A front defrosting air duct structure and vehicle

Abstract

The application relates to a front defrosting air duct structure and a vehicle, the front defrosting air duct structure comprising a front defrosting cover plate, an instrument panel, a front wall sheet metal and a head-up display device, an auxiliary defrosting air duct being fixedly arranged on the inner side of the front defrosting cover plate, a main defrosting air duct being arranged at the bottom of the front defrosting cover plate, and one end of the auxiliary defrosting air duct being fixed with the main defrosting air duct; the instrument panel is arranged behind the front defrosting cover plate, the instrument panel is connected with the main defrosting air duct, and the other end of the auxiliary defrosting air duct is fixed with the instrument panel; the front wall sheet metal is arranged in front of the instrument panel and below the front defrosting cover plate; and the head-up display device is arranged in the space surrounded by the auxiliary defrosting air duct, the instrument panel and the front wall sheet metal. The auxiliary defrosting air duct is fixedly arranged on the inner side of the front defrosting cover plate, so that the auxiliary defrosting air duct is arranged in front of the head-up display device, one end of the auxiliary defrosting air duct is fixed with the main defrosting air duct, the other end of the auxiliary defrosting air duct is fixed with the instrument panel, and the front defrosting air duct on the driver side is increased.

Description

Technical Field

[0001] This application relates to the field of automobile manufacturing, specifically to a front defrosting air duct structure and vehicle. Background Technology

[0002] With the development of automotive intelligent technology, augmented reality head-up displays (AR-HUDs) are being used in more and more car models because they can project key information such as navigation and vehicle speed directly onto the windshield in front of the driver's field of vision, reducing the frequency of drivers looking down at the instrument panel.

[0003] In related technologies, HMI (Human-Machine Interface) interfaces are becoming increasingly sophisticated, with larger and clearer display interfaces. This has led to a continuous increase in the size of AR-HUD hardware structures, even encroaching on the space available for the dashboard air duct system, especially the space for the front defrost air duct vents. As a result, it is impossible to install front defrost air vents and air ducts on the driver's side, leading to excessively long defrosting and defogging times on the driver's side, which affects the driver's visibility and creates driving safety hazards.

[0004] Therefore, it is necessary to design a new front defrosting duct structure to overcome the above problems. Summary of the Invention

[0005] This application provides a front defrost duct structure and vehicle, which can solve the technical problem in the related technology that the hardware structure size of AR-HUD is constantly increasing, encroaching on the arrangement space of the front defrost duct air outlet, resulting in the inability to arrange the front defrost air outlet and duct on the driver's side, and the excessive defrosting and defogging time on the driver's side, which affects the driver's vision and causes driving safety hazards.

[0006] In a first aspect, embodiments of this application provide a front defrost duct structure, comprising: a front defrost cover, an instrument panel, a front bulkhead sheet metal, and a head-up display device. An auxiliary defrost duct is fixedly disposed on the inner side of the front defrost cover, and a main defrost duct is installed at the bottom of the front defrost cover. One end of the auxiliary defrost duct is fixed to the main defrost duct. The instrument panel is disposed behind the front defrost cover, connected to the main defrost duct, and fixed to the other end of the auxiliary defrost duct. The front bulkhead sheet metal is located in front of the instrument panel and disposed below the front defrost cover. The head-up display device is installed within the space enclosed by the auxiliary defrost duct, the instrument panel, and the front bulkhead sheet metal.

[0007] The auxiliary defrost duct is fixed to the inner side of the front defrost cover and is located in front of the head-up display. The auxiliary defrost duct extends from the connection point with the main defrost duct along the Y direction toward the instrument panel. The Y direction is the left-right direction. The auxiliary defrost duct avoids the main body area of ​​the head-up display, thereby increasing the front defrost duct on the driver's side and balancing the airflow between the driver's side and the passenger side.

