JPH0473033A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To enable the output of an electric blower to be directly controlled with signal from a sensor by providing a cleaner main-body, with a first control means for controlling the electric blower, to provide a section near at hand, with a second control means for enabling the detecting signal of the sensor set at a brush section, to be taken in, and by performing double-throw communication with both the control means. CONSTITUTION:When it is discriminated by a COU 53 near at hand, that a floor surface is of a matted floor or a board floor, then the waveform of power to be fed to a brush section 18 by driving a TRIAC 56 with a driver 57 is set to be a half-wave, and the waveform is detected by a full wave/half-wave detector 61. In the case of the Half-wave, a TRIAC 62 is set in a non-conduction state, and a brush motor 20 is not driven and so a rotary brush is not rotated, and with a suction force according to the matted floor or the board floor, the suction of an electric blower 4 is performed. In the meantime, after the signal of working motor data is received by a main body CPU 43, and when following fixed time fed-signal cannot be received even after the lapse of a specified time, then by the main body CPU 43, an 'OFF' mode is set, and the operation of the electric blower 4 is stopped.

Description

Detailed Description of the Invention [Industrial Field of Application] This invention relates to a vacuum cleaner used in general households, particularly a rotating brush driven by a brush part and a sensor for detecting the type of floor surface, etc. The present invention relates to a vacuum cleaner having:

[Prior Art] FIG. 4 is a schematic diagram showing the configuration of a conventional vacuum cleaner disclosed in, for example, Japanese Patent Application Laid-Open No. 1-198519. It has an electric blower (4) that is supplied with power from a power source (3), and the electric blower (
On the exhaust side of 4), an exhaust port (5) or the main body (2) is provided.

A dust collection chamber (6) is provided on the intake side of the electric blower (4), and the upper part of the dust collection chamber (6) is composed of a lid (7) that can be opened and closed. 7) has an intake port (8), an opening/closing lid (7) and a dust collection chamber (6).
) is sealed by a seal (9).

Furthermore, front wheels (1o) and (11) are located at the bottom of the main body (2).
is provided, thereby making the main body (2) movable.

Further, the base end of a flexible hose (12) is connected to the intake port (8), and a remote part (13) is provided at the tip of the hose (12). hose(
By connecting the proximal end of 12) to the intake port (8),
The remote part (13) and the main body (2) are electrically connected.

The remote section (13) includes a remote switch (14) for selecting the power consumption of the electric blower (4) or setting it to "auto" mode, a switch (15) for switching the brush motor to 0N10FF, and a switch (15) for selecting the power consumption of the electric blower (4) or setting it to "auto" mode, and a switch (15) for switching the brush motor to 0N10FF. It consists of a display section (16) that displays the selected operation mode.

Further, a suction pipe (17) is connected to the remote part (13), and a brush part (18) is connected to the tip of the suction pipe (17).

Furthermore, the brush portion (18), as shown in detail in FIG.
Insert the remote part (from the main body (2) into the floor brush main body (19)
It has a brush motor (20) which is supplied with electric power via a brush motor (20), and a rotating brush (21) is rotatably supported near the brush motor (20).
21) transfers the driving force from the brush motor (20) to the belt (
22).

A control means (23) is provided in the floor brush body (19).
The control means (23) includes a light emitting element (24) and a light receiving element (25) for detecting the type of floor surface.
Togaranaru sensor (26) and floor brush body (19)
A floor contact switch (27) consisting of a microswitch that detects that the bottom surface of the unit is in contact with the floor is connected.

Next, the operation will be explained.

When “auto” moto is set by remote switch (14), sensor (26) and floor contact switch (27
) or start the operation.

The light rays emitted from the light emitting element (24) of the sensor (26) are reflected on the floor surface and received by the light receiving element (25), as shown by the broken line arrow in the figure.

The reflectance of the reflected light received by the light receiving element (25) differs depending on the type of floor surface.
The amount of light received by the light receiving element (25) is different, and accordingly, the amount of light received by the light receiving element (25) is different.
5) The strength of the signal output from 5) differs.

For example, in the case of a paper package, the reflectance is lower than that between a tatami mat or a board, and since it reflects diffusely, the amount of light received by the light receiving element (25) is small, thereby making it possible to distinguish between the paper package, the tatami mat, and the board.

Further, the identification signal output from the light receiving element (25) is input to the control means (23), and the control means (23) identifies the type of floor surface based on this identification signal, and determines whether the floor surface is paper-wrapped or not. In this case, the rotating brush (21) is driven by the brush motor (20), and the electric blower (4) of the main body (2) is controlled to operate at high speed.

In addition, if the floor is between tatami mats or wooden boards, use a brush motor (20
) to stop the rotating brush (21) and control the electric blower (4) to operate at low speed.

