Air blowing device

Abstract

This application discloses an air blowing device and a vehicle. The air blowing device includes a housing and a blade row. The housing includes an air intake and an air outlet. The blade row is installed inside the housing and extends along the length of the air outlet. The blade row includes a plurality of blade units connected in series with each other, and the plurality of blade units are adapted to rotate synchronously about the axis of the blade row, or at least some of the blade units rotate independently about the axis of the blade row relative to the remaining blade units. A user can control all of the blade units to rotate synchronously about the axis, or can control some of the blade units to rotate while the remaining blade units rotate with a delay. In this way, it is possible to control the air blowing of the air blowing device not only as a whole, but also by segment.

Description

[Technical Field]

[0001] This application relates to the field of automotive air conditioning components, and in particular to air blowing devices. 。 [Background technology]

[0002] Automobiles are generally equipped with air conditioning systems, which include air outlet devices mounted at multiple locations within the vehicle to blow air to multiple locations within the vehicle, thereby adjusting the temperature inside the vehicle. The air outlet device typically includes a housing with an elongated air outlet and an adjusting mechanism installed within the housing, which is used to control the air blowing direction.

[0003] In the prior art, the adjustment mechanism can only adjust the air outlet's air outlet's air outlet condition as a whole, and cannot adjust the air outlet's air outlet condition for each segment, which is disadvantageous in meeting the passengers' personalized needs for air outlet. Summary of the Invention [Means for solving the problem]

[0004] Original Vow teeth The present invention proposes an air blowing device, which includes a housing and a blade row, the housing including an air intake and an air outlet, the blade row disposed inside the housing and extending along the length of the air outlet, the blade row including a plurality of blade units connected in series with each other, and the plurality of blade units are adapted to rotate synchronously about an axis of the blade row, or at least some of the blade units are adapted to rotate independently about the axis of the blade row with respect to the remaining blade units.

[0005] In one embodiment, each blade unit includes a rotation axis and at least one blade disposed at an angle relative to the rotation axis.

[0006] In one embodiment, the air blowing device further includes a first damper, the first damper being installed between the blade unit at the end of the blade row and the housing, and the friction force between the first damper and the housing being greater than the transmission resistance between any two adjacent blade units.

[0007] In one embodiment, the blade row axis includes straight and / or curved segments.

[0008] In the straight line segment, the rotation axes of the blade units are connected in series and are arranged on the same line.

[0009] In the curved line segment, the rotation axes of at least two blade units are connected to each other by a universal joint.

[0010] In one embodiment, the air blowing device further includes a plurality of second dampers, each of which is installed between the rotation axes of two adjacent blade units, so that the plurality of blade units are suitable for rotating synchronously.

[0011] In one embodiment, the air blowing device further includes a plurality of clutch structures, each of which is connected between two adjacent blade units, and each of which is configured to have an engaged state and a disengaged state, such that when the clutch structure is in the engaged state, the upstream blade unit drives the adjacent downstream blade unit to rotate synchronously, and when the clutch structure is in the disengaged state, the upstream blade unit rotates independently of the adjacent downstream blade unit.

[0012] In one embodiment, each clutch structure includes a first interface surface, a second interface surface, a third interface surface associated with the first interface surface, and a fourth interface surface associated with the second interface surface, wherein in an engaged state, the first interface surface holds in contact with the third interface surface or the second interface surface holds in contact with the fourth interface surface, and in a disengaged state, the first interface surface separates from the third interface surface and the second interface surface separates from the fourth interface surface.

[0013] In one embodiment, the first and second joining surfaces are located on the rotation axis of one of two adjacent blade units, and the third and fourth joining surfaces are located on the rotation axis of the other of the two adjacent blade units.

[0014] In one embodiment, an axially extending pin shaft is provided at the end of the rotation shaft of one of two adjacent blade units, a boss is provided on the circumferential side wall of the pin shaft, and two radial surfaces of the boss form a first joining surface and a second joining surface, respectively; and a joining groove aligned with the pin shaft is provided at the end of the rotation shaft of the other of the two adjacent blade units, and a notch aligned with the boss is provided on the inner wall of the joining groove, and two radial surfaces of the notch form a third joining surface and a fourth joining surface, respectively.

[0015] In one embodiment, the central angle corresponding to the notch is greater than the central angle corresponding to the boss.

[0016] In one embodiment, a guide blade is provided at the air inlet of the housing, and the guide blade extends along the length of the air inlet and is adapted to swing along the width of the air inlet. and / or An air distribution plate is disposed in the housing between the air outlet and the blade array, the air distribution plate extending along the length of the air outlet and spaced apart from the housing.

[0017] In one embodiment, the housing is provided with a plurality of parallel air ducts, each of which has a blade row disposed therein.

[0018] In one embodiment, each blade unit includes a rotation axis and at least one blade disposed at an angle to the rotation axis. and the blade rows are configured to have one or more of a blade convergence state, a blade divergence state, and a blade forward flow direction state. The air blowing device is configured to include a first operating mode, and under the first operating mode, the plurality of blade units are divided into at least two groups, and the blade units of the same group are configured so that the blades are parallel to each other, and the blade units of two adjacent groups are configured so that the blades are not parallel to each other, so that the blade units of the two adjacent groups are suitable to provide an opposing airflow when in a blade convergence state, a backflow when in a blade divergence state, or a straight airflow when in a blade forward guide state.

[0019] In one embodiment, each blade unit includes a rotation axis and at least one blade disposed at an angle to the rotation axis. and the blade rows are configured to have one or more of a blade convergence state, a blade divergence state, and a blade forward flow direction state. The air blowing device is configured to include a second operating mode, and under the second operating mode, adjacent blade units are configured so that their blade normal directions are different, such that at least some of the plurality of blade units are suitable for providing one of a direct-blown airflow and an oblique-blown airflow, and at least some other of the plurality of blade units are suitable for providing the other of a direct-blown airflow and an oblique-blown airflow. In the blade convergence state, the oblique-blown airflow and the adjacent direct-blown airflow approach each other, and in the blade divergence state, the oblique-blown airflow and the adjacent direct-blown airflow move away from each other.

[0020] In one embodiment, under the second operating mode, the blade row includes a plurality of first blade unit groups providing a straight-blown airflow and a plurality of second blade unit groups providing an oblique-blown airflow, and the plurality of first blade unit groups and the plurality of second blade unit groups are alternately distributed along the axis of the blade row.

[0021] Compared with the prior art, the present invention has the following advantageous effects: The user can rotate all blade units synchronously around the axis, thereby controlling the air discharge of the air discharge device as a whole. The user can also control some of the blade units to rotate first and the remaining blade units to rotate later, thereby controlling the air discharge of the air discharge device by segment. In this way, the air discharge device of the present invention helps to meet the individualized needs of occupants regarding air discharge and also helps to improve occupant comfort.

