JPH04132358U - automatic bath device - Google Patents

Abstract

(57) [Summary] [Purpose] This is an automatic bath device for home use that can automatically fill the bath with hot water, add hot water, and reheat the bath, making bathing more comfortable. [Structure] After filling hot water from the hot water supply circuit 10 to the bathtub 13 at the set water level, it is reheated to the set temperature T ₁ , and then the set temperature T ₁ is further heated.
After adding several 10 liters of hot water, the water level sensor 18 monitors bathing and when it detects bathing, it reheats the bath with a small amount of combustion up to a predetermined temperature _T2 , which is several degrees higher than the set temperature. .

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea uses gas, oil, etc. as fuel and is equipped with a heat exchanger for hot water supply and a heat exchanger for baths. In addition, there is a home-use appliance that can automatically fill the bathtub with hot water, add water, and reheat the bathtub. This invention relates to a moving bath device.

0002

[Conventional technology]

Conventionally, this type of device has been disclosed, for example, in Japanese Patent Publication No. 2-140554. As shown, the temperature of filling the bathtub with hot water is a certain temperature lower than the set temperature. The water is filled up to the set water level, and then when a bath is detected, the set temperature is The temperature of the water is low at the beginning of the bath, and gradually increases during the bath. It was designed to allow a comfortable bathing experience by rising.

0003

[Problem that the idea aims to solve]

By the way, with this conventional bath, the temperature of the water at the beginning of the bath is lower than the set temperature, so it is difficult to set the temperature. Users attempting to bathe in fixed-temperature water may feel unwell, and may not be able to operate the bath. There are defects that can be mistaken for mistakes or malfunctions. In addition, in order to obtain a comfortable bath, the amount of water as well as the temperature of the water has a large effect, and this This was not something that was taken into account.

0004

[Means to solve the problem]

This invention focused on this point, and in order to solve the above drawbacks, the structure was specifically designed to A hot water supply circuit equipped with an exchanger, a bath circulation circuit connecting a bathtub and a bath heat exchanger, and a It is equipped with a hot water filling circuit that connects the hot water supply circuit and the bath circulation circuit, and is equipped with a hot water supply heat exchanger. Heated hot water is filled into the bathtub via a hot water filling circuit and a bath circulation circuit, and this hot water is It detects that the water level has reached the set water level and automatically stops filling the water. In an automatic bath device that uses a bath heat exchanger to reheat the water up to a preset water temperature, the reheating After bathing, add several 10 liters of hot water at the set temperature, monitor bathing, and detect bathing. In such cases, reheat the fire with a small amount of combustion until it reaches a predetermined temperature several degrees higher than the set temperature. It is something that

[0005]

[Effect]

When a person enters the bathtub, the temperature of the water in the bathtub is maintained at the set temperature, and the bather does not feel any discomfort. You can take a bath at the desired temperature without having to hold it, and the amount of water when taking a bath is small. It provides a refreshing bath with plenty of hot water, and if it detects that you are taking a bath, it will automatically adjust the set temperature. The water temperature is reheated to a predetermined temperature several degrees higher than the temperature, and when the body becomes accustomed to the water temperature, the water temperature is automatically adjusted. Since the temperature is raised several degrees, a more comfortable bathing experience can be obtained.

[0006]

【Example】

Next, the automatic bath device according to this invention will be explained with reference to a preferred embodiment shown in the drawings. I will clarify. 1 is connected to the same fin as the bath heat exchanger 2 and heated by one burner (not shown). This is a one-can, two-channel hot water supply heat exchanger that heats the first flow sensor 3 and the water inlet server. An inlet pipe 5 equipped with a mister 4 and connected to the city water supply, a heating prevention thermostat 6 and a dry firing electrode 7 A hot water supply circuit 10 is constituted by a hot water outlet pipe 9 equipped with a water proportional valve 8 and a water proportional valve 8. Ru.

