JP2016154833A - Cleaner having filter state notification function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaner having a filter state notification function.SOLUTION: A cleaner is configured to have a notification function for checking a state of a filter applied to the cleaner and subsequently allowing a user to recognize the state of the filter, and to increase/decrease a driving speed of a motor after detecting suction pressure due to a checked state change of the filter. Thus, a user is made to quickly grasp an acceptance/rejection of exchanging the filter to prevent performance deterioration of the cleaner due to a clogging degree of the filter, and the suction force of the cleaner due to the clogging degree of the filter is always kept at a constant level to improve product satisfaction while minimizing noise generation when the cleaner is used.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaner, and in particular, when dust sucked by the suction force of a cleaner motor is filtered by a filter, a change in the filtering state of the filter (for example, clogging) is checked, and whether or not the filter can be replaced is used. A cleaning machine having a filter state notification function that detects the suction pressure due to the checked filter state change and keeps the suction force of the cleaning machine constant at all times while adjusting the motor driving speed ( (Cleaner with a filter status notification function).

  In general, bedclothes such as futons and pillows and bed mattresses, as well as floor carpets, etc. are in contact with the human body for a relatively long period of time.

  Therefore, bedding and carpets (hereinafter referred to as “objects to be cleaned”) are not only general foreign matters such as dust, but also house dust mite excreta that eat raw from the dead skin that falls from the human body, and their dust and fine dust. In particular, the environment is easy to eat bacteria and house dust mites, which are harmful to the human body, while sweating from the human body is sticky.

  On the other hand, the foreign matter as described above that contaminates the object to be cleaned serves as a bait for bacteria and pests, so the object to be cleaned itself becomes a habitat for bacteria and pests. There was a problem of being damaged.

  For this reason, the object to be cleaned has been disinfected by hitting it with sunlight at any time or by spreading a disinfectant and insecticide with some chemicals.

  However, bacteria and pests are small in size, and the surface of the object to be cleaned, as well as the infestation and activity of the deep part of the object to be cleaned, can be parasitized and activated. Even when disinfecting and disinfecting bactericides and pesticides, etc., there has been a problem that bacteria and pests are not sufficiently removed.

  In order to solve the above-mentioned problems, the applicant of the present application is as follows. Korean Patent Gazette No. 10-0661619 (publication date, December 26, 2006), Korean Patent Gazette No. 10-1306733 (publication date, 2013) (September 3)).

  The cleaning machine includes a main body, a suction motor, a brush, a striking body, an ultraviolet lamp, a filter, and the like, and the brush sweeps the surface of the object to be cleaned when suctioning foreign matter on the surface of the object to be cleaned through the operation of the motor. The foreign object can be easily removed from the object to be cleaned by the impacting body hitting the surface of the object to be cleaned, and the surface of the object to be cleaned can be sterilized by ultraviolet irradiation from an ultraviolet lamp. .

  At this time, the filter applied to the cleaning machine is installed near the dust collection chamber to remove dust of a predetermined size and / or installed near the motor and cannot be removed from the primary filter. A secondary filter was applied to remove the fine dust and prevent the fine dust from being discharged outside the cleaner.

  However, the primary filter and / or the secondary filter applied to the prior art filed and registered by the applicant of the present application as well as the conventionally known cleaners, the user confirms the dust adhering to the filter surface at any time. Therefore, if the dust is not properly removed from the surface of the filter, and the clogging phenomenon occurs in the filter, the suction force is reduced even if the output efficiency of the cleaner motor is high. Therefore, there is a structural problem that dust suction by the cleaner is not performed properly.

  In addition, in the case of the prior art filed and registered by the applicant of the present application as well as the conventionally known cleaning machine, the function of maintaining the output efficiency of the cleaning machine motor is not realized even if the filter is clogged with dust. Because it can only provide a function to adjust the driving force of the motor to a strong, medium or weak operation mode depending on the button operation of the user, the disadvantage that inconveniences the user and the possibility of clogging of the filter There was an inconvenience that the filter had to be replaced with direct confirmation.

Korean Patent Gazette No. 10-0661619 Korean Patent Gazette No. 10-1302673

  Therefore, the present invention is for improving the conventional problems as described above, and constitutes a notification function that allows the user to recognize the state of the filter applied to the cleaner after checking the state of the filter. Therefore, it is an object of the present invention to provide a cleaner having a filter state notification function that allows a user to quickly grasp whether or not a filter can be replaced and prevent the performance of the cleaner from being deteriorated due to the degree of filter clogging.

