Fan blade assembly and air outlet device with same

Abstract

The invention relates to the technical field of air outlet devices, and discloses a fan blade assembly and an air outlet device with the fan blade assembly, the fan blade assembly comprises a hub and a magnetic ring rotor, the hub is provided with a mounting groove, the magnetic ring rotor is arranged in the mounting groove, the axis of the magnetic ring rotor coincides with the axis of the hub, and the magnetic ring rotor and the hub are integrally formed through injection molding. According to the fan blade assembly, the magnetic ring rotor and the hub are integrally formed through injection molding, it can be ensured that the magnetic ring rotor and the hub are installed in place, the axis of the magnetic ring rotor and the axis of the hub are kept to coincide, and therefore the dynamic balance of the fan blade assembly during rotation is ensured, and shaking is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air outlet devices, and in particular to a fan blade assembly and an air outlet device having the same. Background Art

[0002] The fan and other air outlet devices do not have an output shaft to connect the fan blades, but drive the fan blades to rotate by fixing the magnetic ring rotor to the fan blades. In the existing production process, the fan blades are often separately injection molded, and then the magnetic ring rotor is pressed into the hub of the fan blade through a tool. In this process, due to differences in tools or techniques, it is easy to cause the magnetic ring rotor to be skewed during the press-fitting, causing the axis of the magnetic ring rotor and the axis of the fan blade hub to not coincide, or the magnetic ring rotor press-fitting stroke is not in place, which will affect the dynamic balance of the fan blades and the fan drive performance, causing the fan to shake and fail to achieve the expected drive performance. Summary of the invention

[0003] In view of this, the present invention provides a fan blade assembly and an air outlet device having the same, so as to solve the problem that the existing air outlet device causes lateral deviation or inadequate stroke due to the press-fitting of the magnetic ring rotor, which affects the dynamic balance of the fan blade and the driving performance of the fan, causing the entire fan to vibrate and fail to achieve the expected driving performance.

[0004] A first aspect of the present invention provides a fan blade assembly, including a hub and a magnetic ring rotor, wherein the hub has a mounting groove, the magnetic ring rotor is arranged in the mounting groove, the axis of the magnetic ring rotor coincides with the axis of the hub, and the magnetic ring rotor and the hub are integrally injection molded.

[0005] Beneficial effect: The fan blade assembly of the present application can ensure that the installation position between the magnetic ring rotor and the hub is in place by adopting one-piece injection molding between the magnetic ring rotor and the hub, so that the axis of the magnetic ring rotor and the axis of the hub remain coincident, thereby ensuring the dynamic balance of the fan blade assembly during rotation and reducing jitter.

[0006] In some embodiments, a first limiting portion is provided at a notch opening of the installation slot extending toward the interior of the installation slot, and the first limiting portion abuts against a side of the magnetic ring rotor facing the notch opening of the installation slot.

[0007] Beneficial effect: A first limiting portion is provided at the notch of the mounting groove, and the first limiting portion can abut against the side of the notch of the mounting groove facing the magnetic ring rotor to limit the magnetic ring rotor in the mounting groove of the wheel hub, thereby preventing the magnetic ring rotor from falling out of the wheel hub or becoming loose due to the centrifugal force of rotation.

[0008] In some embodiments, the first limiting portion is arranged in a circumferential ring around the magnetic ring rotor.

[0009] Beneficial effect: By arranging the first limiting portion in a ring shape around the circumference of the magnetic ring rotor, the abutment area of ​​the first limiting portion on the magnetic ring rotor can be increased, that is, the first limiting portion abuts and limits the circumference of the magnetic ring rotor, thereby enhancing the limiting of the magnetic ring rotor.

[0010] In some embodiments, a second limiting portion is provided at the bottom of the mounting slot and extends toward the slot opening of the mounting slot, and the second limiting portion abuts against a side of the magnetic ring rotor facing the bottom of the mounting slot.

[0011] Beneficial effect: By setting a second limiting portion at the bottom of the installation groove, the second limiting portion can abut and limit the side of the magnetic ring rotor toward the bottom of the installation groove, thereby ensuring the axial installation position of the magnetic ring rotor and further improving the installation accuracy of the magnetic ring rotor.

[0012] In some embodiments, the second limiting portion is arranged in a circumferential ring around the magnetic ring rotor.

[0013] Beneficial effect: By arranging the second limiting portion in a ring shape around the circumference of the magnetic ring rotor, the second limiting portion can abut and limit the circumference of the magnetic ring rotor, thereby ensuring that the axial position of the magnetic ring rotor is stable.

[0014] In some embodiments, the fan blade assembly further includes a fan blade shaft, the fan blade shaft is located inside the magnetic ring rotor, and the fan blade shaft is fixed at the axis of the hub.

[0015] Beneficial effects: The fan blade shaft can facilitate the connection between the fan blade assembly and the external driving structure, and the fan blade shaft is located at the axis of the hub, so that the axes of the fan blade shaft, the magnetic ring rotor and the hub are consistent, ensuring the rotational balance performance of the fan blade assembly.

