JP3033165B2 - Combustion control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control device for controlling a combustion device such as a water heater.

2. Description of the Related Art Conventionally, when an abnormality occurs in a refueling machine or the like, a method has been adopted in which an abnormal portion is coded and displayed on a remote controller or the like so that the cause of the abnormality can be easily recognized. For example, if an error occurs in the blower, 21 is displayed on the remote control if an error occurs in the combustion detector, and the number 81 is displayed on the remote control to indicate which part of the equipment is in an abnormal state and release the abnormal state The treatment operation to be performed could be easily performed according to the treatment method described in the instruction manual for each number. In addition, when abnormalities occur temporarily due to accidental and unavoidable causes such as noise and water cutoff and do not damage the equipment, the user himself has to take measures without depending on the service provider .

Problems to be Solved by the Invention However, in the above-described configuration, if the instruction manual is carefully stored and cannot be used immediately when an abnormality occurs,
The treatment method was not easily understood and the abnormal state could not be released. Further, there is a problem that wasteful costs are expended due to the dependence on the service company for repair. Further, even if an abnormality due to a minor cause occurs professionally, the combustion equipment becomes unusable because it cannot be used.

In view of the above, an object of the present invention is to provide a method for canceling an abnormal state when an abnormality occurs in a combustion device, by directly displaying or expressing the method on an operation unit such as a remote controller or the like, so that a user can more reliably perform an abnormal measure operation. And

Means for Solving the Problems In order to achieve the above object, a first means of the present invention comprises: an abnormality detecting means for detecting an abnormality of a component of a combustion apparatus; and an abnormality occurrence location based on an abnormality detection signal of the abnormality detecting means. Abnormal treatment instruction means for determining a plurality of treatment methods based on the degree of lightness and frequency of occurrence of the function, and outputting a display instruction signal;
The apparatus further comprises a treatment method display means for displaying a treatment method according to a display instruction signal of the abnormal treatment instruction means.

Further, the second means of the present invention is provided with a voice display means for voicely expressing a treatment method by a display instruction signal of the abnormal treatment display means.

According to the first aspect of the present invention, when the abnormality detection unit detects an abnormality in a component of the combustion equipment, the abnormality instruction unit determines a treatment method based on the severity and occurrence frequency of the abnormality detection signal,
A display instruction signal corresponding to the treatment method is output, and the treatment method display unit receiving the signal displays a treatment method for canceling the abnormality on an operation unit such as a remote controller to notify the user.

Further, according to the second aspect of the present invention, the user is notified by voice from an operation unit such as a remote controller of a treatment method in which the voice display unit that has received the display instruction signal cancels the abnormality.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of a combustion control apparatus according to the present invention. The combustion apparatus main body includes a microcomputer 1 and components (hereinafter, referred to as components) of the combustion apparatus such as an electromagnetic valve and various sensors electrically connected thereto. 2). Also,
The microcomputer 1 includes an I / O 1a for controlling the input and output of signals from the component 2 and the like, an abnormality detecting means 1b for detecting an abnormality of the component 2, a display instruction signal corresponding to the content of the abnormality upon receiving the abnormality detection signal. And a treatment method display means 3 comprising LEDs 3a, 3b, 3c and a description 3d provided on a remote controller 4 as an operation unit.

Next, a method of displaying a treatment method on the remote controller 4 when an abnormality occurs in the component 2 will be described. First, different signals are sent from the component 2 to the I / O 1a. This signal is a voltage proportional to the resistance value of a control circuit (not shown), a pulse signal corresponding to the operation speed of the component 2, or the like. Abnormality detection means 1b that received a signal via I / O 1a
Performs a check of a predetermined voltage range, a range of the number of pulses, and the like for the signal of each component 2, and when the component 2 sends an abnormal signal, sends the information to the abnormal treatment instruction means 1c. The abnormal treatment instruction means 1c selects a corresponding signal from the three display instruction signals based on the abnormality occurrence location, the degree of minority in the function, and the cumulative number of occurrences of the abnormality, and sends the selected signal to the treatment method display means 3 via the I / O 1a. Output and respond to this display instruction signal.
One of the LEDs 3a, 3b and 3c is turned on.

