EP1721557A1 - Motor assembly and vacuum cleaner having the same - Google Patents
Motor assembly and vacuum cleaner having the same Download PDFInfo
- Publication number
- EP1721557A1 EP1721557A1 EP06290706A EP06290706A EP1721557A1 EP 1721557 A1 EP1721557 A1 EP 1721557A1 EP 06290706 A EP06290706 A EP 06290706A EP 06290706 A EP06290706 A EP 06290706A EP 1721557 A1 EP1721557 A1 EP 1721557A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- casing
- motor casing
- air
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/22—Mountings for motor fan assemblies
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
Definitions
- the present invention relates to a vacuum cleaner, and more particularly, to a motor assembly configured to reduce noise generated in a motor and a vacuum cleaner having the same.
- a vacuum cleaner draws in dust using a suction force generated by a motor and collects the dust in a dust collecting chamber.
- the vacuum cleaner employs a high output motor having a high number of RPMs. However, such a high output motor causes a large volume of noise when it is driven.
- Korean Patent Publication No. 1997-32650 describes a motor casing including a noise absorbing member and a noise blocking member.
- the noise blocking member encloses the noise absorbing member and has diffusion perforations formed on a surface thereof.
- Japanese Patent Publication No. H01-268524 describes a motor casing including a first penetrating hole formed on a side surface, a second penetrating hole formed on a rear surface, and a noise absorbing member disposed at the first and the second penetrating holes.
- both disclosures can reduce a blade passing frequency (BPF) and the entire noise level, they do not effectively reduce a low frequency band noise.
- a first aspect of the present invention is to provide a motor assembly having a simplified configuration and a vacuum cleaner having the same.
- the present invention provides a motor assembly that includes: a motor including at least a motor body and a motor blade portion; at least one inner motor casing configured to enclose at least a part of the motor; and at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing, wherein air in the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- a vacuum cleaner that includes: a cleaner body including at least a dust collecting chamber and a motor chamber; a brush assembly configured to be connected to the dust collecting chamber; a motor disposed at the motor chamber and including at least a motor body and a motor blade portion; at least one inner motor casing configured to enclose at least a part of the motor; and at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing, wherein air in the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- a motor assembly which includes: a motor; at least one inner motor casing configured to enclose at least a part of the motor; at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing; and means for changing a direction of air flow between the at least one motor casing and the at least one outer motor casing.
- FIG. 1 is a view schematically illustrating a cleaner body in which a motor assembly according to a non-limiting embodiment of the present invention may be mounted;
- FIG. 2 is a view illustrating the motor assembly of FIG. 1, in which a contour line of an outer motor casing is expressed by a dashed line such that only an inner motor casing is shown;
- FIG. 3 is an exploded perspective view illustrating the motor assembly of FIG. 2;
- FIG. 4 is a graph illustrating a noise reduction effect achieved by the motor assembly according to a non-limiting embodiment of the present invention.
- FIG. 1 is a view illustrating a cleaner body in which a motor assembly according to a non-limiting embodiment of the present invention is mounted.
- the cleaner body 10 may include a dust collecting chamber S 1 and a motor chamber S2.
- the dust collecting chamber S1 may be a space that may be partitioned from the motor chamber S2 by a partition 10a and may be formed in a front portion of the cleaner body 10.
- the dust collecting chamber S1 may have a dust collector to separate and collect dust.
- a dust bag 11 may be provided as the dust collector.
- a single or multi-cyclone dust collecting apparatus (capable of being used repeatedly) may be provided in the dust collecting chamber S 1.
- a suction pipe 12 may be disposed at an upper portion of the dust collecting chamber S 1 and may protrude to the outside of the cleaner body 10 as well as to the inside of the cleaner body 10. Dust may be drawn in through the suction pipe 12.
- the suction pipe 12 may be connected to a flexible hose 14 outside the cleaner body 10 and to the dust bag 11 inside the cleaner body 10.
- the flexible hose 14 may be connected to a brush assembly (not shown) through an extension pipe (not shown). The brush assembly may draw in dust from a cleaning surface therethrough.
