Hub, impeller, fan and vehicle

Abstract

The utility model relates to a hub, an impeller, a fan and a vehicle, and the hub comprises a hub body which is provided with a flow guide channel for airflow to pass through; the flow guide channel penetrates through the hub body in the penetrating direction. According to the hub, the flow guide channel penetrating through the hub body in the penetrating direction is arranged, the air flowability of the two sides of the hub body is improved, sand and dust are taken away through airflow, remaining of the sand and dust is reduced, and therefore the sand discharging effect is improved.

Description

Technical Field

[0001] This application relates to the field of fan technology, and more particularly to a hub, impeller, fan, and vehicle. Background Technology

[0002] During vehicle operation, dusty road conditions are inevitable, which can easily cause dust to enter and accumulate inside the vehicle's fan, adversely affecting the fan's operation.

[0003] The related technology involves a fully enclosed hub design for the fan, which can easily cause sand and dust to accumulate, resulting in poor sand removal efficiency. Utility Model Content

[0004] This application provides a wheel hub that improves the sand removal effect of the wheel hub, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a wheel hub is provided, comprising:

[0006] The hub body has a guide channel for airflow;

[0007] The flow channel extends through the hub body along the penetration direction.

[0008] Optionally, in some embodiments of this application, the hub body is configured to rotate about a central axis under the drive of a prime mover;

[0009] The penetrating direction intersects the central axis at an angle.

[0010] Optionally, in some embodiments of this application, the hub body includes:

[0011] At least two guide vanes are spaced apart circumferentially along the central axis;

[0012] The guide vanes are inclined relative to the central axis, and a guide channel is formed between adjacent guide vanes.

[0013] Optionally, in some embodiments of this application, the installation angle of the guide vane ranges from 55° to 75°.

[0014] Optionally, in some embodiments of this application, the shape of the guide vane is one of a straight airfoil, a curved airfoil, a slanted airfoil, or an aircraft airfoil.

[0015] Optionally, in some embodiments of this application, the number of the guide vanes installed ranges from 8 to 12.

[0016] Optionally, in some embodiments of this application, in the circumferential direction of the central axis, the guide vane has a first spacing angle with the guide vane adjacent to one side, and the guide vane has a second spacing angle with the guide vane adjacent to the other side;

[0017] The difference between the first spacing angle and the second spacing angle ranges from 0° to 12°.

[0018] Optionally, in some embodiments of this application, the hub body has a windward side and a leeward side that are spaced apart in the axial direction;

[0019] The airflow channel is configured to connect the windward side and the leeward side, so as to guide the airflow from the windward side to the leeward side.

[0020] Optionally, in some embodiments of this application, the hub body is configured to rotate about a central axis under the drive of a prime mover, and the hub body includes:

[0021] The first mounting element is used to connect the fan blades;

[0022] The second mounting body forms a power coupling with the prime mover;

[0023] The first mounting body is disposed radially outside the second mounting body, and the flow channel is formed between the first mounting body and the second mounting body.

[0024] Optionally, in some embodiments of this application, the hub body includes:

[0025] At least two guide vanes are spaced apart circumferentially along the central axis;

[0026] At least a portion of the guide vane is connected between the first mounting body and the second mounting body.

[0027] Optionally, in some embodiments of this application, on a projection plane parallel to the central axis, the projection of the guide vane near the windward side protrudes beyond the projection of the first mounting body.

[0028] and / or

[0029] On a projection plane parallel to the central axis, the projection of the guide vane near the windward side protrudes beyond the projection of the second mounting body.

[0030] Optionally, in some embodiments of this application, the first mounting body has:

[0031] The first wall is located radially outside the flow channel;

[0032] The first wall surface is inclined relative to the central axis, and the diameter of the first wall surface gradually increases in the direction away from the windward side.

[0033] Optionally, in some embodiments of this application, the first included angle between the first wall surface and the central axis ranges from 10° to 30°.

[0034] Optionally, in some embodiments of this application, the second mounting body has:

[0035] The second wall is formed on the radial inner side of the flow channel;

[0036] The second wall surface is inclined relative to the central axis, and the diameter of the second wall surface gradually increases in the direction away from the windward side.

