JPH0824651B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to an electric device for controlling the output of an electric blower in a vacuum cleaner body and on / off of the electric motor in a suction port body by a hand-operated operation unit. Regarding the vacuum cleaner.

(Prior Art) As a conventional electric vacuum cleaner for controlling the electric motor in the suction port with this type of hand operation unit, for example, FIGS.
The configuration shown in the figure is known.

In FIG. 14, 1 is an AC power supply, and this AC power supply 1
Is connected to the electric blower 3 via the control unit 2.
The AC power source 1 also has a transformer 4 for stepping down,
It is connected to a rectifying means 5 for rectifying an alternating current into a pulsating flow, and this rectifying means 5 is connected to a hand opening / closing means 6 for turning on / off a power source. This hand opening / closing means 6 is a constant voltage means 7 for making a pulsating current a constant voltage. It is connected to the. The constant voltage means 7 is connected to a hand control means 11 via a resistor 8 and to a current detection means 12, and the current detection means 12 is further connected via a comparison circuit 13 for detecting ON or OFF. It is connected to the hand opening / closing means 6.

The constant voltage means 7 is a manual setting means 14 for manually setting the output of the electric blower 3, a flow rate detecting means 15 for detecting the flow rate of wind in the air passage, and an electrical output of the flow rate detecting means 15. Detecting means 17 consisting of converting means 16 for converting into
It is connected to the. The detecting means 17 via the amplifying means 18 is connected to the manual setting means 14 and a manual switching means 19 for switching between manual and automatic according to the output of the hand control means 11, and the manual switching means 19 is connected to the transformer 4 Trigger means 22 together with zero-cross detection means 21 connected to the secondary winding of
Is connected to the electric power control means 24 connected between the AC power supply 1 and the electric blower 3 via the insulating means 23.

FIG. 15 shows the hand permission control means 11 connected to the circuit of the electric vacuum cleaner body shown in FIG. 14, and the terminals A and B of the hand permission control means 11 are
Each of them is connected to terminals A and B of the current detection means 12 of the vacuum cleaner body. Further, a protection means 31 for protecting the hand control means 11 from a surge or the like is provided between the terminals A and B of the hand control means 11.
Is connected.

Reference numeral 32 is an opening / closing means, and each of the opening / closing means 32 is composed of a strong opening / closing means 33, an automatic opening / closing means 34, a weak opening / closing means 35, and a cutting opening / closing means 36, which are operation switches. , 35, 36 are respectively connected to the heavy load means 38, the automatic load means 39, the weak load means 40 and the off load means 41 of the load means 37 for setting the load resistance value. The load means 38, 39, 40, 41 are connected to the terminal A, respectively, and the load means 38, 39, 40, 4 are connected.
The amplifying means 42 for amplifying the output of the load resistance value of 1 is connected to the strong amplifying means 43, the automatic amplifying means 44, the weak amplifying means 45, and the off amplifying means 46, respectively, and the off amplifying means 46.
A reset means 47 for resetting the power to off when the power is disconnected is connected to the. Then, each amplification means 43,44,45,46,
Storage means 5 for storing operation contents of each opening / closing means 33, 34, 35, 36
0 storage means 51 for strong storage means, automatic storage means 5
2. The weak storage means 53 and the cutting storage means 54 are connected to mutual reset means 55 for mutually setting and resetting the stored contents, and the mutual reset means 55 are the respective storage means.
It is connected to 51,52,53,54. In addition, each of the storage means 51, 52, 53, 54 is stored in
Power backup means 56 for protecting the stored contents of 52, 53, 54
Is connected.

Then, each of the storage means 51, 52, 53 has a display means 57 for displaying the operated contents, and an overuse display means 58 and an automatic display means 59.
And a current varying means 61 that is connected to the weak display means 60 and sets a current value to the control unit 2 of the vacuum cleaner body.
Connected to the strong current varying means 62, the automatic current varying means 63, and the weak current varying means 64, respectively, and the permission control means 11
Is connected to the terminal B.

Further, an opening / closing means 66 is connected to terminals C and D of the control unit 2 of the vacuum cleaner main body and turns on and off the electric motor 65 of the suction port connected between the terminals E and F.

 Next, the operation of the above conventional example will be described.

The voltage from the AC power supply 1 is stepped down by the transformer 4 and rectified by the rectifying means 5. In the hand opening / closing means 6, a comparison circuit 13 for judging the state of the hand moving control means 11 detected by the current detecting means 12.
Power is turned on and off by the output of. Then, the pulsating flow is made into a constant voltage by the constant voltage means 25, and a constant voltage is supplied to each means.

Further, when the automatic opening / closing means 34 of the hand control means 11 is operated, the automatic storage means 52 stores automatic, the automatic display means 58 displays and the automatic current changing means 63 sets the current and the electric It is detected by the current detection means 12 of the cleaner body. Then, in the case of automatic, the flow rate detecting means 15 detects the flow rate in the air passage, the converting means 16 converts it into an electrical output, and the amplifying means 18 amplifies it so that the wind has a constant pressure or flow rate. , Trigger by the trigger means 22. At this time, the zero-cross detector 21 detects zero volt. Then, the output of the electric blower 3 is controlled by insulating the insulating means 23 and giving a trigger output to the electric power control means 24 to control the electric power of the AC power supply 1 to control the input of the electric blower 3.

When the opening / closing means 33 for weak use or the opening / closing means for weak use 35 is operated by the hand operation means 11, the corresponding strong use display means 58 or weak use display means 60 is turned on and the manual setting means 14 is used. Each of the outputs is set to a corresponding output, and the trigger means 22 is driven to drive the electric blower 3.

Also, when controlling the electric motor 65 of the suction port body, the opening / closing means
Operate 66.

However, the opening / closing means 32 for operating the electric blower 3 of the hand control means 11 and the opening / closing means 66 for operating the electric motor of the suction port body are independent and independent even when the electric blower 3 is turned off. The electric motor of the suction port body continues to rotate, and further the motor opening / closing means 66 of the electric motor 65 of the suction port body must be turned off, which complicates the operation.

Further, when the power plug is removed, the opening / closing means 32 of the electric blower 3 is reset to OFF, but the switch of the electric motor 65 of the suction port body is kept in the same state. Only the electric motor 65 is driven, which is dangerous.

