EP2077089A2 - Vacuum cleaner - Google Patents
Vacuum cleaner Download PDFInfo
- Publication number
- EP2077089A2 EP2077089A2 EP08160222A EP08160222A EP2077089A2 EP 2077089 A2 EP2077089 A2 EP 2077089A2 EP 08160222 A EP08160222 A EP 08160222A EP 08160222 A EP08160222 A EP 08160222A EP 2077089 A2 EP2077089 A2 EP 2077089A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heatsink
- vacuum cleaner
- filter assembly
- exhaust
- motor
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 35
- 239000000428 dust Substances 0.000 abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- VLLVVZDKBSYMCG-UHFFFAOYSA-N 1,3,5-trichloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=CC=CC=C1Cl VLLVVZDKBSYMCG-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
-
- 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
-
- 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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
Definitions
- the present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having a cooling structure to reduce heat generated by a main printed circuit board (PCB) required for power control and electronic control.
- PCB main printed circuit board
- Vacuum cleaners generally draw in dust-laden air from a surface being cleaned, separate dust from the drawn-in air, collect the separated dust and discharge air from which dust has been separated to the outside of main bodies of vacuum cleaners.
- Such vacuum cleaners include main printed circuit boards (PCBs), which are required for power control and electronic control, but which may generate heat when vacuum cleaners are in use. Such heat may cause the durability of a main PCB to be reduced, so a vacuum cleaner may need to have a cooling structure to cool the main PCB using air flowing inside a main body of the vacuum cleaner.
- PCBs main printed circuit boards
- a portion of a heatsink for reducing heat generated by a main PCB is inserted into a suction motor assembly, and air discharged from a suction motor is in direct contact with the heatsink, so that the heat can be absorbed. If a problem arises when sealing the heatsink into the suction motor assembly, carbon powder or fine dust particles may be discharged from the suction motor to the outside of the suction motor assembly, so materials harmful to the human body may be also discharged externally from the vacuum cleaner.
- a conventional vacuum cleaner has a structure which causes a separate flow path capable of drawing in external air to fluidly communicate with a dust collecting chamber, and which allows a heatsink to be mounted inside the flow path in order to cool the heatsink.
- the suction force of the dust collecting chamber is reduced and the cleaning efficiency of the vacuum cleaner is thus reduced.
- Exemplary embodiments of the present invention overcome the above disadvantages and other disadvantages not described above.
- the present invention provides a vacuum cleaner which is able to prevent carbon powder and fine dust particles from being discharged from a suction motor to the outside of a motor assembly while reducing heat generated by a main printed circuit board (PCB).
- PCB main printed circuit board
- the present invention also provides a vacuum cleaner which is able to prevent a decrease in the suction efficiency of a suction motor for generating a suction force.
- the vacuum cleaner in the following exemplary embodiment of the present disclosure may have a structure generally known in the art, except for employing a main printed circuit board (PCB) cooling structure mounted in the vacuum cleaner. Therefore, the vacuum cleaner may have a substantially similar structure to a general vacuum cleaner.
- PCB printed circuit board
- the vacuum cleaner according to the exemplary embodiment of the present invention includes a main cleaner body 5, a motor assembly 20, an exhaust filter assembly 40 and a main PCB 50.
- the main cleaner body 5 includes a base body 10 and an upper case 30.
- the base body 10 includes a motor housing 11 disposed on the rear portion thereof to house the motor assembly 20, and a pair of wheel mounting units 13 which are disposed on both sides of the base body 10 and into which a pair of wheels (not shown) are mounted in order to move the vacuum cleaner.
- the upper case 30 is connected to the base body 10 to cover an upper portion of the base body 10.
- the upper case 30 has an open lower portion so that the motor assembly 20 may be mounted inside the upper case 30.
- the upper case 30 includes a dust collecting chamber 33 on the front portion thereof.
- the dust collecting chamber 33 includes a dust bag (not shown) to separate dust from drawn-in dust-laden air.
