JP2003090624A - Combustion controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heater having a good operability as well as exhibiting good energy saving performance by a method wherein energy saving operation is carried out when a user is absent from a room and normal operation is restored when the user enters the room. SOLUTION: The hot air heater comprises a temperature setting means 12, a temperature detecting means 11, a combustion part 16 for burning a fuel, a human body detecting means 10 for detecting the presence of a human body and a combustion controller section 13 for controlling quantity of combustion according to set temperature data from the setting means 12, room temperature data from the detecting means 11 and a signal from the human body detecting means 10. When the human body detecting means 10 has detected the absence of the human body, the controller section 13 sets a quantity of combustion calculated on the basis of a calculation set temperature data obtained by subtracting a specified temperature A from the set temperature data and the room temperature data, and controls the quantity of combustion according to the setting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control device for a heater which detects a human body and controls combustion.

[0002]

2. Description of the Related Art Conventionally, the combustion amount control of a combustion device such as an oil fan heater has mainly been a method of controlling the combustion amount of a burner by switching the combustion amount in a plurality of stages based on a set temperature and room temperature.

A conventional controller for a warm air heater for controlling room temperature will be described below with reference to FIG. 6, the temperature detecting means 1 detects the temperature inside the room, the temperature setting means 2 allows the user to set the temperature of the room (heated space), and the combustion amount control means 3 causes the temperature setting means 2 to set.
When the room temperature detected by the temperature detecting means 1 is lower than the temperature set by the temperature setting means 2, the burner 5 in the combustion section 4 is instructed to perform strong combustion. Along with driving the convection fan 6 at a high speed,
The combustion amount of the burner 5 is set to weak combustion as the temperature approaches the set temperature, and the convection fan 6 is driven at a low rotation speed to control the room temperature to the set temperature.

[0004]

However, in the above-mentioned conventional configuration, the combustion amount is determined based on the set temperature set by the user and the temperature in the room, so that the same fuel is consumed even when the user leaves the room. There was a problem of doing it.

While the reduction of energy consumption has become a social issue in recent years, reduction of fuel consumption in a hot air heater is also a major issue, and the present invention focuses on this point.

[0006]

In order to solve the above-mentioned conventional problems, the present invention has a temperature setting means for setting an air conditioning temperature,
Temperature detection means for detecting room temperature, a combustion part for burning fuel, human body detection means for detecting the presence or absence of a human body, and controlling the combustion amount of the combustion part based on signals from the temperature setting means and human body detection means. A combustion control unit is provided, and when the human body detecting unit detects that there is no person, the combustion unit controls the combustion amount by subtracting a predetermined temperature A from the temperature set by the temperature setting unit. .

According to the above invention, the combustion control unit instructs the combustion control unit to generate a combustion amount lower than the combustion amount determined by the set temperature data and the room temperature data when there is no person in the room by the signal from the human body detecting means. Therefore, wasteful fuel consumption can be suppressed and energy consumption can be reduced. Further, the combustion temperature is controlled by subtracting the predetermined temperature A from the temperature set by the temperature setting means, so that when the user returns to the room, the indoor temperature can be immediately returned to the temperature set by the user, thus saving energy. And comfort can be achieved, and usability can be improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A combustion control device according to claim 1 of the present invention is a temperature setting means for setting an air conditioning temperature, a temperature detecting means for detecting a room temperature, a combustion section for burning fuel, and the presence / absence of a human body. A human body detection unit for detecting, and a combustion control unit for controlling the combustion amount of the combustion unit based on signals from the temperature setting unit and the human body detection unit, and when the human body detection unit detects the absence of a person, The combustion amount is controlled by subtracting a predetermined temperature A from the temperature set by the temperature setting means in the combustion section.

Further, the combustion control unit can instruct the combustion control unit to use a combustion amount lower than the combustion amount determined by the set temperature data and the room temperature data when there is no person in the room by the signal from the human body detecting means. It is possible to reduce wasteful fuel consumption and reduce energy consumption. Furthermore,
Since the combustion amount is controlled by subtracting the predetermined temperature A from the temperature set by the temperature setting means, when the user returns to the room, the indoor temperature can be immediately returned to the temperature set by the user, thus saving energy and comfort. It is possible to achieve both goodness and usability.

Further, in the combustion control device according to the second aspect of the present invention, the predetermined temperature A can be changed by the user, and the changed predetermined temperature A can be stored in the non-volatile storage memory.

Information about how many times the temperature is lowered below the set temperature, that is, the setting of the predetermined temperature A can be freely set according to the user's preference that energy saving is important or comfort is important. , It can improve usability. Further, since the information set according to the user's preference is stored in the non-volatile memory, it is not necessary to set it again and the usability is improved.

