TWI721079B - Heating conditioner - Google Patents

Abstract

[Question] Provide a heating conditioner that can suppress the temperature fluctuation range detected from the conditioning container to a small range when the heating amount of the conditioning container of the heating mechanism is automatically adjusted. [Solution] The heating mechanism that heats the conditioning container can adjust the heating capacity according to the heating capacity levels of the heating capacity levels in multiple stages. The heating control mechanism that automatically changes the heating capacity is to respond to the decrease in the temperature difference between the detected temperature and the target temperature to reduce the heating level by a predetermined number of stages when the detected temperature rises. When the detected temperature drops, the detected temperature and the target temperature are responded to The increase in the temperature difference causes the heating level to increase by a predetermined number of stages.

Description

Heating conditioner

The present invention relates to a heating conditioner having a function of automatically adjusting the heating amount of a conditioning container of a heating mechanism in response to the temperature of the conditioning container.

Regarding this type of heating conditioner, for example, a gas stove with a furnace burner as a heating mechanism, an electromagnetic conditioner with an induction heating (IH) part as a heating mechanism, or a nickel-chromium wire heater as Electric furnace of heating mechanism, etc.

Moreover, for example, there is known a gas stove having a pot bottom temperature sensor (temperature detection mechanism) that detects the temperature of the bottom of a conditioning container such as a pot heated by a furnace burner (heating mechanism), In response to the detection temperature of the pot bottom temperature sensor, the fire power (heating capacity) of the furnace burner is switched and adjusted in a two-stage type of low fire and strong fire, so as to maintain the heating temperature of the conditioning container within a predetermined temperature range (for example, , Refer to Patent Document 1). Advanced technical literature

Patent Literature Patent Literature 1: Japanese Patent Application Laid-Open No. 6-123429

SUMMARY OF THE INVENTION The problem to be solved by the invention. However, even if the heating amount is adjusted in a two-step manner, it is difficult to maintain the temperature of the conditioning container (the detection temperature of the pot bottom temperature sensor) that contains the heated object at a predetermined value. The temperature range has the problem of large temperature fluctuation range of the conditioning container relative to the target temperature.

In view of the above, the object of the present invention is to provide a heating conditioner that can suppress the temperature fluctuation range detected from the conditioning container to a small range when the heating amount of the conditioning container of the heating mechanism is automatically adjusted. Means to solve the problem

In order to achieve the stated purpose, the present invention has a heating conditioner with: a heating mechanism, which heats the conditioning container containing the object to be conditioned; a temperature detection mechanism, which detects the temperature of the aforementioned conditioning container; a heating control mechanism, when the temperature detection mechanism When the detected temperature is lower than the preset target temperature, the heating capacity of the heating mechanism is increased. When the detected temperature is greater than the target temperature, the heating capacity of the heating mechanism is reduced; characterized in that: the heating mechanism can follow The heating volume range from the minimum heating volume to the maximum heating volume is divided into a plurality of stages of heating volume levels to adjust the heating volume; the aforementioned heating control mechanism is when the detection temperature of the aforementioned temperature detecting mechanism rises, in the total heating volume level The predetermined number of stages range, in response to the decrease in the temperature difference between the aforementioned detection temperature and the aforementioned target temperature, the heating level becomes smaller. The predetermined number of stages; when the detection temperature of the aforementioned temperature detection mechanism drops, the predetermined number of stages in the full heating level The range of the number of stages is a predetermined number of stages in response to the increase in the temperature difference between the aforementioned detection temperature and the aforementioned target temperature.

When the heating mechanism starts to heat the conditioning container containing the conditioned object, the heating control mechanism automatically adjusts the heating amount of the heating mechanism so that the detected temperature of the temperature detection mechanism becomes the target temperature. In the initial stage when the heating mechanism starts heating, since the detected temperature of the temperature detection mechanism is lower than the target temperature, the heating control mechanism controls the heating mechanism to increase the heating level. During this period, the heating control mechanism calculates the difference between the detected temperature and the target temperature in response to changes in the detected temperature.

