KR101436631B1 - Vacuum cleaner - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner capable of reducing noise radiated from a motor to the outside.

A vacuum cleaner according to an embodiment of the present invention includes a cleaner main body; A motor for providing driving force for sucking air into the cleaner main body; A first chamber accommodating the motor and formed with a first discharge portion through which air discharged from the motor passes, and a second chamber formed with a second discharge portion for discharging air discharged through the first discharge portion to the outside, A motor assembly having a motor assembly; And a compression member interposed between the motor and the chamber to reduce vibration of the motor. Wherein the first chamber has an outer chamber forming an outer appearance and an inner chamber accommodated inside the outer chamber, wherein the air discharge portion formed in the inner chamber and the air discharge portion formed in the outer chamber So that the air flow path is long.

According to the vacuum cleaner having the above-described structure, the noise generated in the motor is attenuated and the vacuum cleaner is further quenched.

A vacuum cleaner, a motor assembly, a first chamber, a second chamber

Description

Vacuum cleaner

An embodiment of the present invention relates to a vacuum cleaner.

Generally, a vacuum cleaner is a device for sucking dust-containing air using a suction force generated by a suction motor mounted inside a main body, and then filtering dust inside the main body.

Such a vacuum cleaner can be largely divided into a canister type in which a nozzle portion as an intake port is separately provided from the main body and connected by a connection pipe, and an upright type in which the nozzle portion is integrally formed with the main body.

The vacuum cleaner includes a vacuum cleaner main body having a suction motor, a suction nozzle for sucking air containing dust on the bottom surface, a connection portion for allowing air sucked by the suction nozzle to move to the cleaner main body, And a dust collecting device mounted on the cleaner main body for storing dust separated from the sucked air.

The user moves the suction nozzle to suck air containing dust on the bottom surface. In the process of moving the suction nozzle, the cleaner body moves along the suction nozzle.

Further, inside the cleaner main body, a motor assembly for sucking air containing foreign matter from the surface to be cleaned is provided. The motor assembly is generally provided with a motor for generating a driving force and a fan for rotating the motor assembly to draw air.

On the other hand, according to the conventional vacuum cleaner, there is a problem that noise is generated from the air flowing by the driving of the motor. In addition, a predetermined vibration is generated from the driven motor, and the vibration is transmitted to the motor chamber or the cleaner main body in which the motor is mounted, thereby generating noise.

Therefore, conventionally, much efforts have been made to reduce noise due to air flow and motor vibration.

An embodiment of the present invention has been proposed under the background as described above, and it is an object of the present invention to improve a structure of a vacuum cleaner to reduce noise generated from air flowing through a suction motor.

It is another object of the present invention to provide a structure capable of attenuating vibration of a motor in order to reduce noise generated by vibration of a driven motor.

According to an aspect of the present invention, there is provided a vacuum cleaner including: a vacuum cleaner main body; A motor for providing driving force for sucking air into the cleaner main body; A first chamber accommodating the motor and formed with a first discharge portion through which air discharged from the motor passes, and a second chamber formed with a second discharge portion for discharging air discharged through the first discharge portion to the outside, A motor assembly having a motor assembly; And a compression member interposed between the motor and the chamber to reduce vibration of the motor. Wherein the first chamber has an outer chamber forming an outer appearance and an inner chamber accommodated inside the outer chamber, wherein the air discharge portion formed in the inner chamber and the air discharge portion formed in the outer chamber So that the air flow path is long.

According to another aspect of the present invention, there is provided a vacuum cleaner comprising: a cleaner main body; A motor for providing driving force for sucking air into the cleaner main body; A first chamber accommodating the motor and formed with a first discharge portion through which air discharged from the motor passes, and a second chamber formed with a second discharge portion for discharging air discharged through the first discharge portion to the outside, A motor assembly having an air flow path through which air discharged from the motor flows; And a vibration damping member provided at one side of the chamber for damping vibration generated in the motor; And the air flow path includes a first air flow path formed along the lower side of the motor and a second air flow path formed along the outer peripheral surface of the motor.

According to the embodiment of the present invention, the air outlet from the motor is formed on the front and the lower surface of the motor chamber, so that the air flow path is bent from the front to the rear, thereby reducing the noise generated from the air flow There is an advantage that it can be.

In addition, since a compression member is provided in a certain space between the motor and the chamber and a space between the chamber and the chamber, the vibration generated from the motor can be damped, thereby reducing the noise due to the motor vibration.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line I-I 'of FIG.

1 and 2, a vacuum cleaner 1 according to the present embodiment includes a vacuum cleaner body 10 forming an outer appearance, a vacuum cleaner body 10, An apparatus 20, and a moving wheel 30 for moving the cleaner body 10.

