JP2001224544A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner of favorable usability capable of conducting motor control in accordance with a floor surface. SOLUTION: This vacuum cleaner comprises a main body 1 having a fan motor 2 to suck dust, and a floor surface discriminating means 4 to discriminate a floor surface, the floor surface discriminating means 4 is composed of a discharge air quantity detecting means 4a to detect quantity of discharge air of the fan motor 2, and discrimination of the floor surface is conducted based on result of detection by the discharge air quantity detecting means 4a, so discrimination of the floor surface can be conducted in a simple constitution, thereby a lowcost vacuum cleaner of favorable usability can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for controlling a fan motor or a nozzle motor by identifying a floor surface.

[0002]

2. Description of the Related Art Conventionally, a vacuum cleaner is of a type that controls a fan motor or a nozzle motor irrespective of the type of floor surface, and a special floor surface identification means or a suction pressure of a main body is detected. A device for performing floor identification is known. Hereinafter, a conventional example will be described with reference to FIGS.

[0003] As shown in the figure, 101 is a cleaner main body (hereinafter referred to as the main body), 102 is a hose, 103 is a hand operation unit, 104 is an extension tube, and 105 is a suction tool. A fan motor 106 and a fan motor 10
And a driving unit 108 for driving the fan motor 106.

The operation of the above configuration is as follows.
As shown in FIG. 19, when the hose 102, the extension pipe 104, and the suction tool 105 are connected to the cleaner main body 101, and are connected to a commercial power supply and the hand operation unit 103 is operated, a signal is output from the control unit 107, and the driving unit 108 As a result, the fan motor 106 starts rotating, and the vacuum cleaner starts operating.

As shown in FIG. 20, a rotating brush 109, a nozzle motor 110 for driving the rotating brush 109, and a rotating speed of the rotating brush 109 are further increased in order to scrape up dust on the floor. Some have a built-in rotation speed detecting means 111 for detection.

The operation according to the above configuration is as follows.

As shown in FIG. 20, a nozzle motor 110 drives a suction tool 105 in contact with a floor surface, and a rotating brush 109 rotates. This rotation speed is detected by a rotation speed detecting means 111 composed of a light emitting element and a light receiving element, and the fan motor 106 or the nozzle motor 1
The operation is performed by determining the optimal amount of power to be supplied to the power supply 10.

As another means for detecting the number of revolutions,
There is also a method using an encoder.

[0009]

However, in a system in which the type of floor is not identified as in the conventional example, the motor control according to the type of floor is not performed, and the user sets the motor for each floor. It is not convenient for the user, such as changing the input.

[0010] Further, in a method of detecting the number of rotations using a light emitting element or a light receiving element, the structure of the suction tool is complicated and expensive.

An object of the present invention is to provide a vacuum cleaner which identifies a floor surface with a simple configuration and an inexpensive floor surface identification method and automatically controls a motor corresponding to the floor surface in order to solve the above problems. With the goal.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a cleaner body having a fan motor for sucking dust, and a floor surface identifying means for identifying a floor surface. The discriminating means is constituted by the exhaust air flow detecting means for detecting the exhaust air flow of the fan motor, and the floor surface is identified by the detection result of the exhaust air flow detecting means. Therefore, the floor surface can be identified with a simple configuration, and it is inexpensive and convenient. A good vacuum cleaner can be realized.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION
A cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor surface, wherein the floor identification means is constituted by exhaust air volume detection means for detecting an exhaust air volume of the fan motor; Since the floor surface identification is performed based on the detection result of the exhaust air volume detection means, the floor surface can be identified with a simple configuration,
An inexpensive and easy-to-use vacuum cleaner can be realized.

According to a second aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor, wherein the floor identification means is provided with the fan motor. And the floor is identified by the detection result of the current change detecting means, so that the floor can be identified with a simple configuration, and inexpensive and easy-to-use electricity can be obtained. A vacuum cleaner can be realized.

According to a third aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor, wherein the floor identification means is provided with the fan motor. It is composed of power amount change detection means for detecting a change in the power amount, and the floor surface is identified by the detection result of the power amount change detection means, so that the floor surface can be identified with a simple configuration,
An inexpensive and easy-to-use vacuum cleaner can be realized.

According to a fourth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor, wherein the floor identification means is provided with the fan motor. The rotation change detecting means for detecting the amount of change in the number of rotations is used, and the floor surface is identified based on the detection result of the rotation change detection means. Therefore, the floor surface can be identified with a simple configuration, and inexpensive and easy-to-use electricity A vacuum cleaner can be realized.

According to a fifth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a suction device, and floor identification means for identifying a floor, wherein the floor identification means is provided. Is constituted by load detecting means for detecting the load of the suction tool, and the floor surface is identified by the detection result of the load detecting means. Therefore, the floor surface can be identified with a simple configuration, and the inexpensive and easy-to-use vacuum cleaner is used. Can be realized.

According to a sixth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a suction device, and floor identification means for identifying a floor, wherein the floor identification means is provided. Is constituted by static electricity detecting means for detecting static electricity generated between the suction tool and the floor, and the floor is identified by the detection result of the static electricity detecting means, so that the floor can be identified with a simple configuration. An inexpensive and easy-to-use vacuum cleaner can be realized.

According to a seventh aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a rotary brush, a nozzle motor for driving the rotary brush, and an overcurrent flowing through the nozzle motor. A suction device having an overcurrent protection element for preventing the occurrence of an overcurrent, and a floor identification means for identifying a floor surface, wherein the floor identification means is constituted by a protection element voltage detection means for detecting a voltage of the overcurrent protection element. However, since the floor surface is identified based on the detection result of the protection element voltage detection means, the floor surface can be identified without using a special floor surface sensor, and an inexpensive and easy-to-use vacuum cleaner can be realized.

The invention according to claim 8 of the present invention provides a cleaner body having a fan motor for sucking dust, a rotating brush, a suction tool having a nozzle motor for driving the rotating brush, and driving the nozzle motor. Driving means for
A floor identification means for identifying a floor surface, wherein the floor identification means is constituted by a drive element voltage detection means for detecting a voltage of the drive means, and the floor identification is a detection result of the drive element voltage detection means. Therefore, the floor surface can be identified without using a floor sensor in particular, and an inexpensive and easy-to-use vacuum cleaner can be realized.

According to a ninth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor surface identification means, wherein the floor surface identification means is constituted by line voltage detection means for detecting a voltage of a supply line for supplying power to the nozzle motor, and the floor surface identification is performed by the line voltage detection means. Therefore, the floor surface can be identified without using a floor sensor in particular, and an inexpensive and easy-to-use vacuum cleaner can be realized.

According to a tenth aspect of the present invention, a floor surface is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor identification means,
The floor identification means is constituted by a temperature detection means for detecting the temperature of the nozzle motor, and the floor identification is performed by the detection result of the temperature detection means, so that the floor identification can be performed without using a special floor sensor. Thus, an inexpensive and easy-to-use vacuum cleaner can be realized.

According to the eleventh aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor identification means,
The floor surface identification unit is configured by a noise frequency detection unit that detects the frequency of a noise component included in the current supplied to the nozzle motor, and the floor surface identification is performed based on the detection result of the noise frequency detection unit. With the configuration, the floor surface can be identified, and an inexpensive and easy-to-use vacuum cleaner can be realized.

According to a twelfth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor identification means,
Since the floor surface identification means is constituted by noise change amount detection means for detecting a change amount of a noise component included in the current supplied to the nozzle motor, the floor surface identification is performed based on the detection result of the noise change amount detection means. The floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be realized.

According to a thirteenth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor identification means,
The floor surface identification means is constituted by sound detection means for detecting the sound of the suction tool, and the floor surface is identified based on the detection result of the sound detection means. A good vacuum cleaner can be realized.

According to a fourteenth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Floor identification means,
The floor surface identification means is constituted by a back electromotive force detection means generated by the rotation of the nozzle motor, and the floor surface is identified by the detection result of the back electromotive force detection means. Good vacuum cleaner can be realized.

According to the fifteenth aspect of the present invention, since the back electromotive force is detected by the voltage of the nozzle motor, the back electromotive force can be detected with a simple configuration, and the vacuum cleaner is inexpensive and easy to use. Can be realized.

In the invention according to claim 16 of the present invention, since the back electromotive force is detected by the supply current to the nozzle motor, the back electromotive force can be detected with a simple structure, and the inexpensive and easy-to-use electric power is used. A vacuum cleaner can be realized.

According to the seventeenth aspect of the present invention, since the back electromotive force is detected by the on-time of the current supplied to the nozzle motor, the back electromotive force can be detected with a simple configuration, and it is inexpensive and easy to use. A good vacuum cleaner can be realized.

