Air guide device, air conditioner blower and vehicle

Abstract

The utility model discloses an air guide device, an air conditioner blower and a vehicle. The air guide device comprises a fixing base, a flow guide wheel disc and an impeller. The flow guide wheel disc is fixed to the fixing base, the multiple flow guide fins are rotationally arranged on the flow guide wheel disc, the air guide flow channels rotationally guiding flow towards the periphery are formed between every two adjacent flow guide fins, the impellers are located above the flow guide wheel disc and are axially arranged at intervals, and the driving shaft on the fixing base is connected with the impellers to drive the impellers to rotate. The impeller rotates, so that a negative pressure area is formed in the center of the impeller, air flow downwards flows into the air guide flow channel of the flow guide wheel disc from the center of the impeller, the air flow is rotationally guided by the air guide flow channel towards the periphery, the outer side edge of the impeller is flush with the outer side edge of the flow guide wheel disc, flowing of the air flow cannot be blocked, air resistance can be reduced, and noise can be reduced. And the diversion wheel disc does not block surrounding airflow of the diversion wheel disc, so that the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the fan technical field, specifically relates to a guide device, air conditioner blower and vehicle. BACKGROUND

[0002] The air conditioner blower is an important part in the vehicle-mounted air conditioning system, and mainly functions to suck air into the air conditioning system, filter and cool the air, and then send the air into the vehicle to provide a comfortable driving environment for the driver and passengers. The air conditioner blower is usually composed of a motor, an impeller, a shell, a flange plate and a control circuit, etc. The motor is the power source of the air conditioner blower, and the rotation speed of the air conditioner blower is controlled by the control circuit to control the air supply and noise. The impeller is the core component of the air conditioner blower, which sucks air into the air conditioner blower and sends the air into the vehicle through the rotation of the motor. Since the working rotation speed of the air conditioner blower is high, and the internal flow channel structure of the air conditioner main unit is complex, the impeller will excite the compressed air to generate low-frequency aerodynamic noise during the working process, which affects the driving comfort of the passengers in the passenger compartment.

[0003] Currently, in order to reduce the low-frequency aerodynamic noise, a guide device is arranged around the impeller, or the shell or the flange plate is used to shield the root of the impeller. Although this has a certain optimization effect on the noise, it reduces the air supply, and thus reduces the working efficiency of the air conditioner blower. CONTENT OF THE INVENTION

[0004] The air conditioner blower provided by the embodiments of the present application can solve the technical problem that the air supply is reduced when the low-frequency aerodynamic noise is reduced, and thus the working efficiency of the air conditioner blower is reduced.

[0005] In one aspect, the embodiments of the present application provide a guide device, which comprises:

[0006] A fixing seat, wherein the fixing seat comprises a sleeve, and a driving device is arranged in the sleeve;

[0007] A guide wheel disc, wherein the guide wheel disc is sleeved on the radial outer side of the sleeve, and the guide wheel disc comprises guide fins, and a guide air flow channel is formed between adjacent two guide fins;

[0008] An impeller, wherein the impeller is connected with the driving device, and the impeller and the guide wheel disc are arranged in the axial direction of the sleeve.

[0009] In some embodiments, the guide wheel disc further comprises a bottom plate and a center mounting ring, the center mounting ring and the guide fins are arranged on the bottom plate, one end of the guide fin is fixed to the center mounting ring, and the other end of the guide fin extends to the outer periphery of the bottom plate.

[0010] In some embodiments, the guide vanes are arc-shaped and are arranged along the circumference of the center mounting ring, and the axial height of the guide vanes is the same as the axial height of the center mounting ring.

[0011] In some embodiments, the guide vanes gradually increase in radial outward direction from the bending radius of the guide wheel disc, and the spacing between two adjacent guide vanes gradually increases in radial outward direction.

[0012] In some embodiments, the inner wall of the center mounting ring is provided with a first fixing part, and the outer wall of the sleeve is provided with a second fixing part, and the first fixing part and the second fixing part are arranged correspondingly.

[0013] In some embodiments, the fixing seat further comprises a base plate, the sleeve is arranged in the middle of the base plate, and the guide wheel disc is connected to the upper surface of the base plate.

[0014] In some embodiments, the axial thickness of the guide wheel disc is smaller than the axial thickness of the sleeve.

[0015] In some embodiments, the impeller comprises a center rotating shaft and a vertical air guiding structure, the radial inner side of the vertical air guiding structure is connected to the center rotating shaft, and the impeller and the sleeve are arranged radially spaced apart.

