ventilation system

Abstract

The present application provides a ventilation device, comprising: a shell and a guide device, the shell having an airflow inlet and an airflow outlet, the guide device comprising a pair of plate assembly guide elements. Each plate assembly in the pair of plate assemblies is configured to be retractable, each plate assembly in the pair of plate assemblies has a movable end and a fixed end, the fixed ends are pivotally connected to the shell and are respectively located on both sides of the airflow inlet, the fixed ends of the pair of plate assemblies form a guide inlet, and the guide inlet can receive the airflow from the airflow inlet; the inlet end of the guide element is pivotally connected to the movable end of each plate assembly in the pair of plate assemblies, the outlet end of the guide element forms a guide outlet, the airflow in the guide area can enter the airflow outlet from the guide outlet, the guide element is configured to be rotatable around an axis relative to the shell, so that the guide outlet moves relative to the airflow outlet, thereby adjusting the direction of the airflow flowing out of the guide outlet. The ventilation device provided by the present application has low resistance.

Description

Technical Field

[0001] The present application relates to a ventilation device, in particular to a ventilation device used at an air outlet of an air conditioner of a vehicle. Background Art

[0002] Air conditioning is used in vehicles to regulate the interior temperature. The air conditioner is connected to a ventilation system mounted on the vehicle's interior panels, which delivers conditioned air into the vehicle interior. The ventilation system is equipped with a guide device to direct the airflow. When necessary, the guide device can be moved to adjust the airflow, ensuring that the conditioned air is quickly and evenly distributed throughout the vehicle. Summary of the Invention

[0003] The present application provides a ventilation device, comprising:

[0004] a housing having an airflow inlet and an airflow outlet, the airflow inlet being configured to receive conditioned air, the airflow outlet delivering the conditioned air to an interior of the vehicle;

[0005] A flow guiding device is arranged in the housing, wherein the inner side of the flow guiding device defines a flow guiding area, and the flow guiding area has a flow guiding inlet and a flow guiding outlet.

[0006] The flow guiding device comprises:

[0007] a pair of plate assemblies, each of the pair of plate assemblies being configured to be retractable, each of the pair of plate assemblies having a movable end and a fixed end, wherein the fixed ends are pivotally connected to the housing and are respectively located on either side of the airflow inlet, the fixed ends of the pair of plate assemblies defining the guide inlet, the guide inlet being capable of receiving airflow from the airflow inlet;

[0008] A flow guide element, wherein the inlet end of the flow guide element is pivotally connected to the movable end of each plate assembly in the pair of plate assemblies, the outlet end of the flow guide element forms the flow guide outlet, the airflow in the flow guide area can enter the airflow outlet from the flow guide outlet, and the flow guide element is configured to be rotatable relative to the shell around the axis of the flow guide element shaft, so that the flow guide outlet moves relative to the airflow outlet, thereby adjusting the direction of the airflow flowing out of the guide outlet.

[0009] According to the ventilation device described above, the flow guide element includes an upper flow guide element portion, a lower flow guide element portion, and a pair of flow guide element side portions. Each of the pair of flow guide element side portions is pivotally connected to a movable end of an upper plate assembly in the pair of plate assemblies near the upper flow guide element portion and near the inlet end, and is pivotally connected to a movable end of a lower plate assembly in the pair of plate assemblies near the lower flow guide element portion and near the inlet end.

[0010] According to the ventilation device described above, the guide element is narrowed from the inlet end to the outlet end, so that the height of the guide outlet is smaller than the distance between the respective movable ends of the pair of plate assemblies.

[0011] According to the ventilation device described above, the air flow outlet is in an elongated strip shape.

[0012] According to the ventilation device described above, the upper portion of the air guide element and the lower portion of the air guide element respectively include arc segments protruding outward.

[0013] According to the ventilation device described above, the air guide element includes a pair of protrusions formed by protruding outward from a pair of air guide element side portions respectively, and the pair of protrusions form an air guide element axis, and the air guide element is connected to the shell through the air guide element axis.

[0014] According to the ventilation device described above, the axis of the air guide element is close to the air flow outlet.