- the upper case 30 includes an exhaust filter insertion hole 35 formed on the rear portion of the dust collecting chamber 33, so that the exhaust filter assembly 40 may be inserted into the exhaust filter insertion hole 35.
- the upper case 30 also includes a pair of exhaust ducts 37 each having an exhaust port 36 on both sides of the dust collecting chamber 33 in order to discharge air discharged from the motor assembly 20 toward the front portion of the main cleaner body 5.
- the motor assembly 20 is mounted in a space formed when the base body 10 is combined with the upper case 30, that is, mounted inside the main cleaner body 5, so as to be disposed on the rear portion of the dust collecting chamber 33.
- the motor assembly 20 includes a motor case 21, a filter assembly housing 23 and a discharge path 26.
- the motor case 21 includes a suction motor (not shown) which is mounted inside and disposed on the rear portion of the dust collecting chamber 33 to provide a suction force to the dust collecting chamber 33. Additionally, a plurality of air discharge ports 25 are formed on the rear portion of the motor case 21 so that air discharged from the suction motor (not shown) flows out through the air discharge ports 25.
- the filter assembly housing 23 may house the exhaust filter assembly 40 inserted into the exhaust filter insertion hole 35 of the upper case 30.
- the filter assembly housing 23 has an open upper portion, and has a shape corresponding to the exhaust filter assembly 40 in order to house the exhaust filter assembly 40.
- the discharge path 26 has an open lower portion, and extends from the rear portion of the filter assembly housing 23 to fluidly communicate with the rear portion of the filter assembly housing 23. In this situation, the filter assembly housing 23 is formed integrally with the rear portion of the motor case 21, and the discharge path 26 is formed integrally with the rear portion of the filter assembly housing 23, so that the motor case 21, filter assembly housing 23 and discharge path 26 can be combined into a single module.
- the exhaust filter assembly 40 has a structure in which a filter member 44 is inserted into a filter case 42 in the form of a grill, in order to filter carbon powder or fine dust particles from air discharged through the plurality of air discharge ports 25 of the motor case 21.
- the exhaust filter assembly 40 is housed in the filter assembly housing 23 through the exhaust filer insertion hole 35. In this situation, the carbon powder or fine dust particles are filtered from the air passing through the plurality of air discharge ports 25 through the exhaust filter assembly 40, and the filtered air then flows to the discharge path 26 and is discharged through the open lower portion of the discharge path 26.
- the main PCB 50 may supply power to the suction motor (not shown) of the vacuum cleaner, and may control the entire electronic system.
- a circuit part 53 such as a transistor or a Triac (triode AC switch), is mounted on a circuit board 51 fixed onto a top surface of the upper case 30, so that heat may be generated by the circuit part 53 when the vacuum cleaner is driven.
- a heatsink 55 is mounted on one side of the main PCB 50, forming an "L" shape, in order to absorb the heat generated by the circuit part 53.
- a first side 55a of the heatsink 55 is connected to the circuit board 51, and a second side 55b is inserted through a sealing member 60 disposed in a heatsink mounting groove 39 formed on the upper case 30 so as to be disposed between the inside of the upper case 30 and the outside of the motor assembly 20.
- the sealing member 60 is used to seal the opening between the heatsink 55 and the heatsink mounting groove 39 of the upper case 30.
- the sealing member 60 includes a first sealing unit 61, a second sealing unit 62 and a connection groove 63.
- the first sealing unit 61 becomes wider from the top down.
- the second sealing unit 62 is spaced apart from the first sealing unit 61 at a predetermined interval, and becomes wider from the top down similarly to the first sealing unit 61 so that the second sealing unit 62 is made wider than the first sealing unit 61.
- the connection groove 63 is disposed between the first sealing unit 61 and second sealing unit 62. Accordingly, the sealing member 60 has the double sealing structure described above, and is thus connected to the upper case 30 while being pushed from the inside to the outside of the upper case 30 through the double sealing structure. In this situation, the second sealing unit 62 is seated in a recess 39a formed at a lower edge of the heatsink mounting groove 39.
