KR100233513B1 - Structure of air flow for vacuum cleaner - Google Patents

Structure of air flow for vacuum cleaner Download PDF

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Publication number
KR100233513B1
KR100233513B1 KR1019970048258A KR19970048258A KR100233513B1 KR 100233513 B1 KR100233513 B1 KR 100233513B1 KR 1019970048258 A KR1019970048258 A KR 1019970048258A KR 19970048258 A KR19970048258 A KR 19970048258A KR 100233513 B1 KR100233513 B1 KR 100233513B1
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South Korea
Prior art keywords
drive motor
exhaust
vacuum cleaner
flow path
guide
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KR1019970048258A
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Korean (ko)
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KR19990026206A (en
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박창도
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구자홍
엘지전자주식회사
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Priority to KR1019970048258A priority Critical patent/KR100233513B1/en
Priority to DE19843719A priority patent/DE19843719A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Suction Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

본 발명은 진공청소기에 관한 것으로, 특히 구동모터의 흡입일률을 높임과 동시에 구동모터에서 발생되는 진동과 소음이 흡수·차단되도록 하기 위한 것으로, 청소기본체(10)의 집진실후벽(11)에 기밀하게 지지되는 방진구(20)와, 상기 방진구(20)에 끼워지고 중심부가 함입되는 흡기안내구(30)와, 상기 흡기안내구(30)에 끼워지는 완충구(40)와, 상기 완충구(40)에 지지되는 회전날개보호판(51)에 체결되는 구동모터(50)와, 상기 구동모터(50)를 감싸도록 체결되는 배기안내구(60)와, 상기 배기안내구(60)를 지지하며 공기유로를 연장시키는 배기유도구(70)와, 상기 배기유도구(70)를 경유한 공기유로가 통과되며 청소기본체(10)의 내벽면에 부착되는 바디흡음제(80)로 구성됨을 특징으로 하는 진공청소기의 공기유로구조이다.The present invention relates to a vacuum cleaner, and in particular, to increase the suction power of the drive motor and to absorb and block the vibration and noise generated from the drive motor, which is airtight on the rear wall 11 of the dust collecting chamber of the cleaning base 10. A dustproof port 20 which is supported to be secured, an intake guide port 30 fitted into the dustproof port 20, and a central portion thereof is inserted therein, a buffer hole 40 fitted into the intake guide port 30, and the buffer Drive motor 50 is fastened to the rotary blade protection plate 51 supported by the sphere 40, the exhaust guide 60 is fastened to surround the drive motor 50, and the exhaust guide 60 An exhaust oil tool (70) supporting and extending the air passage, and a body sound absorbent (80) passing through the exhaust oil tool (70) and attached to an inner wall surface of the cleaning main body (10). The air flow path structure of the vacuum cleaner.

Description

진공청소기의 공기유로구조Air flow structure of vacuum cleaner

본 발명은 진공청소기에 관한 것으로, 특히 구동모터의 흡입일률을 높임과 동시에 구동모터에서 발생되는 진동과 소음이 흡수·차단되도록 하는 진공청소기의 공기유로구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to an air flow path structure of a vacuum cleaner which increases the suction work rate of a driving motor and simultaneously absorbs and cuts off vibrations and noises generated from the driving motor.

종래 진공청소기의 공기유로구조는 제1도와 제2도에 도시한 바와 같이, 청소기본체(1)의 집진실후벽(1a)에 기밀하게 지지되는 방진고무(2)와, 이 방진고무(2)의 내측에 끼워지고 중심부에 형성되는 흡기구멍(3a)쪽으로 완만하게 돌출되는 원추형의 회전날개보호판(3)과, 이 회전날개보호판(3)에 체결되며 외부공기를 흡입하는 구동모터(4)와, 이 구동모터(4)를 지지하며 송풍되는 공기흐름을 바꾸고 유로를 길게 연장시키는 배기유도구(5)로 구성되었다.As shown in FIG. 1 and FIG. 2, an air flow path structure of a conventional vacuum cleaner includes a dustproof rubber (2) which is hermetically supported on the rear wall (1a) of the dust collecting chamber (1), and the dustproof rubber (2). A conical rotary blade guard plate 3 fitted into the inner side and projecting gently toward the intake hole 3a formed at the center thereof, and a drive motor 4 fastened to the rotary blade guard plate 3 and sucking external air; The exhaust oil tool 5 supports the driving motor 4, changes the air flow blown, and extends the flow path.

