JP2002147850A - State memory device for hot-water supplier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently analyze a cause of an abnormal operation or the like by storing instrument control information or the like at an arbitrary time. SOLUTION: The state memory device for a hot-water supplier is provided with a hot-water supplier H, a remote controller RM for effecting remote control, a control means for controlling the whole of the combustion control or the like of the hot-water supplier H, a control monitoring means for monitoring the operating condition or the control information of the hot-water supplier H, a memory means 12 for storing the content of monitoring of the control monitoring means into a non-volatile memory medium, a memory operating means for effecting a predetermined operation set in the control means, and a memory indicating means for outputting the indication of a storing operation into the memory means based on the operation of the memory operating means. In this case, when a predetermined operation is effected by the memory operating means in the hot-water supplier H at an arbitrary time, the memory indication is outputted to the memory indicating means and the operating condition or the like of the hot-water supplier H is stored by the memory means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater for household use using gas or the like as fuel, and more particularly, to a water heater for storing an operating state of a water heater in a storage means by a predetermined operation. It concerns the device.

[0002]

2. Description of the Related Art Recent hot water heaters are generally controlled by a microcomputer, and provide complicated temperature control and the like by software.

[0003] For example, in the case of temperature control, what is the set temperature, what is the input water temperature, what is the flow rate, and what is the flow rate of L / min, calculate the optimal combustion amount and output the output to the gas proportional valve and the fan. The control is performed while electrically storing some important data necessary for the combustion control.

[0004] However, when a power failure occurs, the control information is erased because the data cannot be retained electrically, and when returning from the power failure, the control information is returned to an initial value or the like, and the user's operation or combustion is stopped. It is in a state of waiting for control.

[0005] In order to solve this problem, many recent water heaters are equipped with a nonvolatile memory such as an EEPROM, for example, and control information such as gas pressure adjustment values, temperature setting information to be set by a user, and combustion state. Is stored inside the water heater to provide a more comfortable and convenient water heater.
An example of a conventional method of storing data in an EEPROM of a water heater will be described with reference to FIG.

In FIG. 4, H1 is a gas water heater, and R2 is a bathroom remote controller installed in the bathroom. In the bathroom remote control R2, for example, reference numeral 20 denotes a hot water supply temperature display unit that displays a shower temperature by using a liquid crystal or LED, reference numeral 21 denotes an up setting switch for setting a high shower temperature in a kitchen remote control, and reference numeral 22 denotes a switch for setting a low shower temperature. This is a down setting switch.

Here, the user operates the up setting switch 21 and the down setting switch 22 to change the temperature displayed on the hot water supply temperature display section 20 of the bathroom remote control R2 to a desired temperature in order to use the shower. The changed hot water supply set temperature is displayed on the hot water supply temperature display section 20, and the control information is sent to the control means (not shown) of the gas water heater H1 to control the hot water temperature. FIG. 5 is a block diagram of a part related to the storage control of the control means R.

In FIG. 5, reference numeral 23 denotes a combustion control means for controlling the combustion of the water heater, 24 denotes a control amount and a set value of the combustion control means 23, and a time of a timer means 25 every two hours, for example. It is a storage instructing means for receiving an elapse instruction and issuing an instruction to store control information of the water heater. Reference numeral 26 denotes a storage unit for performing a write operation or the like for storing the data in the EEPROM 27 by the storage instruction unit 24, for example.

On the other hand, if an abnormality such as a temperature thermistor failure occurs during the combustion operation of the water heater, the abnormality monitoring means 28 immediately issues an instruction to the abnormality information writing instruction means 29, EEPROM2
7, a write operation is performed.

That is, in the case of normal operation, the data is stored in the storage means 26 every time a predetermined time of the timer means 25 elapses.

[0011]

However, in the conventional gas water heater, it is possible to store the information in the EEPROM every predetermined time or immediately when an abnormality occurs, but it is not possible to store the control information at an arbitrary time. . For this reason, for example, at the time of maintenance, even if the user wants to know the control information of the water heater in the abnormal combustion state, the control information at that time is stored in the EEPROM
Since it cannot be stored in the OM, it is necessary to determine an abnormal state based on control information that has been retroactive for a predetermined period of time.

[0012]

According to the present invention, in order to solve the above-mentioned problems, a storage operation means is provided inside a water heater, and when a predetermined operation is performed at an arbitrary time, control information is stored by the storage means. It was done.

According to the present invention, since control information can be arbitrarily stored, control information can be stored when it is desired to store the control information irrespective of a predetermined time such as a timer means. Can be analyzed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a water heater, a remote controller for remote control, control means for controlling overall control of combustion of the water heater and the like, and monitoring of the operation state and control information of the water heater. A control monitoring unit, a storage unit for storing the monitoring content of the control monitoring unit in a nonvolatile storage medium, a storage operation unit for performing a predetermined operation provided in the control unit, and an operation of the storage operation unit. The storage device has storage instruction means for issuing an instruction for a storage operation to the storage means. Then, when a predetermined operation is arbitrarily performed by the storage operation means inside the water heater, a storage instruction is issued to the storage instruction means, and the operating state of the water heater can be stored by the storage means.

