Circulating fan airflow guide structure and air circulating fan

Abstract

The utility model belongs to the technical field of circulating fans, and particularly relates to a circulating fan airflow guide structure and an air circulating fan. The air circulation fan comprises a circulation fan airflow guide structure, the circulation fan airflow guide structure comprises a barrel shell, and the barrel shell comprises an air inlet and an air outlet; a plurality of flow guide rib plates are distributed on the inner side wall, close to the air inlet, of the barrel shell, the flow guide rib plates extend towards the center of the barrel shell, and flow guide grooves are formed between the adjacent flow guide rib plates; the inner side wall of the barrel shell is further provided with a fluid channeling partition plate extending from the end side of the flow guide rib plate to the air outlet. The flow guide rib plates are arranged in the barrel shell, the flow guide rib plates form the flow guide grooves, and therefore airflow can be tidied through the flow guide grooves, the problem of mutual interference of the airflow can be effectively prevented, the airflow blown out of the air outlet is more stable, the airflow speed and wind power are larger, and the distance of the blown airflow is longer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air circulation technical field, especially relate to a circulating fan air flow guide structure and air circulation fan. BACKGROUND

[0002] Air circulation fan is mostly used for the air circulation of indoor, makes the air temperature distribution of indoor even. Also can use air circulation fan as fan.

[0003] The main structure of air circulation fan includes driving motor, turbine fan, guide grid and cylindrical shell. Unlike ordinary fan, air circulation fan can make wind blow out along certain direction in spiral shape, and finally can form spiral columnar wind with fan blade stirring. The wind blown out by air circulation fan has long distance, and has good directivity.

[0004] Usually, one factor of the distance of air circulation fan blowing out is the effective length of air duct, usually the longer the length of air duct, the greater the blowing distance. But the air duct of existing air circulation fan adopts fixed distance, which cannot be adjusted, that is, cannot be prolonged according to actual use environment.

[0005] In order to overcome the defects of the prior art, the Chinese utility model patent document with authorization publication number CN222067126U discloses a kind of air circulation fan of magnetic telescopic air duct, including base, support rod group being arranged on the base, fan head being arranged on the support rod group, the fan head includes: fan head group, which is connected with the upper end of the support rod group;Inlet hood, which is arranged on the fan head group, and inlet grid is arranged on it, and electromagnetic generating device for connecting power supply to generate magnetism is also arranged;Fixed air duct cylinder, which is arranged on the outer side of the front end of the inlet hood;Mobile outlet cylinder, which is connected to the fixed air duct cylinder, and can be telescopic and moved forward and backward relative to the fixed air duct cylinder, and outlet grid is arranged on the front side thereof, and magnetic ring is arranged on the rear side thereof;The rear side of the mobile outlet cylinder is provided with clamping ring groove for clamping the magnetic ring. The electromagnetic generating device is connected to power supply to generate magnetism, when the magnetism generated thereby is the same as the magnetic ring, repulsion is generated, which drives the mobile outlet cylinder to extend out of the fixed air duct cylinder to prolong the air duct of air circulation fan;When the electromagnetic generating device generates opposite magnetism with the magnetic ring, attraction is generated, which drives the mobile outlet cylinder to retract into the fixed air duct cylinder to reduce blowing distance, so that blowing air duct can be adjusted according to different use requirements, to further flexibly adapt to use requirements, and the practicability and applicability of the application can be greatly improved.

[0006] But in the actual operation process of the air circulation fan, the fan blade rotates at high speed, and the air flow speed and air pressure of the air flow closer to the outer circle of the fan blade are greater than those of the air flow closer to the center. And when the fan blade rotates at high speed, not every air flow can be quantitatively and directionally output, so there is a situation that the air flow is not very stable. When the air flow duct distance is longer, the mutual interference of the air flow is more obvious, which not only causes large wind noise, but also reduces the speed and wind power of the air flow. Content of the utility model

[0007] The utility model discloses a circulating fan air flow guide structure and air circulation fan, and aims at solving the technical problem that the existing air circulation fan causes large wind noise and small wind power in the case of long air flow duct.

[0008] To achieve the above-mentioned purpose, the utility model embodiment provides a circulating fan air flow guide structure, which is arranged in the air circulation fan and comprises a cylinder shell, the cylinder shell comprises an air inlet and an air outlet, the inner side wall of the cylinder shell is provided with a plurality of guide ribs close to the air inlet, the guide ribs extend to the center of the cylinder shell, and guide grooves are formed between adjacent guide ribs, and the inner side wall of the cylinder shell is further provided with a flow channeling baffle extending from the end side of the guide rib to the air outlet.