According to the eighteenth aspect of the present invention, since the back electromotive force is detected by the off time of the current supplied to the nozzle motor, the back electromotive force can be detected with a simple configuration, and it is inexpensive and easy to use. A good vacuum cleaner can be realized.

According to the nineteenth aspect of the present invention, since the back electromotive force is detected by the voltage of the power supply line to the nozzle motor, the back electromotive force can be detected with a simple configuration.
An inexpensive and easy-to-use vacuum cleaner can be realized.

According to a twentieth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a floor identifying means for identifying a floor, and the fan according to an output of the floor identifying means. Fan motor control means for controlling the power supplied to the motor, and controlling the power supplied to the fan motor in accordance with the identification result of the floor identification means, realizing an easy-to-use vacuum cleaner it can.

According to the twenty-first aspect of the present invention, since the floor identifying means identifies at least the carpet and the tatami mat and controls the carpet to increase the power supplied to the fan motor, it is simple and easy to use. A good vacuum cleaner can be realized.

In the invention according to claim 22 of the present invention, the output value of the floor surface discriminating means is controlled so as to increase the power supplied to the fan motor as the load is determined to be heavy, so that the usability is further improved. Good vacuum cleaner can be realized.

According to the twenty-third aspect of the present invention, when the output value of the floor identification means is identified as being equal to or more than a predetermined value, the power supplied to the fan motor is controlled to be small, so that An easy-to-use vacuum cleaner can be realized.

According to a twenty-fourth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Since the number of revolutions of the nozzle motor is controlled in accordance with the floor identification means and the output of the floor identification means, an easy-to-use vacuum cleaner can be realized.

According to a twenty-fifth aspect of the present invention, the floor identifying means identifies at least a carpet and a tatami mat, and controls the number of revolutions of the nozzle motor in the carpet so that the number of revolutions of the nozzle motor increases. Therefore, a simple and convenient vacuum cleaner can be realized.

According to the twenty-sixth aspect of the present invention, the output value of the floor surface discriminating means is controlled so that the higher the load is, the higher the rotational speed of the nozzle motor is. A vacuum cleaner can be realized.

According to a twenty-seventh aspect of the present invention, when the output value of the floor identification means is identified as being equal to or greater than a predetermined value,
Since the rotation speed of the nozzle motor is controlled to be low, a more convenient vacuum cleaner can be realized.

According to the twenty-eighth aspect of the present invention, the number of revolutions of the nozzle motor is feedback-controlled so that the number of revolutions is the same on any floor in accordance with the output result of the floor identifying means. It is possible to control the number and realize a very convenient vacuum cleaner.

According to a twenty-ninth aspect of the present invention, a floor is distinguished from a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush. Since the power supply to the fan motor or the nozzle motor is controlled according to the floor identification means and the output of the floor identification means, an extremely convenient vacuum cleaner can be realized.

According to a thirtieth aspect of the present invention, there is provided an operation section for outputting an input control signal of a fan motor and a nozzle motor from an end of a main body, and a signal sent from the operation section and a floor identification means are provided. Since the control contents of the fan motor and the nozzle motor are set according to the output of the above, the cleaning can be performed more accurately in a state that matches the user's actual feeling of use, and a vacuum cleaner with excellent usability can be realized.

According to a thirty-first aspect of the present invention, one of a signal line for sending a signal from the operation unit to the main body and a power supply line for the nozzle motor is formed as a common line, and the other signal line is connected to the other signal line. Since the floor surface is identified by inputting the input voltage change to the signal processing unit, it is possible to realize a vacuum cleaner that is practically used while improving operability by reducing the number of lines.

According to the thirty-second aspect of the present invention, a vacuum cleaner having excellent usability can be realized since it has a display section for outputting a signal from the main body before the main body.

According to a thirty-third aspect of the present invention, a display section for outputting a signal from the main body first from the main body, and one of a power supply line and a display line of the nozzle motor are formed by a common line, Since the floor surface is identified by inputting the voltage change input from the other display line to the signal processing unit, a vacuum cleaner with excellent operability and excellent usability can be realized.

According to the invention described in claim 34 of the present invention, since the display line and the signal line are shared, a vacuum cleaner which is more excellent in operability and economical can be realized.

According to a thirty-fifth aspect of the present invention, there is provided dust detecting means for detecting sucked dust provided from the main body to the suction device side, and a signal from the dust detecting means and an output from the floor identification means. Since the fan motor or the nozzle motor is controlled, it is possible to realize a vacuum cleaner that is more practical to use.

According to a thirty-sixth aspect of the present invention, there is provided a dust detecting means arranged on the suction device side from the main body, and a dust signal which receives a signal from the dust detecting means and controls a fan motor or a nozzle motor. One of the processing unit, the power supply line of the nozzle motor and the dust signal line is formed as a shared line, and the voltage change input from the other dust signal line is input to the signal processing unit to identify the floor surface. As a result, an easy-to-use vacuum cleaner with excellent operability and practical feeling can be realized.

According to the invention of claim 37 of the present invention, since the output value of the floor identification means is inputted in synchronization with the power supply frequency, a vacuum cleaner which can reliably and easily identify the floor can be realized. .

According to the invention of claim 38 of the present invention, the ZVP
When the output value of the floor surface identification means becomes equal to or greater than or less than a certain comparison value, the timer which starts timing after a certain time has elapsed and the timer is stopped, and the floor surface is identified from this timer value. Thus, a vacuum cleaner that can identify the floor surface can be realized.

According to the thirty-ninth aspect of the present invention, since the floor identification and other signals are switched in chronological order, signal transmission and line saving are reliably realized, and inexpensive and excellent in operability. Vacuum cleaner can be realized.

The invention according to claim 40 of the present invention has a dust collecting amount judging means for detecting the amount of dust collected in the dust collecting chamber, and notifies the dust collecting amount based on the judgment result of the dust collecting amount judging means. Since the dust collecting amount notifying means is provided, a more convenient vacuum cleaner can be realized.

The invention according to claim 41 of the present invention is characterized in that a vacuum cleaner main body having a fan motor for sucking dust and a dust collecting chamber for storing the sucked dust, floor identification means for identifying a floor, Dust collection amount determining means for detecting the amount of dust collection in the dust collection chamber; dust collection amount correcting means for correcting the determination result of the dust collection amount determining means in accordance with the output of the floor identification means; Since the apparatus has the dust collecting amount notifying means for notifying the amount of collected dust based on the correction result of the means, it is possible to realize an easy-to-use vacuum cleaner which is more in use.

[0054] The invention according to claim 42 of the present invention provides a cleaner body having a fan motor for sucking dust and a dust collection chamber for storing the sucked dust, floor identification means for identifying a floor, Dust collection amount determining means for detecting the amount of dust collection in the dust collection chamber; dust collection amount correcting means for correcting the determination result of the dust collection amount determining means in accordance with the output of the floor identification means; Since the electric power supplied to the fan motor is controlled based on the correction result of the means, it is possible to realize an easy-to-use vacuum cleaner that is more in use.

The invention according to claim 43 of the present invention is directed to a cleaner body having a dust collection chamber for storing sucked dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, a floor, A floor identifying means for identifying a surface, a dust collecting amount determining means for detecting a dust collecting amount in the dust collecting chamber, and a collecting means for correcting a result of the dust collecting amount determining means according to an output of the floor identifying means. Since the electric power supplied to the nozzle motor is controlled based on the dust amount correcting means and the correction result of the dust collecting amount correcting means, it is possible to realize an easy-to-use vacuum cleaner having a more practical feeling.

According to a forty-fourth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a dust collecting chamber for storing the sucked dust, a rotary brush, and a nozzle motor for driving the rotary brush. A suction device having: a floor surface identification means for identifying a floor surface; a dust collection amount determination means for detecting a dust collection amount in the dust collection chamber; and a dust collection amount determination means in accordance with an output of the floor surface identification means. And the power supplied to the fan motor or the nozzle motor is controlled based on the correction result of the dust collection amount correcting means. Good vacuum cleaner can be realized.

According to a forty-fifth aspect of the present invention, there is provided dust detecting means provided in the intake passage for detecting dust to be sucked,
Since there is a dust detection notifying means for notifying dust detection based on the detection result of the dust detecting means, a more convenient vacuum cleaner can be realized.

The invention according to claim 46 of the present invention is characterized in that dust detection means provided in the intake passage for detecting dust to be sucked, floor identification means for identifying the floor surface, and an output from the floor identification means. It has dust detection and correction means for correcting the detection result of the dust detection means and dust detection and notification means for notifying dust detection based on the correction result of the dust detection and correction means. It is possible to realize a vacuum cleaner having excellent properties.

The invention according to claim 47 of the present invention is characterized in that a cleaner body having a fan motor for sucking dust, a suction tool, dust detecting means provided in an intake passage for detecting dust to be sucked, and a floor surface are identified. Floor detecting means, a dust detecting correcting means for correcting a detection result of the dust detecting means in accordance with an output of the floor detecting means, and supplying the fan motor based on the correction result of the dust detecting correcting means. Since the electric power is controlled, it is possible to realize an easy-to-use vacuum cleaner that is more suitable for use.

