KR101054586B1 - Nozzle of vacuum cleaner - Google Patents

Abstract

The present embodiment relates to a nozzle of a vacuum cleaner, and more particularly, to a nozzle of a vacuum cleaner to improve the nozzle structure of the vacuum cleaner to facilitate suction of air including dust.

The nozzle of the vacuum cleaner according to the present embodiment includes a nozzle body in which an air suction unit is formed; A fan assembly provided to the nozzle body and rotatably provided by air sucked through the air suction unit; And an agitator for separating dust from the surface to be cleaned while the fan assembly is rotated, the fan assembly comprising: a fan rotatably provided; And a fan guide provided outside the fan to guide the movement of air, and a first distance formed between one side of the fan and the fan guide is greater than a second distance formed between the other side of the fan and the fan guide. It is largely formed.

According to the nozzle of the vacuum cleaner according to the present embodiment, foreign matter can be easily sucked into the nozzle.

Fan assembly, fan, wing

Description

Nozzle of vacuunm cleaner

This embodiment relates to a nozzle of a vacuum cleaner.

The present embodiment relates to a nozzle of a vacuum cleaner, and more particularly, to a nozzle of a vacuum cleaner to improve the nozzle structure of the vacuum cleaner to facilitate suction of air including dust.

In general, a vacuum cleaner is a device that sucks air containing dust by using a vacuum pressure generated by a suction motor mounted inside the body, and then filters the dust inside the body.

Such a vacuum cleaner should flow smoothly until the air sucked from the suction nozzle is sucked into the cleaner body, and the dust should be easily separated from the air including the dust. This is an important criterion for determining the performance of the vacuum cleaner.

On the other hand, the suction nozzle of the vacuum cleaner may be proposed in various shapes and sizes depending on the type of the surface to be cleaned. A slightly larger suction nozzle may be used to clean the floor, but a slimmer nozzle may be more convenient when cleaning narrow corners or under the bed.

According to the conventional cleaner nozzle, when an excessive amount of foreign material is sucked there is a problem that the foreign material is caught in the nozzle is not easily sucked into the cleaner body.

In addition, when the flow path is narrowly formed inside the nozzle, when foreign matter such as hair or hair of a pet is sucked through the nozzle, there is a problem that the suction force is reduced by blocking the flow path.

The present embodiment aims to provide a nozzle of a vacuum cleaner that allows foreign matter present on the surface to be cleaned to be easily sucked into the body of the cleaner.

In addition, an object of the present invention is to provide a nozzle of a vacuum cleaner in which an internal flow path is largely secured so that foreign matter introduced through the nozzle can be easily moved to the cleaner body.

In addition, it is an object of the present invention to provide a nozzle of a vacuum cleaner to improve the structure of the nozzle so that the flow inside the nozzle can be made smoothly.

The nozzle of the vacuum cleaner according to the present embodiment includes a nozzle body in which an air suction unit is formed; A fan assembly provided to the nozzle body and rotatably provided by air sucked through the air suction unit; And an agitator for separating dust from the surface to be cleaned while the fan assembly is rotated, the fan assembly comprising: a fan rotatably provided; And a fan guide provided outside the fan to guide the movement of air, and a first distance formed between one side of the fan and the fan guide is greater than a second distance formed between the other side of the fan and the fan guide. It is largely formed.

According to another aspect, a nozzle of a vacuum cleaner includes: a nozzle body in which an air suction unit is formed; And a fan assembly provided to the nozzle body and rotatably provided by air sucked through the air suction unit, wherein the fan assembly includes: a fan rotatably provided; And a fan housing disposed to surround the fan and having a flow path through which air is moved, wherein the flow path includes: a first flow path provided on one side of the fan and the other flow path of the fan; A second flow path formed smaller is included.

According to the embodiment of the above configuration, the one-side flow path inside the nozzle is large is formed, the smooth flow is generated, there is an effect that the locking of the foreign matter can be minimized.

In addition, there is an effect that the other side flow path inside the nozzle is formed relatively small to prevent the suction flow back.

In addition, since the air sucked through the nozzle can be moved smoothly to the cleaner body has the advantage that the cleaner performance can be improved.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view showing a suction nozzle of the vacuum cleaner according to the present embodiment, Figure 2 is a perspective view showing a suction nozzle with the upper cover removed according to this embodiment, Figure 3 is a suction nozzle according to this embodiment Bottom perspective view showing the bottom of the house.

1 to 3, the suction nozzle 10 according to the present embodiment forms a lower appearance of the nozzle 10 and includes a nozzle body 100 in which a plurality of components are installed, and the nozzle body 100. The upper cover 20 is provided on the upper side of the main body 100 to shield the upper portion, and the connecting portion connected to the extension tube (not shown) to connect the nozzle 10 to the main body (not shown) of the cleaner ( 30, a moving wheel 40 to facilitate movement of the nozzle 10, and a foreign matter storage unit 50 in which at least some of the foreign matter sucked from the suction nozzle 10 are stored.

