CN112260462B

CN112260462B - Motor silencing device

Info

Publication number: CN112260462B
Application number: CN202011002777.3A
Authority: CN
Inventors: 余永胜; 鲁汇; 杨浩
Original assignee: Anhui Zhengliang Environmental Protection And Energy Saving Technology Co ltd
Current assignee: Anhui Zhengliang Environmental Protection And Energy Saving Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-11-02
Anticipated expiration: 2040-09-22
Also published as: CN112260462A

Abstract

The invention discloses a motor silencing device which comprises a motor, wherein first soundproof cotton is arranged in the motor, a first air cover is arranged on the motor, a second air cover is arranged on the motor, a silencing box is arranged on the second air cover, second soundproof cotton is arranged in the silencing box, a centrifugal fan is arranged on the motor, and a radiating fan is arranged on the motor; the sound-muffling box comprises a box body, wherein first exhaust holes which are symmetrically distributed are formed in the box body, a first air channel is formed in the box body, second exhaust holes which are symmetrically distributed are formed in the first air channel, a second air channel is formed in the box body, a third exhaust hole is formed in the second air channel in a communicating mode, and a third air channel is formed in the box body. The noise reduction device reduces the temperature and dissipates the heat through the fan and the cooling pipe, effectively reduces the noise generated by the air channel and the inner rotor through the noise absorption of the multi-stage noise reduction channel and the soundproof cotton, radically reduces the noise pollution, enhances the heat dissipation efficiency of the motor and prolongs the service life.

Description

Motor silencing device

Technical Field

The invention relates to a motor silencing device, in particular to a silencing device.

Background

An electric machine (also known as "motor") refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. The motor production in China begins in 1917, and the industry forms a relatively complete industry system in China. The motor manufacturing industry in China shows bobby vitality along with the development of electric power, and the production and marketing scale and the economic benefit are greatly improved. When an existing motor operates, noise is often generated at the positions where an inner rotor rotates, a motor bearing and a structural member resonate and ventilate, the noise interferes with working efficiency, uneasiness is generated, attention is dispersed, high-difficulty work or high-skill work is particularly influenced, alternating current and warning signals are blocked, and accidents are caused.

Disclosure of Invention

The invention aims to provide a motor silencing device which drives a centrifugal fan and a radiating fan to rotate through the rotation of a rotating shaft of a motor, the radiating fan blows part of air inwards through a first air cover, a cooling pipe reduces the air temperature to further cool the motor, the air is blown out through an air channel between the first air cover and a second air cover, and the centrifugal fan sucks the other part blown out by the radiating fan into the motor from an air inlet and blows out the other part through a silencing box. The noise reduction device is convenient to operate, effectively reduces the noise generated by the air channel and the inner rotor through the noise absorption of the multistage noise reduction channels and the soundproof cotton, radically reduces the noise pollution, enhances the heat dissipation efficiency of the motor and prolongs the service life.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a motor silencing device, silencing device includes the motor, be equipped with first soundproof cotton in the motor, be equipped with first wind lid on the motor, be equipped with second wind lid on the motor, be equipped with the whistle box on the second wind lid, be equipped with the second soundproof cotton in the whistle box, be equipped with centrifugal fan on the motor, be equipped with radiator fan on the motor.

The sound-muffling box comprises a box body, wherein first exhaust holes which are symmetrically distributed are formed in the box body, a first air channel is formed in the box body, second exhaust holes which are symmetrically distributed are formed in the first air channel, a second air channel is formed in the box body, a third exhaust hole is formed in the second air channel in a communicating mode, and a third air channel is formed in the box body.

Further, the motor comprises a casing, a heat dissipation block is arranged on the casing, connecting holes distributed in an array mode are formed in the casing, an annular groove is formed in the casing and communicated with the connecting holes, the connecting holes are communicated with the inside of the casing, a rotating shaft is arranged in the casing in a rotating mode, a rear end cover is arranged at one end of the casing, an air inlet is formed in the rear end cover, supporting legs are arranged at the bottom of the casing, and a shock pad is arranged at the bottom of the supporting legs.

Further, the air inlet is communicated with the inside of the machine shell, the first soundproof cotton is matched with the circular groove, the centrifugal fan is fixedly connected with the rotating shaft, and the radiating fan is fixedly connected with the rotating shaft.

