JP6596651B2 - Power control device and device equipped with the same - Google Patents

Description

  The present invention relates to a power control apparatus that reduces standby power consumption when a device is not used, and a device including the same.

  The importance of energy saving in equipment is increasing year by year due to the recent energy situation and power situation. In particular, it is desired that the standby power consumption (hereinafter referred to as “standby power”) when the device is not used is as close to zero as possible.

  Conventionally, as this type of power control device, for example, a toilet device provided with a power control device that reduces power consumed by a power supply unit when a toilet device that is a device is not used and reduces standby power has been proposed. ing. (For example, refer to Patent Document 1).

  The power control device for a toilet device described in Patent Literature 1 includes a human body detection unit, a function unit, a control unit, a first power supply unit, a second power supply unit, and a power control element. The human body detection unit detects the presence or absence of a human body in the toilet. The functional unit will maintain the environment in the toilet. The control unit drives the human body detection unit and the function unit. The first power supply unit supplies DC power to the human body detection unit and the control unit. The second power supply unit converts commercial power into DC power and supplies DC power to the functional unit. The power control element is positioned in front of the second power supply unit and controls energization from the commercial power supply to the second power supply unit.

  And the control part of the electric power control apparatus of a toilet apparatus drives a power control element according to the detection result of a human body detection part, and controls supply of the commercial power supply to a 2nd power supply part. Thereby, when there is no user in the toilet, the toilet device operates only the power supply unit with low power consumption, and the standby power when the toilet device is not used is reduced. In addition, when using the toilet device, all functions are automatically made operable only by the presence of the toilet user in the toilet without depending on the user's intention to operate. As a result, an easy-to-use toilet device is realized.

  In other words, in the configuration of the conventional toilet device power control device, when the toilet device as a device is not used, the control unit turns off the power control element and turns off the power supply from the commercial power supply to the second power supply unit. ing. Thereby, the power consumed by the power supply unit itself from the commercial power supply is limited to the power consumed by the first power supply unit.

JP 2002-146878 A

  However, in the conventional configuration, consumption of about 0.5 W is necessary as standby power consumed by the first power supply unit.

That is, the configuration of the power control device of the conventional toilet device turns off the second power supply unit (A power supply) that supplies power to a functional unit or the like that is a large power load when the device is not used. And the operation signal of an operation part, the detection signal of a human body detection part, and the temperature detection signal of various temperature detection parts are processed. That is, only the first power supply unit (B power supply) that supplies power to a microcomputer having a small power load that instructs driving of each load such as various heaters, motors, and LEDs is set to an on state. As a result, in the standby state, the microcomputer (hereinafter referred to as “CPU”) performs a low-speed operation in which the power consumption is lower than that of the normal operation, thereby realizing the low power consumption mode. As standby power, consumption of about 0.5 W is required.

  Therefore, when the device is not used, the CPU issues a signal for switching from the normal power mode to the standby power mode to the power source, and the power control element (power control IC) in the power source repeats the intermittent drive stop of the power source. As a result, the inventors have come up with a configuration that further reduces the standby power to a very low power. However, in this configuration, when switching from the standby power mode, which is very low power consumption, to the normal power mode, the power supply control IC shifts the power supply from the control that repeats intermittent drive stop to the control that continuously drives. At the same time, when an operation to energize the secondary load of the power source is performed, the output voltage of the power source is lowered by the load current that is energized, and the CPU voltage supplied from the power source is lowered to reset the CPU. There is a problem that causes problems.

  The present invention solves the above-described conventional problems, and can reduce the standby power when the device is not used, and is stable when switching from the standby power mode, which is a low power consumption, to the normal power mode. It is an object of the present invention to provide a power control apparatus that can be operated and an apparatus including the same.

In order to solve the conventional problem, the power control apparatus of the present invention includes:
A usage detection means for detecting the use of the device;
A CPU that outputs an instruction to switch between a standby power mode and a normal power mode in response to a signal from the use detection means, a power source that supplies power to at least the CPU, a capacitor that stores power from the power source, and a secondary of the power source Current detecting means for detecting a current flowing in the side load, and the CPU shuts off the energization to the secondary load of the power supply by the load energization interrupting element in response to the switching instruction to the standby power mode. The CPU itself shifts to the standby power mode, and the power supply control IC performs control to repeatedly stop the intermittent driving of the power supply,
The CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode to the power supply by a signal from the use detecting means, and then delays the load energization by delaying a predetermined delay time. The delay time is automatically adjusted by the current detected by the current detecting means while the current element is energized.

  As a result, when a condition for causing the CPU to shift from the normal power mode to the standby power mode is satisfied by a signal from the usage detection means, the CPU turns on the power supply to the secondary load of the power supply in response to an instruction to switch to the standby power mode. In addition to shutting off by the shut-off element, the CPU itself is shifted to the standby power mode, and the power supply control IC performs control to repeatedly stop the intermittent driving of the power supply, thereby reducing the standby power.

  Then, when switching from the standby power mode to the normal power mode by the signal from the usage detection means, the CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode, and then sets in advance. By energizing the element for interrupting load energization with a delay of the specified delay time, the power supply becomes stable after it has been intermittently energized from a state where it repeatedly stops driving intermittently, and then to the load on the secondary side of the power supply. Since the energized operation is performed, the output voltage of the power supply is lowered by the energized load current, and the voltage of the CPU supplied from the power supply is not lowered and the CPU is not reset. Can be made.

  As described above, the power control device that can make the standby power when the device is not used minutely and can be stably operated when switching from the standby power mode, which is a small low power consumption, to the normal power mode, and A device provided with the device can be provided.

  The power control device of the present invention and the device including the same can reduce the standby power when the device is not used and are stable when switching from the standby power mode, which is a low power consumption, to the normal power mode. It is possible to provide a power control device that can be operated and an apparatus including the same.

The perspective view which shows the external appearance of the sanitary washing apparatus which is an electric power control apparatus in embodiment of this invention, and an apparatus provided with the same The block diagram of the control system of the sanitary washing apparatus in embodiment of this invention The perspective view which shows the external appearance of the remote controller in embodiment of this invention The front view of the state which open | released the front panel of the remote controller in embodiment of this invention 5-5 sectional view shown in FIG. The block diagram which illustrates the power control device in an embodiment of the invention The block diagram which shows the principal part of the power control apparatus in embodiment of this invention FIG. 7 is a timing chart illustrating an operation for switching from the standby power mode to the normal power mode in the block diagram of FIG. FIG. 7 is a timing chart illustrating an operation for switching from the standby power mode to the normal power mode in the block diagram of FIG. FIG. 7 is a timing chart illustrating an operation for switching from the standby power mode to the normal power mode in the block diagram of FIG.