According to a forty-eighth aspect of the present invention, there is provided a rotary brush, a suction device having a nozzle motor for driving the rotary brush, dust detecting means provided in the intake passage for detecting dust to be sucked, and a floor surface. A floor identification means for identifying, a dust detection correction means for correcting a detection result of the dust detection means in accordance with an output of the floor identification means, and a supply to the nozzle motor based on a correction result of the dust detection correction means Since the electric power to be controlled is controlled, it is possible to realize an easy-to-use vacuum cleaner that is more suitable for actual use.

According to a fifty-ninth aspect of the present invention, there is provided a cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and a suction device provided in an intake passage. Dust detection means for detecting dust to be generated, floor identification means for identifying a floor, dust detection correction means for correcting the detection result of the dust detection means in accordance with the output of the floor identification means, and dust detection Since the electric power supplied to the fan motor or the nozzle motor is controlled based on the correction result of the correction means, an easy-to-use and easy-to-use vacuum cleaner can be realized.

In the invention according to claim 50 of the present invention, since the nozzle motor for driving the rotating brush is constituted by an inverter motor, the number of revolutions can be controlled with high accuracy, and as a result, a very convenient vacuum cleaner can be realized. .

In the invention according to claim 51 of the present invention, since the floor identification means is constituted by the rotation speed detection means of the inverter motor for the nozzle motor, the floor identification can be performed without providing a special floor identification sensor. As a result, an inexpensive and easy-to-use vacuum cleaner can be realized.

According to the invention of claim 52 of the present invention, since the floor identification means is constituted by the current detection means of the inverter motor for the nozzle motor, the floor identification can be performed without providing a special floor identification sensor. As a result, an inexpensive and easy-to-use vacuum cleaner can be realized.

In the invention according to claim 53 of the present invention, since the fan motor is constituted by an inverter motor, input control can be performed with high accuracy, and as a result, an extremely convenient vacuum cleaner can be realized.

In the invention according to the fifty-fourth aspect of the present invention, since the floor identification means is constituted by the rotation speed detection means of the inverter motor for the fan motor, the floor identification can be performed without providing a special floor identification sensor. As a result, an inexpensive and easy-to-use vacuum cleaner can be realized.

In the invention according to claim 55 of the present invention, since the floor identification means is constituted by the current detection means of the inverter motor for the fan motor, the floor identification can be performed without providing a special floor identification sensor. As a result, an inexpensive and easy-to-use vacuum cleaner can be realized.

According to the invention of claim 56 of the present invention, since the power supply voltage is detected and the identification result of the floor identification means is corrected, the floor identification can be performed with high accuracy, and as a result, a vacuum cleaner which is very easy to use can be realized.

[0069]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described.
This will be described with reference to the drawings.

FIG. 1 is a block diagram of a vacuum cleaner according to this embodiment. 1 is a vacuum cleaner main body having a fan motor 2 for sucking dust, 3 is a suction tool, 4 is a floor identification means for identifying a floor, 5 is a fan motor 2 according to the output of the floor identification means 4.
The control means 6 controls the power supplied to the fan motor 6, and the driving means 6 drives the fan motor 2 in accordance with the control contents of the control means 5. 4a is an exhaust air volume detecting means for detecting an exhaust air volume of the fan motor 2, 4b is a current change detecting device for detecting an amount of change in a current value of the fan motor 2, and 4c is a fan motor 2
The power amount change detecting means 4d for detecting the power amount change of the fan motor 2 is a rotation change detecting means for detecting the change amount of the rotation speed of the fan motor 2.

FIG. 2A is a diagram showing the degree of closeness of the suction tool to the floor surface, and FIG.

FIGS. 3A and 3B show values of various parameters of the fan motor 2 with respect to various floor surfaces. FIG.
(B) is a current, (c) is an electric energy, and (d) is a rotation speed.

The operation of the above configuration will be described.

First, when the user turns on the power, the fan motor 2 starts rotating. When the fan motor 2 starts sucking, the gap between the floor surface and the suction tool 3 is reduced, and the dust on the floor surface can be sucked and cleaned. At this time, as shown in FIG. 2A, the degree of close contact between the suction tool and the floor surface changes according to the type of floor surface to be cleaned. If the degree of adhesion changes, the amount of suction air also changes as shown in FIG. The degree of adhesion increases on floors with little surface irregularities, such as wooden floors and tatami mats, and decreases on floors with severe irregularities, such as carpets.
On wooden floors and tatami mats that have a high degree of adhesion to the floor surface where there is garbage, dust can be sufficiently sucked even with a small airflow (input), but more airflow (input) for carpets with a low degree of adhesion between the floor surface and the suction tool. Is required.

Therefore, as shown in FIG. 2B, attention is paid to the fact that when the degree of adhesion is high, the amount of air that can be sucked is reduced, and when the degree of adhesion is low, the amount of air that is sucked is increased. Floor can be identified. For example, as shown in FIG.
The exhaust air amount (a), current value (b), electric energy (c), and rotation speed (d) change. The contents of this change are sent to the control means 5 by the floor identification means 4, the control means 5 controls the power supplied to the fan motor 2 according to the floor, and the drive means 6 is driven according to this control signal.

For example, in the exhaust air volume of the fan motor 2, the exhaust air volume increases when the suction air volume is large, and the exhaust air volume decreases when the suction air volume is small. The exhaust air volume detecting means 4a detects the exhaust air volume, and identifies the floor surface. If the exhaust air volume is small, the suction tool 3 is in close contact with the floor, and the floor is determined to be a wooden floor or a tatami mat, and the supplied power is reduced. Conversely, if the exhaust air volume is large, it is determined that the suction device 3 is not in close contact with the floor surface, and the floor surface is determined to be a carpet, and the supply power is increased. As a method of detecting the suction air volume, there are a current value, an electric power amount, a rotation speed, and the like in addition to the exhaust air volume. The change in the suction air volume may be detected by using the current detecting means 4b, the electric energy detecting means 4c, and the rotational speed detecting means 4d, respectively, and the floor may be identified in the same manner. Any method may be used as long as it can detect the change in the suction air volume of the fan motor 2 and determine the floor surface.

Further, it is needless to say that multi-stage (continuous) input control may be performed in accordance with the floor surface identification, instead of two types such as wooden floor / tatami and carpet. .

In addition, if the degree of adhesion between the floor and the suction tool 3 is higher than a certain set value, there is no suction air (such as clogging of dust).
May be determined to be in a closed state, and control may be performed to reduce the supply of electric power extremely to suppress the heat generation of the fan motor 2.

(Embodiment 2) A second embodiment of the present invention will be described with reference to the drawings. Components having the same configuration as the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 4 is a block diagram of the vacuum cleaner of the present embodiment, in which reference numeral 7 denotes a load detecting means for detecting a load applied to the roller 3a which should originally support the suction device 3, and reference numeral 8 denotes a suction device 3.
Static electricity detection means 9 for detecting static electricity generated between the suction tool 3 and the floor, and sound detection means 9 for detecting the amount of change in the sound of the suction device 3, both of which are floor identification means 4.

FIG. 5A shows the load of the suction tool on the floor, FIG. 5B shows the capacitance generated between the suction tool and the floor, and FIG. 5C shows the sound of the suction tool on the floor. FIG.

The operation of the above configuration will be described.

When the suction tool 3 is moved on the floor surface, FIG.
In a floor having a small surface unevenness such as a wooden floor or a tatami mat as shown in FIG. 3A, the load of the suction device 3 is entirely applied to the roller 3a which should originally support the suction device 3, and the value detected by the load detection means 7 is as follows. On the other hand, on a floor with a rough surface such as a carpet, the suction part 3 may be used in addition to the roller part 3a.
As a result, the value detected by the load detecting means 7 decreases. In addition, as shown in FIG. 5 (b), on floors with little surface irregularities such as wooden floors and tatami mats,
Since the gap between the floor and the floor is uniform, the amount of static electricity is small, and the value detected by the static electricity detecting means 8 is also small. On the other hand, in the case of a floor having a rough surface such as a carpet, the floor and the suction portion are rubbed. As a result of the accumulation of static electricity, the value detected by the static electricity detecting means 8 increases.

Further, as shown in FIG. 5 (c), on a floor such as a wooden floor or a tatami mat having a small surface unevenness, the suction device 3 can move smoothly, so that there is little change in sound. On the other hand, on a floor with a rough surface such as a carpet, the change in the suction air volume is large and the wind noise from the suction part also appears as a result, and the value detected by the sound detection means 8 is growing. By utilizing such characteristics, the floor surface can be identified.

