CN222262357U

CN222262357U - Motor noise reduction housing with low noise

Info

Publication number: CN222262357U
Application number: CN202420953431.9U
Authority: CN
Inventors: 孟永庆; 孟永才
Original assignee: Gexin Electromechanical Co ltd
Current assignee: Gexin Electromechanical Co ltd
Priority date: 2024-05-06
Filing date: 2024-05-06
Publication date: 2024-12-27
Anticipated expiration: 2034-05-06

Abstract

The utility model provides a motor noise reduction shell with low noise, and relates to the technical field of motor shells. The motor comprises a motor shell, wherein an output rotating shaft is rotatably connected inside the motor shell, a heat dissipation mechanism is arranged outside the output rotating shaft and comprises a rubber gasket fixedly connected with the output rotating shaft, and a heat dissipation sleeve ring is fixedly connected with the outer surface of the rubber gasket. According to the motor, through the arrangement of the output rotating shaft, the rubber gasket, the heat dissipation lantern ring, the heat dissipation fan blades and the reinforcing rods, the output rotating shaft rotates to drive the heat dissipation lantern ring to rotate, and the heat dissipation lantern ring drives the heat dissipation fan blades to rotate, so that heat in the motor shell is discharged to the outside of the motor, the phenomenon that the normal operation of the motor is influenced due to overhigh temperature in the motor shell is avoided, the rubber gasket and the reinforcing rods can enable the heat dissipation lantern ring to keep stable in the rotating process, the heat dissipation lantern ring is prevented from shaking to rub the output rotating shaft, and noise generated by the heat dissipation lantern ring rubbing the output rotating shaft in the heat dissipation process is reduced.

Description

Motor noise reduction shell with low noise

Technical Field

The utility model relates to a motor noise reduction shell, in particular to a motor noise reduction shell with low noise, and belongs to the technical field of motor shells.

Background

The motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, or converting one form of electric energy into another form of electric energy, and three main noise sources of the motor are electromagnetic noise caused by an air gap harmonic magnetic field, mechanical noise caused by bearing noise and structural member resonance noise or rotational vibration noise, and ventilation noise generated by friction between vibration of a cooling fan blade and a rotating shaft in the rotating process.

According to the patent number CN218472924U, a protection noise reduction motor shell is disclosed, and the motor shell comprises a shell body, wherein one side of the shell body is provided with a cover body, a mounting plate is fixedly connected with one side of the shell body and one side of the cover body, a mounting seat is fixedly connected with the bottom of the shell body, an exhaust mechanism is arranged at the top of the cover body, a placing groove is formed in the shell body, and a magnetic ring is fixedly connected to the inside of the placing groove.

According to the scheme, automatic exhaust can be realized when the air pressure inside the shell is large in the implementation process, and the outside humid air is prevented from entering the shell to damage elements, but in the implementation process, the noise generated in the rotation process of the heat dissipation fan is difficult to eliminate, and in the heat dissipation process of the motor, the heat dissipation fan rubs with the rotating shaft to generate noise due to small-amplitude shaking easily caused by the rapid rotating speed, so that the two are damaged easily, the working environment is influenced, and therefore, the motor noise reduction shell with low noise is provided to solve the problems.

Disclosure of utility model

The utility model aims to solve the problems and provide a motor noise reduction shell with low noise so as to solve the problems that motor radiating fan blades are easy to rub with an output rotating shaft to generate noise in the prior art.

The motor noise reduction shell with low noise comprises a motor shell, an output rotating shaft is rotatably connected inside the motor shell, a heat dissipation mechanism is arranged outside the output rotating shaft and comprises a rubber gasket fixedly connected with the output rotating shaft, a heat dissipation sleeve ring is fixedly connected to the outer surface of the rubber gasket, a group of heat dissipation fan blades in a circumferential array are fixedly connected to the outer surface of the heat dissipation sleeve ring, a group of reinforcing rods in a circumferential array are fixedly connected to the outer surface of the output rotating shaft, and each reinforcing rod penetrates through the heat dissipation sleeve ring and is fixedly connected with the heat dissipation sleeve ring.