Furthermore, when the brush part (18) separates from the floor surface, the output signal level of the floor surface contact switch (27) changes, and the control means (for inputting the output signal of the floor surface contact switch (27))
23) controls the brush motor (20) and the electric blower (4) to stop based on the change in the output signal level.

[Problem to be solved by the invention] Since the conventional vacuum cleaner is configured as described above, the control means (23) of the brush part (18) is controlled by the remote part (
Electric blower (4) can be turned on by switching the switch (13).
), the remote section (1
3) The life of the switching circuit of the switch is short, and the sensor (
Since the output of the electric blower (4) is not directly controlled by the output signals of the electric blower (26) and the floor contact switch (27), there is a problem of lack of reliability.

In order to solve this problem, the electric blower (4) is
Is there any way to directly control the output of the circuit? This poses the problem of increasing the number of signal lines and complicating the circuit configuration.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vacuum cleaner that can directly control the output of an electric blower using a signal from a sensor in the brush section.

[Means for Solving the Problems] A vacuum cleaner according to the present invention includes a vacuum cleaner body having an electric blower, a switch for selecting the power consumption of the electric blower, and a display for displaying an operation mode according to the selected power. The vacuum cleaner has a hand part consisting of a hose part connected to the main body of the vacuum cleaner, and a rotary brush that is driven by a sensor and a motor that detects the type of floor surface, etc., and is disposed at the tip of the hose part. a brush section, a first control means for controlling an electric blower disposed in the vacuum cleaner body, a display section disposed at the hand section and a brush motor, and a detection signal from a sensor provided in the brush section; It is characterized in that the second control means that can be taken in, the first control means, and the second control means perform two-way communication.

[Function] The vacuum cleaner according to the present invention selects the power consumption of the electric blower using a switch on the hose section connected to the vacuum cleaner body, displays an operation mode corresponding to the selected power on the display section, and The type of the floor surface is detected by the sensor of the brush section disposed at the tip of the brush, and the second control means disposed at the hand controls the brush motor based on the signal from the sensor. By performing bidirectional communication with the second control means, the first control means receives a signal from the sensor of the brush part.
The control means controls the electric blower.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

As shown in Figure 2, the vacuum cleaner (1) has a built-in electric blower with variable input power inside the main body (2).
) is connected to a flexible hose (12).

A remote part (13) as a hand part is provided at the tip of the hose (12), and by connecting the proximal end of the hose (12) to the main body (2), the remote part (13)
3) and the main body (2) are electrically connected.

Further, a suction pipe (17) is connected to the remote part (13), and a brush part (18) is connected to the tip of the suction pipe (17).

Furthermore, front wheels (10) and (11) are located at the bottom of the main body (2).
is provided, thereby making the main body (2) movable.

Furthermore, two pairs of electric wires are built inside the hose (12), and are used as an AC power source and a data signal medium, which will be described later.

As shown in FIG. 3, the remote section (13)
The sensor power plan control section (30) and the power control section (31) are separated, and the sensor power brush control section (30) has an "auto" mode switch (32), an on/off switch (33), and an "auto" display section. ” mode LED (34), and on LED (
35).

The power control section (31) has a "strong", "medium" and "weak" mode switch (
36), (37), (38), "Strong""Medium" [Weak JLED (39), (40) to display the selected "Strong", "Medium", and "Weak" mode.

(41), and an “off” switch (42) that stops the operation.
).

FIG. 1 is a block diagram showing the electric circuit of the vacuum cleaner shown in FIG.
It is divided into a brush part (18).

The main body part includes a main body (2) that is built in the main body (2), and a
) as a first control means for controlling the operation of the main body CPU.
(43) is installed, and the serial data receiving terminal (43a) of the main body CPU (43) is equipped with a receiver (44).
is connected to the serial data transmission terminal (43b)
A transceiver (45) is connected to the receiver (44) and the transceiver (45), and a signal line (50a) is connected to the receiver (44) and the transceiver (45).
).

(50b) is connected.

Furthermore, a rectifier circuit (46) is connected to Vc c (43c) of the main body CPU (43).
A transformer (47) that converts the voltage of power from the AC power source (3) into a predetermined value is connected to the AC power source (3).

Furthermore, a drive circuit (49) that drives a triac (48) connected in series to the electric blower (4) is connected to the output terminal (43d) of the main body CPU (43). ) is controlled by the conduction angle of the triac (48), that is, the pulse output from the output terminal (43d) of the main CPU (43).

On the other hand, electric power from the AC power source (3) is supplied to the remote part (13) via electric wires (50c) and (50d) built into the hose (12).
A transformer (51) that converts the voltage of the supplied power into a predetermined value is connected to 50c) and (50d).

A rectifier circuit (52) is connected to the transformer (51), and a remote section (13) is connected to the rectifier circuit (52).
) as a second control means for controlling the operation of
(53) is connected.