[0015] According to the above-mentioned ventilation device, the ventilation device further comprises a driving device, and the driving device is used to drive the air guide element to rotate.

[0016] According to the ventilation device described above, each of the pair of plate assemblies includes an upper plate and a lower plate, one of the upper plate and the lower plate is provided with a slide groove, and the other can be movably inserted into the slide groove, so that the upper plate and the lower plate can slide relative to each other, so that each of the pair of plate assemblies can be extended and retracted.

[0017] According to the ventilation device described above, the height of the air guide inlet is greater than the height of the air flow inlet.

[0018] The ventilation device provided in the present application is suitable for narrow and long air outlets and has low wind resistance. The ventilation device in the present application does not have blades at the air outlet, and has a neat and beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A is a perspective view of a ventilation device according to an embodiment of the present application;

[0020] Figure 1B yes Figure 1A Exploded view of the central ventilation device;

[0021] Figure 2A yes Figure 1B A perspective view of the middle shell;

[0022] Figure 2B yes Figure 2A Exploded view of the middle shell;

[0023] Figure 2C yes Figure 2A a cross-sectional view of the middle shell;

[0024] Figure 3 yes Figure 1B Exploded view of the center guide device;

[0025] Figure 4A yes Figure 3 A perspective view of the middle flow guide element;

[0026] Figure 4B yes Figure 4A Cross-sectional view of the middle flow guide element;

[0027] Figure 5A yes Figure 3 a perspective view of the upper and middle plate assembly;

[0028] Figure 5B yes Figure 5A Exploded view of the upper center plate assembly;

[0029] Figure 6 yes Figure 3 a perspective view of the middle and lower plate assembly;

[0030] Figure 7 yes Figure 3 A perspective view of the middle gear set;

[0031] Figure 8A is a cross-sectional view of the ventilation device, showing a state in which the air guide element is located at a first position;

[0032] Figure 8B is another cross-sectional view of the ventilation device, showing the configuration when the flow guide element is in the middle position;

[0033] Figure 8C It is another cross-sectional view of the ventilation device, showing the state when the air guide element is in the second position. DETAILED DESCRIPTION

[0034] Various specific embodiments of the present application will be described below with reference to the accompanying drawings, which form a part of this specification. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," and "right" are used in this application to describe various example structural parts and elements of the present application, these terms are used herein for convenience of description only and are determined based on the example orientations shown in the accompanying drawings. Because the embodiments disclosed in this application can be arranged in different orientations, these directional terms are intended to be illustrative only and should not be construed as limiting.

[0035] Figure 1A This is a three-dimensional diagram of a ventilation device according to an embodiment of the present application. Figure 1B yes Figure 1A Exploded view of the ventilation device. Figure 1A As shown, with the coordinate axes as reference, the ventilation device 100 has a length direction extending along the x-axis, a height direction extending along the y-axis, and a depth direction extending along the z-axis. Figure 1A and Figure 1B As shown, the ventilation device 100 is installed inside a vehicle and is used to deliver air-conditioned air to the interior space of the vehicle. In the depth direction, the ventilation device 100 has a front end 132 and a rear end 131, wherein the rear end 131 is connected to the air outlet duct of the air conditioner, and the front end 132 is connected to the interior space of the vehicle. Therefore, the air-conditioned air enters the ventilation device from the rear end 131 of the ventilation device 100 and is then delivered to the interior of the vehicle through the front end 132 of the ventilation device 100. The ventilation device 100 includes a housing 102, a flow guide device 104, and a regulating device 105. The flow guide device 104 and the regulating device 105 are arranged in the housing 102, wherein the flow guide device 104 and the regulating device 105 are both capable of adjusting the direction of the airflow.

