JP2017129333A - Bath water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath water heater configured to effectively attract attention on a bath accident.SOLUTION: A bath water heater includes a remote controller 34 having a bath switch 34c and notification means 34a, 34b, and control means 37 of performing hot water supply operation to a bathtub 13 at a setting hot water amount or a setting water level according to operation of the bath switch 34c, wherein storage means 34g of storing attention attracting information on a bath accident in advance is provided. The remote controller 34 is configured to give, in the operation of the bath switch 34c, the attention attracting information stored in the storage means 34g from the notification means 34a, 34b of the remote controller 34.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bath water heater that alerts a bathing accident.

  Conventionally, in this type of bath water heater, as shown in Patent Document 1, a risk value related to a bathing accident is calculated from the temperature difference between the temperature of the bathtub water and the temperature in the bathroom, and a person enters the dressing room or bathroom. When it was detected that there was a bath water heater, the risk value was reported by a remote controller.

JP 2003-225174 A

  However, in this conventional system, the risk value related to a bathing accident is notified at the timing when a person bathes, so the blood pressure of the background against the temperature difference between the room temperature of the bathroom or dressing room and the temperature of the hot water in the bathtub In order to cope with the risk of sudden fluctuations, there is no time delay for taking measures to raise the room temperature in the bathroom or dressing room, and since it is already time for the bather to take a bath, The supporter missed the timing of calling and supporting bathers to prevent bathing accidents, and further improvements were necessary to prevent bathing accidents.

  In order to solve the above-mentioned problems, the present invention comprises a remote controller having a bath switch and a notification means, and a control means for performing a filling operation of a set amount or a set water level to the bathtub according to the operation of the bath switch. In the hot water supply apparatus, a storage means for preliminarily storing warning information regarding a bathing accident is provided, and the remote controller stores the warning information stored in the storage means when the bath switch is operated. The notification means notifies the user.

  According to the present invention, when the bath switch is operated, warning information about a bathing accident is notified, so that the bathroom or the dressing room is heated and the temperature difference between the room temperature of the bathroom or the dressing room and the temperature of the hot water in the bathtub is background. The time allowance to reduce the risk of sudden fluctuations in blood pressure and to reduce the risk of dehydration during bathing by taking enough water before bathing to prevent bathing accidents Can be ensured, and the supporter can help to make appropriate calls and support.

Schematic which shows the structure of one Embodiment of this invention. Control function block diagram of the same embodiment The flowchart for demonstrating the action | operation of the same embodiment The flowchart figure for demonstrating the action | operation of another one Embodiment.

  Next, a bath water heater according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram showing the configuration of a bath hot water supply apparatus. 1 is a hot water storage tank for storing hot water, 2 is a water supply pipe for supplying water to the bottom of the hot water storage tank 1, 3 is a hot water discharge pipe for discharging hot water from the top of the hot water storage tank 1, and 4 is water supply. A water supply bypass pipe branched from the pipe 2, 5 is a hot water supply mixing valve for mixing hot water from the hot water discharge pipe 3 and water from the water supply bypass pipe 4, and 6 is connected to the outlet of the hot water supply mixing valve 5 and the hot water tap 7. A hot water supply pipe, 8 is a hot water supply flow sensor for detecting the flow rate of hot water flowing through the hot water supply pipe 6, 9 is a hot water supply temperature sensor for detecting the temperature of hot water flowing through the hot water supply pipe 6, and 10 is a temperature of water supply flowing through the water supply bypass pipe 4. It is a feed water temperature sensor.

  11 is a bath mixing valve that mixes hot water from the hot water discharge pipe 3 and water from the water supply bypass pipe 4, and 12 is a hot water filling pipe for hot water from the bath mixing valve 11 to the bathtub 13 installed in the bathroom. , 14 is a hot water flow sensor for detecting the flow rate of hot water flowing through the hot water pipe 12, 15 is a hot water temperature sensor for detecting the temperature of hot water flowing through the hot water pipe 12, and 16 is for opening and closing the flow path of the hot water pipe 12. A hot water filling solenoid valve 17 is a hot water storage temperature sensor which is provided in plural above and below the side surface of the hot water storage tank 1 and detects the hot water storage temperature.

  18 is composed of a stainless steel tube arranged in the hot water storage tank 1, and a bath heat exchanger for heating the bathtub water in the bathtub 13, 19 is a bath water circulating through the bathtub 13 and the bath heat exchanger 18. A bath circulation circuit 20 that can be connected, 20 is a bath circulation pump for sucking the bath water in the bathtub 13 and pumping it to the bath heat exchanger 18 to circulate the bath water, and 21 is for detecting the temperature of the bath water The bath temperature sensor 22 is a water level sensor that detects the water level in the bathtub 13 by detecting the water pressure, and a hot water pipe 12 is connected to the bath circulation circuit 19.

