JPH0568661A - Driving controller of vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide the driving controller of a vacuum cleaner for setting automatically to prescribed power, in the case it is desired to clean and scrub carefully especially a carpet, etc., in the course of regular cleaning. CONSTITUTION:A rotation of wheel for rotating by following a movement of a brush part is detected by converting it to the number of pulses by a movement sensor 23, and by a pulse signal from the brush movement sensor 23, a moving distance of the brush part is calculated by an arithmetic means 25, and in the case a fact that the moving distance of the brush part calculated by the arithmetic means 25 becomes a prescribed distance or below is continued by a prescribed number of times by a driving control means, it is decided to be a prescribed cleaning mode and an input of an air blower motor 8 is set to a prescribed value, and also, in the case the distance becomes a second prescribed distance or above being larger than a first prescribed distance, it is decided to be a regular cleaning mode and the air blower motor 8 is subjected to driving control, and between a first prescribed distance and a second prescribed distance, the cleaning mode is not changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for an electric vacuum cleaner used in general households.

[0002]

2. Description of the Related Art FIG. 15 shows, for example, JP-A-2-24312.
It is a circuit diagram which shows the drive control circuit of the conventional vacuum cleaner described in the publication No. 5, which is a power control element (triac) for supplying the voltage of the AC power supply E to the rotary brush motor 2 of the brush section 1. 3, the power supply control element 3 receives the output of the rotation sensor 5 that detects the rotation of the wheel 4.
And a current sensor 7 for detecting a current supplied to the rotary brush motor 2 from the AC power supply E, and controlling the voltage of the AC power supply E in the main body. A power supply control element (triac) 9 supplied to the motor 8, and a control signal generation circuit 1 for controlling the power supply control element 9 by receiving outputs from the current sensor 7 and the hand control unit 10.
1 is provided.

Next, the operation will be described.

When the brush portion 1 comes into contact with the cleaning surface and the user moves the brush portion 1, the wheels 4 rotate, whereby the rotation sensor 5 outputs a signal to the control signal generating circuit 6.

The control signal generation circuit 6 receives the output of the rotation sensor 5 and outputs a drive signal to the power supply control element 3, and the power supply control element 3 receives the drive signal and drives the voltage of the AC power supply E. Supply to the motor 2.

As a result, the rotary brush motor 2 rotates and the power brush rotates. Then, when the current supplied from the AC power source E to the rotary brush motor 2 is detected by the current sensor 7 and the output of the current sensor 7 is input to the control signal generation circuit 11, the control signal generation circuit 11 causes the power control element. (Triac) 9
The drive signal is output to. The power supply control element (triac) 9 drives the blower motor 8 at the rotation speed set by the hand control unit 10.

When the brush portion 1 is stopped on the cleaning surface, the wheels 4 are stopped, so that the output of the rotation sensor 5 is stopped, and the stop of the output of the rotation sensor 5 causes the control signal generation circuit 6 to perform a predetermined operation. When there is no signal from the rotation sensor 5 within the time (1 to 15 seconds), the drive signal to the power supply control element 3 is stopped.

As a result, the power supply control element 3 stops the output to the rotary brush motor 2, and the control signal generating circuit 11 causes the power supply control element (triac).
The drive signal to 9 is stopped, and the blower motor 8 is stopped.

[0009]

The conventional drive control device for the electric vacuum cleaner is constructed as described above, and the brush unit 1 is used.
Since the blower motor 8 is only turned on / off by moving / stopping, the operator has to manually select the desired power if he / she wants to clean the carpet etc. particularly carefully during normal cleaning. There is a problem that the effort is complicated.

The present invention has been made to solve the above-mentioned problems, and when a carpet or the like is to be particularly carefully and cleanly cleaned during normal cleaning, a predetermined power is automatically set. It is an object of the present invention to provide a drive control device for an electric vacuum cleaner.

