KR0128536B1 - Device for decreasing the noise of vacuum cleaner - Google Patents

Device for decreasing the noise of vacuum cleaner

Info

Publication number
KR0128536B1
KR0128536B1 KR1019950035108A KR19950035108A KR0128536B1 KR 0128536 B1 KR0128536 B1 KR 0128536B1 KR 1019950035108 A KR1019950035108 A KR 1019950035108A KR 19950035108 A KR19950035108 A KR 19950035108A KR 0128536 B1 KR0128536 B1 KR 0128536B1
Authority
KR
South Korea
Prior art keywords
noise
automatic valve
motor
exhaust port
case
Prior art date
Application number
KR1019950035108A
Other languages
Korean (ko)
Other versions
KR970019999A (en
Inventor
천무갑
Original Assignee
구자홍
엘지전자주식회사
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019950035108A priority Critical patent/KR0128536B1/en
Publication of KR970019999A publication Critical patent/KR970019999A/en
Application granted granted Critical
Publication of KR0128536B1 publication Critical patent/KR0128536B1/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/0081Means for exhaust-air diffusion; Means for sound or vibration damping
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/22Mountings for motor fan assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Electric Suction Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A noise suppression device for vacuum cleaners is provided for efficiently reducing the noise from the cleaner my maintaining appropriate exhaust area depending on the noise and suction power due to RPM variation of the motor. The device comprises a motor (103) within a motor case (102) intaking air; a dust collector (100); a motor case exhaust port (104) and an automatic valve case (105) receiving air; an automatic valve case exhaust port (108) of which the area is preset as optimum depending on minimum power and noise; an automatic valve (106) being compressed by the faster flowing air; and an main body exhaust port (109) exhausting the air from the automatic valve case exhaust port (108).

Description

진공청소기의 소음저감장치Noise reduction device of vacuum cleaner

제1도는 종래 진공청소기의 내부 구성도.1 is a block diagram of a conventional vacuum cleaner.

제2도는 본 발명 진공청소기의 내부 구성도.2 is an internal configuration diagram of the vacuum cleaner of the present invention.

제3도는 본 발명의 자동 밸브장치로서, (가)는 팽창시 상태도, (나)는 압축시 상태도.3 is an automatic valve device of the present invention, (a) is a state during expansion, (b) is a state during compression.

제4도는 본 발명의 배기면적에 따른 상관도로서, (가)는 배기면적과 소음의 관계도, (나)는 배기면적과 흡입일률의 관계도.4 is a correlation diagram according to the exhaust area of the present invention, (a) is a relationship between exhaust area and noise, and (b) is a relationship between exhaust area and suction power.

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

101 : 본체 102 : 모터케이스101: main body 102: motor case

103 : 모터 104 : 모터케이스 배기구103: motor 104: motor case exhaust port

105 : 자동밸브 케이스 106 : 자동밸브105: automatic valve case 106: automatic valve

107 : 스프링 108 : 자동밸브 케이스 배기구107: spring 108: automatic valve case exhaust port

109 : 배기구109: exhaust port

본 발명은 진공청소기의 소음저감장치에 관한 것으로서 특히 청소기 본체의 배기소음을 저감하기 위해 모터케이스를 통해 빠져나오는 유체의 힘에 대해 자동밸브장치가 압축, 팽창함으로서 최적의 배기면적을 형성하도록 하여 배기소음을 저감하도록 한 것이다.The present invention relates to a noise reduction device of a vacuum cleaner, and in particular, to reduce the exhaust noise of a cleaner body, the automatic valve device compresses and expands with respect to the force of a fluid flowing out through a motor case to form an optimal exhaust area. It is to reduce the noise.

