JPS63216524A - Operation method and apparatus of electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum cleaner, and particularly to a vacuum cleaner that is operated optimally depending on the cleaning surface and the clogging state of the vacuum cleaner.

[Conventional technology]

General vacuum cleaners are said to have a constant length regardless of the surface being cleaned. Therefore, depending on the surface to be cleaned and the object to be cleaned, the suction force may be too strong or too weak, making it impossible to control the suction force optimally or comfortably for the user.

To solve this problem, for example, the input can be controlled depending on the surface to be cleaned, and the suction amount of the vacuum cleaner can be adjusted. The first possible means of adjusting the suction amount of a vacuum cleaner is to make the rotation speed of the drive motor variable. There are known motors that control the phase using a thyristor to change the rotation of the motor, and motors that are controlled using an inverter.

The vacuum cleaner described in Japanese Unexamined Patent Publication No. 60-242827 belongs to the latter category, and uses an inverter-driven brushless motor.

[Problem that the invention seeks to solve]

Although the above-mentioned publication describes an inverter-driven motor, it does not suggest a technical problem or solution for automatically operating the motor optimally depending on the cleaning surface or the clogged state of the filter.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum cleaner in which the suction amount is optimally controlled depending on the condition of the cleaning surface and the clogged condition of the filter.

[Means for solving problems]

The above object is to provide a method for operating a vacuum cleaner equipped with a filter that collects dust and a variable speed fan motor that provides suction power to the vacuum cleaner, in which the rotation speed of the fan motor is changed in short cycles during cleaning. sequentially detecting and estimating the surface to be cleaned or the object to be cleaned from a variation mode based on the detected change in rotational speed within a predetermined length of sampling time;
Next, there is a method of automatically adjusting the input of the fan motor in order to obtain the estimated rotation speed suitable for the cleaning surface, etc., or a circuit that provides power to the fan motor and a circuit that provides power to the fan motor and the actual rotation speed of the fan motor. It is equipped with a detection circuit and a base driver that controls the electric power given to the fan motor, and a microcomputer captures the rotation speed value obtained by the rotation speed detection circuit, and the microcomputer stores the rotation speed value in advance. This can be achieved by a device that compares the pattern of speed commands that have been taken and the value of the rotational speed taken in above, and gives a new speed command to the base driver based on this comparison value.

[Effect]

The rotation speed of the vacuum cleaner's fan motor (motor) changes depending on the properties of the surface to be cleaned, the properties of the object to be cleaned, or the degree of clogging of the filter, so the surface to be cleaned can be estimated from changes in the rotation speed, and the state of clogging can also be determined. Detectable.

Therefore, if the suction amount is controlled in accordance with the estimated cleaning surface and degree of clogging, optimal control can be achieved for various different types of cleaning.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 11. The present invention is based on the premise that a variable speed motor is used as a drive source for a vacuum cleaner (fan motor). Possible variable speed motors include AC commutator motors whose speed changes by controlling input, phase control motors, inverter-driven induction motors, reactance motors, and inverter-driven brushless motors. An example using a brushless motor that does not have mechanical brushes, therefore has a long life, and has good control response will be described.

FIG. 1 is a block diagram showing a schematic configuration of a control device, and FIG. 2 is a control circuit.

In the figure, 10 indicates an inverter control device.

14 is an AC power supply, which is rectified by a rectifier circuit 15,
The DC voltage Ed is smoothed by a capacitor 16 and supplied to the inverter circuit 20. The inverter circuit is a 120 degree conduction type inverter composed of transistors TR1 to TRs and freewheeling diodes D1 to Da connected to the respective transistors. The transistors TRI~TRa constitute a positive arm, and the transistors TRI~TRa constitute a positive arm;
T Rs constitutes a negative arm, and each flow period is pulse width modulated (PWM) at 120 electrical degrees.

R1 is the transistor TR4 to TRe forming the negative arm.
and the respective anode terminals of the freewheeling diodes D4-Do are relatively low resistances connected in common.

M is a brushless motor, which has a rotor R made of a two-pole permanent magnet and electrical pre-winding sources U, V, and W. The load current ID flowing through these windings U, V, and W is determined by the resistance Rz
It can be detected as a voltage drop. The speed control circuit of the brushless motor M includes a magnetic pole position detection circuit 12 that detects the magnetic pole position of the rotor R using a Hall element 11 or the like. The load current I mentioned above
o current detection circuit 17. The transistor T Rs ”
The main components include a base driver 9 that drives T Re, and a microcomputer 13 that drives the base driver based on the detection signal obtained from the circuit. 18 is an activation switch operated by an actual user.