[0011]

According to a first aspect of the present invention, there is provided a drive control device for an electric vacuum cleaner, wherein a cleaner main body having a blower motor for generating a suction force and a hose connected to the main cleaner are provided. The brush part connected to the tip of the part, the wheel that rotates with the movement of this brush part, the brush movement sensor that converts the rotation of this wheel into the number of pulses to detect, and the pulse signal from this brush movement sensor The calculation means for calculating the moving distance of the brush portion and the drive control means for controlling the drive of the blower motor based on the movement distance of the brush portion calculated by the calculating means are provided, and the drive controlling means is calculated by the calculating means. The moving distance of the brush is the first
When the predetermined cleaning mode continues for a predetermined number of times, the predetermined cleaning mode is determined, the input of the blower motor is set to a predetermined value, and the second predetermined distance larger than the first predetermined distance is exceeded. In this case, the blower motor is driven and controlled by determining the normal cleaning mode, and the cleaning motor is not changed between the first predetermined distance and the second predetermined distance.

According to a second aspect of the present invention, there is provided a drive control device for an electric vacuum cleaner, which is connected to a cleaner body having a blower motor for generating a suction force and a tip of a hose portion connected to the cleaner body. The brush part, the wheel that rotates with the movement of the brush part, the brush movement sensor that detects the rotation of the wheel by converting it into a pulse number, and the movement distance of the brush part by the pulse signal from the brush movement sensor. The calculation means and the drive control means for driving and controlling the blower motor based on the movement distance of the brush part calculated by the calculation means are provided, and the drive control means does not stop the brush part even after a predetermined time elapses. The configuration is such that the blower motor is stopped and controlled upon determining that an abnormal situation has occurred.

According to a third aspect of the present invention, there is provided a drive control device for an electric vacuum cleaner, which is connected to a cleaner body having a blower motor for generating a suction force, and a tip of a hose connected to the cleaner body. The brush part, the wheel that rotates with the movement of the brush part, the brush movement sensor that detects the rotation of the wheel by converting it into a pulse number, and the movement distance of the brush part by the pulse signal from the brush movement sensor. A calculation means for calculating, a drive control means for driving and controlling the blower motor based on the moving distance of the brush portion calculated by the calculation means, and a power brush driven by the brush motor for the brush portion, the pulse from the brush movement sensor The signal drives the power brush when the brush section has moved for a specified distance or more, and the brush is stopped after a specified time has elapsed after the brush section stopped moving. Wherein the stop control Shimota.

According to a fourth aspect of the present invention, there is provided a drive control device for an electric vacuum cleaner, which is connected to a cleaner body having a blower motor for generating suction force and a tip of a hose connected to the cleaner body. The brush part, the wheel that rotates with the movement of the brush part, the brush movement sensor that detects the rotation of the wheel by converting it into a pulse number, and the movement distance of the brush part is calculated from the signal from the brush movement sensor. And a drive control means for driving and controlling the blower motor based on the moving distance of the brush portion calculated by the calculating means, and the drive control means controls the moving distance of the brush portion calculated by the calculating means. It is characterized in that the input of the blower motor is set to the maximum level when the distance becomes the predetermined distance or less for a predetermined number of times.

[0015]

According to another aspect of the present invention, in the drive controller for the electric vacuum cleaner according to the present invention, the rotation of the wheel that rotates with the movement of the brush section is converted into the number of pulses by the brush movement sensor and detected. The moving distance of the brush section is calculated by the calculating means by the pulse signal, the blower motor is driven and controlled by the drive controlling means based on the moving distance of the brush section calculated by the calculating means, and the calculating means is calculated by the driving controlling means. The moving distance of the brush part is
When the predetermined cleaning mode continues for a predetermined number of times, the predetermined cleaning mode is determined, the input of the blower motor is set to a predetermined value, and the second predetermined distance larger than the first predetermined distance is set. When it becomes, the blower motor is drive-controlled by determining the normal cleaning mode, and the cleaning mode is not changed between the first predetermined distance and the second predetermined distance.
As a result, a predetermined power can be automatically set when a carpet or the like is to be cleaned particularly carefully during normal cleaning. According to another aspect of the invention, the drive control means converts the rotation of the wheel that rotates with the movement of the brush portion into a pulse number by the brush movement sensor and detects the rotation, and moves the brush portion by the pulse signal from the brush movement sensor. When the distance is calculated by the calculation means, the blower motor is drive-controlled by the drive control means based on the moving distance of the brush part calculated by the calculation means, and the brush control part does not stop even after a predetermined time has passed by the drive control means. By determining that an abnormal situation has occurred and stopping and controlling the blower motor, energy can be effectively used.

