JPH06287988A - Sanitary flushing device - Google Patents

Abstract

PURPOSE:To reduce the flicker of a luminaire by controlling the current-carrying to another heater in the non-current carrying period of intermittent current-carrying when the current- carrying to another heater is required during the intermittent current-carrying to a specified heater. CONSTITUTION:A current-carrying command generating means 43 inputs each information of the information 33a related to the current-carrying ratio of a hot water heater 5, the information 34a related to the current-carrying ratio of a drying heater 6, the current-carrying demand 36a to a heating heater, and the designation information 31c for preferentially current- carrying heater, and outputs corresponding current-carrying commands 4a, 4b, 4c every heater 5, 6, 7. When the given current-carrying demand is for only one system, the current-carrying command generating means 43 controls the current-carrying only to the demanded heater. When the current-carrying demands for a plurality of systems are given, the current-carrying command generating means 43 specifies the heater to carry a current on the basis of the designation information 31c for preferentially current-carrying heater, and when the currentcarrying ratio information to the specified heater requires intermittent current-carrying, a current carrying pattern is read from an intermittent current carrying pattern memory means 42 to generate and output a heater current carrying command, and the current carrying command is outputted in the non-current carrying period the preferential heater.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heater for supplying hot water for local cleaning, a heater for supplying hot air for local drying, and a heater for supplying warm air for indoor or foot heating. The present invention relates to a sanitary washing device equipped with a plurality of heaters, such as flicker of lighting equipment connected to the same commercial power source, by reducing the temporal change in power consumption, especially when intermittently energizing a specific heater. The present invention relates to a sanitary washing device designed to be reduced.

[0002]

2. Description of the Related Art Recent sanitary washing devices, in addition to supplying hot water for local cleaning, supply hot air for local drying,
It has many functions to provide a more comfortable sanitary environment, such as supplying warm air for heating the toilet room and the foot. Therefore, a plurality of heaters such as a heater for hot water for heating the washing water to obtain hot water, a heater for drying for drying, a heater for heating are provided, and commercial power is supplied to each heater.

For example, in the case of a hot water heater, the wash water is heated to a predetermined temperature to obtain hot water, and in order to maintain this hot water temperature at a predetermined target temperature, the energization ratio per unit time to the hot water heater is controlled. Intermittent energization control is performed. The heat generation amount (output) of the hot water heater is controlled by adjusting the energization time and the non-energization time. In addition, intermittent energization control is applied to the drying heater and the heating heater for the same purpose.

[0004]

Since the power consumption of each of these heaters is relatively large, about 400 to 800 watts, the voltage of the commercial power supply supplied through the indoor wiring or the like changes with the intermittent energization of the heater. May occur, and flickering of brightness (flicker phenomenon) may occur in the lighting equipment connected to the same power supply system.

In order to reduce this flicker phenomenon, the present applicant proposes in Japanese Patent Application Laid-Open No. 62-79501 that the cycle of intermittent energization is made shorter than 0.1 seconds which is a cycle in which a human body easily feels flickering. did.

However, when only one heater is energized intermittently, the change in power consumption is about several hundred watts, but when a plurality of heaters are intermittently energized, the maximum change in power consumption may exceed 1 kilowatt. However, it is difficult to sufficiently suppress the flicker of the illumination because the degree of the voltage drop of the commercial power source also increases.

The present invention has been made in order to solve such a problem, and by reducing the temporal change in the power consumption of the entire apparatus, the flicker (flicker phenomenon) of a lighting fixture or the like is reduced. An object is to provide a sanitary washing device.

[0008]

In order to solve the above-mentioned problems, a sanitary washing device according to the present invention is an apparatus having a plurality of independent heaters driven by a commercial power source, which adjusts the heat generation amount of a specific heater. Therefore, when a specific heater is intermittently energized, if there is a request to energize another heater, an energization control unit that energizes the other heater during the non-energization period of the intermittent energization is provided. To do.

[0009]

The energization control section energizes the other heater for which the energization request is issued during the non-energization period of the specific heater which is energized intermittently. For example, the power consumption of a specific heater is 8
When the power consumption of other heaters is 400 watts at 00 watts, the variation range of the power consumption is 400 watts, and the variation range of the power consumption when only a specific heater is intermittently energized
Can be less than 0 watts. Therefore, the brightness flicker (flicker phenomenon) of the lighting equipment connected to the same commercial power supply system is reduced.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of the essential parts of a sanitary washing device according to the present invention. This sanitary washing device 1 is
Setting unit 2, control unit 3, energization control unit 4, hot water heater 5, drying heater 6, heating heater 7, and energization / non-energization of commercial power AC to each heater 5, 6, 7. It is composed of power switching elements 8, 9 and 10 for controlling energization.