- the dust drawn in through the brush assembly (not shown), the extension pipe (not shown), the flexible hose 14, and the suction pipe 12 may be collected in the dust bag 11, whereas the air may escape from the dust bag 11 in the direction of arrow and may flow into the motor chamber S2 through a filter 40.
- the motor chamber S2 may include a space that is partitioned from the dust collecting chamber S 1 by partition 10a and may be formed in a rear portion of the cleaner body 10.
- the motor chamber S2 may include a first motor chamber S21 and a second motor chamber S22.
- the first motor chamber S21 may be enclosed by an upper wall 10b and a side wall 10c and may be located in front of the second motor chamber S2.
- a motor assembly 19 may be disposed in the first motor chamber S21.
- a motor 20 may use a high-output motor capable of generating a high number of revolutions per minute (RPMs). The high output motor may generate a large volume of noise when it is driven.
- the motor assembly 19 may be provided in the first motor chamber S21.
- the second motor chamber S22 may be formed in the rear portion of the motor chamber S2 by the side wall 10c.
- a discharge pipe 16 may be disposed at a rear upper portion of the motor chamber S2 to discharge the air to the outside therethrough.
- a discharge filter 30 may be disposed in an outlet of the discharge pipe 16 to filter dust included in the air.
- the motor assembly 19 may include the motor 20 which may include a motor body 20a and a motor blade portion 20b.
- a motor casing 100 may also be provided to enclose the motor 20 and may include an inner motor casing 110 and an outer motor casing 120.
- the configuration of the motor 20 may be similar to those known to those of skill in the art.
- the inner motor casing 110 may enclose the motor body 20a and may be spaced away from the motor body 20a by a predetermined distance such that a first air passage P1 (see FIG. 1) may be formed between the motor 20 and the inner motor casing 110.
- a plurality of first air passing holes 110a may be formed along a circumference of the inner motor casing 110.
- the inner motor casing 110 may include a first securing protrusion 111 formed at a circular edge of the inner motor casing 110 and may include a first securing hole 110b through which a screw is inserted.
- the outer motor casing 120 may include a front casing 121 and a rear casing 122, which may be separable from each other.
- the front casing 121 may enclose the motor blade portion 20b and may have a second securing protrusion 121b formed at a circular edge of the front casing 121 to be connected to the rear casing 122.
- the securing protrusion 121 b may include a second securing hole 121 bb corresponding to the first securing hole 110b of the first securing protrusion 111.
- the rear casing 122 may enclose the inner motor casing 110, which may be spaced from the inner motor casing 110 by a predetermined distance such that a second air passage P2 (see FIG. 1) may be formed between the inner motor casing 110 and the rear casing 122.
- the rear casing 122 may have a plurality of second air passing holes 122a defined on a surface (e.g., a rear surface) of the rear casing 122 in a radial direction.
- the second air passing holes may be omitted from the center of the rear casing 122.
- the arrangement of the second air passing holes 122a may extend to the center of the rear casing 122.
- the rear casing 122 may have a third securing protrusion 122b formed at a circular edge thereof to be connected with the front casing 121.
- the third securing protrusion 122b may include a third securing hole 122bb corresponding to the first and the second securing holes 110b, 121 bb of the first and the second securing protrusions 111, 121b.
- the inner motor casing 110 may enclose only the motor body 20a in this non-limiting embodiment, it may also be designed to enclose the motor blade portion 20b as well as the motor body 20a.
- the outer motor casing 120 may be designed to enclose the entire motor 20 or to enclose only the motor body 20a. Also, variations of the air channel are possible. For example, two or more outer motor casings 120 may enclose the inner motor casing to reduce noise.
- the air when the air escapes from the motor 20, it may be deflected by the first air passage P1, may pass through the first air passing holes 110a, may again be deflected by the second air passage P2, and then may pass through the second air passing holes 122a.
- the air may change its direction when it flows from the first air passage P1 to the second air passage P2.
- the air may change its direction by substantially 90° to 180° when it flows into the second air passage P2 from the first air passage P1.