[0016] In some embodiments, the fan blade shaft, the magnetic ring rotor and the hub are integrally injection molded.

[0017] Beneficial effects: By integrally injecting the fan blade shaft, magnetic ring rotor and wheel hub, the relative positions of the three can be fixed, and the connection stability of the three can be ensured. In addition, integrally injecting the fan blade shaft, magnetic ring rotor and wheel hub can also reduce the installation process and installation parts.

[0018] In some embodiments, the fan blade assembly further includes a plurality of fan blades, and the plurality of fan blades are spaced apart along the circumference of the hub.

[0019] Beneficial effect: The rotation of the magnetic ring rotor drives the hub to rotate, and drives the multiple fan blades on the hub to rotate together, thereby enabling the fan blade assembly to discharge wind.

[0020] A second aspect of the present invention provides an air outlet device, comprising:

[0021] The machine head has an air outlet cover;

[0022] The fan blade assembly of the present invention is rotatably arranged inside the air outlet cover.

[0023] Beneficial effects: Since the air outlet device of the present application includes the fan blade assembly of the present application, the air outlet device of the present application has all the beneficial effects of the fan blade assembly, which will not be repeated here.

[0024] In some embodiments, the fan blade assembly includes a hub, a magnetic ring rotor located in a mounting groove of the hub, and a fan blade shaft located inside the magnetic ring rotor, and the axes of the hub, the magnetic ring rotor and the fan blade shaft coincide with each other;

[0025] The air outlet device further comprises a stator assembly, which is sleeved on the fan blade shaft, and there is a clearance fit between the stator assembly and the magnetic ring rotor.

[0026] Beneficial effect: When the stator assembly is energized, a magnetic field is generated, which interacts with the magnetic field of the magnetic ring rotor, thereby driving the magnetic ring rotor to rotate, and then driving the hub and the fan blade shaft that are integrally injection molded with the magnetic ring rotor to rotate together, thereby driving the multiple fan blades connected to the hub to rotate together, realizing the air outlet of the air outlet device.

[0027] In some embodiments, the stator assembly comprises:

[0028] A bracket is fixedly connected to the machine head, a mounting column is extended from one side of the bracket toward the fan blade assembly, an axial hole is arranged inside the mounting column, and the fan blade shaft can be rotatably matched with the axial hole;

[0029] The stator winding is sleeved on the mounting column, and the stator winding is located between the magnetic ring rotor and the fan blade shaft, and there is a clearance fit between the stator winding and the magnetic ring rotor.

[0030] Beneficial effect: The bracket can support the stator winding, and the blade shaft of the blade assembly can be rotatably matched with the axial hole of the mounting column of the bracket, so that the blade assembly can be installed on the bracket. Therefore, the bracket can play a role in installation support for the stator winding and the blade assembly, ensuring the compactness of the structure.

[0031] In some embodiments, the stator assembly further includes a bearing, and the blade shaft can be rotatably engaged with the shaft hole of the mounting column through the bearing.

[0032] Beneficial effect: The provided bearing can further reduce the friction resistance between the fan blade shaft and the bracket during rotation, so as to improve the rotation smoothness of the fan blade assembly and reduce energy loss.

[0033] In some embodiments, the machine head further includes an axial adjustment member, which is sleeved on the fan blade shaft and located at both ends of the bearing. The axial adjustment member can move along the axial direction of the fan blade shaft.

[0034] Beneficial effect: The axial adjustment piece is sleeved on the fan blade shaft, and the axial adjustment piece is located at both ends of the bearing. When the installation position of the fan blade assembly needs to be adjusted, the axial adjustment piece is moved along the axial direction of the fan blade shaft, so that the fan blade shaft can move along the axial direction, thereby realizing the adjustment of the relative position between the fan blade assembly and the stator assembly, and ensuring the installation accuracy of the fan blade assembly.

[0035] In some embodiments, the machine head further includes a retaining spring, and the retaining spring is sleeved on the portion of the fan blade shaft passing through the bearing.

[0036] Beneficial effect: A retaining spring is further provided, and is sleeved on the part of the fan blade shaft passing through the bearing. When the fan blade shaft tends to slip out of the bearing, the fan blade shaft will drive the retaining spring to move toward the bearing, so that the retaining spring can abut against the end of the bearing, thereby preventing the fan blade shaft from slipping out of the bearing, thereby ensuring the structural assembly stability between the fan blade shaft and the bearing.

[0037] In some embodiments, the head further includes a seal, which is disposed in the axial hole of the mounting column, and the seal is located at an end of the bearing away from the fan blade assembly, and the gap between the seal and the bearing forms a lubrication cavity.

[0038] Beneficial effects: Lubricant is stored in the lubrication cavity, and the lubricant is used to lubricate the bearing, reduce the friction between the fan blade shaft and the bearing, thereby reducing the rotational resistance of the fan blade assembly and improving the smoothness of the rotation of the fan blade shaft. The seal is used to seal the lubricant in the lubrication cavity to prevent the lubricant from leaking out of the lubrication cavity.