Preferably, the both ends of motor housing are fixedly connected with rear end cover and front end housing respectively, the equal fixed mounting of inner wall of motor housing, rear end cover and front end housing falls the pad of making an uproar, falls the pad of making an uproar and can absorb the noise that the motor operation in-process produced.

Preferably, a stator core is fixedly installed in the motor shell, a rotor core is installed in the stator core, the rotor core is rotationally connected with the output rotating shaft, and the rotor core can realize conversion between electric energy and kinetic energy.

Preferably, the inner wall fixedly connected with heating panel of motor housing, the surface rotation of output pivot is connected with first bearing, first bearing rotates with the heating panel to be connected, and the inside thermal circulation of motor housing is convenient for to the heating panel.

Preferably, the surface fixedly connected with ventilation filter of rear end cap, the inner wall fixedly connected with connecting plate of front end housing, ventilation filter can separate and filter the dust.

Preferably, the outer surface of the output rotating shaft is rotatably connected with a second bearing, the second bearing is rotatably connected with the connecting plate, and the second bearing can support the rotation of the output rotating shaft.

Preferably, the surface fixedly connected with two fixed plates of motor housing, the surface fixed mounting of motor housing has three-phase power junction box, and the fixed plate is convenient to install fixedly to the device.

The utility model provides a motor noise reduction shell with low noise, which has the following beneficial effects:

According to the motor, through the arrangement of the output rotating shaft, the rubber gasket, the heat dissipation lantern ring, the heat dissipation fan blades and the reinforcing rods, the output rotating shaft rotates to drive the heat dissipation lantern ring to rotate, the heat dissipation lantern ring drives the heat dissipation fan blades to rotate, so that a wind flow is generated in the rear end cover, heat in the motor shell is discharged to the outside of the motor through the heat dissipation holes in the heat dissipation plate, the phenomenon that the normal operation of the motor is influenced by the overhigh temperature in the motor shell is avoided, the rubber gasket and the reinforcing rods can enable the heat dissipation lantern ring to keep stable in the rotating process, the heat dissipation lantern ring is prevented from shaking to rub the output rotating shaft, noise generated by the friction of the heat dissipation lantern ring and the output rotating shaft in the heat dissipation process is reduced, the service life of the motor is prolonged, and the influence of the noise on workers or other working equipment is avoided.

According to the utility model, through the arrangement of the ventilation filter plate, a ventilation effect can be provided for heat dissipation of the device, fine particulate matters such as dust carried in air can be blocked, the matters such as dust are prevented from entering the device, normal operation of other components in the device is influenced, and through the arrangement of the noise reduction pad, noise generated in the motor can be blocked and absorbed, and noise generated in the operation process of the motor is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the internal structure of the motor housing of the present utility model;

FIG. 3 is an expanded view of the overall structure of the present utility model;

fig. 4 is an enlarged view of the structure of the portion a of fig. 3 according to the present utility model.

[ Main reference numerals Specification ]

1. A motor housing; 2, a rear end cover, 3, a front end cover, 4, a stator core, 5, a rotor core, 6, an output rotating shaft, 7, a heat dissipation plate, 8 and a first bearing;

9. a heat dissipation mechanism; 901, rubber washers, 902, heat dissipation collars, 903, heat dissipation fan blades, 904, reinforcing rods;

10. The device comprises a ventilation filter plate, 11, a connecting plate, 12, a second bearing, 13, a noise reduction pad, 14, a fixing plate and 15, and a three-phase power connection box.

Detailed Description

The embodiment of the utility model provides a motor noise reduction shell with low noise.

Referring to fig. 1, 2 and 3, the motor comprises a motor housing 1, two ends of the motor housing 1 are fixedly connected with a rear end cover 2 and a front end cover 3 respectively, and parts of components in the motor are not related to the scope of the application, so the components are not shown in detail in the drawings and are not repeated in the application, and the patterns of the components in the drawings are only referred to, and the actual production is mainly.

Referring to fig. 2 and 3, a stator core 4 is fixedly installed inside a motor housing 1, the stator core 4 is an important component for forming a motor magnetic flux loop and fixing a stator coil, and is formed into a whole by pressing a punching sheet and various fasteners, so that the motor housing has the advantages of good magnetic conductivity, low loss, good rigidity and good vibration, and can perform good ventilation in structural arrangement.