[0009] Further, the radial section of the guide rib is a spiral line structure, and the flow channeling baffle and the guide rib are an integral forming structure.

[0010] Further, an inner cylinder is further arranged in the cylinder shell, the inner cylinder and the cylinder shell form an annular air duct, one end of the guide rib is connected to the inside of the cylinder shell, and the other end is connected to the outer side wall of the inner cylinder.

[0011] Further, the end face of the inner cylinder is flush with the air outlet of the cylinder shell.

[0012] Further, the end closer to the air inlet of the inner cylinder is provided with a baffle, the baffle seals the mouth of the inner cylinder, and the baffle and the inner cylinder form a cavity.

[0013] Further, the baffle is recessed into the cavity to form a mounting cavity.

[0014] Further, the air outlet of the cylinder shell is provided with an inwardly converging extrusion cone ring.

[0015] The one or more technical solutions of the circulating fan air flow guide structure provided by the utility model embodiment at least have the following technical effects:

[0016] 1. The inner wall of the cylinder shell is provided with a guide rib plate, and the guide rib plate forms a guide groove, so that the air flow can be arranged through the guide groove, the problem of air flow interference can be effectively prevented, the air flow blown out of the air outlet is more stable, the air flow speed and wind power are greater, and the blown air flow distance is farther.

[0017] 2. Since the air flow speed and air pressure of the air flow closer to the inner wall of the cylinder shell are greater when the fan blades rotate at high speed, the inner wall of the cylinder shell is provided with a flow channeling partition plate extending to the air outlet, so that the air flow of the outer ring can be better guided, the problem of air flow interference and flow channeling of the outer ring is avoided, and the air flow speed and air flow pressure output from the air outlet are further ensured.

[0018] An air circulation fan comprises a circulation fan air flow guiding structure, and further comprises a shell, a front net and a rear net, the cylinder shell is arranged in the shell, and the front net and the rear net are respectively arranged at the front end and the rear end of the shell.

[0019] Further, the front net is provided with a spiral rib plate reversely bent with the guide rib plate.

[0020] The one or more technical solutions in the circulation fan air flow guiding structure provided by the embodiment of the utility model have at least the following technical effects:

[0021] The front net is arranged at the front end of the cylinder shell, the output air flow can be guided again to form spiral air flow by the front net, and the speed and air pressure of the air flow are further increased. DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structural diagram of the air circulation fan provided by the embodiment of the utility model is shown.

[0024] Figure 2 The structural diagram of the circulation fan air flow guiding structure provided by the embodiment of the utility model is shown.

[0025] Figure 3 The other side structural diagram of the circulation fan air flow guiding structure provided by the embodiment of the utility model is shown.

[0026] Figure 4 The sectional view of the circulation fan air flow guiding structure provided by the embodiment of the utility model is shown. CONCRETE IMPLEMENTING METHOD

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] In one embodiment of the air circulator fan of this utility model, please refer to... Figure 1 An air circulator fan includes an airflow guiding structure 10, a housing 20, a front grille 30, and a rear grille 40. The airflow guiding structure 10 is disposed inside the housing 20, and the front grille 30 and the rear grille 40 are respectively disposed at the front and rear ends of the housing 20.

[0032] Among them, reference Figures 2 to 4The circulating fan airflow guiding structure 10 includes a cylindrical shell 100, which includes an air inlet 101 and an air outlet 102. Several guide ribs 200 are distributed on the inner wall of the cylindrical shell 100 near the air inlet 101. The guide ribs 200 extend towards the center of the cylindrical shell 100, and guide grooves 201 are formed between adjacent guide ribs 200. The inner wall of the cylindrical shell 100 is also provided with crossflow baffles 210 extending from the ends of the guide ribs 200 towards the air outlet 102.

[0033] The air circulator fan in the above embodiment has a guide rib 200 inside the casing 100, which forms a guide groove 201. Therefore, the airflow can be regulated through the guide groove 201, effectively preventing mutual interference of airflows. This results in a more stable airflow from the outlet 102, with higher airflow speed and force, and a longer airflow distance. Furthermore, since the airflow velocity and pressure are higher closer to the inner wall of the casing 100 when the fan blades rotate at high speed, a flow-crossing baffle 210 extending towards the outlet 102 is provided on the inner wall of the casing 100. By isolating and guiding the airflow to the outer ring through the flow-crossing baffle 210, the airflow to the outer ring can be better guided, avoiding mutual interference and flow-crossing of the outer ring airflows. This further ensures the airflow velocity and pressure output from the outlet.

