Noise reduction air duct of automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air ducts, in particular to an automobile air conditioner noise reduction air duct which comprises an air conveying mechanism, and the air conveying mechanism comprises a rear passenger air duct body. According to the utility model, the plurality of guide partition plates are rotatably connected to the inner top wall of the air conveying channel II at equal intervals, the top ends of the plurality of limiting shaft rods are connected in series by matching the regulation and control plate with the connecting plate, the flow dividing partition plate is used for dredging and dispersing airflow, and the plurality of guide partition plates are used for positively guiding and steering the airflow passing through the transition bent pipe section; the two steel wire ropes are connected through the wire coil, so that the two sets of guide partition plates can balance each other to adjust the direction, airflow transition at the two transition bent pipe sections is automatically and properly guided, airflow stamping and vortex forming of the air duct transition section are reduced, airflow in the corner of the air duct can be conveniently dispersed and effectively guided, and the service life of the air duct is prolonged. Therefore, air duct vibration caused by airflow steering and impact is relieved, air duct noise is reduced, passenger experience is improved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air duct production, in particular to an automobile air conditioner noise reduction air duct. Background Art

[0002] The automobile air duct is an important channel for ventilation and temperature regulation inside the car. The automobile air duct includes an integrated component such as the front foot air duct, the driver's seat air duct and the rear passenger air duct, which are connected in series throughout the interior of the car body so that multiple exhaust ports in the car can be regulated synchronously. The rear passenger air duct is closer to the rear passengers, such as service vehicles such as taxis. If the air duct is noisy, the rear passengers will have a poor riding experience. Due to the sudden change of cross-section in the air duct, the local resistance at the corners and other obstacles is large, which often causes local airflow to impact the inner wall of the air duct and cause vibration, accompanied by the generation of vortices. Some existing automobile air ducts are not convenient for dispersing and effectively guiding the airflow in the corners of the air duct, resulting in a large airflow impact at the corners of the air duct, causing the air duct to generate more noise, reducing the riding experience of passengers and making it inconvenient to use. Utility Model Content

[0003] The utility model aims to provide a noise reduction air duct for automobile air conditioner to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A noise reduction air duct for automobile air conditioning comprises an air delivery mechanism, wherein the air delivery mechanism comprises a rear passenger air duct body, wherein two air delivery ducts 2 and one air delivery duct 1 are symmetrically arranged inside the rear passenger air duct body, wherein two transition bend sections are symmetrically arranged inside the rear passenger air duct body, wherein the air delivery duct 2 is connected to the adjacent air delivery duct 1 through the transition bend section, wherein the inner bottom surfaces of the two air delivery ducts 2 are equidistantly provided with a plurality of flow diversion baffles, wherein the inner top surfaces of the two air delivery ducts 2 are equidistantly provided with a plurality of guide baffles rotatably connected thereto, wherein a plurality of diversion plates are equidistantly fixedly connected to the two outer walls of the guide baffles, and wherein a control mechanism for synchronously controlling the angles of the plurality of guide baffles is provided on the top of the rear passenger air duct body.

[0006] Furthermore, a plurality of limit bearings are rotatably connected to the inner top wall of the second air supply duct, a plurality of limit shafts are equidistantly arranged inside the second air supply duct, the limit shafts penetrate the inner rings of adjacent limit bearings and are fixedly connected thereto, the top ends of the limit shafts penetrate the rear passenger air duct body and extend above it, and the bottom ends of the limit shafts are fixedly connected to the tops of the adjacent diversion plates.

[0007] Furthermore, a plurality of sealing members are fixedly connected to the top of the rear passenger air duct body at equal intervals, and the top end of the limiting shaft rod passes through adjacent sealing members and is movably engaged with the adjacent sealing members.

