TURBINE BRUSH UNIT AND VACUUM CLEANER HAVING THE SAME
A turbine brush unit and a vacuum cleaner having the same are provided. The turbine brush unit may include a turbine brush case, a brush member mounted in the turbine brush case, and a turbine fan unit having a plurality of wings and rotating the brush member. Each of the plurality of the wings may have a curvature point, a primary collision surface with which a primary inlet wind drawn through the inlet portion of the turbine fan unit collides and a secondary collision surface with which a secondary inlet wind collides. The primary and secondary inlet winds apply a force in the rotation direction of the turbine fan unit.
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This application claims the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2009-0063783, filed on Jul. 14, 2009, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.
BACKGROUND1. Field
The following description relates to a vacuum cleaner, and more particularly, to a turbine brush unit for rotating a brush and a vacuum cleaner having the same.
2. Description of the Related Art
A vacuum cleaner, in general, may include a brush member that comes in contact with a surface to be cleaned and cleans dust on the surface to be cleaned. The brush member may scratch or bump the surface to be cleaned by a rotation force while moving along the surface to be cleaned, so that the dust on the surface to be cleaned is separated from the surface to be cleaned. The dust separated from the surface to be cleaned by the brush member is drawn into a main body by a suction force generated from the main body.
The brush member may be configured to be rotated by a drive motor or to be rotated by air drawn through a suction portion. Also, the brush member may generally be configured to be rotated by inlet wind for the purpose of simplifying the configuration and saving cost.
As shown in
The turbine fan unit 110 includes an inlet duct 103, an outlet duct 104 and a fan member 110a disposed between the inlet and outlet ducts 103 and 104. The turbine fan unit 110 is configured so that rotative power is provided to the brush member 102 by a belt (not shown).
As shown in
However, in the related art vacuum cleaner, the primary inlet air a1 may not collide with the wings 112 but form secondary reverse-current air a2 in the region of a fan member mounting portion P, in which the inlet and outlet ducts 103 and 104 are formed. Therefore, the secondary reverse-current air a2 is drawn into the fan member 110a.
As shown in
In one general aspect, there is provided a turbine brush unit for a vacuum cleaner including a turbine brush case, a brush member mounted in the turbine brush case, and a turbine fan unit having a plurality of wings and rotating the brush member. Each of the plurality of the wings has a curvature point, a primary collision surface with which a primary inlet wind drawn through the inlet portion of the turbine fan unit collides and a secondary collision surface with which a secondary inlet wind collides, and the primary and secondary inlet winds apply a force in a rotation direction of the turbine fan unit.
The angle at which the primary inlet wind collides with each of the plurality of wings may be substantially 90 degrees or less.
Each of the plurality of wings may have an included angle of substantially 100 degrees or less, which is an angle made by two lines passing between the curvature point and ends of the wing.
Each of the plurality of wings may be formed in a U shape.
Each of the plurality of wings may be formed in a V shape.
In another aspect, there is provided a vacuum cleaner including a main body and a turbine brush unit, the turbine brush unit including a turbine brush case, a brush member mounted in the turbine brush case, and a turbine fan unit having a plurality of wings and rotating the brush member. Each of the plurality of the wings has a curvature point, a primary collision surface with which a primary inlet wind drawn through the inlet portion of the turbine fan unit collides and a secondary collision surface with which a secondary inlet wind collides, and the primary and secondary inlet winds apply a force in a rotation direction of the turbine fan unit.
The primary collision surface and the secondary collision surface may be positioned at an angle relative to one another.
The angle may be smaller than 100 degrees.
The angle may be smaller than 90 degrees.
An angle may be formed by two lines which pass through the curvature point which is positioned on respective wings at a center point between the primary and secondary collision surfaces, and the angle is less than 100 degrees.
The angle may be less than 90 degrees.
In still another aspect, there is provided a turbine brush unit of a vacuum cleaner, the turbine brush unit including a turbine brush case, a brush member mounted in the turbine brush case, and a turbine fan unit having a plurality of wings and rotating the brush member. Each of the plurality of the wings includes a primary collision surface and a secondary collision surface angled relative to the first collision surface, and a primary inlet wind drawn through the inlet portion of the turbine fan unit collides the primary collision surface and a secondary inlet wind collides with the secondary collision surface, and the primary and secondary inlet winds apply a force in a rotation direction of the turbine fan unit.
Other features and aspects will be apparent from the follow detailed description, the drawings, and the claims.
Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals will be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.
DETAILED DESCRIPTIONThe following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. Accordingly, various changes, modifications, and equivalents of the systems, apparatuses, and/or methods described herein will be suggested to those of ordinary skill in the art. The progression of processing steps and/or operations described is an example; however, the sequence of and/or operations is not limited to that set forth herein and may be changed as is known in the art, with the exception of steps and/or operations necessarily occurring in a certain order. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.
Referring to
Referring to the example in
As shown in
Due to the first included angle θ1 made between the primary and secondary operating portions 122a and 122b, primary and secondary inlet winds A1 and A2, drawn into the interior of the first fan member 120a from a circumferential region of the first rotating plate 121, may collide with a primary or secondary collision surface 120a′ or 120b′ of each of the first wings 122, positioned opposite to the rotation direction of the rotating plate 121. The first included angle θ1 may be an angle smaller than 100 degrees.
