JP3063452B2 - Safety device for hot air heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a hot air heater such as an oil fan heater.

[0002]

2. Description of the Related Art In recent years, household heating appliances such as petroleum fan heaters have become increasingly conscious of ease of use and safety.
Product improvements have been made.

In particular, an oil fan heater or the like is provided with various timer functions, a function for setting a set temperature, a degree of warming, and the like, and a switch for operating the function is provided for each function.

Further, recent hot air heaters are provided with a child lock function.
As shown in No. 419, child lock is activated by performing a predetermined switch operation (hereinafter, this state is referred to as child lock mode). The child lock mode is configured such that a switch operation for setting various functions does not work unless the child lock mode is released again by a predetermined switch operation.

However, as shown in FIG. 3, a hot air heater such as an oil fan heater is provided with a switch 51 (hereinafter referred to as a switch) within a predetermined period of time, for example, three hours, in order to avoid long-term use without ventilation. A function is provided in which combustion is stopped three hours after the start of combustion unless the extension switch 51 is pressed. The extension switch 51 is also provided with a switch processing unit 52 that performs a child lock process.
Since it is connected to the control unit 53, the switch operation does not work during the child lock mode described above.

[0006]

However, in the above-described conventional configuration, from the user's point of view, the function of extending the combustion time is different from the other various functions only in changing the combustion time. It does not affect the state. In spite of that, during the child lock mode, even the reception of the extension switch for instructing the extension of the combustion time is prohibited. Therefore, even when it is desired to extend the combustion time, the combustion time cannot be extended only after the child lock mode is once released,
There was a problem that it was very inconvenient.

The present invention has been made in view of such a point, and even in the child lock mode, the operation of the extension switch can be accepted as an exception and the combustion time can be extended.

[0008]

In order to achieve the above object, the present invention provides a fire extinguishing timer for stopping the combustion of a warm air heater for a predetermined time, and a combustion time regulated by the fire extinguishing timer. Extension switch for instructing extension of a plurality of switches, a plurality of switches for instructing control of various functions incorporated in the hot air heater, and a chai for prohibiting instructions by the plurality of switches.
And a field lock switch, the extension switch tea
Period of prohibition of switch operation using the Id lock switch
It is possible to accept even during the middle of the day and extend the burning time.
There is a configuration that can be obtained.

[0009] According to the present invention the above-described configuration, even during the child lock mode, the extension switch can be accepted structure
Since you are formed, without causing inconvenience by mischief of a child or the like, it can be simply an extension of the burn time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of a control portion of a petroleum hot air fan heater for explaining the present embodiment.
Is an operation switch for starting or stopping the operation of the device, 3A to 3E are switches used for each function setting operation of the device, and the switches 3A and 3B also serve as child lock switches. Reference numeral 4 denotes a child lock display unit such as an LED that indicates that the child lock mode is in operation. Reference numeral 5 denotes a control unit that controls the operation of the device.

Reference numeral 6 denotes the operation switch 2 and switches 3A to 3A.
The switch input processing unit 7 for confirming the reception of 3E and sending an instruction to the control unit 6, turns on / off the child lock display unit 4.
The child lock display control means 8 for sending an instruction to switch off / flashing confirms that the switches 3A and 3B are simultaneously turned on, switches the child lock mode to "on / off", and controls the child lock display control means 7. And a child lock determining unit 9 for sending a child lock instruction to the switch input processing unit 6. When the child lock determining unit 8 gives an instruction to the child lock mode, the switch input from the switch input processing unit 6 is performed. This is a child lock display switching unit that sends an instruction to switch the lighting display instruction of the child lock display control unit 7 to blinking display when the reception information is input.

Numeral 10 is a fire extinguishing timer means for measuring the combustion time in order to stop the combustion for a predetermined time. When the measured combustion time reaches the predetermined time, an instruction for stopping the combustion is given to the control unit 5, and an extension switch 11 is provided. Is turned on, the combustion time is newly measured from the time to a predetermined time in order to extend the combustion time.