[0039] In some embodiments, the air outlet device further includes:

[0040] A base, arranged below the machine head;

[0041] A connecting portion is used to connect the head and the base.

[0042] Beneficial effect: The base supports and fixes the machine head, which is mainly used to stabilize the whole machine. The connecting part connects the base and the machine head to ensure the installation stability of the machine head on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of the three-dimensional structure of a fan blade assembly according to an embodiment of the present invention;

[0045] Figure 2 is a cross-sectional view of a fan blade assembly according to an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the overall structure of an air outlet device according to an embodiment of the present invention;

[0047] Figure 4 is an overall cross-sectional view of an air outlet device according to an embodiment of the present invention;

[0048] Figure 5 A partial cross-sectional view of an air outlet device according to an embodiment of the present invention.

[0049] Description of Reference Numerals

[0050] 1. fan blade assembly; 11. wheel hub; 111. mounting groove; 112. first limiting portion; 113. second limiting portion; 12. magnetic ring rotor; 13. fan blade shaft; 14. fan blade;

[0051] 2. Machine head; 21. Air outlet cover; 22. Axial adjustment part; 23. Circlip; 24. Sealing part;

[0052] 3. stator assembly; 31. bracket; 311. mounting column; 3111. shaft hole; 3112. lubrication cavity; 32. stator winding; 33. bearing;

[0053] 4. Base;

[0054] 5. Connection part. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0059] Combine the following Figures 1 to 5 , describing an embodiment of the present invention.

[0060] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, on the one hand, a fan blade assembly 1 is disclosed, including a hub 11 and a magnetic ring rotor 12, wherein the hub 11 has a mounting groove 111, the magnetic ring rotor 12 is arranged in the mounting groove 111, the axis of the magnetic ring rotor 12 coincides with the axis of the hub 11, and the magnetic ring rotor 12 and the hub 11 are integrally injection molded.

[0061] The fan blade assembly 1 of the present application can ensure that the installation position between the magnetic ring rotor 12 and the hub 11 is in place by adopting integral injection molding between the magnetic ring rotor 12 and the hub 11, so that the axis of the magnetic ring rotor 12 and the axis of the hub 11 remain coincident, thereby ensuring the dynamic balance of the fan blade assembly 1 during rotation and reducing jitter.

[0062] The hub 11 is a very important component of the fan assembly 1. The hub 11 is used to connect the fan shaft 13 and the plurality of fan blades 14. The hub 11 can transfer kinetic energy to the fan blades 14 to drive the fan blades 14 to rotate synchronously. The hub 11 can also transfer the load of the wind force on the fan blades 14 to the fan shaft 13.

[0063] The mounting groove 111 is specifically configured as a circular groove. The mounting groove 111 is opened at the center of the wheel hub 11 , and the center line of the mounting groove 111 coincides with the axis of the wheel hub 11 .

[0064] The magnetic ring rotor 12 is made of magnetic material and can rotate under the action of the stator assembly 3, thereby driving the hub 11 to rotate together, and driving the multiple fan blades 14 to rotate along with the hub 11, finally realizing the rotation of the fan blade assembly 1 to supply air.

[0065] It should be noted here that since the magnetic ring rotor 12 and the wheel hub 11 are integrally injection molded, the magnetic ring rotor 12 is arranged in the mounting groove 111 and the outer wall of the magnetic ring rotor 12 and the inner wall of the mounting groove 111 are interference fit. Since the center line of the mounting groove 111 coincides with the axis of the wheel hub 11, the magnetic ring rotor 12 is concentrically arranged with the mounting groove 111 after molding. Therefore, after the final injection molding, the axis of the magnetic ring rotor 12 coincides with the axis of the wheel hub 11.

[0066] Preferably, the depth of the mounting groove 111 is greater than or equal to the axial length of the magnetic ring rotor 12 .

[0067] This arrangement allows the magnetic ring rotor 12 to be completely disposed inside the mounting groove 111 , thereby improving the structural coordination stability between the magnetic ring rotor 12 and the hub 11 , while also preventing the magnetic ring rotor 12 from being exposed from the mounting groove 111 and affecting the assembly of the fan blade assembly 1 and other structures.

[0068] like Figure 2 As shown, in some embodiments, a first limiting portion 112 is extended from the notch of the installation slot 111 toward the inside of the installation slot 111 , and the first limiting portion 112 abuts against one side of the notch of the magnetic ring rotor 12 facing the installation slot 111 .

[0069] A first limiting portion 112 is provided at the slot of the mounting slot 111. The first limiting portion 112 can abut against the side of the slot of the magnetic ring rotor 12 facing the mounting slot 111 to limit the magnetic ring rotor 12 in the mounting slot 111 of the wheel hub 11, thereby preventing the magnetic ring rotor 12 from escaping from the wheel hub 11 or becoming loose due to the centrifugal force of rotation.

