Fan frame capable of adjusting airflow direction

Abstract

The utility model discloses a fan frame capable of adjusting the airflow direction, and belongs to the technical field of fan frames. The impeller comprises a frame body, a frame body center piece and a plurality of stationary blades with one ends connected with the frame body and the other ends connected with the frame body center piece. The stationary blades comprise the non-detachable stationary blades and the detachable stationary blades, and the non-detachable stationary blades and the detachable stationary blades are distributed in a staggered mode. According to the technical scheme, the airflow diffusion range is adjusted by adjusting the number of the fixed blades, so that the heat dissipation requirements of different products are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan frames, and in particular relates to a fan frame capable of adjusting the direction of airflow. Background Art

[0002] A cooling fan consists of a fan frame, a fan shaft, and rotor blades. The rotor blades rotate relative to the fan frame, generating airflow. Air enters the fan frame at one end and exits at the other, meaning it enters through the fan frame's air inlet and exits through the air outlet. Stationary blades are located at the fan frame's air outlet. Their primary function is to change the direction and velocity of the airflow, regulating air volume and pressure.

[0003] Conventional stator blades typically consist of multiple curved blades that are integrally molded with the fan frame. This means the angles of the stator blades on the fan frame and the spacing between adjacent stator blades are fixed, resulting in a fixed airflow range and velocity from the air outlet.

[0004] Therefore, fan frames have low compatibility with various products. When the product's internal structure is compact, there will be a problem of insufficient localized cooling wind force. When the product's internal structure is loose, there will be a problem of insufficient cooling coverage. To address these issues, the current method is to replace different fan frames for different products, which increases costs. Utility Model Content

[0005] The utility model provides a fan frame with adjustable airflow direction, which is used to solve the problem that the degree of airflow diffusion at the air outlet of the current fan cannot be regulated.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a fan frame with adjustable airflow direction, comprising a frame body, a frame center piece, and a plurality of static blades connected to the frame body at one end and connected to the frame center piece at the other end;

[0007] The stationary blades include non-detachable stationary blades and detachable stationary blades, and the non-detachable stationary blades and the detachable stationary blades are staggered.

[0008] Specifically, the plurality of stationary blades are arranged in a ring array.

[0009] Specifically, the non-detachable stationary blades, the frame and the frame center piece are integrally formed by injection molding.

[0010] Specifically, a wire groove is provided on any one of the non-detachable stationary blades.

[0011] Specifically, the inner wall of the frame is provided with a plurality of first notches, the center piece of the frame is provided with a plurality of second notches corresponding to the first notches one by one, one end of the detachable stationary blade is buckled with the first notch, and the other end is buckled with the second notch.

[0012] Specifically, the detachable stationary blade includes a first stationary blade, which includes an integrally formed first blade body, a first blade tip and a first blade root. The first blade tip is T-shaped, and the first notch includes a T-shaped slot tightly fitted with the first blade tip.

[0013] Specifically, the detachable stationary blade also includes a second stationary blade, which includes an integrally formed second blade body, a second blade tip and a second blade root. The second blade tip is wedge-shaped, and the first notch also includes a wedge-shaped groove tightly fitted with the second blade tip.

[0014] Specifically, the width of the second notch gradually decreases from the bottom of the notch to the notch opening.

[0015] The technical solution provided by the utility model has the following advantages compared with the existing technology:

[0016] Adjusting the number of stator blades adjusts the airflow diffusion range to meet the cooling requirements of different products. For products with compact internal structures, increasing the number of stator blades will help maintain a concentrated airflow after passing through them, while simultaneously increasing wind pressure and enhancing localized cooling. For products with loose internal structures, reducing the number of stator blades will help diffuse the airflow after passing through them, expanding the cooling area and ensuring comprehensive cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of the fan frame in an embodiment of the present utility model;

[0018] Figure 2 This is a structural diagram of the fan frame in the embodiment of the utility model without detachable stationary blades installed;

[0019] Figure 3 This is an exploded view of the fan frame in the embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of the first stationary blade in an embodiment of the present utility model;

[0021] Figure 5 This is a structural diagram of the second stationary blade in an embodiment of the present utility model;

[0022] Figure 6 This utility model Figure 3 A partial enlarged view of the middle A;

[0023] Figure 7 This utility model Figure 3 A partial enlarged view of point B in the middle;

[0024] Figure 8 This is a schematic diagram of airflow when the detachable stationary blades are not installed in the embodiment of the present utility model;

[0025] Figure 9It is a schematic diagram of airflow when detachable stationary blades are installed in an embodiment of the present invention.

[0026] As shown in the figure: 1. Frame; 2. Frame center piece; 3. Bushing; 4. Non-detachable stator blade; 5. Removable stator blade; 51. First stator blade; 511. First blade body; 512. First blade tip; 513. First blade root; 52. Second stator blade; 521. Second blade body; 522. Second blade tip; 523. Second blade root; 53. Third stator blade; 6. Wire groove; 7. T-slot; 8. Wedge groove; 9. Second notch. DETAILED DESCRIPTION

[0027] For ease of understanding, the fan frame with adjustable airflow direction is described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations and positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 As shown, the fan frame with adjustable airflow direction in this embodiment includes a frame 1, a frame center piece 2, a shaft sleeve 3 and a stator blade. The frame center piece 2 is provided at the center of the frame 1, and the shaft sleeve 3 is fixedly connected to the center of the frame center piece 2. There is an annular gap between the frame 1 and the frame center piece 2, and six stator blades are provided in the annular gap. The six stator blades are arranged in a circular array, and one end of each stator blade is connected to the frame 1, and the other end is connected to the frame center piece 2.