The extension switch 11 does not pass through the switch input processing unit 6 that performs the child lock mode processing based on the output from the child lock determination unit 8.
A signal is sent to the fire extinguishing timer means 10,
Even during the child lock mode, the fire extinguishing timer means 10 can be operated by the instruction. The signal of the extension switch 11 is also input to the child lock display switching means 9, and when the extension switch 11 is pressed, the switches 3A to 3E are pressed.
Is pressed, the child lock display means 4 is turned on and off.

Next, the operation of the above-configured device will be described with reference to the flowchart of FIG. When the device is turned on and the control section is started, the device control is started according to the procedure of the control program shown in the flowchart of FIG.

First, at step 21, the child lock determination section 8 turns on the switches 3A and 3B simultaneously.
It is checked whether or not the operation has been performed, and if they have been turned on at the same time, the process proceeds to step 22, and if they have not been turned on at the same time, the process proceeds to step 23. In step 22, similarly, the child lock determination section 8 switches "on / off" of the child lock mode.

In step 23, if the child lock mode switched in step 22 is "ON", the process proceeds to step 24, and if "OFF", the process proceeds to step 28 and the display means 4 is turned off.

In steps 24 and 25, it is determined whether or not any of the switches 3A to 3E has been operated by the switch input processing section 6 or whether or not the operation switch 2 has been operated. Proceeding to step 26, the display means 4 is flickered. If the operation has not been performed, the process proceeds to step 27, where the display unit 4 is turned on.

In step 29, the extension switch 11 is turned on.
It is checked whether or not it is ON, and if it is ON, the process proceeds to step 30, and if it is not ON, the process returns to step 21.
In step 30, a predetermined time is newly measured by the fire extinguishing timer means in order to extend the combustion time.

Then, it is checked in step 31 whether or not the child lock mode is in effect. If it is not in the child lock mode, the display means 4 is turned off in step 32. If it is in the child lock mode, the display means 4 is turned on in step 33.
Blinks to inform the user of this.

The above steps 21 to 33 are repeatedly executed. As described above, according to this configuration, even during the child lock mode, the extension switch can perform the reception process independently of the other switches regardless of the child mode.

The above embodiment is shown as an example of the present invention, and any structure may be used as long as the objects and effects of the present invention are achieved. For example, a microcomputer may be used as the control means. However, even without using a microcomputer,
A circuit configuration capable of performing the same control may be used.

Although an LED is used as the display means, it indicates to the user that the child lock mode is set, and if the user further operates the switch, the display can be exaggerated. Or a buzzer alarm.

[0023]

As is apparent from the above description of the embodiment, the present invention provides a method for controlling the fire extinguishing timer during the child lock mode.
When instructing to extend the combustion time regulated by the step , the extension switch can be used to extend the combustion time without compromising the safety of the child lock function, which is a device safety device.
Due to the Noh, each time, it is unnecessary to perform cancellation processing of child lock mode, simply burn time can be extended, can be made good without permission have used.
In addition, during child lock mode, control various functions.
When multiple switches are operated, the child
To change the display mode of the
Is in child lock mode.
You can tell
And can be.

[Brief description of the drawings]

FIG. 1 is a block diagram of a safety device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the embodiment.

FIG. 3 is a block diagram of a conventional safety device.

[Explanation of symbols]

 3A switch (child lock switch) 3B switch (child lock switch) 3C switch 3D switch 3E switch 4 child lock display means 5 control unit 6 switch input processing unit 7 child lock display control means 8 child lock determination unit 9 child lock display switching means 10 Fire extinguishing timer means 11 Extension switch

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F23N 5/20 F23N 5/26

Claims (2)

(57) [Claims] 1. A fire extinguishing timer means for stopping the combustion of a warm air heater for a predetermined time, and a fire extinguishing timer means for controlling the fire extinguishing timer means.
Cha prohibiting the extension switch for instructing the extension of the burning time that, a plurality of switches for instructing control of various functions incorporated in the warm-air heating machines, the instruction by said plurality of switches
A Ile-lock switch, the extension switch Ji
Prohibition of switch operation by child lock switch
We can accept even during the period and extend the burning time
Safety device for hot air heaters that can be used. 2. A includes a child lock display means for displaying in child lock mode, the child lock table
The indication means controls various functions during the child lock mode.
When multiple switches are pressed, the display style changes.
The safety device for a hot air heater according to claim 1, wherein the safety device is displayed .