JPS63315019A - Electric cleaner - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a vacuum cleaner using an electric floor suction tool equipped with a brush motor for driving a rotating brush.

(Example) Conventional technology In a vacuum cleaner, a power control mechanism is provided on the connecting pipe with a handle for connecting the extension pipe to the flexible hose to manually control the output of the electric blower inside the vacuum cleaner. The technique is disclosed in Japanese Patent Application Laid-Open No. 61-68024.

Furthermore, Japanese Patent Application Laid-Open No. 60-21730 discloses a vacuum cleaner in which a power control mechanism for an electric blower is incorporated into a connecting pipe for connecting an extension pipe, and an electric floor suction device and the electric blower are turned on and off with a single switch. is shown.

However, in the former, there is no relationship with the electric floor suction device, and in the latter, there is no technical idea to turn the electric floor suction device on and off separately from the electric blower. unable to stop.

(C) Problems to be Solved by the Invention The present invention provides a vacuum cleaner using an electric floor suction device, in which the electric blower and the brush motor are controlled in conjunction with each other, so that the rotating brush can be operated only when the electric blower is in operation. In addition to rotating, the rotation of the rotating brush is stopped even when the electric blower is in operation, so that it is possible to clean materials other than jutan floors, such as tatami floors and wooden floors, without damaging them.

(2) Means for solving the problems As shown in FIGS. 1 to 9, the vacuum cleaner of the present invention has a connecting pipe attached to the tip of a flexible hose connected to the main body of the vacuum cleaner. An electric floor suction device is connected to the vacuum cleaner body, and an electric blower in the vacuum cleaner body and a brush motor for driving a rotary brush in the floor suction device are remotely controlled by a hand-held control unit of the connecting pipe, The hand control unit has an output selector switch that turns on the electric blower and switches the output, a brush switch that turns on and off the brush motor when the electric blower is on, and has priority over the output selector switch and the brush switch. The present invention is characterized in that it has a stop switch that turns off the electric feeder and the brush motor. The output changeover switch is configured to sequentially and cyclically switch the electric blower to four stages: strong, medium, weak, and the weakest, each time the output changeover switch is pressed.

(e) Effect: With the above-described configuration, when the output selector switch of the hand control section of the connecting pipe is pressed, the output of the electric blower is controlled to a high level and turned on. Thereafter, each time the output changeover switch is pressed, the output of the electric blower is sequentially and cyclically switched from strong to medium to weak to weakest to strong. If the brush switch is pressed while the electric blower is on, the brush motor is turned on and off each time the brush switch is pressed, and the rotating brush alternately rotates and stops.

When the stop switch is pressed, the electric blower and the brush motor are turned off with priority over these switches, regardless of the operating states of the changeover switch and the brush switch.

Example) The structure of the vacuum cleaner of the present invention will be described below with reference to FIGS. 1 to 9.

(1) is a vacuum cleaner body that includes a built-in dust collector and an electric blower (2). (3> is an electric floor suction tool, which is equipped with a rotating brush (4), a brush motor (5) for driving the rotating brush, and a belt for transmitting rotational force (6).

(7) is a flexible hose connected to the main body (1);
A connecting pipe (9) with a handle part (8) is provided at the tip, an extension pipe (10) is connected to the pipe (9), and the extension pipe (10)
The floor suction device (3) is connected to the floor suction device (3). The flexible hose (7) has a pair of steel wires (11) that also serve as conductive wires (
11) and a pair of power supply lines (12) (12) are spirally provided, and the extension pipe (7) is provided with the floor suction device (3).
A pair of electric wires (13) (
13) is buried.

In the handle portion (8), (14) is connected to the pipe (9).
) with a top opening formed on the top side, forming a parts storage chamber in the front part. Inside the case (14) is a hand-held control unit (15) that controls on/off and power control of the electric blower (2) and also controls the on/off of the floor suction tool (3). A first control printed circuit board (17) equipped with control circuit components such as 16), and a plurality of display light emitting diodes (18).
a) to (18e) and switches (19a) (19b) (1
A second control printed circuit board (21
) and housed by inserting an insulating sheet plate (22). And the said it source transformer (16) is connected to the said power supply line <12> (12), and is supplied from the said vacuum cleaner main body (1) via the said power supply [1K (12) (12). Brush motor (5) supply.

The V power supply is stepped down and supplied to the local control unit (15), and is used as a t source only for the local control unit (15), so a small capacity one is used. (23) is a cover member that covers the upper opening of the case (14) and is fixed with screws, and the surface of this cover member has 1! as shown in FIG. button of the output selector switch (19g) that turns on the power and sequentially switches the output of the electric blower (2) into four stages (
24a) and a stop switch (1) that turns off all power.
9b) button (24b) and the brush switch (19c) button (24b) that turns the brush motor (5> on/off).
The operation button group (24) consisting of Four display light emitting diodes (18a) (18b) (18c) (18) displaying the output of the blower (2).
d) and rotating brush drive display light emitting diode (18e
) is connected to the operation button group (24).
It is placed in a more distant part. Kirani (26) is a current detection element mounted on the second control printed circuit board (21), and the nk supply! , I (12) (12)
) (7) AC flowing to the brush motor (5) by passing one of the connecting electric wires (27) (27>) connecting the electric wires (13) (13) through the center of the element (26).
It is designed to detect the current of a 100V power supply.