  23 is a heat pump type heating means for heating hot water in the hot water storage tank 1, 24 is a heating circulation circuit for connecting hot water tank 1 and the heating means 23 so that hot water can circulate, and 25 is a heating circulation pump for circulating hot water. , 26 is an incoming water temperature sensor for detecting the temperature of hot water entering the heating means 23, and 27 is a boiling temperature sensor for detecting the temperature of the hot water heated by the heating means 23. Here, the heat pump type heating means 23 includes a compressor 28, a water refrigerant heat exchanger 29, an expansion valve 30, an air heat exchanger 31, a blower 32, and an outside air temperature sensor 33 that detects the outside air temperature. ing.

  34 is a remote controller outside the bathroom (remote controller) provided outside the bathroom, and outputs a display unit 34a as a notification unit for notifying the operation state and setting state of the hot water supply device, and pre-stored voice data, notification sound, etc. A speaker 34b, a bath switch 34c for starting the filling of the bathtub 13, a change switch 34d for changing the bath set temperature, another switch 34e, and a control means 34f.

  Reference numeral 35 denotes a bathroom remote controller (remote controller) provided in the bathroom, which outputs a display unit 35a serving as a notification unit for notifying the operating state and setting state of the hot water supply device, and pre-stored voice data, notification sound, and the like. Speaker 35b to perform, bath switch 35c to start filling the bathtub 13, hot water change switch 35d to change the bath set temperature, other switch 35e, and bathroom temperature sensor for detecting the room temperature in the bathroom 36 and a control means 35f.

  Reference numeral 37 denotes a main body control means for controlling the operation of the hot water supply apparatus. The hot water flow rate sensor 8, the hot water temperature sensor 9, the hot water temperature sensor 10, the hot water flow rate sensor 14, the hot water temperature sensor 15, the hot water temperature sensor 17, and the bath temperature sensor. 21, detection values of the water level sensor 22, the outside air temperature sensor 33, and the bathroom temperature sensor 36 are input to control the operation of the hot water mixing valve 5, the bath mixing valve 11, the hot water solenoid valve 16, the bath circulation pump 20, and the heating means 23. In addition, it is connected to the remote controller 34 outside the bathroom and the remote controller 35 inside the bathroom so that necessary information can be transmitted and received. Here, the control means 37 has a logic circuit such as an MPU and controls the operation according to a program stored in advance while referring to the memory.

  Next, the control function block diagram of one embodiment of the present invention shown in FIG. 2 will be described. The main body control means 37 includes a calendar function 37a for counting dates and a determination for determining when a bathing accident is likely to occur. Means 37b are provided.

  The control means 35f of the remote controller 35 in the bathroom is provided with a storage means 35g for preliminarily storing alert information relating to a bathing accident.

  In the storage means 35g, information relating to a countermeasure for preventing a bathing accident is stored as character data to be displayed on the display unit 35a as alerting information, as in the example shown in Table 1 below.

  The control means 34f of the remote controller 34 outside the bathroom is provided with a storage means 34g for preliminarily storing alert information relating to a bathing accident.

  In this storage means 34g, information relating to a countermeasure for preventing a bathing accident is stored as character data to be displayed on the display unit 34a as the alert information, as shown in the example shown in Table 1 above.

  Next, the operation of the bath water heater of the present invention will be described.

<Boiling operation>
When the start time of a predetermined time period (midnight time period) when the power unit price is low is reached, the main body control means 37 causes the heating means 23 to start heating up the amount of hot water corresponding to the hot water supply load so far. The heating means 23 starts to drive the compressor 28, the expansion valve 30, the blower 32, and the heating circulation pump 25, and the hot water taken out from the lower part of the hot water storage tank 1 is sent. The water-refrigerant heat exchanger 29 is heated to the boiling target temperature and returned to the upper part of the hot water storage tank 1, hot water at the set temperature is heated from the upper part of the hot water storage tank 1, and the main body control means 37 When boiling up to the bottom or when the end time of the predetermined time zone is reached, the heating means 23 is instructed to stop the boiling, and the heating means 23 includes the compressor 28, the expansion valve 30, the blower 32, and the heating circulation pump 2. To exit the boiling operation to stop driving.