[0022] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the exemplary embodiments and descriptions thereof are used to interpret the present application and do not constitute undue limitations on the present application, where [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic representation of a vehicle according to one embodiment of the present application; [Figure 2] 1 shows a schematic representation of the location of the air outlet device in a vehicle. [Figure 3] 1 is a schematic perspective view of an air blowing device according to a first embodiment. [Figure 4] 1 is a schematic exploded view of an air blowing device according to a first embodiment of the present invention; [Figure 5] In the first view, the structure of one driven blade unit is shown schematically. [Figure 6] 6 is a schematic view of the structure of the driven blade unit shown in FIG. 5 from a second perspective. [Figure 7] FIG. 6 is a side view of the follower blade unit shown in FIG. 5. [Figure 8] 6 is a view of the driven blade unit shown in FIG. 5 taken along the arrow A. [Figure 9] 6 is a view of the driven blade unit shown in FIG. 5 taken along the arrow B. [Figure 10A]10 is a schematic representation of a cutout in the second transition blade unit. [Figure 10B] 1 shows a schematic representation of the overall structure of the first transition blade unit. [Figure 11] 1 is a schematic diagram showing the internal structure of the air blowing device of the first embodiment. [Figure 12a] 2 is a schematic diagram illustrating the initial state of the air blowing device of the first embodiment. [Figure 12b] 12b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 12a; [Figure 12c] 12b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 12a. [Figure 13a] 1 is a schematic representation of the air blowing device of the first embodiment in a first mode of operation, in which the blade rows are in a blade convergence state; [Figure 13b] 13b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 13a; [Figure 13c] 13b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 13a. [Figure 14a] 1 is a schematic representation of the air blowing device of the first embodiment in a first operating mode, in which the blade row is in a blade forward flow direction state; [Figure 14b] 14b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 14a; [Figure 14c] 14b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 14a. [Figure 15a] 1 is a schematic representation of the air blowing device of the first embodiment in a first mode of operation, in which the blade rows are in a blade divergence state; [Figure 15b]15b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 15a; [Figure 15c] 15b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 15a. [Figure 16a] 5 is a schematic representation of a momentary rotation state of one of the blade rows in a second operation mode of the air blowing device of the first embodiment. [Figure 16b] 16b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 16a; [Figure 16c] 16b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 16a. [Figure 17a] 10A to 10C are schematic diagrams illustrating other different rotational instantaneous states of the blade row of the air blowing device in the second operation mode of the first embodiment; [Figure 17b] 17b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 17a; [Figure 17c] 17b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 17a. [Figure 18a] 10A to 10C are schematic diagrams illustrating other different rotational instantaneous states of the blade row of the air blowing device in the second operation mode of the first embodiment; [Figure 18b] 18b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 18a; [Figure 18c] 18b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 18a. [Figure 19a] 10A to 10C are schematic diagrams illustrating other different rotational instantaneous states of the blade row of the air blowing device in the second operation mode of the first embodiment; [Figure 19b]19b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 19a; [Figure 19c] 19b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 19a. [Figure 20a] 10A to 10C are schematic diagrams illustrating other different rotational instantaneous states of the blade row of the air blowing device in the second operation mode of the first embodiment; [Figure 20b] 20b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 20a; [Figure 20c] 20b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 20a. [Figure 21a] 10A to 10C are schematic diagrams illustrating other different rotational instantaneous states of the blade row of the air blowing device in the second operation mode of the first embodiment; [Figure 21b] 21b is a schematic representation of the clutch configuration between the first transition blade unit and the second transition blade unit in FIG. 21a; [Figure 21c] 21b is a schematic representation of the clutch structure between the driving blade unit and the driven blade unit in FIG. 21a. [Figure 22a] The operating principle of the air guide blades at the air intake is shown diagrammatically. [Figure 22b] The operating principle of the air guide blades at the air intake is shown diagrammatically. [Figure 22c] The operating principle of the air guide blades at the air intake is shown diagrammatically. [Figure 23] 1 is a schematic representation of an air blowing device of a second embodiment, in which two adjacent blade units are connected by a universal joint; [Figure 24] 1 is a schematic diagram showing an exploded view of a universal joint. [Figure 25] 1 is a schematic cross-sectional view of a universal joint. [Figure 26] 10 is a schematic diagram showing the moment of rotation of one of the blade rows of the air blowing device of the third embodiment. [Figure 27] 10 is a schematic representation of one blade unit of the air blowing device of the fourth embodiment, in which a second damper is installed on the rotation axis of the blade unit. [Figure 28] 10 is a schematic side view of an air blowing device according to a fourth embodiment. FIG. [Figure 29] 10 is a schematic representation of the moment of rotation of one of the blade rows of the air blowing device of the fourth embodiment. [Figure 30] 10 is a schematic cross-sectional view of an air blowing device according to a fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] In order to make the objectives, technical solutions and advantages of the present application clearer, the following provides a clear and complete description of the technical solutions of the present application in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, and do not represent all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without requiring creative work are also within the scope of protection of the present application.

[0025] It should be understood that, in this application, the term "lateral" refers to a direction generally perpendicular to the axial direction of the rod-shaped member, the term "upstream" refers to a direction closer to the motor in the power transmission relationship of the blade row, and the term "downstream" refers to a direction opposite the term "upstream," and the term "blade normal" refers to a direction generally perpendicular to the blade.

[0026] 1 and 2, a plurality of air outlet devices are installed on the dashboard 2 of the automobile 1. An air conditioning system (not shown) is also installed inside the automobile 1, and the air outlet devices are connected to the air conditioning system and adjust the air outlet direction of the air conditioning system to improve passenger comfort. The air outlet devices may also be installed at other locations inside the vehicle, for example, at pillars 21, and detailed description thereof will be omitted here.

[0027] In the following, the air blowing device will be described.

[0028] First Example

[0029] As shown in FIG. 3 , the air blowing device 3 of the first embodiment includes a housing 30 and a blade row 31 installed in the housing 30. An air inlet 301 (see FIGS. 22 a, 22 b, and 22 c) through which gas flows into the housing 30 and an air outlet 302 through which air flows out from the housing 30 are installed on the housing 30. The blade row 31 is formed by connecting multiple blade units 310 in series and extends along the length of the air outlet 302. Each blade unit 310 includes a rotation axis 311 and at least one blade 312 (see FIG. 5 ) installed at an angle relative to the rotation axis 311. The rotation axes 311 of the blade units 310 are connected in series in order to form the blade row 31. Therefore, the line connecting these rotation axes 311 defines the axis 313 of the blade row 31. When the air blowing device 3 is in use, these blade units 310 are adapted to rotate synchronously around the axis 313 of the blade row 31, or at least some of the blade units are configured to rotate independently of the remaining blade units around the axis 313 of the blade row 31.

[0030] According to such an air discharge device 3, a user can achieve overall control of the air discharge of the air discharge device 3 by controlling all of the blade units 310 to rotate synchronously around the axis 313. A user can achieve segment-by-segment control of the air discharge of the air discharge device 3 by controlling some of the blade units 310 to rotate while the remaining blade units 310 rotate with a delay or not at all. This helps to meet the individual air discharge needs of passengers and improve passenger comfort.

