JPH04218132A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To efficiently carry out cleaning work, indicating the dust volume during cleaning, by outputting signals to the pulse converter in accordance with the number of dust by means of a dust sensor and by counting the pulse count from the pulse converter in a unit time, accumulating the counted figure to calculate the hourly average and manipulating a confirmation switch. CONSTITUTION:Passed number of dust 4 within a unit time is measured by a counter 8a and accumulated in an accumulator 8b. Pass of dusts is counted by a counting means with an interruption function. When unit time is passed, the measured value of the counter 8a is accumulated by the accumulator 8b. The figure on the counter 8a is cleared away and then the time during cleaning is counted. When a confirmation switch 11 is pushed, the contents in the accumulator 8b is divided by the counted time. Moreover, the number of indication lamps 10 is judged by the division result. And the figure of the accumulator 8b is cleared and the indication lamp 10 is illuminated for a certain interval.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner with which the amount of dust collected during cleaning can be checked.

0002

2. Description of the Related Art Conventionally, this type of vacuum cleaner has a structure as shown in FIG. This will be explained below with reference to the drawings.

As shown in the figure, the suction port 2 of the main body 21
A hose 23, an extension pipe 24, and a suction tool 25 are connected to 2. A hand switch 26 is provided at the tip of the hose 23, and by operating the hand switch 26, the main body 21
This is to control the rotation speed of an electric blower 27 provided inside.

0004

[Problems to be Solved by the Invention] Such conventional vacuum cleaners have a problem in that even after cleaning, it is not possible to confirm whether dust has been removed or remains.

[0005] The present invention solves the above-mentioned problems, and aims to provide an efficient vacuum cleaner that allows the amount of dust sucked during cleaning to be confirmed, provides a guideline for cleaning, and provides an efficient vacuum cleaner.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the vacuum cleaner of the present invention includes a dust sensor provided in an air passage through which dust passes, and a pulse converter that converts the output of the dust sensor into a pulse signal. a counting means for counting the number of pulses from the pulse converting section within a unit time; a control means for accumulating the counting results by the counting means and calculating a time average; The present invention is configured to include a display means for displaying the amount of dust, and a confirmation switch for confirming the amount of dust by outputting to the control means, and an off switch is provided in place of the confirmation switch.

[0007]

[Operation] In the above configuration, the dust sensor outputs an output to the pulse converter according to the number of dust particles, and the number of pulses from the pulse converter is counted and accumulated within a unit time to calculate a time average. When the confirmation switch is operated, the signal is input to the control means, and the amount of dust during cleaning can be displayed on the display means, and when the off switch is operated, the signal is input to the control means and the display means shows the amount of dust being cleaned. It is possible to display the amount of dust up to.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment of the present invention.

As shown in the figure, a light emitting diode 2 is provided in an air flow path 1, a light receiving section 3 is provided opposite to the light emitting diode 2, and changes in the amount of light are detected by dust 4 passing through the air flow path 1. Ru. The light emitting diode 2 and the light receiving section 3 form a dust sensor 5. As shown in FIG. 1, the signal from the light receiving section 3 is amplified by the amplifying section 6, waveform-shaped by the pulse converting section 7, and inputted to the control means 8. The control means 8 has a counting means 8a, a totalizing section 8b, and a timer section 8c, and the control means 8 is connected via a phase control circuit 9 to an electric blower 2 and an indicator lamp 10 that indicates the amount of dust. . 11 is a confirmation switch for checking the amount of dust during cleaning.

The operation of the above-described configuration will be described with reference to FIGS. 3 and 4. The counting means 8a counts the number of passing dust particles 4 in a unit time, and the counting means 8a counts the number of passages of dust 4 in the counting means 8a.
Perform the cumulative total. The series of cycles in the flowchart of FIG. 4 are performed in half cycles of the power supply frequency. Therefore, if the power supply frequency is 60Hz, the timer section 8c in step 1
If you count 12 times, it will take 0.1 seconds. The passage of dust 4 is
It is counted by the counting means 8a by the interrupt function. If the unit time has elapsed in step 2, the count value of the counting means 8a is accumulated in step 3, the totaling unit 8b performs the accumulation, and the counter of the counting means 8a is cleared. Step 4 counts the time spent cleaning. Confirm switch 11 in step 5
If the button is pressed, the contents of the cumulative total section 8b are divided by the time counted in step 4. Furthermore, an indicator lamp 10 (an infrared light emitting diode may be used) is displayed according to the result of the division.
judge the number. Then, in step 6, the counter of the accumulator 8b is cleared and the display lamp 10 is displayed for a certain period of time, and the series of processing ends.

FIG. 5 shows a second embodiment, in which an off switch 12 is provided in place of the confirmation switch 11, and the same processing as in the previous embodiment is performed. This is because the off switch 12 operates during one period of time when the vacuum cleaner is operated, which corresponds to cleaning one room.
The number displayed on the indicator lamp 10 indicates a relative amount of dust in the room. This has the effect of determining the level of dust removal in each room.

As shown in FIG. 6, the control means 8 continuously counts the cleaning time with the accumulator 8b. In other words, when the off switch 12 is pressed from the second time onward, the cumulative total 8 from the beginning
The counter b indicates the relative amount of dust sucked up using the vacuum cleaner. This has the effect of allowing you to see how well all the dust has been removed during cleaning.

[0013]

[Effects of the Invention] As described above, according to the vacuum cleaner of the present invention, the dust sensor provided in the air passage through which dust passes;
A pulse converter converts the output of the dust sensor into a pulse signal, a counting means counts the number of pulses from the pulse converter within a unit time, and a time average is calculated by accumulating the counting results by the counting means. The apparatus is equipped with a control means, a display means for displaying the amount of dust by input from the control means, and a confirmation switch for outputting to the control means to check the amount of dust. With this configuration, the amount of dust during cleaning can be checked. can be displayed, allowing you to understand the cleaning schedule and perform cleaning tasks more efficiently.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of a vacuum cleaner according to a first embodiment of the present invention.

[Figure 2] Cross-sectional view of main parts

[Fig. 3] Diagram explaining the operation of the control means

[Figure 4] Operation flowchart

FIG. 5 is a block circuit diagram of a vacuum cleaner according to a second embodiment of the present invention.

FIG. 6: Operation flowchart of a vacuum cleaner according to another embodiment of the present invention.

[Figure 7] External perspective view of a conventional vacuum cleaner

[Explanation of symbols]

5 Dust sensor 7 Pulse conversion section 8 Control means 8a Counting means 10 Indication lamp (display means)

Claims (2)

[Claims] Claim 1: A dust sensor provided in an air passage through which dust passes, a pulse converter that converts the output of the dust sensor into a pulse signal, and a counter that counts the number of pulses from the pulse converter within a unit time. means, a control means for accumulating the counting results by the counting means and calculating a time average, and a display means for displaying the amount of dust based on the input from the control means;
and a confirmation switch for confirming the amount of dust by outputting it to the control means, and displaying the amount of dust during cleaning by operating the confirmation switch. [Claim 2] An off switch is provided in place of the confirmation switch,
2. The vacuum cleaner according to claim 1, wherein when the cut-off switch is operated, the amount of dust until the switch is turned off is displayed.