- the sealing member 60 may be in close contact with the upper case 30 without being separated from the heatsink mounting groove 39, so that an airtight seal can be provided.
- the carbon powder or fine dust particles may be filtered from the air discharged through the plurality of air discharge ports 25 of the motor case 21 through the exhaust filter assembly 40. Clean air from which the carbon powder or fine dust particles have been filtered may then be discharged through the open lower portion of the discharge path 26, and may flow into the space formed when the base body 10 is combined with the upper case 30, that is, inside the main cleaner body 5.
- the clean air may flow toward the front portion of the main cleaner body 5 through space S formed between the inside of the upper case 30 and the outside of the motor assembly 20.
- the clean air may absorb heat generated by the heatsink 55 while being in contact with the second side 55b of the heatsink 55 disposed in the space S. Accordingly, heat generated not only by the main PCB 50 in contact with the first side 55a of the heatsink 55 but also by the circuit part 53 mounted in the main PCB 50 may be reduced.
- the clean air passing through the space S formed between the inside of the upper case 30 and the outside of the motor assembly 20 may apply upward pressure to the sealing member 60.
- the sealing member 60 has the double sealing structure and is connected to the upper case 30 while being pushed from the inside to the outside of the upper case 30, as described above, so the second sealing unit 62 may be in contact with the upper case 30 more tightly to be sealed more completely.
- the clean air may be discharged through the exhaust ports 36 of the exhaust ducts 37 disposed on the front portion of the upper case 30.
- the heatsink 55 may be inserted into the upper case 30 rather than into the motor case 21. Additionally, the carbon powder or fine dust particles may be filtered from the air discharged from the motor case 21 through the exhaust filter assembly 40, and the clean air may then cool the heatsink 55. Therefore, it is possible to prevent the carbon powder or fine dust particles from being discharged externally from the main cleaner body 5.
- the clean air may pass through the exhaust ports 36 of the exhaust ducts 37 after cooling the heatsink 55, so it is also possible to prevent the suction force from the dust collecting chamber from being reduced and to maintain regular pressure, as compared to a conventional vacuum cleaner in which some discharged air cools a heatsink and then flows into a dust collecting chamber.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
Description
- The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having a cooling structure to reduce heat generated by a main printed circuit board (PCB) required for power control and electronic control.
- Vacuum cleaners generally draw in dust-laden air from a surface being cleaned, separate dust from the drawn-in air, collect the separated dust and discharge air from which dust has been separated to the outside of main bodies of vacuum cleaners. Such vacuum cleaners include main printed circuit boards (PCBs), which are required for power control and electronic control, but which may generate heat when vacuum cleaners are in use. Such heat may cause the durability of a main PCB to be reduced, so a vacuum cleaner may need to have a cooling structure to cool the main PCB using air flowing inside a main body of the vacuum cleaner.
- However, in a conventional vacuum cleaner, a portion of a heatsink for reducing heat generated by a main PCB is inserted into a suction motor assembly, and air discharged from a suction motor is in direct contact with the heatsink, so that the heat can be absorbed. If a problem arises when sealing the heatsink into the suction motor assembly, carbon powder or fine dust particles may be discharged from the suction motor to the outside of the suction motor assembly, so materials harmful to the human body may be also discharged externally from the vacuum cleaner.
- Furthermore, a conventional vacuum cleaner has a structure which causes a separate flow path capable of drawing in external air to fluidly communicate with a dust collecting chamber, and which allows a heatsink to be mounted inside the flow path in order to cool the heatsink. However, since the external air flows into the dust collecting chamber, the suction force of the dust collecting chamber is reduced and the cleaning efficiency of the vacuum cleaner is thus reduced.
- Exemplary embodiments of the present invention overcome the above disadvantages and other disadvantages not described above.
- The present invention provides a vacuum cleaner which is able to prevent carbon powder and fine dust particles from being discharged from a suction motor to the outside of a motor assembly while reducing heat generated by a main printed circuit board (PCB).
