JPH0439540A - Heating capacity control device for heater - Google Patents

Abstract

PURPOSE:To provide a comfortable heating in a room without any relation with a size of a room by a method wherein a releasing temperature correction part in a heating capacity control device for a hot air heater or the like is corrected in such a way as a maximum heating capacity releasing temperature is corrected to a higher value as a variation in a room temperature is high and a heating load is low. CONSTITUTION:When an operation switch is turned ON, a heating operation is started and then after a specified period of time (for example, after 15 minutes) a variation of a room temperature is judged at a releasing temperature correction part of a micro-computer 5. When it is judge that a heating load is less than a predetermined value, a correction is carried out at a releasing temperature correction part 17 in such a way as a heating is performed under the maximum heating capacity until the temperature reaches a value higher than the set temperature, for example, +2deg is attained. As the room temperature reaches a value of +2deg of the set temperature, the correction is released at the releasing part 16, thereafter the heating capacity is determined in response to a difference between the set temperature and the room temperature. With such an arrangement, it is possible to cause the set temperature to be approached to a body felt temperature in accordance with the heating load value and so a comfortable heating can be realized within a short period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heating capacity control device for hot air heaters and the like.

Conventional technology In general, this type of heating capacity temperature control device changes its heating capacity from strong to weak depending on the difference between the set temperature and the room temperature. In order to raise the temperature, heating is forcibly started at the maximum (strong) heating capacity, and after the room temperature reaches the set temperature, heating is performed at the heating capacity (strong to weak) determined by the difference between the room temperature and the set temperature. It had become.

Problems to be Solved by the Invention However, with such a heating capacity control device, if the room is small, the user may feel cold and angry even when the room temperature reaches the set temperature. This is because when you start heating, especially when you start heating from a low temperature, the room is small and even if the indoor air temperature reaches the set temperature quickly, the walls, floor, ceiling, etc. in the room, which have a large heat capacity, are cold and do not warm up easily. Cold radiation lowers the temperature that humans actually feel.

The present invention was made in view of these points, and an object of the present invention is to provide comfortable heating regardless of the size of the room.

Means for Solving the Problems In order to achieve the above object, the present invention determines the heating capacity based on the output difference between the room temperature detection section and the room temperature setting section, and also starts heating at the maximum heating capacity when starting heating. a capacity control section, a cancellation section that releases the maximum heating capacity at the time of starting heating when the room temperature reaches a release temperature determined based on the set temperature set in the room temperature setting section, and a room temperature and heating at the time of starting heating. and a release temperature correction unit that corrects the release temperature of the maximum heating capacity based on the amount of change from the room temperature after a certain period of time from the start, and the release temperature correction unit is used when the amount of change in the room temperature is large and the heating load is small. The configuration is such that the maximum heating capacity release temperature is corrected to a higher side as the temperature increases.

Effects According to the present invention, with the above configuration, the maximum heating capacity release temperature is set higher as the amount of change in room temperature is larger and the heating load is smaller, that is, the room is smaller. Therefore, the smaller the room, the higher the heating capacity will be until the temperature reaches the set temperature.As a result, even if there is cold radiation from the walls, floor, ceiling, etc., the set temperature will be reached in a short time. Heating, that is, comfortable heating becomes possible.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 2, 1 is a room temperature detection section, and the voltage obtained by dividing the voltage between a room temperature thermistor 2 and a resistor 3 is sent to an A/D converter 4.
The data is input to the A/D converter 4, converted into a digital value, and communicated to the microcomputer 5. 6 is a room temperature setting section, and the down switch 7 and up switch 8 are pulled down through resistors 9 and 10, respectively, and the signal line a tells that the down switch 7 has been pressed, and the signal line a that tells that the up switch 8 has been pressed. The signal lines transmitting the information are each connected to the microcomputer 5.

Furthermore, 11 is a pull-down resistor for the operation switch 12, and a signal line C that indicates that the operation switch has been pressed is also connected to the microcomputer 5.

13 is a load group that performs sequences such as starting, stopping, and heating the warm air heater; 14 is an indicator consisting of an LED that indicates the room temperature and the set temperature.

FIG. 1 is a block diagram showing the above circuit, and 15 determines the heating capacity based on the input from the room temperature detection unit 1 and the room temperature setting unit 6, and starts heating at the maximum heating capacity when heating starts. The heating capacity control unit 16 outputs the maximum heating capacity at the start of heating to a release temperature determined based on the set temperature set by the room temperature setting unit 6 (the set temperature itself or from the set temperature, for example). 2”C
The release unit 17 releases the release when the room temperature reaches a low temperature), and the release unit 17 determines the size of the room based on the temperature difference (amount of change) between the room temperature at the start of heating and the room temperature after a certain period of time after the start of heating, which is detected by the room temperature detection unit 1. A release temperature correction unit that determines the magnitude of the sheath heating load and corrects the maximum heating capacity release temperature corrects the maximum heating capacity release temperature to a higher side as the amount of change in room temperature is large and the heating load is small. It is composed.

