JPH04353910A - Temperature controller for air conditioning equipment - Google Patents

Abstract

PURPOSE:To obtain control suitable for the environment condition of an installation place as a device is used by correcting control data so that a device is matched with the environment condition of an installed place whenever an air conditioning device is operated. CONSTITUTION:A RAM 2 being the storage means of control data is provided on a controller 1 controlling the combustion quantity of a combustion unit 8. One piece among plural pieces of control data stored in the RAM 2 is selected and the combustion quantity is controlled by selected control data. When time counted by a timer 5 from the start of an operation reaches prescribed time, the controller 1 reads room temperature from a room temperature detecting means 4. Since the rising method of room temperature is changed by the environment condition of the room where an oil fan heater is installed, a corrected control zone is adopted for a next operation instead of a control zone correcting a correction value to the setting temperature by the high/low direction of the temperature difference of room temperature to the setting temperature. Thus, correction is repeated whenever the oil fan heater is operated.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a temperature control device for heating and cooling equipment such as oil fan heaters and other heating equipment, and air conditioners that can switch between cooling and heating. The present invention relates to a temperature control device for heating and cooling equipment that can control temperature to adapt to.

0002

2. Description of the Related Art In air-conditioning equipment having a temperature control function, when a set temperature corresponding to a desired indoor temperature is selected, the temperature is controlled to approach the set temperature. For example, in a combustion heating device such as an oil fan heater, when the heating operation is performed at the maximum combustion amount of the combustion heating device and the indoor temperature rises and approaches the set temperature, the combustion amount is reduced to the minimum temperature control as shown in Figure 5. The temperature is controlled to be reduced step by step in units of resolution to reach the set temperature. The temperature control numbers shown in Figure 5 indicate that the minimum resolution (LSB) of temperature control is 3LSB at 1°C.
Therefore, 1LSB is approximately 0.3°C, and a control zone is provided in which the combustion amount is changed every 2LSB (≈0.6°C). Setting the control zone for each 2LSB takes into account the minimum resolution for AD input to the microcomputer of the control device and its differential, and in reality, values around 2 to 3LSB are used to prevent control blinking. At the same time, the device is controlled to operate at the maximum amount of heat that the device can produce up to the set temperature. The temperature control method shown in FIG. 5 is shown as a flowchart in FIG. As shown in the figure, in the direction in which the indoor temperature increases, the heat generation switching is controlled to decrease by one step for every 2LSB, and conversely, in the direction in which the indoor temperature decreases, the heat generation switching is controlled to increase by one step. There is. In addition, as another means of temperature control, there is a temperature control method called a ``good morning timer'' that sets the room to a desired temperature when you wake up. As shown in Table 2, the setting time for each temperature difference is stored in the storage means provided in the control device so that the set time up to the set time can be selectively controlled depending on the temperature difference between the set temperature and the room temperature. Uniform control is performed using the control data.

0003

[Problems to be Solved by the Invention] However, with the uniform temperature control method shown in the above-mentioned prior art, the size of the room in which the air conditioning equipment is installed, the quality of the room (the degree of sealing of the room, the window There were many cases where the desired set temperature could not be obtained or unnecessary fuel consumption occurred due to environmental conditions such as the area of the opening/closing part (e.g., the area of the opening/closing part, etc.), the height of the room, the number of people in the room, etc. In the case of the former temperature control shown in the above-mentioned conventional technology, for example, if a combustion device with a maximum calorific value of 3000 kcal is used in a room of a wooden house, the set temperature can be set to 2.
When the temperature is set at 2℃, the indoor temperature initially matches that of the room and the calorific value of 3000kcal increases until it reaches 22℃ - 0.6℃ = 21.4℃, but when it reaches 21.4℃, it becomes as shown in Figure 5. As shown, the calorific value changes to 1700kcal, so
When this 1,700kcal heating charge does not match the environmental conditions of the room and is too small, the indoor temperature drops to 22℃ -
It drops to 1.2℃=20.8℃ and becomes 3000kca again.
The calorific value changes to l. For this reason, even though the indoor temperature is set at 22℃, the control temperature is 20.8~21℃.
．． The temperature is repeated between 4°C and no matter how long it takes, the set temperature of 22°C is not reached, and the user does not feel the desired warmth. To solve this problem, the amount of heat generated is 1700k.
If cal is set to, for example, 2400 kcal, the indoor temperature will be too high. In addition, in the case of temperature control using the latter of the above conventional techniques, if the environmental conditions of the room in which the air conditioning equipment is installed and the set time do not match, a sufficient indoor temperature may not be reached at the set time, or operation may start too early. This results in unnecessary fuel consumption, etc. The present invention was made in view of the above-mentioned problems caused by conventional temperature control devices.The present invention corrects control data to match the environmental conditions of the room set each time the air conditioning equipment is operated, and An object of the present invention is to provide a control device for air-conditioning equipment that can correct temperature control to suit environmental conditions.