According to a third aspect of the present invention, in the drive control device, the rotation of the wheel that rotates with the movement of the brush portion is converted into the number of pulses by the brush movement sensor and detected, and the brush signal is output from the brush movement sensor. The moving distance of the brush portion is calculated by the calculating means, the blower motor is driven and controlled by the drive controlling means based on the moving distance of the brush portion calculated by the calculating means, and the brush is controlled by the pulse signal from the brush moving sensor by the driving controlling means. The energy can be effectively used by driving the power brush when it is determined that the part has moved by a predetermined distance or more, and stopping and controlling the brush motor a predetermined time after the brush part stops moving.

According to a fourth aspect of the present invention, in the drive control device for the electric vacuum cleaner, the rotation of the wheel that rotates with the movement of the brush connected to the tip of the hose connected to the cleaner body is rotated by the brush movement sensor. Converted to the number of pulses and detected, the moving distance of the brush portion is calculated by the calculating means by the pulse signal from the brush moving sensor, and the blower motor is driven by the drive controlling means based on the moving distance of the brush portion calculated by this calculating means. Drive control. At this time, when the movement distance of the brush portion calculated by the calculation means is less than or equal to the predetermined distance for a predetermined number of times, the drive control means sets the input of the blower motor to the maximum level, and particularly when cleaning the carpet or the like carefully. The predetermined power of can be set automatically.

[0018]

EXAMPLE 1 A description is given of an embodiment of the first aspect of the present invention.

As shown in FIG. 5, the electric vacuum cleaner 41 has the blower motor 8 of FIG. 1 to which electric power is supplied from the commercial power source in the main body 12, and the exhaust side of the blower motor 8 is exhausted. A mouth is opened in the main body 12.

A dust collection chamber is formed on the upstream side of the blower motor 8, and an intake port 43 is opened in the front part of the dust collection chamber. The intake port 43 has a flexible hose 44. The base end of is connected.

The hand control unit 15 is provided at the tip of the hose 44.
An extension pipe 45 is communicated with 5,
The brush portion 1 is connected to the tip of the extension pipe 45.

The electric vacuum cleaner, as shown in FIG.
The main body 12 is provided with a blower motor 8 with variable input power, and the blower motor 8 is supplied with power by a triac 14 as a power supply control element for controlling the voltage of the commercial power supply 13 to a predetermined voltage. There is.

The hand control unit 15 is provided with a constant voltage power supply circuit 16 for converting the voltage of the electric power from the AC power supply 13 into a predetermined value. From the constant voltage power supply circuit 16 to the microcomputer 17 (hereinafter referred to as CPU). Electric power is supplied to the (abbreviated) etc.

Further, the hand control section 15 has a CPU 17 for controlling the operation of each section.
7 is a BCR drive circuit 1 for controlling the triac 14.
8, a display device 19, a switch 20, a BCR drive circuit 22 for controlling a triac 21 as a power supply control element for controlling the voltage to the brush portion 1 to a predetermined voltage, and a terminal a are connected.

A brush movement sensor 23 for detecting the movement of the brush portion 1 is connected to the terminal a via the terminal b, and a brush motor 24 whose power source is controlled by the triac 21 is connected to the brush portion 1. It is arranged.

Further, as shown in detail in FIG. 2, the CPU 17 receives a signal from the brush movement sensor 23 to generate the brush portion 1.
Inversion detection means 2 for detecting that the moving direction of the
7 and a calculation means 25 for calculating a movement distance L for each movement speed V or stroke of the brush portion 1. The calculation means 25 has a blower motor 8 based on the calculated movement speed V or movement distance L. A drive control means 26 for controlling the drive is connected. The drive control means 26 controls the brush motor 24 so as to drive the power brush when the brush movement sensor 23 moves the brush unit 1.

On the other hand, as shown in detail in FIG. 3, the brush portion 1 is provided with two front wheels 29 and two rear wheels 30 for facilitating the movement of the brush body 28. By detecting the rotation of the rear wheel on one of the rear wheels 30,
A brush movement sensor 23 that detects movement of the brush unit 1 is provided.

Further, the brush motor 24 is provided in the brush unit 1.
Is provided, and the power brush 31 is rotatably supported.
A belt 32 is wound around the shafts of and so that the driving force of the brush motor 24 is transmitted to the power brush 31.