  Another object of the present invention is to adjust the driving speed of the motor after detecting the suction pressure due to the checked filter state change, so that the suction force of the cleaner due to the degree of filter clogging is always constant. To minimize noise generation when using the cleaner.

  In order to achieve the above object, a cleaner having a filter state notification function according to the present invention includes a main body having a suction port, a dust collecting chamber coupled to one end of the main body, and the suction chamber formed inside the main body. A motor that drives to suck dust through the mouth, a motor control unit that controls the output efficiency of the motor, and the dust collection chamber, and is provided adjacent to the dust collection chamber. A first filter that filters so that dust contained in the foreign matter is not discharged to the outside of the dust chamber when the foreign matter flows into the dust collection chamber via the dust collection chamber, and is provided between the dust chamber and the motor. A first detection unit for measuring the wind pressure passing through the first filter, and a control board in the main body, and determining a dust adhesion state on the first filter based on the wind pressure measured from the first detection unit. , A control unit that controls the motor control unit so as to increase or decrease the driving speed of the motor according to the amount of dust adhered, and formed on one surface of the main body, so that whether to replace the first filter is determined. And a display unit that displays the amount of dust adhering determined by the control unit.

  The first detection unit is an analog pressure sensor that outputs a first measurement value of a voltage with respect to the wind pressure passing through the first filter to the control unit.

  The first measurement value of the voltage measured by the first detection unit is amplified by the first amplification unit, converted to a digital signal, and output to the control unit.

  The first detection unit is a digital pressure sensor that outputs a second measurement value of a pressure ratio to the wind pressure passing through the first filter to the control unit by a digital communication method.

  Further, the control unit includes a reference table in which a first pressure value matching the first measurement value of the voltage is stored, and the control unit outputs a first voltage amplified and output from the first amplification unit. When a measured value is input, a first pressure value that matches the first measured value of the input voltage is searched from the reference table, and a dust adhesion amount of the first filter is determined from the searched first pressure value. And a determination program for displaying the determination result on the display unit.

  In addition, the control unit includes a reference table in which a second pressure value matching the second measurement value of the pressure ratio is stored, and the control unit outputs a first pressure ratio output from the digital pressure sensor. When two measured values are input, a second pressure value that matches the second measured value of the input pressure ratio is searched from the reference table, and the amount of dust adhering to the first filter from the searched second pressure value. And a determination program for displaying the determination result on the display unit.

  An air flow is formed on the rear side of the main body, and inside the air flow, fine dust that is not filtered by the first filter is blocked from being discharged to the outside of the main body through the air flow. A second filter configured to filter fine dust, and a second detection unit configured to measure a wind pressure passing through the second filter between the motor and the air flow and then output the measured pressure to the control unit. Configured.

  The second detection unit is an analog pressure sensor that outputs a first measurement value of a voltage with respect to the wind pressure passing through the second filter to the control unit.

  In addition, the first measurement value of the voltage measured by the second detection unit is amplified by the second amplification unit, converted to a digital signal, and output to the control unit.

  The second detection unit is a digital pressure sensor that outputs a second measurement value of a pressure ratio with respect to the wind pressure passing through the second filter to the control unit by a digital communication method.

  In addition, the control unit includes a reference table in which a first pressure value matching the first measurement value of the voltage is stored, and the control unit outputs a first voltage amplified and output from the second amplifying unit. When a measured value is input, a first pressure value that matches the first measured value of the input voltage is searched from the reference table, and a dust adhesion amount of the second filter is determined from the searched first pressure value. And a determination program for displaying the determination result on the display unit.

  In addition, the control unit includes a reference table in which a second pressure value matching the second measurement value of the pressure ratio is stored, and the control unit outputs a first pressure ratio output from the digital pressure sensor. When two measured values are input, a second pressure value that matches the second measured value of the input pressure ratio is searched from the reference table, and the amount of dust adhering to the second filter from the searched second pressure value. And a determination program for displaying the determination result on the display unit.

  In addition, the display unit is configured to display a first indicator for displaying a state of the first filter or the second filter by a control operation of the control unit, a normal or a warning or replacement at a stage before replacement. .

  In addition, the display unit displays a second display for displaying the state of the first filter or the second filter by a control operation of the control unit with a normal or pre-replacement warning or replacement displayed in a graphic form. Configured as follows.

