JP4306404B2 - Sanitary washing device - Google Patents

Description

  The present invention relates to a sanitary washing apparatus that performs washing of a local area of a human body by spraying washing water.

  At present, sanitary washing apparatuses that perform washing by spraying washing water toward a human body part have become widespread. Further, there is an increasing demand for not only cleaning the local part but also a cleanliness of the local cleaning nozzle, and in order to meet the demand, there is an increasing number of those having a function of cleaning the local cleaning nozzle.

  As a method of cleaning the local cleaning nozzle of the satellite cleaning device, sanitary cleaning device that can reliably clean dirt attached to the outer surface of the tip of the cleaning nozzle by flowing cleaning water to the outer surface of the tip of the local cleaning nozzle Is known (see, for example, Patent Document 1). However, this cleaning method for the local cleaning nozzle has the problem that the cleaning water temperature is the same as the temperature suitable for local cleaning (about 40 ° C.) and is relatively low, so that it is incomplete in terms of sterilization. .

Therefore, there is one in which cleaning water at a temperature higher than that during local cleaning is flowed into the nozzle to clean the local cleaning nozzle (for example, see Patent Document 2). In this conventional sanitary washing apparatus, the water temperature is controlled to an appropriate water temperature during local cleaning, and is controlled to high-temperature water (40 to 70 ° C.) when cleaning the local washing nozzle, and flows into the water path.
JP 2001-152518 A Japanese Patent Laid-Open No. 10-311078

  However, the conventional configuration using high temperature water when cleaning the local cleaning nozzle can solve the problems of cleanliness and cleanability, but when cleaning the local cleaning nozzle, high temperature water of the same temperature flows out for the same time throughout the year. So that it is controlled. The purpose of the local cleaning nozzle at high temperatures is to disinfect and does not need to be cleaned under the same conditions throughout the year. It is necessary to sterilize more reliably during the rainy season when mold is likely to occur, and it is required that the temperature be high. Conversely, it is not required that the temperature in winter is so high. Thus, the sterilization required in the season is different. In recent years, when the importance of protecting the global environment has been emphasized, awareness of energy conservation is also increasing, and the optimum temperature control is also required for cleaning the local cleaning nozzle.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a sanitary washing device that can effectively clean a local washing nozzle without using wasted energy.

  In order to solve the above-described conventional problems, the sanitary washing device of the present invention is configured to change the set temperature of the cleaning hot water of the local washing nozzle based on a predetermined condition. As a result, the local cleaning nozzle can be cleaned with cleaning water having an optimum water temperature in the season and the like, and the local cleaning nozzle can be effectively cleaned without using wasted energy.

  The sanitary washing device of the present invention can efficiently clean the local washing nozzle without consuming unnecessary energy.

  1st invention is provided with the local washing nozzle which injects washing water to a human body local part, and the high temperature nozzle washing | cleaning means for cleaning the said local washing nozzle with high temperature water, The said local washing nozzle from the said high temperature nozzle washing | cleaning means By using the sanitary washing device that changes the set temperature of the high-temperature water that is injected or supplied toward the base based on a predetermined condition, the local washing nozzle can be effectively cleaned without using wasted energy.

  In particular, according to a second aspect of the present invention, in the first aspect of the invention, there is provided water temperature detection means for detecting the water temperature of the water flowing into the sanitary washing device, and the set temperature of the high temperature water is changed based on the detected temperature of the water temperature detection means. As a result, the optimum high-temperature water temperature can be set depending on the water temperature, and the local cleaning nozzle can be effectively cleaned without using wasted energy.

  According to a third aspect of the invention, in particular, in the first aspect of the invention, the apparatus further comprises room temperature detecting means for detecting the room temperature in the toilet room. Since the optimum high-temperature water temperature can be set, the local cleaning nozzle can be effectively cleaned without using wasted energy.

  According to a fourth aspect of the invention, in particular, in the first aspect of the invention, the device includes a timekeeping means for measuring the date or the month, and the set temperature of the high temperature water is changed based on the date or the month that the timekeeping means measures, Since the high-temperature water temperature can be set annually, the local cleaning nozzle can be effectively cleaned without using wasted energy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment)
FIG. 1 shows the overall configuration of a sanitary washing apparatus according to an embodiment of the present invention.

  As shown in the drawing, the sanitary washing device 1 supplies the washing water alternatively with the nozzle unit 2 having the high temperature water passage 12 through which the washing water for cleaning the buttocks washing nozzle 3, the bidet washing nozzle 4 and the local washing nozzle is passed. And a hot water tank 6 which is a high-temperature water generating means configured to store a predetermined amount of hot water and be controlled to a predetermined water temperature by a built-in heater 6a, and a water supply means 11. ing.

  The flow rate adjusting valve 5 has an inlet port 5a, a buttocks cleaning port 5b, a bidet port 5c, and a nozzle cleaning port 5d, and the cleaning water flowing from the inlet port 5a is selected for the three outlet ports 5b to 5d. Supply cleaning water. In addition, the flow rate adjusting valve 5 is configured such that the valve body of the flow rate adjusting switching valve 5 is rotationally driven by a motor 5a, and the flow rate is adjusted by switching and rotating the outlet ports 5b to 5d.

