Axial flow impeller

Abstract

The utility model discloses an axial flow impeller and belongs to the field of impellers. One end of each protrusion is connected into the hub in a sleeved mode; the annular connecting pieces are connected with the other ends of the bulges; the through holes are formed between the annular connecting piece and the adjacent bulges; the connecting ring is sleeved in the annular connecting piece; and the blades are connected outside the hub. The plurality of small sharp wings are connected to the tops of the blades at intervals. And the triangular groove-shaped structure is connected to the tail edge part of the blade. And the grooves are formed in the roots of the blades. The hub, the protrusions, the annular connecting piece and the blades are connected in an integrated injection molding mode. The utility model has the technical effects that the noise can be reduced conveniently, and the heat dissipation performance is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to an impeller, especially to an axial flow impeller. BACKGROUND

[0002] The axial flow impeller is a key component for fluid machinery (such as heat pump, fan, compressor, etc.), which is characterized by fluid entering the impeller along the axial direction and flowing out along the axial direction basically.

[0003] However, the gas flow rate at the root of the related axial flow impeller is low, resulting in a large amount of low-energy gas gathering at the root, thereby generating noise. At the same time, the heat dissipation performance of the related axial flow impeller is poor, thereby leading to poor heat dissipation performance of the related motor. SUMMARY

[0004] The utility model aims at providing an axial flow impeller which not only facilitates noise reduction but also has good heat dissipation performance.

[0005] TECHNICAL SOLUTION

[0006] An axial flow impeller comprises:

[0007] a hub;

[0008] a plurality of protrusions, one end of each of the plurality of protrusions being sleeved in the hub;

[0009] a ring-shaped connecting member connected to the other end of each of the plurality of protrusions;

[0010] a through hole formed between the ring-shaped connecting member and the adjacent protrusion;

[0011] a linking ring sleeved in the ring-shaped connecting member;

[0012] a plurality of blades connected to the outside of the hub.

[0013] Optionally, the axial flow impeller further comprises a plurality of sharp wings connected to the top of the blades.

[0014] Optionally, the axial flow impeller further comprises a triangular groove structure connected to the trailing edge portion of the blades.

[0015] Optionally, the axial flow impeller further comprises a groove provided at the root of the blades.

[0016] Optionally, the hub, the plurality of protrusions, the ring-shaped connecting member and the plurality of blades are connected by one-piece injection molding.

[0017] Optionally, the linking ring comprises:

[0018] a ring body sleeved in the ring-shaped connecting member;

[0019] A plurality of connecting buckles connected with the ring body, the connecting buckles being inserted into the annular connecting piece.

[0020] Optionally, a dovetail groove is arranged in the connecting buckle, so that the connecting buckle is configured as a first buckle body and a second buckle body, the first buckle body and the second buckle body being inserted into the annular connecting piece.

[0021] Optionally, the ring body and the plurality of connecting buckles are integrally formed.

[0022] Advantages:

[0023] (1) The through hole facilitates the flow of low-energy gas gathered at the root of the axial flow impeller, thereby facilitating the reduction of low-energy gas and the reduction of noise, and the flow of low-energy gas through the through hole also facilitates the removal of heat, thereby having good heat dissipation performance.

[0024] (2) The blade is used to generate wind volume, and the blade is preferably installed at a large angle, thereby facilitating the reduction of airflow interference between adjacent blades, the rotation of the blade with large wind volume, and the good aerodynamic performance of the blade with unequal thickness design.

[0025] (3) The sharp small wing facilitates the reduction of backflow of the blade tip gap, thereby facilitating the improvement of the efficiency of the blade.

[0026] (4) The triangular groove type structure is used to disperse large vortexes, thereby further facilitating the reduction of noise.

[0027] (5) The groove is used to cooperate with the balancing clamp, thereby facilitating the reduction of the risk of falling of the balancing clamp during the rotation of the blade.

[0028] (6) The connecting buckle is used to be inserted into the annular connecting piece, so that the contact area of the connecting buckle and the annular connecting piece is large, thereby facilitating the high connection strength of the two. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structure diagram of an axial flow impeller of embodiment 1 of the utility model;

[0030] Figure 2 It is a structure diagram of an axial flow impeller of embodiment 1 of the utility model;

[0031] Figure 3 It is a local view of an axial flow impeller of embodiment 1 of the utility model;

[0032] Figure 4 It is a structure diagram of a connecting ring of embodiment 1 of the utility model;

[0033] In the figure: 1, hub; 11, protrusion; 12, annular connecting piece; 13, through hole; 2, adapter ring; 21, ring body; 22, connecting buckle; 221, first buckle body; 222, second buckle body; 223, dovetail groove; 3, blade; 31, winglet; 32, triangular groove type structure; 33, groove. DETAILED DESCRIPTION

[0034] In order to make the technical scheme of the utility model more clear, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0035] The application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description. The first, second and the like in the utility model are set for the convenience of describing the technical scheme of the utility model, and do not have a specific limiting effect, and are all generic, which do not constitute a limiting effect on the technical scheme of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. In the description of the utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for description purposes, and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The multiple technical schemes in the same embodiment, and the multiple technical schemes of different embodiments can be arranged and combined to form new technical schemes without contradiction or conflict, which are within the scope of the utility model claimed.

[0036] Embodiment 1

[0037] As Figures 1-4The embodiment provides an axial flow impeller, which comprises a hub 1, a plurality of protrusions 11, one end of each of the plurality of protrusions 11 being sleeved in the hub 1, a ring-shaped connecting piece 12 connected with the other end of each of the plurality of protrusions 11, a through hole 13 formed between the ring-shaped connecting piece 12 and the adjacent protrusion 11, a connecting ring 2 sleeved in the ring-shaped connecting piece 12, and a plurality of blades 3 connected to the outside of the hub 1.

[0038] Specifically, the hub 1 is used for bearing the plurality of blades 3; the protrusions 11 are used for increasing the strength of the hub 1, the number of the protrusions 11 is not limited, and can be eight, ten or the like, the spacing between the adjacent protrusions 11 can be equal or unequal; the ring-shaped connecting piece 12 is used for bearing the connecting ring 2; the through hole 13 facilitates the flow of low-energy gas gathered at the root of the axial flow impeller, thereby facilitating the reduction of low-energy gas, and further facilitating the reduction of noise, meanwhile, the flow of low-energy gas through the through hole 13 also facilitates the removal of heat, and the axial flow impeller has good heat dissipation performance; the connecting ring 2 is used for being connected with a rotor of a related motor, thereby facilitating the rotation of the axial flow impeller, wherein the material of the connecting ring 2 is preferably steel; the blades 3 are used for generating wind volume, the blades 3 are preferably installed at a large angle, thereby facilitating the small airflow interference between the adjacent blades 3, the rotation of the blades 3 has large wind volume, the blades 3 are preferably designed to have unequal thickness, have good aerodynamic performance, the number of the blades 3 is not limited, and can be three, four or the like, and preferably three; the diameter of the axial flow impeller can be 400mm, 450mm, 500mm, 550mm or 630mm, and the axial flow impeller is mainly suitable for a place with large wind volume and low noise, such as a heat pump. Figures 1-3 The arrow on the blade 3 represents the rotation direction of the blade 3.

[0039] Further, the axial flow impeller further comprises a plurality of sharp wings 31 connected to the top of the blade 3. Figure 1

[0040] Specifically, the sharp wings 31 facilitate the reduction of backflow of the blade tip gap of the blade 3, thereby facilitating the improvement of the efficiency of the blade 3, wherein the number of the sharp wings 31 is not limited, and can be two, three or the like, and preferably three.

[0041] Further, the axial flow impeller further comprises a triangular groove type structure 32 connected to the trailing edge part of the blade 3. Figure 1

[0042] Specifically, the triangular groove type structure 32 is used for dispersing large vortexes, thereby further facilitating the reduction of noise.

