JP2002224002A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of easily restraining electric power consumption with the simple constitution. SOLUTION: When connecting a hose to a suction part of a cleaner body, a resistance R21 of an operation means 21 is connected between connectors 12a and 12b of the suction part. A high level is outputted from an output terminal of an operation amplifier OP1, a transistor Q2 is turned on, and a transistor Q1 is turned on. A control means 32 determines a vacuum cleaner as a cleaning form, and performs control for supplying electric power to a microcomputer 31 from a microcomputer power source part 35. In an electrically unconnected state of the hose, a low level is outputted from the output terminal of the operation amplifier OP1, the transistor Q2 is turned off, and the transistor Q1 is turned off. The control means 32 determines the vacuum cleaner as a non- cleaning state, and stops to supply electric power to the microcomputer 31 from the microcomputer power source part 35. The electric power consumption in the microcomputer 31 can be prevented without separately arranging a power switch only in a connecting state of the hose.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having control means having an integrated circuit for controlling the driving state of an electric blower by setting operation of operation means.

[0002]

2. Description of the Related Art Conventionally, a canister type vacuum cleaner has been known as a vacuum cleaner for driving an electric blower with electric power supplied from a battery, for example. This canister-type vacuum cleaner includes a main body case that houses an electric blower and a battery that supplies electric power to the electric blower. The main body case is provided with a suction portion which communicates with the suction side of the electric blower and has a main body suction opening. Further, a base end of a hose is detachably connected to the suction portion. Further, control means having an integrated circuit such as a microcomputer is provided in the case body. On the other hand, a grip portion to which an extension tube or a suction port is connected is provided at the tip of the hose. The grip is provided with operating means for setting the driving state of the electric blower.

In this canister type vacuum cleaner, an electric blower is driven by an integrated circuit of control means in a main body case by setting operation of operation means. By driving the electric blower, a configuration is adopted in which dust is sucked together with air from the suction port of the suction port body connected to the hose via the extension pipe and dust is cleaned.

[0004]

However, in the canister type vacuum cleaner equipped with the battery, the control means has an integrated circuit, and even if the operation means is controlled to stop the electric blower. Since power is supplied to the integrated circuit, standby power is supplied to the control unit even when cleaning is not performed, and the charging power of the battery is gradually consumed. For this reason, if the state where cleaning is not performed continues, a state may occur in which the remaining charge of the battery is almost exhausted, and the charge cycle life of the battery may be reduced.

Therefore, although it is not known, in a state where cleaning is not performed, a separately provided power switch is turned off to stop the power supply to the control means, thereby setting a power saving mode. A configuration for preventing the remaining amount from running out can be considered.

However, a separate power switch is required, which complicates the structure and necessitates operating the power switch each time cleaning is started or ended, which complicates the operation.

[0007] The present invention has been made in view of the above problems, and has as its object to provide a vacuum cleaner that can easily suppress power consumption with a simple configuration.

[0008]

According to a first aspect of the present invention, there is provided an electric vacuum cleaner, which accommodates an electric blower and communicates with an intake side of the electric blower to open a main body suction opening; A hose having one end connected to the main body suction port, operating means provided on the hose for setting a driving state of the electric blower, and an integrated circuit for controlling the driving state of the electric blower in accordance with the setting of the operating means And control means including a power cutoff unit for stopping supply of power to the integrated circuit in a state where the hose is disconnected from the main body suction port of the cleaner body.

[0009] When the hose provided with the operating means is not connected to the main body suction port of the cleaner body, it is determined that the state is not the cleaning state, and the power supply cutoff unit supplies power to the integrated circuit. Control to stop. This allows
The power supply to the integrated circuit at the time of cleaning and the suction of the main body of the vacuum cleaner main body only by connecting the hose at the start of cleaning and removing the hose at the end of cleaning without providing a separate power switch etc. This facilitates prevention of power consumption in the integrated circuit in a state where the hose is disconnected and is not cleaned.

According to a second aspect of the present invention, there is provided a vacuum cleaner which accommodates an electric blower and communicates with the suction side of the electric blower to open a main body suction opening, and a suction opening on a lower surface opposed to a surface to be cleaned. A suction port body that is open and is connected to the main body suction port of the cleaner body so that the suction port communicates with the main body; operating means for setting a driving state of the electric blower; and the electric motor corresponding to the setting of the operating means. Control means comprising: an integrated circuit for controlling a driving state of the blower; and a power cutoff unit for stopping supply of power to the integrated circuit when the suction port body is disconnected from a main body suction port of the cleaner body. Is provided.

In a state where the suction port is not connected to the main body suction port of the cleaner body, it is determined that the state is not a cleaning state, and the power cutoff unit stops the supply of power to the integrated circuit. do. As a result, the power supply to the integrated circuit at the time of cleaning can be performed only by connecting the suction port at the start of cleaning or removing the suction port at the end of cleaning without providing a power switch or the like separately, and This facilitates prevention of power consumption in the integrated circuit in a state in which the suction port body is detached from the main body suction port of the cleaner body and is not cleaned.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a vacuum cleaner according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a cleaner body, and the cleaner body 1 has a case body 1a. This case body
1a is provided with a mounting portion 3 having a mounting lower concave portion 2 that is concave toward the front side in the running direction and upward. A drive unit 4 that houses an electric blower M, a storage battery E that is a battery that supplies power to the electric blower M, and a circuit board that controls the driving of the electric blower M is provided behind the case 1a in the traveling direction. Is provided.

The case body 1a is provided with a revolvable swivel wheel (not shown) on the lower surface on the front side. Also,
In the case body 1a, driven wheels are rotatably provided on both rear sides. Then, the case body 1a can travel on the floor surface with the turning wheel and the driven wheel. Also, the case body 1a
The bottomed cylindrical dust collecting part 7 is attached to the lower end
And is removably mounted and retained by being inserted into and engaged with. Further, a lid 8 is attached to the case 1a. The lid 8 is provided with a mounting recess (not shown) that is concave toward the lower side and that is fitted downward to hold the upper peripheral edge of the dust collecting portion 7 by inserting, engaging and holding the same. The lid 8 covers the upper part of the dust collecting part 7 and the upper surface of the driving part 4 of the case body 1a so as to be opened by rotation, and makes the dust collecting part 7 and the electric blower M communicate with each other in a substantially airtight manner. Further, on the side surface of the case body 1a, a plurality of exhaust ports 9 for discharging exhaust air discharged from the electric blower M are formed.

In addition, a suction portion 12 is provided at the upper front side of the lid 8 as a connection portion to which the hose 11 is detachably connected. The suction part 12 is formed with a main body suction port (not shown) as a connection port which communicates with the dust collecting part 7 and is directed forward. Further, a connector 12
a and 12b are provided. Power is supplied to the connectors 12a and 12b from, for example, a storage battery E provided in the case body 1a. In addition, a display unit 13 is provided near the suction unit 12. The display unit 13 displays, for example, a message indicating that the remaining charge of the storage battery E is low and charging is required.