[0016] In another aspect, the embodiments of the present application further provide an air conditioner blower comprising the air guiding device of any one of the preceding embodiments and a driving device, the driving device is connected to the fixing seat, and the driving shaft of the driving device passes through the sleeve and is connected to the center rotating shaft of the impeller.

[0017] In still another aspect, the embodiments of the present application further provide a vehicle comprising the air guiding device or the air conditioner blower described above.

[0018] The air guiding device, the air conditioner blower and the vehicle provided by the embodiments of the present application have the following advantages: the guide wheel disc is fixed on the fixing seat, a plurality of guide vanes are arranged rotatably on the guide wheel disc, an air guiding flow channel is formed between two adjacent guide vanes for rotating air guiding, the impeller is arranged axially spaced apart above the guide wheel disc, the driving shaft of the fixing seat is connected to the impeller to drive the rotation of the impeller, the rotation of the impeller forms a negative pressure area at the center position of the impeller, so that the air flow flows into the air guiding flow channel of the guide wheel disc from the center of the impeller downward, the air flow is rotated and guided by the air guiding flow channel, the outer side edge of the impeller is flush with the outer side edge of the guide wheel disc and does not block the air flow, the air resistance is reduced, the noise is reduced, the air flow around the guide wheel disc is not blocked by the guide wheel disc, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the air guiding device provided in the embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the air guiding device provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the air guiding device provided in the embodiments of this application in a flattened state;

[0023] Figure 4 This is a schematic diagram of a partial structural assembly of the air guiding device provided in the embodiments of this application;

[0024] Figure 5 A top view of the guide vane provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the impeller structure provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of an air conditioner blower provided in an embodiment of this application;

[0027] Figure 8 A cross-sectional view of an air conditioning blower provided in an embodiment of this application.

[0028] The markings in the diagram are as follows:

[0029] Fixed base 1, sleeve 11, second fixed part 12, chassis 13, guide wheel 2, guide fins 21, air guide channel 22, center mounting ring 23, first fixed part 24, base plate 25, impeller 3, center rotating shaft 31, vertical air guide structure 32, fixed ring 33, guide vane 34, drive device 4, drive shaft 41, motor 42, air guide device 10, sealed motor flange 20, housing 30, air inlet 301, air supply channel 302, air outlet 303, gas filter device 40. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 This application provides an air guiding device 10. The air guiding device 10 includes a fixed base 1, a guide wheel 2, and an impeller 3.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8The fixed base 1 includes a sleeve 11, and a drive device 4 is disposed inside the sleeve 11. The drive device 4 includes a drive shaft 41 and a motor 42, that is, a sleeve 11 for passing through the drive shaft 41 is provided in the middle of the fixed base 1. A guide wheel 2 is sleeved on the radially outer side of the sleeve 11. The guide wheel 2 includes guide fins 21, and an airflow channel 22 is formed between two adjacent guide fins 21. A plurality of guide fins 21 are evenly distributed on the guide wheel 2 and are spaced apart from each other. The guide fins 21 on the guide wheel 2 rotate in the same direction. An impeller 3 is connected to the drive device 4. The impeller 3 and the guide wheel 2 are spaced apart along the axial direction of the sleeve 11, wherein the axial direction of the sleeve 11 is the axial direction of the drive shaft 41.

[0035] Please see Figure 2 , Figure 6 The impeller 3 has an inverted trumpet shape in the middle, which guides the gas to be transported from top to bottom and diffused in all directions. The impeller 3 and the guide wheel 2 are spaced apart along the axial direction. The drive shaft 41 drives the impeller 3 to rotate. The gap between the guide wheel 2 and the guide wheel 2 does not interfere with the rotation of the impeller 3. During the operation of the impeller 3, the guide wheel 2 and the fixed seat 1 are in a relatively static state, and then the impeller 3 is axially assembled through the drive shaft 41. Driven by the drive shaft 41, the impeller 3 rotates at high speed. During this process, the impeller 3 continuously forms a negative pressure zone, and gas is drawn into the impeller 3. Since the gas is drawn into the impeller 3 axially, the airflow will gather at the root of the impeller 3. The inverted trumpet-shaped structure in the middle of the impeller 3 guides the gas to be transported from top to bottom and diffused in all directions. The airflow is radially and evenly dispersed by the air guide channel 22 of the guide wheel 2, thereby reducing the turbulent kinetic energy at the root of the impeller 3 and alleviating local aerodynamic noise.