Further, the brush movement sensor 23 is shown in FIG.
As shown in (a), a rotary shaft 34 rotatably supported by a bearing 33 is provided in a groove 28a of the brush main body 28. The rotary shaft 34 comes into contact with the floor surface to rotate a rear wheel. 30 is fixed.

At one end of the rotary shaft 34, as shown in FIG.
As shown in FIG. 5, a slit disc 35 having a plurality of shading plates 35a is fixed, and is turned on or off by the shading plate 35a of the slit disc 35 facing the slit disc 35.
A transmissive optical sensor 36 is disposed.

Next, the operation of the configuration of the above embodiment will be described with reference to the pulse patterns of FIG. 6 and the flowcharts of FIGS.

As shown in the flowchart of FIG. 7, the drive control means 26 determines whether or not the brush portion 1 is moving by the movement data processing (step S1), and determines that the brush portion 1 is moving. If so, the movement information abnormality determination process (step S2) is performed, and if it is determined that the brush unit 1 has not moved, the stop state process (step S3) is performed.

When it is determined that the movement information is normal in the movement information abnormality determination processing (step S2),
When the movement information processing (step S4) is performed and it is determined that the movement information is abnormal in the movement information abnormality determination processing (step S2), transition processing to the cut mode is performed (step S5).

Then, when the drive control means 26 determines in the movement information processing (step S4) that the movement of the brush portion 1 has stopped, it performs the movement stop processing (step S6), and in the movement information processing (step S4). When it is determined that the movement of the brush unit 1 is continuing, a movement continuation process is performed (step S7).

Each processing will be described in detail below.

(I) Moving data processing (step S1) will be described with reference to the flowchart of FIG.

When the brush portion 1 comes into contact with the cleaning surface and the user moves the brush portion 1, the rear wheel 30 rotates, which causes the brush movement sensor 23 to output a pulse signal (see FIG. 6) to the calculating means of the CPU 17. Output to 25.

Then, the calculating means 25 counts the number of pulse signals of the output of the brush movement sensor 23 for a predetermined length of 1 cycle (100 msec) (step S101), and 100
Let P be the pulse count number in msec. 10
31 when the pulse count number of 0 msec is 31 or more
Is set to P (step S102).

Then, the drive control means 26 determines whether or not the start flag is "H" (step S103),
When it is determined that the start flag is “H”, ΔP is rewritten by setting a value obtained by subtracting POLd of the previous cycle from P of the current cycle as a new pulse displacement amount ΔP (step S10).
4).

If it is determined that the start flag is not "H", the drive control means 26 determines whether P = 0 (step S105). If it is determined that P = 0 is not satisfied,
The start flag is set to "H" (step S106), and the stop mode ST is set to "3" (step S10).
7), reset the stop mode timer (step S
108), and step S104 described above is performed. If it is determined that the start flag is "H", stop state processing (step S3) is performed.

Then, the drive control means 26 rewrites POLd (step S109), and P of the current cycle is the maximum Pma in the current stroke (one moving distance of the brush unit 1).
It is determined whether or not x is larger than x (step S110), and P of the current cycle is the current stroke (one movement operation of the brush unit 1).
If it is determined that the current maximum Pmax is greater than the maximum Pmax, the current cycle P is set as Pmax during the current stroke (step S11).
1).

Then, the stroke is incremented by setting the value obtained by adding P to the current stroke as the stroke (step S112).

When the stroke has a distance corresponding to 127 pulses, 127 pulses are taken as the stroke.

Further, the drive control means 26 determines whether or not the stroke is 16 pulses or more (step S113), and when the stroke is 16 pulses or more, sets the brush-on flag to "H" and turns on the brush motor 24. (Step S114), movement information abnormality determination processing (Step S114)
2) is performed, and when it is determined that the stroke is not 16 pulses or more, the movement information abnormality determination process (step S
Perform 2).

(II) Movement information abnormality judgment processing (step S
2) will be described with reference to the flowchart of FIG.

The drive control means 26 determines whether or not the movement information is abnormal, that is, whether the number of cycles is 96 or more (step S201), and when it is determined that the number of cycles is 96 or more, that is, the brush unit 1 Is not reversed for 9.6 seconds or more, transition processing to the cut mode (step S5)
If it is determined that the number of cycles is not 96 or more,
Mobile information processing (step S4) is performed.

