JPH04190013A - Control device of space heating equipment - Google Patents

Abstract

PURPOSE:To make a change in the set temperature unnecessary and provide a pleasant space heating by shifting in several steps the room temperature that is detected by a temperature sensor to hot temperature side progressively according to the elapsed time and, at the same time, stopping the shift of the room temperature at a certain temperature after a specified time has passed. CONSTITUTION:As soon as the combustion starts, a timer 5 counts the time of elapse since the combustion is started, and according to the time that is counted, a room temperature shift-up device 6 makes a correction in the range of 0.5-2 deg.C to the room temperature that is detected by a room temperature sensor 1, and, further, after a specified time, 2 hours 30 minutes has passed, the correction is fixed to the addition of 2 deg.C. By the shiftings of several times toward the side of high temperature for the room temperature the quantity of combustion that is controlled by the deviation of temperature from the temperature set by a temperature setting device 3 is held several steps below the quantity of combustion by the actual deviation so that it is possible to control the combustion according to the temperature that is felt with the radiation from the wall faces taken in consideration. It is, therefore, not necessary to change the set temperature of the temperature setting device, and the correction of the room temperature according to the elapsed combustion time by the room temperature shift-up device 6 is automatically carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a control device for a heating appliance such as a fan heater, which switches the amount of combustion depending on the deviation between room temperature and a set temperature.

<Prior art> Conventionally, this type of device is equipped with a room temperature sensor that detects the room temperature and a temperature setting means that sets the room temperature. The system compares the temperature with the set temperature and controls the combustion amount according to this deviation to maintain the temperature in the heating room at the set temperature and provide comfortable heating.

<Problems to be Solved by the Invention> However, in this conventional system, since the temperature of the walls, floor, ceiling, etc. in the room is lower than the air in the room at the beginning of heating, it is difficult to maintain the room temperature at the set temperature. Even so, the sensible temperature that people feel is low, and conversely, if the heating continues for several hours, the wall temperature rises and receives radiant heat from the wall, making the sensible temperature feel higher than the set temperature that is maintained. ,
Room temperature and sensible temperature did not necessarily match.

Therefore, the user must change the temperature setting at any time according to the elapsed combustion time, which is extremely cumbersome to operate.Furthermore, if the user does not change the temperature setting due to the hassle, it may become too cold or too hot. However, the heating was far from comfortable.

<Means for solving the fish problem> This invention focuses on this point, and in order to solve the above-mentioned deficiencies and α, the present invention is particularly configured to include a room temperature sensor that detects the room temperature, a temperature setting means that sets the room temperature, In a device in which the combustion amount is controlled according to the deviation between the room temperature detected by the room temperature sensor and the set temperature set by the temperature setting means, the room temperature detected by the room temperature sensor is set at the time from the start of operation. It is equipped with a room temperature shift up means that receives a signal from a timer that counts the number of openings and sequentially shifts the room temperature several levels to a higher temperature side according to the elapsed time, and furthermore, after the predetermined time has elapsed, the room temperature is shifted to a constant temperature. be.

Function: Starts at the same time as the start of combustion, the timer 5 measures the elapsed time from the start of combustion, and according to the elapsed time measured by the timer 5, the room temperature shift up means 6 adjusts the room temperature detected by the room temperature sensor 1. Correction is made within the range of 0.5 to 2℃, and after the specified opening time of 2 hours and 30 minutes has elapsed,
It is fixed to the addition of ℃, and by shifting several layers to the high temperature side with respect to the actual room temperature, the combustion amount controlled by the deviation from the set temperature set by the temperature setting means 3 can be adjusted to the actual temperature. Since the combustion amount is kept several steps lower than the combustion amount due to deviation, combustion control can be performed according to the sensible temperature, taking into account radiation from the wall surface, and there is no need to change the temperature setting of the temperature setting means 3 each time, and the room temperature can be shifted. The room temperature is automatically corrected in accordance with the elapsed combustion time by the raising means 6, which is extremely convenient and always provides comfortable room temperature control.

<Embodiment> Next, a control device for a heating appliance according to the present invention will be described with reference to a preferred embodiment shown in the drawings.

1 is a room temperature sensor consisting of a thermistor, etc., which indicates the current room temperature T.
is detected and inputted to the comparison calculation means 2 as room temperature information.

3 sets the desired indoor temperature using the temperature setting means and inputs it to the comparison calculation means 2, which compares it with the above-mentioned current room temperature T and controls the temperature via the combustion control means 4 according to this deviation. The combustion amount is controlled to maintain the room temperature at a set temperature.

Reference numeral 5 denotes a timer that starts timing upon receiving the combustion start signal from the comparison operator Pi2, and counts the elapsed time from the start of combustion, including when combustion is stopped during save operation, and counts the time at 30-minute intervals from 1 hour onwards. The time arrival signal is output to the room temperature shift-up means 6 a total of four times until the time 30 minutes have elapsed.