[0008] In conjunction with the first aspect, in one embodiment, the auxiliary defrosting duct includes a first defrosting duct and a second defrosting duct that are interconnected. The first defrosting duct is fixed to the main defrosting duct via a first connector, and the second defrosting duct is fixed to the instrument panel via a second connector. The first defrosting duct includes an upper bracket and a lower bracket that are interlocked with each other. The lower bracket protrudes downward to form a first groove. The first groove and the upper bracket form a duct cavity. The air inlet end of the duct cavity is connected to the main defrosting duct, and the air outlet end of the duct cavity is connected to the defrosting port of the front defrosting cover.

[0009] The length of the first defrosting duct can be set to 280~320 mm, and the length of the second defrosting duct can be set to 460~490 mm. For example, the length of the first defrosting duct is set to 300 mm and the length of the second defrosting duct is set to 470 mm. The bottom surface of the upper bracket seals the opening of the first groove. The air duct cavity extends along the length direction of the first defrosting duct and communicates with the inner cavity of the second defrosting duct.

[0010] In conjunction with the first aspect, in one embodiment, the first defrost duct and the second defrost duct are configured as straight lines, the first connector is configured as an L-shape, the first connector is bolted to the main defrost duct, and the second connector is bolted to the instrument panel.

[0011] The first connector is L-shaped to reduce the turning radius of the main defrost duct. Without increasing the space occupied, it changes the direction of the main defrost duct, making the auxiliary defrost duct form a right angle with the main defrost duct, avoiding the main area of ​​the head-up display. This allows the auxiliary defrost duct to be placed in the area where the head-up display is located. At the same time, the first connector introduces the airflow from the main defrost duct into the auxiliary defrost duct, enabling rapid defrosting or defogging of the windshield in front of the driver. Demonstratively, two bolt mounting points are provided at the connection between the main defrost duct and the first connector, and at the connection between the instrument panel and the second connector. After the instrument panel, the main defrost duct, and the head-up display are installed, the first connector is fastened to the main defrost duct with two bolts, and the second connector is fastened to the instrument panel with two bolts.

[0012] In conjunction with the first aspect, in one embodiment, the lower support is inclined downward, the width of the first groove is set to 18~25 mm, and the depth of the first groove is set to 18~25 mm.

[0013] Based on the airflow landing point on the windshield and the CFD simulation results, the angle between the axis of the first groove and the windshield can be set to 15~30°. The inner wall of the first groove provides a guiding surface for the airflow, preventing the airflow from generating eddies at the corners. For example, the angle between the axis of the first groove and the windshield is set to 20°. Utilizing the Coanda effect, the airflow can flow close to the inner surface of the windshield instead of directly rushing towards a point on the windshield and then scattering. This can form an air curtain, allowing the airflow to cover a larger glass area. The width D of the first groove is set to 20 mm, and the depth H of the first groove is set to 20 mm. Where space permits, the size of the first groove can be appropriately increased to meet the CFD simulation results. The auxiliary defrosting duct is small in size and forms an independent duct cavity, which is arranged inside the front defrosting cover and in front of the head-up display device.

[0014] In conjunction with the first aspect, in one embodiment, the upper bracket protrudes downward to form multiple locking blocks, and the lower bracket is provided with multiple second grooves. The upper bracket engages with the lower bracket by locking the locking blocks into the corresponding second grooves.

[0015] The upper support includes a main body, with multiple spaced-apart locking blocks on both sides of the main body. The locking blocks engage with corresponding second grooves to seal the upper and lower supports. Exemplarily, the bottom of the upper support has nine gantry clips: four on one side of the main body and five on the other side. Four second grooves are located on one side of the first groove, and five on the other side. Each gantry clip engages with a corresponding second groove. The first defrosting duct is quickly assembled by engaging the upper and lower supports.

[0016] In conjunction with the first aspect, in one embodiment, the defrost port of the front defrost cover includes a main defrost port and an auxiliary defrost port that are interconnected. Both the main defrost port and the auxiliary defrost port extend to the left and right sides. The main defrost port is connected to the main defrost air duct, and the auxiliary defrost port is connected to the auxiliary defrost air duct.