- The present invention also provides a vacuum cleaner which is able to prevent a decrease in the suction efficiency of a suction motor for generating a suction force.
- The above aspects and/or other features of the present invention can be substantially achieved by providing a vacuum cleaner according to claim 1.
- Other objects, advantages and salient features of the disclosure will become apparent from the following detailed description, which, taken in conjunction with the annexed drawings, discloses preferred embodiments of the disclosure.
- These and/or other aspects and advantages of the disclosure 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 an exploded, perspective view showing a vacuum cleaner according to an exemplary embodiment of the present invention; -
FIG. 2 is a perspective view showing a vacuum cleaner according to an exemplary embodiment of the present invention; -
FIG. 3 is a perspective view schematically showing air flowing in order to cool a main PCB of a vacuum cleaner according to an exemplary embodiment of the present invention; and -
FIG. 4 is an enlarged, side view partially cut along the plane IV-IV showing a sealing member shown inFIG. 2 according to an exemplary embodiment of the present invention - Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.
- Hereinafter, a vacuum cleaner according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- The vacuum cleaner in the following exemplary embodiment of the present disclosure may have a structure generally known in the art, except for employing a main printed circuit board (PCB) cooling structure mounted in the vacuum cleaner. Therefore, the vacuum cleaner may have a substantially similar structure to a general vacuum cleaner. Hereinbelow, the main PCB cooling structure according to an exemplary embodiment of the present invention will be explained in detail.
- Referring to
FIGS. 1 and2 , the vacuum cleaner according to the exemplary embodiment of the present invention includes amain cleaner body 5, a motor assembly 20, anexhaust filter assembly 40 and amain PCB 50. - The
main cleaner body 5 includes abase body 10 and anupper case 30. - The
base body 10 includes amotor housing 11 disposed on the rear portion thereof to house the motor assembly 20, and a pair ofwheel mounting units 13 which are disposed on both sides of thebase body 10 and into which a pair of wheels (not shown) are mounted in order to move the vacuum cleaner. - The
upper case 30 is connected to thebase body 10 to cover an upper portion of thebase body 10. Theupper case 30 has an open lower portion so that the motor assembly 20 may be mounted inside theupper case 30. Additionally, theupper case 30 includes adust collecting chamber 33 on the front portion thereof. Thedust collecting chamber 33 includes a dust bag (not shown) to separate dust from drawn-in dust-laden air. Furthermore, theupper case 30 includes an exhaustfilter insertion hole 35 formed on the rear portion of thedust collecting chamber 33, so that theexhaust filter assembly 40 may be inserted into the exhaustfilter insertion hole 35. Theupper case 30 also includes a pair ofexhaust ducts 37 each having anexhaust port 36 on both sides of thedust collecting chamber 33 in order to discharge air discharged from the motor assembly 20 toward the front portion of themain cleaner body 5. - The motor assembly 20 is mounted in a space formed when the
base body 10 is combined with theupper case 30, that is, mounted inside the maincleaner body 5, so as to be disposed on the rear portion of thedust collecting chamber 33. The motor assembly 20 includes amotor case 21, afilter assembly housing 23 and adischarge path 26. - The
motor case 21 includes a suction motor (not shown) which is mounted inside and disposed on the rear portion of thedust collecting chamber 33 to provide a suction force to thedust collecting chamber 33. Additionally, a plurality ofair discharge ports 25 are formed on the rear portion of themotor case 21 so that air discharged from the suction motor (not shown) flows out through theair discharge ports 25. - The