0004

[Means for Solving the Problems] A first means of the present invention for achieving the above object is to operate the temperature control step by step at the minimum resolution of temperature control with respect to the set temperature which is set step by step at the minimum resolution that can be set. In a temperature control device for heating and cooling equipment that controls the indoor temperature to approach the set temperature, the temperature control device controls the indoor temperature at the start of operation and the set temperature in response to each stage of the temperature difference between the room temperature at the start of operation and the set temperature.
Setting control data corrected in a unit of minimum resolution of temperature control that is smaller than the minimum resolution of the set temperature, and detecting the indoor temperature after a predetermined period of time each time the air conditioning equipment is operated based on the control data. , is configured as a temperature control device for heating and cooling equipment, characterized in that the correction value of the control data is corrected based on the temperature difference between the indoor temperature and the set temperature. Further, the second means of the present invention is a heating and cooling equipment that starts operating earlier than the set time by a set time based on the temperature difference between the set temperature and the room temperature in order to reach a predetermined set temperature at a predetermined set time. The temperature control device detects the temperature difference between the room temperature and the set temperature at the predetermined set time each time the air conditioning equipment is operated,
The present invention is configured as a temperature control device for heating and cooling equipment, which is characterized in that the set time is corrected based on the temperature difference.

[0005]

[Operation] According to the first means of the present invention, the temperature difference between the indoor temperature at the start of operation and the set temperature is detected, and the temperature is controlled at the set temperature to which a correction value corresponding to the temperature difference is added. By measuring the indoor temperature after a predetermined period of time and detecting the temperature difference from the set temperature, it is possible to determine whether the control data matches the environmental conditions of the room in which the heating and cooling equipment is installed. Therefore, the above correction value is corrected according to the direction of the temperature difference between the indoor temperature and the set temperature after a predetermined period of time, and the temperature is controlled using the corrected control data during the next operation, and the correction is made every time the air conditioning equipment is operated. If repeated, the control data will match the environmental conditions of the room in which it is installed. Further, according to the second means of the present invention, the temperature difference between the indoor temperature and the set temperature is detected, the operation is started at the set time corresponding to the temperature difference, and the indoor temperature is set at the set time. By measuring the temperature and detecting the temperature difference from the set temperature, it can be determined whether the control data (set time) match the environmental conditions of the room in which the heating and cooling equipment is installed. Therefore, if the set time is corrected according to the direction of the temperature difference at the set time, and the correction is repeated every time the air conditioning equipment is operated, the control data will match the environmental conditions of the room in which it is installed. Become.

[0006]

[Embodiment] Next, a first embodiment in which the present invention is applied to a petroleum fan heater will be described. FIG. 1 is a block diagram showing the configuration of an example temperature control device. The controller 1 that adjusts the combustion amount of the combustor 8 of the oil fan heater is provided with a RAM 2 that is a storage means for control data.
The combustion amount is controlled by selecting one of a plurality of control data, which will be described below, stored in the control data. The control data stored in the RAM 2 includes five control zones corresponding to each stage of the temperature difference between the indoor temperature at the start of operation and the set temperature, as shown in FIG. 7, for example.
A control temperature a with a different correction value for the set temperature A is set for each control zone. This correction value is a unit for each minimum resolution of the indoor temperature by the microcomputer of the controller 1. In the example shown in Fig. 7, 1°C = 3LSB, so 1LSB = 0.3°C, and the correction value for the set temperature A. The values are corrected in steps of 0.3°C. In FIG. 1, a set temperature A in 1° C. units, which is the minimum resolution of temperature setting, is inputted to the controller 1 from the temperature setting means 3, and an indoor temperature R is inputted from the indoor temperature detection means 4. Now, if the set temperature A is specified as 22°C and the indoor temperature R is 12°C when the operation switch is turned on, the temperature difference between the set temperature A and the indoor temperature R is 10°C. From the example shown in FIG.
Then, the oil fan heater starts operating. The timer 5 connected to the controller 1 at the same time as this operation starts,
The time from the start of operation is counted. When the time counted by the timer 4 from the start of operation reaches a predetermined time, the controller 1 reads the indoor temperature R from the indoor temperature detection means 4. The indoor temperature after this predetermined period of time has changed depending on the environmental conditions of the room where the kerosene fan heater is installed, so if the relationship between the indoor temperature and the set temperature A is as follows, the set temperature A The corrected control zone will be changed to the one that corrects the correction value for the next time, and the corrected control zone will be adopted for the next operation.

