Fan

Abstract

The utility model discloses a fan, which relates to the field of fans, and adopts the technical scheme that the fan comprises a shell, two ends of the shell are fixedly connected with mounting plates, the outer diameter of each mounting plate is larger than that of the shell, a plurality of support frames are fixedly connected between the two mounting plates, and the axes of the support frames are parallel to the axis of the shell; the supporting frames are arranged in a circumferential array around the shell, a plurality of anti-collision frames are fixedly connected to the sides, away from the shell, of the supporting frames, and the anti-collision frames are arranged in a linear array in the axis direction of the shell. The gaps exist between the supporting frames and the shell, the anti-collision frames and the shell are separated, the heat dissipation area of the surface of the shell is guaranteed, the supporting frames and the anti-collision frames further increase the heat dissipation area of the surface of the draught fan, the anti-collision frames and the supporting frames which are staggered form a net-shaped structure on the outer side of the shell, the shell is protected, and the service life of the draught fan is prolonged. And collision between the shell and the outside is reduced, deformation of the shell is avoided, and the service life of the fan is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fan field, more specifically, it relates to a fan. BACKGROUND

[0002] The fan is a kind of equipment for driving gas flow, air is sent to the other side of fan by the rotation of fan blade, and airflow is formed, for the purpose of protection and reducing dust accumulation on fan blade, a layer of casing is covered outside fan, to reduce the contact between fan blade and outside, however, the thickness of existing casing cannot be too large due to the need of heat dissipation, so when colliding with outside, casing is prone to deformation, which causes the fan inside casing to be disturbed. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a fan.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a fan, comprising a shell, both ends of the shell are fixedly connected with mounting plates, the outer diameter of the mounting plate is larger than the outer diameter of the shell, a plurality of support frames are fixedly connected between the two mounting plates, the axis of the support frame is parallel to the axis of the shell, the support frame is arranged in circumferential array around the shell, a plurality of anti-collision frames are fixedly connected to the side of the support frame away from the shell, and the anti-collision frames are arranged in linear array along the axis direction of the shell.

[0005] The utility model is further provided as follows: the anti-collision frame is in the shape of a poor arc.

[0006] The utility model is further provided as follows: along the cylindrical direction of the shell, the anti-collision frames are grouped into several groups, a plurality of mounting holes are arranged through the mounting plate, and the mounting holes are located between adjacent two groups of anti-collision frames.

[0007] The utility model is further provided as follows: the side of the anti-collision frame away from the shell is fixedly connected with a guard plate, the guard plate connects adjacent two groups of anti-collision frames, and the inner diameter of the guard plate is larger than the outer diameter of the mounting plate.

[0008] The utility model is further provided as follows: the length of the guard plate is less than the distance between the two mounting plates.

[0009] The utility model is further provided as follows: the thickness of the guard plate is greater than the thickness of the shell.

[0010] In summary, this utility model has the following beneficial effects: there is a gap between the support frame and the shell, which separates the anti-collision frame from the shell, ensuring the heat dissipation area of ​​the shell surface. The support frame and the anti-collision frame further increase the heat dissipation area of ​​the fan surface. The interlocking anti-collision frame and support frame form a mesh structure on the outside of the shell, which protects the shell, reduces the collision between the shell and the outside world, avoids shell deformation, and ensures the service life of the fan. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Shell; 2. Mounting plate; 3. Support frame; 4. Anti-collision frame; 5. Protective plate; 6. Mounting hole. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] Example: A fan, such as Figure 1 As shown, the device includes a housing 1, with mounting plates 2 fixedly connected to both ends of the housing 1. The outer diameter of the mounting plates 2 is larger than the outer diameter of the housing 1. Several support frames 3 are fixedly connected between the two mounting plates 2. The axes of the support frames 3 are parallel to the axis of the housing 1. The support frames 3 are arranged in a circular array around the housing 1. Several anti-collision frames 4 are fixedly connected to the side of the support frames 3 away from the housing 1. The anti-collision frames 4 are arranged in a linear array along the axis of the housing 1.