DC power is supplied to the operation / setting unit 2, the control unit 3, and the energization control unit 4 from a DC power supply circuit unit (not shown). Further, the drying heater 6 for drying the local area with warm air and the heating heater 7 for heating the toilet room or the user's feet are each provided with a fan for sending hot air. However, the illustration is omitted in FIG.

The operation / setting section 2 is an input key 2 for instructing the start / end of various functional operations such as cleaning, drying and heating.
1a, 21b, 21c is provided with an operating section 21, a hot water temperature setting device 22 for adjusting the hot water temperature of the local wash water, and a drying temperature setting device 2 for adjusting the temperature of hot air for drying the buttocks.
3 and a heating temperature setting device 24 that sets the temperature of the toilet room during warm air heating.

The state control unit 3 includes an operation state control unit 31 and
Hot water temperature detector 32, hot water temperature control unit 33, and drying control unit 34
A heating temperature detector 35 and a heating control unit 36.
The operation state control unit 31 controls the overall operation of the sanitary washing device 1 based on the operation input from each of the input keys 21a to 21c, and, for example, the advancing / retreating operation of a washing nozzle (not shown) based on the operation of the washing key 21a. And controlling the drive of a pump (not shown) that supplies cleaning water.
The operation state control unit 31 supplies a drying request 31a to the drying control unit 34 based on the operation of the drying key 21b,
The heating request 31b is supplied to the heating controller 36 based on the operation of the heating key 21c.

Further, the operation state control section 31 is configured to supply the energization control section 4 with the preferential energization heater designation information 31c for designating the heater to be preferentially energized in the current operation state. Which heater is to be preferentially energized is registered in advance in consideration of the usage mode of the sanitary washing device 1. For example, in the buttocks wash state in which the wash key 21a is operated, the supply of wash water at an appropriate temperature is given the highest priority, and the energization of the hot water heater 5 is given priority.

When the dry key 21b is operated, the hot air having the temperature set by the dry temperature setting device 23 is prioritized to be supplied to the local area, and the drying heater 6 is prioritized. To do. For example, a hot water storage type sanitary washing device that maintains the hot water temperature in the hot water storage tank at an appropriate temperature and supplies hot water in the hot water storage tank in response to a cleaning request, when a request for heating the wash water is made, When an energization request to the drying heater 6 is generated, the energization priority of the hot water heater 5 is lowered. Energization to the heater 7 for heating has the lowest priority, and when a washing state or a drying state occurs during the heating operation, the electricity to the heater 5 for hot water or the heater 6 for drying is prioritized.

In the hot water storage type, the hot water temperature detector 32 detects the hot water temperature in a hot water storage tank (not shown). The instant the hot water for cleaning is supplied while directly heating the water without providing the hot water storage tank. In the hot water washing sanitary device, the hot water temperature of a hot water supply pipe (not shown) is detected. In the hot water storage type, the hot water temperature control unit 33 compares the hot water temperature detection signal 32a from the hot water temperature detector 32 with the set temperature signal 22a from the hot water temperature setting device 22,
Heater 5 for hot water preset using the information on the temperature difference
The information 33a relating to the energization ratio is supplied to the energization control unit 4. The hot water temperature control unit 33 is configured to output information 33a indicating that the energization ratio is zero when the hot water heater 5 does not need to be energized.

In the case of the instantaneous boiling water type, when the hot water temperature control unit 33 receives a hot water supply command (not shown) from the state control unit 31, it uses the information on the difference between the hot water temperature detection signal 32a and the set temperature signal 22a. Then, the information 33a relating to the energization ratio of the hot water heater 5 set in advance is supplied to the energization controller 4. In the instantaneous boiling type, information 33a relating to the energization ratio of the hot water heater 5 for detecting the water temperature on the water supply pipe side and heating to the set temperature may be supplied to the energization control unit 4.

When the drying request 31a is given from the state control unit 31, the drying control unit 34 presets the drying heater based on the temperature information 23a of the hot air for local drying set by the drying temperature setting unit 23. Information 34a relating to the energization ratio of 6
Is supplied to the energization control unit 4. The drying control unit 34 is
When it is not necessary to energize the drying heater 6, information 34a indicating that the energization ratio is zero is output.

The heating temperature detector 35 is the sanitary washing device 1.
Or an appropriate position such as being built in a remote controller in the toilet room in which the sanitary washing device 1 is installed. When the heating control unit 36 receives the heating request 31b from the state control unit 31, the heating control unit 36 controls the information 24a on the heating temperature set by the heating temperature setting unit 24 and the indoor temperature detected by the heating temperature detector 35. When it is necessary to compare the information 35a and to energize the heating heater 7 to send hot air, the heating heater energization request 36a is sent to the energization control unit 4.
When the room temperature has risen sufficiently, the heating heater energization request 36a is stopped.