[0036] Figure 2A yes Figure 1B A perspective view of the middle housing 102, Figure 2B yes Figure 1B A perspective exploded view of the middle housing 102, Figure 2C yes Figure 2A Cross-section of the middle shell. Figure 2A The direction shown by the coordinate axis is the same as Figure 1A The directions shown by the coordinate axes are consistent, and the same housing 102 has a length direction extending along the x-axis, a height direction extending along the y-axis, and a depth direction extending along the z-axis. Figure 2A-2C As shown, the housing 102 has an air inlet 231 and an air outlet 232. The air inlet 231 is close to the rear end 131 of the ventilation device 100, and the air outlet 232 is close to the front end 132 of the ventilation device 100 (see FIG. Figure 1AThe housing 102 includes an upper housing 211, a lower housing 212, and a rear housing 213. The lower housing 212 includes a bottom 221 and a pair of side portions 222 and 223, wherein the pair of side portions 222 and 223 extend upward from both sides of the bottom 221 in the longitudinal direction. The pair of side portions 222 and 223 respectively have substantially circular side bodies 225 and 226, and side extensions 227 and 228 extending to one side from the side bodies 225 and 226, respectively. The bottom 221 includes a bottom arc section 235 and a bottom extension section 236 extending from one side of the bottom arc section 235. The upper housing 211 includes an upper housing arc section 215 and an upper housing extension section 216 extending from one side of the upper housing arc section 215. The upper shell 211 is connected to a pair of side portions of the lower shell 212. The longitudinal ends of the upper shell arc segment 215 are connected to the side bodies 225 and 226, respectively, while the longitudinal ends of the upper shell extension 216 are connected to the side extensions 228 and 227, respectively. The cross-sections of the upper shell arc segment 215 and the bottom arc segment 235 are generally arc-shaped, matching the shapes of the side bodies 225 and 226. The upper shell 211 and the lower shell 212 enclose a storage space 241, which includes a first region 242, which is generally cylindrical, and a second region 243, which is generally quadrangular in shape. The first region 242 is bounded by the upper shell arc segment 215, the bottom arc segment 235, and the side bodies 225 and 226. The second region 243 is bounded by the upper shell extension 216, the bottom extension 236, and the side extensions 228 and 227. The accommodation space 241 is used to accommodate the air guide device 104 and the adjustment device 105. A certain distance is provided between the depth-direction edge 219 of the upper shell arc segment 215 and the depth-direction edge 229 of the bottom arc segment 235. The upper shell arc segment 215, the bottom arc segment 235, and the side bodies 225 and 226 collectively form the airflow outlet 232. A certain distance is provided between the upper shell extension 216 and the bottom extension 236, thereby forming an opening 248 among the upper shell extension 216, the bottom extension 236, and the side extensions 228 and 227.

[0037] The rear housing 213 includes a rear housing body 245 and a connecting portion 246. The rear housing body 245 includes sidewalls 291 and a rear wall 292. In the depth direction, one end of the sidewall 291 forms an opening 295, and the other end is connected to the rear wall 292. The rear wall 292 is provided with an opening 293, and the connecting portion 246 extends outward from the edge of the opening 293, resulting in a generally hollow cylindrical shape. The distal end of the connecting portion 246 forms an air inlet 231, which communicates with the opening 295. The shape of the connecting portion 246 is designed to facilitate connection to the air outlet duct of the air conditioner. The rear housing body 245 matches the shape of the second section 243 and can be partially inserted into the second section 243. The outer side of the sidewall 291 contacts and seals with the inner sides of the upper housing extension 216, the bottom extension 236, and the side extensions 228 and 227. Air can enter the housing 102 from the air inlet 231 and then flow out from the air outlet 232. The second area 243 and the rear housing body 245 can accommodate the adjustment device 105, which adjusts the airflow in the horizontal direction.

[0038] A pair of guide element shaft mounting holes 281, a pair of upper plate assembly shaft mounting holes 283, and a pair of lower plate assembly shaft mounting holes 286 are respectively provided on the side bodies 225 and 226. The pair of guide element shaft mounting holes 281 are close to the air flow outlet 232 and are used to connect with the guide element 303 (see FIG. Figure 3 ) connection. A pair of upper plate assembly shaft mounting holes 283 are located near the upper housing extension 216, and a pair of lower plate assembly shaft mounting holes 286 are located near the bottom extension 236. The pair of upper plate assembly shaft mounting holes 283 and the pair of lower plate assembly shaft mounting holes 286 are used to connect with the plate assemblies 301 and 302 (see Figure 3 ) connection. The outer side of the side body 226 is provided with a plurality of support structures 260 for mounting the motor 305 and the gear set 306 (see Figure 3 ).

