JP2003235258A - Control equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide control equipment which is free from foreign sound at on/off, too, excellent in durability, small-sized, simple in structure, and zero in power consumption at waiting. <P>SOLUTION: This control equipment, which is equipped with a transformer 16 for converting the input voltage by electromagnetic coupling and outputting it, a switch element 20 for turning on or turning off the input power, being connected to the input side of the transformer 16, a switching power controller 15 for turning on or turning off the switch element 20, according to the output power of the transformer 16, and a switching power source being equipped with an auxiliary power circuit part for continuing the supply of power to the switching power controller 15 after start of the switching power controller 15, has a generator 13 for converting the action at start of use of a user into power and a starting circuit 12 for supplying the switching power controller 15 with power thereby starting it, and this supplies the switching power controller 15 with the power generated by the generator 13 via the starting circuit 12. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device having a switching power supply that saves power by reducing power consumption during operation standby to zero.

[0002]

2. Description of the Related Art Conventionally, a power supply device using a commercial power supply such as a sanitary washing device has been required to have a standby power consumption of about 0.3 W. This is the power consumption caused by the loss of the transformer of the power supply circuit and the switching loss of the switching power supply circuit.

In a power supply device of an electric device, such as a sanitary washing device, which requires electric power only during use, power consumption during standby can be eliminated by turning on a power outlet of the power supply device or a main power switch before use. It is possible, but it is very inconvenient. Therefore, as a means for solving this, a structure has been devised in which the main power switch is mechanically turned on in association with the seating on the toilet seat at the start of use of the sanitary washing device.

On the other hand, as a cleaning toilet seat that does not require an external power source, there is one disclosed in Japanese Patent Laid-Open No. 5-192267. This is because the rotating shafts of the toilet seat and the toilet lid are connected to the speed increasing means via a one-way clutch, the power generating means is connected to the speed increasing means, and the power generating means is caused to generate electricity by closing the toilet seat and the toilet lid. The electric power is stored in the power storage means and used as the power source for the control means and the cleaning means. As described above, since the power supply required for the operation of the control means and the cleaning means is covered by the power generation by the closing operation of the toilet seat, the external power supply becomes unnecessary.

[0005]

However, in the above-mentioned conventional sanitary washing device, the commercial power source is directly turned on / off.
Since a mechanical switch for turning off is required, there are many problems such as current capacity and durability of the switch, large size of switch, complicated structure, and abnormal noise when the switch is turned on / off. Have a

Further, in the flush toilet seat disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-192267, the amount of power generation is small because the control means and the flush means are operated only by the power generation by closing the toilet seat and the toilet lid. The operation of the control means and the cleaning means is not performed as prescribed, and there is a problem that sufficient cleaning cannot be performed.

[0007] Therefore, the problem to be solved by the present invention is
Although the power supply is commercial power, by turning on / off the commercial power with a contactless switch with a small current capacity,
An object of the present invention is to provide a control device with no standby power consumption, which has no abnormal noise when turned on and off, has excellent durability, is small in size, and has a simple structure.

[0008]

In order to solve the above-mentioned problems, a control device of the present invention is a transformer for converting and outputting an input voltage by electromagnetic coupling, and an input power on / off connected to the input side of the transformer. A switching element to be controlled, a switching power supply control section that controls ON / OFF of the switching element according to the output power of the transformer, and power supply to the switching power supply control section is continued after the switching power supply control section is activated. In a control device having a switching power supply including an auxiliary power supply circuit unit, a power generation unit that converts an operation at the start of use of a user into electric power and a starting circuit unit that supplies electric power to the switching power supply control unit and starts the operation. The power generated by the power generation unit is supplied to the switching power supply control unit via the starting circuit unit.

As described above, by activating the switching power supply using the electric power generated by the power generation unit, the electric power for keeping the switching power supply in the ON state at all times becomes unnecessary.

By providing the generated power control circuit section for controlling the output voltage of the power generation section to a constant voltage, the voltage supplied to the starting circuit can be controlled to be constant even when the generated electric power is large. It is possible to prevent the destruction of other circuit elements.

Further, a use state detecting means for detecting a use state of the control device is provided, and when the use state detecting means detects that the control device is in an unused state, the auxiliary power supply circuit section controls the switching power supply. By providing the switching power supply ON / OFF means for shutting off the starting current to the unit and stopping the switching power supply, the power consumed by the switching power supply in the unused state can be reduced to zero.