  According to a first aspect of the present invention, there is provided a usage detection means for detecting use of a device, a CPU for outputting a switching instruction between a standby power mode and a normal power mode by a signal from the usage detection means, and a power supply for supplying power to at least the CPU And a capacitor for storing electric power from the power source, and a current detecting means for detecting a current flowing in a secondary load of the power source, wherein the CPU 2 of the power source in response to an instruction to switch to the standby power mode. While energizing the secondary load is interrupted by the load energization interrupting element, the CPU itself is shifted to the standby power mode, and the power supply control IC performs control to repeatedly stop the intermittent driving of the power supply, A delay set in advance after the CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode to the power supply by a signal. With energizing to the load current-blocking element delayed by between, and it is characterized in that the delay time by the detection current of the current detection means is configured to be automatically adjusted.

  As a result, when a condition for causing the CPU to shift from the normal power mode to the standby power mode is met by a signal from the usage detection means, the CPU turns on the power supply to the secondary load of the power supply in response to an instruction to switch to the standby power mode. In addition to shutting off by the shut-off element, the CPU itself is shifted to the standby power mode, and the power supply control IC performs control to repeatedly stop the intermittent driving of the power supply, thereby reducing the standby power.

  Then, when switching from the standby power mode to the normal power mode based on a signal from the usage detection means, the CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode, and then sets in advance. The load energization interrupting element is energized after being delayed by the delay time, and the delay time is automatically adjusted by the detection current of the current detection means, so that the power supply is changed from a state in which intermittent drive stop is repeated to a continuous energization state. Since the operation to energize the secondary load is performed after it becomes stable after the operation, the output voltage of the power supply decreases due to the energized load current, and the voltage of the CPU supplied from the power supply decreases. Thus, the CPU can be stably operated without being reset.

  According to the second aspect of the invention, in particular, the initial value of the delay time of the first aspect of the invention is such that the power is stored in the capacitor and is in a stable state after the power source is changed from a state in which intermittent driving is stopped to a continuous energization state. A long delay time is set, and after the CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode for the first time to the power supply, the CPU delays by the preset delay time. The delay time at the time of switching from the standby power mode to the normal power mode from the next time onward according to the detection current of the current detection means when the load energization interruption element is energized It may be configured to be automatically adjusted to a short delay time.

  As a result, even if the device used with the power control device is different from a device with a large or small secondary load on the power supply, the output voltage of the power supply is reduced by the load current that is energized from the first trial run. As a result, the CPU voltage supplied from the power source does not drop and the CPU is not reset, and the CPU can be operated stably. The delay time at the time of switching from the standby power mode to the normal power mode after the second time is reduced to a delay time suitable for the device, and can be operated stably.

  In the third invention, in particular, the automatic adjustment of the delay time according to the second invention is performed by a detection current of the current detection means after an inrush current immediately after the load energization interruption element is energized. There may be.

  Thereby, the detection current of the current detection means for performing the automatic adjustment of the delay time can be detected with high accuracy without being affected by the inrush current generated for a moment, and the automatic adjustment of the delay time can be performed accurately.

  In the fourth aspect of the invention, in particular, in the CPU of any one of the first to third aspects, an upper limit value that does not lead to CPU reset is set, and when the detected current of the current detection means reaches the upper limit value. The configuration may be such that energization to the load energization interrupting element is temporarily interrupted.

  As a result, even if the load current flowing through the secondary load of the power supply increases, the output voltage of the power supply decreases due to the energized load current, and the CPU voltage supplied from the power supply is reduced. The CPU is not lowered and reset, and can be operated stably.

  According to a fifth aspect of the present invention, in particular, a device including the power control device according to any one of the first to fourth aspects is configured such that a load energization is interrupted when the standby power mode is switched to the normal power mode by the energized load current. By automatically adjusting the delay time for energizing the device, the output voltage of the power supply is lowered, the voltage of the CPU supplied from the power supply is not lowered and the CPU is not reset, and the operation is stably performed. be able to.

  Hereinafter, a power control apparatus and an apparatus including the same according to an embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
Hereinafter, the power control apparatus according to the present embodiment and the equipment including the power control apparatus will be described with reference to the drawings, taking a sanitary washing apparatus such as a toilet apparatus as an example.

  FIG. 1 is a perspective view showing an external appearance of a power control apparatus and a sanitary washing apparatus as an apparatus equipped with the same in an embodiment of the present invention.

  As shown in FIG. 1, the sanitary washing device 100 according to the present embodiment includes at least a main body 200, a toilet lid 210, a toilet seat 220, a remote controller 400, and the like. The main body 200, the toilet lid 210, and the toilet seat 220 are integrally formed and installed on the upper surface of the toilet 110.

  In the sanitary washing apparatus 100 shown in FIG. 1, the installation side of the main body 200 is the rear, the installation side of the toilet seat 220 is the front, the right side is the front side, the right side is the front side, and the left side is the front side. The arrangement will be described.

  A toilet lid 210 and a toilet seat 220 are attached to the main body 200 via a toilet seat toilet lid rotating mechanism 215 so as to be opened and closed. The toilet seat toilet lid rotation mechanism 215 includes, for example, a DC motor and a plurality of gears, and opens and closes the toilet lid 210 and the toilet seat 220 individually or simultaneously. When the toilet lid 210 is opened, as shown in FIG. 1, the toilet lid 210 stands so as to be positioned at the rearmost part of the sanitary washing device 100. On the other hand, when the toilet lid 210 is closed, the upper surface of the toilet seat 220 is concealed.

  The toilet seat 220 includes a toilet seat heater 221, and the toilet seat heater 221 is heated to, for example, about 40 degrees so that the seating surface of the toilet seat 220 has a comfortable temperature.