[0017] The main defrost port is located in the middle of the front defrost cover and serves as the airflow outlet of the main defrost duct. The auxiliary defrost port is located on the left side of the front defrost cover and in front of the main defrost port and the head-up display device. The auxiliary defrost port serves as the airflow outlet of the auxiliary defrost duct. The length of the main defrost port is greater than the length of the auxiliary defrost port.

[0018] In conjunction with the first aspect, in one embodiment, the upper part of the auxiliary defrosting air duct is provided with an opening, the opening is connected to the auxiliary defrosting port, and the length of the opening is less than the length of the auxiliary defrosting port.

[0019] Considering the significant decrease in airflow and velocity at the outlet of the auxiliary defrosting duct, the opening extends to the left and right sides and is designed as a narrow, elongated strip. The length of the opening can be set to 70-85 mm, and the width can be set to 13-16 mm. Exemplarily, the length of the opening is set to 78 mm, and the width is set to 14 mm. The length of the opening is less than the length of the auxiliary defrosting port, which reduces the airflow loss of the auxiliary defrosting duct, increases the air velocity at the outlet, and improves the diffusion and rectification effect of the airflow at the auxiliary defrosting port. The opening is located on the upper support, and the auxiliary defrosting port is connected to the first defrosting duct. The airflow from the main defrosting duct enters the auxiliary defrosting duct through the first connector and enters the auxiliary defrosting port through the opening.

[0020] In conjunction with the first aspect, in one embodiment, both the main defrost port and the auxiliary defrost port are separated into multiple air distribution ports by a grille.

[0021] The grille is disposed within the main defrost port and the auxiliary defrost port, and separates the main defrost port and the auxiliary defrost port into multiple air distribution ports. The grille and the front defrost cover are configured as an integral structure. By changing the tilt angle of the grille of the auxiliary defrost port, the airflow angle is corrected to ensure that the airflow is directed to the main and secondary field of vision areas on the driver's side, thereby compensating for the defrost area obstructed by the head-up display device.

[0022] In conjunction with the first aspect, in one embodiment, the front sheet metal is provided with a sound insulation pad on the side facing the head-up display device.

[0023] The thickness of the sound insulation pad is adjusted according to the gap between the front sheet metal and the front defrost cover and the gap between the front sheet metal and the head-up display device. The sound insulation pad serves to insulate sound and reduce vibration.

[0024] Secondly, embodiments of this application provide a vehicle that includes a windshield and the aforementioned front defrosting duct structure.

[0025] The windshield is connected to the front defroster cover at its base. The front defroster cover has a mounting surface facing the windshield. An auxiliary defroster duct is fixed to the inner side of the front defroster cover and is located in front of the head-up display. The air outlet of the auxiliary defroster duct faces the windshield, thereby defrosting and defogging the windshield in the driver's area. The auxiliary defroster duct extends from its connection with the main defroster duct along the Y direction toward the instrument panel. The auxiliary defroster duct avoids the main body area of ​​the head-up display, thereby increasing the front defroster duct on the driver's side.

[0026] The beneficial effects of the technical solutions provided in this application include: By fixing an auxiliary defrosting air duct inside the front defrosting cover, the auxiliary defrosting air duct is positioned in front of the head-up display device. One end of the auxiliary defrosting air duct is fixed to the main defrosting air duct, and the other end is fixed to the instrument panel. This increases the front defrosting air duct on the driver's side, solving the technical problem in related technologies where the hardware structure size of AR-HUD is constantly increasing, encroaching on the arrangement space of the front defrosting air duct vent, resulting in the inability to arrange the front defrosting air vent and air duct on the driver's side, and the excessively long defrosting and defogging time on the driver's side, which affects the driver's vision and causes driving safety hazards. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A top view of the front defrost cover provided in an embodiment of this application; Figure 2 for Figure 1 Cross-sectional view of AA; Figure 3 An assembly diagram of the auxiliary defrosting air duct provided in the embodiments of this application; Figure 4 An assembly diagram of the auxiliary defrosting air duct and the main defrosting air duct provided in the embodiments of this application; Figure 5 A schematic diagram of the auxiliary defrosting air duct provided in an embodiment of this application; Figure 6 for Figure 5 Sectional view of BB; Figure 7 A schematic diagram of the upper support provided in an embodiment of this application; Figure 8 This is a schematic diagram of the lower support provided in an embodiment of this application.