The switching power supply ON / OFF means is
The switch may be a switch that short-circuits / interrupts an electric path that supplies power to the switching power supply control unit of the switching power supply.

The switching power source feeds back a voltage obtained by dividing the output voltage by a resistor,
The switching power supply on / off means turns off the switch element of the switching power supply by controlling the value of the voltage dividing resistor by the switching power supply control unit, and supplies power to the switching power supply control unit of the switching power supply. Can be stopped.

When the present invention is applied to a toilet device, the use state detecting means may be a toilet lid opening / closing detecting portion of the toilet device.

At this time, the toilet device includes a human body detecting means and an electric opening / closing device for closing the toilet lid by a motor. When the output of the human body detecting means outputs the human body non-detecting state, the motor is operated. The toilet lid may be closed.

When the present invention is applied to a dishwasher, the use state detecting means may be a wash item detecting means in the dishwashing machine.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> A first embodiment is one in which the control device of the present invention is applied to a toilet device and will be described with reference to FIGS. 1 is a block diagram showing the configuration of the present embodiment, FIG. 2 is a circuit diagram, FIG. 4 is an operation waveform diagram, and FIG. 5 is a flowchart.

In the figure, 1 is a toilet bowl, 2 is a toilet seat, 3 is a toilet lid when it is closed, 3'is a toilet lid when it is open, and 4 is a rotating shaft of the toilet lid 3. The control device includes a full-wave rectifier 14 connected to an AC power supply 10, a switching power supply unit 11, and a starting circuit unit 1.
2 and a power generation unit 13. Switching power supply unit 1
A load unit 21 such as a cleaning device and a main body control unit 24 for controlling the load unit 21 are connected to the output side of 1.

In FIG. 2 showing the details of each block, the switching power supply unit 11 uses a flyback type switching power supply in this example, and a switch connected to the transformer 16 and the primary winding 17 of the transformer 16. Element 20
And a switching power supply control unit 1 for PWM-controlling the switch element 20 according to the output voltage of the switching power supply unit 11.
It has 5 etc. The switch element 20 is an MO in this example.
The SFET (metal oxide semiconductor field effect transistor) is used, and the switching power supply control unit 1 is used for its gate.
5 is connected. Primary auxiliary winding 18 of transformer 16
Has a polarity opposite to that of the primary winding 17, and is connected to the power supply terminal Vccs of the switching power supply controller 15 via the diode D1. The output of the secondary winding 19 of the transformer 16 passes through the diode D2 and outputs the DC output Vcc to the main body control unit 2
4 and the load part 21. C1, C2 and C3 are smoothing capacitors.

FIG. 3 is a block diagram showing the configuration of the switching power supply controller 15. Switching power supply controller 15
Can be operated by the current supplied from the power supply terminal Vccs. The switching power supply controller 15 internally generates a reference voltage (5V), and the output voltage (Vc) of the switching power supply 11 fed back to this reference voltage is fed back.
c) is compared by the comparator 26, and when the reference voltage> the output voltage, the PWM output section 27 outputs a signal for turning on the switch element 20. As a result, the output voltage (Vcc) increases. On the contrary, when the reference voltage <the output voltage, the PWM output unit 27
Outputs a signal for turning off the switch element 20, and the output voltage (Vcc) drops. The PWM frequency is determined by the oscillator 28 built in the switching power supply controller 15.

Returning to FIG. 2, the power generation unit 13 generates power by the electromagnetic induction action of a magnet (not shown) attached to the rotary shaft 4 of the toilet lid 3 and the induction coil L1, and the induced electromotive force V1. Is rectified by the diode D3, and a current is passed to the light emitting portion (photodiode) side of the photocoupler PC1 forming the starting circuit unit 12. The collector of the phototransistor forming the light receiving portion of the photocoupler PC1 is connected to the connection point of the resistor R10, and the emitter is connected to the power supply terminal (Vccs) of the switching power supply controller 15.

Next, the operation of the first embodiment will be described with reference to FIGS. 4 and 5. First, the AC power supply 10 is turned on, and the photocoupler PC1 and the switching power supply control unit 15 are turned off. In this state, the switch element 20 is off and the collector-emitter of the photocoupler PC1 is off, so that the power consumption of the entire power supply unit is zero (step 100 in FIG. 5).

