CN113276636A - Air outlet device of automobile air conditioner - Google Patents

Abstract

The utility model provides an air-out device of vehicle air conditioner belongs to the auto-parts field. The air outlet device comprises a shell, a fixed air guide structure and a rotary air guide structure; the inside of the shell is provided with a cavity, and the two opposite sides of the shell are respectively provided with an air inlet and an air outlet; the fixed air guide structure is fixed in the cavity, the fixed air guide structure is provided with a first air guide surface and a second air guide surface, the first air guide surface and the second air guide surface are opposite to the inner wall of the shell, and the first air guide surface and the second air guide surface are arranged at intervals in the direction from the air inlet to the air outlet; rotatory wind-guiding structure swing joint in the cavity, rotatory wind-guiding structure has the third wind-guiding surface, and this disclosure can be with low-cost realization vehicle air conditioner's air-out regulation through this air-out device.

Description

Air outlet device of automobile air conditioner

Technical Field

The utility model belongs to the auto-parts field, in particular to vehicle air conditioner's air-out device.

Background

In hot summer, the vehicle air conditioning system is used to cool the interior of the vehicle to meet the needs of the passengers. Generally, an air conditioning system of an automobile sends cold air into the automobile through an air outlet device to cool the inside of the automobile.

In the correlation technique, the air-out device includes casing, air-out structure and control. The air outlet structure comprises a plurality of strip-shaped blades. The blades are arranged in parallel and rotatably connected in the shell, and the extension direction of the rotating axis of each blade is consistent with the length direction of the blade. An air outlet channel is formed between every two adjacent blades and used for sending cold air into the vehicle from the shell. The control piece is used for being connected with a plurality of blades to control the blade and rotate, and then control the air-out direction of air-out passageway.

Because the blade is thin strip and numerous, cold air can be split by a plurality of blades when the air-out structure, produces the torrent, arouses great noise, leads to producing the abnormal sound in the car and influences the travelling comfort of riding.

Disclosure of Invention

The embodiment of the disclosure provides an air outlet device of an automobile air conditioner, which can realize air outlet adjustment of the automobile air conditioner at low cost. The technical scheme is as follows:

the embodiment of the disclosure provides an air outlet device of an automobile air conditioner, which comprises a shell, a fixed air guide structure and a rotary air guide structure; the inside of the shell is provided with a cavity, and the two opposite sides of the shell are respectively provided with an air inlet and an air outlet;

the fixed air guide structure is fixed in the cavity, the fixed air guide structure is provided with a first air guide surface and a second air guide surface, the first air guide surface and the second air guide surface are opposite to the inner wall of the shell, and the first air guide surface and the second air guide surface are arranged at intervals in the direction from the air inlet to the air outlet; the rotary air guide structure is movably connected in the cavity, the rotary air guide structure is provided with a third air guide surface and is configured to rotate between a first position and a second position, when the rotary air guiding structure is located at the first position, the third air guiding surface is located between the first air guiding surface and the second air guiding surface, and the first air guiding surface, the second air guiding surface and the third air guiding surface are in smooth transition, so that the airflow entering from the air inlet flows out of the air outlet along the first air guide surface, the third air guide surface and the second air guide surface, when the rotary air guide structure is located at the second position, an included angle is formed between the third air guide surface and the extension surface of the second air guide surface, and the airflow entering from the air inlet flows out of the air outlet along the first air guide surface and the third air guide surface.

In a further implementation manner of the present disclosure, the fixed air guiding structure includes two fixed blades, the two fixed blades are symmetrically arranged about a first plane, a length direction of the two fixed blades is parallel to the first plane, the two fixed blades respectively have one first air guiding surface and one second air guiding surface, a minimum distance between the first air guiding surface and the first plane is gradually increased from the beginning in a direction from the air inlet to the air outlet, and the minimum distance between the second air guiding surface and the first plane is gradually decreased until the minimum distance is equal to zero; the rotary air guide structure comprises two rotary blades, the two rotary blades are symmetrically arranged relative to the first plane, the two rotary blades correspond to the two fixed blades one to one, and the two rotary blades are respectively provided with a third air guide surface.

In another implementation manner of the present disclosure, in a direction from the air inlet to the air outlet, each of the fixed blades includes a fixed arc-shaped plate, an intermediate plate, and an inclined plate; the two opposite side edges of the middle plate are respectively connected with one side edge of the fixed arc-shaped plate and one side edge of the inclined plate, the first air guide surface is the arc-shaped outer surface of the fixed arc-shaped plate, and the second air guide surface is a plate surface of the inclined plate; the middle plate is bent to define a containing groove, and the containing groove is communicated with the cavity; the rotating blades are positioned in the corresponding accommodating grooves and are rotatably connected with the intermediate plate.

