JPH0814414B2 - Bath equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and by supplying bubbles into a bath, the bath water can be made slim without increasing the amount of water in the bath.

[0002]

2. Description of the Related Art As a bath apparatus, Japanese Patent Application No. 1-138
No. 166 was proposed. This has a schematic structure shown in FIG. 4, and a cold water temperature sensor (71) and a cold water valve are provided in a water supply circuit (5) on the upstream side of a water heater (2) in which a bathtub (4) is pipe-connected on the downstream side. (72) is provided. Further, on the downstream side of the cold water temperature sensor (71) and the cold water valve (72),
A hot water circuit (6) drawn from the Taiyo hot water heater (1) is branched and connected, and a hot water temperature sensor (12) and a hot water valve (16) are arranged in the hot water circuit (6). .

A water filling temperature setting device (52) is arranged near the bathtub (4), and the water filling temperature setting device (5) is provided.
The set temperature of 2) and the detected temperature of the hot water temperature sensor (12) are compared by a temperature comparator (61), and the comparison result is sent to the hot water heater (2) as a control signal of the hot water heater (2). Is being applied. The output of the cold water temperature sensor (71) for detecting the temperature of the cold water in the water supply circuit (5) is also applied to the water heater (2). In this case, when the temperature of the hot water supplied from the solar water heater (1) is higher than the set temperature of the hot water temperature setting device (52), the hot water boiled by the solar water heater (1) is bathtub ( After pouring a fixed amount into 4), the water is chilled with the cold water supplied from the water supply circuit (5) to finally adjust the temperature in the bathtub (4) to the temperature set in the water temperature setting device (52). ing.

When the temperature is set by the water filling temperature setting device (52) and the water filling switch (53) is turned on, the hot water circuit (6)
The hot water valve (16) inserted in the valve is opened, the hot water of the solar water heater (1) is supplied to the bathtub (4) side via the water heater (2), and the amount of hot water supplied is in the water heater (2). It is measured by a water meter (not shown). Then, the temperature of the hot water flowing through the hot water circuit (6) is detected by the hot water temperature sensor (12), and when the detected temperature is higher than the set temperature of the hot water temperature setting device (52), the water heater (2). Continue the filling operation while maintaining the non-heated state. On the other hand, in the initial stage of the water filling operation when the water filling switch (53) is turned on, the water supplied from the solar water heater (1) and the water supply circuit (5) detected by the water temperature sensor (12) and the cold water temperature sensor (71). Determine the temperature of. Then, the necessary amount of hot water and cold water to be supplied to the bathtub (4) is calculated so that the inside of the bathtub (4) reaches the set temperature when the filling of water is completed. Then, hot water of the solar water heater (1) is filled in the bathtub (4) by the amount calculated by the calculation, and then the cold water valve (72) is opened instead of the hot water valve (16) in the open state, Similar to the above, the amount of cold water obtained as a result of the calculation is supplied from the water supply circuit (5) to the bathtub (4).

As a result, even if extremely hot water is boiled in the solar water heater (1) during the hot summer months,
The inside of the bathtub (4) after the filling is adjusted to the temperature set by the filling temperature setting device (52). However,
In the above-mentioned conventional one, the bathtub (4) is based on the temperature of the hot water supplied from the solar water heater (1) detected at the initial stage of filling the water.
Since the amount of hot water and the amount of cold water from the water supply circuit (5) that need to be injected into the water heater are calculated in advance, if the temperature of the hot water supplied from the solar water heater (1) changes during filling, The temperature in the bathtub (4) after filling with water may largely deviate from the temperature set by the filling temperature setting device (52). When the temperature in the bathtub (4) after filling with water is higher than the set temperature of the filling water temperature setting device (52), tap water needs to be introduced into the bathtub (4) again. However, there is a problem that the amount of water in the bathtub (4) may increase and may overflow in some cases.