On the other hand, the hose 11 includes a hose body 14 having a pair of flexible wires 11a, 11a spirally provided. At the base end, which is one end of the hose body 14, a connection pipe 15 is provided which is detachably inserted and connected to the suction section 12 of the cleaner body 1. Also, the hose body 14
A grip 19 to which a suction port 18 is connected via an extension tube 17 is provided at the other end of the grip. And connecting pipe
The terminal 15 is provided with terminal pins 15a and 15b. These terminal pins 15a, 15b are connected to the electric wires 11a, 11a of the hose body 14, and are connected to the connectors 12a, 12b of the suction part 12 when the connection pipe 15 is connected to the suction part 12. Further, the grip 19 includes
An operating means 21 connected to the electric wire 11a of the hose body 14 is provided. The operating unit 21 is various switches for setting and operating the driving state of the electric blower M and the electric motor that rotationally drives the rotating cleaning body and the running wheels (not shown) of the suction port body 18, for example, a stop switch 20 a and a driving switch. It has a weak setting switch 20b and a strong setting switch 20c which is a driving switch. And further, in the gripping part 19,
A female connector is provided. This female connector is connected to the electric wire of the hose body 14 and has a connection terminal (not shown).

The suction port body 18 rotatably supports the rotary cleaning body facing a suction port (not shown) opened on the lower surface, and includes a motor for rotating the rotary cleaning body. Further, a connecting pipe 23 communicating with the suction port is pivotally connected to a rear portion of the suction port body 18. The connecting tube 23 is provided with a connector portion 24. The connector section 24 is provided with a pin terminal, which is a pair of contacts (not shown) electrically connected to the electric motor. The pin terminal is detachably engaged with the female connector of the holding portion 19 of the hose 11, and is electrically connectable to the connection terminal by connecting to the female connector.

Next, the circuit configuration of the above embodiment will be described with reference to FIG.

A microcomputer 31, which is an integrated circuit, and other various electric components are provided on a circuit board (not shown) accommodated in the cleaner body 1, and a control means 32 is mounted thereon. The control means 32 of the circuit board is connected to the storage battery E housed in the cleaner body 1 and to the electric blower M.

The control means 32 is connected to the microcomputer 31 and the electric blower M, and drives the electric blower M by controlling the electric power supplied from the storage battery E. The microcomputer 37 includes a drive unit 37 for performing the operation, a microcomputer power supply unit 35, and a microcomputer power cutoff unit 38 connected to the drive unit 37 and serving as a power cutoff unit that cuts off power supplied from the microcomputer power supply unit 35 to the microcomputer 31.

The microcomputer of the control means 32
The operating means 21 is connected to 31 via a pair of wires 11a of the hose body 14.

A resistor R1 is connected between the two poles of the storage battery E.
A series circuit of resistors R2, R3 and R4 is connected. The connection point of the resistor R1 and the resistor R2 is connected to the resistor R5.
Is connected to the base of the transistor Q1. Further, the emitter of the transistor Q1 is connected to the positive electrode of the storage battery E, and the collector of the transistor Q1 is connected to a constant voltage source 43 of a 5 V three-terminal regulator via a resistor R6. 31 and the negative electrode of the storage battery E.

Further, the connection point of the resistor R3 and the resistor R4 is connected to the base of the transistor Q2 via the resistor R7. The emitter of the transistor Q2 is connected to a contact point between the resistors R2 and R3, and the collector of the transistor Q2 is connected to a connection point between the negative electrode of the storage battery E and the resistor R4.

Further, the V _R terminal of the microcomputer 31, one of the connectors 12b of the cleaner body 1 is connected. And the microcomputer 31 and the connector
A capacitor C1 and a resistor R8 are connected in parallel between the connection point 12b and the negative electrode of the storage battery E. The other connector 12a of the cleaner body 1 is connected to a constant voltage supply Vcc converted to, for example, 5V via a resistor R9.

Further, a connection point between the microcomputer 31 and the connector 12b is connected to a non-inverting input terminal of an operational amplifier OP1 constituting a comparator to which power is supplied from a constant voltage supply Vcc. And the operational amplifier OP1
Is connected to a constant voltage supply Vcc converted to, for example, 5 V via a resistor R10.
11 is grounded through. The output terminal of the operational amplifier OP1 is connected to a connection point between the resistors R3 and R4. Note that the other end of the internal switch OPSW1, one end of which is connected to the output terminal of the operational amplifier OP1, is grounded.

The resistors R1 to R11, the transistors Q1 and Q2, the capacitor C1, the constant voltage supply Vcc,
The microcomputer power cutoff unit 38 of the control unit 32 is configured by the operational amplifier OP1.

The capacitor C2 is connected to the input terminal of the constant voltage source 43, and the capacitor C3 is connected to the output terminal. And these constant voltage source 43 and capacitor C2,
The microcomputer power supply unit 35 of the control means 32 is configured by C3.

The microcomputer 31 has a resistor
The base of the transistor Q3 is connected via R15. The emitter of this transistor Q3 is a storage battery E
And the collector is connected to the base of the transistor Q4 via the resistor R16. The collector of the transistor Q4 is connected to the negative electrode of the storage battery E via a resistor R17, and the emitter is connected to the transistor Q1 via a resistor R6.
Connected to the collector. In addition, transistor Q4
Is connected to the gate of a field-effect transistor Q5. The drain and source of the field-effect transistor Q5 form a series circuit with the electric blower M and are connected between both poles of a storage battery E, and have resistors R15, R16, R17. And transistor Q
The driving section 37 is composed of 3, Q4 and the field effect transistor Q5.

The display unit 13 is connected to the microcomputer 31.

On the other hand, the operating means 21 has a resistor R21 connected between the pair of electric wires 11a of the hose 11. Also, between the electric wires 11a and 11a, a series circuit of the resistor R22 and the stop switch 20a, a series circuit of the resistor R23 and the weak setting switch 20b, and a resistor R24 are connected in parallel with the resistor R21.
And a series circuit of the high setting switch 20c. Note that the resistors R22, R23, and R24 are set to different resistance values.

The "weak" and "strong" control of the electric blower M by the control means 32 is performed by changing the time for outputting the high level to the drive unit 37, that is, by increasing the on-duty which is the high level output and setting the ”, The on-duty that is a high-level output is shortened, and the drive is performed with“ weak ”.

The hose 11 is connected to the suction section 12 of the cleaner body 1.
In a state where the connected yet without connector 12a, is between 12b open to, the voltage at the non-inverting input terminal of the operational amplifier OP1 becomes lower than the voltage at the inverting input terminal (V _R <V _1), an operational amplifier OP1
Internal switch OPSW1 is closed. When the internal switch OPSW1 of the operational amplifier OP1 is closed, the output terminal outputs a low level, the base of the transistor Q2 becomes low level, there is no base current, and the transistor Q2 is turned off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. When the transistor Q1 is turned off, control is performed to cut off the power from the microcomputer power supply unit 35 to the microcomputer 31.

The hose 11 is connected to the suction portion of the main body 1 of the vacuum cleaner.
12 and the resistance of the operating means 21 between the connectors 12a and 12b
When R21 is connected, the voltage at the non-inverting input terminal of the operational amplifier OP1 is higher than the voltage at the inverting input terminal (V _R> V _1),
The internal switch OPSW1 of the operational amplifier OP1 opens. When the internal switch OPSW1 of the operational amplifier OP1 is opened, a high level output is output from the output terminal of the operational amplifier OP1,
The base of the transistor Q2 becomes high level, a base current flows, and the transistor Q2 turns on. When the transistor Q2 is turned on, the base of the transistor Q1 becomes low level, a base current flows, and the transistor Q1 is turned on. Then, when the transistor Q1 is turned on, control is performed to supply power from the microcomputer power supply unit 35 to the microcomputer 31.

When the microcomputer 31 to which the power is supplied recognizes any one of the stop switch 20a, the weak setting switch 20b and the strong setting switch 20c of the operating means 21, it reads a predetermined voltage value. , Drive unit 37
To control the driving of the electric blower M in accordance with the setting operation.