이러한 종래 진공청소기의 공기 유로구조는 제1도와 제2도에 도시한 바와 같이, 구동모터(4)가 작동되면 방진고무(2)에 의하여 청소기본체(1)의 집진실이 진공상태가 되어 외부공기가 오물과 함께 청소기본체(1)의 집진실에 흡입되었고, 이 청소기본체(1)의 집진실에 흡입된 오물은 먼지여과기(1b)에 저장되나 흡입된 공기는 먼지여과기(1b)를 통과하여 청소기본체(1)의 집진실후벽(1a)을 통과하였으며, 이 청소기본체(1)의 집진실후벽(1a)를 통과한 공기는 방진고무(2)의 내측에 끼워진 회전날개보호판(3)의 흡기구멍(3a)쪽으로 와류를 일으키면서 유입되었고, 이 흡입된 공기는 회전날개보호판(3)의 흡기구멍(3a)을 통하여 구동모터(4)에 유입되었으며, 이 구동모터(4)에 유입된 공기는 후부에 체결된 배기유도구(5)에 송풍되었고, 이 송풍된 공기는 배기유도구(5)의 내부를 경유하면서 유로가 변경되었고, 동시에 배기유도구(5)에 부착된 흡음재(5a)에 의하여 유속저하 및 유속에너지의 감소가 이루어졌으며, 이러한 과정을 통하여 소음이 저감된 공기는 청소기본체(1)의 후부에 형성된 토출구멍(1c)들을 통하여 외부에 토출되었다.As shown in FIG. 1 and FIG. 2, the air passage structure of the conventional vacuum cleaner has a dust collecting chamber 2 of the cleaning base 1 being vacuumed by the dustproof rubber 2 when the driving motor 4 is operated. The air is sucked into the dust collecting chamber of the cleaning main body 1 together with the dirt, and the dirt sucked into the dust collecting chamber of the cleaning main body 1 is stored in the dust filter 1b, but the sucked air passes through the dust filter 1b. To pass through the dust collecting chamber rear wall 1a of the cleaning main body 1, and the air passing through the dust collecting chamber rear wall 1a of the cleaning main body 1 is a rotary wing protection plate 3 fitted inside the dustproof rubber 2. Vortex flows into the intake hole 3a of the intake air, and the sucked air flows into the drive motor 4 through the intake hole 3a of the rotor blade protection plate 3, and flows into the drive motor 4. The blown air was blown into the exhaust oil tool 5 fastened to the rear part, and the blown air was blown out of the exhaust oil tool 5. The flow path was changed while passing through the interior, and at the same time, the flow rate was reduced and the flow rate energy was reduced by the sound absorbing material 5a attached to the exhaust oil tool 5. Was discharged to the outside through the discharge holes 1c formed in the rear portion of the "

그러나, 이와 같은 종래 진공청소기의 공기 유로구조는, 흡입공기를 안내하는 회전날개보호판의 외형상 구조가 중심부의 흡기구멍쪽으로 돌출되었기 때문에, 상기 회전날개보호판의 외주연에 별도의 공간이 형성되어 와류현상이 발생되어 흡입일률이 저하되었고, 또한 회전날개보호판의 외주면에 끼워진 방진고무가 진동이 가장 크게 발생되는 구동모터의 회전날개 끝부분에 위치하므로 회전날개에서 발생된 진동이 청소기본체에 직접적으로 전달되었으며, 배기유도구가 구동모터를 완전히 감싸지 못하고 그 일부만 감싸도록 하였기 때문에, 송풍날개와 정류편에서 각각 발생되는 고주파(4.5kHz,12kHz)대역의 소음이 청소기본체의 외부에 전달되어 귀에 거슬리는 문제점이 있었다.However, such an air flow path structure of the conventional vacuum cleaner has a separate space formed on the outer circumference of the rotary wing protection plate because the external structure of the rotary wing protection plate for guiding the suction air protrudes toward the intake hole in the center. Phenomenon occurred and the suction work rate was lowered. Also, since the dust-proof rubber inserted on the outer circumferential surface of the rotor blade protection plate is located at the end of the rotor blade of the driving motor where vibration is the greatest, the vibration generated from the rotor blade is directly transmitted to the cleaning body. Since the exhaust oil tool does not completely surround the driving motor, but only a part of it, the noise of the high frequency (4.5kHz, 12kHz) band generated from the blower wing and the rectifying piece is transmitted to the outside of the cleaning main body. there was.