FIG. 2 shows an outline of the display on the remote controller 4. The treatment method display means 3 writes a message A, a message B, and a message C beside the LEDs 3a, 3b, and 3c, respectively, and a specific treatment method corresponding to the messages A, B, and C has a description 3a in a space on the right side. It should be specified. Then, message A is an operation that opens and closes the faucet with little or no frequency in function,
Message B indicates a reset operation of the operation switch having a medium function or frequency, and message C indicates a power reset operation having a serious or abnormal function. in this way,
Operations that can be restored by the user can be displayed in a narrow space of the remote controller because the abnormal conditions are ranked and sorted by function or frequency of occurrence and are limited to several treatment methods.

Here, prior to the description of the operation, a water heater as an example of a combustion device is inadvertently and inevitably generated. However, if the user follows the description, the cause of the abnormality that can be easily restored and the treatment method therefor are described. Some examples are described below in bulleted form.

(B) When the gas supply pressure temporarily drops abnormally due to the concentrated use of each household during the dinner preparation time etc. and an ignition error occurs, the faucet is opened and the ignition operation is repeated, and when the ignition is confirmed, Close the faucet again in preparation for use.

(B) As a seasonal factor, a lightning strike may activate an earth leakage breaker provided as a device safety device. In this case, the earth leakage breaker is reset by a "power reset" in which the power outlet is connected and disconnected by the control mechanism.

(C) When electrical operation noise generated by other devices used at home or strong external radio waves are temporarily received, contact switching during each sequence is performed when the control circuit is performing a sequence operation. May be erased or reverse development may occur. As this measure, in many cases, the sequence is returned to the beginning by "operation reset" in which the operation switch is turned on and off.

FIG. 3 shows a flowchart for explaining the abnormal action operation of the microcomputer 1. First, a signal from the abnormality detecting means 1b is fetched (SP1). This signal is managed as a flag in the microcomputer. Next, it is checked whether or not the blower is abnormal, that is, whether or not a flag indicating that the blower is abnormal is set (SP2). If the control circuit receives noise during the sequence of stopping the blower and a flag is set indicating that the blower is not stopped even if the hot water stops, the counter for each part is incremented (SP3). Check whether it is the first abnormality (SP4). In the case of the first abnormality, the output to turn on the LED 3a is given to the I / O 1a because the frequency is small and the function is insignificant (SP
Five). When the faucet is opened and closed again, the blower is stopped and the abnormality is released. On the other hand, if it is not the first abnormality, it is checked whether it is the second abnormality (SP6),
If the abnormality is the second time, the frequency increases even if the function is minor, so that an output for lighting the LED 3b is given to the I / O 1a. (SP
7). When the operation switch is reset, the blower stops. In the case of the third or more times, it is determined that the frequency is high even if the function is slight, and an output for lighting the LED 3c is given to the I / O 1a (SP8). If the abnormality cannot be cleared even after the power reset operation, it is due to a defect in the control circuit itself due to, for example, a contact failure or the like.

On the other hand, if it is determined by (SP2) that the blower is not abnormal, then it is checked whether a flag indicating that the water solenoid valve is abnormal is set (SP9). When the noise is received and the water solenoid valve does not open and the water does not flow, an output to turn on the LED 3b is given to the I / O 1a (SP10). Water solenoid valve is another component 2
This is an important function because the hot water does not come out on use compared to
It is a minor function for safety. In addition, since it is a medium-level important function, consideration is given so that when an abnormality occurs, the operation state cannot be cleared without resetting the operation switch. When the water solenoid valve is not abnormal, the other components 2 are similarly checked.