In the connection state of the hose 11 to the suction section 12, even if the connection pipe 15 of the hose 11 is mechanically connected to the suction section 12, for example, the terminal pins 15a, The hose 11 is in a disconnected state even when the connector 12a and 12b are open and electrically disconnected, such as when the 15b is not connected to the connectors 12a and 12b of the suction section 12 or when the electric wire 11a of the hose 11 is broken. .

Next, the operation of the above embodiment will be described with reference to the flowchart shown in FIG. 3 and the waveform diagram shown in FIG.

First, the lower end of the dust collecting portion 7 is inserted into and engaged with the lower mounting recess 2 of the case body 1a, and is mounted and held on the mounting portion 3. Then, the lid 8 is rotated so that the lower surface of the lid 8 is pressed against the upper surface of the case body 1a and the upper surface of the dust collector 7, and the upper portion of the dust collector 7 is inserted into a mounting recess (not shown) of the lid 8. Engage the lid 8
Is closed, and the dust collecting section 7 and the electric blower M are substantially airtightly communicated. Thereafter, a hose is inserted into the main body suction port (not shown) of the suction section 12.
Connect the connection pipes 15 of 11 and, if necessary, through the extension pipes 17
18 is connected, and it becomes a cleaning standby state.

By connecting the hose 11, the connection shown in FIG.
As shown in (b), operation between the connectors 12a and 12b of the suction part 12 is performed.
When the resistor R21 of the operating means 21 is connected (step 1), the operation
The voltage V of the non-inverting input terminal of the amplifier OP1_RIs the inverting input terminal
Voltage V₁Higher (V_R> V ₁), Of the operational amplifier OP1
The section switch OPSW1 is opened. Inside this operational amplifier OP1
When the switch OPSW1 is opened, the operational amplifier OP1
High level output from the output terminal
The high level causes the base current to flow and the transistor
Q2 turns on. By turning on the transistor Q2, the transistor
The base current of the transistor Q1 flows and the transistor Q1 turns off.
On. Then, when the transistor Q1 is turned on,
As shown in FIGS. 4A and 4C, the control means 32 is a microcomputer.
Power is supplied from the power supply unit 35 to the microcomputer 31
Take control. The power to the microcomputer 31
With the supply of power, the microcomputer 31 is initialized.
You.

Here, the electric wire 11a of the hose 11 is broken, or the connection pipe 15 of the hose 11 is not securely connected to the suction section 12, and the terminal pins 15a, 15b of the connection pipe 15 are connected to the connector of the suction section 12.
12a, if the electrical hose 11 is not connected to the 12b is in a disconnection state, the voltage V _R of the non-inverting input terminal of the operational amplifier OP1 becomes lower than the voltage V ₁ of the inverting input terminal (V _R
<V ₁ ), the internal switch OPSW1 of the operational amplifier OP1 is closed. When the internal switch OPSW1 of the operational amplifier OP1 is closed, the output terminal of the operational amplifier OP1 outputs a low level, the base of the transistor Q2 becomes low level, and the base current does not flow, and the transistor Q2 is turned off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. When the transistor Q1 is turned off, the control means 32 performs control to stop supplying power from the microcomputer power supply unit 35 to the microcomputer 31 (step 2).

Then, in step 1, the hose 11 is connected, power is supplied to the microcomputer 31, and the operating means is operated.
In the cleaning standby state waiting for the setting operation of 21, the electric blower M is appropriately operated by operating the operating means 21 of the gripping portion 19 of the hose 11.
Drive to clean. That is, the microcomputer
31 detects the voltage value from the operation means 21 and determines whether or not the setting operation of the high setting switch 20c has been performed (step 3). Then, as shown in FIGS. 4A and 4F, when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor 24 from the operating means 21 by the setting operation of the strong setting switch 20c. In this case, a high level is output to the drive unit 37 in a predetermined time cycle to turn on the transistor Q3. By turning on the transistor Q3, a base current flows through the transistor Q4, turning on the transistor Q4, applying a gate voltage to the field effect transistor Q5, turning on the field effect transistor Q5, and supplying power from the storage battery E to the electric blower M. And drive the electric blower M with "strong"
(Step 4) Return to step 1.

If the microcomputer 31 does not detect the voltage value from the operating means 21 based on the combined resistance value of the resistor R21 and the resistor R24 in step 3, the microcomputer 31 detects the voltage value from the operating means 21 to determine the weak setting. It is determined whether the setting operation of the switch 20b has been performed (step 5). And FIG.
As shown in (a) and (e), when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R23 from the operating means 21 by the setting operation of the weak setting switch 20b, the driving unit A high level is output to 37 at a predetermined time cycle to turn on the transistor Q3. It should be noted that this high-level output time is shorter than the time length per unit time of the high-level output when the electric blower M is controlled to be “strong”. When the transistor Q3 is turned on, a base current flows through the transistor Q4 and the transistor Q3 is turned on.
Q4 is turned on, a gate voltage is applied to the field effect transistor Q5, and the field effect transistor Q5 is turned on to turn on the electric blower M.
The electric blower M is supplied with power from the storage battery E to drive the electric blower M at "weak" (step 6), and the process returns to step 1.

If the microcomputer 31 does not detect the voltage value of the combined resistance value of the resistor R21 and the resistor R23 from the operation means 21 at step 5, the microcomputer 31 detects the voltage value from the operation means 21 and stops the switch. It is determined whether the setting operation of 20a has been performed (step 7). And FIG.
As shown in (a) and (d), when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R22 from the operating means 21 by the setting operation of the stop switch 20a, the microcomputer 31 A low level is output from 31 to the drive unit 37 to turn off the transistor Q3, so that the base current of the transistor Q4 disappears and the transistor Q4 turns off. By turning off the transistor Q4, the gate voltage disappears and the field-effect transistor Q5 turns off, and the electric blower M
Is not supplied from the storage battery E, the electric blower M is stopped (step 8), and the process returns to step 1.

The electric blower M is stopped, the cleaning is completed, and the hose 11 is connected to the cleaner main body 1 in order to clear the vacuum cleaner.
, The process moves from step 1 to step 2. That, is the voltage V _R of the non-inverting input terminal of the operational amplifier OP1 is lower than the voltage V ₁ of the inverting input terminal (V _R <V _1), the control unit 32 determines that there is no state to be cleaned, the microcomputer power supply unit It controls to stop supplying power from the microcomputer 35 to the microcomputer 31 to prevent power consumption in the microcomputer 31 and to enter a power saving mode which is a standby power mode close to the discharge of the self-discharge state of the storage battery E. , To suppress the consumption of charging power.

In step 7, when the microcomputer 31 does not detect the voltage value based on the combined resistance value of the resistor R21 and the resistor R22 from the operation means 21, it is determined that the setting operation has not been performed by the operation means 21. Return to step 1
Continue the standby state.