[0031] 3 and 11, in the air blowing device 3 of the first embodiment, the axis 313 of the blade row 31 is straight. The air outlet 302 has a substantially elongated shape, i.e., the size of the air outlet 302 in the length direction is much larger than the size of the air outlet 302 in the width direction. This makes it convenient to install the blade row 31 along the length direction of the air outlet 302. In other embodiments, the axis of the blade row may be a curved line or a broken line, as will be described below.

[0032] Optionally, the housing 30 is formed by mating an upper housing 361 with a lower housing 362 (see FIGS. 3 and 4). This is convenient for installing components such as the blade array 31, the air guide blades 36 (see FIG. 4), and the air distribution plate 38 (see FIG. 4) inside the housing 30.

[0033] Optionally, the air blowing device 3 further includes a motor (not shown) that drives the blade row 31 to rotate. Optionally, the motor is coupled to the blade unit at the beginning of the blade row 31, and sequentially drives all of the blade units 310 to rotate. In this manner, the driver and / or passenger does not need to manually adjust the blade row 31, but only needs to control the motor, which is convenient for use. Of course, in other implementations, the motor may be replaced with a thumbwheel, allowing the driver and / or user to manually adjust the blade row 31. It should be further understood that a transmission assembly may be further installed between the motor and the blade row 31, which may conveniently drive the blade row 31 to rotate even when the motor and the blade row 31 are installed at a distance. In this embodiment, the blade unit coupled to the motor forms the main blade unit 305.

[0034] The motor may be selectively located inside or outside the housing 30, as long as it can smoothly drive the blade row 31. The mounting structure of the motor can be easily obtained by those skilled in the art according to the actual situation, so a detailed description thereof will be omitted here.

[0035] 4, the blade unit 310 may include a leading blade unit 305 (see above), a following blade unit 304, and an optional transitional blade unit. In the embodiment shown in FIG. 4, the transitional blade units include a first transitional blade unit 303a located upstream and a second transitional blade unit 303b located downstream and adjacent to the first transitional blade unit 303a, and the two transitional blade units 303a, 303b are located adjacent to the middle of the blade row 31.

[0036] Fig. 5 shows a schematic view of the structure of one driven blade unit 304. Figs. 6 to 9 show the driven blade unit 304 from different angles. As shown in Figs. 5 to 9, the driven blade unit 304 includes a rotation shaft 311 and a blade 312 installed at an angle relative to the rotation shaft 311. Optionally, the driven blade unit 304 is integrally molded.

[0037] The first end 321 of the rotating shaft 311 is provided with a mating groove 314, the side wall of which is provided with a notch 324. The second end 322 is provided with a pin shaft extending axially outward, the circumferential side wall of which is provided with a boss 325. When installed, the pin shaft of the upstream adjacent blade unit of the driven blade unit 304 is inserted into the mating groove 314, and the boss of the upstream adjacent blade unit is mated with the notch 324. At the same time, the pin shaft of the driven blade unit 304 is inserted into the mating groove of the downstream adjacent blade unit, and the boss 325 is mated with the notch of the downstream blade unit. In this way, multiple blade units 310 are connected in series to form the blade row 31. The boss 325 and the corresponding notch form a clutch structure connecting two adjacent blade units 310.

[0038] The structure of the driving blade unit 305 is similar to that of the driven blade unit 304 shown in Fig. 5, with the only difference being that the first end of the driving blade unit 305 is adapted to be connected to a motor, which is easily understood by those skilled in the art and will not be described in detail here.

[0039] 8 and 9, the two radial surfaces of the boss 325 are the first and second mating surfaces 331 and 332, respectively, and the two radial surfaces of the notch 324 are the third and fourth mating surfaces 333 and 334, respectively. When these blade units 310 are mounted together, the first mating surface 331 of the boss 325 corresponds to the third mating surface 333 of the corresponding notch, and the second mating surface 332 of the boss 325 corresponds to the fourth mating surface 334 (see FIG. 12c). The central angle corresponding to the notch 324 is larger than the central angle corresponding to the boss 325; in other words, the distance along the circumferential direction between the first and second mating surfaces 331 and 332 is smaller than the distance along the circumferential direction between the third and second mating surfaces 333 and 334. The same applies to the bosses and notches (if present) of the other blade units 310. For example, in the driven blade unit 304, the central angle corresponding to the notch 324 (i.e., the angle between the third mating surface 333 and the fourth mating surface 334) is 110 degrees, and the central angle corresponding to the boss 325 (i.e., the angle between the first mating surface 331 and the second mating surface 332) is 90 degrees.

[0040] Because the central angle corresponding to the notch 324 is greater than the central angle corresponding to the boss 325, a first idle angle (e.g., 20 degrees) exists between adjacent blade units 310 in the blade row 31, and each adjacent upstream driven blade unit 304 can rotate independently of the downstream adjacent driven blade unit 304 through the first idle angle, which allows the clutch structure to have an engaged state and a disengaged state. In the engaged state of the clutch structure, the first mating surface 331 abuts against the third mating surface 333, thereby pushing the third mating surface 333, or the second mating surface 332 abuts against the fourth mating surface 334, thereby pushing the fourth mating surface 334, thereby realizing the upstream blade unit and the downstream blade unit moving to rotate synchronously. In a disengaged state of the clutch structure, the first mating surface 331 separates from the third mating surface 333, and the second mating surface 332 separates from the fourth mating surface 334, thereby realizing the upstream blade unit to rotate independently of the downstream blade unit. It should be understood that those skilled in the art may set the central angle corresponding to the notch 324 and the central angle corresponding to the boss 325 as other angles, as long as the function of the clutch structure is achieved, and detailed description thereof will be omitted here.

[0041] Because there is a first idling angle between adjacent blade units 310 and the blades 312 are installed at an angle relative to the rotation axis 311, when the driving blade unit 305 sequentially drives the driven blade units 304 one by one to rotate along the second rotation direction, the blade units 310 can be arranged such that the normal directions of adjacent blades 312 are different, so that at least some of the plurality of blade units 310 are suitable for providing one of the direct-blown airflow 335 and the oblique-blown airflow 336, and at least other of the plurality of blade units 310 are suitable for providing the other of the direct-blown airflow 335 and the oblique-blown airflow 336 (see FIGS. 16a, 17a, 18a, 19a, 20a, and 21a). This forms a second operation mode of the air blowing device 3. In the second operating mode, when the direct-blown airflow 335 and the oblique-blown airflow 336 approach each other, the airflow guidance state of the blade row 31 is a blade convergence state, and when the direct-blown airflow 335 and the oblique-blown airflow 336 move away from each other, the airflow guidance state of the blade row 31 is a blade divergence state. Furthermore, in the second operating mode, as the blade row 31 rotates, the blade units that provide the direct-blown airflow 335 and the oblique-blown airflow 336 can be periodically displaced along the axial direction of the blade row 31, and the blade convergence state and blade divergence state of the blade row 31 also periodically switch accordingly.

