JP2010127580A - Method for controlling temperature of dug kotatsu - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for controlling the temperature of a dug Kotatsu, capable of preventing occurrence of situations that a user feels too hot or too cold, and energy is wastefully consumed due to a starting-up operation performed independently from the temperature inside of a storage. <P>SOLUTION: The dug Kotatsu includes a table 1, the storage 2 recessed on a floor surface at a lower part of the table 1 and receiving a user's body, a heating means 3 for heating the inside of the storage 2, an inside-storage temperature measuring means for measuring the temperature in the storage 2, and a control unit for controlling the heating means 3. The starting-up operation of high output of the heating means 3 is performed in starting a heating operation, and the steady operation of the output of the heating means 3 smaller than that in the starting-up operation is performed after the starting-up operation. A time to perform the starting-up operation is automatically set according to the temperature measured by the inside temperature measuring means in starting the heating operation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for controlling the temperature of a digging iron.

  Conventionally, it has a table, a furnace box in which a part of a body such as a foot is housed, a heating unit that heats the inside of the storage, and a control unit that controls the heating unit. 2. Description of the Related Art There is a known digger that performs a start-up operation in which the output of the heating means is large at the start and performs a steady operation in which the output of the heating means is smaller than that in the start-up operation after the start-up operation (see, for example, Patent Document 1).

In this case, the heat source temperature of the heating means is measured, the start-up operation is performed until the heat source temperature reaches a predetermined temperature, and then the steady operation is performed.
Japanese Patent Laid-Open No. 9-229378

  However, in the above conventional example, the temperature in the storage (or the ambient temperature) is not measured, but only the heat source temperature is measured. Therefore, the heating operation is stopped and the storage is still in the storage. Even when the heating operation is performed again in a state where the temperature is high, if the heat source temperature is low, the start-up operation is performed regardless of the temperature in the storage. For this reason, the temperature in the container has risen too much, and it has become too hot for the user, and energy consumption has been wasted.

  In addition, when heating operation is performed again in a state where the temperature in the storage is low, if the heat source temperature reaches a predetermined temperature, the operation moves to steady operation even if the temperature in the storage is not sufficiently increased. If it shifts, it takes time until the temperature in the container rises sufficiently, and during that time, it is cold for the user.

  The present invention has been invented in view of the above-mentioned conventional problems, and the object of the present invention is that it is too hot for the user due to the start-up operation regardless of the temperature in the container. An object of the present invention is to provide a temperature control method for a dug-going bar that prevents the occurrence of a situation such as cold or waste of energy consumption.

  In order to solve the above-mentioned problem, in the temperature control method of the digging goat A according to claim 1, the table 1 is recessed in the floor surface below the table 1 and is part of the user's body. Or the storage 2 in which all are accommodated, the heating means 3 for heating the inside of the storage 2, the internal temperature measuring means for measuring the temperature in the storage 2, and the control unit for controlling the heating means 3. Prepare. A start-up operation with a large output of the heating means 3 is performed at the start of the heating operation, and a steady operation with a smaller output of the heating means 3 than the start-up operation is performed after the start-up operation. The time for the start-up operation is automatically set according to the temperature measured by the internal temperature measuring means at the start of the heating operation.

  In the invention according to claim 2, in the invention according to claim 1, the time when the previous heating operation was performed and the time from the end of the previous heating operation until the start of the next heating operation are measured. And storing means. Based on the time of the previous heating operation and the time from the end of the previous heating operation to the start of the next heating operation, the temperature measured by the internal temperature measuring means at the start of the heating operation In response to this, it is selected whether or not the time for starting operation is set automatically. When the setting is not performed automatically, the start-up operation is performed for a predetermined time.

  In the invention according to claim 1, when the temperature in the storage is high, it is possible to prevent the temperature in the storage from rising excessively by shortening the start-up operation time, It is possible to prevent the user from being overheated or wasting energy consumption. If the temperature in the storage is low, the temperature in the storage can be sufficiently increased by extending the start-up operation time. In the state where the temperature has not risen, the operation is not shifted to the steady operation, and the temperature in the storage is sufficiently increased in a short time by the start-up operation, so that the user does not get cold.