[0037] Optionally, in some embodiments of this application, the second included angle between the second wall surface and the central axis ranges from 10° to 30°.

[0038] Optionally, in some embodiments of this application, the second mounting body is formed as follows:

[0039] Installation space for accommodating at least a portion of the prime mover;

[0040] The flow channel is located radially outside the installation space.

[0041] Optionally, in some embodiments of this application, the second mounting body includes:

[0042] The fixing part is used to fix the prime mover.

[0043] The enclosure is located between the flow channel and the installation space;

[0044] The enclosure portion is arranged around the fixing portion.

[0045] Optionally, in some embodiments of this application, the fixing part has:

[0046] Mounting holes are provided for fasteners to pass through when connecting the prime mover;

[0047] The mounting hole penetrates the fixing part.

[0048] Optionally, in some embodiments of this application, the fixing part has:

[0049] The heat dissipation holes are connected to the mounting space.

[0050] The heat dissipation hole penetrates the fixing part.

[0051] Optionally, in some embodiments of this application, the second mounting body further forms:

[0052] A third wall is formed on the radially outer side of the installation space;

[0053] The third wall surface is inclined relative to the central axis, and the diameter of the third wall surface gradually increases in the direction away from the windward side.

[0054] Optionally, in some embodiments of this application, the third included angle between the third wall and the central axis ranges from 10° to 30°.

[0055] According to a second aspect of this application, an impeller is provided, including a hub as described above and a plurality of blades; the plurality of blades are spaced apart on the periphery of the hub.

[0056] Optionally, in some embodiments of this application, the hub body (A) is configured to rotate about a central axis (C1) under the drive of a prime mover, and the hub body includes:

[0057] At least two guide vanes are spaced apart circumferentially along the central axis;

[0058] The guide vanes are connected by a guide channel, and the guide vanes are installed in the same direction as the fan blades.

[0059] According to a third aspect of this application, a fan is also provided, including the impeller and prime mover as described above.

[0060] According to a fourth aspect of this application, a vehicle is also provided, including the fan described above.

[0061] In the wheel hub of this application embodiment, by setting a guide channel that runs through the wheel hub body in the through direction, the airflow on both sides of the wheel hub body is improved, and the airflow is used to carry away sand and dust, reducing the retention of sand and dust, thereby improving the sand removal effect.

[0062] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0064] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0065] Figure 1 This is an internal cross-sectional view of the impeller provided in an exemplary embodiment of this application;

[0066] Figure 2 This is a top view of the impeller structure provided in an exemplary embodiment of this application;

[0067] Figure 3 This is a bottom view of the impeller structure provided in an exemplary embodiment of this application;

[0068] Figure 4 This is an internal sectional view of the wheel hub provided in an exemplary embodiment of this application;

[0069] Figure 5 This is a top view of the hub structure provided in an exemplary embodiment of this application;

[0070] Figure 6 This is a bottom view of the wheel hub provided in an exemplary embodiment of this application;

[0071] Figure 7 This is a schematic diagram of the structure of the first type of guide vane and the second mounting body in the hub provided in an exemplary embodiment of this application;

[0072] Figure 8 This is a schematic diagram of the structure of the second type of guide vane and the second mounting body in the hub provided in an exemplary embodiment of this application;

[0073] Figure 9 This is a schematic diagram of the structure of another wheel hub provided in an exemplary embodiment of this application;

[0074] Figure 10 This is a schematic diagram of the arrangement of another guide vane in the hub provided in an exemplary embodiment of this application;

[0075] Figure 11 This is a schematic diagram of the overall structure of the vehicle provided in an exemplary embodiment of this application.

