Automobile air conditioner outlet pipe

Abstract

The utility model provides an automobile air conditioner outlet pipe which comprises an air conditioner outlet pipe body, and the two ends of the air conditioner outlet pipe body are detachably connected with a first filtering assembly and a second filtering assembly respectively. The first filtering assembly comprises a mounting cylinder and a connecting cylinder, the mounting cylinder and the connecting cylinder are slidably arranged at one end of the air conditioner outlet pipe body, one end of the connecting cylinder is fixedly connected with one end of the mounting cylinder, filtering pieces are arranged at the ends, away from each other, of the mounting cylinder and the connecting cylinder, and two spiral grooves formed in the same direction are formed in the inner wall of the connecting cylinder. According to the automobile air conditioner outlet pipe, a double-layer filtering detachable structure is adopted, airflow can be guided to rotate and flow in the axial direction, the radial speed component is reduced, vortex formation is restrained, the air speed of an air outlet is more uniform, energy consumption is reduced, a turbulent noise source can be eliminated when vortex formation is restrained, and noise of the air outlet of an air conditioner in an automobile is lowered.

Description

Technical Field

[0001] This utility model relates to the field of automotive piping technology, and in particular to an automotive air conditioning outlet pipe. Background Technology

[0002] The automotive air conditioning outlet pipe is a pipe that connects the refrigerant circulation loop of the automotive air conditioning system to the air outlet inside the vehicle. It is responsible for delivering the air that has been cooled or heated by the air conditioning system to the designated location inside the vehicle.

[0003] As consumers increasingly demand higher levels of comfort in-vehicle environments and greater energy efficiency from air conditioning systems, the design of existing air conditioning outlet pipes presents the following unresolved technical issues:

[0004] Firstly, traditional air conditioner outlet pipes mostly use a fixed or single-sided filter structure, with a filter screen only installed at one end of the outlet pipe. This cannot completely intercept impurities from inside the air conditioner, such as those falling off the evaporator surface, or contaminants from outside, such as foreign objects entering during maintenance. This makes it easy for mold and dust to grow at the air outlet, causing odors and airflow blockage. The fixed structure means that the air conditioner outlet pipe needs to be replaced entirely or cleaned when it becomes blocked. The air conditioner outlet pipe has many bends, making cleaning difficult and inconvenient to use.

[0005] Secondly, when the existing outlet pipe is in use, the cold / hot air output by the air conditioning system is prone to forming eddies or deflection in the outlet pipe, resulting in uneven airflow speed at the air outlet, poor cooling / heating effect in some areas, and the turbulent airflow can easily cause turbulent noise, affecting the quietness of the vehicle interior.

[0006] Furthermore, existing devices only use air conditioning filters to filter the air conditioning system. Air conditioning filters are usually installed in the air intake duct, before the blower, to filter the air entering the air conditioning system from the outside or inside the vehicle, preventing pollutants such as dust, pollen, and PM2.5 from entering the vehicle. However, the filter design is mainly for fine particles and is insufficient in intercepting large particles such as leaves and insects. If the vehicle is driven in a harsh environment, such as on an unpaved road, large particles may enter the system through the air intake and may directly block the evaporator or outlet pipe, causing airflow obstruction. In contrast, filters use fiber mesh, such as non-woven fabric or meltblown fabric, to capture tiny particles with a diameter smaller than the mesh pore size, such as PM2.5 and pollen particles, through inertial collision, interception, and diffusion mechanisms. The fiber diameter is usually on the micrometer scale and can form a dense mesh structure, which has a high interception efficiency for fine particles. Large particles, such as leaves and insects, are much larger than the mesh pore size and should theoretically be directly intercepted. However, in practice, filters need to take ventilation efficiency into account, so the pore size cannot be too small. This can cause some large particles to enter the system through the edge of the filter or through damage. Under long-term airflow impact or impact from large particles, the fibers may break or shift, forming local pore enlargement, allowing large particles to penetrate. After penetrating, large particles may get stuck on the inner wall of the outlet pipe, obstructing airflow. This prevents local condensate from evaporating, creating a breeding ground for mold. Consequently, airflow resistance increases, heat exchange efficiency decreases, resulting in longer air conditioning cooling time or higher outlet temperatures, causing inconvenience in actual use.

