Fan impeller structure

Abstract

The utility model relates to the technical field of fan impellers, in particular to a fan impeller structure which comprises a connecting seat used for being connected with a motor, and the connecting seat comprises a shaft neck part and a first panel coaxially fixed with the shaft neck part. A plurality of blades are further distributed at the front end of the first panel, and a second panel is jointly connected among the tail ends of the blades; wherein a reinforcing assembly is arranged on the second panel, the reinforcing assembly is additionally arranged on the second panel and used for connecting and transmitting the second panel and the shaft neck part, so that in the starting process of the impeller, the stress stability of the second panel can be guaranteed, the torque force generated when the impeller is started to rotate is reduced, and the service life of the impeller is prolonged. The problems that the blades are driven to deform due to non-uniform stress for a long time are avoided; and secondly, the whole reinforcing assembly adopts a detachable structural design, so that the subsequent disassembly and maintenance of the whole impeller are not influenced, and the durability and maintainability of the impeller are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine impeller technology, and in particular to a wind turbine impeller structure. Background Technology

[0002] Range hoods are indispensable equipment in modern kitchens. Their main function is to absorb and remove cooking fumes to keep the kitchen air clean. During operation, the impeller is a key component, responsible for generating airflow to enhance the efficiency of fume absorption and removal.

[0003] Currently, the impeller structure of most range hoods on the market typically employs a design where multiple blades are installed between two panels. One panel is fixed to the motor, and the motor's rotation drives the impeller. However, the other panel relies primarily on the blades for support during startup and operation. During startup, this side panel experiences significant force due to torque. Lacking sufficient support, it is prone to deformation after prolonged use, affecting the stability of the blades and reducing the range hood's performance and lifespan.

[0004] Based on this, in order to achieve stable support for the other side panel and improve overall durability, we propose a fan impeller structure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the other side panel relies primarily on blades for support during startup and operation. During startup, this side panel is subjected to significant forces due to torque. Therefore, this invention proposes a new fan impeller structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a wind turbine impeller structure, including a connecting seat for connecting to a motor, the connecting seat including a journal and a first panel fixed coaxially to the journal;

[0008] Several blades are distributed at the front end of the first panel, and the tail ends of the blades are connected to a second panel.

[0009] The second panel is provided with a reinforcement component, which is detachably connected to the journal.

[0010] Furthermore, the reinforcement component includes a connecting plate with a plurality of arms distributed circumferentially on the connecting plate, and the arms are connected to the second panel by fasteners.

[0011] Furthermore, two guide posts are fixedly connected to the back end of the connecting plate, wherein a snap-fit ​​component is provided on the inner side of the guide post, and an insertion hole adapted to the guide post is opened on the end face of the journal.

[0012] Furthermore, the snap-fit ​​component includes a drive rod passing through the inside of the guide post, one end of which extends through and to the outside of the connecting plate;

[0013] At least one positioning bead is movably connected to the side of the guide post. The positioning bead slides against the outer side of the drive rod. The outer side of the drive rod is provided with an annular groove to accommodate the positioning bead. The inner side of the insertion hole is provided with a locking annular groove that engages with the positioning bead.

[0014] Furthermore, the outer side of the drive rod has an inwardly retracted portion, and a spring is fixedly connected between the inwardly retracted portion and the inner wall of the guide post.

[0015] Furthermore, the blade includes a middle section and a first bent portion and a second bent portion formed at both ends of the middle section, the first bent portion and the second bent portion being fixed to the first panel and the second panel respectively by fasteners.

[0016] The wind turbine impeller structure proposed in this utility model has the following advantages: By adding a reinforcing component to the second panel, which connects the second panel and the journal shaft for transmission, the second panel can be made stable under stress during impeller startup, thereby reducing the torque force during startup rotation and avoiding problems such as uneven stress over a long period of time, which can lead to blade deformation. Secondly, the entire reinforcing component adopts a detachable structure design, which does not affect the subsequent disassembly and maintenance of the entire impeller, greatly improving the impeller's durability and maintainability. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 for Figure 3 A magnified structural diagram of area A.

[0021] In the diagram: 1. Connecting seat; 11. Journal neck; 12. First panel; 13. Insertion hole; 14. Locking ring groove; 2. Blade; 21. Middle section; 22. First bend; 23. Second bend; 3. Second panel; 4. Reinforcing assembly; 41. Connecting plate; 42. Arm; 43. Guide post; 44. Snap-fit ​​component; 441. Drive rod; 442. Positioning bead; 443. Ring groove; 444. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 As an embodiment of this utility model, a fan impeller structure is disclosed. Specifically, the impeller structure includes a connecting seat 1 for connecting with a motor. The connecting seat 1 includes a journal 11 and a first panel 12 coaxially fixed with the journal 11. The journal 11 is used to fix the motor shaft end. Specifically, the two are locked in a keyway fit to achieve circumferential locking, thereby driving the entire impeller to rotate.

[0024] A number of blades 2 are distributed at the front end of the first panel 12, and the tail ends of the blades 2 are connected to the second panel 3. Specifically, in this embodiment, the blades 2 are distributed in a circular pattern.

[0025] The second panel 3 is provided with a reinforcing component 4, which is detachably connected to the journal 11.

[0026] In some embodiments, the reinforcing component 4 of this utility model includes a connecting plate 41, on which a plurality of arms 42 are distributed circumferentially. The arms 42 are connected to the second panel 3 by fasteners. Preferably, in this embodiment, four arms 42 are provided, and the fasteners are bolts. The arms 42 and the second panel 3 are fixed together by bolts, and the connecting plate 41 is fixed to the journal 11 to support the entire second panel 3, thereby reducing the torque force when it starts to rotate and avoiding problems such as uneven stress over a long period of time, which may cause deformation of the blade 2.