filter assembly housing 23 may house theexhaust filter assembly 40 inserted into the exhaustfilter insertion hole 35 of theupper case 30. Thefilter assembly housing 23 has an open upper portion, and has a shape corresponding to theexhaust filter assembly 40 in order to house theexhaust filter assembly 40. Thedischarge path 26 has an open lower portion, and extends from the rear portion of thefilter assembly housing 23 to fluidly communicate with the rear portion of thefilter assembly housing 23. In this situation, thefilter assembly housing 23 is formed integrally with the rear portion of themotor case 21, and thedischarge path 26 is formed integrally with the rear portion of thefilter assembly housing 23, so that themotor case 21,filter assembly housing 23 anddischarge path 26 can be combined into a single module. - The
exhaust filter assembly 40 has a structure in which afilter member 44 is inserted into afilter case 42 in the form of a grill, in order to filter carbon powder or fine dust particles from air discharged through the plurality ofair discharge ports 25 of themotor case 21. Theexhaust filter assembly 40 is housed in thefilter assembly housing 23 through the exhaustfiler insertion hole 35. In this situation, the carbon powder or fine dust particles are filtered from the air passing through the plurality ofair discharge ports 25 through theexhaust filter assembly 40, and the filtered air then flows to thedischarge path 26 and is discharged through the open lower portion of thedischarge path 26. - The
main PCB 50 may supply power to the suction motor (not shown) of the vacuum cleaner, and may control the entire electronic system. Acircuit part 53, such as a transistor or a Triac (triode AC switch), is mounted on acircuit board 51 fixed onto a top surface of theupper case 30, so that heat may be generated by thecircuit part 53 when the vacuum cleaner is driven. Additionally, aheatsink 55 is mounted on one side of themain PCB 50, forming an "L" shape, in order to absorb the heat generated by thecircuit part 53. Afirst side 55a of theheatsink 55 is connected to thecircuit board 51, and asecond side 55b is inserted through a sealingmember 60 disposed in aheatsink mounting groove 39 formed on theupper case 30 so as to be disposed between the inside of theupper case 30 and the outside of the motor assembly 20. The sealingmember 60 is used to seal the opening between theheatsink 55 and theheatsink mounting groove 39 of theupper case 30. Referring toFIG. 4 , the sealingmember 60 includes afirst sealing unit 61, asecond sealing unit 62 and a connection groove 63. Thefirst sealing unit 61 becomes wider from the top down. Thesecond sealing unit 62 is spaced apart from thefirst sealing unit 61 at a predetermined interval, and becomes wider from the top down similarly to thefirst sealing unit 61 so that thesecond sealing unit 62 is made wider than thefirst sealing unit 61. The connection groove 63 is disposed between thefirst sealing unit 61 andsecond sealing unit 62. Accordingly, the sealingmember 60 has the double sealing structure described above, and is thus connected to theupper case 30 while being pushed from the inside to the outside of theupper case 30 through the double sealing structure. In this situation, thesecond sealing unit 62 is seated in arecess 39a formed at a lower edge of theheatsink mounting groove 39. Therefore, even when air from which dust has been filtered and which flows between the inside of theupper case 30 and the outside of the motor assembly 20 pushes the sealingmember 60 outwards, the sealingmember 60 may be in close contact with theupper case 30 without being separated from theheatsink mounting groove 39, so that an airtight seal can be provided. - Hereinafter, a cooling process of the
heatsink 55 of themain PCB 50 in the vacuum cleaner according to the exemplary embodiment of the present invention will be described with reference toFIGS. 1 to 4 . - The carbon powder or fine dust particles may be filtered from the air discharged through the plurality of
air discharge ports 25 of themotor case 21 through theexhaust filter assembly 40. Clean air from which the carbon powder or fine dust particles have been filtered may then be discharged through the open lower portion of thedischarge path 26, and may flow into the space formed when thebase body 10 is combined with theupper case 30, that is, inside the maincleaner body 5. - Subsequently, the clean air may flow toward the front portion of the main
