JP2522351B2 - Hot water temperature setting device for water heater - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hot water temperature setting device for a water heater having a plurality of remote controllers (hereinafter referred to as remote controllers), and particularly, the operability can be enhanced with a simple configuration. The present invention relates to a hot water temperature setting device for a water heater.

(Prior Art) Generally, in a water heater having a plurality of remote controllers, a setting means capable of changing and setting the hot water temperature is provided in the plurality of remote controllers, and one of the temperature control setting data of each remote controller is prioritized. It is configured to input to the control circuit body of. For example, as shown in FIG. 6, a bath remote controller (2) and a kitchen remote controller (3) are connected to the control circuit body (1), and a bath water heater main body (not shown) is connected to the bath remote controller (2) and the kitchen remote controller (3). Temperature control setting means (2b) and (3b) for setting the hot water discharge temperature
Is provided, and either remote controller (2) is installed in the bath remote controller (2)
A priority changeover switch (2c) is provided as to whether the temperature control setting data of (3) should be prioritized. The kitchen remote controller (3) is provided with an operation switch (3a) for turning the power on and off.

(Problems to be Solved by the Invention) In such a conventional example, since priority switching cannot be performed on the kitchen side, there is no fear that the hot water supply temperature to the bath will be switched to the hot water supply temperature in the high temperature kitchen by operating the kitchen remote controller (3). However, if the bath remote control (2) is restarted in an attempt to obtain high-temperature hot water in the kitchen after the operation is paused while the temperature control setting of the remote control (2) is prioritized, the temperature control setting of the kitchen remote control (3) is prioritized. In order to switch to priority, you have to go to the bathroom, which is a disadvantage in improving operability.

The present invention has been made in consideration of the above circumstances, and provides a hot water temperature setting device for a water heater having a plurality of remote controllers which has a simple structure and can be improved in operability and is also safe. That is the purpose.

(Means for Solving the Problem) In order to achieve the above-mentioned object, a hot water temperature setting device for a water heater having a plurality of remote controllers according to the present invention opens a hot water tap with an operation switch turned on. By connecting a plurality of remote controllers to the control circuit body of the water heater, hot water supply is started by the temperature control setting means and the operation switch for independently changing and setting the hot water temperature for each remote controller, the control circuit body,
A polling unit that sequentially communicates with each remote controller, a detection unit that detects the ON operation and the OFF operation of the operation switch based on the transmission data from each remote controller, and the remote control that has been prioritized in the temperature control setting when the operation switch is turned OFF are stored. And a storage means for storing a remote controller with which the control circuit body communicates when the operation switch is turned on, a timer which is activated when the operation switch is turned off, and whether or not the timer is operating when the operation switch is turned on. If the timer is in operation, the remote control temperature control setting data stored when the operation switch is turned off is given priority, and if the timer is stopped, the remote control temperature control setting data stored when the operation switch is turned on is given priority. The control circuit body is provided with a priority switching means for reading.

(Operation) In the hot water temperature setting device for a water heater having a plurality of remote controllers according to the present invention, data from each remote controller is sequentially input to the control circuit body by the polling means. Then, when the operation switch of any remote controller is turned on or off, the detection means detects that the switching data in the transmission data from the remote controller differs between the previous communication and the current communication. It is detected that the operation switch is turned on or off. Around the same time, the remote control that is operating the operation switch that is communicating with the control circuit body when the operation switch is turned on is stored in the storage means, and the temperature control setting data is prioritized when the operation switch is turned off. The remote controller is stored in the storage means. Then, when the operation switch is turned on, it is determined whether or not the timer that starts when the operation switch is turned off is operating. If the timer is operating, the temperature control setting data stored in the remote control when the operation switch is turned off is given priority. Then, if the timer is stopped, the priority switching means gives priority to the temperature control setting data of the remote controller stored in the storage means when the operation switch is turned on, and reads it into the control circuit body. The hot water temperature control of the water heater is executed based on the temperature control setting data of the remote controller.

