JPH0391652A - Bath device - Google Patents

Abstract

PURPOSE:To simplify the control of a bath device by additionally boiling based on a hot water detection signal, a remaining water detection signal, and a signal of a temperature up signal being turned on, and increasing the temperature of bath water over the standard temperature when the hot water detection signal is not transmitted when the temperature switch is tuned on. CONSTITUTION:When a temperature up switch 6 is turned on under the condition where no temperature detection signal and remaining water detection signal (the output of a water level comparator 51) are transmitted, the both water can be additionally boiled based on the turn-on signal, the remaining water detection signal of a water level comparator 51. When the bath water remaining in a bath tub 1 is cooled to a considerable extent and lowered to a temperature preset by a lower limit temperature set point station setter 45 and below, a hot water detection signal is not transmitted from a temperature comparator 46 which compares the output of a temperature gauge 24 with the output of the lower limit set point station setter 45. When an attempt is made to turn on the temperature up switch 6 under this condition, the batch water is continuously increased until a standard temperature is available. When the temperature up switch 6 is handled by mistake, the water can be heated at a stroke. It is, therefore, possible to simplify the handing of the bath device.

Description

[Detailed Description of the Invention] [Field of Application and Summary of the Invention] The present invention relates to a bath device, and when a temperature increase switch is turned on to raise the temperature inside the bathtub by a certain amount, the inside of the bathtub becomes considerably cold. When the bathtub is in a low temperature state, the inside of the bathtub is heated all at once to a certain temperature, thereby preventing the inconvenience of having to operate the temperature increase switch many times. .

[Prior Art and Issues] Recently, improvements have been made to the functionality of bath equipment, including a self-filling function that stops the water filling operation when the water level in the bathtub reaches a certain level, and a function that allows the wood in the bathtub to be reheated for a certain period of time. By doing so,
BACKGROUND ART Bath apparatuses that have an automatic temperature raising function that raises the temperature of the water by a fixed temperature have become known.

This kind of bath equipment has a configuration as shown in Fig. 4, for example, and the reheating circuit (21) formed to circulate between the bathtub (1) and the reheating heat exchanger (2) has a A pump (P), a water level gauge (22) for detecting the water level in the bathtub, and a water temperature gauge (20) are installed. Circuit (31)
is piped.

On the other hand, on the bathroom wall, there is a hot water fill switch (0) and a bathtub (1).
) is used to heat the unit to a certain temperature (8).
), and a reheating switch (7) that is operated to reheat the inside of the bathtub (1) to a desired temperature.

With this one, when you turn on the hot water filling switch (4), the first
Flip-flop (hereinafter referred to as the first FF) (4
The hot water supply mechanism (3) is activated by the signal 1) to supply hot water at a constant temperature to the bathtub (1), thereby starting a hot water filling operation.

Then, the water level in the bathtub (1) is adjusted to the water level setting device (42).
), when the water level reaches the target water level set in m1FF (4
1) is reset and the hot water filling operation is completed.

Next, if it is necessary to slightly warm up the inside of the bathtub (1) after the above-mentioned filling is completed, all you have to do is turn on the temperature increase switch (8).
81) emits a signal for a certain period of time, then the signal becomes
The reheating gas burner (23) is connected via the OR circuit (62).
) is applied to the gas valve (25) inserted in the gas circuit to open the gas valve (25), and at the same time, the circulation pump (P) is driven, and the bathing water in the bathtub (1) is reheated for a certain period of time.

This ensures that the bathing water in the bathtub (L) remains at a constant temperature (usually 2
℃).

Also, if the inside of the bathtub (1) becomes considerably cold due to the temperature of the cold water dropping, etc., it is sufficient to turn on the reheating switch (7), and when the reheating switch (7) is turned on, the second heating switch (7) is turned on. 2
Pre-flop (hereinafter referred to as 2nd FF') (
The signal 70) is applied to the OR circuit (62), and the reheating operation starts in the same way as when the temperature increase switch (8) is turned on.