In the above, the magnetic pole position detection circuit 12 includes the Hall element 11
The rotational position signal 12S of the rotor R is generated by receiving the signal from the rotor R. This rotational position signal 12S is used not only for switching the currents of the stator windings U, V, and W, but also as a signal for detecting the rotational speed. The microcomputer 13 calculates the speed by counting the number of rotational position signals 12S within a fixed sampling time.

The current detection circuit 17 detects a voltage drop across the resistor R1 to obtain a load current In, and obtains a current detection signal 17S using an A/D converter (not shown).

Further, the microcomputer 13 includes a central processing unit (CPtJ) 13-1. It includes a read only memory (ROM) 13-2 and a random access memory (RAM) 13-3, which are interconnected by an address bus, a data bus, a control bus, etc., although not shown. And ROM1
3-2 stores programs necessary to drive the brushless motor M, such as speed calculation processing, speed command import processing, speed control processing, etc.
Function table 22 that stores various speed control patterns
It is equipped with t&.

On the other hand, the RAM 13-3 is used to read and write various external data necessary for executing various programs stored in the ROM 13-2.

The transistors TR1 to TRa are each driven by the base driver 9 in response to a firing signal 13s processed and generated by the microcomputer 13. 21 is a voltage command circuit that generates a chopper signal to be described later.

In this type of brushless motor, the current flowing through the stator windings convects the output torque of the motor, so the output torque can be varied by changing the applied current.

That is, by adjusting the applied current, the output torque of the motor can be changed continuously and arbitrarily. or,
The rotation speed can be freely changed by changing the driving frequency of the inverter.

The vacuum cleaner of the present invention uses such a brushless motor.

On the other hand, the characteristics of the vacuum cleaner are as shown in FIG. In Figure 3, the horizontal axis is the air volume Q (rn
'/min). The vertical axis shows the suction power Pout indicating the suction performance, the motor rotation speed N, and the load current IO. The area between the two two-dot chain lines becomes the actual operating range.

When the filter is hardly clogged, the air volume Q is the maximum and the rotation speed N is the minimum.As the clogging progresses, the operating point gradually shifts to the left until the filter is completely clogged. When this happens, the air volume Q becomes the minimum, the rotation speed N becomes the maximum, and the minimum operating point is reached. In addition, the suction power Pouv
decreases after the maximum suction power PMIIX, regardless of whether the amount of clogging is large or small.

Therefore, one of the main features of the present invention is to detect the clogging state of the filter without using a special sensor.

By controlling the vacuum cleaner to the optimum speed (rotation speed) according to the amount of clogging, the suction power Pout can be improved, and it can also contribute to the proposal of a highly efficient vacuum cleaner.

Next, a method for detecting the state or type of the surface to be cleaned will be described below. The present invention focuses on the fact that the minimum and maximum rotation speeds or average rotation speeds, as well as the fluctuation state of the rotation speed, change on the cleaning surface, estimates the cleaning surface from the rotation speed, and performs operational control that is optimal for the estimated cleaning surface. This is what we are trying to do.

FIGS. 4(A) and 4(B) both show variations in the rotational speed of the motor when cleaning Tatami, and were confirmed through experiments. FIG. 4(A) shows the case where the filter is not clogged and the air volume Q is large.
Figure (B) shows a case where the filter is clogged and the air volume Q is small. As is clear from these figures, when cleaning with a vacuum cleaner with a large air volume, the rotation speed of the motor changes from the minimum rotation speed N11 to the maximum rotation speed N12. On the other hand, when cleaning is performed using a clogged vacuum cleaner, the rotation speed similarly changes from the minimum rotation speed N1a to the maximum rotation speed N14. As is clear from the comparison between the two, in the case of a clogged vacuum cleaner, the minimum rotation speed N1a is higher than the minimum rotation speed N11 without clogging, and the maximum rotation speed Nt is also higher than N12. Therefore, for example, if the minimum rotation speed Nzt is R
If it is stored in the OM 13-2 or RAM 13-3 and compared with the minimum rotational speed N13 during actual operation, the clogged state of the filter can be detected. Note that the reference value of the rotation speed stored in the ROM or RAM is the N
Not 11, but Ntz, N13. The same applies to N14. If the clogging is severe, the difference in rotational speed will be large, so increase the input to increase the rotational speed according to this difference.