[0007] Therefore, it is necessary to provide a new automotive air conditioning outlet pipe to solve the above-mentioned technical problems. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides an automotive air conditioning outlet pipe.

[0009] The automotive air conditioning outlet pipe provided by this utility model includes: an air conditioning outlet pipe body, wherein filter assembly one and filter assembly two are detachably connected to both ends of the air conditioning outlet pipe body.

[0010] The filter assembly includes an installation cylinder and a connecting cylinder. The installation cylinder and the connecting cylinder are slidably disposed at one end of the air conditioner outlet pipe body. One end of the connecting cylinder is fixedly connected to one end of the installation cylinder. Filter elements are provided at opposite ends of the installation cylinder and the connecting cylinder. Two spiral grooves are formed on the inner wall of the connecting cylinder. Multiple oblique-cut guide plates for airflow are provided between the two spiral grooves. All of the oblique-cut guide plates are fixedly connected to the inner wall of the connecting cylinder.

[0011] Preferably, the filter assembly two includes multiple oblique-cut guide plates two, which are fixedly ring-shaped on the inner wall of the connecting cylinder, and are arranged parallel to the multiple oblique-cut guide plates one.

[0012] Preferably, both ends of the air conditioner outlet pipe body are detachably connected to connecting pipes, the first filter assembly and the second filter assembly are both located inside the air conditioner outlet pipe body, and the first filter assembly and the second filter assembly are both located at one end of the connecting pipe.

[0013] Preferably, both ends of the air conditioner outlet pipe body are detachably connected to connecting pipes, the first filter assembly and the second filter assembly are both located inside the air conditioner outlet pipe body, and the first filter assembly and the second filter assembly are both located at one end of the connecting pipe.

[0014] Preferably, a limiting ring is fixed to the end of the mounting cylinder away from the connecting cylinder, the outer side of the limiting ring slides on the inner wall of the limiting groove, a soft cotton layer is fixed to the outer side of the mounting cylinder, the soft cotton layer is located in the cavity, a limiting block is fixed to the outer side of the connecting cylinder, and the connecting cylinder slides on the inner wall of the sliding groove through the limiting block.

[0015] Preferably, the filter element includes an activated carbon layer one and an activated carbon layer two, wherein the activated carbon layer one and the activated carbon layer two are fixedly connected to the inner wall of the mounting cylinder and the inner wall of the connecting cylinder, respectively.

[0016] Compared with related technologies, the automotive air conditioning outlet pipe provided by this utility model has the following beneficial effects:

[0017] 1. This utility model forms a dual-level physical barrier by setting filter component one and filter component two at both ends of the air conditioner outlet pipe body, which can simultaneously intercept internal pollutants and external intruders, thus solving a series of problems caused by the traditional air conditioner outlet pipe body mostly adopting a single-sided filter structure.

[0018] 2. This utility model features a spiral groove on the inner wall of the mounting cylinder with a fixed oblique guide plate. The spiral groove guides the airflow to rotate axially, reducing the radial velocity component and suppressing vortex formation, resulting in more uniform airflow at the outlet and reduced energy consumption. While suppressing vortex formation, it can eliminate turbulence noise sources, reducing noise at the air conditioning outlet. Furthermore, multiple oblique guide plates are used, which cut into the airflow at a fixed angle to correct the flow path and ensure that the airflow deviation at each outlet is small, eliminating local cooling or heating blind spots. This solves a series of problems caused by the formation of vortices or flow deviations in the outlet pipe when the cold or hot air output by the air conditioning system is used, leading to uneven airflow at the outlet.