  The main body 200 includes a cleaning mechanism 230 for cleaning a local part of the human body, which includes a cleaning water supply mechanism (not shown), a heat exchanger (not shown), a cleaning nozzle 231, and the like. A drying device (not shown) for drying the local part, a main body control unit 240 and the like are incorporated. The cleaning nozzle 231 is installed at the lower center of the main body 200.

  The cleaning mechanism 230 includes a cleaning water supply mechanism (not shown) installed in the main body 200, a heat exchanger (not shown) for heating the cleaning water, and a flow rate adjusting mechanism (not shown) for adjusting the flow rate of the cleaning water. Etc.) and is connected to the cleaning nozzle 231. Then, the washing water supplied from the water pipe is heated by a heat exchanger, and the heated warm water is supplied to the washing nozzle 231 and ejected from the washing nozzle 231 toward the user's local area. Thereby, a user's local part is washed with warm water.

  The washing nozzle 231 includes a butt washing nozzle part for washing the butt and a bidet nozzle part for washing a female part. Further, the cleaning nozzle 231 includes a nozzle drive mechanism (not shown) that moves back and forth between a storage position accommodated in the main body 200 and a cleaning position that protrudes from the main body 200 and performs a cleaning operation.

  Further, a seating detection sensor 250 made of, for example, a reflective infrared sensor is installed at the front corner portion of the main body 200. Then, the seating detection sensor 250 detects the presence of the user on the toilet seat 220 by emitting infrared rays and receiving the infrared rays reflected by the human body.

  Further, a sleeve portion 260 formed so as to protrude integrally with the main body 200 is provided on the right side of the main body 200. A main body operation unit 261 and an infrared reception unit 262 that is a main body reception unit that receives an infrared signal transmitted from the remote controller 400 are disposed on the upper surface of the sleeve 260. The main body operation unit 261 is provided with a power switch 261a and a buttocks cleaning switch 261b for operating a frequently used buttocks cleaning function.

As shown in FIG. 1, the remote controller 400 is configured separately from the main body 200 and is attached to a position that is easy for a user sitting on the toilet seat 220 to operate, for example, a wall of a toilet room. . The remote controller 400 is provided with a human body detection sensor 300 for detecting a user who has entered and exited the toilet room, a plurality of switch functions for operating and setting each function of the sanitary washing device 100, a display function, and the like.

  Below, operation | movement of the sanitary washing apparatus 100 of this Embodiment is demonstrated easily.

  First, when there is no user in the toilet room, the sanitary washing device 100 stops energization of the toilet seat heater 221 or energizes the toilet seat 220 to a standby temperature of about 20 ° C. to keep the toilet seat 220 warm.

  At this time, when a user enters the toilet room, a human body detection signal is received from the human body detection sensor 300 and the toilet seat heater 221 is energized. The toilet seat heater is composed of a very high output heater of about 800W. Therefore, the temperature of the seating surface of the toilet seat 220 is raised to a set temperature of, for example, about 40 ° C., for example, for about 6 to 10 seconds from when the user enters the toilet room to sit on the toilet seat 220.

  Then, after the toilet seat 220 reaches the set temperature, the energization of the toilet seat heater 221 is lowered to a low wattage of about 50 W to maintain the set temperature.

  Thereafter, when the user gets out of the toilet room, the energization to the toilet seat heater 221 is stopped or energized so as to reach a standby temperature of about 20 ° C. Thereby, the power consumption of the sanitary washing apparatus 100 when there is no user in a toilet room is reduced significantly.

  In the sanitary washing device 100 of the present embodiment, the cleaning mechanism 230 including the cleaning nozzle 231 and the drying device described above and the drying device are not essential components, and thus the sanitary washing device 100 that does not include these components. The structure of may be sufficient.

(Operation and action of sanitary washing equipment)
Below, operation | movement and an effect | action of the sanitary washing apparatus of this Embodiment are demonstrated using FIG. 2, referring FIG.

  FIG. 2 is a block diagram of a control system of the sanitary washing device according to the embodiment.

  As shown in FIGS. 1 and 2, first, when the human body detection sensor 300 of the remote controller 400 detects a human body, a human body detection signal is transmitted from the infrared transmission unit 436 of the remote controller 400. The transmitted human body detection signal is received by the main body receiving unit (infrared receiving unit) 262 of the main body 200 and then transmitted (transmitted) to the main body control unit 240. Based on the transmitted human body detection signal, the main body control unit 240 drives the toilet seat toilet lid rotation mechanism 215 to open the toilet lid 210. Then, energization of the toilet seat heater 221 of the toilet seat 220 is started and the temperature is raised so that the seating surface of the toilet seat 220 becomes about 40 ° C. within 10 seconds.

  Next, when the user is seated on the toilet seat 220, the seating detection sensor 250 of the main body 200 detects the seating of the user. When the main body control unit 240 receives the seating signal, the user can operate the buttocks cleaning switch 261b of the main body 200 and the cleaning function of the remote controller 400.

  Next, when the user finishes the toilet, the cleaning mechanism 230 performs local cleaning based on the cleaning conditions of the buttocks cleaning switch 261b and the remote controller 400 set by the user. When cleaning is completed, the user stands up from the toilet seat 220 and exits the toilet room. Thereby, transmission of the human body detection signal from the human body detection sensor 300 of the remote controller 400 is stopped.

  Next, after a lapse of a predetermined time (for example, after 5 minutes) from the end of the human body detection, the main body control unit 240 drives the toilet seat toilet lid rotation mechanism 215 to automatically close the toilet lid 210. Then, power supply to the toilet seat heater 221 is stopped. Thereafter, until the user enters the toilet room again and uses the toilet device, the main body control unit 240 shifts to a standby power mode in which standby power is significantly reduced.

(Configuration of remote controller)
Hereinafter, the configuration of the remote controller of the sanitary washing device of the present embodiment will be described with reference to FIGS. 3 to 5 with reference to FIG.

  FIG. 3 is a perspective view showing an external appearance of the remote controller according to the embodiment. FIG. 4 is a front view showing a state in which the front panel of the remote controller in the same embodiment is opened. 5 is a cross-sectional view taken along line 5-5 shown in FIG.