Then, with regard to the first aspect of the present invention, the heating control mechanism is a range of the predetermined number of stages in the total heating level when the detection temperature of the temperature detection mechanism rises, corresponding to the temperature between the detection temperature and the target temperature The reduction of the difference causes the heating level to decrease. The predetermined number of stages (1 stage 1 stage becomes smaller). When the detection temperature of the aforementioned temperature detection mechanism drops, the predetermined range of the number of stages in the total heating level corresponds to the aforementioned The increase in the temperature difference between the detected temperature and the aforementioned target temperature increases the heating level by a predetermined number of stages (1 stage 1 stage becomes larger).

The first aspect will be described in detail. Because the temperature rise of the conditioning container makes the detected temperature approach the target temperature, the difference between the detected temperature and the target temperature will be smaller. Along with this, the heating control mechanism reduces the heating amount level 1 step by step in response to the decrease in the temperature difference between the detected temperature and the target temperature.

Specifically, for example, when the predetermined number of stages is set to the maximum heating level "6" and the minimum heating level "1", the heating control mechanism is when the difference between the detected temperature and the target temperature becomes At 6°C, the heating mechanism is instructed to perform heating at heating level "6". After that, the heating control mechanism uses the heating level "5" when the difference between the detected temperature and the target temperature becomes 5°C, and the heating level "4" when the difference between the detected temperature and the target temperature becomes 4°C. Similarly, every time the difference between the detected temperature and the target temperature decreases by 1°C, the heating level decreases by one step.

According to this, when the detection temperature is getting closer to the target temperature due to the temperature rise of the conditioning container, the heating level will gradually decrease. Therefore, the temperature rise of the conditioning container to the target temperature can be slowed down, and excessive temperature rise can be suppressed ( That is, the temperature of the conditioning container rises after the detected temperature becomes equal to the target temperature). Moreover, since the heating control mechanism corresponds to the number of degrees of the difference between the detected temperature and the target temperature and the number of stages of the heating level, the heating level is set (for example, the heating level is the same number as the degree of the temperature difference). Make the control simplistic.

After the detected temperature exceeds the target temperature, when the detected temperature changes from rising to falling and the detected temperature is lower than the target temperature, the heating control mechanism automatically adjusts the heating amount of the heating mechanism to prevent excessive decrease in the detected temperature. During this period, the heating control mechanism calculates the difference between the detected temperature and the target temperature in response to changes in the detected temperature. Then, because the temperature of the conditioning container decreases and the detected temperature is far away from the target temperature, the difference between the detected temperature and the target temperature will become larger, so the heating control mechanism responds to the increase in the temperature difference between the detected temperature and the target temperature to set the heating level 1 stage 1 Become bigger in stages.

Specifically, for example, when the predetermined number of stages is set to the maximum heating level "6" and the minimum heating level "1", the heating control mechanism is when the difference between the detected temperature and the target temperature is At 2°C, the heating mechanism is instructed to perform heating at heating level "2". After that, the heating control mechanism uses the heating level "3" when the difference between the detected temperature and the target temperature becomes 3°C, and uses the heating level "4" when the difference between the detected temperature and the target temperature becomes 4°C. Similarly, every time the difference between the detected temperature and the target temperature increases by 1°C, the heating level increases by one step.

According to this, when the detection temperature is getting farther and farther away from the target temperature due to the decrease in the temperature of the conditioning container, the heating level will become larger. Therefore, the decrease in the temperature of the conditioning container is quickly suppressed, and the temperature of the conditioning container relative to the target temperature The temperature fluctuation range is small. Then, since the heating control mechanism at this time also corresponds to the number of degrees of the difference between the detected temperature and the target temperature and the number of stages of the heating level, the heating level is set (for example, the heating level is the same number as the degree of the temperature difference) , So the control is extremely simple.

Incidentally, the target temperature of the first aspect also includes a temperature range formed by the upper limit temperature and the lower limit temperature.

Regarding the second aspect of the present invention, the heating control mechanism is a predetermined range of the number of stages in the total heating level when the detection temperature of the temperature detection mechanism rises, corresponding to the temperature difference between the detection temperature and the target temperature Decrease and make the heating level smaller by a predetermined number of stages (decrease a plurality of stages). When the detection temperature of the aforementioned temperature detection mechanism drops, the range of the predetermined number of stages in the total heating level corresponds to the aforementioned detection temperature and the aforementioned The increase in the temperature difference of the target temperature causes the heating level to be larger by the predetermined number of stages (larger multiple stages).