The desired suction force of the vacuum cleaner can be obtained, and the suction power Pout can also be improved.

As described above, the rotational speed of the vacuum cleaner varies depending on the clogged condition of the filter, but in reality, it is greatly influenced by the surface to be cleaned. Since the cleaning surface changes instantaneously from the floor to the carpet or from the tatami to the curtain during one cleaning, from a time cycle perspective, fluctuations in the rotation speed can occur during a change in the cleaning surface, that is, during - times of cleaning. However, this can also be detected if the sampling time is determined appropriately.

This state is shown in FIG. In FIG. 5, the horizontal axis represents the surface or object to be cleaned, and the vertical axis represents the rotational speed. There are various surfaces and objects to be cleaned, but here we show four typical ones: tatami mats, carpets, sofas, and curtains.

In this figure, the solid line indicates the rotation state when the filter is not clogged, and the dotted line indicates the rotation state when the filter is clogged. i.e. 5
Tatami has the lowest rotation speed, followed by jutan, sofa, and curtain. This tendency is the same regardless of the clogging state. However, as clogging progresses, the difference in rotational speed tends to decrease even if the type of cleaning surface changes.

Although the rotational speeds N1 to N4 on each surface vary even when cleaning each surface, they indicate the minimum rotational speed or average rotational speed. If a vacuum cleaner is operated for a long time in a closed state, air will not flow inside and heat will not be dissipated, leading to a risk of burnout due to temperature rise.To avoid this, a bypass path is installed in the main air passage. It is being established. Normally, this bypass path takes in outside air from other than the suction port, sends cooling air to an electric blower, cools the inside, and then exhausts the air. The bypass valve operation indication in Figure 5 shows the position at which the valve that opens the bypass passage operates when the suction port is completely blocked, and the rotation speed does not increase beyond this point, acting as a protection device. This is what is shown.

In this way, since the number of rotations varies depending on the surface to be cleaned and the object being cleaned, as well as variations in the state of clogging, it is possible to accurately detect the state of clogging and operate the vacuum cleaner optimally according to the surface to be cleaned and the object to be cleaned. In order to make it happen.

On the other hand, it is necessary to detect the surface to be cleaned and the object to be cleaned.

Next, a method for detecting cleaning surfaces and objects will be explained.

FIG. 6 shows the variation mode of the rotation speed for each cleaning surface and object when cleaning with a vacuum cleaner using a non-clogging filter. That is, in FIG. 6 as well as in FIG. 5, the horizontal axis represents the cleaning surface and the vertical axis represents the number of revolutions. In particular, the variation modes M1 to M4 shown in circles show how the rotational speed changes during cleaning for each cleaning surface, and the horizontal axis is the time axis.

As is clear from this figure, when the surface to be cleaned is tatami, the minimum number of revolutions is Nil and the maximum number of revolutions is N12, and the fluctuation in the number of revolutions within the predetermined sampling time is small. The minimum rotation speed at this time is N1 shown in FIG.

For jutan, minimum rotation speed NZ1, maximum rotation speed N
In L2, this difference is within the same sampling time as above,
This is larger than in the case of Tatami. The minimum rotation speed at this time is N2.

Although the modes of rotational speed fluctuation of the Tatami and Jutan differ in the minimum and maximum variation difference in average rotational speed, the vibration waveforms differ by more than 1.

For sofas, minimum rotation speed Na1, maximum rotation speed Naz
This difference is even larger within the same sampling time than in the case of jutan. The minimum rotation speed at this time is N
It is 3. Incidentally, the waveform of the fluctuation mode in the case of this sofa has an aspect that is rather close to a rectangular wave.

For curtains, minimum rotation speed N41, maximum rotation speed N42
The difference is even larger than in the case of the sofa mentioned above within the same sampling time. The minimum rotation speed is N4. Also, the change mode of the curtain is similar to that of the sofa, and is close to a rectangular wave.

In addition, the respective minimum rotation speeds Nll, N21. N31
°N41 may be considered to be an open state in which the suction port is separated from the cleaning surface. However, the minimum rotation speed can also be used with the average rotation speed.

As is clear from the above, it is possible to detect the surface or object being actually cleaned from the average or minimum rotational speed and rotational fluctuation mode of the vacuum cleaner, and also to detect clogging conditions. It can be seen that both can be detected.

