JP5573064B2 - Human body local cleaning equipment - Google Patents

Description

  The present invention relates to a human body local cleaning device having a pulsating flow generation mechanism that instantaneously heats cleaning water while flowing it.

  As a conventional human body local cleaning device provided with a pulsating flow generation mechanism, there is one in which check valves are provided at both the suction port and the discharge port of a volume chamber. As the pressure in the volume chamber of the pulsating flow generation mechanism decreases, the suction side check valve opens the volume chamber suction port, and the discharge side check valve closes the volume chamber discharge port. Further, as the pressure in the volume chamber of the pulsating flow generation mechanism increases, the suction side check valve closes the volume chamber suction port, and the discharge side check valve opens the volume chamber discharge port. Thus, it is disclosed that pulsating flow is generated and pulsating washing water is jetted from a nozzle connected to the discharge side of the pulsating flow generation mechanism toward a local body part (see, for example, Patent Document 1). ).

  In addition, by providing a pipe for water supplied from the water supply source and arranging a heater in the pipe, the heat exchange section that instantaneously heats water instantaneously and the hot water flowing from the heat exchange section are agitated. Thus, in a heat exchange device comprising a temperature stabilization unit that stabilizes the temperature of the hot water, a communication channel that connects the heat exchange unit and the temperature stabilization unit is provided, and in the middle of the communication channel, Some have an expansion chamber whose channel cross-section is wider than the communication channel. The hot water flow from the heat exchange section is squeezed when it enters the communication channel, then once expanded in the expansion chamber in the middle of the communication channel, squeezed in the communication channel, and expanded again in the temperature stabilization unit. Then, it is squeezed again in the communication flow path that follows the temperature stabilizing portion. For this reason, what is stirred several times while flowing the hot water from a heat exchange part through the communication flow path containing an expansion chamber is disclosed (for example, refer patent document 2).

JP 2003-328420 A JP 2001-132061 A

  However, in the human body local cleaning device of Patent Document 1, since the check valves are provided on both the suction side and the discharge side of the volume chamber, the maximum pressure of the pulsating flow discharged from the volume chamber becomes too high, and the volume chamber discharge There is a problem that a high load is applied to the component on the side. In particular, since the flow volume is adjusted on the discharge side of the volume chamber as compared with the suction side for adjusting the flow rate, a high load is easily applied to the parts on the discharge side of the volume chamber. In addition, since a check valve is provided on the suction side and the volume chamber suction port is closed, the heated washing water is agitated particularly when a heat exchange unit that instantaneously heats water directly is used. Therefore, there is a problem that the washing water temperature cannot be obtained by erroneously detecting the washing water temperature.

  Further, the human body local cleaning device of Patent Document 2 has a problem that the structure of the communication channel is complicated, and it is difficult to reduce the size and cost of the device.

  The present invention has been made in view of the above-described problems, and even when a heat exchange unit that instantaneously directly heats cleaning water is used without applying a high load to the components on the volume chamber discharge side, cleaning is performed. An object of the present invention is to provide a human body local washing device that can obtain a water stirring effect, can detect a washing water temperature of a predetermined temperature, and has a simple structure of a communication channel.

The first problem-solving means of the present invention includes water supply means for supplying cleaning water, a heat exchange unit for instantaneously heating with a heater while flowing the cleaning water from the water supply means, and instantaneous heating by the heat exchange unit. A pulsating flow generating mechanism that pulsates the cleaning water, a water channel switching unit that switches the water channel of the cleaning water from the pulsating flow generating mechanism, and a nozzle unit that injects the cleaning water from the water channel switching unit toward the human body part of the user And a temperature detection means for detecting the temperature of the cleaning water instantaneously heated by the heater provided between the pulsating flow generation mechanism and the heater, and a control for controlling the heater in response to a signal from the temperature detection means A local pulsating flow generating mechanism, wherein the pulsating flow generating mechanism is configured to change a volume inside thereof to generate pulsation in cleaning water; and to communicate with the volume chamber, the nozzle unit. A discharge port for discharging cleaning water toward the chamber, a suction port through which the cleaning water is constantly opened and communicated with the volume chamber, and provided between the discharge port and the volume chamber. And a check valve that opens and closes according to the pressure difference of the washing water between the discharge port and the volume chamber.

  The second problem-solving means is a configuration in which the temperature detecting means is provided in the heat exchange unit.