  As described above, the present invention configures a notification function that allows the user to recognize the state of the filter applied to the cleaner and then recognizes the suction pressure due to the state change of the checked filter. After detecting this, it is configured to increase or decrease the drive speed of the motor, thereby allowing the user to quickly grasp whether or not the filter can be replaced and prevent the performance of the cleaning machine from being degraded due to the degree of filter clogging, The effect of improving the product satisfaction can be expected while keeping the suction force of the cleaner due to the degree of clogging of the filter constant and minimizing noise generation when using the cleaner.

It is a perspective view which shows the structure of the cleaning machine which concerns on embodiment of this invention. It is a section schematic diagram showing the structure of the cleaning machine concerning the embodiment of the present invention. It is a schematic block diagram which implement | achieves the filter status notification function of the cleaning machine which concerns on embodiment of this invention. It is the plane schematic diagram of the display part on which the indicator for notifying a user of the amount of dust of the filter concerning the embodiment of the present invention was displayed. 1 is a schematic circuit diagram of an analog pressure sensor according to an embodiment of the present invention. 1 is a schematic circuit diagram of a digital pressure sensor according to an embodiment of the present invention. It is the pressure table in a control part which preserve | saved the pressure value which matches the measured voltage value which concerns on embodiment of this invention. It is the pressure table in a control part which preserve | saved the digital output value of the pressure which matches the pressure ratio which concerns on embodiment of this invention. It is a control table of the control part which shows the state which hold | maintains the suction pressure of a cleaner uniformly through the output efficiency control of the motor by the measured pressure ratio of the filter which concerns on embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a structure of a cleaning machine according to an embodiment of the present invention, FIG. 2 is a schematic sectional view showing a structure of a cleaning machine according to an embodiment of the present invention, and FIG. The schematic block block diagram which implement | achieves the filter status notification function of the cleaning machine which concerns on embodiment of invention is shown.

  FIG. 4 is a schematic plan view of a display unit on which a display for notifying a user of the dust amount of the filter according to the embodiment of the present invention is displayed, and FIG. 5 is an analog according to the embodiment of the present invention. FIG. 6 is a schematic circuit diagram of a digital pressure sensor according to an embodiment of the present invention.

  1 to 6, a cleaner having a filter state notification function according to an embodiment of the present invention includes a main body 1 having a suction port 1 a, and a dust collection chamber 2 coupled to one end of the main body 1. A motor 3 that is formed inside the main body 1 and drives to suck dust through the suction port 1a; a motor control unit 4 that controls output efficiency of the motor 3; When the foreign matter flows into the dust collection chamber 2 through the suction port 1 a by driving the motor 3, the dust contained in the foreign matter is discharged to the outside of the dust collection chamber 2. In addition to the first filter 5 for filtering so as not to be performed, the first detection unit 10, the control unit 20, and the display unit 30 are further included.

  The first detection unit 10 is provided between the dust collection chamber 2 and the motor 3 so that the wind pressure (wind pressure) passing through the first filter 5 is measured. The first measurement value is configured to be output to the control unit 20.

  Here, the first detection unit 10 converts the first measurement value of the voltage for the wind pressure measurement passing through the first filter 5 from analog to digital signal (ADC) and outputs the analog value to the control unit 20. A digital pressure that is configured by a pressure sensor or outputs a first measured value of a pressure ratio to a wind pressure passing through the first filter 5 to the control unit 20 by a digital communication method as shown in FIG. Consists of sensors.

  That is, when the first detection unit 10 is configured by an analog pressure sensor, the analog pressure sensor includes an first amplifier 50 that is an op-amp (OP-AMP) as shown in FIG. Thus, the first measurement value of the voltage is amplified, converted into a digital signal, and output to the control unit 20.

  Here, when the first detection unit 10 is configured by an analog pressure sensor, the pressure sensor is a first measurement value of a minute voltage (for example, 0 to several tens mV) with respect to the wind pressure passing through the first filter 5. The first measured value of the voltage thus output is within a predetermined range (for example, 0 to 5 V range) so that the control unit 20 can read through the first amplification unit 50. Is then converted to a digital signal and output to the control unit 20.

  On the other hand, when the first detection unit 10 is configured with a digital pressure sensor, the first amplification unit 50 may not be used. This is because the digital pressure sensor is connected to the control unit 20 and the I2C ( This is because the second measured value of the pressure ratio with respect to the wind pressure measured while being connected by the digital communication method of the Inter-Integrated Circuit (SPI) or SPI (Serial Peripheral Interface) form is directly output to the control unit 20.