[0076] Explanation of reference numerals in the attached figures:

[0077] 100. Wheel hub;

[0078] A. Hub body; 100a. Airflow channel;

[0079] 110. Guide vanes;

[0080] 120. First mounting body; 121. First wall surface;

[0081] 130, Second mounting body; 130a, Second wall surface; 130b, Mounting space; 130c, Third wall surface;

[0082] 131. Fixing part; 131a. Boss; 131b. Mounting hole; 131c. Heat dissipation hole; 132. Enclosure part;

[0083] α, Installation angle; θ1, First spacing angle; θ2, Second spacing angle; β1, First included angle; β2, Second included angle; β3, Third included angle;

[0084] C1, central axis; D1, through direction; W1, first circumferential direction; W2, second circumferential direction;

[0085] S1, windward side; S2, leeward side;

[0086] 10. Impeller;

[0087] 210. Fan blade; 220. Leaf ring;

[0088] 1. Vehicles. Detailed Implementation

[0089] 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 protection scope of this application.

[0090] According to the first aspect of this application, referring to Figure 1 , Figures 4 to 6 This application provides a wheel hub 100, including a wheel hub body A. The wheel hub body A is used to mount and support fan blades 210 to drive the fan blades 210 to rotate. Since the wheel hub body A is also used to connect to the prime mover to transmit the power of the prime mover to the fan blades 210, the size of the wheel hub body A is generally designed to cover the prime mover. This results in poor airflow in the area blocked by the wheel hub body A, which easily causes sand and dust to accumulate.

[0091] In some embodiments of this application, reference is made to Figures 4 to 6 The hub body A has a flow channel for airflow to pass through; the flow channel passes through the hub body A along the through direction D1, so that the airflow flows from one side of the hub body A to the other side along the through direction D1.

[0092] It is understandable that one side of the wheel hub body A can be the windward side S1, and the other side can be the leeward side S2, allowing airflow to flow from the windward side S1 to the leeward side S2 along the guide channel. Of course, the through direction D1 of the guide channel is also adaptively adjusted according to the design of the wheel hub body A. For example, the guide channel can also connect the periphery of the wheel hub body A and the leeward side S2, guiding part of the airflow between the fan blades 210 to the leeward side S2; or, the guide channel can also guide the airflow to the area between the wheel hub body A and the prime mover.

[0093] The airflow can be generated by the disturbance of the air on the windward side S1 and the leeward side S2 of the hub body A caused by the rotation of the fan blade 210, or it can be the airflow actively captured and guided by the hub body A itself when it rotates.

[0094] By using the above technical solution, by setting a guide channel that runs through the hub body A along the through direction D1, the airflow on both sides of the hub body A is improved, and the airflow is used to carry away sand and dust, reducing the sand and dust retention caused by the obstruction of the hub body A, thereby improving the sand removal effect.

[0095] In some embodiments of this application, reference is made to Figure 4 and Figure 7 The hub body A is configured to rotate around a central axis C1 under the drive of the prime mover; wherein the through direction D1 intersects the central axis C1 at an angle.

[0096] It should be noted that in this application, the axial direction can be the extension direction of the central axis C1, the circumferential direction can be the direction surrounding the central axis C1, and the radial direction can be the direction perpendicular to the central axis C1.

[0097] It is understandable that the wheel hub body A can be provided with multiple airflow channels, which are spaced apart in the circumferential direction. (Referring to...) Figure 4 The penetrating direction D1 of each guide channel intersects the axial inclination of the central axis C1; or, refer to Figure 7 The through-flow direction D1 of each guide channel intersects the circumferential axis C1 at an angle; or, the through-flow direction D1 of each guide channel intersects the central axis C1 at an angle in both the axial and circumferential directions.

[0098] The flow channel of this application can be a continuous annular channel in the circumferential direction, and the entire annular channel intersects the central axis C1 at an axial inclination.

[0099] In some specific implementations, the prime mover can be an electric motor, or a combination of an electric motor and a transmission, etc.

[0100] In some embodiments of this application, reference is made to Figures 4 to 7 The hub body A includes at least two guide vanes 110.

[0101] At least two guide vanes 110 are spaced apart in the circumferential direction of the central axis C1; wherein the guide vanes 110 are inclined relative to the central axis C1, and a guide channel is formed between adjacent guide vanes 110.

