KR20150002179A

KR20150002179A - Air flow path structure to improve noise reduction and suction through generate liminar and Cleaner comprising the same

Info

Publication number: KR20150002179A
Application number: KR1020130075696A
Authority: KR
Inventors: 박종현; 전두열
Original assignee: 코웨이 주식회사
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2015-01-07

Abstract

The present invention relates to an air passage structure for a noise reduction and an increased suction force through generating a laminar flow and a cleaner comprising the same by increasing a current velocity and converting a turbulence to the laminar flow by additionally installing a guide vane structure on a front end portion of a cleaner motor and reducing an air passage area and forming the guide vane to refine the air converted to the laminar flow inside the air passage. The present invention comprises: the air passage structure(100), a dust collecting portion(10), the guide vane structure(20) combined to the dust collecting portion, and a motor case(30).

Description

TECHNICAL FIELD [0001] The present invention relates to a flow path structure having a noise reduction function and a suction force enhancement function through laminar flow generation, and a vacuum cleaner including the flow path structure to improve noise reduction and suction flow.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow path structure capable of generating laminar flow and a vacuum cleaner including the flow path structure. More particularly, the present invention relates to a flow path structure for reducing airflow in a cleaner, And to improve the suction force and the noise reduction effect by increasing the flow velocity, and a vacuum cleaner including the same.

Some household appliances in the home generate significant levels of vibration and noise. The noise of home appliances, which are uncomfortable to everyday life, can be the main cause of stress.

Exposure to vibration and noise for a long time can be adversely affected psychologically and physiologically, such as lowering of thinking ability, obstruction of sleep, increase of mental fatigue. A vacuum cleaner can be selected as the worst noise among the products which may cause adverse effects.

The noise of such a vacuum cleaner is generated not only by the noise generated by the motor itself but also by the flow resistance of the suctioned fluid.

However, in most conventional vacuum cleaners, the flow path of the vacuum cleaner is often arranged in a straight line for efficiency. In this case, the air sucked from the outside of the vacuum cleaner enters into the dust collecting chamber where the space is expanded, A large amount of noise is generated while being sucked into the motor.

Korean Patent No. 10-0545269 discloses a motor structure for reducing noise, but it relates to a structure for reducing noise by extending the length of a discharge passage when discharging air sucked into a motor, And turbulence generation at the motor front end can not be completely suppressed.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the prior art described above, and it is an object of the present invention to provide a guide vane structure at the front portion of a motor, And a guide vane for purifying the air converted into laminar flow in the flow path, thereby improving the suction force and effectively reducing the noise, and a cleaner including the same.

To achieve the above object, a channel structure 100 of the present invention includes a dust collecting section 10, a guide vane structure 20 coupled to a dust collecting section, and a motor case 30.

A guide vane 21 may be formed in the guide vane structure 20.

It is preferable that the guide vanes 21 are formed in a spiral shape in which the distance between the guide vanes 21 is gradually narrowed toward the guide vane outlet 20.

It is preferable that the guide vane 21 is coupled to the flow hole 11 formed at the bottom of the rear surface of the dust collecting part 10.

The flow path structure 100 may further include an exhaust part 40.

Also, a vacuum cleaner including the channel structure 100 is provided.

The flow path structure according to the present invention configured as described above prevents air from flowing down through the flow holes formed in the dust collecting part and increasing the flow velocity, thereby lowering the suction force due to the flow velocity reduction in the conventional flow path structure.

Also, by installing a guide vane structure, the air having the increased flow rate can be converted into laminar flow and refined to obtain a noise reduction effect at the same time.

1 is a perspective view of a vacuum cleaner 1 including a channel structure 100 according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of the channel structure 100. Fig.
Fig. 3 is a front view of the channel structure excluding the dust collecting section 10, showing the air flow in the guide vane structure 20. Fig.
Fig. 4 is a side view of the flow path structure 100, showing the air flow in the flow path structure 100. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a channel structure according to the present invention and a vacuum cleaner including the channel structure will be described in detail with reference to the accompanying drawings.

The flow path structure of the present invention and the vacuum cleaner including the flow path structure may be integrally manufactured or separately manufactured as needed.

In addition, some components may be omitted depending on the usage pattern.