In detail, the nozzle main body 100 includes an intake unit 101 through which air containing dust is sucked from the surface to be cleaned, and an air sucked from the intake unit 101 toward the connection part 30 to be moved. A suction passage 103 is provided.

The suction part 101 may be formed to be opened in the bottom portion 100a of the nozzle body 100, and the suction flow path 103 may extend backward from the suction part 101.

In addition, the moving wheel 40 is provided on both sides of the nozzle body 100, the suction nozzle 10 can be easily moved by the moving wheel (40).

The nozzle body 100 is provided with an agitator 150 to dust off by scratching the surface to be cleaned. The agitator 150 is provided on the bottom portion 100a of the nozzle body 100 and is disposed in front of the suction unit 101. The dust separated from the surface to be cleaned by the agitator 150 may be sucked into the nozzle body 100 through the suction unit 101.

In addition, the air sucked through the suction unit 101 is moved to the connection unit 30 through the suction passage 103.

Although not shown in the drawing, the cleaner body is provided with a suction motor for generating a suction force, and air including dust may be sucked by the operation of the suction motor.

The agitator 150 is provided with a plurality of blades 152 provided to be movable to shake off dust on the surface to be cleaned. The plurality of blades 152 are spaced apart from each other in the horizontal direction.

On the other hand, between the suction passage 103 and the connecting portion 30, there is provided a fan assembly 110 rotatably provided by the air sucked. The fan assembly 110 includes a plurality of fans 112 (see FIG. 4) which are rotated by the thrust of the intake air.

Here, the suction channel 103 may be formed in the tangential direction of the fan 112 so that the fan 112 is easily rotated by the sucked air.

The fan assembly 110 includes a fan rotation shaft 118 that provides a center of rotation of the fan 112.

Meanwhile, a first pulley 121 that is rotated in the same direction as the fan rotation shaft 118 is connected to the fan rotation shaft 118. When the fan 112 is rotated, the fan rotation shaft 118 and the first pulley 121 is rotated in the same direction as the fan 112.

On one side of the fan assembly 110, a rotational force of the fan assembly 110 is transmitted, and a power conversion unit 130 is provided so that the rotational movement of the fan 112 is converted into a linear movement. The fan assembly 110 and the power conversion unit 130 are connected by a belt member 122.

The power conversion unit 130 includes a second pulley 131 connected to the belt member 122, a rotation shaft 134 forming a rotation center of the second pulley 131, and the rotation shaft 134. The eccentric shaft 135 and the eccentric shaft 135 connected to the rotating unit 132 and the rotating unit 132 and rotatably provided at a position eccentric from the rotating shaft 134 are accommodated. And a front and rear moving part 133 which is moved in the front and rear direction by interfering with the eccentric shaft 135.

In detail, the rotating shaft 134 extends from one side of the rotating part 132 toward the second pulley 131. In addition, the eccentric shaft 135 extends in the direction of the front and rear moving parts 133 from the other side of the rotating part 132.

The second pulley 131 and the rotating part 132 are rotated about the rotation axis 134 as a central axis, while the eccentric shaft 135 has a predetermined radius in the direction in which the rotating part 132 is rotated. Can be rotated.

That is, the second pulley 131 and the rotating unit 132 is rotated itself while the position does not change, while the eccentric shaft 132 is a radius of rotation by a distance spaced from the central axis of the rotating unit 132 Is rotated.

In this embodiment, as a means for transmitting power, a pulley and a belt member are applied. However, if power can be transferred from the fan assembly 110 to the power conversion unit 130, other power transmission means such as sprockets and chains may be applied.

On the other hand, the pulley may be referred to as a "rotation member" in that the rotation is connected to the fan, the belt member may be referred to as a "power transmission member" in terms of transmitting the rotational force of the pulley.

4 is a perspective view illustrating a configuration of a fan assembly according to the present embodiment, and FIG. 5 is a cross-sectional view taken along the line II ′ of FIG. 4.

4 and 5, the fan assembly 110 according to the present embodiment includes a fan housing 113 forming an outer appearance and rotatable by inhaled air provided inside the fan housing 113. A fan 112, a fan guide 115 provided outside the fan 112 to guide the flow of air, and a fan rotation shaft 118 providing a rotation center of the fan 112 are included.

In detail, a fan inlet 111 is provided below the front surface of the fan housing 113 to allow air sucked into the nozzle body 100 through the suction unit 101 to be introduced into the fan assembly 110. Is formed.

The fan inlet 111 is connected to the suction passage 103. That is, the air sucked through the suction unit 101 may pass through the suction passage 103 and may flow through the fan inlet 111.