The heating temperature detector 35 is provided in the vicinity of the hot air outlet for heating, and the heating controller 36 causes the hot air blowing temperature to be substantially equal to the heating temperature set by the heating temperature setting device 24. In the case of a configuration in which the heating temperature is set to be controlled by the heating control unit 36, the heating control unit 36 controls the information 24a on the heating temperature set by the heating temperature setting device 24 and the information 35a on the blowing temperature.
And information 3 on the energization ratio of the heater 7 for heating.
6a may be output.

The information relating to the energization ratio corresponds to the ratio of energization time and non-energization time in intermittent energization. If the energization ratio is 100%, continuous energization is performed, and, for example, the rated power of the hot water heater 5 is With 800 watts, the power consumption is 800 watts. If the energization ratio is 50%, a heater with a rated power of 800 watts corresponds to 400 watts. In this way, by controlling the energization ratio, the heat generation amount of each heater is adjusted and the temperature is adjusted.

The energization control unit 4 includes a zero cross detection circuit 41.
And an intermittent energization pattern storage means 42 and an energization command generation means 43. The zero-cross detection circuit 41 monitors the voltage of the commercial power supply AC, generates a pulse signal 41a indicating the 0 volt point of the AC power supply, and supplies the pulse signal 41a to the energization command means 43.

The intermittent energization pattern storage means 42 is constituted by using a ROM or the like, and stores data relating to energization patterns preset for each energization ratio. In the case of the configuration that controls the energization to each heater 5, 6, 7 by the zero-cross switching method, the energization pattern is the half cycle or one cycle of the commercial power supply as the minimum control unit of energization and de-energization And the pattern is set so that the number of times of non-energization is maximized.

For example, for an energization ratio of 50%, energization and de-energization may be repeated every two and a half cycles of the commercial power source, but when the frequency of the commercial power source is 50 Hz, energization and de-energization cycles are repeated. Becomes 0.1 seconds, which is a cycle in which the human eye easily feels the flicker phenomenon.
As shown in (a), a pattern is set in which energization / de-energization is repeated every half cycle.

As shown in FIG. 4, when intermittent energization is performed by the phase control method, the intermittent energization pattern storage means 42 is used.
In the table, data relating to the energization start phase (angle) and the energization stop phase (angle) is registered in advance for each energization ratio.

The energization command generating means 43 includes the heater 5 for hot water.
33a related to the energization ratio of No. 3, information 34a related to the energization ratio of the drying heater 6, and a heater energization request 36a for heating.
And each information of the priority energizing heater designation information 31c as input, and energizing commands 4a, 4 corresponding to each heater 5, 6, 7.
b, 4c are output.

The energization command generating means 43 controls energization only to the heater for which the request has been made when the supplied energization request is for only one system. For example, when only the heating heater energization request 36a is given, the heating heater energization command 4c for continuous energization is output to continuously energize the heating heater 7. Further, an energization request is given to the hot water heater 5, and information 33 relating to the energization ratio is given.
When a is the energization ratio of 50%, the energization pattern corresponding to the ratio is read from the intermittent energization pattern storage means 42, and the hot water heater energization command 4a based on the read intermittent energization pattern is generated and output.

When the energization requests of a plurality of systems are given,
The energization command generation means 43 uses the priority energization heater designation information 31.
A heater that is preferentially energized based on c is specified, and when the energization ratio information for the specified heater requires intermittent energization, the energization pattern corresponding to the energization ratio is read from the intermittent energization pattern storage means 42. A heater energization command is generated and output based on the read intermittent energization pattern, and an energization command is output during a non-energization period of the priority heater in response to an energization request to another non-priority heater. .

For example, when an energization request of 50% energization ratio to the drying heater 6 and a continuous energization request to the heating heater 7 are generated, the priority energizing heater designation information 31c for giving priority to the drying heater 6 is given. 2 is supplied from the operation state control unit 31, the energization command generation unit 43 causes the heat generation amount (power consumption) of the drying heater 6 to be 50% of the rated output (rated power consumption) as shown in FIG. The heating heater 7 is energized during the non-energization period of the drying heater 6 as shown in FIG.

Further, in the state where the buttocks are dried after the local cleaning, the temperature of the hot water in the hot water storage tank is lowered and the heater 5 for hot water is energized. Outputs a command 31c that prioritizes power supply to the drying heater 6, so that the power supply command generation means 43
On the basis of the information 34a relating to the energization ratio of the drying heater 6, for example, as shown in FIG. 3 (a), the drying heater 6 is energized to reach 33% of the rated output.
As shown in (b), the heater 5 for hot water is energized while the heater 6 for drying is not energized.

