JPH05285295A - Hot/cold water mixing device - Google Patents

Abstract

PURPOSE:To provide a hot/cold water mixing device allowing an effective hot water washing with a simple operation. CONSTITUTION:A hot water passage 11 in which hot water is passed to a hot/ cold water mixing valve 10 and a water passage 12 in which water is passed from a water supply piping to the valve 10 are formed, and a water stop valve 13 and a check valve 14 are interposed, respectively. On the lower stream side of the valve 10, a hot water mixing passage 15 is formed, and a temperature sensor 16 is provided therein. In a hot water mixing device 1, a control part 18 has a washing machine kind judging means 19, washing water/hot water selecting means 20, 21, a power source switch 22, and a start/temporary stop switch 23. Thus, an effective hot water washing can be performed with a simple operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing apparatus which can be connected to a water pipe of a washing machine to supply hot water of an appropriate amount and quantity to the washing machine for hot water washing.

[0002]

2. Description of the Related Art It has been known that warm water is more effective than cold water for washing, and hot water has been conventionally used for washing. In order to perform washing with such warm water, it has been performed by supplying warm water of an appropriate temperature from a mixing tap to a washing machine.

[0003]

However, when the above-mentioned mixing stopper is applied to a fully automatic washing machine and washing is performed, once the hot water temperature is set, the hot water can be changed in order to change the hot water temperature. It is necessary to adjust the hot water temperature manually in consideration of the end timing of the hot water. If the hot water temperature is not adjusted, the hot water at the initial hot water temperature is used for the entire washing process, resulting in waste of hot water and fuel. In addition, when applying the mixing stopper to a so-called two-layer washing machine for washing, it is necessary to wait until hot water supply for hot water for washing is completed and then stop hot water supply. Also, in the rinsing step, the water stop operation must be performed after the end of the step, which is cumbersome, and if the water stop operation is neglected, the hot water or the cold water remains in a discharged state, which is a great waste. The present invention has been made to solve the above problems, and an object of the present invention is to provide a hot and cold water mixing device that enables simple and easy washing with warm water.

[0004]

In order to solve the above problems, the present invention comprises a washing water / hot water selecting means applied to washing in a plurality of operation modes of a washing machine,
It is characterized in that it is connected to a water pipe of a washing machine to supply an appropriate amount of hot water to the washing machine. Further, in the present invention, a hot water flow path and a water flow path, each of which has a water shutoff valve and a check valve, respectively, are joined together via a hot water mixing valve, and the temperature of the mixed hot water mixed by the hot water mixing valve is detected. A plurality of washing water / hot water selecting means that configures a hot and cold water mixing flow path to the washing machine through the hot water temperature detecting means and selects the water to be used for washing or hot water, and the washing machine type that is switched depending on the type of the washing machine to be used And a controller for controlling the valve opening degree of the hot and cold water mixing valve based on the switching signal from the hot water temperature detecting means and the switching signal from the washing machine type switching means.

[0005]

[Function] When a two-tub type washing machine is used, when starting the apparatus and performing a washing operation, water or hot water is selected and the operation is started, and the selected water or hot water is poured into the washing machine ( Pouring) When water or warm water is collected in the washing machine, stop pouring water (pouring water). Even if the operator forgets to stop pouring water, pouring water stops automatically when a predetermined time elapses after the start of tapping.

After the washing is completed, the operation in the next operation mode (rinsing mode) is started, either hot water or water is selected, and water is poured into the washing machine (pouring water). The warm water or water accumulates in the washing machine, the water is stopped, and the rinse operation is started. Even if you forget to stop the water operation, the water will automatically stop after a certain period of time has passed since you started pouring water into the washing machine. Further, when washing is continued, if restarted, the washing operation is started, the selected water is poured into the washing machine (pouring water), and the washing operation can be executed.

On the other hand, in the case of a fully automatic washing machine, the procedure is as follows. The operation is started by selecting water or hot water, and the selected water or hot water is poured (pouring water) into the washing machine. After a lapse of a set time from the start of pouring water, the washing mode is automatically switched to the rinsing mode, and water is poured into the washing machine. After the rinsing operation is completed, washing is completed and the water is automatically stopped. It should be noted that when the washing is continued, the washing operation can be started by restarting the washing operation, pouring water of the selected temperature or hot water into the washing machine and executing the washing operation.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a hot and cold water mixing apparatus according to the present invention will be described below with reference to the accompanying drawings with reference to an embodiment. In FIG. 1, reference numeral 1 denotes a hot and cold water mixing apparatus. The hot and cold water mixing apparatus 1 includes various valves and a control unit (described later) described later in a housing 2, and an operation panel 3 has a power switch button 4, A start / pause switch button 5, a washing selection button 6 and a rinsing selection button 7 for selecting washing water / hot water, and a fully automatic / two-layer changeover switch 8 for instructing the type of washing machine are provided. It is a thing. Each of the power switch button 4, the start / pause switch button 5, the wash selection button 6 and the rinse selection button 7 is provided with a display lamp 9 indicating that it is in an operating state. In the wash selection button 6, “hot water”, “water”, and “wool” are described, and a display lamp 9 is provided for each of them. When the washing selection button 6 is pressed, the washing water / warm water selecting means is operated, and the display lamp 9 for the selected one of "hot water", "water", and "wool" is turned on. In addition,
The hot water temperature is set to 40 ° C. for “hot water” and 30 ° C. for “wool”. Also, with the rinse selection button 7,
"Hot water" and "water" are written, and the display lamp 9
Is provided, and "hot water" and "water" can be selected by pressing operation.