[0019] 3. This utility model provides filter assembly one and filter assembly two at both ends of the air conditioner outlet pipe body. Filter assembly one and filter assembly two are slidably connected to the outlet pipe body. The filter elements in filter assembly one and filter assembly two can intercept and filter large particles, preventing them from entering the interior of the air conditioner outlet pipe body and causing blockages. This makes the interior of the outlet pipe body less prone to blockage. When replacing, only filter assembly one and filter assembly two need to be replaced without replacing the air conditioner outlet pipe body. The operation is simple, the service life of the air conditioner outlet pipe body is extended, maintenance costs are reduced, and the problems of high cleaning difficulty or high maintenance costs caused by the fixed structure of traditional air conditioner outlet pipes are solved. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of the automotive air conditioning outlet pipe provided by this utility model;

[0021] Figure 2 A cross-sectional structural schematic diagram of the automotive air conditioning outlet pipe portion provided by this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of filter component one;

[0024] Figure 5 This is a cross-sectional structural diagram of the filter assembly.

[0025] Figure 6 This is a schematic diagram of the structure of activated carbon layer one;

[0026] Figure 7 This is a schematic diagram of the structure of filter component two.

[0027] The following are the labeling elements in the diagram: 1. Air conditioner outlet pipe body; 11. Connecting pipe; 12. Slide groove one; 13. Limiting groove; 14. Cavity; 2. Mounting cylinder; 21. Limiting ring; 22. Pull ring; 23. Soft cotton layer; 24. Activated carbon layer one; 3. Connecting cylinder; 31. Limiting block; 32. Spiral groove; 33. Angled guide plate one; 34. Activated carbon layer two; 35. Angled guide plate two. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figures 1 to 7 ,in, Figure 1 A schematic diagram of the overall structure of the automotive air conditioning outlet pipe provided by this utility model; Figure 2A cross-sectional structural schematic diagram of the automotive air conditioning outlet pipe portion provided by this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of filter component one; Figure 5 This is a cross-sectional structural diagram of the filter assembly. Figure 6 This is a schematic diagram of the structure of activated carbon layer one; Figure 7 This is a schematic diagram of the structure of filter component two.

[0030] In some embodiments, such as Figures 1 to 7 As shown, it includes an air conditioner outlet pipe body 1, and filter assembly 1 and filter assembly 2 are detachably connected to both ends of the air conditioner outlet pipe body 1.

[0031] The filter assembly includes an installation cylinder 2 and a connecting cylinder 3. The installation cylinder 2 and the connecting cylinder 3 are slidably disposed at one end of the air conditioner outlet pipe body 1. One end of the connecting cylinder 3 is fixedly connected to one end of the installation cylinder 2. Filter elements are provided at opposite ends of the installation cylinder 2 and the connecting cylinder 3. Two spiral grooves 32 arranged in the same direction are formed on the inner wall of the connecting cylinder 3. Multiple oblique-cut guide plates 33 for air diversion are provided between the two spiral grooves 32. The multiple oblique-cut guide plates 33 are fixedly connected to the inner wall of the connecting cylinder 3.

[0032] The second filter assembly includes multiple oblique-cut guide plates 35, which are fixed to the inner wall of the connecting cylinder 3, and are arranged in parallel with multiple oblique-cut guide plates 33.

[0033] Both ends of the air conditioner outlet pipe body 1 are detachably connected to connecting pipes 11. The connecting pipes 11 are interfaces with external equipment, such as evaporators, compressors, or air vents in the vehicle compartment or internal air ducts of the air conditioner. As a connection component with external pipes, it is easy to maintain or replace. The snap-fit ​​connection structure achieves a sealed connection with the outlet pipe body 1 to ensure no air leakage. Filter assembly one and filter assembly two are both located inside the air conditioner outlet pipe body 1, and both filter assembly one and filter assembly two are located at one end of the connecting pipe 11.

[0034] In the snap-fit ​​connection structure, the snap-fit ​​design is as follows: the end of the connecting pipe 11 is provided with elastic claws, there are 4 elastic claws, which are distributed in a ring. The end of the claws has a barb, and the corresponding position of the outlet pipe body 1 is provided with a ring groove.