Next, when the toilet is used, both the toilet seat 2 and the toilet lid 3 are raised for men's urination, and the toilet seat 2 is left and only the toilet lid 3 is raised for men's stool and girls' stool. However, raise the toilet lid 3. Due to the rotation of the rotating shaft 4 at this time, the electromotive force V1 is applied to the induction coil L1 forming the power generation unit 13.
Is induced (see FIG. 4A), and when a certain threshold voltage Vth is exceeded, the output of the photocoupler PC1 is turned on (FIG. 4B, steps 110 and 120 in FIG. 5). Then, via the resistor R10, the collector of the photocoupler PC1
The startup current I1 is supplied to the power supply terminal of the switching power supply controller 15 via the emitter (step 130), and the switching power supply controller 15 is started (FIG. 4 (c), FIG. 5).
Step 140). As a result, the switching element 20 becomes PW
A pulsating current, which is M-controlled and PWM-controlled, flows through the primary winding 17.

A pulsating current flows in the primary winding 17 of the transformer 16 to induce an AC magnetic field in the iron core of the transformer 16, and a voltage is induced in the primary auxiliary winding 18 and the secondary winding 19 (FIG. 4 (d). ), (E), FIG. 5, step 150).

When the voltage induced in the primary auxiliary winding 18 is rectified by the diode D1 and smoothed by the capacitor C2, a DC voltage V2 is obtained, which supplies a current I2 to the switching power supply controller 15 (step 16).
0). Then, the electromotive force V1 from the power generation unit 13 becomes lower than the threshold value Vth, and the photocoupler PC of the starting circuit unit 12 is
Even if the current I1 from 1 is stopped, the switching power supply control unit 15 continues the activated state (FIGS. 4A and 4B).
(C), step 170 in FIG. 5).

In this way, the operation of opening the toilet lid 3 brings the switching power supply unit 11 which has been in the stopped state up to the activated state, and the activated state continues even after the toilet lid 3 is lifted and the electromotive force disappears. .

<Second Embodiment> A second embodiment will be described with reference to FIGS. 6 is a block diagram showing the configuration of this embodiment, FIG. 6 is a circuit diagram, FIG. 8 is a flowchart, and FIG.
Is an operation waveform diagram. In the present embodiment, a generated power control circuit section 22 is provided between the power generation section 13 and the starting circuit section 12 of the toilet device control device of the first embodiment, and other configurations are the same as those of the first embodiment. Since they are similar, the same numbers are assigned and the description is omitted.

The peak of electromotive force generated by the power generation unit 13 changes depending on the speed at which the toilet lid 3 is lifted. The circuit is designed so that the starting circuit unit 12 operates reliably even when the toilet lid 3 is slowly lifted, that is, even when the electromotive force generated by the power generation unit 13 is small. Power may be generated. Then, the circuit element of the starting circuit unit 12, especially the photocoupler PC1 may be destroyed. Therefore, the generated power control circuit unit 22 is provided so that the voltage applied to the startup circuit unit 12 does not exceed a certain level even if the electromotive force generated by the power generation unit 13 is high.

FIG. 7 shows a specific example of the configuration of the generated power control circuit section 22. That is, the output of the power generation unit 13 is connected to the collector of the transistor Tr1 whose emitter is grounded, the Zener diode ZD1 is connected between the base and collector of the transistor Tr1, and the resistor R11 is connected between the base and the emitter.
Is connected.

The operation of this circuit will be described with reference to FIGS. 8 and 9. Assuming that the zener voltage of the zener diode ZD1 is Vzd, the electromotive force V1 of the power generation unit 13 is [Vzd + Vb
When it is higher than e], the current Izd flows through the Zener diode ZD1 (steps 200 and 210 in FIG. 8). Then, the base current Ib is applied to the base of the transistor Tr1.
Flows, and the transistor Tr1 is turned on (steps 220 and 230). Thereby, the electromotive force V of the power generation unit 13
1 decreases to [Vzd + Vbe] (step 240).
Therefore, [Vzd +
The voltage above Vbe] is not applied, and there is no risk of the circuit element being destroyed. FIG. 9A shows the electromotive force V1 of the power generation unit 13 when the generated power control circuit unit 22 is not provided, and FIG.
Indicates the voltage suppression effect of the generated power control circuit unit 22. Thus, the maximum value V of the electromotive force V1 of the power generation unit 13
Even if max is large, the output V1 ′ of the generated power control circuit unit 22
Is suppressed below [Vzd + Vbe].

