JPS63200730A - 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] [Object of the Invention] (Industrial Field of Application) The present invention relates to electricity and vacuum cleaners, and uses the output of an electric blower for dust suction built into the vacuum cleaner body. The present invention relates to a control device that allows switching operations to be performed using a hand-held operating section of a hose connected to the hose.

(Prior Art) A conventional hand-operated operating section of a vacuum cleaner has a configuration shown in FIG. 10. This conventional vacuum cleaner has a hand operating part 2 on the hose 1, and this hand operating part 2 is provided at a connection 916 between the cover pipe 4 and the grip pipe 5 connected to the hose main body 3, For example, a cursor 8 that follows a sliding variable resistor is provided on a display board 7 in which the conditions of the surface to be cleaned are specified, and the display board 7 is fixed with a cover unit 9.

The control circuit provided in the manual operation section 2 is as follows:
It is connected to a control circuit within the vacuum cleaner body via a piano wire within the hose body 3.

Next, the control path inside the vacuum cleaner body will be explained using FIG. 9.

A snubber circuit 13 as a protection circuit consisting of a resistor and a capacitor is connected to the commercial AC power supply 11 via a fuse 12.
A triac 14 and an electric blower 15 are connected in series, and the electric blower 15 has a noise prevention circuit 16 made of a capacitor.

The commercial AC power supply 11 is connected to the primary winding of a step-down transformer 20, and the secondary winding of this transformer 20 is connected to a rectifier circuit 21 made of a diode brilage, and the output of this rectifier circuit 21 is A constant voltage circuit including a resistor 22 and a Zener diode 23 is connected to the side. A resistor 24 connected in series in parallel with this Zener diode 23
and a resistor 25 are connected, and the gate of a programmable unijunction transistor (PUT) 26 is connected to the connection point between the resistor 24 and the resistor 25.
The cathode of T2B is connected to one end of the primary winding of the transformer @27. A charging capacitor 28 is connected between the anode of the PUT 26 and the other end of the primary winding of the transformer 27. Further, a resistor 29 and a diode 30 are connected to the secondary winding of the transformer 27, and a triac 14 is connected to the secondary winding.
connected to the gate.

A resistor 31 is connected to the anode of the PUT 26, and the connection point between the resistor 22 and the resistor 24 and the resistor 31 are connected to the hand ti of the hose through the piano wire in the hose.
It is connected to the IIts section 33. This hand control section 33
has a sliding variable resistor 34, a resistor 35 connected in parallel with the sliding variable resistor 34, and an on/off switch 36 connected in series with the sliding resistor 34.

Next, the operation of the circuit of this conventional vacuum cleaner will be explained. First, turn on the on/off switch 36 and adjust the sliding variable resistor 34 to the resistance value corresponding to the output of the electric blower 1115. If this resistance value is increased, the charging time of the capacitor 28 becomes longer, so the PLJT 26, which turns on when the anode potential exceeds the gate voltage set by the resistor 24 and the resistor 25, has a delay in turning on. The phase control angle of the trigger of the triac 14 increases, the power supplied to the electric blower 'ei 115 decreases, and the output of the electric blower 15 decreases. On the other hand, if the resistance value of the sliding variable resistor 34 is decreased, the capacitor 28
Since the charging time becomes shorter, the trigger phase control angle of the triac 14 becomes smaller and the output of the electric blower 15 increases.

In this way, the configuration is such that the output of the electric blower 15 is controlled by changing the resistance value of the continuous sliding variable resistor 34.

(Problem that the invention attempts to solve) However, in the conventional vacuum cleaner, the hand control unit 33
Although the output of the electric blower 15 can be displayed on the hand control unit 2 because the connection between the main body and the vacuum cleaner body is made through a transmission path provided in the hose, abnormalities such as a clogged filter or an abnormality in the installation of the filter may occur. The dust indicator on the vacuum cleaner itself was showing an abnormality. For this reason, there have been problems in that it is difficult to express abnormalities, the display is difficult to see, and it is difficult to confirm.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vacuum cleaner that can display the output of an electric blower and abnormalities of a filter, etc. on a hand-held operation unit, and can easily confirm the occurrence of an abnormality. And so.