In another implementation manner of the present disclosure, an included angle between the two second wind guiding surfaces is 30-60 °.

In yet another implementation of the present disclosure, the rotating blade includes a rotating arc plate and a plurality of turning plates; the rotating arc-shaped plate is provided with an outer arc surface and an inner arc surface which are opposite, the outer arc surface is opposite to the inner wall of the cavity, and the outer arc surface is the third air guide surface;

in the length direction of the rotating blade, the plurality of rotating plates are connected to the intrados at intervals, and the plurality of rotating plates are rotatably connected to the middle plate.

In yet another implementation of the present disclosure, the arc where the fixed arc and the rotating arc meet is tangent to a second plane, the second plane being parallel to the first plane,

when the rotary air guide structure is located at the first position, the inclined plate is in butt joint with the rotary arc-shaped plate, and the butt joint of the inclined plate and the rotary arc-shaped plate is tangent.

In another implementation manner of the present disclosure, the air outlet device further includes a transmission assembly, the transmission assembly is located in the cavity, and the transmission assembly includes a rotating shaft, a first gear and a second gear; two ends of the rotating shaft are rotatably connected to the inner wall of the shell, and the axial direction of the rotating shaft is the same as the length direction of the rotating blades; the first gear is connected to the rotating shaft; the second gear is rotatably connected with the inner wall of the shell and is meshed with the first gear, and the second gear is provided with an eccentric ring groove; one of the plurality of rotating plates has a first rotating shaft rotatably inserted in the corresponding eccentric ring groove.

In another implementation manner of the present disclosure, the number of the first gears is two, and the two first gears are respectively connected to the rotating shaft at intervals along the axial direction of the rotating shaft and are both located in a space defined by the two fixed arc plates and the two intermediate plates; the number of the second gears is two, the two second gears are respectively located at two ends of the rotating blade along the length direction of the rotating blade, two rotating plates located on the outermost side in the plurality of rotating plates are respectively inserted into the two eccentric ring grooves of the second gears, and the two second gears are respectively meshed with the two first gears.

In another implementation manner of the present disclosure, the air outlet device further includes a positioning structure; the positioning structure comprises a plurality of positioning plates, the positioning plates are respectively connected to the inner wall of the shell, the positioning plates are positioned on two sides of the fixed air guide structure, and the fixed air guide structure is clamped in the shell through the positioning plates.

In yet another implementation of the present disclosure, the housing includes a top plate, a bottom plate, two side plates; the top plate and the bottom plate are oppositely arranged, and the two side plates are oppositely arranged and respectively connected between the top plate and the bottom plate; in the direction from the air inlet to the air outlet, the two side plates are provided with protruding parts protruding out of the top plate and the bottom plate, orthographic projections of the second air guide surfaces on the two side plates are respectively located on the corresponding protruding parts, and orthographic projection parts of the third air guide surfaces on the two side plates are located on the protruding parts.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

because fixed wind-guiding structure has first wind-guiding surface and second wind-guiding surface among this air-out device, rotatory wind-guiding structure has the third wind-guiding surface, so the cold air that enters into the casing inside can be hugged closely first wind-guiding surface, third wind-guiding surface, second wind-guiding surface flows or hugs closely first wind-guiding surface, third wind-guiding surface flows, like this alright avoid the air current to be split and produce the torrent phenomenon, and then the noise of greatly reduced air current when flowing, improve and drive the travelling comfort.

In addition, since the rotary air guiding structure can rotate between the first position and the second position, the position of the rotary air guiding structure can be adjusted so as to adjust the position of the third air guiding surface relative to the first air guiding surface and the third air guiding surface, so that the cold air flows out along the third air guiding surface or the second air guiding surface, and the flowing-out direction of the air flow can be changed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an air outlet device provided in the embodiment of the present disclosure;

fig. 2 is a side sectional view of an air outlet device provided in the embodiment of the present disclosure;

fig. 3 is an exploded view of an air outlet device provided in the embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a transmission gear provided by an embodiment of the present disclosure;

fig. 5 is a first usage state diagram of the air outlet device provided in the embodiment of the present disclosure;

fig. 6 is a second usage state diagram of the air outlet device provided in the embodiment of the present disclosure;

fig. 7 is a third usage state diagram of the air outlet device provided in the embodiment of the present disclosure.

