KR970000580B1 - Vacuum cleaner motor - Google Patents

Vacuum cleaner motor Download PDF

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Publication number
KR970000580B1
KR970000580B1 KR1019950000252A KR19950000252A KR970000580B1 KR 970000580 B1 KR970000580 B1 KR 970000580B1 KR 1019950000252 A KR1019950000252 A KR 1019950000252A KR 19950000252 A KR19950000252 A KR 19950000252A KR 970000580 B1 KR970000580 B1 KR 970000580B1
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KR
South Korea
Prior art keywords
impeller
air
vacuum cleaner
electric motor
groove
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Application number
KR1019950000252A
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Korean (ko)
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KR960028873A (en
Inventor
김동수
Original Assignee
엘지전자 주식회사
구자홍
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Priority to KR1019950000252A priority Critical patent/KR970000580B1/en
Publication of KR960028873A publication Critical patent/KR960028873A/en
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Publication of KR970000580B1 publication Critical patent/KR970000580B1/en

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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
    • A47L9/22—Mountings for motor fan assemblies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electric Suction Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The air sucked in the hiatus between the upper and lower blades(42,44) of the impeller(40), rotates along the flow of the air induction membrane(46) which is curved toward the running direction of the impeller, producing a vortex flow. The air rotating along the flow of the air induction membrane will be stopped at the projection(46a), so the air will be stored and inflated inside the groove(44a). After which, the air inflated in the groove(44a) by the continuous rotation of the impeller(40) and rotated promoted by the air induction membrane(46), sucked in will be accelerated by the projection(46a), and as the high pressure air is sucked in the electric motor, the suction power of the electric motor will be sequentially increased.

Description

진공청소기용 전동기Electric motor for vacuum cleaner

제1도는 종래의 진공청소기용 전동기의 구성을 나타내는 단면도.1 is a cross-sectional view showing the configuration of a conventional vacuum cleaner electric motor.

제2도는 종래의 진공청소기용 전동기에 적용된 임펠러 사시도.2 is a perspective view of an impeller applied to a conventional vacuum cleaner electric motor.

제3도는 제2도의 분해단면도.3 is an exploded cross-sectional view of FIG.

제4도는 본 발명에 따른 진공청소기용 전동기의 구성을 나타내는 단면도.4 is a cross-sectional view showing the configuration of a vacuum cleaner electric motor according to the present invention.

제5도는 본 발명에 따른 진공청소기용 전동기에 적용된 임펠러 사시도.5 is a perspective view of an impeller applied to a motor for a vacuum cleaner according to the present invention.

제6도는 제5도의 분해단면도.6 is an exploded cross-sectional view of FIG.

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

20 : 회전축 40 : 임펠러20: rotating shaft 40: impeller

42 : 상판 44 : 하판42: upper plate 44: lower plate

44a : 홈 46 : 공기유도막44a: groove 46: air induction film

46a : 도출부 50 : 임펠러커버46a: drawer 50: impeller cover

50a : 임펠러커버홈50a: Impeller cover groove

본 발명은 진공청소기용 전동기에 관한 것으로서, 더욱 상세하게는 회전되어 공기를 흡입하는 임펠러의 구성을 변형시켜 임펠러의 동일 회전수에 대해 흡입력이 극대화되는 진공청소기용 전동기에 관한 것이다.The present invention relates to a vacuum cleaner electric motor, and more particularly, to a vacuum cleaner electric motor in which a suction force is maximized for the same rotational speed of the impeller by modifying the configuration of the impeller rotated to suck air.

일반적으로 진공청소기는 전동기의 회전축에 장착된 임펠러를 고속으로 회전시키면 청소기 내부의 공기는 기기밖으로 배출되어 내부의 기압이 대기압보다 낮게되기 때문에 흡입력을 일으켜서 흡입구 주변의 공기는 먼지등 이물질과 함께 청소기 내부로 빨려 들어가 이물질은 집진봉지에 모아 제거되고 정화된 공기는 대기중으로 배출됨으로써 청소를 행하게 된다.Generally, when the vacuum cleaner rotates the impeller mounted on the rotating shaft of the motor at high speed, the air inside the cleaner is discharged out of the device, and the air pressure inside the cleaner is lower than atmospheric pressure, causing the suction force. The foreign matter is sucked into the dust collecting bag and removed, and the purified air is discharged into the atmosphere for cleaning.