[0008] Furthermore, the regulating mechanism includes two regulating plates, the bottom of the regulating plates are equidistantly rotatably connected with a plurality of connecting shaft blocks, a connecting plate is fixedly sleeved on the outer wall of the connecting shaft block, and the top end of the limiting shaft rod passes through the adjacent ends of adjacent connecting plates and is fixedly connected thereto.

[0009] Furthermore, a holder is fixedly connected to the outer walls of the two regulating plates, a limit block is rotatably connected between the two inner walls of the holder, a steel wire rope is fixedly connected to the outer walls of the two limit blocks, a wire drum is rotatably connected to the top of the rear passenger air duct body, two fixed pulleys are rotatably connected to the top of the rear passenger air duct body, the two fixed pulley winding drums are symmetrically distributed at an oblique angle, and one end of the steel wire rope passes around the adjacent fixed pulley and is fixedly connected to the inner wall of the wire drum.

[0010] Furthermore, a contoured protective shell is fixedly connected to the top of the rear passenger air duct body.

[0011] Furthermore, one end of each of the plurality of diversion baffles and guide baffles is fixedly connected with a wind-breaking end.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Multiple guide baffles are connected to the inner top wall of the second air duct by rotating them at equal intervals, and the top ends of multiple limit shafts are connected in series through the regulating plate and the connecting plate. The diversion baffles guide and disperse the airflow, and multiple guide baffles actively guide and turn the airflow passing through the transition bend section. Two steel wire ropes are connected by a wire drum, so that the two groups of guide baffles can check and balance each other for direction adjustment, and automatically guide the airflow transition at the two transition bend sections appropriately, thereby reducing the airflow stamping and vortex formation in the transition section of the duct, facilitating the dispersion and effective guidance of the airflow in the corner of the duct, thereby alleviating the duct vibration caused by airflow turning and impact, reducing duct noise, improving passenger experience, and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a partial side section structure of the rear passenger air duct body of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the control mechanism of the utility model;

[0017] Figure 4 This utility model Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0018] Figure 5 It is a schematic diagram of the structure of the flow dividing baffle of the utility model.

[0019] In the figure: 10, air delivery mechanism; 11, rear passenger air duct body; 111, transition bend section; 112, air delivery duct one; 113, air delivery duct two; 12, diversion baffle; 13, guide baffle; 131, diversion plate; 132, limit shaft rod; 133, seal; 134, limit bearing; 14, regulating mechanism; 141, regulating plate; 142, connecting plate; 143, holder; 144, limit block; 145, wire rope; 146, wire drum; 147, fixed pulley; 148, connecting shaft block; 15, contoured protective shell; 16, wind-breaking end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 In an embodiment of the utility model, a noise reduction air duct for an automobile air conditioner includes an air delivery mechanism 10, and the air delivery mechanism 10 includes a rear passenger air duct body 11, and two air delivery ducts 2 113 and one air delivery duct 1 12 are symmetrically arranged inside the rear passenger air duct body 11, and two transition bend sections 111 are symmetrically arranged inside the rear passenger air duct body 11, and the air delivery duct 2 113 is connected to the adjacent air delivery duct 1 112 through the transition bend section 111, and the inner bottom surfaces of the two air delivery ducts 2 113 are equidistant from each other and have a plurality of diversion baffles 12, and the inner top surfaces of the air delivery ducts 2 113 are equidistantly rotatably connected to a plurality of guide baffles 13, and a plurality of diversion plates 131 are equidistantly fixedly connected to the two outer walls of the guide baffles 13, and a regulating mechanism 14 for synchronously regulating the angles of the plurality of guide baffles 13 is arranged on the top of the rear passenger air duct body 11.