(Example) Hereinafter, the present invention will be specifically described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a main part of a hot water temperature setting device for a water heater according to an embodiment of the present invention, and FIG. 2 is a flow chart showing a flow of a detection routine of a remote controller with an operation switch turned off. FIG. 3 is a flow chart showing the flow of the detection routine of the remote controller that has turned on the operation switch, FIG. 4 is a flow chart showing the flow of the priority switching routine, and FIG. It is a timing diagram which shows a selection result.

In the figure, (1) is a control circuit main body including a microcomputer, (1a) is polling means, (1b) is detection means, (1c) is storage means, (1d) is priority switching means, and (1
e) is a timer, (1f) is an operation on-counter, (2) is a bath remote control, (2a) is an operation switch, (2b) is a temperature control setting means, (2c) is a priority changeover switch, and (3) is a kitchen remote control. , (3b) is the temperature control setting means, (3a) is the operation switch,
Reference numeral (4) is a sub remote controller, which is also provided with a temperature adjustment setting means and an operation switch.

Next, the operation of the hot water temperature setting device for the water heater will be described.

The polling means (1a) executes polling in the order of the bath remote controller (2), the kitchen remote controller (3), and the sub remote controller (4) to poll the bath remote controller (2), the kitchen remote controller (3), and the sub remote controller (4). At the time of operation, the operation switch data, the remote control data representing each of the remote controls (2), (3), and (4) and the temperature adjustment setting data are transmitted from each of the remote controls (2), (3), and (4). If either one of the operation switches (2a) and (3a) is turned on, the water heater is placed in an operating state and hot water supply is started by opening the hot water supply tap. Further, in the control circuit body (1), the operation stop detection routine is executed at an appropriate cycle. That is, in the operation pause detection routine, as shown in FIG. 2, it is sequentially determined whether or not the operation switches (2a), (3a), etc. are off based on the operation switch data (S1), (S2), When it is determined that the operation switch (2a) or (3a) is turned on, the temperature control setting is prioritized at that time, and the remote control data of the remote controller is stored in the storage means (1c) (S3), and the timer is set. After activating (1e) (S4), it shifts to another routine.

Further, after the timer (1e) is started in the operation stop routine, the detection routine of the remote controller with the operation switch turned on as shown in FIG. 3 is repeatedly executed in an appropriate cycle in the control circuit body (1). , The switch means among the above-mentioned data is sequentially inputted from the remote controllers (2), (3), (4) by the detecting means (1b), and any one operation switch (2a ) ・ The fact that (3a) etc. are turned on is detected by the following procedure. That is, in the detection routine of the remote controller, it is monitored whether or not the switch data input last time is the operation switch off (S6), and if it is off, the switch data input this time is the operation switch on. Monitor whether or not (S
7). Here, when the switch data input this time is the operation switch ON, it is detected that one of the operation switches (2a) and (3a) etc. is operated to ON from the state where the operation is stopped. To be done. When the detection means (1b) thus detects the ON operation of the operation switch, the remote control (2) currently polling the storage means (1c),
The remote control data of (3) and (4) are stored (S8), and the operation on counter (1f) is activated (S9).

Further, in the control circuit body (1), when the detection means (1b) detects that the operation is restarted, the priority switching routine is repeated at appropriate intervals as follows. That is, in the priority switching routine, first, it is determined whether or not the timer (1e) is operating (S10). If the timer (1e) is operating, the priority switching circuit (1d) stores the storage means (1c). ), The remote control data stored in the operation stop routine is read out, and the temperature control setting data of the remote control is given priority and read into the control circuit body (1) (S11). In this case, the timer (1
Even after the operation of e) is stopped, unless the priority changeover switch (2c) is operated, the temperature control setting data of the remote controller has priority.
If the operation of the timer (1e) is stopped, it is further determined whether or not the operation on-counter (1f) is counting (S12). If the operation is on, the priority switching circuit (1d) is The remote control data stored in the detection routine of the remote control in which the operation switch is turned on is read from the storage means (1c), and the remote control (2) corresponding to the remote control data,
The temperature control setting data of (3) and (4) are prioritized and read into the control circuit body (1) (S13). When the count operation of the operation on-counter (1f) is stopped, the temperature of the remote controllers (2), (3), (4) selected by the priority changeover switch (2c) provided in the bath remote controller (2) Read the control setting value with priority to the control circuit body (1) (S1
Four).