The symbols in the drawings represent the following meanings:

1. a housing; 10. a cavity; 101. an air inlet; 102. an air outlet; 11. a top plate; 12. a base plate; 13. a side plate; 131. a protruding portion;

2. fixing the air guide structure; 201. a first wind-guiding surface; 202. a second wind-guiding surface; 21. a fixed blade; 211. fixing the arc-shaped plate; 212. a middle plate; 2121. a containing groove; 2122. a vertical connecting plate; 2123. a flat connection plate; 2124. an inclined connecting plate; 2125. a rotating seat; 213. a sloping plate;

3. rotating the air guide structure; 301. a third wind-guiding surface; 31. a rotating blade; 311. rotating the arc-shaped plate; 312. a rotating plate; 3121. a first rotating shaft; 3122. a connecting plate; 3123. a first rotating shaft;

4. a transmission assembly; 41. a first gear; 42. a second gear; 421. an eccentric ring groove; 422. a protruding shaft; 43. a rotating shaft;

5. a positioning structure; 51. positioning a plate;

6. the motor is driven.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The embodiment of the present disclosure provides an air outlet device of an automobile air conditioner, as shown in fig. 1, the air outlet device includes a housing 1, a fixed air guiding structure 2, and a rotary air guiding structure 3. The interior of the housing 1 has a cavity 10, and opposite sides of the housing 1 have an air inlet 101 and an air outlet 102, respectively. The fixed air guiding structure 2 is positioned in the cavity 10.

Fig. 2 is a side sectional view of the air outlet device provided in the embodiment of the present disclosure, and in conjunction with fig. 2, the fixed air guiding structure 2 has a first air guiding surface 201 and a second air guiding surface 202, the first air guiding surface 201 and the second air guiding surface 202 are both opposite to the inner wall of the housing 1, and the first air guiding surface 201 and the second air guiding surface 202 are arranged at intervals in a direction from the air inlet 101 to the air outlet 102. The rotary air guiding structure 3 is movably connected in the cavity 10, the rotary air guiding structure 3 is provided with a third air guiding surface 301, and the rotary air guiding structure 3 is configured to rotate between a first position and a second position. When the rotary air guiding structure 3 is located at the first position, the third air guiding surface 301 is located between the first air guiding surface 201 and the second air guiding surface 202, and the first air guiding surface 201, the second air guiding surface 202 and the third air guiding surface 301 are in smooth transition, so that the air flow entering from the air inlet 101 flows out from the air outlet 102 along the first air guiding surface 201, the third air guiding surface 301 and the second air guiding surface 202. When the rotary air guiding structure 3 is located at the second position, an included angle is formed between the third air guiding surface 301 and the extending surface of the second air guiding surface 202, so that the air flow entering from the air inlet 101 flows out from the air outlet 102 along the first air guiding surface 201 and the third air guiding surface 301.

Because fixed wind-guiding structure 2 has first wind-guiding surface 201 and second wind-guiding surface 202 among this air-out device, rotatory wind-guiding structure 3 has third wind-guiding surface 301, so the cold air that enters into the inside casing 1 can be hugged closely first wind-guiding surface 201, third wind-guiding surface 301, second wind-guiding surface 202 flows or hugs closely first wind-guiding surface 201, third wind-guiding surface 301 flows, just so can avoid the air current to be split and produce the torrent phenomenon, and then the noise of greatly reduced air current when flowing, improve and ride comfort.

Further, since the rotary air guiding structure 3 is rotatable between the first position and the second position, the position of the rotary air guiding structure 3 can be adjusted so as to adjust the position of the third air guiding surface 301 with respect to the first air guiding surface 201 and the second air guiding surface 202, so that the cold air flows out along the third air guiding surface 301 or the second air guiding surface 202, thereby changing the flow direction of the air flow.

That is to say, the air-out device that this disclosed embodiment provided utilizes the coanda effect for fluid can laminate this complete surface flow, and then falls and makes an uproar and control air current direction. Wherein the Kardan effect means that: fluid (water or air) tends to flow away from the original direction of flow and instead follow the surface of the protruding object. When there is surface friction (also called fluid viscosity) between the fluid and the surface of the object through which it flows, the fluid will follow the surface of the object as long as the curvature is not large, and this phenomenon is called coanda effect.

In this embodiment, when the rotary air guiding structure 3 is located at the second position, an included angle is formed between the third air guiding surface 301 and the extending surface of the second air guiding surface 202, that is, the air flow does not continue to flow along the second air guiding surface 202 after flowing along the third air guiding surface 301.

Optionally, the fixed air guiding structure 2 includes two fixed blades 21, the two fixed blades 21 are symmetrically arranged about a first plane a, a length direction of the two fixed blades 21 is parallel to the first plane a, the two fixed blades 21 respectively have a first air guiding surface 201 and a second air guiding surface 202, a minimum distance between the first air guiding surface 201 and the first plane a gradually increases from 0 in a direction from the air inlet 101 to the air outlet 102, and the minimum distance between the second air guiding surface 202 and the first plane a gradually decreases to 0. The rotary air guiding structure 3 includes two rotary blades 31, the two rotary blades 31 are symmetrically arranged about the first plane a, the two rotary blades 31 correspond to the two fixed blades 21 one by one, and each of the two rotary blades 31 has a third air guiding surface 301.

