KR100466319B1 - Vacuum cleaner indicating the state of the input voltage - Google Patents

Vacuum cleaner indicating the state of the input voltage Download PDF

Info

Publication number
KR100466319B1
KR100466319B1 KR10-2002-0020857A KR20020020857A KR100466319B1 KR 100466319 B1 KR100466319 B1 KR 100466319B1 KR 20020020857 A KR20020020857 A KR 20020020857A KR 100466319 B1 KR100466319 B1 KR 100466319B1
Authority
KR
South Korea
Prior art keywords
input voltage
vacuum cleaner
voltage
input
control unit
Prior art date
Application number
KR10-2002-0020857A
Other languages
Korean (ko)
Other versions
KR20030082222A (en
Inventor
오장근
Original Assignee
삼성광주전자 주식회사
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
Publication date
Application filed by 삼성광주전자 주식회사 filed Critical 삼성광주전자 주식회사
Priority to KR10-2002-0020857A priority Critical patent/KR100466319B1/en
Priority to RU2002120961/12A priority patent/RU2257131C2/en
Publication of KR20030082222A publication Critical patent/KR20030082222A/en
Application granted granted Critical
Publication of KR100466319B1 publication Critical patent/KR100466319B1/en

Links

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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/2805—Parameters or conditions being sensed
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/30—Arrangement of illuminating devices
    • 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)
  • Electric Vacuum Cleaner (AREA)

Abstract

전압표시기능을 구비한 진공청소기가 개시된다. 이러한 진공청소기는 발광부 및 제어부를 구비한다. 발광부는 진공청소기의 본체 외부에 설치되며, 입력 전압별로 구획되어 입력전압에 따라서 서로 다르게 발광하는 복수개의 LED를 구비한다. 또한 제어부는 미리 설정되어 있는 복수개의 기준 전압과 입력전압을 비교하여, 입력전압이 속하는 구간의 LED가 점등되도록 제어한다. 따라서, 입력전압의 상태를 시각적, 청각적으로 알려주고 과전압인가에 다른 모터파손의 위험을 미리 차단할 수 있다.A vacuum cleaner having a voltage display function is disclosed. The vacuum cleaner includes a light emitting unit and a control unit. The light emitting unit is installed outside the main body of the vacuum cleaner and includes a plurality of LEDs that are partitioned by input voltage and emit differently according to the input voltage. In addition, the control unit compares a plurality of preset reference voltages with an input voltage, and controls the LED of the section to which the input voltage belongs to be turned on. Therefore, the state of the input voltage can be visually and audibly informed, and the risk of other motor damage can be prevented in advance by application of overvoltage.

Description

전압표시기능을 구비한 진공청소기{Vacuum cleaner indicating the state of the input voltage}Vacuum cleaner indicating the state of the input voltage}

본 발명은 진공청소기에 관한 것으로, 입력되는 전압의 상태를 표시해 주는 진공청소기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner that displays a state of an input voltage.

일반적으로, 진공청소기는 내부에 모터가 설치되어 이 모터의 회전력에 의하여 청소하고자 하는 장소의 바닥면에 있는 먼지나 이물질을 흡입시킨다.In general, the vacuum cleaner is installed inside the motor to suck in dust or foreign matter on the bottom surface of the place to be cleaned by the rotational force of the motor.

그런데, 진공청소기에 평상시보다 약한 전압이 인가되면 모터의 구동력이 약해져서 흡입력이 떨어지므로 사용자는 청소기가 고장난 것으로 오해하기도 한다.However, when a weaker voltage is applied to the vacuum cleaner than usual, the driving force of the motor is weakened and the suction power is lowered, so the user may be mistaken that the cleaner is broken.

또한, 평상시보다 높은 전압이 인가되면 모터에 무리한 힘이 부가되는데도 사용자는 알 수가 없으므로 계속 청소기를 사용하다가 모터가 고장나는 경우도 있었다.In addition, when a higher voltage is applied than usual, even if a force is applied to the motor, the user may not know, and thus the motor may be broken while continuing to use the cleaner.

따라서, 일정한 전압이 입력되지 않는 지역에서, 청소기가 평상시와 다르게 동작하더라도 그 이유를 알 수 없는 문제점이 있었다.Therefore, in a region where a constant voltage is not input, there is a problem that the reason is unknown even if the cleaner operates differently than usual.