Explanation of the structure of the vacuum cleaner (1).

The vacuum cleaner 1 according to the embodiment of the present invention includes a suction head 2 for suctioning air and dust while being moved in a state close to the floor surface, an extension tube 3 connected to one end of the suction head 2, 3 and connected to the hose 4 and the hose 4 for guiding air and dust introduced through the suction head 2 and connected to the hood 4 and a flow path body 100 to be described later and a cleaner main body 5 ).

The suction head 2 is connected to the cleaner main body 5 and the extension pipe 3 and the hose 4.

When the motor assembly 40, which will be described later, provided in the cleaner main body 5 rotates and generates a suction force, the suction head 2 sucks air and dust.

One end of the extension pipe 3 is connected to the suction head 2 and the other end of the extension pipe 3 is connected to the hose 4.

In the extension tube 3, the air and the dust sucked in the suction head 2 flow. Air and foreign matter flow into the hose (4) connected to the extension pipe (3).

The extension tube 3 can be manufactured to have a length adjusted according to the embodiment. In this case, the length of the extension pipe 3 can be adjusted by the user's operation. Also, according to the embodiment, the extension pipe 3 may be integrally manufactured so that its length is not adjusted.

One end of the hose 4 is connected to the extension pipe 3 and the other end of the hose 4 is connected to the cleaner main body 5.

Also, the hose 4 may be made in the form of a corrugated pipe made of a soft material freely movable for easy cleaning.

In addition, dust and air sucked in the suction head 2 through the extension pipe 3 flow into the hose 4.

The cleaner main body 5 includes a channel structure 100 inside thereof, and an upper portion thereof is sealed by a cleaner main cover 6.

The cleaner main body lid 6 may include a front lid 6a and a rear lid 6b according to an embodiment, and may be integrally manufactured according to the embodiment.

The channel structure 100 included in the vacuum cleaner 1 will be described later.

Explanation of the structure of the flow path structure 100.

The flow path structure 100 according to an embodiment of the present invention includes a dust collecting portion 10, a guide vane structure 20, and a motor case assembly 30.

The dust collecting part 10 is formed in a hollow shape and has a predetermined diameter so that air including dust and the like that has passed through the suction head 2, the extension pipe 3, and the hose 4 from outside, (12) is formed, and a flow hole (11) through which the introduced air can be discharged is formed.

In addition, a dust bag (not shown) is included in the hollow. Accordingly, dust or the like contained in air passing through the air inlet 12 from the outside is collected in the dust bag, and the air from which the dust and the like are removed flows into the flow hole 11. [

The flow hole 11 is disposed below the dust collecting part 100 (that is, on the opposite side of the air inlet part 12) so that the air introduced from the outside flows through the dust collecting part 10 and the dust collecting part 10, Sectional area of the flow hole 11 by passing through a dust bag in the flow hole 11, thereby decreasing the suction loss that may occur according to the reduced flow rate.

As can be seen from the embodiment shown in the accompanying drawings, the flow holes 11 are formed in a rectangular parallelepiped shape having four quadrangular sections defined by the partition walls. However, the flow holes 11 are formed according to the use, manufacturing conditions, Shape, number, and arrangement of the components.

The guide vane structure 20 is coupled to the outside of the dust collecting portion 10 and a guide vane inlet 23 disposed at a lower portion of the guide vane structure 20 communicates with the flow hole 11 so that air can flow .

A guide vane outlet 22 is disposed in the upper portion of the guide vane structure 20. A guide vane outlet 22 is disposed at an upper portion of the guide vane structure 20 and communicated with the flow hole 11 so that air passing through the flow hole 11 can be diffracted upward, A guide vane 21 is formed toward the guide vane outlet 22 side.

The guide vane 21 is in the form of a partition for partitioning the inside of the guide vane structure 20 and has a plurality of openings communicating with the flow holes 11 so as to secure a space through which the air flows.

The guide vanes 21 may be curved toward the guide vane outlet 22, and when the guide vanes 21 are formed in a plurality of shapes, the guide vanes 21 may have different curvatures, The guide vanes 21 may be formed in a spiral shape in which the width between the guide vanes 21 is gradually narrowed.