On the other hand, from the point of view of cleaning surface or object to be cleaned, it is the most difficult to remove dust from jutan, so if it is detected as jutan or an object similar to jutan,
It is best to set it to the highest rotation speed. Next, the number of rotations can be set in the order of Tatami, sofa, and curtain.

That is, in consideration of the ease with which dirt can be removed and the phenomenon and state in which the suction mouth sticks to the surface to be cleaned, it is preferable to assume the rotation speed as described above.

That is, since the surface to be cleaned, the object to be cleaned, or the clogging state can be detected from the above-mentioned FIG. 6, etc., it can be seen that if the optimum rotation speed is set in accordance with this, cleaning can be performed in accordance with the surface to be cleaned.

Next, specific control means will be explained.

FIG. 7 shows the ROM 13-2 of the microcomputer 13.
Specifically, the function table 22 is a control pattern stored in the machine according to each surface to be cleaned. In this figure, the horizontal axis is the degree of clogging, and the vertical axis is the speed command N. Based on the above-mentioned required number of rotations, the number of rotations is set in the order of sewage, tatami, sofa, and curtain, and the number of rotations is increased as the clogging progresses. is set to . Thereby, the functions in the function table 22 are automatically set according to the surface to be cleaned. The cleaning surface such as deutan does not necessarily have to be deutan, and the deutan function can be considered to be used when the cleaning surface has properties similar to deutan.

The same can be said for Tatami, sofas, and curtains.

Further, by calculating N speed commands according to the degree of clogging, in addition to the estimation of the cleaning surface described above, N speed commands according to the degree of clogging can be obtained, and optimal control can be achieved.

FIG. 8 shows the contents of the processing executed in the microcomputer 13, and shows the procedure for obtaining the speed command N depending on the surface to be cleaned and the degree of clogging.

The processor uses the position detection signal 12S to calculate and obtain the motor's momentary rotational speed (speed).

In process (2), the maximum rotational speed Nwax and the minimum rotational speed NmIn within the sampling time T are detected.

In process (2), the mode of rotational vibration, that is, the frequency and amplitude within the sampling time, is stored in advance in the ROM13-
The vibration mode stored in 2, (speed fluctuation mode) and the rotation speed N@@z and N m r
The cleaning surface is estimated and the degree of clogging is determined from n.

In process (2), a predetermined value corresponding to clogging is selected from a function table selected from the surface to be cleaned and the degree of clogging, and N speed commands are obtained in accordance with this value.

A control circuit that implements this processing method will be explained based on FIG.

Although various types of ASR or ACR constant speed variable speed control systems are possible, a closed loop voltage control system is shown here.

In the figure, when the user of the vacuum cleaner closes the start switch 18, the brushless motor is started by taking in the "a rotation command" and performing start-up processing.Then, when the rotation speed reaches a predetermined speed, the start-up process ends. After the startup process is completed,
Move to estimation of cleaning surface and detection of degree of clogging.

The microcomputer 13 in FIGS. 1 and 2 receives the position detection signal 12S from the magnetic pole position detection circuit 12 and performs the speed calculation process in process I in FIG. a x and minimum rotation speed N a
Detect i n, and further, based on this result, process ■
The cleaning surface is estimated and the clogging state is determined. Furthermore, depending on the surface to be cleaned and the clogging condition in the process ■,
Select a predetermined function table with the switch 23, and further,
N speed commands are obtained based on predetermined speed command values on a function table selected according to the degree of clogging of the filter. The speed command N is converted into a voltage command V* by a gain, and is further input to a D/A converter.

The output of this D/A converter is compared with the output of a triangular wave generation circuit provided separately by a comparator provided at the next stage, and an output corresponding to the difference is provided to the base driver 9. The base driver 9 inputs a voltage to the brushless motor M based on the voltage command determined in the previous stage.

In this way, the brushless motor M is rotated at the speed command N rate depending on the surface to be cleaned and the degree of clogging.

FIG. 9 shows a brushless motor M controlled as described above.
This figure shows the performance curve of a vacuum cleaner (electric blower) when used as a drive motor for a vacuum cleaner, and is similar to FIG. 3 described above.

In the figure, the dotted line indicates a case where the filter is not clogged, and the solid line indicates a case where the filter is clogged. As is clear from this figure, if the clogging of the filter progresses, if this is detected and the rotation speed is increased according to the degree of clogging, the suction power Pout decreased due to the clogging, as shown by the solid line. can be raised as shown by the solid line, and a highly efficient vacuum cleaner can be obtained.