- FIG. 4 is a graph illustrating a noise reduction effect achieved by the motor assembly.
- noise is measured as 73.5dBA if the motor assembly 19 is provided, whereas noise is measured as 78.7dBA if there is no motor assembly 19.
- the noise is reduced by as much as 5.2dBA.
- the amount of noise reduction is large in a low frequency band (0 ⁇ 2000Hz).
- a suction force is generated when the motor 20 is driven, and dust is drawn in through the brush assembly (not shown), the extension pipe (not shown), the flexible hose 14, and the suction pipe 12 by the suction force, and collected in the dust bag 11.
- the motor assembly 19 and the vacuum cleaner having the same have the following advantages.
- the motor assembly 19 may include the inner motor casing 110 having the first air passing holes 110a and the outer motor casing 120 having the second air passing holes 122a, and may not require an extra noise-absorbing member, the motor assembly 19 has a simplified configuration and its manufacturing costs decrease.
- the air changes its flow velocity while being deflected by the first air passage P1, passing through the first air passing holes 110a, being again deflected by the second air passage P2, and then passing through the second air passing holes 122a. Also, since the air changes its direction while moving from the first air passage P1 to the second air passage P2, a noise is reduced. Especially, a low frequency band noise is effectively reduced. Accordingly, a user can clean without much noise.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- This application claims the benefit of priority under 35 U.S.C. § 119 from
Korean Patent Application No. 2005-40203, filed May 13, 2005 U.S. Patent Application Serial No. 10/851,243, filed May 24, 2004 U.S. Patent Application Serial No. 11/206,905, filed August 19, 2005 - The present invention relates to a vacuum cleaner, and more particularly, to a motor assembly configured to reduce noise generated in a motor and a vacuum cleaner having the same.
- A vacuum cleaner draws in dust using a suction force generated by a motor and collects the dust in a dust collecting chamber. The vacuum cleaner employs a high output motor having a high number of RPMs. However, such a high output motor causes a large volume of noise when it is driven.
-
Korean Patent Publication No. 1997-32650 Japanese Patent Publication No. H01-268524 - However, since the disclosures of the
Korean Patent Publication No. 1997-32650 Japanese Patent Publication No. H01-268524 - Also, although both disclosures can reduce a blade passing frequency (BPF) and the entire noise level, they do not effectively reduce a low frequency band noise.
- The present invention has been developed in order to solve the above problems in the related art. A first aspect of the present invention is to provide a motor assembly having a simplified configuration and a vacuum cleaner having the same.
- To this end, the present invention provides a motor assembly that includes: a motor including at least a motor body and a motor blade portion; at least one inner motor casing configured to enclose at least a part of the motor; and at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing, wherein air in the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- Another aspect of the invention provides a vacuum cleaner that includes: a cleaner body including at least a dust collecting chamber and a motor chamber; a brush assembly configured to be connected to the dust collecting chamber; a motor disposed at the motor chamber and including at least a motor body and a motor blade portion; at least one inner motor casing configured to enclose at least a part of the motor; and at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing, wherein air in the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- Another aspect provides a motor assembly, which includes: a motor; at least one inner motor casing configured to enclose at least a part of the motor; at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing; and means for changing a direction of air flow between the at least one motor casing and the at least one outer motor casing.
- These and other aspects of the present invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
- FIG. 1 is a view schematically illustrating a cleaner body in which a motor assembly according to a non-limiting embodiment of the present invention may be mounted;
- FIG. 2 is a view illustrating the motor assembly of FIG. 1, in which a contour line of an outer motor casing is expressed by a dashed line such that only an inner motor casing is shown;
- FIG. 3 is an exploded perspective view illustrating the motor assembly of FIG. 2; and
- FIG. 4 is a graph illustrating a noise reduction effect achieved by the motor assembly according to a non-limiting embodiment of the present invention.
- Hereinafter, a motor assembly and a vacuum cleaner having the same according to a non-limiting embodiment of the present invention will now be described with reference to the accompanying drawings. For reference, arrows in the drawings indicate an air flow direction.
