Air guide structure of cooling fan

Abstract

The air guide structure comprises a frame, an air guide cover is installed on the frame, a plurality of air guide blades are arranged on the air guide cover, a middle air guide disc is detachably installed in the center of the air guide cover, the middle air guide disc is in a conical shape, an opening in the small-caliber side of the middle air guide disc is an air outlet, and the opening in the small-caliber side of the middle air guide disc is an air outlet. An opening in one side with a larger caliber is an air inlet; a plurality of partition blades are fixedly arranged on the inner wall of the middle air guide disc, an air inlet of the middle air guide disc is connected with a fan blade installation part, and fan blades are connected to the fan blade installation part through a shaft. The air guide cover and the middle air guide disc are installed on the frame, the middle air guide disc is in a conical shape, the side, with the small diameter, of the middle air guide disc is provided with the air outlet, the side, with the large diameter, of the middle air guide disc is provided with the air inlet, and the design is beneficial for concentrating wind power, increasing wind pressure and improving the air flowing efficiency and distance; wind power distribution is further optimized, wind power dispersion is reduced, and wind power can be output more intensively.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, in particular to an air guide structure of a heat dissipation fan. Background Art

[0002] In modern industry and daily life, fans and ventilation equipment are important tools for regulating air flow and improving air quality. Traditional cooling equipment, during operation, has problems with insufficient wind force and pressure output due to short air ducts, resulting in the inability to achieve the ideal wind force and pressure, thereby limiting the efficiency and distance of air flow. In addition, the design of the air outlet also directly affects the distribution and concentration of wind force. Traditional air outlets lack an effective air guide structure, resulting in dispersed wind force and the inability to output it in a concentrated manner. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the utility model provides a heat dissipation fan air guide structure.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] A heat dissipation fan air guide structure comprises a frame, an air guide cover is mounted on the frame, a plurality of air guide blades are provided on the air guide cover, a central air guide plate is detachably mounted on the central portion of the air guide cover, the central air guide plate is conical in shape, a side opening with a smaller diameter is an air outlet, and a side opening with a larger diameter is an air inlet;

[0006] A plurality of partition blades are fixedly provided on the inner wall of the central air guide plate, an air inlet of the central air guide plate is connected with a fan blade mounting portion, and an upper shaft of the fan blade mounting portion is connected with a fan blade.

[0007] Furthermore, the diameter of the air outlet of the air guide cover is larger than that of the air inlet.

[0008] Furthermore, the depths of the air guide cover and the central air guide plate do not exceed 2 / 5 of the depth of the frame.

[0009] Furthermore, the air guide cover is parallel to the air inlet of the central air guide plate, and the distance between the air inlet of the air guide cover and the fan blades is at least 1 / 5 of the frame depth and at most 2 / 5 of the frame depth.

[0010] Furthermore, the number of partition blades of the central air guide plate is 4 to 8.

[0011] Furthermore, a mounting opening for mounting a central air guide plate is provided in the middle of the air guide cover, and a plurality of positioning mounting strips are protruded on the outer wall of the central air guide plate.

[0012] Furthermore, a plurality of mounting grooves corresponding to the positions and matching the shapes of the mounting strips are reserved on the inner wall of the mounting opening, and the mounting strips are connected to the mounting grooves.

[0013] Furthermore, a bearing for engaging with a fan blade shaft is fixedly installed in the fan blade mounting portion.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model discloses a fan that is provided with a fan, and the fan is provided with a fan, and the fan is provided with a fan, and the fan is provided with a fan.

[0016] At the same time, the utility model also increases the distance between the wind guide cover and the fan blades, thereby increasing the length of the air duct inside the frame, which helps to output the airflow more stably. Combined with the wind guide cover and the central air guide plate, it can solve the problem of existing heat dissipation equipment that the wind duct is short, the wind force and wind pressure output are insufficient, resulting in the wind force and wind pressure cannot achieve the ideal effect, thereby limiting the efficiency and distance of air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a heat dissipation fan air guide structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a cooling fan air guide structure of the utility model.