본 발명은 상기의 결점을 해소하기 위한 것으로, 구동모터의 전면에 체결되는 회전날개보호판에는 완충구와 중심부가 오목한 흡기안내구를 기밀하게 체결하고, 상기 구동모터의 후부에는 모터지지구를 체결하여 배기안내부에 장착하며, 청소기본체에는 흡음재를 부착하여, 흡입일률을 높임과 동시에 구동모터에서 발생되는 진동과 소음이 차단되도록 하는 진공청소기의 공기 유로구조를 제공하고자 한다.The present invention is to solve the above-mentioned drawback, the rotary wing protection plate which is fastened to the front of the drive motor tightly fastening the intake guide of the inlet guide and the recessed in the center, and the back of the drive motor by fastening the motor support to exhaust Mounted on the guide, and the cleaning main body by attaching a sound absorbing material, to improve the suction work rate and at the same time to provide an air flow structure of the vacuum cleaner to block the vibration and noise generated from the drive motor.

제1도는 종래 진공청소기의 공기유로구조를 나타내는 분해사시도.1 is an exploded perspective view showing an air flow path structure of a conventional vacuum cleaner.

제2도는 종래 진공청소기의 공기유로구조를 나타내는 단면도.2 is a cross-sectional view showing an air flow path structure of a conventional vacuum cleaner.

제3도는 본 발명 진공청소기의 공기유로구조를 나타내는 분해사시도.3 is an exploded perspective view showing the air flow path structure of the vacuum cleaner of the present invention.

제4도는 본 발명 진공청소기의 공기유로구조를 나타내는 단면도.4 is a cross-sectional view showing the air flow path structure of the vacuum cleaner of the present invention.

제5도는 본 발명 진공청소기의 공기유로구조에서 흡입안내구에 끼워지는 완충구를 나타내는 단면도.Figure 5 is a cross-sectional view showing a buffer port fitted to the suction guide in the air flow structure of the vacuum cleaner of the present invention.

제6도는 본 발명 진공청소기의 공기유로구조를 통한 소음개선효과를 나타내는 소음개선도.6 is a noise improvement diagram showing the noise improvement effect through the air flow path structure of the vacuum cleaner of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 청소기본체 11 : 집진실후벽10: basic cleaning body 11: dust collecting room rear wall