종래 진공청소기는 제1도에 도시된 바와 같이 청소기본체(1)와, 상기 본체(1) 내부에 먼지를 집진하는 먼지 집진실(2)과, 상기 집진실(2)을 통과한 먼지를 길러주는 먼지필터(3)와, 구동원인 팬모터(4)를 감싸고 있는 모터케이스(5)와, 상기 모터케이스(5)와 본체(1) 후면에는 각각 배기구(6)가 구성되었다.As shown in FIG. 1, a conventional vacuum cleaner raises dust passing through the cleaning main body 1, the dust collecting chamber 2 for collecting dust inside the main body 1, and the dust collecting chamber 2; The main dust filter 3, the motor case 5 surrounding the fan motor 4 as a driving source, and the exhaust port 6 were respectively formed on the motor case 5 and the main body 1 rear surface.

도면중 미설명 부호 8은 모터패킹을 나타낸다.In the figure, reference numeral 8 denotes a motor packing.

종래 기술의 동작은 본체 내부에 장착된 팬모터(4)의 회전에 의해 흡입력이 발생하게 되면 이때 각종 오물이 흡입구를 통해 먼지 집진실(2)에 집진되고 공기는 모터케이스(5)의 전면에 형성된 먼지필터(3)를 통해 팬모터(4)를 지나 상기 모터케이스(5)와 본체(1) 후면에 형성된 배기구(6)를 통해 대기중으로 빠져나가게 된다.When the suction force is generated by the rotation of the fan motor 4 mounted inside the main body, various dirts are collected in the dust collecting chamber 2 through the suction port, and air is supplied to the front of the motor case 5. It passes through the fan motor 4 through the formed dust filter 3 and exits into the atmosphere through the exhaust port 6 formed at the rear of the motor case 5 and the main body 1.

제1도에서 보면 모터케이스배기구(6) 및 배기구(7)는 모터의 회전량(RPM)의 변화에 따른 유속 및 유량의 변화에 대해 항상 일정한 배기구 면적을 갖고 있다.As shown in FIG. 1, the motor case exhaust port 6 and the exhaust port 7 always have a constant exhaust port area with respect to the change of the flow rate and the flow rate according to the change of the rotation amount RPM of the motor.

즉, 전체배기구 면적은 모터케이스배기구(6) 면적과 본체의 배기구 면적의 합으로 얻어지는데 청소기 본체의 소음중에서 유체의 배기소음이 큰 영향을 미치고 있다. 배기소음에 큰 영향을 끼치는 요인은 배기구의 면적, 배기구의 위치, 배기의 균등배분등으로 구분지을 수 있는데 종래에는 유량, 유속에 관계없이 항상 일정한 배기면적을 갖고 있으므로 모터의 흡입력이 변했을 때 적정배기면적을 갖지 못해 배기소음이 증가되는 문제점이 있었다.That is, the total exhaust area is obtained by the sum of the area of the motor case exhaust port 6 and the exhaust port area of the main body, and the exhaust noise of the fluid has a great influence in the noise of the cleaner main body. Factors that have a great influence on exhaust noise can be divided into the area of the exhaust port, the position of the exhaust port, and the equal distribution of the exhaust gas. There was a problem that the exhaust noise is increased because it has no area.

즉, 알피엠(RPM)이 높을때 적정배기면적을 맞추었다 하더라도 알피엠이 점점 낮아졌을 때는 그때의 적정배기 면적때 보다 소음이 증가하게 되기 때문이다.That is, even if the proper exhaust area is set when the RPM is high, the noise increases when the RMP is gradually lowered than when the appropriate exhaust area is increased.

본 발명은 이러한 점을 감안하여 모터케이스와 체결가능한 자동밸브케이스와, 상기 자동밸브케이스에 장착되어 유체의 힙에 의해 압축, 팽창하는 자동밸브와, 상기 자동밸브를 탄성력으로 지지하는 탄성부재와, 상기 자동밸브의 유동에 의해 통과하는 유체의 양이 변화하는 자동밸브 배기구를 구성함으로써, 모터 알피엠의 변화에 의한 소음 및 흡입입률에 따라 적절한 배기면적을 유지하여 청소기 본체에서 발생하는 소음을 효율적으로 저감시켜줄 수 있도록 하는데 목적이 있다.In view of the above, the present invention provides an automatic valve case capable of fastening with a motor case, an automatic valve mounted on the automatic valve case, compressed and expanded by a heap of fluid, an elastic member supporting the automatic valve with elastic force, By configuring an automatic valve exhaust port in which the amount of fluid passing by the flow of the automatic valve is changed, the noise generated by the cleaner body is effectively reduced by maintaining an appropriate exhaust area according to the noise and the suction inlet rate caused by the change of the motor ALPM. The purpose is to make it possible.