[0029] In the diagram: 1. Front defrost cover; 11. Main defrost port; 12. Auxiliary defrost port; 2. Auxiliary defrost air duct; 21. First defrost air duct; 211. Upper bracket; 2111. Locking block; 212. Lower bracket; 2121. First groove; 2122. Second groove; 22. Second defrost air duct; 23. First connector; 24. Second connector; 25. Opening; 3. Main defrost air duct; 4. Instrument panel; 5. Front panel sheet metal; 6. Head-up display device; 7. Sound insulation pad. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0031] This application provides a front defrost duct structure and vehicle, which can solve the technical problem that the hardware structure size of AR-HUD is constantly increasing, encroaching on the arrangement space of the front defrost duct air outlet, resulting in the inability to arrange the front defrost air outlet and duct on the driver's side, and the excessive defrosting and defogging time on the driver's side, which affects the driver's vision and causes driving safety hazards.

[0032] See Figure 1-4 As shown in the figure, this application embodiment provides a front defrost air duct structure, which includes: a front defrost cover plate 1, an instrument panel 4, a front bulkhead sheet metal 5, and a head-up display device 6. An auxiliary defrost air duct 2 is fixedly provided on the inner side of the front defrost cover plate 1, and a main defrost air duct 3 is installed at the bottom of the front defrost cover plate 1. One end of the auxiliary defrost air duct 2 is fixed to the main defrost air duct 3. The instrument panel 4 is located behind the front defrost cover plate 1. The instrument panel 4 is connected to the main defrost air duct 3, and the other end of the instrument panel 4 is fixed to the auxiliary defrost air duct 2. The front bulkhead sheet metal 5 is located in front of the instrument panel 4 and is located below the front defrost cover plate 1. The head-up display device 6 is installed in the space enclosed by the auxiliary defrost air duct 2, the instrument panel 4, and the front bulkhead sheet metal 5.

[0033] In this embodiment, the auxiliary defrosting air duct 2 is fixed on the inner side of the front defrosting cover 1, and the auxiliary defrosting air duct 2 is located in front of the head-up display device 6. The auxiliary defrosting air duct 2 extends from the connection point with the main defrosting air duct 3 along the Y direction to the instrument panel 4. The Y direction is the left and right direction. The auxiliary defrosting air duct 2 avoids the main body area of ​​the head-up display device 6, thereby increasing the front defrosting air duct on the driver's side and balancing the airflow on the driver's side and the passenger side.

[0034] This embodiment fixes the auxiliary defrosting air duct 2 to the inner side of the front defrosting cover plate 1, so that the auxiliary defrosting air duct 2 is located in front of the head-up display device 6. One end of the auxiliary defrosting air duct 2 is fixed to the main defrosting air duct 3, and the other end of the auxiliary defrosting air duct 2 is fixed to the instrument panel 4. This increases the front defrosting air duct on the driver's side, which solves the technical problem in related technologies where the hardware structure size of AR-HUD is constantly increasing, encroaching on the arrangement space of the front defrosting air duct vent, resulting in the inability to arrange the front defrosting air vent and air duct on the driver's side, and the excessively long defrosting and defogging time on the driver's side, affecting the driver's vision and causing driving safety hazards.

[0035] Further, see Figure 2-5 As shown, in some embodiments, the auxiliary defrosting duct 2 includes a first defrosting duct 21 and a second defrosting duct 22 that are interconnected. The first defrosting duct 21 is fixed to the main defrosting duct 3 via a first connector 23, and the second defrosting duct 22 is fixed to the instrument panel 4 via a second connector 24. The first defrosting duct 21 includes an upper bracket 211 and a lower bracket 212 that are interlocked. The lower bracket 212 protrudes downward to form a first groove 2121. The first groove 2121 and the upper bracket 211 form a duct cavity. The air inlet end of the duct cavity is connected to the main defrosting duct 3, and the air outlet end of the duct cavity is connected to the defrost port of the front defrost cover 1.