  As shown in FIG. 3, the remote controller 400 is formed of a rectangular parallelepiped with a thin overall shape. The remote controller 400 includes a box-shaped remote control main body 401 formed of, for example, a resin material, and a front panel 402 that covers the front surface of the remote control main body 401. The front panel 402 is pivotally supported at the front lower end portion of the remote control main body 401 so as to be freely opened and closed. Specifically, the front panel 402 is blocked by a magnetic force by a magnet 401a provided on the left and right in the vicinity of the upper end of the remote control body 401 and a stainless steel receiving plate 402c provided at a position corresponding to the magnet 401a on the front panel. The state is maintained.

  Normally, the remote controller 400 is used with the front panel 402 closed as shown in FIG. However, when the remote controller 400 is set and an operation that is not normally used is performed, the front panel 402 is opened as shown in FIG.

  As shown in FIGS. 2 and 4, an operation switch 410 and a human body detection sensor 300 that are frequently used when the sanitary washing device 100 is used are arranged on the upper part of the front surface of the remote control body 401 with the remote controller 400 opened. On the other hand, a setting switch 420 for setting functions of the sanitary washing device 100 and an operation switch 410 that is not normally used are arranged at the lower part of the front surface of the remote control body 401. Further, at the center of the front surface of the remote control main body 401, two illuminance sensors 440 used for non-contact operation and an operation switch 410 capable of the same operation as non-contact operation are arranged. The operation switch 410 and the setting switch 420 are constituted by tact switches that are contact switches that are operated by directly contacting the operation unit of the switch.

  In addition, as shown in FIG. 3, as the operation switch 410 that is normally used in a state where the front panel 402 of the remote controller 400 is closed, the front panel 402 includes a bidet washing switch 411, a buttocks washing switch 412, A drying switch 413, a stop switch 414, a toilet seat opening switch 415, and a toilet seat closing switch 416 are disposed. The bidet washing switch 411 is a switch for starting female local washing. The buttocks washing switch 412 is a switch for starting washing of the buttocks. The drying switch 413 is a switch that starts drying the heel after washing. The stop switch 414 is a switch for stopping operations started by the bidet cleaning switch 411, the buttocks cleaning switch 412, and the drying switch 413. The toilet seat opening switch 415 is a switch for raising the toilet seat 220. The toilet seat close switch 416 is a switch for inverting the toilet seat 220. The toilet seat opening switch 415 and the toilet seat closing switch 416 are arranged on the same perpendicular line with a predetermined interval.

As shown in FIG. 4, as the operation switch 410 that can be used only when the front panel 402 is opened, for example, a rhythm switch 417, a wide switch 418, a move switch 419, and the like are arranged on the remote control body 401. Yes. The rhythm switch 417 is a switch that changes the washing water for the buttocks washing. The wide switch 418 is a switch that expands and contracts the ejection range of the cleaning water during the buttocks cleaning. The move switch 419 is a switch that repeatedly moves the cleaning position during cleaning back and forth.

  Further, as shown in FIG. 4, the remote control main body 401 is provided with an intensity indicator lamp 431, a hot water temperature indicator lamp 432, a toilet seat temperature indicator lamp 433, and a battery indicator lamp 434. The intensity indicator lamp 431 is provided in the vicinity of the intensity switch 421 and displays the strength level of the cleaning water. The hot water temperature indicator lamp 432 is provided in the vicinity of the hot water temperature switch 423 and displays the set level of the hot water temperature. The toilet seat temperature indicator lamp 433 is provided in the vicinity of the toilet seat temperature switch 424, and displays the set toilet seat temperature level. The battery indicator 434 displays the battery consumption state.

  As shown in FIG. 4, the remote control main body 401 is provided with a first illuminance sensor 441, a second illuminance sensor 442, and a sensor detection indicator lamp 435. The first illuminance sensor 441 is provided close to the lower side of the toilet seat opening switch 415. The second illuminance sensor 442 is provided close to the lower side of the toilet seat closing switch 416.

  The sensor detection indicator lamp 435 is disposed at a substantially middle position (including the middle) between the toilet seat opening switch 415 and the toilet seat closing switch 416. The sensor detection indicator lamp 435 blinks when the toilet room is too dark and the first illuminance sensor 441 and the second illuminance sensor 442 cannot sufficiently detect a change in illuminance. On the other hand, the sensor detection indicator lamp 435 is turned on when a gesture operation is detected. The gesture operation means that the user performs a predetermined operation with a gesture of moving his / her hand in proximity to two illumination sensors 440 including a first illumination sensor 441 and a second illumination sensor 442, for example. means.

  That is, a gesture is performed in which the user moves his / her hand in the vicinity of the first illuminance sensor 441 and the second illuminance sensor 442 configured by non-contact switches. As a result, a change in illuminance is detected, the direction of movement is determined, and a gesture operation for raising and lowering the toilet seat 220 is performed in accordance with the movement direction, for example. Specifically, for example, when a change in illuminance is detected in the order from the second illuminance sensor 442 to the first illuminance sensor 441 by moving the hand from the bottom to the top, the toilet seat 220 is raised. On the other hand, for example, when a change in illuminance is detected in the order from the first illuminance sensor 441 to the second illuminance sensor 442 by moving the hand from the top to the bottom, the toilet seat 220 is inverted. As a result, even when the illuminance is insufficient, the toilet seat 220 can be opened and closed in a non-contact manner through a gesture operation.

  As shown in FIGS. 3 and 4, an infrared transmission unit 436 including, for example, an infrared light emitting diode as a light emitting element is disposed on the upper surface corner of the remote control main body 401. The infrared transmission unit 436 transmits operation information and setting information of the remote controller 400 to the infrared reception unit 262 installed on the sleeve portion 260 of the main body 200.

  As shown in FIGS. 2 and 5, the front panel 402 of the remote controller 400 includes a substantially flat (including flat) resin panel frame 402a, a back cover 402b, and a plurality of operation buttons 403. It is composed of The operation button 403 is a button for operating the operation switch 410 installed on the remote control main body 401 from the front panel 402. That is, the operation button 403 closes the front panel 402 with the bidet washing switch 411, the buttocks washing switch 412, the drying switch 413, the stop switch 414, the toilet seat opening switch 415, and the toilet seat closing switch 416. In order to operate, it is installed corresponding to those positions.