- FIG. 1 is a view illustrating a cleaner body in which a motor assembly according to a non-limiting embodiment of the present invention is mounted. Referring to FIG. 1, the
cleaner body 10 may include a dustcollecting chamber S 1 and a motor chamber S2. - The dust collecting chamber S1 may be a space that may be partitioned from the motor chamber S2 by a
partition 10a and may be formed in a front portion of thecleaner body 10. The dust collecting chamber S1 may have a dust collector to separate and collect dust. In this embodiment, adust bag 11 may be provided as the dust collector. Instead of thedust bag 11, a single or multi-cyclone dust collecting apparatus (capable of being used repeatedly) may be provided in the dustcollecting chamber S 1. - A
suction pipe 12 may be disposed at an upper portion of the dustcollecting chamber S 1 and may protrude to the outside of thecleaner body 10 as well as to the inside of thecleaner body 10. Dust may be drawn in through thesuction pipe 12. Thesuction pipe 12 may be connected to aflexible hose 14 outside thecleaner body 10 and to thedust bag 11 inside thecleaner body 10. Theflexible hose 14 may be connected to a brush assembly (not shown) through an extension pipe (not shown). The brush assembly may draw in dust from a cleaning surface therethrough. - According to the above-described configuration, the dust drawn in through the brush assembly (not shown), the extension pipe (not shown), the
flexible hose 14, and thesuction pipe 12 may be collected in thedust bag 11, whereas the air may escape from thedust bag 11 in the direction of arrow and may flow into the motor chamber S2 through afilter 40. - The motor chamber S2 may include a space that is partitioned from the dust
collecting chamber S 1 bypartition 10a and may be formed in a rear portion of thecleaner body 10. The motor chamber S2 may include a first motor chamber S21 and a second motor chamber S22. - The first motor chamber S21 may be enclosed by an
upper wall 10b and aside wall 10c and may be located in front of the second motor chamber S2. Amotor assembly 19 may be disposed in the first motor chamber S21. Amotor 20 may use a high-output motor capable of generating a high number of revolutions per minute (RPMs). The high output motor may generate a large volume of noise when it is driven. In order to reduce the noise, themotor assembly 19 may be provided in the first motor chamber S21. The second motor chamber S22 may be formed in the rear portion of the motor chamber S2 by theside wall 10c. - A
discharge pipe 16 may be disposed at a rear upper portion of the motor chamber S2 to discharge the air to the outside therethrough. Adischarge filter 30 may be disposed in an outlet of thedischarge pipe 16 to filter dust included in the air. - Referring to FIGS. 2 and 3, the
motor assembly 19 according to an embodiment of the present invention may include themotor 20 which may include amotor body 20a and amotor blade portion 20b. Amotor casing 100 may also be provided to enclose themotor 20 and may include aninner motor casing 110 and anouter motor casing 120. The configuration of themotor 20 may be similar to those known to those of skill in the art. - The
inner motor casing 110 may enclose themotor body 20a and may be spaced away from themotor body 20a by a predetermined distance such that a first air passage P1 (see FIG. 1) may be formed between themotor 20 and theinner motor casing 110. A plurality of firstair passing holes 110a may be formed along a circumference of theinner motor casing 110. Theinner motor casing 110 may include afirst securing protrusion 111 formed at a circular edge of theinner motor casing 110 and may include afirst securing hole 110b through which a screw is inserted. Theouter motor casing 120 may include afront casing 121 and arear casing 122, which may be separable from each other. - The
front casing 121 may enclose themotor blade portion 20b and may have a secondsecuring protrusion 121b formed at a circular edge of thefront casing 121 to be connected to therear casing 122. Thesecuring protrusion 121 b may include asecond securing hole 121 bb corresponding to thefirst securing hole 110b of thefirst securing protrusion 111. - The
rear casing 122 may enclose theinner motor casing 110, which may be spaced from theinner motor casing 110 by a predetermined distance such that a second air passage P2 (see FIG. 1) may be formed between theinner motor casing 110 and therear casing 122. Therear casing 122 may have a plurality of secondair passing holes 122a defined on a surface (e.g., a rear surface) of therear casing 122 in a radial direction. The second air passing holes may be omitted from the center of therear casing 122. Of course, the arrangement of the secondair passing holes 122a may extend to the center of therear casing 122. - The