[0036] In this embodiment, the length of the first defrosting duct 21 can be set to 280~320 mm, and the length of the second defrosting duct 22 can be set to 460~490 mm. Exemplarily, the length of the first defrosting duct 21 is set to 300 mm, and the length of the second defrosting duct 22 is set to 470 mm. The bottom surface of the upper bracket 211 seals the opening of the first groove 2121. The air duct cavity extends along the length direction of the first defrosting duct 21 and communicates with the inner cavity of the second defrosting duct 22.

[0037] Further, see Figure 2-5As shown, in some embodiments, the first defrost duct 21 and the second defrost duct 22 are configured as straight lines, the first connector 23 is configured as an L-shape, the first connector 23 is bolted to the main defrost duct 3, and the second connector 24 is bolted to the instrument panel 4.

[0038] In this embodiment, the first connector 23 is L-shaped to reduce the turning radius of the main defrosting air duct 3. Without increasing the space occupied, the direction of the main defrosting air duct 3 is changed so that the auxiliary defrosting air duct 2 forms a right angle with the main defrosting air duct 3, avoiding the main body area of ​​the head-up display device 6. This allows the auxiliary defrosting air duct 2 to be placed in the arrangement area of ​​the head-up display device 6. At the same time, the first connector 23 introduces the airflow of the main defrosting air duct 3 into the auxiliary defrosting air duct 2, realizing rapid defrosting or defogging of the windshield in front of the driver. Exemplarily, two bolt mounting points are provided at the connection between the main defrosting air duct 3 and the first connector 23, and at the connection between the instrument panel 4 and the second connector 24. After the instrument panel 4, the main defrosting air duct 3, and the head-up display device 6 are installed, the first connector 23 is fastened to the main defrosting air duct 3 with two bolts, and the second connector 24 is fastened to the instrument panel 4 with two bolts.

[0039] Further, see Figure 2 , Figure 5 and Figure 6 As shown, in some embodiments, the lower support 212 is inclined downward, the width of the first groove 2121 is set to 18~25 mm, and the depth of the first groove 2121 is set to 18~25 mm.

[0040] In this embodiment, based on the landing point of the airflow on the windshield and the CFD (fluid dynamics) simulation results, the angle between the axis of the first groove 2121 and the windshield can be set to 15~30°. The inner wall surface of the first groove 2121 provides a guiding surface for the airflow, preventing the airflow from generating eddies at the corner. Exemplarily, the angle between the axis of the first groove 2121 and the windshield is set to 20°. Utilizing the Coanda effect, the airflow can flow close to the inner surface of the windshield instead of directly rushing towards a point on the windshield. The airflow disperses, forming an air curtain that allows the airflow to cover a larger glass area. The width D of the first groove 2121 is set to 20 mm, and the depth H of the first groove 2121 is set to 20 mm. If space permits, the size of the first groove 2121 can be appropriately increased to meet the CFD simulation calculation results. The auxiliary defrosting air duct 2 is small in size and forms an independent air duct cavity, which is arranged inside the front defrosting cover plate 1 and in front of the head-up display device 6.

[0041] Further, see Figure 5-8 As shown, in some embodiments, the upper bracket 211 protrudes downward to form a plurality of locking blocks 2111, and the lower bracket 212 is provided with a plurality of second grooves 2122. The upper bracket 211 is engaged with the lower bracket 212 by the locking blocks 2111 being inserted into the corresponding second grooves 2122.