Further, when the electric blower M is driven to perform cleaning, the hose 11 may come off from the
When the hose 11 is disconnected such that the electric wire 11a is disconnected, the process proceeds from step 1 to step 2. That, is the voltage V _R of the non-inverting input terminal of the operational amplifier OP1 is lower than the voltage V ₁ of the inverting input terminal (V _R <V _1), the control unit 32 the microcomputer power supply unit determines that not the state for cleaning Control to stop the supply of power from 35 to the microcomputer 31 is performed. When the power supply to the microcomputer 31 is stopped, the transistor Q3 is turned off and the transistor Q3 is turned off.
The base current of Q4 disappears, the transistor Q4 turns off, the gate voltage disappears, the field-effect transistor Q5 turns off, no electric power is supplied to the electric blower M from the storage battery E, and the electric blower M stops. Then, when the electric blower M is stopped during cleaning, the cleaning worker checks the connection state of the hose 11 and sets the hose 11 to be electrically connected. The electrical connection of the hose 11, higher than the voltage V ₁ of the non-inverting voltage V _R is the inverting input terminal of the input terminal of the operational amplifier _{OP1 (V R> V 1)} , determines that the state where the control unit 32 to clean Then, the power is supplied to the microcomputer 31 again, the microcomputer 31 is initialized, and the cleaning that waits for the setting operation of the operation means 21 without driving the electric blower M in the driving state before the hose 11 is disconnected. It goes into a standby state.

When the remaining amount of the electric charge of the storage battery E decreases due to the continuation of the cleaning and the driving force of the electric blower M starts to decrease, the microcomputer 31 displays on the display unit 13 that it is necessary to charge the battery. .

As described above, in the above embodiment, when the hose 11 provided with the operating means 21 is disconnected from the main body suction port of the cleaner main body 1, the control means 32 determines that the state is not the cleaning state. Control to stop the supply of power to the microcomputer 31. For this reason, the power supply to the microcomputer 31 at the time of cleaning and the supply of the power to the vacuum cleaner can be performed only by connecting the hose 11 at the start of cleaning or removing the hose 11 at the end of cleaning without providing a separate power switch or the like. Prevention of consumption of charging power in the microcomputer 31 in a state where the hose 11 comes off from the main body suction port of the main body 1 and is not cleaned, that is, switching between the cleaning state and the power saving mode can be easily performed, and the operability is good and the workability is improved. Can be improved.

Since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Next, another embodiment of the present invention will be described with reference to FIGS.

In FIGS. 5 and 6, the threshold voltages for recognizing the disconnected state of the hose 11 in the embodiment shown in FIGS. 1 to 4 are set to different values.

That is, in the embodiment shown in the circuit diagram of FIG. 5, the one connected to the constant voltage supply source Vcc converted to, for example, 5V via the resistor R9 in the embodiment shown in FIGS. Microcomputer 31 to connector 12a
Is connected. The other connector 12b connected to the microcomputer in the embodiment shown in FIGS. 1 to 4 is grounded.

[0052] Further, the V _R terminal of the microcomputer 31, an inverting input terminal connected to the operational amplifier OP1 constituting a comparator. Furthermore, this operational amplifier OP1
Is supplied with power from the constant voltage supply source Vcc. The non-inverting input terminal of the operational amplifier OP1 is connected to a constant voltage supply source Vcc of, for example, 5 V via a resistor R10, and is also grounded via a resistor R11. The output terminal of the operational amplifier OP1 is connected to the base of the transistor Q2 via the resistor R7. Note that one end of the internal switch OPSW1 is connected to the output terminal of the operational amplifier OP1, and the other end of the internal switch OPSW1 is grounded.

[0053] Further, the V _R terminal of the microcomputer 31, between a connection point of the microcomputer 31 and the capacitor C3, the diode D1 is connected.

In the embodiment shown in FIGS. 5 and 6, the connection pipe 15 of the hose 11 is connected to the main body suction port of the suction section 12, and the suction port body 18 is connected via the extension pipe 17 as appropriate. In a cleaning standby state. By setting the cleaning standby state, the connectors 12a and 12a are connected as shown in FIGS.
The resistance R21 of the operating means 21 is connected between 2b, the voltage V _R at the inverting input terminal of the operational amplifier OP1 is lower than the voltage V ₂ of the non-inverting input terminal (V _R <V _2), the internal switch of the operational amplifier OP1
OPSW1 opens. Internal switch OP of this operational amplifier OP1
When SW1 is opened, the output terminal of the operational amplifier OP1 outputs a high level, the base of the transistor Q2 becomes a high level, a base current flows, and the transistor Q2 is turned on. When the transistor Q2 turns on, the transistor Q1
Transistor Q1 is turned on. Then, when the transistor Q1 is turned on, as shown in FIG.
As shown in (c), the control means 32 controls the supply of electric power from the microcomputer power supply unit 35 to the microcomputer 31. The microcomputer 31 is initialized by supplying power to the microcomputer 31.

Here, the electric wire 11a of the hose 11 is disconnected, or the connection pipe 15 of the hose 11 is not securely connected to the suction section 12, and the terminal pins 15a, 15b of the connection pipe 15 are connected to the connector of the suction section 12.
12a, if the electrical hose 11 is not connected to the 12b is in a disconnection state, the voltage V _R at the inverting input terminal of the operational amplifier OP1 is higher than the voltage V ₂ of the non-inverting input terminal (V _R
> V ₂ ), the internal switch OPSW1 of the operational amplifier OP1 is closed. When the internal switch OPSW1 of the operational amplifier OP1 is closed, the output terminal of the operational amplifier OP1 outputs a low level, the base of the transistor Q2 becomes low level, and the base current does not flow, and the transistor Q2 is turned off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. Then, when the transistor Q1 is turned off, the control unit 32 performs control to stop supplying power from the microcomputer power supply unit 35 to the microcomputer 31.

In the cleaning standby state in which the hose 11 is connected and the microcomputer 31 is supplied with electric power and waits for the setting operation of the operating means 21, the electric blower is appropriately operated by operating the operating means 21 of the holding portion 19 of the hose 11. Drive M to clean. That is, the microcomputer 31 first detects the voltage value from the operating means 21 and
It is determined whether or not the setting operation has been performed. And FIG.
As shown in (a) and (f), when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R24 from the operating means 21 by the setting operation of the strong setting switch 20c, the drive is started. A high level is output to the unit 37 in a predetermined time cycle to turn on the transistor Q3. By turning on the transistor Q3, a base current flows through the transistor Q4, turning on the transistor Q4, and turning on the field effect transistor Q5.
, The field effect transistor Q5 is turned on to supply electric power from the storage battery E to the electric blower M, thereby driving the electric blower M to "strong", and enters a standby state for the next setting operation.

The microcomputer 31 is operated by operating means.
When the voltage value based on the combined resistance value of the resistor R21 and the resistor R24 is not detected from 21, the voltage value from the operating means 21 is detected to determine whether or not the setting operation of the weak setting switch 20b has been performed. Then, as shown in FIGS. 6A and 6E, when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R23 from the operating means 21 by the setting operation of the weak setting switch 20b. In step (2), a high level is output to the drive unit 37 for a predetermined time cycle, and a base current is supplied to the transistor Q3 to turn on the transistor Q3. It should be noted that this high-level output time is shorter than the time length per unit time of the high-level output when the electric blower M is controlled to be “strong”. When the transistor Q3 is turned on, a base current flows in the transistor Q4, the transistor Q4 is turned on, a gate voltage is applied to the field effect transistor Q5, the field effect transistor Q5 is turned on, and electric power is supplied from the storage battery E to the electric blower M. Is supplied to drive the electric blower M at "weak", and the apparatus enters a standby state for the next setting operation.

Further, when the microcomputer 31 does not detect the voltage value based on the combined resistance value of the resistor R21 and the resistor R23 from the operating means 21, the microcomputer 31 detects the voltage value from the operating means 21 and sets the stop switch 20a. Is determined. Then, as shown in FIGS. 6A and 6D, when the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R22 from the operating means 21 by the setting operation of the stop switch 20a. Outputs a low level from the microcomputer 31 to the drive unit 37, the base current does not flow through the transistor Q3, the transistor Q3 is turned off, and the base current of the transistor Q4 disappears, and the transistor Q4 is turned off. By turning off the transistor Q4, the gate voltage disappears and the field effect transistor Q5 turns off, so that electric power is not supplied from the storage battery E to the electric blower M, and the electric blower M
Is stopped, and a standby state for the next setting operation is entered.