The fixed blade 21 is used for forming a first air guiding surface 201 and a second air guiding surface 202, so that the air flow entering from the air inlet 101 flows along the first air guiding surface 201 according to the coanda effect, and the phenomenon that the air flow is split to generate turbulence is avoided. Meanwhile, the air flow can flow out along the second air guiding surface 202 in an inclined state, so that the outflow direction of the air flow can be adjusted. Each rotating blade 31 is used for forming a third air guiding surface 301, and the rotating blade 31 is matched with the fixed blade 21, so that the air flow can be controlled to continuously flow along the second air guiding surface 202 and the third air guiding surface 301 after flowing along the first air guiding surface 201, or the air flow directly flows along the first air guiding surface 201, and finally the flowing direction of the air flow is adjusted.

Fig. 3 is an exploded view of the air outlet device provided in the embodiment of the present disclosure, and in conjunction with fig. 3, optionally, in a direction from the air inlet 101 to the air outlet 102, each of the fixed blades 21 includes a fixed arc-shaped plate 211, an intermediate plate 212, and a sloping plate 213. Opposite two side edges of the middle plate 212 are respectively connected with one side edge of the fixed arc-shaped plate 211 and one side edge of the inclined plate 213, the first air guide surface 201 is an arc-shaped outer surface of the fixed arc-shaped plate 211, and the second air guide surface 202 is a plate surface of the inclined plate 213. The intermediate plate 212 is bent to define a receiving groove 2121, and the receiving groove 2121 is communicated with the cavity 10. The rotary blades 31 are located in the corresponding accommodating grooves 2121, and the rotary blades 31 are rotatably connected to the middle plate 212.

Because fixed arc 211 is the arc, so fixed arc 211 can be convenient the first wind guiding surface 201 of formation for the air current can follow air intake 101 and get into the back, directly the laminating flows at the outer arc surface of fixed arc 211. The intermediate plate 212 is formed to define a receiving groove 2121 so as to provide a mounting base for the rotary blade 31. The sloping plate 213 is used to define the second air guiding surface 202, so that the air flow can flow out along the sloping plate 213 after following the third air guiding surface 301, so as to change the outflow direction of the air flow.

Illustratively, the middle plate 212 is a U-shaped structural member with an asymmetric structure, wherein the middle plate 212 includes a vertical connecting plate 2122, a flat connecting plate 2123 and an inclined connecting plate 2124 connected in sequence in a direction from the air inlet 101 to the air outlet 102, and one side of the vertical connecting plate 2122 is vertically connected to the plate surface of the flat connecting plate 2123. This can conveniently define the container 2121 to be coupled with the rotary blade 31.

In this embodiment, the fixing arc plate 211, the intermediate plate 212, and the inclined plate 213 are welded together or integrally formed.

Referring again to fig. 2, optionally, the included angle between two second wind guiding surfaces 202 is 30-60 °, that is, the included angle α between any one of the first wind guiding surfaces 201 and the first plane is 15-30 °. This makes it possible to prevent the inclination angle of the swash plate 213 from being too large or too small. If the inclination angle is too small, the direction of the air flow flowing out along the second air guide surface 202 is horizontal, which is not beneficial to changing the direction of the air flow, and if the inclination angle is too large, the direction of the air flow flowing out along the second air guide surface 202 is vertical, which cannot be blown into the vehicle in the forward direction, and further affects the cooling effect.

Referring again to fig. 3, optionally, the rotating blade 31 includes a rotating arc plate 311 and a plurality of rotating plates 312. The rotating arc plate 311 has an outer arc surface and an inner arc surface opposite to each other, the outer arc surface being opposite to the inner wall of the cavity 10, and the outer arc surface being the third air guiding surface 301. In the longitudinal direction of the rotary blade 31, a plurality of rotary plates 312 are connected to the intrados at intervals, and the plurality of rotary plates 312 are each rotatably connected to the intermediate plate 212.

The rotating arc plate 311 is used for defining the third air guiding surface 301, and the rotating plate 312 is used for connecting with the middle plate 212 to realize rotation, so as to control whether the third air guiding surface 301 smoothly connects the first air guiding surface 201 and the second air guiding surface 202 together. When the third air guiding surface 301 is integrated with the first air guiding surface 201 and the second air guiding surface 202 in a smooth transition manner, the air flow can be blown along the first fixed arc plate 211, the first rotating arc plate 311 and the inclined plate 213 due to the coanda effect, and finally the air flow can be blown upwards or downwards along the inclined plate 213. When the third air guiding surface 301 is not joined to the first air guiding surface 201 and the second air guiding surface 202 in a smooth transition, the air flow can be blown along the first fixed arc 211 due to the coanda effect.