When a request for energizing the hot water heater 5 is generated during the heating operation, the hot water heater 5 becomes the preferential energizing heater. Therefore, the energization command generating means 43 is based on the energization ratio of the hot water heater 5. Command 4a for intermittently energizing the heater 5 for hot water is output, and the heater 7 for heating is operated during the non-energization period.
A command 4c for energizing is output.

FIG. 4 is a waveform diagram when the energization control is performed by the phase control method. As shown in FIG. 4A, the heater 5 for hot water is energized for a period indicated by α.
As shown in (b), the drying heater 7 is energized in a period β other than the period α.

In order to perform the phase control, in the case where the intermittent power supply pattern storage means 42 is provided with data relating to the energization start phase (angle) and the energization stop phase (angle) with respect to the energization ratio, the energization command generating means 43 is provided. A reference clock generation circuit, a counter, and the like are provided, and the energization phase is controlled by measuring the elapsed time from the zero cross point of the commercial power supply AC. Further, in the case where the intermittent power feeding pattern storage means 42 is provided with the energization start voltage and the energization stop voltage for the energization ratio in order to perform the phase control, the zero-cross detection circuit 4 is provided.
1, a circuit for detecting the instantaneous voltage of the commercial power supply AC is provided, and the energization command generating means 43 compares the detected instantaneous voltage with the energization start voltage and the energization stop voltage read from the intermittent power supply pattern storage means 42, It is configured to generate each energization command.

Each power semiconductor switching element 8, 9,
Reference numeral 10 is an AC contactless relay (SSR ... Solid state relay) equipped with a power semiconductor switching element such as a bidirectional thyristor and a drive circuit thereof, and is supplied with energization commands 4a, 4b, 4c to each heater. It is configured such that it is in a conductive state while it is on.

Due to the above-mentioned configuration, when a plurality of heaters are energized and a specific heater among them is energized intermittently, as shown in FIGS. The other heaters are energized during the period. For example,
If the specific heater is the drying heater 6 having a rated power consumption of 400 watts and the other heater that is energized subordinately is the heating heater 7 having a rated power consumption of 400 watts, one of the heaters is energized. Power consumption does not fluctuate over time, and the brightness of lighting fixtures connected to the same commercial power source does not flicker.

Further, a specific heater has a rated power consumption of 800
In the case of the heater 5 for warm water of watts and the other heater to be energized in a dependent manner is the heater 7 for heating having a rated power consumption of 400 watts, the fluctuation amount of power consumption is 400 watts, and only the heater 5 for warm water is used. Since the fluctuation amount when the current is intermittently applied is smaller than 800 watts, the flicker phenomenon of the lighting fixture can be reduced.

Further, since the time variation of the power consumption becomes small, the noise generated by the intermittent energization is also reduced.

[0038]

As described above, in the sanitary washing device according to the present invention, when a specific heater is energized intermittently and there is a request to energize another heater, the specific heater is not energized. Since the other heaters are energized during the period, it is possible to reduce the temporal fluctuation of the power consumption of the entire sanitary washing device. Therefore, it is possible to reduce the brightness flicker (flicker phenomenon) of the lighting fixtures connected to the same commercial power supply system.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a sanitary washing device according to the present invention.

FIG. 2 is an energization waveform diagram in the case where the drying heater is intermittently energized by the zero-cross switching method and the heating heater is energized during the non-energization period of the drying heater.

FIG. 3 is an energization waveform diagram in the case where a drying heater is preferentially energized and a hot water heater is energized during a non-energization period of the drying heater by a zero-cross switching method.

FIG. 4 is an energization waveform diagram when the heater for hot water is preferentially energized intermittently and the heater for heating is energized during the non-energization period of the heater for hot water by the phase control method.

[Explanation of symbols]

 1 Sanitary Washing Device 2 Operation / Setting Unit 3 Control Unit 4 Energization Control Unit 4a, 4b, 4c Energization Command 5 Hot Water Heater 6 Drying Heater 7 Heating Heater 8-10 Power Switching Element 41 Zero Cross Detection Circuit 42 Intermittent Power Supply Pattern Storage unit 43 Energization command generation unit AC commercial power source

Claims (1)

[Claims] 1. A sanitary washing device having a plurality of independent heaters driven by a commercial power source, when a specific heater is intermittently energized in order to adjust the heat generation amount of the specific heater, A sanitary washing device comprising an energization controller that energizes the other heater during the non-energization period of the intermittent energization when there is a request to energize the heater.