20 : 방진구 30 : 흡기안내구20: dustproof port 30: intake guide

31 : 흡기구멍 40 : 완충구31: intake hole 40: buffer hole

41 : 중공부 50 : 구동모터41: hollow part 50: drive motor

51 : 회전날개보호판 60 : 배기안내구51: rotor blade protection plate 60: exhaust guide

61 : 통기구멍 62 : 배기흡음재61 vent hole 62 exhaust sound absorbing material

70 : 배기유도구 71 : 모터지지구70: exhaust oil tool 71: motor support

80 : 흡음재80: sound absorbing material

본 발명의 실시예를 첨부 도면에 의하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명 진공청소기의 공기유로구조는 제3도와 제4도에 도시한 바와 같이, 통상 앞쪽에 흡입구와 연통되게 집진실이 형성되고 뒤쪽에 상기 집진실과 연통되게 공간이 형성되어 상기 공간에 구동모터(50)가 장착되는 청소기본체(10)와, 상기 청소기본체(10)의 집진실과 뒤쪽 공간 사이의 통로 외곽부인 집진실후벽(11)에 동심원상으로 부착되는 방진구(20)와, 상기 방진구(20) 내주면에 외주연이 끼워지고 중심부가 후방으로 함입되며 통공 가능하게 형성되는 흡기안내구(30)와, 상기 흡기안내구(30)의 후단부와 상기 구동모터(50) 선단의 회전날개보호판(51) 사이에 장착되는 완충구(40)와, 상기 구동모터(50)의 외곽부와 소정 간격을 두고 선단이 상기 흡기안내구(30)와 연통되게 결합되어 후방으로 유로를 형성하는 배기안내구(60)와, 상기 배기안내구(60)의 후단에 중심부가 상기 유로가 연통되도록 결합되고 외곽부가 청소기본체(10)의 뒤쪽 공간 내에서 전방쪽으로 절곡 연장되어 상기 배기안내구(60)의 유로를 연장시키는 배기유도구(70)와, 상기 청소기본체(10) 뒤쪽 공간의 내벽면에 부착되는 흡음재(80)로 구성됨을 특징으로 한다.As shown in FIG. 3 and FIG. 4, the air passage structure of the vacuum cleaner according to the present invention generally includes a dust collecting chamber in front of the suction port and a space in the rear of the dust collecting chamber so as to communicate with the dust collecting chamber. And a dustproof opening 20 attached concentrically to the dust collecting chamber rear wall 11, which is an outer portion of the passage between the dust collecting chamber and the rear space of the cleaning basic body 10, to which the cleaning body 10 is mounted, and The inlet guide 30 is formed on the inner circumferential surface of the anti-vibration opening 20 and the center is recessed to the rear, and the rear end of the intake guide 30 and the tip of the driving motor 50 are formed. A shock absorbing port 40 mounted between the rotary wing protection plate 51 and a tip are coupled to communicate with the intake guide 30 at a predetermined distance from an outer portion of the driving motor 50 to form a flow path backward. To the exhaust guide 60 and the rear end of the exhaust guide 60 An exhaust oil tool 70 coupled to the core portion so that the flow path is in communication and an outer portion is bent forward in the rear space of the cleaning body 10 to extend the flow path of the exhaust guide 60, and the cleaning body ( 10) It is characterized by consisting of a sound absorbing material (80) attached to the inner wall surface of the rear space.

상기 완충구(40)는, 내부에 중공부(41)를 형성하여 구동모터(50)에서 발생되는 진동이 흡수되도록 한다.The buffer hole 40, the hollow portion 41 is formed therein so that the vibration generated from the drive motor 50 is absorbed.

상기 배기안내구(60)는, 내벽면에 별도의 배기흡음재(62)를 부착하여 구동모터(50)를 경유한 공기유로가 통과되도록 한다.The exhaust guide 60 is attached to a separate exhaust sound absorbing material 62 on the inner wall surface to allow the air flow path through the driving motor 50 to pass.

상기 배기유도구(70)는, 구동모터(50)의 후부를 지지하도록 부가되는 모터지지구(71)를 체결하여 구동모터(50)가 안정적으로 지지되도록 한다.The exhaust oil tool 70 fastens the motor support 71 which is added to support the rear portion of the driving motor 50 so that the driving motor 50 is stably supported.

즉, 상기 모터지지구(71)는 구동모터(50)의 후미에 설치됨과 동시에 배기안내구(60)에 장착된 구동모터(50)를 배기안내구(60)에 진동없이 장착되도록 한다.That is, the motor support 71 is installed at the rear of the drive motor 50 and at the same time so that the drive motor 50 mounted on the exhaust guide 60 is mounted to the exhaust guide 60 without vibration.