[0070] It is understandable that when the magnetic ring rotor 12 and the wheel hub 11 rotate as a whole, under the action of the rotating centrifugal force, the magnetic ring rotor 12 has a tendency to move toward the notch of the mounting groove 111. Long-term operation may cause the magnetic ring rotor 12 to slip out of the mounting groove 111 or become loose. Based on this, the present application provides a first limiting portion 112 at the notch of the mounting groove 111 to abut and limit the magnetic ring rotor 12, so as to prevent the magnetic ring rotor 12 from slipping out of the mounting groove 111, thereby ensuring the position reliability of the magnetic ring rotor 12 during use.

[0071] In some embodiments, the first limiting portion 112 is disposed in a circumferential ring shape around the magnetic ring rotor 12 .

[0072] By arranging the first limiting portion 112 in a circumferential ring shape around the magnetic ring rotor 12 , the contact area of ​​the first limiting portion 112 on the magnetic ring rotor 12 can be increased, that is, the first limiting portion 112 abuts and limits the magnetic ring rotor 12 in the circumferential direction, thereby enhancing the limiting of the magnetic ring rotor 12 .

[0073] Specifically, the first limiting portion 112 is an annular protrusion arranged along the inner wall of the mounting groove 111, and the inner diameter of the annular protrusion is larger than the inner diameter of the magnetic ring rotor 12, and the inner diameter of the annular protrusion is smaller than the outer diameter of the magnetic ring rotor 12, so that the annular protrusion can wrap and limit the circumference of the magnetic ring rotor 12, so that the magnetic ring rotor 12 fits tightly in the mounting groove 111.

[0074] In this embodiment, a side of the first limiting portion 112 away from the magnetic ring rotor 12 is flush with the end surface of the hub 11 .

[0075] In some embodiments, a second limiting portion 113 is provided at the bottom of the installation slot 111 and extends toward the slot opening of the installation slot 111 . The second limiting portion 113 abuts against one side of the magnetic ring rotor 12 facing the bottom of the installation slot 111 .

[0076] By setting a second limiting portion 113 at the bottom of the installation groove 111, the second limiting portion 113 can abut and limit the magnetic ring rotor 12 on one side toward the bottom of the installation groove 111, thereby ensuring the axial installation position of the magnetic ring rotor 12 and further improving the installation accuracy of the magnetic ring rotor 12.

[0077] In some embodiments, the second limiting portion 113 is arranged in a circumferential ring shape around the magnetic ring rotor 12 .

[0078] By arranging the second limiting portion 113 in a ring shape around the circumference of the magnetic ring rotor 12 , the second limiting portion 113 can abut and limit the circumference of the magnetic ring rotor 12 , thereby ensuring that the axial position of the magnetic ring rotor 12 is stable.

[0079] Similar to the structural setting of the first limiting portion 112, specifically, the second limiting portion 113 is an annular protrusion arranged along the inner wall of the mounting groove 111, the inner diameter of the annular protrusion is larger than the inner diameter of the magnetic ring rotor 12, and the inner diameter of the annular protrusion is smaller than the outer diameter of the magnetic ring rotor 12, so that the annular protrusion can limit the bottom circumference of the magnetic ring rotor 12.

[0080] Compared with the prior art that directly presses the magnetic ring rotor 12 into the mounting groove 111, the present application achieves clamping the magnetic ring rotor 12 in the mounting groove 111 through the cooperation of the first limiting portion 112 and the second limiting portion 113, thereby enhancing the installation stability of the magnetic ring rotor 12 and greatly reducing the probability of it falling out of the mounting groove 111.

[0081] The second limiting portion 113 serves to axially position the magnetic ring rotor 12 , ensuring that the relative positions of the magnetic ring rotor 12 , the hub 11 and the fan blades 14 are accurate, thereby ensuring that the axial overlap length of the magnetic ring rotor 12 and the stator assembly 3 is accurate.

[0082] like Figure 1 and Figure 2 As shown, in some embodiments, the fan blade assembly 1 further includes a fan blade shaft 13 . The fan blade shaft 13 is located inside the magnetic ring rotor 12 . The fan blade shaft 13 is fixed to the axis of the hub 11 .

[0083] The fan blade shaft 13 can facilitate the connection between the fan blade assembly 1 and the external driving structure, and the fan blade shaft 13 is located at the axis of the hub 11, so that the axes of the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11 are consistent, ensuring the rotational balance performance of the fan blade assembly 1.

[0084] Specifically, a mounting hole is provided at the center of the mounting groove 111, and the end of the fan blade shaft 13 is disposed in the mounting hole.

[0085] In terms of setting dimensions, the length of the fan blade shaft 13 is less than or equal to the depth of the installation groove 111, so that the fan blade shaft 13 is completely located inside the installation groove 111 and does not extend out of the installation groove 111, thereby avoiding the axial length of the fan blade shaft 13 being too long and causing interference with the installation of other structures.

[0086] In some embodiments, the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11 are integrally injection molded.