As shown in the examples of
That is, the primary and secondary inlet winds A1 and A2 drawn into the first rotating plate 121 may collide with the surfaces (the primary and secondary collision surfaces 120a′ and 120b′ in
Due to the additional collision of the secondary inlet wind A2, a secondary operating force B that rotates the first fan member 120a in the rotation direction D may be additionally formed, and thus, the rotation force of the first fan member 120 may be increased. Since the secondary inlet wind A2 may avoid colliding with the surface (the opposite surface of the primary or secondary collision surface 120a′ or 120b′) of each of the wings 122 in the rotation direction D, the friction with the flow of air, caused by the first wings 122, may be minimized, and thus, the loss of pressure may be reduced.
In
For vacuum cleaners with output powers of 1200W and 2000W, the revolution per minute (RPM) of the first fan member 120a having the V-shaped first wings 122 of
In the vacuum cleaner with the output power of 1200 W, the RPM of the fan member 110a having the wings 112 of the related art showed 3800 RPM in load and 5200 RPM in unload. However, the RPM of the first fan member 120a having the V-shaped first wings 122 arranged similar to the examples shown in
In the vacuum cleaner with the output power of 2000 W, the RPM of the fan member 110a having the wings 112 of the related art showed 3900 RPM in load and 5200 RPM in unload. However, the RPM of the first fan member 120a having the V-shaped first wings 122 arranged similar to the examples shown in
As shown in
A primary inlet wind A1 drawn into the interior of the second fan member 130a may collide with a primary collision surface 130a′ of each of the second wings 132, and a secondary inlet wind A2 may then collide with a secondary collision surface 130b′ of each of the second wings 132.
The primary inlet wind A1 drawn from an inlet port 103a may collide with the primary collision surface 130a′ of the primary operating portion 132a, thereby rotating the second fan member 130a. The secondary inlet wind A2 drawn into a fan member mounting portion P along the circumference of the second fan member 130a may collide with the secondary collision surface 130b′ of the secondary operating portion 132b, thereby generating a secondary operating force B.
For a vacuum cleaner with an output power of 2000 W, the RPM of the second fan member 130a having the U-shaped second wings 132 of
In the vacuum cleaner with the output power of 2000 W, the RPM of the fan member 110a having the wings 112 of the related art showed 3700 RPM in load and 5000 RPM in unload.
However, the RPM of the second fan member 130a having the U-shaped second wings 132 arranged as shown in the examples of
As described above, inlet wind sucked into the interior of a fan member from the outer circumference of the fan member may collide with a plurality of wings so that an operating force is applied to the rotation direction of the fan member, and may thereby increase the rotation force of the fan member.
Further, air that collides with the fan member collides with the wings so that the generation of a frictional force with respect to the rotation direction of the fan member may be avoided. Accordingly, the interruption of the flow of air may be decreased, and thus, the loss of pressure may be reduced.
Furthermore, the rotation force of the fan member may be increased, and thus, the rotation force of a brush member may be increased. In this case, cleaning efficiency is enhanced.
A number of examples have been described above. Nevertheless, it will be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques are performed in a different order and/or if components in a described system, architecture, device, or circuit are combined in a different manner and/or replaced or supplemented by other components or their equivalents. Accordingly, other implementations are within the scope of the following claims.
Claims
1. A turbine brush unit for a vacuum cleaner, the turbine brush unit comprising:
- a turbine brush case;
- a brush member mounted in the turbine brush case; and
- a turbine fan unit comprising a plurality of wings and configured to rotate the brush member, each of the plurality of the wings comprising: a curvature point; a primary collision surface with which a primary inlet wind drawn through the inlet portion of the turbine fan unit collides; and a secondary collision surface with which a secondary inlet wind collides, wherein the primary and secondary inlet winds apply a force in a rotation direction of the turbine fan unit.
2. The turbine brush unit for vacuum cleaner of claim 2, wherein the angle at which the primary inlet wind collides with each of the plurality of wings is substantially 90 degrees or less.
3. The turbine brush unit for vacuum cleaner of claim 1, wherein each of the plurality of wings comprises an included angle of substantially 100 degrees or less, which is an angle made by two lines passing between the curvature point and ends of the wing.
4. The turbine brush unit for vacuum cleaner of claim 1, wherein each of the plurality of wings are formed in a U shape.
5. The turbine brush unit for vacuum cleaner of claim 1, wherein each of the plurality of wings are formed in a V shape.
6. A vacuum cleaner, comprising:
- a main body; and
- a turbine brush unit, the turbine brush unit comprising: a turbine brush case; a brush member mounted in the turbine brush case; and a turbine fan unit comprising a plurality of wings and configured to rotate the brush member, each of the plurality of the wings comprising: a curvature point; a primary collision surface with which a primary inlet wind drawn through the inlet portion of the turbine fan unit collides; and a secondary collision surface with which a secondary inlet wind collides, wherein the primary and secondary inlet winds apply a force in a rotation direction of the turbine fan unit.
7. The vacuum cleaner of claim 6, wherein the primary collision surface and the secondary collision surface are positioned at an angle relative to one another.
8. The vacuum cleaner of claim 7, wherein the angle is smaller than 100 degrees.
9. The vacuum cleaner of claim 7, wherein the angle is smaller than 90 degrees.
10. The vacuum cleaner of claim 6, wherein:
- an angle is formed by two lines which pass through the curvature point which is positioned on respective wings at a center point between the primary and secondary collision surfaces; and
- the angle is less than 100 degrees.
11. The vacuum cleaner of claim 10, wherein the angle is less than 90 degrees.
Type: Application
Filed: Apr 29, 2010
Publication Date: Jan 20, 2011
Applicant: SAMSUNG GWANGJU ELECTRONICS CO., LTD. (Gwangju-city)
Inventor: Jang-keun OH (Gwangju-city)
Application Number: 12/770,660
International Classification: A47L 5/10 (20060101);