Furthermore, the serial data receiving terminal (
A receiver (54) is connected to the serial data transmission terminal (53b), and a transceiver (55) is connected to the serial data transmission terminal (53b).
) are connected to the receiver (54) and transceiver (55) of the main body (2) via signal lines (50a) and (50b).
45) is connected.

In addition, the local CPU (53) is equipped with a driver circuit (57) that drives a triac (56) arranged in series with the signal line (50d) to transform the current waveform from the power supply (3) into a full wave/half wave. ) are connected.

In addition, the local CPU (53) has an "auto" mode switch (32), an on/off switch (33), an "auto" mode LED (34) and an on LED (35) as a display section.
), R mode switch (3
6) , (37) , (38) , "Strong" to display the selected "Strong", "Medium", and "Weak" modes
"Medium""Weak JLED (39), (40) (41
), and an "off" switch (42) for stopping the operation.

Then, the electric power transformed into full wave/half wave from the remote part (13) is transmitted to the electric wire (5) attached to the suction pipe (17).
The electric wires (58a) and (58b) are supplied to the brush part (18) via the electric wires (58a) and (58b).
58b) includes a rectifier circuit (59) that rectifies the supplied power.
) and a pressure reducing resistor (60) are connected in series.

Furthermore, the electric wires (58a) and (58b)l: include a full-wave and half-wave detector (61) that detects the waveform (full wave or half wave) of the supplied power, and a brush that drives the rotating brush (21). A motor (20) is connected in parallel, and a triac (62) controlled by the output of a full-wave and half-wave detector (61) is connected in series to the brush motor (20).

Further, the current rectified by the rectifier circuit (59) is supplied to the full-wave and half-wave detection section (61) and the sensor section (26), and the sensor section (26) is connected to the signal line (62a).
, (62b) are connected to the local CPU (53) and the rectifier circuit (52).

The operation of this embodiment will now be explained.

When connected to the vacuum cleaner's power plug or outlet, the local CPLI (53) presets the built-in timer to a predetermined time and sets the mote flag, which remembers the type of sui-sochi input, to "off" mode. .

Then, in order to instruct the main body (2) to perform the "off" operation, the mote data is created in a predetermined frame format, and the mote data is output from the serial data transmission terminal (53b).

Then, the mode data is output to the transceiver (
55), signal lines (50a), (50b), and a receiver (44) to the serial data receiving terminal (43a) of the main body CPU (43).

Furthermore, when the main body CPU (43) detects mode data input from the serial data receiving terminal (43a), it decodes the content of the data, and if the data content is the "off" mode, it sets the operation flag. It is set to "off" operation, and then returns response data indicating that the data has been successfully received.

After sending the response data, "off" operation is performed.

In "off" operation, the output terminal (43) of the main body CPU (43)
By setting d) to no output, the conduction angle of the triac (48) is set to θ°, and the input power of the electric blower (4) is set to 0.

On the other hand, the response data is sent to the serial data transmission terminal (43b)
Transceiver (45), signal line (50a)
, (50b), and is input to the serial data receiving terminal (53a) of the local CPU (53) via the receiver (54).

Then, the local CPU (53) confirms the received response data and ends the "off" mode transmission/reception operation.

As a result, the electric blower (4) is always in a stopped state when the power is turned on.

Next, the local CPU (53) switches the connected "auto" mode switch (32) and on/off switch (33).
, r strong”, “medium”, and “weak” mode switch (36),
(37), (38), the "off" switch (42) is scanned to determine the presence or absence of switch input.

If there is no switch input, mode data is communicated in the same manner as described above, and after receiving response data, the LED corresponding to the corresponding mode is turned on.

If there is no key power after the power is turned on, the "off" mode data will be transmitted again.

That is, the regular transmission means that the operation mode held by the CPU (53) at hand is repeatedly transmitted, thereby repeating the operation instructions for the main body, thereby realizing the avoidance of malfunctions of the main body.

Also, for example, if the "weak" switch (38) is pressed,
The local CPU (53) enters the "weak" mode, and transmits the "weak" mode data in the same manner as described above.

Then, the main CPU (4) receives the “weak” mode data.
3) sets the operation flag to "weak" and returns a response,
The triac (48) is driven by the drive circuit (49) to perform "weak" operation.Then, the response data is sent to the serial data transmission terminal (43).
b), transceiver (45), signal line (50
a), (50b), and the receiver (54) to the serial data receiving terminal (53a) of the local CPU (53).

Furthermore, the local CPU (53') confirms the received response data and turns on the LED (41) corresponding to the "weak" mode.