본 발명의 목적은 상기 문제점을 해결하기 위하여, 입력전압의 상태를 청각적, 시각적으로 알려주고 과전압인가에 다른 모터파손의 위험을 미리 차단할 수 있는 전압표시기능을 구비한 진공청소기를 제공하는 것이다.An object of the present invention is to provide a vacuum cleaner having a voltage display function that can inform the state of the input voltage audibly and visually, and can block the risk of other motor damage in advance to the application of overvoltage.

도 1은 본 발명의 실시예에 따른 전압표시기능을 구비한 진공청소기의 블록도이고,1 is a block diagram of a vacuum cleaner having a voltage display function according to an embodiment of the present invention,

도 2는 본 발명의 실시예에 따른 전압표시기능을 구비한 진공청소기의 동작흐름도이고,2 is an operation flowchart of a vacuum cleaner having a voltage display function according to an embodiment of the present invention,

도 3a ∼ 도 3d는 각각의 LED(Y, B, R)와 부저(BZ)가 전압의 범위에 따라서 어떻게 온/오프 동작하는지를 나타내는 도면이고, 그리고3A to 3D are diagrams showing how each LED (Y, B, R) and the buzzer (BZ) operate on / off according to a voltage range, and

도 4는 180V보다 낮은 전압이 입력된 경우 발광부(20)와 메시지표시부(22)의 상태를 나타내는 도면이다.4 is a view showing the state of the light emitting unit 20 and the message display unit 22 when a voltage lower than 180V is input.

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

10 : 전원부 12, 14 : 제 1 및 제 2비교기10: power supply unit 12, 14: first and second comparators

16 : 제어부 M : 모터16: control unit M: motor

BZ : 부저 20 : 발광부BZ: Buzzer 20: Light Emitting Part

22 : 메시지 표시부 Y : 황색 LED22: message display Y: yellow LED

B : 청색 LED R : 적색 LEDB: Blue LED R: Red LED

상기 목적을 달성하기 위하여, 외부로부터 전압이 입력되어 구동되는 모터를 구비한 진공청소기에 있어서, 진공청소기의 본체 외부에 설치되며, 입력 전압별로구획되어 입력전압에 따라서 서로 다르게 발광하는 복수개의 LED를 구비하는 발광부;및 미리 설정되어 있는 복수개의 기준 전압과 입력전압을 비교하여, 입력전압이 속하는 구간의 LED가 점등되도록 제어하는 제어부를 구비하는 것을 특징으로 하는 전압표시기능을 구비한 진공청소기가 제공된다.In order to achieve the above object, in the vacuum cleaner having a motor driven by inputting a voltage from the outside, a plurality of LEDs are installed outside the main body of the vacuum cleaner, and are divided for each input voltage and emit differently according to the input voltage. And a control unit which compares a plurality of preset reference voltages and input voltages, and controls a LED to light up in a section to which the input voltage belongs. Is provided.

상기 전압표시기능을 구비한 진공청소기는 입력 전압의 상태를 메시지로 표시하는 메시지표시부를 더 구비한다.The vacuum cleaner having the voltage display function further includes a message display unit displaying a state of an input voltage as a message.

또한, 상기 전압표시기능을 구비한 진공청소기는 과전압공급시 경고음을 발생하는 부저를 더 구비한다.In addition, the vacuum cleaner having the voltage display function further includes a buzzer for generating an alarm sound when the overvoltage is supplied.

바람직하게, 상기 제어부는 과전압이 입력되는 경우 상기 모터의 구동을 정지시킨다.Preferably, the controller stops driving of the motor when an overvoltage is input.

또한, 상기 제어부는 기준전압이 각각 180V, 250V인 2개의 비교기를 구비하고, 입력전압을 180V보다 낮은 경우, 250V보다 높은 경우 및 180V ∼ 250V사이인 경우로 구분한다.In addition, the control unit includes two comparators having reference voltages of 180 V and 250 V, respectively, and distinguishes between an input voltage lower than 180 V, higher than 250 V, and between 180 V and 250 V.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1에 도시된 것같이, 본 발명의 실시예에 따른 전압표시기능을 구비한 진공청소기는 전원부(10), 제 1비교기(12), 제 2비교기(14), 제어부(16), 모터(M), 부저(BZ), 발광부(20) 그리고 메시지 표시부(22)를 구비한다.As shown in Figure 1, the vacuum cleaner having a voltage display function according to an embodiment of the present invention, the power supply unit 10, the first comparator 12, the second comparator 14, the control unit 16, the motor ( M), a buzzer BZ, a light emitting unit 20 and a message display unit 22 are provided.