A connection hose (not shown) is connected to the front end of the cleaner main body 10 and an air inlet 11 through which air sucked through a suction nozzle (not shown) is sucked into the cleaner main body 10, .

In addition, the cleaner main body 10 includes a motor assembly 100 for sucking air including dust from a surface to be cleaned. The motor assembly 100 includes a motor (to be described later) that provides a driving force to draw air into the motor assembly 100 and a motor chamber (to be described later) to which the motor is mounted.

An air discharging portion 12 is provided at a rear end of the main body 10 and is provided at one side of the motor assembly 100 for discharging air passing through the motor assembly 100 to the outside. The air discharge unit 12 may communicate with the second discharge unit of the second chamber to be described later.

Hereinafter, the configuration of the motor assembly 100 will be described with reference to the drawings.

FIG. 3 is a perspective view illustrating a configuration of a motor assembly according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a motor assembly according to an embodiment of the present invention, FIG. 5 is a cross- FIG.

3 and 4, the motor assembly 100 according to the embodiment of the present invention includes a motor 110 for providing a driving force and a plurality of motor chambers for accommodating the motor 110. The motor chamber includes a first chamber 120 provided on the outer side of the motor to receive the motor 110 and a second chamber 130 provided on the outer side of the first chamber 120 .

Here, a fan (not shown) may be provided at one side of the motor 110 to generate an air suction force by using the rotational force of the motor 110. In addition, the motor 110 and the fan may be formed as a single body during the manufacturing process.

The first chamber 120 includes an outer chamber 121 and an inner chamber 122 in which the motor 110 is accommodated and a first chamber cover 122 covering the upper portions of the outer and inner chambers 121, 124).

The second chamber 130 includes a second chamber main body 131 accommodating the first chamber 120 and a second chamber cover 132 provided on the upper side of the second chamber main body 131, . The second chamber cover 132 covers the upper portion of the second chamber body 131 in a state where the motor 130 and the first chamber 120 are accommodated in the second chamber 130.

The motor assembly 100 includes a plurality of pressing members 141 and 142 for reducing vibrations of the motor 110. The pressing member includes a first pressing member 141 inserted between the motor 110 and the first chamber 120 and a second pressing member 141 inserted between the first chamber 120 and the second chamber 130. [ And a second pressing member 142 is provided.

Here, the first pressing member 141 and the second pressing member 142 fill the space between the motor and the chamber and function to absorb vibration generated from the motor 110. The compression members 141 and 142 may be made of a rubber material so that vibrations generated from the motor 110 can be easily attenuated.

Also, air is sucked from above the motor assembly 100 and flows out to the rear of the motor assembly 100. An air intake port 111 through which air is sucked is formed at an upper end of the motor 110 and a second discharge port 133 through which air is discharged is formed at a rear end of the second chamber 130 .

One end of the motor 110 is connected to an air outlet 112 for discharging the air sucked into the motor 110 through the air inlet 111 to the outside of the motor 110 after passing through the motor 110 ). The air discharged through the air discharge unit 112 may be transferred to the first chamber 120.

The first and second chambers 120 and 120 are formed with a first discharge unit 123 for discharging air discharged through the air discharge unit 112 to the outside of the first chamber 120. Here, the first discharge part 123 is formed as a plurality of holes, and guides the air to be discharged to the outside through the holes.

The air is sucked into the motor 110 through the air inlet 111 and discharged to the air outlet 112. The discharged air flows through the first chamber 120 to the second chamber 130 And then discharged to the outside through the second discharging unit 133. [0064]

The first chamber 120 is provided with an outer chamber 121 forming an outer appearance, an inner chamber 122 accommodated inside the outer chamber 121, and an upper surface of the outer chamber 121, A first chamber cover 124 is provided.

The outer chamber 121 and the first chamber cover 124 are coupled to each other at the coupling part 125. The coupling part 125 may be configured such that the protrusion of the first chamber cover 124 is coupled to the coupling groove of the outer chamber 121.

A packing part 151 for vibrating the first chamber 120 and the second chamber 130 by vibration of the motor 110 is provided on the lower surface of the outer chamber 121. [ That is, since the first chamber 120 is accommodated in the second chamber 130, a packing member can be interposed in a portion where the chambers 120 and 130 are in contact with each other. The plurality of packing portions 151 may be provided so that vibrations are dispersed and absorbed by the plurality of packing portions 151 in a state where the first chamber 120 is seated in the second chamber 130 have.

In other words, the compression members 141 and 142 and the packing unit 151 absorb vibrations generated from the motor 110 to attenuate noise caused by vibration and vibration transmitted to the outside, can do.

