CN214945140U

CN214945140U - Energy-saving low-noise axial flow fan

Info

Publication number: CN214945140U
Application number: CN202120981594.4U
Authority: CN
Inventors: 黄文君
Original assignee: Yifeng Fujian Fan Manufacturing Co ltd
Current assignee: Yifeng Fujian Fan Manufacturing Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-11-30
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses an energy-conserving low noise axial fan, comprising a base plate, the top fixedly connected with brace table of bottom plate, brace table's lateral wall is provided with the converter, brace table's top fixedly connected with barrel, the inside of barrel is provided with the motor, the one end extension of motor is provided with the pivot, the one end fixedly connected with fixed block of pivot, the lateral wall fixedly connected with impeller of fixed block, the lateral wall of pivot is provided with the bearing, the lateral wall of motor is provided with fixed cover, the lateral wall of fixed cover runs through and is provided with the heat dissipation scale, the one end of barrel is provided with first protection network, the other end of barrel is provided with the second protection network, the inside wall fixedly connected with sound absorbing material of barrel. The utility model discloses in, the motor can the continuation operation, reaches the purpose of energy-conserving speed governing through change equipment input voltage frequency, and the noise is little.

Description

Energy-saving low-noise axial flow fan

Technical Field

The utility model relates to an axial fan technical field especially relates to an energy-conserving low noise axial fan.

Background

The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner external unit fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing, and is simple in structure but high in data requirement.

When the existing axial flow fan is used, the current of the motor can be higher than the rated current when the fan is started, so that the service life of the motor can be influenced, the power consumption is higher, the motor can be heated during operation, the motor can be damaged without heat dissipation, and the noise is larger during fan operation, so that the energy-saving low-noise axial flow fan is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an energy-saving low-noise axial flow fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an energy-saving low-noise axial flow fan comprises a bottom plate, wherein a supporting table is fixedly connected to the top end of the bottom plate, and a frequency converter is arranged on the side wall of the supporting table;

the top end of the supporting table is fixedly connected with a cylinder body, a motor is arranged in the cylinder body, a rotating shaft extends from one end of the motor, a fixed block is fixedly connected with one end of the rotating shaft, an impeller is fixedly connected with the side wall of the fixed block, a bearing is arranged on the side wall of the rotating shaft, a fixed sleeve is arranged on the side wall of the motor, a first fixed frame is fixedly connected with the bottom end of the fixed sleeve, and the bottom end of the first fixed frame is fixedly connected with the inner bottom wall of the cylinder body;

the lateral wall of fixed cover runs through and is provided with the heat dissipation scale, the one end of barrel is provided with first protection network, the other end of barrel is provided with the second protection network, the inside wall fixedly connected with sound absorbing material of barrel.

As a further description of the above technical solution:

the number of the supporting tables is two, and the supporting tables are vertically fixed at two ends of the side wall of the barrel body respectively.

As a further description of the above technical solution:

the cross section of the supporting platform is similar to a concave shape, and the concave opening of the supporting platform is attached to the outer side wall of the cylinder body.

As a further description of the above technical solution:

the heat dissipation scale passes the lateral wall of fixed cover and motor and laminates mutually, just the heat dissipation scale is located the both sides of motor.

As a further description of the above technical solution:

the bearing is located one side of fixed block, just the lateral wall fixedly connected with second mount of bearing, the lateral wall fixed connection of the lateral wall of second mount and fixed cover.

As a further description of the above technical solution:

the density of the first protective net is greater than that of the second protective net.

As a further description of the above technical solution:

the sound-absorbing material is located around the impeller, and the sound-absorbing material is located on the inner side of the first protective net.

As a further description of the above technical solution:

the lateral wall fixedly connected with buckle of barrel, just the second protection network passes through buckle and the lateral wall fixed connection of barrel.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the utility model discloses be provided with the converter, axial fan is when starting, and the current of motor can be than rated high, not only can influence the life of motor and consume more electric quantity, and the converter of setting can realize the purpose that the motor soft start, reach energy-conserving speed governing through change equipment input voltage frequency.

2. Compared with the prior art, the utility model discloses lateral wall at the motor is provided with the heat dissipation scale to dispel the heat in order to guarantee that the motor can continuation operation to the motor.

3. Compared with the prior art, the utility model discloses lateral wall at the pivot is provided with the bearing, and the pivot overlength can rock, and the bearing of setting can the vibration frequency of effectual reduction pivot, and the sound absorbing material who sets up at the inside wall of barrel simultaneously can noise reduction.

4. Compared with the prior art, the utility model discloses a buckle that sets up can carry out the dismouting, the washing of being convenient for to the protection network.

Drawings

Fig. 1 is an oblique view of an energy-saving low-noise axial flow fan provided by the present invention;

fig. 2 is a schematic view of the internal structure of an energy-saving low-noise axial flow fan provided by the present invention;

fig. 3 is a rear view of an energy-saving low-noise axial flow fan provided by the present invention;

fig. 4 is a front view of the energy-saving low-noise axial flow fan provided by the present invention.

