Efficient light-weight fan air guide ring

Abstract

The utility model relates to the technical field of fans, and discloses an efficient light-weight fan air guide ring which comprises a support, and a guide vane assembly is further arranged in the support. The guide vane assembly comprises a guide vane hub, a plurality of rear guide vanes are arranged on the peripheral side of the guide vane hub, the guide vane hub is installed on the inner wall of the support through the rear guide vanes, and a through hole is further formed in the guide vane hub. And the airflow accelerated by the impeller can be secondarily guided and rectified. Air flow with rotating speed is adjusted to be axial flow, so that rotational flow loss is effectively reduced, the air flow energy utilization rate is improved, and the performance and efficiency of the fan are remarkably improved. And meanwhile, noise and vibration caused by airflow rotation and turbulent flow can be reduced, so that the fan runs more stably and comfortably.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely is a kind of high-efficiency light weight fan wind guide ring. BACKGROUND

[0002] Fan is a kind of general mechanical equipment that converts mechanical energy into gas energy and realizes gas directional delivery, is widely used in industry, building, agriculture, transportation and energy and multiple fields.Such as according to working principle, fan can be divided into volume type, turbine type and jet type;By use, it can be divided into industrial boiler fan, tunnel fan, general exhaust fan and so on;By airflow direction, it can be divided into centrifugal fan, axial fan, mixed flow fan etc.In industrial field, fan is used for ventilation, dust removal, cooling.

[0003] Most conventional fans are not equipped with rear guide vanes, airflow at impeller outlet is turbulent, and rotational flow loss is serious, resulting in low energy utilization rate of fan and low efficiency.And due to unstable airflow, noise and vibration problems are more prominent, affecting use experience and working environment, and some fans with guide vanes, generally the middle hub part is a flat annular arrangement, which is sleeved on the motor, on the one hand, due to the structure design, the hub part is under stress, thereby reducing the stability of the motor, on the other hand, the hub is directly sleeved on the outer peripheral side of the motor, with small gap, which cannot effectively dissipate heat, thereby local overheating phenomenon may occur. SUMMARY

[0004] To solve the above problems existing in the prior art, the utility model provides a kind of high-efficiency light weight fan wind guide ring, with the advantages of stabilizing fan airflow and motor rapid heat dissipation.

[0005] To realize the above-mentioned purposes of stabilizing fan airflow and motor rapid heat dissipation, the utility model provides the following technical scheme: including support, the support is also provided with guide vane assembly in it;

[0006] The guide vane assembly includes guide vane hub, and the outer peripheral side of the guide vane hub is provided with a plurality of rear guide vanes, wherein the guide vane hub is installed on the inner wall of the support through the rear guide vanes, and a through hole is further formed in the guide vane hub.

[0007] Preferably, the rear guide vanes are curved, and the guide vane hub is arranged at the center of the support, which is hollow inside and open at both sides, and a motor set is detachably installed in the inside of the guide vane hub, and a plurality of water dripping holes are further arranged on the guide vane hub.

[0008] Preferably, the rear guide vanes are arranged in an arc shape on both sides of the support and the guide vane hub, and the rear guide vanes are twisted, and the rear guide vanes are fixedly connected with the support and the guide vane hub respectively, and are circumferentially distributed, and the outer circumferential side of the guide vane hub is provided in a hemispherical shape, and the heat dissipation holes are provided with at least two and are uniformly and circumferentially distributed.

[0009] Preferably, the guide vane hub is provided in a hemispherical shape.

[0010] Preferably, the guide vane hub is provided in a circular truncated cone shape, and is hollow inside, and a plurality of ribs are arranged on the inner end wall of the hollow, and the width of the ribs is smaller than the width of the heat dissipation holes.

[0011] Compared with the prior art, the high-efficiency lightweight fan guide ring has the following beneficial effects:

[0012] 1. The high-efficiency lightweight fan guide ring, through the arrangement of the rear guide vanes, can guide and rectify the airflow accelerated by the impeller for the second time. The airflow with rotational speed is adjusted to axial flow, effectively reducing the rotational flow loss, improving the airflow energy utilization rate, and significantly improving the performance and efficiency of the fan. At the same time, it can reduce the noise and vibration caused by airflow rotation and turbulence, and make the fan run more smoothly and comfortably.