[0039] Figure 3 yes Figure 1B A perspective view of the flow guide device 104. Figure 3 As shown, the flow guide device 104 includes a flow guide element 303, an upper plate assembly 301, a lower plate assembly 302, a motor 305, and a gear set 306. The motor 305 and the gear set 306 together constitute a drive device for driving the flow guide element 303 to rotate. The upper plate assembly 301 and the lower plate assembly 302 are a pair of plate assemblies, each connected to the flow guide element 303. The upper plate assembly 301 and the lower plate assembly 302 have the same structure. The motor 305 drives the flow guide element 303 to move through the gear set 306.

[0040] Figure 4A yes Figure 3A perspective view of the middle flow guide element 303, Figure 4B yes Figure 4A A cross-sectional view of the middle flow guide element 303. Figure 4A and Figure 4B As shown, the flow guide element 303 includes an upper flow guide element portion 411, a lower flow guide element portion 412, and a pair of flow guide element side portions 413 and 414. The flow guide element side portions 413 and 414 are symmetrical in structure, and the flow guide element upper portion 411 and the flow guide element lower portion 412 are symmetrical in structure. The flow guide element side portion 413 is generally plate-shaped and has an upper side 421, a lower side 422, a front side 423, and a rear side 424. Similarly, the flow guide element side portion 414 has an upper side 431, a lower side 432, a front side 433, and a rear side 434. The two ends of the upper part 411 of the guide element in the length direction are respectively connected to the upper side 421 of the guide element side 413 and the upper side 431 of the guide element side 414, and the two ends of the lower part 412 of the guide element in the length direction are respectively connected to the lower side 422 of the guide element side 413 and the lower side 432 of the guide element side 414.

[0041] The flow guide element 303 has an inlet end 471 and an outlet end 472. The inlet end 471 is located near the rear side 424 of the flow guide element side portion 413 and the rear side 434 of the flow guide element side portion 414, while the outlet end 472 is located near the front side 423 of the flow guide element side portion 413 and the front side 433 of the flow guide element side portion 414. The flow guide element upper portion 411, the flow guide element lower portion 412, the front side 423 of the flow guide element side portion 413, and the front side 433 of the flow guide element side portion 414 form a flow guide element outlet 442. The front edges of the upper and lower flow guide element portions 411 and 412 are substantially flush with the front edges of the front sides 423 and 433 of the flow guide element side portion 413 and 414, respectively. The upper portion 411, the lower portion 412, the rear side 424 of the side portion 413, and the rear side 434 of the side portion 414 define a flow guide inlet 441. The edges of the rear side 424, 434, and the rear side 434 of the side portion 413 and 414 protrude beyond the rear edges of the upper portion 411 and the lower portion 412, forming edges 461 and 462. The edges 461 and 462 are respectively defined with a pair of shaft mounting holes 465 near the upper portion 411 and a pair of shaft mounting holes 466 near the lower portion 412.

[0042] The upper portion 411 of the flow guiding element includes an arc segment 491 and an extension segment 496 , and the lower portion 412 of the flow guiding element includes an arc segment 492 and an extension segment 497 , wherein both the arc segment 491 and the arc segment 492 are convex outward.

[0043] The upper portion 411, lower portion 412, side portion 413, side portion 414, inlet 441, and outlet 442 of the flow guide element define a flow guide space 481. This space includes an inlet portion 483 and an outlet portion 484. In a depthwise cross-section, the height of the inlet portion 483 decreases from the inlet 441 until it reaches the same height as the outlet 442. The outlet portion 484 is the same height as the outlet 442. Consequently, airflow entering the flow guide element 303 from the inlet 441 is first concentrated and accelerated in the inlet portion 483 before being directed by the outlet portion 484 and finally exiting the outlet 442. The inlet portion 483 is defined by the arc segment 491 of the upper portion 411 and the arc segment 492 of the lower portion 412, resulting in an outwardly convex arc shape on both the upper and lower sides of the inlet portion 483. The outlet portion 484 is defined by an extension 496 of the upper portion 411 of the flow guide element and an extension 497 of the lower portion 412 of the flow guide element. The distance between the upper and lower sides of the outlet portion 484 is equal, so that the outlet portion 484 can guide the airflow to flow out in a direction generally parallel to the extensions 496 and 497. The inlet portion 483 can converge and accelerate the airflow, and the shape of the inlet portion 483 helps reduce the resistance of the airflow entering the flow guide space 481. The outlet portion 484 is used to smoothly deliver the airflow.