제1도는 종래 진공청소기용 전동기의 구성을 나타내는 단면도이고, 제2도는 종래 진공청소기용 전동기에 적용된 임펠러 사시도이며, 제3도는 제2도의 분해단면도이다.1 is a cross-sectional view showing the structure of a conventional vacuum cleaner electric motor, FIG. 2 is a perspective view of an impeller applied to a conventional vacuum cleaner electric motor, and FIG. 3 is an exploded cross-sectional view of FIG.

제1도 내지 제3도를 참조하면 종래 진공청소기용 전동기는 구동수단을 갖는 회전축(20)이 하우징(30)내에 안착되며, 하우징(30)에 하우징커버(32)가 나사체결되어 전동기내부를 이루고, 하우징커버(32)에 돌출된 회전축(20) 단부에는 임펠러(10)가 압입되고 고정수단에 의해 결합되는 것이다.Referring to FIGS. 1 to 3, in the conventional vacuum cleaner electric motor, a rotating shaft 20 having a driving means is seated in the housing 30, and a housing cover 32 is screwed into the housing 30 so that the inside of the motor can be screwed. The impeller 10 is press-fitted to the end of the rotation shaft 20 protruding from the housing cover 32 and coupled by the fixing means.

상기 임펠러(10)는 임펠러커버(18)로 보호되는 것으로서, 회전축(20)에 압입되도록 중앙부가 통공된 원판형상의 임펠러상판(12)과 회전축(20)에 압입되도록 중앙부가 통공되며 통공의 주연부가 외측으로 완만히 경사각을 이룬 원형상의 임펠러 하판(14)이 임펠러(10)회전방향으로 곡률된 복수개의 공기유도막(16)에 의해 연결된 구성을 갖는 것이다.The impeller 10 is to be protected by the impeller cover 18, the central portion of the disk-shaped impeller upper plate 12 and the rotating shaft 20 through which the center portion is press-fitted to the rotating shaft 20 through the central portion through the periphery of the through hole The circular impeller lower plate 14 of which the inclination forms the slanted angle to the outer side has the structure connected by the some air induction film 16 curvature by the impeller 10 rotation direction.

이와 같이 구성된 진공청소기용 전동기는 구동수단에 의해 회전축(20)이 회전되고 이에 따라 회전축(20)의 단부에 고정된 임펠러(10)가 회전됨으로써 기압차에 의해 흡입력이 발생되어 공기가 임펠러커버(18)의 흡입구를 통해 흡입되어 제1도에 실선으로 도시된 바와 같이 임펠러 상·하판(12)(14) 사이를 지나 전동기내부를 통과하여 하우징(30)에 다수 형성된 통풍구로 배출되는 것이다.The motor for a vacuum cleaner configured as described above rotates the rotating shaft 20 by the driving means, and thus the impeller 10 fixed to the end of the rotating shaft 20 is rotated so that suction force is generated by the air pressure difference, and the air is impeller cover ( 18 is sucked through the inlet port, and as shown by the solid line in FIG. 1, the impeller is passed through the upper and lower plates 12 and 14 and passes through the inside of the motor to be discharged to the plurality of ventilation holes formed in the housing 30.

상기에 있어 임펠러 상·하판(12)(14)사이를 통과하는 공기는 임펠러 상·하판(12)(14)의 공간에 의해 압축되고 공기유도막(16)에 의해 선회, 가속되면서 빠져나가게 되는 것이다.In the above, the air passing between the upper and lower plates 12 and 14 of the impeller is compressed by the space of the upper and lower plates 12 and 14 of the impeller, and is released by being rotated and accelerated by the air induction film 16. will be.

그러나, 공기유도막(16) 및 임펠러 상·하판(12)(14)의 공기의 가속 및 압축이 1회에 한해서만 행해지게 되어 임펠러(10)의 회전수에 대해 공기의 흡입력을 극대화하지 못함으로써 입자가 큰 이물질을 흡입제거하지 못하는 문제점이 있었다.However, the acceleration and compression of the air of the air induction film 16 and the impeller upper and lower plates 12 and 14 is performed only once, and thus the suction force of the air cannot be maximized with respect to the rotational speed of the impeller 10. There was a problem that the particles can not be suctioned off large foreign matter.