(Embodiment 3) A third embodiment of the present invention will be described with reference to the drawings.

The same components as those in the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 6 is a block diagram of the vacuum cleaner of this embodiment, in which 11 is a rotary brush for scraping up dust on the floor, 12 is a nozzle motor for driving the rotary brush 11, and 13 is an output of the floor identification means 4. Nozzle control means for controlling the power supplied to the nozzle motor 12 in accordance with the
Nozzle driving means for driving the nozzle motor 12 in accordance with the contents of the control, 15 is an overcurrent protection element for preventing an overcurrent from flowing to the nozzle motor, 16 is a current detecting means for detecting a current flowing to the nozzle motor 12, 17 Is a protection element voltage detection means for detecting the voltage of the overcurrent protection element 15;
Is a driving element voltage detecting means for detecting the voltage of the nozzle driving means 14, 19 is a line voltage detecting means for detecting the voltage of a supply line 20 for supplying electric power to the nozzle motor 12, 21
Is a noise frequency detecting means for detecting the frequency of a noise component contained in the current supplied to the nozzle motor 12, and 22 is a noise variation detecting means for detecting a variation of the noise component contained in the current supplied to the nozzle motor 12. The protection element voltage detecting means 17, the driving element voltage detecting means 18, the line voltage detecting means 19, the noise frequency detecting means 21, and the noise change amount detecting means 22 are all floor surface identifying means 4.

FIG. 7A is a diagram showing the relationship between the load of the nozzle motor and the floor surface, FIG.
FIG. 4 is a characteristic diagram showing a rotation speed.

FIG. 8A is a diagram showing a protection element voltage value on the floor, FIG. 8B is a diagram showing a drive element voltage value on the floor, and FIG. 8C is a diagram showing a line voltage on the floor.

FIG. 9A is a diagram showing the number of revolutions of the nozzle motor with respect to the floor, FIG. 9B is a diagram showing the noise frequency with respect to the number of revolutions of the nozzle motor, and FIG.

The operation of the above configuration will be described.

First, when the user turns on the power, the nozzle motor 12 starts to rotate similarly to the fan motor 2. As shown in FIG. 7A, the unevenness of the floor surface is a load for the nozzle motor 12, and the load is light on a floor surface having a small surface unevenness such as a wooden floor or a tatami mat, and the floor surface is extremely uneven such as a carpet. Then the load becomes heavy.

Further, a certain number of rotations is required for the rotating brush 11 to scrape up dust on the floor surface. Particularly, on a floor where there is dust in a deep part such as a carpet, a higher number of rotations than a wooden floor / tatami mat is required. is necessary. Therefore, as shown in FIG. 7B, attention is paid to the fact that the load becomes lighter when the unevenness of the floor is small, and the load becomes heavy when the unevenness is large, and the floor is identified according to the load of the nozzle motor 12. be able to.

In order to detect the load, the value of the current supplied to the nozzle motor 12, the number of rotations, or the vibration may be detected. For example, a current value can be detected from a protection element voltage value, a drive element voltage value, or a line voltage without providing a current detection element. The number of rotations can be detected from the noise frequency at the time of current detection, and the vibration of the noise motor 12 can be detected from the amount of change in the noise component. Accordingly, as shown in FIG. 8, the protection element voltage value (a), the drive element voltage value (b) and the line voltage (c) of the nozzle motor 12 depend on the load, and the noise frequency (a) as shown in FIG. ), The amount of noise (b) changes.

The contents of this change are sent by the floor identification means 4 to the nozzle control means 13, which controls the power supplied to the nozzle motor 12 in accordance with the floor, and in accordance with this control signal, the nozzle drive means. 14 is driven. For example, the current value of the current flowing through the nozzle motor 12 decreases when the load is light, and increases when the load is heavy. This current value is detected as a voltage value by the protection element voltage detection means 17 to identify the floor surface. If the voltage value is low, the load is light, so that the floor is determined to be a wooden floor or a tatami mat, and the supplied power is reduced.
Conversely, if the voltage value is high, the load is heavy, so the floor is judged to be a carpet and the supply power is increased. As a method of detecting the load of the nozzle motor 12, there are a rotation speed, vibration, and the like in addition to the current value. There are a driving element voltage detecting means 18, a supply line voltage detecting means 19, a rotation frequency detecting method, a noise frequency detecting means 21, and a vibration detecting method, a noise amount detecting means 22, and the like. The floor surface may be identified by detecting a change in load. Any method may be used as long as the change in the load of the nozzle motor 12 can be detected and the floor surface can be determined.

Further, it is needless to say that multi-stage (continuous) input control may be performed in accordance with the value of the floor surface identification instead of two types such as wooden floor / tatami and carpet. .

In addition, if the degree of load is equal to or more than a certain set value, it is determined that the nozzle motor 12 is overloaded, and the supply power is extremely reduced to perform control to suppress the heat generation of the nozzle motor 12. good.

Needless to say, at least one or both of the fan motor 2 and the nozzle motor 12 may control the supply power according to the floor surface.

(Embodiment 4) A fourth embodiment of the present invention will be described with reference to the drawings.

The same components as those in the first to third embodiments are denoted by the same reference numerals, and description thereof is omitted.

FIGS. 10 and 11 are block diagrams of the vacuum cleaner of this embodiment. Reference numeral 31 denotes a back electromotive force detecting means for detecting a back electromotive force generated by the rotation of the nozzle motor 12, which is one of the floor identification means 4. is there. Reference numeral 32 denotes an operation unit provided on a hose unit, an extension pipe, or the like ahead of the cleaner main body 1, and reference numeral 33 denotes a display means for displaying contents output from the main body. Reference numeral 34 denotes a signal line for transmitting a signal from the operation unit 32 to the main body, and 35 denotes a display line for outputting display contents to the display unit 33. 36 is a ZVP for detecting the zero cross of the commercial power supply, 37 is a ZVP
A motor-on timer for measuring the time from 36 to the start of power supply to the nozzle motor 12; a motor-off timer 38 for measuring the time until no current flows from the ZVP 36 to the nozzle motor 12; This is a display on timer that measures the time until a signal is output to the display.

FIG. 12 is a diagram showing the relationship between the back electromotive force and the floor surface.

FIG. 13A shows a nozzle motor voltage waveform,
(B) is a nozzle motor current waveform, (c) is a supply line voltage waveform, and (d) is a commercial power supply waveform.

FIG. 14 is a timing chart of the operation section signal (a), the nozzle motor power supply (b), the main body content output (c), and the commercial power supply (d).

The operation of the above configuration will be described.

Since the nozzle motor 12 is a DC motor, the back electromotive force E is expressed by the following equation: E = kΦn (k = constant, Φ = magnetic flux, n = rotational speed) It can be seen that also changes. Accordingly, the rotation speed can be detected by detecting the back electromotive force of the nozzle motor 12.

First, when the user operates the operation section, the contents of the operation are sent to the control means 5 via the signal line 34. At this time, since the nozzle motor 12 has not been driven yet, the timer value of the motor-on timer 37 is set so that the amount of power supplied corresponds to the operation content, and the power supply line is supplied according to the value of the motor-on timer 37. Is supplied to the nozzle motor 12 via the.

The nozzle motor 12 starts to rotate,
Back electromotive force is generated as shown in FIG. FIG. 13 (b)
As shown in (1), power is supplied from the main body 1 to the nozzle motor 12 only when the supply voltage from the main body 1 is larger than the back electromotive force. If the power supply voltage is constant, the magnitude of the back electromotive force can be measured by the time until the current supplied from the main body 1 to the nozzle motor 12 is turned off. Therefore, the motor-off timer 38 is activated from the moment when the ZVP is detected by the ZVP detecting means 36, and the time until the current supplied to the nozzle motor 12 is turned off is counted.

The floor surface is identified based on the measured time, and the amount of power supplied to the nozzle motor 12 is controlled. For example, on floors with light loads such as wooden floors and tatami mats, the nozzle motor 12
, The back electromotive force also increases, and the value measured by the motor-off timer 38 decreases. Conversely, the rotation of the nozzle motor 12 becomes low on a floor surface with a heavy load such as a carpet,
The back electromotive force also decreases, and the value measured by the motor-off timer 38 increases. At this time, on a floor with a light load, the value of the motor-on timer 37 is increased to reduce the number of revolutions of the nozzle motor 12, and control is performed to reduce the amount of supplied electric power. Control is performed to increase the supplied power so as to shorten the set value of 37 and increase the rotation speed of the nozzle motor 12. At this time, the motor-off timer 38
When the supply power is controlled to set the value of the motor-on timer 37 so that the value of the nozzle motor 12 becomes constant, the rotation speed of the nozzle motor 12 can be kept constant regardless of the floor surface.