The hot and cold water mixing apparatus 1 will be described in detail. As shown in FIG. 2, hot water supply pipes (not shown) such as a water heater.
Hot water flow path 11 from which hot water from the water passes to reach the hot water mixing valve 10
And a water flow path 12 through which water passes from the water supply pipe to the hot and cold water mixing valve 10 is formed, and the hot water flow path 11 and the water flow path 12 respectively include a water stop valve 13 and a check valve 14. Has been done. A hot and cold water mixing passage 15 reaching the washing machine is formed on the downstream side of the hot and cold water mixing valve 10, and a temperature sensor 16 for detecting the temperature of the hot water mixing is provided. Further, a bypass water passage 17 that does not pass through the hot water mixing valve 10 is provided on the water flow passage 12 side so as to communicate with the hot water mixing flow passage 15 from the downstream side of the check valve 14, and the bypass valve 17 is interposed. It This bypass valve 17 is of a manual type that discharges water regardless of the open / close position of the hot and cold water mixing valve 10.

Next, in the hot and cold water mixing apparatus 1, the control unit 18 built in the housing 2 is shown in FIG. 3 and will be described. That is, the control unit 18 controls the signal S1 depending on the type of the washing machine by the switching operation of the fully automatic / two-layer type changeover switch 8.
Washing machine type determining means 19 for outputting the washing water type / washing water / hot water selecting means 20 for deriving selection signals S2, S3 relating to water or hot water selected by the water selection operation of the washing selection button 6 and the rinse selection button 7 (washing) Mode) and washing water / hot water selecting means 21 (rinsing mode), a power switch 22 and a start / stop switch 23. The signals from the washing machine type judging means 19, the washing water / warm water selecting means 20, 21, the power switch 22 and the start / stop switch 23 are introduced into the control mechanism 24. The control mechanism 24, based on the detection signal S4 from the temperature sensor 16 in addition to the above signals,
The valve opening control of the hot and cold water mixing valve 10 is performed.

The hot and cold water mixing valve 10 includes the control mechanism 24.
Based on the drive control signal S0 from the controller, the flow path of water and hot water is blocked, and the opening degree can be controlled to mix the water flow path, the hot water flow path, and the hot water and water at an appropriate ratio. The rotary valve has a rotary valve (not shown), and the rotary drive motor 25 adjusts the opening. A cam 26 is provided on the rotary shaft of the rotary drive motor 25, and a position detection switch (not shown) indicating the position of the rotary valve is provided, and detection signals Sw1 and Sw2 are led to the control mechanism 18, respectively. It has become so.

The hot and cold water mixing apparatus 1 according to the present invention is constructed as described above, and its operation will be described below.
In the case of using the two-tub type washing machine, if the full-automatic / two-layer type changeover switch 8 is switched to the two-tub type, the washing machine type judging means 19 gives a signal S1 indicating that the two-tub type is to be used. It is sent to the control mechanism 24. Next, when the power switch button 4 is operated and the washing operation is performed, the washing selection button 6 selects water or warm water. In addition, in the washing operation, if the selection operation is not performed,
“Hot water” is preferentially set, and hot water having a hot water temperature of 40 ° C. is poured into the washing machine. When "water" or "wool" is to be poured (pouring), the washing selection button 6 is pressed. In this case, if the washing selection button 6 is pressed,
The washing water / warm water selection means 20 derives a selection signal S2 relating to water or warm water, and selects the selected "hot water",
The display lamps 9 for "water" and "wool" are turned on.

Based on the selection signal S2, the control mechanism 18 supplies the drive control signal S0 to the hot and cold water mixing valve 10 to drive the rotary drive motor 25 to open the hot water and the water at an appropriate ratio. Degree control. As a result, 40 ° C. required for selection from the hot water mixing valve 10 via the hot water mixing flow path 15
Hot water will be poured into the washing machine. In the hot water mixing flow path 15, the temperature of the hot water poured into the washing machine is detected by the temperature sensor 16, and the detection signal S
4 is fed back to the control mechanism 18 to stabilize the pouring temperature.