  In addition, the front panel 402 of the remote controller 400 includes a transmission portion 404 formed of a transparent resin material at portions corresponding to the first illuminance sensor 441, the second illuminance sensor 442, the intensity indicator lamp 431, and the battery indicator lamp 434. It is arranged. Thereby, the intensity indicator lamp 431 and the battery indicator lamp 434 can be visually recognized from the surface of the front panel 402. Furthermore, since the first illuminance sensor 441 and the second illuminance sensor 442 can detect an illuminance change via the transmission unit 404, a gesture operation can be performed with the front panel 402 closed.

  In the present embodiment, a change in the illuminance of the first illuminance sensor 441 and the second illuminance sensor 442 is detected by a gesture operation, and the tilting operation of the toilet lid 210 and the toilet seat 220 is performed. Therefore, when the user changes the setting condition, there is a possibility that a change in illuminance due to a shadow that occurs during the opening / closing operation of the front panel 402 is erroneously detected as a gesture operation. Therefore, as shown in FIG. 2, an open / close detection sensor 437 for detecting the open / closed state of the front panel 402 is provided. As a result, during the opening / closing operation of the front panel 402, the toilet seat 220 is prevented from being tilted even if a change in the illuminance of the first illuminance sensor 441 and the second illuminance sensor 442 is detected.

(Remote controller control system configuration)
Below, the structure of the control system of the remote controller of the sanitary washing apparatus of this Embodiment is demonstrated, referring FIG.

  As shown in FIG. 2, the remote controller 400 includes a human body detection sensor 300, an open / close detection sensor 437, an operation switch 410, a setting switch 420, and an illuminance sensor 440 as information input units. Moreover, the output part is equipped with the infrared rays transmission part 436 which transmits control information to the main body 200 with infrared rays, and the indicator lamp 430 which displays control information. Further, a battery 450 is provided as a drive source for the remote controller 400.

  In addition, the remote control unit 500 of the remote controller 400 further includes a sensor detection unit, a switch operation detection unit, and a gesture detection unit (not shown). The sensor detection unit detects a detection signal of the sensor. The switch operation detection unit detects switch operations of the operation switch 410 and the setting switch 420. The gesture detection unit converts the gesture operation signal from the illuminance sensor 440 configured by the first illuminance sensor 441 and the second illuminance sensor 442 into a digital signal and detects it. Thereby, various types of operation information are processed.

  As described above, the gesture detection unit performs digital processing by converting the detection voltage of the illuminance sensor 440 into a digital signal via the A / D converter. However, the gesture detection unit greatly consumes power and greatly affects the consumption of the battery 450 that is the power source of the remote controller 400. Therefore, in the present embodiment, the gesture detection unit is driven only while the human body detection sensor 300 is detecting a human body. As a result, while the human body is not detected, the gesture detection unit is suspended, and consumption of the battery 450 is suppressed.

  The remote controller 400 further includes a sensor driving unit that drives the illuminance sensor 440 and a sensitivity adjustment unit that adjusts the sensitivity of the illuminance sensor 440 in order to detect a gesture operation. The sensitivity adjustment unit adjusts a reference voltage serving as a reference for detecting a gesture operation and a detection threshold value for detecting the gesture operation according to a change in brightness at a place where the remote controller 400 is installed. At this time, if the installation location of the remote controller 400 is too dark and exceeds the reference voltage adjustment range, the sensor detection indicator 435 shown in FIGS. 3 and 4 blinks to notify the user that the gesture operation cannot be performed. To do.

In addition, the remote control unit 500 of the remote controller 400 includes a battery 450 (not shown).
A battery inspection unit for detecting the remaining amount of the battery, a display lamp driving unit for driving the indicator lamp 430 for displaying control information, and a timer for providing timing information. Further, as the information processing function of the remote control unit 500, an information processing unit mainly composed of a microcomputer is provided.

  The control system of the remote controller of the sanitary washing apparatus of this Embodiment is comprised by the above.

  That is, as shown in FIG. 2, the remote controller 400 having the above configuration receives various operation information from the operation switch 410, the setting switch 420, the first illuminance sensor 441, and the second illuminance sensor 442 that are operation units. Entered. Based on the input operation information, the information processing unit of the remote control control unit 500 determines what kind of operation has been performed, turns on a predetermined display lamp 430 via the display lamp driving unit, and the user To recognize.

  Further, the remote control unit 500 of the remote controller 400 transmits a control signal from the infrared transmission unit 436 to the infrared reception unit 262 of the main body 200. Thereby, the main body control unit 240 controls various functions of the sanitary washing device 100 based on the transmitted control signal.

(Configuration of power control device)
Below, the structure of the electric power control apparatus of the sanitary washing apparatus of this Embodiment is demonstrated using FIG. 6, referring FIGS. 1-5.

  FIG. 6 is a block diagram illustrating a power control apparatus according to the embodiment.

  As shown in FIG. 6, the power control apparatus of the present embodiment includes at least an A power source 104 and a B power source 109. The A power source 104 includes an A power source input unit 102 and an A power source output unit 103 having an A power source control IC 25 that constitutes an A power source control element. The A power source 104 is connected to the output load 105 controlled by the main body control unit 240 such as the cleaning mechanism 230, the toilet seat heater 221, the heat exchanger heater, the deodorizing fan, and the drying fan, which are functional units of the sanitary cleaning device 100. Supply power.

  On the other hand, the B power source 109 includes a B power source input unit 106, a B power source output unit 107, and a B power source mode switching control unit 108. The B power source 109 supplies power to, for example, the CPU 22 and the secondary side load 23 that constitute the control unit. The CPU 22 outputs a switching instruction between the standby power mode and the normal power mode based on the signal from the usage detection unit 111. The secondary load 23 includes a toilet seat thermistor that detects the temperature of the toilet seat, a water input thermistor that detects the temperature of water entering the heat exchanger, a hot water thermistor that detects the temperature of the hot water from the heat exchanger, the toilet seat 220, and heat exchange. This is a circuit for preventing overheating of the vessel. Further, the CPU 22 controls connection and disconnection between the commercial power source and the A power source 104 via the relay 26.

  Note that the remote controller 400 and the main body receiving unit (infrared receiving unit) 262 described above (operation and action of the sanitary washing device) correspond to the use detecting unit 111 shown in FIG. A detection signal is transmitted to the CPU 22.

  In addition, the usage detection unit 111 includes a configuration in which the user operates the operation switch 410 of the remote controller 400 to transmit from the remote controller 400 to the main body receiving unit (infrared receiving unit) 262.