FIG. 10 similarly shows changes in performance depending on the surface to be cleaned, and the suction power P required depending on the surface to be cleaned. ut %
FIG. 3 is a diagram showing how the rotational speed N and load current In change. Then, from a function table corresponding to the surface to be cleaned, control is performed so as to give an optimum number of revolutions N to match the characteristics according to the clogging state.

It goes without saying that control of the vacuum cleaner is achieved not only by the brushless motor M, but also by a variable speed motor.

FIG. 11 shows a phase-controlled AC commutator motor. In the figure, 24 is the field winding 24A and the armature 2.
This is an AC commutator motor consisting of 4B. This AC commutator motor 24 includes an AC power supply 14 and a phase control device 25 including a control element such as a triac, FLS, or thyristor.
connected via. The firing angle of the gate of the control element of the phase control device 25 is controlled by a driver 27 similar to the driver 9 shown in FIG. The microcomputer 13 also has the same processing function as the one described above, and calculates the maximum rotation speed N within the sampling time based on rotation information (mainly rotation speed information) obtained from the rotation detector 26.
The cleaning surface is estimated from +aaX and the minimum rotational speed N m I n, and the clogging state is also taken into account to generate the gate signal for the control element. The specific processing content of the microcomputer is the same as that shown in FIG. 8, and a vacuum cleaner with an optimal suction state can be obtained according to the estimated cleaning surface and clogging state, and there is no decrease in efficiency.

As described above, according to the present invention, it is possible to obtain a vacuum cleaner with optimal suction performance depending on the surface to be cleaned and the clogging state of the filter, but the surface to be cleaned cannot be estimated from the rotation speed. For some reason, if it is presumed to be "patatami", it is not necessarily "tatami".In other words, it can be said that the cleaning surface is the same as "tatami" or in a similar state to "tatami".

In any case, the rotational speed is controlled to match the condition of the cleaning surface and to compensate for the reduced suction performance due to clogging, so optimal control of the vacuum cleaner is automated.

As is clear from the above, pressure detection is unstable and control can be performed depending solely on the rotational speed, so the hardware configuration is extremely simple.

That is, since the rotation speed can be detected by directly using the signal from the Hall element 11 of the magnetic pole position detection circuit, which is commonly used in brushless motors, a so-called sensorless vacuum cleaner can be obtained.

〔Effect of the invention〕

As described above, in a vacuum cleaner equipped with a filter and a variable speed fan motor, the rotation speed of the fan motor is sequentially detected at short intervals during cleaning, and the rotation speed of the fan motor is detected within a predetermined sampling time. In order to estimate the surface to be cleaned or the object to be cleaned from the variation mode based on the change in the rotational speed, and then set the rotational speed to be suitable for the estimated cleaning surface, etc.

The present invention proposes a method for automatically adjusting the input of the fan motor, or a device for realizing this method,
According to these methods and devices, the object or surface to be cleaned with the vacuum cleaner is automatically estimated, and the rotation speed of the vacuum cleaner is corrected to the rotation speed that matches the estimated object. It allows for comfortable cleaning with the optimal suction power that suits the object.

Furthermore, since the degree of clogging of the filter can also be detected, in addition to the above, the suction force can be controlled according to the degree of clogging, making it possible to provide a vacuum cleaner that is extremely easy to clean.

Furthermore, since the rotation speed in the specific configuration is detected based on the detection signal of the magnetic pole position detector that is originally provided for driving the motor, a special sensor is not required.
This also has the effect that it can be realized with a very simple configuration.

[Brief explanation of the drawing]

FIG. 1 is a control block diagram of a vacuum cleaner drive device showing an embodiment of the present invention, FIG. 2 is a block diagram mainly showing the motor control section, FIG. 3 is a performance curve diagram of the vacuum cleaner, and FIG.
The figure shows the variation of rotation speed due to filter clogging.
The figure shows the fluctuation of the rotation speed when taking into account the surface to be cleaned and the clogged state of the filter, Figure 6 shows the difference in the variation mode of the rotation speed depending on the surface to be cleaned, and Figure 7 shows the variation of the rotation speed depending on the surface to be cleaned. FIG. 8 is a diagram showing the processing contents executed by the microcomputer; FIG. 9 is a performance curve diagram depending on the presence or absence of filter clogging; FIG. 10 is a performance curve diagram for cleaning surfaces; The figure is a control block diagram showing another embodiment.