[0042] The structures of the first transition blade unit 303a and the second transition blade unit 303b are similar to those of the follower blade unit shown in Figure 5, and for the sake of brevity, only the differences will be described here. As shown in Figure 10A, the angle of the central angle corresponding to the notch 324 of the second transition blade unit 303b is larger than the angle of the central angle corresponding to the notch 324 of the follower blade unit 304, as well as the angle of the central angle corresponding to the notch 324 of the first transition blade unit 303a. Therefore, when the blade row 31 rotates, a second overturn angle exists between the first transition blade unit 303a and the adjacent upstream follower blade unit 304b, and between the first transition blade unit 303a and the second transition blade unit 303b, and the number of degrees of the second overturn angle is larger than the number of degrees of the first overturn angle. For example, the central angle corresponding to the notch 324 of the first transition blade unit 303a is 200 degrees, the central angle corresponding to the boss 325 of the first transition blade unit 303a is 90 degrees, and the central angle corresponding to the notch 324 of the second transition blade unit 303b is also 200 degrees, and thus the number of degrees of the second overturn angle may be up to 110 degrees (of course, if the boss is installed within the notch such that its two radial edges are both separated from the two radial edges of the notch, the number of degrees of the second overturn angle will be less than 110 degrees). It should be noted that under such circumstances, the central angle corresponding to the boss 325 of the second transition blade unit 303b is the same as the central angle corresponding to the boss 325 of the other driven blade unit 304 (e.g., both are 90 degrees). In this way, the blade row 31 can be configured such that, when rotating along a first rotation direction opposite to the second rotation direction, the plurality of follower blade units 304 upstream of the first transition blade unit 303a form a first group of blade units 306, and the second transition blade unit 303b and the plurality of follower blade units 304 downstream thereof form a second group of blade units 307. The blades of the blade units of the same group are parallel to each other and rotate synchronously, while the blades of the blade units of different groups are not parallel.In this manner, the two groups of blade units 306, 307 can be configured to provide one of an opposing airflow 337, a backflow 338, and a direct airflow 335 (see FIGS. 13a, 14a, and 15a). When the blade row 31 is in a blade convergence state, the two groups of blade units 306, 307 provide the opposing airflow 337; when the blade row 31 is in a blade divergence state, the two groups of blade units 306, 307 provide the backflow 338; and when the blade row 31 is in a blade forward flow state, the two groups of blade units 306, 307 provide the direct airflow 335. This forms a first operating mode of the air blowing device 3, which will be described in detail below. In addition, in this first operating mode, the blade convergence state, blade divergence state, and blade forward flow state of the blade row 31 are periodically switched.

[0043] It should be noted that the central angles of the notches and bosses may be set to other degrees according to actual circumstances, which is easily realized by those skilled in the art and will not be described in detail here. For example, the notches of the first transitional blade unit 303a may be arranged so that the first transitional blade unit 303a has a maximum idle rotation angle of 180 degrees in the first rotation direction. In this way, the second transitional blade unit 303b may be omitted, simplifying the structure of the air blowing device 3 while still achieving the first operating mode of the air blowing device 3. Therefore, a detailed description thereof will not be given here.

[0044] Optionally, to prevent the blades 312 of the first transition blade unit 303a from interfering with the rotation of adjacent blade units, the blades 312 of the first filtering blade unit 303a can be arranged in a generally fan-shaped configuration (see FIG. 10B ). A first radial edge 326 of the fan-shaped configuration is adapted to mate with a blade of an upstream adjacent blade unit, and a second radial edge 327 is adapted to mate with a blade of a downstream adjacent blade unit. It should be understood that if the spacing between the blade units is relatively large and / or the blade inclination angle is relatively small, the blades 312 of the first transition blade unit 303a do not need to be arranged in a generally fan-shaped configuration.

[0045] The operation process of the air blowing device 3 will be described below with reference to Figs. 12a to 21c.

[0046] First, the first operation mode of the air blowing device 3 will be described.

[0047] 12a shows the initial state of the blade row 31 of the air blowing device 3. In this initial state, the blades 312 of the blade unit 310 are parallel to each other and inclined with respect to the axis 313 of the blade row 31.

[0048] Figure 12b shows the state of the clutch structure between the first transitional blade unit 303a and the second transitional blade unit 303b. In the initial state, the boss 325 of the first transitional blade unit 303a is within the notch 324 of the second transitional blade unit 303b. The first and third mating surfaces 331 and 333 are separated at a first angle α1 of 20 degrees, and the second and fourth mating surfaces 332 and 334 are separated at a second angle α2 of 90 degrees, so that the clutch structure between the first transitional blade unit 303a and the second transitional blade unit 303b is in a disengaged state. The state of the clutch structure between the first transitional blade unit 303a and the adjacent upstream driven blade unit is the same as in Figure 12b, so a detailed description will be omitted here.

[0049] As shown in Figure 12c, in an initial state, the boss 325 of the driving blade unit 305 is within the notch 324 of the adjacent downstream driven blade unit 304a. The first and third mating surfaces 331 and 333 are separated to form a third angle α3 of 20 degrees, and the second mating surface 332 abuts against the fourth mating surface 334, so that the clutch structure between the driving blade unit 305 and the adjacent downstream driven blade unit 304a is in a mated state in a first rotational direction (e.g., clockwise). The states of the clutch structures between the remaining driven blade units and the clutch structure between the second transition blade unit 303b and the adjacent downstream driven blade unit are the same as those in Figure 12c, and therefore will not be described in detail here.

[0050] Thus, the state of the clutch structure between the first transition blade unit 303 a and the second transition blade unit 303 b is different from the state of the clutch structure between the second transition blade unit 303 b and the adjacent downstream blade unit, and therefore, based on the difference in the states of the two clutch structures, the plurality of follower blade units upstream of the first transition blade unit 303 a form a first group of blade units 306, and the second transition blade unit 303 b, together with the plurality of follower blade units downstream thereof, form a second group of blade units 307.

[0051] Starting from the initial state, the driving blade unit 305 rotates along a first rotation direction, thereby enabling the air blowing device 3 to be in a first operating mode. As shown in FIG. 13c, the driving blade unit 305 rotates approximately 180 degrees clockwise, driving the first group of blade units 306 to rotate approximately 180 degrees. Correspondingly, as shown in FIG. 13b, in the clutch structure between the first transitional blade unit 303a and the second transitional blade unit 303b, the second mating surface 332 and the fourth mating surface 334 also switch from separation to contact. Because the first transitional blade unit 303a absorbs a 90-degree idle rotation angle in the first rotation direction, the first transitional blade unit 303a rotates approximately 90 degrees along the first rotation direction, while the second group of blade units 307 (including the second transitional blade unit 303b) have not yet rotated. As a result, as shown in FIG. 13a, when viewed from the perspective of the entire blade row 31, the first group of blade units 306 and the second group of blade units 307 provide opposing airflows 337, and the blade row 31 is in a blade convergence state.

