JPS63122833A - Flow rate control valve of sanitary washing apparatus - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a flow control valve for a sanitary washing device having a hot water washing function, which is related to a technology for adjusting the amount of water discharged.

[Conventional technology]

Conventionally, sanitary cleaning devices have been used that discharge hot water from a cleaning water injection nozzle to clean private parts, but the opening/closing part of the flow rate regulating valve provided in this type of sanitary cleaning device is manually operated by the user. In most cases, the flow rate adjustment valve is operated by hand, or by hand via a remote device such as a release mechanism. Further, even in the case where the flow rate regulating valve is driven to open and close by an electric motor, the driving adjustment of the electric motor is performed manually.

[Problem that the invention seeks to solve]

Therefore, if the previous user of this type of sanitary washing device uses the flow rate adjustment valve at a position close to fully open, the unexpected discharge of a large amount of washing water may cause the washing water to splash around or get on clothes. If a mistake occurs such as getting the product wet, and the previous user uses the flow control valve at a lower opening,
There have been problems such as not being able to obtain a comfortable and satisfying feeling of cleaning.

The present invention was devised in view of the above-mentioned problem, and regardless of the opening degree of the flow rate adjustment valve used by the previous user, the preset average discharge will be maintained when the next user uses the valve. It is an object of the present invention to provide a flow rate control valve for a sanitary washing device that has a function of automatically adjusting the flow rate control valve to an opening degree that maintains the amount of water.

[Means for solving problems]

The flow control valve for a sanitary washing device according to the present invention has a structure in which the flow control valve for a sanitary washing device having a hot water washing function is driven to open and close by an electric motor to adjust the flow of washing water. The gist of this method is to adjust the flow rate adjustment valve to a preset opening position via the electric motor after the dispensing of cleaning water has stopped.After confirming the completion of the water dispensing operation using a microcomputer, the electric motor The flow rate adjustment valve is rotated by a predetermined amount by the microcomputer, and the flow rate adjustment valve is adjusted to the above-mentioned opening position.

Further, an operation limit regulating means for regulating the operation of the flow rate regulating valve at the maximum opening position and the minimum opening position of the operating range of the flow regulating valve is configured in the displacement portion of the flow regulating valve, and the electric motor is driven by an alternating current. The gist of the present invention is to have a structure in which the zero voltage of the current is detected and used as the drive starting point.

[Effect]

According to the above configuration, the flow rate adjustment valve is driven to open and close by the electric motor to adjust the flow rate of the cleaning water, and after the cleaning water discharge is stopped, the electric motor is moved to the preset opening position. Because the structure allows you to adjust settings through
Regardless of the state in which the previous user has finished opening the flow rate regulating valve, the flow rate regulating valve is automatically adjusted so that a preset average water discharge flow rate is obtained when the next user uses the valve.

In addition, an operation limit regulating means for regulating the operation of the flow rate adjustment valve at the maximum opening position and the minimum opening position of the operation range of the flow rate adjustment valve is configured in the displacement part of the flow rate adjustment valve. When the valve is driven in the opening or closing direction by the electric motor, the stop position is mechanically set by contacting the operating limit regulating means, so there is no variation in the maximum opening position and the minimum opening position. , high precision can be achieved.

Furthermore, when the motor detects zero voltage of the drive AC current,
Since the structure is configured with the drive starting point, in conjunction with the operation limit regulating means, it is possible to accurately set the opening degree of the flow rate adjustment valve according to the rotation angle of the electric motor. Detection sensors are no longer required, and open-loop control is achieved using microcomputer numerical control.

Note that the maximum or minimum operation limit regulating means operates to overdrive the synchronous motor control means until the numerical control reference position of the synchronous motor control means coincides with the operation reference position of the flow rate regulating valve when the power is turned on.

〔Example〕

Hereinafter, an embodiment showing the principle of a flow control valve for a sanitary washing device according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the flow control valve for a sanitary washing device.

This flow rate adjustment valve is used for cleaning water injection nozzles (
A synchronous motor 2, which rotates in synchronization with the frequency of a pulse motor, etc., rotates a flow rate regulating valve 1 configured in a cleaning water flow path (not shown) between a maximum opening position and a minimum opening position. The configuration is such that a flow rate of cleaning water corresponding to the opening degree is passed through. The synchronous motor 2 is controlled to rotate in forward and reverse directions by a synchronous motor control means 3 such as a microcomputer, and is configured to detect the zero voltage of the drive AC power source and use this as the driving starting point. The synchronous motor control means 3 is driven by a signal from a comparison means 4 that compares and measures the current opening degree and the set opening degree of the flow rate adjustment valve, and one of the comparison terminals of the comparison means 4 is connected to the flow rate adjustment valve. The current position determining means 5 inputs an operating means 6 to which the user of the discharging water turns on an increase or decrease switch to adjust the discharge flow rate, and a commercial frequency clock conversion circuit 7 to the current position determining means 5 Configure to input. Then, the commercial frequency clock conversion circuit 7 controls the synchronous motor 2 by 0N10FF according to the frequency coefficient to control the total number of rotations and the rotation angle.