  In the human body local cleaning device of the present invention, the suction port of the pulsating flow generation mechanism is always open and communicates and the cleaning water is supplied to the volume chamber, thereby preventing a high load from being applied to the parts on the discharge side of the volume chamber it can. In addition, the pulsation of the washing water generated in the volume chamber propagates through the water channel from the suction port that is always open to the volume chamber toward the heat exchange unit, so even when a heat exchange unit that instantaneously heats water is used. In addition, the effect of stirring the heated washing water can be obtained without configuring a complicated communication channel, and the washing water temperature at a predetermined temperature can be detected. Furthermore, by providing the temperature detection means between the pulsation generating mechanism and the heater (upstream of the pulsation generating mechanism), the distance between the pulsation generating mechanism and the nozzle unit can be shortened, and the pulsation of the washing water ejected from the nozzle unit is impaired. Can be prevented.

  Further, since the temperature detection means is provided in the heat exchange unit, a configuration for separately providing the temperature detection means in the water channel between the heat exchange unit and the pulsation generating mechanism is unnecessary, and the temperature detection means can be easily attached.

It is explanatory drawing which shows the structure of the human body local cleaning apparatus of this invention. It is explanatory drawing which shows the cross-sectional structure of a pulsation valve. It is a temperature characteristic with and without pulsation due to a pulsation valve.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is an explanatory diagram showing a configuration of a human body local cleaning device 1 of the present invention. The human body local cleaning apparatus 1 includes a water supply valve 10 (water supply means) for supplying cleaning water, a flow rate switch 20 for detecting the flow of cleaning water, and heat that is instantaneously heated by a cylindrical ceramic heater 31 while flowing the cleaning water. Exchange unit 30, pulsation valve 40 (pulsation flow generation mechanism) that pulsates cleaning water heated instantaneously, water channel switching valve 50 (water channel switching means) that switches the water channel of cleaning water, and cleaning water from water channel switching valve 50 A nozzle unit 60 that injects the water toward the human body part of the user, a hot water temperature detection thermistor 70 (temperature detection means) that is provided in the heat exchange unit 30 and detects the temperature of the cleaning water instantaneously heated by the ceramic heater 31. The controller 80 is configured to receive a signal from the hot water temperature detection thermistor 70 and control the ceramic heater 31.

  The water supply valve 10 operates in response to a command from the control device 80, a strainer 11 for supplying the cleaning water, a flow sheet 12 and a cup 13, a relief valve 14 for draining the cleaning water to a toilet bowl (not shown). And a solenoid valve 15 for performing.

  The flow switch 20 includes a rotating blade 21 that rotates when the cleaning water flows, a photo interrupter 22 that detects the rotation of the rotating blade 21, a substrate 23 that receives a signal from the photo interrupter 22 and sends a signal to the control device 80, And an incoming water temperature detection thermistor 24 that detects the temperature of the wash water before heating.

  The heat exchange unit 30 includes a bidirectional thyristor 32 used for switching control, a heat transfer copper plate 33 for cooling the bidirectional thyristor 32, a thermal fuse 34, and a temperature sensitive lead for detecting abnormally high temperature water and turning off the water supply valve 10. A switch 35 and a vacuum breaker 36 are provided.

  The water channel switching valve 50 switches the washing water from the pulsation valve 40 to the buttocks nozzle powerful water channel 51, the buttocks nozzle mild channel 52, the bidet cleaning channel 53, and the nozzle cleaning channel 54.

  The nozzle unit 60 includes two nozzles, a buttocks nozzle 61 and a bidet nozzle 62. The buttocks nozzle 61 is fed with washing water from the buttocks nozzle powerful water channel 51 when the buttocks are powerfully washed, and has a washing water fed from the buttocks nozzle mild water channel 52 when the washing is mild and is washed. And a buttocks mild hole 64 for injecting a pulsating flow. The bidet nozzle 62 is provided with a bidet hole 63 through which washing water is sent from the buttocks bidet nozzle channel 53 during bidet cleaning and jets a peristaltic flow.

