Air duct assembly of vehicle air conditioner

Abstract

The invention relates to the technical field of air conditioner air ducts, in particular to a vehicle air conditioner air duct assembly which comprises a ventilation duct, an end pipe is fixedly installed at a port of the ventilation duct, a connecting sleeve is arranged at a front port of the end pipe, an inner protruding part is arranged on the inner bottom face of the connecting sleeve, and an inclined face is arranged on the front edge of the inner protruding part. A collecting channel is formed in the inner bottom face of the connecting sleeve, a flow guide plate is fixedly arranged on the inner wall of the connecting sleeve and close to the upper portion of the collecting channel, a sliding plate is slidably connected to the front edge of the flow guide plate, an elastic contact piece is arranged at the upper end of the sliding plate, and oblique connecting plates are connected to the two sides of the lower end face of the sliding plate through shaking mechanisms correspondingly. By means of the air conditioner exhaust duct, dust can be prevented from entering the exhaust duct, when the air conditioner exhausts air, the dust can be helped to be discharged away, and when a user pokes the flow guide grid, the interior of the air conditioner exhaust duct can be cleaned, and dust accumulation can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning ducts, and in particular to an air-conditioning duct assembly for a vehicle. Background Art

[0002] The air supply duct on the car dashboard is an important part of the car air conditioning system. It is responsible for delivering processed air (such as cold air or warm air) into the car to provide passengers with a comfortable driving environment. The air supply duct on the car dashboard is usually composed of pipes, air outlets and connectors. The pipe is the main body of the air supply duct and is responsible for transmitting air; the air outlet is located at the end of the pipe and is responsible for evenly distributing the air into the car; the connector is used to connect the pipe and the air outlet to ensure the smooth flow of air. The structural design of the air supply duct usually takes into account the efficiency of air flow and noise control. In order to improve the efficiency of air flow, the cross-sectional shape and size of the air supply duct will be accurately calculated and optimized. At the same time, in order to reduce the generation of noise, the inner wall of the air supply duct will use smooth materials and avoid too many elbows and reducers. Due to the special shape of the dashboard, the air conditioning ventilation duct port is bent nearly 90 degrees to connect with the air outlet on the dashboard. Although a groove is provided on the inner bottom surface of the automobile air outlet to prevent dust from entering the ventilation duct, there is still a problem that dust enters the port of the ventilation duct, which makes it difficult to clean and maintain in the later stage, causing inconvenience. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a vehicle air conditioning duct assembly.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an air duct assembly for a vehicle air conditioner, comprising a ventilation duct, an end pipe is fixedly installed at the port of the ventilation duct, a front port of the end pipe is provided with a connecting sleeve, an inner bottom surface of the connecting sleeve is provided with an inner convex portion, a front edge of the inner convex portion is provided with an inclined surface, a collecting channel is provided on the inner bottom surface of the connecting sleeve, a guide plate is fixedly provided on the inner wall of the connecting sleeve and near the top of the collecting channel, a sliding plate is slidably connected to the front of the guide plate, an elastic contact piece is provided on the upper end of the sliding plate, both sides of the lower end surface of the sliding plate are respectively connected with miter plates through a shaking mechanism, an inclined scraper is fixedly connected to the lower end of the miter plate, the inclined scraper slides in contact with the surface of the inclined surface, the inclined scrapers on both sides are inclined downward in the direction of approaching each other, a plurality of blades are fixedly provided on the outer surface of the inclined scraper, and a through hole is provided on the side surface of the blade and near the upper surface of the inclined scraper;

[0005] After the end pipe is butted against the air outlet, the elastic contact piece contacts the guide fence, and as the guide fence rotates, the elastic contact piece moves laterally.

[0006] Preferably, the rear surface of the guide plate is provided with an inlet surface, and the front surface of the guide plate is provided with an outlet surface. The inlet surface is a curved surface, which can guide the airflow close to the inner bottom surface of the end tube into the collecting channel. The inner side of the collecting channel is designed as a curved surface, and the airflow flows out through the outlet surface after being guided. When the end tube is not exhausted, dust slides into the end tube along the inner bottom surface and is blocked by the collecting channel, preventing the dust from flowing further into the ventilation duct.

