JPH0788059A - Central cleaner - Google Patents

Abstract

PURPOSE:To reduce the number of wiring from a main body to an outlet in order to make the construction easy to execute by inserting a power from a transmission section to the feeding cable between the main body and the outlet, by controlling the feeding power to a fan motor using a high-frequency signal by a power control section via the main body signal receiving section and the main body control section, and by transmitting the control signal to a control section near at hand. CONSTITUTION:A pair of feeding cables 9 is connected to the relay feeding cable inside a bellows horse 7 at horse outlets 2a and 2b, and a main body control section 11 controls a fan motor 12 with a power control section 13. A control section near at hand 21 can be used to insert a high-frequency signal which controls the main body 1 into the pair of feeding cables 9. A signal is transmitted from a power transmission section 15 to the feeding cables 9, and a main body signal receiving section 19 receives the high-frequency signal inserted into the feeding cables 9 and input this signal to the main body control section 11. The control section near at hand 21 controls a control section 5 which controls a power nozzle 22 to rotate a power nozzle motor 25. A result is that there are two wirings between the main body 1 and the outlet 2a (or 2b) which makes the construction easy to execute.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a central cleaner which can be cleaned only by connecting a hose to an insertion port arranged in advance on a wall or floor of each room.

[0002]

2. Description of the Related Art The structure of a conventional central cleaner will be described with reference to FIG. Reference numeral 101 denotes a central cleaner main body, and the dust collecting chambers built in the central cleaner main body 101 are connected with pipes 103 to insertion ports 102a and 102b of hoses attached to the walls and floors of the respective rooms. Reference numeral 104 is a hand hose inserted by the user into the insertion port 102a. The hand hose 104 is a bellows hose 107 provided with a relay power supply line that connects an operation unit 105 operated by a user, a floor nozzle 106 that is a dust suction port, and a terminal of the insertion port 102a to an internal circuit of the hand hose 104. Is equipped with. Between the bellows hose 107 and the floor nozzle 106, an extension pipe 108 having a relay power supply line is used. Further, 109 is a cable having two pairs of electric wires, and the main body 101 and each insertion port 102
It connects between a and 102b.

FIG. 6 is a circuit diagram for connecting the main body 101 and the hand hose 104. Reference numeral 110 denotes a fan motor included in the main body 101, which is supplied with power from the power control unit 111b. Reference numeral 111a is a main body control unit, and a hose 1 at hand
04 is connected to the operation unit 105 by a cable 109a. In other words, receiving the signal from the operating unit 105,
The power control signal is output to the power control unit 111b. Reference numeral 112 denotes a commercial power source, which is the fan motor 110.
Power is supplied to the power control unit 111b and the power transmission unit 113.
Further, the power transmission unit 113 steps down the commercial power supply to 30V and supplies it to the power supply unit 116 included in the operation unit 105. The power supply unit 116 converts the 30V power received from the power transmission unit 113 into a 5V DC power and supplies it to the slide volume 117 attached to the operation unit 105. In the slide volume 117, the fixed terminal 117b is connected to the output of the power supply section 116, the other end 117c is connected to the common line of the output of the power supply section 116, and the sliding section 117a is connected to the input of the voltage controlled oscillator 118. The output of the voltage controlled oscillator 118 is connected to the main body control unit 111a included in the main body 101 by a cable 109a. Also,
Reference numeral 119 denotes a power nozzle motor provided in the floor nozzle 106, and on / off of rotation is controlled by opening / closing a switch 120 provided in the operation unit 105.

Next, the operation will be described. When the user connects the hand hose 104 to the insertion port 102a or 102b and operates the slide volume 117 of the operation unit 105 provided on the hand hose 104, the fan motor 1
Cleaning can be started by starting 10 rotations. That is, the sliding portion 117a of the slide volume 117 is fixed to the fixed terminal 117b.
When moving to the side, the output voltage of the slide volume 117 gradually increases from 0V. Therefore, the voltage controlled oscillator 118 oscillates a frequency proportional to this input voltage, and the main body control section 111a receiving this high frequency signal outputs a signal corresponding to this frequency to the power control section 111b. In this way, the fan motor 110 is supplied with constant electric power and starts rotating. In this state, the operation unit 10
When the switch 120 of No. 5 is closed, power is supplied from the power transmission unit 113 of the main body 101 via the cable 109b and the connection terminal of the insertion port 102, and the power nozzle motor 11
9 also starts rotation.