[0035] The connection process is as follows: Align the claws of the connecting pipe 11 with the slots of the outlet pipe body 1 and push them in axially. During the pushing process, the claws are squeezed and undergo elastic deformation until they are fully inserted into the slot and then return to their original shape. The barbs are inserted into the slot to achieve axial and radial locking.

[0036] After the connecting pipe 11 is installed, the connecting pipe 1 will limit the ends of the filter assembly 2 and the filter assembly 1, that is, limit the ends of the mounting cylinder 2.

[0037] Among them, the installation directions of filter component 2 and filter component 1 are opposite. In practice, if the two are placed together, the oblique-cut guide plate 2 35 and the oblique-cut guide plate 1 33 are set oppositely and have opposite tilt angles. The tilt angle range of oblique-cut guide plate 1 33 and oblique-cut guide plate 2 35 is 15°-30°. Preferably, the angle between oblique-cut guide plate 1 33 and the positive x-axis is 25° and the angle between oblique-cut guide plate 1 33 and the positive x-axis is 155°. When oblique-cut guide plate 2 35 and oblique-cut guide plate 1 33 are respectively installed at both ends of the air conditioning outlet pipe body 1, multiple oblique-cut guide plates 2 35 and multiple oblique-cut guide plates 1 33 are set in parallel.

[0038] Specifically, by setting filter component one and filter component two at both ends of the air conditioner outlet pipe body 1, a two-level physical barrier is formed, which can simultaneously intercept internal pollutants and external intruders, and the interception effect is good.

[0039] Furthermore, by providing a spiral groove 32 on the inner wall of the mounting cylinder 2 and fixing oblique-cut guide plates 33 and 35, the spiral groove 32 can guide the airflow to rotate along the axial direction, reduce the radial velocity component, suppress vortex formation, make the air outlet air speed more uniform, reduce energy consumption, and eliminate turbulence noise sources when suppressing vortex formation, thus reducing the noise of the air conditioning outlet in the vehicle. In addition, multiple oblique-cut guide plates 33 and 35 are used, which cut into the airflow at 25° to correct the flow path and ensure that the air volume deviation of each outlet is small, thus eliminating local cooling or heating blind spots.

[0040] Furthermore, by providing filter assembly one and filter assembly two at both ends of the air conditioner outlet pipe body 1, filter assembly one and filter assembly two are slidably connected to the outlet pipe body 1. The filter elements in filter assembly one and filter assembly two can intercept and filter large particles, preventing them from entering the interior of the air conditioner outlet pipe body 1 and causing blockages. This makes the interior of the outlet pipe body 1 less prone to blockage. When replacing, only filter assembly one and filter assembly two need to be replaced without replacing the air conditioner outlet pipe body 1. The operation is simple, the service life of the air conditioner outlet pipe body 1 is extended, and the maintenance cost is reduced.

[0041] In some embodiments, reference is made to Figures 1 to 6As shown, both ends of the air conditioner outlet pipe body 1 are provided with a sliding groove 12 and a limiting groove 13. The width of the limiting groove 13 is greater than that of the sliding groove 12, which is used to limit the axial movement of the filter assembly. The limiting groove 13 is located at one end of the sliding groove 12. The inner wall of the air conditioner outlet pipe body 1 also forms two cavities 14, which are located between the sliding groove 12 and the limiting groove 13.

[0042] Limiting rings 21 are fixed at the ends of the mounting cylinder 2 away from the connecting cylinder 3. The outer side of the limiting rings 21 slides on the inner wall of the limiting groove 13. The outer diameter of the limiting rings 21 matches the inner diameter of the limiting groove 13 for axial positioning. The outer wall of the mounting cylinder 2 is wrapped with a soft cotton layer 23. The soft cotton layer 23 is compressed into the cavity 14 during assembly to form an elastic seal. A limiting block 31 is fixed on the outer side of the connecting cylinder 3. The connecting cylinder 3 slides on the inner wall of the slide groove 12 through the limiting block 31. The limiting block 31 slides in cooperation with the slide groove 12 to achieve axial guidance.

