JPH06284998A - Electric cleaner - Google Patents

Abstract

PURPOSE:To provide the electric cleaner easy to control by lightening the operational parts of handling position. CONSTITUTION:In this electrical cleaner which consists of the body 1 housing a blower motor generating the suction force, the floor brush 6 connected to the tip of hose 2 which is connected to this body 1 and the operational part installed in handling position 18 of the hand holding part 4 of the hose 2 giving blower motor order of motion, the transmitter 22 outputting the information detected at the motor control input sensor by radio, and the receiver 23 installed at the body 1, receiving the signal outputted from the transmitter 22, are installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly to an electric vacuum cleaner in which a hand-operated portion is lightened and operability is improved.

[0002]

2. Description of the Related Art FIG. 6 is an external view showing a conventional vacuum cleaner,
FIG. 7 is a sectional view showing a structure of a floor brush of a conventional electric vacuum cleaner, FIG. 8 is a sectional view showing a hose proximal portion of the conventional electric vacuum cleaner, and FIG. 9 is a circuit showing a drive control circuit of the conventional electric vacuum cleaner. It is a figure. In the figure, 1 is a cleaner body, 2 is a bellows hose (hereinafter referred to as a hose), 3 is a hose cover, 4 is a hose hand portion, which is attached to the tip of the hose 2 and which will be described later by a hand operation portion 18 and the like. Is provided. Reference numeral 4a is an upper case of the hose proximal portion, 4b is a lower case, and 4c is a grip portion. Reference numeral 5 is a connecting pipe, and 6 is a floor brush.
Reference numeral 18 denotes a hand-held operation unit having an operation button 18a.
A control switch 19 is opened and closed by operating the operation button 18a. Reference numeral 20 denotes a mounting board on which a control switch 19 is mounted. Reference numeral 21 is a wiring for connection. Reference numeral 17 is a transformer of a constant voltage power supply circuit.

Reference numeral 7 is a floor brush lower case, 8 is a front wheel of the floor brush, 9 is a rear wheel of the floor brush, 10 is a belt, and 11 is a rotary brush motor. A rotating brush 12 is driven by a motor 11 via a belt 10. A brush movement sensor 13 outputs a pulse signal for calculating the moving speed and moving distance of the floor brush 6. Reference numeral 15 is a substrate, and 16 is a code.

The above vacuum cleaner, as shown in FIG.
The main body 1 is provided with a blower motor 25 whose input power is variable, and electric power is supplied to the blower motor 25 by a triac 27 as a power supply control element for controlling the voltage of the commercial power supply 26 to a predetermined voltage. Then, the hand operation unit 18 includes a constant voltage power supply circuit 17a that converts the voltage of the power from the AC power supply 26 into a predetermined value, and power is supplied from the constant voltage power supply circuit 17a to a microcomputer or the like. There is. Further, the hand operation unit 18 is
It has a CPU 28 for controlling the operation of each unit
Reference numeral 28 denotes a BCR drive circuit 29 for controlling the triac 27, a display 30 including a light emitting diode, and a switch 1
9, BC for controlling the triac 31 as a power source control element for controlling the voltage to the floor brush 6 to a predetermined voltage
The R drive circuit 32 and the terminal a are connected. A brush movement sensor 13 for detecting the movement of the floor brush 6 is connected to the terminal a via the terminal b, and the brush motor 11 whose power source is controlled by the triac 31 is arranged on the floor brush 6. There is. Also, CP
U28 has a calculation means for calculating the moving speed or moving distance of the floor brush 6 based on the signal from the brush movement sensor 13.

The brush movement sensor 13 is shown in FIG.
As shown in (a), the groove portion 7 of the lower case 7 of the floor brush 6
A has a rotating shaft 36 rotatably supported by a bearing 35, and a wheel 9 that rotates in contact with the floor surface is fixed to the rotating shaft 36. A slit disc 37 having a plurality of shading plates 37a shown in FIG. 3B is fixed to one end of the rotary shaft 36, and the slit disc 37 faces the slit disc 37 and is turned on by the shading plate 37a of the slit disc 37. Or OF
A transmissive optical sensor 38 that emits light is disposed.

