CN221961679U - Protection device for electric fan motor - Google Patents

Abstract

The utility model relates to the technical field of electric fan motors, and discloses a protection device of an electric fan motor, which comprises: a protective shell; the capacitor is arranged in the inner cavity of the protective shell, a thick steel sheet is arranged on the left side of the capacitor, a stator is arranged on the left side of the thick steel sheet, an end cover is arranged on the left side of the stator, and a rotating shaft is arranged on the left side of the end cover in a penetrating manner through the surface of the protective shell; the fan blades are arranged on the surface of the rotating shaft; the heat dissipation holes are formed in the surface of the protective shell and are uniformly distributed on the surface of the protective shell; can drive the flabellum and rotate when rotating through the pivot, and can be taken out the steam in the protecting crust through the louvre of protecting crust front side through electric fan's wind-force, in the louvre of rear portion is taken in the protecting crust with external gas to circulate the steam in the protecting crust, the steam in the protecting crust also can flow through ventilation pipe department simultaneously, has improved the radiating effect of protecting crust to the motor.

Description

A protective device for electric fan motor

Technical Field

The utility model relates to the technical field of electric fan motors, in particular to a protective device for electric fan motors.

Background Art

An electric fan is a household appliance that uses an electric motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used to cool down and circulate air. It is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. Common household electric fans are essentially axial flow fans, that is, the direction of the wind is parallel to the rotation axis of the fan blades.

Chinese patent announcement number CN207398972U (a protective device for a fan motor) discloses a protective device for a fan motor, including a fixing groove, a shock-absorbing groove and a lubricating groove, wherein one end of the fixing groove is engaged with a partition net, a fixing plate is welded below the fixing groove, an oil storage tank is engaged with the top of the lubricating groove, a piston is arranged inside the oil storage tank, a connecting rod is welded in the middle of the piston, a push handle is welded on the top of the connecting rod, an oil delivery pipe is arranged at the bottom of the oil storage tank, a round hoop is arranged below the oil delivery pipe, a sponge is arranged at the bottom of the round hoop, bolts are arranged through the side wall of the lubricating groove, a supporting foot is arranged inside the fixing groove, a supporting plate is welded on the top of the supporting foot, a fixing frame is welded on one side of the partition net, one end of the fixing frame is engaged with a transmission motor, a rotating shaft is engaged inside the transmission motor, a fan blade is arranged at one end of the rotating shaft, a wire is connected to the side wall of the transmission motor, a wire groove is arranged through the fixing plate, a plurality of screw holes are arranged on the side wall of the shock-absorbing groove, a plurality of springs are welded inside the fixing groove, a support plate is arranged at one end of the spring, and an oil nozzle is arranged inside the round hoop;

The above scheme arranges a transmission motor and fan blades inside the fixed groove, so that the transmission motor can be used to drive the fan blades to rotate, thereby accelerating the air flow inside the fixed groove and improving the heat dissipation effect of the protective device. The existing fan motor is generally installed in an external protective shell, and heat dissipation holes are provided on the surface of the protective shell to circulate the internal air with the outside, thereby dissipating the heat of the motor. However, due to the low air flowability inside the protective shell, the heat discharged through the heat dissipation holes is reduced, resulting in the temperature inside the protective shell increasing with the increase of the running time of the motor, which is easy to increase the load of the motor and affect the service life of the motor. At the same time, since it takes time to disassemble the motor when repairing the motor, it is inconvenient for the staff to use.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a protection device for an electric fan motor to solve the problems raised in the above background technology.

To achieve the above purpose, the utility model provides the following technical solution: a protection device for an electric fan motor, comprising:

Protective shell, used to protect the motor;

A capacitor is arranged in the inner cavity of the protective shell, a thick steel sheet is installed on the left side of the capacitor, a stator is installed on the left side of the thick steel sheet, an end cover is installed on the left side of the stator, and a rotating shaft is installed on the left side of the end cover through the surface of the protective shell;

The fan blade is arranged on the surface of the rotating shaft;

Heat dissipation holes are arranged on the surface of the protective shell, and the heat dissipation holes are evenly distributed on the surface of the protective shell;

The installation boxes are arranged on both sides of the protective shell, and ventilation pipes are installed on the surfaces of the installation boxes.