A rotor core 5 is installed inside the stator core 4, and the rotor core 5 includes two parts of a core and a winding, on which an armature winding is installed, generates induced electromotive force after being energized, serves as a rotating magnetic field, and then generates electromagnetic torque for energy conversion between electric energy and mechanical energy.

The inside rotation of motor housing 1 is connected with output pivot 6, and rotor core 5 and output pivot 6 rotate to be connected, and output pivot 6 is the output of the mechanical energy that the motor converted, thereby rotor core 5 can be with the electric energy conversion drive output pivot 6 rotation, and specific conversion mode is prior art, and it is not repeated to carry out in the application.

The inner wall fixedly connected with heating panel 7 of motor housing 1, the surface rotation of output pivot 6 is connected with first bearing 8, and first bearing 8 and heating panel 7 rotate to be connected, and first bearing 8 and second bearing 12 are prior art, and it is unnecessary to carry out too much description to it in the application, and first bearing 8 can support the rotation of output pivot 6, has characteristics such as sliding resistance is little, and power consumption is few, starts easily, has seted up the louvre on the heating panel 7.

The inner wall fixedly connected with connecting plate 11 of front end housing 3, the surface rotation of output pivot 6 is connected with second bearing 12, and second bearing 12 rotates with connecting plate 11 to be connected, and second bearing 12 also can provide the support for the rotation of output pivot 6, makes output pivot 6 can keep stable when outputting the kinetic energy, avoids output pivot 6 to rock and influence external equipment's normal use in the rotation in-process.

The surface fixedly connected with ventilation filter 10 of rear end cap 2, ventilation filter 10 can provide ventilation effect for the heat dissipation of device, can also carry out the separation to fine particle matters such as dust that carry in the air simultaneously, avoids substances such as dust to enter into this device, influences the normal work of other components and parts inside the device.

Referring to fig. 3, noise reduction pads 13 are fixedly installed on inner walls of the motor housing 1, the rear end cover 2 and the front end cover 3, the noise reduction pads 13 are in the prior art, excessive description of the noise reduction pads 13 is omitted, the noise reduction pads 13 can block and absorb noise generated in the motor, noise generated in the operation process of the motor is reduced, and influence of the noise on workers or other working equipment is avoided.

Referring to fig. 1, two fixing plates 14 are fixedly connected to the outer surface of the motor housing 1, screw holes are formed in the two fixing plates 14, a worker can mount the motor to a proper position through the screw holes, and the fixing plates 14 can provide supporting and protecting effects for normal operation of the motor.

The three-phase power connection box 15 is fixedly arranged on the outer surface of the motor shell 1, the three-phase power connection box 15 is in the prior art, excessive description of the three-phase power connection box 15 is omitted, the motor is conveniently connected with an external power line through the arrangement of the three-phase power connection box 15, and meanwhile, the three-phase power connection box 15 also protects a power connector to avoid electric leakage threatening the safety of workers.

Referring to fig. 3 and 4, a heat dissipation mechanism 9 is disposed outside the output shaft 6, the heat dissipation mechanism 9 includes a rubber gasket 901 fixedly connected with the output shaft 6, the rubber gasket 901 can make the combination between the heat dissipation collar 902 and the output shaft 6 tighter, and the heat dissipation collar 902 and the output shaft 6 also have a buffering effect on vibration generated during operation of the heat dissipation fan blade 903, so that friction between the heat dissipation collar 902 and the output shaft 6 is avoided, and noise generated by vibration is reduced.

The outer surface fixedly connected with heat dissipation lantern ring 902 of rubber packing ring 901, the surface fixedly connected with of heat dissipation lantern ring 902 is a set of heat dissipation flabellum 903 that is the circumference array, and output pivot 6 rotates and drives heat dissipation lantern ring 902 and rotate, and heat dissipation lantern ring 902 rotates and drives heat dissipation flabellum 903 and rotate, and heat dissipation flabellum 903 rotates and can produce a blast in the inside of rear end cap 2 to discharge the heat of motor housing 1 inside outside the device through the louvre on the heating panel 7, avoid motor housing 1 inside high temperature to influence the normal operating of motor.