[0087] By integrally injecting the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11, the relative positions of the three can be fixed, and the connection stability of the three can be ensured. In addition, the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11 are integrally injected, which can also reduce the installation process and installation parts.

[0088] It should be noted that during injection molding, the hub 11 and the fan blade shaft 13 can be injection molded together first, and then the injected hub 11 and the fan blade shaft 13 are placed as a whole in the injection mold of the magnetic ring rotor 12, and then the magnetic ring rotor 12 is injection molded, thereby realizing the integrated injection molding of the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11.

[0089] Of course, the magnetic ring rotor 12 may be injection molded first, and then the molded magnetic ring rotor 12 may be placed in an injection mold of the hub 11 and the fan blade shaft 13, and then the hub 11 and the fan blade shaft 13 may be injection molded again, thereby realizing the integral injection molding of the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11.

[0090] In some embodiments, the fan blade assembly 1 further includes a plurality of fan blades 14 , and the plurality of fan blades 14 are arranged at intervals along the circumference of the hub 11 .

[0091] The rotation of the magnetic ring rotor 12 drives the hub 11 to rotate, and drives the plurality of fan blades 14 on the hub 11 to rotate together, thereby enabling the fan blade assembly 1 to discharge wind.

[0092] The fan blades 14 can disturb the air to make it flow in a specific direction, thereby achieving wind outlet.

[0093] Specifically, the fan blades 14 can be arranged in three, and the three fan blades 14 are evenly spaced and distributed in the circumference of the hub 11 to ensure the air output of the fan blade assembly 1 while reducing the installation cost of the fan blades 14 .

[0094] Of course, in other embodiments, the number of the fan blades 14 can be set as needed and is not limited to the solution in this embodiment. For example, the fan blades 14 can also be set to four, five, etc.

[0095] Specifically, the fan blades 14 and the wheel hub 11 are integrally injection molded, which can ensure the connection reliability between the fan blades 14 and the wheel hub 11, and can also make the fan blades 14 and the wheel hub 11 integrally manufactured and molded, thereby simplifying the production process.

[0096] In terms of specific materials, the fan blades 14 and the hub 11 are both made of plastic, which can reduce the overall weight of the fan blade assembly 1 and reduce the energy consumption when the fan blade assembly 1 rotates.

[0097] like Figures 3 to 5 As shown, according to an embodiment of the present invention, on the other hand, an air outlet device is disclosed, including a head 2 and a fan blade assembly 1 of the present invention, wherein the head 2 has an air outlet cover 21, and the fan blade assembly 1 is rotatably arranged inside the air outlet cover 21.

[0098] Since the air outlet device of the present application includes the fan blade assembly 1 of the present application, the air outlet device of the present application has all the beneficial effects of the fan blade assembly 1, and this embodiment will not be described in detail here.

[0099] The air outlet cover 21 has a grille structure, which can evenly distribute the air blown out by the internal fan blade assembly 1, thereby improving the air outlet uniformity of the air outlet device and enhancing the user experience.

[0100] In some embodiments, the fan blade assembly 1 includes a hub 11, a magnetic ring rotor 12 located in a mounting groove 111 of the hub 11, and a fan blade shaft 13 located inside the magnetic ring rotor 12, and the axes of the hub 11, the magnetic ring rotor 12, and the fan blade shaft 13 coincide. The air outlet device also includes a stator assembly 3, which is sleeved on the fan blade shaft 13, and the stator assembly 3 and the magnetic ring rotor 12 are clearance-matched.

[0101] When the stator assembly 3 is energized, a magnetic field is generated, which interacts with the magnetic field of the magnetic ring rotor 12, thereby driving the magnetic ring rotor 12 to rotate, and then driving the hub 11 and the fan shaft 13 that are integrally injection molded with the magnetic ring rotor 12 to rotate together, thereby driving the multiple fan blades 14 connected to the hub 11 to rotate together, realizing the air outlet of the air outlet device.

[0102] In some embodiments, the stator assembly 3 includes a bracket 31 and a stator winding 32, wherein the bracket 31 is fixedly connected to the machine head 2, a mounting column 311 is extended from one side of the bracket 31 toward the fan blade assembly 1, an axial hole 3111 is provided inside the mounting column 311, the fan blade shaft 13 can be rotatably engaged with the axial hole 3111, the stator winding 32 is sleeved on the mounting column 311, and the stator winding 32 is located between the magnetic ring rotor 12 and the fan blade shaft 13, and there is a clearance fit between the stator winding 32 and the magnetic ring rotor 12.

[0103] The bracket 31 can support the stator winding 32, and the blade shaft 13 of the blade assembly 1 can be rotatably matched with the shaft hole 3111 of the mounting column 311 of the bracket 31, so that the blade assembly 1 is installed on the bracket 31. Therefore, the bracket 31 can play a role in installation support for the stator winding 32 and the blade assembly 1, ensuring the compactness of the structure.