The fan inlet 111 may be formed in a tangential direction of the fan 112 so that the fan 112 can be easily rotated by the air introduced therein.

The fan 112 is provided on one side of the fan inlet 111. The fan 112 includes a fan center 112a to which the fan rotation shaft 112 is coupled, and a plurality of wings 112b extending outwardly with a predetermined curvature from the fan center 112a.

The plurality of wings 112b may be disposed to be spaced apart from each other, and may be disposed in two stages. In FIG. 4, the plurality of wings 112b are arranged to cross each other in two stages. Alternatively, the plurality of wings 112b may be arranged in one stage or multiple stages.

In addition, the distance between one wing portion and the other wing portion adjacent to the wing portion 112b of the plurality of wings 112b may be formed to be widened toward the outside from the fan center 112a.

Meanwhile, the air introduced from the fan inlet 111 flows toward the lower side of the fan 112. That is, the air collides with the wing portion 112b positioned below the plurality of wing portions 112b.

In detail, the line in the direction in which the flow direction of the air sucked through the fan inlet 111 and the tangential direction of the fan 112 coincides with "L1", and the contact point is "P".

Among the plurality of wings 112a, the largest force by air is applied to the wings 112a at which the contact point “P” is formed. In other words, the largest pressure difference is generated on both sides of the lower wing portion 112b of the plurality of wing portions 112b, so that the largest force (thrust) can be applied.

The distance from the "P" to the lower inner surface of the fan housing 113 is referred to as "a", and the distance from the end of the rear wing portion 112b to the inner surface of the fan housing 113 is referred to as "b". When referred to, the fan housing 113 may be formed such that "b" is larger than "a".

Of course, a portion in which the distance "a" is formed will have a relatively small flow path.

In other words, after the air is introduced through the fan inlet 111, the air is concentrated to push the lower wing 112 b while passing through a small flow path. This is because a larger pressure difference is generated in the wing 112b as compared with the case where air passes through a relatively large flow path, so that the force for rotating the fan can be increased.

After the air passes the flow path where the distance "a" is formed, a large flow path is secured while passing through the "b", so that a large foreign material or the like can be prevented from being caught between the fan housing 113 and the wing 112b. .

In summary, in the housing 113, the front portion of the housing 113 provided on one side of the fan inlet portion 111 forms a smaller flow path than the rear portion. Of course, air is moved from the front part of the housing 113 toward the rear part at this time.

The fan guide 115 includes an upper guide 115a that covers at least a portion of the upper side of the fan 112, and a lower guide 115b that covers at least a portion of the lower side of the fan 112.

The fan guide 115 guides air flowing outside the wing 112b of the fan 112.

The fan guide 115 is connected to the connection portion 30. The upper guide 115a is connected to the upper portion of the connecting portion 30, and the lower guide 115b is connected to the lower portion of the connecting portion 30. Of course, the fan guide 115 may be integrally formed with the connection part 30.

The fan guide 115 may be rotated about the fan rotation shaft 118. In the process of using the cleaner, the height of the cleaner handle (not shown) that the user grips and manipulates may be formed differently according to the height of the user.

At this time, the fan guide 115 may be rotated in a clockwise or counterclockwise direction so that the user can easily manipulate the nozzle of the cleaner. In this process, the connecting portion 30 may be moved upward or downward.

The fan housing 113 is provided with an upper locking jaw 113a to interfere with the upper guide 115a and a lower locking jaw 113b to interfere with the lower guide 115b.

In the process that the fan guide 115 is rotated in the clockwise direction, the end of the lower guide 115b may be caught by the lower locking jaw 113b. Then, the fan guide 115 can no longer be rotated.

In addition, while the fan guide 115 is rotated in the counterclockwise direction, the end of the upper guide 115a may be caught by the upper locking jaw 113a. Then, the fan guide 115 can no longer be rotated.

That is, the locking step (113a, 113b) can be seen to function to set the rotational limit of the fan guide 115.

Meanwhile, the first distance g1 formed between the wing portion 112b and the lower guide 115b and the second distance g2 formed between the wing portion 112b and the upper guide 115a have different sizes. Is formed.

Here, the distances g1 and g2 mean distances formed between the end of the wing 112b and the inner circumferential surface of the fan guide 115.

In detail, the first distance g1 is greater than the second distance g2.

As described above, the air introduced through the fan inlet 111 is moved toward the bottom of the fan 112. In addition, air may move between the wing portion 112b and the lower guide 115b and move toward the connection portion 30.

At this time, the foreign matter is contained in the air, the foreign material should be able to be easily moved to the connecting portion 30 side without being caught on the wing portion (112b) or the lower guide (115b) side. In particular, when a bulky foreign material is sucked through the nozzle, the possibility that the foreign material is caught by the fan 112 is increased.