발광부(20)는 황색 LED(Y), 청색 LED(B) 및 적색 LED(R)의 3개의 발광다이오드(LED)로 이루어진다.The light emitting unit 20 includes three light emitting diodes (LEDs) of a yellow LED (Y), a blue LED (B), and a red LED (R).

제 1비교기(12)의 반전단자(-)에는 청소기 본체에 입력된 입력전압(Vi)이 입력되고, 비반전단자(+)에는 제어부에 의해 미리 설정된 제 1기준전압(Vr1)이 입력된다.The input voltage Vi input to the cleaner body is input to the inverting terminal (-) of the first comparator 12, and the first reference voltage Vr1 preset by the controller is input to the non-inverting terminal (+).

또한, 제 2비교기(14)의 반전단자(-)에는 입력전압(Vi)이 입력되고, 비반전단자(+)에는 제 2기준전압(Vr2)이 입력된다.In addition, an input voltage Vi is input to the inverting terminal (-) of the second comparator 14, and a second reference voltage Vr2 is input to the non-inverting terminal (+).

여기서, 제 1기준전압(Vr1)은 180V이고, 제 2기준전압(Vr2)은 250V이다.Here, the first reference voltage Vr1 is 180V and the second reference voltage Vr2 is 250V.

이에 따라, 제 1비교기(12)는 입력전압(Vi)이 180V 보다 큰지 작은지를 비교하고, 제 2비교기(14)는 입력전압(Vi)이 250V보다 큰지 작은지를 비교하여 비교 결과를 제어부(16)에 출력한다.Accordingly, the first comparator 12 compares whether the input voltage Vi is greater than or equal to 180 V, and the second comparator 14 compares whether the input voltage Vi is greater than or equal to 250 V and compares the result of the comparison with the controller 16. )

제어부(16)는 비교기(12, 14)의 출력값에 따라서 입력전압이 180V 이하인 경우 황색 LED(Y)가 점등되고, 입력전압이 250V이상인 경우 적색LED(R)가 점등되고, 입력전압이 181V∼ 249V인 경우 청색LED(B)가 각각 점등하도록 제어한다.The control unit 16 turns on the yellow LED (Y) when the input voltage is 180 V or less, and turns on the red LED (R) when the input voltage is 250 V or more, depending on the output values of the comparators 12 and 14, and the input voltage is 181 V to In the case of 249V, the blue LEDs B are turned on.

또한, 제어부(16)는 입력전압이 250V가 넘는 과전압공급시 부저(BZ)가 경고음을 발생하도록 하고, 모터(M)의 구동을 정지시킨다In addition, the controller 16 causes the buzzer BZ to generate a warning sound when the input voltage exceeds 250V and stops the driving of the motor M. FIG.

이와 같은 전압표시기능을 구비한 진공청소기의 동작을 도 2 ∼ 도 4를 참고하여 설명한다.The operation of the vacuum cleaner having such a voltage display function will be described with reference to FIGS. 2 to 4.

도 2는 본 발명의 실시예에 따른 전압표시기능을 구비한 진공청소기의 동작흐름도이고, 도 3a ∼ 도 3d는 각각의 LED(Y, B, R)와 부저(BZ)가 전압의 범위에 따라서 어떻게 온/오프 동작하는지를 나타낸다.2 is an operation flowchart of a vacuum cleaner having a voltage display function according to an exemplary embodiment of the present invention, and FIGS. 3A to 3D show each LED (Y, B, R) and a buzzer (BZ) according to a voltage range. It shows how on / off works.

청소기에 전압이 인가되면(단계 S201), 청소기에 인가된 입력전압이 180V보다 작은지 비교한다(단계 S202). 만약, 입력 전압이 180V보다 작으면 발광부의 황색 LED(Y)를 점등시킨다(단계 S204)(도 3a참고).When a voltage is applied to the cleaner (step S201), it is compared whether the input voltage applied to the cleaner is less than 180V (step S202). If the input voltage is less than 180V, the yellow LED Y of the light emitting portion is turned on (step S204) (see Fig. 3A).

도 4는 180V보다 낮은 전압이 입력된 경우 발광부(20)와 메시지표시부(22)의 상태를 나타내는 도면으로서, 황색 LED(Y)가 점등되고, 발광부(20) 아래에 위치한 메시지표시부(22)에 "전압이 약합니다"라는 메시지가 표시되어 있는 것을 알 수 있다.4 is a view showing the state of the light emitting unit 20 and the message display unit 22 when a voltage lower than 180V is input. The yellow LED (Y) is turned on and the message display unit 22 located below the light emitting unit 20 is shown. ), The message "Voltage is weak" is displayed.