이러한 본 발명 진공청소기의 공기유로구조는 제3도 내지 제6도에 도시한 바와 같이, 구동모터(50)가 작동되면, 방진구(20)에 의하여 청소기본체(10)의 집진실이 진공상태가 되며, 이로 인하여 외부공기가 오물과 함께 집진실에 흡입되고, 이 집진실에 흡입된 오물은 먼지필터에 집적되고 흡입된 공기는 공기유로를 따라 집진실후벽(11)을 통과하며, 이 집진실후벽(11)을 통과한 공기는 흡기안내구(30)의 오목한 함입면을 따라 와류발생 없이 중심에 형성된 흡기구멍(31)으로 흡입되고, 이 흡기구멍(31)을 통과한 공기는 완충구(40)에 끼워진 회전날개보호판(51)을 지나 구동모터(50)를 경유하며, 이 구동모터(50)를 경유한 공기는 배기안내구(60)의 배기흡음재(62)를 지나 통기구멍(61)을 통과하고, 이 통기구멍(61)을 통과한 공기는 배기유도구(70)의 유도로 청소기본체(10)의 흡음재(80)를 경유하여 외부에 토출되며, 상기 구동모터(50)에서 발생되는 진동은 완충구(40)·방진구(20)·모터지지구(71)등에서 흡수되어 저감되고, 본 발명에 의한 소음저감효과는 30,000 RPM 인 구동모터에서 회전날개가 9개이며 정류자편이 24인 경우 제6도에 도시한 바와 같이, 구동모터(50)의 진동대역은 30,000 RPM/60초=500Hz이며, 회전날개의 소음은 500회/초×9(날개수)=4.5kHz이고, 정류자편의 소음은 500회/초×24(날개수)=12kHz이므로, 종래의 것에 비하여 약 2dB 정도 저감됨을 알 수 있다.The air flow path structure of the vacuum cleaner of the present invention is shown in FIGS. 3 to 6, when the driving motor 50 is operated, the dust collecting chamber of the cleaning main body 10 is vacuumed by the dustproof opening 20. Due to this, the outside air is sucked into the dust collecting chamber together with the dirt, and the dust sucked into the dust collecting chamber is accumulated in the dust filter and the sucked air passes through the dust collecting chamber rear wall 11 along the air passage. The air passing through the true rear wall 11 is sucked into the intake hole 31 formed in the center along the concave indentation surface of the intake guide 30 without vortex generation, and the air passing through the intake hole 31 is a buffer port. Passing through the drive motor 50 through the rotary blade protection plate 51 fitted to the 40, the air passing through the drive motor 50 passes through the exhaust sound absorbing material 62 of the exhaust guide (60) vent holes ( 61, and the air passing through the vent hole 61 is cleaned by induction of the exhaust oil tool 70 (1). Discharged to the outside via the sound absorbing material 80 of (0), the vibration generated in the drive motor 50 is absorbed and reduced by the shock absorbing port 40, the dustproof hole 20, the motor support 71, and the like, Noise reduction effect according to the present invention is 9 in the drive motor of 30,000 RPM and the rotor blades and the commutator piece 24 as shown in Figure 6, the vibration band of the drive motor 50 is 30,000 RPM / 60 seconds = 500Hz The noise of the rotor blade is 500 times / sec × 9 (the number of wings) = 4.5 kHz, and the noise of commutator piece is 500 times / sec × 24 (the number of wings) = 12 kHz, which is about 2 dB lower than the conventional one. Can be.

본 발명 진공청소기의 공기유로구조는, 구동모터에서 발생되어 전면으로 전달되는 진동은 회전날개보호판과 흡기안내구 사이에 체결된 완충구에서 흡수되고, 구동모터의 후부쪽으로 전달되는 진동은 모터지지구에 의하여 흡수·완충되며, 상기 완충구를 통과한 잔류진동은 흡기안내구에 체결되는 방진구에서 흡수되고, 외부공기 흡입시 발생되었던 소음은 회전날개보호판에 체결되는 흡기안내구의 형상이 중심부가 오목한 함입면을 따라 흡입되므로 저감되며, 구동모터에서 발생되는 소음은 구동모터의 외부에 체결되는 배기안내구에서 흡수·차단되고, 상기 배기안내구를 통과한 소음은 배기유도구와 몸체흡음제에 의하여 흡수되므로 잔류소음이 차단되는 효과가 있다.The air flow path structure of the vacuum cleaner of the present invention, the vibration generated in the drive motor is transmitted to the front is absorbed in the buffer port fastened between the rotor blade cover and the intake guide, the vibration transmitted to the rear of the drive motor is a motor support It is absorbed and buffered by, the residual vibration passing through the buffer port is absorbed in the dustproof port fastened to the intake guide, and the noise generated when the outside air is sucked in the shape of the intake guide which is fastened to the rotary blade protection plate is concave in the center Since it is sucked along the indentation surface, the noise generated from the driving motor is absorbed and blocked by the exhaust guide which is fastened to the outside of the drive motor, and the noise passing through the exhaust guide is absorbed by the exhaust oil tool and the body absorbent. Residual noise is cut off.

Claims (4)

통상 앞쪽에 흡입구와 연통되게 집진실이 형성되고 뒤쪽에 상기 집진실과 연통되게 공간이 형성되어 상기 공간에 구동모터가 장착되는 본체와, 상기 본체의 집진실과 뒤쪽 공간 사이의 통로 외곽부에 동심원상으로 부착되는 방진구와, 상기 방진구 내주면에 외주연이 끼워지고 중심부가 후방으로 함입되며 통공 가능하게 형성되는 흡기안내구와, 상기 흡기안내구의 후단부와 상기 구동모터 선단의 회전날개보호판 사이에 장착되는 완충구와, 상기 구동모터의 외곽부와 소정 간격을 두고 선단이 상기 흡기안내구와 연통되게 결합되어 후방으로 유로를 형성하는 배기안내구와, 상기 흡기안내구의 후단에 중심부가 상기 유로가 연통되도록 결합되고 외곽부가 본체의 뒤쪽 공간내에서 전방쪽으로 절곡 연장되어 상기 배기안내구의 유로를 연장시키는 배기유도구와, 상기 본체 뒤쪽 공간의 내벽면에 부착되는 흡음재로 구성됨을 특징으로 하는 진공청소기의 공기유로구조.In general, a dust collecting chamber is formed to communicate with the suction port at the front side, and a space is formed at the rear to communicate with the dust collecting chamber, and a concentric circle is formed in the outer space of the passage between the main body and the dust collecting chamber and the rear space of the main body. It is mounted between the dust-proof port is attached to the upper, the intake guide is formed in the inner circumferential surface of the dust-proof opening, the center is recessed to the rear, and is formed through the air, the rear end of the intake guide and the rotary blade protection plate of the drive motor tip A buffer port to be connected with the outer portion of the driving motor at a predetermined distance, and an exhaust guide port coupled to the intake guide to communicate with the intake guide to form a flow path at the rear, and a central portion is coupled to the rear end of the intake guide to communicate with the flow path. The outer portion is bent forward in the rear space of the main body to extend the flow path of the exhaust guide Induction sphere and the air path structure for a vacuum cleaner, characterized by consisting of a sound absorbing material attached to an inner wall surface of the main body behind the space. 제1항에 있어서, 완충구는 내부에 중공부를 형성하여 구동모터에서 발생되는 진동이 흡수되도록 하는 것을 특징으로 하는 전공청소기의 공기유로구조.The air flow path structure of the electric vacuum cleaner as claimed in claim 1, wherein the buffer port has a hollow portion formed therein to absorb vibrations generated from the driving motor. 제1항에 있어서, 배기안내구는 내벽면에 내벽면에 별도의 배기흡음재를 부착하여 구동모터를 경유한 공기유로가 통과되도록 하는 것을 특징으로 하는 진공청소기의 공기유로구조.The air flow passage structure of the vacuum cleaner of claim 1, wherein the exhaust guide tool attaches a separate exhaust sound absorbing material to the inner wall surface to allow the air flow passage through the driving motor to pass therethrough. 제1항에 있어서, 배기유도구는 구동모터의 후부를 지지하도록 부가되는 모터지지구를 체결하여 구동모터가 안정적으로 지지되도록 하는 것을 특징으로 하는 공기유로구조.2. The air flow path structure according to claim 1, wherein the exhaust oil tool fastens the motor support added to support the rear portion of the drive motor to stably support the drive motor.
KR1019970048258A 1997-09-23 1997-09-23 Structure of air flow for vacuum cleaner Expired - Fee Related KR100233513B1 (en)

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KR1019970048258A KR100233513B1 (en) 1997-09-23 1997-09-23 Structure of air flow for vacuum cleaner
DE19843719A DE19843719A1 (en) 1997-09-23 1998-09-23 Cylinder vacuum cleaner for domestic use

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