(III) Stop state processing (step S3) will be described with reference to the flowchart of FIG.

The drive control means 26 uses the stop mode ST.
If it is determined that the stop mode ST is "0" (step S301), it is determined whether the stop mode timer is 1 second or longer, that is, 1 second or more has elapsed since the brush unit 1 was stopped. If it is determined that the stop mode timer is not longer than 1 second (step S302), the process returns to step S1.

If it is determined that the stop timer is longer than 1 second, the brush-on flag is set to "0", that is, the brush motor 24 is stopped (step S303), and the stop mode ST is set to "1" (step S304). Return to step S1.

On the other hand, when it is determined that the stop mode ST is "1", the drive control means 26 determines whether the stop mode timer has passed 1.1 seconds or more, that is, 1. It is determined whether 1 second or more has elapsed (stop S305), and the stop mode timer is set to 1.1.
If it is determined that more than a second has elapsed, the stroke short flag is set to "0" (step S306).

Then, the drive control means 26 sets the stop mode ST to "2" (step S307) and the stroke long flag to "L" (step S308),
The fuzzy data is cleared to the minimum power (step S309), and the process returns to step S1.

If it is determined in step S305 that the stop mode timer has not elapsed 1.1 seconds or more, the process returns to step S1.

Further, when it is determined that the stop mode ST is "2", the drive control means 26 determines whether or not the stop mode timer has passed 3 minutes or more, that is, 3 minutes or more have passed since the brush unit 1 stopped. If it is determined that the stop mode timer has elapsed for 3 minutes or more, a transition process to the cut mode is performed to stop the blower motor 8 (step S311), and step S311 is performed.
Return to 1. If it is determined that the stop mode timer has not elapsed for 3 minutes or more, the process returns to step S1.

(IV) Mobile information processing (step S4) is shown in FIG.
A description will be given along the flow chart of No. 1.

The reversal detecting means 27 is the brush movement sensor 2
1 cycle of a predetermined length (100 mse
It is determined whether or not the count number P of the pulse signal for each c) is P = 0 (step S401), and P = 0, that is, the brush unit 1
If it is determined that the process is stopped, the brush unit movement stop process is performed (step S402).

When it is judged that P = 0 is not satisfied, that is, the brush unit 1 is moving, the reversal detection means 27
Determines whether ΔPOLd> 0, that is, whether the speed of the brush unit 1 is accelerating in the previous cycle (step S40).
3), ΔPOLd> 0, that is, if it is determined that the speed of the brush unit 1 is accelerating in the previous cycle, ΔPOL
It is determined whether d> 0, that is, the speed of the brush unit 1 is accelerating in the current cycle (step S404).

Further, when ΔPOLd> 0, that is, when it is determined that the speed of the brush unit 1 is accelerating in the current cycle, the reversal detection means 27 sets the reading of P in the previous cycle as P (step S405), and P Is Pmax OLd
It is determined whether or not it is half or less of (the maximum value of P during the current stroke), that is, whether or not the brush unit 1 is reversed (step S406).

When it is determined that P is less than half of Pmax OLd (maximum value of P in the current stroke), that is, the brush portion 1 is inverted, the inversion detecting means 27 determines that the current cycle position is one cycle from the determination position. Since it is located at the position, P which is P of the previous cycle from the current stroke position
The data is corrected so that the position obtained by subtracting OLd is the reversal position (step S407).

Further, ΔP is added to P to return it to P in the current cycle (step S408), and the operation of step S402 is performed.

When it is determined in step S403 that the speed of the brush unit 1 is not accelerating in the previous cycle, it is determined in step S404 that the speed of the brush unit 1 is not accelerating in the current cycle, and In S406, P is Pmax OL
When it is determined that it is not less than half of d (the maximum value of P in the current stroke), that is, the brush unit 1 is not inverted, the drive control means 26 updates Pmax OLd and ΔP OLd (step S409), and moves the brush unit. Continuation processing is performed (step S410).

(V) Movement stop processing (step S6) will be described with reference to the flowchart of FIG.