The output contents from the main unit 1 can be displayed first from the main unit 1 via the display line. Further, as shown in FIG. 14, by synchronizing with the ZVP, the input timing of the operation signal, the power supply timing to the nozzle motor 12, and the display timing to the display means 33 are set so as not to overlap each other, so that the signal line 34
And the display line 35 can be shared, and the line on one side of the supply line and the signal line 34 (display line 35) can also be shared. As a result, where six wires are conventionally required can be realized with three wires.

Here, the motor-off timer 38 for detecting the current supplied to the nozzle motor 12 from the time ZVP to the off-state has been described as the means for detecting the back electromotive force. , The supply current on-time and off-time, the voltage of the power supply line to the nozzle motor 12, and the like. Any method may be used as long as it can detect and control the back electromotive force of the nozzle motor 12.

(Embodiment 5) A fifth embodiment of the present invention will be described with reference to the drawings.

The same components as those in the first to fourth embodiments are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 15 is a block diagram of the vacuum cleaner of this embodiment. Reference numeral 41 denotes a dust collection amount detecting means for detecting the amount of dust collection in the dust collection chamber, and reference numeral 42 denotes a collection based on the result of the determination by the dust collection amount determining means. Dust collecting amount notifying means 43 for notifying the amount of dust, 43 is a dust collecting amount correcting means for correcting the determination result of the dust collecting amount determining means 41 according to the output of the floor identification means 4, and 44 is a dust collecting amount correcting means 43. A dust collection amount notification correcting means for notifying the amount of dust collection based on the correction result of
Reference numeral denotes a dust collection amount correction control unit that controls electric power supplied to the fan motor 2 or the nozzle motor 12 based on a correction result of the dust collection amount correction unit 43.

FIG. 16 is a diagram showing the relationship between the amount of dust and the amount of air flow.

The operation of the above configuration will be described.

When the amount of dust collected in the dust collection chamber increases, dust cannot be sucked, and the user is notified using the dust collection amount notifying means 42. However, as shown in FIG. 16, the amount determined by the dust collection amount determining means 41 differs depending on the type of floor surface. Thus, the result of the judgment by the dust collection amount judgment means 41 and the result of the identification by the floor identification means 4 are input to the dust collection amount correction means 43, and the dust collection amount correction means 43 receives the same collection regardless of the type of floor surface. The dust amount is corrected so that it can be determined, and the dust collection amount notification correcting unit 44 notifies based on the correction result. Further, the dust collection amount correction control unit 45 that has input the correction result controls the power supply amount of the fan motor 2 or the nozzle motor 12 according to the dust collection amount and the floor surface. As the amount of dust collection increases, the dust collection force decreases even with the same input. Therefore, the input of the fan motor 2 is increased and the rotation speed of the nozzle motor 12 is increased with respect to the input value set in the state where the dust collection amount is small in order to maintain the same dust collection force as when the dust collection amount is small. Correction control is performed to increase the value.

(Embodiment 6) A sixth embodiment of the present invention will be described with reference to the drawings.

The same components as those in the first to fifth embodiments are denoted by the same reference numerals, and the description thereof will be omitted.

FIG. 17 is a block diagram of the vacuum cleaner of this embodiment. Reference numeral 51 denotes dust detection means provided in the intake passage for detecting dust to be sucked, and 52 denotes dust detection for notifying based on the detection result of the dust detection means 51. Notification means, 53 is floor identification means 4
Dust detection correction means for correcting the detection result of the dust detection means 51 in accordance with the output of the dust detection correction means for notifying based on the correction result of the dust detection correction means 53, and 55 correction of the dust detection correction means 53 This is dust detection correction control means for controlling electric power supplied to the fan motor 2 or the nozzle motor 12 based on the result.

FIG. 18 is a diagram showing the relationship between dust detection on the floor surface.

The operation of the above configuration will be described.

The dust detecting means 51 is provided in the intake passage and detects dust to be sucked, and the dust detection notifying means 52 notifies the user that there is dust. However, as shown in FIG. 18, the garbage quality and garbage type differ depending on the type of floor surface.
The detection result of the dust detection unit 51 differs depending on the type of floor surface. Therefore, the detection result of the dust detection unit 51 and the identification result of the floor identification unit 4 are input to the dust detection correction unit 53, and the dust detection correction unit 53 performs correction so that the same dust can be detected regardless of the type of floor surface. Then, according to the correction result, the dust detection notification correction means 54 notifies. Further, the dust detection correction control means 55, which has input the correction result, sets the fan motor 2 or the nozzle motor 1 according to the content of the dust detection and the floor surface.
2 is controlled.

Further, the fan motor 2 and the nozzle motor 12
By using an inverter motor for the motor, it is possible to provide control means such as a rotation speed detection sensor and a current detection sensor necessary for inverter motor control without providing a special sensor for floor identification or using means different from the intended purpose. By using this, the floor surface can be reliably and accurately identified.

In addition, by detecting the power supply voltage and correcting the floor identification value according to the detected power supply voltage, the floor identification can be performed more reliably.

[0126]

According to the first aspect of the present invention,
Since the floor surface is identified based on the detection result of the exhaust air volume detection means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be provided.

According to the second aspect of the present invention, since the floor surface is identified by the detection result of the current change detecting means, the floor surface can be identified with a simple configuration, and the inexpensive vacuum cleaner is easy to use. Can be provided.

According to the invention of claim 3 of the present invention, since the floor surface is identified based on the detection result of the electric energy change detecting means, the floor surface can be identified with a simple configuration, and the inexpensive and easy-to-use electric cleaner is provided. Machine can be provided.

According to the invention described in claim 4 of the present invention, since the floor surface is identified based on the detection result of the rotation change detecting means, the floor surface can be identified with a simple structure, and the vacuum cleaner is inexpensive and easy to use. Can be provided.

According to the fifth aspect of the present invention, since the floor surface is identified based on the detection result of the load detecting means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be provided. Can be provided.

According to the sixth aspect of the present invention, since the floor surface is identified by the detection result of the static electricity detecting means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be provided. realizable.

According to the seventh aspect of the present invention, the floor surface is identified based on the detection result of the protection element voltage detection means.
The floor surface can be identified without using a floor surface sensor.

According to the invention of claim 8 of the present invention, since the floor surface is identified based on the detection result of the driving element voltage detecting means,
The floor surface can be identified without using a floor surface sensor.

According to the ninth aspect of the present invention, since the floor surface is identified by the detection result of the line voltage detecting means, the floor surface can be identified without using a special floor surface sensor.

According to the tenth aspect of the present invention,
Since the floor surface is identified based on the detection result of the temperature detecting means, the floor surface can be identified without using a special floor surface sensor.

According to the eleventh aspect of the present invention,
Since the floor surface is identified based on the detection result of the noise frequency detecting means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be provided.

According to the twelfth aspect of the present invention,
Since the floor surface is identified based on the detection result of the noise change amount detection means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be provided.

According to the thirteenth aspect of the present invention,
Since the floor surface is identified based on the detection result of the sound detection means, the floor surface can be identified with a simple configuration, and an inexpensive and easy-to-use vacuum cleaner can be realized.

According to the fourteenth aspect of the present invention,
Since the floor surface is identified by the back electromotive force generated by the rotation of the nozzle motor, the floor surface can be reliably identified, and an easy-to-use vacuum cleaner can be provided.

According to the fifteenth aspect of the present invention,
Since the back electromotive force is detected by the voltage of the nozzle motor, the back electromotive force can be detected with a simple configuration.

According to the sixteenth aspect of the present invention,
Since the back electromotive force is detected by the supply current to the nozzle motor, the back electromotive force can be detected with a simple configuration.

According to the seventeenth aspect of the present invention,
Since the back electromotive force is detected based on the on-time of the current supplied to the nozzle motor, the back electromotive force can be detected with a simple configuration.

According to the eighteenth aspect of the present invention,
Since the back electromotive force is detected based on the off time of the supply current to the nozzle motor, the back electromotive force can be detected with a simple configuration.

According to the nineteenth aspect of the present invention,
Since the back electromotive force is detected by the voltage of the power supply line to the nozzle motor, the back electromotive force can be detected with a simple configuration.

According to the twentieth aspect of the present invention,
Since the power supplied to the fan motor is controlled in accordance with the identification result of the floor identification means, an easy-to-use vacuum cleaner can be provided.

According to the twenty-first aspect of the present invention,
Since the floor identification means identifies at least the carpet and the tatami mat and controls the carpet to increase the power supplied to the fan motor, a simple and easy-to-use vacuum cleaner can be provided.

According to the invention of claim 22 of the present invention,
The more the output value of the floor identification means identifies a heavy load,
Since the electric power supplied to the fan motor is controlled to be large, a more convenient vacuum cleaner can be provided.

According to the twenty-third aspect of the present invention,
When the output value of the floor identification means is identified as being equal to or greater than a predetermined value, the power supplied to the fan motor is controlled to be small, so that a more convenient vacuum cleaner can be provided.