cleaner body 5 through space S formed between the inside of theupper case 30 and the outside of the motor assembly 20. In this situation, the clean air may absorb heat generated by theheatsink 55 while being in contact with thesecond side 55b of theheatsink 55 disposed in the space S. Accordingly, heat generated not only by themain PCB 50 in contact with thefirst side 55a of theheatsink 55 but also by thecircuit part 53 mounted in themain PCB 50 may be reduced. - The clean air passing through the space S formed between the inside of the
upper case 30 and the outside of the motor assembly 20 may apply upward pressure to the sealingmember 60. However, the sealingmember 60 has the double sealing structure and is connected to theupper case 30 while being pushed from the inside to the outside of theupper case 30, as described above, so thesecond sealing unit 62 may be in contact with theupper case 30 more tightly to be sealed more completely. After the generated heat has been absorbed by theheatsink 55, the clean air may be discharged through theexhaust ports 36 of theexhaust ducts 37 disposed on the front portion of theupper case 30. - As described above, the
heatsink 55 may be inserted into theupper case 30 rather than into themotor case 21. Additionally, the carbon powder or fine dust particles may be filtered from the air discharged from themotor case 21 through theexhaust filter assembly 40, and the clean air may then cool theheatsink 55. Therefore, it is possible to prevent the carbon powder or fine dust particles from being discharged externally from the maincleaner body 5. - Additionally, the clean air may pass through the
exhaust ports 36 of theexhaust ducts 37 after cooling theheatsink 55, so it is also possible to prevent the suction force from the dust collecting chamber from being reduced and to maintain regular pressure, as compared to a conventional vacuum cleaner in which some discharged air cools a heatsink and then flows into a dust collecting chamber. - The foregoing exemplary embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. Also, the description of the exemplary embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (7)
- A vacuum cleaner, comprising:a main cleaner body (5) comprising a pair of exhaust ducts (37);a motor assembly (20) adapted to generate an air suction force;an exhaust filter assembly (40) to filter air generated from the motor assembly (20);a main printed circuit board (PCB) (50) comprising a circuit board (51); anda heatsink (55), connected to the circuit board (51), characterized in that the heatsink (55) is disposed between the exhaust filter assembly (40) and the exhaust ducts (37),the air filtered through the exhaust filter assembly (40) being in contact with the heatsink (55) to exchange heat with the heatsink (55) prior to being discharged externally from the main cleaner body (5) through the exhaust ducts (37).
- The vacuum cleaner according to claim 1, wherein the main cleaner body (5) comprises a base body (10) and an upper case (30) connected to the base body (10), the heatsink (55) having one side (55a) connected to the circuit board (51) and another side (55b) disposed between the inner side of the upper case (30) and the outer side of the motor assembly (20).
- The vacuum cleaner according to claim 1 or 2, the main cleaner body (5) comprising a mounting groove (39) for receiving the heatsink (55) and a sealing member (60) to seal the opening formed between the heatsink mounting groove (39) and the heatsink (55).
- The vacuum cleaner according to claim 3, wherein the sealing member (60) has a double sealing structure.
- The vacuum cleaner according to any of claims 3 and 4, wherein the sealing member (60) comprises:a first sealing unit (61) to seal an outer circumference of the heatsink mounting groove (39);a second sealing unit (62) to seal an inner circumference of the heatsink mounting groove (39); anda connection groove (63) disposed between the first sealing unit (61) and the second sealing unit (62), and inserted into the heatsink mounting groove (39).
- The vacuum cleaner according to claim 5, wherein the second sealing unit (62) is made wider than the first sealing unit (61).