The drive control means 26 determines whether or not the stroke is longer than a distance corresponding to 24 pulses (step S6).
01), if it is determined that the stroke is longer than the distance corresponding to 24 pulses, it is determined whether the stroke short flag is "3" (step S602).

When it is determined that the stroke short flag is "3", it is determined whether the stroke long flag is "H" (step S603), and it is determined that the stroke long flag is "H". The stroke short flag is set to "0" (step S60).
4).

Then, the drive control means 6 sets the stroke long flag to "H" (step S605), sets the P up flag to "L" (step S606), and performs fuzzy preprocessing (step S607).

Further, the drive control means 26 carries out post-processing of flag data (step S608), and returns to step 1.

When it is determined in step S602 that the stroke short-circuit flag is not "3", the operations in step S604 and thereafter are performed.

If it is determined in step S603 that the stroke long flag is not "H",
The operation after step S605 is performed.

Further, when it is determined in step S601 that the stroke is not longer than the distance corresponding to 24 pulses, the drive control means 26 invalidates the stroke (stroke = 1 pulse or 1 as the first predetermined distance).
When it is determined that the stroke is not invalid, it is determined whether the stroke short flag is "2" or less, that is, the first predetermined distance. It is determined whether the stroke of 16 pulses or less is less than 3 times (step S610).

When it is determined that the stroke short flag is not equal to or less than "2", that is, the predetermined cleaning mode (roughening mode) is determined, the drive control means 26 determines
The stroke long flag is set to "L" (step S61).
1), the brush-on flag is set to "H" (step S61)
2) The stroke short flag is set to "3" (step S613), the fuzzy data is cleared, and the input of the blower motor 8 is set to the maximum power (step S614).

If it is determined in step S609 that the stroke is invalid, then step S609 is performed.
The operation of 608 is performed.

If it is determined in step S610 that the stroke short-circuit flag is "2" or less, the drive control means 26 sets the stroke short-circuit flag to "+1" (step S615), and step S615 described above.
The operation of 608 is performed.

(VI) The movement continuation process (step S7) will be described with reference to the flowchart of FIG.

The drive control means 26 determines whether or not the stroke is longer than a distance corresponding to 24 pulses (step S7).
01), if it is determined that the stroke is longer than the distance corresponding to 24 pulses, it is determined whether the stroke short flag is "3" (step S702).

When it is determined that the stroke short flag is "3", it is determined whether the stroke long flag is "H" (step S703), and when it is determined that the stroke long flag is "H", The stroke short flag is set to "0" (step S70).
4) Return to step 1.

If it is determined in step S701 that the stroke is not longer than the distance corresponding to 24 pulses, that is, if the stroke is invalid, the process returns to step 1.

If it is determined in step S702 that the stroke short flag is not "3", the drive control means 26 determines whether the stroke long flag is "H" (step S705), and the stroke long flag is set. When it is determined to be “H”, the process returns to step 1.

The stroke long flag is "H".
If not, the P-up flag is set to "H" (step S706) and the operation of step S704 is performed. Second Embodiment Next, an embodiment according to the invention of claim 4 will be described. Since this embodiment has the same structure as the above-mentioned embodiment shown in FIGS. 1 to 5, the detailed description thereof will be omitted to avoid duplication.
The characteristic action will be described.

When the brush portion 1 comes into contact with the cleaning surface and the user moves the brush portion 1, the rear wheel 30 rotates, which causes the brush movement sensor 23 to output a pulse signal (see FIG. 6) to the calculating means of the CPU 17. Output to 25.

Then, the calculating means 25 calculates the moving speed V of the brush unit 1 for every predetermined amount of 100 msec by the pulse count number of 100 msec of the output of the brush moving sensor 23.

Further, the reversal detecting means 27 detects a sparse portion of the pattern of the pulse signal (see FIG. 6), determines that the sparse portion is one stroke of the brush unit 1, and detects the stroke. The delimiter position is output to the calculation means 25.

Then, the calculation means 25 calculates the movement distance L for each stroke and outputs it to the drive control means 26.

Further, the drive control means 26, based on the moving distance L of the brush portion 1 calculated by the calculating means 25, has a relationship between the moving distance L stored in advance in the memory 26a and the input of the blower motor 8 (FIG. 14). The blower motor 8 is driven and controlled in accordance with (See Reference).