[0042] In this embodiment, the upper bracket 211 includes a body, and multiple spaced-apart locking blocks 2111 are provided on both sides of the body. The locking blocks 2111 are engaged with corresponding second grooves 2122 to achieve a seal between the upper bracket 211 and the lower bracket 212. Exemplarily, nine gantry clips are provided at the bottom of the upper bracket 211, four of which are located on one side of the body and five on the other side. Four second grooves 2122 are located on one side of the first groove 2121 and five on the other side. Each gantry clip is engaged with a corresponding second groove 2122. The first defrosting duct 21 is quickly assembled by engaging the upper bracket 211 and the lower bracket 212.

[0043] Further, see Figure 1-4 As shown, in some embodiments, the defrost port of the front defrost cover 1 includes a main defrost port 11 and an auxiliary defrost port 12 that are interconnected. Both the main defrost port 11 and the auxiliary defrost port 12 extend to the left and right sides. The main defrost port 11 is connected to the main defrost air duct 3, and the auxiliary defrost port 12 is connected to the auxiliary defrost air duct 2.

[0044] In this embodiment, the main defrost port 11 is located in the middle of the front defrost cover plate 1. The main defrost port 11 serves as the airflow outlet of the main defrost duct 3. The auxiliary defrost port 12 is located on the left side of the front defrost cover plate 1, and is located in front of the main defrost port 11 and in front of the head-up display device 6. The auxiliary defrost port 12 serves as the airflow outlet of the auxiliary defrost duct 2. The length of the main defrost port 11 is greater than the length of the auxiliary defrost port 12.

[0045] Further, see Figure 1 and Figure 3-5 As shown, in some embodiments, the upper part of the auxiliary defrosting air duct 2 is provided with an opening 25, the opening 25 is connected to the auxiliary defrosting port 12, and the length of the opening 25 is less than the length of the auxiliary defrosting port 12.

[0046] In this embodiment, considering that the air volume and air velocity at the outlet of the auxiliary defrosting duct 2 are significantly reduced, the opening 25 extends to the left and right sides and is designed as a narrow strip. The length of the opening 25 can be set to 70~85 mm, and the width of the opening 25 can be set to 13~16 mm. Exemplarily, the length of the opening 25 is set to 78 mm, and the width of the opening 25 is set to 14 mm. The length of the opening 25 is less than the length of the auxiliary defrosting port 12, which reduces the air volume loss of the auxiliary defrosting duct 2, increases the air velocity at the outlet of the opening 25, and improves the diffusion and rectification effect of the airflow at the auxiliary defrosting port 12. The opening 25 is set on the upper bracket 211, and the auxiliary defrosting port 12 is connected to the first defrosting duct 21. The airflow of the main defrosting duct 3 enters the auxiliary defrosting duct 2 through the first connector 23 and enters the auxiliary defrosting port 12 through the opening 25.

[0047] Further, see Figure 1 As shown, in some embodiments, both the main defrost port 11 and the auxiliary defrost port 12 are separated into multiple air distribution ports by a grille.

[0048] In this embodiment, the grille is disposed within the main defrost port 11 and the auxiliary defrost port 12, and the main defrost port 11 and the auxiliary defrost port 12 are separated into multiple air distribution ports. The grille and the front defrost cover plate 1 are configured as an integral structure. By changing the tilt angle of the grille of the auxiliary defrost port 12, the airflow angle is corrected to ensure that the airflow is directed to the main field of vision and the secondary field of vision on the driver's side, thereby compensating for the defrost area obstructed by the head-up display device 6.

[0049] Further, see Figure 2 As shown, in some embodiments, the front sheet metal 5 is provided with a sound insulation pad 7 on the side facing the head-up display device 6.

[0050] In this embodiment, the thickness of the sound insulation pad 7 is adjusted according to the gap between the front sheet metal 5 and the front defrost cover 1 and the gap between the front sheet metal 5 and the head-up display device 6. The sound insulation pad 7 plays a role in sound insulation and vibration reduction.

[0051] This application provides a vehicle that includes a windshield and the aforementioned front defrosting duct structure.