Further, as an electric vacuum cleaner in which the electric motor 65 is turned off when the electric blower 3 is turned off, it is not known, for example, Japanese Patent Application No. 61-
The one described in 101726 has been proposed.

As shown in FIG. 16, the electric vacuum cleaner described in this Japanese Patent Application No. 61-101726 has a motor opening / closing means 66 and an insulation transmission means in the transmission path of the hand control means 11 shown in FIG. 15 to the electric vacuum cleaner body. The means 67 are connected in parallel, and this insulation transmission means 67 is
It is connected to the electric section control means 68 provided in the power path to the power source 65 by, for example, a photo coupling.

This is to drive the electric motor 65 of the suction port body only when the electric blower 3 is driven and any current is applied to the transmission path. That is, the electric blower 3 is set to strong, automatic or weak, and the electric motor 65 is driven only when current is flowing in the transmission line.

(Problems to be Solved by the Invention) However, in the structure described in Japanese Patent Application No. 61-101726, the opening / closing means for controlling the electric blower 3 and the electric motor opening / closing means 66 for controlling the electric motor 65 of the suction port body are interlocked. Operation becomes complicated.

The invention described in claim 1 is made in view of the above problems, and an object thereof is to provide an electric vacuum cleaner capable of controlling the electric blower and the electric motor in conjunction with each other.

A second aspect of the present invention is, in addition to the first aspect of the invention, an object of the present invention is to provide an electric vacuum cleaner capable of arbitrarily selecting an operation stage of an electric blower interlocked with an electric motor.

[Structure of Invention]

(Means for Solving the Problem) An electric vacuum cleaner according to claim 1 is provided with an electric vacuum cleaner main body having an electric blower and a control means for controlling an output of the electric blower, and an electric motor connected to a tip portion thereof. A hose unit having a suction control unit and a permission control unit that is connected to the control unit and controls the output of the electric blower and the electric motor, and the control unit includes a permission power supply unit that supplies electric power to the permission control unit. A current detection means for detecting a current of the hand control means, and an output control means for controlling an electric power control means for driving the electric blower according to an output of the current detection means, wherein the hand control means is the electric blower. Fan opening / closing means for selecting the operation step of the electric section, electric motor opening / closing means for selecting the operation step of the electric section, operation steps set by the fan opening / closing means and the electric power Logic processing means for processing mutual interlocking and non-interlocking operation according to the operation stage set by the motive opening / closing means, and a blower opening / closing output from the blower opening / closing means logically processed by the logic processing means , A blower signal load means for generating a signal output corresponding to the blower, a blower storage means for storing the output of the blower signal load means, and a blower mutual reset means for performing a mutual reset when the signal of the blower signal load means is input again. A blower display means for displaying the operation stage of the electric blower by the output of the blower storage means, a current varying means for outputting a current corresponding to the output of the blower storage means to the current detecting means, and the logic processing. A motor signal negative signal generating a signal output corresponding to a motor opening / closing output from the motor opening / closing means which is logic-processed by the means. Means, an electric motor storage means for storing the output of the electric motor signal load means, an electric motor mutual reset means for performing mutual reset when the signal of the electric motor signal load means is input again, and an electric motor of the electric motor according to the output of the storage means. An electric motor display means for displaying an operation stage, an insulation transmission means connected in series with the blower display means for controlling the electric motor section, and an electric motor opening / closing means connected in parallel with the electric motor display means and the insulation transmission means. The electric motor display means and the bypass means for turning off the insulation transmission means, and the electric section control means for driving the electric section by the output of the insulation transmission means are provided.

A vacuum cleaner according to a second aspect of the present invention is the vacuum cleaner according to the first aspect of the present invention, further including selection means for selectively setting interlocking and non-interlocking operations of the logic processing means.

(Operation) The invention according to claim 1 supplies power to the hand permission control means by the hand permission power supply means. In the hand control means, the blower opening / closing means selects the operation stage of the electric blower, and the motor opening / closing means selects the operation stage of the electric section. The logic processing means processes the interlocking and non-interlocking according to the operation stage set by the blower opening / closing means and the operation stage set by the electric motor opening / closing means by the set logic, and the logic-processed blower opening / closing means The blower signal load means generates a signal output corresponding to the blower opening / closing output from the blower, and this signal output is stored in the blower storage means, and when the signal output is re-input, the blower mutual reset means stores the blower storage means in mutual storage. Reset. Further, the operation stage stored in the storage unit is displayed on the blower display unit, and the current varying unit outputs the current corresponding to the operation stage to the current detection unit of the control unit of the electric vacuum cleaner body. The current detection means detects the current from the hand control section, controls the power control means according to the output of the output control means, and drives the electric blower.

Further, a signal output corresponding to the motor opening / closing output from the motor opening / closing means subjected to logic processing is generated in the motor signal load means, this signal output is stored in the motor storage means, and when the signal output is re-input, the motor mutual reset is performed. The means mutually resets the memory of the motor memory means. When the electric motor is stored in the storage means so as to be operated, it is displayed on the electric motor display means and the insulation transmission means controls the electric part control means to operate the electric part. When it is stored in the electrically driven portion storage means so as not to drive the electrically driven portion, the bypass means turns off the current flowing through the electrically driven portion display means and the insulation transmission means, does not drive the electrically driven portion control means, and does not drive the electric motor. It is a thing.

According to a second aspect of the present invention, in the first aspect of the invention, the interlocking or non-interlocking operation of the logic processing means is selectively set by the selecting means.

(Embodiment) An embodiment of the electric vacuum cleaner of the present invention will be described below with reference to the drawings.

In FIG. 7, reference numeral 101 denotes an electric vacuum cleaner main body, which has a front handle 102 at a front portion of the electric vacuum cleaner main body 101, and a cover body 103 which is pivotally attached to a rear upper portion of the electric vacuum cleaner main body so as to be openable and closable. A component storage unit 104 is provided inside the cover body 103, and a vine port 10 is provided.
5 and round brush 106 are stored. An indicator 110 indicating the suction capacity of an electric blower 107 provided in the vacuum cleaner main body 101 is provided in front of the component storage section 104. And behind this indicator 110,
Display light emitting diodes 111, 112, 113, 114 are provided to form a level meter 115. Further, a bumper 116 is provided on the peripheral surface of the vacuum cleaner body 101.