Referring again to fig. 2, optionally, the arc surface of the joint of the fixed arc plate 211 and the rotating arc plate 311 is tangent to a second plane b, which is parallel to the first plane a, when the rotary air guiding structure 3 is located at the first position, the inclined plate 213 is butted with the rotating arc plate 311, and the inclined plate 213 is tangent to the joint of the rotating arc plate 311.

The arc surface of the joint of the fixed arc plate 211 and the rotating arc plate 311 is tangent to the second plane, so that the airflow is horizontal when flowing out along the first air guiding surface 201. The joint of the inclined plate 213 and the rotating arc-shaped plate 311 is tangent, so that the rotating arc-shaped plate 311 and the inclined plate 213 can be smoothly transited during connection.

Referring again to fig. 3, optionally, the rotating plate 312 includes a first rotating shaft 3121 and a connecting plate 3122. A first end of the first rotating shaft 3121 is vertically coupled to the coupling plate 3122, and a second end of the first rotating shaft 3121 is rotatably inserted into the inclined coupling plate 2124 of the middle plate 212. The outer arc surface of the connecting plate 3122 is connected with the inner arc surface of the rotating arc plate 311.

The connecting plate 3122 is adapted to be connected to the rotating arc plate 311, and the first rotating shaft 3121 is adapted to be rotatably connected to the inclined connecting plate 2124.

Illustratively, the connecting plate 3122 is a trapezoid structure, and the side of the connecting plate 3122 facing the rotating arc plate 311 is arc-shaped, so as to be conveniently connected with the rotating arc plate 311.

In this embodiment, in order to facilitate the connection between the inclined connecting plate 2124 of the middle plate 212 and the first rotating shaft 3121, the middle plate 212 further includes a plurality of rotating seats 2125, the plurality of rotating seats 2125 are connected to the inclined connecting plate 2124 of the middle plate 212 at intervals along the length direction of the middle plate 212, the plurality of rotating seats 2125 correspond to the plurality of first rotating shafts 3121 one by one, and the second ends of the first rotating shafts 3121 are rotatably inserted into the corresponding rotating seats 2125.

In this embodiment, the rotating base 2125 is welded to the inclined connecting plate 2124.

Illustratively, the number of the rotating plates 312 is four, and the four rotating plates 312 are symmetrically arranged on the intrados of the rotating arc plate 311 with a plane perpendicular to the first surface as a symmetry plane. This enables the first rotation shafts 3121 to be alternately located at both sides of the connection plate 3122, thereby improving the degree of connection between the rotary blade 31 and the fixed blade 21 and preventing the separation of the two. Of course, the number of the rotating plates 312 may be set according to actual needs, and the embodiment of the disclosure does not limit this.

In this embodiment, the rotating blade 31 is an integrally formed structural member.

After the two rotating blades 31 and the two fixed blades 21 are installed in a matching manner, the whole body is in a drop shape, and the total length L of the fixed blades 21 is about 50 mm-70 mm from the air inlet 101 to the air outlet 102. The height H of the fixed vane 21 in the axial direction perpendicular to the first plane a is about 25mm to 35 mm.

With continued reference to fig. 3, optionally, the air outlet device further includes a transmission assembly 4, the transmission assembly 4 is located in the cavity 10, and the transmission assembly 4 includes a rotating shaft 43, a first gear 41 and a second gear 42. Both ends of the rotation shaft 43 are rotatably coupled to the inner wall of the housing 1, and the axial direction of the rotation shaft 43 is the same as the longitudinal direction of the rotary blade 31. The first gear 41 is connected to a rotating shaft 43. The second gear 42 is rotatably coupled to the inner wall of the housing 1, and the second gear 42 is engaged with the first gear 41.

Fig. 4 is a schematic structural diagram of a transmission gear provided in an embodiment of the present disclosure, and in conjunction with fig. 4, the second gear 42 has an eccentric ring groove 421. The eccentric ring groove 421 is a ring groove, and a center O2 of the ring groove does not coincide with a center O1 of the second gear 42. One of the plurality of rotating plates 312 has a first rotating shaft 3123, and the first rotating shaft 3123 is rotatably inserted into the corresponding eccentric ring groove 421.

The rotation shaft 43 is used for providing a mounting base for the first gear 41 on one hand and also for driving the first gear 41 to rotate on the other hand, and the second gear 42 is used for meshing with the first gear 41 so as to rotate along with the first gear 41. The first rotation shaft 3123 is engaged with the eccentric ring groove 421 to enable the rotary blade 31 to be continuously rotated back and forth while following the continuous rotation of the second gear 42, so as to adjust the positions of the two rotary blades 31.