[0102] By adopting this scheme, the airflow can be effectively captured and guided by the guide vanes 110. When the hub body A rotates, the air enters the guide channel under the action of the guide vanes 110 and continues to accelerate through the guide channel under the action of the guide vanes 110, thereby increasing the airflow on the leeward side S2 of the hub body A, which can effectively separate the surrounding sand and dust from the air and accelerate the removal of sand and dust.

[0103] In some embodiments of this application, reference is made to Figure 7 The installation angle α of the guide vane 110 ranges from 55° to 75°.

[0104] It is understandable that the installation angle α of the guide vane 110 can be the angle between the blade chord of the guide vane 110 and the plane of rotation of the hub body A. Using such an installation angle α can optimize the airflow guidance efficiency.

[0105] In some embodiments of this application, reference is made to Figure 7 and Figure 8 The guide vane 110 can be one of the following shapes: straight airfoil, curved airfoil, oblique airfoil, or aviation airfoil. Among them, the aviation airfoil can be a NACA series airfoil.

[0106] Specifically, Figure 7 The image shows a straight airfoil-type guide vane. Figure 8 The guide vanes of an airfoil are shown.

[0107] In some specific implementations, the installation angle α, blade shape, blade curvature, blade chord length, and blade thickness of each guide vane 110 are the same, which is beneficial to the processing of the guide vane 110.

[0108] In other specific embodiments, at least two guide vanes 110 have one or more different installation angles α, vane shapes, vane cambers, vane chord lengths, and vane thicknesses, thereby reducing the main frequency noise of the guide vanes 110, reducing resonance, or improving airflow.

[0109] In some embodiments of this application, the number of guide vanes 110 ranges from 8 to 12. More specifically, the number of guide vanes 110 can be an even number or a prime number. Of course, the number of guide vanes 110 can also be reduced or increased accordingly based on the diameter of the hub body A.

[0110] In some embodiments of this application, in the circumferential direction of the central axis C1, the guide vane 110 has a first spacing angle θ1 with the guide vane 110 adjacent to one side, and the guide vane 110 has a second spacing angle θ2 with the guide vane 110 adjacent to the other side; the difference between the first spacing angle θ1 and the second spacing angle θ2 ranges from 0° to 12°.

[0111] Understandably, referring to Figure 10 On a projection plane perpendicular to the central axis C1, the projected profile of the guide vane 110 has two edges spaced apart in the circumferential direction. The first spacing angle θ1 is the angle between the two adjacent edges of the guide vane 110 and another adjacent guide vane 110 in the first circumferential direction W1, and the second spacing angle θ2 is the angle between the two adjacent edges of the guide vane 110 and another adjacent guide vane 110 in the second circumferential direction W2. The first circumferential direction W1 and the second circumferential direction W2 are opposite.

[0112] In some specific embodiments, the difference between the first spacing angle θ1 and the second spacing angle θ2 is 0°, that is, the multiple guide vanes 110 on the hub 100 are evenly distributed in the circumferential direction, which is beneficial to the processing of the guide vanes 110.

[0113] In some other specific embodiments, the difference between the first spacing angle θ1 and the second spacing angle θ2 is greater than 0°, that is, the multiple guide vanes 110 on the hub 100 are not evenly distributed in the circumferential direction.

[0114] More specifically, the difference between the first spacing angle θ1 and the second spacing angle θ2 ranges from 3° to 12°, thereby reducing the main frequency noise of the guide vane 110.

[0115] In some embodiments of this application, reference is made to Figure 4 The hub body A has a windward side S1 and a leeward side S2 that are spaced apart in the axial direction; the airflow channel is configured to connect the windward side S1 and the leeward side S2 so as to guide the airflow from the windward side S1 to the leeward side S2 at least.

[0116] With this solution, when external sand or dust enters the windward side S1 during the vehicle 1's operation, the guide vane 110 rotates simultaneously with the wheel hub body A. Under the action of the rotational force of the guide vane 110, the sand and dust can be quickly and effectively discharged from the leeward side S2, so that the sand and dust do not accumulate in the guide channel.