Further, a pair of wheels 117 and a swivel wheel are rotatably provided on the lower side of the electric vacuum cleaner body 101 on the rear side of both side surfaces and the front side of the lower surface thereof, and a handle 118 is turned on the upper side. It is provided so that it can be stored freely. Further, a power cord 119 is provided at the lower rear end of the vacuum cleaner main body 101, and the power cord 119 is wound and stored by pressing a code reel button 120 provided at the upper rear end.

Further, a main body connecting portion 122 of a hose portion 121 is rotatably and detachably attached to the upper surface of the electric vacuum cleaner main body 101. Hose body 123 connected to this body connection part 122
A grip tube 125 to which an extendable extension tube 124 is insertably and removably inserted and connected is provided at the tip of the grip tube 125, and a hand operation unit 126 is provided on the grip tube 125. A connection pipe 129 of a suction port body 128 having a built-in AC brush electric motor 125 as an electric motor therein is detachably attached to the extension pipe 124, and the suction port body 128 is a hanging port 105 or a round brush. It can be used as a selective exchange with the 106.

Then, as shown in FIGS. 8 and 9, a circuit board 131 of the hand control means 130 is provided in the hand operation unit 126,
The hand operation unit 126 includes a connection tube 133 connected between the cover tube 132 connected to the hose body 123 and the grip tube 125.
The display plate 134 is attached to the connection pipe 133. Then, in the vicinity of, for example, "strong" displayed on the display plate 134, it is necessary to operate a normally open contact (for example, a product name tact switch) 141 of one circuit as an operation switch for varying the output of the electric blower 107. An operation button 142 and an indicator 143 configured by, for example, a light emitting diode for displaying the operation position of the operation button 142 are provided. Similarly, in the vicinity of the "automatic" display, the operation button 145 and the indicator 146 of the automatic normally open contact 144, and in the vicinity of the "weak" display, the operation button 1 of the normally open contact 147 for the sofa.
The operation button 151 of the normally open contact 150 for the curtain is arranged near the display 48, the display 149, and the display of "OFF". It should be noted that no display corresponding to the off operation button 151 is provided. Further, on the circuit board 131, an operation button 152 for turning on the motor, which is an electric motor opening / closing means of the electric motor 125 for brushes, and an operation button 153 for turning off the electric section are provided on the operation button 142 for heavy use and the display 143 for heavy use. It is provided in the vicinity. Further, the operation button 152 for turning on the motor and the operation button 153 for turning off the motor are provided with normally-open contacts 154 and 155, respectively, and in the vicinity of the operation button 153 for turning on the motor, a light emitting diode for the electric section as electric section display means. 156 is provided.

Next, a block diagram of a circuit of the electric vacuum cleaner body 101 of the above embodiment will be described with reference to FIG.

In FIG. 3, reference numeral 161 is a commercial AC power supply, and this commercial AC power supply 161 is connected to a control means 162.
Is connected to the electric blower 107 to control the output of the electric blower 107.

This control means 162 is a step-down transformer for the commercial AC power supply 161.
A primary winding 164 of the transformer 163 is connected to a secondary winding 165 of the transformer 163. Rectifying means 166 for rectifying an alternating current into a pulsating flow is connected to the rectifying means 166. The power supply means 167 and the constant voltage means 168 for converting the voltage to the power are connected. For example, the hand power supply means 167 is connected to the terminal A for supplying a current to the hand control means 130. A protection means 170 for protecting the hand control means 130 is connected between the terminals A and B, and a current detection means 171 for detecting a current from the hand control means 130 is connected to the terminal B. Connected to device 172. Further, the hand power supply means 167 is connected to a constant current means 173 that holds a constant current value, and the constant current means 173 detects the pressure or flow rate in the air passage of the vacuum cleaner body 101. And a conversion means 175 for converting the detection value of the wind path detection means 174 into an electric output.
Connected to 76. The detecting means 176 is connected to the central processing unit 172 via the amplifying means 177 for amplifying the output of the detecting means 176. Since the constant voltage means 168 drives the central processing unit 172, the central processing unit 1 is used as it is.
Connected to 72, and central processing unit when power is turned on again
It is connected to the central processing unit 172 through the initialization means 178 for returning the progress of the program of 172 to the initial state.

Further, the secondary winding 165 of the transformer 163 has a commercial AC power supply 16.
Zero cross detection means 179 for detecting the zero volt of 1 and discriminating the frequency of 50 Hz and 60 Hz is connected,
The zero-cross detecting means 179 is connected to the central processing unit 172. The hand power supply means 167 is also connected to the display means 181 for displaying the output of the electric blower 107 or the operating position of the hand control means 130 via the current limiting means 180.
81 is connected to the central processing unit 172. Further, a sounding means 183 for notifying an abnormality such as clogging is connected from the central processing unit 172 via a sounding driving means 182.

Then, the central processing unit 182 is connected to the output control means 186 including the driving means 184 and the insulating means 185, and the output control means 186 is the power control means 187 connected between the commercial AC power supply 161 and the electric blower 107. It is connected to the.

The central processing unit 172 is as shown in FIG.

The zero-cross detection means 179 is via the zero-cross input means 191, the initialization means 178 is via the initialization input means 192, and the current detection means 171 and the amplification means 177 are alternating inputs from the current detection means 171 and the amplification means 177. It is connected to the input switching means 193 for switching to, and is connected to the data carrying means 195 for reading and reading each data through the A / D converting means 194 for digitizing. The display means 181 is connected to the display opening / closing means 196 for turning on / off the display. The data transfer means 195 is connected to a storage means 199 composed of a data storage means 197 and a temporary storage means 198, and this storage means 199 is set for the output of the current detection means 171 and the output of the conversion means 175. The data to be converted and stored in the output corresponding to the force is stored. The data transfer means 195 is connected to the arithmetic processing means 200 for calculating the output from the input switching means 193 and the storage means 199 to the set suction capacity. From the data transfer means 195, the display output means 201 connected to the display opening / closing means 196 and operating the display opening / closing means 196, the sound generation driving means 18
2 is connected to the sound output means 202 which is connected to 2 and operates the sound drive means 182, and the output means 203 which is connected to the drive means 184 of the output control means 202 and operates the drive means 184.

Next, the permission control means 130 will be described with reference to FIG.