The outer surface fixedly connected with of output pivot 6 is a set of reinforcing rod 904 that is circumference array, every reinforcing rod 904 all runs through the heat dissipation lantern ring 902 and with heat dissipation lantern ring 902 fixed connection, through the setting of reinforcing rod 904, can make heat dissipation lantern ring 902 keep stable with output pivot 6 in the rotation process, avoid heat dissipation lantern ring 902 to appear rocking and take place the friction with output pivot 6 in the rotation process, reduce the produced noise of friction, prolonged the life of heat dissipation lantern ring 902 and output pivot 6.

When the motor is used, a worker firstly connects a power line with the three-phase power connection box 15 correctly, then starts a power supply, and enables the output rotary shaft 6 to start to rotate under the action of the stator iron core 4 and the rotor iron core 5, the output rotary shaft 6 rotates to drive the heat dissipation sleeve ring 902 to rotate, the heat dissipation sleeve ring 902 drives the heat dissipation fan blades 903 to rotate, so that a blast of air flow is generated in the rear end cover 2, heat in the motor shell 1 is discharged to the outside of the device through the heat dissipation holes on the heat dissipation plate 7, the influence of overhigh temperature in the motor shell 1 on the normal operation of the motor is avoided, the rubber gasket 901 and the reinforcing rod 904 can enable the heat dissipation sleeve ring 902 to keep stable in the rotation process, the shaking of the heat dissipation sleeve ring 902 is avoided, the friction between the heat dissipation sleeve ring 902 and the output rotary shaft 6 is reduced, and the influence of the noise on the worker or other working equipment is avoided.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The motor noise reduction shell with low noise comprises a motor shell (1) and is characterized in that an output rotating shaft (6) is rotatably connected to the inside of the motor shell (1), a heat dissipation mechanism (9) is arranged outside the output rotating shaft (6), the heat dissipation mechanism (9) comprises a rubber gasket (901) fixedly connected with the output rotating shaft (6), a heat dissipation sleeve ring (902) is fixedly connected to the outer surface of the rubber gasket (901), a group of heat dissipation fan blades (903) in a circumferential array are fixedly connected to the outer surface of the heat dissipation sleeve ring (902), a group of reinforcing rods (904) in a circumferential array are fixedly connected to the outer surface of the output rotating shaft (6), and each reinforcing rod (904) penetrates through the heat dissipation sleeve ring (902) and is fixedly connected with the heat dissipation sleeve ring (902).

2. The motor noise reduction shell with low noise according to claim 1, wherein a rear end cover (2) and a front end cover (3) are fixedly connected to two ends of the motor shell (1), and noise reduction pads (13) are fixedly arranged on inner walls of the motor shell (1), the rear end cover (2) and the front end cover (3).

3. The motor noise reduction housing with low noise according to claim 1, wherein a stator core (4) is fixedly installed inside the motor housing (1), a rotor core (5) is installed inside the stator core (4), and the rotor core (5) is rotatably connected with an output rotating shaft (6).

4. The motor noise reduction housing with low noise according to claim 1, wherein the inner wall of the motor housing (1) is fixedly connected with a heat dissipation plate (7), the outer surface of the output rotating shaft (6) is rotatably connected with a first bearing (8), and the first bearing (8) is rotatably connected with the heat dissipation plate (7).

5. The motor noise reduction housing with low noise according to claim 2, wherein the outer surface of the rear end cover (2) is fixedly connected with a ventilation filter plate (10), and the inner wall of the front end cover (3) is fixedly connected with a connecting plate (11).

6. A motor noise reduction housing with low noise according to claim 5, characterized in that the outer surface of the output shaft (6) is rotatably connected with a second bearing (12), the second bearing (12) being rotatably connected with a connecting plate (11).

7. The motor noise reduction housing with low noise according to claim 1, wherein two fixing plates (14) are fixedly connected to the outer surface of the motor housing (1), and a three-phase power connection box (15) is fixedly installed on the outer surface of the motor housing (1).