In the present embodiment, the generated power control circuit 22 may be simplified to form the generated power control circuit 22 'with only the Zener diode ZD as shown in FIG.

<Third Embodiment> A third embodiment will be described with reference to FIGS.
This will be described with reference to FIG. 11 is a block diagram showing the configuration of the present embodiment, FIG. 12 is a circuit diagram, FIG. 13 is a side view showing an example of mounting the toilet lid sensor, FIG. 14 is an explanatory view showing the output and operation of the toilet lid sensor, and FIG. Is an operation waveform diagram, and FIG. 16 is a flowchart.

In the present embodiment, the opening / closing of the toilet lid 3 of the second embodiment is detected, and the power consumed by the switching power supply unit 11 when the toilet is not used is made zero. Since the configuration is the same as that of the second embodiment, the same numbers are assigned and the description is omitted.

In this embodiment, the toilet lid opening / closing detecting section 23 is provided, and the main body control section 24 operates the switching power supply on / off control section 25 provided in the switching power supply section 11. Specifically, as shown in FIG. 13, the toilet lid opening / closing detector 23 attaches a magnet 23B to the base of the toilet lid 3 and attaches a toilet lid sensor 23A to the toilet bowl 1 side to open the toilet lid 3. First, the output of the toilet lid sensor 23A is changed from low level to high level. As the lid sensor 23A, a reed switch,
A magneto diode, a Hall element, etc. can be used. The switching power supply on / off control unit 25 can be configured by a relay RY1, and as shown in FIG. 12, the contact of the relay RY1 is connected to the emitter of the phototransistor of the photocoupler PC1 and the power supply terminal (Vccs) of the switching power supply control unit 15. It is installed between the connection point and the diode D1.

The operation of this embodiment will be described below with reference to FIGS. 15 and 16. When the power is turned on, the photocoupler PC1 is off, the relay RY1 is off, and the switching power supply controller 15 is off (step 30).
0).

Next, when the toilet lid 3 is raised to use the toilet bowl, the rotation of the rotary shaft 4 at that time induces an electromotive force V1 in the induction coil L1 constituting the power generation section 13 (see FIG. 15).
(See (a)), when a certain threshold voltage Vth is exceeded, the output of the photocoupler PC1 is turned on (FIG. 15 (b), FIG. 1).
6 steps 310, 320). Then, the activation current I1 is supplied to the power supply terminal of the switching power supply control unit 15 via the resistor R10 and the collector-emitter of the photocoupler PC1 (step 330), and the switching power supply control unit 15 is activated (FIG. 15 (e). ), FIG. 16 step 340). As a result, the switch element 20 is PWM-controlled, and a PWM-controlled pulsating current flows through the primary winding 17.

A pulsating current flows in the primary winding 17 of the transformer 16 to induce an AC magnetic field in the iron core of the transformer 16, and a voltage is induced in the primary auxiliary winding 18 and the secondary winding 19 (FIG. 15 (f ), (G), FIG. 5, step 350).

By inducing a voltage in the secondary winding 19,
DC voltage is output to the output of the switching power supply unit 11,
The main body control unit 24 also starts operation, and the main body control unit 24 turns on the relay RY1.

On the other hand, when the voltage induced in the primary auxiliary winding 18 is rectified by the diode D1 and smoothed by the capacitor C2, a DC voltage V2 is obtained, and the current I2 is supplied to the switching power supply controller 15 (step 3).
60).

After the toilet lid 3 is opened for a while, the electromotive force V1 of the power generator 13 becomes smaller than the threshold voltage Vth (FIG. 15 (a), step 370 in FIG. 16), and the photocoupler P
The phototransistor of C1 is turned off (Fig. 15).
(B), step 380 in FIG. 16, but the switching power supply controller 15 continues to operate with the current I2 from the voltage V2 induced by the primary auxiliary winding 18 (step 39).
0).

When the toilet lid 3 is closed after using the toilet bowl, the toilet lid sensor 23A detects the toilet lid 3 and the output turns to low level (FIGS. 15A and 15C, step 400 in FIG. 16). Then, the relay RY1 is turned off and the contacts are opened (FIG. 15 (d), step 410 in FIG. 16). As a result, the starting current I2 flowing through the switching power supply controller 15 becomes zero (step 420), and the switching power supply controller 15 stops its operation (FIG. 15 (e), step 430 in FIG. 16). At this time, since the switching power supply unit 11 is in a stopped state and is not energized at all, there is no power consumed by the switching power supply unit 11. Figure 15. Here, the relay RY1 is in an off state (normally open) when the switching power supply unit 11 is in a stopped state (that is, when no current flows to the input side).