[0007] Preferably, the guide plate is fixedly connected to a guide rod at the front, and the sliding plate is fixedly connected to a sliding sleeve at the rear end, and the sliding sleeve is arranged on the outer surface of the guide rod. The sliding sleeve can move laterally along the surface of the guide rod to play a limiting role and prevent the sliding plate from separating from the guide plate.

[0008] Preferably, the elastic contact member comprises a plurality of guide cylinders fixedly connected to the upper surface of the connection block, a plug column is slidably inserted into the upper end of the guide cylinder, a sliding disk is fixedly connected to the lower end of the plug column, the sliding disk is slidably matched with the inner wall of the guide cylinder, a compression spring is fixedly connected to the lower surface of the sliding disk, the lower end of the compression spring is fixedly connected to the inner bottom surface of the guide cylinder, and the upper ends of the plurality of plug columns are fixedly connected to the moving block. When the moving block is squeezed, the plug column will move downward, the sliding disk squeezes the compression spring, and when the guide grid is no longer pushed, the sliding disk will move up and reset under the elastic force of the compression spring, thereby resetting the moving block.

[0009] Preferably, a contact pad is fixedly connected to the upper end of the moving block, and the contact pad is made of rubber. When the user moves the guide grid, the guide grid will touch the contact pad, causing the contact pad to move horizontally. When the contact pad is made of rubber, the contact pad that can move downward will not hinder the rotation of the guide grid. At the same time, because a large friction force is generated between the contact pad and the guide grid, when the moving block moves horizontally, it will drive the contact pad to move horizontally, thereby causing the connecting block and the inclined scraper to move horizontally, prompting the inclined scraper to perform a cleaning action.

[0010] Preferably, the shaking mechanism includes a sliding opening provided on the lower surface of the connecting block, an L-shaped block is slidably inserted into the inner side of the sliding opening, one side surface of the L-shaped block is fixedly connected to one end of a shaking spring, the other end of the shaking spring is fixedly connected to the inner wall of the sliding opening, and the upper end of the miter plate is fixedly connected to the lower end surface of the L-shaped block. When the inclined scraper moves laterally, the L-shaped block will move along the inner side of the sliding opening, and the cooperation between the L-shaped block and the sliding opening enables the L-shaped block to slide laterally without falling out of the sliding opening. When the shaking spring is squeezed, the elastic force of the shaking spring can drive the inclined scraper to move laterally and reset.

[0011] Preferably, the ends of the two inclined scrapers that are far from each other are respectively fixedly connected with end scrapers, and the end scrapers are in sliding contact with the surface of the inclined surface, and the plurality of blades are parallel to each other and arranged equidistantly. When the blades are subjected to unstable airflow and the blowing force at a local position is relatively large, the blades at the local position can be subjected to a relatively large blowing force to assist the scraping of the inclined scrapers.

[0012] Preferably, the ventilation duct is provided with two, the ends of the two ventilation ducts close to each other are fixedly connected with a connection seat, the rear surface of the ventilation duct is fixedly connected with a mounting plate, and the upper surface of the mounting plate is provided with a mounting hole. When it is installed under the car dashboard, it is installed by bolts in cooperation with the mounting holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, when ventilation is conducted inside the ventilation duct, the airflow near the inner bottom surface of the end tube is guided to the inner side of the collecting duct through the inlet surface, and the dust in the collecting duct is blown out, so that the dust is discharged along the outlet surface, and the inclined surface of the inner convex portion can assist in the dust discharge.