한편, 청소기에 인가된 입력전압이 180V보다 크면, 입력전압이 250V보다 큰지를 다시 비교한다(단계 S206).On the other hand, if the input voltage applied to the cleaner is greater than 180V, it is again compared whether the input voltage is greater than 250V (step S206).

만약, 입력전압이 250V보다 작으면 입력전압이 청소기의 구동에 적합한 181 ∼ 249V이므로 청색 LED(B)를 점등시킨다(단계 S208)(도 3c참고). 또한, 메시지표시부(22)에 "청소중입니다"라는 메시지를 표시한다(단계 S209).If the input voltage is less than 250V, the blue LED B is turned on because the input voltage is 181 to 249V suitable for driving the cleaner (step S208) (see Fig. 3C). In addition, the message " Cleaning " is displayed on the message display section 22 (step S209).

그러나, 입력전압이 250V보다 크다면, 과전압이 청소기에 인가되는 것이므로, 모터의 구동을 정지시킨다(단계 S210). 또한, 적색 LED(R)를 점등시키고(단계 S212)(도 3b참고), 부저를 작동시켜서(단계 S214)(도 3d참고), 사용자에게 경고한다.However, if the input voltage is greater than 250V, the overvoltage is applied to the cleaner, so that driving of the motor is stopped (step S210). Further, the red LED R is turned on (step S212) (see FIG. 3B), and the buzzer is operated (step S214) (see FIG. 3D) to warn the user.

또한, 메시지표시부(22)에 "전압이 너무 높아 청소가 종료됩니다"라는 메시지를 표시한다(단계 S215).Further, a message " Cleaning ends because the voltage is too high " is displayed on the message display portion 22 (step S215).

이와 같은 전압표시기능을 구비한 진공청소기에 의하면, 입력전압의 상태를 시각적, 청각적으로 알려주고 과전압인가에 다른 모터파손의 위험을 미리 차단할수 있는 진공청소기를 제공하는 것이다.According to the vacuum cleaner having such a voltage display function, it is possible to provide a vacuum cleaner that can visually and acoustically inform the state of the input voltage and can block the risk of other motor damage in advance when overvoltage is applied.

또한, 입력전압이 불안정하여 청소기가 평상시와 다르게 동작할지라도 안심하고 청소기를 사용할 수 있다.In addition, even if the cleaner operates differently due to unstable input voltage, the cleaner can be used with confidence.

이상에서는 본 발명의 바람직한 실시예에 대해서 도시하고 설명하였으나, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments of the present invention without departing from the spirit of the present invention as claimed in the claims. Anyone skilled in the art can make various modifications, as well as such modifications are within the scope of the claims.

Claims (5)

외부로부터 전압이 입력되어 구동되는 모터를 구비한 진공청소기에 있어서,In a vacuum cleaner having a motor driven by inputting a voltage from the outside, 진공청소기의 본체 외부에 설치되며, 입력 전압별로 구획되어 입력전압에 따라서 서로 다르게 발광하는 복수개의 LED를 구비하는 발광부;A light emitting unit installed outside the main body of the vacuum cleaner and having a plurality of LEDs which are partitioned by input voltage and emit differently according to the input voltage; 입력 전압의 상태를 메시지로 표시하는 메시지 표시부; 및,A message display unit displaying a state of an input voltage as a message; And, 미리 설정되어 있는 복수개의 기준 전압과 입력전압을 비교하여, 입력전압이 속하는 구간의 LED가 점등되도록 제어하는 제어부를 구비하는 것을 특징으로 하는 전압표시기능을 구비한 진공청소기.And a control unit for comparing a plurality of preset reference voltages and input voltages to control LEDs in a section to which the input voltage belongs, so as to light the LEDs. 삭제delete 제 1항에 있어서,The method of claim 1, 과전압공급시 경고음을 발생하는 부저를 더 구비하는 것을 특징으로 하는 전압표시기능을 구비한 진공청소기.The vacuum cleaner having a voltage display function, characterized in that it further comprises a buzzer for generating a warning sound when overvoltage is supplied. 제 1항에 있어서,The method of claim 1, 상기 제어부는 과전압이 입력되는 경우 상기 모터의 구동을 정지시키는 것을 특징으로 하는 전압표시기능을 구비한 진공청소기.And the control unit stops driving of the motor when an overvoltage is input. 제 1항에 있어서,The method of claim 1, 상기 제어부는 기준전압이 각각 180V, 250V인 2개의 비교기를 구비하고, 입력전압을 180V보다 낮은 경우, 250V보다 높은 경우 및 180V ∼ 250V사이인 경우로 구분하는 것을 특징으로 하는 전압표시기능을 구비한 진공청소기.The control unit includes two comparators having reference voltages of 180 V and 250 V, respectively, and distinguishes between an input voltage lower than 180 V, higher than 250 V and between 180 V and 250 V. Vacuum cleaner.
KR10-2002-0020857A 2002-04-17 2002-04-17 Vacuum cleaner indicating the state of the input voltage KR100466319B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR10-2002-0020857A KR100466319B1 (en) 2002-04-17 2002-04-17 Vacuum cleaner indicating the state of the input voltage
RU2002120961/12A RU2257131C2 (en) 2002-04-17 2002-07-30 Vacuum cleaner with inlet voltage level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0020857A KR100466319B1 (en) 2002-04-17 2002-04-17 Vacuum cleaner indicating the state of the input voltage