Preferably, mounting blocks are provided on both sides of the stator, mounting grooves are provided on the surfaces of the mounting blocks, mounting rods are installed in the inner cavity of the mounting box through bearings, and the mounting rods are embedded in the mounting grooves, so that the stator can be connected to the surface of the mounting box, and the mounting box is connected to the surface of the protective shell, thereby connecting the stator to the surface of the protective shell, and the stator is also connected to the surfaces of the capacitor, thick steel sheet, end cover and rotating shaft. The stator, capacitor, thick steel sheet, end cover and rotating shaft are combined into a motor, so that the protective shell can stably install the motor, and the motor can be taken out of the protective shell by removing the mounting rod from the mounting groove, so that the staff does not need to spend a long time disassembling the motor, which is convenient for the staff to use.

Preferably, a threaded rod is installed on the upper surface of the mounting rod, and a nut is screwed on the surface of the threaded rod, so that the mounting rod can be fixed to the surface of the mounting block through the nut.

Preferably, mounting plates are installed on the upper and lower surfaces of the mounting block, and fixing rods are screwed between the mounting plate and the stator shell, and the mounting plate can be connected to the surface of the stator through the fixing rods, so that the mounting block can be installed on the surface of the stator.

Preferably, a mounting bracket is installed on the right inner wall of the protective shell, the capacitor is inserted into the inner cavity of the mounting bracket, and an air hood is installed on the surface of the ventilation duct. The mounting bracket is used to install the capacitor, and the air hood can increase the air volume flowing into the ventilation duct.

Preferably, the upper surface of the installation box is provided with a first cover plate, the bottom of the first cover plate is installed with a clamping block, the surface of the clamping block is provided with a clamping groove, the clamping groove of the clamping block is clamped to the surface of the installation box, and the installation rod can be operated by opening the first cover plate.

Preferably, a second cover plate is provided on the upper surface of the protective shell, and a limit rod is screwed between the second cover plate and the protective shell, so that the motor can be disassembled by opening the second cover plate.

Compared with the prior art, the utility model provides a protective device for an electric fan motor, which has the following beneficial effects:

1. The protection device of the electric fan motor can drive the fan blades to rotate when the rotating shaft rotates. The rotation of the fan blades can discharge the hot air in the protective shell through the heat dissipation holes, and the wind force of the electric fan can draw the hot air in the protective shell through the heat dissipation holes on the front side of the protective shell, and draw the external gas into the protective shell through the heat dissipation holes at the rear, so as to circulate the hot air in the protective shell and reduce the temperature in the protective shell. At the same time, the hot air in the protective shell will also flow out through the ventilation pipe, so as to perform comprehensive heat dissipation treatment on the inside of the protective shell, thereby improving the heat dissipation effect of the protective shell on the motor;

2. The protective device of the electric fan motor is embedded in the mounting groove through the mounting rod, so that the stator can be connected to the surface of the mounting box, and the mounting box is connected to the surface of the protective shell, thereby connecting the stator to the surface of the protective shell, and the stator is also connected to the surface of the capacitor, the thick steel sheet, the end cover and the rotating shaft. The stator, the capacitor, the thick steel sheet, the end cover and the rotating shaft are combined into a motor, so that the protective shell can stably install the motor. By removing the mounting rod from the mounting groove, the motor can be removed from the protective shell, so that the staff does not need to spend a long time to disassemble the motor, which is convenient for the staff to use.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the internal structure of the utility model;

Figure 3 is a schematic cross-sectional view of the utility model;

FIG. 4 is a schematic structural diagram of a mounting rod according to the present invention.

In the figure: 1. protective shell; 2. capacitor; 3. thick steel sheet; 4. stator; 5. end cover; 6. rotating shaft; 7. fan blade; 8. heat dissipation hole; 9. installation box; 10. ventilation pipe; 11. installation block; 12. installation slot; 13. installation rod; 14. threaded rod; 15. nut; 16. installation plate; 17. fixing rod; 18. installation frame; 19. air collecting hood; 20. first cover plate; 21. clamping block; 22. second cover plate; 23. limit rod.