  The control unit 20 is configured on a control board (not shown) in the main body 1 while being electrically connected to the first detection unit 10, so that the voltage against the wind pressure measured from the first detection unit 10 is configured. Alternatively, the second measured value of the pressure ratio is matched with the second pressure value stored in the reference table to determine the amount of dust adhering on the first filter 5, and the determination result shows the above-mentioned as shown in FIG. The output efficiency of the motor control unit 4 is controlled so as to increase or decrease the driving speed of the motor 3.

  That is, when the wind pressure passing through the first filter 5 is decreased, the second measured value of the voltage or pressure ratio amplified and output through the first amplifier 50 detected by the first detector 10 is decreased. When the wind pressure increases, the second measured value of the voltage or pressure ratio increases. Therefore, when the wind pressure and the second measured value of the voltage or pressure ratio associated with the wind pressure are changed, the control unit 20 changes the amount of change. Accordingly, the driving speed of the motor 3 is adjusted through the motor control unit 4 so that the suction force of the cleaner is always kept constant.

  In one example, the control unit 20 increases the driving speed of the motor 3 via the motor control unit 4 when the wind pressure passing through the first filter 5 is low, and conversely when the wind pressure is high, the motor control unit 4. As shown in the attached FIG. 9, the suction force of the cleaner performed through the suction port 1a of the main body 1 is always kept constant while performing the control operation to reduce the driving speed of the motor 3 through Yes, such a control operation proceeds based on an installed control program.

  The control unit 20 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a serial or parallel input / output port (I / OPORT), a timer / counter processor, and the like. It is a microprocessor (MCU; Micro Controller Unit) that is integrated in one semiconductor chip and performs a machine control function.

  At this time, the controller 20 determines the amount of dust adhering to the first filter 5 based on the measurement information of the first detector 10 constituted by an analog or digital pressure sensor. 7, a reference table for storing a first pressure value that matches the first measured value of voltage, or a pressure ratio as shown in FIG. 8 so that the amount of dust adhering to the first filter 5 is determined. The second pressure value matching the second measured value is stored in a reference table, and the pressure value stored in the reference table is constructed through many experiments.

  Therefore, when the first measurement value of the voltage amplified and output from the first amplification unit 50 is input, the control unit 20 attaches a first pressure value that matches the first measurement value of the input voltage. 7 from the reference table of FIG. 7 and determining the amount of dust adhering to the first filter 5 from the searched first pressure value and displaying the result on the display unit 30 or from the digital pressure sensor When measuring the wind pressure, a second pressure value matched with the second measured value of the pressure ratio by the wind pressure measurement is searched from the reference table of FIG. 8, and the first filter is searched from the searched second pressure value. The control program which judges the dust adhesion amount of 5 and displays the result on the said display part 30 is mounted.

  The display unit 30 is formed on one surface of the main body 1 and is configured to display the amount of dust attached as a result determined by the control unit 20.

  That is, the display unit 30 displays a normal A1 or a warning A2 or a replacement A3 at the previous stage of replacement as shown in FIG. A second display that displays the container A and / or displays the normal state B1 or the warning B2 or the replacement B3 at the previous stage of replacement as a graphic by the control operation of the control unit 20 The display B is configured to display, and the user visually confirms the display state of the first display A and / or the second display B, and whether to replace the first filter 5 or not. Is configured to be determined.

  Thus, the cleaning machine having the filter state notification function according to the embodiment of the present invention, as shown in the attached FIGS. 1 to 9, when power is first supplied to the cleaning machine with an operation switch (not shown), The controller 20 of the cleaning machine controls the driving speed of the motor 3 through the motor controller 4.

  Therefore, a suction force is generated by the driving speed of the motor 3, and various foreign substances and dust existing on the bottom of the object to be cleaned through the suction port 1a formed on the bottom surface of the cleaning machine body 1 by such a suction force. Various kinds of foreign matter and dust that are forcibly sucked and thus forcibly sucked in flow into the dust collecting chamber 2 and are collected.

  The suction force for forcibly sucking various foreign substances and dust into the dust collection chamber 2 passes through the first filter 5 together with the dust, and the dust is filtered by the first filter 5 and passes therethrough. However, the wind by the suction force is applied while passing through the first filter 5.

  At this time, the wind pressure applied while passing through the first filter 5 is changed according to the amount of dust adhering to the first filter 5. The larger the amount of dust adhering, the more the filtering function of the first filter 5 is. There arises a problem that the suction force due to the driving of the motor 3 is reduced.