In FIG. 1, reference numeral 211 denotes a blower opening / closing means whose one end is grounded. The blower opening / closing means 211 selects an operation stage of the electric blower 107, and a cutting blower opening / closing means for cutting selection.
212, automatic blower opening / closing means 213 for automatic selection, weak blower opening / closing means 214 for weak selection, and strong blower opening / closing means 215 for strong selection. Reference numeral 216 denotes a motor opening / closing means having one end grounded. The motor opening / closing means 216 selects an operation stage of the brush motor 125. And a drive motor opening / closing means 218 for selecting the drive of the drive motor 125. The blower opening / closing means 211 and the electric motor opening / closing means 216 are connected to the logic processing means 219,
The logic processing means 219 processes the interlocking and non-interlocking operations according to the operation stage set by the blower opening / closing means 211 and the operation stage set by the electric motor opening / closing means 216 by the set logic. The processing means 219 is the second
As shown in the figure, while the diode 220 is connected from the cutting motor opening / closing means 216 to the cutting blower opening / closing means 212,
Automatic blower opening / closing means 213 to driving electric motor opening / closing means 218
Is connected to the diode 221.

Also, the logic processing means 219
The blower signal load means 222 for generating a signal output corresponding to the blower open / close output from the blower open / close means 211 which has been subjected to the logic processing by the blower signal load means 222 is connected.
Are the blower signal load means 223 for setting the cutoff of the electric blower 107, the automatic blower signal load means 224 for setting the automatic operation of the electric blower 107, and the weak blower signal load means 225 for setting the weak operation of the electric blower 107. And a strong blower signal load means 226 for setting a strong operation of the electric blower 107.

The blower signal load means 222 includes a blower signal load means 222.
Blower amplification means 227 for amplifying the signal output from the blower amplification means 227 is connected to the blower signal load means 223 for amplifying the output of the blower signal load means 223 for cutting. 228, connected to the automatic blower signal load means 224, this automatic blower signal load means 2
An automatic blower amplifying means 229 for amplifying the output of 24, a weak blower signal amplifying means 230 and a strong blower signal loading means 226 which are connected to the weak blower signal loading means 225 and amplify the output of the weak blower signal loading means 225. And a blower amplifier amplifying means 231 for amplifying the output of the blower signal loading means 226. The blower amplification means 227 is connected to the blower storage means 233 for storing the output of the blower signal load means 222 via the blower mutual reset means 232, and the blower storage means 233 outputs the output of the cutting blower signal load means 223. Blower memory means 234 for storing, blower memory means 235 for automatic storing blower signal loading means 224 for automatic blower, blower memory means 236 for weakening and output for blower signal loading means 225 for weak use The blower signal load means 226 includes an output of the forced blower storage means 237. Then, when any signal of the blower signal load means 222 is re-input to any of the blower storage means 233, the blower mutual reset means 232 performs mutual reset.

The blower output buffer means 238, one end of which is grounded, is connected to the blower storage means 233, and the blower output buffer means 238 is connected to the automatic blower storage means 235, the automatic blower output buffer means 239, and the weak blower storage. Means 236
And a strong blower buffer means 241 connected to the strong blower storage means 237. When the output of the cutting fan storage unit 234 is not used, an output buffer unit corresponding to the cutting storage unit 234 may not be provided as shown in the embodiment.

The blower output buffer means 238 has a blower storage means 233.
Is connected to the current varying means 246 for outputting the current corresponding to the output of the electric current to the current detecting means 171 of the electric vacuum cleaner body 101. The current varying means 246 is an automatic current corresponding to the output of the automatic blower storage means 239. Automatic current variable means 24 for outputting
7. A weak current changing means 248 for outputting a weak current corresponding to the output of the weak blower storage means 240 and a strong current changing means for outputting a strong current corresponding to the output of the strong blower storage means 241. The current varying means 246 is connected to the terminal A.

Also, the logic processing means 219
The motor signal load means 251 for generating a signal output corresponding to the motor open / close output from the motor open / close means 216 subjected to the logic process in FIG.
Is composed of a cutting motor load means 252 for setting the brush motor 125 off and a driving motor load means 253 for setting the drive of the brush motor 125.

The motor signal load means 251 includes the motor signal load means 251.
Motor amplifying means 254 for amplifying the signal output from the cutting motor signal amplifying means 254 is connected to the cutting motor signal loading means 252 for amplifying the output of the cutting motor signal loading means 252. 255, connected to the drive motor signal load means 253, this drive motor signal load means 2
It is composed of a driving motor amplifying means 256 for amplifying the output of 53. The motor amplifying means 254 is connected to a motor storing means 258 via a motor mutual resetting means 257, and the motor storing means 258 stores the output of the cutting motor signal loading means 252 and the cutting motor storing means 259. It is composed of driving electric motor storage means 260 for storing the output of the driving electric motor load means 253. Then, when any signal of the motor load means 251 is re-input to any of the motor storage means 258, the blower mutual reset means 257 performs mutual reset.

The electric motor storage means 259 of the electric motor storage means 258 is connected to the electric motor storage buffer means 261 for cutting which has one end grounded. Note that no motor output buffer means is connected to the drive motor storage means 260.

In addition, the blower display means 242 has a brush motor 125.
The motor display means 271 for displaying the drive of the motor and the insulation transmission means 272 for controlling the brush motor 125 are connected in series and connected to the terminal A. The insulation transmission means 272 is connected to the brush motor control means 273 for controlling the electric power of the brush motor 125 according to the output of the insulation transmission means 272, and the brush motor control means 273 is connected via the terminal D to the electric vacuum cleaner body. It is connected to the control unit 162 of 101 and also has a terminal F.
Is connected to one end of the brush electric motor 125, and the other end of the brush electric motor 125 is connected to the control unit 162 of the electric vacuum cleaner body 101 via the terminals E and C.

Further, bypass means 274 for turning off the motor display means 271 and the insulation transmission means 272 is connected in parallel with the motor display means 271 and the insulation transmission means 272, and this bypass means 2
The cutting motor output buffer means 261 is connected to 74.

Further, the terminal A is connected with a protection means 275 for protecting the hand permission control means 130 from a surge whose one end is grounded, and the terminal B is connected.
Is grounded.

Next, a specific circuit of the above embodiment will be described with reference to FIGS.