[0043] Further, the axial flow impeller further comprises a groove 33 arranged at the root of the blade 3. Figure 1

[0044] ​​​Specifically, the groove 33 is used in cooperation with the balancing clip to facilitate reducing the risk of the balancing clip falling off when the blade 3 rotates, wherein the number of the groove 33 is preferably two, and is arranged on both sides of the root of the blade 3.

[0045] Further, the connecting mode between the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 is integrally injection molded connection. Figure 3

[0046] Specifically, the integrally injection molded connection facilitates good integrity, and during injection molding, the adapter ring 2 is first placed in the mold, and then injection molding is performed, which facilitates high connection strength of the adapter ring 2 and the annular connecting piece 12, wherein the material of the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 can be a material mixed with polypropylene and glass fiber.

[0047] Further, the connecting mode between the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 is integrally injection molded connection. Figure 4

[0048] Specifically, the groove 33 is used in cooperation with the balancing clip to facilitate reducing the risk of the balancing clip falling off when the blade 3 rotates, wherein the number of the groove 33 is preferably two, and is arranged on both sides of the root of the blade 3.

[0049] Further, the connecting mode between the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 is integrally injection molded connection. Figure 4

[0050] Specifically, the first clamping body 221 and the second clamping body 222 facilitate further increasing the contact area of the connecting buckle 22 and the annular connecting piece 12, and guaranteeing high connection strength of the two, and at the same time, the dovetail groove 223 facilitates the first clamping body 221 and the second clamping body 222 both being in the form of barbs, thereby facilitating effectively preventing the connecting buckle 22 and the annular connecting piece 12 from being separated from each other.

[0051] Further, the connecting mode between the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 is integrally injection molded connection. Figure 4

[0052] Specifically, the integrally injection molded connection facilitates good integrity, and during injection molding, the adapter ring 2 is first placed in the mold, and then injection molding is performed, which facilitates high connection strength of the adapter ring 2 and the annular connecting piece 12, wherein the material of the hub 1, the plurality of protrusions 11, the annular connecting piece 12 and the plurality of blades 3 can be a material mixed with polypropylene and glass fiber.

[0053] ​​​​The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. An axial impeller, characterized by The utility model relates to a kind of wind turbine blade, including: Wheel hub (1); Several protrusions (11), one end of several described protrusions (11) are sleeved in the wheel hub (1); Annular connecting piece (12) is connected with the other end of several described protrusions (11); Through hole (13) is formed between the annular connecting piece (12) and adjacent described protrusion (11); Adaptor ring (2) is sleeved in the annular connecting piece (12); Several blades (3) are connected outside the wheel hub (1).

2. An axial impeller according to claim 1, wherein It further includes several sharp wings (31) that are spaced connected to the top of the blade (3).

3. An axial impeller according to claim 1, wherein It further includes triangular groove type structure (32) connected to the trailing edge portion of the blade (3).

4. An axial impeller according to claim 1, wherein It further includes groove (33) provided at the root of the blade (3).

5. An axial impeller according to claim 1, wherein The connection mode between the wheel hub (1), several protrusions (11), annular connecting piece (12) and several blades (3) is integrally injection molded connection.

6. An axial impeller according to any one of claims 1-5, characterized in that The adaptor ring (2) includes: Ring body (21) is sleeved in the annular connecting piece (12); Several connecting buckles (22) are connected with the ring body (21), and the connecting buckle (22) is inserted into the annular connecting piece (12).

7. An axial impeller according to claim 6, wherein Dovetail groove (223) is provided in the connecting buckle (22), so that the connecting buckle (22) is configured as first buckle body (221) and second buckle body (222), and the first buckle body (221) and the second buckle body (222) are inserted into the annular connecting piece (12).

8. An axial impeller according to claim 6, wherein The ring body (21) and several connecting buckles (22) are integrally connected.

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