[0015] 2. When the end pipe of the present invention is ventilated, the connection position between the ventilation duct and the end pipe is in a bent state, and the airflow forms turbulence. Therefore, there is a part of the airflow in the end pipe that flows horizontally. The unstable and horizontally flowing part of the airflow produces a blowing effect when it contacts the blades, so that the inclined scraper moves laterally and scrapes the surface of the inclined surface to scrape out the accumulated dust. Since the inclined scraper is inclined, part of the dust can slide down along the upper surface of the inclined scraper to be guided to fall between the two inclined scrapers, which can effectively prevent the scraped dust from flowing backward to the surface of the inner convex part, and the dust can be avoided from being obstructed by the opening. The dust scraped by the lower surface of the inclined scraper will fall directly. Therefore, the inclined surface used to initially block the entry of dust can effectively avoid the problem of dust accumulation.

[0016] 3. In the present invention, when the user moves the guide grid, the guide grid will touch the contact pad, causing the contact pad to move laterally. At the same time, the plug column will move downward, and the sliding plate will squeeze the compression spring to ensure that the contact pad will not hinder the rotation of the guide grid. When the moving block moves laterally, it will drive the connecting block and the inclined scraper to move laterally to scrape the surface of the inclined surface to prevent dust accumulation that is difficult to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a vehicle air conditioning duct assembly of the present invention;

[0018] Figure 2 It is a schematic diagram of an end pipe of a vehicle air conditioning duct assembly of the present invention;

[0019] Figure 3This is a schematic diagram of the connection between the end pipe and the exhaust port of a vehicle air conditioning duct assembly of the present invention;

[0020] Figure 4 A vehicle air conditioning duct assembly of the present invention Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a cross-sectional view of a connection block of a vehicle air conditioning duct assembly of the present invention;

[0022] Figure 6 A vehicle air conditioning duct assembly of the present invention Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 This is a cross-sectional view of an end pipe of a vehicle air conditioning duct assembly of the present invention;

[0024] Figure 8 A vehicle air conditioning duct assembly of the present invention Figure 7 Enlarged view of point C in the middle;

[0025] Fig. 9 It is a schematic diagram of the local structure of an end pipe of a vehicle air conditioning duct assembly of the present invention;

[0026] Fig.10 A vehicle air conditioning duct assembly of the present invention Fig. 9 Enlarged view of point D in the middle.

[0027] 1. End pipe; 2. Connecting sleeve; 3. Inner convex part; 4. Inclined surface; 5. Guide plate; 6. Inlet surface; 7. Outlet surface; 8. Collecting channel; 9. Guide rod; 10. Sliding sleeve; 11. Sliding plate; 13. Connecting block; 14. Moving block; 15. Contact pad; 16. Insert column; 17. Guide cylinder; 18. Sliding disk; 19. Compression spring; 20. Sliding mouth; 21. L-shaped block; 22. Shaking spring; 23. Mitered plate; 24. Bevel scraper; 25. End scraper; 26. Blade; 27. Passing port; 28. Ventilation duct; 29. ​​Mounting plate; 30. Mounting hole; 31. Connecting seat; 32. Cover plate; 33. Exhaust port; 34. Guide grille. DETAILED DESCRIPTION

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0029] like Figure 1-Figure 10The vehicle air conditioning duct assembly shown includes a ventilation duct 28. The ventilation duct 28 is a prior art and is used to transport air flow. The port of the ventilation duct 28 is fixedly installed with an end pipe 1. The front port of the end pipe 1 is provided with a connecting sleeve 2. The connecting sleeve 2 can cooperate with the rear port of the exhaust port 33 to complete the socket connection during docking, and has a good fit to ensure that the air conditioning wind can enter the exhaust port 33 and then be discharged. The inner bottom surface of the connecting sleeve 2 is provided with an inner convex portion 3, and the front edge of the inner convex portion 3 is provided with an inclined surface 4. This part of the design can initially accumulate dust entering from the front end and accumulate it on the surface of the inclined surface 4. The inner bottom surface of the connecting sleeve 2 is provided with a collecting channel 8, and the collecting channel 8 is used for dust collection. Secondary accumulation, the dust entering will accumulate on the inner side of the collecting channel 8, the inner wall of the connecting sleeve 2 and near the top of the collecting channel 8 is fixedly provided with a guide plate 5, the front side of the guide plate 5 is slidably connected with a sliding plate 11, the upper end of the sliding plate 11 is provided with an elastic contact piece, the lower end surface of the sliding plate 11 is respectively connected with a miter plate 23 through a shaking mechanism, the lower end of the miter plate 23 is fixedly connected with an inclined scraper 24, the inclined scraper 24 slides in contact with the surface of the inclined surface 4, the inclined scrapers 24 on both sides are inclined downward in the direction of approaching, the outer surface of the inclined scraper 24 is fixedly sleeved with a plurality of blades 26, and the side surface of the blade 26 and near the upper surface of the inclined scraper 24 are provided with a through hole 27;