Further, even when filling water with a normal water heater, even when continuously bathing for a person who likes a hot eye bath,
When tap water is poured into the bathtub (4), there is a concern that it will overflow due to an increase in the water level in the bathtub. The present invention has been made in view of the above points, and it is possible to supply air bubbles into the bathtub (4) so that the water can be lubricated without increasing the amount of water in the bathtub (4). Is the task.

[0007]

Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problem is "the air supply circuit (3) connecting the inside and the outside of the bathtub (4) and the air supply valve inserted in the air supply circuit (3). (43), a pump (P) that sucks outside air from the air supply circuit (3) and supplies it to the bathtub (4), a temperature sensor that detects the temperature in the bathtub, and a temperature detected by the temperature sensor. And hot water temperature setting device (5
A temperature comparator that compares the set temperatures of 2) and outputs a slimming request signal when the former temperature is high is provided, and when the slimming request signal is output, the air supply valve (4
3) was opened and the pump (P) was driven. ”

[0008]

The above technical means operates as follows. The temperature of the hot water in the bathtub (4) is detected by the temperature sensor as in the conventional case, and the detected temperature and the set temperature of the filling temperature setting device (52) are compared by the temperature comparator. When the former detected temperature is higher than the latter set temperature,
A slime request signal is output from the temperature comparator,
The luke demand signal causes the air supply valve (43) to open and the pump (P) to start driving.

When the air supply valve (43) is opened, the air supply valve (4)
The inside of the bathtub (4) communicates with the atmosphere through the air supply circuit (3) provided with (3), and further, the air supply valve (which communicates with the atmosphere by driving the pump (P) ( Four
The outside air is sucked from 3) and is continuously supplied as air bubbles into the bathtub (4). Then, the temperature in the bathtub (4) is gradually lowered by the low temperature outside air supplied from the air supply circuit (3), and the detection temperature of the temperature sensor for monitoring the temperature and the filling temperature setting device (52). The set temperature is continuously compared by the temperature comparator. When the temperature in the bathtub detected by the temperature sensor decreases to the set temperature of the hot water temperature setting device (52), the slime request signal output from the temperature comparator for comparing the two temperatures disappears, and the slime request signal is output. The air supply valve (43) that has been opened in the presence of the above condition is returned to the closed state and the pump (P) is also stopped, whereby the operation of supplying the outside air to the bathtub (4) is stopped. That is, bathtub (4)
The inside can be adjusted to the set temperature of the hot water temperature setting device (52).

[0010]

[Effect] The present invention has the following unique effects. Since continuous bubbles are supplied to lower the temperature in the bathtub (4) to the set temperature, there is no inconvenience that the amount of water in the bathtub (4) increases and overflows.

[0011]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. The thing shown in FIGS. 1-3 is what applied this invention to the bath apparatus using the solar water heater. As shown in FIG. 1, the appliance body (A) is installed on the first floor of the building, and the appliance body (A) and the bathtub (4) in the bathroom (C) formed on the second floor have a circulation circuit. They are connected by (31). An air supply circuit (3) having an air supply device (B) is connected to the water discharge side circulation circuit (31) for supplying hot water to the bathtub (4). It is arranged on the outer wall surface of the bathroom (C) and at a position higher than the bathtub (4).

The air supply device (B), the bathtub (4), the instrument body (A) and the like are formed as shown in FIG. On the wall surface of the bathroom (C), a remote operation device (56) including a water filling temperature setting device (52) and a water filling switch (53) is provided, and is located near the bathtub (4) and on the water discharge side. The air supply circuit (3) connected to the circulation circuit (31) is provided with an air supply valve (43), and when the air supply valve (43) is opened, the air supply circuit (3) releases the atmosphere. It is designed to communicate with. Next, in the circulation circuit (31) in the instrument body (A), the pump (P), the heat exchanger for reheating (20), the water level sensor (35), and the temperature sensor (66) are arranged from the upstream side. Inserted in order. Further, on the upstream side of the pump (P), there is a hot water supply circuit (1) drawn from the hot water supply heat exchanger (14).
5) is connected, and a backflow prevention device (19) is provided in the hot water supply circuit (15). Further, a hot water circuit (6) connected to the solar water heater (1) is connected to the upstream side of the hot water supply heat exchanger (14), and the hot water circuit (6) is connected.
A hot water supply temperature sensor (63) and a hot water filling valve (64) are provided in the. Each part of the appliance body (A) is controlled by a control circuit (21) incorporating a microcomputer, and the control circuit (21) has hot water for setting the temperature in the bathtub (4). A remote control device (56) including a tension temperature setting device (52) and a hot water filling switch (53) is connected.