The second aspect will be described in detail. Because the temperature rise of the conditioning container makes the detected temperature approach the target temperature, the difference between the detected temperature and the target temperature will become smaller. Along with this, the heating control mechanism reduces the heating level by several stages in response to the decrease in the temperature difference between the detected temperature and the target temperature every time a predetermined temperature difference is reached.

Specifically, for example, when the heating level "6" is the maximum and the heating level "1" is the minimum, the heating control mechanism is to instruct the heating mechanism to perform when the difference between the detected temperature and the target temperature becomes 6°C. The heating level is "6", but afterwards, when the difference between the detected temperature and the target temperature becomes 5°C, the heating level "4" which is smaller than the heating level "5" is used. Furthermore, although the heating amount level "4" is maintained when the difference between the detected temperature and the target temperature becomes 4°C, when the difference between the detected temperature and the target temperature becomes 3°C, the heating amount is smaller than the heating amount level "3". Level "2".

In this way, when the difference between the detection temperature and the target temperature becomes 5°C and when it becomes 3°C, the heating level is reduced in multiple stages. When the temperature of the conditioning container rises, the detection temperature is getting closer and closer to the target temperature, and the heating level is It will become smaller earlier. Therefore, the temperature rise of the conditioning container to the target temperature can be slowed down, and excessive temperature rise can be suppressed (that is, the temperature rise of the conditioning container after the detected temperature becomes equal to the target temperature).

After the detected temperature exceeds the target temperature, when the detected temperature changes from rising to falling and the detected temperature is lower than the target temperature, the heating control mechanism automatically adjusts the heating amount of the heating mechanism to prevent excessive decrease in the detected temperature. During this period, the heating control mechanism calculates the difference between the detected temperature and the target temperature in response to changes in the detected temperature. Then, because the temperature of the conditioning container decreases and the detected temperature is far away from the target temperature, the difference between the detected temperature and the target temperature will increase. Therefore, the heating control mechanism is to respond to the increase in the temperature difference between the detected temperature and the target temperature whenever the predetermined temperature difference is reached. The heating level becomes larger in several stages.

Specifically, for example, when the heating level "6" is the maximum and the heating level "1" is the minimum, the heating control mechanism is to instruct the heating mechanism to perform when the difference between the detected temperature and the target temperature is 2°C. The heating level is "2", but afterwards, when the difference between the detected temperature and the target temperature becomes 3°C, the heating level "4" which is larger than the heating level "3" is used. Furthermore, although the heating amount level "4" is maintained when the difference between the detected temperature and the target temperature becomes 4°C, when the difference between the detected temperature and the target temperature becomes 5°C, the heating amount is greater than the heating amount level "5". Level "6".

In this way, when the difference between the detection temperature and the target temperature becomes 3°C and when it becomes 5°C, the heating level is increased in multiple stages. When the temperature of the conditioning container decreases and the detection temperature is getting farther and farther away from the target temperature, the heating level is It becomes larger earlier, therefore, the temperature drop of the conditioning container is quickly suppressed, and the temperature fluctuation range of the conditioning container relative to the target temperature can be made small.

Incidentally, at this time, regarding the predetermined number of stages, the specific heating level is the range from "2" to "4", and the range from "4" to "6". In addition, the target temperature of the present invention also includes a temperature range formed by the upper limit temperature and the lower limit temperature.

In addition, the heating conditioner of the present invention has: an operating knob, which can be operated by the user to set the heating level; a plurality of position display parts, corresponding to the operating volume of the operating knob to display each heating level; light-emitting elements, It is set in each position display part to selectively emit light of multiple colors; the light-emitting element control mechanism makes the light-emitting element of the position display part that displays the heating level set by the user operation to emit light, when the heating control mechanism When the heating level is changed, the light-emitting element of the position indicator that displays the heating level set by the user is kept luminous, and the light-emitting element of the position indicator that displays the heating level changed by the heating control mechanism is used with the display. The light-emitting element of the position indicating section of the heating level set by the user emits light in different colors.

As mentioned above, the heating conditioner of the present invention uses the heating control mechanism to automatically adjust the heating amount to make the temperature of the conditioning container become the target temperature. On the other hand, the heating conditioner of the present invention can also set the heating level by the operation of the operating knob by the user. Therefore, when the heating of the conditioning container starts, the heating level set by the user using the operating knob is changed by the heating control mechanism. Therefore, because the conditioning container is heated with a heating amount different from the content manually set by the user, the user feels something wrong.