본 발명을 제2도 내지 제4도에 의하여 설명한다.The invention is illustrated by FIGS. 2 to 4.

먼저 구성을 살펴보면 본체(101)내부에는 먼지 집진실(100)과 모터케이스(102)가 형성되고, 상기 모터케이스(102) 내부에는 모터(103)가 장착되고 상기 모터케이스(102)의 후면에는 모터케이스배기구(104)가 형성되었으며 상기 모터케이스(102)와 체결가능한 밸브케이스(105)에는 자동밸브(106)가 구성되게 된다. 또한 상기 자동밸브(106)에는 스프링(107)이 부착되어 밸브케이스(105)에 연결됨으로 구성되었다.Looking at the configuration first, the dust collecting chamber 100 and the motor case 102 is formed inside the main body 101, the motor 103 is mounted inside the motor case 102, the rear of the motor case 102 The motor case exhaust port 104 is formed, and the automatic valve 106 is configured in the valve case 105 which can be fastened to the motor case 102. In addition, the automatic valve 106 has a spring 107 is attached to the valve case 105 was configured.

도면 중 미설명 부호 108은 자동밸브케이스 배기구이고 109는 본체배기구를 나타낸다.In the figure, reference numeral 108 denotes an automatic valve case exhaust port, and 109 denotes a main body exhaust port.

이와 같은 구성된 본 발명의 동작은 모터케이스(102) 내부에 장착된 모터(103)의 회전에 의해 흡입력이 발생하면 흡입된 오물은 먼지집진실(100)에 집진되고 유체는 모터(103)를 통고하여 모터케이스배기구(104)를 지나 자동밸브케이스(105)로 유입된다.According to the operation of the present invention configured as described above, when suction power is generated by the rotation of the motor 103 mounted inside the motor case 102, the sucked dirt is collected in the dust collecting chamber 100 and the fluid is notified through the motor 103. Then, it passes through the motor case exhaust port 104 and flows into the automatic valve case 105.

이때 모터의 최저 알피엠 동작시는 자동밸브케이스(105)에 설치된 자동밸브(106)에 힘이 가해지더라도 압축되지 않고 팽창된 상태를 그대로 유지하며 자동밸브케이스 배기구(108)의 면적은 최저 알피엠에 따른 흡입일률 및 소음에 가장 적절한 면적으로 초기에 설정되어져 있다.At this time, when the motor operates at the lowest ALPM, even if a force is applied to the automatic valve 106 installed at the automatic valve case 105, the compressed valve is maintained in an expanded state without being compressed and the area of the automatic valve case exhaust port 108 is set according to the minimum ALPM. The area that is most appropriate for the suction power and noise is initially set.

그리고 모터(103)가 최대 알피엠으로 회전할시는 모터의 흡입력의 증가로 모터를 빠져나오는 유체는 급속히 빨라지고 유량도 증가하게 되며 따라서 자동밸브(106)를 미는 힘이 커지게 되어 자동밸브(106)가 압축되고 최대 알피엠에 적합한 자동밸브케이스 배기구(108)의 면적을 유지하게 되며 자동밸브케이스 배기구(108)를 빠져나온 유체는 본체에 형성된 배기구(109)를 통해 대기중으로 배출된다.In addition, when the motor 103 rotates at the maximum ALPM, the fluid exiting the motor is rapidly increased and the flow rate is also increased due to the increase of the suction force of the motor, so that the force pushing the automatic valve 106 is increased, thereby increasing the automatic valve 106. Is compressed and maintains the area of the automatic valve case exhaust port 108 suitable for the maximum ALPM, and the fluid exiting the automatic valve case exhaust port 108 is discharged into the atmosphere through the exhaust port 109 formed in the main body.