The electric blower M is stopped to complete the cleaning, and the hose 11 is connected to the cleaner main body 1 in order to clear the vacuum cleaner.
, The process moves from step 1 to step 2. That is, higher than the voltage V ₁ of the non-voltage V _R of the inverting input terminal inverting input terminal of the operational amplifier _{OP1 (V R> V 1)} , the control unit 32 determines that there is no state to be cleaned, the microcomputer power supply unit The microcomputer 35 controls the supply of electric power from the microcomputer 35 to the microcomputer 31 so as to prevent the power consumption of the microcomputer 31 from being consumed. Control consumption.

In the embodiment shown in FIGS. 5 and 6, similarly to the embodiment shown in FIGS. 1 to 4, connection and cleaning of the hose 11 at the start of cleaning can be performed without providing a separate power switch or the like. Supply of power to the microcomputer 31 during cleaning only by removing the hose 11 at the end of the cleaning, and charging power in the microcomputer 31 in a state where the hose 11 is removed from the main body suction port of the cleaner body 1 and is not cleaned. Prevention of consumption, that is, switching between the cleaning state and the power saving mode can be easily performed, the convenience is improved, and the workability can be improved.

Further, since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Next, still another embodiment of the present invention will be described with reference to FIGS.

The embodiment shown in FIG. 7 and FIG.
In the embodiment shown in FIGS. 1 to 4 and in the embodiments shown in FIGS. 5 and 6, when the setting operation of the high setting switch 20c is performed by the operating means 21, the suction port 18 is provided. It drives an electric motor M1 that rotationally drives a rotary cleaning body (not shown).

That is, in the embodiment shown in FIGS. 7 and 8, connectors 12a, 12b and 12c are provided in the suction portion 12 of the cleaner body 1 in the embodiment shown in FIGS.

A microcomputer 31 is connected to one connector 12a to which a constant voltage supply Vcc converted to, for example, 5 V is connected via a resistor R9 in the embodiment shown in FIGS. The other connector 12b connected to the microcomputer in the embodiment shown in FIGS. 1 to 4 is grounded via a resistor R30.

Further, the non-inverting input terminal of the operational amplifier OP1 constituting the comparator is connected to the connector 12b. The operational amplifier OP1 is supplied with power from a constant voltage supply source Vcc. The inverting input terminal of the operational amplifier OP1 is connected to a constant voltage source Vcc of 5 V, for example, via a resistor R10.
And is grounded via a resistor R11. The output terminal of the operational amplifier OP1 is connected to the base of the transistor Q2 via the resistor R7. Note that one end of the internal switch OPSW1 is connected to the output terminal of the operational amplifier OP1, and the other end of the internal switch OPSW1 is grounded.

[0067] Then, the V _R terminal of the microcomputer 31, is between the connection point of the microcomputer 31 and the capacitor C3, the diode D1 is connected.

The microcomputer 31 has a resistor
The base of the transistor Q11 is connected via R31. The emitter of the transistor Q11 is grounded, and the collector of the transistor Q11 is connected to the base of the transistor Q12 via a resistor R32. The emitter of the transistor Q12 is connected to the positive electrode of the storage battery E, and the collector of the transistor Q12 is connected to the connector 12c.

On the other hand, the connection pipe 15 of the hose 11
Terminal pins 15a, 15a connected to the connectors 12a, 12b, 12c
b and 15c are provided. The hose body 14 is provided with electric wires 11a and 11c. Further, a pair of connectors 19a and 19c are provided on the holding portion 19 of the hose 11.
The one connector 19a is connected to the terminal pin 15a via the electric wire 11a. Also, the other connector 19c is
Connected to terminal pin 15c via electric wire 11c. Further, a resistor R34 is connected between the terminal pin 15b and the terminal pin 15c.

The suction port 18 is provided with connectors 24a and 24c connected to the connectors 19a and 19c of the hose 11, respectively. A series circuit of the floor detection switch 51 and the electric motor M1 is connected between the connectors 24a and 24c. The floor detection switch 51 is closed when the suction port body 18 is placed on the floor, and is opened when the suction port body 18 is separated from the floor. Further, a series circuit of the resistor R36 and the light emitting diode LED1 is connected in parallel to the electric motor M1.

Then, the embodiment shown in FIGS.
In the embodiment, the connection pipe 15
Connect the suction port body 18 through the extension pipe 17 as appropriate,
Put in the cleaning standby state. In this cleaning standby state,
As shown in FIGS. 8A and 8B, between the connectors 12a and 12b,
When the resistor R21 of the operating means 21 is connected to the
Of non-inverting input terminal_PIs the voltage V at the inverting input terminal_ThreeYo
Higher (V_P> V _Three), Internal switch of operational amplifier OP1
OPSW1 opens. Internal switch of this operational amplifier OP1
When OPSW1 opens, the output terminal of operational amplifier OP1
Outputs a high level and the base of transistor Q2 is high.
Becomes a bell, base current flows, and transistor Q2 turns on
I do. By turning on the transistor Q2, the transistor
The base current of Q1 flows and transistor Q1 turns on. So
Then, when the transistor Q1 is turned on, FIG.
As shown in (a) and (d), the microcomputer power supply 35
The power supply to the computer 31 is controlled. In addition,
By supplying power to the microcomputer 31,
The micro computer 31 is initialized.

Here, the electric wire 11a of the hose 11 is disconnected, or the connection pipe 15 of the hose 11 is not securely connected to the suction section 12, and the terminal pins 15a, 15b of the connection pipe 15 are connected to the connector of the suction section 12.
12a, if the electrical hose 11 is not connected to the 12b is in a disconnection state, the voltage V _P of the non-inverting input terminal of the operational amplifier OP1 becomes lower than the voltage V ₃ of the inverting input terminal (V _P
<V ₃ ), the internal switch OPSW1 of the operational amplifier OP1 is closed. When the internal switch OPSW1 of the operational amplifier OP1 is closed, the output terminal of the operational amplifier OP1 outputs a low level, the base of the transistor Q2 becomes low level, and the base current does not flow, and the transistor Q2 is turned off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. When the transistor Q1 is turned off, control is performed to cut off the power from the microcomputer power supply unit 35 to the microcomputer 31.

Then, in the cleaning standby state in which the hose 11 is connected and the microcomputer 31 is supplied with power and the setting operation of the operating means 21 is waited, the electric blower is appropriately operated by operating the operating means 21 of the holding portion 19 of the hose 11. Drive M to clean. That is, the microcomputer 31 first detects the voltage value from the operating means 21 and
It is determined whether or not the setting operation has been performed. When the microcomputer 31 detects the voltage value based on the combined resistance value of the resistor R21 and the resistor R24 from the operating means 21 through the setting operation of the high setting switch 20c, the microcomputer 31 outputs a high-level signal to the driving unit 37 in a predetermined time cycle. Then, the transistor Q3 is turned on. When the transistor Q3 turns on, a base current flows through the transistor Q4, turning on the transistor Q4.
The gate voltage is applied to the field-effect transistor Q5, the field-effect transistor Q5 is turned on, the power is supplied from the storage battery E to the electric blower M, and the electric blower M is driven at "strong", and the standby state for the next setting operation is performed. Become.

