JPH0263039B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to an iron that detects and displays and notifies when the base has reached a set temperature using an appropriate temperature determining means, and also controls these display and notifying means. be. 2. Description of the Related Art Conventionally, most irons equipped with operating means for setting the temperature have displayed the set temperature using a lamp. Problems to be Solved by the Invention However, with the above-mentioned conventional method, when heat is removed during ironing and the base temperature drops temporarily, the lamp changes from being on to being off, or from being off to being on. Despite the temperature drop, the display changed, confusing the ironer and causing problems during actual work. The first invention solves these conventional problems and provides an iron that can reliably confirm the proper temperature display even if the base temperature temporarily drops. The second invention provides an iron that notifies the user when the base temperature reaches an appropriate temperature, but also prevents the notification from changing even if the base temperature temporarily decreases after the notification is made. be. A third invention relates to the first and second inventions, and provides an iron in which the appropriate temperature display and notification do not change even if the base temperature temporarily decreases. Means for Solving the Problems The iron of the first invention includes: a heating element that heats the base of the iron; an operating means that switches the set temperature of the base; and a temperature detection element that detects the temperature of the base. a temperature control means that operates based on the output of the operating means and the temperature detection element and controls energization of the heating element via the power control means; and an appropriate temperature that determines whether the base temperature of the iron has reached the set temperature of the operating means. a determining means, a display device that displays this when the base temperature of the iron reaches a set temperature, and a display state of the display device that maintains the display state of the display device when the appropriate temperature determining means determines that the base temperature of the iron has reached the set temperature. and latch means for releasing the holding of the display state by updating the set temperature by the operating means. The iron of the second invention includes a heating element that heats a base of the iron, an operating means that switches a set temperature of the base, a temperature sensing element that detects the temperature of the base, and a combination of the operating means and the temperature sensing element. a temperature control means that is operated by the output of the iron and controls energization to the heating element via the power control means; an appropriate temperature determination means that determines whether the base temperature of the iron has reached the set temperature of the operating means; An appropriate temperature notification means that notifies an appropriate temperature for a short time when the base temperature reaches the set temperature, and a state of the appropriate temperature notification means after the notification operation is maintained when the appropriate temperature determination means determines that the base temperature of the iron has reached the set temperature. It also has a latch means for releasing the holding of the appropriate temperature notification means by updating the set temperature by the operation means. An iron according to a third aspect of the invention includes a heating element that heats a base of the iron, an operating means that switches and operates a set temperature of the base, a temperature sensing element that detects the temperature of the base, and a combination of the operating means and the temperature sensing element. a temperature control means that is operated by the output of the iron and controls energization to the heating element via the power control means; an appropriate temperature determination means that determines whether the base temperature of the iron has reached the set temperature of the operating means; a display device that displays when the base temperature reaches a set temperature; a suitable temperature notification means that notifies the appropriate temperature for a short time; and a display state of the display device when the suitable temperature notification means determines that the base temperature of the iron has reached the set temperature. and a latch means for holding the state of the appropriate temperature notifying means after the notification operation and for releasing the holding of the display state and the appropriate temperature notifying means by updating the set temperature by the operating means. Operation With the above configuration, the iron of the first invention displays this on the display device when the base temperature reaches an appropriate temperature, latches it using the latching means, and maintains the latched state until the set temperature is updated by the next operation means. It is something. Further, in the iron of the second invention, when the base temperature reaches the appropriate temperature, the appropriate temperature notification means notifies the appropriate temperature for a short time, and the iron is latched by the latching means, and the latched state is maintained until the set temperature is updated by the next operating means. It is. Further, in the iron of the third invention, when the base temperature reaches the appropriate temperature, it is displayed on the display device, and the appropriate temperature is notified for a short time by the appropriate temperature notification means, and at the same time, these are latched by the latching means, and the set temperature is set by the next operation means. The latch state is maintained until the update. Embodiment An embodiment of the present invention will be described below with reference to the drawings. In Fig. 1, 1 is an operating means for switching the set temperature of the base of the iron, 2 is an appropriate temperature determining means for determining whether the base temperature of the iron has reached the set temperature, and 3 is detected by a temperature detection element to be described later. Temperature control means 4 compares the current temperature of the base and the set temperature set by the operating means 1 and outputs the result; 5 is a heating element that heats the base while the power supply is controlled by the power control means 4 of the iron; 6 is a temperature detection element that detects the temperature of the base; 7 is a latch means , 8 is an appropriate temperature notification means that detects whether the temperature of the iron base has reached the appropriate temperature from the output of the temperature detection element 6 and the output of the operating means 1, and notifies this for a short time if it has reached the appropriate temperature. 19A and 19B are set temperature display means and current temperature display means, respectively;