[0007] Also, in the middle of the heat exchanger 1 for hot water supply, there is a hot water outlet that detects the hot water temperature and controls the combustion of the burner. A thermistor 11 is provided. 12 is an outgoing pipe connecting the bathtub 13 and the bath heat exchanger 2, which detects the water level in the bathtub 13. A pressure-type water level sensor 14, an electric two-way valve 15, a self-priming circulation pump 16, and Bath heating prevention thermo 17, bath thermistor 18, flow switch 19, electric three It is equipped with a direction valve 20, and together with a return pipe 21 constitutes a bath circulation circuit 22.

[0008] 23 has its passage switched by the electric three-way valve 20 and bypasses the bath heat exchanger 2. This is a bypass circuit that connects the outgoing pipe 12 and the returning pipe 21. 24 is the circulation pump 16 discharge side of the bath circulation circuit 22 and the hot water outlet pipe 9 of the hot water supply circuit 10. This is a hot water filling circuit that communicates with the hot water supply circuit 10 and fills the bathtub 13 with hot water. From the circulation circuit 22 side, a check valve 25, an edge valve 26, a water solenoid valve 27, and a second flow sensor. 28 in order.

[0009] Next, to explain the block diagram of the control circuit shown in Fig. 2, 29 is a comparison/operation block diagram. A microcomputer with calculation, memory, and timekeeping functions, and a comfortable bathing system on the input side. A special bath switch 30 that you press when you are about to heat the bath, sets the reheating temperature of the bath. A hot water temperature setting means 31, a water level setting means 32 for setting the desired water level of the bathtub 13, and a hot water tap service. mister 11, water level sensor 14, bath thermistor 18, and second flow sensor 2 8 are connected to each other.

0010 Also, on the output side of the microcomputer 29, a water level sensor 14 is connected to the bathtub 1 when filling with hot water. Electric two-way valve 15, circulation pump 16, and combustion of the burner are controlled so that only the third side communicates. The combustion control circuit 33 that controls the water and the hot water passage when filling the hot water are switched to the bypass circuit 23 side. The electric three-way valve 20 that opens the hot water filling circuit 24 and the water solenoid valve 27 that opens the hot water filling circuit 24 are connected to each other. has been done.

Next, the operation of this embodiment of the invention will be explained according to the flowchart shown in FIG. First, after setting the preheating temperature T ₁ with the hot water temperature setting means 31 and the desired water level for bathing with the water level setting means 32, press the special bath switch 30 (step 34). Detects water and calculates the amount of hot water to fill up to the set water level.

Next, in step 36, the electric three-way valve 20 is switched to communicate with the bypass circuit 23 side, and the bath heat exchanger 2 side is closed, and after the electric two-way valve 15 is closed, the water solenoid valve 27 is opened. This constitutes a passage from the hot water supply circuit 10 to the bath circulation circuit 22 via the hot water filling circuit 24. Then, in step 37, while the hot water temperature is detected by the hot water tap thermistor 11, the burner is controlled by the combustion control circuit 33 to fill the bathtub 13 with hot water at the set temperature T1 _-1.5 °C.

[0013] Next, in step 38, the second flow sensor 28 detects whether the amount of hot water filled has reached the amount of water calculated in step 35. If NO, the process returns to step 37, or if YES, the process proceeds to step 39. In this step 39, after stopping the hot water filling operation, the circulation pump 16 is driven and the electric three-way valve 20 is switched to configure the original bath circulation circuit 22 communicating with the bath heat exchanger 2 side to set the temperature. The reheating operation is started up to _T1 , and then the bath thermistor 18 reaches step 40 in which it is determined whether the bath water temperature due to the reheating has reached the set temperature _T1 , and if YES, step 41 is reached. In normal automatic bath operation, the heating operation starts and ends after this, but in this special bath operation, the bath proceeds to the following steps.

That is, the process proceeds to step 42, where the bathtub 13 is filled with additional hot water of several 10 liters, here 25 liters, of hot water at the set temperature _T1 , and then, in step 43, a melody is sounded to notify the user that it is possible to take a bath. This is to inform the public. After that, in step 44, the bathing is monitored and the water level sensor 14 determines whether the water level in the bathtub 13 has risen by 4 cm.If YES, the process proceeds to step 45, and it is determined whether the 4 cm rise continues for 40 seconds, that is, by checking the water temperature and stirring. It is judged from this elapsed time whether or not there was a bath, and if the answer is YES, the circulation pump 16 is driven and slow reheating is started in step 46 in which the burner is burnt at the minimum power, and in step 47 the bath service is started. - Continue this reheating until the bath thermistor 18 detects a predetermined temperature _T2 that is 1.5°C higher than the set temperature _T1 , and if the bath thermistor 18 detects the predetermined temperature _T2 (YES), proceed to step 48 and start reheating slowly. After that, the heating operation starts at step 49 for 4 hours.