The conventional electric vacuum cleaner is constructed as described above, and the rotation of the wheel that rotates with the movement of the floor brush 6 is converted into a pulse number by the brush movement sensor 13 and detected, and a signal from the brush movement sensor 13 is detected. By floor brush 6
The moving speed of the blower motor 25 is calculated by the calculating means, and the blower motor 25 is driven and controlled by the drive controlling means based on the moving speed of the floor brush 6 calculated by the calculating means. Therefore, as the speed increases, the power of the blower motor 25 is increased to increase the floor brush. 6
The optimum power can be automatically determined according to the moving speed of the.

[0007]

In the conventional vacuum cleaner as described above, in order to effectively utilize the data of the sensor such as the brush movement sensor installed on the floor brush 6, the hand operation unit 18 is used. The data processing section having the CPU 28 must be provided to process the data. This is because the signal from the brush movement sensor 13 is transmitted by wire, and if the main line of the electric wire between the floor brush 6, the hand operation unit 18 and the main body is reduced as much as possible, such an arrangement is made. Therefore, a component such as a transformer that is large in weight and size is mounted on the hand operation unit. For this reason, there is a problem that the hand-side operation unit 18 becomes large in size and weight, which imposes a burden on the user when cleaning. Further, the number of electric wires between the hand operation unit 18 and the floor brush 6 is four, which causes a problem of cost increase.

The present invention has been made to solve the above problems, and a floor brush is provided with a transmitter for wirelessly transmitting signals from various sensors provided on the floor brush.
The main body is equipped with a receiving device that receives signals from the transmitting device,
An object of the present invention is to obtain an electric vacuum cleaner with improved operability by wirelessly transmitting data between the floor brush and the main body.

[0009]

An electric vacuum cleaner according to the present invention comprises a cleaner body having a blower motor for generating a suction force, and a floor brush connected to the tip of a hose connected to the cleaner body. In a vacuum cleaner having a hand operation unit that is provided at a hose hand unit and that gives a command to operate the blower motor, a transmitter that is provided at the floor brush and wirelessly transmits information detected by a motor control input information sensor, The vacuum cleaner body is provided with a receiving device that receives a signal transmitted by the transmitting device.

[0010]

In the present invention, the transmitter provided on the floor brush wirelessly transmits the information detected by the motor control input information sensor, and the receiver provided on the main body transmits the signal transmitted from the transmitter. Is received and the blower motor or the like is driven and controlled by the received signal, it suffices to send only switch information such as high, medium, low, and off for operating the cleaner from the hand operation unit. Further, the number of electric wires between the hand operation unit and the floor brush is reduced.

[0011]

1 is an external view of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing the construction of a floor brush of the vacuum cleaner of FIG. 1, and FIG. 3 is a schematic view of the vacuum cleaner of FIG. FIG. 4 is a cross-sectional view showing the hose proximal portion, and FIG. 4 is a circuit diagram showing a drive control circuit of the electric vacuum cleaner of FIG. 1 to 4, in FIGS.
The parts to which the same reference numerals are given indicate the same or corresponding parts. Reference numeral 22 denotes an infrared light emitting portion as an infrared transmitter, which is provided in the lower case 7 of the floor brush 6. Reference numeral 21a is a light emitting element of an infrared light emitting section. Reference numeral 23 denotes an infrared light receiving portion as an infrared receiving device, which is provided in the main body 1. The infrared light emitting unit 22 and the infrared light receiving unit 23 are shown in FIG.
In the state shown in (2), that is, in the normal cleaning mode, the light emitted from the infrared light emitting unit 22 is
The mounting position is determined so that the floor brush 6 and the main body 1 can receive the light. Reference numeral 41 denotes an arithmetic processing unit (CPU) provided on the floor brush 6, which fetches detection signals of the brush movement sensor, that is, the cleaning operation sensor 13 and the floor surface sensor 14,
A signal for causing the infrared light emitting element 21a to emit light is output according to the detection signal. 42 is a battery as a power source. In addition,
Regarding the transmission of the sensor detection signal, the signal of the brush movement sensor 13 may be sent in the first frame, and the signal of the floor surface sensor 14 may be sent in the next frame. A switch input processing device 43 sends a signal corresponding to the operation of the switch 19 to the arithmetic processing device 44 of the main body 1 and outputs a signal for lighting the light emitting diode (LED) 30.