When hot water is collected in the washing machine, the start / pause switch button 5 is operated to stop pouring. Even if the operator forgets to stop pouring water, pouring will stop automatically when a predetermined time has passed (about 10 minutes) after the start of tapping.
It should be noted that, after about 10 minutes have passed since the start of hot water discharge, a sufficient amount of hot water is accumulated in the washing machine to prevent the hot water from overflowing from the washing machine and to prevent waste.

To start the operation in the next operation mode (rinse mode) after the washing is completed, the start / pause switch button 5 is operated. Then, "water" is selected by the washing water / warm water selection means 21, and the rinse selection button 7 is selected.
The “water” indicator lamp 9 in illuminates. When hot water is to be poured, the rinse selection button 7 is pressed again. When the rinsing is completed and the start / pause switch button 5 is operated, the water is stopped. Even if you forget to stop the water, after washing the machine for a certain amount of time (about 2
Water will stop automatically after 5 minutes). The reason for setting the time to about 25 minutes is that the rinse operation may be performed while water is being injected. Further, when the washing is continued, the washing operation can be started by operating the start / pause switch button 5.

Next, the case of using a fully automatic washing machine will be described. When the automatic / two-layer type changeover switch 8 is switched to the fully automatic mode, the washing machine type determination means 19 sends a signal S1 indicating that the automatic mode is used to the control mechanism 24. Next, the power switch button 4 is operated to perform the washing operation. At this time, "hot water" is preferentially set and poured into the washing machine. When "water" or "wool" is to be poured (pouring), the washing selection button 6 is pressed. When the set time (8 minutes) has elapsed after the start of pouring, the washing operation is automatically switched to the rinsing operation, "water" is selected, and water is poured into the washing machine. When using "hot water",
A selection operation is performed using the rinse selection button 7. When the rinsing operation is completed, the washing is completed and the water is automatically stopped. In addition, when continuing washing, operate the start / pause switch button 5 to put the operation in a paused state,
By operating the start / pause switch button 5 again, the washing operation is started, "hot water" is preferentially set and poured into the washing machine, and the washing operation can be executed.

An embodiment of the hot and cold water mixing apparatus 1 according to the present invention has been described above. However, as shown in FIG. 4, the housing 2 of the hot and cold water mixing apparatus 1 is embedded in the wall of the washing machine room, and the housing 2 is provided. Therefore, it is also possible to separate the operation unit 30 having the operation buttons such as the power switch button 4 described above and to make it a remote operation type which is attached above the washing machine.

According to this method, it can be applied even when it is difficult to install the hot and cold water mixing apparatus 1 due to a space problem in the washing machine room, and the operation unit 30 is provided in the vicinity of the washing machine to improve operability. To do.

[0019]

As described above, according to the present invention, simple operation
It is possible to wash with warm water without waste.

[0020]

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of a hot and cold water mixing apparatus according to the present invention.

FIG. 2 is a system diagram showing an embodiment of a hot and cold water mixing apparatus according to the present invention.

FIG. 3 is a block diagram of a control unit of the hot and cold water mixing apparatus in FIGS. 1 and 2.

FIG. 4 is an explanatory view showing another embodiment of the hot and cold water mixing apparatus according to the present invention.

[Explanation of symbols]

1 Hot / Water Mixing Device 2 Housing 3 Operation Panel 4 Power Switch Button 5 Start / Pause Switch Button 6 Washing Selection Button 7 Rinsing Selection Button 8 Fully Automatic / Two-Layer Type Changeover Switch 9 Indicator Lamp 10 Hot Water / Water Mixing Valve 11 Hot Water Flow Path 12 Water flow path 13 Water stop valve 14 Check valve 15 Hot water mixing flow path 16 Temperature sensor 17 Bypass valve 18 Control section 19 Washing machine type determination means 20, 21 Washing water / hot water selection means 22 Power switch 23 Start / pause switch 24 Control Mechanism 25 Rotary drive motor 26 Cam

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junko Sugiyama, 201 Nishidahara, Shin-Kashiwabara, Fuji City, Shizuoka Prefecture Takagi Industrial Co., Ltd.

Claims (2)

[Claims] 1. A washing water / warm water selecting means applicable to washing in a plurality of operation modes of a washing machine, which is connected to a water pipe of the washing machine to supply an appropriate amount of hot water to the washing machine. A hot and cold water mixing device characterized by being configured to supply. 2. A hot water flow path and a water flow path, each of which has a water shutoff valve and a check valve interposed therebetween, are joined together via a hot water mix valve, and the temperature of the mixed hot water mixed by the hot water mix valve is detected. A plurality of washing water / hot water selecting means for configuring hot water mixing flow path to the washing machine via the hot water temperature detecting means, for selecting water or hot water to be used for washing, and washing machine type switching for switching according to the type of washing machine used Means and a controller for controlling the opening degree of the hot water mixing valve based on the detection signal of the hot water temperature detecting means and the switching signal of the washing machine type switching means.