6 is a cross-sectional view taken along line II-II 'of FIG.

Referring to FIG. 6, a motor assembly 100 according to an embodiment of the present invention includes a motor 110 for providing a driving force for sucking air, a motor 110 for housing the outer chamber 121, A first chamber 120 including a chamber 122 and a second chamber 130 accommodating the first chamber 120 are included.

Specifically, the motor 110 has a substantially cylindrical shape. An air intake port 111 through which air is sucked is formed at an upper end of the motor 110.

The first chamber 120 is spaced apart from the motor 110 by a predetermined distance. The inner chamber 122 is installed from the outside of the motor 110 and the outer chamber 121 is installed in order from the inner chamber 122 by a predetermined distance.

Since the inner chamber 122 and the outer chamber 121 are spaced apart from the motor 110 by a predetermined distance, the first chamber 120 is generated from the motor 110 during operation of the vacuum cleaner, So that the noise propagated to the outside is attenuated. That is, the first chamber 120 is provided with a double structure of the inner and outer chambers 121 and 122, so that the noise can be reduced.

Likewise, since the second chamber 130 is installed at a predetermined distance from the first chamber 120, the noise generated from the motor 110 may be attenuated.

An air outlet 112 is formed at one side of the motor 110 to discharge the air sucked through the air inlet 111 to the outside of the motor 110 through the inside of the motor 110 .

The air sucked into the motor 110 through the air inlet 111 passes through the motor 110 and the first chamber 120 and then flows into the first chamber 120 through the air inlet 111. [ A plurality of primary discharging portions 123 are formed to discharge the toner to the outside of the developing device. The primary discharge unit 123 has a shape of a through hole through which the inside and the outside of the first chamber 120 pass, and may be formed toward the front and the bottom of the motor assembly 100.

The primary discharge portion 123 of the outer chamber 121 and the primary discharge portion 123 of the inner chamber 122 are arranged in a zigzag shape without being arranged in a line toward the front. That is, the air flow discharged through the primary discharge part 123 of the inner chamber 122 is bent by a predetermined distance and then discharged through the primary discharge part 123 of the outer chamber 121 have. As a result, the length of the flow path through which the air flows becomes longer, and thus the noise can be reduced.

The second chamber 130 is provided with a secondary discharge unit 133 for discharging the air leaving the first chamber 120 through the primary discharge unit 123 from the motor assembly 100 .

The secondary discharge portion 133 may be formed on the opposite side of the primary discharge portion 123, that is, toward the rear of the motor assembly 100.

That is, the air discharged through the primary discharging unit 123 is moved backward along the lower or left and right sides of the first chamber 120, and then discharged through the secondary discharging unit 133 . By the air flow, the air flow path becomes longer, and thus the noise due to the air flow is attenuated.

A first pressing member 141 is disposed between the motor 110 and the first chamber 120 to absorb vibrations generated from the motor 110. The first chamber 120, A second pressing member 142 is interposed between the second chambers 130.

That is, the first pressing member 141 and the second pressing member 142 fill the space between the motor 110 and the chambers 120 and 130 so that the vibrations caused by the motor 110 There is an advantage that it can be minimized.

The pressing members 141 and 142 may have a shape corresponding to the motor 110 and the chambers 120 and 130 so that the motor 110 and the chambers 120 and 130 can be closely contacted.

The motor assembly 100 further includes a packing unit 151 disposed between the first chamber 120 and the second chamber 130 to reduce vibrations generated by the motor 110 . Here, the packing part 151 may be formed of a rubber member.

The first chamber 120 is seated inside the second chamber 130. The vibration of the motor 110 is transmitted to the second chamber 130 through the surface on which the first chamber 120 is seated. The vibration of the motor 110 is transmitted to the second chamber 130 by the packing unit 151, The effect of attenuation can be achieved.

Hereinafter, how the air sucked into the cleaner main body 10 passes through the motor assembly 100 will be described.

7 is a cross-sectional view illustrating air flow through a motor assembly according to an embodiment of the present invention.

Referring to FIG. 7, when the motor 110 is driven to generate a suction force, the vacuum cleaner sucks air containing dust from the surface to be cleaned. After the dust in the air is separated, the dust-separated air is moved to the rear of the cleaner body 10.

The moved air can be sucked into the motor 110 from the upper side of the motor assembly 100. The sucked air passes through the inside of the motor 110 and is discharged to the outside of the motor 110 through the air outlet 112.

Then, the air passes through the inner chamber 122 and the outer chamber 121 through the primary discharge portion 123.