Referring again to fig. 3, in the present embodiment, the first rotating shaft 3123 is connected to one rotating plate 312 located at the outermost side. The second gear 42 is located between the rotary blade 31 and the inner wall of the casing 1, which enables the air outlet device to be compact, and meanwhile, the interference between the second gear 42 and the rotary blade 31 can be avoided.

Illustratively, in order to improve the rotational stability of each of the rotating blades 31, there are two first gears 41, and the two first gears 41 are respectively connected to the rotating shaft 43 at intervals in the axial direction of the rotating shaft 43 and are both located in the space defined by the two fixed arc plates 211 and the two intermediate plates 212. The number of the second gears 42 is two, the two second gears 42 are respectively located at two ends of the rotating blade 31 along the length direction thereof, two outermost rotating plates 312 of the plurality of rotating plates 312 are respectively inserted into the eccentric ring grooves 421 of the two second gears 42, and each second gear 42 is respectively meshed with the corresponding first gear 41.

In this embodiment, in order to facilitate the installation of the second gear 42 on the inner wall of the housing 1, a side of the second gear 42 facing the inner wall of the housing 1 has a protruding shaft 422, and the protruding shaft 422 is rotatably inserted into the inner wall of the housing 1.

Illustratively, the second gear 42 is a unitary structure, which can improve machining efficiency.

Illustratively, two first gears 41 are interference-fitted on the rotating shaft 43, which can improve the stability of the connection between the first gears 41 and the rotating shaft 43. The first gear 41 and the second gear 42 are directly meshed, so that the second gear 42 is in close contact with the first gear 41, and the occupied space of the transmission assembly 4 is reduced.

Referring again to fig. 1, optionally, the air outlet device further includes a driving motor 6. The driving motor 6 is located at one side of the housing 1, and an output shaft of the driving motor 6 is inserted into a side wall of the housing 1 and is in transmission connection with one end of the rotating shaft 43 to drive the rotating shaft 43 to rotate.

Referring to fig. 2 again, optionally, the air outlet device further includes a positioning structure 5, where the positioning structure 5 includes a plurality of positioning plates 51, the plurality of positioning plates 51 are respectively connected to the inner wall of the casing 1, and the plurality of positioning plates 51 are located at two sides of the fixed air guiding structure 2, and the plurality of positioning plates 51 clamp the fixed air guiding structure 2 in the casing 1.

The positioning plate 51 is used for clamping the fixed air guiding structure 2 in the housing 1, so that the fixed air guiding structure 2 cannot move or rotate.

Exemplarily, the number of the positioning plates 51 is 8, and the positioning plates 51 are respectively welded on the inner wall of the housing 1, wherein two positioning plates 51 are respectively located at two sides of the same end of the two inclined plates 213, the other two positioning plates 51 are respectively located at two sides of the other end of the two inclined plates 213, the other two positioning plates 51 are located at two sides of the same end of the two fixed arc-shaped plates 211, and the last two positioning plates 51 are located at two sides of the other end of the two fixed arc-shaped plates 211.

Referring again to fig. 1, optionally, the housing 1 includes a top plate 11, a bottom plate 12, two side plates 13. The top plate 11 and the bottom plate 12 are oppositely arranged, and the two side plates 13 are oppositely arranged and respectively connected between the top plate 11 and the bottom plate 12. In the direction from the air inlet 101 to the air outlet 102, the two side plates 13 each have a protrusion 131 protruding from the top plate 11 and the bottom plate 12, the orthographic projections of the second air guiding surfaces 202 on the two side plates 13 are respectively located on the corresponding protrusions 131, and the orthographic projections of the third air guiding surfaces 301 on the two side plates 13 are located on the protrusions 131.

The top plate 11, the bottom plate 12 and the two side plates 13 can be simply spliced to form the shell 1 with the two ends respectively provided with the air inlet 101 and the air outlet 102, and an installation foundation can be provided for other components. The protrusion 131 is formed such that the top plate 11 and the bottom plate 12 do not restrict the wind-out direction.

Illustratively, the top plate 11 and the bottom plate 12 are identical in structure and are each a rectangular plate-shaped structural member. The side plates 13 have a trapezoidal plate structure, the protruding portion 131 has a triangle shape, and the vertex angle (i.e., 2 β) of the triangle is the same as the angle α, so that the housing 1 has a small shape.

In this embodiment, in the direction from the air outlet 102 to the air inlet 101, the distance M between the outer edges of the top plate 11 and the bottom plate 12 and the fixed arc-shaped plate 211 is 6mm to 8mm, so that the airflow area is not affected when the rotating blade 31 rotates.

The working mode of the air outlet device provided by the embodiment of the disclosure is briefly described below with reference to fig. 5 to 7:

first, the driving motor 6 is started, the rotating shaft 43 is driven by the driving motor 6 to rotate, the first gear 41 fixed on the rotating shaft 43 rotates along with the rotating shaft, the second gear 42 rotates along with the first gear 41, and when the second gear 42 rotates, the first rotating shaft 3123 on the two rotating blades 31 is turned over in cooperation with the eccentric ring groove 421.