[0052] Next, as shown in Fig. 14c, the leading blade unit 305 rotates clockwise by approximately 90 degrees again, and drives the first group of blade units 306 to rotate synchronously by approximately 90 degrees. Correspondingly, as shown in Fig. 14b, the first transitional blade unit 303a drives the second transitional blade unit 303b, and then drives the second group of blade units 307 to rotate synchronously by approximately 90 degrees clockwise. As a result, as shown in Fig. 14a, when viewed from the perspective of the blade row 31 as a whole, the first group of blade units 306 and the second group of blade units 307 provide a direct blown airflow 335, and the blade row 31 is in a blade forward flow guide state.

[0053] Next, as shown in Fig. 15c, the leading blade unit 305 again rotates approximately 90 degrees clockwise and propels the first group of blade units 306 to rotate synchronously by approximately 90 degrees. Correspondingly, as shown in Fig. 15b, the first transitional blade unit 303a propels the second transitional blade unit 303b, and then continues to propel the second group of blade units 307 to rotate synchronously by approximately 90 degrees clockwise. As a result, as shown in Fig. 15a, when viewed from the perspective of the blade row 31 as a whole, the first group of blade units 306 and the second group of blade units 307 provide a backflow 338, and the blade row 31 is in a blade divergence state.

[0054] As the driving blade unit 305 continues to rotate along the first rotation direction, the blade row 31 then cyclically exhibits the flow-direction states shown in Figures 13a, 14a, and 15a in sequence, and detailed descriptions thereof are omitted here.

[0055] Next, the second operation mode of the air blowing device 3 will be described.

[0056] Starting from the initial state, the driving blade unit 305 can rotate along a second rotation direction (e.g., counterclockwise), thereby causing the air blowing device 3 to be in a second operating mode. As shown in FIG. 16c, the driving blade unit 305 rotates counterclockwise by 20 degrees, causing the first mating surface 331 to abut against the third mating surface 333 (i.e., eliminating the third angle α3), and the second mating surface 332 to move away from the fourth mating surface 334. The driving blade unit 305 then continues to rotate along the second rotation direction until the first mating surfaces 331 of all clutch structures abut against the corresponding third mating surfaces 333 (i.e., eliminating all first angles α1), thereby achieving a mating state in the second rotation direction. FIG. 16b schematically illustrates the state of the clutch structures of the first transition blade unit 303a and the second transition blade unit 303b (in a mating state in the second rotation direction). In this way, each individual blade unit is rotated 20 degrees relative to the adjacent blade unit, causing the blade normal directions of adjacent blade units 310 to differ, and therefore the guide directions of each blade unit 310 to the airflow to differ. For example, as shown in FIG. 16a, the first transitional blade unit 303a guides the airflow to blow forward, forming a straight-blow airflow 335, while the blade units on both sides of the first transitional blade unit 303a guide the airflow to blow diagonally away from the straight-blow airflow 335, forming a diagonal-blow airflow 336 away from the straight-blow airflow 335. For example, some blade units near the beginning of the blade row 31 (i.e., the leading blade unit 305) guide the airflow to blow to the right, while some blade units near the end of the blade row 31 guide the airflow to blow to the left. At this time, the blade row 31 is in a blade divergence state.

[0057] Next, as shown in Figure 17c, the driving blade unit 305 continues to rotate 90 degrees counterclockwise. In all clutch structures, since the first angle α1 does not exist, the entire blade row 31 also rotates 90 degrees synchronously along the second rotation direction (see Figure 17b). As a result, as shown in Figure 17a, when viewed from the perspective of the entire blade row 31, some blade units near the end of the blade row 31 provide a direct-blown airflow 335, while the remaining blade units provide an oblique-blown airflow 336 that is away from the direct-blown airflow 335. At this time, the blade row 31 is still in a blade divergence state.

[0058] Next, as shown in Fig. 18c, the driving blade unit 305 continues to rotate 40 degrees along the second rotation direction. Correspondingly, the entire blade row 31 also rotates 40 degrees along the second rotation direction in synchronization (see Fig. 18b). As a result, as shown in Fig. 18a, when viewed from the perspective of the blade row 31 as a whole, some blade units in the blade row 31 provide a direct-blown airflow 335, and the remaining blade units provide an oblique-blown airflow 336 that approaches the direct-blown airflow 335. At this time, the blade row 31 is in a blade convergence state.

[0059] Next, as shown in FIG. 19c, the driving blade unit 305 continues to rotate by 60 degrees along the second rotation direction. Correspondingly, the entire blade row 31 also rotates synchronously by 60 degrees along the second rotation direction (see FIG. 19b). As a result, as shown in FIG. 19a, when viewed from the perspective of the blade row 31 as a whole, some blade units in the blade row 31 provide direct-blown airflows 335, while the remaining blade units provide oblique-blown airflows 336 that approach the direct-blown airflows 335. At this time, the blade row 31 is in a blade convergence state. Compared to the state shown in FIG. 18a, the direct-blown airflows 335 in FIG. 19a are displaced toward the end of the blade row 31.

[0060] Next, as shown in FIG. 20c, the driving blade unit 305 continuously rotates 60 degrees along the second rotation direction. Correspondingly, the entire blade row 31 also synchronously rotates 60 degrees along the second rotation direction (see FIG. 20b). As a result, as shown in FIG. 20a, when viewed from the perspective of the blade row 31 as a whole, some blade units in the blade row 31 provide direct-blown airflow 335, while the remaining blade units provide oblique-blown airflow 336 that approaches the direct-blown airflow 335. At this time, the blade row 31 is in a blade convergence state. Compared to the one shown in FIG. 19a, the direct-blown airflow 335 in FIG. 20a is continuously displaced toward the end of the blade row 31.

[0061] Next, as shown in Fig. 21c, the driving blade unit 305 continues to rotate by 60 degrees along the second rotation direction. Correspondingly, the entire blade row 31 also rotates synchronously by 60 degrees along the second rotation direction (see Fig. 21b). As a result, as shown in Fig. 21a, when viewed from the perspective of the entire blade row 31, some blade units near the beginning of the blade row 31 provide a straight-blown airflow 335, while the remaining blade units provide an oblique-blown airflow 336 that is away from the straight-blown airflow 335. At this time, the blade row 31 is in a blade divergence state.

[0062] As the driving blade unit 305 continues to rotate, the blade row 31 then cyclically exhibits the flow-directing states shown in Figures 16a, 17a, 18a, 19a, 20a, and 21a, and detailed descriptions thereof will be omitted here.

[0063] As is apparent from the above description, the air blowing device 3 according to the first embodiment of the present application can operate not only in the second operation mode, but also in the first operation mode, and the two operation modes can be conveniently switched by switching the rotation direction of the motor, which is convenient for users to select the operation mode of the air blowing device 3 according to actual needs. It should be further understood that the rotation of the blade row 31 can also be stopped (for example, by stopping the rotation of the motor or cutting off the transmission between the motor and the blade row 31), thereby fixing the air blowing device 3 in a certain air blowing state, and more different air blowing mode combinations can also be realized by designing different idling angles in the first and second rotation directions for the clutch structure according to needs.

