Novel flat black net outer rotor fan

Abstract

The utility model discloses a novel flat black net outer rotor fan which comprises a fan base, a piece placing base is arranged at the bottom end in the fan base, positioning rods are arranged on the outer wall of the piece placing base at equal intervals, the ends, away from the piece placing base, of the positioning rods are fixedly connected with the inner wall of the fan base, and the included angle between every two adjacent positioning rods is 120 degrees. A part placing frame is arranged at the edge position of the top end of the part placing seat, a fan mesh enclosure is installed at the top end of the fan base, positioning feet are arranged on the outer wall of the lower end of the fan mesh enclosure at equal intervals, and the included angle between every two adjacent positioning feet is 90 degrees. According to the fan, the overall size of the fan is effectively reduced, the occupied space is saved, the fan mesh enclosure is easily installed and connected to the top end of the fan base so that the fan can be conveniently assembled and manufactured, the structural strength of the fan mesh enclosure is improved, the phenomenon that the fan mesh enclosure is deformed and damaged due to external force factors is reduced, and the service life of the fan is prolonged. And the service life of the fan is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a novel flat black mesh outer rotor fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. There are many types of fans, and external rotor fans are one of them. Because they can perform ventilation and air induction better, fans are widely used in various industries.

[0003] Reference publication number CN209370116U is an external rotor fan, which includes a rotor placed outside a motor, a plurality of fan blades connected to the rotor, and an air guide tube arranged at an air outlet, and also includes a connecting shaft for connecting the rotor and the fan blades, the axis center line of the connecting shaft coincides with the axis center line of the rotor, and the connecting shaft includes a fan blade connecting portion radially extended along the shaft, and the rotor is fixedly connected to the fan blade connecting portion; the air guide tube includes at least one primary threaded portion and at least one primary diffuser portion alternately connected, and the diffuser portion is a trumpet-shaped cylindrical structure. The fan blades of the fan can be dynamically balanced before assembly, the installation requirements are low, and rapid assembly can be achieved, and the specifications of the air guide tube are adjustable to match diverse air supply requirements. According to the above, although the fan can be well applied, it is usually not convenient to shield and protect the fan blades, and it is difficult to assemble and connect the fan as a whole, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of flat black mesh outer rotor fan to solve the problem that although the fan can be well applied in the above background technology, it is usually inconvenient to shield and protect the fan blades and it is difficult to assemble and connect the fan as a whole.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of flat black mesh outer rotor fan, including a fan base, a mounting seat is provided at the bottom end inside the fan base, and positioning rods with equal spacing are provided on the outer wall of the mounting seat, and the positioning rods are fixedly connected to the inner wall of the fan base at one end away from the mounting seat, and the angle between adjacent positioning rods is one hundred and twenty degrees. A mounting frame is provided at the edge position of the top of the mounting seat, and a fan mesh cover is installed at the top of the fan base, and positioning feet with equal spacing are provided on the outer wall of the lower end of the fan mesh cover, and the angle between adjacent positioning feet is ninety degrees.

[0006] Preferably, strip reinforcement ribs are provided at the corner positions of the outer wall of the fan base, a positioning seat is provided at the top of the fan base on one side of the strip reinforcement ribs, and a first threaded hole is provided on one side inside the positioning seat. Through the setting of the first threaded hole, the fan mesh cover can be installed on the top of the fan base with the help of bolts.

[0007] Preferably, a second threaded hole is provided at the bottom of the fan base below the first threaded hole, and the bottom end of the second threaded hole extends to the outside of the fan base. Through the setting of the second threaded hole, the fan grille can be installed on the top of the fan base with the help of bolts.

[0008] Preferably, a fan cover is arranged at the center of the top of the fan grille, and an outer rotor is rotatably mounted on the bottom end of the fan cover, so that the fan blades can be placed and processed through the arrangement of the outer rotor.

[0009] Preferably, the outer wall of the outer rotor is provided with equally spaced fan blades, and the number of the fan blades is seven. A locking cavity is provided at the center position inside the outer rotor, and the bottom end of the locking cavity extends to the outside of the outer rotor. By providing seven fan blades, the ventilation and air induction effects of the fan are guaranteed.

[0010] Preferably, a rotary drive member is provided at the bottom of the mounting seat, a rotating shaft is provided at the top of the rotary drive member, and the top of the rotating shaft extends to the inside of the locking cavity. The rotary drive member is provided so as to drive the fan blade to rotate via the rotating shaft and other related components.