ξ et al. The vacuum cleaner main body (1) has the hand control section (15).
) from steel! (0) It houses a blower control circuit board (28) that controls the output of the electric blower (2) by a control signal transmitted through (11), and the board (28)
4. : is equipped with a small capacity second power transformer (29) to step down and supply a 100Vt source.

Further, the brush motor (5) in the floor suction device (3)
) is composed of a DC motor, and the floor suction device (3) is supplied with A supplied by the pair of electric filters (13) (13).
ClooV [The source is converted to DC and voltage is stepped down to be applied to the brush motor (5).

Next, FIG. 7 is a circuit block diagram of the present invention. As shown in the figure, in the hand control section (15), (25) is the display section, and (19) is the operation button group <24). An operation switch section to be operated, (20) the microcomputer element, <30) the first power transformer (16)
a first power supply circuit including a constant voltage section and a microcomputer reset section (31), (32) a brush motor control circuit, and (33) a brush motor consisting of an on/off control circuit using a bidirectional thyristor. In the drive circuit,
On/off control is performed on the power supply of the AC 100Vt source to the brush motor (5). Further, (34) compares the detection value detected by the current detection element (26) with a predetermined reference value, and when the detection value exceeds the reference value continuously for a predetermined time, the microcomputer element (20) The brush motor drive circuit (33) sends a signal to the brush motor (5).
This is an overcurrent detection circuit designed to turn off the power supply to the

Next, in the blower control circuit board (28), (35
〉 is an electric blower drive circuit, and (36) is an electric blower drive circuit consisting of a phase control circuit using a trigger element such as a bidirectional Cyrisk, and the microcomputer element (
The control circuit (20) is controlled by the control signal output from the control circuit (
Set the phase in 35), allow changes, and use electric fan @ (2)
On/off and 4 levels of buff-control Kurugitan (strong)
, Yuka / Tatami (medium), Sofa (weak), Curtain (weakest)〉, and (37) is this control circuit board (
28) for supplying power to the second source transformer (
29).

Furthermore, (38) is a direct current/downstream 8E circuit mounted on a brush motor printed circuit board (39) housed in the floor suction tool (3).

In addition, (40) is a thermostat for preventing overheating as a temperature sensor placed near the electric blower (2), which turns off all power when there is overheating due to overload of the electric blower (2). Even if the thermostat <4o) cools down and turns on after that, the first
The reset section (31) of the power supply circuit (16) operates to return the microcomputer element (2o) to its initial state, preventing the electric blower (2) and brush motor (5) from operating automatically.

Next, control of the electric blower (2) will be explained according to the circuit diagram of the main part shown in FIG. 8 and the flowchart of the main part shown in FIG. 9.

In FIG. 8, the microcomputer element (20
) (7) First to fourth output terminals (P C1) to (P C
4) and (7) each has the display light emitting diode (18a
) to (18d) are connected to each other. Each of the light emitting diodes (18a) to (18d) includes a light emitting diode (42) for controlling the optical coupling elements (41a) to (416), respectively.
a) - (42d) are connected in parallel, and the output parts (43b) - (43
d) has resistors (R21) to (R23) with different resistance values.
are connected. Then, the first optical coupling element (41a
) by not connecting a resistor to the output part (43a), the resistance value is set to 0, and the resistance value is R2>R22>R
The structure is such that the resistance value increases sequentially corresponding to the strong, medium, weak, and weakest display light emitting diodes (18a) to (lad), and this resistance value is set by the two steel IRs. (11) The signal is sent to the motor control circuit (35) by (11).

When the output selector switch (19a) is pressed, the first output terminal (PCI) of the microcomputer element (20) is pressed.
) has gone from H level to L level, and is over 1.

The display light emitting diode (18a) lights up and the first photocoupler (41a) is driven to connect the capacitor (C1) in the phase control circuit of the bidirectional thyristor (TRAI).
Charging takes place through a resistor (R3).

The charging voltage of the capacitor (C+) is
), PUT (Pi) becomes conductive and pulse transformer (PTRI) and diode (D+
) generates a trigger signal to activate the bidirectional thyristor (TRA
I) is made conductive. On the other hand, at the same time as PUT (Pi) becomes conductive, the capacitor (C+) is discharged, and the resistance (R
3), and this charging/discharging state continues until the first output terminal (PCI) becomes the H state again. When the output selector switch (19a) is suppressed again, the first output terminal 1
F (PcI) becomes H state, the second output terminal (PO2) becomes L state, and the light emitting diode (18b
) lights up, the second optical coupling element (41b>) is driven, and the charge to the capacitor (C+) is transferred to the resistor (RO).
and (R21), so the capacitor (C
1) Charging time becomes slower. Therefore, since the trigger signal of the bidirectional thyristor (TRA1) is also delayed within the half-wave cycle of the AC power supply, the amount of power flowing to the electric blower (2) decreases.
Output decreases. And the resistance value is R23>R22
> R21, each time the output selector switch (19a) is pressed, the charging time to the capacitor (C+) becomes slower, so the electric blower at! The amount of current applied to (, 2) decreases, and the output decreases in stages from <strong, medium, weak, to the weakest>.