A display device to be described later is configured. The latch means 7 retains the display state of the current temperature display means 19B and the state after the notification operation of the suitable temperature notification means 8 when the appropriate temperature determination means 2 determines that the base temperature of the iron has reached the set temperature. , the display state and the holding of the appropriate temperature notification means 8 are canceled by updating the temperature setting by the operating means 1. In addition, this iron has both the appropriate temperature display and appropriate temperature alarm functions,
If the device has only one of the functions, the latch means 7 may be used to latch that function. Next, in Fig. 2, 9 is the iron body, 10
1 is a base of the iron; 11 is a control device constituting the appropriate temperature determining means 2, temperature control means 3, latch means 7, etc.; 12 is a select switch for selecting the temperature of the base, which constitutes the operating means 1; . Reference numeral 13 denotes a sounding body constituting the appropriate temperature notification means 8. In addition, in this embodiment, the sounding body 13 is used to notify the appropriate temperature.
However, it goes without saying that the same effect can be achieved by using a display element such as a light emitting element. Next, in FIG. 3, 14 is a microcomputer that constitutes the main part of the control device 11, including a CPU,
A one-chip microcomputer consisting of ROM, RAM, input/output ports, etc. constitutes the appropriate temperature notification means 2, temperature control means 3, latch means 7, etc. 15 is an A/D converter, which converts the signal of the temperature detection element 6 into 2
The signal is connected to be converted into a base code and input to the input port of the microcomputer 14. 16 is a transistor for driving the power control means 4; The base terminal of transistor 16 is connected to the output of microcomputer 14. Reference numeral 17 denotes an AC power source, and when the transistor 16 is driven, the power control means 4 becomes conductive, and power is supplied from the AC power source 17 to the heating element 5. 18 is a transistor whose base terminal is connected to the output port of the microcomputer 14 and whose collector terminal is connected to the sounding body 13, and when an audible frequency rectangular wave signal is applied from the microcomputer 14 to the base terminal of the transistor 18, Pronunciation body 1
3 is driven. Reference numeral 19 denotes a display device having a set temperature display means 2 and a current temperature display means 7 for displaying temperature by sharing a plurality of display elements; in this embodiment, four display elements are used.
Although four light emitting diodes 19a to 19d are used, it is of course possible to use four or fewer or four or more light emitting diodes, and display elements other than light emitting diodes may also be used.
The set temperature display is displayed by lighting or blinking one of the display elements corresponding to the set temperature, and the current temperature display is indicated by blinking or blinking the other display element corresponding to the base temperature. When the temperature of the base reaches the set temperature, only the set temperature is displayed instead of the current temperature display and the set temperature display. A select switch 12 is connected to one of the input ports of the microcomputer 14, and by pressing the select switch 12, the temperature settings of the microcomputer 14 are sequentially changed to display the above-mentioned display. . A DC power supply 20 is a power supply that is supplied to the entire control device 11. Next, the display function of the display device 19 will be explained. Light emitting diode 19 of display device 19 in FIG.
19b indicates the base temperature of the iron.
Display temperature setting to 160℃, similarly set 19c to 180℃
℃, 19d is set temperature display of 200℃. In this example, the set temperature is displayed by continuously lighting each light emitting diode. for example,
When the base of the iron is set at 200° C., only one light emitting diode 19d corresponding to this is in a continuous lighting state. Furthermore, the display device 19 also displays the current temperature of the iron base. That is, in this case, the base temperature of the light emitting diode 19a is
Lights up contrary to the set temperature display when the temperature is below 150℃. The temperature of the base of the light emitting diode 19b is 150
When the temperature is above ℃ and below 170℃, 19c is above 170℃
19d flashes when the temperature is below 190°C and 19d flashes when the temperature is above 190°C, and the current temperature can be determined by checking the position of the flashing light emitting diode. When the temperature of the base reaches the set temperature, only one light emitting diode that displays the set temperature changes from the two displays, the current temperature display and the set temperature display, to lighting. In this way, the set temperature is indicated by a lit light emitting diode, the current temperature of the base is indicated by a blinking light emitting diode, and when the set temperature is reached, only the light emitting diode corresponding to the set temperature is lit. . Next, a series of operations of the iron configured as described above will be explained using FIG. 4. When the power is turned on in step 21, the display device 1 is turned on in step 22.
