JP2832759B2 - Temperature control method in sanitary washing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control technique for a sanitary washing apparatus which mixes hot water and water at the time of washing an anus or a bidet, and discharges hot water adjusted to an appropriate temperature to wash a local area. The present invention relates to a temperature control method in a sanitary washing device in which an initial setting operation is quickly performed until a local washing function can be used after sitting.

[0002]

2. Description of the Related Art In a sanitary washing apparatus such as a hotel facility having a hot water washing function such as anal washing and bidet washing, hot water and water are supplied to the apparatus by piping from other equipment. In order to perform the local cleaning function with comfortable hot water, which is a function, it is necessary to mix and adjust hot water and water and operate the hot water supply and water supply equipment normally so that the temperature of the hot water to be discharged is kept within a predetermined range. is required. Also,
It is also necessary to perform a control operation so that the warm water to be washed is stably maintained in a comfortable temperature range.

Accordingly, in this type of sanitary washing apparatus, the user is seated such that the hot water supply temperature exceeds 42 ° C., and the hot water in the pipe is discharged until the hot water temperature reaches 42 ° C. The "operation" and "the remaining water treatment operation" are continued until the cooled water is discharged from the pipeline after the hot water temperature is mixed and controlled and the discharged hot water temperature reaches a predetermined temperature.

[0004]

For this reason, if there is an abnormality in the hot water supply equipment and the hot water at a predetermined temperature is not available, the above-mentioned "discharging operation" continues forever or an apparatus including a mixing valve for mixing hot water and water. If a certain temperature occurs and hot water of a predetermined temperature does not flow out, the above-mentioned "residual water treatment operation" is forever drained, and not only does not proceed to the washing operation, but also if the "spent water operation" is not completed. In order to avoid the next "wash water discharge operation", it has been required to shorten the processing time of the preceding stage as much as possible.

The present invention has been made in view of the above-described problems, and not only eliminates the problem that the "spent water operation" and "residual water treatment operation" continue forever, but also "sold water operation". To provide a temperature control method in a sanitary washing device that can finish washing and "residual water treatment operation" as smoothly and quickly as possible and stand by in a state where washing and discharging can be performed at a comfortable hot water temperature in a short time. It is assumed that.

[0006]

SUMMARY OF THE INVENTION A temperature control method in a sanitary washing apparatus according to the present invention uses a thermostat for ending a hot water removal operation as quickly as possible to obtain hot water of 42 ° C. or more on a hot water supply side in a short time. The purpose is to set the valve on the water side and to prevent water from entering the hot water. Therefore, when the user sits on the toilet seat (starts use), the thermo valve automatically turns on the water side. In addition to preventing the mixing of water into the hot water supply pipe, the hot water removal operation is performed under the optimal conditions for the hot water removal operation, thereby shortening the hot water removal operation time.

[0007] Further, a learning function for automatically resetting the position of the thermovalve to the last use position after the end of the hot water rinsing operation is provided.

[0008]

According to the above-mentioned sanitary washing device, when the user gets hot water at a predetermined temperature after sitting on the toilet seat, the pre-washing / remaining water treatment means cools down the water accumulated in the water discharge pipe. When the operation of overflowing water as washing water for the nozzle is performed, a learning function for automatically resetting the position of the thermovalve to the last use position is provided, so that the appropriate temperature setting time by the pre-cleaning is short (7). (Within seconds), and the initial setting time is shortened in addition to the hot water operation time, so that the user can quickly wash with comfortable warm water after sitting on the apparatus.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a temperature control method in a sanitary washing apparatus according to the present invention will be described below with reference to FIGS.

FIG. 1 shows the configuration of a piping system of a sanitary washing apparatus having a function for carrying out the present invention. Reference numeral 1 denotes a local washing nozzle provided in a main body A. This nozzle 1
Has a structure in which it is displaced and driven to a predetermined use position (anal cleaning and bidet cleaning) and a storage position by a nozzle motor 2, and a rear end of the nozzle 1 communicating with a discharge hole for discharging cleaning hot water is flooded. e, which is connected via a check valve 3 branching off from the solenoid valve 4 of the valve unit C constituting the functional unit B via a check valve 3 for monitoring the temperature of water discharge d in a pipe communicating with the nozzle 1 The temperature limiter thermistor sensor 5 is provided.