According to the twenty-fourth aspect of the present invention,
Since the number of revolutions of the nozzle motor is controlled according to the output of the floor identification means, an easy-to-use vacuum cleaner can be provided.

According to the twenty-fifth aspect of the present invention,
Since the floor surface identifying means identifies at least the carpet and the tatami mat and controls the rotation speed of the nozzle motor in the carpet so that the rotation speed of the nozzle motor increases, a simple and easy-to-use vacuum cleaner can be provided.

According to the twenty-sixth aspect of the present invention,
The more the output value of the floor identification means identifies a heavy load,
Since the rotation speed of the nozzle motor is controlled to be higher, a more convenient vacuum cleaner can be provided.

According to the twenty-seventh aspect of the present invention,
When the output value of the floor identification means is determined to be equal to or more than a predetermined value, the rotation speed of the nozzle motor is controlled to be low, so that a more convenient vacuum cleaner can be provided.

According to the twenty-eighth aspect of the present invention,
The number of revolutions of the nozzle motor is feedback-controlled so that the number of revolutions is the same on all floors according to the output result of the floor surface identification means. Therefore, the number of revolutions can be easily controlled, providing a very convenient vacuum cleaner. it can.

According to the twenty-ninth aspect of the present invention,
Since the power supplied to the fan motor or the nozzle motor is controlled in accordance with the output of the floor identification means, a very convenient vacuum cleaner can be provided.

According to the invention of claim 30 of the present invention,
Since the control contents of the fan motor and nozzle motor are set according to the signal sent from the operation unit and the output of the floor identification means, cleaning can be performed more accurately in a state that matches the user's actual use, A vacuum cleaner having excellent usability can be provided.

According to the thirty-first aspect of the present invention,
One of a signal line for sending a signal from the operation unit to the main body and a power supply line of the nozzle motor is formed as a common line, and a voltage change input from the other signal line is input to the signal processing unit. Since the floor surface is identified by using, it is possible to provide a vacuum cleaner that can be used while improving operability by reducing the number of lines.

According to the invention of claim 32 of the present invention,
Since the main body has a display portion for outputting a signal from the main body in advance, a vacuum cleaner having excellent usability can be provided.

According to the invention of claim 33 of the present invention,
A display section for outputting a signal from the main body first from the main body, one of a power supply line and a display line of the nozzle motor is formed as a common line, and a voltage change input from the other display line is subjected to the signal processing. Since the floor surface is identified by inputting to the section, a vacuum cleaner having excellent operability and excellent usability can be provided.

According to the invention described in claim 34 of the present invention,
Since the display line and the signal line are shared, it is possible to provide an economical vacuum cleaner with more excellent operability.

According to the invention of claim 35 of the present invention,
From the signal from the dust detection means and the output from the floor identification means,
Since the fan motor or the nozzle motor is controlled, it is possible to provide a vacuum cleaner that is more practical to use.

According to the invention of claim 36 of the present invention,
Dust detection means arranged on the suction device side from the main body, a dust signal processing unit for receiving a signal from the dust detection means and controlling a fan motor or a nozzle motor, a power supply line and a dust signal line for the nozzle motor Of these, one is formed by a common line, and the floor change is identified by inputting a voltage change input from the other dust signal line to the signal processing unit. Can provide a good vacuum cleaner.

According to the thirty-seventh aspect of the present invention,
Since the output value of the floor identification means is input in synchronization with the power supply frequency, it is possible to provide a vacuum cleaner capable of reliably and easily identifying the floor.

According to the thirty-eighth aspect of the present invention,
When the output value of the floor surface identification means becomes equal to or greater than or less than a certain comparison value, the timer which starts timing after the elapse of a certain time from ZVP and the timer is stopped, and the floor surface is identified from this timer value. It is possible to provide a vacuum cleaner capable of reliably identifying the floor surface.

According to the thirty-ninth aspect of the present invention,
Since the floor identification and other signals are switched in time series, signal transmission and line saving can be reliably provided, and an inexpensive vacuum cleaner with excellent operability can be provided.

According to the invention of claim 40 of the present invention,
Since the amount of dust collection is reported based on the determination result of the amount of dust collection determining means for detecting the amount of dust collection in the dust collection chamber, a more convenient vacuum cleaner can be provided.

According to the invention described in claim 41 of the present invention,
Since the judgment result of the dust collection amount judgment means is corrected according to the output of the floor surface identification means, and the dust collection amount is notified based on the correction result,
An easy-to-use vacuum cleaner that is more suitable for use can be provided.

According to the invention of claim 42 of the present invention,
The electric power supplied to the fan motor is controlled based on the correction result of the dust collection amount determining means in accordance with the output of the floor surface identifying means, so that the more convenient and easy-to-use electric cleaning. Machine can be provided.

According to the invention of claim 43 of the present invention,
The electric power supplied to the nozzle motor is controlled based on the correction result of the dust collection amount determining means according to the output of the floor surface identification means, and the user-friendly electric cleaning is more practical. Machine can be provided.

According to the invention of claim 44 of the present invention,
The judgment result of the dust collection amount judgment means is corrected according to the output of the floor surface identification means, and the power supplied to the fan motor or the nozzle motor is controlled based on the correction result. Can provide a good vacuum cleaner.

According to the forty-fifth aspect of the present invention,
Since the dust detection is notified based on the detection result of the dust detection means, a more convenient vacuum cleaner can be provided.

According to the invention described in claim 46 of the present invention,
Since the detection result of the dust detection means is corrected according to the output of the floor identification means, and the detection of the dust is notified based on the correction result,
It is possible to provide a vacuum cleaner that can be notified more accurately and has excellent usability.

According to the invention described in claim 47 of the present invention,
Since the detection result of the dust detection means is corrected in accordance with the output of the floor identification means, and the power supplied to the fan motor is controlled based on the correction result, an easy-to-use and easy-to-use vacuum cleaner can be provided. .

According to the invention of claim 48 of the present invention,
Since the detection result of the dust detection means is corrected in accordance with the output of the floor identification means, and the power supplied to the nozzle motor is controlled based on the correction result, an easy-to-use and easy-to-use vacuum cleaner can be provided. .

According to the invention of claim 49 of the present invention,
Since the detection result of the dust detection means is corrected according to the output of the floor identification means, and the electric power supplied to the fan motor or the nozzle motor is controlled based on the correction result, an easy-to-use vacuum cleaner which is more user-friendly. Can be provided.

According to the invention of claim 50 of the present invention,
Since the nozzle motor for driving the rotating brush is constituted by an inverter motor, the number of revolutions can be controlled with high accuracy, and as a result, an extremely convenient vacuum cleaner can be provided.

According to the invention described in claim 51 of the present invention,
Since the floor surface identification means is constituted by the rotation number detection means of the inverter motor for the nozzle motor, the floor surface can be identified without providing a special floor surface identification sensor.

According to the invention of claim 52 of the present invention,
Since the floor identifying means is constituted by the current detecting means of the inverter motor for the nozzle motor, the floor can be identified without providing a special floor identifying sensor.

According to the invention of claim 53 of the present invention,
Since the fan motor is composed of an inverter motor,
The input can be controlled with high accuracy, and as a result, a very convenient vacuum cleaner can be provided.

According to the invention of claim 54 of the present invention,
Since the floor surface identification means is constituted by the rotation speed detection means of the inverter motor for the fan motor, the floor surface can be identified without providing a special floor surface identification sensor.

According to the invention of claim 55 of the present invention,
Since the floor identifying means is constituted by the current detecting means of the inverter motor for the fan motor, the floor can be identified without providing a special floor identifying sensor.

According to the invention of claim 56 of the present invention,
Since the power supply voltage is detected and the identification result of the floor identification means is corrected, the floor identification can be performed with high accuracy, and as a result, a very convenient vacuum cleaner can be provided.

[Brief description of the drawings]

FIG. 1A is an overall perspective view of a vacuum cleaner showing a first embodiment of the present invention. FIG. 1B is a block diagram of the vacuum cleaner.

FIG. 2A is a diagram showing the degree of closeness of the suction tool to the floor surface of the vacuum cleaner. FIG.

FIG. 3 (a) Suction airflow-exhaust airflow characteristic diagram of the vacuum cleaner (b) Suction airflow-current characteristic diagram of the vacuum cleaner (c) Suction airflow-power amount characteristic of the vacuum cleaner Fig. (D) Suction air volume vs. rotation speed characteristic diagram of the vacuum cleaner

FIG. 4A is an overall perspective view of a vacuum cleaner showing a second embodiment of the present invention. FIG. 4B is a block diagram of the vacuum cleaner.