In addition, by receiving the above-mentioned time arrival signals, the room temperature shearing means 6 adjusts the current room temperature T by 0.5 according to the elapsed time.
℃, 1℃, 1.5℃, and 2℃, which are sequentially increased by 0.5℃, are outputted to the comparison calculation means 2 so as to be fixed at 2℃ after 2 hours and 30 minutes, and the room temperature T By reading the value shifted to the high temperature side with the elapsed time,
The combustion amount is suppressed to a lower level than the control based on the deviation between the actual room temperature T and the set temperature.

Furthermore, the comparison calculation means 2, the time measurement means 5, and the room temperature shift up means 6 are each constituted by a microcomputer 7.

Next, regarding the operation of one embodiment of this invention, 70 shown in FIG.
- Explain according to the chart diagram.

First, when the operation switch (not shown) is turned on to start the ONL operation, the timer 5 starts measuring time, the room temperature sensor 1 detects the current room temperature T, and the set temperature is set by the temperature setting means 3. Comparison calculation means 2 compares the results, and combustion control means 4 controls the amount of combustion in accordance with the deviation so that room temperature T becomes the set temperature, and radiant heat from indoor walls etc. is obtained. When one hour has passed since the start of combustion, the timer 5 determines whether one hour has passed since the start of combustion (step 8). If NO, it continues to determine that one hour has passed; if YES, the room temperature is shifted. By outputting a signal to the up means 6, the room temperature shift up means 6 reads the detected room temperature T of the room temperature sensor 1 input into the comparison calculation means 2 as a value shifted up by 0.5° C. to the high temperature side (step 9). ), the combustion amount is controlled to be lower than the actual amount based on the deviation between this corrected room temperature and the set temperature, and control is performed that takes into account the temperature rise due to radiant heat from walls etc. The control of adding 0.5℃ to the temperature was continued for 30 minutes, and when 1 hour and 30 minutes had passed since the start of combustion, this was judged again (Step 10), and if YES, the room temperature T was increased by 1℃ from the actual temperature. The value is loaded and combustion is controlled for 30 minutes up to 2 hours (step 11). Next, in step 12, it is determined whether 2 hours have elapsed, and if YES, step 1 is started.
Go to step 3, read the room temperature T this time with a value increased by 1.5 degrees Celsius, control the combustion accordingly, then go to step 14 to determine whether 2 hours and 30 minutes have passed, and if YES, go to step 15 to increase the room temperature T. is read as a value that is 2°C higher than the actual detected temperature, and thereafter combustion control is performed using this room temperature as a value that is 2°C higher than the actual detected temperature until the operation is stopped.

Therefore, depending on the elapsed time from the start of combustion, the room temperature sensor 1
By shifting the detected room temperature T to the high temperature side, combustion control based on the deviation from the set temperature can be suppressed to a low combustion amount that takes into account radiant heat from walls, etc., and the user can set the temperature individually. It is extremely convenient because the settings of the means 3 are automatically changed according to the elapsed time without the need for the troublesome operation of changing the settings each time, and it is possible to obtain detailed and comfortable heating.

<Effects of the Invention> In short, the present invention includes a room temperature sensor 1 that detects room temperature and a temperature setting means 3 that sets the room temperature, and detects the difference between the room temperature detected by the room temperature sensor 1 and the set temperature set by the temperature setting means 3. In a device that controls the combustion amount according to the elapsed time, the room temperature detected by the room temperature sensor 1 is controlled according to the elapsed time by receiving a signal from the timer 5 that counts the time from the start of operation. Since the room temperature shift-up means 6 is provided to sequentially shift the room temperature several levels to the high temperature side, and after a predetermined period of time has passed, the room temperature is shifted to a constant temperature, so that the radiant heat from the wall surface, etc. increases according to the duration of combustion. Combustion control is carried out automatically with consideration given to the above, and there is no need for the user to change the set temperature every time as in the past, making it extremely convenient and safe to use.
Moreover, it has various advantages such as being able to always obtain comfortable heating through fine-grained indoor temperature control.

[Brief explanation of drawings]

Fig. 1 is a schematic block diagram of an electric circuit showing a control device for a heating appliance according to an embodiment of the present invention, and Fig. 2 shows the main parts of the same.
0-chart diagram. 1... Room temperature sensor, 3... Temperature setting means, 5
... Time measuring means, 6... Room temperature shift up means.

Claims (1)

[Claims] It is equipped with a room temperature sensor 1 for detecting room temperature and a temperature setting means 3 for setting the room temperature, and the combustion amount is controlled according to the deviation between the room temperature detected by the room temperature sensor 1 and the set temperature set by the temperature setting means 3. In this system, the room temperature detected by the room temperature sensor 1 is shifted by several degrees to a higher temperature side according to the elapsed time in response to a signal from the timer 5 that counts the time since the start of operation. 2. A control device for a heating appliance, further comprising a heating means 6, and further comprising a shift of the room temperature to a constant temperature after a predetermined period of time has elapsed.