In order to prevent this, by increasing the distance (g1) between the wing 112b and the lower guide 115b to secure a large flow path. Here, the flow path formed by g1 may be referred to as a "first flow path".

On the other hand, at least some of the air may be guided by the rotating fan 112, and may not move to the inlet part 30, but may pass between the wing part 112b and the upper guide 115a. Thereafter, air may escape to the front of the wing 112b.

At this time, the air flowing out in front of the wing 112b interferes with the movement of air introduced through the fan inlet 111. Therefore, it is necessary to minimize the amount of air flowing out in front of the wing portion (112b).

To this end, the flow path may be reduced by reducing the distance g2 between the wing 112b and the upper guide 115a.

In summary, the g1 is secured larger than g2 so that the lower flow path of the fan 112 is made larger than the upper flow path of the fan 112.

In this case, by smoothly flowing the air flowing into the lower side of the fan 112, foreign matters can be minimized to catch the wing 112b or the lower guide 115b of the fan.

In addition, it is possible to minimize the flow of air flowing into the nozzle by minimizing the flow of air exiting from the upper side of the fan 112 to the front.

Meanwhile, in the above embodiment, the fan guide 115 has been described with reference numerals separately from the fan housing 113. However, the fan guide 115 is also disposed to surround the fan 112 to guide the air, and may be viewed as an element of the fan housing 113.

Therefore, according to the above description, it can be seen that the lower passage of the fan housing is formed larger than the upper passage.

6 is a cross-sectional view showing air flow in the fan assembly according to the present embodiment.

Referring to FIG. 6, the air introduced through the fan inlet 111 may be moved backward through the bottom of the fan 112 and may be moved into the cleaner body through the connection part 30.

At this time, the first flow path formed between the lower wing 112b and the lower guide 115b of the fan 112 is large, and foreign matter contained in the air is the wing 112b or the lower guide ( 115b) can be minimized.

On the other hand, a part of the air introduced through the fan inlet 111 is guided by the fan 112, passing through the upper side of the upper blade portion 112b of the fan 112, of the fan 112 You can exit forward.

However, the second flow path formed between the upper wing portion 112b and the upper guide 115a of the fan 112 is smaller than the first flow path, and the fan 112 is formed through the second flow path. It will be possible to minimize the escape to the front of the.

As a result, there is an effect that the air introduced through the fan inlet 111 can be minimized by the air exiting the front of the fan 112.

1 is a perspective view showing a suction nozzle of a vacuum cleaner according to the present embodiment.

2 is a perspective view showing a suction nozzle in a state where the upper cover is removed according to the present embodiment.

Figure 3 is a bottom perspective view showing the bottom of the suction nozzle according to the embodiment.

4 is a perspective view showing the configuration of a fan assembly according to the present embodiment.

5 is a cross-sectional view taken along the line II ′ of FIG. 4.

6 is a cross-sectional view showing air flow in the fan assembly according to the present embodiment.

Claims (10)

A nozzle body in which an air suction unit is formed; A fan assembly provided to the nozzle body and rotatably provided by air sucked through the air suction unit; And In the process of rotating the fan assembly, an agitator is included to separate the dust from the surface to be cleaned, The fan assembly, A fan rotatably provided; And A fan guide rotatably provided on the outside of the fan to guide movement of air; And A fan housing is accommodated therein and includes a fan housing including a plurality of locking jaws for limiting rotation of the fan guide. And a first distance formed between one side of the fan and the fan guide is greater than a second distance formed between the other side of the fan and the fan guide. The method of claim 1, In the fan, A fan center forming a center of rotation of the fan; And Includes a wing extending outward from the fan center, The first distance and the second distance is a nozzle of the vacuum cleaner, characterized in that the distance from the end of the wing portion to the fan guide. The method of claim 1, Under the fan assembly, And a fan inlet for allowing air to flow into the fan assembly. The method of claim 3, wherein In the fan guide, A lower guide to guide the lower side of the fan; And The nozzle of the vacuum cleaner includes an upper guide for guiding the upper side of the fan. The method of claim 4, wherein And the first distance is a distance between the lower guide and the fan, and the second distance is a distance between the upper guide and the fan. The method of claim 3, wherein The fan inlet is a nozzle of the vacuum cleaner is formed in the tangential direction of the fan. The method of claim 4, wherein In the plurality of locking jaw, A lower locking jaw interfering with the lower guide; And The nozzle of the vacuum cleaner includes an upper locking step that interferes with the upper guide. The method of claim 3, wherein It further includes a connection for allowing the air introduced through the fan inlet flows into the cleaner body, The nozzle of the vacuum cleaner is formed integrally with the fan guide. delete delete

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