[Structure of the invention]

(Means for Solving the Problems) The vacuum cleaner of the present invention includes a built-in dust collecting section and an electric blower, and a power v control section that controls the output of the electric blower.
An air path detection section that detects the flow rate or pressure in the air path, a filter detection section that is provided in the dust collection section and detects the installation state of the filter, and output signals from these air path detection section and filter detection section are sent out. a vacuum cleaner main body having a signal transmitting section; a hose having a hand control section detachably connected to the vacuum cleaner main body and connected to the power control section; ! an operating switch that varies the output of the electric blower; a display unit that includes a plurality of indicators that displays the operating position of the operating switch and the output from the signal sending unit; and a blinking circuit that blinks the indicator of the display unit. wherein the display section lights up a display corresponding to the operating position of the operated operation switch, and causes at least one display of the display section to blink when the signal is output from the signal transmission section. A-ru.

(Function) In the present invention, first, an electric blower is driven with a desired output using an operation switch, and the electric blower is driven at a desired output. The electric blower is displayed on the display of the 11W circuit. In addition, the air path detection section detects the flow rate or pressure in the air path, the filter detection section detects the installation status of the filter, and when the air path detection section or filter detection section determines that there is an abnormality, the signal sending section Sends an abnormal signal to the 1lliI section at hand.

When the abnormality signal is output from the signal sending section, at least one of the indicators of the display section of the handheld control section blinks to indicate the abnormality.

(Example) Hereinafter, one example of the vacuum cleaner of the present invention will be described with reference to the drawings.

In Fig. 3, 41 is the vacuum cleaner main body, and the electric air blower shown in Fig. 2! I42 and power control unit 43 are built-in,
A dust collection case 44 forming a dust collection section in which a dust collection filter is removably mounted is removably attached to the h1 portion of the vacuum cleaner main body 41. The front part of this dust collection case 44 has a power supply 1ltII1 for the vacuum cleaner main body 41 inside.
A suction port 4 to which a suction hose 47 provided with a transmission path consisting of a reinforcing piano 11211 connecting the part 43 and the hand control part 46 of the hand operation part 45 is removably inserted.
8 is opened, and a blade receiver 49 is provided adjacent to this suction port 48.

A connecting tube portion 51 is provided at the base end of the hose body 50 of the hose 47 and is connected to the front two suction ports 48 by insertion, and this connecting tube portion 51 is electrically connected to the blade receiver 49. A plug-in bin 52 is provided. The hose body 50
A grip tube 54 is provided at the tip of the extension tube 53 to which the extension tube 53 is inserted and connected in a detachable manner, and a suction port body 55 is detachably attached to the tip of the extension tube 53.

Further, as shown in FIGS. 4 and 5, the hand operation section 45 includes a hand control section 46 provided in the hand operation section 45, a cover tube 60 connected to the hose body 50, and a grip tube 54.
A connecting pipe 61 is provided between the connecting pipe 61 and
A display board 62 is attached to the. This display board 62 displays a display indicating the output or "off" state of the electric blower 42. For example, near the display of "carpet" there is a carpet operation button 66 for operating a normally open contact (for example, trade name TACT Switch) 65 with one circuit and one contact as an operation switch for varying the output of the electric blower 142. A display 61 made of, for example, a light emitting diode is provided to display the operation position of the operation button 66.

Furthermore, in the vicinity of the "floor/tatami" display, there is also an operation button 69 for the normally open contact 68 for floor/tatami and a display 7.
0. The operating button 72 of the normally open contact 71 for the sofa and the display 73 are located near the display of "sofa", and the operating button 75 of the normally open contact 74 for the curtain and the display are located near the display of "curtain". 76, an operation button 18 for turning off the normally open contact 17 is provided near the "off" display. The display unit 79 is composed of the display units 61°7G and 73.76. In addition, the "off" operation button 7
No indicator corresponding to 8 is provided.

As shown in FIG. 2, the circuit within the vacuum cleaner main body 41 includes an electric blower 42 connected to a commercial power supply 81 via a power control section 43. This electric blower 4
2 includes a capacitor 82, 83, 84 connected in a delta between the electric blower 42 and the commercial AC power supply 81.
A sound prevention circuit 85 is provided. The power control section 4
3 is connected to a hand-held power supply section 86, and this hand-held power supply section 8
A current detection section 87 that detects the current from the hand control section 46 is connected to the hand control section 6 , and terminals A and B are drawn out from the hand power supply section 86 and the current detection section 87 and connected to the blade holder 49 .

Further, the current detection section 87 is connected to a comparator 88, and this comparator 88 is connected to an input setting device 89 that sets a setting (Ci number) corresponding to an input.