[0117] In some embodiments of this application, reference is made to Figure 1 , Figures 4 to 6 The wheel hub body A includes: a first mounting body 120 and a second mounting body 130.

[0118] The first mounting body 120 is used to connect the fan blade 210; the second mounting body 130 forms a power coupling with the prime mover so that the second mounting body 130 can be driven to rotate by the prime mover; the first mounting body 120 is located on the radial outer side of the second mounting body 130, and a flow channel is formed between the first mounting body 120 and the second mounting body 130.

[0119] It is understood that the first mounting body 120 and the second mounting body 130 are fixedly connected, so that the first mounting body 120 can rotate synchronously with the second mounting body 130.

[0120] This design, through the placement of the first mounting body 120 and the second mounting body 130, isolates the airflow channel, preventing the irregular splashing of sand and dust carried in the airflow. Simultaneously, the airflow channel also reduces the weight of the wheel hub body A, decreasing the fan load.

[0121] In some specific embodiments, the first mounting body 120 and the second mounting body 130 can be connected by a rod or by a guide vane 110.

[0122] In some embodiments of this application, reference is made to Figures 4 to 6 At least a portion of the guide vane 110 is connected between the first mounting body 120 and the second mounting body 130. This arrangement ensures that the guide vane 110 not only exerts force on the airflow in the guide channel but also connects the first mounting body 120 and the second mounting body 130 into a single unit.

[0123] In some embodiments of this application, reference is made to Figure 9 On the projection plane parallel to the central axis C1, the projection of the guide vane 110 near the windward side S1 protrudes beyond the projection of the first mounting body 120. That is, the protruding part of the guide vane 110 is only connected to the second mounting body 130, and the second mounting body 130 provides support for this part of the guide vane 110.

[0124] By adopting this scheme, the working area of ​​the guide vane 110 can be expanded, and the airflow in the vicinity of the radial outer side of the first mounting body 120 can be captured, thereby increasing the effective flow area.

[0125] In some embodiments of this application, on a projection plane parallel to the central axis C1, the projection of the guide vane 110 near the windward side S1 protrudes beyond the projection of the second mounting body 130. That is, the protruding portion of the guide vane 110 is only connected to the first mounting body 120, and the first mounting body 120 provides support for this portion of the guide vane 110.

[0126] This design expands the working area of ​​the guide vane 110, allowing it to capture airflow in the radially inner region of the second mounting body 130 and increase the effective flow area.

[0127] In some embodiments of this application, on a projection plane parallel to the central axis C1, the projection of the guide vane 110 near the windward side S1 simultaneously protrudes from the projection of the first mounting body 120 and the projection of the second mounting body 130. This design expands the working area of ​​the guide vane 110, captures previously unused airflow near the hub body A, and increases the effective flow area.

[0128] In some other embodiments of this application, the end of the guide vane 110 near the windward side S1 can be flush with the first mounting body 120 and the second mounting body 130, and the end of the guide vane 110 near the leeward side S2 can also be flush with the first mounting body 120 and the second mounting body 130.

[0129] In some embodiments of this application, reference is made to Figure 4 The first mounting body 120 has: a first wall surface 121.

[0130] The first wall 121 is arranged radially outside the flow channel; wherein the first wall 121 is inclined relative to the central axis C1, and the diameter of the first wall 121 gradually increases in the direction away from the windward side S1.

[0131] In this design, the first wall 121 cooperates with the guide vane 110. When external sand or dust enters the guide channel during vehicle 1's movement, the guide vane 110 rotates simultaneously with the wheel hub body A. Under the action of rotational force and with the inclined first wall 121 reducing adhesion, sand and dust can be quickly and effectively discharged without accumulating in the guide channel.

[0132] In some embodiments of this application, reference is made to Figure 4 The first included angle β1 between the first wall surface 121 and the central axis C1 ranges from 10° to 30°. This angle parameter ensures rapid dust removal while preventing the hub body A from becoming too large.

[0133] In some embodiments of this application, reference is made to Figure 4 The second mounting body 130 has: a second wall surface 130a.