Further, the combustion control device according to claim 3 of the present invention is provided with a time measuring means for measuring a predetermined time A, and there is no person in the human body detecting means continuously during the predetermined time A measured by the time measuring means. A signal is input to the combustion control unit when is detected.

When it is detected that there is no person in the room continuously for the predetermined time A, the signal from the human body detecting means is input to the combustion control section, so that the user can spend a little time in the room. It has never been said that the amount of combustion changes just by moving away from, and energy saving effect can be realized without impairing comfort.

According to a fourth aspect of the present invention, there is provided a combustion control device, which comprises a time measuring means for measuring a predetermined time B and a combustion stopping means.
When the human body detecting means continuously detects the absence of a person for a predetermined time B measured by the time measuring means, the combustion stopping means outputs a combustion stop signal to the combustion control section.

The relationship between the predetermined time B and the predetermined time A is "predetermined time A <predetermined time B".

When it is detected that there is no person in the room continuously for the predetermined time B, a signal is input to the combustion stopping means, so that when the user is away from the room for a long time. Combustion is stopped without any operation, which improves usability, wasteful fuel consumption, and reduces running costs.

According to a fifth aspect of the present invention, there is provided a combustion control device, comprising combustion starting means, and when the combustion stopping means stops the combustion, the human body detecting means then detects the presence of a person. The combustion is started by the signal from.

When a person returns to the room,
The human body detection means detects the presence of a person, and the combustion start means automatically starts combustion, so there is no need for the user to turn the operation switch on again or restart a combustion by pressing a specific switch. Good and energy saving effect can be realized.

A combustion control device according to a sixth aspect of the present invention is provided with a time measuring means for measuring a predetermined time C, and when the combustion is stopped by the combustion stopping means, when the presence of a person is next detected by the human body detecting means. In addition, the combustion is started by a signal from the combustion starting means, and the temperature set by the temperature setting means in the combustion control unit is changed to the predetermined temperature B for a predetermined time C.
The amount of combustion is set based on the temperature to which is added.

When a person returns to the room,
The presence of a person is detected by the human body detecting means, and the combustion is automatically started by the combustion starting means, and the combustion is controlled at a temperature higher than the set temperature for a predetermined time C. Therefore, it is possible to quickly heat the room. Because it is possible, it is easy to use.

A combustion control device according to a seventh aspect of the present invention is provided with a display unit, and controls the lighting of the display unit based on the output signal of the human body detecting means.

When there are no people in the room, the LED
Since the display portion including a display or a liquid crystal display is turned off, wasteful power consumption can be suppressed and an energy saving effect can be realized.

In the combustion control device according to the eighth aspect of the present invention, when the human body detecting means detects that there is a person within a preset detection range, the combustion control unit sets the combustion amount so that the combustion amount becomes a predetermined amount. It is configured to control.

[0024] For example, if the person feels cold when he / she wears heavy clothes and comes out of the cold to return to the room where the room temperature is already stable, and he / she feels cold In this case, a specific amount of combustion set in advance, such as strong combustion, continues for a certain period of time regardless of the room temperature or set temperature by approaching within a predetermined distance set in advance, after which combustion based on normal room temperature and set temperature is automatically performed. Since it returns to the quantity control, there is no need to raise or lower the set temperature, and no specific operation is required, which improves usability.

A combustion control device according to a ninth aspect of the present invention comprises a voice generation means for generating a voice when various signals are generated from the combustion control part, and generates a voice when the human body detection means detects the absence of a person. It is configured to wait for the output from the means.

According to the above invention, "the operation has been stopped" and "the oil has run out when the operation ends or an abnormality occurs. Please refuel ”,“ Ventilate. , Etc., the message from the voice synthesizer is put on standby when the user is not in the room and the message is output when the user returns to the room. It is easy to use without missing out on.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram of a combustion control device according to Embodiment 1 of the present invention.

Reference numeral 10 is a human body detecting means, 11 is a temperature detecting means for detecting a room temperature, 12 is a temperature setting means for setting an air conditioning temperature, and 13 is a combustion control section. The combustion control unit 13 includes a human body detection unit 10 and a temperature detection unit 11,
Based on a signal from the temperature setting means 12, the combustion amount is switched to a plurality of stages, and the burner 14 in the combustion section 16 and the convection fan 1
5 is controlled so that the combustion amount becomes a predetermined value.

FIG. 2 is a flow chart showing the operation of the comparison / determination unit (not shown) in the combustion control unit 13 of the combustion control device according to the first embodiment of the present invention. A timer is provided in the comparison / judgment unit. The operation of the combustion control device having the above configuration will be described with reference to FIG. 1 or 2.