The thermovalve 6 of the temperature control system which constitutes the electronic valve unit D of the functional section B has a secondary valve which communicates with the solenoid valve 4 of the valve unit C by changing a mixing ratio by a control driving mixing motor 7. The water supply temperature is controlled to a preset temperature (42 ° C.), and a temperature control thermistor sensor 8 is provided in the water discharge pipe 17 of the secondary pipe. The thermo valve 6 of the electronic valve unit D supplies hot water and water from the external equipment of the apparatus to the primary side, and the water supply pipe a communicates with the strainer through the check valve 9 with strainer and the pressure reducing valve 10. On the other hand, the hot water supply pipe b is connected through a check valve 11 with a strainer and a pressure reducing valve 12 and communicates with a hot water discharge solenoid valve 13 provided in the valve unit C. A thermistor sensor 14 for controlling hot water is provided in the branch line. The secondary side of the hot water dispensing solenoid valve 13 communicates with a drain water pipe c which communicates with a secondary pipe of a throttle valve 15 provided in the valve unit C. The check valve 3 provided at the subsequent stage of the solenoid valve 4 is branched from the pipe line, and the flow rate adjusting motor 16 controls the amount of water flowing to the drainage pipe c to adjust the flow rate of the washing hot water flowing through the nozzle 1. It has a structure to do.

FIG. 2 is a block diagram showing a configuration of a control system of the present apparatus for controlling and driving the above-mentioned piping system.

A hot water ON / OFF control means 21 for controlling the opening and closing of the hot water electromagnetic valve 13 starts a control operation in response to a "seating" signal from a seat detecting means 20 provided at the toilet seat position of the main body A. And the temperature information "42" of the hot water temperature detecting means 22 comprising the hot water control thermistor sensor 14.
ON drive by “less than ° C”. This hot water ON / OF
The F control means 21 counts the time t1 from the ON driving by the hot water time control means 23, and the hot water failure determination means 24 connected at the subsequent stage determines that the time t1 exceeds a preset time (for example, 2 minutes). In this case, it is judged as "abnormal" and a pulse signal is issued.
The control means 21 operates so as to drive the electromagnetic valve 13 "OFF" so as to dispose of hot water. If the time t1 does not exceed 2 minutes, it is determined to be “normal” and the control of the pre-washing / remaining water treatment means 25 at the subsequent stage is performed. After the pre-cleaning / residual water processing means 25 and the hot water ON / OFF control means 21 have completed the "hot water processing", the solenoid valve 4 is opened for a certain time t2 (for example, 7 seconds) to clean the nozzle 1, 1 is used to flow the cold residual water in the pipe to warm the pipe, and the time t2 from the ON drive of the pre-cleaning / remaining water treatment means 25 is counted by the pre-cleaning time control means 26. It is composed. When the pre-washing time control means 26 ends at the predetermined time t2, the washing water spouting means 29 in the latter stage is maintained in a standby state, and the "water spouting signal" from the washing signal input means 28 of "butt washing" or "bidet washing" is output. It is designed to operate after input. As shown in FIG. 2, the residual water treatment method of the above-described embodiment is based on the temperature information of the pre-wash water temperature detecting means 27 provided in the water discharge pipe 17 and “the water temperature drop in the water discharge pipe 17”.
Is detected and the hot water ON / OFF control means 21 is driven again, and it is needless to say that both structures can be provided together.

The operation of the temperature control method in the sanitary washing device having the above-described structure will now be described with reference to the operation flow chart of the entire sanitary washing device shown in FIG. 3 (the temperature control method is a portion surrounded by a broken line R) and FIG. The description will be given according to the timing chart. (1) The user's sitting is sensed by the seating detecting means 20 configured at the toilet seat position. (2) Until the temperature of the hot water is detected as 42 ° C., the solenoid valve 13 for hot water is opened to perform “hot water”. At this time, if the temperature does not reach 42 ° C. within the preset time t1 (two minutes), it is determined that “the external hot water supply equipment has failed” and the hot water supply operation is stopped. (3) After the operation of (2) above, the thermovalve 6 of the electronic valve unit D is set to the temperature control position set at the time of the previous use (at this time, the first time the power is turned on, the first time the power is turned on) Set to position). (4) Simultaneously with the operation of (3), the nozzle 1 extends 12.5 mm, and the water force is adjusted by setting the throttle valve 15 to the minimum water discharge amount position by the flow rate adjusting motor 16 and after the completion of the setting operation, the electromagnetic valve 4 for water discharge. And pre-wash for 7 seconds (t2)
Do. At this time, the electronic valve unit D controls and drives the mixing motor 7 to control the temperature of the thermovalve 6, and is adjusted and controlled to the set temperature. (5) After the above operation (4) is completed, the nozzle 1 is housed, and the water force is adjusted by setting the throttle valve 15 to the maximum discharge amount position by the flow rate adjusting motor 16 and the washing signal input means 26 is set after the water force is set. Waiting for the reception of the "butt washing" and "bidet washing" switches. (6) If the “backwash” or “bidewash” switch is not pressed for 5 minutes during the reception standby state, the thermovalve 6 of the electronic valve unit D is fully opened to the water side by the mixing motor 7 to perform the above (2). The operation is performed. (7) After the operation (6) is completed, the thermovalve 6 of the electronic valve unit D is set to the temperature control position previously adjusted by the operation (4), and then the operation (6) is performed. (8) When the seating detection unit 20 detects that the user is not seated, the following operation is performed. (9) If the “butt cleaning” or “bidet cleaning” is being performed during the cleaning operation, the operation is stopped and the same mode as when the “stop” switch is pressed is set. (10) In the water force adjustment, the flow rate adjustment motor 16 is driven to set the throttle valve 15 to the maximum water discharge amount position. (11) The thermo valve 6 of the electronic valve unit D
Fully open to the water side.