[0011] Preferably, first reinforcing ribs with equal spacing are provided on the outer wall of the fan cover, the inner wall of the first reinforcing ribs away from one end of the fan cover is fixedly connected to the outer wall of the fan mesh cover, and second reinforcing ribs are provided on the outer surface of the fan mesh cover between adjacent first reinforcing ribs, and the structural strength of the fan mesh cover is improved by arranging the second reinforcing ribs and the first reinforcing ribs.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the novel flat black mesh outer rotor fan is provided with a fan mesh cover to shield and protect the fan blades, and the fan mesh cover is designed as a flat mesh structure. Compared with the fan with a traditional arc-shaped convex design, the overall volume of the fan is effectively reduced, and the occupied space is saved. In addition, through the provision of the first threaded hole, the second threaded hole and the positioning foot, the fan mesh cover can be installed and connected to the top of the fan base by simply using a bolt member to penetrate the positioning foot and screw it into the first threaded hole and the second threaded hole. Through the provision of the first reinforcement rib and the second reinforcement rib, the structural strength of the fan mesh cover is improved, and the phenomenon of deformation and damage of the fan mesh cover due to external force factors is reduced, so as to ensure the service life of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the explosion structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the fan base viewed from above in the utility model;

[0016] Figure 4 This is a schematic diagram of the fan blade structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the fan cover of the utility model.

[0018] In the figure: 1. fan base; 2. positioning rod; 3. mounting seat; 4. strip reinforcement rib; 5. first threaded hole; 6. second threaded hole; 7. outer rotor; 8. fan blade; 9. fan mesh cover; 10. positioning foot; 11. locking cavity; 12. mounting frame; 13. rotating drive member; 14. rotating shaft; 15. positioning seat; 16. first reinforcement rib; 17. second reinforcement rib; 18. fan cover. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides an embodiment: a novel flat black net outer rotor fan, including a fan base 1, a strip reinforcement rib 4 is arranged at the corner position of the outer wall of the fan base 1, a positioning seat 15 is arranged at the top of the fan base 1 on one side of the strip reinforcement rib 4, and a first threaded hole 5 is arranged on one side of the positioning seat 15;

[0021] When in use, the fan screen 9 is mounted on the top of the fan base 1 by means of the first threaded hole 5;

[0022] A second threaded hole 6 is provided at the bottom of the fan base 1 below the first threaded hole 5, and the bottom end of the second threaded hole 6 extends to the outside of the fan base 1;

[0023] When in use, the fan screen 9 is mounted on the top of the fan base 1 by means of the second threaded hole 6;

[0024] A mounting seat 3 is provided at the bottom end of the fan base 1, and positioning rods 2 are provided at equal intervals on the outer wall of the mounting seat 3. One end of the positioning rod 2 away from the mounting seat 3 is fixedly connected to the inner wall of the fan base 1, and the angle between adjacent positioning rods 2 is 120 degrees.

[0025] A mounting frame 12 is provided at the edge of the top of the mounting seat 3, a fan screen 9 is installed at the top of the fan base 1, a fan cover 18 is provided at the center of the top of the fan screen 9, and an outer rotor 7 is rotatably installed at the bottom of the fan cover 18;

[0026] When in use, the outer rotor 7 is arranged so as to place the fan blades 8;

[0027] The outer wall of the outer rotor 7 is provided with fan blades 8 at equal intervals, and the number of the fan blades 8 is seven. A locking cavity 11 is provided at the center of the outer rotor 7, and the bottom end of the locking cavity 11 extends to the outside of the outer rotor 7.

[0028] When in use, the number of the fan blades 8 is set to seven to ensure the ventilation and air induction effects of the fan;

[0029] A rotary drive member 13 is disposed at the bottom of the mounting seat 3, a rotating shaft 14 is disposed at the top of the rotary drive member 13, and the top of the rotating shaft 14 extends to the interior of the locking cavity 11;

[0030] When in use, the rotating driving member 13 is arranged so as to drive the fan blade 8 to rotate via the rotating shaft 14 and other related components;

[0031] The outer wall of the fan cover 18 is provided with first reinforcing ribs 16 at equal intervals, the inner wall of the first reinforcing rib 16 away from the end of the fan cover 18 is fixedly connected to the outer wall of the fan mesh 9, and the outer surface of the fan mesh 9 between adjacent first reinforcing ribs 16 is provided with second reinforcing ribs 17;

[0032] When in use, the second reinforcing rib 17 and the first reinforcing rib 16 are arranged to improve the structural strength of the fan screen 9;

[0033] The outer wall of the lower end of the fan mesh cover 9 is provided with positioning feet 10 at equal intervals, and the angle between adjacent positioning feet 10 is ninety degrees.