Therefore, according to this embodiment, when the toilet device is not used and the toilet lid is closed, the power consumed by the switching power supply circuit can be reduced to zero.

<Fourth Embodiment> FIG. 17 shows a fourth embodiment.
This will be described with reference to FIG. FIG. 17 is a block diagram showing the configuration of this embodiment, and FIG. 18 is an operation waveform diagram.

As a means for reducing the power consumption to zero when the toilet device is not used, in the third embodiment, the switching power source on / off control section 25 is operated by the output of the toilet lid sensor 23A. In the fourth embodiment, the switching element 20 of the switching power supply control unit 15 is fed back by the feedback of the DC output to the switching power supply control unit 15.
Is turned off.

In this embodiment, the main body control unit 24 controls the transistor Tr in accordance with the ON / OFF output of the toilet lid sensor 23A.
By turning on and off 2 the feedback voltage V
The value of f is changed, and the switching power supply controller 15 turns off the switch element 20 to turn off the switching power supply 11
To stop.

More specifically, the switching power supply controller 15 operates while the toilet device is in use. However, when the toilet device is used and the toilet lid 3 is closed, the toilet lid sensor 2
3A becomes low level (FIG. 18 (b)). Then, the body controller 24 turns on the transistor Tr2 (FIG. 18C). Resistors R1 and R2 are connected in series to the output terminal of the switching power supply unit 11 and grounded. A series circuit of a transistor Tr2 and a resistor R3 is connected in parallel to the resistor R1. When the transistor Tr2 is off, the feedback voltage Vf is (R2 / (R1 + R
2)) Vcc, but since the resistors R1 and R3 are in parallel when the transistor Tr2 is turned on, the feedback voltage Vf is (R2 / (R1 // R3 + R2)) Vcc.
(R1 // R3 is the parallel resistance value of resistors R1 and R3)
It rises (FIG. 18 (d)). When the value of the feedback voltage Vf rises, the switching power supply controller 15 controls the switch element 20 in the direction of suppressing the rise of the voltage.
The switch element 20 is turned off (FIG. 18 (e)).
Then, the electromotive voltage V2 of the primary auxiliary winding 18 also decreases, and the starting current I2 also decreases, and the switching power supply controller 15 stops its operation at some point (FIGS. 18 (f) and 18 (g)),
The switching power supply unit 11 is stopped.

According to the present embodiment, as in the third embodiment, when the toilet device is not used and the toilet lid is closed, the power consumed by the switching power supply circuit can be reduced to zero. .

<Fifth Embodiment> In the present embodiment, the toilet device is provided with a human body detecting means and an electric opening / closing device for closing the toilet lid by a motor, and the output of the human body detecting means indicates the human body non-detecting state. When output, the toilet lid is closed by a motor, which will be described with reference to FIGS. 19 to 23.

FIG. 19 is a block diagram showing the configuration of this embodiment, FIG. 20 is a circuit diagram thereof, FIG. 21 is a side view showing the installation state of a human body detection sensor and a toilet lid opening / closing device, and FIG. 22 is a toilet lid opening / closing device. 23 is a detailed diagram showing the internal structure, and FIG. 23 is an operation waveform diagram of each part.

In the present embodiment, a human body detection sensor 30 for detecting whether or not a person is present in front of the toilet bowl 1.
A toilet lid opening / closing device 31 that automatically opens and closes the toilet lid 3, a toilet lid opening / closing drive circuit 32 that drives a motor 31A that is a component of the toilet lid opening / closing device 31, and a generated power supply unit 33. The human body detection sensor 30 and the toilet lid opening / closing device 31 are shown in FIG.
As shown in FIG. 3, the human body detection sensor 30 is provided on the toilet seat 2 and the base of the toilet lid 3 of the toilet 1, and operates when a person stands in front of the toilet 1. The toilet lid opening / closing device 31 includes a stepping motor 31A, a reduction gear 31C, and an output shaft 31.
And the base end of the toilet lid 3 is attached to the output shaft 31D. Other configurations are the same as those in the above-described embodiments, and thus description thereof will be omitted.