  The water supply means 11 supplies water to the hot water tank 6 from the water supply terminal 7 through the constant flow valve 8 and the electromagnetic on-off valve 9, and at the relief valve 10, each of the flow rate at the constant flow valve 8 and each of the flow rate control switching valve 5. It is comprised so that the excess water of the difference with the flow volume which flows out from exit port 5b-5d may be discharged to a toilet bowl.

  FIG. 2 shows the configuration of the tip of the nozzle unit 2. The local washing nozzle 13 for injecting the washing water into the human body part is composed of the butt washing nozzle 3 and the bidet washing nozzle 4, which is shown in the figure, and the hot water channel 12 is formed above the local washing water jet 13 a. There is a spout 12a. The high temperature water channel 12 and the jet port 12a constitute a high temperature nozzle cleaning means. Then, the set temperature of the high temperature water jetted or supplied from the high temperature nozzle cleaning means toward the local cleaning nozzle 13 is changed based on a predetermined condition.

  Next, main operations and actions will be described. When the user performs a cleaning start operation, the electromagnetic on-off valve 9 opens, and the cleaning water having a water temperature (about 40 ° C.) stored in the hot water tank 6 by the water pressure flows from the inlet port 5a, and the butt cleaning port 5b or the bidet port 5c. It passes through the buttocks washing nozzle 3 or the bidet washing nozzle 4. At this time, the butt washing nozzle 3 or the bidet washing nozzle 4 moves from the nozzle stop position toward the washing start position due to the pressure of water, and after reaching the washing start position, sprays toward the local portion to perform local washing. When the user performs the cleaning end operation, the water pressure is cut off by closing the electromagnetic on-off valve 9, so that the local cleaning nozzle is stored in the stop position.

  Cleaning of the local cleaning nozzle by the high temperature nozzle cleaning means automatically starts cleaning by a switch operation or a timer. At this time, the set temperature of the hot water tank 6 rises and the heater 6a is energized until it reaches a predetermined temperature. The washing water in the hot water tank 6 that has become hot flows in from the inlet port 5a, passes through the high temperature water passage 12 from the nozzle cleaning port 5d, and passes through the nozzle cleaning water outlet 12a to the local washing water outlet 13a. It sprays toward the front-end | tip outer peripheral part of the local cleaning nozzle 13 in the center, and disinfects the local cleaning nozzle 13 outer peripheral part. Further, by passing high temperature water from the buttocks washing port 5b or the bidet port 5c through the buttocks washing nozzle 3 or the bidet washing nozzle 4, the water path at the time of local washing from the hot water tank 6 to the local washing water outlet 13a is sterilized. It is also possible. At this time, it is necessary to adjust the flow rate so that the butt washing nozzle 3 or the bidet washing nozzle 4 does not protrude due to water pressure. The local cleaning nozzle 13 may be cleaned with hot water by cleaning the outer peripheral portion or cleaning the inner water channel, or both.

  Moreover, hot water may be made only at the time of cleaning, or the hot water tank 6 may be kept at a high temperature during normal times, and cold water may be mixed at the time of washing to make suitable hot water. The former is superior in that it does not use wasted energy. The latter can start cleaning and cleaning quickly. Further, an appropriate temperature water tank for local cleaning and a high temperature water tank for cleaning may be provided separately.

  In the explanation of the operation of the above embodiment, the hot water tank 6 is used as a high temperature water generating means to create hot water over a certain amount of time and store it as an example, but it has the ability to instantaneously make hot water. A heater may be used. In the case of the hot water storage system, complicated control is not necessary and it is inexpensive. In the case of the instantaneous method, it is compact because it is not necessary to store hot water in advance, and it is not necessary to maintain the hot water temperature, so that useless energy is not consumed.

  Bacteria such as E. coli can be killed by passing hot water at 60 ° C. or higher for 3 minutes or longer.

  That is, in the case of the hot water storage system, in order to keep the local cleaning nozzle 13 clean, it is necessary to raise the hot water tank 6 normally controlled at 40 ° C. to 60 ° C. The hot water tank 6 is generally 1000 cc or more so that hot water does not run out even after continuous cleaning to some extent. Considerable energy is required to raise 1000 cc of water by 20 ° C. In the case where a high-temperature water tank is provided separately, a large amount of energy is consumed in order to keep the temperature at 60 ° C.

  Also, if it is an instantaneous type, aiming for sterilization at 60 ° C throughout the year, the incoming water temperature in winter is about 5 ° C, and in order to instantaneously raise the temperature to 60 ° C, a heater with a high temperature raising capability is used. Need to use.

  Certain sterilization is necessary in the rainy season and high temperature when bacteria are easy to propagate. However, sterilization up to that point is not required in winter when bacteria are difficult to propagate. That is, it is important to change the set temperature of the high-temperature water according to the degree of necessity for sterilization.