DETAILED DESCRIPTION

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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

The utility model provides a technical solution, a protective device for an electric fan motor, please refer to FIG1 , comprising a protective shell 1 for protecting the motor;

Please refer to FIG2 , the capacitor 2 is arranged in the inner cavity of the protective shell 1, a thick steel sheet 3 is installed on the left side of the capacitor 2, a stator 4 is installed on the left side of the thick steel sheet 3, an end cover 5 is installed on the left side of the stator 4, and a rotating shaft 6 is installed on the left side of the end cover 5 through the surface of the protective shell 1;

The fan blade 7 is arranged on the surface of the rotating shaft 6;

The heat dissipation holes 8 are arranged on the surface of the protective shell 1, and the heat dissipation holes 8 are evenly distributed on the surface of the protective shell 1;

The mounting box 9 is arranged on both sides of the protective shell 1. The surfaces of the mounting boxes 9 are all installed with ventilation pipes 10. The right inner wall of the protective shell 1 is installed with a mounting frame 18. The capacitor 2 is inserted into the inner cavity of the mounting frame 18. The surface of the ventilation pipe 10 is all installed with a wind hood 19. The mounting frame 18 is used to install the capacitor 2. The wind hood 19 can increase the air volume flowing into the ventilation pipe 10. The rotating shaft 6 can drive the fan blades 7 to rotate when rotating. The rotation of the fan blades 7 can discharge the hot air in the protective shell 1 through the heat dissipation holes 8. The wind force of the electric fan can extract the hot air in the protective shell 1 through the heat dissipation holes 8 on the front side of the protective shell 1, and the external gas is drawn into the protective shell 1 through the heat dissipation holes 8 at the rear, so that the hot air in the protective shell 1 is circulated, and the temperature in the protective shell 1 is reduced. At the same time, the hot air in the protective shell 1 will also flow out through the ventilation pipe 10, so that the interior of the protective shell 1 is fully heat-dissipated, thereby improving the heat dissipation effect of the protective shell 1 on the motor;

The upper surface of the installation box 9 is provided with a first cover plate 20, and the bottom of the first cover plate 20 is provided with a clamping block 21, and the surface of the clamping block 21 is provided with a clamping groove, and the clamping groove of the clamping block 21 is clamped to the surface of the installation box 9. By opening the first cover plate 20, the installation rod 13 can be operated;

The upper surface of the protective shell 1 is provided with a second cover plate 22, and a limit rod 23 is screwed between the second cover plate 22 and the protective shell 1, and the motor can be disassembled by opening the second cover plate 22;

Please refer to Figure 3. Both sides of the stator 4 are provided with mounting blocks 11. Please refer to Figure 4. The surfaces of the mounting blocks 11 are provided with mounting grooves 12. The inner cavity of the mounting box 9 is provided with mounting rods 13 through bearings. The mounting rods 13 are embedded in the mounting grooves 12, so that the stator 4 can be connected to the surface of the mounting box 9, and the mounting box 9 is connected to the surface of the protective shell 1, so that the stator 4 is connected to the surface of the protective shell 1, and the stator 4 is also connected to the surfaces of the capacitor 2, the thick steel sheet 3, the end cover 5 and the rotating shaft 6. The stator 4, the capacitor 2, the thick steel sheet 3, the end cover 5 and the rotating shaft 6 are combined into a motor, so that the protective shell 1 can stably install the motor. By removing the mounting rod 13 from the mounting groove 12, the motor can be removed from the protective shell 1, so that the staff does not need to spend a long time to disassemble the motor, which is convenient for the staff to use;

The upper surface of the mounting rod 13 is installed with a threaded rod 14, and the surface of the threaded rod 14 is screwed with a nut 15, and the mounting rod 13 can be fixed to the surface of the mounting block 11 through the nut 15;

The upper and lower surfaces of the mounting block 11 are both installed with mounting plates 16, and fixing rods 17 are screwed between the mounting plate 16 and the outer shell of the stator 4. The mounting plate 16 can be connected to the surface of the stator 4 through the fixing rods 17, so that the mounting block 11 can be installed on the surface of the stator 4.