  In the invention which concerns on Claim 2, depending on the time which performed the said last heating operation, and the time from the time of finishing the last heating operation to the time of starting the next heating operation, residual heat remains in the storage. In some cases, it is not necessary to perform start-up operation. In such cases, unnecessary start-up operation is eliminated, and the user is too hot or cold, and energy consumption is wasted. The situation can be prevented from occurring.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  The present invention is a method for controlling the temperature of a digging iron, and the digging iron A is recessed in a table 1 and a floor surface F below the table 1, as shown in FIG. The storage 2 in which the body is accommodated, the heating means 3 for heating the inside of the storage 2 (hereinafter referred to as the inside of the storage), and the control unit for controlling the heating means 3 are provided. In the present embodiment, a furnace box 20 that opens upward in which the inside becomes the storage 2 is provided on the floor, and surface heaters 3 a and 3 b as heating means 3 are provided on the lower surface of the table 1 and the inner and bottom surfaces of the furnace box 20. 3 c is provided, and a control unit is provided in the furnace box 20. As the heating means 3, a heating wire heater or a PTC heater is preferably used.

  As the operation unit for the heating device, a main power supply operation unit for turning on / off the main power supply, an on operation unit for performing an on operation for starting the heating operation, and a cut operation for performing a turning operation for ending the heating operation Are provided. The operation unit may be either one that transmits an operation signal wirelessly or one that transmits an operation signal by wire.

  As a basic operation of the heating apparatus, when the user turns on the main power supply and performs an input operation to start the heating operation, the start-up operation is performed as a general rule after the start. In the start-up operation, the heating unit 3 is operated with a larger output than the steady operation described later, and in this embodiment, the heating unit 3 is operated with the maximum output. And after predetermined time progress, start-up operation is complete | finished and it transfers to steady operation. In the steady operation, the heating means 3 is energized and controlled in accordance with the temperature in the storage in order to keep the temperature in the storage in a certain range. The storage 2 is provided with an internal temperature measuring means including a thermistor for measuring the internal temperature, and the measured temperature is monitored by the control unit. A control part controls the output of the heating means 3 by energization control, and current control, duty control, etc. are performed as energization control. In the steady operation, when the surroundings are cold and a large output is required, the heating means 3 may be operated at the maximum output.

  In the present invention, the internal temperature is measured by the internal temperature measuring means, or is estimated from the heating operation history, and the start-up operation is performed in principle and then the operation is shifted to the steady operation, or the start-up operation is performed. It is determined whether to perform steady operation without performing it.

  The heating device includes time measuring means and storage means. In this embodiment, the storage means is constituted by a semiconductor memory or the like. The storage means can store and delete the operation stop duration time t0, the heating operation duration time t1, and the previous heating operation duration time t2, as well as the internal temperature non-reference time Ts, the startup operation time Ta, and the startup time. The operation non-execution time Tc is stored in advance, and new storage and deletion are not performed. The operation stop continuation time t0, heating operation continuation time t1, and previous heating operation continuation time t2 are erased when the main power is turned off, but the internal temperature non-reference time Ts, start-up operation time Ta, and start-up The operation non-execution time Tc is not erased even when the main power is turned off.

  The time measuring means starts measuring time by turning on or turning off, measures the time until the time measurement is finished by turning off or turning on, and the measured time is the operation stop duration t0 or the heating operation continuation. It is memorized in the storage means one by one or periodically as the time t1 or the previous heating operation continuation time t2.

  First, a case where a heating operation has been performed in the past and a new heating operation is performed will be described based on the flowchart shown in FIG. (S *) in FIG. 1 and the description indicates the * step.

  The main power supply is continuously ON from the previous heating operation to the new heating operation.

