KR20010113183A - Vacuum cleaner - Google Patents
Vacuum cleaner Download PDFInfo
- Publication number
- KR20010113183A KR20010113183A KR1020000033339A KR20000033339A KR20010113183A KR 20010113183 A KR20010113183 A KR 20010113183A KR 1020000033339 A KR1020000033339 A KR 1020000033339A KR 20000033339 A KR20000033339 A KR 20000033339A KR 20010113183 A KR20010113183 A KR 20010113183A
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- KR
- South Korea
- Prior art keywords
- suction
- passage
- motor
- main body
- vacuum cleaner
- Prior art date
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Classifications
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- 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
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- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
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- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
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- 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
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
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- 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
- A47L9/02—Nozzles
- A47L9/08—Nozzles with means adapted for blowing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
- Electric Suction Cleaners (AREA)
Abstract
본 발명에 따르면, 진공청소기는 흡입통로와 배출통로를 가진 본체와, 이 본체의 흡입통로상에 설치되는 집진포대 및 고속의 모우터에 의해 회전하는 임펠러를 가진 흡입수단과, 상기 본체와 연결되는 것으로 흡입통로및 배출통로와 연통되는 흡입로와 배출로가 마련된 연결관과, 상기 본체의 흡입통로 또는 배출통로중 적어도 일측에 설치되어 모우터를 냉각시키기 위한 냉각수단을 포함한다.According to the present invention, the vacuum cleaner is connected to the main body having a suction passage and a discharge passage, a suction bag having a dust bag installed on the suction passage of the main body, and an impeller rotating by a high speed motor, And a connection pipe provided with a suction passage and a discharge passage communicating with the suction passage and the discharge passage, and cooling means installed on at least one side of the suction passage or the discharge passage of the main body to cool the motor.
Description
본 발명은 진공청소기에 관한 것으로, 더 상세하게는 흡입된 공기를 배출시키지 않은 무배기 진공청소기에 관한 것이다.The present invention relates to a vacuum cleaner, and more particularly, to an exhaust-free vacuum cleaner that does not discharge sucked air.
통상적인 진공청소기는 청소하고자 하는 부위의 공기를 높은 흡입력으로 흡입하여 이 공기에 편승된 미세한 이물들을 집진포대, 배기필터를 통과시켜 포집한 후 흡입한 공기는 본체에 설치된 배기구를 통하여 외부로 배기시킨다.A general vacuum cleaner sucks air in a part to be cleaned with a high suction force, collects and collects fine foreign matters piggybacked in the air through a dust collecting bag and an exhaust filter, and exhausts the sucked air to the outside through an exhaust port installed in the main body. .
상기 진공청소기는 사용시 모우터, 포집된 이물, 진공청소기의 기밀을 위한 패킹등으로부터 좋지 않은 냄새가 심하게 발생하게 되고 배출되는 공기가 집안으로 쉽게 확산된다. 이러한 진공청소기로부터 발생되는 냄새를 제거하기 위하여 종래에는 청소기의 배출구측에 방향제를 부착하여 왔다. 그러나 방향제는 해면체에 액상의 향이 함침되어 있는 구조이므로 장시간 사용할 수 없는 문제점이 있다.When the vacuum cleaner is in use, bad smell is badly generated from the motor, the collected foreign material, the packing for the airtightness of the vacuum cleaner, and the discharged air is easily diffused into the house. In order to remove the odor generated from such a vacuum cleaner, a perfume is conventionally attached to the outlet side of a vacuum cleaner. However, the fragrance has a problem that can not be used for a long time because the structure is impregnated with the liquid aroma in the sponge.
상술한 바와 같은 문제점을 해결하기 위하여 흡입된 공기를 브로쉬측으로 리턴시켜 재 흡입하는 무배기 진공청소기가 개발되었다.In order to solve the above problems, an exhaust-free vacuum cleaner has been developed for returning suctioned air to the broth side and re-suctioning it.
도 1에는 이러한 무배기 진공청소기의 일예를 나타내 보였다.Figure 1 shows an example of such an exhaust-free vacuum cleaner.
도시된 바와 같이 흡입통로(11)와 배출통로(12)를 가진 본체(10)와, 이 본체(10)의 흡입통로(11)상에 설치되는 집진포대(13) 및 고속의 모우터에 의해 회전하는 임펠러를 가진 흡입수단(14)과, 상기 본체(10)와 연결되는 것으로 흡입통로(11) 및 배출통로(12)와 각각 연통되는 흡입로(21)와 배기로(22)가 마련된 연결관(20)과 상기 연결관(20)의 단부에 설치되는 브러쉬(23)를 포함한다.As shown, the main body 10 having the suction passage 11 and the discharge passage 12, the dust collecting bag 13 installed on the suction passage 11 of the main body 10, and a high-speed motor A suction means 14 having a rotating impeller and a suction passage 21 and an exhaust passage 22 which are connected to the suction passage 11 and the discharge passage 12 to be connected to the main body 10 are provided. And a brush 23 installed at an end of the tube 20 and the connecting tube 20.