  Further, the usage detecting unit 111 may be configured to transmit a signal from the toilet seat toilet lid rotation mechanism 215 to the CPU 22 as a signal to use the device even when the user manually opens the toilet lid 210 or the toilet seat 220. included.

  Furthermore, the use detection unit 111 includes a configuration in which the apparatus operating unit 261 transmits a signal to the device 22 to the CPU 22 as in the case where the butt cleaning switch 261b of the body operating unit 261 is operated.

  Further, as shown in FIG. 6, the B power supply 109 is configured by a primary winding 112 provided in the B power supply input unit 106, a secondary winding 113 provided in the B power supply output unit 107, and a B power supply control element. For example, a transformer 115 including an auxiliary secondary winding 114 provided in a B power mode switching control unit 108 including a B power control IC 21 is provided.

  As described above, the power control device of the sanitary washing device 100 of the present embodiment is configured.

  At this time, when a usage detection signal (a signal indicating that the device is not being used) is transmitted from the usage detection unit 111 to the CPU 22, the CPU 22 instructs the commercial power to the A power source 104 according to an instruction to switch to the standby power mode. Shut off the supply. At the same time, the CPU 22 itself shifts to a standby power mode that is a low speed mode. Further, the standby power mode in which the B power supply control IC 21 of the B power supply mode switching control unit 108 repeats the intermittent drive stop of the B power supply 109 due to the current drop of the auxiliary secondary winding 114 due to the current drop of the secondary winding 113 of the transformer 115. It becomes. Thereby, standby power can be brought close to zero as much as possible. As a result, it is possible to realize a power control device that can significantly reduce standby power and a device including the same.

(Operation and action of power control device)
The operation and action of the power control apparatus according to the present embodiment will be described below with reference to FIG.

  First, as described in the above (operation and action of the sanitary washing apparatus), when the signal transmitted from the usage detection unit 111 to the CPU 22 is in a condition for shifting to the standby power mode, the CPU 22 performs FIG. The secondary load 23 is interrupted by the load energization interrupting element 24 shown in FIG. At the same time, the CPU 22 itself shifts from the high speed mode to the low speed mode. Thereby, the power load on the secondary winding 113 side of the transformer 115 is further reduced.

  That is, when the CPU 22 receives a use detection signal indicating that the device is not used from the use detection unit 111, the CPU 22 cuts off the secondary load 23 by the load energization cut-off element 24. At the same time, the CPU 22 itself shifts from the high speed mode to the low speed mode. As a result, as shown in FIG. 6, the current flowing through the secondary winding 113 of the transformer 115 decreases from Ia to Ib, and standby power decreases. Furthermore, the current flowing through the auxiliary secondary winding 114 of the transformer 115 also changes from Ic to Id according to the secondary load 23.

  For example, in FIG. 6, the voltage VFB applied to the FB terminal of the B power supply control IC 21 during normal operation (when the current flowing in the secondary winding 113 of the transformer 115 is Ia) is VFB1 = (R2 + R3) × Ic / (R1 + R2 + R3).

  On the other hand, when the CPU 22 cuts off the secondary load, the operation shifts to a standby power mode operation in which the current flowing through the secondary winding 113 of the transformer 115 decreases from Ia to Ib. At this time, the voltage VFB2 applied to the FB terminal of the B power supply control IC 21 during the standby power mode operation is VFB2 = (R2 + R3) × Id / (R1 + R2 + R3).

  When the voltage VFB2 applied to the FB terminal of the B power supply control IC 21 is lower than the predetermined voltage Vref, the B power supply control IC 21 itself operates to enter the standby power mode.

  That is, when the CPU 22 cuts off the secondary load 23, sets the CPU 22 itself to the low speed mode, and the B power supply control IC 21 itself enters the standby power mode by the B power supply mode switching control unit 108, the B power supply control IC 21 stops the intermittent drive. Transition to repeated standby power mode. In the present embodiment, in the standby power mode, the B power supply control IC 21 is in a state of repeating an intermittent drive stop operation of, for example, 1 ms drive and 24 ms stop.

  When the voltage VFB2 applied to the FB terminal of the B power supply control IC 21 is lower than the predetermined voltage Vref, the output current Id and resistance of the auxiliary secondary winding 114 are set so that the B power supply control IC 21 itself enters the standby power mode. Needless to say, R1, R2, and R3 are appropriately set.

  As described above, in the power control apparatus according to the present embodiment, when a condition for shifting from the normal power mode to the standby power mode is set by a signal from the usage detection unit 111, the CPU 22 first supplies the commercial power to the A power source 104. The supply is shut off and the secondary load 23 of the B power source 109 is shut off.

  At the same time, the CPU 22 itself shifts to a standby power mode that is a low speed mode. The B power supply control IC 21 of the B power supply mode switching control unit 108 repeats the intermittent drive stop of the B power supply due to the current drop of the auxiliary secondary winding 114 of the transformer 115 due to the current drop of the secondary winding 113 of the transformer 115. The standby power mode is set.

  As a result, the supply of commercial power to the A power source 104 is cut off, and power consumption at the A power source 104 and the output side load 105 of the A power source is eliminated in the standby power mode.

  Further, when the secondary load 23 of the B power source 109 is cut off and the B power source 109 enters a standby power mode in which intermittent drive stop is repeated, standby power when the device (sanitary washing device) is not used is approximately Reduce to about 0.004 watts and close to zero. As a result, it is possible to realize a power control device that can significantly reduce standby power and a device (sanitary washing device) including the power control device.

  In the present embodiment, if the B power supply mode switching control unit 108 is not provided, the power control apparatus operates as follows.

  First, when the power control device has a condition for shifting from the normal power mode to the standby power mode based on a signal from the usage detection unit 111, the CPU 22 cuts off the commercial power supply to the A power source 104. At the same time, the secondary load 23 of the B power source 109 is cut off. Then, the CPU 22 itself shifts to a standby power mode that is a low speed mode. Thereby, standby power can be reduced to about 0.7 watts.

  However, in the configuration without the B power supply mode switching control unit 108, the standby power is about 175 times larger than the standby power of the power control apparatus of the present embodiment. That is, it can be seen that the provision of the B power supply mode switching control unit 108 as in the power control apparatus of the present embodiment has a great effect of significantly reducing standby power.