The control means 16 is connected to the commercial AC power supply 161 via a fuse 281.
A triac 282, which is a bidirectional control element of the power control means 187, and an electric blower 107 are connected in series, and the triac 282 is connected with a snubber circuit 285 for protecting the triac 282 including a resistor 283 and a capacitor 284. . Further, terminals C and D are provided at both ends of the commercial AC power supply 161. The electric blower 107 is connected with a noise prevention circuit 289 for preventing noise, which is composed of capacitors 286, 287, 288 connected Δ at both ends of the commercial AC power supply 161 via the electric blower 107 and a fuse 281.

A transformer 163 is connected to the commercial AC power supply 161 via a fuse 281.
Primary winding 164 is connected to the primary winding 164 in parallel and in series for protection fuse 291 and varistor 2
92 is connected. A diode bridge 299 composed of diodes 295, 296, 297, 298 as rectifying means 166 is connected to the secondary winding 165, and the DC output side of the diode bridge 299 is a three-terminal regulator 301 for a constant voltage of, for example, 12 V of the hand-held power supply means 167. Are connected. A smoothing electrolytic capacitor 302 and a capacitor 303 connected in parallel are connected between one end of the three-terminal regulator 301 and the negative electrode of the diode bridge 299, and the other end of the three-terminal regulator 301 and the diode bridge 299 are connected. An electrolytic capacitor 304 and a capacitor 305 are connected between the negative electrode and the negative electrode, respectively. Further, the DC output side of the diode bridge 299 is connected to a 3-terminal regulator 306 for constant voltage of, for example, 5 V of the constant voltage means 168, and a capacitor is provided between one end of the 3-terminal regulator 306 and the negative electrode of the diode bridge 299. 3 terminal regulator 306 connected to 307
A smoothing electrolytic capacitor 308 and a capacitor 309 are connected between the other end of the capacitor and the negative electrode of the diode bridge 299. The collector of an NPN transistor 312 having a bias resistor 311 between the emitter and the base is connected to the positive output side of the diode bridge 299.
There is a bias resistor 313 between the emitter and base.
Is connected, and the emitter of the transistor 314 is connected to the negative side of the diode bridge 299. The base of the transistor 312 and the collector of the transistor 314 are connected to the three-terminal regulator 301 via the resistor 315, and the base of the transistor 314 is connected to the resistor.
It is connected to the central processing unit 172 via 316. Further, an electrolytic capacitor 317 for smoothing and a capacitor 3 are provided between the emitter of the transistor 312 and the emitter of the transistor 314.
18 and 18 are connected in parallel. Diode bridge 299
The negative electrode of the varistor 321 connected in parallel to the protection means 170.
Is connected to the terminal A via the capacitor 322, and is also connected to the terminal B via the varistor 323 and the capacitor 324 which are connected in parallel. A resistor 171 as a current detecting means is connected between the terminal B and the negative electrode of the diode bridge 299, and a resistor 325 is connected between the terminal B and the central processing unit 172.

The three-terminal regulator 306 and the diode bridge 299
An electrolytic capacitor 331 for smoothing is connected between and. Further, the three-terminal regulator 306 is connected to the inverting input terminal of the operational amplifier 173 as the constant current means, and the resistor 332 is connected to the non-inverting input terminal. Further, a detecting means 176 is connected between the output terminal of the operational amplifier 173 and the resistor 332, and the detecting means 176 is a diffused semiconductor such as silicon and equivalently constitutes a resistor bridge composed of resistors 333, 334, 335, 336. ing. A variable resistor 337 serving as an offset gain for gain adjustment is connected between the resistors 333 and 334, and a slider of this variable resistor has a forward input terminal of an operational amplifier 339 of the amplifying means 177 via a resistor 338. And the connection point of resistors 335 and 336 is resistor 340.
And an inverting input terminal of the operational amplifier 339, and a resistor 341 is connected between the inverting input terminal and the output terminal. Further, the non-inverting input terminal of the operational amplifier 339 is connected to the resistor 343 connected from the inverting input terminal of the operational amplifier 173 to the output terminal of the operational amplifier 342 which constitutes the voltage follower circuit.
Is connected. The output terminal of the operational amplifier 339 is connected to the inverting input terminal of the operational amplifier 345 via the resistor 344, and the non-inverting input terminal is connected to the output terminal of the operational amplifier 342 via the resistor 346. A resistor 347 and a semi-fixed resistor 348 for adjusting the amplification degree are connected between the inverting input terminal and the output terminal of the operational amplifier 345, and the output terminal is connected to the central processing unit 172 and the diode bridge 299 via the resistor 349. Is connected to the negative electrode of.

Further, the three-terminal regulator 306 is connected to the negative electrode of the diode bridge 299 via the resistor 331 of the initialization means 178, the Zener diode 352 and the resistor 353. The base of an NPN transistor 354 is connected to the connection point between the cathode of the Zener diode 352 and the resistor 353, and the collector of the transistor 354 is connected to the three-terminal regulator 301 of the first constant voltage means 167 via the resistor 355. The emitter of 354 is the base of the NPN transistor 356, and the collector of this transistor 356 is the central processing unit 172.
The emitter of the transistor 356 is connected to the negative electrode of the diode bridge 299 via a resistor 357 and the positive electrode of the diode bridge 299, respectively. A light emitting diode 3 connected to both ends of the secondary winding 165 of the transformer 163 via the resistor 361 in anti-parallel with the zero-cross detecting means 179 is connected.
62 and 363 are connected, and a phototransistor 364 is photocoupled to the light emitting diodes 362 and 363. The collector of the transistor 364 is connected to the three-terminal regulator 306 of the constant voltage means 168, and the emitter of the transistor 364 is connected to the negative electrode of the diode bridge 299 via the central processing unit 172 and the resistor 365. One end of the resistor 180 as a current limiting means is connected to the three-terminal regulator 301, and the other end is connected to the display means 181 in parallel with the light emitting diode 11.
The cathodes of the light emitting diodes 111, 112, 113 and 114 are connected to the central processing unit 172.