따라서, 본 발명은 상기한 문제점을 해결하기 위하여 창출한 것으로서, 본 발명의 목적은 회전되어 공기를 흡입하는 임펠러의 구성을 변형시켜 임펠러의 동일 회전수에 대해 흡입력이 극대화되는 진공청소기용 전동기를 제공하는데 있다.Accordingly, the present invention has been made in order to solve the above problems, an object of the present invention is to modify the configuration of the impeller to suck the air rotated to provide a vacuum cleaner electric motor that maximizes the suction force for the same rotational speed of the impeller It is.

이와 같은 목적을 실현하기 위한 본 발명에 의한 진공청소기용 전동기는 회전축에 삽입되도록 중앙이 통공된 상판과 회전축에 삽입되도록 중앙이 통공되며, 통공의 주연부에 공기가 저장되는 홈이 형성된 하판과, 상기 상판과 하판 사이에 개재되어 상판과 하판을 연결하는 복수개의 공기유도막으로 구성된 임펠러를 특징으로 한다.The vacuum cleaner electric motor according to the present invention for realizing the above object is the upper plate through which the center is perforated to be inserted into the rotating shaft and the lower plate through which the center is perforated to be inserted into the rotating shaft, and the air is stored in the periphery of the through hole; It is characterized by an impeller interposed between the upper plate and the lower plate consisting of a plurality of air induction film connecting the upper plate and the lower plate.

이하, 첨부된 도면 제4도 내지 제6도를 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 4 to 6.

도면중 부호 40은 구동수단을 갖는 회전축(20)에 삽입장착되도록 중앙부가 통공된 임펠러(40)로서, 상기 임펠러(40)는 원판형상의 상판(42)과 유입된 공기가 저장, 팽창되도록 통공의 주연부에 반원형상의 홈(44a)이 둘러형성된 하판(44)과, 상·하판(42)(44)사이에 개재되어 상·하판(42)(44)을 연결하는 복수개의 공기유도막(46)으로 구성된 것이다.In the drawing, reference numeral 40 denotes an impeller 40 through which a central part is perforated so as to be inserted into and mounted on a rotating shaft 20 having a driving means. The impeller 40 has a disc-shaped upper plate 42 and through-holes for storing and expanding the introduced air. A plurality of air induction films 46 interposed between the lower plate 44 having semicircular grooves 44a formed at the periphery of the upper plate, and the upper and lower plates 42 and 44 interposed between the upper and lower plates 42 and 44. ).

상기에 있어 공기유도막(46)은 임펠러(40)의 회전방향에 대해 곡률된 반타원 형상으로서 하판(44)에 부착되는 부위에는 하판(44)의 홈(44a) 내부에 삽입되어 흡입된 공기를 차폐, 가속화 하는 돌출부(46a)가 형성된 것이다.In the above, the air induction film 46 is a semi-ellipse shape that is curvature with respect to the rotational direction of the impeller 40 and is inserted into the groove 44a of the lower plate 44 at the portion attached to the lower plate 44 and sucked air. Protruding portion 46a for shielding and accelerating is formed.

또한, 임펠러(40) 보호하는 임펠러 커버(50)에는 하판(44)에 형성된 홈(44a)의 대응위치에 동일형상으로 임펠러커버홈(50a)이 형성된 것이다.In addition, the impeller cover 50 to protect the impeller 40 is formed with the impeller cover groove 50a in the same shape at the corresponding position of the groove 44a formed in the lower plate 44.

이와 같이 구성된 본 발명의 진공청소기용 전동기의 작용효과를 설명하면 다음과 같다.Referring to the effect of the vacuum cleaner electric motor of the present invention configured as described above are as follows.

제4도를 참조하면, 회전축(20)의 구동에 의해 회전되는 임펠러(40)의 기압차에 의해 흡입력이 발생되어 임펠러커버(50)에 형성된 흡입구를 통해 공기가 흡입되어 임펠러(40)의 상·하판(42)(44)사이를 지나 전동기내부를 통해 하우징(30)에 형성된 통풍구로 배출되는 것이다.Referring to FIG. 4, the suction force is generated by the pressure difference of the impeller 40 rotated by the driving of the rotating shaft 20, and the air is sucked through the suction port formed in the impeller cover 50, thereby causing the image of the impeller 40 to rise. It passes through the lower plates 42 and 44 and is discharged to the vent formed in the housing 30 through the inside of the motor.

상기의 임펠러(40) 상·하판(42)(44) 사이를 지나는 공기의 흐름에 대해 도면 제5도와 제6도를 참조하여 상세히 설명한다.The flow of air passing between the upper and lower plates 42 and 44 of the impeller 40 will be described in detail with reference to FIG. 5 and FIG. 6.