Reference numeral 90 denotes an air path sensor as an air path detection section that detects the flow 1 or pressure of the wind in the air path.
It is connected to a sensor reference setting device 92 which is connected to and sets a reference output corresponding to the conditions of the surface to be cleaned, and to a sensor comparator 93 which compares the reference output and the output from the air path sensor 90 . This sensor comparator 93 is connected to the input setting device 89.
In addition, the output from the input setting device 89 is sent to the sensor comparator 93.
The phase control circuit 9
5 to the gate of a triac 96 as a power control element connected between the commercial AC power supply 81 and the electric blower 42. Further, the current detection i87 is also connected to the phase control circuit 95.

Reference numeral 91 denotes a filter condition sensor, which is provided in the collection section of the vacuum cleaner body 41 and serves as a filter detection section for detecting, for example, the attachment state of a filter.This filter condition sensor 97 is connected to the abnormality comparison circuit 98 together with the sensor amplification section 91. The abnormal signal generator 99 is connected to an abnormal signal transmitter 100 as a signal transmitter that transmits an alternating current signal of several Hz to several hundred H2. This abnormal signal transmitter 1
00 is connected to terminals A and B connected to the blade receiver 49.

Next, the circuit of the manual control section 46 provided in the manual operation section 45 will be explained using FIG.

Diode 10 from the terminal connected to plug pin 52
1 through a pull-up resistor 102.1. 103°104,
105. 106 are connected in parallel.

These pull-up resistors 102. 103°10
4, 105. 106 includes the operation buttons 66, 6.
Normally open contact 65. operated by 9°72, 75.78.
68.71° 74 and 77 are connected, respectively, and the other end is connected to the terminal mill. The connection point between the normally open contact 65 and the pull-up resistor 102 for the carpet, the connection point between the normally open contact 68 and the pull-up resistor 103 for the tatami/floor, and the normally open contact 71 and the pull-up resistor 104 for the sofa. A switch memory circuit 107 is connected to the connection point, the connection point between the normally open contact 74 for curtains and the pull-up resistor 105, and the connection point between the normally open contact 77 for cutting and the pull-up resistor 106,
Further, a capacitor 108 for initialization is connected to the normally open contact 77 for cutting.

The switch memory circuit 107 resets the latch state of the previously operated normally open contact and stores the operation of the subsequently operated normally open contact with priority.
．． It is connected to a display drive circuit 109 for 76.

The display drive circuit 109 also has a terminal A.

An abnormal signal detection circuit 110 that detects the alternating current signal sent from the abnormal signal transmitter 100 is connected from B, and this abnormal signal detection circuit 110 is connected to the display drive circuit 109 via a blinking circuit 111. .

This display drive circuit 109 has a light emitting diode 67 as a carpet display connected in series from the diode 101, a resistance 112 for adjusting the brightness of this light emitting diode 67, and a load resistance 113 connected in parallel. A light emitting diode 70 is connected as an indicator for the floor/tatami, and a resistance 114 for adjusting the brightness of the light emitting diode 70 and a load resistor 115 are connected in parallel, and as an indicator for the sofa connected in series. A light emitting diode 73, a resistance 116 for adjusting the brightness of the light emitting diode 73, and a load resistance 117 are connected in parallel, and the light emitting diode 76 is connected in series as an indicator for a curtain.
and a resistor 11 for adjusting the brightness of this light emitting diode 76
8 and a load resistor 119 are connected in parallel and connected to the display drive circuit 109, respectively.

A protection circuit 120 is provided between the terminals A and B to protect against abnormally high voltage when the connection between the hand control section 46 and the power control section 43 is opened, for example.

Next, the operation of the above embodiment will be explained.

First, insert the insertion bottle 52 of the hose 47 into the vacuum cleaner main body 4.
It connects to the blade holder 49 of 1 and controls the power control w of the vacuum cleaner main body 41.
The J section 43 is connected to the commercial AC power supply 81.

At this time, the normally open contact has not yet been operated, so
The voltage of the pull-up resistor 106 in the "off" state is stored in the switch storage circuit 107, and the phase control circuit 95 does not trigger the triac 96 and the electric blower 42 is not driven.

Next, from this state, if the condition of the surface to be cleaned is a curtain state where the output of the electric blower 42 is weak, the operating button 7 for the curtain is pressed so as to close the normally open contact 14 for the curtain.
Press 5. As a result, the voltage of the pull-up resistor 105 is read into the switch memory circuit 107, the previously operated "off" state is reset, the state of the curtain is memorized, and the display drive circuit 109 outputs the curtain display 16. At the same time, the current of the hand control unit 46 is set using the load resistor 119 for the curtain.