Then, the output of the water thermometer (20) that detects the temperature inside the bathtub (1) is the reheating temperature setting device (71) that indicates the desired reheating temperature.
), a signal is output from the comparator (72) that compares these two outputs, the second F F (70) is reset, and the reheating operation is stopped.

However, with the above-mentioned conventional bath device, when the bathing water is relatively cold, the temperature increase switch (8) may have to be operated several times, which causes the problem that the operation becomes complicated. Male.

To address the above problem in more detail, the perceived temperature that a bather receives from the bathing water varies considerably depending on environmental conditions such as the outside temperature.For example, when the body is cold during the cold winter season, When you take a bath downstairs, the temperature of the bathing water feels much higher than the actual temperature.

Therefore, if the bathing water feels slightly lukewarm under these conditions, the temperature of the water is often considerably lower than the standard bathing temperature (generally preferred bathing temperature).

Under the above conditions, if the temperature increase switch (8) is turned on to raise the temperature of the bath water to a certain level (usually about 2 degrees Celsius), the bather who has warmed up by taking a bath may still feel that the bath water is lukewarm. Therefore, the temperature increase switch (8) must be turned on again.

In this way, with the above-mentioned conventional system, when the bathing water is considerably cold, the temperature increase switch (8) may have to be operated several times, making the operation complicated. .

The present invention has been developed in view of the above points, and includes a water thermometer (20) that detects the temperature inside the bathtub (1), and a temperature increase switch (8) that is turned on when heating the inside of the bathtub (1) by a certain temperature. If the temperature inside the bathtub (1) is considerably lower than the standard bathing temperature when the temperature increase switch (8) is operated, the temperature increase switch (8) is turned off. The object is to raise the temperature of the inside of a bathtub (1) at once to a standard temperature or higher by multiple operations, thereby making it possible to easily operate a bathing device.

[Means] The technical means of the present invention for solving the above problems will be described with reference to FIG. A lower limit temperature setter (45) compares the output signal of the lower limit temperature setter (45) with the temperature signal output by the water thermometer (20) and outputs a hot water detection signal if the latter signal indicates a higher temperature. A comparator (48), a water level setting device (5) that sets a reference water level, and a comparison between the output signal of the water level setting device (5) and the water level signal of the water level meter (22) that detects the actual water level in the bathtub. A water level comparator (51) is provided which outputs a residual water detection signal when the water level indicated by the latter signal is large.
), a residual water detection signal from the water level comparator (51), and a turn-on signal from the temperature increase switch (8), the bathtub (1) is reheated for a certain period of time or until the temperature rises to a certain level. Turn on the temperature increase switch (8) to increase the temperature.
If the temperature comparator (48) does not output a hot water detection signal when the bathtub (1) is turned on, the temperature inside the bathtub (1) is raised until it reaches the standard bathing temperature.

[Effect] The above technical means works as follows.

First, a case will be described in which a certain amount of warm bathing water exists in the bathtub 0).

When the water in the bathtub reaches a water level higher than the reference water level set on the water level setting device (5), the output of the water level meter (22) that detects the actual water level in bath #5 (1) will be as above. It becomes larger than the output of the water level setting device (5). Then, a residual water detection signal is output from the water level comparator (51) that compares these two signals.

Further, if the temperature of the bathing water detected by the water thermometer (24) is higher than the temperature indicated by the output signal (signal indicating standard bathing temperature) of the lower limit temperature setting device (45), these two outputs are compared. A hot water detection signal is output from the temperature comparator (48).

Then, the hot water detection signal and the residual water detection signal (
When the temperature increase switch (8) is turned on under the condition that the output of the water level comparator (51) is being output.

The input signal of the temperature increase switch (8) and the water level comparator (
Based on the residual water detection signal of 51) and the hot water detection signal of the temperature comparator (48), the interior of the bathtub (1) is reheated for a certain period of time or until the temperature rises to a certain extent.

As a result, when the inside of the bathtub (1) which has become slightly lukewarm is to be heated by a certain temperature, the inside of the bathtub (1) is heated by a certain temperature by operating the temperature increase switch (8).

Next, a case will be described in which the bathing water remaining in the bathtub (1) is considerably cold.