Also, when you press the stop switch (19b), all output terminals (
PCI) to (PO2) are in the H state, the light emitting diodes (18a) to (18d) are turned off, and the electric blower (2) is turned off.
stops. The microcomputer element (20) determines whether or not the brush switch <190) has been suppressed only when the electric blower @(2) is turned on and rotating due to the suppression operation of the output changeover switch (19a). , the brush motor drive circuit (33) is controlled on and off via the brush motor control circuit (32) every time the brush switch (19c) is pressed, thereby turning on and off the power supply to the brush motor (5).

Furthermore, when the stop switch (19b) is pressed, the brush motor (
2), and also turns off the display light emitting diode (18e), so that the stop switch (19b) has priority over the output selector switch (19a) and the brush switch <19c), and turns off the electric blower (2) and the brush. This turns off the motor (5).

When the user plugs the power into the outlet, the microcomputer element (20) makes initial settings and performs a full stop process using the reset section (31), after which the user presses the output selector switch (<19g) button (24a). Electric blower 1! (2') is turned on with its output controlled to a strong stage, and thereafter, each time the switching switch (19a) is pressed, the output of the electric blower @(2) changes from strong stage → middle stage → weak stage → weakest stage -> strong stage... and so on, and the corresponding display light emitting diodes (18a) to (18d) light up. In this state, the brush switch (19c) button (
24c), the brush motor (5)
The rotation and stopping of the display light emitting diode (18
e) is turned on and off. Therefore, the user can clean carpeted floors, folded floors, wooden floors, etc. with the optimal dust suction power depending on the condition of the cleaning surface. When necessary, you can stop the rotating brush and clean the floor without damaging it. Also, the stop switch (19b
) Pressing the button (24b) stops the electric blower (2) and the brush motor (5). Furthermore, if the electric blower (2) overheats due to overload, the oil thermostat (40) is turned off. And then the mostat (
40) cools down and turns on, the reset section (31)
As a result, the microcomputer element (20) returns to its initial state and complete stop processing is performed, so that the electric blower (2>) and the brush motor (5) do not operate automatically.

(G) Effects of the Invention According to the present invention, the output of the electric blower is switched stepwise and cyclically each time the output changeover switch is suppressed, and the output of the electric blower is switched in a stepwise and cyclical manner every time the brush switch is pressed while the electric blower is in the ON state. When the brush motor is activated, it turns off. Therefore, the rotating brush can only rotate and stop while the electric blower is on, so for carpet floors, the rotating brush can be rotated to efficiently scrape up dust, and for tatami floors or wooden floors, the rotating brush can be stopped. The electric blower and brush motor are turned off at the same time by pressing the stop switch, and can be completely stopped with a simple touch. In addition, these operations can be performed from the handheld control unit, so the user can remotely control the electric blower and electric floor suction device while cleaning, making it possible to obtain an easy-to-use vacuum cleaner. can.

[Brief explanation of the drawing]

The drawings relate to the vacuum cleaner of the present invention; Fig. 1 is a top view of the connecting pipe, Fig. 2 is an overall view, Fig. 3 is a layout of electrical components, Fig. 4 is a sectional view of the connecting pipe, and Fig. 5 is a top view of the connecting pipe. A perspective view of the second control printed circuit board, FIG. 6 is a partially cutaway top view of the electric floor suction device, FIG. 7 is an electric circuit block diagram, and FIG. 8 is an electric blower main part including the control section. The circuit diagram and FIG. 9 are flowcharts of the main parts. (1)...Vacuum cleaner body, (2)...Electric blower, (
3)...Electric floor suction device, (5)...Brush motor, (9)...Connection pipe, (15)...Hand control unit, (19a)...Output selector switch, <19b)・
...Stop switch, <19c)...Brush switch.

Claims (2)

[Claims] (1) Connect an electric floor suction device to the connecting pipe attached to the tip of a flexible hose connected to the vacuum cleaner body, and drive the electric blower inside the vacuum cleaner body and the rotating brush inside the floor suction device. A brush motor for remote control is remotely controlled by a hand control unit of the connecting pipe, and the hand control unit includes an output changeover switch that turns on the electric blower and switches the output, and an output changeover switch that turns on the electric blower and switches the output. A vacuum cleaner comprising: a brush switch that turns on and off a brush motor; and a stop switch that turns off the electric blower and the brush motor with priority over the output changeover switch and the brush switch. (2) The electric blower according to claim 1, wherein the output changeover switch sequentially and cyclically switches the electric blower to four stages: strong, medium, weak, and the weakest, each time the output changeover switch is pressed. Vacuum cleaner.