The current of this hand control unit 46 is detected by a current detection unit 87,
The comparator 88 determines which operation button of the hand-held operation unit 45 has been operated, and detects that it is the operation button 75 for the curtain. Then, the input setting device 89 outputs a setting signal corresponding to the input of the curtain operation button 15.

At this time, the air path sensor 90 detects the flow rate or pressure of air, etc. in the air path of the vacuum cleaner main body 41, and the sensor amplification unit 91
After being amplified by this output and the comparator 88 from the sensor reference setting device 92, the curtain operation button 7 is determined by the comparator 88.
The sensor comparator 93 compares the reference output corresponding to 5 with the reference output corresponding to
The difference from the reference value when the curtain operation button 75 is operated is determined and output. An adder/subtractor circuit 94 adds or subtracts the output of this difference to the input setting value set by the input setting device 89 to correct clogging of the filter. Based on this corrected setting value, the phase Il1wJ circuit 95 controls the triac 96 with an output corresponding to the curtain, that is, with a large phase angle, and drives the electric blower 42 with a low output.

On the other hand, when setting a carpet that requires a large output, press the carpet operation button 66 to operate the carpet normally open contact 65, the carpet indicator 67 lights up, and the phase control circuit 95 triggers the triac 96 with a small phase angle, thus providing a large amount of power to the electric blower 142 and increasing the output of the electric blower 42.

Also, when setting it to the floor, tatami, or sofa, operate in the same way.

For example, when the air volume in the air passage decreases or the wind pressure decreases due to extreme clogging of the filter, etc., the air passage sensor 90 detects it. is detected by the filter status sensor 97, and the abnormality comparison circuit 98 determines whether or not it is abnormal. When it is determined that it is abnormal, the abnormal signal generator 99 generates an abnormal signal, and the abnormal signal transmitter 100 transmits the abnormal signal to the hand control unit. 46. Then, the abnormal signal detection circuit 1 of the hand control section 46
An abnormal signal was detected at 10. In this case, the display drive circuit 109 outputs a detection signal including the blinking signal of the blinking circuit 111.
It indicates the position of the operation button and flashes the lit display to notify you of an abnormality.

In addition, when the power supply is removed, or when the insertion bottle 52 of the hose 47 comes off the blade holder 49 of the vacuum cleaner main body 41, etc., the handy tm section 8 of the power control section 43
When the N current from 6 no longer flows to the hand control unit 46, the memory in the switch memory circuit 107 is reset by the initializing capacitor 108. As a result, the current in the hand control unit 46 becomes a current in the off state, and after determining the off state by the comparator 8B, the phase control circuit 95 stops the electric blower 42 without triggering the triac 96.

Further, FIG. 6 is a circuit diagram of the hand control section 46 of another embodiment. This circuit includes a non-display identification circuit 121 and a display switching circuit 122 for switching input between the switch memory circuit 107 and the display drive circuit 109 of the circuit shown in FIG.
The display switching circuit 122 is connected to the output end of the blinking circuit 111.

Then, the abnormal signal transmitter 10 is connected to the abnormal signal detection circuit 11G.
When an output from 0 is detected, the blinking circuit 111 adds a blinking signal to the abnormal signal and outputs it to the display switching circuit 122.

At this time, the non-display identification circuit 121 identifies the circuit whose operation button is not operated, switches the display switching circuit 122, and outputs a blinking output from the display drive circuit 109, causing the display to blink.

For example, when the floor/tatami operation button 71 is operated,
When the floor/tatami indicator 1G is lit, the floor/tatami
The Tatami display 70 remains lit, and the other displays 67, 73, and 76 blink.

According to the above embodiment, since the display other than the display indicating the output of the electric blower 1142 is blinked, it is easy to confirm the abnormal display.

In addition, it can be used for a wide range of purposes because it can be used to express a wide variety of contents on the display. For example, when four indicators are used as described above, one can be used to display the output of the electric blower 1142, the other can be used to detect an abnormal state, and the other can be used to display the suction force state.

Still another embodiment will be described with reference to FIGS. 7 and 8.

The display section 79 of the hand-operated operation section 45 shown in FIG.
．． It is larger than 73.76.

The hand control m circuit 46 shown in FIG. 7 is the circuit shown in FIG. M1, and the blinking circuit 111 is connected to the switch memory circuit 107 and a terminal for displaying the maximum input.