[0064] Optionally, as shown in Fig. 4, the air blowing device 3 further includes a first damper 32 installed between the blade unit 310 at the end of the blade row 31 and the housing 30. The friction force between the first damper 32 and the housing 30 is greater than the transmission resistance between any two adjacent blade units 310. In this way, when the air blowing device 3 operates, it is possible to avoid a situation in which some blade units maintain their current airflow direction and are unable to switch the airflow direction because the transmission resistance between any two blade units 310 is relatively large.

[0065] 4, a guide blade 36 is further installed at the air inlet 301 of the air blowing device 3. The guide blade 36 extends along the length of the air inlet 301 and is adapted to swing along the width of the air inlet 301, thereby driving the airflow to flow along one or both radial sides of the blade row 31, which can further adjust the air blowing direction of the air blowing device 3 and further help improve the riding comfort of the automobile 1. For example, as shown in Figure 22a, when the air guide blade 36 swings until it comes into contact with the upper housing 361, the airflow flows radially below the blade row 31 (see arrows in Figure 22a); as shown in Figure 22b, when the air guide blade 36 swings until it is parallel to the upper housing 361 and the lower housing 362, the airflow flows on both radial sides of the blade row 31 (see arrows in Figure 22b); and further, as shown in Figure 22c, when the air guide blade 36 swings until it comes into contact with the lower housing 362, the airflow flows radially above the blade row 31 (see arrows in Figure 22c).

[0066] 4 and 5, an air distribution plate 38 is installed in the housing 30 between the blade row 31 and the air outlet 302. The air distribution plate 38 extends along the length of the air outlet 302 and is spaced apart from the housing 30. The air distribution plate 38 has two air guide sides corresponding to both radial sides of the blade row 31, i.e., a first air guide side 381 corresponding to the upper housing 361 and a second air guide side 382 corresponding to the lower housing 362. For example, in this embodiment, the cross section of the air distribution plate 38 is approximately triangular. Of course, the cross section of the air distribution plate 38 may have other shapes to match the shape of the housing 30, as long as it is possible to form airflow channels of uniform width between the air distribution plate 38 and the upper and lower housings 361 and 362. The air distribution plate 38 can further adjust the direction in which the air flows out of the air outlet 302 and prevent direct contact with the blade row 31 from the outside, which improves the safety performance of the air blowing device 3.

[0067] It should be further understood that if the air blowing device 3 only has the second operation mode, the first and second idling angles may not exist between the blade units 304 (i.e., the first angle α1, the second angle α2, and the third angle α3 described above do not exist), and the blade units 304 may be pre-installed as shown in Fig. 16a. Furthermore, multiple blades may be installed on one complete shaft in the blade guided state shown in Fig. 16a, and thus the second operation mode of the air blowing device 3 can be realized when the shaft rotates.

[0068] Second Example

[0069] The air blower of the second embodiment has a similar overall structure to the air blower 3 of the first embodiment. For the sake of brevity, only the differences between the two will be described here. As shown in FIG. 23 , in the blade row 42 of the air blower of the second embodiment, at least two adjacent blade units are connected by a universal joint 41. In other words, the universal joint 41 forms a clutch structure between the two adjacent blade units. In this way, the axis 313 of the blade row 31 includes a straight segment and / or a curved segment. Therefore, the blade row 31 can be applied not only to air blower devices with linear air outlets, but also to air blower devices with angled or curved air outlets, allowing for convenient user selection.

[0070] Alternatively, the straight segments of the axis 313 can be realized by the engagement of the pin shaft and the mating groove 314 described above, and the curved segments of the axis 313 can be realized by one or more universal joints 41.

[0071] As shown in Figures 24 and 25, universal joint 41 includes a ball socket 410 formed at a first end of one rotating shaft and a ball head 411 formed at a second end of the other rotating shaft, and ball head 411 is rotatably mounted within ball socket 410.

[0072] Optionally, as shown in Figures 24 and 25, two sliding grooves 412 are formed on the inner wall of the ball socket 410, facing each other in the radial direction, and two guide rods 413 are correspondingly formed on the ball head 411, facing each other in the radial direction. The two guide rods 413 are rotatably mounted in the corresponding sliding grooves 412, and a rotation allowance is left for the guide rods 413 within the sliding grooves 412. The rotation allowance forms an idle rotation angle between the two blade units, which facilitates adjusting a certain flow guide state of the blade units.

[0073] Third Example

[0074] 26 is a schematic representation of the blade row 53 of the air blowing device of the third embodiment. It should be understood that the other structures of the air blowing device of the third embodiment are the same as those of the air blowing device 3 of the first embodiment, with the only difference being the blade row 53. For the sake of brevity, only the blade row 53 will be described here.

[0075] The blade row 53 of the air blowing device of the third embodiment includes more blade units than the blade row 31 of the air blowing device 3 of the first embodiment shown in Fig. 11. Thus, when the air blowing device of the third embodiment is in the second operation mode, at a certain time, there are a plurality of first blade unit groups (e.g., blade unit group Ia, blade unit group Ib, and blade unit group Ic shown schematically in Fig. 26) that provide a straight-blown airflow 335 in the blade row 53, and there are also a plurality of second blade unit groups (e.g., blade unit group IIa, blade unit group IIb, and blade unit group IIc shown schematically in Fig. 26) that provide an oblique-blown airflow 336 in the blade row 53. The first blade unit groups and the second blade unit groups are alternately distributed along the axis 313 of the blade row 53. For the blade unit group Ia, the blade unit group IIa and the blade unit group IIb provide an obliquely blown airflow 336 approaching the adjacent directly blown airflow 335, and for the blade unit group Ib, the blade unit group IIb and the blade unit group IIc provide an obliquely blown airflow 336 away from the directly blown airflow 335. As a result, adjacent different regions of the blade row 53 have different flow guidance states; for example, the region including the blade units Ia, IIa, and IIb is in a blade convergence state, while the region including the blade units Ib, IIb, and IIc is in a blade divergence state. As the blade row 53 rotates (for example, in the rotation direction M shown in FIG. 26 ), the first blade unit groups providing the directly blown airflow 335 periodically move along the axis 313 of the blade row 53, and correspondingly, the second blade unit group providing the obliquely blown airflow 336 also periodically moves along the axis 313 of the blade row 53. In this way, the passengers can feel the effect of natural wind such as waves, improving passenger comfort.

[0076] It should be further understood that when the blade row 53 rotates along the first rotation direction, the air blowing device of the third embodiment is in the first operation mode, and the flow directing state of these blade units is similar to the flow directing state of the blade row of the first embodiment, so a detailed description will be omitted here. It should be noted that in the first operation mode of the air blowing device 3 of the first embodiment, there are two groups of blade units, but in the air blowing device of the third embodiment, these blade units can be divided into more groups.