상기와 같이 구성된 종래의 진공청소기는 흡입수단(14)의 모우터에 의해 브러쉬(23)과 연결관(20)의 흡입로(21)를 통하여 먼지등과 같은 이물이 공기와 같이 편승되어 집진포대(13) 내에 대부분 포집되고, 이 집진포대(13)에서 포집되지 못한 미세 먼지는 모우터 보호필터(미도시)를 거쳐 흡착 및 포집된다. 그리고 흡입된 공기는 본체(10)의 배출통로(12)와 배기로(22) 및 브러쉬(23) 통하여 브러쉬가 근접된 바닥면에 분사되어 이물을 편승시킨 후 브러쉬와 흡입로(22)를 통하여 재 흡입된다.The conventional vacuum cleaner configured as described above is picked up by dust of foreign matter such as dust and the like by air through the suction path 21 of the brush 23 and the connecting pipe 20 by the motor of the suction means (14). Most of the fine dust collected in (13) and not collected in the dust collecting bag 13 is absorbed and collected through a motor protection filter (not shown). And the sucked air is sprayed to the bottom surface near the brush through the discharge passage 12, the exhaust passage 22 and the brush 23 of the main body 10 to piggyback the foreign matter through the brush and the suction passage 22 Is inhaled again.
상기와 같이 작동되는 무재기 진공청기는 흡입된 공기가 집진포대(13)를 통과하면서 편승된 이물이 제거된 후 흡입수단(14)의 모우터를 냉각시키고 배출통로(12) 및 상기 배기로(22)를 통하여 배출되도록 되어 있으므로 통로내의 손실수두가 커지고, 흡입 및 배기되는 공기의 일부가 재순환되므로 모우터를 충분히 냉각시킬 수 없다. 따라서 흡입수단의 모우터회전수를 높여 흡입력을 향상시키는데 많은 제약을 받게되는 문제점이 있다.The airless vacuum cleaner operated as described above cools the motor of the suction means 14 after the sucked air passes through the dust collecting bag 13 to remove the foreign material that has been piggybacked, and discharges the passage 12 and the exhaust path ( 22) Since the discharge head is discharged through 22), the head of loss is increased in the passage, and part of the intake and exhaust air is recycled, so that the motor cannot be sufficiently cooled. Therefore, there is a problem that a lot of constraints to improve the suction power by increasing the motor rotation speed of the suction means.
이와 같은 문제점을 해결하기 위하여 본체의 후면에 개폐가능한 배가덕트를 설치하여 모우터를 냉각시킨 공기의 일부를 배출하고 있으나 이 경우 배기에 따른 악취문제를 해결하기 어렵다.In order to solve this problem, a ventilator that is openable on the rear of the main body is installed to discharge a part of air cooled by the motor, but in this case, it is difficult to solve the odor problem due to the exhaust.
본 발명의 기술적 과제는 상술한 문제점을 해결하기 위한 것으로, 모우터의 냉각효율 높여 모우터의 과열로 인한 흡입력감소와 모우터의 손상을 근본적으로 해결할 수 있으며, 흡입력을 얻기 위한 흡입수단과 모우터의 설계의 폭을 넓힐 수 있는 진공청소기를 제공함에 있다.The technical problem of the present invention is to solve the above-described problems, it is possible to fundamentally solve the reduction of suction power and damage to the motor due to the overheating of the motor to increase the cooling efficiency of the motor, the suction means and the motor to obtain the suction power To provide a vacuum cleaner that can expand the design of the.
도 1는 종래 진공청소기를 개략적으로 도시한 단면도,1 is a cross-sectional view schematically showing a conventional vacuum cleaner,
도 2는 본 발명에 따른 진공청소기를 개략적으로 도시한 단면도,2 is a cross-sectional view schematically showing a vacuum cleaner according to the present invention;
도 3은 열전소자의 구동을 위한 회도도,3 is a circuit diagram for driving a thermoelectric element,
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
31; 본체 32;집진필터31; Body 32; Dust Collector Filter
33; 흡입수단 33a; 모우터33; Suction means 33a; Motor
34; 흡입통로 35; 배출통로34; Suction passage 35; Discharge passage
40; 냉각수단 41; 열전소자40; Cooling means 41; Thermoelectric element
상기 목적을 달성하기 위하여 본 발명의 진공청소기는 흡입통로와 배출통로를 가진 본체와, 이 본체의 흡입통로상에 설치되는 집진포대 및 고속의 모우터에 의해 회전하는 임펠러를 가진 흡입수단과, 상기 본체와 연결되는 것으로, 흡입통로와 배출통로와 연통되는 흡입로와 배기로가 마련된 연결관과, 상기 본체의 흡입통로 또는 배출통로중 적어도 일측에 설치되어 모우터를 냉각시키기 위한 냉각수단을포함하여 된 것을 그 특징으로 한다.In order to achieve the above object, the vacuum cleaner of the present invention includes a main body having a suction passage and a discharge passage, suction means having an impeller rotating by a dust collecting bag and a high speed motor installed on the suction passage of the main body, and It is connected to the main body, including a connection pipe provided with a suction passage and an exhaust passage communicating with the suction passage and the discharge passage, and installed on at least one side of the suction passage or the discharge passage of the main body and cooling means for cooling the motor It is characterized by that.