[0104] The bracket 31 and the machine head 2 can be fixedly connected by bolts to facilitate the installation and removal of the bracket 31 and the machine head 2. Of course, it is not limited to this. For example, the bracket 31 and the machine head 2 can also be fixed by structures such as buckles and pins.

[0105] The stator winding 32 is located inside the magnetic ring rotor 12 , and the stator winding 32 is arranged around the mounting column 311 for a circle, so as to facilitate better matching between the stator winding 32 and the magnetic ring rotor 12 .

[0106] like Figure 4 and Figure 5 As shown, in some embodiments, the stator assembly 3 further includes a bearing 33 , and the fan blade shaft 13 can be rotatably matched with the shaft hole 3111 of the mounting column 311 through the bearing 33 .

[0107] The bearing 33 can further reduce the friction resistance between the fan shaft 13 and the bracket 31 during rotation, so as to improve the rotation smoothness of the fan blade assembly 1 and reduce energy loss.

[0108] Specifically, the diameter of the bearing 33 matches the shaft hole 3111 of the mounting column 311, so that the bearing 33 is matched and assembled in the shaft hole 3111, thereby preventing the bearing 33 from radially moving in the shaft hole 3111 during the operation of the air outlet device, thereby ensuring the smooth operation of the air outlet device.

[0109] In some embodiments, the machine head 2 further includes an axial adjustment member 22 , which is sleeved on the fan blade shaft 13 and located at both ends of the bearing 33 . The axial adjustment member 22 can move along the axial direction of the fan blade shaft 13 .

[0110] The axial adjustment member 22 is sleeved on the fan blade shaft 13, and the axial adjustment member 22 is located at both ends of the bearing 33. When the installation position of the fan blade assembly 1 needs to be adjusted, the axial adjustment member 22 is moved axially along the fan blade shaft 13, so that the fan blade shaft 13 can move axially, thereby realizing the adjustment of the relative position between the fan blade assembly 1 and the stator assembly 3, and ensuring the position installation accuracy of the fan blade assembly 1.

[0111] Specifically, when the fan blade assembly 1 needs to be moved and adjusted toward the side away from the bracket 31, the axial adjustment member 22 on the side close to the bracket 31 is moved toward the bracket 31, and then the fan blade shaft 13 is pulled to move in the direction of escaping from the bearing 33, thereby driving the fan blade assembly 1 as a whole to move toward the side away from the bracket 31. After the adjustment is completed, the axial adjustment member 22 on the side away from the bracket 31 is moved toward the bracket 31 until it abuts against the end of the bearing 33.

[0112] On the contrary, when the fan blade assembly 1 needs to be moved and adjusted toward the side close to the bracket 31, the axial adjustment piece 22 on the side away from the bracket 31 is moved in the direction away from the bracket 31, and then the fan blade shaft 13 is pushed to move in the direction of the inserted bearing 33, thereby driving the entire fan blade assembly 1 to move along the side close to the bracket 31. After the adjustment is completed, the axial adjustment piece 22 on the side close to the bracket 31 is moved in the direction away from the bracket 31 until it abuts against the end of the bearing 33.

[0113] In terms of specific structural form, the axial adjustment member 22 can be a rubber ring, which is elastically sleeved on the fan shaft 13 .

[0114] In some embodiments, the machine head 2 further includes a retaining spring 23 , which is sleeved on the portion of the fan shaft 13 that passes through the bearing 33 .

[0115] A retaining spring 23 is further provided, and the retaining spring 23 is sleeved on the part of the fan blade shaft 13 that passes through the bearing 33. When the fan blade shaft 13 tends to slip out of the bearing 33, the fan blade shaft 13 will drive the retaining spring 23 to move toward the bearing 33, so that the retaining spring 23 can abut against the end of the bearing 33, so that the fan blade shaft 13 will not slip out of the bearing 33, thereby ensuring the structural assembly stability between the fan blade shaft 13 and the bearing 33.

[0116] Specifically, a clamping groove is provided in a circumferential ring shape on the fan shaft 13, and the clamping spring 23 is clamped and fixed in the clamping groove.

[0117] The provision of the clamping groove can position the position of the clamping spring 23 , which can not only improve the installation accuracy of the position of the clamping spring 23 , but also prevent the clamping spring 23 from shifting along the axial direction of the fan shaft 13 .

[0118] In some embodiments, the head 2 also includes a seal 24, which is disposed in the shaft hole 3111 of the mounting column 311, and the seal 24 is located at one end of the bearing 33 away from the wind blade assembly 1, and the gap between the seal 24 and the bearing 33 forms a lubrication cavity 3112.

[0119] Lubricant is stored in the lubrication chamber 3112, and the lubricant is used to lubricate the bearing 33, reduce the friction between the fan blade shaft 13 and the bearing 33, thereby reducing the rotational resistance of the fan blade assembly 1 and improving the smoothness of rotation of the fan blade shaft 13. The seal 24 is used to seal the lubricant in the lubrication chamber 3112 to prevent the lubricant from leaking out of the lubrication chamber 3112.