[0030] The front end of the exhaust port 33 is sleeved with a cover plate 32, which is used to assist in installation on the car dashboard. When in use, after the exhaust port 33 is inserted and the end pipe 1 is docked with the exhaust port 33, the elastic contact piece contacts the guide fence 34. As the guide fence 34 rotates, the elastic contact piece moves laterally.

[0031] like Figure 7 , Figure 8 As shown, the rear surface of the guide plate 5 is provided with an inlet surface 6, and the front surface of the guide plate 5 is provided with an outlet surface 7. The inlet surface 6 is a curved surface, which can guide the airflow close to the inner bottom surface of the end tube 1 into the collecting channel 8. The inner side of the collecting channel 8 is designed as a curved surface, and after guiding the airflow to flow, it flows out through the outlet surface 7. When the end tube 1 is not exhausted, the dust slides in along the inner bottom surface of the end tube 1, and is blocked by the collecting channel 8, preventing the dust from further flowing into the ventilation channel 28.

[0032] The front side of the guide plate 5 is fixedly connected with a guide rod 9, and the rear end of the sliding plate 11 is fixedly connected with a sliding sleeve 10, which is slidingly sleeved on the outer surface of the guide rod 9. The sliding sleeve 10 can move laterally along the surface of the guide rod 9 to play a limiting role and prevent the sliding plate 11 from being separated from the guide plate 5.

[0033] like Figure 3 , Figure 5 , Figure 6As shown, the elastic contact member includes a plurality of guide cylinders 17 fixedly connected to the upper surface of the connection block 13, the upper end of the guide cylinder 17 is slidably inserted with a plug post 16, the lower end of the plug post 16 is fixedly connected with a sliding plate 18, the sliding plate 18 is slidably matched with the inner wall of the guide cylinder 17, the lower surface of the sliding plate 18 is fixedly connected with a compression spring 19, the lower end of the compression spring 19 is fixedly connected to the inner bottom surface of the guide cylinder 17, and the upper ends of the plurality of plug posts 16 are fixedly connected with the moving block 14. When the moving block 14 is squeezed, the plug post 16 will move downward, the sliding plate 18 squeezes the compression spring 19, and when the guide fence 34 is no longer pushed, under the elastic force of the compression spring 19, the sliding plate 18 will move up and reset, thereby resetting the moving block 14.

[0034] The upper end of the moving block 14 is fixedly connected with a contact pad 15, which is made of rubber. When the user moves the guide fence 34, the guide fence 34 will touch the contact pad 15, causing the contact pad 15 to move horizontally. When the contact pad 15 is made of rubber, the contact pad 15 that can move downward will not hinder the rotation of the guide fence 34. At the same time, because a large friction force is generated between the contact pad 15 and the guide fence 34, when the moving block 14 moves horizontally, it will drive the contact pad 15 to move horizontally, thereby causing the connecting block 13 and the inclined scraper 24 to move horizontally, prompting the inclined scraper 24 to perform a cleaning action.