Further, first wind lid includes first wind lid main part, is equipped with the cooling tube in the first wind lid main part, is equipped with the inlet scoop in the first wind lid main part, and the inside parcel of first wind lid main part has third soundproof cotton, first wind lid main part and casing fastening connection.

Further, the second wind lid includes second wind lid main part, and the parcel has the fourth soundproof cotton in the second wind lid main part, and second wind lid main part and supporting legs fastening connection, first wind lid and second wind lid form the return air duct.

Furthermore, a front cover plate is arranged on the box body, a rotating shaft hole is formed in the front cover plate, and a matching hole is formed in the box body.

Furthermore, the matching hole is communicated with the first air channel, the second exhaust hole is communicated with the second air channel, the third exhaust hole is communicated with the third air channel, the rotating shaft penetrates through the box body and is matched with the rotating shaft hole, the centrifugal fan is located in the matching hole, and the box body is tightly connected with the shell.

Furthermore, the second soundproof cotton wraps the inner wall of the box body, and the inner walls of the first air duct, the second air duct and the third air duct are wrapped with silencing cotton.

The invention has the beneficial effects that:

1. the noise reduction device is convenient to operate, noise generated by the air channel and the internal rotor is effectively reduced through noise absorption of the multistage noise reduction channels and the soundproof cotton, and noise pollution is radically reduced;

2. the air duct of the silencer blows the low air temperature on the surface of the cooling pipe and diffuses, so that the heat dissipation efficiency of the motor is enhanced, and the service life is prolonged.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a silencer assembly according to the present invention;

FIG. 2 is a schematic view of a portion of the muffler assembly of the present invention;

FIG. 3 is a schematic view of a first wind cover structure according to the present invention;

FIG. 4 is a schematic view of the sound muffling box of the present invention;

fig. 5 is a cross-sectional view of the sound muffling box of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a motor silencing device, silencing device includes motor 1, as shown in figure 1, is equipped with first soundproof cotton 2 in the motor 1, is equipped with first wind lid 3 on the motor 1, is equipped with second wind lid 4 on the motor 1, is equipped with noise silencer box 5 on the second wind lid 4, is equipped with second soundproof cotton 6 in the noise silencer box 5, is equipped with centrifugal fan 7 on the motor 1, is equipped with radiator fan 8 on the motor 1.

The motor 1 includes a housing 11, as shown in fig. 1 and fig. 2, a heat dissipation block 111 is disposed on the housing 11, connection holes 12 distributed in an array are disposed in the housing 11, a circular groove 13 is disposed in the housing 11, the circular groove 13 is communicated with the connection holes 12, the connection holes 12 are communicated with the inside of the housing 11, a rotating shaft 14 is disposed in the housing 11, one end of the housing 11 is provided with a rear end cover 15, an air inlet 151 is disposed on the rear end cover 15, supporting legs 16 are disposed at the bottom of the housing 11, a shock-proof pad is disposed at the bottom of the supporting legs 16, the air inlet 151 is communicated with the inside of the housing 11, a first soundproof cotton 2 is matched with the circular groove 13, a centrifugal fan 7 is fastened to the rotating shaft 14, and a heat dissipation fan 8 is fastened to the rotating shaft 14.

First wind lid 3 includes first wind lid main part 31, as shown in fig. 3, is equipped with cooling tube 32 on the first wind lid main part 31, is equipped with inlet scoop 33 on the first wind lid main part 31, and the inside parcel of first wind lid main part 31 has third soundproof cotton 34, first wind lid main part 31 and casing 11 fastening connection.

The second wind cover 4 comprises a second wind cover main body 41, as shown in fig. 2, fourth soundproof cotton 42 is wrapped in the second wind cover main body 41, the second wind cover main body 41 is fixedly connected with the supporting legs 16, and the first wind cover 3 and the second wind cover 4 form a square wind channel.