Then, the abnormality signal detection circuit 110 detects the abnormality
When an output from 0 is detected, the blinking circuit 111 adds a blinking signal to the abnormal signal and outputs it to the display drive circuit 122. Then, the carpet display 67 that displays the maximum output value is turned on. For example, when the output of the electric blower 42 corresponds to the tour and the sofa display 73 is lit, the sofa display 73 remains lit, and the carpet display 67 is also lit. When the carpet indicator 67 is lit, it changes to blinking.

According to the above embodiment, the display unit serves both as an indicator indicating the operation position of the operation button and an indicator indicating an abnormality, and the indicator indicating the abnormality is disposed on the display unit located at the end and indicating the maximum output. Therefore, abnormalities can be easily confirmed.Furthermore, by making this display large, abnormalities can be easily confirmed.

Further, even when the carpet indicator 67 is lit, the lighting changes to blinking, so abnormalities can be easily confirmed.

In addition, the display that displays abnormalities is not limited to the carpet display 61 that displays the maximum output of the electric feeder J11142.
It may also be a sofa display 76 that displays the lowest input at the opposite end. Even with this configuration, the abnormality display is located at the end of the display section and can be easily confirmed.

Furthermore, although the display 58G indicating the "off" state is not provided in any of the above embodiments, a display indicating the "off" state may be provided. If a power off indicator is provided, the display will light up when the power is off, allowing you to confirm that the power is on.

Further, the setting of the strength of the output of the electric blower 42 is not limited to five levels including "off" (it may be set to other than five levels).

According to the above embodiment, the operation button 66, 69.72°7
Since 5 and 78 are provided according to the conditions of the surface to be cleaned and the number of cuts, the output of the electric blower 42 can be directly adjusted to the desired conditions of the surface to be cleaned.

Furthermore, a two-wire transmission method can be implemented by flowing the power supply current and the signal current from the load circuit through the transmission path.

〔Effect of the invention〕

According to the present invention, by displaying an abnormality on a display indicating the operated operation button on the hand control unit, it is possible to easily check the operation position of the operation button, the abnormality in the air path, and the abnormality in the filter condition at hand. In addition to being able to control the output of the electric blower by hand, it is possible to quickly respond to abnormalities.
In addition, the small area at hand can be used effectively, and it is easy to use.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing a hand control section of an embodiment of the vacuum cleaner according to the present invention, and FIG. 2 is a circuit diagram inside the same vacuum cleaner main body.
3 is a perspective view of the main body of the vacuum cleaner, FIG. 4 is a front view of the hand control section, FIG. 5 is a vertical sectional view of the same, and FIG. 6 is a circuit diagram showing the hand control section of another embodiment. FIG. 7 is a circuit diagram showing a hand control section of another embodiment, FIG. 8 is a front view of the same hand control section, FIG. 9 is a circuit diagram of a conventional example, and FIG. 10 is a hand control section of a conventional example. FIG. 41. Vacuum cleaner body, 42. Electric blower, 43.
- Power control unit, 46... Hand control unit, 47... Hose,
65.68.71.74.77... Normally open contact as operation switch, 67, 70.73.76. Light emitting diode as φ indicator, 79... Display section, 90... As air path detection section Air path sensor, 97... Filter status sensor as a filter detection section, 10G... Abnormal signal transmitter as a signal sending section, 111... Flashing circuit.

Claims (3)

[Claims] (1) A power control unit that incorporates a dust collection unit and an electric blower, and that controls the output of the electric blower, an air path detection unit that detects the flow rate or pressure in the air path, and a filter that is installed in the dust collection unit. A vacuum cleaner main body having a filter detection section that detects the mounting state of the vacuum cleaner, and a signal sending section that sends output signals from the air path detection section and the filter detection section; a hose having a hand control unit connected to the power control unit, the hand control unit including an operation switch that varies the output of the electric blower, and an operation position of the operation switch and an output from the signal sending unit. The display unit includes a display unit consisting of a plurality of indicators that display , and a blinking circuit that blinks the indicators of the display unit, and the display unit lights up the indicator that corresponds to the operating position of the operating switch that is operated. . A vacuum cleaner, characterized in that when the signal is output from the signal sending section, at least one indicator of the display section blinks. (2) The display unit blinks all the indicators other than the indicator corresponding to the operating position of the operating switch operated by the output from the signal sending unit. Vacuum cleaner. (3) The vacuum cleaner according to claim 1, wherein the display unit blinks a display at an end that displays a maximum output or a minimum output based on the output from the signal sending unit.