[0120] Specifically speaking, a limiting groove is provided on the inner wall of the shaft hole 3111 of the mounting column 311 , and the sealing member 24 is provided in the limiting groove.

[0121] The limiting groove positions the installation position of the seal 24 , and at the same time, the limiting groove also limits the seal 24 from moving toward the bearing 33 and squeezing the lubrication cavity 3112 , thereby ensuring the space of the lubrication cavity 3112 .

[0122] Exemplarily, the sealing member 24 may be a sponge, and the sponge is interference-fitted in the shaft hole 3111 of the mounting column 311, but the invention is not limited thereto. In other embodiments, the sealing member 24 may be configured as required, as long as it can play a sealing role.

[0123] like Figure 3 and Figure 4 As shown, in some embodiments, the air outlet device further includes a base 4 and a connecting portion 5, wherein the base 4 is disposed below the head 2, and the connecting portion 5 is used to connect the head 2 and the base 4.

[0124] The base 4 supports and fixes the machine head 2 , and its main function is to stabilize the whole machine. The connecting part 5 connects the base 4 and the machine head 2 , and ensures the installation stability of the machine head 2 on the base 4 .

[0125] The shape of the base 4 can be circular, elliptical or geometric, and can be set as needed. In this embodiment, for the convenience of description, the base 4 is set as a circle for exemplary description.

[0126] The base 4 is set to be circular, and the middle of the upper surface of the base 4 is concave and lower than the height of the edge of the base 4, so that a concave space for stabilizing the head 2 is formed on the upper surface of the base 4.

[0127] The base 4 has a certain height, which can increase the height of the head 2, thereby increasing the air outlet height of the air outlet device. Therefore, the air outlet height of the entire air outlet device can be controlled by designing the height of the base 4.

[0128] Specifically, the height of the base 4 can be set as required, and the design is specifically based on the user's requirements for the use height of the air outlet device.

[0129] The connecting portion 5 may specifically be a connecting pipe, which can not only connect the machine head 2 and the base 4, but also reduce the weight of the entire machine.

[0130] Preferably, the connecting portion 5 and the machine head 2 can be rotatably connected.

[0131] With the above arrangement, the head 2 can be rotated relative to the connecting portion 5, so as to adjust the air outlet angle of the air outlet device to meet the user's demand for air outlet at different angles.

[0132] Exemplarily, as one of the preferred connection methods, a ball head is provided at the end of the connecting part 5, and the head 2 is provided with a ball head groove, and the ball head is movably arranged in the ball head groove, so that the head 2 can rotate freely relative to the connecting part 5, thereby realizing the adjustment of the air outlet angle.

[0133] To facilitate understanding of the air outlet device of this embodiment, the assembly and working process of the air outlet device are now described as follows in conjunction with the accompanying drawings of the specification:

[0134] Assembly of the air outlet device: the fan blade shaft 13, the magnetic ring rotor 12, the fan blade 14, and the hub 11 are integrally injection molded to form a fan blade assembly 1 (rotor); the bearing 33, the stator winding 32 and the bracket 31 are integrally injection molded or press-fitted to form a stator assembly 3; one of the axial adjustment parts 22 is inserted into the fan blade shaft 13 and pushed to contact the end surface of the fan blade assembly 1; then the axial hole 3111 of the mounting column 311 of the bracket 31 is aligned with the fan blade shaft 13 and inserted to the bottom; another axial adjustment part 22 is inserted; and then the retaining spring 23 is inserted into the retaining groove of the fan blade shaft 13 to complete the fixation; finally, a lubricant (such as lubricating oil) is added into the lubrication cavity 3112, and a seal 24 (such as a sponge) is inserted to complete the oil sealing to prevent the lubricant in the lubrication cavity 3112 from leaking.

[0135] Working of the air outlet device: After the stator winding 32 is energized, a magnetic field is generated, which interacts with the magnetic field of the magnetic ring rotor 12, thereby driving the magnetic ring rotor 12 to rotate, and then driving the hub 11, fan blades 14 and other structures fixed to the magnetic ring rotor 12 to rotate integrally, so that the fan blades 14 cut the airflow to achieve the air outlet of the air outlet device.

[0136] To sum up, the present application has the following advantages: the fan blade shaft 13, the magnetic ring rotor 12 and the hub 11, and the fan blade 14 are integrally injection-molded to form the fan blade assembly 1. Compared with the existing production scheme of "after the fan blade 14 and the fan blade shaft 13 are integrally injection-molded, the magnetic ring rotor 12 is press-fitted and fixed to the hub 11 of the fan blade 14", the present application will not cause the magnetic ring rotor 12 and the fan blade 14 hub 11 to be out of axial alignment due to differences in pressing tools or manual techniques, resulting in poor dynamic balance of the fan blade assembly 1 or poor consistency of the pressing stroke, resulting in differences in the driving performance of the air outlet device (such as the power, current, speed, etc. of the fan).