rear casing 122 may have athird securing protrusion 122b formed at a circular edge thereof to be connected with thefront casing 121. Thethird securing protrusion 122b may include a third securing hole 122bb corresponding to the first and the second securingholes protrusions - Although the
inner motor casing 110 may enclose only themotor body 20a in this non-limiting embodiment, it may also be designed to enclose themotor blade portion 20b as well as themotor body 20a. Also, theouter motor casing 120 may be designed to enclose theentire motor 20 or to enclose only themotor body 20a. Also, variations of the air channel are possible. For example, two or moreouter motor casings 120 may enclose the inner motor casing to reduce noise. - Referring to FIG. 1, when the air escapes from the
motor 20, it may be deflected by the first air passage P1, may pass through the firstair passing holes 110a, may again be deflected by the second air passage P2, and then may pass through the secondair passing holes 122a. At this time, the air may change its direction when it flows from the first air passage P1 to the second air passage P2. For example, the air may change its direction by substantially 90° to 180° when it flows into the second air passage P2 from the first air passage P1. - When the air is deflected by the first air passage P1, passes through the first
air passing holes 110a, is again deflected by the second air passage P2, and then passes through the secondair passing holes 122a, its flow velocity changes. Also, when the air changes its direction as it flows from the first air passage P1 to the second air passage P2, noise is reduced. - FIG. 4 is a graph illustrating a noise reduction effect achieved by the motor assembly. Referring to FIG. 4, noise is measured as 73.5dBA if the
motor assembly 19 is provided, whereas noise is measured as 78.7dBA if there is nomotor assembly 19. In other words, the noise is reduced by as much as 5.2dBA. The amount of noise reduction is large in a low frequency band (0~2000Hz). - Hereinafter, the operation of the vacuum cleaner employing the
motor assembly 19 will now be described. Referring to FIG. 1, a suction force is generated when themotor 20 is driven, and dust is drawn in through the brush assembly (not shown), the extension pipe (not shown), theflexible hose 14, and thesuction pipe 12 by the suction force, and collected in thedust bag 11. - Cleaned air escapes from the
dust bag 11 and flows into themotor 20 disposed in the first motor chamber S21 after passing through thefilter 40. When the air escapes from themotor 20, it is deflected by the first air passage P1 by 90°. Then, the air passes through the firstair passing holes 110a, is again deflected by the second air passage P2, and then passes through the secondair passing holes 122a. After that, the air may be discharged from thecleaner body 10 through the second motor chamber S22, thedischarge pipe 16, and thedischarge filter 30. - According to the present invention as described above, the
motor assembly 19 and the vacuum cleaner having the same have the following advantages. - First, since the
motor assembly 19 may include theinner motor casing 110 having the firstair passing holes 110a and theouter motor casing 120 having the secondair passing holes 122a, and may not require an extra noise-absorbing member, themotor assembly 19 has a simplified configuration and its manufacturing costs decrease. - Second, the air changes its flow velocity while being deflected by the first air passage P1, passing through the first
air passing holes 110a, being again deflected by the second air passage P2, and then passing through the secondair passing holes 122a. Also, since the air changes its direction while moving from the first air passage P1 to the second air passage P2, a noise is reduced. Especially, a low frequency band noise is effectively reduced. Accordingly, a user can clean without much noise. - The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of apparatuses. Also, the description of the embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (18)
- A motor assembly, comprising:a motor including at least a motor body and a motor blade portion;at least one inner motor casing configured to enclose at least a part of the motor; andat least one outer motor casing configured to enclose at least a part of the at least one inner motor casing,wherein air at the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- The motor assembly as claimed in claim 1, wherein the air is caused to change direction by substantially 90° to substantially 180° when flowing from a first air passage formed between the motor and the at least one inner motor casing to a second air passage formed between the at least one inner motor casing and the at least one outer motor casing.