[0005]

SUMMARY OF THE INVENTION The conventional central cleaner described above has a slot 102a which is simply provided in a room.
-Only by connecting the hand hose 104 to 102b, cleaning is possible without transporting the main body, which is very convenient. However, the conventional structure has a large number of wires between the main body 101 and the insertion ports 102a and 102b, and thus the workability is extremely poor. Further, the power nozzle motor 119 has a large change in power supply current depending on the type of load, and therefore the power supply voltage to the power supply unit 116 of the hand hose 104 also changes under this influence.

The present invention is intended to solve the problems of the conventional structure as described above, and simplifies the wiring between the main body and each insertion port to improve workability and reduce the load on the power nozzle. It is a first object of the present invention to provide a central cleaner that can supply a stable voltage to the power receiving portion of the hand hose even if it changes.

A second object of the present invention is to provide a central cleaner having a function of limiting the supply current so that the load current does not flow too much when the power nozzle motor is locked.

[0008]

The first means of the present invention for achieving the first object is to provide a main body having a fan motor and a dust collecting chamber, and a plurality of insertion ports installed on a wall, floor or the like. A pipe for connecting the insertion port to the dust collecting chamber of the main body, a hand hose detachably inserted into the insertion port, and a pair of power supply lines connecting the main body and the insertion port. The main body determines the output of the fan motor by receiving information from the power transmission section that superimposes a power source on the power supply line, the main body signal reception section that receives and demodulates the high frequency signal that is superimposed on the power supply line, and the main body signal reception section. And a power control unit that controls the power supplied to the fan motor by a signal from the main body control unit, and the hose at hand is a hand control unit,
An operation unit that receives an operation for turning on and off the fan motor and adjusts the suction force and transmits this operation signal to the hand control unit, a power receiving unit that receives power from the power transmitting unit via the power supply line, and a floor nozzle. Is a central cleaner having a power nozzle control unit for controlling energization to the power nozzle motor included in.

The second means of the present invention for attaining the second object is that in addition to the constitution of the first means of the present invention, the hand control section of the hand hose supplies the power nozzle motor to the power nozzle motor by the voltage detection section. It is a central cleaner that monitors the voltage and turns off the circuit when an abnormality occurs.

[0010]

According to the first means of the present invention, the hand information transmitting section acts so as to superimpose various high frequency signals for controlling the fan motor of the main body on the power supply line, and also has an insertion port for connecting the hand hose. By modifying the wiring that connects between the hand hoses, the number of wires between the main body and the insertion port has been reduced to improve workability, and even if the load on the power nozzle changes, the power receiving section of the hand hose is stable. It is something that voltage can reach.

A second means of the present invention is such that the voltage detection section detects an abnormality such as locking of the power nozzle motor, and the hand control section operates so as to turn off the circuit.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the first means of the present invention will be described below with reference to FIGS. In FIG. 1 showing the overall configuration of the present embodiment, reference numeral 1 denotes a central cleaner body, which is provided with a dust collection chamber 10. 2a and 2b are the outlets of the hose attached to the wall or floor of each room,
It is provided with a terminal for connecting the pair of power supply lines 9 from the main body 1 and the relay power supply line in the bellows hose 7. Reference numeral 3 is a pipe for sending the dust sucked from the insertion ports 2a and 2b to the dust collecting chamber 10 in the main body 1. Reference numeral 4 is a hand hose that can be detachably inserted into the insertion port 2a or 2b. The hand hose 4 includes an operation unit 5 operated by a user, a floor nozzle 6 as a dust suction port, and a bellows hose 7. An extension pipe 8 is used between the bellows hose 7 and the floor nozzle 6.

FIG. 2 is a circuit diagram of the main body 1 and the hand hose 4. Reference numeral 11 denotes a main body control unit provided in the main body 1, which controls the fan motor 12 by controlling an electric power control unit 13 using a triac. The electric power control unit 13 adjusts the electric power supplied to the fan motor 12 by phase control, and starts its operation in response to a TRIAC firing pulse signal from the main body control unit 11. 1
5 is a pair of power supply lines 9 for reducing the commercial power supply 14 to 30V.
It is a power transmission unit that transmits power to. Reference numeral 19 denotes a main body signal reception unit that receives the high frequency signal superimposed on the power supply line 9 and inputs it as digital information to the main body control unit 11.