When the human body detecting means 10 detects that there is a user in the room, step 21 makes a Yes determination. Then, in step 22, the set temperature data set by the user by the temperature setting means 12 is used as the set temperature data for calculation for calculating the combustion amount. The calculated set temperature data and the room temperature data detected by the temperature detecting means 11 are compared and judged (step 23), and if they are the same, the current combustion amount is set (step 24). When the room temperature data is lower than the calculation set temperature data, the combustion control unit 13 instructs strong combustion (steps 25 and 26), and when the room temperature data becomes higher than the calculation set temperature data, the combustion control unit 13 reduces the combustion amount. Combustion is instructed (step 27), and the temperature is controlled so that the room temperature reaches the set temperature.

Next, when the human body detecting means 10 detects that there is no user in the room, step 21 judges No. Then, in steps 28 to 29, it is determined whether or not the predetermined time A and the predetermined time B have passed by the time measuring means. If the predetermined time B is being measured and the predetermined time A has not elapsed, the above steps 23 to 27 are performed.
The process of is executed as it is. When the predetermined time B is being measured and the predetermined time A has elapsed, it is determined that the user has left the room, and a value obtained by subtracting the predetermined temperature A from the set temperature data set by the temperature setting means 12 is set for calculation. Use as temperature data. The set temperature data for calculation and the room temperature data detected by the temperature detecting means 11 are compared and judged. When the room temperature data is lower than the set temperature data for calculation, the combustion control unit 13 instructs strong combustion and the room temperature data is calculated. When it becomes higher than the set temperature data for combustion, the combustion control unit 13 instructs the combustion amount to be weak combustion,
The temperature is controlled so that the room temperature becomes the set temperature for calculation (steps 23 to 27 in FIG. 2). Here, in the hot air heater having the function of automatically turning off the thermostat when the room temperature rises above the set temperature, the thermoset off function can be set by setting the calculation set temperature data lower than the set temperature data. May work.

When the user is indoors, the combustion amount is controlled so as to reach the target temperature set by the user, and when the user is not indoors, the combustion temperature is a constant temperature higher than the target temperature set by the user. Compared to the method of stopping the combustion or fixing the weak combustion when there are no people, the comfort is not sacrificed so much as the low temperature is used as a new target temperature to control the temperature and control the combustion amount. Therefore, wasteful fuel consumption can be suppressed. In addition, it allows you to freely set the data about how many times lower than the set temperature set by the user, so you can freely change it depending on comfort or energy saving. Become. If this data is stored in a non-volatile memory such as an EEPROM, it is easy to use without the trouble of setting each time. Further, since the conventional temperature adjustment control is used as it is and only the input data is switched, the inexpensive combustion control device can be realized without significantly increasing the program capacity of the microcomputer (not shown).

Further, when the predetermined time B has passed (step 29), it is judged that the user is away from the room for a long time, and the combustion stop process is executed. Then, since the combustion is stopped, the fuel consumption becomes zero, so that it is possible to reduce energy consumption without wasteful fuel consumption.

(Embodiment 2) FIG. 3 is a flow chart of a combustion control system according to Embodiment 2 of the present invention.

Steps 21 to 29 are the same as the operation of the first embodiment. When the combustion is stopped after the predetermined time B has passed,
The predetermined time C is cleared (step 30). Next, when the user returns to the room and the human body detection unit 10 determines that there is a person, the combustion control unit 13 instructs to start combustion (step 31). At this time, if the predetermined time C has not elapsed, the combustion amount is controlled by using the temperature obtained by adding the predetermined temperature B to the set temperature as the target temperature, and the temperature adjustment control is performed. When the predetermined time C has elapsed, the temperature adjustment control is performed based on the original set temperature and the room temperature. In this way, since the user can warm up the room with a combustion amount stronger than the original combustion amount for a certain period of time when the user returns to the room, the set temperature can be reached quickly. In addition, the above set temperature change is only the set temperature data for calculation for calculating the combustion amount, and the data displayed on the display unit to inform the user of the set temperature and room temperature is the temperature set by the user. Since it is displayed, there is an advantage that it can quickly warm up to the set temperature without giving a feeling of strangeness.

(Third Embodiment) FIG. 4 is a flow chart of a combustion control system according to a third embodiment of the present invention.