Fig. 5 is a first usage state diagram of the air outlet device provided by the embodiment of the disclosure, referring to fig. 5, when the position of the second gear 42 is such that one of the rotary blades 31 is in the first position and the other rotary blade 31 is in the second position, at this time, the air flow is divided into two air flows, i.e. an upper air flow and a lower air flow, by the two upper fixed blades 21 and the two lower fixed blades 21, and the lower air flow passes through one fixed blade 21 and one second rotary blade 31, because the second air guiding surface 202 and the third air guiding surface 301 are discontinuous, the air flow flows out along the third air guiding surface 301 in the horizontal direction, when the upper air flow passes through the other fixed blade 21 and the other rotating blade 31, due to the continuous surface, the coanda effect occurs, the air flow is attached to the first air guiding surface 201, the third air guiding surface 301 and the second air guiding surface 202 to flow, the air flow is tilted downwards at the outlet and is combined with the lower air flow to form an air flow which is blown downwards in an inclined mode.

Fig. 6 is a second usage state diagram of the air outlet device provided in the embodiment of the present disclosure, and with reference to fig. 6, when the second gear 42 starts to rotate by about 45 °, the rotation angles of the two rotating blades 31 are the same, at this time, the upper air flow and the lower air flow both point to the horizontal direction, and the final air flow outflow direction is horizontal.

Fig. 7 is a third usage state diagram of the air outlet device provided in the embodiment of the present disclosure, and with reference to fig. 7, when the second gear 42 continues to rotate by about 45 °, one of the rotating blades 31 is in the second position, and the other rotating blade is in the first position, a coanda effect is generated, the air flow is guided to blow upwards, and the air flows at the outlet are merged to form an air flow blowing obliquely upwards.

So, when driving motor 6 is when the stable rotation of fixed rotational speed, the coanda effect that appears from top to bottom in turn makes the air current point to from initial level, becomes upwards, becomes the level again, then downwards, so circulation has realized the directional periodic up-down regulation of air current and has swept the wind in succession promptly, has satisfied passenger's air conditioner travelling comfort requirement.

When the passenger needs to fix the air flow direction in a certain direction, the driving motor 6 is interrupted by pressing a key when the air flow direction is appropriate. The rotation angle and the air flow direction can be directly specified by one key through a built-in memory mode of the driving motor 6. Meanwhile, the driving motor 6 is also provided with different gears corresponding to different rotating speeds, so that the function of adjusting the wind sweeping frequency is achieved.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims (10)

1. The air outlet device of the automobile air conditioner is characterized by comprising a shell (1), a fixed air guide structure (2) and a rotary air guide structure (3);

a cavity (10) is arranged in the shell (1), and an air inlet (101) and an air outlet (102) are respectively arranged on two opposite sides of the shell (1);

the fixed air guide structure (2) is fixed in the cavity (10), the fixed air guide structure (2) is provided with a first air guide surface (201) and a second air guide surface (202), the first air guide surface (201) and the second air guide surface (202) are opposite to the inner wall of the shell (1), and the first air guide surface (201) and the second air guide surface (202) are arranged at intervals in the direction from the air inlet (101) to the air outlet (102);

the rotary air guiding structure (3) is movably connected in the cavity (10), the rotary air guiding structure (3) is provided with a third air guiding surface (301), the rotary air guiding structure (3) is configured to rotate between a first position and a second position,

when the rotary air guiding structure (3) is located at the first position, the third air guiding surface (301) is located between the first air guiding surface (201) and the second air guiding surface (202), and the first air guiding surface (201), the second air guiding surface (202) and the third air guiding surface (301) are in smooth transition, so that the air flow entering from the air inlet (101) flows out of the air outlet (102) along the first air guiding surface (201), the third air guiding surface (301) and the second air guiding surface (202),

when the rotary air guiding structure (3) is located at the second position, an included angle is formed between the third air guiding surface (301) and the extending surface of the second air guiding surface (202), so that the air flow entering from the air inlet (101) flows out from the air outlet (102) along the first air guiding surface (201) and the third air guiding surface (301).

2. The air outlet device of claim 1, wherein the fixed air guiding structure (2) comprises two fixed blades (21), the two fixed blades (21) are symmetrically arranged about a first plane (a), the length directions of the two fixed blades (21) are parallel to the first plane (a), the two fixed blades (21) respectively have one first air guiding surface (201) and one second air guiding surface (202), the minimum distance between the first air guiding surface (201) and the first plane (a) is gradually increased from 0 in the direction from the air inlet (101) to the air outlet (102), and the minimum distance between the second air guiding surface (202) and the first plane (a) is gradually decreased to 0;

the rotary air guiding structure (3) comprises two rotary blades (31), the two rotary blades (31) are symmetrically arranged relative to the first plane (a), the two rotary blades (31) correspond to the two fixed blades (21) one by one, and the two rotary blades (31) are respectively provided with a third air guiding surface (301).