In this regard, by the aforementioned light-emitting element control mechanism, firstly, the light-emitting element of the position indicating portion displaying the heating level set by the user is maintained in a light-emitting state. After that, when the heating control mechanism changes the heating level, the light-emitting element control mechanism causes the light-emitting element of the position indicating section to display the heating level changed at this time with the light-emitting element of the position indicating section that displays the heating level set by the user Different colors to shine. In this way, the user can visually confirm the manually set heating level and the automatically changed heating level, which can alleviate the user's feeling of wrongness.

Mode for Carrying Out the Invention The mode for carrying out the present invention will be explained based on the drawings. The first embodiment uses the gas stove 1 shown in Fig. 1 as a heating conditioner. As shown in Figure 1, the gas stove 1 has: a stove burner 2 (heating mechanism); a controller 3 to control the stove burner 2; an operation panel 4 formed by a switch group (not shown). The user operates to give desired instructions and various settings to the controller 3.

A pot bottom temperature sensor 7 (temperature detection mechanism) is provided in the center of the furnace burner 2. The pot bottom temperature sensor 7 is when the pot 9 (conditioning container) is placed on the gas hob 8 and abuts against the bottom of the pot 9 to output a signal indicating the detected temperature of the bottom of the pot 9 heated by the furnace burner 2.

The furnace burner 2 performs an ignition operation, a heating power adjustment, and a flameout operation by an operation knob 10 that can perform a press-in operation and a rotation operation. That is, by pressing the operating knob 10, the furnace burner 2 is ignited or extinguished. In addition, the heating power (heating amount) level of the furnace burner 2 can be adjusted by rotating the operation knob 10 (adjusting the fuel gas supply flow rate to the furnace burner 2). Incidentally, in the furnace burner 2 of this embodiment, its firepower level (heating level) can be adjusted in 9 stages (minimum firepower level "1" to maximum firepower level "9").

The fuel gas is supplied to the furnace burner 2 through the gas supply pipe 11. The gas supply pipe 11 is provided with a source solenoid valve 12 to open and close the gas supply pipe 11; and a flow regulating valve 13 to adjust the flow rate of the fuel gas circulating in the gas supply pipe 11.

In addition, near the furnace burner 2 are provided: an ignition electrode 14 for igniting the furnace burner 2; a thermocouple 15 for detecting the combustion state of the furnace burner 2.

The controller 3 executes a control program of the gas stove 1 held by a memory (not shown), and controls the operation of the gas stove 1.

As shown in FIG. 1, the controller 3 has the functions of a heating power control unit 16 (heating control mechanism) and a position display control unit 17 (light emitting element control mechanism). Furthermore, the thermal power control unit 16 has the functions of a temperature difference calculation unit 18 (temperature difference calculation means), a temperature tendency measurement unit 19 (temperature tendency measurement means), and a level conversion unit 20 (level conversion means).

The operating signal of the operating knob 10 of the furnace burner 2, the signal showing the detection temperature of the pot bottom temperature sensor 7, and the signal showing the inflammation detection of the thermocouple 15 are input to the controller 3.

The controller 3 outputs control signals corresponding to each function, thereby controlling the operation of the source solenoid valve 12, the flow regulating valve 13, and the ignition electrode 14 of the gas supply pipe 11.

The flow regulating valve 13 is an electric valve that uses a proportional valve or a flow switching valve and changes the gas flow of the gas supply pipe 11 by a valve body not shown in the figure driven by a stepping motor 21. The controller 3 changes the opening of the flow regulating valve 13 through the stepping motor 21 to switch the firepower level of the furnace burner 2.

The fire power control part 16 of the controller 3 performs the combustion operation of the furnace burner 2 based on the operating signal of the operating knob 10, and automatically adjusts the fire power level based on the temperature detected by the bottom temperature sensor 7 to prevent overheating.

Here, the operation of the controller 3 related to the gist of the present invention will be explained with reference to the flowchart. As shown in FIG. 2, when the user operates the operation knob 10, the heating power control unit 16 in step 1 ignites the furnace burner 2. At this time, the fire power control unit 16 adjusts the fire power to the fire power level "4" to ignite.