When the moving distance L of the brush unit 1 becomes equal to or less than the predetermined distance for the predetermined number of times, it is determined that the desired portion is intensively cleaned, and the input power of the blower motor 8 is set. To the maximum.

The drive control means 26 drives the brush motor 24 to rotate the power brush 31 when the brush unit 1 is moving.

[0085]

As described above, according to the first aspect of the present invention, the rotation of the wheel that rotates with the movement of the brush portion is converted into the number of pulses by the brush movement sensor and detected. The moving distance of the brush portion is calculated by the calculating means based on the pulse signal from the sensor, the blower motor is drive-controlled by the drive controlling means based on the moving distance of the brush portion calculated by the calculating means, and the calculating means is operated by the drive controlling means. When the movement distance of the brush portion calculated by the means is equal to or less than the first predetermined distance for a predetermined number of times, the predetermined cleaning mode is determined, the input of the blower motor is set to a predetermined value, and the first If the second predetermined distance, which is larger than the predetermined distance, is exceeded, the normal cleaning mode is determined and the blower motor is drive-controlled, and the first predetermined distance and the second predetermined distance are set. Since the cleaning mode is not changed between separation and separation, if you want to clean the carpet, etc. with great care during normal cleaning, you can automatically set it to the desired power to obtain the desired power. The time and effort of manual selection can be omitted.

According to the second aspect of the present invention, the rotation of the wheel which rotates with the movement of the brush portion is converted into the number of pulses by the brush movement sensor and detected, and the pulse signal from the brush movement sensor detects the rotation of the brush portion. The moving distance is calculated by the calculating means, the blower motor is driven and controlled by the drive controlling means based on the moving distance of the brush portion calculated by the calculating means, and the brush portion does not stop even after a predetermined time has passed by the driving controlling means. In this case, since it is configured to stop the blower motor when it judges that an abnormal situation has occurred,
Energy can be used effectively.

According to the third aspect of the invention, the rotation of the wheel that rotates with the movement of the brush portion is converted into the number of pulses by the brush movement sensor and detected, and the pulse signal from the brush movement sensor detects the rotation of the brush portion. The moving distance is calculated by the calculating means, the blower motor is drive-controlled by the drive controlling means based on the moving distance of the brush portion calculated by the calculating means, and the drive controlling means controls the power brush to be driven by the brush motor by the brush motor. The drive control means is configured to drive the power brush when the brush portion moves by a brush movement sensor for a predetermined distance or more, and to stop and control the brush motor after a predetermined time elapses after the brush portion stops moving. Therefore, the energy can be effectively used.

According to the fourth aspect of the invention, the rotation of the wheel that rotates with the movement of the brush portion connected to the tip of the hose portion connected to the cleaner body is converted into the number of pulses by the brush movement sensor. When the moving distance of the brush portion is detected by the calculating means based on the signal from the brush moving sensor and the moving distance of the brush portion calculated by the calculating means is equal to or less than the predetermined distance for a predetermined number of times, the blower motor Since I configured it to maximize the input of,
If you want to carefully and carefully clean a carpet or the like during normal cleaning, you can omit the trouble of manually selecting the desired power and automatically set the maximum power.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a drive control circuit of an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a CPU according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a configuration of a brush unit according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a configuration of a brush movement sensor according to an embodiment of the present invention, where (a) shows the entire sensor and (b) shows a slit disk.

FIG. 5 is a diagram showing an appearance of the electric vacuum cleaner according to the embodiment of the present invention.

FIG. 6 is a diagram showing a pulse pattern of a brush movement sensor according to an embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the present invention.

FIG. 8 is a flowchart showing the operation of the present invention.

FIG. 9 is a flowchart showing the operation of the present invention.

FIG. 10 is a flowchart showing the operation of the present invention.

FIG. 11 is a flowchart showing the operation of the present invention.

FIG. 12 is a flowchart showing the operation of the present invention.

FIG. 13 is a flowchart showing the operation of the present invention.