[0027] Based on the above embodiments, in this embodiment, the back end of the connecting plate 41 is also fixedly connected to two guide posts 43, wherein the inner side of the guide post 43 is provided with a snap-fit ​​member 44, and the end face of the journal 11 is provided with an insertion hole 13 adapted to the guide post 43, and the guide post 43 is inserted into the inner side of the insertion hole 13.

[0028] Preferably, in this embodiment, the snap-fit ​​component 44 includes a drive rod 441 that passes through the inside of the guide post 43, and one end of the drive rod 441 passes through and extends to the outside of the connecting plate 41.

[0029] At least one positioning bead 442 is movably connected to the side of the guide post 43. That is, in this embodiment, the guide post 43 is a hollow post, and several through holes can be provided on its outer side. The positioning bead 442 is movably connected in the through holes. The diameter of the positioning bead 442 should be larger than the through holes to avoid the problem of it falling out. The positioning bead 442 slides against the outer side of the drive rod 441. The outer side of the drive rod 441 is provided with an annular groove 443 to accommodate the positioning bead 442. The inner side of the insertion hole 13 is provided with a locking annular groove 14 that engages with the positioning bead 442.

[0030] Of course, in order to facilitate the reset control of the drive rod 441, the outer side of the drive rod 441 in this embodiment has an inward retraction portion, and a spring 444 is fixedly connected between the inward retraction portion and the inner wall of the guide post 43.

[0031] In other words, when connecting the connecting plate 41, first press the two drive rods 441 to move them inward until the annular groove 443 on the drive rod 441 is opposite to the positioning bead 442. At this time, the positioning bead 442 has the capacity to move inward. Insert the two guide posts 43 at the inner end of the connecting plate 41 into the insertion hole 13 of the journal 11. After the guide posts 43 are inserted into place, release the pressure on the drive rod 441. Driven by the spring 444, the drive rod 441 returns to its original position. The outer flat part of the drive rod 441 abuts against the positioning bead 442 and moves outward until the positioning bead 442 is engaged in the locking annular groove 14 to complete the connection between the guide post 43 and the journal 11. Finally, fix it to the second panel 3 through the arm 42 to complete the assembly.

[0032] Of course, during disassembly, press the drive rod 441 inward until its annular groove 443 aligns with the positioning bead 442, then pull the entire connecting plate 41 to complete the disassembly of the mounting plate 41, thus facilitating subsequent maintenance work.

[0033] It should be noted that the blade 2 in this embodiment includes a middle section 21 and a first bent portion 22 and a second bent portion 23 formed at both ends of the middle section 21. The first bent portion 22 and the second bent portion 23 are fixed to the first panel 12 and the second panel 3 respectively by fasteners. The fasteners in this embodiment can be bolts to facilitate subsequent disassembly, cleaning or replacement operations. The first bent portion 22 and the second bent portion 23 provide installation space to facilitate the installation of the fasteners.

[0034] In summary, by adding a reinforcing component 4 to the second panel 3, the present invention connects the second panel 3 and the journal 11 for transmission. This ensures the stability of the second panel 3 under stress during impeller startup, reducing the torque force during startup rotation and preventing long-term uneven stress that could lead to deformation of the blades 2. Furthermore, the entire reinforcing component 4 adopts a detachable structure design, which does not affect the subsequent disassembly and maintenance of the entire impeller, greatly improving the durability and maintainability of the impeller.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fan impeller structure, comprising a connecting base (1) for connection with a motor, characterized in that: The connecting seat (1) includes a journal (11) and a first panel (12) coaxially fixed with the journal (11); Several blades (2) are distributed at the front end of the first panel (12), and the tail ends of the several blades (2) are connected together by a second panel (3). The second panel (3) is provided with a reinforcing component (4), which is detachably connected to the journal (11).

2. The fan impeller structure according to claim 1, characterized in that: The reinforcement component (4) includes a connecting plate (41) with a plurality of arms (42) distributed around its circumference. The arms (42) are connected to the second panel (3) by fasteners.

3. The fan impeller structure according to claim 2, characterized in that: The back end of the connecting plate (41) is also fixedly connected to two guide posts (43), wherein the inner side of the guide post (43) is provided with a snap-fit ​​member (44), and the end face of the journal (11) is provided with an insertion hole (13) that is compatible with the guide post (43).

4. The fan impeller structure according to claim 3, characterized in that: The snap-fit ​​component (44) includes a drive rod (441) passing through the inside of the guide post (43), one end of the drive rod (441) extending through and to the outside of the connecting plate (41); At least one positioning bead (442) is movably connected to the side of the guide post (43). The positioning bead (442) slides against the outer side of the drive rod (441). The outer side of the drive rod (441) is provided with an annular groove (443) to accommodate the positioning bead (442). The inner side of the insertion hole (13) is provided with a locking annular groove (14) that engages with the positioning bead (442).

5. A fan impeller structure according to claim 4, characterized in that: The drive rod (441) has an inwardly retracted portion on its outer side, and a spring (444) is fixedly connected between the inwardly retracted portion and the inner wall of the guide post (43).

6. The fan impeller structure according to claim 1, characterized in that: The blade (2) includes a middle section (21) and a first bent portion (22) and a second bent portion (23) formed at both ends of the middle section (21). The first bent portion (22) and the second bent portion (23) are fixed to the first panel (12) and the second panel (3) respectively by fasteners.

Images