(Switching control from standby power mode to normal power mode)
Hereinafter, switching control from the standby power mode to the normal power mode of the sanitary washing device of the present embodiment will be described.

  First, a remote control signal is transmitted from the remote controller 400 of the usage detecting means 111 shown in FIG. 6 to the infrared receiver 262 which is a main body receiver.

  As described above, the sanitary washing device of the present embodiment includes the remote controller 400 equipped with the human body detection sensor 300 that detects a person entering and exiting the toilet room. When a person is detected or the operation switch 410 arranged on the remote controller 400 is operated, an infrared signal is transmitted from the infrared transmission unit 436. The transmitted infrared signal is received by the main body receiving unit (infrared receiving unit) of the main body 200, and the received signal is input to the CPU 22 in the main body 200.

  At this time, when the power control device is in a standby power mode for reducing standby power, the human body detection sensor 300 detects a person or detects that the operation switch 410 of the remote controller 400 has been operated by a person. The power control device is switched from the standby power mode to the normal power mode.

  Hereinafter, an operation of switching the power control apparatus from the standby power mode to the normal power mode will be described with reference to the block diagram of FIG. 7 in which the main part of the block diagram of FIG. 6 is easily seen.

  As shown in FIG. 7, when a signal for switching from the standby power mode to the normal power mode is input from the CPU 22 to the B power source 109, the B power source 109 is temporarily turned off by the power control IC 21 in the B power source. Switch from driving to continuous driving.

  When the B power source 109 is switched from the standby power mode to the normal power mode, a signal for switching from the standby power mode to the normal power mode is input to the B power source 109 from the CPU 22, and at the same time, the load energization cutoff element 24 is energized. Because the power of the capacitor 701 is consumed quickly, the output of the B power supply 109 is lowered, and the CPU 22 cannot operate normally due to a so-called CPU reset or the like.

  In the present embodiment, as shown in FIGS. 7 and 8, a usage detection unit 111 that detects the use of a device, and a switching instruction between the standby power mode and the normal power mode are output by a signal from the usage detection unit 111. A power source 109 for supplying power to the CPU 22, a capacitor 701 for storing power from the B power source 109, and a current detection means 28 for detecting a current flowing through the secondary load 23 of the B power source 109. In response to the instruction to switch to the standby power mode, the CPU 22 cuts off the energization to the secondary load 23 of the B power source 109 by the load energization cut-off element 24 and shifts the CPU 22 itself to the standby power mode. Controls the intermittent drive stop of the B power source 109, and the CPU 22 detects the standby power mode in response to a signal from the use detecting means 111. After the switching signal for instructing switching from the normal power mode to the B power source 109 is output to the B power source 109, the load energization interrupting element 24 is energized after being delayed by a preset delay time, and is delayed by the detection current of the current detection means 28. The time is automatically adjusted.

  As a result, when the CPU 22 makes a condition for shifting from the normal power mode to the standby power mode based on a signal from the usage detection unit 111, the CPU 22 instructs the secondary load 23 of the B power source 109 to switch to the standby power mode. While energization is interrupted by the load energization interrupting element 24, the CPU 22 itself is shifted to the standby power mode, and the power supply control IC 21 performs control to repeatedly stop the intermittent drive of the power supply, thereby reducing the standby power.

Then, when switching from the standby power mode to the normal power mode by the signal from the usage detection unit 111, the CPU 22 outputs a switching signal for instructing switching from the standby power mode to the normal power mode to the power supply control IC 21 in advance. By energizing the load energization interrupting element 24 with a delay of a set delay time Ta1 (for example, 1 second), the B power source 109 becomes stable after the intermittent drive stop is changed to the continuous energization state. Since the operation to energize the secondary side load 23 is performed, the output voltage of the B power source 109 decreases due to the energized load current, the voltage of the CPU 22 supplied from the B power source 109 decreases, and the CPU 22 Can be stably operated without being reset.

  FIG. 8 is a timing chart illustrating an operation of switching from the standby power mode to the normal power mode in the block diagram of FIG. When switching from the standby power mode to the normal power mode, a switching signal is input from the CPU 22 to the B power source 109, and at the same time, the load energization cutoff element 24 is energized after a preset delay time Ta1. This is to prevent the output voltage of the B power source 109 from decreasing due to a current flowing through the secondary load 23 in a state where no electric power is stored in the capacitor 701.

  As shown in FIGS. 8 and 9, the initial value of the delay time (Ta1 in FIG. 8) is stable because the power is stored in the capacitor 701 after the B power source 109 changes from the state where intermittent driving is stopped to the continuous energization state. A long delay time (Ta1 in FIG. 8) is set, and after the CPU 22 outputs a switching signal for instructing switching from the initial standby power mode to the normal power mode to the power supply, the preset time is set. The delay time at the time of switching from the standby power mode to the normal power mode from the next time onward according to the detected current of the current detecting means 28 when the load energization cutoff element 24 is energized with a delay of the set delay time (see FIG. 9 (Ta2) is automatically adjusted to a delay time shorter than the initial value (Ta1 in FIG. 8).

  As a result, even if the device used with the power control apparatus of the present embodiment is different from a device having a large or small secondary load on the power source, the power source is switched by the load current that is energized from the first trial run. The output voltage is not lowered, the CPU voltage supplied from the power supply is not lowered, and the CPU 22 is not reset. The delay time at the time of switching from the standby power mode to the normal power mode after the second time can be shortened to a delay time Ta2 (for example, 0.3 seconds) suitable for the device, and can be operated stably.

  Further, as shown in the timing charts of FIGS. 8 and 9, the automatic adjustment of the delay time is performed by detecting the current after the time T3 after the inrush current immediately after the time T2 when the load energization interruption element 24 is energized. The detection current is used.

  Thus, for example, the detection current of the current detection means 28 for automatically adjusting the delay time, such as Ta1 in FIG. 8 to Ta2 in FIG. 9, can be accurately detected without being affected by the inrush current that occurs momentarily. Accurate delay time can be automatically adjusted.

  Further, as shown in the timing charts of FIGS. 8 and 9 and particularly FIG. 10 described below, the CPU 22 is set with an upper limit value that does not lead to CPU reset. Then, as shown in FIG. 10, when the detection current of the current detection means 28 reaches the upper limit value (at time T5 in FIG. 10), the current supply to the load conduction cutoff element 24 is temporarily cut off.