As described above, the primary discharge unit 123 is formed on the front and bottom surfaces of the first chamber 120, and the primary discharge unit 123 formed on the lower surface of the first chamber 120 The discharged air can flow along the lower side (air flow direction A) of the first chamber 120, that is, along the first air flow path. The air will be discharged to the outside through the second discharge part 133 of the second chamber 130.

At least a part of the air discharged through the primary discharge part 123 formed on the front surface of the first chamber 120 may flow along the first air flow path as described above. On the other hand, the remaining air may flow along the outer circumferential surface (air flow direction B) of the first chamber 120, that is, along the second air flow path, and may be discharged to the outside through the second discharge portion 133 .

In summary, the first air passage and the second air passage may be formed to extend from the front side of the motor 110 to the rear side of the motor 110.

Since the air discharged from the motor 110 toward the front of the motor assembly 100 is moved to the rear of the motor assembly 100 and discharged to the outside toward the rear of the motor assembly 100, There is an effect that the flow path is long and the noise due to the air flow is accordingly reduced.

During the flow of the air, the motor 110 may generate noise due to vibration and vibration.

However, since the motor 110 and the chambers 120 and 130 are closely contacted by the pressing members 141 and 142, the vibration by the motor 110 can be absorbed by the pressing members 141 and 142. [ Accordingly, there is an advantage that the vibration transmitted to the chambers 120 and 130 and the cleaner body 10 is reduced in size.

A plurality of packing portions 151 for absorbing the vibration of the motor 110 are provided between the first chamber 120 and the second chamber 130 so that the first chamber 120 and the second chamber 130, It is possible to attenuate the magnitude of the vibration transmitted to the motor 130.

1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line I-I 'of FIG. 1; FIG.

3 is a perspective view showing a configuration of a motor assembly according to an embodiment of the present invention;

4 is an exploded perspective view of a motor assembly according to an embodiment of the present invention.

5 is a perspective view illustrating a configuration of a first chamber according to an embodiment of the present invention.

6 is a cross-sectional view taken along line II-II 'of FIG. 3;

7 is a cross-sectional view illustrating air flow through a motor assembly in accordance with an embodiment of the present invention.

Claims (13)

A cleaner main body; A motor for providing driving force for sucking air into the cleaner main body; A first chamber accommodating the motor and having a first discharge portion through which air discharged from the motor passes, and a second discharge portion discharging air discharged through the first discharge portion to the outside, A motor assembly having a second chamber for receiving the chamber; And A first pressing member inserted between the motor and the first chamber so that the vibration of the motor is attenuated, and a second pressing member inserted between the first chamber and the second chamber; / RTI > Wherein the first chamber comprises: And an air discharge portion formed in the inner chamber and an air discharge portion formed in the outer chamber are arranged so as to be shifted from each other so that the air is discharged from the inner chamber to the inner chamber, And a flow path of air flowing into the outer chamber is formed to be longer. The method according to claim 1, And the second discharge portion is formed on the opposite side of the first discharge portion. 3. The method of claim 2, In the pressing member, A first pressing member inserted between the motor and the first chamber, And a second compression member inserted between the first chamber and the second chamber. delete The method according to claim 1, Wherein the air discharge portion formed in the inner chamber and the air discharge portion formed in the outer chamber are arranged in a zigzag arrangement. 3. The method of claim 2, Wherein the first chamber is seated in the second chamber and the seating surface of the second chamber is provided with a packing portion for vibrating the motor. The method according to claim 1, Wherein the first discharge portion is formed to discharge air in front of the motor assembly, And the second discharge portion is formed to discharge air to the rear of the motor assembly. A cleaner main body; A motor for providing driving force for sucking air into the cleaner main body; A first discharge portion through which air discharged from the motor passes, an outer chamber formed to form an outer appearance, and an inner chamber accommodated in the outer chamber, wherein the first discharge portion includes an outer chamber and an inner chamber, And a second chamber in which a second discharge unit for discharging air discharged through the first discharge unit to the outside is formed and an air flow path through which the air discharged from the motor flows is formed A motor assembly for receiving the motor; And A vibration damping member provided on one side of the chamber for damping vibration generated in the motor; / RTI > Wherein, A first air passage formed along a lower side of the motor and a second air passage formed along an outer peripheral surface of the motor, Wherein the first and second discharge portions formed in the outer chamber and the inner chamber are arranged to be offset from each other to form the air flow path long. delete 9. The method of claim 8, Wherein the first air passage and the second air passage extend from a front side of the motor to a rear side of the motor. 9. The method of claim 8, In the vibration damping member, And a pressing member for allowing at least a part of the motor and the motor chamber to closely contact with each other. delete 9. The method of claim 8, Wherein the first chamber is seated inside the second chamber, and a packing portion for absorbing vibration of the motor is interposed between the first chamber and the second chamber.

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