Further, the present invention has the storage means in a remote controller connected to the outside of the water heater. And
Even when a predetermined operation is performed by the storage operation means outside the water heater, a storage instruction is issued to the storage instruction means, and the operation state of the water heater can be stored by the storage means.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a configuration diagram of a water heater according to Embodiment 1 of the present invention.

In FIG. 1, H is a gas water heater, and RM is
This is a bathroom remote control having a display unit 3, a temperature setting up switch 4, and a temperature setting down switch 5. Reference numeral 1 denotes a control electric device incorporated in the gas water heater H and disposed, for example, in front of the gas water heater H, and has an operation switch 2 such as a push switch mounted thereon.

FIG. 2 is a block diagram showing the storage control in the control electric equipment in the gas water heater H. In FIG. 2, an operation switch 6, which is not normally used in the control means D1 but is operated when a storage operation is to be performed, detects that the operation switch 6 has been turned on, and is turned on by a storage operation detection timer means 8. There is provided a storage operation detection means 7 for issuing a time measurement instruction and detecting that the storage operation has been confirmed in response to the elapse of a predetermined time from the storage operation timer means 8. Reference numeral 10 denotes a storage unit 1 having, for example, an EEPROM 13 when the storage operation of the storage operation detection unit 7 is determined.
2 is a storage instruction means for issuing a storage instruction to the storage device 2.

The storage instruction means 10 can issue a write instruction by counting a predetermined time, for example, every two hours by the timer means 9, and can store the data in the storage means 12. Further, when an abnormality occurs in the gas water heater by the abnormality information writing instruction means 11, a storage instruction is immediately issued, and the storage can be performed by the storage means 12. Therefore, when the operator operates the operation switch 6 at an arbitrary time during maintenance or the like, the storage operation detection means 7 determines the storage operation, and the storage operation detection means 7 and the storage means 12 Control information and the like can be stored in the EEPROM 13.

(Embodiment 2) FIG. 3 is a block diagram relating to a gas water heater and storage control by a remote controller according to Embodiment 2 of the present invention.

In FIG. 3, R1 is a control means inside the remote controller. The operation switch 14 is operated at the time of the storage operation, the special operation of the operation switch 14 is detected, and the special operation detecting means 15 for fixing the operation is provided. Communication means 16 for transmitting the contents to the gas water heater.

D2 is a control means in the gas water heater, 17 is a communication means for communicating with the remote control R1, and 18 is a remote control R
This is a storage operation detection unit that detects a storage operation that has been detected and confirmed by the special operation detection unit 15 sent from 1. 19
Is a storage instructing unit for issuing a storage instruction to the storage unit 12 in response to the storage operation determination of the storage operation detecting unit 18.

Explaining only the differences from the first embodiment, the first embodiment is a storage operation using an operation switch mounted in the control means in the gas water heater, whereas the second embodiment is an external operation of the gas water heater. The special operation by the operation switch 14 from the remote controller R1 is detected at any time, and the communication means 16 and 1
The information is transmitted to the storage operation detecting unit 18 via the storage unit 7 and stored by the storage instruction unit 19 and the storage unit 12.

[0025]

As described above, according to the present invention, it is possible to arbitrarily provide the operation of storing the control information of the gas water heater.

Further, according to the present invention, if the operator performs a predetermined operation with the operation switch at the time when the operator wants to memorize the data for maintenance or the like, the control information of the gas water heater is updated at that time.
It can be stored in the OM or the like, and the cause of the abnormal control state of the gas water heater can be analyzed based on the stored control information, and the analysis time can be shortened, and work efficiency such as measures can be improved. .

According to the present invention, even when a special operation is performed by a remote controller provided outside the gas water heater, the control information of the gas water heater can be stored in an EEPROM or the like at the time of the operation, and the gas water heater can be stored. The storage instruction can be arbitrarily performed only by operating the remote controller without removing the front panel.

Accordingly, workability such as cause analysis can be further improved in an installation place where a work space cannot be secured.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a gas water heater according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing storage control of the water heater.

FIG. 3 is a block diagram illustrating storage control of a gas water heater according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a conventional bath water heater.

FIG. 5 is a block diagram showing storage control of the water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control electric equipment 2 Operation switch 3 Display part 7 Storage operation detection means 8 Storage operation detection timer means 10 Storage instruction means 12 Storage means 15 Special operation detection means 16 Communication means H Gas water heater RM Bathroom remote control

Claims (2)

[Claims] 1. A water heater, a remote controller for remotely controlling the water heater, a control means for controlling the water heater, a control monitoring means for monitoring an operation state and control information of the water heater, and the control monitoring means Storage means for storing the contents of monitoring in a non-volatile storage medium, storage operation means provided in the control means for performing a predetermined operation, and storage operation in the storage means based on the operation of the storage operation means Storage instruction means for outputting an instruction of the water heater, when a predetermined operation is performed at an arbitrary time by the storage operation means, a storage instruction is output to the storage instruction means, and the operation of the water heater is performed by the storage means. Water heater status storage device that stores the status. 2. When the storage means is provided in a remote controller and a predetermined operation is performed by a storage operation means outside the water heater,
The water heater state storage device according to claim 1, wherein a storage instruction is output to the storage instruction means, and the operation state and the like of the water heater are stored by the storage means.