One end of the resistor 371 of the sounding driving means 182 is connected to the central processing unit 172.
The other end is connected to the bias resistor 37 between the emitter and base.
2 is connected to the base of a transistor 373 with the emitter of this transistor 373 being the negative pole of the diode bridge 299 and the collector of this transistor 373 being in parallel with the resistor 375.
Is connected to the buzzer 376 of the sound producing means 183, and is connected to the three-terminal regulator 301 of the hand power supply means 167. Capacitors 381 and 382 are connected in parallel between the central processing unit 172 and the negative electrode of the diode bridge 299, and a resistor is provided between the connection point between the central processing unit 172 and the capacitor 381 and the connection point between the central processing unit 172 and the capacitor 382. 383 and a clock oscillator 384 of the central processing unit 172 are connected in parallel. Further, it is connected from the central processing unit 172 through the resistor 391 of the output control means 186 to the transistor 393 having the bias resistor 392 between the emitter and the base.
The emitter of 93 is connected to the negative electrode of the diode bridge 299, and the collector of this transistor 393 is connected to the three-terminal regulator 301 of the power supply means 167 via the light emitting diode 394 of the insulating means 185 and the resistor 395. The light emitting diode 394 is formed by the photo triac 396 and photo coupling.
Phototriac 396, electrically isolated and connected
Is connected to the gate of the triac 282 and the connection point between the triac 282 and the electric blower 137 via the resistor 397.

Next, a specific circuit of the hand permission control means 130 shown in FIG. 1 will be described with reference to FIG.

Zener diode 401 connected in parallel between terminals A and B
And a protection means 275 consisting of an electrolytic capacitor 402 is connected.

At the terminal A, a blower signal load means 223 for cutting, which is composed of a load resistor 404 having a noise prevention capacitor 403 in parallel, an automatic blower signal load means 224, which is composed of a load resistor 406 having a noise prevention capacitor 405 in parallel, and noise in parallel. One end of each of the weak blower signal load means 225 composed of the load resistor 408 having the prevention capacitor 407 and the load resistor 410 having the noise prevention capacitor 409 in parallel is connected. Then, between the other end of the load resistor 404 of the blower signal load means 223 for cutting and the terminal B, a parallel resistor 41 for preventing malfunction is provided in parallel.
A blower opening / closing means for cutting 21 comprising a normally-open contact 150 having 1
2. Between the other end of the load resistor 406 of the automatic blower signal load means 224 and the terminal B, a parallel resistor 41 for preventing malfunction is provided in parallel.
Automatic blower opening / closing means 21 consisting of normally open contact 144 having 2
3. A parallel resistor 413 for preventing malfunction is connected in parallel between the other end of the load resistor 406 of the weak fan signal load means 226 and the terminal B.
Between the other end of the load resistor 410 of the weak blower opening / closing means 214 and the strong blower signal load means 226 and the terminal B, the parallel resistor 414 for preventing malfunction is formed.
A blower opening / closing means 215 for strong use, which is composed of a normally open contact 141 having a. An initializing capacitor 415 is connected in parallel with the parallel resistor 411 and the normally-open contact 152 of the cutting blower opening / closing means 212.

Further, a capacitor 421 for preventing noise is connected in parallel with the terminal A.
Cutting motor signal load means 2 consisting of load resistance 422 having
It is connected to one end of a driving electric motor signal load means 253 including a load resistor 424 having a noise prevention capacitor 423 in parallel with 52. Between the other end of the cutting motor signal load means 252 and the terminal B, a normally open contact 155 having a bypass resistor 425 for preventing malfunction is connected in parallel, and the other end of the driving motor signal load means 253 is connected. A normally open contact 154 having a bypass resistance 426 for preventing malfunction is connected in parallel between the terminal B and the terminal B. Further, a load resistor 428 having a noise preventing capacitor 427 and a malfunction preventing resistor 429 are connected in series from the terminal A to the terminal B in parallel.

431 and 432 are integrated circuits (IC), and these ICs 431 and 432 are
The blower amplification means 227, the blower mutual reset means 232, the blower storage means 233, the blower output buffer means 238, the electric motor amplification means 254, the electric motor mutual reset means 257, the electric motor storage means 258, and the electric motor output buffer means 261 are provided. There is. Then, the terminals of the IC431, the terminals, the terminals, the terminals of the IC432, and the terminals of the IC432 are connected to the terminal A and the terminal B through the capacitor 433 for the initialization, and the terminals of the IC431 and the terminals of the IC432 are It is connected to terminal B. The load resistance 284 of the cutting blower signal load means 223 and the cutting blower opening / closing means 21
The connection point with the normally open contact 150 of 2 is the terminal of IC431, the connection point between the load resistance 406 of the automatic blower signal load means 224 and the normally open contact 144 of the automatic blower opening / closing means 213 is the terminal of IC431, the weak blower. The connection point between the load resistance 408 of the signal load means 225 and the normally-open contact 147 of the weak blower opening / closing means 214 is a terminal of the IC431,
The connection points between the load resistance 410 of the high-power blower signal load means 226 and the normally-open contact 141 of the high-power blower opening / closing means 215 are connected to the terminals of the IC 431, respectively, and the load resistance 422 of the cutting motor signal load means 252 and the cutting resistance. The connection point of the motor opening / closing means 271 with the normally open contact 155 is the terminal of IC432, the drive motor signal load means 253.
Load resistance 426 and normally open contact 15 of the drive motor opening / closing means 218
The connection point with 4 is connected to the terminal of IC432. Also,
The terminals of IC431 and IC432 are connected, the terminals of IC431 and IC432 are connected, and the terminals of IC431 and
A diode 435 is connected between the IC432 terminal and the IC432 terminal, and a diode 436 is connected between the IC431 terminal and the IC432 terminal.

Further, the connection point of the normally open contact 150 of the cutting blower opening / closing means 212 and the load resistance 404 of the cutting blower signal loading means 223 to the normally open contact 155 of the cutting motor opening / closing means 217 and the load of the cutting motor signal loading means 252 The diode 220 is connected between the connection point of the resistor 422 and the automatic blower opening / closing unit 213.
Of the normally open contact 144 and the load resistance 406 of the automatic blower signal load means 224 and the normally open contact 154 of the drive motor opening / closing means 28 and the load resistance 42 of the drive blower signal load means 253.
The diode 221 is connected to the connection point 4 and the diode 220 and the diode 221 constitute a logic processing unit 219.