The hand hose 4 has the following parts. Reference numeral 21 is a hand control unit, and 22 is a power nozzle control unit that drives a power nozzle motor 25 of the floor nozzle 6 according to an instruction from the hand control unit 21. That is, the hand control unit 21
When the operation unit 5 receives the ON operation of the power nozzle, it outputs a signal to the power nozzle control unit 22 to supply power to the power nozzle motor 25 and rotate the power nozzle motor 25.
In addition, 24 is the AC voltage received from the pair of power supply lines 9,
This is a power receiving unit that creates a DC stabilized voltage of 5 V and supplies it to the circuit inside the hose at hand. Reference numeral 26 is a first relay wire passing through the bellows hose 7. When one end of the bellows hose 7 is inserted into the insertion port 2a or 2b, it is connected to an electrode provided in the insertion port 2a or 2b. There is. That is, a terminal connected to the electrode provided in the insertion port 2a or 2b is provided at the end of the bellows hose 7, and this terminal and the power receiving section 24 are connected by the first relay wire 26. Is. Reference numeral 27 is a second relay wire that passes through the bellows hose 7, and is also connected to the electrode on the side of the plug 2a or 2b when one end of the bellows hose 7 is inserted into the plug 2a or 2b. is there. The other end of the second relay line 27 is connected to the power nozzle motor 25 via the power nozzle control unit 22 through the extension pipe 8. Reference numeral 28 is a hand information transmission unit, which modulates the digital information output from the hand control unit 21 with a high frequency and superimposes it on the pair of power supply lines 9 via the first relay line 26.

The operation of this embodiment will be described below. In the present embodiment, the hand control unit 21 is configured to send digital information modulated at high frequency to the main body control unit 11 via a pair of power supply lines 9. For example, the reference numeral 001 for turning on the main body 1, the reference numerals 001 to 011 for controlling the suction force of the fan motor 12 of the main body 1, the main body 1
If the operation stop of 100 is defined as 100, the hand control unit 21
Therefore, a high frequency signal for controlling the operation of the main body 1 can be superimposed on the pair of power supply lines 9.

In addition, the load becomes heavy and the power is increased as follows.
Current consumption I of the nozzle motor 25₂Has become very large
Also, the one of this embodiment can operate stably.
Of. FIG. 3 shows an equivalent circuit of the hand hose 4 of this embodiment.
Shows. 26a and 26b have the first relay line 26
The equivalent resistance is 10 Ω. Similarly 27a
And 27b are electric resistances of the second relay wire 27.
And both are 3Ω. Electrode of insertion port 2a or 2b
In between, the power supply voltage V from the power transmission unit 15 of the main body 1₀(= 30
V) is being applied. Power nozzle control unit 22 is closed
Then, V is applied to the power nozzle motor 25.₂V is applied
It This supply voltage V₂Is the power nozzle motor 25
Cost current I₂Is 3A, 30- (3 + 3) × 3 = 12 (V)
Become. On the other hand, the hand controller 21 and the hand information transmitter 28T
Together I₁If you consume (= 0.1A),
Power receiving voltage V applied to the power receiving unit 24₁Is 30- (10 + 1
It becomes 0) × 0.1 = 28 (V). Therefore, the load becomes heavy and power is increased.
-Current consumption I of the nozzle motor 25 ₂Becomes very large
Even if the voltage drops, the power nozzle motor 25 is marked.
Applied voltage V₂And is applied to the power receiving unit 24 only
Voltage V₁Is not affected and is stably supplied with 28V.

As described above, according to this embodiment, there are two wirings between the main body 1 and the insertion port 2a or 2b,
Since the number of wires is smaller than the conventional one, the workability is greatly improved. Further, even if the load of the power nozzle changes, a stable voltage reaches the power receiving portion 24 of the hand hose, and a highly reliable central cleaner with stable operation can be obtained.

Next, an embodiment of the second means of the present invention will be described with reference to FIG. In this embodiment, the voltage detection unit 2 that detects the voltage applied to the power nozzle motor 25.
9 is provided. That is, the voltage detection unit 29 is connected to the second relay line 27, and the output is connected to the hand control unit 21.