[0019] Figure 3 This is a side view of a heat dissipation fan air guide structure of the utility model;

[0020] Figure 4 for Figure 3 Cross-sectional view along the A-A direction;

[0021] Figure 5 for Figure 3 Cross-sectional view along the B-B direction.

[0022] 1. Frame; 2. Air guide cover; 3. Air guide blades; 4. Central air guide plate; 5. Partition blades; 6. Fan blade mounting portion; 7. Fan blades; 8. Mounting port; 9. Mounting strip; 10. Mounting slot; 11. Bearing. DETAILED DESCRIPTION

[0023] In order to make the purposes, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figure 1-5 As shown, a cooling fan air guide structure includes a frame 1, an air guide cover 2 is installed on the frame 1, and a plurality of air guide blades 3 are provided on the air guide cover 2. A central air guide plate 4 is detachably installed at the center of the air guide cover 2. The central air guide plate 4 is conical in shape, with a smaller opening on the side serving as an air outlet and a larger opening on the side serving as an air inlet.

[0025] A plurality of partition blades 5 are fixedly provided on the inner wall of the middle air guide plate 4 , and the air inlet of the middle air guide plate 4 is connected to a fan blade mounting portion 6 , and a fan blade 7 is connected to the upper axis of the fan blade mounting portion 6 .

[0026] In this embodiment, by designing the wind guide cover 2 and the central air guide plate 4, especially the central air guide plate 4 is conical, the side with a smaller diameter is the air outlet, and the side with a larger diameter is the air inlet. Such a design helps to concentrate wind force and increase wind pressure, thereby improving the efficiency and distance of air flow; the several air guide blades 3 arranged on the wind guide cover 2 and the partition blades 5 fixed on the inner wall of the central air guide plate 4 can effectively guide and concentrate wind force, reduce the dispersion of wind force, and make the wind force output more concentrated.

[0027] Furthermore, the diameter of the air outlet of the air guide cover 2 is larger than that of the air inlet.

[0028] Furthermore, the depths of the air guide cover 2 and the central air guide plate 4 do not exceed 2 / 5 of the depth of the frame 1 .

[0029] The diameter of the air outlet of the air guide cover 2 is larger than its air inlet. This design helps to further increase the wind output. At the same time, the depth of the air guide cover 2 and the central air guide plate 4 does not exceed 2 / 5 of the depth of the frame 1. This ratio helps to maintain the smoothness of the air flow inside the frame 1, reduce the occupation of the internal space of the frame 1 by the air guide cover 2, and optimize the distribution and concentration of wind force inside the frame 1.

[0030] Furthermore, the air guide cover 2 is parallel to the air inlet of the central air guide plate 4, and the distance between the air inlet of the air guide cover 2 and the fan blades 7 is at least 1 / 5 of the depth of the frame 1 and at most 2 / 5 of the depth of the frame 1, which can ensure the length of the air duct to improve the air flow efficiency and distance.

[0031] Furthermore, the number of partition blades 5 of the central air guide plate 4 is 4 to 8.

[0032] Furthermore, a mounting opening 8 for mounting the central air guide plate 4 is provided in the middle of the air guide cover 2 , and a plurality of positioning mounting strips 9 are protruded from the outer wall of the central air guide plate 4 .

[0033] Furthermore, a plurality of mounting grooves 10 corresponding in position and matching in shape to the mounting strips 9 are reserved on the inner wall of the mounting opening 8 , and the mounting strips 9 are slotted into the mounting grooves 10 .

[0034] The central air guide plate 4 in this embodiment is a detachable component. In some embodiments, the central air guide plate 4 can be removed so that the air flow is blown out from the installation port 8, which can also improve the blowing distance and concentration. However, due to the lack of the guiding function of the partition blade 5, the effect is relatively poor.

[0035] Furthermore, a bearing 11 for engaging with the rotating shaft of the fan blade 7 is fixedly installed in the fan blade mounting portion 6.