First, when using the toilet device, the relay RY1
Is on and the relay RY2 is off. In this state, since no current flows to the light emitting side of the photocoupler PC1, the collector-emitter of the photocoupler PC1 is off, and the power to the switching power supply controller 15 is supplied by the voltage induced in the primary auxiliary winding 18. Has been done.

After using the toilet device, the human body detection sensor 30
When the human body no longer detects the human body, stepping motor 31A
Rotates to close the toilet lid 3 (see FIG. 23).
(A), (b)). When the toilet lid 3 is completely closed, the output of the toilet lid sensor 23A becomes low level (FIG. 23 (c)), and the main body control unit 24 turns off the relay RY1 along with a command to stop the rotation of the stepping motor 31A, and RY2.
Output a signal to turn on (FIG. 23 (e),
(F)). When the contact of the relay RY1 opens, the input current I2 to the switching power supply control unit 15 disappears, and the switching power supply control unit 15 stops its operation. As a result, the switching power supply unit 11 is stopped and the power consumed by the switching power supply unit 11 becomes zero. (Fig. 23
(G), (i)). On the other hand, although the contact of the relay RY2 is closed, the operation of the toilet lid opening / closing device 31 is already stopped, and the counter electromotive force is not generated in the field winding 31B. Therefore, the starting circuit unit 12 to the switching power supply control unit 15 Start-up current I1
Does not flow. Here, the relay RY1 is in the off state (normally open) when the switching power supply unit 11 is in the stopped state (that is, when the current does not flow to the input side), and the relay RY2 is on when the current does not flow to the input side. It is in a state (normally closed).

According to this embodiment, even if the toilet lid 3 of the toilet device is forgotten to be closed, when the user leaves the vicinity of the toilet device, the toilet lid 3 is automatically closed and consumed by the switching power supply when not in use. It is possible to reduce the power to 0.

<Sixth Embodiment> A sixth embodiment is one in which the control device of the present invention is applied to a dishwasher.
~ It demonstrates using FIG. FIG. 24 is a perspective view showing the outer appearance of the dishwasher of the present embodiment, FIG. 25 is a block diagram showing the configuration of the present embodiment, FIG. 25 is a circuit diagram, and FIG. 27 is a front view showing the mounting state of a wash detection sensor. 28 is a table showing the operation of the wash detection sensor, and FIG. 29 is an operation waveform diagram.

The dishwasher 40 has an upper door 41 and a lower door 4
2, exhaust port 43, handles 44, 45, open / close lever 46,
It has 47 and an operation panel 48, and as shown in FIG. 27, is equipped with a washing detection sensor 49 including an infrared light emitting section 49A and a light receiving section 49B. Lower door 42
A power generation unit 13 including a magnet and an induction coil is provided near the hinge portion of the. As shown in FIG. 28, the output of the wash detection sensor 49 takes a high level when the dishwasher 40 has a wash such as dishes, and a low level when there is no wash.

The operation of this embodiment will be described below with reference to FIGS. 26 and 29. When the lower door 42 is opened, the power generation unit 1
3, an electromotive force is generated, the peak voltage is controlled to a predetermined level by the generated power control circuit unit 22, the startup current I1 flows by the photocoupler PC1 of the startup circuit unit 12, and the switching power supply control unit 15 is started up. 20 is P
WM control is performed to induce a voltage in the primary auxiliary winding 18 and the secondary winding 19. (Figs. 29 (a), (b), (e),
(F), (g)). As a result, the switching power supply unit 11
A DC voltage is output at the output of, and the main body control unit also starts operating. The main body controller turns on the relay RY1 and the starting current I2 continuously flows to the switching power supply controller 15 via the contact (FIG. 29 (d)). When a washing item is put into the dishwasher 40, a washing item detection sensor 49
Is activated, and the output of the wash detection sensor 49 becomes high level (FIG. 29 (c)). Close the lower door 42 and the upper door 41,
Dishwashing is performed by general operation.

When the lower door 42 is opened after washing the dishes and the washing object is taken out, the output of the washing object detection sensor 49 becomes low level (FIG. 29 (c)). Then, a predetermined time t
After one lapse of time, a command to turn off the relay RY1 is issued from the main body control unit 24 (FIG. 29 (d)), and the starting current I2 is eliminated by opening the contact. As a result, the switching power supply control unit 15 is stopped, the switching power supply unit 11 is stopped, and the power consumed by the switching power supply unit 11 can be reduced to zero. (FIG. 29 (e), (f), (g)).
Here, the relay RY1 is in an off state (normally open) when the switching power supply unit 11 is in a stopped state (that is, when no current flows to the input side).