  As a result, even if the load current flowing through the secondary load of the power supply increases, the output voltage of the power supply decreases due to the energized load current, and the CPU voltage supplied from the power supply is reduced. This prevents the CPU 22 from being reset. In this way, the device can be operated stably.

  Incidentally, as shown in FIGS. 8 and 9, the current flowing through the current detection means 28 is set to be equal to or lower than the current leading to the CPU reset from the time T3 to the time T4 until the output voltage of the B power source 109 reaches the steady state. If the upper limit is not exceeded, the normal power mode is continued.

  Further, even when the power supply 109 is temporarily cut off at the time T5 as shown in FIG. 10, the current supply to the load conduction interruption element 24 is resumed at the time T6 when the output voltage of the B power source 109 reaches a steady state. If the current flowing through the means 28 is smaller than the upper limit value, the normal power mode is continued.

  As shown in FIG. 10, in the operation of switching from the standby power mode to the normal power mode, if the detected current flowing in the current detection means 28 flows more than the upper limit value and is temporarily interrupted, the next standby power mode is changed to the normal power mode. In the operation of switching to, the delay time is automatically adjusted to a delay time longer than Ta3 (for example, 0.1 second), and the device can be operated stably.

  Depending on the device using this power control apparatus, the load may be different and the load current may be different.

  Therefore, if the delay time for delaying the energization timing is made constant, in the case of a model with a large load current, the delay time is insufficient and the output voltage of the B power supply 109 decreases, leading to a CPU reset, and the device cannot be stably operated. .

  In the case of a model with a small load current, if the delay time is long, the time for switching from the standby power mode to the normal power mode becomes long. Therefore, the CPU 22 outputs a switching signal for instructing switching from the standby power mode to the normal power mode to the B power source 109 by a signal from the usage detection unit 111, and then delays the load energization by delaying it by a preset delay time. In addition to energizing the element 24, the delay time is automatically adjusted according to the detection current of the current detection means 28, so that the delay time for energizing the load energization interrupting element 24 is automatically adjusted according to the load current. The normal power mode can be switched appropriately and stably.

  As described above, the delay time for energizing the load energization shut-off element 24 at the time of switching from the standby power mode to the normal power mode is automatically adjusted according to the device having a different secondary load of the power source. Even if the secondary load is different from that of large or small devices, the output current of the power supply is lowered by the load current that is energized, and the CPU voltage supplied from the power supply is lowered to reset the CPU. It can be operated stably without being done.

  The present invention can be applied to a technical field such as a device equipped with a human body detection sensor or a remote controller including a power control device that is required to significantly reduce standby power when the device is not used.

21 B power supply control IC
22 CPU
23 Secondary load 24 Load energization cutoff element 25 A Power supply control IC
26 Relay 27 Sub CPU
28 Current detection means 100 Sanitary washing device 102 A power input unit 103 A power output unit 104 A power source 105 Output load (functional unit)
106 B power source input unit 107 B power source output unit 108 B power source mode switching control unit 109 B power source 110 toilet bowl 111 use detecting means 112 primary winding 113 secondary winding 114 auxiliary secondary winding 115 transformer 200 main body 210 toilet lid 215 Toilet seat toilet lid rotation mechanism 220 Toilet seat 221 Toilet seat heater 230 Cleaning mechanism 231 Cleaning nozzle 240 Main body control unit 250 Seating detection sensor 260 Sleeve portion 261 Main body operation unit 261a Power switch 261b Butt cleaning switch 262 Main body receiving unit (infrared receiving unit)
300 Human body detection sensor 400 Remote controller (operation remote controller)
401 remote control body 401a magnet 402 front panel (outer)
402c Receptacle 403 Operation button 410 Operation switch 411 Bidet washing switch 412 Butt washing switch 413 Drying switch 415 Toilet seat opening switch 416 Toilet seat closing switch 417 Rhythm switch 418 Wide switch 419 Move switch 420 Setting switch 421 Strength switch 423 Hot water temperature switch 424 Toilet seat Temperature switch 430 Indicator lamp 431 Strength indicator lamp 432 Hot water temperature indicator lamp 433 Toilet seat temperature indicator lamp 434 Battery indicator lamp 435 Sensor detection indicator lamp 436 Infrared transmitter 440 Illuminance sensor 441 First illumination sensor 442 Second illumination sensor 450 Battery 500 Remote control Part 701 Capacitor

Claims (5)

A usage detection means for detecting the use of the device;
A CPU that outputs an instruction to switch between the standby power mode and the normal power mode in response to a signal from the use detection means;
A power supply for supplying power to at least the CPU;
A capacitor for storing power from the power source;
Current detecting means for detecting a current flowing through the secondary load of the power source,
In response to an instruction to switch to the standby power mode, the CPU shuts off the energization of the secondary load of the power source by a load energization shut-off element and shifts the CPU itself to the standby power mode. Control to repeat intermittent drive stop of the power supply,
The CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode to the power supply by a signal from the use detecting means, and then delays the load energization by delaying a predetermined delay time. A power control device characterized in that the delay time is automatically adjusted by the current detected by the current detection means while the current is supplied to the device. The initial value of the delay time is set to a long delay time in which the power is stored in the capacitor and becomes stable after the power source is continuously energized from a state in which intermittent drive stop is repeated,
After the CPU outputs a switching signal for instructing switching from the standby power mode to the normal power mode for the first time to the power source, the load energization cutoff element is energized with a delay of the preset delay time. The delay time at the time of switching from the standby power mode to the normal power mode after the next time is automatically adjusted to a delay time shorter than an initial value in accordance with a detection current of the current detection means at the time of The power control apparatus according to 1. The power control device according to claim 2, wherein the automatic adjustment of the delay time is performed by a detection current of the current detection unit after an inrush current immediately after the load energization cutoff element is energized. 4. The CPU according to claim 1, wherein an upper limit value that does not lead to a CPU reset is set, and when the detected current of the current detection means reaches the upper limit value, energization to the load energization interrupting element is temporarily interrupted. The power control apparatus according to any one of claims. The apparatus provided with the electric power control apparatus of any one of Claims 1-4.

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