Next, the operation will be described. When the switch 18a of the hand operation unit 18 is pressed for cleaning, the switch information is sent to the arithmetic processing unit 44 via the switch input processing unit 43, and the arithmetic processing unit 44 outputs a signal to the BCR drive unit 29. . The BCR drive unit 29 is a triac 27
Is controlled to rotate the blower motor 25. At the same time, the detection signals from the floor surface sensor 14 and the cleaning operation sensor 13 are processed by the arithmetic processing unit 41, and the infrared light emitting unit 2
It is transmitted from 2 as an optical signal. This signal is received by the light receiving unit 23.
Is received, processed by the arithmetic processing unit 44, and the rotation of the blower motor 25 is controlled according to the detection signal of the sensor. The brush motor 11 is rotated when the floor surface is a carpet and stopped when the floor surface is a tatami mat. As described above, according to the present invention, since the hand operation unit 18 only transmits the operation information by the switch such as strong, medium, weak, and off to the main body 1, the circuit can be simplified and the weight can be reduced. can do. Further, the number of electric wires between the hand operation unit 18 and the floor brush 6 may be two.

As the floor surface sensor 14, a known one as shown in FIG. 5 may be used. In FIG. 5, 46 is a contactor, 4
Reference numeral 7 denotes a housing that accommodates the contactor 46 so as to be movable.
Reference numeral 48 is a light-shielding shaft, 49 is a spring, and 50 is an optical sensor, which is a transmissive optical sensor that is turned on or off by the light-shielding shaft 48. When the floor surface is soft like a carpet, the contactor 46 is pushed by the spring 49, so that the light shielding shaft 48 is lowered and the optical sensor 50 is turned on.
When the floor is stiff such as tatami or board, the contactor 46 moves up to the same position as the front wheel 8 and the rear wheel 9, and accordingly the light-shielding shaft 48 also moves up, so that the optical sensor 50 is turned off. As described above, the floor surface detection signal is output.

The floor sensor 14 and the cleaning operation sensor 1
Since the rotation of the blower motor and the rotary brush motor 3 is controlled by these detection signals, these are collectively referred to as a motor control input information sensor in this specification. As the sensor, a pressure sensor other than the above may be used.

Further, in the above embodiment, the sensor detection signal is transmitted by using infrared rays, but it may be transmitted by another medium such as radio waves. Further, although the floor brush including the rotating brush driven by the motor has been described, the same effect can be obtained even if the brush includes a so-called turbine brush or a floor brush in which the brush is fixed to the lower case.

[0016]

As described above, according to the present invention, the transmitter provided on the floor brush wirelessly transmits the information detected by the motor control input information sensor, and the receiver provided on the main body is the transmitter. Since it receives the signal sent from, the hand operation unit operates the vacuum cleaner with strong, medium, weak,
It is sufficient to send only the switch information such as off. Therefore, it is possible to reduce the weight of the hand operation unit by simplifying the circuit. Further, since the number of electric wires between the hand operation unit and the floor brush is reduced, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an external view of a vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a floor brush of the electric vacuum cleaner of FIG.

FIG. 3 is a cross-sectional view showing a hose proximal portion of the electric vacuum cleaner of FIG.

FIG. 4 is a cross-sectional view showing a drive control circuit of the electric vacuum cleaner of FIG.

FIG. 5 is an explanatory diagram illustrating a floor sensor.

FIG. 6 is an external view showing a conventional electric vacuum cleaner.

FIG. 7 is a cross-sectional view showing a configuration of a floor brush of a conventional electric vacuum cleaner.

FIG. 8 is a cross-sectional view showing a hose proximal portion of a conventional electric vacuum cleaner.

FIG. 9 is a circuit diagram showing a drive control circuit of a conventional electric vacuum cleaner.

FIG. 10 is an explanatory diagram illustrating a brush movement sensor.

[Explanation of symbols]

 1 Vacuum cleaner body 2 Hose 4 Hose hand part 5 Connection pipe 6 Floor brush 13 Brush movement sensor 14 Floor sensor 22 Infrared light emitting part 22a Infrared light emitting element 23 Infrared light receiving part

Claims (1)

[Claims] 1. A cleaner body containing a blower motor for generating a suction force, a floor brush connected to a tip of a hose connected to the cleaner body, and a command for operating the blower motor provided at a hand portion of the hose. In a vacuum cleaner having a hand-operated section for giving, a transmitter provided on the floor brush and wirelessly transmitting information detected by a motor control input information sensor; and a transmitter provided on the cleaner body. An electric vacuum cleaner, comprising: a receiving device for receiving a signal transmitted by.