When the bathing water in the bathtub (1) becomes considerably cold and its temperature is lower than the temperature set in the lower limit temperature setting device (45), a water thermometer (
The temperature comparator (48) that compares the output of the lower limit temperature setter (45) with the output of the lower limit temperature setter (45) no longer outputs a hot water detection signal. If the temperature increase switch (8) is turned on under these conditions where the hot water detection signal is not output, the temperature inside the bathtub (1) will be raised until it reaches the standard bathing temperature or higher. If you accidentally operate the temperature increase switch (8) when the inside of the bathtub (1) is already quite cold, the inside of the bathtub (1) will be heated all at once until it reaches the standard bathing temperature or higher. .

[effect] The present invention has the following unique effects.

If the temperature inside the bathtub (1) is considerably lower than the standard bathing temperature when the temperature increase switch (8) is operated, the bathtub (1) can be heated by operating the temperature increase switch (8) - times. )
Compared to the conventional method described above, where the temperature rise switch (8) may have to be operated many times by mistake under the above-mentioned temperature conditions, because the temperature is raised all at once until the internal temperature reaches the standard temperature or higher. , the operation of the bath equipment becomes simple.

[Example] Next, the above-described example of the present invention will be described in detail with reference to the drawings.

As shown in Figure 2, the bathtub (1) and the wall heat exchanger (
2) The walled circuit (21
) is provided with a water temperature gauge (24), a circulation pump (P), and a water level gauge (22), as in the conventional system described above.

The walled circuit (21) includes a hot water supply heat exchanger (30)
The hot water filling circuit (31) drawn out from the is connected,
A hot water supply temperature sensor (35) and a hot water filling valve (32) are inserted into the hot water filling circuit (31). Further, a hot water supply gas valve (34) is inserted into the gas circuit to the hot water supply gas burner (33) that heats the hot water supply heat exchanger (30).

On the other hand, on the bathroom wall, there is a temperature increase switch (8) that is turned on when heating the inside of the bathtub (L) by a certain temperature, and a water difference switch (1) that is operated when the inside of the hot bathtub (1) is heated to a certain temperature.
1), a water refill switch (12) that is operated when refilling the bathtub (1) with hot water, and an automatic switch (14).

Each part, such as the hot water supply gas valve (34) and hot water filling valve (32), is controlled by a control device a! in which a microcomputer (hereinafter abbreviated as microcomputer) is stored. (15), and a control program as shown in the flowchart of FIG. 3 is written in the microcomputer.

Next, the operation of the bath apparatus according to the embodiment of the present invention will be explained according to the flowchart shown in FIG.

■0 When the power switch (not shown) is turned on, the hot water filling temperature (↑) is set to 42°C, which is the standard bathing temperature, and the hot water filling water level (H) is set to the standard water level (70C layer in this example). (See step 80 in the drawing).

11 Next automatic switch (14), temperature increase switch (8)
, the differential water switch (11), or the refill water switch (12) is turned on (see step number (81) in the drawing).

■When the automatic switch (14) is turned on, the water level gauge (2)
Regardless of whether the water level in the bathtub (1) is filled or not, if the water level in the bathtub (1) is lower than the filled water level (H) according to the output of 2), the hot water supply gas burner (33) inserted into the gas circuit to the hot water supply gas burner (33) Open the gas valve (34,) and the hot water filling valve (32)
, and this starts the filling operation. During the hot water filling operation, the hot water supply gas is heated so that the hot water at the hot water filling temperature (T) (set to 42°C in the step (3) above) is boiled in the hot water supply heat exchanger (30). valve(
34)) (drawing reference numbers (82), (
(See step 83)), or if the water level in the bathtub (1) is already at the dry water level (l()), step (2) described below is performed. executed.

■9 Next, the output of the water level meter (22) is used to monitor whether the water level in the bathtub (1) has reached the filling level (H), and at the time of monitoring, the temperature increase switch (8) is also activated. A subroutine (75) is executed to check whether or not the differential water switch (11) and the refill water switch (12) are turned on.
When it is confirmed that the temperature increase switch (8) has been turned on in the process of the subroutine (75), the hot water filling temperature (T) is set to 4.
If you confirm that the water difference switch (11) is turned on, set the hot water filling temperature (T) to 41"C.
Then, after determining whether or not the water replenishment switch (12) has been turned on, the subroutine work is completed and the program returns to the main program. or.