[0031] Continue as Figure 1As shown, the stator blades include non-detachable stator blades 4 and detachable stator blades 5. The non-detachable stator blades 4 and detachable stator blades 5 are arranged in a staggered manner. That is, there are three non-detachable stator blades 4 and three detachable stator blades 5, and there is a detachable stator blade 5 between adjacent non-detachable stator blades 4. By reducing or increasing the number of detachable stator blades 5, the spacing between adjacent non-detachable stator blades 4, that is, the degree of airflow diffusion, is adjusted.

[0032] like Figure 2 As shown, the non-detachable stationary blade 4, the frame 1 and the frame center piece 2 are integrally formed by injection molding. A wire groove 6 is provided on one of the three non-detachable stationary blades 4.

[0033] like Figure 3 As shown, the inner wall of the frame 1 is circumferentially defined with three first notches, and the centerpiece 2 is circumferentially defined with three second notches 9, with each first notch corresponding to the second notches 9. One end of the detachable stator blade 5 engages with the first notch, and the other end engages with the second notch 9. The three first notches include two T-slots 7 and one wedge-shaped slot 8. The detachable stator blade 5 includes a first stator blade 51, a second stator blade 52, and a third stator blade 53. The first and second stator blades 51, 52 each engage with a T-slot 7, and the third stator blade 53 engages with the wedge-shaped slot 8.

[0034] like Figure 4 As shown, the first stator blade 51 and the third stator blade 53 have the same structure. Taking the first stator blade 51 as an example, the first stator blade 51 includes an integrally formed first blade body 511, a first blade tip 512 and a first blade root 513. The first blade tip 512 is located at one end of the first blade body 511, and the first blade root 513 is located at the other end of the first blade body 511. The first blade tip 512 is T-shaped.

[0035] like Figure 5 As shown, the second stationary blade 52 includes an integrally formed second blade body 521, a second blade tip 522 and a second blade root 523. The second blade tip 522 is located at one end of the second blade body 521, and the second blade root 523 is located at the other end of the second blade body 521. The second blade tip 522 is wedge-shaped.

[0036] like Figure 6 As shown, the notch of the T-shaped slot 7 is provided on the inner wall of the frame 1. The T-shaped slot 7 has two sections. Of the two sections, the one with the smaller width is closer to the notch. The first blade tip 512 is tightly fitted with the T-shaped slot 7.

[0037] like Figure 7 As shown, the opening of the wedge-shaped groove 8 is provided on the inner wall of the frame 1, and the width of the wedge-shaped groove 8 gradually decreases from the bottom of the groove to the opening of the groove. The second blade tip 522 is tightly fitted with the wedge-shaped groove 8.

[0038] like Figures 6 and 7As shown, the three second notches 9 are also wedge-shaped, located on the outer wall of the frame centerpiece 2. The width of the second notches 9 gradually decreases from the bottom to the top. Both the first blade root 513 and the second blade root 523 are wedge-shaped plates, each curved into an arc. The first blade root 513 and the second blade root 523 are tightly fitted with the corresponding second notches 9. When the wall thickness of the frame 1 or the frame centerpiece 2 is relatively thin, using a wedge-shaped groove to fasten the removable stator blades 5 prevents the removable stator blades 5 from detaching while also meeting installation requirements.

[0039] like Figure 8 As shown, when the detachable stator blades 5 are not installed, the direction of the airflow generated by the operation of the fan is parallel to the fan axis, and the fluid enters the fan blade along the central axis of the fan blade and flows out divergently along the center of the fan blade.

[0040] like Figure 9 As shown, when the detachable static blade 5 is installed, the direction of the airflow generated by the operation of the fan is parallel to the fan axis, and the fluid enters the fan blade along the central axis of the fan blade and flows out in a concentrated manner along the center of the fan blade.

[0041] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some or all of the technical features therein may be replaced with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of the present invention.

Claims

1. A fan frame with adjustable airflow direction, characterized in that: It includes a frame, a frame center piece, and a plurality of stationary blades connected to the frame at one end and connected to the frame center piece at the other end; The stationary blades include non-detachable stationary blades and detachable stationary blades, and the non-detachable stationary blades and the detachable stationary blades are staggered.

2. The fan frame with adjustable airflow direction according to claim 1, wherein: The plurality of stationary blades are arranged in a ring array.

3. The fan frame with adjustable airflow direction according to claim 1, wherein: The non-detachable stationary blades, the frame and the frame center piece are integrally formed by injection molding.

4. The fan frame with adjustable airflow direction according to claim 3, wherein: A wire groove is provided on any one of the non-detachable stationary blades.

5. The fan frame with adjustable airflow direction according to claim 1, wherein: The inner wall of the frame is provided with a plurality of first notches, the center piece of the frame is provided with a plurality of second notches corresponding to the first notches one by one, one end of the detachable stationary blade is buckled with the first notch, and the other end is buckled with the second notch.

6. The fan frame with adjustable airflow direction according to claim 5, wherein: The detachable stationary blade includes a first stationary blade, which includes an integrally formed first blade body, a first blade tip and a first blade root. The first blade tip is T-shaped, and the first notch includes a T-shaped slot tightly fitted with the first blade tip.

7. The fan frame with adjustable airflow direction according to claim 6, wherein: The detachable stationary blade also includes a second stationary blade, which includes an integrally formed second blade body, a second blade tip and a second blade root. The second blade tip is wedge-shaped, and the first notch also includes a wedge-shaped groove tightly fitted with the second blade tip.

8. The fan frame with adjustable airflow direction according to claim 5, wherein: The width of the second notch gradually decreases from the bottom of the notch to the notch opening.

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