[0022] Specifically, a plurality of guide baffles 13 are equidistantly connected to the inner top wall of the second air delivery duct 113 by rotating, and the top ends of a plurality of limit shafts 132 are connected in series through a regulating plate 141 cooperating with a connecting plate 142, so that the diverter baffle 12 guides and disperses the airflow, and a plurality of guide baffles 13 guide the airflow passing through the transition bend section 111, and two steel wire ropes 145 are connected by a wire drum 146, so that the two groups of guide baffles 13 can check and balance each other for direction adjustment, and when the airflow in the rear passenger air duct body 11 is stable, the airflow transition at the two transition bend sections 111 is automatically guided appropriately, thereby reducing the airflow stamping and vortex formation in the air duct transition section, thereby alleviating the air duct vibration caused by airflow turning and impact, so as to achieve the effect of reducing noise.

[0023] Embodiment 1

[0024] like Figure 3 As shown, in the present embodiment, a plurality of limit bearings 134 are rotatably connected to the inner top wall of the second air delivery duct 113, and a plurality of limit shafts 132 are equidistantly arranged inside the second air delivery duct 113. The limit shafts 132 pass through the inner rings of adjacent limit bearings 134 and are fixedly connected thereto. The top ends of the limit shafts 132 pass through the rear passenger air duct body 11 and extend above it, and the bottom ends of the limit shafts 132 are fixedly connected to the tops of the adjacent diversion plates 131.

[0025] In this embodiment, the limiting shaft 132 is rotationally limited by the limiting bearing 134, and the rotational friction between the limiting shaft 132 and the rear passenger air duct body 11 is reduced, thereby realizing the rotational limitation of the diversion plate 131, so that the angle of the diversion plate 131 can be adjusted.

[0026] like Figure 3-5 As shown, in this embodiment, a plurality of seals 133 are equidistantly fixed to the top of the rear passenger air duct body 11, the top end of the limiting shaft 132 passes through the adjacent seals 133 and is movably engaged therewith, and one end of the plurality of diversion baffles 12 and the guide baffles 13 are fixedly connected to a wind-breaking end 16.

[0027] In specific implementation, the sealing of the rotation connection of the limiting shaft 132 is enhanced by the seal 133, and the wind-breaking end 16 is used to enhance the wind-breaking efficiency of the end faces of the guide baffle 13 and the diversion baffle 12, so as to facilitate the guidance of the wind flow.

[0028] Embodiment 2

[0029] On the basis of the first embodiment, in order to enable the two groups of guide baffles 13 to automatically adapt to the adjustment angle, they can automatically check and balance each other to find a suitable angle to guide the airflow and alleviate the impact.

[0030] like Figure 3As shown, in this embodiment, the regulating mechanism 14 includes two regulating plates 141, and a plurality of connecting shaft blocks 148 are rotatably connected at the bottom of the regulating plate 141 at equal intervals. A connecting plate 142 is fixedly sleeved on the outer wall of the connecting shaft block 148, and the top of the limiting shaft rod 132 passes through the adjacent ends of the adjacent connecting plates 142 and is fixedly connected thereto. A holder 143 is fixedly connected to the outer walls of the two regulating plates 141, and a limiting block 144 is rotatably connected between the two inner walls of the holder 143. A steel wire rope 145 is fixedly connected to the outer walls of the two limiting blocks 144. A wire drum 146 is rotatably connected to the top of the rear passenger air duct body 11, and two fixed pulleys 147 are rotatably connected to the top of the rear passenger air duct body 11. The two fixed pulleys 147 and the wire drums 146 are symmetrically distributed at oblique angles. One end of the steel wire rope 145 passes around the adjacent fixed pulleys 147 and is fixedly connected to the inner wall of the wire drum 146, and a contoured protective shell 15 is fixedly connected to the top of the rear passenger air duct body 11.