  Measurement of time (heating operation continuation time t1) is started when turning-on operation (S2) is performed when measurement of time (heating operation continuation time t1) is started when turning-on operation (S1) is performed during the previous heating operation. When the heating operation continuation time t1 (that is, the time from the on operation (S1) to the turn-off operation (S2)) is stored as the previous heating operation continuation time t2 and the turn-off operation (S2) is performed. Measurement of the time from the start (operation stop duration t0) is started. Then, when the current heating operation input operation (S3) is performed, the measurement of the time (operation stop duration t0) is completed and stored, and the current heating operation input operation (S3) is performed. The measurement of (heating operation continuation time t1) is started and stored in the storage means one by one or periodically, and the previous heating operation continuation time t2 is maintained as it is. The heating operation continuation time t1 may be read directly from the time measuring means without being stored in the storage means.

  In (S4), a comparison determination is made between the operation stop duration time t0 and the internal temperature non-reference time Ts. When the operation stop continuation time t0 is equal to or longer than the internal temperature non-reference time Ts (in the case of No in the figure), it is assumed that the internal temperature is cold and the process proceeds to (S5), and the internal temperature measuring means The start-up operation time Ta is set with reference to the temperature in the cabinet measured by.

  The startup operation time Ta is set according to the internal temperature measured by the internal temperature measuring means. In this embodiment, the startup operation time Ta is Ta = Ta1 when the internal temperature is less than 10 ° C., Ta = Ta2 when the temperature is 10 ° C. or more and less than 20 ° C. = Ta3, Ta = Ta4 = 0 at 30 ° C. or higher, and Ta1> Ta2> Ta3> Ta4 = 0. Note that the correlation between the start-up operation time Ta and the temperature in the storage does not have to be as described above, and the start-up operation time Ta is set for every 5 ° C. in the storage, or the start-up operation time Ta May be calculated and set as a function of the internal temperature, and is not particularly limited. After the startup operation time Ta is set, the process proceeds to (S7).

  In addition, in (S4), when the operation stop duration time t0 is less than the internal temperature non-reference time Ts (in the case of Yes in the figure), the temperature in the internal chamber cools down after the previous heating operation is stopped. It is assumed that the time has not elapsed and the interior is not in a cold state, and the process proceeds to (S6). In (S6), a predetermined value is set as the start-up operation time Ta without referring to the temperature in the cabinet. In the present embodiment, the start-up operation time Ta set in (S6) is Ta2 set in (S5) when the internal temperature is 10 ° C. or higher and lower than 20 ° C. After the startup operation time Ta is set, the process proceeds to (S7).

  In (S7), a comparison determination between the start-up operation time Ta set in (S5) or (S6) and the previous heating operation continuation time t2 is performed. If the previous heating operation duration t2 is less than the startup operation time Ta (in the case of Yes in the figure), it is assumed that the startup operation has not been completed in the previous heating operation and the interior is cold. Then, the process proceeds to (S9) for the start-up operation. If the previous heating operation duration t2 is equal to or longer than the startup operation time Ta (in the case of No in the figure), it is assumed that the startup operation has been completed in the previous heating operation, and the next determination is performed. Therefore, the process proceeds to (S8).

  In (S8), a comparison determination is made between the operation stop duration time t0 and the startup operation non-execution time Tc. When the operation stop duration t0 is equal to or longer than the startup operation non-execution time Tc (in the case of Yes in the figure), the temperature inside the cabinet does not rise rapidly to the temperature during steady operation unless the startup operation is performed. And proceed to (S9) to perform the start-up operation. In addition, when the operation stop duration t0 is less than the startup operation non-execution time Tc (in the case of No in the figure), the temperature in the cabinet is promptly reached to the temperature during steady operation without performing the startup operation. The start-up operation is skipped and the routine proceeds to steady operation (S12).

  In (S9), it is determined whether or not the heating operation duration t1 is less than the startup operation time Ta set in (S5) or (S6), and the heating operation duration t1 is less than the startup operation time Ta ( In the case of “Yes” in the figure, the operation proceeds to (S10) to perform the start-up operation, and when the heating operation continuation time t1 is longer than the start-up operation time Ta (in the case of No in the figure), the start-up operation (S11), and the routine proceeds to steady operation (S12).