[0043] The filter element includes activated carbon layer 24 and activated carbon layer 34. Activated carbon layer 24 and activated carbon layer 34 are fixedly connected to the inner wall of the mounting cylinder 2 and the inner wall of the connecting cylinder 3, respectively, to form a two-stage filtration structure. Through the synergistic effect of activated carbon layer 24 and activated carbon layer 34, the filter achieves efficient adsorption of PM2.5 and odor molecules in the air inside the vehicle, blocks large particles from entering the interior of the air conditioning outlet pipe body 1, and significantly improves the air quality inside the vehicle.

[0044] In use, the limiting ring 21 of the mounting cylinder 2 is aligned with the limiting groove 13 of the outlet pipe body 1 and pushed in axially. At the same time, the limiting block 31 of the connecting cylinder 3 slides along the slide groove 12. When the limiting ring 21 is fully inserted into the limiting groove 13, the soft cotton layer 23 is deformed under pressure in the cavity 14, filling the gap between the mounting cylinder 2 and the outlet pipe body 1 to achieve radial sealing. When the soft cotton layer 23 is in the cavity 14, it will further limit the radial movement of the mounting cylinder 2 and the connecting cylinder 3.

[0045] Specifically, the soft cotton layer 23 is filled in the cavity 14, which can absorb the vibration generated by the airflow impact, reduce the noise level, and improve comfort.

[0046] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automobile air conditioner outlet pipe comprising an air conditioner outlet pipe body (1), characterized by, The air conditioner outlet pipe body (1) has filter assembly one and filter assembly two detachably connected to its two ends respectively. The filter assembly includes an installation cylinder (2) and a connecting cylinder (3). The installation cylinder (2) and the connecting cylinder (3) are slidably disposed at one end of the air conditioner outlet pipe body (1). One end of the connecting cylinder (3) is fixedly connected to one end of the installation cylinder (2). The opposite ends of the installation cylinder (2) and the connecting cylinder (3) are provided with filter elements. The inner wall of the connecting cylinder (3) forms two spiral grooves (32) arranged in the same direction. Between the two spiral grooves (32) are also provided a plurality of oblique-cut guide plates (33) for air diversion. The plurality of oblique-cut guide plates (33) are fixedly connected to the inner wall of the connecting cylinder (3).

2. The automotive air conditioning outlet pipe according to claim 1, characterized in that, The filter assembly 2 includes multiple oblique-cut guide plates 2 (35), which are fixed in a ring on the inner wall of the connecting cylinder (3), and are arranged in parallel with multiple oblique-cut guide plates 1 (33).

3. The automotive air conditioning outlet duct according to claim 2, wherein Both ends of the air conditioner outlet pipe body (1) are detachably connected to connecting pipes (11). The first filter assembly and the second filter assembly are both located inside the air conditioner outlet pipe body (1), and both the first filter assembly and the second filter assembly are located at one end of the connecting pipe (11).

4. The automotive air conditioning outlet duct according to claim 3, wherein Both ends of the air conditioner outlet pipe body (1) are provided with a sliding groove (12) and a limiting groove (13). The limiting groove (13) is located at one end of the sliding groove (12). The inner wall of the air conditioner outlet pipe body (1) also forms two cavities (14), which are located between the sliding groove (12) and the limiting groove (13).

5. The automotive air conditioning outlet duct according to claim 4, wherein Each of the mounting cylinders (2) has a limiting ring (21) fixed at one end away from the connecting cylinder (3). The outer side of the limiting ring (21) slides on the inner wall of the limiting groove (13). Each of the mounting cylinders (2) has a soft cotton layer (23) fixed on the outer side. The soft cotton layer (23) is located in the cavity (14). The outer side of the connecting cylinder (3) has a limiting block (31) fixed. The connecting cylinder (3) slides on the inner wall of the slide groove (12) through the limiting block (31).

6. The automotive air conditioning outlet duct according to claim 5, wherein The filter element includes activated carbon layer one (24) and activated carbon layer two (34), which are fixedly connected to the inner wall of the mounting cylinder (2) and the inner wall of the connecting cylinder (3), respectively.

Images