[0052] In this embodiment, the base of the windshield is connected to the front defrost cover 1. The front defrost cover 1 has a mounting surface facing the windshield. The auxiliary defrost duct 2 is fixed inside the front defrost cover 1 and is located in front of the head-up display 6. The air outlet of the auxiliary defrost duct 2 faces the windshield, thereby defrosting and defogging the windshield in the driver's area. The auxiliary defrost duct 2 extends from its connection with the main defrost duct 3 along the Y direction toward the instrument panel 4. The auxiliary defrost duct 2 avoids the main body area of ​​the head-up display 6, thereby increasing the front defrost duct on the driver's side.

[0053] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0054] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A front defrosting air duct structure, characterized in that, It includes: A front defrost cover (1) is provided with an auxiliary defrost air duct (2) fixed on the inner side of the front defrost cover (1), and a main defrost air duct (3) is installed at the bottom of the front defrost cover (1). One end of the auxiliary defrost air duct (2) is fixed to the main defrost air duct (3). Instrument panel (4), the instrument panel (4) is located behind the front defrost cover (1), the instrument panel (4) is connected to the main defrost air duct (3), and the instrument panel (4) is fixed to the other end of the auxiliary defrost air duct (2); Front panel (5), the front panel (5) is located in front of the instrument panel (4) and is disposed below the front defrost cover (1); Head-up display (6) is installed in the space enclosed by the auxiliary defrosting air duct (2), the instrument panel (4) and the front sheet metal (5).

2. The front defrosting duct structure as described in claim 1, characterized in that, The auxiliary defrosting duct (2) includes a first defrosting duct (21) and a second defrosting duct (22) that are interconnected. The first defrosting duct (21) is fixed to the main defrosting duct (3) via a first connector (23), and the second defrosting duct (22) is fixed to the instrument panel (4) via a second connector (24). The first defrosting duct (21) includes an upper bracket (211) and a lower bracket (212) that are interlocked. The lower bracket (212) protrudes downward to form a first groove (2121). The first groove (2121) and the upper bracket (211) form a duct cavity. The air inlet of the duct cavity is connected to the main defrosting duct (3), and the air outlet of the duct cavity is connected to the defrosting port of the front defrosting cover (1).

3. The front defrosting duct structure as described in claim 2, characterized in that, The first defrost duct (21) and the second defrost duct (22) are straight, the first connector (23) is L-shaped, the first connector (23) is bolted to the main defrost duct (3), and the second connector (24) is bolted to the instrument panel (4).

4. The front defrosting duct structure as described in claim 2, characterized in that, The lower support (212) is inclined downward, the width of the first groove (2121) is set to 18~25mm, and the depth of the first groove (2121) is set to 18~25mm.

5. The front defrosting duct structure as described in claim 2, characterized in that, The upper bracket (211) protrudes downward to form multiple locking blocks (2111), and the lower bracket (212) is provided with multiple second grooves (2122). The upper bracket (211) is engaged with the lower bracket (212) by locking the corresponding second grooves (2122) through the locking blocks (2111).

6. The front defrosting duct structure as described in claim 1, characterized in that, The defrost port of the front defrost cover (1) includes a main defrost port (11) and an auxiliary defrost port (12) that are connected to each other. Both the main defrost port (11) and the auxiliary defrost port (12) extend to the left and right sides. The main defrost port (11) is connected to the main defrost air duct (3), and the auxiliary defrost port (12) is connected to the auxiliary defrost air duct (2).

7. The front defrosting duct structure as described in claim 6, characterized in that, The upper part of the auxiliary defrosting air duct (2) is provided with an opening (25), the opening (25) is connected to the auxiliary defrosting port (12), and the length of the opening (25) is less than the length of the auxiliary defrosting port (12).

8. The front defrosting duct structure as described in claim 6, characterized in that, Both the main defrost port (11) and the auxiliary defrost port (12) are separated into multiple air distribution ports by a grille.

9. The front defrosting duct structure as described in claim 1, characterized in that, The front sheet metal (5) is provided with a sound insulation pad (7) on the side facing the head-up display device (6).

10. A vehicle, characterized in that, It includes a windshield and a front defrost duct structure as described in any one of claims 1-9.

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