  In the start-up operation performed in (S10), in this embodiment, the surface heaters 3a, 3b, and 3c provided on the lower surface of the table 1, the inner side surface and the bottom surface in the cabinet generate heat at the maximum output. And it updates by substituting new heating operation continuation time t1 for heating operation continuation time t1, returns to the determination of (S9) again, and until heating operation continuation time t1 reaches start-up operation time Ta (S10). Start-up operation continues.

  When the steady operation is started in (S12), it is determined in the next (S13) whether or not the heating operation duration t1 is less than a predetermined time (6 hours in the present embodiment), and the heating operation duration t1 is the predetermined time. If it is less (in the case of Yes in the figure), the steady operation (S14) is performed, and the new heating operation continuation time t1 is substituted into the heating operation continuation time t1, and the process returns to the determination of (S13) again. The steady operation is continued until the heating operation continuation time t1 reaches a predetermined time.

  When the heating operation continuation time t1 is equal to or longer than the predetermined time in (S13) (in the case of No in the figure), the heating operation is ended (S15), and from the end to the next heating operation on-operation (S3). Is started, and the current heating operation continuation time t1 is stored as the previous heating operation continuation time t2. Then, when the next heating operation input operation (S3) is performed, the steps after (S3) are executed again.

  Moreover, when the turning-off operation is performed at an arbitrary time of the heating operation, the process proceeds to (S15) and ends the heating operation at that time.

  In (S5), it is determined whether or not the measured internal temperature falls within a range of a predetermined temperature (for example, 30 ° C. or more), and if so, the routine operation is immediately shifted to (S12). May be.

  Next, based on the flowchart shown in FIG.1 and FIG.2, the case where heating operation is performed only after the main power supply is turned on will be described.

  In FIG. 2, the main power is turned on (S21) from the non-energized state (S20) where the main power is off. In this state (S22), the controller is energized, but the heating operation is not performed, and the operation stop duration t0, the heating operation duration t1, and the previous heating operation duration t2 are not measured.

  Next, by performing an input operation (S23), heating operation is started, and measurement of time (heating operation continuation time t1) is started from the time of this input operation (S23). The heating operation continuation time t2 is not measured and stored. Thereafter, the process proceeds to (S4) in FIG. 1, and the following determination is performed in (S4) and (S7).

In (S4), it is determined that the operation stop duration time t0 is equal to or longer than the internal temperature non-reference time Ts, and the process proceeds to (S5), where the startup operation time Ta is set according to the internal temperature. In (S7), assuming that the previous heating operation continuation time t2 is less than the startup operation time Ta, the process proceeds to (S9) as in the case where it is estimated that the startup operation has not been completed in the previous heating operation. Start up with.
[Example 1]
In Example 1, as shown in Table 1 below, in the A mode, the startup operation time Ta is set to a time Ta1 = 15 minutes when the internal temperature is less than 10 ° C., a time Ta2 = 10 ° C. or more and less than 20 ° C. 10 minutes, time Ta3 = 5 minutes at 20 ° C. or more and less than 30 ° C., time Ta4 = 0 minutes at 30 ° C. or more, and time for turning on the heating means 3 during steady operation 6 As the operation mode in which the heating means 3 is OFF for 4 minutes in 10 minutes and the B mode, the startup operation time Ta is Ta1 = 35 minutes, Ta2 = 30 minutes, Ta3 = 25 minutes, Ta4 = 0 minutes, and during normal operation, the operation mode in which the heating means 3 is turned on for 7 minutes in 10 minutes and the heating means 3 is turned off for 3 minutes in 10 minutes can be selected. It has become.

  In both the A mode and the B mode, the internal temperature non-reference time Ts is set to 30 minutes, and the startup operation time Ta is set to 15 minutes.