[0036] In this embodiment, a guide wheel 2 is fixed on a fixed base 1. Multiple guide fins 21 are rotatably arranged on the guide wheel 2 to form multiple airflow channels 22 that rotate in all directions. An impeller 3 is located above the guide wheel 2 and is axially spaced. A drive shaft 41 on the fixed base 1 is connected to the impeller 3 to drive the impeller 3 to rotate. The rotation of the impeller 3 creates a negative pressure zone at its center, causing the airflow to flow downward from the center of the impeller 3 into the airflow channels 22 of the guide wheel 2. Thus, the airflow is rotated in all directions by the airflow channels 22, which can reduce wind resistance, reduce noise, and improve working efficiency.

[0037] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The guide wheel also includes a base plate 25 and a central mounting ring 23. The central mounting ring 23 and the guide fins 21 are mounted on the base plate 25. One end of the guide fins 21 is fixed to the central mounting ring 23, and the other end of the guide fins 21 extends to the outer periphery of the base plate 25.

[0038] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The guide fins 21 are arc-shaped and spaced circumferentially along the central mounting ring 23. The axial height of the guide fins 21 is the same as the axial height of the central mounting ring 23. Specifically, the guide fins 21 extend arc-shaped from the inner side of the guide wheel 2 to the outer side of the guide wheel 2, and the guide fins 21 are centrally symmetrical about the center of the guide wheel 2.

[0039] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The bending radius of the guide fins 21 gradually increases radially outward from the base plate 25, that is, the bending radius of the guide fins 21 gradually increases from the radially inner side to the radially outer side of the guide wheel 2; the spacing between two adjacent guide fins 21 gradually increases radially outward from the base plate 25. Any two airflow channels 22 have the same shape.

[0040] Preferably, the rotation direction of the guide fins 21 along the center of the guide wheel 2 is the same as the rotation direction of the impeller 3 driven by the drive shaft 41. In this way, multiple air guide channels 22 form a rotating annular involute array guide mechanism, which can reduce the turbulent kinetic energy at the center and outer ring of the impeller 3, thereby reducing the low-frequency aerodynamic noise generated by the air guide device 10.

[0041] When air is axially introduced through the high-speed rotation of the impeller 3, the air guide channel 22 can evenly disperse the turbulence and vortex at the root of the impeller 3 in the radial direction, while also preventing backflow, thereby reducing the low-frequency aerodynamic noise generated by the local and surrounding airflow separation of the impeller 3.

[0042] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The inner wall of the central mounting ring 23 is provided with a plurality of first fixing parts 24, and the outer side of the sleeve 11 is provided with a plurality of second fixing parts 12, with the first fixing parts 24 and the second fixing parts 12 correspondingly arranged. Specifically, the first fixing parts 24 are arranged along the axial direction of the central mounting ring 23, and the second fixing parts 12 are arranged along the axial direction of the sleeve 11, with the first fixing parts 24 and the second fixing parts 12 being circumferentially limited and engaged with each other along the sleeve 11.

[0043] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 The first fixing part 24 is evenly distributed on the inner side of the central mounting ring 23, and the second fixing part 12 is evenly distributed on the outer side of the sleeve 11. The number of the first fixing part 24 is the same as the number of the second fixing part 12. The first fixing part 24 and the second fixing part 12 are slidably connected to each other in the axial direction of the sleeve 11.

[0044] During the assembly of the air guide device 10, the central mounting ring 23 of the air guide wheel 2 can be pressed into the sleeve 11 in the middle of the fixed base 1. The air guide wheel 2 can be easily disassembled and installed from the fixed base 1 by sliding the first fixing part 24 and the second fixing part 12 together in the axial direction of the sleeve 11. The first fixing part 24 and the second fixing part 12 are locked together in the circumferential direction of the sleeve 11 to prevent the air guide wheel 2 from rotating relative to the fixed base 1. Then, the impeller 3 is connected to the drive shaft 41 inside the sleeve 11 to complete the assembly of the air guide device 10.

[0045] Preferably, the first fixing part 24 is a groove, and the second fixing part 12 is a wedge-shaped protrusion. The width of the groove is equal to the width of the wedge-shaped protrusion. The lower end of the wedge-shaped protrusion is connected to the upper surface of the base 13, and the upper end of the wedge-shaped protrusion is connected to the middle of the sleeve 11. The thickness of the wedge-shaped protrusion gradually decreases from its lower end to its upper end. This arrangement facilitates the installation of the guide wheel 2 on the fixing seat 1, allowing the upper end of the wedge-shaped protrusion to be guided into the groove, achieving a transition fit or interference fit between the wedge-shaped protrusion and the groove. This prevents the guide wheel 2 from rotating relative to the fixing seat 1 and prevents loosening.