[0137] It should be noted that in this embodiment, the descriptions of the shape, size, and quantity of the relevant structures are all exemplary descriptions and are not to be construed as limitations on the scope of protection of the present application. Those skilled in the art can adjust parameters such as shape, size, and quantity as needed, and are not limited to this embodiment.

[0138] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A fan blade assembly, characterized in that: include: A wheel hub (11) having a mounting groove (111); The magnetic ring rotor (12) is arranged in the mounting groove (111), the axis of the magnetic ring rotor (12) coincides with the axis of the wheel hub (11), and the magnetic ring rotor (12) and the wheel hub (11) are integrally injection molded.

2. The fan blade assembly according to claim 1, characterized in that: A first limiting portion (112) is provided at the notch opening of the installation slot (111) extending toward the interior of the installation slot (111), and the first limiting portion (112) abuts against a side of the notch opening of the magnetic ring rotor (12) facing the installation slot (111).

3. The fan blade assembly according to claim 2, characterized in that: The first limiting portion (112) is arranged in a ring shape around the circumference of the magnetic ring rotor (12).

4. The fan blade assembly according to claim 1, characterized in that: A second limiting portion (113) is provided at the bottom of the installation groove (111) extending toward the slot opening of the installation groove (111), and the second limiting portion (113) abuts against one side of the magnetic ring rotor (12) toward the bottom of the installation groove (111).

5. The fan blade assembly according to claim 4, characterized in that: The second limiting portion (113) is arranged in a ring shape around the circumference of the magnetic ring rotor (12).

6. The fan blade assembly according to any one of claims 1 to 5, characterized in that: The fan blade assembly (1) further comprises a fan blade shaft (13), wherein the fan blade shaft (13) is located inside the magnetic ring rotor (12), and the fan blade shaft (13) is fixed at the axis of the hub (11).

7. The fan blade assembly according to claim 6, characterized in that: The fan blade shaft (13), the magnetic ring rotor (12) and the wheel hub (11) are integrally injection molded.

8. The fan blade assembly according to any one of claims 1 to 5, characterized in that: The fan blade assembly (1) further comprises a plurality of fan blades (14), wherein the plurality of fan blades (14) are arranged at intervals along the circumference of the hub (11).

9. An air outlet device, characterized in that: include: The machine head (2) has an air outlet cover (21); The fan blade assembly (1) according to any one of claims 1 to 8, wherein the fan blade assembly (1) is rotatably arranged inside the air outlet cover (21).

10. The air outlet device according to claim 9, characterized in that: The fan blade assembly (1) comprises a wheel hub (11), a magnetic ring rotor (12) located in a mounting groove (111) of the wheel hub (11), and a fan blade shaft (13) located inside the magnetic ring rotor (12), wherein the axes of the wheel hub (11), the magnetic ring rotor (12) and the fan blade shaft (13) coincide with each other; The air outlet device further comprises a stator assembly (3), wherein the stator assembly (3) is sleeved on the fan blade shaft (13), and a clearance fit is provided between the stator assembly (3) and the magnetic ring rotor (12).

11. The air outlet device according to claim 10, characterized in that: The stator assembly (3) comprises: A bracket (31) is fixedly connected to the machine head (2); a mounting column (311) is extended from the bracket (31) toward one side of the fan blade assembly (1); an axial hole (3111) is provided inside the mounting column (311); and the fan blade shaft (13) can be rotatably matched with the axial hole (3111); The stator winding (32) is sleeved on the mounting column (311), and the stator winding (32) is located between the magnetic ring rotor (12) and the fan blade shaft (13), and there is a clearance fit between the stator winding (32) and the magnetic ring rotor (12).

12. The air outlet device according to claim 11, characterized in that: The stator assembly (3) further comprises a bearing (33), and the fan blade shaft (13) can be rotatably matched with the shaft hole (3111) of the mounting column (311) through the bearing (33).

13. The air outlet device according to claim 12, characterized in that: The machine head (2) further comprises an axial adjustment member (22), wherein the axial adjustment member (22) is sleeved on the fan blade shaft (13), and the axial adjustment member (22) is located at both ends of the bearing (33), and the axial adjustment member (22) can move along the axial direction of the fan blade shaft (13).

14. The air outlet device according to claim 12, characterized in that: The machine head (2) further comprises a retaining spring (23), wherein the retaining spring (23) is sleeved on the portion of the fan blade shaft (13) that passes through the bearing (33).

15. The air outlet device according to claim 12, characterized in that: The head (2) further comprises a sealing member (24), wherein the sealing member (24) is arranged in the shaft hole (3111) of the mounting column (311), and the sealing member (24) is located at an end of the bearing (33) away from the fan blade assembly (1), and the gap between the sealing member (24) and the bearing (33) forms a lubrication cavity (3112).

16. The air outlet device according to any one of claims 9 to 15, characterized in that: The air outlet device also includes: A base (4) is arranged below the machine head (2); A connecting portion (5) is used to connect the machine head (2) and the base (4).

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