  Accordingly, the first detector 10, which is an analog or digital pressure sensor installed adjacent to the first filter 5, measures the amount of change in wind pressure applied to the first filter 5 to measure the first measured value of the voltage. Alternatively, the second measurement value of the pressure ratio is output to the control unit 20.

  By doing so, the control unit 20 determines the first pressure value or the second pressure value that matches the first measurement value or the second measurement value of the voltage or pressure ratio that is input using the installed determination program. A search is made from the reference table shown in FIG. 7 or FIG. 8, and the amount of dust attached to the first filter 5 is determined from the searched first pressure value or second pressure value. The result can be displayed on the display unit 30 to notify the user whether or not the first filter 5 is to be replaced.

  That is, the display unit 30 displays the first display A and / or the second display B, and the first display A is applied to the first filter 5 by the control operation of the control unit 20. The state is displayed as normal A1 or warning A2 or replacement A3 at the stage before replacement, and the second indicator B displays the state for the first filter 5 as normal B1 or before replacement at the control operation of the control unit 20. The warning B2 or the replacement B3 is displayed on the figure in a subtracted manner so that the user can remove the first filter 5 from the main body of the cleaner without disassembling the first display A and / or the second display B. From the display information, the replacement time for the first filter 5 can be easily grasped, the replacement time of the first filter 5 is missed, the operation performance of the cleaner is reduced, or the first filter 5 The problem that the amount of dust adhering and the noise is severely generated can be prevented more effectively in advance.

  On the other hand, in the cleaner according to the embodiment of the present invention, an air flow 6 is formed on the rear side of the main body 1, and fine dust that is not filtered by the first filter 5 enters the air flow 6 inside the air flow 6. A second filter 7 for filtering fine dust is configured so as to be blocked from being discharged to the outside of the main body 1 through the second filter 7. Thus, the second filter 7 is interposed between the motor 3 and the air flow 6. After the wind pressure passing through 7 is measured, a second detection unit 40 is provided to output this to the control unit 20, and the amount of dust adhering to the second filter 7 can be notified to the user.

  At this time, the second detection unit 40 includes an analog pressure sensor that outputs a first measurement value of a voltage with respect to the wind pressure passing through the second filter 7 to the control unit 20. The first measured value of the voltage measured by the unit 40 is amplified by the second amplifying unit 60, converted into a digital signal, and output to the control unit 20.

  Meanwhile, the second detection unit 40 may be configured by a digital pressure sensor that outputs a second measurement value of a pressure ratio to the wind pressure passing through the second filter 7 to the control unit 20 by a digital communication method. it can.

  Accordingly, the control unit 20 includes a reference table in which a first pressure value matching the first measurement value of the voltage is stored, and the control unit 20 is a voltage amplified and output from the second amplification unit 60. When the first measured value is input, the first pressure value matching the first measured value of the input voltage is searched from the reference table, and the dust of the second filter 7 is searched from the searched first pressure value. The control unit 20 has a reference table in which an adhesion amount is determined and the determination result is displayed on the display unit 30 or a second pressure value matching the second measurement value of the pressure ratio is stored. When the second measurement value of the pressure ratio output from the digital pressure sensor is input, the second pressure value matching the second measurement value of the input pressure ratio is searched from the reference table, and the searched second value is searched. 2 pressure Determining dust adhesion amount of the second filter 7, and equipped with a determination program for displaying the determination result on the display unit 30.

  Hereinafter, the same portions having the same effects as those of the embodiment of the present invention are denoted by the same reference numerals, and redundant description thereof is omitted.

  Although the foregoing has been described in detail with reference to the preferred embodiments of the present invention, the scope of the present invention is not limited thereto, and is within the scope of the spirit and scope of the present invention described in the claims. Various modifications and changes can be made to the present invention.