임펠러(40)의 상·하판(42)(44)사이로 흡입된 공기는 임펠러(40)의 회전방향으로 곡률된 공기유도막(46)의 흐름을 타고 선회되어 와류가 발생되는 것이다.The air sucked between the upper and lower plates 42 and 44 of the impeller 40 is swiveled through the flow of the air induction film 46 curvature in the rotational direction of the impeller 40 to generate vortices.

이때 하판(44)에 형성된 홈(44a)내부에는 공기유도막(46)에 돌출형성된 돌출부(46a)가 삽입됨으로써 공기 유도막(46)의 흐름을 타고 선회되는 공기가 일순 돌출부(46a)에 차폐되어 홈(44a) 내부에 저장, 팽창되는 것이다.At this time, the inside of the groove 44a formed in the lower plate 44 is inserted into the protrusion 46a protruding from the air induction film 46, so that the air that is swirled by the flow of the air induction film 46 is shielded by the one-way protrusion 46a. And is stored and expanded in the groove 44a.

이후 임펠러(40)의 지속적인 회전에 의해 홈(44a)내부에 팽창된 공기와 흡입되어 공기유도막(46)에 의해 선회되는 공기가 돌출부(46a)에 의해 가속화 되어 고압의 공기가 전동기내로 흡입됨으로써 순차적으로 전동기의 흡입력이 증대되는 것이다.Thereafter, the air inflated into the groove 44a by the continuous rotation of the impeller 40 is sucked by the air induction film 46, and the air is accelerated by the protrusion 46a, so that the high pressure air is sucked into the electric motor. The suction power of the electric motor is sequentially increased.

한편, 임펠러커버(50)에는 임펠러(40)의 하판(44)에 형성된 홈(44a)의 대응위치에 상기 홈(44a)과 동일형상으로 임펠러 커버홈(50a)이 형성됨으로써 임펠러(40) 회전시 홈(44a)부위가 임펠러커버(50)에 접촉됨이 방지되는 것이다.On the other hand, the impeller cover 50 rotates the impeller 40 by forming the impeller cover groove 50a in the same shape as the groove 44a at a corresponding position of the groove 44a formed in the lower plate 44 of the impeller 40. Sea groove 44a is to prevent the contact with the impeller cover (50).

상술한 바와 같이 본 발명에 의한 진공청소기용 전동기는 회전되어 공기를 흡입하는 임펠러의 구성을 변형시켜 임펠러의 동일회전수에 대해 흡입력이 극대화 됨으로써 원가추가 및 전력손실 없이 성능 및 신뢰성이 향상되는 유용한 발명이다.As described above, the electric motor for the vacuum cleaner according to the present invention is rotated to modify the configuration of the impeller that sucks air, thereby maximizing the suction power at the same rotational speed of the impeller, thereby improving the performance and reliability without cost and power loss. to be.

Claims (2)

회전축에 삽입되도록 중앙이 통공된 상판과, 회전축에 삽입되도록 중앙이 통공되며, 통공의 주연부에 공기가 저장되는 홈이 형성된 하판과, 상기 상판과 하판 사이에 개재되어 상판과 하판을 연결하는 복수개의 공기유도막으로 구성된 임펠러를 특징으로 하는 진공청소기용 전동기.A top plate having a central hole through which the center is inserted into the rotary shaft, a bottom plate having a center through which the central hole is inserted into the rotary shaft, and having a groove for storing air at the periphery of the through hole, and a plurality of top plates interposed between the top and bottom plates to connect the top plate and the bottom plate. An electric motor for vacuum cleaners, comprising an impeller composed of an air induction film. 제1항에 있어서, 상기 공기유도막은 임펠러의 회전방향에 대해 곡률된 것으로서, 일측에는 하판에 형성된 홈 내부에 삽입되어 흡입된 공기를 차폐, 가속화 하기 위한 돌출부가 형성된 것을 특징으로 하는 진공청소기용 전동기.According to claim 1, wherein the air induction film is curvature with respect to the rotation direction of the impeller, one side is inserted into the groove formed in the lower plate protruding portion for the vacuum cleaner, characterized in that the projection formed for shielding, accelerated air .
KR1019950000252A 1995-01-09 1995-01-09 Vacuum cleaner motor KR970000580B1 (en)

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