The terminal of the IC 431 has an automatic display means 243 composed of a light emitting diode 146 having a compensation resistor 441 in series, the terminal has a weak display means 244 composed of a light emitting diode 149 having a compensation resistor 442 in series, and a terminal of Compensation resistor 443 in series
Is connected to the terminal A via a light emitting diode 271 serving as an electric motor display means and a light emitting diode 444 of the insulation transmission means 272. A phototriac 445 is photocoupled to the light emitting diode 272 of the insulation transfer means 272. The phototriac 445 is connected via a resistor 446 to one end and a gate of a triac 273 as a motor control unit. The triac is connected to the electric vacuum cleaner body 101 through the terminal D and the terminal F.
Is connected to one end of the electric brush blower 125, and the other end of the electric brush blower 125 is connected to the electric vacuum cleaner body 101 via terminals E and C.

At the terminal of IC432, the resistance 24
A resistor 248 as weak current varying means is connected to the 9th terminal, and these resistors 249 and 248 are connected to the terminal A.
In this embodiment, the automatic current variable means 247 is not specially provided, and the light emitting diode 146 and the compensation resistor 441 of the automatic blower display means 243 are used as the automatic current variable means 247.

Further, the terminal of the IC 432 has a bias resistor 452 between the base and emitter of the bypass means 274 via a resistor 451 and the emitter and emitter terminals at both ends of the light emitting diodes 271 and 272.
A PNP transistor 453 to which a collector is connected is connected.

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

First, when the power is turned on, the voltage of the commercial AC power supply 161 is stepped down by the transformer 163 and rectified by the rectifying means 166, and then is made constant by the constant voltage means 168. To initialize.

Further, it is converted to a constant voltage by the hand power supply means 167 and output to the hand control means 130 via the transmission line. Then, when the phase angle of the commercial AC power supply 161 is 0 ° or 180 °, the zero-crossing detecting means 179 detects zero voltage, and the current detecting means 171
Is output to the A / D conversion means 194 via the input switching means 193, and the output current value is averaged to temporarily store means 19
Remember in 8. When it is determined that this current value is set to “strong”, the trigger time of the triac 187 is set to a value corresponding to the output of “strong”, and when it is determined that the current value is set to “weak”, the trigger time of the triac 187 is set. The trigger time is set to a value corresponding to the output of “weak”. When it is determined that the setting is “OFF”, the triac 187 is not triggered.

Further, when it is determined that the automatic setting is set, the average value of the output voltage from the wind path detecting means 174 is set, the average value is compared with the data in 197 in the data storage means, and the arithmetic processing means 200 is used. Perform arithmetic processing. Then, the output control means 186 outputs the trigger at the set triac trigger time.

In addition, the hand control means 130 includes, for example, the electric blower 107
If you want to set the output of to
2 is pressed, the blower opening / closing means 215 for high power is operated, and the blower signal load means 226 for high power is activated to be amplified by the blower amplifying means 231 for high power, and then the previous memory is reset by the blower mutual resetting means 232 for strong use. The blower storage means 237 stores it.
At this time, the strong light emitting diode 143 of the manual operation unit 126 is turned on, and the level meter 115 of the electric vacuum cleaner body 101 lights all the light emitting diodes 111, 112, 113, 114, for example, to indicate "strong".

Also, when the weak operation button 148 is pressed, the electric blower 107 outputs a weak output by the same operation, and the hand operation unit 126
And the level meter 115 of the vacuum cleaner body 101 lights only one light emitting diode 111 indicating that the level is weak.

When the output of the electric blower 137 is set to automatic, when the automatic operation button 145 is pressed to make it automatic, the automatic indicator 146 of the manual operation unit 126 lights up and the vacuum cleaner body 101 emits light. The diodes 111, 112, 113, 114 flash according to the output of the electric blower 107.

Further, when the brush electric motor 125 is turned on, when the operation button 152 of the driving electric motor opening / closing means 218 is closed, the driving electric motor signal load means 253 is operated and the automatic blower signal load is caused by the diode 221 of the logic processing means 219. Actuating means 224. When the driving electric motor signal load means 253 operates, the driving electric motor amplifying means 256 amplifies, and the electric motor mutual resetting means 257 stores in the driving electric motor storing means 260 that the brush electric motor 125 is driven and the cutting electric motor. The memory content of the memory means 259 is reset, the base current of the transistor 453 of the bypass means 274 is stopped, and the current bypassed by the bypass means 274 is indicated by the light emitting diode 271 and the isolated transmission. Flow through the light emitting diode 324 of the means 272. As a result, the photo-coupled photo triac 445 is turned on to turn on the triac 273 to drive the brush motor 125. Further, the automatic blower signal load means 224 is driven to automatically drive the electric blower 1
07 drives.

Conversely, when the brush motor 125 is turned off, the cutting motor signal load means 252 is operated by closing the operation button 153 of the cutting motor opening / closing means 217. When the cutting motor signal loading means 252 operates, the cutting motor amplification means 2
It is amplified by 55, the electric motor mutual resetting means 257 stores in the cutting electric motor storing means 259 that the brush electric motor 125 is turned off, the stored contents of the driving electric motor storing means 260 are reset, and output by the electric motor output buffer means 261. Then, the base current is applied to the transistor 453 of the bypass means 274 to indicate that the brush motor 125 is driven.
The current flowing through the light emitting diode 454 of 71 and the isolation transfer means 272 is bypassed to the bypass means 274. Then, the light emitting diode 444 of the insulation transmission means 272 is turned off, the phototriac 445 is not triggered, the triac 273 is turned off, and the brush motor 125 is turned off.
The light emitting diode 444 is turned off to indicate that the brush motor 125 is off.

When the cutting operation button 151 is pressed, the cutting blower opening / closing means 212 is operated, the cutting blower signal load means 223 is operated, and the diode 2 of the logic processing means 219 is operated.
At 20, the cutting motor signal load means 252 is operated. As a result, the electric blower 107 is stopped and the brush electric motor 125 is also stopped, and the display means 18 indicating the driving of the electric blower 107 is displayed.
1 also a light emitting diode 271 showing the drive of the brush motor 125
Also goes out.

Further, when clogging or the like occurs, the sounding driving means 182 drives the buzzer 316 of the sounding means 13.

According to the above-described embodiment, the operating current in the hand control means 130 is used to flow to the insulation transmitting means 272 or the bypass means 2.
Since it is performed by bypassing to 74, the brush motor 125 can be controlled without greatly changing the operating current. Further, since the brush electric motor 125 is controlled by the operating current of the hand control means 130 without directly controlling the power supply power of the brush electric motor 125, the configuration becomes easy.