DESCRIPTION OF SYMBOLS 1 Main body 1a Suction port 2 Dust collection chamber 3 Motor 4 Motor control part 5 1st filter 6 Air flow 7 2nd filter 10 1st detection part 20 Control part 30 Display part 40 2nd detection part 50 1st amplification part 60 2nd amplification Part

Claims (14)

A main body having a suction port, a dust collecting chamber coupled to one end of the main body, a motor formed inside the main body and driven to suck dust through the suction port, and output efficiency of the motor And a motor control unit for controlling the dust and the dust contained in the foreign matter when the foreign matter flows into the dust collecting chamber through the suction port by driving the motor. A first filter that filters the first dust filter so as not to be discharged outside the dust chamber,
A first detector that is provided between the dust chamber and the motor and measures the wind pressure passing through the first filter;
It is configured on the control board in the main body and determines the dust adhesion state on the first filter based on the wind pressure measured from the first detection unit, and adjusts the driving speed of the motor based on the determined dust adhesion amount. A control unit for controlling the motor control unit;
A display unit that is formed on one surface of the main body and displays a dust adhesion amount determined by the control unit so as to determine whether or not the first filter can be replaced. A cleaning machine having a filter state notification function.   2. The filter state according to claim 1, wherein the first detection unit is an analog pressure sensor that outputs a first measurement value of a voltage with respect to wind pressure passing through the first filter to the control unit. A cleaning machine with a notification function.   The first measurement value of the voltage measured by the first detection unit is amplified by the first amplification unit, and then converted into a digital signal and output to the control unit. A cleaner having the filter state notification function according to claim 2.   The filter state notification function, wherein the first detection unit is a digital pressure sensor that outputs a second measurement value of a pressure ratio to the wind pressure passing through the first filter to the control unit by a digital communication method. The cleaning machine according to claim 1, comprising:   The control unit includes a reference table in which a first pressure value matching the first measurement value of the voltage is stored, and the control unit performs a first measurement value of the voltage amplified and output from the first amplification unit. Is searched from the reference table for a first pressure value that matches the first measured value of the input voltage, and the amount of dust attached to the first filter is determined from the searched first pressure value, The cleaning machine having a filter state notification function according to claim 3, comprising a determination program for displaying the determination result on the display unit.   The control unit includes a reference table storing a second pressure value that matches the second measurement value of the pressure ratio, and the control unit performs a second measurement of the pressure ratio output from the digital pressure sensor. When a value is input, a second pressure value matching the second measured value of the input pressure ratio is searched from the reference table, and the amount of dust attached to the first filter is determined from the searched second pressure value. The cleaning machine having a filter state notification function according to claim 4, further comprising a determination program for displaying the determination result on the display unit. Airflow is formed on the rear side of the main body, and fine dust that is not filtered by the first filter is filtered on the inner side of the airflow so that the fine dust is not discharged outside the main body through the airflow. Configure a second filter to
The second detection unit configured to measure a wind pressure passing through the second filter and output the measured pressure to the control unit is provided between the motor and the air flow. A cleaner having the filter state notification function according to 1.   8. The filter state according to claim 7, wherein the second detection unit is an analog pressure sensor that outputs a first measurement value of a voltage with respect to wind pressure passing through the second filter to the control unit. 9. A cleaning machine with a notification function.   The first measurement value of the voltage measured by the second detection unit is amplified by the second amplification unit, converted to a digital signal, and output to the control unit. Item 9. A cleaner having the filter state notification function according to Item 8.   8. The digital pressure sensor, wherein the second detection unit is a digital pressure sensor that outputs a second measurement value of a pressure ratio with respect to wind pressure passing through the second filter to the control unit by a digital communication method. A cleaner having the filter state notification function described in 1.   The control unit includes a reference table in which a first pressure value matching the first measurement value of the voltage is stored, and the control unit performs a first measurement value of the voltage amplified and output from the second amplification unit. Is searched from the reference table for a first pressure value that matches the first measured value of the input voltage, and the amount of dust attached to the second filter is determined from the searched first pressure value, The cleaning machine having a filter state notification function according to claim 9, comprising a determination program for displaying the determination result on the display unit.   The control unit includes a reference table storing a second pressure value that matches the second measurement value of the pressure ratio, and the control unit performs a second measurement of the pressure ratio output from the digital pressure sensor. When a value is input, a second pressure value that matches the second measured value of the input pressure ratio is searched from the reference table, and the dust adhesion amount of the second filter is determined from the searched second pressure value. The cleaning machine having a filter state notification function according to claim 10, further comprising a determination program for displaying the determination result on the display unit.   The display unit is configured to display a first display that displays a warning or replacement at a normal state or a previous stage of replacement of the state of the first filter or the second filter by the control operation of the control unit. A cleaning machine having a filter state notification function according to claim 7.   The display unit is configured to display a second display that displays a warning or replacement of the first filter or the second filter in a normal or pre-replacement state with a figure added or subtracted by a control operation of the control unit. The cleaning machine having a filter state notification function according to claim 7.