A fan frame body having a flow guide groove

Abstract

The utility model provides a fan frame body with flow guide groove, including bottom plate, fan blade group and front plate, bottom plate and front plate are mutually buckled through a plurality of buckle assembly, bottom plate is equipped with air inlet, bottom plate and front plate cooperate and form and have air outlet in bottom, bottom plate includes flow guide portion and gradually expands the part, bottom plate inner wall has flow guide groove, gradually expands the part and is close to air outlet setting. The utility model has the advantages that: through gradually expanding formula flow passage formed by flow guide portion and fan blade group, cooperate the flow guide groove with arc transition of inner wall, can reduce airflow vortex and resistance, promote flow stability, the design of gradually expanding portion's more flared mouth and outside tongue mouth, further optimize air outlet airflow distribution, improve the air supply efficiency, reduce the operation noise, the overall enhanced the use performance of fan.

Description

Technical Field

[0001] This utility model mainly relates to the field of fan technology, specifically to a fan frame with a guide groove. Background Technology

[0002] In the field of fan equipment, the fan frame is the core component that guides airflow. Its structural design plays a key role in air delivery efficiency and noise level. In the existing technology, many fan frames have unreasonable flow channel design. When the airflow flows in the frame, the resistance is large and eddies and turbulence are easily formed, which not only reduces the air delivery efficiency, but also generates a lot of operating noise.

[0003] Especially for centrifugal fans and other types of fans that require precise airflow guidance, the existing frame structure often cannot achieve efficient and stable airflow diffusion. As a result, after the airflow enters from the air inlet, it suffers severe energy loss as it flows to the air outlet under the action of the fan blades. The air delivery distance and airflow uniformity are difficult to achieve the ideal state, which affects the airflow guidance effect.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: This utility model provides a fan frame with a guide groove to solve the technical problems existing in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a fan frame with a guide groove, comprising a base plate, a fan blade assembly, and a front plate. The base plate and the front plate are fastened together by multiple snap-fit ​​components. An air inlet is provided on the base plate. After the base plate and the front plate are fitted together, an air outlet is formed at the bottom. The base plate includes a guide section and a gradually expanding section. A guide groove is provided on the inner wall of the base plate. The gradually expanding section is located near the air outlet.

[0007] Furthermore, a gradually expanding flow channel is formed between the guide section and the fan blade assembly, and the gradually expanding flow channel extends along the guide section to the air outlet.

[0008] Furthermore, the guide groove includes a protrusion with concave portions at both ends, and the concave portions are connected to the base plate by a circular arc transition.

[0009] Furthermore, the expanding portion includes a first flare, and the first flare has a second flare and a third flare on each side.

[0010] Furthermore, the first flare and the guide portion, the second flare and the third flare are all connected by a rounded transition.

[0011] Furthermore, a tongue opening is provided on one side of the base plate, and the tongue opening is located on the outer side of the flared opening.

[0012] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: The gradually expanding flow channel formed by the guide section and the fan blade assembly, combined with the guide groove with a rounded transition on the inner wall, can reduce airflow eddies and resistance, improve flow stability, and further optimize the airflow distribution at the outlet by the multi-expansion design of the gradually expanding section and the outer tongue, thereby improving air delivery efficiency, reducing operating noise, and enhancing the overall performance of the fan.

[0013] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the base plate structure of this utility model; Figure 5 This is a schematic diagram of the base plate structure from another angle of this utility model; Figure 6 This is a cross-sectional view of the flow channel structure of this utility model.

[0015] Figure label: 1. Base plate; 101. Air guide section; 102. Gradual expansion section; 1021. Flange 1; 1022. Flange 2; 1023. Flange 3; 103. Air guide groove; 1031. Protrusion; 1032. Recess; 104. Gradual expansion flow channel; 2. Fan blade assembly; 3. Front plate; 4. Snap-fit ​​assembly; 5. Air inlet; 6. Air outlet; 7. Tongue. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] See attached document Figure 1-6 A fan frame with a guide groove includes a base plate 1, a fan blade assembly 2 and a front plate 3. The base plate 1 and the front plate 3 are fastened together by multiple snap-fit ​​components 4. An air inlet 5 is provided on the base plate 1. After the base plate 1 and the front plate 3 are fitted together, an air outlet 6 is formed at the bottom. The base plate 1 includes a guide section 101 and a gradually expanding section 102. A guide groove 103 is provided on the inner wall of the base plate 1. The gradually expanding section 102 is located near the air outlet 6.