Next, when it is detected in step 2 that the detected temperature of the bottom temperature sensor 7 is 200°C or higher, proceed to step 3, and the temperature difference calculation unit 18 of the controller 3 calculates the preset target temperature and the bottom temperature sensor 7 The difference Tk (absolute value) of the detected temperature.

Next, in step 4, the temperature trend measuring unit 19 of the controller 3 determines whether the detected temperature of the bottom temperature sensor 7 is rising (including the level shift) (the current detected temperature-5 seconds ago, the detected temperature ≥ 0). If it is determined in step 4 that the detected temperature of the bottom temperature sensor 7 is rising (including the level shift), the controller 3 proceeds to step 5.

When proceeding to step 5 and Tk is 9° C. or higher, the controller 3 proceeds to step 6, sets the heating power control unit 16 to the heating power level "9", and returns to step 3.

If Tk is not 9°C or higher in step 5, and if Tk is 6°C or higher in step 7, proceed to step 8 to set the heating power control unit 16 to the heating power level "6". If Tk is not 6°C or higher in step 7, and if Tk is 5°C or higher in step 9, proceed to step 10 to set the heating power control unit 16 to the heating power level "5". If Tk is not 5°C or higher in step 9, and if Tk is 4°C or higher in step 11, proceed to step 12 to set the heating power control unit 16 to the heating power level "4". If Tk is not 4°C or higher in step 11, and if Tk is 3°C or higher in step 13, proceed to step 14 to set the heating power control unit 16 to the heating power level "3". If Tk is not 3°C or higher in step 13, and if Tk is 2°C or higher in step 15, proceed to step 16 to set the heating power control unit 16 to the heating power level "2". Then, in step 15 if Tk is not 2° C. or higher, proceed to step 17 to set the heating power control unit 16 to the heating power level "1", and return to step 3.

Incidentally, regarding the processing of step 8, step 10, step 12, step 14, and step 16, the level conversion unit 20 thus converts the value of Tk into a value for use in the firepower level.

In addition, in step 4, when it is not determined that the detected temperature of the bottom temperature sensor 7 is rising (including horizontal shift), the temperature tendency measuring unit 19 of the controller 3 regards it as the bottom temperature sensor 7 It is detected that the temperature is falling, and proceed to step 18. Then, in step 18, if Tk is 7°C or higher, proceed to step 19, and set the heating power control unit 16 to the heating power level "9". In step 18, if Tk is not 7°C or higher, proceed to step 7 .

As above, when the detection temperature of the bottom temperature sensor 7 rises, the controller 3 will reduce the difference between the detected temperature and the target temperature by 1 in the range of firepower level "6" ~ "1" (the range of the predetermined number of stages) ℃, the firepower level will be reduced by 1 step. When the temperature detected by the bottom temperature sensor 7 drops, the difference between the detected temperature and the aforementioned target temperature is within the range of firepower level "6" to "1" (the range of the predetermined number of steps) The firepower level increases by one step for every 1°C increase.

According to this, when the temperature of the conditioning container rises, as the detected temperature approaches the target temperature, the temperature rise of the conditioning container is slowed down, and excessive temperature rise can be suppressed. When the temperature of the conditioning container decreases, the detected temperature is farther away from the target The temperature suppresses the temperature drop of the conditioning container more, so the temperature fluctuation range of the conditioning container relative to the target temperature can be suppressed to a small extent.

Incidentally, although the first embodiment above is in the range of firepower level "6" to "1", when the difference between the detected temperature and the aforementioned target temperature increases by 1°C, the firepower level will increase by one step, but it can also be It is in the range of firepower level "9"~"1". When the difference between the detected temperature and the aforementioned target temperature increases by 1°C, the firepower level will increase by one stage. In this case, the range of the predetermined number of stages in the present invention will be the range of firepower level "9" to "1".

Next, the second embodiment of the present invention will be described. The same as the first embodiment, the second embodiment also uses the gas stove 1 shown in FIG. 1 as a heating conditioner, and part of the operation of the controller 3 is the same. Therefore, the description of the second embodiment will only describe the operation of the controller 3 which is different from the first embodiment.

The operation of the controller 3 in the second embodiment of the present invention is mainly different from that in the first embodiment after step 5 and after step 18.