[0044] A pair of protrusions 469 are respectively provided on the outer sides of the guide element side portion 413 and the guide element side portion 414. The pair of protrusions 469 can respectively pass through a pair of guide element shaft mounting holes 281 (see FIG. Figure 2B ) and can rotate in a pair of guide element shaft mounting holes 281 to form a guide element shaft.

[0045] Figure 5A is a perspective view of the upper plate assembly 301 in this application, Figure 5B yes Figure 5A 3D exploded view of the middle and upper plate assembly 301. Figure 5B As shown, the upper plate assembly 301 includes an upper plate 501 and a lower plate 502. The upper plate 501 and the lower plate 502 can slide relative to each other, so that the upper plate assembly 301 can be extended and retracted. The upper plate 501 has a pair of bent portions 521 and 522, which extend downward from both ends in the length direction of the upper plate assembly 301 by a certain distance and then bend inward. The pair of bent portions 521 and 522 form sliding grooves 525 and 526 with the lower surface of the upper plate 501 respectively. The lower plate 502 can be inserted into the sliding grooves 525 and 526, so that the lower plate 502 can slide relative to the upper plate 501. The sliding grooves 525 and 526 are used to clamp the edges of the lower plate 502 in the length direction, so that when the upper plate 501 and the lower plate 502 slide relative to each other, the two are not easy to fall off.

[0046] The upper plate assembly 301 has a fixed end 512 and a movable end 511 that are arranged opposite to each other. The fixed end 512 is formed by one side of the lower plate 502, and the movable end 511 is formed by one side of the upper plate 501. The fixed end 512 includes a pair of protrusions 519 that protrude outward from both ends of the length direction of the lower plate 502. The pair of protrusions 519 can be installed in a pair of upper plate assembly shaft mounting holes 283 (see FIG. Figure 2B ) on the upper plate assembly 301 so that the upper plate assembly 301 can pivot relative to the housing 102. The movable end 511 includes a pair of protrusions 518 formed by protruding outward at both ends in the length direction of the upper plate 501. The pair of protrusions 518 can be installed in the pair of shaft mounting holes 465 (see Figure 4A ) so that the upper plate assembly 301 can pivot relative to the guide element 303.

[0047] Figure 6 yes Figure 3 A three-dimensional view of the middle lower plate assembly 302, the structure of the lower plate assembly 301 is similar to that of the upper plate assembly 301. The lower plate assembly 302 includes an upper plate 601 and a lower plate 602, and the upper plate 601 and the lower plate 602 can slide relative to each other so that the lower plate assembly 302 can be extended and retracted. Unlike the upper plate assembly 301, a pair of bending portions 621 and 622 are provided on the lower plate 602. The other structures of the lower plate assembly 302 are the same as those of the upper plate assembly 301 and will not be described in detail here. The lower plate assembly 302 includes a fixed end 612 and a movable end 611. The movable end 611 includes a pair of protrusions 618, and the pair of protrusions 618 can be installed in the shaft mounting hole 466 (see Figure 4A ) on the lower plate assembly 302 so that the lower plate assembly 302 can pivot relative to the guide element 303. The fixed end 612 includes a pair of protrusions 619, which can be installed in the lower plate assembly shaft mounting hole 286 (see Figure 2B ) so that the lower plate assembly 302 can pivot relative to the housing 102.