[0035] like Figure 5 , Figure 6 As shown, the shaking mechanism includes a sliding opening 20 provided on the lower surface of the connecting block 13, an L-shaped block 21 is slidably inserted into the inner side of the sliding opening 20, one side surface of the L-shaped block 21 is fixedly connected to one end of a shaking spring 22, the other end of the shaking spring 22 is fixedly connected to the inner wall of the sliding opening 20, and the upper end of the miter plate 23 is fixedly connected to the lower end surface of the L-shaped block 21. When the inclined scraper 24 moves laterally, the L-shaped block 21 will move along the inner side of the sliding opening 20, and the cooperation between the L-shaped block 21 and the sliding opening 20 enables the L-shaped block 21 to slide laterally and will not fall out of the sliding opening 20. When the shaking spring 22 is squeezed, the elastic force of the shaking spring 22 can drive the inclined scraper 24 to move laterally and reset.

[0036] like Fig. 9 , Fig.10 As shown, the ends of the two oblique scrapers 24 that are far from each other are respectively fixedly connected with end scrapers 25, and the end scrapers 25 are in sliding contact with the surface of the inclined surface 4. When the end scrapers 25 move laterally, the side ends of the oblique scrapers 24 can also be scraped, and the scraping is more comprehensive. A plurality of blades 26 are arranged parallel to each other and at equal distances. When the unstable airflow is applied, when the blowing force at a local position is large, the blades 26 at the local position can be subjected to a large blowing force to assist the scraping of the oblique scrapers 24.

[0037] like Figure 1As shown, two ventilation ducts 28 are provided, and a connection seat 31 is fixedly connected to the adjacent ends of the two ventilation ducts 28 for installation under the instrument panel to improve the stability of the installation arrangement. A mounting plate 29 is fixedly connected to the rear surface of the ventilation duct 28, and a mounting hole 30 is opened on the upper surface of the mounting plate 29. When installed under the instrument panel of the car, bolts are used to cooperate with the mounting hole 30 for installation.

[0038] When ventilating the inside of the ventilation duct 28, the airflow near the inner bottom surface of the end tube 1 is guided to the inner side of the collecting duct 8 through the inlet surface 6, blowing out the dust in the collecting duct 8, so that the dust is discharged along the outlet surface 7, and the inclined surface of the inner convex portion 3 can assist in the discharge of dust.

[0039] When ventilating the end pipe 1, since the connection position between the ventilation duct 28 and the end pipe 1 is in a bent state, the airflow forms turbulence, so there is a part of the airflow in the end pipe 1 that flows horizontally. The unstable and horizontally flowing part of the airflow produces a blowing effect when it contacts the blades 26, causing the inclined scraper 24 to move horizontally and scrape the surface of the inclined surface 4 to scrape out the accumulated dust. Since the inclined scraper 24 is inclined, part of the dust can slide down along the upper surface of the inclined scraper 24 to be guided to fall between the two inclined scrapers 24, which can effectively prevent the scraped dust from flowing backward to the surface of the inner convex portion 3. The opening 27 can avoid obstruction to the dust, and the dust scraped on the lower surface of the inclined scraper 24 will fall directly. Therefore, the inclined surface 4 used to initially prevent dust from entering can effectively avoid the problem of dust accumulation.

[0040] It should be noted that when the inclined scraper 24 moves laterally, the L-shaped block 21 will move along the inner side of the slide 20 to squeeze the shaking spring 22. The elastic force of the shaking spring 22 can drive the inclined scraper 24 to move laterally and reset.

