JPH10253080A - Control device for hot-water supply heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform heating combustion control even when either of two kinds of heating controllers is connected to a connection terminal by providing a signal deciding part to perform decision of an input signal even when either of two kinds of the heating controllers is connected to the connection terminal of the heating controller. SOLUTION: A signal input means 3 is provided to input a signal for a heating controller 1 having an ON/OFF signal for a two-stage voltage and a signal for a serial signal system heating controller 2. A signal for the heating controller 1 from the signal input means 3 is decided by a signal deciding part 4, and a signal for the heating controller 2 is decided by a signal deciding part 5. Namely, the signal deciding part 4 causes a control part 6 to output a signal only when a signal for the heating controller 1 is inputted and the signal deciding part 5 causes the control part 6 to output a signal only when a signal for the heating controller 2 is inputted. A heating combustion part 7 is controlled by the control part 6 based on an input signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a hot water supply / room heater.

[0002]

2. Description of the Related Art Conventionally, there are two types of heating controllers: a heating controller having a two-stage voltage ON / OFF signal and a serial signal heating controller.
The heating controller connection terminal and the signal determination circuit of the hot water supply / heating unit were separately provided. Hereinafter, the configuration will be described with reference to FIGS.

As shown in FIG. 4, a hot water supply / room heater 16 and a heating controller 17 are connected by a signal line, and the heating controller 17 outputs a heating operation request signal to the hot water supply / room heater 16 and simultaneously opens a valve 18 to perform a heating operation. I do.

Next, the configuration of a control device for a hot water supply / room heater will be described with reference to FIG. In the figure, a first heating controller 1 having a two-stage voltage ON / OFF signal
The first signal input means 11 for inputting the signal of the first, the first signal determination unit 13 for determining the signal from the first signal input means 11, and the signal of the second heating controller 2 of the serial signal type are input. The second signal input means 12, the second signal determination section 14 for determining a signal from the second signal input means 12, the heating combustion section 7, and the first signal determination section 13.
And a control unit 15 that receives a signal from the second signal determination unit 14 and outputs a signal to the heating combustion unit 7.

[0005]

However, in the above-described configuration, the hot water supply / room heater has a two-stage ON / OF voltage.
It has connection terminals corresponding to two types of heating controller with F signal and heating controller of serial signal type, which leads to erroneous connection of construction contractor and cost increase due to having two types of signal judgment circuit. Had the problem of becoming

[0006]

According to the present invention, there is provided a signal determination unit for determining an input signal regardless of which of the two types of heating controllers is connected to a connection terminal of the heating controller. It is a thing. Thus, heating combustion can be performed regardless of which of the two types of heating controllers is connected to the connection terminal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is to convert a signal of a first heating controller having a two-stage voltage ON / OFF signal and a signal of a second heating controller of a serial signal system. A signal input unit for inputting, a first signal determination unit for determining a signal of a first heating controller having a two-stage voltage ON / OFF signal from the signal input unit, and a serial signal system from the signal input unit. A second signal determination unit that determines a signal of the second heating controller, and a control unit that receives the signals of the first signal determination unit and the second signal determination unit and outputs a signal. Then, signals from a plurality of heating controllers can be determined by one signal input unit.

According to a second aspect of the present invention, there is provided a signal input for inputting a signal of a first heating controller having a two-stage voltage ON / OFF signal and a signal of a second heating controller of a serial signal type. Means, a signal conversion unit that converts the signal of the heating controller from the signal input unit, and a signal determination unit that determines the signal from the signal conversion unit,
The control unit includes a control unit that receives a signal from the signal determination unit and outputs a signal. Then, similarly to the invention according to claim 1, signals from a plurality of heating controllers can be determined by one signal input unit.

According to a third aspect of the present invention, the signal determining section determines the type of the heating controller connected to the signal input means based on the power-on signal. As a result, the signal input from the signal input means can be stored as a signal from any heating controller.

[0010] In the invention according to claim 4 of the present invention, the signal judging unit judges the type when the heating controller is connected. As a result, it is possible to store the signal input from the signal input means to which heating controller.

In the invention according to claim 5 of the present invention, the signal determination unit determines the type of the heating controller connected to the signal input means based on the power-on signal, and determines the type of the heating controller when the power is turned on. Is determined to be abnormal when the signal is turned on and connected. This makes it possible to distinguish from a short circuit of the first heating controller.

In the invention according to claim 6 of the present invention, the signal determination section determines that the input signal has been continuously turned on for a predetermined time from the time when the input signal changes from a serial signal to a continuous ON or continuous OFF signal.
Alternatively, if the continuous OFF signal is continued, it is determined that an abnormality has occurred. This makes it possible to distinguish the short circuit from the heating controller.

An embodiment of the present invention will be described below with reference to the drawings. (Example 1) In FIGS. 1 (a), (b) and (c), 2
A signal input means 3 for inputting a signal of the first heating controller 1 having a step voltage ON / OFF signal and a signal of the second heating controller 2 of a serial signal type, and a two-step voltage from the signal input means 3 A first signal determination unit 4 for determining a signal of the first heating controller 1 having an ON / OFF signal of the second type, and a second signal for determining a signal of the second heating controller 2 of the serial signal type from the signal input unit 3. And a control unit 6 that receives signals from the first signal determination unit 4 and the second signal determination unit 5 and outputs a signal.

The operation of the above configuration will be described.
The signal determination unit 4 ignores the input of the signal of the second heating controller 2 and outputs the signal to the control unit 6 only when the signal of the first heating controller 1 is input. Similarly, the second signal determination unit 5 ignores the input of the signal of the first heating controller 1 and outputs a signal to the control unit 6 only when the signal of the second heating controller 2 is input.