[0048] Figure 7 yes Figure 3 A perspective view of the gear set 306 is shown in FIG. Figure 7 As shown, the gear set 306 includes a first gear 701 and a second gear 702. The first gear 701 is connected to the guide element shaft mounting hole 281 (see FIG. Figure 2B ) of the guide element 303 (see Figure 4A) is fixedly connected. For example, the portion of the protrusion 469 exposed outside the housing 102 is prismatic, and the first gear 701 has a prismatic hole 705 that matches the shape of the protrusion 469, so that the protrusion 469 can be inserted into the prismatic hole 705. Therefore, when the first gear 701 rotates, it can drive the flow guide element 303 to rotate around the axis of the flow guide element shaft. In this embodiment, the protrusion 469 forms the flow guide element shaft. The second gear 702 is connected to the motor 305 (see Figure 3 ) is fixedly connected and meshes with the first gear 701. When the motor 305 drives the second gear 702 to rotate, the second gear 702 drives the first gear 701 to rotate, thereby driving the guide element 303 to rotate.

[0049] Figure 8A FIG. 3 is a cross-sectional view of the ventilation device, showing a state where the air guide element 303 is located at the first position. Figure 8B FIG. 3 is another cross-sectional view of the ventilation device, showing the state when the air guide element 303 is in the middle position. Figure 8C FIG. 3 is another cross-sectional view of the ventilation device, showing the state where the air guide element 303 is in the second position.

[0050] like Figure 8AAs shown, the flow guide device 104 is disposed in the housing 102. The fixed end 512 of the upper plate assembly 301 is connected to the housing 102, and the movable end 511 is connected to the inlet end 471 of the flow guide element 303. The fixed end 612 of the lower plate assembly 302 is connected to the housing 102, and the movable end 611 is connected to the inlet end 471 of the flow guide element 303. The upper plate assembly 301, the lower plate assembly 302, and the flow guide element 303 form a flow guide area 805. The flow guide area 805 has a flow guide inlet 811 and a flow guide outlet 812. The flow guide inlet 811 is defined by the fixed ends 512 and 612 of the pair of plate assemblies 301 and 302, respectively, while the flow guide outlet 812 is defined by the flow guide element outlet 442. The airflow inlet 231, the guide inlet 811, the guide outlet 812, and the airflow outlet 232 are all interconnected. Air-conditioned air passes through the airflow inlet 231, the guide inlet 811, and the guide outlet 812 in sequence and is delivered to the vehicle interior from the airflow outlet 232. The guide element 303 is located within the housing, with the guide outlet 812 adjacent to and spaced a certain distance from the airflow outlet 232. The height of the guide outlet 812 is less than the height of the airflow outlet 232, and the length of the guide outlet 812 is also less than the length of the airflow outlet 232, allowing airflow from the guide outlet 812 to flow smoothly out of the airflow outlet 232. A gap exists between the upper portion 411 and the lower portion 412 of the guide element and the inner wall of the housing 102, thereby providing space for the movement of the guide element 303. This allows the guide element 303 to rotate within the housing 102 without being blocked by the inner wall of the housing 102. The distances between the upper portion 411 and the lower portion 412 of the guide element and the inner wall of the housing 102 are small, which prevents excessive airflow from entering the gap between the guide element 303 and the housing 102 while ensuring that the guide element 303 can rotate.

[0051] exist Figure 8A In the position shown, the air guide element 303 rotates around the axis of the air guide element shaft to reach its final clockwise position, i.e., the first position. In the first position, the air guide outlet 812 is tilted upward, and the plane of the air guide outlet 812 forms an acute angle with the airflow outlet 232. The distance between the upper portion of the air guide outlet 812 and the airflow outlet 232 is greater than the distance between the lower portion of the air guide outlet 812 and the airflow outlet 232, thereby causing the airflow from the ventilation device 100 to flow upward at an angle. In the first position, the cross-sectional length of the upper plate assembly 301 is the shortest, and the cross-sectional length of the lower plate assembly 302 is the longest.

[0052] exist Figure 8BIn the illustrated position, the air guide element 303 is in a neutral position. In this neutral position, the plane of the air guide outlet 812 is parallel to the plane of the airflow outlet 232. The distance between the upper portion of the air guide outlet 812 and the airflow outlet 232 is equal to the distance between the lower portion of the air guide outlet 812 and the airflow outlet 232, thereby ensuring that the airflow from the ventilation device 100 flows horizontally. At this point, the cross-sectional lengths of the upper plate assembly 301 and the lower plate assembly 302 are both neutral.