まず、庫内温度が１５℃の時に、Ａモードにて、主電源をＯＮにして初めての入操作を行い、その７分後に切操作を行った。すなわち、無通電状態（Ｓ２０）から主電源をＯＮにし（Ｓ２１）て暖房運転が行われていない状態（Ｓ２２）から入操作（Ｓ２３）を行い、（Ｓ４）から（Ｓ５）へと進み、（Ｓ５）では、庫内温度１５℃が１０℃以上２０℃未満の場合に該当するため、立上げ運転時間Ｔａが１０分に設定され、（Ｓ７）から（Ｓ９）へと進み、立上げ運転が１０分実行される予定であったが、７分後に切操作が行われて（Ｓ１５）にて暖房運転が終了した。

First, when the internal temperature was 15 ° C., in the A mode, the main power supply was turned on and the first turning-on operation was performed, and after 7 minutes, the turning operation was performed. That is, the main power is turned on from the non-energized state (S20) (S21), the on operation (S23) is performed from the state (S22) where the heating operation is not performed, and the process proceeds from (S4) to (S5). S5) corresponds to the case where the internal temperature 15 ° C. is 10 ° C. or higher and lower than 20 ° C., so that the start-up operation time Ta is set to 10 minutes, the process proceeds from (S7) to (S9), and the start-up operation is performed. Although it was scheduled to be executed for 10 minutes, a cutting operation was performed after 7 minutes (S15), and the heating operation was completed.

  Then, measurement of the operation stop continuation time t0 from the end to the next heating operation input operation was started, and the current heating operation continuation time t1 = 7 minutes was stored as the previous heating operation continuation time t2.

  Five minutes after the end of the heating operation, in the B mode, the heating operation on / off operation (S3) is performed, and the operation is stopped for 5 minutes from the previous turn-off operation to the current heating operation on / off operation (S3). The time is stored as the duration t0, and the time measurement is started from the time of the current heating operation input operation (S3), and this is stored as the heating operation duration t1.

  In (S4), since the operation stop duration t0 (5 minutes) is less than the internal temperature non-reference time Ts (30 minutes) (Yes in the figure), proceed to (S6) and refer to the internal temperature. First, the startup operation time Ta is set to 30 minutes when the internal temperature is 10 ° C. or higher and lower than 20 ° C.

  In (S7), since the previous heating operation duration t2 (7 minutes) is less than the startup operation time Ta (30 minutes) (Yes in the figure), the startup operation has not been completed in the previous heating operation. Presuming that the interior is cold, proceed to (S9).

In (S9), the start-up operation (S10) is continued until the heating operation continuation time t1 reaches the start-up operation time Ta (30 minutes), and the heating operation continuation time t1 reaches the start-up operation time Ta (30 minutes). Then, the start-up operation is terminated (S11), and the steady operation is started (S12).
[Example 2]
In the second embodiment, the A mode and the B mode can be selected as in the first embodiment, and the internal temperature non-reference time Ts is set to 30 minutes and the startup operation time Ta is set to 15 minutes.

  First, when the internal temperature was 22 ° C., in the B mode, the main power was turned on and the first turning-on operation was performed, and after 35 minutes, the turning operation was performed. That is, the main power is turned on from the non-energized state (S20) (S21), the on operation (S23) is performed from the state (S22) where the heating operation is not performed, and the process proceeds from (S4) to (S5). In S5), this corresponds to the case in which the internal temperature 22 ° C. is 20 ° C. or higher and lower than 30 ° C., the start-up operation time Ta is set to 25 minutes, and the process proceeds from (S7) to (S9).

  In (S9), the startup operation (S10) is continued until the heating operation continuation time t1 reaches the startup operation time Ta (25 minutes), and the heating operation continuation time t1 reaches the startup operation time Ta (25 minutes). The start-up operation is terminated (S11), the steady operation is started (S12), and after 10 minutes (35 minutes after the on-operation), the turning operation is performed (S15), and the heating operation is terminated. did.

  Then, measurement of the operation stop continuation time t0 from the end to the next heating operation input operation was started, and the current heating operation continuation time t1 = 35 minutes was stored as the previous heating operation continuation time t2.