[0134] The second wall 130a is arranged radially inside the flow channel; the second wall 130a is inclined relative to the central axis C1, and the diameter of the second wall 130a gradually increases in the direction away from the windward side S1.

[0135] By adopting this design, the inclined design of the first wall surface 121 allows sand or dirt in the guide channel to disperse quickly, enabling the sand and dust to be discharged rapidly and effectively without accumulating in the guide channel. At the same time, the cooperation between the first wall surface 121 and the second wall surface 130a can prevent sand and dust from splashing irregularly during the rotation of the hub 100, and prevent sand and dust from remaining in the hub body A when the walls stop rotating.

[0136] In some embodiments of this application, reference is made to Figure 4 The second included angle β2 between the second wall surface 130a and the central axis C1 ranges from 10° to 30°. This angle parameter ensures rapid dust removal while preventing the hub body A from becoming too large.

[0137] In some embodiments of this application, reference is made to Figures 4 to 6 The second mounting body 130 has a mounting space 130b. The mounting space 130b is used to accommodate at least a portion of the prime mover; a flow channel is provided radially outward of the mounting space 130b.

[0138] It is understood that the prime mover in this application can be an electric motor. The second mounting body 130 forms an installation space 130b, which spatially isolates the flow channel and the motor, reducing the amount of sand and dust entering the installation space 130b and remaining in the motor. Simultaneously, the airflow in the flow channel can quickly remove heat from the second mounting body 130, indirectly assisting in the cooling of the prime mover and enhancing the cooling effect. Therefore, the prime mover in this application can be a high-power electric motor.

[0139] In some embodiments of this application, reference is made to Figure 4 The second mounting body 130 includes a fixing part 131 and a enclosure part 132.

[0140] The fixing part 131 is used to fix the prime mover; the enclosure part 132 is disposed between the flow channel and the installation space 130b; the enclosure part 132 is disposed around the fixing part 131.

[0141] It is understood that the guide vane 110 is connected between the enclosure portion 132 and the first mounting body 120.

[0142] With this solution, the enclosure 132 forms a natural sand barrier, isolating the flow channel and the installation space 130b, and reducing the amount of sand and dust entering the installation space 130b.

[0143] In some specific embodiments, the fixing part 131 is connected to the end of the enclosure part 132, so that the prime mover can be accommodated to a large extent in the installation space 130b.

[0144] In some embodiments of this application, reference is made to Figures 4 to 6 The fixing part 131 has a mounting hole 131b. The mounting hole 131b is for fasteners connecting the prime mover to pass through; the mounting hole 131b extends through the fixing part 131. By providing the mounting hole 131b, the prime mover can be fixed to the fixing part 131 with fasteners, and the assembly method is simple.

[0145] It is understood that the fastener can be a bolt, that is, the prime mover and the hub body A are relatively stationary, and the prime mover and the hub body A rotate around the drive shaft of the prime mover.

[0146] In some specific embodiments, a plurality of mounting holes 131b are spaced apart in the circumferential direction, and the included angle between two adjacent mounting holes 131b in the circumferential direction ranges from 90° to 180°. This included angle can be selected accordingly based on the hole arrangement on the prime mover. More specifically, the included angle between two adjacent mounting holes 131b in the circumferential direction is 120°.

[0147] In some embodiments of this application, reference is made to Figure 5 and Figure 6 The fixing part 131 has a heat dissipation hole 131c. The heat dissipation hole 131c communicates with the mounting space 130b and penetrates through the fixing part 131. The heat dissipation hole 131c further enhances the heat dissipation effect of the hub body A on the prime mover.

[0148] It is understandable that multiple heat dissipation holes 131c are spaced apart in the circumferential direction and are staggered from the heat dissipation structure on the prime mover in the circumferential direction to prevent sand and dust from directly entering the prime mover through the heat dissipation holes 131c and the heat dissipation structure.