That is, as shown in FIG. 3, when Tk is not 9°C or higher in step 5, and if Tk is 6°C or higher in step 7, proceed to step 8 to set the fire power control unit 16 to the fire power level. 6". In the case where Tk is not 6°C or higher in step 7, and Tk is 5°C or higher in step 9, proceed to step 10 to set the heating power control unit 16 to the heating power level "4". Here, by setting the firepower level to "4" which is lower than the firepower level "5", the firepower level is reduced earlier and the rise in the detection temperature can be slowed down.

If Tk is not 5°C or higher in step 9, and if Tk is 4°C or higher in step 11, proceed to step 12 to set the heating power control unit 16 to the heating power level "4". In step 11, when Tk is not 4°C or higher, in step 13 and Tk is 3°C or higher, proceed to step 14 to set the heating power control unit 16 to the heating power level "2". Here too, by setting the firepower level to "2" which is smaller than the firepower level "3", the firepower level is reduced earlier and the rise in the detection temperature can be slowed down.

If Tk is not 3°C in step 13, and if Tk is 2°C or higher in step 15, then proceed to step 16 to set the heating power control unit 16 to the heating power level "2". Then, in step 15 if Tk is not 2° C. or higher, proceed to step 17 to set the heating power control unit 16 to the heating power level "1", and return to step 3.

In addition, in step 4, when it is not determined that the detected temperature of the bottom temperature sensor 7 is rising (including horizontal shift), the temperature tendency measuring unit 19 of the controller 3 regards it as the bottom temperature sensor 7 It is detected that the temperature is falling, and proceed to step 18. Then, in step 18, when Tk is 7°C or higher, proceed to step 19, set the heating power control unit 16 to the heating power level "9", and return to step 3. In step 18, if Tk is not 7°C or higher, proceed to step 20. In step 20, when Tk is 6°C or higher, proceed to step 21, set the heating power control unit 16 to the heating power level "6", and return to step 3.

Incidentally, when the detected temperature of the pot bottom temperature sensor 7 drops, the difference Tk between the target temperature and the detected temperature of the pot bottom temperature sensor 7 will gradually increase. If following this to describe the subsequent operation, when Tk is 1°C, proceed to step 30 through step 28 to set the fire power control unit 16 to the fire power level "1". When Tk becomes 2°C, step 28 proceeds to step 29, and the fire power control unit 16 is set to the fire power level "2".

When Tk becomes 3°C, proceed to step 27 through step 26 to set the fire power control unit 16 to the fire power level "4". Here, by setting the firepower level to "4" which is greater than the firepower level "3", the firepower level can be increased earlier and the detection temperature can be slowed down.

When Tk becomes 4°C, proceed to step 25 through step 24 to set the fire power control unit 16 to the fire power level "4". When Tk becomes 5°C, proceed to step 23 through step 22 to set the fire power control unit 16 to the fire power level "6". Here, by setting the firepower level to "6" which is greater than the firepower level "5", the firepower level can be increased earlier to slow down the decrease in the detection temperature.

As above, when the temperature detected by the bottom temperature sensor 7 rises, the controller 3 changes with the difference between the detected temperature and the target temperature in the range of the firepower level "6" ~ "1" (the range of the predetermined number of stages) When the detection temperature of the bottom temperature sensor 7 decreases, the range of the heating power level "6" ~ "1" (predetermined range of the number of stages) will increase with the difference between the detected temperature and the aforementioned target temperature. The difference Tk becomes larger and the firepower level becomes larger. Moreover, when Tk is a predetermined value (both at 5°C and 3°C when it is rising and when it is falling), the fire power control unit 16 causes the fire power level to change in a plurality of stages.

According to this, when the temperature of the conditioning container rises, as the detected temperature approaches the target temperature, the temperature rise of the conditioning container is slowed down earlier, and excessive temperature rise can be suppressed. When the temperature of the conditioning container drops, the detected temperature becomes higher. The farther away from the target temperature, the earlier the temperature drop of the conditioning container will be slowed down. Therefore, the temperature fluctuation range of the conditioning container relative to the target temperature can be suppressed to a small extent.

In other words, according to the controller 3 of the above-mentioned first and second embodiments, when the detected temperature is near the target temperature, the firepower level is automatically switched, but the furnace burner 2 has a firepower that is different from the firepower level manually set by the user. The level of combustion control may cause users to feel confused and mistakenly think it is a malfunction.