[0077] Fourth Example

[0078] The air blowing device 6 of the fourth embodiment is substantially the same as the air blowing device 3 of the first embodiment, and for the sake of brevity, only the differences will be described here.

[0079] In the blade row 61 of the air blowing device 6 of the fourth embodiment, the first damper 32 installed between the end blade unit 310 of the blade row 31 and the housing 30 in the air blowing device 3 of the first embodiment is omitted, but a second damper 610 is installed in the clutch structure between adjacent blade units. For example, as shown in FIG. 27, the second damper 610 is installed on the second end 322 of the rotating shaft 311. Thus, after the second end 322 is inserted into the corresponding mating groove, the second damper 610 exists in the clutch structure. Furthermore, as shown in FIG. 28, a first limiting block 621 is installed on the housing 30, and a second limiting block 622 is installed on the end blade unit of the blade row 61. Both the first limiting block 621 and the second limiting block 622 extend transversely to the axis of the blade row 61.

[0080] By installing the second damper 610, when the blade row 61 rotates along the first rotation direction or the second rotation direction, as long as the second limiting block 622 is not yet in contact with the first limiting block 621, all blade units rotate synchronously throughout, in other words, the blade row 61 rotates as a unit throughout, and thus the air blowing device 6 is in one operation mode throughout. For example, as shown in Figure 29, the air blowing device 6 is in the second operation mode throughout. Of course, the blade row 61 may be installed so that the air blowing device 6 is in the first operation mode throughout. When the blade row 61 rotates in the first rotation direction or the second rotation direction until the second limiting block 622 contacts the first limiting block 621, if the first and / or second freewheel angle described above exists between adjacent blade units 310, the adjacent blade units 310 will rotate relative to each other and gradually switch their alignment, and if the first and / or second freewheel angle described above does not exist between adjacent blade units 310, the blade row 61 will stop rotating. If necessary, the motor can be controlled to rotate in the opposite direction, thereby allowing the blade row 61 to rotate in the opposite direction as a unit under the action of the second damper 610.

[0081] Optionally, as shown in FIG. 29 , the air blowing device 6 may further include a touch control panel 611. When the air blowing device 6 is in the second operating mode and a user touches the touch control panel 611, the direct airflow 335 generated by the blade row 61 is positioned at the position indicated by the touch position. After the touch position is moved, the blade row 611 can be controlled to rotate along a first rotation direction or a second rotation direction (for example, this can be achieved by a motor switching the rotation direction in response to a change in the touch control position, which is easily realized by those skilled in the art), and the direct airflow 335 generated by the blade row 61 is further adjusted to the position indicated by the moved touch position. In this way, the user can more precisely control the air blowing from the air blowing device 6, which further helps to improve passenger comfort.

[0082] Fifth Example

[0083] FIG. 30 is a schematic diagram illustrating the structure of the air blowing device 7 of the fifth embodiment. As shown in FIG. 30, a first air duct 701 and a second air duct 702 are formed in a housing 30. The blade rows 31 described in any one of the first to fourth embodiments are installed in the first air duct 701 and the second air duct 702. In this case, the air blowing device 7 also has two air outlets, which correspond to the first air duct 701 and the second air duct 702, respectively. In this way, the effect of blowing air in more directions can be achieved using one air blowing device 7. Other components (e.g., a display screen) may be installed or integrated between the two air outlets. In this way, the other components and the air blowing device 7 can be formed into a single complete component, which is convenient for installation in the automobile 1.

[0084] Furthermore, in the air blowing device 7 of the fifth embodiment, the blade rows in different air ducts may be driven independently using their own motors, or may be driven by a single motor.

[0085] In other embodiments, the housing 30 may have more air ducts, and each air duct may be provided with a blade row as described in any one of the first to fourth embodiments, and a detailed description thereof will be omitted here.

[0086] It should be noted that the present invention (e.g., inventive concepts, etc.) has already been described in the specification and / or illustrated in the figures of this patent document according to exemplary embodiments, and the embodiments of the present invention are proposed by way of example only and are not intended to limit the scope of the present invention. The structure and / or layout of the elements of the inventive concepts embodied in the present invention as described in the specification and / or illustrated in the figures are merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it is readily apparent to those skilled in the art that equivalents, modifications, and variations of the subject matter of the exemplary and alternative embodiments are possible and are considered to fall within the scope of the present invention, and all such subject matter (e.g., modifications, variations, embodiments, combinations, and equivalents) are intended to be included within the scope of the present invention. It should be further noted that various / other modifications, alterations, substitutions, equivalents, variations, and omissions may be made in the configuration and / or layout of the exemplary embodiments (e.g., aspects of the concept, design, structure, device, form, equipment, structure, means, functions, systems, processes / methods, steps, sequence of process / method steps, operation, operating conditions, performance, materials, compositions, and combinations) without departing from the scope of the present invention, and all such subject matter (e.g., modifications, variations, embodiments, combinations, and equivalents) is intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter (e.g., details, structure, functions, materials, acts, steps, sequence, systems, and results) described in the specification and / or drawings of this patent document. It should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments and not to limit the scope of the present invention, with the consideration that the claims of this patent document should be properly interpreted as the complete scope covering the subject matter of the present invention (e.g., including any and all such modifications, variations, embodiments, combinations, and equivalents).

[0087] It should be further noted that, in accordance with the exemplary embodiments, the present invention may include conventional technologies (e.g., technologies implemented and / or integrated in the exemplary embodiments, modifications, variations, combinations, and equivalents), or any other applicable technologies (present and / or future) capable of performing the functions, processes / operations described in the specification and / or illustrated in the figures. All such technologies (e.g., technologies implemented in the manner of embodiments, modifications, variations, combinations, and equivalents) are all deemed to fall within the scope of the present invention of this patent document. [Explanation of symbols]

[0088] 1. Automobiles 2. Dashboard 21 Pillar 3. Air blowing device of the first embodiment 6. Air blowing device of the fourth embodiment 7 Air blowing device of the fifth embodiment 30 Housing 301 Air intake 302 Air outlet 303a First Transition Blade Unit 303b Second Transition Blade Unit 304 Follower Blade Unit 304a: downstream follower blade unit adjacent to the leading blade unit 304b: an upstream follower blade unit adjacent to the first transition blade unit; 305 Active Blade Unit 306 First Group Blade Unit 307 Second Group Blade Unit 310 Blade Unit 31 Blade row of the air blowing device of the first embodiment 311 Rotation axis 312 Blade 313 axis 314 Joint groove 32 First damper 321 First end of the rotating shaft 322 Second end of the rotating shaft 324 Notch 325 Boss 326 First radial edge 327 Second radial edge 331 1st joint surface 332 Second joint surface 333 Third joint surface 334 4th joint surface 335 Direct airflow 336 Oblique Airflow 337 Countercurrent 338 Backward airflow 36 Wind guide blade 361 Upper Housing 362 Lower Housing 38 Air distribution plate 381 1st wind guide side 382 2nd wind guide side 41 Universal joint 42 Blade row of the air blowing device of the second embodiment 410 Ball Socket 411 Ball Head 412 Slide groove 413 Guide Rod 53 Blade row of the air blowing device of the third embodiment 61 Blade row of the air blowing device of the fourth embodiment 610 Second damper 611 Touch Control Panel 621 First Restriction Block 622 Second Restriction Block 701 First Air Duct 702 Second Air Duct

Claims

1. An air blowing device comprising: a housing; and a blade row; The housing includes an air intake and an air outlet, the blade row is disposed inside the housing and extends along the length of the air outlet, the blade row includes a plurality of blade units connected in series to one another, and the plurality of blade units are adapted to rotate synchronously around an axis of the blade row, or at least some of the blade units are adapted to rotate independently of the remaining blade units around the axis of the blade row.