Next, the operation will be described. If the power nozzle motor 25 is locked for some reason, the circuit will be short-circuited and the current consumption will be 30 ÷ (3 + 3) = 5 (A)
Therefore, it becomes much larger than the normal value of 3 A, and if left unattended, it becomes a dangerous state. In this embodiment, in order to avoid this situation, the voltage detection unit 29 is provided. In the above state, the detection voltage of the voltage detection unit 29 is 0V, and when the hand control unit 21 recognizes that the detection voltage of the voltage detection unit 29 is 0V, the power nozzle control unit 22 is operated to open. To do. That is, the current flowing through the circuit is cut off.

As described above, according to this embodiment, the supply current can be limited so that the load current does not flow too much when an abnormality occurs such as when the power nozzle motor 25 is locked.

[0021]

The first means of the present invention is to provide a main body having a fan motor and a dust collection chamber, a plurality of insertion ports installed on a wall, floor, etc., and the insertion ports and the dust collection chamber of the main body. And a pair of power supply lines connecting the main body and the insertion port, the main body superimposing a power source on the power transmission line. Section, a main body signal receiving section that receives and demodulates a high frequency signal superimposed on the power supply line, a main body control section that receives information from the main body signal receiving section and determines the output of the fan motor, and a signal from the main body control section. The hose at hand has a power control unit for controlling the power supplied to the fan motor, and the hand hose receives the operation for controlling the on / off of the fan motor and the suction force, and the operation signal to the hand control unit. And the operation unit that conveys As a configuration including a power receiving unit that receives power from the power transmitting unit via the power feeding line and a power nozzle control unit that controls energization to a power nozzle motor included in the floor nozzle, a power nozzle between the main body and the insertion port. It realizes a central cleaner that reduces the number of wires and has good workability, and that a stable voltage reaches the power receiving part of the hose at hand even if the load of the power nozzle changes.

In addition to the configuration of the first means of the present invention, the second means of the present invention is such that the hand control section of the hand hose monitors the supply voltage to the power nozzle motor by the voltage detection section, and when there is an abnormality, the circuit As a configuration for turning off, the circuit can be turned off in the event of an abnormality to realize a safe central cleaner.

[Brief description of drawings]

FIG. 1 is a perspective view showing the external appearance of a central cleaner that is an embodiment of the first means of the present invention.

[Fig. 2] Circuit configuration diagram of the central cleaner

FIG. 3 is an explanatory view of the operation of the central cleaner.

FIG. 4 is a connection diagram of a hand hose of a central cleaner which is an embodiment of the second means of the present invention.

FIG. 5 is a perspective view showing the appearance of a conventional central cleaner.

FIG. 6 is a circuit configuration diagram of a conventional central cleaner.

[Explanation of symbols]

 1 Main Body 2 Insertion Port 3 Piping 4 Hand Hose 5 Operation Section 6 Floor Nozzle 9 Power Supply Line 11 Main Body Control Section 12 Fan Motor 13 Power Control Section 14 Commercial Power Supply 15 Power Transmission Section 19 Main Signal Receiving Section 21 Hand Control Section 22 Power Nozzle Control Section 24 Power Receiver 25 Power Nozzle Motor 26 First Relay Line 27 Second Relay Line 28 Hand Information Transmitter 29 Voltage Detector

Claims (2)

[Claims] 1. A main body having a fan motor and a dust collection chamber,
A plurality of outlets installed on the wall, floor, etc., piping connecting these inlets with the dust collection chamber of the main body, a hand hose detachably inserted into the inlet, and between the main body and the inlet A main body signal receiving unit for receiving and demodulating a high-frequency signal superimposed on the power supply line, and a main body signal receiving unit for transmitting power to the power supply line. The control unit has a main body control unit that determines the output of the fan motor in response to the information from the main unit, and a power control unit that controls the power supplied to the fan motor according to the signal from the main body control unit. An operating unit that receives an operation for turning on and off the fan motor and adjusts the suction force and transmits this operation signal to the hand control unit; and a power receiving unit that receives power from the power transmitting unit via the power supply line,
A central cleaner having a power nozzle control unit for controlling energization of a power nozzle motor of a floor nozzle. 2. The central cleaner according to claim 1, wherein the hand control unit of the hand hose monitors the supply voltage to the power nozzle motor by the voltage detection unit, and turns off the circuit when an abnormality occurs.