  Equipped with a water temperature detection means that detects the temperature of the water flowing into the sanitary washing device, determines the necessity level of sterilization based on the water temperature, and changes the set temperature of the high-temperature water temperature based on the detected temperature of the water temperature detection means. The local cleaning nozzle can be effectively sterilized without using a large amount of energy. Generally, the incoming water temperature is about 5 ° C. in winter and 25-30 ° C. in summer. If the incoming water temperature is high, it is determined that sterilization is necessary, and reliable sterilization is performed with high-temperature water. The incoming water temperature may be detected by a thermistor. Even if a thermistor for detecting the incoming water temperature cannot be installed, in this type of sanitary washing device, the temperature and flow rate of the local wash water are important factors for ensuring performance, and at least these two detection means are provided. It is common to be. That is, it is possible to reversely calculate the incoming water temperature from the temperature of the hot water, the flow rate, and the energization rate of the heater 6a at that time.

  In addition, room temperature detection means for detecting the room temperature in the toilet room is provided, the degree of necessity of sterilization is determined based on the room temperature, and the set temperature of the hot water is changed based on the detection temperature of the water temperature detection means, so that wasted energy It is possible to effectively sterilize the local cleaning nozzle without using the. If room temperature is high, it is judged that sterilization is necessary, and sterilization is performed with high-temperature water. Room temperature may be detected using a thermistor. When a thermistor for detecting room temperature cannot be installed, this type of sanitary washing apparatus generally has a function of heating the toilet seat surface on the toilet seat. In order to keep the toilet seat surface temperature constant, a toilet seat surface detection means is often provided, and it is possible to assume the room temperature from the energization rate of the heater for warming the toilet seat.

  Moreover, it is also possible to determine the necessity degree of disinfection by providing a hygrometer in a sanitary washing apparatus. When changing the setting by detecting the incoming water temperature, room temperature, and humidity, it is possible to control the set temperature including regional characteristics.

  Further, the sanitary washing apparatus may be provided with a time measuring means for measuring the date or the month, and the set temperature of the high temperature water may be changed based on the date or the month measured by the time measuring means. Thereby, since the high-temperature water temperature can be set annually, the local cleaning nozzle can be effectively cleaned without using wasted energy. In this case, there is almost no possibility of erroneous determination if the date is surely set in the initial stage.

  Further, the local cleaning nozzle can be more efficiently kept clean by changing the amount of water and the cleaning time together with the change in the temperature setting of the high temperature water. For example, in winter when it is relatively difficult to make high-temperature water, filth may be washed away by increasing the flow rate.

  Further, when the cleaning of the local cleaning nozzle is controlled to start automatically with a timer or the like, the cleaning frequency may be changed.

  The protrusion of the nozzle may be a protrusion method using water pressure as described above, or may be driven using a motor. In the case of water pressure protrusion, the water pressure of the water supply may be used as it is, or a pump may be used. When water pressure is used, it is inexpensive. When using a pump, the water pressure is generally 49 to 735 kPa, which is different in each household, but stable performance can be supplied at any water pressure. It is also possible to promote convenience by using the pulsation feeling of the pump. In the projecting method using a motor, it is inexpensive when a DC motor is used. In addition, when a stepping motor is used, complicated control is possible.

  The local cleaning nozzle is generally made of resin, but it is desirable that it be made of metal in consideration of cleaning with high-temperature water. Furthermore, it becomes possible to keep a local washing nozzle more clean by setting it as the seamless structure without a groove | channel.

  Moreover, since the cleaning water for cleaning is at a high temperature, it must be controlled so as not to be applied to the human body. By providing the sanitary washing device with a function for determining whether or not a human body is seated, safety is improved by controlling so as to prohibit cleaning of the local washing nozzle during seating.

  As described above, the sanitary washing device according to the present invention is useful as an energy-saving sanitary washing device because it can efficiently clean the local washing nozzle without consuming wasteful energy.

The whole block diagram of the sanitary washing device in an embodiment of the invention Sectional view of the nozzle unit tip of the sanitary washing device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sanitary washing apparatus 2 Nozzle unit 3 Wet washing nozzle 4 Bidet washing nozzle 5 Flow control switching valve 6 Hot water tank 6a Heating heater 12 High temperature water channel

Claims (4)

A local cleaning nozzle for injecting cleaning water to a local body part and a high temperature nozzle cleaning means for cleaning the local cleaning nozzle with high temperature water, and jetting or supplying from the high temperature nozzle cleaning means toward the local cleaning nozzle A sanitary washing device that changes the set temperature of high-temperature water to be performed based on predetermined conditions. The sanitary washing device according to claim 1, further comprising water temperature detecting means for detecting the temperature of water flowing into the sanitary washing device, wherein the set temperature of the high temperature water is changed based on the detected temperature of the water temperature detecting means. The sanitary washing device according to claim 1, further comprising room temperature detecting means for detecting a room temperature in the toilet room, wherein the set temperature of the high temperature water is changed based on the detected temperature of the room temperature detecting means. The sanitary washing device according to claim 1, further comprising a time measuring means for measuring the date or the month, and the set temperature of the high temperature water is changed based on a date or a month timed by the time measuring means.

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