본 발명에 있어서, 상기 냉각수단은 본체의 흡입 및 배출통로에 설치된 열전소자로 이루어진다.In the present invention, the cooling means comprises a thermoelectric element installed in the suction and discharge passages of the main body.
이하 첨부된 도면을 참조하여 본 발명에 따른 한 바람직한 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2에는 본 발명에 캐니스터(canister)청소기(30)의 일예를 나타내 보였다.2 shows an example of the canister cleaner 30 in the present invention.
도시된 바와 같이 본체(31)에 집진포대(32)와 모우터(33a)에 의해 고속으로 회전하는 임펠러(미도시)를 가진 흡입수단(33)가 장착되는 흡입통로(34)가 형성되고, 이 흡입통로(34)와 연통되며 상기 흡입통로를 통하여 흡입된 공기가 배출되는 배출통로(35)가 형성된다. 상기 흡입통로(34)의 입구와 배출통로(35)의 출구는 인접되게 형성되어 후술하는 연결관과 접속된다. 그리고 상기 흡입통로(34)와 배출통로(34)내의 적어도 일측에는 모우터를 냉각시키기 위한 냉각수단(40)이 설치된다. 이 냉각수단(40)은 열전소자(41)가 이용되는데, 이 열전소자(41)은 도 3에 도시된 바와 같이 청소기의 제어부에 의해 모우터(33a)의 온도가 감지된 후 이 모우터(33a)의 온도에 따라 작동된다. 바람직하게는 상기 열전소자의 설치위치는 모우터로 유입되는 공기를 냉각시킬 수 있는 흡입통로(34) 상에 설치하는 것이 바람직하다.As shown in the drawing, a suction passage 34 is provided on the main body 31, on which suction means 33 having an impeller (not shown) rotated at high speed by the dust collecting bag 32 and the motor 33a, A discharge passage 35 communicating with the suction passage 34 and through which the air sucked through the suction passage is discharged is formed. The inlet of the suction passage 34 and the outlet of the discharge passage 35 are adjacent to each other and are connected to a connecting pipe to be described later. And at least one side of the suction passage 34 and the discharge passage 34 is provided with a cooling means 40 for cooling the motor. The cooling means 40 is a thermoelectric element 41 is used, the thermoelectric element 41 is the motor (33a) after the temperature of the motor 33a is sensed by the controller of the cleaner as shown in FIG. It is operated according to the temperature of 33a). Preferably, the installation position of the thermoelectric element is preferably installed on the suction passage 34 that can cool the air flowing into the motor.
그리고 상기 흡입통로(33)와 배출통로(34)의 입구와 출구는 상기 흡입통로(33)와 연통되는 흡입로(35a)와 상기 배출통로(34)와 연통되는 배기로(35b)가 형성된 연결관(35)과 결합된다. 상기 연결관(35)의 단부에는브러쉬(36)가 설치되는데, 이 브러쉬(36)에는 상기 배기로(35b)로부터 배출된 공기가 이물과 편승되어 흡입로(35a)로 유입될 수 있도록 공유공간부(36a)가 형성된다.The inlet and outlet of the suction passage 33 and the discharge passage 34 are connected to the suction passage 35a communicating with the suction passage 33 and the exhaust passage 35b communicating with the discharge passage 34. It is coupled with the tube (35). A brush 36 is installed at an end of the connecting pipe 35, and the brush 36 has a shared space so that the air discharged from the exhaust passage 35b can be piggybacked with a foreign material and flow into the suction passage 35a. A portion 36a is formed.