- The motor assembly as claimed in any of the claims 1 and 2, wherein the at least one inner motor casing is configured to enclose the motor body of the motor, and the at least one outer motor casing is configured to enclose the motor body and the motor blade portion.
- The motor assembly as claimed in any of the claims 1 to 3, wherein the at least one inner motor casing and the at least one outer motor casing each include a plurality of air passing holes to allow air escaping from the motor to pass therethrough.
- The motor assembly as claimed in claim 4, wherein the plurality of air passing holes include at least one first air passing hole defined at a circumference of the at least one inner motor casing and at least one second air passing hole defined at the at least one outer motor casing.
- The motor assembly as claimed in claim 5, wherein at least one second air passing hole is defined at a rear of the at least one outer motor casing.
- The motor assembly as claimed in any of the claims 5 and 6, wherein the at least one first passing hole is defined around the circumference.
- A vacuum cleaner comprising:a cleaner body including at least a dust collecting chamber and a motor chamber;a brush assembly configured to be connected to the dust collecting chamber;a motor disposed at the motor chamber and including at least a motor body and a motor blade portion;at least one inner motor casing configured to enclose at least a part of the motor; andat least one outer motor casing configured to enclose at least a part of the at least one inner motor casing,wherein air at the motor is caused to change direction when passing along at least one of the at least one inner motor casing and the at least one outer motor casing.
- The vacuum cleaner as claimed in claim 8, wherein the at least one inner motor casing and the at least one outer motor casing each include at least one air passing hole configured to allow air escaping from the motor to pass therethrough.
- The vacuum cleaner as claimed in claim 9, wherein the at least one air passing hole is formed at a rear of the at least one outer motor casing.
- The vacuum cleaner as claimed in any of the claims 8 to 10, wherein the at least one outer motor casing is configured to entirely enclose the at least one inner motor casing.
- A motor assembly, comprising:a motor;at least one inner motor casing configured to enclose at least a part of the motor;at least one outer motor casing configured to enclose at least a part of the at least one inner motor casing; andmeans for changing a direction of air flow between the at least one inner motor casing and the at least one outer motor casing.
- The motor assembly as claimed in claim 12, wherein the means for changing changes the direction of the airflow between substantially 90° and substantially 180°.
- The motor assembly as claimed in claim 13, further comprising at least one air passing hole formed at least one of the at least one inner motor casing and at the at least one outer motor casing.
- The motor assembly as claimed in claim 14, wherein the at least one air passing hole includes a plurality of air passing holes.
- The motor assembly as claimed in claim 15, wherein a portion of the plurality of air passing holes is formed at the at least one inner motor casing.
- The motor assembly as claimed in claim 16, wherein a second portion of the plurality of air passing holes is formed at the at least one outer motor casing.
- The motor assembly as claimed in claim 17, wherein the at least one air passing hole of the second portion is provided at a rear portion of the at least one outer motor casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050040203A KR20060117711A (en) | 2005-05-13 | 2005-05-13 | A motor assembly and a vacuum cleaner having the same |
Publications (1)
Publication Number | Publication Date |
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EP1721557A1 true EP1721557A1 (en) | 2006-11-15 |
Family