When the water replenishment switch (12) is operated in the above subroutine process, the water filling level (+) is reset to 80 Cm, and then a signal is sent to the gas circuit to the reheating gas burner (23) to stop reheating. Inserted reheating gas valve (28
) is issued, the water level in the bathtub is determined as to whether or not it has reached the filling water level (H).
Program control is transferred to step 82). When the water filling operation progresses and the water level in the bathtub (1) reaches the water filling level (H), the hot water supply gas burner (33) is extinguished and the hot water filling valve (32) is closed. After the filling operation is stopped, the next step (2) is executed to determine whether the temperature in the bathtub (1) has reached the filling temperature (T) (see step 80 in the drawing).

■0 Next, step (85) in the drawing is executed to check whether the temperature in the bathtub (1) is at the filling temperature (T) by determining the output of the water thermometer (24).
1) If the temperature inside reaches the hot water filling temperature (↑), complete the hot water filling operation. If the differential water switch (11) is turned on during the hot water filling operation and this turning on is confirmed when the above subroutine is executed, the hot water filling temperature (11) is turned on as described above.
Since T) has been changed to 41° C., the temperature inside the bathtub (1) in the above-mentioned filled state becomes 41° C., thereby completing the lukewarm filling. Similarly, if the temperature increase switch (8) is turned on during the hot water filling operation, the hot water filling temperature (↑) has been changed to 44°C, so hot water can be filled. That will happen.

When the above-mentioned hot water filling operation is completed, a warming operation is executed to keep the inside of the bathtub (1) warm for a certain period of time (4 hours in this embodiment), and then the program control returns to the process (2) described above. In this embodiment, the subroutine (75) is always executed even in the step (91) in the drawing.
is executed, and monitoring is performed to see if the temperature increase switch (8) or the like is turned on.

■9 Next, as a result of checking the temperature inside the bathtub (1) in step (■) above, if it is lower than the hot water filling temperature (T), open the reheating gas valve (2B) and turn on the reheating gas burner. (23
) and drives the circulation pump (P), thereby starting a reheating operation to warm the inside of the bathtub (1) (
During the reheating control, the reheating operation proceeds while the subroutine (75) is executed.

00Next, while carrying out the step (2) mentioned above, if the automatic switch (14) is not turned on and the temperature increase switch (8) is turned on alone, the output of the water level gauge (22) will cause the bathtub to In this embodiment, the reheating circuit (21) is connected to two openings that open to the bathtub (1). The opening (27) (second
It is determined that bath water remains in the bathtub (1) only when the water level in the bathtub is higher than the water level (see figure). That is, the height of the opening (27) formed in the side wall of the bathtub (1) is compared with the actual water level in the bathtub (1) indicated by the output signal of the water level meter (22). (22)
A residual water detection signal is issued when the water level indicated by the signal is high. In this embodiment, the opening (27)
A part of the memory in the microcomputer that stores the height of the water level corresponds to the water level setter (5) described in the technical means section. Further, the functional unit in the microcomputer that compares the height of the opening (27) with the actual water level in the bathtub (1) detected by the water level meter (22) is the water level comparator described in the technical means section. (
51).

When the water in the bathtub remains in the bath 41(1), the temperature of the remaining water is further increased to 37°C (automatic switch (14)).
The temperature at which hot water is automatically filled is 42℃ when the chisel is operated.
It is determined whether or not the temperature in the bathtub (1) is higher than or equal to the value set 5 degrees Celsius lower than the above temperature.
The wall-building gas burner (23) is ignited to create walls in the bathtub (1) for only 3 minutes, and then the program control returns to step (2). In this example, the above 37°C
The memory in the microcomputer that stores the temperature in the bathtub (1) corresponds to the lower limit temperature setter (45) described in the technical means described above, and the temperature in the bathtub (1) indicated by the temperature and the water thermometer (24). The functional unit in the microcomputer that compares the actual temperature corresponds to the temperature comparator (4th day) described in the technical means section.