■ If the indoor temperature R after a predetermined period of time is R≧A
When the temperature is +0.3, the environmental conditions such as the airtightness of the room where it is installed means that it is easy to warm up, so the control zone is (
3) is corrected in the negative direction, that is, to (2). ■The indoor temperature R after a certain period of time is A-0.3<R<A
When it is +0.3, the control zone (3) matches the environmental conditions of the room, so the control zone (3)
shall remain as is. ■When the room temperature R after a predetermined period of time is R≧A-0.3, the temperature diffusion of the room is high and the environmental conditions make it difficult to warm up, so the control zone (3) is moved in the positive direction, that is, the control zone. (4) is revised. In this way, by correcting the set position of the control zone and changing the correction value each time the kerosene fan heater is operated, as the number of times the kerosene fan heater is used increases, the control data will adapt to the environmental conditions of the installation location. It can be done. Therefore, if the set temperature A in the above example is 22°C, by repeating this operation, the indoor temperature R will fall within the range of 21.7°C≦R≦22.3°C, which is the 22°C desired by the user. It is possible to raise the indoor temperature without fail.

Next, a second embodiment in which the present invention is applied to a petroleum fan heater will be described. In this embodiment, in order to raise the indoor temperature to a predetermined set temperature at a predetermined set time, the set time from the start of operation to the set time is controlled based on the temperature difference between the set temperature and the indoor temperature. This is a means of temperature control called a "timer". FIG. 2 is a block diagram showing the configuration of the temperature control device of this embodiment. The controller 6 that adjusts the combustion amount of the combustor 11 of the kerosene fan heater is provided with a RAM 7 that is a storage means for control data, and the indoor temperature at the start of operation stored in this RAM 7 and the set temperature are stored in the controller 6. The activation of the oil fan heater is controlled according to a set time corresponding to the temperature difference. Furthermore, a set temperature is inputted to the controller 6 from the temperature setting means 9, and an indoor temperature is inputted from the indoor temperature detection means 10. Furthermore, a timer 12 is connected to the controller 6, and the timer 12 is activated by the output of the set time stored in the RAM 7, counts the set time, and sends a signal to start the operation of the kerosene fan heater at the set time. Output to controller 6. Figure 3 is a flowchart showing the control method by the above control device. During the first operation, the initial setting time stored in RAM 7, for example, corresponds to the temperature difference between the set temperature and the room temperature as shown in Figure 8. The operation will start at the set time. When the predetermined set time has arrived after starting the operation (step 1), the controller 6 detects the indoor temperature using the indoor temperature detecting means 1.
0, and determine whether the indoor temperature is higher or lower than the set temperature in steps 2 and 3. If they are almost the same, the set time is compatible with the environmental conditions of the room where the kerosene fan heater is installed. (Step 4). When it is determined in step 2 that the indoor temperature is higher than the set temperature, the set time stored in RAM 7 is corrected to be delayed (step 6), and conversely, when it is determined that the indoor temperature is lower than the set temperature in step 3, ，
The setting time stored in the RAM 7 is corrected to be faster (step 5). To explain the above control in relation to the example of Fig. 8, for example, if the temperature difference between the indoor temperature and the set temperature is 12°C or more, the operation will start 25 minutes before the set time, so this will be the predetermined time. Detect the indoor temperature at the set time and if it is higher than the set temperature, set the correction value to -1 and set it to 25 minutes - 1 minute = 24 for the next operation.
RAM so that the operation starts 24 minutes ago.
Correct the setting time stored in 7. When the vehicle is operated again under the same conditions, if the indoor temperature is still higher than the set temperature, the correction value is set to -2. This correction value rewriting is repeated every time the operation is performed, and the correction value is corrected to the set time correction value that matches the environmental conditions of the room in which it is installed, and the final limit of the correction value is set to -15, and the correction value is set up to 10 minutes before the final correction. do. Conversely, if the temperature difference between the indoor temperature and the set temperature is 6°C or less, and the indoor temperature at the set time is lower than the set temperature, the correction value is set to +1, and this is repeated for each operation to adjust the correction value. The final limit will be set to +15 and the correction will be made up to 25 minutes before the final time. The upper and lower limits of this correction value are regulated by limit means provided in the controller 6. The kerosene fan heater equipped with the embodiment control device that can adapt the setting time control to the environmental conditions of the room in which it is installed becomes more suitable for the room in which it is installed as the number of times it is used increases.