As described above, according to the first embodiment, when an abnormality occurs in the combustion equipment component 2, the user can operate a different treatment method depending on the degree of lightness and the frequency of occurrence in the function of the abnormality occurrence part. It is collected into a limited number and contents and displayed properly in a narrow space, and the user is correct and adapts to the abnormal contents.
In addition, an operation for easily canceling the abnormality can be guided. Further, when the device configuration is incomplete or the component is in an abnormal condition that requires repair, the message C can be clearly notified.

FIG. 4 shows a second embodiment of the present invention, in which a treatment method display means 6 is configured as a remote controller (not shown) using a liquid crystal driver IC 5 and a liquid crystal panel 5a instead of an LED display and a description 3d. is there. According to this configuration, the treatment method can be directly displayed on the liquid crystal panel 5a as characters. For example, it is also possible to use more patterns in the narrow space of the remote control to display a more specific display of the details of the abnormality treatment, such as "Turn off the reheating switch" or "Close the faucet". . In addition, it is possible to expect more appropriate measures for canceling the abnormality with respect to the contents of the abnormality.

FIG. 5 shows a third embodiment of the present invention. The difference from the first embodiment is that a remote control 7 is provided with an audio synthesizing LSI 8, an amplifier 9 for audio amplification, and an audio expression means 11 comprising a speaker 10. It is prepared. And I / O1a and LSI8 for speech synthesis
Are connected by three signal lines L1, L2, L3. FIG. 6 shows a remote controller 7 having a small speaker 10.

The method of outputting sound from the speaker 10 is as follows. A display instruction signal output by the abnormality treatment instruction means 1c is input to the LSI 8 for voice synthesis from one of three signal lines via the I / O 1a, and this signal is When the signal is converted into an audio signal, amplified by the amplifier 9 for audio amplification, and input to the speaker 10, a processing method for canceling the abnormal state corresponding to the display instruction signal is output as audio. In FIG. 6, the message A is output from the speaker 10.

Thus, according to the third embodiment, by providing the small speaker 10 in a narrow space of the remote controller 7,
In character display, the content of the expression is limited due to the display space, but even if the amount of expression is increased, the capacity of the LSI 8 for speech synthesis can be sufficiently secured, and the user can be treated with more detailed expressions. It is easy to understand and can inform the treatment method kindly.

Effect of the Invention As described above, the combustion control device of the present invention, by changing the treatment method display according to the severity and frequency of occurrence of the abnormality, the components of the combustion equipment accidentally and inevitably occur due to minor causes, When the user is in an abnormal state that can be restored, the treatment method is directly displayed on the operation unit such as a remote controller or notified by voice, so that the user can immediately understand the treatment method, and the user himself can easily In addition, the present invention has an excellent effect that the abnormal state can be more reliably recovered, and unnecessary labor costs due to a repair request to a service provider can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention, FIG. 2 is an external view showing the remote controller, FIG. 3 is a flowchart for explaining the operation of the microcomputer, and FIG. FIG. 5 is a configuration diagram showing a third embodiment of the present invention, and FIG. 6 is an external view showing the remote controller. 1b: abnormality detection means, 1c: abnormality treatment instruction means, 2 ...
Combustion equipment components, 3, 6 ... Treatment method display means, 11 ...
... Voice expression means.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F23N 5/26 101

Claims (2)

(57) [Claims] An abnormality detecting means for detecting an abnormality of a component of a combustion apparatus, and a treatment method which is determined based on the frequency of occurrence and the frequency of occurrence of an abnormality in response to an abnormality signal detected by the abnormality detection means. A combustion control device comprising: an abnormal treatment instruction means for selecting from treatment methods and outputting as a display instruction signal; and a treatment method display means for displaying a treatment method based on a display signal of the abnormal treatment instruction means. 2. The apparatus according to claim 1, further comprising a voice expressing means for voicely expressing a treatment method based on a display signal of the abnormal treatment instruction means.
The combustion control device according to any one of the preceding claims.