The sound muffling box 5 comprises a box body 51, as shown in fig. 4 and 5, first exhaust holes 52 are symmetrically distributed on the box body 51, a front cover plate 53 is arranged on the box body 51, a rotating shaft hole 531 is arranged on the front cover plate 53, a matching hole 54 is arranged on the box body 51, a first air duct 55 is arranged in the box body 51, second exhaust holes 551 are symmetrically distributed on the first air duct 55, a second air duct 56 is arranged in the box body 51, a third exhaust hole 561 is communicated on the second air duct 56, a third air duct 57 is arranged in the box body 51, the matching hole 54 is communicated with the first air duct 55, the second exhaust hole 551 is communicated with the second air duct, the third exhaust hole 561 is communicated with the third air duct 57, the rotating shaft 14 penetrates through the box body 51, the rotating shaft 14 is matched with the rotating shaft hole 531, the centrifugal fan 7 is located in the matching hole 54, and the box body 51 is fixedly connected with the housing 11.

The second soundproof cotton 6 wraps the inner wall of the box body 51, and the inner walls of the first air duct 55, the second air duct 56 and the third air duct 57 are wrapped with silencing cotton.

When the silencer is used, the rotating shaft 14 of the motor 1 rotates to drive the centrifugal fan 7 and the radiating fan 8 to rotate, part of air is blown inwards by the radiating fan 8 through the first air cover 3, the air temperature is reduced by the cooling pipe, the motor 1 is cooled, the air is blown out through the air channel between the first air cover 3 and the second air cover 4, the other part blown out by the radiating fan 8 is sucked into the motor 1 through the air inlet by the centrifugal fan 7 and is blown out through the silencing box 5.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A motor silencing device comprises a motor (1), and is characterized in that first soundproof cotton (2) is arranged in the motor (1), a first air cover (3) is arranged on the motor (1), a second air cover (4) is arranged on the motor (1), a silencing box (5) is arranged on the second air cover (4), second soundproof cotton (6) is arranged in the silencing box (5), a centrifugal fan (7) is arranged on the motor (1), and a heat dissipation fan (8) is arranged on the motor (1);

the first air cover (3) comprises a first air cover main body (31), a cooling pipe (32) is arranged on the first air cover main body (31), an air suction opening (33) is formed in the first air cover main body (31), third soundproof cotton (34) wraps the first air cover main body (31), and the first air cover main body (31) is fixedly connected with the machine shell (11);

the second air cover (4) comprises a second air cover main body (41), fourth soundproof cotton (42) is wrapped in the second air cover main body (41), the second air cover main body (41) is fixedly connected with the supporting legs (16), and the first air cover (3) and the second air cover (4) form a return air duct;

the sound muffling box (5) comprises a box body (51), first exhaust holes (52) which are symmetrically distributed are formed in the box body (51), a first air channel (55) is formed in the box body (51), second exhaust holes (551) which are symmetrically distributed are formed in the first air channel (55), a second air channel (56) is formed in the box body (51), a third exhaust hole (561) is communicated with the second air channel (56), and a third air channel (57) is formed in the box body (51);

a front cover plate (53) is arranged on the box body (51), a rotating shaft hole (531) is formed in the front cover plate (53), and a matching hole (54) is formed in the box body (51);

the matching hole (54) is communicated with the first air channel (55), the second exhaust hole (551) is communicated with the second air channel, and the third exhaust hole (561) is communicated with the third air channel (57);

the second soundproof cotton (6) wraps the inner wall of the box body (51), and the inner walls of the first air duct (55), the second air duct (56) and the third air duct (57) are wrapped with silencing cotton.

2. The motor silencer according to claim 1, wherein the motor (1) includes a housing (11), the housing (11) has heat dissipating blocks (111), the housing (11) has connecting holes (12) distributed in an array, the housing (11) has circular grooves (13), the circular grooves (13) communicate with the connecting holes (12), the connecting holes (12) communicate with the inside of the housing (11), the housing (11) has a rotating shaft (14) rotating therein, one end of the housing (11) has a rear end cap (15), the rear end cap (15) has an air inlet (151), the bottom of the housing (11) has supporting legs (16), and the bottom of the supporting legs (16) has a shock pad.

3. The motor silencing device of claim 2, wherein the air inlet (151) is communicated with the inside of the housing (11), the first soundproof cotton (2) is matched with the annular groove (13), the centrifugal fan (7) is tightly connected with the rotating shaft (14), and the heat radiation fan (8) is tightly connected with the rotating shaft (14).

4. A motor silencer according to claim 2, characterized in that the shaft (14) passes through the housing (51), the shaft (14) is fitted into the shaft hole (531), the centrifugal fan (7) is located in the fitting hole (54), and the housing (51) is fastened to the casing (11).