has a first insertion end, and the side defrosting duct has a second insertion end, wherein the first insertion end is inserted into the second insertion end.

3. The instrument panel blower duct assembly as described in claim 2, characterized in that, The instrument panel air duct assembly also includes a snap-fit ​​structure, which includes a hook protruding from the first plug end and a slot formed on the inner wall of the second plug end, wherein the hook engages with the slot.

4. The instrument panel blower duct assembly as described in claim 2, characterized in that, The second plug end has a partially recessed structure to form a limiting rib, which is pressed into the outer surface of the first plug end.

5. The instrument panel blower duct assembly as described in any one of claims 1 to 4, characterized in that, At least one of the branch blowing air duct bodies includes a left blowing air duct and a right blowing air duct. The left blowing air duct and the right blowing air duct are each provided with a first mounting part on the side facing the central blowing air duct body. The first mounting part is provided with a first mounting hole. A second mounting part is provided on one side of the central air blowing duct body, and a second mounting hole is provided on the second mounting part; The instrument panel air duct assembly also includes a first locking member, which passes through the first mounting hole and is locked in the second mounting hole.

6. The dashboard air duct assembly as described in any one of claims 1 to 4, characterized in that, The central air duct body includes two central air ducts, a connecting part, and a water-absorbing component. The connecting part is located between the two central air ducts and has a concave position that is recessed downwards. A drain hole is provided at the lowest point of the concave position, and the water-absorbing component is attached to the drain hole.

7. The dashboard air duct assembly as described in any one of claims 1 to 4, characterized in that, At least one of the central blowing air duct body, the branch blowing air duct body, and the defrosting air duct body has a plurality of raised rib structures on its top wall, and the plurality of rib structures are distributed in a grid pattern.

8. An instrument panel assembly, characterized in that, include: Instrument panel frame; and The instrument panel air duct assembly as described in any one of claims 1 to 7, wherein the air duct assembly is disposed on the instrument panel frame.

9. The instrument panel assembly as described in claim 8, characterized in that, The top of the defrosting duct body is provided with a fastening component, which includes a fastening seat and an elastic fastening arm. The fastening seat is located on the defrosting duct body, one end of the elastic fastening arm is located on the fastening seat, and the other end of the elastic fastening arm extends to the side opposite to the defrosting duct body. The instrument panel assembly also includes an instrument panel bracket, which has a snap-fit ​​hole that engages with the elastic snap-fit ​​arm.

10. A vehicle, characterized in that, Includes the instrument panel assembly as described in claim 9.

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