[0041] When the user moves the guide fence 34, the guide fence 34 will touch the contact pad 15, causing the contact pad 15 to move laterally. At the same time, the plug post 16 will move downward, and the sliding plate 18 will squeeze the compression spring 19 to ensure that the contact pad 15 will not hinder the rotation of the guide fence 34. When the moving block 14 moves laterally, it will drive the connecting block 13 and the inclined scraper 24 to move laterally to scrape the surface of the inclined surface 4 to prevent dust accumulation that is difficult to remove.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle air conditioning duct assembly, comprising a ventilation duct (28), characterized in that: The end of the ventilation duct (28) is fixedly mounted with an end pipe (1), the front end of the end pipe (1) is provided with a connecting sleeve (2), the inner bottom surface of the connecting sleeve (2) is provided with an inner convex portion (3), the front edge of the inner convex portion (3) is provided with an inclined surface (4), the inner bottom surface of the connecting sleeve (2) is provided with a collecting channel (8), the inner wall of the connecting sleeve (2) and near the top of the collecting channel (8) is fixedly provided with a guide plate (5), the front edge of the guide plate (5) is slidably connected with a sliding plate (11), the upper end of the sliding plate (11) An elastic contact member is provided, and both sides of the lower end surface of the sliding plate (11) are respectively connected to a miter plate (23) through a shaking mechanism, and the lower end of the miter plate (23) is fixedly connected to an inclined scraper plate (24), and the inclined scraper plate (24) slides in contact with the surface of the inclined surface (4), and the inclined scrapers (24) on both sides are inclined downward in a direction close to each other, and the outer surface of the inclined scraper plate (24) is fixedly sleeved with a plurality of blades (26), and a through hole (27) is opened on the side surface of the blade (26) and close to the upper surface of the inclined scraper plate (24); After the end pipe (1) is butt-jointed with the air outlet (33), the elastic contact piece contacts the guide fence (34), and as the guide fence (34) rotates, the elastic contact piece moves laterally.

2. The vehicle air conditioning duct assembly according to claim 1, characterized in that: The rear surface of the guide plate (5) is provided with an inlet surface (6), and the front surface of the guide plate (5) is provided with an outlet surface (7).

3. The vehicle air conditioning duct assembly according to claim 1, characterized in that: The guide plate (5) is fixedly connected to a guide rod (9) at the front, and the sliding plate (11) is fixedly connected to a sliding sleeve (10) at the rear end. The sliding sleeve (10) is slidably mounted on the outer surface of the guide rod (9).

4. The vehicle air conditioning duct assembly according to claim 1, characterized in that: The elastic contact member comprises a plurality of guide cylinders (17) fixedly connected to the upper surface of the connecting block (13); a plug post (16) is slidably inserted into the upper end of the guide cylinder (17); a sliding disk (18) is fixedly connected to the lower end of the plug post (16); the sliding disk (18) is slidably matched with the inner wall of the guide cylinder (17); a compression spring (19) is fixedly connected to the lower surface of the sliding disk (18); the lower end of the compression spring (19) is fixedly connected to the inner bottom surface of the guide cylinder (17); and the upper ends of the plurality of plug posts (16) are commonly fixedly connected to the moving block (14).

5. The vehicle air conditioning duct assembly according to claim 4, characterized in that: The upper end of the moving block (14) is fixedly connected to a contact pad (15), and the contact pad (15) is made of rubber.

6. The vehicle air conditioning duct assembly according to claim 1, characterized in that: The shaking mechanism comprises a sliding opening (20) formed on the lower surface of the connecting block (13), an L-shaped block (21) being slidably inserted into the inner side of the sliding opening (20), one end of a shaking spring (22) being fixedly connected to a surface of one side of the L-shaped block (21), the other end of the shaking spring (22) being fixedly connected to the inner wall of the sliding opening (20), and the upper end of the miter plate (23) being fixedly connected to the lower end surface of the L-shaped block (21).

7. The vehicle air conditioning duct assembly according to claim 1, characterized in that: An end scraper (25) is fixedly connected to each of the ends of the two inclined scrapers (24) that are away from each other. The end scrapers (25) are in sliding contact with the surface of the inclined surface (4). The plurality of blades (26) are parallel to each other and are arranged at equal distances.

8. The vehicle air conditioning duct assembly according to claim 1, characterized in that: The ventilation ducts (28) are provided in two numbers, and the adjacent ends of the two ventilation ducts (28) are fixedly connected to a connection seat (31). The rear surface of the ventilation duct (28) is fixedly connected to a mounting plate (29), and the upper surface of the mounting plate (29) is provided with a mounting hole (30).

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