Publications (2)

Publication Number Publication Date
KR20030082222A KR20030082222A (en) 2003-10-22
KR100466319B1 true KR100466319B1 (en) 2005-01-13

Family

ID=32379258

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2002-0020857A KR100466319B1 (en) 2002-04-17 2002-04-17 Vacuum cleaner indicating the state of the input voltage

Country Status (2)

Country Link
KR (1) KR100466319B1 (en)
RU (1) RU2257131C2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815491A (en) * 1981-07-20 1983-01-28 Matsushita Electric Ind Co Ltd Vacuum cleaner
KR920002070Y1 (en) * 1990-06-28 1992-03-28 김원규 Cap for spray
KR930007029Y1 (en) * 1991-09-16 1993-10-11 주식회사 금성사 Indicated controller of vacuum cleaner
JPH07213468A (en) * 1994-01-31 1995-08-15 Hitachi Ltd Control circuit for vacuum cleaner
KR19990043452A (en) * 1997-11-29 1999-06-15 전주범 How to detect dust in a vacuum cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815491A (en) * 1981-07-20 1983-01-28 Matsushita Electric Ind Co Ltd Vacuum cleaner
KR920002070Y1 (en) * 1990-06-28 1992-03-28 김원규 Cap for spray
KR930007029Y1 (en) * 1991-09-16 1993-10-11 주식회사 금성사 Indicated controller of vacuum cleaner
JPH07213468A (en) * 1994-01-31 1995-08-15 Hitachi Ltd Control circuit for vacuum cleaner
KR19990043452A (en) * 1997-11-29 1999-06-15 전주범 How to detect dust in a vacuum cleaner

Also Published As

Publication number Publication date
RU2002120961A (en) 2004-01-20
RU2257131C2 (en) 2005-07-27
KR20030082222A (en) 2003-10-22

Similar Documents

Publication Publication Date Title
KR100466319B1 (en) Vacuum cleaner indicating the state of the input voltage
KR101834509B1 (en) The flash for salvage alarm
JP2009252656A (en) Plug and tap
JP4529657B2 (en) Light emitting diode lighting device and lighting fixture
US20070056837A1 (en) Air blown electric switch device
JPH06274137A (en) Information display system and connecting device used for the same
CN211018788U (en) Push-pull type low-frequency ground induction line driving device
CN207866889U (en) Electric toothbrush undervoltage warning circuit
JPH11174093A (en) Voltage drop alarming circuit
CN105866327B (en) A kind of environmental quality monitoring system
CN112716354B (en) Electric vacuum cleaner
CN213534621U (en) Touch starting circuit of electric car and electric car
KR200303699Y1 (en) Inverter
KR200322122Y1 (en) emergency exit guiding apparatus by light emitting diode
JP4058431B2 (en) Encoder disconnection detection method, encoder disconnection detection apparatus, and power conversion apparatus including the same
CN115781600A (en) Electric tool provided with abnormal state warning device
KR950004099B1 (en) Crt protection circuit of projection tv
KR0122122B1 (en) A device for controlling washer fluid indicator
KR950006235Y1 (en) Input video signal distnction apparatus of monitor
KR200247023Y1 (en) A Control Device of LED in Electronic Overload Current Relay
CN118112458A (en) Leakage detection device, leakage detection system using same and leakage detection method
KR200272342Y1 (en) Fan Auto Control
CN117322802A (en) Dust collector and control method thereof
JP2018003772A (en) Electric box, and water supply equipment
JP2521063Y2 (en) Display device for inverter device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20111226

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20121228

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee