Double-channel impeller

Abstract

The utility model belongs to the technical field of impellers, and particularly relates to a double-channel impeller which comprises a hub. The fan blades are obliquely arranged on the periphery of the hub and are arranged in an annular array; the plurality of ventilation holes are formed in the hub and are arranged in an annular array; the section shape of the fan blades in the radial direction of the hub is of an annular structure; the impeller has the advantages that the fan blades are obliquely arranged on the periphery of the hub, the section of the whole fan blades in the radial direction of the hub is of an annular structure, it is guaranteed that air efficiently flows through the impeller, blade tip vortexes are reduced, and the wind resistance, noise and cavitation phenomena are reduced; the structural strength of the fan blades can be enhanced, the fan blades are not prone to deformation or damage, the service life is prolonged, the fan blades can be matched with the higher rotating speed, and economic benefits are better; in addition, a plurality of ventilation holes are formed in the hub, so that the heat dissipation effect on the motor is enhanced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of impellers, and in particular relates to a double-channel impeller. Background Art

[0002] Impellers are widely used in fluid mechanics systems, such as fans, turbines, water pumps, compressors, etc. In fans, impellers are used to generate airflow; in turbines, impellers are used to convert the kinetic energy of the fluid into mechanical energy; in water pumps, impellers are used to increase pressure or transport liquids.

[0003] In the prior art, most impellers have a simple structure, usually consisting of a hub and a series of blades. The hub is fixed on the shaft and rotates to drive the blades to rotate, which is used to transfer fluid energy or generate flow. As the impeller rotates, air or fluid is forced to pass through the blades, which will generate turbulence and eddies. These turbulence and eddies will cause friction and vibration between the blades and the surrounding structure, which can easily cause noise and affect use. Utility Model Content

[0004] The purpose of the utility model is to provide a double-channel impeller to solve the above-mentioned technical problems, so as to achieve the effect of reducing noise during use.

[0005] In view of this, the utility model provides a double-channel impeller, comprising:

[0006] Wheel hub;

[0007] A plurality of fan blades, wherein the plurality of fan blades are obliquely disposed on the outer circumference of the hub and arranged in a ring array;

[0008] A plurality of ventilation holes, wherein the plurality of ventilation holes are disposed on the hub and arranged in a ring array;

[0009] Wherein, the cross-sectional shape of the fan blade in the radial direction of the hub is an annular structure.

[0010] Furthermore, the wheel hub comprises:

[0011] A main body, wherein the main body is a cylindrical structure;

[0012] A fixing part, which is a ring-shaped structure and is disposed on one end of the main body;

[0013] Among them, a plurality of the fan blades are arranged on the main body, and a plurality of the ventilation holes are arranged on the fixing part.

[0014] Furthermore, the main body and the fixing part are an integral structure.

[0015] Furthermore, the ventilation holes are obliquely arranged on the fixing portion.

[0016] Furthermore, a plurality of the fan blades are integrally connected to the main body.

[0017] The beneficial effects of the utility model are:

[0018] 1. Several blades are arranged obliquely on the outer periphery of the hub, and the cross-sectional shape of the blade as a whole in the radial direction of the hub is an annular structure, which can ensure that air flows efficiently through the impeller, reduce the tip vortex, reduce the wind resistance and noise generated when the impeller is in use, and reduce cavitation to a certain extent. This structural design can also enhance the structural strength of the blades, so that the blades can better withstand wind resistance, are not easily deformed or damaged, effectively extend the service life of the impeller, and improve durability; and can also match higher speeds, with better economic benefits.

[0019] 2. By setting a number of ventilation holes on the wheel hub, the air between the wheel hub and the motor can flow more freely, thereby enhancing the heat dissipation of the motor and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model when it is assembled and used;

[0023] Figure 4 It is a structural schematic diagram of another viewing angle when the utility model is assembled and used;

[0024] The symbols in the figure are:

[0025] 1. Hub; 11. Main body; 12. Fixed part; 2. Fan blade; 21. Blade; 22. Connecting piece; 3. Ventilation hole; 4. Fixed frame; 5. Installation gap. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] Embodiment 1:

[0029] This embodiment provides a dual-channel impeller, comprising:

[0030] Wheel hub 1;

[0031] A plurality of blades 2, wherein the plurality of blades 2 are obliquely disposed on the outer periphery of the hub 1 and arranged in a ring array;

[0032] A plurality of ventilation holes 3, wherein the plurality of ventilation holes 3 are provided on the hub 1 and arranged in a ring array;

[0033] The cross-sectional shape of the fan blade 2 in the radial direction of the hub 1 is an annular structure.

[0034] In the present technical solution, when the impeller is in use, the hub 1 is first installed on the fixed frame 4, and a motor is provided on the fixed frame 4 and connected to the hub 1 to drive the hub 1 to rotate. The blades 2 on the hub 1 rotate along with the rotation of the hub 1, thereby driving the air flow, and the flowing air flows between the two blades 2 and inside the blades 2.

[0035] The fan blade 2 is composed of two blades 21 and a connecting piece 22. One end of the two blades 21 is connected to the hub 1, and the other ends of the two blades 21 are respectively connected to the two ends of the connecting piece 22 in an integral manner, so that the cross-sectional shape of the fan blade 2 as a whole in the radial direction of the hub 1 is an annular structure. Through this structural design, the impeller can ensure that the air flows through the impeller efficiently when working, reduce the tip vortex, reduce the wind resistance and noise generated when the impeller is used, and reduce cavitation to a certain extent. In addition, the structural design can also enhance the structural strength of the fan blade 2, so that the fan blade 2 can better withstand wind resistance, is not easy to deform or damage, effectively prolongs the service life of the impeller, and improves durability; and can also match higher speeds, with better economic benefits.

[0036] like Figure 3 , 4 As shown, when the wheel hub 1 is installed on the motor for use, there is an installation gap 5 between the wheel hub 1 and the motor. The heat generated when the motor is working will dissipate through the installation gap 5. By setting a plurality of ventilation holes 3 on the wheel hub 1, the air between the wheel hub 1 and the motor can be more circulated, thereby enhancing the heat dissipation effect on the motor and thus extending the service life of the motor. In addition, the provision of ventilation holes 3 can also increase the number of channels for air flow on the impeller, so that more air can flow freely through the impeller, reduce the wind resistance of the impeller, improve the air circulation efficiency, and reduce the energy consumption required when the impeller is used.

[0037] Embodiment 2:

[0038] This embodiment provides a dual-channel impeller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] Furthermore, the wheel hub 1 comprises:

[0040] The main body 11 is a cylindrical structure;

[0041] A fixing portion 12, wherein the fixing portion 12 is an annular structure and is disposed on one end of the main body 11;

[0042] Among them, a plurality of the fan blades 2 are arranged on the main body 11 , and a plurality of the ventilation holes 3 are arranged on the fixing portion 12 .

[0043] In the present technical solution, when the impeller is in use, the motor of the fixed frame 4 is located inside the main body 11, and there is an installation gap 5 between the motor and the main body 11, and the driving end of the motor is connected to the fixed part 12. The motor drives the fixed part 12 to rotate, thereby driving the main body 11 to rotate, thereby driving a number of fan blades 2 to rotate, and then driving the air flow, allowing the air to flow through the inside of the fan blades 2, the gap between the two fan blades 2 and the ventilation holes 3, thereby achieving air circulation. The air flowing through the ventilation holes 3 will pass through the installation gap 5 between the motor and the main body 11, thereby dissipating the heat for the motor.

[0044] Furthermore, the main body 11 and the fixing part 12 are an integrated structure. Through this structural design, the connection between the main body 11 and the fixing part 12 is strengthened, the structural strength of the hub 1 is effectively improved, so that the hub 1 can better withstand the resistance generated by air flow, is not easy to deform or damage, and effectively improves the durability of the impeller.

[0045] Embodiment 3:

[0046] This embodiment provides a dual-channel impeller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] Furthermore, the ventilation hole 3 is obliquely arranged on the fixing portion 12 .

[0048] In this technical solution, if Figure 1 As shown, the ventilation holes 3 are obliquely arranged on the fixing portion 12 of the hub 1, and the inclination direction of the ventilation holes 3 is consistent with the inclination direction of the fan blades 2 arranged on the hub 1. Through this structural design, the air can flow through the ventilation holes 3 on the fixing portion 12 more effectively when the impeller is working, reducing the resistance encountered during air flow, improving the air circulation efficiency, and reducing the friction and turbulence between the airflow and the wall of the ventilation holes 3, thereby reducing the noise level, which is more environmentally friendly and practical.

[0049] Embodiment 4:

[0050] This embodiment provides a dual-channel impeller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Furthermore, the plurality of fan blades 2 are integrally connected to the main body 11 .

[0052] In the present technical solution, the structural design is used to enhance the connection strength between the fan blades 2 and the main body 11, effectively enhancing the overall structural strength of the impeller, making it less likely for the impeller to be deformed or damaged during operation, thereby improving its durability.

[0053] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A dual-channel impeller, characterized in that: include: Wheel hub (1); A plurality of fan blades (2), wherein the plurality of fan blades (2) are obliquely arranged on the outer periphery of the hub (1) and arranged in a ring array; A plurality of ventilation holes (3), wherein the plurality of ventilation holes (3) are disposed on the hub (1) and are arranged in a ring array; Wherein, the cross-sectional shape of the fan blade (2) in the radial direction of the hub (1) is an annular structure.

2. A dual-channel impeller according to claim 1, characterized in that: The wheel hub (1) comprises: A main body (11), wherein the main body (11) is a cylindrical structure; A fixing portion (12), wherein the fixing portion (12) is an annular structure and is disposed on one end of the main body portion (11); Wherein, a plurality of the fan blades (2) are arranged on the main body (11), and a plurality of the ventilation holes (3) are arranged on the fixing part (12).

3. A dual-channel impeller according to claim 2, characterized in that: The main body (11) and the fixing part (12) are an integral structure.

4. A dual-channel impeller according to claim 2, characterized in that: The ventilation hole (3) is arranged obliquely on the fixing portion (12).

5. A dual-channel impeller according to claim 2, characterized in that: The plurality of fan blades (2) are integrally connected to the main body (11).

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