<Hot water supply>
When the hot-water tap 7 is opened, city water flows into the bottom of the hot water storage tank 1 from the water supply pipe 2 and hot water is discharged from the top of the hot water storage tank 1 through the hot water discharge pipe 3. It is mixed with water from the pipe 4 and passes through the hot water supply pipe 6. When the hot water flow rate sensor 8 detects a minimum working water amount or more, the main body control means 37 feedback-controls the valve opening of the hot water mixing valve 5 so that the temperature detected by the hot water temperature sensor 9 matches the hot water set temperature. Then, hot water is supplied at the set hot water temperature. When the hot water supply flow rate sensor 8 detects that the amount of operating water is less than the minimum operating water amount, for example, when the hot water tap 7 is closed, the main body control unit 37 stops the feedback control of the valve opening degree of the hot water supply mixing valve 5 and stops hot water supply. ing.

<Automatic bath operation>
Next, bath automatic operation will be described. When the bath switch 34a of the remote controller 34 outside the bathroom or the bath switch 35a of the remote controller 35 in the bathroom is operated, the main body control means 37 opens the hot water solenoid valve 16, and the temperature detected by the hot water temperature sensor 15 is the bath temperature. The valve opening of the bath mixing valve 11 is feedback-controlled so as to coincide with the set temperature, and the bath filling operation at the bath set temperature is started.

  The main body control means 37 closes the hot water solenoid valve 16 when the integrated value of the hot water flow rate detected by the hot water flow rate sensor 14 becomes the bath set hot water amount or when the water level sensor 22 detects the bath set water level. Finish the hot water filling operation and keep the bath warm.

  In the heat insulation operation of the bath, the bath circulation pump 20 is driven at regular intervals, the temperature of the bath water is confirmed by the bath temperature sensor 21, and if it is detected that the temperature is lower than the bath set temperature, the circulation is continued. Water is heated by the bath heat exchanger 18. When the bath temperature sensor 21 confirms that the temperature of the bath water has risen above the bath set temperature, the operation of the bath circulation pump 20 is stopped.

  Moreover, the main body control means 37 memorize | stores the water level in the bathtub 13 at the time of a hot water stop based on the detected value of the water level sensor 22, and when the water level in the bathtub 13 falls from the memorize | stored water level, it will become an original water level. Perform bath replenishment operation.

  When a preset bath automatic heat retention time elapses from the start of hot water filling, the bath heat retention operation and bath replenishment operation are also stopped, and the bath automatic operation is stopped.

  Next, the characteristic operation of the present invention will be described based on the flowchart shown in FIG.

  The control means 34f and 35f of the remote controller 34 outside the bathroom or the remote controller 35 inside the bathroom determine whether or not the bath switch 34c or 35c is turned on (step S1). The operated control means 34f or 35f of the remote controller transmits a signal to the main body control means 37 that a bath automatic operation request has occurred.

  The main body control means 37 that has received the signal that the bath automatic operation request has been generated starts the bath automatic operation described above, and simultaneously sends a signal that the bath filling operation accompanying the bath automatic operation is started, The control means 34f and 35f, which are transmitted to the remote controller 35 in the bathroom and have received the signal indicating that the hot water filling operation is started, output a voice guide indicating that the hot water filling is started from the respective speakers 34b and 35b (step S2). .

  Further, the main body control means 37 receives a signal indicating that a bath automatic operation request has occurred, and causes the determination means 37b to determine whether or not it is a time when a bathing accident is likely to occur. The determination means 37b The current date counted by the calendar function 37a is confirmed, it is determined whether the current date falls within a predetermined period in which the predetermined outside air temperature is low (step S3), and the outside air detected by the outside air temperature sensor 33 is further determined. It is determined whether the temperature is equal to or lower than a predetermined temperature (step S4). If both steps are Yes, it is determined that it is a time when a bathing accident is highly likely (step S5).

  When the determination unit 37b determines that it is a time when the possibility of a bathing accident is high, the main body control unit 37 sets either the remote controller 34 outside the bathroom or the remote controller 35 in the bathroom on the side of the bath switch 34c or 35c that is turned on. On the other hand, the control means 34f or 35f of the remote controller 34 outside the bathroom or the remote controller 35 in the bathroom which has received the signal for notifying the alert information regarding the bathing accident is stored in the storage means 34g or 35g in advance. By displaying the character data of the alerting information regarding the bathing accident on the display unit 34a or 35a, information for inducing the prevention of the bathing accident is notified (step S6).

  Here, the storage means 34g or 35g stores a plurality of warning information together with information numbers, and the control means 34f or 35f receives a plurality of warnings every time it receives a signal to notify the warning information related to a bathing accident. One alerting information is selected from the alerting information in the order of information numbers.