2. 2. The air blowing device according to claim 1, wherein each of the blade units includes a rotation axis and at least one blade disposed at an angle to the rotation axis.

3. 3. The air blowing device according to claim 2, wherein each of the blade units is integrally molded.

4. 2. The air blowing device according to claim 1, further comprising a first damper, the first damper being installed between a blade unit at an end of the blade row and the housing, and a frictional force between the first damper and the housing being greater than a transmission resistance between any two adjacent blade units.

5. 3. The air blowing device according to claim 2, wherein the axis of the blade row comprises straight and / or curved segments.

6. The air blowing device according to claim 5, wherein in the linear segment, the rotation axes of the plurality of blade units are connected in series and arranged on the same straight line.

7. The air blowing device according to claim 5, wherein in the curved line segment, the rotation axes of at least two of the blade units are connected to each other by a universal joint.

8. 8. The air blowing device according to claim 7, wherein the universal joint includes a ball socket formed on a rotation shaft of one of the two blade units and a ball head formed on the rotation shaft of the other of the two blade units, the ball head being rotatably mounted within the ball socket.

9. 9. The air blowing device according to claim 8, wherein two sliding grooves are formed on the inner wall of the ball socket, the two guide rods are formed on the ball head, the two guide rods are rotatably mounted in the corresponding sliding grooves.

10. 3. The air blowing device according to claim 2, further comprising a plurality of second dampers, each of which is installed between the rotation axes of two adjacent blade units, thereby making it suitable for the plurality of blade units to rotate synchronously.

11. The air blowing device according to claim 1, further comprising a motor, and the blade row is driven to rotate by the motor.

12. 3. The air blowing device according to claim 2, further comprising a plurality of clutch structures, each of which is connected between two adjacent blade units, and each of which is installed to have an engaged state and a disengaged state, such that when the clutch structure is in the engaged state, the upstream blade unit drives the adjacent downstream blade unit to rotate synchronously, and when the clutch structure is in the disengaged state, the upstream blade unit rotates independently of the adjacent downstream blade unit.

13. 13. The air blowing device of claim 12, wherein each of the clutch structures includes a first mating surface, a second mating surface, a third mating surface associated with the first mating surface, and a fourth mating surface associated with the second mating surface, and in the mated state, the first mating surface maintains contact with the third mating surface, or the second mating surface maintains contact with the fourth mating surface, and in the disengaged state, the first mating surface separates from the third mating surface, and the second mating surface separates from the fourth mating surface.

14. 14. The air blowing device according to claim 13, wherein the first and second joint surfaces are installed on a rotation axis of one of two adjacent blade units, and the third and fourth joint surfaces are installed on a rotation axis of the other of the two adjacent blade units.

15. a pin shaft extending in the axial direction is provided at an end of a rotation shaft of one of the two adjacent blade units, and a boss is provided on a circumferential side wall of the pin shaft, and two radial surfaces of the boss form the first joint surface and the second joint surface, respectively; The air blowing device according to claim 14, characterized in that a joint groove aligned with the pin shaft is provided at the end of the other rotation shaft of the two adjacent blade units, a notch aligned with the boss is provided on the inner wall of the joint groove, and two radial surfaces of the notch form the third joint surface and the fourth joint surface, respectively.

16. The air blowing device according to claim 15, wherein a central angle corresponding to the notch is larger than a central angle corresponding to the boss.

17. The air blowing device according to claim 1, characterized in that a wind guide blade is installed at the air intake of the housing, and the wind guide blade extends along the length direction of the air intake and is suitable for swinging along the width direction of the air intake.

18. 2. The air blowing device according to claim 1, wherein an air distribution plate is installed between the air outlet of the housing and the blade row, the air distribution plate extending along the length of the air outlet and spaced apart from the housing.

19. 2. The air blowing device according to claim 1, wherein the housing is provided with a plurality of parallel air ducts, and each of the air ducts is provided with the blade row.

20. An air blowing device comprising: a housing; and a blade row; The housing includes an air intake and an air outlet, the blade row is disposed inside the housing and extends along the length of the air outlet, the blade row including a plurality of blade units connected in series with each other; The plurality of blade units are adapted to rotate synchronously around the axis of the blade row, or at least some of the blade units are adapted to rotate independently around the axis of the blade row relative to the remaining blade units, so that the blade row is configured to have one or more of a blade convergence state, a blade divergence state, and a blade forward flow direction state.

21. Each of the blade units includes a rotation axis and at least one blade disposed at an angle to the rotation axis; 21. The air blowing device according to claim 20, wherein the air blowing device is configured to include a first operation mode, and under the first operation mode, the plurality of blade units are divided into at least two groups, the blade units of the same group are configured to have blades parallel to each other, and the blade units of two adjacent groups are configured to have blades that are not parallel to each other, so that the blade units of the two adjacent groups are suitable for providing an opposing airflow when in the blade converging state, a backflow when in the blade diverging state, or a straight airflow when in the blade forward directing state.

22. Each of the blade units includes a rotation axis and at least one blade disposed at an angle to the rotation axis; the air blowing device is configured to include a second operation mode, and in the second operation mode, adjacent blade units are configured so that normal directions of the blades are different, so that at least some of the plurality of blade units are suitable for providing one of a direct-blown airflow and an oblique-blown airflow, and at least some other of the plurality of blade units are suitable for providing the other of the direct-blown airflow and the oblique-blown airflow, 21. The air blowing device according to claim 20, wherein in the blade convergence state, the obliquely blown airflow and the adjacent directly blown airflow approach each other, and in the blade divergence state, the obliquely blown airflow and the adjacent directly blown airflow move away from each other.

23. 23. The air blowing device according to claim 22, wherein under the second operating mode, the blade row includes a plurality of first blade unit groups providing the straight-blown airflow and a plurality of second blade unit groups providing the oblique-blown airflow, and the plurality of first blade unit groups and the plurality of second blade unit groups are alternately distributed along an axis of the blade row.

24. An automobile comprising the air blowing device according to any one of claims 1 to 19 or the air blowing device according to any one of claims 20 to 23.

Images