[0013] 2. The high-efficiency lightweight fan guide ring, through the arrangement of the guide vane hub in a spherical shape, the motor is fixed by a local spherical structure, compared with the traditional planar fixing mode, it can better adapt to the slight vibration and displacement of the motor during operation. The curved surface characteristics of the sphere can provide relatively uniform support force in all directions, effectively reducing the energy transmitted to the support and the entire fan structure due to motor vibration, reducing the risk of structural resonance, ensuring the stability of the motor operation, and it can cleverly integrate the functions of motor fixing, support and connection with the support in a limited space.

[0014] 3. The high-efficiency lightweight fan guide ring, through the arrangement of the heat dissipation holes, and the gap between the spherical guide vane hub and the motor is large, which can directly introduce the cold air outside the motor, accelerate the air convection on the surface of the motor, and take away the heat generated during the operation of the motor, ensuring that each part of the motor can be fully cooled, avoiding the phenomenon of local overheating. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic view of the guide vane assembly of the application.

[0016] Figure 2 It is a rear view structural schematic view of the guide vane assembly of the application.

[0017] Figure 3 It is a hemispherical hub structure diagram of the application.

[0018] In the diagram: 10, bracket; 20, guide vane hub; 201, heat dissipation hole; 202, rear guide vane. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-2 As shown, the guide vane assembly is also fixedly mounted on the bracket 10. It includes a guide vane hub 20, with several rear guide vanes 202 fixedly mounted on its outer periphery. The guide vane hub 20 is fixedly mounted on the inner wall of the bracket 10 via the rear guide vanes 202. At least two heat dissipation holes 201 are also provided on one end face of the guide vane hub 20. The rear guide vanes 202 allow for secondary guidance and rectification of the airflow after impeller acceleration. This adjusts the rotating airflow to axial flow, effectively reducing swirling losses, improving airflow energy utilization, and significantly enhancing fan performance and efficiency. Simultaneously, it reduces noise and vibration caused by airflow rotation and turbulence, making fan operation smoother and more comfortable. Example 1

[0021] The guide vane hub 20 is hemispherical and located at the center of the bracket 10. The guide vane hub 20 can be used to fix the motor, such as... Figure 3As shown, the diameter is D1, the distance between the right cutting surface and the center of the sphere is S1, the distance S1 is smaller than the distance S2, the distance between the left cutting surface and the center of the sphere is S2, and the inside of the guide vane hub 20 is detachably mounted with a motor set to fix the motor in a partial spherical structure. Compared with the traditional flat fixing mode, it can better adapt to the slight vibration and displacement of the motor during operation. The curved surface characteristics of the sphere can provide relatively uniform support force in all directions, effectively reducing the energy transmitted to the support and the entire fan structure due to motor vibration, reducing the risk of structural resonance, ensuring the stability of motor operation, and it can cleverly integrate the functions of motor fixing, support and connection with the support in limited space. This design not only saves the space of additional installation support and connecting parts, but also simplifies the installation process of the motor, improves the assembly efficiency. During maintenance and repair of the fan, the motor is relatively convenient to disassemble and reinstall from the spherical structure, which reduces the maintenance cost and time, the rear guide vane 202 is curved, hollow inside and open on both sides, the rear guide vane 202 is installed in an arc shape on both sides of the support 10 and the guide vane hub 20, and the rear guide vane 202 is twisted, the rear guide vane 202 is fixedly connected with the support 10 and the guide vane hub 20, and is distributed in the circumferential direction, which can further guide and straighten the airflow accelerated by the impeller. It can adjust the airflow with a certain rotational speed at the outlet of the impeller to axial flow, reduce the rotational flow loss of the airflow, and improve the energy utilization rate of the airflow. A plurality of water dripping holes are further provided on the guide vane hub 20. In rainy days or humid environments, rainwater or condensed water may accumulate on the surface of the sphere. The presence of the water dripping hole can timely drain these accumulated water, avoid the water staying on the surface of the sphere for a long time, and prevent the water from penetrating into the motor to cause short circuit, corrosion and other damage to the motor.

[0022] The heat dissipation holes 201 are provided with at least two, which are uniformly distributed in the circumferential direction. Through the arrangement of the heat dissipation holes 201, the cold air outside can be directly introduced into the surrounding of the motor, the air convection on the surface of the motor is accelerated, the heat generated during the operation of the motor is taken away, and each part of the motor can be fully cooled to avoid local overheating.