  On the other hand, the determination unit 37b confirms the current date counted by the calendar function 37a, determines whether the current date falls within a predetermined period in which the predetermined outside air temperature is low (step S3), and further the outside air temperature. It is determined whether or not the outside air temperature detected by the sensor 33 is equal to or lower than a predetermined temperature (step S4). If No is determined in either step, it is determined that it is not a time when a bathing accident is likely to occur (step S7). The means 37 does not transmit a signal for notifying the alerting information regarding the bathing accident, and unnecessary alerting is not performed from the remote controller 34 outside the bathroom and the remote controller 35 inside the bathroom.

  In this way, when the bathing accident is likely to occur, the remote controller that operated the bath switch alerts you to warning information about the bathing accident when you operate the bath switch. Reduce the risk of sudden blood pressure fluctuations against the background of the temperature difference between the room temperature in the bathroom or dressing room and the temperature of the hot water in the bathtub, or reduce the risk of dehydration during bathing by taking enough water before bathing. It is possible to secure a time margin for taking measures to reduce the consciousness of preventing bathing accidents, and to assist the supporter in making appropriate calls and support.

  Moreover, since the alert information is not notified when the remote controller in which the bath switch is not turned on or when the possibility of occurrence of a bathing accident is not high, troublesomeness associated with unnecessary notification can be reduced. .

  Next, a characteristic operation of another embodiment of the present invention will be described based on a flowchart shown in FIG. In addition, the same structure as previous one Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.

  In this alternative embodiment, it is determined whether or not it is a time when the possibility of a bathing accident is high from the water supply temperature detected by the water supply temperature sensor 10 by the determination unit 37b and the bathroom temperature detected by the bathroom temperature sensor 36. If the water supply temperature is equal to or lower than the predetermined water supply temperature (Yes in step S31) and the bathroom temperature is equal to or lower than the predetermined bathroom temperature (Yes in step S41), it is determined that it is a time when a bathing accident is highly likely to occur. However, if any one of the steps is No, it is determined that it is not a time when the possibility of a bathing accident is high (step S7). Instead of the feed water temperature detected by the feed water temperature sensor 10, the lowest temperature of the incoming water temperature detected by the incoming water temperature sensor 26 or the lowest temperature of the hot water storage temperature detected by the lowermost hot water storage temperature sensor 17 is supplied. It can also be used as a temperature.

  In this way, even when the water supply temperature is low in winter, the determination means 37b can take a bathing accident against the background of the temperature difference between the room temperature of the bathroom or dressing room and the temperature of the hot water in the bathtub when the bathroom temperature is sufficiently warm. Therefore, it is determined that it is not a time when a bathing accident is likely to occur, and unnecessary alert information is not notified.

  In addition, this invention is not limited to the said embodiment, It can modify | change in the range which does not change the summary of invention, For example, the determination means 37b is date information, outdoor temperature information, bathroom temperature information, water supply temperature. It is also possible to determine a time when a bathing accident is highly likely to occur from a combination of any one or a plurality of pieces of information.

  Moreover, although the determination means 37b determines with the timing when the bath switches 34c and 35c were operated, it is not restricted to this, It can determine in advance and can hold the result for a fixed period, and can alert | report alert information It is good also as a structure which alert | reports alerting information when it is set as a state and the bath switches 34c and 35c are operated.

  Moreover, although the hot water storage type bath hot water supply apparatus which heats hot water with the heat pump type heating means has been described as an example, for example, an instantaneous heating type hot water supply apparatus using gas or kerosene as fuel may be used.

  The storage units 34g and 35g are stored as character data as alerting information, but are stored as voice data in addition to or instead of the character data, and are notified by voice from the speakers 34b and 35b. It is good.

13 Bathtub 34 Remote controller outside the bathroom (remote controller)
34a Display section (notification means)
34b Speaker (notification means)
34c Bath switch 34f Control means 34g Storage means 35 Remote control in bathroom (remote controller)
35a Display section (notification means)
35b Speaker (notification means)
36c Bath switch 35f Control means 35g Storage means 37 Main body control means (control means)
37b Determination means

Claims (3)

  In a bath hot water supply apparatus comprising a remote controller having a bath switch and a notification means, and a control means for performing a hot water filling operation of a set amount of water or a set water level to the bathtub according to the operation of the bath switch, a warning about a bathing accident Storage means for storing information in advance is provided, and the remote controller notifies the alert information stored in the storage means from the notification means of the remote controller when the bath switch is operated. A featured bath water heater.   A determination unit is provided for determining a time when a bathing accident is highly likely to occur, and the remote controller is configured to be able to notify when the determination unit determines that a bathing accident is likely to occur. The bath hot water supply apparatus according to claim 1, wherein   The determination means is configured to determine a time when a bathing accident is highly likely from a combination of any one or a plurality of information among date information, outside air temperature information, bathroom temperature information, and water supply temperature information. The bath hot water supply apparatus according to claim 2, wherein

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