ID=36753984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06290706A Withdrawn EP1721557A1 (en) | 2005-05-13 | 2006-05-03 | Motor assembly and vacuum cleaner having the same |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060257269A1 (en) |
EP (1) | EP1721557A1 (en) |
KR (1) | KR20060117711A (en) |
CN (1) | CN1866683A (en) |
AU (1) | AU2006201908B2 (en) |
RU (1) | RU2006117229A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1952742A2 (en) * | 2007-02-05 | 2008-08-06 | Samsung Gwangju Electronics Co., Ltd. | Motor assembly and vacuum cleaner having the same |
EP2436291A4 (en) * | 2009-05-29 | 2015-10-21 | Toshiba Kk | Electric cleaner |
EP3381345A4 (en) * | 2016-02-19 | 2019-04-10 | Samsung Electronics Co., Ltd. | Robot cleaner |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102599851B (en) * | 2011-01-21 | 2017-01-25 | 南京乐金熊猫电器有限公司 | Motor box structure for lowering noise of motor |
EP2870905B1 (en) * | 2013-11-11 | 2019-01-02 | NELA razvojni center d.o.o. Podruznica OTOKI | Vacuum cleaner noise and vibration reduction system |
CN105342525A (en) * | 2015-03-02 | 2016-02-24 | 于长海 | Small household dust collector |
US11478116B2 (en) | 2018-01-15 | 2022-10-25 | Omachron Intellectual Property Inc | Surface cleaning apparatus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01268524A (en) * | 1988-04-20 | 1989-10-26 | Sanyo Electric Co Ltd | Vacuum cleaner |
JPH0716176A (en) * | 1993-06-30 | 1995-01-20 | Hitachi Ltd | Vacuum cleaner |
US5720074A (en) * | 1995-08-31 | 1998-02-24 | Daewoo Electronics Co., Ltd | Vacuum cleaner having a noise reduction system |
US5894629A (en) * | 1996-05-17 | 1999-04-20 | Daewoo Electronics Co., Ltd. | Sound absorbing assembly for a vacuum cleaner |
EP0910980A2 (en) * | 1997-10-27 | 1999-04-28 | Daewoo Electronics Co., Ltd | Low noise vacuum cleaner |
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2005
- 2005-05-13 KR KR1020050040203A patent/KR20060117711A/en not_active Application Discontinuation
-
2006
- 2006-03-29 US US11/391,434 patent/US20060257269A1/en not_active Abandoned
- 2006-05-03 EP EP06290706A patent/EP1721557A1/en not_active Withdrawn
- 2006-05-04 AU AU2006201908A patent/AU2006201908B2/en not_active Ceased
- 2006-05-09 CN CNA200610080158XA patent/CN1866683A/en active Pending
- 2006-05-12 RU RU2006117229/11A patent/RU2006117229A/en unknown
Patent Citations (5)
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JPH01268524A (en) * | 1988-04-20 | 1989-10-26 | Sanyo Electric Co Ltd | Vacuum cleaner |
JPH0716176A (en) * | 1993-06-30 | 1995-01-20 | Hitachi Ltd | Vacuum cleaner |
US5720074A (en) * | 1995-08-31 | 1998-02-24 | Daewoo Electronics Co., Ltd | Vacuum cleaner having a noise reduction system |
US5894629A (en) * | 1996-05-17 | 1999-04-20 | Daewoo Electronics Co., Ltd. | Sound absorbing assembly for a vacuum cleaner |
EP0910980A2 (en) * | 1997-10-27 | 1999-04-28 | Daewoo Electronics Co., Ltd | Low noise vacuum cleaner |
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Title |
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PATENT ABSTRACTS OF JAPAN vol. 014, no. 030 (C - 678) 19 January 1990 (1990-01-19) * |
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1952742A2 (en) * | 2007-02-05 | 2008-08-06 | Samsung Gwangju Electronics Co., Ltd. | Motor assembly and vacuum cleaner having the same |
EP1952742A3 (en) * | 2007-02-05 | 2009-12-23 | Samsung Gwangju Electronics Co., Ltd. | Motor assembly and vacuum cleaner having the same |
EP2436291A4 (en) * | 2009-05-29 | 2015-10-21 | Toshiba Kk | Electric cleaner |
EP3381345A4 (en) * | 2016-02-19 | 2019-04-10 | Samsung Electronics Co., Ltd. | Robot cleaner |
US11452411B2 (en) | 2016-02-19 | 2022-09-27 | Samsung Electronics Co., Ltd. | Robot cleaner |
Also Published As
Publication number | Publication date |
---|---|
US20060257269A1 (en) | 2006-11-16 |
KR20060117711A (en) | 2006-11-17 |
AU2006201908A1 (en) | 2006-11-30 |
CN1866683A (en) | 2006-11-22 |
AU2006201908B2 (en) | 2008-01-03 |
RU2006117229A (en) | 2007-12-10 |
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