[0046] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The mounting base 1 also includes a chassis 13, a sleeve 11 disposed in the middle of the chassis 13, and a guide wheel 2 connected to the upper surface of the chassis 13. Preferably, an adhesive layer is provided between the base plate 25 and the chassis 13, and the base plate 25 is bonded to the chassis 13 without gaps through the adhesive layer, avoiding gaps caused by stress concentration or local warping during the installation and fitting process. The two are axially bonded to ensure a tight connection.

[0047] Preferably, in this embodiment, the outer edge of the impeller 3 is flush with the outer edge of the guide wheel 2, which does not obstruct the airflow, reduces wind resistance, reduces noise, and the guide wheel 2 does not obstruct the surrounding airflow, thus improving working efficiency.

[0048] In this embodiment, the thickness of the guide wheel 2 is less than the thickness of the sleeve 11, so that the guide wheel 2 can be stably fixed on the outside of the sleeve 11.

[0049] In this embodiment, please refer to Figure 1 ,Figure 2 , Figure 3 , Figure 4 The impeller 3 is equipped with a central rotating shaft 31 and a vertical air guide structure 32. The radially inner side of the vertical air guide structure 32 is connected to the central rotating shaft 31. The impeller 3 and the sleeve 11 are arranged radially at intervals. Specifically, the outer side of the central rotating shaft 31 is inverted trumpet-shaped, which can guide the gas to be transported from top to bottom and diffused in all directions. The central rotating shaft 31 is arranged corresponding to the sleeve 11 and connected to the drive shaft 41. The central rotating shaft 31 and the sleeve 11 are arranged radially at intervals to avoid interfering with the rotation of the impeller 3. The vertical air guide structure 32 is arranged in a ring around the central rotating shaft 31, and the inner side of the vertical air guide structure 32 is connected to the central rotating shaft 31. The central rotating shaft 31 can guide the airflow from the center of the impeller 3 downward into the air guide channel 22 of the guide wheel 2.

[0050] In this embodiment, please refer to Figure 5 , Figure 1 , Figure 2 , Figure 3 The vertical airflow guide structure 32 includes a fixed ring 33 and several guide vanes 34. The guide vanes 34 are arranged in parallel intervals in a ring. The top of the guide vanes 34 is connected to the inner side of the fixed ring 33. The top of the guide vanes 34 has an arc-shaped curved surface or a chamfered structure on the side away from the fixed ring 33. This facilitates the guidance of airflow from the center of the impeller 3 downwards into the airflow channel 22 of the guide vane disk 2, preventing airflow obstruction and reducing wind resistance and noise. Moreover, the fixed ring 33 can fix the structure of the guide vanes 34 and keep the position of the guide vanes 34 fixed. Preferably, the guide vanes 34 are arc-shaped, and the arc-shaped bending direction of the guide vanes 34 is the same as the rotational bending direction of the airflow channel 22. This facilitates the impeller 3 to drive the gas to form an airflow that flows downwards from the center of the impeller 3.

[0051] In this embodiment, please refer to Figure 4 The central rotating shaft 31 has a conical structure, and the guide vanes 34 are of the same length with their bottom ends flush. The inner side of the bottom end of the guide vanes 34 connects to the outer side of the central rotating shaft 31. The conical structure of the central rotating shaft 31 guides the airflow downward from the center of the impeller 3, reducing airflow resistance. The bottom ends of the guide vanes 34 are flush with the bottom ends of the central rotating shaft 31, and there is a gap between adjacent guide vanes 34, which facilitates the airflow from the center of the impeller 3 downward into the airflow channel 22 of the guide vane 2.

[0052] On the other hand, please see Figure 5 , Figure 1 This application also provides an air conditioning blower, which includes the air guiding device 10 and the drive device 4 described in any of the preceding claims. The drive device 4 is connected to the fixed base 1, and the drive shaft 41 of the drive device 4 passes through the sleeve 11 and is connected to the central rotating shaft 31 of the impeller 3. That is, the drive device 4 and the fixed base 1 are connected to form a sealed motor flange 20.

[0053] Please see Figure 2 , Figure 3 The air conditioning blower also includes a housing 30, an air guide device 10 and a sealed motor flange 20 connected inside the housing 30, an air inlet 301 corresponding to the air guide device 10, an air supply duct 302 formed around the air guide device 10, and an air outlet 303 at the end of the air supply duct 302.

[0054] Please see Figure 4 , Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 The air conditioner blower also includes a gas filter device 40, which is installed inside the air supply duct 302. The gas filter device 40 is capable of filtering the gas drawn into the air supply duct 302.