As a result, air having passed through the flow hole 11 and having a higher flow rate is diffused upward in the guide vane structure 20, flows along the guide vane 21, is converted into laminar flow, purified and passes through the guide vane outlet 22 And shows the noise reduction effect.

The motor case 30 is coupled to the guide vane structure 20 and includes a front case 31 and a rear case 33 and a motor 32 therein.

The motor 32 is installed at a predetermined distance from the inner circumferential surface of the motor case 30 and has a suction port 35 having a predetermined diameter for sucking air when the motor 32 is driven.

The front case 31 has a shape corresponding to the front of the rear case 33 and is hermetically coupled to the rear case 20. A second air inflow portion 34 having a predetermined diameter is provided at a center And the second air inflow portion 34 and the guide vane outlet 22 of the guide vane structure 20 are communicated and connected.

The rear case 33 is hermetically engaged with the front case 31 as described above and discharges the air that has passed through the air inflow portion 34 and the motor 32 to the outside.

In addition, the air passage structure 100 may further include an exhaust part 40.

The exhaust part 40 is coupled with the rear of the motor case 30 so that the air flowing out of the motor case 30 is diffused once more along the inner wall surface of the exhaust part 40 to be discharged to the outside, Can be further improved.

The operation of the flow path structure 100 and the vacuum cleaner 1 including the same.

Hereinafter, the operation of the motor case and the vacuum cleaner 1 including the motor case according to the embodiment of the present invention will be described with reference to the accompanying drawings.

When the motor 32 is powered by the vacuum cleaner, air is sucked through the suction head 2, the extension pipe 3, and the hose 4, and the sucked air is sucked into the dust collecting unit 10 Passes through the motor case 30 and is discharged to the outside of the vacuum cleaner through the exhaust part 40.

More specifically, air sucked from the suction head 2 to the dust collecting section 10 is collected in the dust bag (not shown) in the dust collecting section.

3 and 4, the air introduced into the dust collecting unit 10 flows into the guide vane structure 20 through the guide vane inlet 23 communicated with the flow hole 11 at the lower rear end thereof. And flows toward the upper guide vane outlet 22 along the inner guide vane 21 to undergo a flow rate increase and a laminar flow conversion process.

The air that has passed through the outlet of the guide vane structure 20 flows into the motor 32 through the front case 31 and is discharged to the rear case 33. The air flows into the exhaust part 40, Is diffused upward along its inner wall surface, and is discharged to the outside of the vacuum cleaner.

Thereby, the air having the firstly reduced noise flowing out from the rear case (33) passes through the exhaust part (40), and the secondary noise reduction effect can be obtained.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated that other embodiments are possible. Accordingly, the scope of protection of the present invention should be determined by the claims.

1: Cleaner
2: suction head
3: extension tube
4: Hose
5: Cleaner body
6: Cleaner body cover
100: flow structure
10: Dust collector
11:
12: Air inlet
20: Guide vane structure
21: Guide vane
22: Guide vane exit
23: Guide vane entrance
30: Motor case
31: Front motor case
32: Motor
33: rear motor case
34: second air inlet
35:
40: exhaust part

Claims

A hollow dust collecting part (10);
A guide vane structure 20 coupled to the rear of the dust collection unit 10; And
And a motor case (30) coupled to the rear of the guide vane structure (20)
The guide vane structure 20 includes a plurality of guide vanes 21 partitioning the inner air into a plurality of partition walls so that the air can be diffracted.
Characterized in that the guide vanes (21) are gradually spaced apart from each other in the direction of the guide vane outlet (22)
A flow structure (100).

The method according to claim 1,
Characterized in that the guide vane (21) is formed in a spiral shape toward the guide vane outlet (22)
A flow structure (100).

The method according to claim 1,
The channel structure (100)
An exhaust unit 40 which is coupled to the rear of the motor case 30 and allows the air to flow out to the outside along the inner surface;
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A flow structure (100).

3. The method of claim 2,
Wherein the plurality of guide vanes (21) communicate with flow holes formed in a lower rear end of the dust collecting part (10)
A flow structure (100).

A channel structure (100) according to any one of claims 1 to 4;
A main body 5 for accommodating the channel structure 100; And
A suction head 2 connected to the main body 5;
Including,
Cleaner (1).