[0015] Specifically, the casing 1 is cylindrical, with five fan blades rotatably connected inside. The mounting plate 2 is integrally formed with the casing 1, the support frame 3 is welded to the mounting plate 2, and the anti-collision frame 4 is welded to the support frame 3. There is a gap between the support frame 3 and the casing 1, which separates the anti-collision frame 4 from the casing 1, ensuring the heat dissipation area of ​​the casing 1 surface. The support frame 3 and the anti-collision frame 4 further increase the heat dissipation area of ​​the fan surface. The interlaced anti-collision frame 4 and support frame 3 form a mesh structure on the outside of the casing 1, protecting the casing 1, reducing collisions between the casing 1 and the outside world, preventing deformation of the casing 1, and ensuring the service life of the fan.

[0016] like Figure 1 As shown, the anti-collision frame 4 is in the shape of a minor arc. Along the cylindrical direction of the shell 1, the anti-collision frame 4 is arranged in groups of several. Several mounting holes 6 are provided through the mounting plate 2. The mounting holes 6 are located between two adjacent groups of anti-collision frames 4. Specifically, the anti-collision frame 4 is divided into six groups, so that the arc of the anti-collision frame 4 is a minor arc, which facilitates the installation and fixing of the anti-collision frame 4. Each group has a total of seven anti-collision frames 4. Each group of anti-collision frames 4 is connected to five support frames 3, so that the anti-collision frame 4 and the mounting holes 6 are staggered to avoid the anti-collision frame 4 interfering with the installation of the fan.

[0017] like Figure 1As shown, the anti-collision frame 4 is fixedly connected with the guard plate 5 away from the side of the shell 1, the guard plate 5 is connected with the adjacent two groups of anti-collision frames 4, the inner diameter of the guard plate 5 is greater than the outer diameter of the mounting plate 2, the length of the guard plate 5 is less than the distance between the two mounting plates 2, the thickness of the guard plate 5 is greater than the thickness of the shell 1, specifically, the guard plate 5 is welded with the anti-collision frame 4, the cross section of the guard plate 5 is arc-shaped, the two sides of the guard plate 5 are connected with the two groups of anti-collision frames 4 respectively, the connecting strength of the adjacent two groups of anti-collision frame 4 assemblies is strengthened, the stability of the anti-collision frame 4 is ensured, the length of the guard plate 5 is small, the position of the mounting hole 6 is convenient to observe from the two ends of the guard plate 5, the bolt and the rod are convenient to pass through the mounting hole 6 during installation, by increasing the thickness of the guard plate 5, the anti-deformation ability of the guard plate 5 is improved, and the strength of the outer side of the fan is improved.

[0018] The preferred embodiments of the utility model are described above, the protection scope of the utility model is not only limited to the above-mentioned embodiments, and all technical schemes under the idea of the utility model belong to the protection scope of the utility model. It should be noted that for ordinary skilled in the art, some improvements and decorations without departing from the principle of the utility model, these improvements and decorations should also be considered as the protection scope of the utility model.

Claims

1. A fan comprising a housing (1), characterised in that: Both ends of the shell (1) are fixedly connected with mounting plates (2), the outer diameter of the mounting plate (2) is greater than the outer diameter of the shell (1), a plurality of support frames (3) are fixedly connected between the two mounting plates (2), the axis of the support frame (3) is parallel to the axis of the shell (1), the support frame (3) is arranged in a circular array around the shell (1), a plurality of anti-collision frames (4) are fixedly connected to the side of the support frame (3) away from the shell (1), the anti-collision frame (4) is arranged in a linear array along the axis direction of the shell (1).

2. The fan of claim 1, wherein: The anti-collision frame (4) is arc-shaped.

3. The fan of claim 2, wherein: Along the cylindrical direction of the shell (1), the anti-collision frame (4) is grouped into several groups, a plurality of mounting holes (6) are provided through the mounting plate (2), and the mounting hole (6) is located between the adjacent two groups of anti-collision frames (4).

4. The fan of claim 3, wherein: The side of the anti-collision frame (4) away from the shell (1) is fixedly connected with a guard plate (5), the guard plate (5) is connected with the adjacent two groups of anti-collision frames (4), and the inner diameter of the guard plate (5) is greater than the outer diameter of the mounting plate (2).

5. The fan of claim 4, wherein: The length of the guard plate (5) is less than the distance between the two mounting plates (2).

6. The fan of claim 4, wherein: The thickness of the guard plate (5) is greater than the thickness of the shell (1).

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