[0023] The material of the guide vane assembly is plastic, and the surface is sprayed with a protective coating. The coating can block the erosion of ultraviolet rays, oxygen and other substances to the plastic material, delay aging, maintain the mechanical properties and appearance integrity of the material, and prolong the service life. At the same time, it enhances the corrosion resistance in harsh environments, ensures the normal work of the fan, and improves the adaptability in complex environments. In addition, the coating can reduce the surface roughness, reduce the friction resistance between the airflow and the surface of the impeller and support, and improve the operating efficiency of the fan. Example 2

[0024] The guide vane hub 20 can also be frustum shaped and hollow inside. Several ribs are provided on the inner end wall of the hollow space. The width of the ribs is smaller than the width of the heat dissipation holes. During the motor installation process, the ribs restrict the motor to be suspended in the middle of the guide vane hub, thereby increasing its heat dissipation efficiency.

[0025] The rear guide vane 202 is curved, and the direction of its curve is opposite to the rotation direction of the blade 201. Moreover, the angle of the curve gradually decreases from the guide vane hub 20 to the support 10. By setting the curve, the degree of airflow rectification will change with the change of its angle, which is positively correlated, thereby guiding the airflow with higher air volume in the middle.

[0026] In summary, this high-efficiency, lightweight fan guide ring, through the rear guide vane 202, can provide secondary guidance and rectification of the airflow after it has been accelerated by the impeller. It adjusts the rotating airflow into axial flow, effectively reducing swirling losses, improving airflow energy utilization, and significantly enhancing fan performance and efficiency. Simultaneously, it reduces noise and vibration caused by airflow rotation and turbulence, making the fan operation smoother and more comfortable. Furthermore, the spherical design of the guide vane hub 20, with its partially spherical structure for motor fixation, better accommodates the minor vibrations and displacements of the motor during operation compared to traditional planar fixing methods. The curved surface of the sphere can provide relatively uniform support in all directions, effectively reducing the energy transmitted from motor vibration to the support and the entire fan structure, reducing the risk of structural resonance, and ensuring the stability of motor operation. Moreover, it can cleverly integrate the functions of fixing, supporting, and connecting the motor to the support within a limited space. Through the setting of heat dissipation holes 201, cool air from the outside can be directly introduced into the vicinity of the motor, accelerating air convection on the motor surface, carrying away the heat generated during motor operation, ensuring that all parts of the motor are adequately cooled, and avoiding local overheating.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency lightweight fan air guide ring comprising a support (10), characterized in that: A guide vane assembly is further arranged in the bracket (10); The guide vane assembly comprises a guide vane hub (20), a plurality of rear guide vanes (202) are arranged on the outer periphery of the guide vane hub (20), the guide vane hub (20) is mounted on the inner wall of the bracket (10) through the rear guide vanes (202), and a through hole is further formed in the guide vane hub (20).

2. The high-efficiency lightweight fan wind guide ring of claim 1, wherein: The rear guide vanes (202) are arranged in a curved manner, the guide vane hub (20) is arranged at the center of the bracket (10), is hollow inside and is open on both sides, a motor set is detachably mounted in the guide vane hub (20), and a plurality of water dripping holes are further arranged on the guide vane hub (20).

3. The high-efficiency lightweight fan wind guide ring of claim 2, wherein: The rear guide vanes (202) are arranged in an arc shape on both sides of the bracket (10) and the guide vane hub (20), the rear guide vanes (202) are arranged in a twisted manner, the rear guide vanes (202) are fixedly connected with the bracket (10) and the guide vane hub (20) respectively and are distributed in a circumferential direction, the outer periphery of the guide vane hub (20) is arranged in a hemispherical shape, at least two heat dissipation holes (201) are further formed in one side end face of the guide vane hub (20) and are arranged in a uniform circumferential direction.

4. The high-efficiency lightweight fan wind guide ring of claim 1, wherein: The guide vane hub (20) is arranged in a hemispherical shape.

5. The high-efficiency lightweight fan wind guide ring of claim 4, wherein: The guide vane hub (20) is arranged in a circular truncated cone shape and is hollow inside, a plurality of ribs are arranged on the inner end wall of the hollow portion, and the width of the ribs is smaller than the width of the heat dissipation holes.

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