In addition, the drive display of the brush motor 125 is a hand control means 1.
Since 30 operating currents are used, the configuration can be facilitated.

Next, another embodiment will be described with reference to FIG. 10 to FIG.

In the embodiment shown in the block diagram of FIG. 10, the logic processing means 219 of the embodiment shown in the block diagram of FIG. A constant current means 462 for supplying a constant current to the blower display means 243, 244, 245 and the electric motor display means 271 is provided between the insulation transfer means 272 and the bypass means 274.

As shown in FIG. 12, the specific circuit of this block diagram is such that any one of the automatic blower opening / closing means 213, the weak blower opening / closing means 214, or the strong blower opening / closing means 215 is provided on the anode side of the diode 221 of the logic processing means 219. A changeover switch 461 is connected as a selection means for making a changeover connection with one of them. Further, the constant current means 462 is composed of two so-called constant current diodes (for example, Ishizuka Electronics model E-452) 463,464. Further, a resistance 465 for driving the constant current diode 463, 464 transistor 453 is connected in parallel.
The base of the transistor 453 is the IC via the resistor 331.
It is connected to the terminal of 432.

Further, the changeover switch 461 is a rotary type switch, and is arranged in the vicinity of the operation button 151 for cutting of the hand operation unit 126.

At the time of use, the changeover switch 461 is rotated to set either the automatic blower opening / closing means 213, the weak blower opening / closing means 214 or the strong blower opening / closing means 215. This allows
When the operation button 152 for driving the brush electric motor 125 is pressed, the brush electric motor 125 is driven and the electric blower 107 is driven in an arbitrarily set state.

Moreover, since the constant current means 462 always supplies a constant current,
When a current is passed through any of the light emitting diode 271 as the motor display means, the light emitting diode of the insulation transmission means 272, and the transistor 453 of the bypass means 274, the current for signals is not affected. Further, the signal current is not affected even by variations in resistance value or the like between the respective elements.

The selection means 461 is not limited to being provided inside the logic processing means 219, but may be provided outside the logic processing means 219.

〔The invention's effect〕

According to the invention of claim 1, the output of the blower opening / closing means and the output of the electric motor opening / closing means are logically processed by the logic processing means, so that the electric blower and the electric motor can be controlled in conjunction with each other.

According to the invention of claim 2, the operation stage of the electric blower linked with the electric motor can be selected by the selecting means, so that the operation stage of the electric blower linked with the electric motor can be arbitrarily selected.

[Brief description of drawings]

FIG. 1 is a block diagram showing a hand control unit according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing a logic processing unit according to the first embodiment, and FIG.
FIG. 4 is a circuit diagram of the same vacuum cleaner main body, FIG. 4 is a block diagram showing the central processing unit of the same above, FIG. 5 is a circuit diagram of the same vacuum cleaner main body, and FIG. 7th
FIG. 8 is a perspective view showing the same vacuum cleaner main body, FIG. 8 is a front view showing the hand permission control section of the same, FIG. 9 is an upper end view of the same, and FIG. 10 is a block diagram showing hand permission control means of another embodiment. FIG. 11 is a circuit diagram showing the same logic processing means as above, FIG. 12 is a circuit diagram showing the above hand permission control means, FIG. 13 is a front view showing the above hand permission control means, and FIG. 14 is a vacuum cleaner showing a conventional example. FIG. 15 is a block diagram of the same as above. FIG.
FIG. 1 is a block diagram showing another conventional permission control means. 101 …… Vacuum cleaner body, 107 …… Electric blower, 121 ……
Suction port, 125 …… Brush electric motor, 128 …… Hose part,
130: Hand control means, 162: Control means, 167: Hand power supply means, 171: Current detection means, 187: Electric power control means, 211: Blower opening / closing means, 216: Electric motor opening / closing means,
219 ... Logic processing means, 222 ... Blower signal load means, 232 ... Blower mutual reset means, 233 ... Blower storage means, 242 ... Blower display means, 246 ... Current varying means, 253 ... Motor signal load Means, 257 ... electric motor mutual reset means, 271 ... electric motor display means, 272 ... insulation transmission means, 273 ... electric motor control means, 274 ... bypass means,
461 …… Selection means.

Claims (2)

[Claims] 1. An electric vacuum cleaner main body having an electric blower and control means for controlling the output of the electric blower, a suction port body connected to a tip end of the electric blower and provided with the electric motor, and the electric blower connected to the control means. A hose section having a hand control means for controlling the output and the electric motor, wherein the control means includes a hand power supply means for supplying electric power to the hand control means, and a current detection means for detecting a current of the hand control means. An output control unit that controls an electric power control unit that drives an electric blower according to the output of the current detection unit, wherein the permission control unit is a blower opening / closing unit that selects an operation stage of the electric blower, and an electric motor of the electric motor. A motor opening / closing means for selecting an operation step, a phase according to the operation step set by the blower opening / closing means and the operation step set by the motor opening / closing means Logic processing means for processing the interlocking and non-interlocking operations of the fan with the set logic, and a blower signal load means for generating a signal output corresponding to the blower opening / closing output from the blower opening / closing means logically processed by the logic processing means. A blower storage means for storing the output of the blower signal load means, a blower mutual reset means for performing mutual reset when the signal of the blower signal load means is re-input, and an output of the blower storage means for the electric blower. A blower display means for displaying the operation stage, a current varying means for outputting a current corresponding to the output of the blower storage means to the current detecting means, and an electric motor from the electric motor opening / closing means which is logically processed by the logic processing means. A motor signal load means for generating a signal output corresponding to the opening / closing output and the output of the motor signal load means are stored. Electric motor storage means, electric motor mutual reset means for performing mutual reset when the signal of the electric motor signal load means is re-input, electric motor display means for displaying the operation stage of the electric motor according to the output of the storage means, and the blower. Insulation transmission means connected in series with display means for controlling the electric motor, and electric motor display means connected in parallel with the electric motor display means and the insulation transmission means and controlled by the electric motor opening / closing means and the insulation transmission means are turned off. An electric vacuum cleaner comprising: a bypass unit and an electric unit control unit that drives the electric unit by the output of the insulation transmission unit. 2. The electric vacuum cleaner according to claim 1, further comprising selection means for selectively setting interlocking and non-interlocking operations of the logic processing means.