When the human body detecting means 10 detects that a person is present within the preset detection range, step 40 returns Yes.
s, and the combustion control unit 1 so that the predetermined combustion amount is achieved.
In step 3, the amount of combustion is controlled (step 41). For example, if you feel cold when you come back to the room where the room temperature is already stable and you are thin when you want to perform heating operation temporarily with a large capacity In the combustion control device of the example, by approaching the detection range, a preset specific combustion amount, for example, strong combustion can be continued for a certain period regardless of the room temperature or the set temperature.
After that, it automatically returns to the normal combustion amount control based on the room temperature and the set temperature, so there is no need to raise or lower the set temperature, and no specific operation is required, which is convenient and quick to warm up. Can be taken.

(Embodiment 4) FIG. 5 is a flow chart of the comparison / judgment unit of the sound generating means in the combustion control unit 13 of the combustion control device in Embodiment 4 of the present invention.

[Operation has been stopped] or "Oil has been reached" when operation ends or an error occurs. Please refuel ”,“ Ventilate. , Etc., there is a voice generation instruction for uttering a message according to the driving state (step 50), it is determined whether a person is in the room (step 51). When the person is not in the room, the process proceeds to No, the output from the voice generating means is waited (step 53), and the voice is not generated until the person returns to the room. When people come back indoors,
In step 51, it is determined to be Yes, and the waiting message is uttered (step 52), so that the user does not miss the message and the usability is improved.

[0041]

As described above, according to the invention of claim 1,
The combustion amount control means can instruct the combustion control part to use a combustion amount lower than the combustion amount determined by the set temperature data and the room temperature data when there is no person in the room by the signal from the human body detection means, so that the waste fuel is not consumed. It is possible to suppress the consumption of electricity and reduce energy consumption. Furthermore, since the temperature adjustment control is performed with the calculation set temperature data obtained by subtracting the predetermined temperature A from the set temperature data, when the user returns to the room,
Since the room temperature can be returned to the set temperature immediately, usability can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention.

FIG. 2 is a flowchart of the first embodiment of the present invention.

FIG. 3 is a flowchart of a second embodiment of the present invention.

FIG. 4 is a flowchart of a third embodiment of the present invention.

FIG. 5 is a flowchart of a fourth embodiment of the present invention.

FIG. 6 is a block diagram of a conventional combustion control device.

[Explanation of symbols]

10 Human body detection means 11 Temperature detecting means 12 Temperature setting means 13 Combustion control unit 16 Combustion part

Claims (9)

[Claims] 1. A temperature setting means for setting an air conditioning temperature, a temperature detecting means for detecting a room temperature, a combustion section for burning fuel, a human body detecting means for detecting the presence or absence of a human body, the temperature setting means and a human body detecting means. A combustion control unit that controls the combustion amount of the combustion unit based on a signal from the means, and when the human body detection unit detects that there is no person, the temperature set by the temperature setting unit in the combustion unit. From the predetermined temperature A
A combustion control device that controls the amount of combustion by pulling. 2. The combustion control device according to claim 1, wherein the predetermined temperature A is configured to be changeable by a user, and the changed predetermined temperature A is stored in a non-volatile storage memory. 3. A time measuring means for measuring a predetermined time A is provided,
3. The combustion control unit according to claim 1, wherein a signal is input to the combustion control unit when the human body detecting unit detects that there is no person continuously for a predetermined time A measured by the time measuring unit. Combustion control device. 4. A predetermined time B measured by the time measuring means, comprising a time measuring means for measuring the predetermined time B and a combustion stopping means.
4. The combustion control device according to claim 1, wherein a combustion stop signal is output from the combustion stop means to the combustion control section when the human body detection means detects that there is no person continuously. . 5. A combustion start means is provided, and when the combustion is stopped by the combustion stop means, the combustion is started by a signal from the combustion start means when the presence of a person is next detected by the human body detection means. The combustion control device according to claim 4. 6. A time measuring means for measuring a predetermined time C is provided,
When the combustion is stopped by the combustion stopping means, the combustion is started by the signal from the combustion starting means when the presence of a person is detected by the human body detecting means, and the temperature setting means is set in the combustion control section for a predetermined time C. The combustion control device according to claim 5, wherein the combustion amount is set based on a temperature obtained by adding a predetermined temperature B to the temperature set in step 6. 7. A display unit is provided, and lighting of the display unit is controlled based on an output signal of the human body detecting means.
7. The combustion control device according to claim 1. 8. The combustion control device according to claim 1, wherein when the human body detecting means detects that a person is present within a preset detection range, the combustion control unit controls the combustion amount so that the combustion amount becomes a predetermined amount. . 9. A sound generating means for generating a sound when various signals are generated from the combustion control section is provided, and when the human body detecting means detects the absence of a person, the sound generating means waits for an output. The combustion control device according to any one of claims 1 to 8.