In the RAM 2 or 7, which is the control data storage means shown in the first and second embodiments, corrected control data is updated and stored every time the operation is performed. If the power is cut off due to an accident, the corrected control data will be lost. Therefore, in preparation for such an unexpected situation, a backup battery 16 is connected to the power circuit of the microcomputer 14, as shown in FIG. ing. Note that the diodes 17 and 18 are provided to prevent current from flowing into the backup battery 16 and the power supply circuit 15. The first and second embodiments described above both show examples in which the present invention is applied to oil fan heaters, but the present invention also applies to combustion heating equipment using oil, gas, etc.
Needless to say, the present invention can be applied to heating and cooling equipment that has a temperature control device, such as electric heating equipment such as electric fan heaters, or air conditioners that can switch between heating and cooling.

0010

[Effect of the invention] The present invention is constructed as explained above,
According to the first means of the present invention, the temperature difference between the indoor temperature at the start of operation and the set temperature is detected, the temperature is controlled at the set temperature with a correction value corresponding to the temperature difference, and the temperature is controlled for a predetermined period of time. If the indoor temperature is measured after the elapsed time and the temperature difference from the set temperature is detected, it can be determined whether the control data is compatible with the environmental conditions of the room in which the heating and cooling equipment is installed. Therefore, the above-mentioned correction value is corrected according to the direction of the temperature difference between the indoor temperature and the set temperature after a predetermined period of time has elapsed, and the temperature is controlled using the corrected control data during the next operation, and each time the air conditioning equipment is operated. By repeating the correction, the temperature control data will match the environmental conditions of the room where it is installed. Further, according to the second means of the present invention, in order to obtain a desired indoor temperature at a set time, a temperature difference between the indoor temperature and a set temperature is detected, and the operation is started at a set time corresponding to the temperature difference. Then, when the indoor temperature is measured at the set time and the temperature difference from the set time is detected, it is possible to determine whether the environmental conditions of the room where the air conditioning equipment is installed match the control data (set time). can be judged. Therefore, if the set time is corrected according to the direction of the temperature difference at the set time, and the correction is repeated each time the air conditioning equipment is operated, the control data will be adapted to the environmental conditions of the room in which it is installed. Become. As described above, according to the present invention, temperature control can be adapted to the environmental conditions of the room in which the heating and cooling equipment is installed, so that the desired indoor temperature can be quickly obtained and the set temperature can be accurately reached. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a first embodiment according to the present invention.

FIG. 2 is a block diagram showing the configuration of a second embodiment according to the present invention.

FIG. 3 is a flowchart showing a control method according to a second embodiment.

FIG. 4 is a block diagram showing the power supply circuit of the control device.

FIG. 5 is a conceptual diagram showing a conventional temperature control method.

FIG. 6 is a flowchart showing a conventional temperature control method.

FIG. 7 is a chart showing an example of control zone settings in the first embodiment.

FIG. 8 is a chart showing an example of setting the control time in the second embodiment.

[Explanation of symbols]

1, 6...Controller 2,7...RAM 3, 9...Temperature setting means 4,10... Indoor temperature detection means 5, 12...timer A...Set temperature R…Indoor temperature a...Control temperature

Claims (2)

[Claims] [Claim 1] A temperature control device for air-conditioning equipment that controls the operation of a room in a room closer to the set temperature by controlling the operation step by step at the minimum resolution of temperature control for a set temperature that is set step by step with the minimum resolution that can be set, Corresponding to each stage of the temperature difference between the indoor temperature at the start of operation and the set temperature, set control data corrected in units of minimum resolution of temperature control smaller than the minimum resolution of the set temperature, and calculate the control data. A heating and cooling device, characterized in that each time the heating and cooling device is operated, the indoor temperature is detected after a predetermined period of time has elapsed, and the correction value of the control data is corrected based on the temperature difference between the indoor temperature and a set temperature. Temperature control device. 2. A temperature control device for heating and cooling equipment that starts operation earlier than the set time by a set time based on the temperature difference between the set temperature and the room temperature in order to reach a predetermined set temperature at a predetermined set time, Each time the heating and cooling equipment is operated, a temperature difference between the room temperature and the set temperature at the predetermined set time is detected, and the set time is corrected based on the temperature difference. Temperature control device for heating and cooling equipment.