[0149] In some specific implementation methods, refer to Figure 4 and Figure 6 The fixing part 131 is also provided with a boss 131a on the side near the installation space 130b. The mounting hole 131b passes through the boss 131a. The boss 131a supports the prime mover and creates a gap between the prime mover and the fixing part 131, which facilitates air circulation and improves heat dissipation.

[0150] In some embodiments of this application, reference is made to Figure 4 The second mounting body 130 also forms a third wall surface 130c.

[0151] The third wall 130c is arranged radially outside the installation space 130b; the third wall 130c is inclined relative to the central axis C1, and the diameter of the third wall 130c gradually increases in the direction away from the windward side S1.

[0152] By adopting this solution, the inclined design of the third wall 130c makes it difficult for sand and dust to accumulate in the installation space 130b, and allows it to be discharged in a timely and effective manner.

[0153] In some embodiments of this application, reference is made to Figure 4 The third included angle β3 between the third wall surface 130c and the central axis C1 ranges from 10° to 30°. This third included angle β3 is matched according to the diameter of the prime mover.

[0154] In some embodiments of this application, the values ​​of the first angle β1 between the first wall surface 121 and the central axis C1, the second angle β2 between the second wall surface 130a and the central axis C1, and the third angle β3 between the third wall surface 130c and the central axis C1 may be different.

[0155] According to the second aspect of this application, referring to Figures 1 to 3 An impeller 10 is provided, which includes the aforementioned hub 100 and a plurality of blades 210. The plurality of blades 210 are spaced apart around the periphery of the hub 100.

[0156] The impeller 10 has all the beneficial effects of the hub 100 described above, which will not be repeated here.

[0157] In some embodiments of this application, the fan blades 210 may also be arranged in a non-uniform circumferential manner to reduce resonance.

[0158] In some embodiments of this application, reference is made to Figure 2 and Figure 3 The installation direction of the guide vane 110 is the same as that of the fan blade 210.

[0159] It is understood that the installation direction of the guide vane 110 is the direction of rotation (e.g., left-hand or right-hand) at the connection between the guide vane 110 and the second mounting body 130, and the installation direction of the fan blade 210 is the direction of rotation (e.g., left-hand or right-hand) at the connection between the fan blade 210 and the first mounting body 120. The installation directions of the two are the same, that is, the rotation directions of the two are the same.

[0160] With this design, the guide vane 110 is installed facing the working direction of the fan blade 210. As a result, when the hub body A drives the fan blade 210 to rotate, the guide vane 110 will also rotate synchronously, doing work on the air and allowing the air to enter the leeward side S2 of the hub 100, thus accelerating the airflow on the leeward side S2 of the hub 100.

[0161] In some embodiments of this application, the impeller 10 further includes a blade ring 220. The blade ring 220 surrounds the outer side of the fan blade 210 and is fixedly connected to multiple fan blades 210 simultaneously, serving to support and protect the fan blades 210 and guide airflow.

[0162] According to a third aspect of this application, a fan is provided, comprising the impeller 10 described above and a prime mover. This fan possesses all the beneficial effects of the impeller 10 described above, which will not be elaborated further herein.

[0163] In some specific embodiments, the fan in this application may be an axial flow fan.

[0164] According to the fourth aspect of this application, referring to Figure 11 The present application provides a vehicle 1 that includes the aforementioned fan and has all the beneficial effects of the aforementioned fan, which will not be repeated here.

[0165] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions on it.

[0166] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0167] 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.

[0168] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0169] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A wheel hub, characterized in that, include: The hub body has a guide channel for airflow; The flow channel extends through the hub body along the penetration direction; The hub body is configured to rotate about a central axis under the drive of a prime mover; The hub body includes: At least two guide vanes are spaced apart circumferentially along the central axis; The guide vanes are inclined relative to the central axis, and a guide channel is formed between adjacent guide vanes.

2. The wheel hub according to claim 1, characterized in that, The penetrating direction intersects the central axis at an angle.

3. The wheel hub according to claim 2, characterized in that, The installation angle of the guide vane ranges from 55° to 75°.

4. The wheel hub according to claim 2, characterized in that, The shape of the guide vane is one of straight airfoil, curved airfoil, oblique airfoil, or aircraft airfoil.