A control program as shown in the flow chart of FIG. 3 is stored in the microcomputer in the control circuit (21) for controlling the appliance body (A) and the air supply device (B), and is shown below. The operation of the bath apparatus of the embodiment will be described with reference to FIG. ． The operation of the water filling switch (53) is monitored, and when it is operated, the water filling valve (64) is opened and the pump (P) inserted in the circulation circuit (31).
Are driven (see step (80) in the drawing). Then, the hot water boiled in the solar water heater (1) begins to be supplied to the bathtub (4) side, and the temperature of the hot water is the hot water supply temperature sensor (6) located on the downstream side of the hot water filling valve (64).
It is detected in 3). ． The temperature of the hot water supplied from the solar water heater (1) detected by the hot water supply temperature sensor (63) is compared with the set temperature of the hot water temperature setting device (52). If the former temperature is high, the water level sensor (35) ) Output is determined to determine whether or not the bath is filled with water at the set water level (see steps (81) and (83) in the drawing). On the other hand, when the temperature of the hot water supplied from the solar water heater (1) is lower than the set temperature of the hot water temperature setting device (52), the hot water supply burner (17) corresponding to the hot water supply heat exchanger (14) is installed. Burning is performed, and the operation of filling the bathtub (4) is advanced while raising the temperature by an insufficient temperature (see step (82) of the drawing). Then, when it is judged from the output of the water level sensor (35) that the bathtub (4) has been filled with water up to the set water level, the water filling valve (64) is closed and the hot water supply burner (17) is set to the burning state. At some time, this is extinguished and the filling operation is stopped (see step (84) in the drawing).

.. Since the pump (P) maintains the driving state from the beginning of the water filling, the hot water in the bathtub (4) is forcibly circulated in the circulation circuit (31) when the water filling operation is stopped. The temperature of the hot water is detected by a temperature sensor (66) attached to the circulation circuit (31), and the detected temperature and the set temperature of the water filling temperature setting device (52) are compared (see the drawing reference (( 841) step).
When these two temperatures are equal, the bubble bath switch (54) is monitored, and when it is turned on, the air supply valve (43) is opened for a certain period of time, and the massage for bathing is performed in the bathtub based on the action described later. Supply air bubbles (drawing code (84
2), (step 843)). Then, the step of reference numeral (841) for determining the temperature in the bathtub detected by the temperature sensor (66) is executed again. Then, the temperature detected by the temperature sensor (66) is judged again (see the step of reference numeral (85) in the drawing), and if the detected temperature is higher than the set temperature, the control operation is moved to the step "" described later, and vice versa. In this case, the control operation is moved to the step "".

In this embodiment, a bubble bath switch (54)
Although the bubbles are supplied to the bathtub (4) for a fixed time when the bubble bath switch (54) is turned on, the bubbles may be supplied until the bubble bath switch (54) is turned on again. or,
When supplying bubbles for this massage, the temperature sensor (6
The temperature of 6) may be monitored, and when it outputs a temperature decrease signal, the reheating burner (25) may be burned to raise the temperature in the bath to the set temperature. ． When the temperature detected by the temperature sensor (66) is higher than the temperature set by the water filling temperature setting device (52), the air supply valve (43) is opened in order to make the inside of the bathtub (4) slim (see the drawing reference ( See step 86)). Then, the air supply circuit (3) communicates with the atmosphere, and the connection between the air supply circuit (3) and the circulation circuit (31) flows toward the bathtub (4) (in the direction of the arrow in FIG. 2). The ejector effect of water occurs, and the outside air is sucked into the circulation circuit (31). That is, the air supply valve (43) → the air supply circuit (3) →
The outside air is supplied from the circulation circuit (31) to the bath (4). As a result, the temperature inside the bathtub (4) gradually decreases, and the temperature inside the bathtub (4) detected by the temperature sensor (66) and the set temperature of the water filling temperature setting device (52) are compared (see the reference numeral (87). )), The air supply valve (43) is closed when the bath temperature falls to the set temperature of the filling temperature setting device (52), whereby the bath temperature is adjusted to the set temperature (see the drawing reference ( 88) step).
Further, in this embodiment, the functional unit in the microcomputer for executing the operation of comparing the detected temperature of the temperature sensor (66) and the set temperature of the water filling temperature setting device (52) has the temperature comparison described in the above-mentioned technical means. Corresponds to the vessel.