FIG. 5A is a diagram showing a load of the suction device on the floor surface of the vacuum cleaner. FIG. 5B is a diagram showing a capacitance generated between the suction device and the floor surface of the vacuum cleaner. c) Diagram showing the sound of the suction tool on the floor surface in the vacuum cleaner

FIG. 6 is a block diagram of a vacuum cleaner showing a third embodiment of the present invention.

FIG. 7A is a diagram showing a relationship between a nozzle motor load and a floor surface of the vacuum cleaner, and FIG. 7B is a characteristic diagram showing a nozzle motor current and a rotation speed with respect to the load in the vacuum cleaner.

8A is a diagram showing a protection element voltage value with respect to a floor surface of the vacuum cleaner. FIG. 8B is a diagram showing a drive element voltage value with respect to the floor surface of the vacuum cleaner. Diagram showing line voltage with respect to

9A is a diagram showing the number of revolutions of the nozzle motor with respect to the floor surface of the vacuum cleaner. FIG. 9B is a diagram showing the noise frequency with respect to the number of revolutions of the nozzle motor of the vacuum cleaner. Diagram showing the amount of noise change with respect to the floor

FIG. 10 is a block diagram of a vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 11 is a block diagram of an electric vacuum cleaner showing another example.

FIG. 12 is a diagram showing a relation between a back electromotive force and a floor surface in the vacuum cleaner.

13A is a waveform diagram of a nozzle motor voltage in the vacuum cleaner. FIG. 13B is a waveform diagram of a nozzle motor current in the vacuum cleaner. FIG. 13C is a waveform diagram of a supply line voltage in the vacuum cleaner. Commercial power supply waveform diagram

FIG. 14 (a) is a timing chart of an operation section signal of the vacuum cleaner. (B) is a timing chart of nozzle motor power supply of the vacuum cleaner. (C) is a timing chart of a main body output of the vacuum cleaner. Commercial power timing diagram

FIG. 15 is a block diagram of a vacuum cleaner according to a fifth embodiment of the present invention.

FIG. 16 is a diagram showing the relationship between the amount of dust collected and the amount of air flow in the vacuum cleaner.

FIG. 17 is a block diagram of a vacuum cleaner according to a sixth embodiment of the present invention.

FIG. 18 is a diagram showing the relation between dust detection on the floor and the vacuum cleaner.

FIG. 19A is an overall perspective view of a conventional vacuum cleaner. FIG. 19B is a block diagram of the same vacuum cleaner.

FIG. 20 is a block diagram of a vacuum cleaner showing another conventional example.

[Explanation of symbols]

 2 Fan motor 4 Floor identification means 5 Control means 6 Driving means 7 Load detection means 8 Static electricity detection means 9 Sound detection means 12 Nozzle motor 13 Nozzle control means 14 Nozzle drive means 17 Protection element voltage detection means 18 Drive element voltage detection means 19 Line voltage detecting means 21 Noise frequency detecting means 22 Noise change amount detecting means 31 Back electromotive force detecting means 32 Operating means 33 Display means 34 Signal line 35 Display line 36 ZVP 37 Motor on timer 38 Motor off timer 39 Display on timer 41 Dust collection amount Judging means 42 Dust collection amount notification means 43 Dust collection amount correction means 44 Dust collection amount correction means 45 Dust collection correction control means 51 Dust detection means 52 Dust detection notification means 53 Dust detection correction means 54 Dust detection notification correction means 55 Dust Detection correction control means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Senoo 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Akihiro Kitagawa 1006 Odaka Kadoma Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Shinichi Tsuzuki 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. 1006 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Seiji Yamaguchi 1006 Kadoma Kadoma, Kadoma City, Osaka Pref. Matsushita Electric Industrial Co., Ltd. F term (reference) 3B057 DA04 DA09 3B061 AD05 AE02

Claims (56)