3. The air outlet device of claim 2, wherein, in a direction from the air inlet (101) to the air outlet (102), each of the fixed blades (21) comprises a fixed arc-shaped plate (211), an intermediate plate (212) and an inclined plate (213);

two opposite side edges of the middle plate (212) are respectively connected with one side edge of the fixed arc-shaped plate (211) and one side edge of the inclined plate (213), the first air guide surface (201) is an arc-shaped outer surface of the fixed arc-shaped plate (211), and the second air guide surface (202) is a plate surface of the inclined plate (213);

the middle plate (212) is bent to define a containing groove (2121), and the containing groove (2121) is communicated with the cavity (10);

the rotating blades (31) are positioned in the corresponding accommodating grooves (2121), and the rotating blades (31) are rotatably connected with the middle plate (212).

4. The air outlet device of claim 1, wherein the included angle between the two second air guiding surfaces (202) is 30-60 °.

5. The air outlet device of claim 3, wherein the rotating blade (31) comprises a rotating arc plate (311) and a plurality of rotating plates (312);

the rotating arc-shaped plate (311) is provided with an outer arc surface and an inner arc surface which are opposite, the outer arc surface is opposite to the inner wall of the cavity (10), and the outer arc surface is the third air guide surface (301);

in the length direction of the rotating blade (31), the plurality of rotating plates (312) are connected to the intrados at intervals, and the plurality of rotating plates (312) are all rotatably connected to the middle plate (212).

6. Air outlet device according to claim 5, characterized in that the arc of the junction of the fixed arc (211) and the rotating arc (311) is tangent to a second plane (b) parallel to the first plane (a),

when the rotary air guide structure (3) is located at the first position, the inclined plate (213) is butted with the rotating arc-shaped plate (311), and the butted part of the inclined plate (213) and the rotating arc-shaped plate (311) is tangent.

7. The air outlet device of claim 5, further comprising a transmission assembly (4), wherein the transmission assembly (4) is located in the cavity (10), and the transmission assembly (4) comprises a rotating shaft (43), a first gear (41) and a second gear (42);

two ends of the rotating shaft (43) are rotatably connected to the inner wall of the shell (1), and the axial direction of the rotating shaft (43) is the same as the length direction of the rotating blade (31);

the first gear (41) is connected to the rotating shaft (43);

the second gear (42) is rotatably connected with the inner wall of the shell (1), the second gear (42) is meshed with the first gear (41), and the second gear (42) is provided with an eccentric ring groove (421);

one rotating plate (312) of the plurality of rotating plates (312) has a first rotating shaft (3123), and the first rotating shaft (3123) is rotatably inserted into the corresponding eccentric ring groove (421).

8. The air outlet device of claim 7, wherein the number of the first gears (41) is two, and the two first gears (41) are respectively connected to the rotating shaft (43) at intervals along the axial direction of the rotating shaft (43) and are both positioned in a space defined by the two fixed arc plates (211) and the two middle plates (212);

the number of the second gears (42) is two, the two second gears (42) are respectively located at two ends of the rotating blade (31) in the length direction, two rotating plates (312) located at the outermost sides of the rotating plates (312) are respectively inserted into two eccentric ring grooves (421) of the second gears (42), and the two second gears (42) are respectively meshed with the two first gears (41).

9. The wind outlet device of any one of claims 1 to 8, characterized in that the wind outlet device further comprises a positioning structure (5);

the positioning structure (5) comprises a plurality of positioning plates (51), the positioning plates (51) are respectively connected to the inner wall of the shell (1), the positioning plates (51) are located on two sides of the fixed air guide structure (2), and the fixed air guide structure (2) is clamped in the shell (1) through the positioning plates (51).

10. The air outlet device of any one of claims 1 to 8, wherein the housing (1) comprises a top plate (11), a bottom plate (12) and two side plates (13);

the top plate (11) and the bottom plate (12) are oppositely arranged, and the two side plates (13) are oppositely arranged and respectively connected between the top plate (11) and the bottom plate (12);

in the direction from the air inlet (101) to the air outlet (102), the two side plates (13) are respectively provided with a protruding part (131) protruding out of the top plate (11) and the bottom plate (12), orthographic projections of the second air guide surfaces (202) on the two side plates (13) are respectively positioned on the corresponding protruding parts (131), and orthographic projection parts of the third air guide surfaces (301) on the two side plates (13) are positioned on the protruding parts (131).

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