[0036] In this embodiment, the fan blades 7 are equipped with a rotor motor, which enables the fan blades 7 to rotate at high speed. The fan blades 7 need to be connected to an external power source through wires to ensure their normal operation.

[0037] The working process and principle of this utility model are as follows:

[0038] The utility model realizes the effective improvement of wind force and wind pressure and the optimization of wind force distribution through its unique heat dissipation fan air guide structure. When the fan is started, the rotating fan blades 7 generate air flow. This air flow is first guided to the air inlet of the middle air guide plate 4. The air guide plate is conical in shape, which helps to concentrate and accelerate the air flow; the air flow is further concentrated and accelerated when passing through the partition blades 5 on the inner wall of the air guide plate, increasing the wind pressure; then, the air flow is shaped and directed by the air guide blades 3 on the air guide cover 2, so that the wind force is more concentrated and output in a specific direction. The air outlet diameter of the air guide cover 2 is larger than the air inlet, further enhancing the wind force; at the same time, the depth of the air guide cover 2 and the middle air guide plate 4 is controlled within 2 / 5 of the depth of the frame 1, which optimizes the wind force distribution, and the precise distance control between the air inlet of the air guide cover 2 and the fan blades 7 improves the concentration and efficiency of the wind force; in addition, the middle air guide plate 4 is matched with the mounting slot 10 of the air guide cover 2 through the positioning mounting strip 9, ensuring the stability of the structure and the convenience of installation.

[0039] The above detailed description of the specific embodiments of the utility model is intended only as an example. The utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the above embodiments and descriptions are merely illustrative of the principles of the utility model. Various changes and improvements may be made to the utility model without departing from the spirit and scope of the utility model. Such changes and improvements fall within the scope of the utility model for which protection is sought. The scope of protection claimed in the utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling fan air guide structure, characterized by: The invention comprises a frame (1), an air guide cover (2) is installed on the frame (1), a plurality of air guide blades (3) are provided on the air guide cover (2), a central air guide plate (4) is detachably installed at the central portion of the air guide cover (2), and the central air guide plate (4) is conical in shape, with a side opening with a smaller diameter serving as an air outlet and a side opening with a larger diameter serving as an air inlet; A plurality of partition blades (5) are fixedly provided on the inner wall of the middle air guide plate (4); the air inlet of the middle air guide plate (4) is connected to a fan blade mounting portion (6); and the upper axis of the fan blade mounting portion (6) is connected to a fan blade (7).

2. The heat dissipation fan air guide structure according to claim 1, characterized in that: The diameter of the air outlet of the air guide cover (2) is larger than that of the air inlet.

3. The heat dissipation fan air guide structure according to claim 1, characterized in that: The depths of the air guide cover (2) and the middle air guide plate (4) do not exceed 2 / 5 of the depth of the frame (1).

4. The heat dissipation fan air guide structure according to claim 1, characterized in that: The air guide cover (2) is parallel to the air inlet of the middle air guide plate (4), and the distance between the air inlet of the air guide cover (2) and the fan blades (7) is at least 1 / 5 of the depth of the frame (1) and at most 2 / 5 of the depth of the frame (1).

5. The heat dissipation fan air guide structure according to claim 1, characterized in that: The number of partition blades (5) of the middle air guide plate (4) is 4 to 8.

6. The heat dissipation fan air guide structure according to claim 1, characterized in that: The middle portion of the air guide cover (2) is provided with an installation opening (8) for installing a middle air guide plate (4), and the outer wall of the middle air guide plate (4) is provided with a plurality of positioning installation strips (9) protruding thereon.

7. The heat dissipation fan air guide structure according to claim 6, characterized in that: The inner wall of the installation opening (8) is reserved with a plurality of installation grooves (10) corresponding in position and matching in shape with the installation strips (9), and the installation strips (9) are connected to the installation grooves (10).

8. The heat dissipation fan air guide structure according to claim 1, characterized in that: A bearing (11) for engaging with a rotating shaft of a fan blade (7) is fixedly mounted in the blade mounting portion (6).

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