Further, the synchronous motor 2 has a mechanical operation limit regulating means in the displacement portion that opens and closes the valve, which regulates the operation of the flow rate regulating valve 1 to the maximum opening position and the minimum opening position of the operating range of the flow regulating valve 1. 8, and when driven in the opening or closing direction by the synchronous motor 2, it comes into contact with the operation limit regulating means 8 to mechanically set the stop position.

The synchronous motor control means 3 drives and controls the synchronous motor 2, as shown in the flowchart of FIG. 2, and adjusts the opening degree of the flow rate regulating valve 1. In normal operation,
The minimum opening position of the flow rate regulating valve 1 is set as a reference (Min), the maximum opening position (Max), and the set opening position (Call) Mid set to obtain a standard water discharge flow rate are memorized in advance. When the user of the spouting water turns on the increase or decrease switch, the synchronous motor 2 is driven in the forward or reverse direction, and at the same time, the number of driving cycles is measured by the comparison means 4. At this time, if the flow rate adjustment valve 1 reaches the minimum opening or maximum opening, the synchronous motor control means 3 will no longer control the synchronous motor 2 even if the increase or decrease switch of the operating means 6 is turned ON. do not have. When the discharging operation of washing water is completed in the sanitary washing device, first, the rotation of the synchronous motor 2 is controlled so as to drive the flow rate regulating valve 1 to the minimum opening position. At this time, the synchronous motor 2 is overdriven by several more cycles from the reference count Min, and brought into contact with the stop member of the operation limit regulating means 8 at the minimum opening position. This mechanical contact sets a new reference position and corrects positional deviations caused by repeated 0N10FF operations of the synchronous motor 2.

After determining the reference count Min by setting the new reference position, the synchronous motor 2 is driven to rotate in the direction in which the flow rate adjustment valve 1 opens, and the set opening position at this time is set.
By Mid, the flow rate regulating valve 1 is automatically set to the normal water discharge amount state, and the process ends. Therefore, the next user can always obtain the normal amount of washing water, and from this state, he or she can turn on the increase or decrease switch of the operating means 6 according to his/her preference.
The amount of water spouted can be controlled.

In addition, in the above configuration, the normal water discharge amount setting position is set by counting from the reference position, but the setting position opening degree of the flow rate adjustment valve is detected by the position detection means, and this is used as a stop signal to control the synchronous motor. It is also possible to have a configuration in which the drive is stopped.

[Effects of the Invention] Since the flow rate adjustment valve of the sanitary washing device according to the present invention is constructed as described above, the flow rate adjustment valve is driven to open and close by an electric motor, and after the spouting of cleaning water is stopped, the flow rate adjustment valve is set in advance. Since the opening position is set and adjusted, no matter what state the previous user left the flow rate adjustment valve in, the next user will be able to obtain the preset average water flow rate. This feature automatically adjusts the amount of water that can be used, making it possible to maintain a comfortable feel even when unexpected large amounts of water are spewed out, causing the water to scatter around the surroundings, or due to mistakes such as wetting clothes, or insufficient water volume. It is possible to solve problems such as not being able to

Further, by configuring the operation limit regulating means, there is no variation in the opening control position at all, and high accuracy can be achieved.

Further, in the present invention, since the motor detects the zero voltage of the drive AC current and uses it as the drive starting point, no error occurs between the cycle calculation value of the drive AC power source and the synchronous motor drive position. In addition, the operating limit regulating means is designed to prevent temporary overload.
It has a correction function for the positional deviation that occurs when the motor is heated, and these functions work together to accurately time and set the rotation angle of the motor, making it possible to control the amount of cleaning water discharged with high precision. It has excellent characteristics such as.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a flow control valve of a sanitary washing device, and FIG. 2 is a flow chart showing the operation of the synchronous motor control means. 1...Flow rate adjustment valve 2...Synchronous motor 3...Synchronous motor control means 4...Comparison means 5...Current position judgment means 6...Operation means 7...Commercial frequency clock Conversion circuit 8...operation limit regulating means

Claims (3)

[Claims] (1) The flow rate regulating valve of a sanitary washing device having a hot water cleaning function has a structure in which the flow rate regulating valve is driven to open and close by an electric motor to adjust the flow rate of cleaning water, and after the discharge of cleaning water has stopped, the flow regulating valve A flow control valve for a sanitary washing device, characterized in that the valve is configured to be set and adjusted to a preset opening position via the electric motor. (2) In the operating range of the flow rate regulating valve, operating limit regulating means for regulating the operation of the flow rate regulating valve is provided at a maximum opening position and a minimum opening position. Flow control valve for the sanitary cleaning device described. (3) the motor detects zero voltage of the drive AC current;
3. A flow rate control valve for a sanitary washing device according to claim 1 or 2, characterized in that the flow control valve has a structure in which the driving starting point is a driving point.