- The vacuum cleaner according to any of claims 1 to 6, wherein the motor assembly (20) comprises:
a motor case (21) in which a suction motor is mounted;
a filter assembly housing (23) formed integrally with a rear portion of the motor case (21) so that the exhaust filter assembly (40) is housed in the filter assembly housing (23); and
a discharge path (26) formed integrally with a rear portion of the filter assembly housing (23) so that the air filtered through the exhaust filter assembly (40) is discharged downward.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080000411A KR101457434B1 (en) | 2008-01-02 | 2008-01-02 | A cleaner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2077089A2 true EP2077089A2 (en) | 2009-07-08 |
EP2077089A3 EP2077089A3 (en) | 2010-02-03 |
EP2077089B1 EP2077089B1 (en) | 2012-04-11 |
Family
ID=40404264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08160222A Active EP2077089B1 (en) | 2008-01-02 | 2008-07-11 | Vacuum cleaner |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2077089B1 (en) |
KR (1) | KR101457434B1 (en) |
RU (1) | RU2008131457A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102106709A (en) * | 2009-12-25 | 2011-06-29 | 三洋电机株式会社 | Electric vacuum cleaner |
JP2014079448A (en) * | 2012-10-17 | 2014-05-08 | Sharp Corp | Vacuum cleaner |
CN104622389A (en) * | 2015-01-29 | 2015-05-20 | 苏州克林威尔电器有限公司 | Safety protecting mechanism for acarus removal dust collector |
WO2017137329A1 (en) | 2016-02-09 | 2017-08-17 | Arcelik Anonim Sirketi | A vacuum cleaner with improved operational performance |
GB2567631A (en) * | 2017-10-16 | 2019-04-24 | Dyson Technology Ltd | A vacuum cleaner |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130047147A (en) * | 2011-10-31 | 2013-05-08 | 엘지전자 주식회사 | Vacuum cleaner |
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DE3815321A1 (en) * | 1988-05-05 | 1989-11-16 | Licentia Gmbh | Vacuum cleaner |
EP0375327A1 (en) * | 1988-12-19 | 1990-06-27 | Sanyo Electric Co., Ltd. | Vacuum cleaner |
JPH10328083A (en) * | 1997-05-29 | 1998-12-15 | Tec Corp | Electric vacuum cleaner |
JP2004229911A (en) * | 2003-01-30 | 2004-08-19 | Toshiba Tec Corp | Vacuum cleaner |
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JP3118335B2 (en) * | 1992-11-11 | 2000-12-18 | 三洋電機株式会社 | Electric vacuum cleaner |
KR20050064946A (en) * | 2003-12-24 | 2005-06-29 | 주식회사 대우일렉트로닉스 | Exhaust air guide for the vacuum cleaner |
-
2008
- 2008-01-02 KR KR1020080000411A patent/KR101457434B1/en active IP Right Grant
- 2008-07-11 EP EP08160222A patent/EP2077089B1/en active Active
- 2008-07-31 RU RU2008131457/12A patent/RU2008131457A/en not_active Application Discontinuation
Patent Citations (4)
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DE3815321A1 (en) * | 1988-05-05 | 1989-11-16 | Licentia Gmbh | Vacuum cleaner |
EP0375327A1 (en) * | 1988-12-19 | 1990-06-27 | Sanyo Electric Co., Ltd. | Vacuum cleaner |
JPH10328083A (en) * | 1997-05-29 | 1998-12-15 | Tec Corp | Electric vacuum cleaner |
JP2004229911A (en) * | 2003-01-30 | 2004-08-19 | Toshiba Tec Corp | Vacuum cleaner |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102106709A (en) * | 2009-12-25 | 2011-06-29 | 三洋电机株式会社 | Electric vacuum cleaner |
JP2014079448A (en) * | 2012-10-17 | 2014-05-08 | Sharp Corp | Vacuum cleaner |
CN104622389A (en) * | 2015-01-29 | 2015-05-20 | 苏州克林威尔电器有限公司 | Safety protecting mechanism for acarus removal dust collector |
WO2017137329A1 (en) | 2016-02-09 | 2017-08-17 | Arcelik Anonim Sirketi | A vacuum cleaner with improved operational performance |
GB2567631A (en) * | 2017-10-16 | 2019-04-24 | Dyson Technology Ltd | A vacuum cleaner |
WO2019077298A1 (en) * | 2017-10-16 | 2019-04-25 | Dyson Technology Limited | A vacuum cleaner |
Also Published As
Publication number | Publication date |
---|---|
EP2077089B1 (en) | 2012-04-11 |
RU2008131457A (en) | 2010-02-10 |
KR20090074583A (en) | 2009-07-07 |
EP2077089A3 (en) | 2010-02-03 |
KR101457434B1 (en) | 2014-11-06 |
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