Here, in the cleaning state in which the strong setting switch 20c is set and the suction port 18 is placed on the floor, as shown in FIGS. 51 closes. And the transistor of the microcomputer 31
A high level is output from the port connected to Q11, and a base current is supplied to transistor Q11 to turn on transistor Q11. When the transistor Q11 is turned on, the base current of the transistor Q12 flows, and the transistor Q12 is turned on. The electric power is supplied to the electric motor M1 from the storage battery E to drive the electric motor M1.

The microcomputer 31 is operated by operating means.
When the voltage value based on the combined resistance value of the resistor R21 and the resistor R24 is not detected from 21, the voltage value from the operating means 21 is detected to determine whether or not the setting operation of the weak setting switch 20b has been performed. Then, the microcomputer 31 operates the weak setting switch 20b to set the resistance R from the operating means 21.
When a voltage value based on a combined resistance value of the resistor 21 and the resistor R23 is detected, a high level is output to the drive unit 37 in a predetermined time cycle, and a base current is supplied to the transistor Q3 to turn on the transistor Q3. It should be noted that this high-level output time is shorter than the time length per unit time of the high-level output when the electric blower M is controlled to be “strong”. When the transistor Q3 is turned on, the transistor
When a base current flows through Q4, transistor Q4 is turned on, a gate voltage is applied to field effect transistor Q5, field effect transistor Q5 is turned on, electric power is supplied from electric storage battery E to electric blower M, and electric blower M is set to "weak". ”To enter a standby state for the next setting operation.

Here, even in the cleaning state in which the suction port body 18 is placed on the floor, since the setting operation of the strong setting switch 20c for driving the electric motor M1 is not performed, the transistor Q11 of the microcomputer 31 is turned off. Output low level from the connected port. Due to this low-level output, the base current does not flow through the transistor Q11, the transistor Q11 is turned off, the base current of the transistor Q12 does not flow, the transistor Q12 is turned off, and power is not supplied from the storage battery E to the motor M1. Do not drive.

Further, when the microcomputer 31 does not detect the voltage value based on the combined resistance value of the resistor R21 and the resistor R23 from the operating means 21, the microcomputer 31 detects the voltage value from the operating means 21 and sets the stop switch 20a. Is determined. The microcomputer 31 operates the stop switch 20a to set the resistance R21 from the operating means 21.
When the voltage value due to the combined resistance value of the resistor R22 and the microcomputer R31 is detected, the microcomputer 31 outputs a low level to the driving unit 37, the base current does not flow through the transistor Q3, the transistor Q3 turns off, and the base current of the transistor Q4 decreases. And the transistor Q4 turns off. This transistor Q4
As a result, the gate voltage disappears, the field effect transistor Q5 is turned off, the electric blower M is not supplied with electric power from the storage battery E, the electric blower M is stopped, and the apparatus enters a standby state for the next setting operation. Further, the microcomputer 31 outputs a low level to the transistor Q11, the base current does not flow through the transistor Q11, the transistor Q11 turns off, the base current stops flowing through the transistor Q12, the transistor Q12 turns off, and the motor M1 stops.

The electric blower M is stopped to complete the cleaning, and the hose 11 is connected to the cleaner main body 1 in order to clear the vacuum cleaner.
If you remove from, voltage V _P of the non-inverting input terminal of the operational amplifier OP1
There is lower than the voltage V ₃ of the inverting input terminal (V _P <V _3),
The control means 32 determines that it is not in a state to be cleaned, and performs control to stop supplying power from the microcomputer power supply unit 35 to the microcomputer 31.
In the power saving mode, which is a standby power mode close to the self-discharge state of the storage battery E, thereby suppressing the consumption of charging power.

In the embodiment shown in FIGS. 7 and 8, similarly to the embodiment shown in FIGS. 1 to 4, and the embodiment shown in FIGS. 5 and 6, a power switch and the like are separately provided. Instead, only by connecting the hose 11 at the start of cleaning and removing the hose 11 at the end of cleaning, power is supplied to the microcomputer 31 at the time of cleaning, and the hose 11 is supplied from the main body suction port of the cleaner body 1. Prevention of power consumption by the microcomputer 31 in a state where the microcomputer 31 does not come off and is not cleaned, that is, switching between the cleaning state and the power saving mode can be easily performed, the usability is good, and the workability can be improved.

Since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Next, still another embodiment of the present invention will be described with reference to FIG.

The embodiment shown in FIG. 9 is different from the embodiment shown in FIGS. 7 and 8 in that the power supply to the microcomputer 31 is cut off when the hose 11 is not connected. In this state, the power supply to the microcomputer 31 is cut off in the disconnected state.

That is, the embodiment shown in FIG.
And a constant voltage supply Vcc of 5 V, for example, connected to the connector 12a in the embodiment shown in FIG.
The connector 12b is connected to the microcomputer 31.

The connector 12b is connected to the connector 12b shown in FIGS.
As in the embodiment shown in FIG. 19, grounding is performed via a resistor R30, and the non-inverting input terminal of the operational amplifier OP1 is connected. The connector 12c is connected to the collector of the transistor Q12.

Further, a resistor R40 is connected between the emitter and the collector of the transistor Q12. Note that the resistance value of the resistor R40 is a large resistance value that does not drive the motor M1 even when a voltage is applied from the storage battery E to the motor M1 of the suction port 18 via the resistor R40.

Further, a resistor R34 connected between the terminal pins 15b and 15c of the hose body 14 in the embodiment shown in FIGS. 7 and 8 is connected between the connectors 24a and 24c of the suction port body 18.

In the embodiment shown in FIGS. 7 and 8,
V of microcomputer 31 in _RTerminals and micro
The connection between the connection point of the computer 31 and the capacitor C3
The connected diode D1 is not connected.

Then, in the embodiment shown in FIG.
And connect the connection pipe 15 of the hose 11 to the main body suction port of the suction part 12
Connect the suction port body 18 via the extension pipe 17 as appropriate, and wait for cleaning.
It is in the state of the machine. In this cleaning standby state,
A resistor R34 is connected between the connectors 12c and 12d to form a closed circuit
Is done. And a resistor R34 is provided between the connectors 12c and 12d.
By being connected, the storage battery E is connected to the resistor R40 and the resistor.
Voltage is applied to the non-inverting input terminal of the operational amplifier OP1 via the anti-R34.
Applied. This allows the operational amplifier OP1
Inverting input terminal voltage V_PIs the voltage V at the inverting input terminal_ThreeHigher
(V_P> V _Three), Internal switch OPS of operational amplifier OP1
W1 opens. The internal switch OPSW1 of this operational amplifier OP1
Is opened, the output terminal of the operational amplifier OP1
High level output, the base of transistor Q2
Becomes a bell, base current flows, and transistor Q2 turns on
I do. By turning on the transistor Q2, the transistor
The base current of Q1 flows and transistor Q1 turns on. So
When the transistor Q1 turns on, the microcomputer
Supply power from the power supply unit 35 to the microcomputer 31
Control.