[0015]

As described above, the temperature control method in the sanitary washing apparatus according to the present invention is configured as described above, so that it is stopped and cooled in the water discharge pipe so as to obtain a comfortable water discharge temperature (for example, 42 ° C.). In the device that performs the "hot water operation" for discharging hot water, the thermo valve of the electronic valve unit is set to the previous temperature control position after the hot water is finished,
It is possible to wait in a short time in a state where the washing water can be discharged by a comfortable hot water temperature, and it is possible to expect a water saving effect in the sanitary washing device, and the effect after implementing the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is an apparatus piping diagram showing a configuration for realizing a temperature control method in a sanitary washing apparatus according to the present invention.

FIG. 2 is a block diagram showing the control system.

FIG. 3 is an operation flowchart showing a control method of the apparatus.

FIG. 4 is a timing chart showing control driving of the device.

[Explanation of symbols]

 A body part B function part C valve unit D electronic valve unit 1 nozzle 2 nozzle motor 3 check valve 4 solenoid valve 5 temperature limiter thermistor sensor 6 thermo valve 7 mixing motor 8 temperature control thermistor sensor 9,11 check valve 10, DESCRIPTION OF SYMBOLS 12 Pressure reducing valve 13 Electromagnetic valve for hot water disposal 14 Thermistor sensor for hot water disposal 15 Throttle valve 16 Flow control motor 17 Water discharge pipe 20 Seating detection means 21 Hot water supply ON / OFF control means 22 Hot water temperature detection means 23 Hot water time control means 24 Hot water temperature failure judgment means 25 Pre-wash / residual water treatment means 26 Pre-wash time control means 27 Pre-wash water temperature detection means 28 Wash signal input means 29 Wash water discharge means a Water supply pipe b Hot water supply pipe c Waste water pipe d Water discharge e Overflow

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akio Fujii 5-1-1, Kamiamihigashi, Kokura-minami-ku, Kitakyushu-shi, Fukuoka Tokoki Co., Ltd. Kokura No. 2 Factory (72) Inventor Toshihiro Fukuda Kitakyushu, Fukuoka 5-1-1, Kamiamihigashi, Kokura Minami-ku, Tokyo Togaku Kikai Co., Ltd. Ogura No. 2 Factory (56) References JP-A-2-178438 (JP, A) Fully open 1987-77268 (JP, U) Fully open Hei 3-32671 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E03D 9/00-9/16

Claims (1)

(57) [Claims] 1. A hot water and a water supplied to the apparatus are mixed and adjusted via a thermo valve, and then discharged, and have a hot water washing function such as an anus washing and a bidet washing. The temperature of the hot water to be ejected is kept within a predetermined range. In order to stably maintain the hot water supply temperature, the hot water in the pipe is discharged until the hot water temperature reaches a constant temperature. In a sanitary washing device configured to perform a "pre-wash / residual water treatment operation" in which hot water in a spouting pipe is discharged through a nozzle pre-wash line until the temperature reaches a constant hot water temperature, an automatic In a state where the thermo-valve is controlled so that the thermo-valve is fully opened to the water side, the hot-water supply operation is performed until the primary-side hot water supply temperature of the thermo-valve exceeds a preset temperature. Automatically set to position A temperature control method in a sanitary washing device, wherein the temperature control is performed again.