Therefore, as shown in FIG. 4, a plurality of position indicating parts 10a, 10b, 10c, 10d, and 10e made of light-emitting elements are provided around the operation knob 10, and the position indicating parts 10a, 10b, 10c, The luminous form of 10d and 10e indicates the firepower level. Incidentally, the light-emitting element adopts a light-emitting element capable of selectively emitting light of two colors.

The position indication parts 10a, 10b, 10c, 10d, and 10e are set according to the predetermined rotation angle (operation amount) of the operation knob 10. As shown in FIG. 1, the position indication control part 17 of the controller 3 controls .

The position display control unit 17 uses five position display units 10a, 10b, 10c, 10d, and 10e to display 9 stages of firepower level "1" to firepower level "9". The light-emitting form of each position display unit 10a, 10b, 10c, 10d, and 10e is as shown in Fig. 5. When the firepower level "1", "3", "5", "7", "9" is displayed, it is The lighting status is flashing when the firepower level "2", "4", "6", "8" is displayed.

Furthermore, the position display control unit 17 keeps the light emitting element of the position display unit displaying the firepower level manually set by the user (including the firepower level set in advance) in a blue light state, so that the display is displayed by the firepower control unit 16 The light-emitting element of the position indicating part of the automatically changing firepower level glows in red.

According to this, the firepower level manually set by the user and the firepower level automatically changed by the firepower control unit 16 can be clearly distinguished, which can prevent the user from being confused and mistakenly thinking that it is a malfunction.

Incidentally, although it is shown in the first embodiment that when the detected temperature of the bottom temperature sensor 7 rises, the heating power level decreases by one step when the difference between the detected temperature and the target temperature decreases by 1°C. When the detection temperature of the device 7 drops, the firepower level increases by 1 step every time the difference between the detection temperature and the target temperature increases by 1°C. However, it is not limited to this. It can also be used when the detection temperature of the bottom temperature sensor 7 rises. The decrease in the temperature difference between the detected temperature and the target temperature makes the firepower level 1 step by step smaller. When the detected temperature of the bottom temperature sensor 7 drops, the heating capacity is increased in response to the increase in the temperature difference between the detected temperature and the target temperature. Level 1 becomes larger in stages.

In addition, although the second embodiment shows that when the detected temperature of the bottom temperature sensor 7 rises, when the difference between the detected temperature and the target temperature decreases by 1°C, the heating level changes in multiple stages. When the detected temperature of the bottom temperature sensor 7 drops, when the difference between the detected temperature and the target temperature increases by 1°C, the heating level becomes larger in multiple stages, but it is not limited to this. It can be that when the detected temperature of the bottom temperature sensor 7 rises, the heating level becomes smaller in multiple stages in response to the decrease in the temperature difference between the detected temperature and the target temperature. When the bottom temperature sensor 7 In the case of a decrease in the detection temperature, the heating level increases in multiple stages in response to the increase in the temperature difference between the detection temperature and the target temperature.

In addition, although the first and second embodiments are described for the gas stove 1, the present invention is not limited to the gas stove 1. For example, an electromagnetic conditioner or an electric stove may be used. In the case of an electromagnetic conditioner or an electric furnace, by switching to the above-mentioned control of the fire power of the furnace burner 2 and controlling the power supply to the induction heating part and the nickel-chromium wire heater, the same as the first one can be obtained. The second embodiment has the same effect.

1‧‧‧Gas stove (heating conditioner)2‧‧‧Stove burner (heating mechanism)3‧‧‧Controller4‧‧‧Operation panel7‧‧‧Bottom temperature sensor (temperature detection mechanism)8‧ ‧‧Gas stove rack 9‧‧‧Pot (conditioning container) 10‧‧‧Operating knobs 10a, 10b, 10c, 10d, 10e‧‧‧Position indicator 11‧‧‧Gas supply pipe 12‧‧‧Source solenoid valve 13 ‧‧‧Flow control valve 14‧‧‧Ignition electrode 15‧‧‧Thermoelectric pair 16‧‧‧Fire control unit (heating control mechanism) 17‧‧‧Position display control unit (light emitting element control mechanism) 18‧‧‧Temperature difference Calculation unit 19‧‧‧Temperature trend measurement unit 20‧‧‧Level conversion unit (level conversion mechanism) 21‧‧‧Stepping motor

Fig. 1 is a diagram schematically showing the structure of the important parts of the gas furnace according to the first and second embodiments of the present invention.