In addition, in the "Strong" and "Medium" modes, the same goes for row 0. Also, when the "Auto" mode switch (32) of the sensor power brush control section (30) is pressed,
The local CPU (53), which receives the signal from the "auto" mode switch (32), determines the type of floor surface based on the signal from the sensor section (26), and if the floor surface is carpet, the driver (57) ) drives the triac (56) to make the waveform of the power supplied to the brush section (18) full-wave, and "auto" mode data is transmitted.

Furthermore, when the main body CPU (43) detects mode data input from the serial data receiving terminal (43a), it decodes the content of the data, and if the content of the data is "auto" mode, it sets the operation flag. The device is set to "auto" operation, and then returns response data indicating that the data was successfully received.

Then, after sending the response data, it operates in "auto" mode, that is, suction is performed with a suction force that corresponds to the type of floor surface (wiping surface).

On the other hand, the response data is sent to the serial data transmission terminal (43b)
Transceiver (45), signal line (50a)
, (50b), and the serial data receiving terminal (53a) of the local CPU (53) via the receiver (54).
is input.

Then, the local CPU (53) confirms the received response data and turns on the "auto" mode LED (34) corresponding to the "auto" mode.

The waveform of the supplied power is measured by a full-wave and half-wave detector (61
), and in the case of full wave, triac (62)
becomes conductive, the brush motor (20) is driven, and the rotating brush (21) is rotated by the brush motor (20).

If the CPU (53) at hand determines that the floor is between tatami mats or wooden boards, the driver (57) drives the triac (56) to change the waveform of the power supplied to the brush section (18) to a half wave. , the "auto" mode corresponding to the "auto" mode is set and the ED (34) is lit.

The waveform of the supplied power is measured by a full-wave and half-wave detector (61
), and in the case of half wave, triac (62)
is in a non-conducting state, the brush motor (20) is not driven, the rotating brush (21) is not rotated, and the electric blower (4) draws suction with a suction force corresponding to the space between the tatami mats or boards.

Note that when the "on" mode is instructed by the on/off switch (33), the brush motor (20) continues to be driven until the on/off switch (33) is turned off. On this occasion,
The ON LED (35) lights up.

On the other hand, if the main body CPU (43) cannot receive the next scheduled transmission even after a predetermined period of time has passed after receiving the operation mode data, the main body CPU (43) sets the "off" mode and sets the electric blower ( 4) Stop operation.

The above-mentioned state occurs when the local CPU (53) stops transmitting at regular intervals due to runaway or the like (the hose (12) comes off from the main body (2)).

This operation avoids an inadvertent suction operation of the main body (2).

[Effects of the Invention] As explained above, according to the present invention, the type of floor surface, etc. is detected by the sensor of the brush part, the second control means controls the brush motor based on the signal from the sensor, and the second control means controls the brush motor based on the signal from the sensor. Since the control means and the second control means perform two-way communication so that the first control means controls the electric blower based on the signal from the sensor of the brush part, the number of signal lines does not increase. The output signal of the sensor can directly control the output of the electric blower, allowing stable operation that is not affected by the switch on the hand.

[Brief explanation of the drawing]

FIG. 1 is an electric circuit diagram of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a diagram showing a remote part, FIG. 3 is a schematic diagram showing a vacuum cleaner according to an embodiment of the invention, and FIG. The figure is a schematic diagram showing the configuration of a conventional vacuum cleaner, and FIG. 5 is a schematic diagram showing the configuration of a brush section of the conventional vacuum cleaner. In the figure, (2) is the main body, (12) is the hose, and (13) is the main body.
) is the remote part, (18) the brush part, (32) is the "auto" mode switch, (33) is the on/off switch, (3
4) is the "auto" mode LED, (35) is the ON LED,
(36) is a "strong" mode switch, (37) is a "medium" mode switch, (38) is a "weak" mode switch, (
39) is “strong J LED, (40) is [medium J LED, (
41) is "weak JLED", (42) is "off" switch, (
43) is the main CPU, and (53) is the local CPU. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent: Patent Attorney Masuo Oiwa (2 others) Figure 25) Tsubodai Figure Monbyo - @Kuhochojin Figure Imada Mibashi Brush Stand Figure 5

Claims (1)

[Claims] A vacuum cleaner body having an electric blower, a hand portion consisting of a switch for selecting the power consumption of the electric blower, and a display section for displaying an operation mode according to the selected power, and a hose portion connected to the vacuum cleaner body. and a brush part that has a rotary brush driven by a sensor and a motor that detects the type of floor surface and is disposed at the tip of the hose part, wherein an electric blower is installed in the vacuum cleaner body. A first control means for controlling is arranged, a second control means for controlling the display part and the brush motor and capable of capturing a detection signal of a sensor provided in the brush part is arranged in the hand part, and a second control means for controlling the display part and the brush motor is arranged, A vacuum cleaner characterized in that the control means and the second control means perform two-way communication.