As a result, according to the hot water temperature setting device for the water heater, the off period of the operation switch is within the set time of the timer (1e),
When the operation switch is turned on by one of the remote controls, the operation is restarted by the temperature control setting data of the remote controller with priority when the operation switch is turned off, and the hot water suddenly becomes hot when the shower is intermittently used. It is possible to prevent the risk that the water will gush out and enhance the safety. Also, if the OFF period of the operation switch is longer than the set time of the timer (1e), the operation of the operation switch (2
Remote control (2), (3) on the side that operated a), (3a), etc.
Since the temperature control set value such as
After operating a), (3a), etc., it is not necessary to go to other remote controllers (2), (3), etc. to switch the temperature control setting data, and the operability is improved. Moreover, after the count operation period of the operation on counter (1f) has passed since the operation switch was turned on, priority setting can be selected using the priority switching counter (2c) on the bath remote control (2) side as in the conventional case. The hot water supply to the bath is prevented from being switched to a high temperature by operating the kitchen remote controller (3), and safety can be improved.

(Effects of the Invention) According to the hot water temperature setting device for a water heater having a plurality of remote controllers of the present invention, as described above, the timer that is started when the operation switch is turned off stops operating when the operation switch is turned on. When this is done, the setting value of the remote control on which the operation switch is turned on is given priority and operation is restarted, so there is no need to go to another remote control to switch the priority setting, which improves operability. it can. In addition, if the timer is operating when the operation switch is turned on, the temperature will be prioritized when the operation switch is turned off. It is safe because the hot water temperature does not change to the high temperature side. Further, the polling means, detection means, storage means, priority switching means, etc. used for priority switching may be incorporated as software inside the microcomputer constituting the control circuit main body, thus complicating the circuit configuration. Without, the configuration can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS.
FIG. 4 is a flow chart in the same example, FIG. 5 is a timing diagram in the same example, and FIG. 6 is a block diagram showing a conventional example. (1) …… Control circuit body (1a) …… Polling means (1b) …… Detecting means (1c) …… Storage means (1d) …… Priority switching means (2) …… Bath remote control (remote control) (3) …… Kitchen remote control (remote control) (4) …… Sub remote control (remote control) (2a) …… Operation switch (3a) …… Operation switch (2b) …… Temperature adjustment setting means (3b) …… Temperature adjustment setting means

Continuation of front page (56) References JP 62-9147 (JP, A) JP 62-761 (JP, A)

Claims (1)

(57) [Claims] 1. A plurality of remote controllers are connected to a control circuit body of a water heater in which hot water supply is started by opening a hot water supply tap while an operation switch is turned on, and the hot water temperature is independently set to each remote controller. Temperature control setting means and operation switch
The control circuit body has polling means for sequentially communicating with each remote controller, detection means for detecting ON operation and OFF operation of the operation switch based on transmission data from each remote controller, and temperature control setting when the operation switch is OFF operation. A storage unit that stores the remote control that has been prioritized and also stores the remote control that the control circuit body communicates with when the operation switch is turned on, a timer that starts when the operation switch is turned off, and a timer when the operation switch is turned on. When the timer is operating, the temperature control setting data of the remote controller stored when the operation switch is turned off is prioritized, and when the timer is stopped, the temperature of the remote controller stored when the operation switch is turned on is determined. Hot water temperature of a water heater characterized by having a priority switching means for giving priority to adjustment setting data and reading it in the control circuit body Constant apparatus.