  FIG. 2 is an explanatory view showing a cross-sectional configuration of the pulsation valve 40. The pulsation valve 40 includes a cylinder chamber 41 (volume chamber) that generates pulsation in the cleaning water sprayed from the nozzle unit 60 that changes the internal volume and sprays the cleaning water toward the human body part of the user, and the cylinder chamber. A discharge port 42 that communicates with 41 and discharges cleaning water toward the nozzle unit 60 and a suction port 43 that communicates with the cylinder chamber 41 and supplies the cleaning water to the cylinder chamber 41 are provided. The suction port 43 is connected to the heat exchange unit 30 and is always open and communicated with the cylinder chamber 41.

  Between the discharge port 42 and the cylinder chamber 41, a check valve 44 that opens and closes according to the pressure difference of the cleaning water between the discharge port 42 and the cylinder chamber 41 is provided. The suction port 43 is always open. The discharge port 42 and the suction port 43 are provided with a packing 45 that seals the periphery in a watertight manner.

  The pulsating valve 40 is elastically deformed according to the cylinder chamber 41, the piston 46 stroked with respect to the cylinder chamber 41, and the stroke of the piston 46, thereby changing the volume in the cylinder chamber 41 to change the pressure in the cylinder chamber 41. 2 is connected between the motor and the piston 46, and the rotational force of the motor is converted into a linear motion along the vertical direction in FIG. A lead cam 48.

  The operation of the human body local cleaning device 1 of the present invention during the powerful buttocks cleaning will be described. When an opening operation signal is sent from the control device 80 to the solenoid valve 15, the washing water flows through the strainer 11, the flow sheet 12, and the cup 13 of the water supply valve 10 and is sent to the flow rate switch 20.

  The washing water sent to the flow rate switch 20 rotates the rotary blade 21, and the signal detected by the photo interrupter 22 at this time is sent to the control device 80 to determine the presence or absence of the washing water. The incoming water temperature detection thermistor 24 detects the water temperature of the washing water before being heated by the ceramic heater 31.

  The washing water sent to the heat exchange unit 30 is instantaneously heated to a predetermined temperature while flowing in the ceramic heater 31. The wash water heated instantaneously by the ceramic heater 31 is detected by the hot water temperature detection thermistor 70 and sent to the pulsation valve 40 via the temperature sensitive reed switch 35 and the vacuum breaker 36.

  The washing water sent to the pulsation valve 40 flows through the suction port 43 and is sent to the cylinder chamber 41. In the pulsating valve 40, the motor is driven to rotate the eccentric cam 48. The rotational movement of the eccentric cam 48 causes the piston 46 to move up and down in a predetermined cycle. Further, following the piston 46, the diaphragm 47 moves up and down to change the volume of the cylinder chamber 41. As the volume of the cylinder chamber 41 changes, the wash water sucked into the cylinder chamber 41 from the suction port 43 is pressurized and depressurized, and sent from the discharge port 42 to the water channel switching valve 40 as a pulsating flow. At this time, as the pressure in the cylinder chamber 41 rises, the check valve 44 provided at the discharge port 42 swings upward in FIG. 2 to open the outlet of the cylinder chamber 41, As the pressure drops, the seat swings downward in FIG. 2 to close the outlet of the cylinder chamber 41. On the other hand, the suction port 43 is always open. Therefore, when the pressure in the cylinder chamber 41 increases, the pressure is transmitted to the upstream side through the suction port 43, and the pressure increase in the cylinder chamber 41 is suppressed.

  The wash water sent to the water channel switching valve 50 is sent from the buttocks nozzle powerful water channel 51 to the buttocks nozzle 61, and from the buttocks powerful hole 63 provided at the tip of the buttocks nozzle 61 toward the human body portion, Injected with pressure fluctuation.

  FIG. 3 shows the temperature characteristics when there is pulsation due to the pulsation valve 40 and when there is no pulsation. When there is no pulsation due to the pulsation valve 40, when the hot water temperature detection thermistor 70 is set to a predetermined temperature (38 ° C.), the output of the ceramic heater 31 is 1100 W (1500 W = 5 V), and the water temperature at the buttocks position is 43 ° C. In the case of pulsation due to the pulsation valve 40, when the hot water temperature detection thermistor 70 is set to a predetermined temperature (38 ° C.), the output of the ceramic heater 31 becomes 950 W, and the water temperature at the buttocks position makes the hot water temperature detection thermistor 70 a predetermined temperature. It becomes approximately the same 38 ° C.