As described above, according to the present invention, a plurality of heating controller signals can be determined by one signal input means.

(Embodiment 2) In FIG. 2, signal input means for inputting a signal of a first heating controller 1 having a two-stage voltage ON / OFF signal and a signal of a second heating controller 2 of a serial signal type. 3 and a first signal having a two-stage ON / OFF signal from the signal input means 3.
Signal conversion unit 8 for converting the signal of the heating controller 1 of the second and the signal of the second heating controller 2 of the serial signal system, and a signal determination unit 9 for determining the signal from the signal conversion unit 8
A heating / combustion unit 7; and a control unit 10 that receives a signal from the signal determination unit 9 and outputs a signal to the heating / combustion unit 7.

The operation of the above configuration will be described. The signal conversion unit 8 converts the signals of the first heating controller 1 and the second heating controller 2 into, for example, signals having different frequencies and duties, and sends the signals to the signal determination unit 9. Output.
The signal determination unit 9 determines the signal converted by the signal conversion unit 8, and determines whether the signal is for the first heating controller 1 or the second heating controller 2. Note that, as in the first embodiment, one signal input unit can be used.
A plurality of heating controller signals can be determined.

(Embodiment 3) In FIG. 3, after the power is turned on,
At A, it is determined whether or not the first heating controller is connected, and if it is connected, at B, the connection of the first heating controller is stored. After connection and storage at B, when a signal other than the first heating controller is input, an error is determined.

(Embodiment 4) In FIG. 3, if a signal is input at E, it is determined at F whether or not the first heating controller is connected, and if the first heating controller is connected, At G, the connection of the first heating controller is stored. After the connection and storage of the first heating controller in G, if a signal other than the first heating controller is input, an error is determined.

(Embodiment 5) In FIG. 3, it is determined whether or not the first heating controller is connected at A, and if not, it is determined at N whether the signal is Hi. It is configured to determine an error.

When the input signal is Hi after the power is turned on, it cannot be determined whether the signal is caused by a short circuit of the first heating controller or the second heating controller is turned on and connected. Therefore, since it is extremely rare that the first heating controller is turned ON and connected, it is determined that an error has occurred.

(Embodiment 6) In FIG. 3, after the first heating controller connection is stored, it is determined whether or not the input signal is Hi at H, and if it is Hi, I is used to determine whether a predetermined time has elapsed. Judgment is made, and if a predetermined time has elapsed, an error judgment is made. H
If the input signal is not Hi, it is determined at J whether or not a predetermined time has elapsed. If the predetermined time has elapsed, an error determination is made.

[0023]

As described above, according to the present invention, any one of two types of heating controllers having different input signals can be connected to one signal input means, and the signal can be determined regardless of which heating controller is connected. Can be.

Further, there is no need for the construction company to select the type of the heating controller to be connected, and there is no fear of erroneous connection.

Further, there is no need to have two types of connection terminals and a signal determination circuit, so that the cost is reduced.

[Brief description of the drawings]

FIG. 1A is a block diagram of a control device of a hot water supply / room heater according to a first embodiment of the present invention. FIG. 1B is a diagram showing signals of a first heating controller of the same device. FIG. 1C is a second heating controller of the same device. Diagram showing the signal of

FIG. 2 is a block diagram of a control device for a hot water supply / room heater in Embodiment 2 of the present invention.

FIG. 3 is a flowchart illustrating a control device of a hot water supply / room heater according to Embodiments 3 to 6 of the present invention.

FIG. 4 is a block diagram showing a conventional hot water supply / heating system.

FIG. 5 is a block diagram of a control device of the heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st heating controller 2 2nd heating controller 3 Signal input means 4 1st signal judgment part 5 2nd signal judgment part 6, 10 control part 7 Heating combustion part 8 Signal conversion part 9 Signal judgment part

Continuing on the front page (72) Inventor Masayoshi Ogaki 1006 Odakadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (6)

[Claims] 1. A first heating controller having a two-stage voltage ON / OFF signal, and a serial signal type second heating controller.
Heating controller, signal input means for inputting signals from the first heating controller and the second heating controller, and a first signal for determining a signal of the first heating controller based on a signal from the signal input means A determination unit, a second signal determination unit that determines a signal of a second heating controller based on a signal from the input unit, a heating combustion unit, the first signal determination unit, and the second signal determination unit. And a control unit for controlling the heating and burning unit in response to the signal of (1). 2. A first heating controller having a two-stage voltage ON / OFF signal, a second heating controller of a serial signal system, and signals from the first heating controller and the second heating controller. Signal input means, a signal conversion unit that converts a signal according to a signal from the signal input means, a signal determination unit that determines a signal from the signal conversion unit, a heating combustion unit, and a signal from the signal determination unit. A control device for a hot water supply / heating unit, comprising: a control unit configured to control the heating combustion unit. 3. The control device for a hot water supply / heating unit according to claim 1, wherein the signal determination section determines a type of the heating controller connected to the signal input means based on a power-on signal. 4. The hot water supply / heating device control device according to claim 1, wherein the signal determination unit determines a type of the heating controller when the heating controller is connected. 5. A signal judging section for judging the type of the heating controller connected to the signal input means on the basis of a power-on signal, and an abnormality when a signal from the second heating controller is turned on at the time of power-on. The control device for a hot-water supply / room heater according to claim 1 or 2, wherein the control unit determines that 6. The signal judging section judges that the signal is abnormal if the continuous ON or continuous OFF signal is continued for a predetermined time after the input signal changes from a serial signal to a continuous ON or continuous OFF signal. Hot water heater control device.