상술한 바와 같이 구성된 진공청소기는 작동시 흡입수단(33)의 모우터(33a)의 작동으로 흡입력이 발생되고 이 흡입력으로 먼지등과 같은 이물이 연결관(35)의 흡입로(35a)를 통하여 흡입되는 공기와 같이 편승되어 집진포대(32) 내에 포집된다. 상기 흡입된 공기는 모우터(33a)의 모호필터(미도시)를 거쳐 배출통로(34)과 연결관(35)의 배기로(35b)를 통하여 배출된 후 상술한 바와 같이 이물을 편승시킨 후 다시 흡입된다.In the vacuum cleaner configured as described above, suction force is generated by the operation of the motor 33a of the suction means 33, and foreign substances such as dust and the like are introduced through the suction passage 35a of the connection pipe 35 by the suction force. Like air sucked in, it is piggybacked and collected in the dust collecting bag 32. The sucked air is discharged through the exhaust passage (35b) of the discharge passage 34 and the connection pipe 35 through the obscure filter (not shown) of the motor 33a and then piggybacked foreign matter as described above Inhaled again.
이 과정에서 상기 흡입통로(33)와 모우터(33a)의 내외부 및 배출통로(34)를 순환하는 공기는 과열되는데, 상기 제어부에 의해 모우터(33a)의 온도가 설정된 온도 이상이 되면 제어부에 의해 열전소자(41)이 작동되어 순환되는 공기 또는 모우터로 유입되는 공기를 냉각시킴으로써 모우터의 냉각효율을 향상시킨다.In this process, the air circulating in and out of the suction passage 33 and the motor 33a and the discharge passage 34 is overheated, and when the temperature of the motor 33a is higher than the set temperature by the controller, The thermoelectric element 41 is operated to cool the air circulated or the air flowing into the motor, thereby improving the cooling efficiency of the motor.
상기와 같이 열전소자의 작동으로 모우터의 냉각이 이루어지면 상기 제어부에 의해 상기 모우터의 온도를 감지하고, 이 감지된 온도가 설정된 온도 이하가 되면 열전소자의 작동을 정지시킨다.When the cooling of the motor is made by the operation of the thermoelectric element as described above, the temperature of the motor is sensed by the controller, and when the detected temperature is lower than the set temperature, the operation of the thermoelectric element is stopped.
상기와 같이 본 발명에 따른 진공 청소기는 흡입통로 및 흡입로와 배출통로 및 배기로를 순환하는 공기의 과열로 모우터의 냉각효율이 저하되고 모우터가 과열되는 것을 근본적으로 해결할 수 있으며, 나아가서는 모우터의 과열로 인한 흡입력의 저하를 방지할 수 있는 이점을 가진다.As described above, the vacuum cleaner according to the present invention can fundamentally solve the deterioration of the cooling efficiency of the motor and the overheating of the motor due to the overheating of air circulating through the suction passage and the suction passage and the discharge passage and the exhaust passage. It has an advantage of preventing a decrease in suction power due to overheating of the motor.
본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 청구범위의 기술적 사상에 의해 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the claims.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000033339A KR20010113183A (en) | 2000-06-16 | 2000-06-16 | Vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000033339A KR20010113183A (en) | 2000-06-16 | 2000-06-16 | Vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20010113183A true KR20010113183A (en) | 2001-12-28 |
Family
ID=19672305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000033339A KR20010113183A (en) | 2000-06-16 | 2000-06-16 | Vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20010113183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100848826B1 (en) * | 2007-01-17 | 2008-07-28 | 최영자 | Vacuum cleaner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624662U (en) * | 1992-08-31 | 1994-04-05 | 日本電信電話株式会社 | Air circuit type electric cleaning device |
| KR950008127U (en) * | 1993-09-21 | 1995-04-15 | Internal temperature increase prevention device of vacuum cleaner | |
| US5457848A (en) * | 1992-10-26 | 1995-10-17 | Tokyo Cosmos Electric Co. Ltd. | Recirculating type cleaner |
| KR970064538A (en) * | 1996-03-30 | 1997-10-13 | 배순훈 | Internal air cooling system of vacuum cleaner using thermoelectric element |
| KR200192753Y1 (en) * | 2000-03-06 | 2000-08-16 | 정중호 | Vacuum cleaner of air circulation type |
-
2000
- 2000-06-16 KR KR1020000033339A patent/KR20010113183A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624662U (en) * | 1992-08-31 | 1994-04-05 | 日本電信電話株式会社 | Air circuit type electric cleaning device |
| US5457848A (en) * | 1992-10-26 | 1995-10-17 | Tokyo Cosmos Electric Co. Ltd. | Recirculating type cleaner |
| KR950008127U (en) * | 1993-09-21 | 1995-04-15 | Internal temperature increase prevention device of vacuum cleaner | |
| KR970064538A (en) * | 1996-03-30 | 1997-10-13 | 배순훈 | Internal air cooling system of vacuum cleaner using thermoelectric element |
| KR200192753Y1 (en) * | 2000-03-06 | 2000-08-16 | 정중호 | Vacuum cleaner of air circulation type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100848826B1 (en) * | 2007-01-17 | 2008-07-28 | 최영자 | Vacuum cleaner |
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