On the other hand, in this case, as a result of determining the presence or absence of residual water in the bathtub (1) and its temperature, it is determined that there is no residual water in the bathtub (1), or even if the residual water exists, the temperature is above the above level. If it is lower than 37℃, reset the hot water filling temperature (1) to 44℃, proceed to step ① above, and turn on the automatic switch (1).
0 is added (however, the hot water filling temperature (T) is 44℃
). In other words, the water is filled slightly hotter than the standard bathing temperature of 42°C.

■0Next, when performing the process of ■ already mentioned, the automatic switch (14) is not turned on and the water difference switch (11) is turned on.
When the water is poured alone, the bathtub (1
), and also determines whether the temperature of the bathing water is 37° C. or higher (see step number (89) in the drawing). If the temperature is above ℃, turn on the hot water gas burner (33)
Open the hot water filling valve (32) while maintaining the extinguishing state,
As a result, the cold water of 101 is supplied into the bathtub (1) to perform the pouring operation, and the cold water for the water is stored in L and is to! L
In order to judge whether or not the temperature has reached 100, it is determined by judging the output of the water meter (3B) inserted into the hot water filling circuit (31).

On the other hand, as in step (1) above, there may be cases where there is no residual water in the bathtub (1), or even if the residual water is present, the temperature is 3.
If the temperature is lower than 7°C, the hot water filling temperature (T) is reset to 41°C, and then the process proceeds to step (2) above, where the hot water filling operation is performed.

■Finally, while executing the process of Φ mentioned above,
The automatic switch (14) is not turned on and the water replenishment switch (12)
) is added alone, the drawing code (90
)), if the bathing water in the bathtub (1) is 37°C or higher, open the hot water supply gas valve (34) to burn the hot water gas svarna (33), and open the hot water filling valve ( 3
2), thereby supplying 20 fL of 42°C hot water into the bathtub (1).

As mentioned above, in the above, automatic switch (14)
When the temperature increase switch (8) is operated independently without turning on the water, the temperature increase switch (8) will be activated properly after determining the presence or absence of bath water in the bathtub (1) and its temperature. Only when it is thought that the bathtub (1) has been operated, the operation of increasing the temperature of the bathtub (1) by a certain amount proceeds.

The above embodiment is equipped with a wall switch (not shown), and when the wall switch is turned on, the temperature set in the hot water temperature setting device (not shown) is adjusted as in the conventional system described above. Figure 1 is a conceptual diagram of the present invention, Figure 2 is a circuit diagram of an embodiment of the present invention, and Figure 3 is a control device (15).
FIG. 4 is an explanatory diagram of a conventional example. )...Water level setting device (8)...Temperature increase switch (22)...Water level gauge.

(45)・・Lowest temperature setting device (48)・・Temperature comparator (51)...Water level comparator

Claims (1)

[Claims] A bath device equipped with a water thermometer (24) that detects the temperature inside the bathtub (1) and a temperature increase switch (8) that is turned on when heating the inside of the bathtub (1) by a certain temperature. Lower limit temperature setting device with a predetermined lower temperature set (
45), and a temperature comparator (45) which compares the output signal of the lower limit temperature setter (45) and the temperature signal output by the water thermometer (24) and outputs a hot water detection signal when the temperature indicated by the latter signal is high.
48), a water level setting device (5) that sets a reference water level, and the output signal of the water level setting device (5) and the water level signal of a water level meter (22) that detects the actual water level in the bathtub. A water level comparator (51) is provided which outputs a residual water detection signal when the water level indicated by the signal is large, and the hot water detection signal outputted by the temperature comparator (48) and the residual water detection signal outputted by the water level comparator (51) are combined. Furthermore, when there is a signal to turn on the temperature increase switch (8), the inside of the bathtub (1) is reheated for a certain period of time or until the temperature rises to a certain degree, and when the temperature rise switch (8) is turned on, the temperature comparator (48 ) is not outputting a hot water detection signal, the bath device (1) raises the temperature inside the bathtub (1) until it reaches a standard bathing temperature or higher.