[0031] In specific implementation, the connecting plate 142 is fixed to the top of the limiting shaft rod 132, and the limiting shaft rod 132 can be rotated by rotating the connecting plate 142, and multiple connecting plates 142 are connected in series through the regulating plate 141 and the connecting shaft block 148. The mobile regulating plate 141 can simultaneously rotate and regulate multiple limiting shaft rods 132 and diversion plates 131 through multiple connecting plates 142, so as to achieve synchronous regulation of the diversion plates 131 in the same group, change the guiding direction of the gas flow, and the fixed pulley 147 is used to guide the steel wire rope 145. When the wire rope 145 pulls the limit block 144 to move, the rotating connection between the limit block 144 and the holder 143 can prevent the connection from being pulled, so that the regulating plate 141 can be pulled normally, and the two wire ropes 145 are connected through the wire drum 146. A part of the two wire ropes 145 is wound around the inner wall of the wire drum 146, and the winding directions are opposite. When one of the wire ropes 145 pulls the wire drum 146 to rotate and release the wire, the other wire rope 145 will be wound and reeled in. The contoured protective shell 15 is used to protect its internal transmission components.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A noise reduction air duct for automobile air conditioner, characterized in that: The invention comprises an air delivery mechanism, wherein the air delivery mechanism comprises a rear passenger air duct body, wherein two air delivery ducts 2 and one air delivery duct 1 are symmetrically arranged inside the rear passenger air duct body, wherein two transition bend pipe sections are symmetrically arranged inside the rear passenger air duct body, wherein the air delivery duct 2 is connected with the adjacent air delivery duct 1 through the transition bend pipe section, wherein the inner bottom surfaces of the two air delivery ducts 2 are equidistantly provided with a plurality of diversion baffles, wherein the inner top surfaces of the two air delivery ducts are equidistantly provided with a plurality of guide baffles rotatably connected, wherein a plurality of diversion plates are equidistantly fixedly connected to the two outer walls of the guide baffles, and a control mechanism for synchronously controlling the angles of the plurality of guide baffles is arranged on the top of the rear passenger air duct body.

2. The automobile air conditioning noise reduction air duct according to claim 1, characterized in that: A plurality of limit bearings are rotatably connected to the inner top wall of the air delivery duct No. 2, and a plurality of limit shaft rods are equidistantly arranged inside the air delivery duct No. 2, the limit shaft rods penetrate the inner rings of adjacent limit bearings and are fixedly connected thereto, the top ends of the limit shaft rods penetrate the rear passenger air duct body and extend above it, and the bottom ends of the limit shaft rods are fixedly connected to the tops of adjacent diversion plates.

3. The automobile air conditioning noise reduction air duct according to claim 2, characterized in that: A plurality of sealing members are fixedly connected to the top of the rear passenger air duct body at equal intervals, and the top end of the limiting shaft rod penetrates through adjacent sealing members and is movably engaged with the adjacent sealing members.

4. The automobile air conditioning noise reduction air duct according to claim 2, characterized in that: The regulating mechanism includes two regulating plates, the bottom of the regulating plates are equidistantly rotatably connected with a plurality of connecting shaft blocks, the outer walls of the connecting shaft blocks are fixedly sleeved with connecting plates, and the top ends of the limiting shaft rods pass through adjacent ends of adjacent connecting plates and are fixedly connected thereto.

5. The automobile air conditioning noise reduction air duct according to claim 4, characterized in that: A holder is fixedly connected to the outer walls of the two regulating plates, a limit block is rotatably connected between the two inner walls of the holder, a steel wire rope is fixedly connected to the outer walls of the two limit blocks, a wire drum is rotatably connected to the top of the rear passenger air duct body, two fixed pulleys are rotatably connected to the top of the rear passenger air duct body, the two fixed pulley winding drums are symmetrically distributed at an oblique angle, and one end of the steel wire rope passes around the adjacent fixed pulley and is fixedly connected to the inner wall of the wire drum.

6. The automobile air conditioning noise reduction air duct according to claim 1, characterized in that: A contoured protective shell is fixedly connected to the top of the rear passenger air duct body.

7. The automobile air conditioning noise reduction air duct according to claim 1, characterized in that: One end of each of the plurality of flow dividing baffles and the guide baffles is fixedly connected with a wind-breaking end.

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