Illustration of the drawings:

1. a base plate; 2. a support table; 3. a frequency converter; 4. a barrel; 5. a first fixing frame; 6. fixing a sleeve; 7. heat dissipation scales; 8. a motor; 9. a rotating shaft; 10. a fixed block; 11. an impeller; 12. a bearing; 13. a second fixing frame; 14. a sound absorbing material; 15. a first protection net; 16. a second protective net; 17. and (5) buckling.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: an energy-saving low-noise axial flow fan comprises a bottom plate 1, wherein the top end of the bottom plate 1 is fixedly connected with two supporting tables 2, the two supporting tables 2 are vertically fixed at two ends of the side wall of a cylinder 4 respectively, the cross section of each supporting table 2 is similar to a concave shape, the concave opening of each supporting table 2 is attached to the outer side wall of the cylinder 4, a frequency converter 3 is arranged on the side wall of each supporting table 2, the frequency converter 3 can realize the soft start of a motor 8, the purpose of saving energy and regulating speed can be achieved by changing the input voltage frequency of equipment, and the protection functions of overcurrent, overvoltage, overload and the like can be provided for the equipment;

the top end of the supporting table 2 is fixedly connected with a cylinder 4, a motor 8 is arranged inside the cylinder 4, one end of the motor 8 extends to form a rotating shaft 9, one end of the rotating shaft 9 is fixedly connected with a fixed block 10, the side wall of the fixed block 10 is fixedly connected with an impeller 11, the side wall of the rotating shaft 9 is provided with a bearing 12, the rotating shaft 9 can shake after being overlong, the arranged bearing 12 can effectively reduce the vibration frequency of the rotating shaft 9, the bearing 12 is positioned on one side of the fixed block 10, the side wall of the bearing 12 is fixedly connected with a second fixed frame 13, the side wall of the second fixed frame 13 is fixedly connected with the side wall of a fixed frame 6, the side wall of the motor 8 is provided with a fixed frame 6, the bottom end of the fixed frame 6 is fixedly connected with a first fixed frame 5, and the bottom end of the first fixed frame 5 is fixedly connected with the inner bottom wall of the cylinder 4;

the lateral wall of fixed cover 6 runs through and is provided with heat dissipation scale 7, heat dissipation scale 7 can be convenient for motor 8 dispels the heat, heat dissipation scale 7 passes fixed cover 6 and motor 8's lateral wall and laminates mutually, and heat dissipation scale 7 is located motor 8's both sides, the one end of barrel 4 is provided with first protection network 15, the other end of barrel 4 is provided with second protection network 16, the density of first protection network 16 is greater than the density of second protection network 15, the lateral wall fixedly connected with buckle 17 of barrel 4, and second protection network 16 passes through buckle 17 and barrel 4's lateral wall fixed connection, can be so that carry out the dismouting with second protection network 16 through buckle 17, the inside wall fixedly connected with acoustic material 14 of barrel 4, acoustic material 14 is located around impeller 11, and acoustic material 14 is located first protection network 15's inboard.

The working principle is as follows: when the axial flow fan is started, the current of the motor 8 is higher than the rated current, and the bearing 12 is additionally arranged on the side wall of the rotating shaft 9, so that the vibration frequency of the rotating shaft 9 is reduced, and meanwhile, the sound absorption material 14 is arranged on the inner side wall of the barrel 4, and the noise can be effectively reduced by improving the rotating stability of the rotating shaft 9 and the sound absorption material 14 arranged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an energy-conserving low noise axial fan, includes bottom plate (1), its characterized in that: the top end of the bottom plate (1) is fixedly connected with a supporting table (2), and a frequency converter (3) is arranged on the side wall of the supporting table (2);

the top end of the supporting table (2) is fixedly connected with a cylinder (4), a motor (8) is arranged inside the cylinder (4), one end of the motor (8) extends to form a rotating shaft (9), one end of the rotating shaft (9) is fixedly connected with a fixed block (10), the side wall of the fixed block (10) is fixedly connected with an impeller (11), the side wall of the rotating shaft (9) is provided with a bearing (12), the side wall of the motor (8) is provided with a fixed sleeve (6), the bottom end of the fixed sleeve (6) is fixedly connected with a first fixed frame (5), and the bottom end of the first fixed frame (5) is fixedly connected with the inner bottom wall of the cylinder (4);

the lateral wall of fixed cover (6) runs through and is provided with heat dissipation scale (7), the one end of barrel (4) is provided with first protection network (15), the other end of barrel (4) is provided with second protection network (16), the inside wall fixedly connected with sound absorbing material (14) of barrel (4).

2. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the number of the supporting tables (2) is two, and the supporting tables (2) are vertically fixed at two ends of the side wall of the barrel body (4) respectively.

3. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the cross section of the supporting platform (2) is similar to a concave shape, and the concave opening of the supporting platform (2) is attached to the outer side wall of the cylinder body (4).

4. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the heat dissipation scale (7) passes through the fixed sleeve (6) to be attached to the side wall of the motor (8), and the heat dissipation scale (7) is located on two sides of the motor (8).

5. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the bearing (12) is located one side of fixed block (10), just the lateral wall fixedly connected with second mount (13) of bearing (12), the lateral wall fixed connection of the lateral wall of second mount (13) and fixed cover (6).

6. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the density of the first protective net (15) is greater than the density of the second protective net (16).

7. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the sound-absorbing material (14) is located around the impeller (11), and the sound-absorbing material (14) is located on the inner side of the first protective net (15).

8. The energy-saving low-noise axial flow fan according to claim 1, characterized in that: the side wall of the barrel (4) is fixedly connected with a buckle (17), and the second protective net (16) is fixedly connected with the side wall of the barrel (4) through the buckle (17).