[Claims] 1. A cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor, wherein the floor identification means detects an exhaust air volume of the fan motor. A vacuum cleaner configured with a means for identifying a floor surface based on a detection result of the exhaust air volume detecting means. 2. A cleaner body having a fan motor for sucking dust, and a floor identifying means for identifying a floor, wherein the floor identifying means detects a change amount of a current value of the fan motor. An electric vacuum cleaner comprising a current change detecting means, and performing floor identification based on a detection result of the current change detecting means. 3. A cleaner body having a fan motor for sucking dust, and a floor identifying means for identifying a floor, wherein the floor identifying means detects a change in the electric energy of the fan motor. An electric vacuum cleaner comprising an amount change detection unit, and performing floor identification based on a detection result of the power amount change detection unit. 4. A cleaner body having a fan motor for sucking dust, and a floor identification means for identifying a floor, wherein the floor identification means detects a change in the number of revolutions of the fan motor. An electric vacuum cleaner comprising a rotation change detecting means, and performing floor identification based on a detection result of the rotation change detecting means. 5. A cleaner body having a fan motor for sucking dust, a suction tool, and a floor identification means for identifying a floor surface, wherein the floor identification means detects a load of the suction tool. An electric vacuum cleaner comprising load detecting means, and performing floor identification based on the detection result of the load detecting means. 6. A cleaner body having a fan motor for sucking dust, a suction tool, and floor identification means for identifying a floor, wherein the floor identification means is connected between the suction tool and the floor. An electric vacuum cleaner comprising static electricity detecting means for detecting static electricity generated between the two, and performing floor identification based on the detection result of the static electricity detecting means. 7. A cleaner body having a fan motor for sucking dust, a rotary brush, a nozzle motor for driving the rotary brush, and an overcurrent protection element for preventing an overcurrent from flowing through the nozzle motor. And a floor identification means for identifying a floor surface, wherein the floor identification means is constituted by protection element voltage detection means for detecting a voltage of the overcurrent protection element, and the floor identification is performed by the protection element. Vacuum cleaner based on the detection result of voltage detection means. 8. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, a driving means for driving the nozzle motor, and a floor surface. An electric cleaning device, comprising: a floor surface identification unit for detecting the voltage of the driving unit; and the floor surface identification unit configured by a driving element voltage detection unit for detecting a voltage of the driving unit. Machine. 9. A cleaner body having a fan motor for sucking dust, a rotating brush, a suction tool having a nozzle motor for driving the rotating brush, and a floor identifying means for identifying a floor, A vacuum cleaner, wherein the floor surface identification unit is configured by a line voltage detection unit that detects a voltage of a supply line that supplies power to the nozzle motor, and the floor surface is identified based on a detection result of the line voltage detection unit. 10. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and floor identification means for identifying a floor. A vacuum cleaner, wherein the floor identification means is constituted by a temperature detection means for detecting a temperature of the nozzle motor, and the floor identification is performed by a detection result of the temperature detection means. 11. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and a floor identification means for identifying a floor, An electric vacuum cleaner, wherein the floor identification means comprises noise frequency detection means for detecting the frequency of a noise component included in the current supplied to the nozzle motor, and the floor identification is performed based on the detection result of the noise frequency detection means. 12. A cleaner body having a fan motor for sucking dust, a rotating brush, a suction tool having a nozzle motor for driving the rotating brush, and a floor identification means for identifying a floor, The floor surface identification means is constituted by noise change amount detection means for detecting a change amount of a noise component included in the current supplied to the nozzle motor, and the floor surface is identified based on the detection result of the noise change amount detection means. Vacuum cleaner. 13. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and a floor identification means for identifying a floor, An electric vacuum cleaner, wherein the floor identification means comprises a sound detection means for detecting the sound of the suction tool, and the floor identification is performed based on a detection result of the sound detection means. 14. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and floor identification means for identifying a floor, A vacuum cleaner, wherein the floor surface identification means is constituted by a back electromotive force detection means for detecting a back electromotive force generated by rotation of the nozzle motor, and the floor surface is identified based on a detection result of the back electromotive force detection means. 15. The vacuum cleaner according to claim 14, wherein the back electromotive force is detected by a voltage of a nozzle motor. 16. The vacuum cleaner according to claim 14, wherein the back electromotive force is detected by a current supplied to the nozzle motor. 17. The vacuum cleaner according to claim 14, wherein the back electromotive force is detected based on an on-time of a current supplied to the nozzle motor. 18. The vacuum cleaner according to claim 14, wherein the back electromotive force is detected based on an off time of a current supplied to the nozzle motor. 19. The vacuum cleaner according to claim 14, wherein the back electromotive force is detected by a voltage of a power supply line to the nozzle motor. 20. A cleaner body having a fan motor for sucking dust, a floor identifying means for identifying a floor, and a fan for controlling electric power supplied to the fan motor in accordance with an output of the floor identifying means. The vacuum cleaner according to any one of claims 1 to 19, further comprising a motor control unit, wherein the electric power supplied to the fan motor is controlled in accordance with an identification result of the floor surface identification unit. 21. The floor surface discriminating means at least discriminates between a carpet and a tatami mat and controls the carpet to increase the power supplied to a fan motor.
An electric vacuum cleaner according to the item. 22. The electric cleaning apparatus according to claim 1, wherein the output value of the floor identification means is controlled to increase the power supplied to the fan motor as the load is determined to be heavy. Machine. 23. The apparatus according to claim 1, wherein when the output value of the floor identification means is identified as being equal to or greater than a predetermined value, the power supplied to the fan motor is reduced.
An electric vacuum cleaner according to the item. 24. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, floor identification means for identifying a floor, and a floor identification means. The vacuum cleaner according to any one of claims 1 to 19, wherein the number of revolutions of the nozzle motor is controlled according to an output of the identification unit. 25. The floor identification means at least distinguishes between a carpet and a tatami mat, and controls the rotation speed of the nozzle motor in the carpet so that the rotation speed of the nozzle motor is increased.
The vacuum cleaner according to any one of claims 9 and 24. 26. The apparatus according to claim 1, wherein the output value of the floor identification means is controlled so that the higher the load is, the higher the rotation speed of the nozzle motor is. Vacuum cleaner. 27. The method according to claim 1, wherein when the output value of the floor surface discriminating means is discriminated as being equal to or greater than a predetermined value, the rotation speed of the nozzle motor is controlled to be low. Vacuum cleaner as described. 28. The apparatus according to claim 1, wherein the number of revolutions of the nozzle motor is feedback-controlled in accordance with the output result of the floor surface identifying means so that the number of revolutions is the same on all floor surfaces.
The vacuum cleaner according to claim 1. 29. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, floor identification means for identifying a floor, and this floor. 20. The vacuum cleaner according to claim 1, wherein power supplied to the fan motor or the nozzle motor is controlled according to an output of the identification unit. 30. An operation unit for outputting an input control signal of a fan motor and a nozzle motor from an end of a main body, and the fan motor and the nozzle are output in accordance with a signal sent from the operation unit and an output of a floor identification unit. The vacuum cleaner according to any one of claims 1 to 29, wherein the control content of the motor is set. 31. A signal line for sending a signal from the operation unit to the main body, and one of a power supply line for a nozzle motor is formed as a common line, and a voltage change input from the other signal line is subjected to the signal processing. The vacuum cleaner according to claim 30, wherein the floor surface is identified by inputting the information to a section. 32. The vacuum cleaner according to claim 1, further comprising a display unit for outputting a signal from the main body before the main body. 33. A display section for outputting a signal from the main body before the main body, and one of a power supply line and a display line of the nozzle motor is formed as a common line, and a voltage input from the other display line. 33. The vacuum cleaner according to claim 32, wherein the floor is identified by inputting a change to the signal processing unit. 34. The vacuum cleaner according to claim 33, wherein the display line and the signal line are shared. 35. A dust detection means for detecting sucked dust disposed on the suction tool side from the main body, and a fan motor,
The vacuum cleaner according to any one of claims 1 to 34, wherein the vacuum cleaner controls a nozzle motor. 36. A dust detection means arranged on the suction device side from the main body, a dust signal processing unit which receives a signal from the dust detection means and controls a fan motor or a nozzle motor, and a power supply to the nozzle motor. 36. The vacuum cleaner according to claim 35, wherein one of the line and the dust signal line is formed as a common line, and a voltage change input from the other dust signal line is input to the signal processing unit to identify the floor surface. . 37. The vacuum cleaner according to claim 30, wherein an output value of the floor identification means is input in synchronization with a power supply frequency. 38. A timer which starts timing after a lapse of a certain time from ZVP and a timer which stops when the output value of the floor identification means becomes equal to or more than a comparative value, and identifies the floor from this timer value. The vacuum cleaner according to any one of claims 30 to 37. 39. The vacuum cleaner according to claim 30, wherein the floor identification and other signals are switched in a time series manner. 40. Dust collecting amount detecting means for detecting the amount of dust collected in the dust collecting chamber, and dust collecting amount notifying means for notifying the amount of collected dust based on the judgment result of the collecting amount determining means. The vacuum cleaner according to any one of claims 1 to 39. 41. A cleaner body having a fan motor for sucking dust and a dust collecting chamber for storing the sucked dust, a floor surface identifying means for identifying a floor surface, and detecting the amount of dust collected in the dust collecting chamber. A dust collection amount determining unit that performs correction, a dust collection amount correcting unit that corrects a determination result of the dust collection amount determining unit in accordance with an output of the floor surface identification unit, and a dust collection unit that collects dust based on a correction result of the dust collection amount correction unit. 41. A dust collecting amount notifying means for notifying the amount.
The vacuum cleaner according to claim 1. 42. A vacuum cleaner body having a fan motor for sucking dust and a dust collecting chamber for storing the sucked dust, a floor identifying means for identifying a floor, and detecting the amount of dust collected in the dust collecting chamber. A dust collection amount determining unit that performs correction, a dust collection amount correcting unit that corrects a determination result of the dust collection amount determining unit in accordance with an output of the floor surface identification unit, and the fan based on a correction result of the dust collection amount correcting unit. An electric power supplied to the motor is controlled.
The vacuum cleaner according to claim 1. 43. A cleaner body having a dust collection chamber for storing sucked dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and a floor identifying means for identifying a floor. A dust collection amount detection unit that detects the amount of dust collection in the dust collection chamber, and a dust collection amount correction unit that corrects the determination result of the dust collection amount determination unit according to the output of the floor surface identification unit.
43. The electric vacuum cleaner according to claim 1, wherein electric power supplied to the nozzle motor is controlled based on a correction result of the dust collection amount correction unit. 44. A cleaner body having a fan motor for sucking dust and a dust collecting chamber for storing the sucked dust, a rotating brush, a suction tool having a nozzle motor for driving the rotating brush, and a floor surface. A floor surface identifying means for identifying, a dust amount determining means for detecting an amount of dust collected in the dust collecting chamber, and a dust amount for correcting a result of the dust amount determining means according to an output of the floor surface identifying means. 44. A correction unit, and controls power supplied to the fan motor or the nozzle motor based on a correction result of the dust collection amount correction unit.
An electric vacuum cleaner according to the item. 45. A dust detection means provided in the intake passage for detecting dust to be sucked, and dust detection notifying means for notifying dust detection based on a detection result of the dust detection means. 36. The vacuum cleaner according to any one of 36. 46. A dust detection means provided in an intake passage for detecting dust to be sucked, a floor identification means for identifying a floor, and a detection result of the dust detection means corrected according to an output of the floor identification means. The vacuum cleaner according to any one of claims 1 to 36 and 42, further comprising: dust detection / correction means for performing dust detection and notification means for notifying dust detection based on a correction result of the dust detection / correction means. . 47. A cleaner body having a fan motor for sucking dust, a suction tool, dust detecting means provided in an intake passage for detecting dust to be sucked, floor identifying means for identifying a floor, and a floor identifying means. 2. A dust detection and correction means for correcting a detection result of said dust detection means in accordance with an output of a surface identification means, and controlling electric power supplied to said fan motor based on a correction result of said dust detection and correction means. 43. The vacuum cleaner according to any one of -36 and -42. 48. A rotary brush, a suction tool having a nozzle motor for driving the rotary brush, dust detection means provided in the intake passage for detecting dust to be sucked, floor identification means for identifying a floor, and floor identification means. A dust detection correcting means for correcting a detection result of the dust detection means according to an output of the floor identification means, and controlling power supplied to the nozzle motor based on a correction result of the dust detection correcting means. 1 to
43. The vacuum cleaner according to any one of 36 and 42. 49. A cleaner body having a fan motor for sucking dust, a rotary brush, a suction tool having a nozzle motor for driving the rotary brush, and dust detecting means provided in an intake passage for detecting dust to be sucked. A floor identification means for identifying a floor, a dust detection correction means for correcting a detection result of the dust detection means in accordance with an output of the floor identification means, and a dust detection correction means based on a correction result of the dust detection correction means. The electric vacuum cleaner according to any one of claims 1 to 36 and 42, wherein electric power supplied to a fan motor or electric power supplied to a nozzle motor is controlled. 50. The vacuum cleaner according to claim 7, wherein the nozzle motor for driving the rotary brush is constituted by an inverter motor. 51. The floor surface identification means comprising means for detecting the number of revolutions of an inverter motor for a nozzle motor.
Vacuum cleaner as described. 52. The vacuum cleaner according to claim 50, wherein the floor identification means is constituted by current detection means of an inverter motor for a nozzle motor. 53. The vacuum cleaner according to claim 1, wherein the fan motor is constituted by an inverter motor. 54. The floor identification means comprises means for detecting the number of revolutions of an inverter motor for a fan motor.
Vacuum cleaner as described. 55. The vacuum cleaner according to claim 53, wherein the floor identification means is constituted by current detection means of an inverter motor for a fan motor. 56. The vacuum cleaner according to claim 1, wherein a power supply voltage is detected and the identification result of the floor identification means is corrected.