Figure 2... shows a flow chart of the operation of the controller in the first embodiment of the present invention.

Figure 3... shows a flow chart of the operation of the controller in the second embodiment of the present invention.

Figure 4... A diagram showing the operating knob.

Fig. 5... A diagram explaining the light-emitting form of the position display part of the operation knob.

1‧‧‧Gas stove (heating conditioner)

2‧‧‧ Furnace burner (heating mechanism)

3‧‧‧Controller

4‧‧‧Operation Panel

7‧‧‧Pot bottom temperature sensor (temperature detection mechanism)

8‧‧‧Gas stove

9‧‧‧Pot (conditioning container)

10‧‧‧Operation knob

10a, 10b, 10c, 10d, 10e‧‧‧Position indicator

11‧‧‧Gas supply pipe

12‧‧‧Source solenoid valve

13‧‧‧Flow control valve

14‧‧‧Ignition electrode

15‧‧‧Thermoelectric pair

16‧‧‧Fire control department (heating control mechanism)

17‧‧‧Position display control unit (light emitting element control mechanism)

18‧‧‧Temperature difference calculation unit

19‧‧‧Temperature Tendency Measurement Department

20‧‧‧Level Conversion Department (Level Conversion Organization)

21‧‧‧Stepping motor

Claims (4)

A heating conditioner, which has: a heating mechanism to heat the conditioning container containing the object to be conditioned; a temperature detection mechanism to detect the temperature of the aforementioned conditioning container; a heating control mechanism, when the detection temperature of the temperature detection mechanism is higher than the preset target When the temperature is still low, the heating amount of the heating mechanism increases, and when the detected temperature is greater than the target temperature, the heating amount of the heating mechanism decreases; the heating conditioner is characterized in that: the heating mechanism can change from the minimum heating amount to The heating volume range up to the maximum heating volume is divided into multiple heating volume levels to adjust the heating volume; the heating control mechanism is the predetermined number of stages in the total heating volume level when the detection temperature of the temperature detection mechanism rises The range is the predetermined number of stages in which the heating level becomes smaller due to the decrease in the temperature difference between the aforementioned detection temperature and the aforementioned target temperature; when the detection temperature of the aforementioned temperature detection mechanism drops, the predetermined range of the number of stages in the full heating level , In response to the increase in the temperature difference between the detected temperature and the target temperature, the heating level is increased by a predetermined number of stages. Such as the heating conditioner of claim 1, wherein the heating control mechanism is a predetermined range of the number of stages in the full heating level when the detection temperature of the temperature detection mechanism rises, in response to the temperature difference between the detection temperature and the target temperature The reduction of the heating capacity level 1 step by step becomes smaller; when the detection temperature of the aforementioned temperature detection mechanism drops, the predetermined number of steps in the total heating capacity level corresponds to the temperature difference between the aforementioned detection temperature and the aforementioned target temperature The increase makes the heating level 1 step by step larger. Such as the heating conditioner of claim 1, wherein the heating control mechanism is a predetermined range of the number of stages in the full heating level when the detection temperature of the temperature detection mechanism rises, in response to the temperature difference between the detection temperature and the target temperature The decrease in the heating capacity level decreases by multiple stages; when the detection temperature of the aforementioned temperature detection mechanism drops, the predetermined number of stages in the total heating capacity level corresponds to the increase in the temperature difference between the aforementioned detection temperature and the aforementioned target temperature The heating level becomes larger in multiple stages. For example, the heating conditioner of any one of claim items 1 to 3, which has: an operating knob, which can be operated by the user to set the heating level; a plurality of position indicating parts are displayed corresponding to the operating volume of the operating knob Each heating level; light-emitting elements are installed in each position indicating part to selectively emit light of multiple colors; the light-emitting element control mechanism makes the position indicating part of the position indicating the heating level set by the operation of the user to emit light The element emits light. When the heating control mechanism changes the heating level, the light-emitting element of the position display unit that displays the heating level set by the user remains illuminated, and the position display unit displays the heating level changed by the heating control mechanism. The light-emitting element of the light-emitting element emits light in a different color from the light-emitting element of the position indicating section that displays the heating level set by the user.

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