Here, the electric wire 11c of the hose 11 is disconnected, the suction port 18 is not securely connected to the grip 19 of the hose 11 via the extension pipe 17, or the connection pipe 15 of the hose 11 is not connected.
Is not securely connected to the suction section 12 and the connector 12 of the suction section 12
When the connectors 24a and 24c of the suction port body are not electrically connected to c and 12d, that is, when the suction port body 18 is electrically disconnected from the suction unit 12, the non-inverting input terminal of the operational amplifier OP1 is and the voltage V _P becomes lower than the voltage V ₃ of the inverting input terminal (V _P <V _3), internal switch OPSW1 the operational amplifier OP1 are closed. When the internal switch OPSW1 of the operational amplifier OP1 is closed, a low level is output from the output terminal of the operational amplifier OP1 without being output from the output terminal of the operational amplifier OP1. Transistor Q2 is turned off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. When the transistor Q1 is turned off, control is performed to cut off power from the microcomputer power supply unit 35 to the microcomputer 31.

Then, in a cleaning standby state in which the hose 11 is connected to supply power to the microcomputer 31 and wait for a setting operation of the operating means 21, the electric blower is appropriately operated by operating the operating means 21 of the holding portion 19 of the hose 11. M and electric motor
Drive M1 to clean. That is, by the setting operation of the operating means 21, the voltage from the constant voltage supply source Vcc is appropriately converted by the operating means 21 and read by the microcomputer 31, and the electric blower M and the electric motor M1 are appropriately operated based on the read voltage values. Drive.

According to the configuration shown in FIG. 9, similarly to the embodiment shown in FIGS. 7 and 8, connection of the suction port 18 at the start of cleaning and cleaning of the Only by removing the suction port body 18 at the end of the cleaning, the power supply to the microcomputer 31 at the time of cleaning is performed, and the microcomputer 31 in a state in which the suction port body 18 is detached from the main body suction port of the cleaner body 1 and is not cleaned. , The switching between the cleaning state and the power saving mode can be easily performed, the usability is good, and the workability can be improved.

Since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

In the structure shown in FIG.
Without connecting the suction port body 18 directly to the suction part 12 without connecting
Since the same operation is obtained even when the connection is made through the extension pipe 17, the upright is not limited to the canister-type vacuum cleaner connected through the hose 11, but is connected to the suction port body 18 through the extension pipe 17. It can also be applied to a vacuum cleaner of a type or a handy type vacuum cleaner connected directly.

Next, still another embodiment of the present invention will be described with reference to FIG.

The embodiment shown in FIG. 10 is similar to the embodiment shown in FIG.
In the embodiment shown in FIG.
Does not provide a configuration for determining the connection and disconnection states of the hose 11 by comparing the voltage values.

That is, in the embodiment shown in FIG. 10, the connector 12b is grounded via the resistor R30 and the resistor R7
Is connected to the base of the transistor Q2 via

In the embodiment shown in FIG. 10, the connection pipe 15 of the hose 11 is connected to the main body suction port of the suction section 12, and the suction port body 18 is connected via the extension pipe 17 as appropriate. State. In the cleaning standby state, the resistance 21 of the operating means 21 is connected between the connectors 12a and 12b, thereby forming a closed circuit. Then, the base current based on the voltage from the constant voltage source Vcc via the resistor R9 is applied to the transistor Q2.
And the transistor Q2 is turned on. When the transistor Q2 is turned on, the base current of the transistor Q1 flows and the transistor Q1 is turned on. Then, when the transistor Q1 is turned on, control is performed to supply power from the microcomputer power supply unit 35 to the microcomputer 31.

Here, the electric wire 11a of the hose 11 is disconnected, or the connection pipe 15 of the hose 11 is not securely connected to the suction section 12, and the terminal pins 15a and 15b of the connection pipe 15 are connected to the connector of the suction section 12.
When the hose 11 that is not connected to 12a and 12b is electrically disconnected, the connection between the connectors 12a and 12b is opened and the base current of the transistor Q2 disappears, and the transistor Q2
Turns off. By turning off the transistor Q2, the base current of the transistor Q1 does not flow and the transistor Q1 turns off. Then, when the transistor Q1 is turned off,
Control is performed to cut off power from the microcomputer power supply unit 35 to the microcomputer 31.

Then, in a cleaning standby state in which the hose 11 is connected to supply power to the microcomputer 31 and wait for a setting operation of the operating means 21, the electric blower is appropriately operated by operating the operating means 21 of the gripping portion 19 of the hose 11. M and electric motor
Drive M1 to clean.

According to the configuration shown in FIG. 10, similarly to the embodiment shown in FIG. 7 and FIG. 8, the connection of the hose 11 at the start of cleaning and the Supply of power to the microcomputer 31 at the time of cleaning only by removing the hose 11, and prevention of power consumption by the microcomputer 31 in a state where the hose 11 does not come off from the main body suction port of the cleaner body 1 and is not cleaned. In other words, switching between the cleaning state and the power saving mode can be easily performed, the usability is good, and the workability can be improved.

Since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Further, according to the configuration shown in FIG. 10, the operational amplifier OP1 becomes unnecessary, the circuit configuration can be simplified, the manufacturability can be improved, and the cost can be reduced.

Next, still another embodiment of the present invention will be described with reference to FIG.

The embodiment shown in FIG. 11 is similar to the embodiment shown in FIG.
In the embodiment shown in FIG.
A connection switch 55 that closes when the connection pipe 15 is electrically and mechanically connected to the suction section 12 of the cleaner body 1 is disposed on the connection pipe 15. That is, the connection switch 55 is connected in series to the resistor R21 connected between the terminal pins 15a and 15b of the hose 11 of the embodiment shown in FIGS.

In the embodiment shown in FIG. 11, the connection pipe 15 of the hose 11 is connected to the main body suction port of the suction section 12, and the suction port body 18 is connected via the extension pipe 17 as appropriate. State. In this cleaning standby state, the terminal pin 15
When the connection pipes 15a and 15b are electrically connected to the connectors 12a and 12b and the connection pipe 15 is securely inserted into the suction section 12 and connected mechanically, the connection switch 55 is closed. And
Due to the mechanical and electrical connection of the connection pipe 15, the resistor 21 of the operating means 21 is connected between the connectors 12a and 12b, thereby forming a closed circuit. As a result, a base current based on the voltage from the constant voltage supply source Vcc is supplied to the base of the transistor Q2 via the resistor R9, and the transistor Q2 is turned on. When the transistor Q2 turns on, the transistor Q1
Transistor Q1 is turned on. Then, when the transistor Q1 is turned on, control is performed to supply power from the microcomputer power supply unit 35 to the microcomputer 31.

Here, the electric wire 11a of the hose 11 is disconnected, the connection pipe 15 of the hose 11 is not securely connected to the suction portion 12, the connection switch 55 is opened, or the terminal pin 15 of the connection pipe 15 is opened.
a and 15b are not connected to the connectors 12a and 12b of the suction unit 12. If the hose 11 is electrically disconnected, the connector
The connection between 12a and 12b is opened, the base current of the transistor Q2 disappears, and the transistor Q2 is turned off. This transistor
By turning off Q2, the base current of transistor Q1 does not flow and transistor Q1 turns off. And transistor Q1
Is turned off, control to cut off the power from the microcomputer power supply unit 35 to the microcomputer 31 is performed.

Then, in the cleaning standby state in which the hose 11 is connected and the microcomputer 31 is supplied with electric power and waits for the setting operation of the operating means 21, the electric blower is appropriately operated by operating the operating means 21 of the holding portion 19 of the hose 11. M and electric motor
Drive M1 to clean.

According to the configuration shown in FIG. 11, similarly to the embodiment shown in FIGS. 7 and 8, the connection of the hose 11 at the start of cleaning and the completion of Supply of power to the microcomputer 31 at the time of cleaning only by removing the hose 11, and prevention of power consumption by the microcomputer 31 in a state where the hose 11 does not come off from the main body suction port of the cleaner body 1 and is not cleaned. In other words, switching between the cleaning state and the power saving mode can be easily performed, the usability is good, and the workability can be improved.