Claims (1)

[Claims] 1. A method for operating a vacuum cleaner equipped with a filter that collects dust and a variable speed fan motor that provides suction power to the vacuum cleaner, comprising: controlling the rotational speed of the fan motor during cleaning; The surface to be cleaned or the object to be cleaned is estimated from the variation mode based on the detected change in the rotational speed within a predetermined sampling period by sequential detection in short cycles, and then a method suitable for the estimated cleaning surface, etc. A method for operating a vacuum cleaner, characterized in that the input to the fan motor is automatically adjusted to achieve a rotation speed of the fan motor. 2. In a method of operating a vacuum cleaner equipped with a filter that collects dust and a variable speed fan motor that provides suction power to the vacuum cleaner, the rotation speed of the fan motor is continuously adjusted in short cycles during cleaning. The fan motor input is detected, the surface to be cleaned or the object to be cleaned is estimated based on the change in rotation speed within a predetermined sampling time, and the input of the fan motor is controlled according to a function table that matches the estimated surface to be cleaned. A method for operating a vacuum cleaner, characterized in that the selected function table is corrected depending on the clogging state of the filter. 3. In either claim 1 or 2, the cleaning surface or object to be cleaned is estimated by comparing the actual speed fluctuation mode with a plurality of fluctuation modes stored in advance, and determining the actual speed. A method for operating a vacuum cleaner, characterized in that the method is carried out by selecting one of the stored fluctuation modes that matches or approximates the fluctuation mode. 4. The device according to claim 2, characterized in that the clogging state of the filter is estimated by comparing a predetermined value with the value of the rotational speed during actual operation. How to operate a vacuum cleaner. 5. In either claim 1 or 2, the estimation of the surface to be cleaned, the object to be cleaned, or the clogging state of the filter is performed based on the value of the rotational speed and the rotational speed. A method for operating a vacuum cleaner, characterized in that the operation is performed based on fluctuations in the voltage. 6. In a vacuum cleaner equipped with a filter that collects dust and a fan motor that provides suction power to the vacuum cleaner, this vacuum cleaner detects the actual rotation speed of the fan motor and calculates the detected rotation speed. Based on the speed value, a speed command is given to the fan motor according to the surface to be cleaned, the object to be cleaned, and the clogging state of the filter, and this speed command is obtained by the following processing step. How to operate a vacuum cleaner. Process I: Calculate the rotation speed N. Processing II...Maximum rotation speed N_m within sampling time
Find _a_x and the minimum rotation speed N_m_i_n. Process III: Estimating the surface to be cleaned and calculating the degree of clogging of the filter from N_m_a_x and N_m_i_n. Process IV: One function table is selected from a plurality of function tables, and a speed command N* is output based on this function table. 7. A method for operating a vacuum cleaner according to claim 6, wherein the speed command is a voltage command (V*) or a current command. 8. The method of operating a vacuum cleaner according to claim 1 or 2, wherein the fan motor is driven by a brushless motor. 9. The method according to claim 8, wherein the original signal for speed detection is obtained by a magnetic pole position detector of a brushless motor. . 10. In a vacuum cleaner equipped with a filter that collects dust and a fan motor that provides suction power to the vacuum cleaner, a circuit that supplies power to the fan motor and a circuit that detects the actual rotation speed of the fan motor. , a base driver for controlling the electric power given to the fan motor, the rotation speed value obtained by the rotation speed detection circuit is taken in by a microcomputer, and the microcomputer reads a speed command stored in the fan motor in advance. A vacuum cleaner operating device characterized in that the pattern is compared with the rotational speed value taken in above, and a new speed command is given to the base driver based on this comparison value. 11. In the apparatus according to claim 10, the speed command pattern is stored in a ROM of a microcomputer as a plurality of function tables suitable for a plurality of surfaces to be cleaned, and the actually detected rotational speed value and An operating device for a vacuum cleaner, characterized in that the one function table is selected based on the fluctuation, and the speed command is obtained from the selected function table. 12. The vacuum cleaner operating device according to claim 10, wherein the speed detection circuit is a magnetic pole position detection circuit that detects the magnetic pole position of the motor. 13. The vacuum cleaner operating device according to claim 11, wherein the selected function table is corrected according to a clogging state.