The operation of the above configuration will now be described according to the flowchart in FIG. First, when the operation switch is turned on, the initial setting value of the LED of the display 14, for example, the 20'C section lights up, and at the same time, the room temperature (for example, 10.degree. C.) detected by the room temperature thermistor 2 flashes. Here, by operating the up/down switch 8, the initial setting value of 20'C can be changed to a desired temperature. Then, the changed setting value is displayed by lighting.

After the operation switch is turned on, heating is started at the maximum heating capacity, and after a certain period of time (for example, 15 minutes), the amount of change in the room temperature is determined by the microcomputer 95 (7) M temperature correction section 17. In other words, when the heating load is determined to be 4.5 tatami mats or less at a predetermined amount, for example, 15 deg or more as shown in Figure 4 (A), the amount of change in the room temperature will not change even if the room temperature reaches the set temperature. Because of the steepness, indoor walls, floors,
The temperature of the ceiling, etc. is considerably lower than the room temperature, and the perceived temperature is thought to be lower due to the influence of cold radiation. Therefore, the release temperature correction unit 17 performs correction so that heating is performed at the maximum heating capacity until the temperature reaches a temperature higher than the set temperature, for example, plus 2 degrees. In this case, the set temperature on the display remains unchanged without correction. And set temperature plus 2 de
When the room temperature reaches g, the cancellation unit 16 cancels the correction, and thereafter the heating capacity is determined based on the difference between the set temperature and the room temperature.

Next, when the amount of change is 10 degrees or more and less than 15 degrees and the heating load is determined to be 6 tatami mats, the set temperature will be increased by 1.5 cle.
Maximum heating is performed until the temperature reaches g, and the temperature is corrected.

Furthermore, as shown in Figure 4 (B), the amount of change is 5 degrees or more ~ 1
If the amount of change is less than 0 degrees, a temperature correction of plus l degree is performed, and if the amount of change is 5 degrees, no temperature correction is performed.

As mentioned above, depending on the size of the heating load, the room temperature, walls, floor, etc.
Even if the temperature rise is different from the ceiling and there is a difference in cold radiation, the temperature correction value is changed accordingly, so the set temperature can be brought closer to the sensible temperature, and comfortable heating can be achieved in a short time.

In addition, in the above embodiment, four types of temperature correction are performed for the amount of change in room temperature, but this may be further subdivided, and the changing temperature and correction temperature can be freely changed depending on the heating capacity of the heater. In addition, the above-mentioned temperature correction, that is, the canceling unit 16 and the canceling temperature correcting unit 17 shown in FIG. You may.

Effects of the Invention As is clear from the description of the embodiments, according to the present invention, comfortable heating can be obtained in a short time without feeling cold due to cold radiation, which depends on the size of the room. That is, the magnitude of the heating load is determined based on the value of the rise in room temperature after a certain period of time from the start of heating, and the difference between the desired temperature and the perceived temperature due to the influence of cold radiation is reduced. In addition, since heating is performed at maximum heating capacity, comfortable heating can be achieved in a short time.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a heating capacity control device for a heater according to an embodiment of the present invention, Fig. 2 is a specific circuit diagram thereof, Fig. 3 is a flowchart explaining the same operation, and Fig. 4 (A).
, (B) is a graph showing the relationship between room temperature and the temperature of walls, etc. 1... Room temperature detection unit, 6... Room temperature setting unit, 15... Heating capacity control unit, 16...
Canceling section, 17... Canceling temperature correction section. Name of agent: Patent attorney Shigetaka Awano (1 person) Figure 1 Figure Figure 1 Procedural amendment (Jiai) September 1990, 1 If date 6, page 8, line 12 of the statement of contents of the amendment, ``It will be less. .Also, "at maximum heating capacity" will be corrected to "at maximum heating capacity until it decreases." 2 Name of the invention Relationship to the case of a person correcting heating capacity control device of a heater Patent Issued M
Personnel Address 1006 Oaza Kadoma, Kadoma City, Osaka Name (582) Representative of Matsushita Electric Industrial Co., Ltd.
Akio Tanii 4 Agent 571 Address 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] a heating capacity control unit that determines the heating capacity based on the output difference between the room temperature detection unit and the room temperature setting unit and starts heating at the maximum heating capacity at the time of starting heating; and a room temperature setting unit that determines the heating capacity at the maximum heating capacity at the time of starting the heating. A release section that releases when the room temperature reaches the release temperature determined based on the set temperature set in a release temperature correction unit that corrects a heating capacity release temperature, and the release temperature correction unit is configured to correct the maximum heating capacity release temperature to a higher side as the amount of change in room temperature is large and the heating load is small. Machine heating capacity control device.