According to this embodiment, it is possible to reduce the electric power consumed by the switching power supply when the dishwasher is not used, that is, when there is no item to be washed inside the dishwasher.

Although the present invention has been described above with reference to the respective embodiments, the present invention is intended to generate power by the operation of the user and activate the control device in the standby state with the power. Of course, the present invention is not limited to the above embodiment.

[0060]

According to the present invention, the following effects can be obtained.

(1) According to the present invention, a power generation unit for converting a user's operation at the start of use into electric power and outputting a start signal to the start circuit unit is provided, and the control unit is provided after the switching power supply is started. Is provided with an auxiliary power supply circuit section for keeping the ON state of the switching power supply by continuously supplying the starting current to the. In this way, by starting the switching power supply using the electric power generated by the power generation unit, the electric power for keeping the switching power supply in the ON state is no longer necessary.

(2) By providing the generated power control circuit section for controlling the output voltage of the power generation section to a constant voltage, the voltage supplied to the starting circuit can be controlled to be constant even when the generated power is large, so that the starting circuit It is possible to prevent the destruction of the parts and other circuit elements.

(3) Providing a use state detecting means for detecting the use state of the product to which power is supplied by the control device,
Switching power supply on / off control for shutting off the switching power supply by shutting off a starting current from the auxiliary power supply circuit unit to the switching power supply control unit when the usage state detection unit detects that the control device is in an unused state By providing the section, the power consumed by the switching power supply in the unused state can be reduced to zero.

(4) The switching power supply on / off control unit can be easily realized by using a switch for short-circuiting / interrupting the electric path for supplying power to the switching power supply control unit of the switching power supply.

(5) The switching power supply feeds back the voltage obtained by dividing the output voltage by a resistor, and the switching power supply ON / OFF means is controlled by the switching power supply control unit of the switching power supply to set the value of the voltage dividing resistance. By controlling the switching element, the switching element of the switching power supply is turned off, and the power supply to the switching power supply control unit of the switching power supply is stopped.

(6) When the present invention is applied to a toilet device, the use state detecting means is a toilet lid opening / closing detecting portion of the toilet device, so that the toilet lid is closed when the toilet device is not in use. The power consumed by the switching power supply can be reduced to zero when the power is on.

(7) The toilet device is provided with a human body detecting means and an electric opening / closing device for closing the toilet lid by a motor. When the output of the human body detecting means outputs the human body non-detection state, the motor is used to open the toilet lid. By making it closed, even if you forget to close the toilet lid of the toilet device, the toilet lid will automatically close when the user leaves the vicinity of the toilet device, and the power consumed by the switching power supply when not in use will be reduced. It is possible to set it to 0.

(8) When the present invention is applied to a dishwasher, the use state detecting means is a wash item detecting means in the dishwasher so that the dishwasher is not in use, that is, the wash item. It is possible to reduce the power consumed by the DC power supply when there is no onboard device to zero.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment.

FIG. 2 is a circuit diagram of the first embodiment.

FIG. 3 is a block diagram showing a configuration of a switching power supply control unit of the first embodiment.

FIG. 4 is an operation waveform diagram of the first embodiment.

FIG. 5 is a flowchart of the first embodiment.

FIG. 6 is a block diagram showing a configuration of a second embodiment.

FIG. 7 is a circuit diagram of a second embodiment.

FIG. 8 is a flowchart of a second embodiment.

FIG. 9 is an operation waveform diagram of the second embodiment.

FIG. 10 is a circuit diagram showing another example of the generated power control circuit unit in the second embodiment.

FIG. 11 is a block diagram showing a configuration of a third embodiment.

FIG. 12 is a circuit diagram of a third embodiment.

FIG. 13 is a side view showing an attachment example of the toilet lid sensor of the third embodiment.

FIG. 14 is an explanatory diagram showing the output and operation of the toilet lid sensor of the third embodiment.

FIG. 15 is an operation waveform diagram of the third embodiment.

FIG. 16 is a flowchart of the third embodiment.

FIG. 17 is a block diagram showing a configuration of a fourth embodiment.