[0055] During the operation of the air conditioner blower, the control motor drives the drive shaft 41 to rotate, thereby achieving high-speed rotation of the impeller 3. During this process, a negative pressure zone is continuously formed at the center of the impeller 3, and gas is drawn into the impeller 3. Under the action of centrifugation, some gas is thrown out from the impeller 3 and directly enters the casing 30. Since the gas is drawn into the impeller 3 axially, the airflow will gather at the root of the impeller 3. The airflow flows downward into the air guide channel 22 of the guide wheel 2. The airflow will be radially and evenly dispersed by the air guide channel 22 of the guide wheel 2 into the air supply channel 302 inside the casing 30, thereby reducing the turbulent kinetic energy at the root of the impeller 3 and alleviating local aerodynamic noise.

[0056] In another aspect, embodiments of this application also provide a vehicle, including the aforementioned air guide device 10 or the aforementioned air conditioning blower.

[0057] The air guiding device, air conditioning blower, and vehicle provided in this application embodiment, by fixing a guide wheel disk on a fixed base, and rotatably arranging multiple guide fins on the guide wheel disk, forming an air guiding channel that rotates in all directions between two adjacent guide fins, and an impeller located above the guide wheel disk and axially spaced, and a drive shaft on the fixed base connected to the impeller to drive the impeller to rotate, the rotation of the impeller creates a negative pressure zone at its center, causing airflow to flow downward from the center of the impeller into the air guiding channel of the guide wheel disk, thereby the airflow is rotated in all directions by the air guiding channel, and the outer edge of the impeller is flush with the outer edge of the guide wheel disk without obstructing the airflow, which can reduce wind resistance and noise, and the guide wheel disk does not obstruct the airflow around the guide wheel disk, thus improving working efficiency.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The above provides a detailed description of the air guiding device, air conditioning blower, and vehicle provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air guiding device, characterized in that, include: A fixed base (1) is provided, the fixed base (1) includes a sleeve (11), and a driving device (4) is provided inside the sleeve (11); A flow guide wheel (2) is sleeved on the radial outer side of the sleeve (11). The flow guide wheel (2) includes flow guide fins (21), and an airflow channel (22) is formed between two adjacent flow guide fins (21). Impeller (3), the impeller (3) is connected to the drive device (4), and the impeller (3) and the guide wheel (2) are spaced apart along the axial direction of the sleeve (11).

2. The air guiding device as described in claim 1, characterized in that, The flow guide wheel (2) also includes a base plate (25) and a central mounting ring (23). The central mounting ring (23) and the flow guide fins (21) are disposed on the base plate (25). One end of the flow guide fins (21) is fixed to the central mounting ring (23), and the other end of the flow guide fins (21) extends to the outer periphery of the base plate (25).

3. The air guiding device as described in claim 2, characterized in that, The guide fins (21) are arc-shaped and are spaced apart along the circumference of the central mounting ring (23). The axial height of the guide fins (21) is the same as the axial height of the central mounting ring (23).

4. The air guiding device as described in claim 3, characterized in that, The bending radius of the guide fin (21) gradually increases outward along the radial direction of the base plate (25), and the spacing between two adjacent guide fins (21) gradually increases outward along the radial direction of the base plate (25).

5. The air guiding device as described in claim 2, characterized in that, The inner wall of the central mounting ring (23) is provided with a first fixing part (24), and the outer wall of the sleeve (11) is provided with a second fixing part (12). The first fixing part (24) and the second fixing part (12) are provided correspondingly.

6. The air guiding device as described in claim 1, characterized in that, The fixed base (1) also includes a chassis (13), the sleeve (11) is disposed in the middle of the chassis (13), and the guide wheel (2) is connected to the upper surface of the chassis (13).

7. The air guiding device as described in claim 1, characterized in that, The axial thickness of the guide wheel (2) is less than the axial thickness of the sleeve (11).

8. The air guiding device as described in claim 7, characterized in that, The impeller (3) includes a central rotating shaft (31) and a vertical air guide structure (32). The radial inner side of the vertical air guide structure (32) is connected to the central rotating shaft (31). The impeller (3) and the sleeve (11) are arranged radially at intervals.

9. An air conditioner blower, characterized in that, The device includes the air guide (10) according to any one of claims 1 to 8 and the drive device (4), the drive device (4) being connected to the fixed base (1), and the drive shaft (41) of the drive device (4) passing through the sleeve (11) and connected to the central shaft (31) of the impeller (3).

10. A vehicle, characterized in that, Includes the air guide device (10) according to any one of claims 1 to 8 or the air conditioning blower according to claim 9.

Images