[0053] exist Figure 8C In the position shown, the air guide element 303 reaches its final counterclockwise position, i.e., the second position. The air guide outlet 812 is tilted downward, forming an acute angle between the plane of the air guide outlet 812 and the air outlet 232. The distance between the upper portion of the air guide outlet 812 and the air outlet 232 is less than the distance between the lower portion of the air guide outlet 812 and the air outlet 232, thereby causing the airflow from the ventilation device 100 to flow downward at an angle. At this point, the upper plate assembly 301 has the longest cross-sectional length, while the lower plate assembly 302 has the shortest cross-sectional length.

[0054] The diversion device Figures 8A-8C The guide device can be moved between the positions shown in the figure to adjust the vertical direction of the airflow. Figure 8A The first position shown moves to Figure 8C During the second position shown, the upper plate assembly 301 is extended and the lower plate assembly 302 is shortened. Figure 8C The second position shown moves to Figure 8A During the first position shown, the upper plate assembly 301 is shortened and the lower plate assembly 302 is extended. During the movement of the flow guide device 104, the upper plate assembly 301 and the lower plate assembly 302 are respectively pivoted relative to the housing 102 and simultaneously pivoted relative to the flow guide element 303.

[0055] In the guide area 805 defined by the guide device 104, the airflow is guided by a pair of plate assemblies 301, 302 into the guide space 481 defined by the guide element 303, and the airflow is gathered in the guide space 481 and then flows out. The height of the inlet portion 483 of the guide space 481 gradually narrows along the flow direction of the airflow, so that the airflow can be gathered and accelerated. The inlet portion 483 includes an arc segment, which can reduce wind resistance when converging the airflow and save energy. The outlet portion 484 of the guide space 481 is equal in height and can guide the airflow to flow out smoothly. The position of the guide element 303 determines the direction of the airflow flowing out of the airflow outlet 232. During the movement of the guide device 104, the pair of plate assemblies 301, 302 are driven by the guide element 303 to pivot and extend, and the direction of the airflow changes when passing through the pair of plate assemblies 301, 302. However, the direction of the airflow flowing out of the airflow outlet 232 is determined by the position of the air guide element 303 , and the positions of the pair of plate assemblies 301 , 302 cannot determine the direction of the airflow flowing out of the airflow outlet 232 .

[0056] In the embodiment of the present application, the lengths of the pair of plate assemblies 301, 302 are substantially equal to or slightly less than the length of the inner side of the housing 102. The pair of plate assemblies 301, 302 are in contact with the inner walls of the pair of side portions 222 and 223 of the housing 102, or a small gap exists between the two, so that all or most of the airflow entering the space defined by the pair of plate assemblies 301, 302 enters the flow guide space 481.

[0057] After air conditioning, the air flow enters the interior of the housing 102 from the air inlet 231, enters the guide device 104 through the regulating device 105, and then flows out from the air outlet 232. The regulating device 105 has a plurality of blades, which can adjust the flow direction of the air flow in the horizontal direction by rotating the blades. The guide device 104 can adjust the flow direction of the air flow in the vertical direction by rotating the guide element 303. The regulating device 105 is close to the air inlet 231 and has a certain distance from the air outlet 232. The air outlet 232 and the guide outlet 812 are both slender strips with a long length and a small height. The regulating device 105 is an airflow direction regulating device with blades, and the guide device 104 is an airflow direction regulating device without blades.

[0058] Driven by the motor 305, the air guide element 303 can rotate between a first position and a second position. When the air guide element 303 reaches the first position or the second position, the motor 305 receives a signal to stop rotating. The air guide device 104 can adjust the direction of air flow in the vertical direction. From the user's perspective, viewed from the direction of the vehicle's interior panel, no blades are provided near the air outlet, making the air-conditioning outlet neat and beautiful. The air guide device 104 is suitable for long strip air outlets. The air guide element has an arc section, which, on the one hand, helps to reduce wind resistance and thus save energy; on the other hand, it can gather airflow, so that the airflow flowing out of the air guide device is more concentrated and has a faster flow rate.