[0021] The base plate 1 and the front plate 3 are assembled to form the fan frame. The two are fastened together by multiple snap-fit ​​components 4. The snap-fit ​​connection not only makes installation convenient, but also ensures the stability of the connection between the two, so that the entire frame maintains structural stability during fan operation. The base plate 1 has an air inlet 5, which is the channel for air to enter the fan frame. After the base plate 1 and the front plate 3 are put together, the bottom forms an air outlet 6, which is used to exhaust the air after it has passed through the fan blade assembly 2.

[0022] The base plate 1 includes a guide section 101 and a gradually expanding section 102. The gradually expanding section 102 is located near the air outlet 6. A gradually expanding flow channel 104 is formed between the guide section 101 and the fan blade assembly 2. The flow channel extends along the guide section 101 to the air outlet 6. When air enters from the air inlet 5, it is driven by the fan blade assembly 2. The gradually expanding flow channel 104 allows the air to gradually and smoothly diffuse during the flow process, effectively reducing the flow resistance of the airflow, improving the air delivery efficiency, and allowing the air to be discharged more smoothly from the air outlet 6.

[0023] The inner wall of the base plate 1 has a guide groove 103. The guide groove 103 includes a protrusion 1031 and two concave portions 1032 at both ends of the protrusion 1031. The concave portions 1032 and the base plate 1 are connected by an arc transition, so that when the air passes through the guide groove 103, it can flow smoothly along the arc transition of the concave portions 1032 and the protrusion 1031, reducing the eddy currents and impacts of the airflow, further optimizing the airflow state, and improving the fan's air delivery effect.

[0024] The expanding section 102 includes a first flare 1021, and two flares 1022 and three flares 1023 on both sides of the first flare 1021. The three-sided flare design accelerates the airflow discharge speed. The first flare 1021 and the guide section 101, the second flare 1022 and the third flare 1023 are all arc transitions, which makes the airflow smoother when passing through the expanding section 102, avoids large flow loss due to structural abrupt changes, and ensures that the air can be discharged from the air outlet 6 efficiently.

[0025] The base plate 1 is also provided with a tongue 7 on one side. The tongue 7 is located outside the flare 3 1023. When the fan is running, the tongue 7 can guide and regulate the airflow. Together with the flares of the gradually expanding part 102, it can further optimize the airflow distribution at the air outlet 6, making the exhaust air more uniform and stable, and improving the overall air delivery performance of the fan.

[0026] In summary, the fan frame is composed of a base plate 1 and a front plate 3 fastened together by a snap-fit ​​assembly 4, and is equipped with a fan blade assembly 2. The base plate 1 has an air inlet 5, which, together with the front plate 3, forms an air outlet 6. Its guide section 101 and the expanding section 102 form a gradually expanding flow channel 104. The inner wall is provided with a guide groove 103 composed of protrusions and concave parts to optimize airflow. The flaring and arc transition of the expanding section 102, together with the outer tongue 7, can reduce airflow resistance and improve air delivery efficiency and effect.

[0027] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fan frame with a guide groove, comprising a base plate (1), a fan blade assembly (2), and a front plate (3), characterized in that: The base plate (1) and the front plate (3) are fastened together by multiple snap-fit ​​components (4). An air inlet (5) is provided on the base plate (1). After the base plate (1) and the front plate (3) are fitted together, an air outlet (6) is formed at the bottom. The base plate (1) includes a guide section (101) and a gradually expanding section (102). A guide groove (103) is provided on the inner wall of the base plate (1). The gradually expanding section (102) is located near the air outlet (6).

2. The fan frame with guide grooves according to claim 1, characterized in that: A gradually expanding flow channel (104) is formed between the guide section (101) and the fan blade assembly (2), and the gradually expanding flow channel (104) extends along the guide section (101) to the air outlet (6).

3. The fan frame with guide grooves according to claim 1, characterized in that: The guide groove (103) includes a protrusion (1031), and the two ends of the protrusion (1031) have concave portions (1032), and the concave portions (1032) are connected to the base plate (1) by a circular arc transition.

4. The fan frame with guide grooves according to claim 1, characterized in that: The expanding portion (102) includes a first flare (1021), and the two sides of the first flare (1021) have a second flare (1022) and a third flare (1023) respectively.

5. The fan frame with guide grooves according to claim 4, characterized in that: The first flare (1021) and the guide section (101), the second flare (1022) and the third flare (1023) are all connected by a rounded transition.

6. The fan frame with guide grooves according to claim 5, characterized in that: The bottom plate (1) is also provided with a tongue opening (7) on one side, and the tongue opening (7) is located outside the flared opening three (1023).

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