FIG. 14 is a diagram showing a relationship between a moving distance of a brush portion and an input of a blower motor according to an embodiment of the invention described in claim 2;

FIG. 15 is a circuit diagram showing a drive control circuit of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brush part 8 Blower motor 12 Main body part (vacuum cleaner main body) 23 Brush movement sensor 25 Computing means 26 Drive control means 30 Wheels

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yutaka Takahashi, 1728 Omaeda, Omaeda, Hanazono-cho, Saitama-gun, Saitama Prefecture 1728 Mitsubishi Electric Home Appliances Co., Ltd. (72) Takahiro Yanagida, 1728, Omaeda, Hanazono-cho, Saitama-gun Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor, Koji Ren, 1728 Omaeda, Omaeda, Hanazono-cho, Saitama-gun Saitama Prefecture 1 (72) Inventor, Akihiro Iwahara, 1728, Omaeda, Hanazono-cho, Saitama-gun Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor Masafumi Nagata 2-14-40 Ofuna, Kamakura-shi, Kanagawa Mitsubishi Electric Corporation Living Systems Laboratory (72) Inventor Yosaku Otsuka 2--14, Ofuna, Kamakura, Kanagawa No. 40 Mitsubishi Electric Corporation Life Systems Research Center

Claims (4)

[Claims] 1. A drive control device for an electric vacuum cleaner, comprising: a cleaner body containing a blower motor that generates a suction force; and a brush section connected to a tip of a hose section connected to the cleaner body. Wheels that rotate with the movement of the brush section, a brush movement sensor that detects the rotation of the wheel by converting the number of pulses into a pulse number, and a calculation unit that calculates the movement distance of the brush section based on the pulse signal from the brush movement sensor, Drive control means for driving and controlling the blower motor based on the movement distance of the brush portion calculated by the calculation means, wherein the drive control means has a movement distance of the brush portion calculated by the calculation means that is a first predetermined distance. When the following is continued for a predetermined number of times, it is determined that the cleaning mode is the predetermined cleaning mode, the input of the blower motor is set to a predetermined value, and a value larger than the first predetermined distance is set. If the distance exceeds 2
Drive of an electric vacuum cleaner, which is determined to be a normal cleaning mode, drives and controls the blower motor, and does not change the cleaning mode between the first predetermined distance and the second predetermined distance. Control device. 2. A drive control device for an electric vacuum cleaner, comprising: a cleaner body containing a blower motor that generates a suction force; and a brush section connected to a tip of a hose section connected to the cleaner body, Wheels that rotate with the movement of the brush section, a brush movement sensor that detects the rotation of the wheel by converting the number of pulses into a pulse number, and a calculation unit that calculates the movement distance of the brush section based on the pulse signal from the brush movement sensor, Drive control means for driving and controlling the blower motor based on the movement distance of the brush portion calculated by the calculation means, and the drive control means causes an abnormal situation when the brush portion does not stop even after a predetermined time elapses. A drive control device for an electric vacuum cleaner, which determines that the blower motor has been stopped. 3. A drive control device for an electric vacuum cleaner, comprising: a cleaner body containing a blower motor that generates a suction force; and a brush part connected to a tip of a hose part connected to the cleaner body. Wheels that rotate with the movement of the brush section, a brush movement sensor that detects the rotation of the wheel by converting the number of pulses into a pulse number, and a calculation unit that calculates the movement distance of the brush section based on the pulse signal from the brush movement sensor, A drive control unit that drives and controls the blower motor based on the movement distance of the brush unit calculated by the calculation unit, and a power brush that is driven by the brush motor in the brush unit, the drive control unit, If it is determined by the pulse signal that the brush section has moved more than a specified distance, the power brush is driven and after the brush section stops moving, A drive control device for an electric vacuum cleaner, which stops and controls a brush motor after a lapse of a fixed time. 4. A drive control device for an electric vacuum cleaner, comprising: a cleaner body containing a blower motor that generates a suction force; and a brush section connected to the tip of a hose section connected to the cleaner body. A wheel that rotates with the movement of the brush portion, a brush movement sensor that converts the rotation of the wheel into a pulse number for detection, a calculation unit that calculates the movement distance of the brush portion based on a signal from the brush movement sensor, And a drive control means for driving and controlling the blower motor based on the moving distance of the brush portion calculated by the calculating means, and the drive controlling means is such that the moving distance of the brush portion calculated by the calculating means is equal to or less than the predetermined distance and continues for a predetermined number of times. In this case, the drive control device of the vacuum cleaner is characterized in that the input of the blower motor is set to the maximum level.