Further, since there is no need to provide a power saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Further, according to the configuration shown in FIG. 11, the connection switch 55 allows the mechanical and electrical connection and disconnection of the connection pipe 15 to be reliably recognized.
15 secure connections are obtained.

Next, still another embodiment of the present invention will be described with reference to FIG.

In the embodiment shown in FIG. 12, the connection switch 55 of the embodiment shown in FIG. 11 is connected to the configuration of the embodiment shown in FIG. 10 between the connectors 24a and 24c of the suction port 18. Connected in series to a resistor R34.

In the embodiment shown in FIG. 12, similarly to the embodiment shown in FIG. 10 and the embodiment shown in FIG. 11, the hose 11 at the start of cleaning is not provided without separately providing a power switch or the like. Power supply to the microcomputer 31 at the time of cleaning only by disconnecting the hose 11 at the end of the connection and cleaning, and the microcomputer 31 in a state where the hose 11 does not come off from the main body suction port of the cleaner body 1 and is not cleaned. , The switching between the cleaning state and the power saving mode can be easily performed, the usability is good, and the workability can be improved.

Further, since there is no need to provide a power saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Also, as in the embodiment shown in FIG.
The operational amplifier OP1 becomes unnecessary, and the circuit configuration can be simplified.
Manufacturability can be improved and costs can be reduced.

Further, similarly to the embodiment shown in FIG. 11, the connection switch 55 allows the mechanical and electrical connection and disconnection of the connection pipe 15 to be reliably recognized, so that the connection pipe 15 can be securely connected during cleaning. Connection is obtained.

Next, still another embodiment of the present invention will be described with reference to FIG.

In the embodiment shown in FIG. 13, the connection switch 55 of the embodiment shown in FIG. 11 is connected to the configuration of the embodiment shown in FIG. 9 between the connectors 24a and 24c of the suction port 18. Connected in series to a resistor R34.

Also, in the embodiment shown in FIG. 13, similarly to the embodiment shown in FIG. 9 and the embodiment shown in FIG.
Only by connecting the suction port body 18 at the start of cleaning and removing the suction port body 18 at the end of cleaning, power is supplied to the microcomputer 31 at the time of cleaning, and suction is performed from the main body suction port of the cleaner body 1. Prevention of power consumption by the microcomputer 31 in a state in which the mouth body 18 is not removed and not cleaned, that is, switching between the cleaning state and the power saving mode can be easily performed, the usability is improved, and the workability can be improved.

Since there is no need to provide a power-saving switch such as a power switch, it is easy to manufacture, the manufacturability can be improved, and the cost can be reduced.

Further, similarly to the embodiment shown in FIG.
Applicable to upright and handy vacuum cleaners.

Further, similarly to the embodiment shown in FIG.
The connection switch 55 allows the mechanical and electrical connection and disconnection of the suction port 18 to be reliably recognized, and secure connection of the suction port 18 during cleaning can be obtained.

In each of the above embodiments, the description has been made using the cyclone type configuration in which the absorbed dust is separated and captured from the air by centrifugal force and the weight of the dust.
The present invention can also be used for a vacuum cleaner that captures dust by filtering using a dust collecting bag, and is applicable not only to a canister-type vacuum cleaner but also to an upright type or a handy type.

Although the storage battery E is used as the battery, a configuration driven by a dry battery or a configuration using a commercial AC power source as a power source can also be applied since energy saving in the power saving mode can be obtained.

The suction port body 18 may be of any type, such as a type without a rotary cleaning body, a type without a motor M1 and a rotary cleaning body that rotates by suction air.

[0126]

According to the first aspect of the present invention, when the hose is not connected to the main body of the cleaner, the power supply is controlled by the power cutoff unit so that the supply of power is stopped. Supplying power to the integrated circuit during cleaning by simply connecting the hose and removing the hose at the end of cleaning, and power consumption by the integrated circuit when the hose is not cleaned by removing the hose from the suction port of the cleaner body Can be easily prevented.

According to the second aspect of the invention, when the suction opening is not connected to the main body of the cleaner, the power supply cutoff unit controls the supply of power to the integrated circuit to be stopped. Supplying power to the integrated circuit at the time of cleaning, and removing the suction port from the suction port of the main body of the vacuum cleaner only by connecting the suction port at the start of cleaning and removing the suction port at the end of cleaning Power consumption of the integrated circuit in a state where cleaning is not performed can be easily prevented.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of a vacuum cleaner according to the present invention.

FIG. 2 is a perspective view showing the electric vacuum cleaner.

FIG. 3 is a flowchart showing an operation of the electric vacuum cleaner.

FIG. 4 is a waveform chart showing an operation of the electric vacuum cleaner. (a) Waveform diagram of voltage value read by operational amplifier OP1 (b) Waveform diagram showing state of detecting insertion / non-insertion of hose (c) Waveform diagram showing power supply state to microcomputer (d) Operating means Waveform diagram showing the setting operation of the stop switch (e) Waveform diagram showing the setting operation of the weak setting switch of the operating means (f) Waveform diagram showing the setting operation of the strong setting switch of the operating means

FIG. 5 is a circuit diagram showing another embodiment of the vacuum cleaner of the present invention.

FIG. 6 is a waveform chart showing an operation of the electric vacuum cleaner. (a) Waveform diagram of voltage value read by operational amplifier OP1 (b) Waveform diagram showing state of detecting insertion / non-insertion of hose (c) Waveform diagram showing power supply state to microcomputer (d) Operating means Waveform diagram showing the setting operation of the stop switch (e) Waveform diagram showing the setting operation of the weak setting switch of the operating means (f) Waveform diagram showing the setting operation of the strong setting switch of the operating means

FIG. 7 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

FIG. 8 is a waveform chart showing an operation of the electric vacuum cleaner. (a) Waveform diagram of voltage value read by operational amplifier OP1 (b) Waveform diagram showing state of detecting insertion / non-insertion of hose (c) Driving state of motor by setting operation of strong setting switch of operating means (D) Waveform diagram showing power supply status to microcomputer

FIG. 9 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

FIG. 10 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

FIG. 11 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

FIG. 12 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

FIG. 13 is a circuit diagram showing still another embodiment of the vacuum cleaner of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 11 Hose 18 Suction port 21 Operating means 31 Microcomputer which is an integrated circuit 32 Control means 35 Microcomputer power supply 38 Microcomputer power cutoff as power cutoff M Electric blower

Claims (2)

[Claims] 1. A cleaner main body that houses an electric blower and communicates with the suction side of the electric blower to open a main body suction opening; a hose having one end connected to the main body suction opening of the cleaner main body; Operating means for setting a driving state of the electric blower, an integrated circuit for controlling the driving state of the electric blower in accordance with the setting of the operating means, and the hose being provided at a main body suction port of the cleaner body. A controller having a power cutoff unit for stopping supply of power to the integrated circuit in a connected state. 2. A main body of a vacuum cleaner which houses an electric blower and communicates with an intake side of the electric blower to open a main body suction opening; A suction port body connected to the suction port so as to communicate with the suction port, operating means for setting a driving state of the electric blower, and integrated control for controlling a driving state of the electric blower in accordance with the setting of the operating means Control means having a power cutoff unit for stopping supply of power to the integrated circuit in a state where the circuit and the suction port body are disconnected from the main body suction port of the cleaner body. Vacuum cleaner.