FIG. 18 is an operation waveform diagram of the fourth embodiment.

FIG. 19 is a block diagram showing a configuration of a fifth embodiment.

FIG. 20 is a circuit diagram of a fifth embodiment.

FIG. 21 is a side view showing an installation state of a human body detection sensor and a toilet lid opening / closing device of a fifth embodiment.

FIG. 22 is a detailed view showing the internal structure of the toilet lid opening / closing device of the fifth embodiment.

FIG. 23 is an operation waveform chart of each part of the fifth embodiment.

FIG. 24 is a perspective view showing the outer appearance of a dishwasher according to a sixth embodiment.

FIG. 25 is a block diagram showing a configuration of a sixth embodiment.

FIG. 26 is a circuit diagram of a sixth embodiment.

FIG. 27 is a front view showing an attached state of the wash detection sensor according to the sixth embodiment.

FIG. 28 is a table showing the operation of the wash detection sensor according to the sixth embodiment.

FIG. 29 is an operation waveform diagram of the sixth embodiment.

[Explanation of symbols]

1 toilet bowl 2 toilet seat 3,3 'toilet lid 4 rotation axes 10 AC power supply 11 Switching power supply 12 Starting circuit section 13 Power Generation Department 14 Full wave rectifier 15 Switching power supply controller 16 transformers 17 Primary winding 18 Primary auxiliary winding 19 Secondary winding 20 switch elements 21 load section 22 Generation power control circuit section 23 Toilet lid open / close detector 24 Main unit control unit 25 Switching power supply on / off control unit 26 Comparator 27 PWM output section 28 oscillators 30 human body detection sensor 31 Toilet lid opening / closing device 31A (stepping) motor 31B field winding 31C reduction gear 31D output shaft 32 Toilet lid opening / closing drive circuit 33 Power generation unit 40 dishwasher 41 Upper door 42 Lower door 43 Exhaust port 44,45 handle 46,47 open / close lever 48 Operation panel 49 Washing object detection sensor 49A light emitting part 49B Light receiving part

Continued front page    F term (reference) 2D037 AA02 AB10 AB21 AD16                 3B082 DB00                 5H730 AA02 AA04 AA20 AS01 AS23                       BB43 BB57 CC01 DD04 EE02                       EE07 FD01 FF19 FG05 FG25                       VV03 VV06 XC02 ZZ11 ZZ12

Claims (8)

[Claims] 1. A transformer for converting and outputting an input voltage by electromagnetic coupling, a switch element connected to an input side of the transformer for on / off controlling input power, and a switch element according to output power of the transformer. In a control device having a switching power supply that includes a switching power supply control unit that performs on / off control and an auxiliary power supply circuit unit that continues supplying power to the switching power supply control unit after the switching power supply control unit is activated, It has a power generation unit that converts the operation at the start of use into electric power and a startup circuit unit that supplies power to the switching power supply control unit and starts the switching power supply, and controls the power generated by the power generation unit via the startup circuit unit. A control device characterized in that it is adapted to supply to a section. 2. The control device according to claim 1, further comprising a power generation control circuit section for controlling the output voltage of the power generation section to a constant voltage. 3. A use state detecting means for detecting a use state of the control device is provided, and when the use state detecting means detects that the control device is in an unused state, the auxiliary power circuit section controls the switching power supply. 3. The control device according to claim 1, further comprising switching power supply on / off means for shutting off a starting current to the unit to stop the switching power supply. 4. The control device according to claim 3, wherein the on / off means of the switching power supply is a switch that short-circuits / interrupts an electric path for supplying power to the switching power supply control unit of the switching power supply. 5. The switching power supply feeds back a voltage obtained by dividing an output voltage by a resistor, and the switching power supply on / off means controls the value of the voltage dividing resistor by the switching power supply control unit. The control device according to claim 3, wherein the switching element of the switching power supply is turned off to stop the power supply to the switching power supply control unit of the switching power supply. 6. The control device according to claim 3, wherein the usage state detection means is a toilet lid opening / closing detection unit of a toilet device. 7. The control device comprises a human body detecting means and an electric opening / closing device for closing a toilet lid by a motor,
7. The control device according to claim 6, wherein when the output of the human body detection unit outputs a human body non-detection state, the motor closes the toilet lid. 8. The control device according to claim 3, wherein the usage state detecting means is a washing object detecting means in the dishwasher.