[0015]Accordingly, after the bathtub 13 is detected to be bathed, it is slowly reheated and the water temperature is raised to a predetermined temperature _T2 , which is several degrees higher than the set temperature _T1 , so that the body adjusts to the water temperature at the beginning of the bath and feels lukewarm. The water temperature automatically rises as you bathe, allowing you to take a comfortable bath.Also, since the amount of hot water is higher than the set water level when you take a bath, you can enjoy a relaxing and relaxing bath, further improving your comfort. It is.

[0016]

[Effect of the idea]

In short, this invention consists of a hot water supply circuit 10 equipped with a heat exchanger 1 for hot water supply, a bathtub 13, A bath circulation circuit 22 that connects the bath heat exchanger 2, and a bath circulation circuit that connects the hot water supply circuit 10 and the bath circulation circuit. The hot water filling circuit 24 is connected to the hot water supply channel 22, and the hot water heated by the hot water supply heat exchanger 1 is provided. is filled into the bathtub 13 via the hot water filling circuit 24 and the bath circulation circuit 22, and this hot water is It detects that the water level has reached the set water level and automatically stops filling the water. In an automatic bath device that uses a bath heat exchanger 2 to reheat the water up to a preset temperature, After the heating is finished, add several 10 liters of hot water at the set temperature, then monitor and check the bathing. When this is detected, the fire will be reheated with a small combustion amount to a predetermined temperature several degrees higher than the set temperature. This means that you can take a bath at the set temperature from the beginning of your bath, and you can take a bath at the set temperature as usual. It is possible to take a bath with peace of mind without feeling any discomfort. After detecting someone taking a bath, the system slowly reheats the flame to a predetermined temperature several degrees higher than the predetermined temperature. The water temperature will rise automatically when your body gets used to the water temperature at the beginning of the bath. You can always enjoy a relaxing bath by filling the water slightly higher than the set water level. This will allow you to enjoy a relaxing bath.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an automatic bath device to which an embodiment of the invention is attached.

FIG. 2 is a block diagram of main parts of the control circuit.

FIG. 3 is a flowchart of the main parts.

[Explanation of symbols]

1 Heat exchanger for hot water supply 2 Bath heat exchanger 10 Hot water supply circuit 13 Bathtub 22 Bath circulation circuit 24 Hot water filling circuit

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Naotaka Aizawa Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho (72) Creator Kikuo Hara Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho (72) Creator Michio Nakagawa Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho (72) Creator Toshio Hirokawa Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho (72) Creator Yuichi Kawamura Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho (72) Creator Masato Sato Inside the Co., Ltd., 7-7 Higashishinbo, Sanjo City, Niigata Prefecture Inside the Ta Seisakusho

Claims (1)

[Scope of utility model registration request] [Claim 1] Hot water supply circuit 10 equipped with a heat exchanger 1 for hot water supply
, a bath circulation circuit 22 that connects the bathtub 13 and the bath heat exchanger 2, and a hot water filling circuit 24 that connects the hot water supply circuit 10 and the bath circulation circuit 22. Hot water is filled into the bathtub 13 via the hot water filling circuit 24 and the bath circulation circuit 22, and when it is detected that the hot water filling level has reached the set water level, the hot water filling is automatically stopped and the set hot water temperature is automatically adjusted. In an automatic bath device that uses a bath heat exchanger 2 to reheat the bath, after the reheating is finished, several tens of liters of hot water at the set temperature is added, and then the bath is monitored, and when a bath is detected, a small amount of combustion is detected. An automatic bath device characterized in that the heating is reheated to a predetermined temperature several degrees higher than the set temperature.