  When there is no pulsation due to the pulsation valve 40, the temperature of the wash water heated instantaneously by the ceramic heater 31 becomes large due to insufficient diffusion of the wash water at the position of the tapping temperature detection thermistor 70. When the hot water temperature detection thermistor 70 detects a low temperature portion of the cleaning water, the control device 80 increases the output of the ceramic heater 80 to 1100 W so that the low temperature portion of the cleaning water reaches a predetermined temperature (38 ° C.). To control. At this time, the portion where the temperature of the washing water is high becomes equal to or higher than the water temperature (43 ° C.) at the buttocks position.

  In the case of pulsation due to the pulsation valve 40, the pulsation of the washing water is propagated to the upstream side through the suction port 43 that is always open and communicated with the cylinder chamber 41, and reaches the position of the tapping temperature detection thermistor 70 provided in the heat exchange unit 30. To reach. At the position of the hot water temperature detection thermistor 70, the wash water is agitated by pulsation, and the temperature variation of the wash water is reduced. Accordingly, the temperature of the hot water temperature detection thermistor 70 is substantially the same as the predetermined temperature and the water temperature at the buttocks position.

  In the human body local cleaning device 1 of the present invention, the suction port 43 of the pulsating valve 40 is always open and communicates with the cylinder chamber 41 so that cleaning water is supplied to the cylinder chamber 41, so that the discharge side (downstream side) of the cylinder chamber 41 is provided. It is possible to prevent a high load from being applied to these components (water switching valve 50, nozzle unit 60, etc.). Further, since the pulsation of the cleaning water generated in the cylinder chamber 41 propagates through the water channel from the suction port 43 that is always open to the cylinder chamber 41 toward the heat exchange unit 30, the ceramic heater 31 that instantaneously and directly heats the cleaning water. Even in the case of using the above, a stirring effect of the heated washing water can be obtained without forming a complicated communication channel, and the washing water temperature at a predetermined temperature can be detected.

  Furthermore, by providing the hot water temperature detection thermistor 70 in the heat exchange unit 30, the distance between the pulsating valve 40 and the nozzle unit 60 can be shortened, and the pulsation of the washing water ejected from the nozzle unit 60 can be prevented from being impaired, A decrease in the temperature of the washing water ejected from the nozzle unit 60 can be suppressed.

  Further, the tapping temperature detecting thermistor 70 is provided in the heat exchanging unit 30, so that a configuration for separately providing temperature detecting means in the water channel between the heat exchanging unit 30 and the pulsating valve 40 is unnecessary. Further, by providing the hot water temperature detection thermistor 70 in the heat exchange unit 30, the hot water temperature detection thermistor 70 can be easily attached.

  Although the operation at the time of powerful washing of the human body part cleaning apparatus 1 has been described above, the same operation can be performed at the time of washing with the buttocks, mild washing, and bidet washing, and the same effect can be obtained.

1 Human body local cleaning device 10 Water supply valve (water supply means)
30 Heat exchange unit 31 Ceramic heater (heater)
40 Pulsating valve (Pulsating flow generation mechanism)
41 Cylinder chamber (volume chamber)
42 Discharge port 43 Suction port 44 Check valve 50 Water channel switching valve (water channel switching means)
60 Nozzle unit 70 Thermistor for detecting hot water temperature (temperature detection means)
80 controller

Claims (2)

Water supply means for supplying cleaning water;
A heat exchange unit that instantaneously heats with a heater while flowing the wash water from the water supply means;
A pulsating flow generating mechanism for pulsating the cleaning water instantaneously heated by the heat exchange unit;
Water channel switching means for switching the water channel of the washing water from the pulsating flow generating mechanism;
A nozzle unit for injecting wash water from the water channel switching means toward the human body part of the user;
A temperature detecting means provided between the pulsating flow generating mechanism and the heater for detecting the temperature of the cleaning water instantaneously heated by the heater;
A human body local cleaning device comprising a control device that receives a signal from the temperature detection means and controls the heater,
The pulsating flow generation mechanism is
A volume chamber that changes the internal volume to generate pulsation in the wash water; and
A discharge port that communicates with the volume chamber and discharges wash water toward the nozzle unit;
A suction port through which the washing water is supplied to the volume chamber;
A human body local cleaning device, comprising: a check valve provided between the discharge port and the volume chamber, and opened and closed in accordance with a pressure difference of cleaning water between the discharge port and the volume chamber.   The human body local cleaning apparatus according to claim 1, wherein the temperature detection unit is provided in the heat exchange unit.

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