[0034] Furthermore, refer to Figures 2 to 4 The radial cross-section of the guide rib 200 is a helical structure, and the flow-crossing baffle 210 and the guide rib 200 are integrally formed. In this embodiment, the direction of the guide rib 200's bending from the inside out can be the same as the rotation direction of the circulating fan blades, so the guide rib 200 is consistent with the airflow direction formed by the fan blades, thus better guiding the airflow. The integral formation of the flow-crossing baffle 210 and the guide rib 200 ensures that they have the same helical surface, guaranteeing the stability of the airflow output.

[0035] Furthermore, refer to Figure 1 The front mesh 30 is provided with a spiral rib 31 that bends in the opposite direction to the guide rib 200. Specifically, in this embodiment, the airflow output from the guide groove 201 is cut by the spiral rib 31 and blown out through the gap between the spiral rib 31 to form a spiral airflow and increase the distance of the airflow.

[0036] Furthermore, refer to Figures 2 to 4 The inner cylinder 120 is also provided inside the shell 100. The inner cylinder 120 and the shell 100 form an annular air duct. One end of the guide rib 2000 is connected to the inner wall of the shell 100, and the other end is connected to the outer wall of the inner cylinder 120.

[0037] Furthermore, refer to Figures 2 to 4The end face of the inner cylinder 120 is flush with the air outlet 102 of the outer shell 100, thereby increasing the effective length of the annular air duct.

[0038] Furthermore, refer to Figures 2 to 4 A baffle 130 is provided at the end of the inner cylinder 120 closer to the air inlet 101. The baffle 130 seals the opening of the inner cylinder 120, and the baffle 130 and the inner cylinder 120 form a cavity 121. Control circuits and other components can be installed inside the cavity 121. In addition, the baffle 130 can prevent airflow from entering the inner cylinder 120 and consuming airflow.

[0039] Furthermore, refer to Figures 2 to 4 The baffle 130 is recessed into the cavity 121 to form a mounting cavity 131. The fan motor can be installed into the mounting cavity 131.

[0040] Furthermore, refer to Figures 2 to 4 The air outlet 102 of the cylinder shell 100 is provided with an inwardly contracting compression cone ring 110. Therefore, the air outlet 102 can be narrowed to compress the airflow, increase the airflow pressure, and enable the airflow to be blown a farther distance.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airflow guiding structure for a circulating fan, disposed within an air circulating fan to form the air duct of the air circulating fan, characterized in that, The device includes a cylindrical shell, which has an air inlet and an air outlet. The inner sidewall of the cylindrical shell is provided with a plurality of guide ribs near the air inlet. The guide ribs extend toward the center of the cylindrical shell, and a guide groove is formed between adjacent guide ribs. The inner sidewall of the cylindrical shell is also provided with a flow-crossing baffle extending from the end of the guide ribs toward the air outlet.

2. The airflow guiding structure of the circulating fan according to claim 1, characterized in that: The radial cross-section of the flow guide plate is a spiral structure, and the flow-crossing baffle and the flow guide plate are integrally formed.

3. The airflow guiding structure of the circulating fan according to claim 1, characterized in that: The shell is further provided with an inner cylinder, which forms an annular air duct with the shell. One end of the guide rib is connected to the inside of the shell, and the other end is connected to the outer wall of the inner cylinder.

4. The airflow guiding structure of the circulating fan according to claim 3, characterized in that: The end face of the inner cylinder is flush with the air outlet of the outer shell.

5. The airflow guiding structure of the circulating fan according to claim 3, characterized in that: The inner cylinder is provided with a baffle at the end closer to the air inlet. The baffle seals the opening of the inner cylinder and forms a cavity with the inner cylinder.

6. The airflow guiding structure of the circulating fan according to claim 5, characterized in that: The baffle is recessed into the cavity to form an installation cavity.

7. The airflow guiding structure for a circulating fan according to any one of claims 1 to 6, characterized in that: The air outlet of the cylinder shell is provided with an inwardly contracting compression cone ring.

8. An air circulator fan, characterized in that, The circulating fan airflow guiding structure according to any one of claims 1 to 7 further includes a housing, a front mesh and a rear mesh, wherein the cylindrical shell is disposed inside the housing, and the front mesh and the rear mesh respectively cover the front and rear ends of the housing.

9. The air circulator fan according to claim 8, characterized in that: The front mesh is provided with spiral ribs that bend in the opposite direction to the flow guide ribs.

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