The working principle of the device is as follows: first, the rotating shaft 6 can drive the fan blades 7 to rotate when rotating, and the rotation of the fan blades 7 can discharge the hot air in the protective shell 1 through the heat dissipation holes 8, and the wind force of the electric fan can draw the hot air in the protective shell 1 through the heat dissipation holes 8 on the front side of the protective shell 1, and then the external gas is drawn into the protective shell 1 through the heat dissipation holes 8 at the rear, so that the hot air in the protective shell 1 is circulated and the temperature in the protective shell 1 is reduced. At the same time, the hot air in the protective shell 1 will also flow out through the ventilation pipe 10, so as to perform comprehensive heat dissipation treatment on the inside of the protective shell 1, thereby improving the heat dissipation effect of the protective shell 1 on the motor. After that, the mounting rod 13 is embedded in the mounting groove 12, so that the stator 4 can be connected to the surface of the mounting box 9, and the mounting box 9 is connected to the surface of the protective shell 1, so that the stator 4 is connected to the surface of the protective shell 1, and the stator 4 is also connected to the surfaces of the capacitor 2, the thick steel sheet 3, the end cover 5 and the rotating shaft 6. The stator 4, the capacitor 2, the thick steel sheet 3, the end cover 5 and the rotating shaft 6 are combined into a motor, so that the protective shell 1 can stably install the motor. By removing the mounting rod 13 from the mounting groove 12, the motor can be taken out of the protective shell 1, so that the staff does not need to spend a long time to disassemble the motor, which is convenient for the staff to use.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A protection device for an electric fan motor, comprising: A protective shell (1) is used to protect the motor; A capacitor (2) is arranged in the inner cavity of the protective shell (1); a thick steel sheet (3) is installed on the left side of the capacitor (2); a stator (4) is installed on the left side of the thick steel sheet (3); an end cover (5) is installed on the left side of the stator (4); and a rotating shaft (6) is installed on the left side of the end cover (5) and penetrates the surface of the protective shell (1); The fan blade (7) is arranged on the surface of the rotating shaft (6); Heat dissipation holes (8) are arranged on the surface of the protective shell (1), and the heat dissipation holes (8) are evenly distributed on the surface of the protective shell (1); The installation boxes (9) are arranged on both sides of the protective shell (1), and ventilation pipes (10) are installed on the surfaces of the installation boxes (9). 2. A protection device for an electric fan motor according to claim 1, characterized in that: mounting blocks (11) are provided on both sides of the stator (4), mounting grooves (12) are provided on the surfaces of the mounting blocks (11), and mounting rods (13) are installed in the inner cavity of the mounting box (9) through bearings. 3. A protection device for an electric fan motor according to claim 2, characterized in that: a threaded rod (14) is installed on the upper surface of the mounting rod (13), and a nut (15) is screwed on the surface of the threaded rod (14). 4. A protection device for an electric fan motor according to claim 2, characterized in that: a mounting plate (16) is mounted on the upper surface and the lower surface of the mounting block (11), and a fixing rod (17) is screwed between the mounting plate (16) and the outer shell of the stator (4). 5. A protection device for an electric fan motor according to claim 1, characterized in that: a mounting frame (18) is installed on the right inner wall of the protective shell (1), the capacitor (2) is inserted into the inner cavity of the mounting frame (18), and a wind collecting cover (19) is installed on the surface of the ventilation pipe (10). 6. A protection device for an electric fan motor according to claim 1, characterized in that: a first cover plate (20) is provided on the upper surface of the installation box (9), a clamping block (21) is installed on the bottom of the first cover plate (20), a clamping groove is opened on the surface of the clamping block (21), and the clamping groove of the clamping block (21) is clamped to the surface of the installation box (9). 7. A protection device for an electric fan motor according to claim 1, characterized in that a second cover plate (22) is provided on the upper surface of the protection shell (1), and a limit rod (23) is screwed between the second cover plate (22) and the protection shell (1).