[0059] Although only some features of the present application have been illustrated and described herein, various modifications and variations may be made by those skilled in the art. It should be understood that the appended claims are intended to cover all such modifications and variations that fall within the spirit and scope of the present application.

Claims

1. A ventilation device for delivering air conditioned air to the interior of a vehicle, characterized in that include: a housing having an airflow inlet and an airflow outlet, the airflow inlet being configured to receive conditioned air, the airflow outlet delivering the conditioned air to an interior of the vehicle; A flow guiding device is arranged in the housing, wherein the inner side of the flow guiding device defines a flow guiding area, and the flow guiding area has a flow guiding inlet and a flow guiding outlet. The flow guiding device comprises: a pair of plate assemblies, each of the pair of plate assemblies being configured to be retractable, each of the pair of plate assemblies having a movable end and a fixed end, wherein the fixed ends are pivotally connected to the housing and are respectively located on either side of the airflow inlet, the fixed ends of the pair of plate assemblies defining the guide inlet, the guide inlet being capable of receiving airflow from the airflow inlet; and A flow guide element, wherein the inlet end of the flow guide element is pivotally connected to the movable end of each plate assembly in the pair of plate assemblies, the outlet end of the flow guide element forms the flow guide outlet, the airflow in the flow guide area can enter the airflow outlet from the flow guide outlet, and the flow guide element is configured to be rotatable relative to the housing around the axis of the flow guide element shaft, so that the flow guide outlet moves relative to the airflow outlet, thereby adjusting the direction of the airflow flowing out of the flow guide outlet, Wherein, each of the pair of plate assemblies includes an upper plate and a lower plate, one of the upper plate and the lower plate is provided with a slide groove, and the other can be movably inserted into the slide groove, so that the upper plate and the lower plate can slide relative to each other, so that each of the pair of plate assemblies can be extended and retracted.

2. The ventilation device according to claim 1, characterized in that: The guide element includes an upper part of the guide element, a lower part of the guide element and a pair of side parts of the guide element, each of the pair of side parts of the guide element is respectively connected to the upper part of the guide element and the lower part of the guide element to enclose a guide space, and the two ends of the upper part of the guide element, the lower part of the guide element and the side part of the guide element are respectively close to the inlet end and the outlet end, each of the pair of side parts of the guide element is pivotally connected to the movable end of the upper plate assembly in the pair of plate assemblies near the upper part of the guide element and near the inlet end, and is pivotally connected to the movable end of the lower plate assembly in the pair of plate assemblies near the lower part of the guide element and near the inlet end.

3. The ventilation device according to claim 2, characterized in that: The flow guiding element narrows from the inlet end to the outlet end, so that the height of the flow guiding outlet is smaller than the distance between the movable ends of the pair of plate assemblies.

4. The ventilation device according to claim 1, wherein: The air flow outlet is in an elongated strip shape.

5. The ventilation device according to claim 2, characterized in that: The upper portion of the flow guiding element and the lower portion of the flow guiding element respectively include arc segments protruding outward.

6. The ventilation device according to claim 2, characterized in that: The flow guide element includes a pair of protrusions formed by protruding outward from the pair of flow guide element side portions respectively, and the pair of protrusions form the flow guide element axis. The flow guide element is connected to the housing through the flow guide element axis.

7. The ventilation device according to claim 1, characterized in that: The axis of the air guide element is close to the air flow outlet.

8. The ventilation device according to claim 1, characterized in that Also includes: A driving device is used to drive the guide element to rotate.

9. The ventilation device according to claim 1, characterized in that The ventilation device further comprises: The regulating device is close to the air flow inlet, and the regulating device includes a plurality of blades, which are configured to rotate to adjust the direction of the air flow flowing in from the air flow inlet in the horizontal direction and guide the air flow with the adjusted direction to the guide device.

10. The ventilation device according to claim 1, wherein: The height of the guide inlet is greater than the height of the air flow inlet.

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