After that, the control operation is again performed according to the drawing code (841).
It will be moved to the step of. Then, when the set temperature of the hot water temperature setting device (52) is changed to a low temperature side (for example, when a person who prefers a warm bath takes a bath), the hot water after the change is changed again. Set temperature of tension temperature setting device (52) and bath temperature (temperature sensor (66)
The bathtub (4) is cooled with air bubbles in the same manner as described above until the detected temperatures (1) and (2) are equalized. Thus, according to the above, when the hot water boiled in the solar water heater (1) is used for hot water filling, or when the hot water temperature setting device (52) is set to the low temperature side. When the temperature is changed to, the temperature of the inside of the bathtub (4) is lowered by the air bubbles supplied thereto, so that the amount of water in the bathtub (4) does not increase, and there is no inconvenience if it overflows.

[0017] On the other hand, the drawing code (8
When the step 5) is executed and it is determined that the temperature in the bathtub is lower than the set temperature of the hot water temperature setting device (52), the additional heating burner (20) for heating the additional heating heat exchanger (20). 25) is burned to heat the inside of the bathtub (4) to the temperature set by the hot water temperature setting device (52), and then the heating burner (25) is extinguished to stop the pump (P) ( Drawing reference numbers (85), (90), (91), (92)
See step).

In the above embodiment, the hot water is supplied to the bathtub (4) up to the set water level and then the air supply valve (43) is opened to lower the temperature in the bathtub (4). The air supply valve (43) may be opened while hot water is being supplied to the bathtub (4) to cool the interior of the bathtub (4) while filling with hot water. And a bathtub (4) filled with hot water using the solar water heater
When the temperature is high, the idea of automatically supplying and cooling the bubbles corresponds to the invention of claim 2. Further, when starting the cooling operation in the bathtub (4) after the completion of the filling of water, it is not necessary to drive the pump (P) during the filling of the water.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an installation state of a device body (A) of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a water circuit and a control circuit according to an embodiment of the present invention.

FIG. 3 is a flowchart showing the control operation of the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a conventional example.

[Description of sign]

 (1) ・ ・ ・ Solar water heater (3) ・ ・ ・ Air supply circuit (4) ・ ・ ・ Bathtub (43) ・ ・ ・ Air supply valve (H) ・ ・ ・ Temperature comparator (P) ・ ・ ・ Pump

Front page continued (72) Inventor Hiroyuki Yamada 2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya, Aichi Prefecture, Rinnai Co., Ltd. (56) References: 63-82157 (JP, U) (JP, U)

Claims (2)

[Claims] 1. An air supply circuit (3) connecting the inside and the outside of a bath (4) and an air supply valve (43) inserted in the air supply circuit (3).
A pump (P) that sucks outside air from the air supply circuit (3) and supplies it into the bathtub (4); a temperature sensor that detects the temperature inside the bathtub; A temperature comparator is provided which compares the set temperatures of the temperature setter (52) and outputs a slimming request signal when the former temperature is high. When the slimming request signal is output, the air supply valve is provided until the signal disappears. A bath device in which (43) is opened and the pump (P) is driven. 2. A bath apparatus in which the invention of claim 1 is applied to a bath apparatus having a function of filling hot water boiled by a solar water heater (1) in a bath (4).