5. The wheel hub according to claim 2, characterized in that, The number of guide vanes installed ranges from 8 to 12.

6. The wheel hub according to claim 2, characterized in that, In the circumferential direction of the central axis, the guide vane has a first spacing angle with the guide vane adjacent to one side, and the guide vane has a second spacing angle with the guide vane adjacent to the other side; The difference between the first spacing angle and the second spacing angle ranges from 0° to 12°.

7. The wheel hub according to any one of claims 1 to 6, characterized in that, The hub body has a windward side and a leeward side that are spaced apart in the axial direction; The airflow channel is configured to connect the windward side and the leeward side, so as to guide the airflow from the windward side to the leeward side.

8. The wheel hub according to claim 7, characterized in that, The hub body is configured to rotate about a central axis under the drive of a prime mover, and the hub body includes: The first mounting element is used to connect the fan blades; The second mounting body forms a power coupling with the prime mover; The first mounting body is disposed radially outside the second mounting body, and the flow channel is formed between the first mounting body and the second mounting body.

9. The wheel hub according to claim 8, characterized in that, The hub body includes: At least two guide vanes are spaced apart circumferentially along the central axis; At least a portion of the guide vane is connected between the first mounting body and the second mounting body.

10. The wheel hub according to claim 9, characterized in that, On a projection plane parallel to the central axis, the projection of the guide vane near the windward side protrudes beyond the projection of the first mounting body. and / or On a projection plane parallel to the central axis, the projection of the guide vane near the windward side protrudes beyond the projection of the second mounting body.

11. The wheel hub according to claim 8, characterized in that, The first mounting body has: The first wall is located radially outside the flow channel; The first wall surface is inclined relative to the central axis, and the diameter of the first wall surface gradually increases in the direction away from the windward side.

12. The wheel hub according to claim 11, characterized in that, The first included angle between the first wall surface and the central axis ranges from 10° to 30°.

13. The wheel hub according to claim 8, characterized in that, The second mounting body has: The second wall is formed on the radial inner side of the flow channel; The second wall surface is inclined relative to the central axis, and the diameter of the second wall surface gradually increases in the direction away from the windward side.

14. The wheel hub according to claim 13, characterized in that, The second included angle between the second wall surface and the central axis ranges from 10° to 30°.

15. The wheel hub according to claim 8, characterized in that, The second mounting body is formed of: Installation space for accommodating at least a portion of the prime mover; The flow channel is located radially outside the installation space.

16. The wheel hub according to claim 15, characterized in that, The second mounting body includes: The fixing part is used to fix the prime mover; The enclosure is located between the flow channel and the installation space; The enclosure portion is arranged around the fixing portion.

17. The wheel hub according to claim 16, characterized in that, The fixing part has: Mounting holes are provided for fasteners to pass through when connecting the prime mover; The mounting hole penetrates the fixing part.

18. The wheel hub according to claim 16, characterized in that, The fixing part has: The heat dissipation holes are connected to the mounting space. The heat dissipation hole penetrates the fixing part.

19. The wheel hub according to claim 15, characterized in that, The second mounting body also forms: A third wall is formed on the radially outer side of the installation space; The third wall surface is inclined relative to the central axis, and the diameter of the third wall surface gradually increases in the direction away from the windward side.

20. The wheel hub according to claim 19, characterized in that, The third included angle between the third wall surface and the central axis ranges from 10° to 30°.

21. An impeller, characterized in that, It includes a hub as described in any one of claims 1 to 20 and a plurality of fan blades; the plurality of fan blades are spaced apart on the periphery of the hub.

22. The impeller according to claim 21, characterized in that, The hub body includes: At least two guide vanes are spaced apart circumferentially along the central axis; The guide vanes are connected by a guide channel, and the guide vanes are installed in the same direction as the fan blades.

23. A fan, characterized in that, Includes the impeller and prime mover as described in any one of claims 21 to 22.

24. A vehicle, characterized in that, Includes the fan as described in claim 23.

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