  40 minutes after the end of the heating operation, in the A mode, the heating operation on / off operation (S3) is performed, and the operation is stopped for a measurement time of 40 minutes from the previous turn-off operation to the current heating operation on / off operation (S3). The time is stored as the duration t0, and the time measurement is started from the time of the current heating operation input operation (S3), and this is stored as the heating operation duration t1.

  In (S4), since the operation stop duration t0 (40 minutes) is equal to or longer than the internal temperature non-reference time Ts (30 minutes) (No in the figure), the process proceeds to (S5) and refers to the internal temperature. The start-up operation time Ta is set. Here, since the initial internal temperature is 22 ° C., the startup operation time Ta is 5 minutes when the internal temperature is 20 ° C. or higher and lower than 30 ° C., or 0 minutes when the internal temperature is 30 ° C. or higher.

  In (S7), since the previous heating operation continuation time t2 (35 minutes) is longer than the startup operation time Ta (5 minutes or 0 minutes) (No in the figure), the startup operation is completed in the previous heating operation. It is estimated that the process has been performed, and the process proceeds to (S8).

  In (S8), since the operation stop continuation time t0 (40 minutes) is longer than the startup operation non-execution time Tc (15 minutes) (Yes in the figure), the temperature in the cabinet is steady unless the startup operation is performed. Presuming that the temperature does not rise rapidly to the temperature during operation, the process proceeds to (S9).

  In (S9), the start-up operation (S10) is continued until the heating operation continuation time t1 reaches the start-up operation time Ta (5 minutes), and the heating operation continuation time t1 reaches the start-up operation time Ta (5 minutes). Then, the start-up operation is terminated (S11), and the steady operation is started (S12). If the internal temperature is 30 ° C. or higher and the start-up operation time Ta is set to 0 minutes in (S5), the process immediately proceeds from (S9) to (S11), and the start-up operation is not performed. .

  As mentioned above, although two Example was described, in this invention, when the temperature in the storage 2 is high, it prevents that the temperature in the storage 2 rises too much by shortening start-up operation time. It is possible to prevent the user from being overheated or wasting energy consumption. Further, when the temperature in the storage 2 is low, the startup operation time is lengthened, so that the startup does not proceed to the steady operation in a state where the temperature in the storage 2 is not sufficiently increased. Due to the operation, the temperature in the container 2 rises sufficiently in a short time and does not become cold for the user.

  Further, when the operation stop duration t0 is short, it is assumed that the inside temperature is high and the start-up operation time Ta is set short, and the previous heating operation duration t2 is longer than the start-up operation time Ta. Further, if the operation stop duration t0 is less than the startup operation non-execution time Tc, it is considered unnecessary to perform the startup operation, so unnecessary startup operation is eliminated and the user is too hot. It is possible to prevent the occurrence of such a situation that the energy consumption is wasted or cold.

  In addition, although this embodiment demonstrated as the digging goat A, it may be a normal kotatsu, and the container 2 in this case is not recessed in the floor surface, and the table 1 and the floor surface It becomes a space between.

It is a flowchart of one Embodiment of this invention. It is a flowchart in the case of turning on a main power supply in the same as the above. It is sectional drawing of a digging iron.

Claims (2)

  Measures the temperature in the storage room, a storage room that is recessed in the floor below the table, and stores part or all of the user's body, heating means for heating the storage room And a controller that controls the heating means, and performs a start-up operation in which the output of the heating means is large at the start of the heating operation, and the output of the heating means from the start-up operation after the start-up operation Is a temperature control method of a digging bar that performs a steady operation with a small size, and is characterized in that the time for the start-up operation is automatically set according to the temperature measured by the internal temperature measuring means at the start of the heating operation How to control the temperature of the digging bar.   Means for measuring and storing the time of the previous heating operation and the time from the end of the previous heating operation to the start of the next heating operation, and the time of the previous heating operation and the previous time Based on the time from the end of the heating operation to the start of the next heating operation, the time for the start-up operation is automatically set according to the temperature measured by the internal temperature measuring means at the start of the heating operation. The temperature control method according to claim 1, wherein whether or not to set is selected, and when the setting is not performed automatically, the start-up operation is performed for a predetermined time set in advance.

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