[0034] When the embodiment of the present application is in use, the fan grille 9 is first placed on the top of the fan base 1 through the arrangement of the first threaded hole 5, the second threaded hole 6 and the positioning foot 10, and the plurality of positioning feet 10 are calibrated at the position of the first threaded hole 5. The fan grille 9 can be installed and connected to the top of the fan base 1 by means of bolts that penetrate the positioning feet 10 and screw into the first threaded hole 5 and the second threaded hole 6, so as to facilitate the assembly and connection of the fan and improve the assembly production efficiency of the fan. Afterwards, the fan grille 9 is arranged to shield and protect the fan blades 8 to reduce The fan blades 8 can be protected from damage due to external forces, and the potential safety hazard caused by foreign objects contacting the high-speed rotating fan blades 8 can be reduced. Seven fan blades 8 are provided to ensure the ventilation and air-inducing effects of the fan, and the fan mesh cover 9 is designed to be a flat mesh structure, which not only effectively reduces the overall volume of the fan, but also saves the space occupied by the fan. Finally, the first reinforcing ribs 16 and the second reinforcing ribs 17 are provided to improve the structural strength of the fan mesh cover 9, reduce the deformation and damage of the fan mesh cover 9 due to external forces, and ensure the service life of the fan, thereby completing the use of the fan.

Claims

1. A new type of flat black mesh outer rotor fan, characterized by: The invention comprises a fan base (1), wherein a mounting seat (3) is arranged at the bottom end of the fan base (1), and positioning rods (2) with equal spacing are arranged on the outer wall of the mounting seat (3), and one end of the positioning rod (2) away from the mounting seat (3) is fixedly connected to the inner wall of the fan base (1), and the angle between adjacent positioning rods (2) is 120 degrees. A mounting frame (12) is arranged at the edge position of the top end of the mounting seat (3), and a fan grille (9) is installed at the top end of the fan base (1), and positioning feet (10) with equal spacing are arranged on the outer wall of the lower end of the fan grille (9), and the angle between adjacent positioning feet (10) is 90 degrees.

2. A novel flat black mesh outer rotor fan according to claim 1, characterized in that: Strip reinforcement ribs (4) are provided at the corner positions of the outer wall of the fan base (1), a positioning seat (15) is provided at the top of the fan base (1) on one side of the strip reinforcement rib (4), and a first threaded hole (5) is provided on one side inside the positioning seat (15).

3. A novel flat black mesh outer rotor fan according to claim 2, characterized in that: A second threaded hole (6) is provided at the bottom of the fan base (1) below the first threaded hole (5), and the bottom end of the second threaded hole (6) extends to the outside of the fan base (1).

4. A novel flat black mesh outer rotor fan according to claim 1, characterized in that: A fan cover (18) is arranged at the center position of the top of the fan mesh cover (9), and an outer rotor (7) is rotatably mounted on the bottom end of the fan cover (18).

5. A novel flat black mesh outer rotor fan according to claim 4, characterized in that: The outer wall of the outer rotor (7) is provided with fan blades (8) at equal intervals, and the number of the fan blades (8) is seven. A locking cavity (11) is provided at the center position inside the outer rotor (7), and the bottom end of the locking cavity (11) extends to the outside of the outer rotor (7).

6. A novel flat black mesh outer rotor fan according to claim 5, characterized in that: A rotating drive member (13) is disposed at the bottom of the mounting seat (3), a rotating shaft (14) is disposed at the top of the rotating drive member (13), and the top of the rotating shaft (14) extends to the interior of the locking cavity (11).

7. A novel flat black mesh outer rotor fan according to claim 4, characterized in that: The outer wall of the fan cover (18) is provided with first reinforcing ribs (16) at equal intervals, the inner wall of the first reinforcing rib (16) away from one end of the fan cover (18) is fixedly connected to the outer wall of the fan mesh cover (9), and the outer surface of the fan mesh cover (9) between adjacent first reinforcing ribs (16) is provided with second reinforcing ribs (17).

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