제4도는 배기면적에 대한 소음 및 그때의 흡입일률과의 관계를 나타내고 있는데 (가)에서 소음은 배기면적이 작을 때는 모터에 부하가 많이 걸리게 되어 모터에서 발생하는 소음이 증가되어 전체소음이 높게 나타내고 배기면적이 최적배기면적보다 클 때는 배기구 면적이 커질수록 소음이 높게 나타나고 있는데 이런 현상은 모터 알피엠에 따라 거의 동일하게 나타나지만 그때의 최적백면적은 A, B와 같이 서로 다름이 알 수 있다.4 shows the relationship between the noise on the exhaust area and the suction work rate at that time. In (a), when the exhaust area is small, the load on the motor is increased and the noise generated by the motor increases, resulting in high overall noise. When the exhaust area is larger than the optimal exhaust area, the noise increases as the area of the exhaust port is larger. This phenomenon appears almost the same according to the motor ALPM, but the optimum white areas are different from each other like A and B.

즉, 최저 알피엠(L)에서 최대 알피엠(L')에 적합한 배기면적을 사용할 때는 소음이 증가되고 반대의 경우도 동일한 결과를 나타내게 된다.In other words, when the exhaust area suitable for the maximum AlpM (L ') at the lowest Alp (L) is used, the noise is increased and vice versa.

제4도의 (나)에서 배기면적이 증가할수록 최적 배기면적 미만에서는 거의 선형적으로 증가하지만 최적배기 이후부터는 배기면적이 흡입일률의 증가요인으로 작용하지 못함을 나타내고 있다.In FIG. 4B, as the exhaust area is increased, the exhaust area is increased almost linearly below the optimum exhaust area, but after the optimum exhaust, the exhaust area does not act as an increase factor of the suction power.

이상에서 살펴본 바와 같은 본 발명은 청소기 모터의 알피엠에 따라 흡입일률 및 저소음을 만족할 수 있도록 자동밸브가 적정 배기구 면적을 유지시킴으로서 청소기의 유체소음을 저감시킬 수 있는 발명이다.The present invention as described above is an invention that can reduce the fluid noise of the vacuum cleaner by maintaining an appropriate exhaust port area to satisfy the suction power and low noise in accordance with the ALPM of the cleaner motor.

Claims (1)

모터케이스의 후면에 체결가능한 밸브케이스와, 상기 밸브케이스에 장착되어 유체의 힙에 의해 압축, 팽창하는 자동밸브와, 상기 자동밸브를 탄성력으로 지지하는 탄성부재와, 상기 자동밸브의 유동에 의해 통과하는 유체의 양이 변화하는 자동밸브 배기구를 구비한 것을 특징으로 하는 진공청소기의 소음저감장치.A valve case that can be fastened to the rear of the motor case, an automatic valve mounted on the valve case, compressed and expanded by a heap of fluid, an elastic member supporting the automatic valve with elastic force, and a flow through the automatic valve Noise reduction device for a vacuum cleaner, characterized in that it comprises an automatic valve exhaust port for changing the amount of fluid to be.
KR1019950035108A 1995-10-12 1995-10-12 Device for decreasing the noise of vacuum cleaner KR0128536B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950035108A KR0128536B1 (en) 1995-10-12 1995-10-12 Device for decreasing the noise of vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950035108A KR0128536B1 (en) 1995-10-12 1995-10-12 Device for decreasing the noise of vacuum cleaner

Publications (2)

Publication Number Publication Date
KR970019999A KR970019999A (en) 1997-05-28
KR0128536B1 true KR0128536B1 (en) 1998-04-06

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KR1019950035108A KR0128536B1 (en) 1995-10-12 1995-10-12 Device for decreasing the noise of vacuum cleaner

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