9 displays the "off" setting. In step 23, it is checked whether the select switch 12 has been pressed. If the select switch 12 is pressed, the process moves to step 24 to update the settings. In other words, if it was initially set to "off", pressing the select switch 12 once will set it to 160°C.
Pressing it again will set the temperature to 180℃, repeat this process, and press the select switch 12 when the setting is 200℃.
Press to update the setting to "off" again. Step 25 is a process for releasing the latch means 7 for reaching the appropriate temperature, which will be described later. In other words, select switch 12
By pressing , the settings are updated and it is determined that the base temperature has not reached the set temperature. In step 26, it is determined whether the setting is "off" or something else. If it is not set to "off", the process moves to step 27 and lights up the light emitting diode corresponding to the set temperature. In other words, if the temperature was set to 160°C, the light emitting diode 19b would be lit,
If it is set to 180℃, light emitting diode 1
Turn on 9c. Step 28 involves checking the temperature of the base of the iron. The A/D converter 15 converts the temperature signal from the temperature detection element 6 into a binary code and reads it to determine the current temperature of the base. Step 29 compares the current temperature of the base obtained in step 28 with the set temperature determined in step 24. If the current temperature is below the set temperature, the process moves to step 30, and the transistor 16 is driven to make the power control means 4 conductive. Therefore, power is supplied to the heating element 5 from the AC power supply 17, and the temperature of the base increases. If the current temperature exceeds the set temperature in step 29, the process moves to step 31. In step 31, the driving of the transistor 16 is stopped and the power control means 4 is rendered non-conductive. Therefore, power is no longer supplied to the heating element 5. When the setting is "off" in step 26, the process moves to step 32 and the light emitting diode 19 corresponding to "off" is set.
After turning on the light a, the process moves to step 31, and the power supply to the heating element 5 is stopped. In step 33, it is determined whether the current temperature of the base has become equal to the set temperature, that is, whether the appropriate temperature has been reached. When the appropriate temperature has been reached, return to step 23. If the temperature has not yet reached the appropriate temperature, proceed to step 34. In step 34, it is determined whether the current temperature has become equal to the set temperature. When they are equal, the process moves to step 35, where only the light emitting diode corresponding to the set temperature lights up, and the appropriate temperature notification means 8, that is, the heating element 13, notifies the arrival of the appropriate temperature, and the appropriate temperature display state and the notification operation of the appropriate temperature notification means 8 are performed. The subsequent state is latched by the latch means 7. Therefore, the appropriate temperature display state will be maintained from then on, and the appropriate temperature notification will continue until the setting is updated.
It only takes place the first time. The latch means 7 is unlatched at step 25, that is, when the select switch 12 is pressed and the set temperature is updated. The notification of reaching the appropriate temperature is performed by applying a rectangular wave signal to the transistor 18 and driving the sounding body 13. The notification is made for a short period of time, approximately a few seconds, and after the notification, the process returns to step 23. If the current temperature has not reached the set temperature in step 34, the process returns to step 23 after flashing the light emitting diode corresponding to the current temperature in step 36. This completes the series of operations. Next, FIG. 5 shows the relationship between the temperature of the base of the iron, the select switch 12, the heating element 13, and the display device 19. In Figure 5, period T ₁ is set to 200°C and the base temperature rises, and period T ₂ is set to ``off'' and the base temperature falls while the temperature is controlled at 200°C. During period _T3 , the temperature is set at 160°C, the base temperature drops, and the temperature is controlled at 160°C. During period _T1 , the light emitting diode 19d indicating that the temperature has been set to 200° C. is lit continuously. The current temperature display shows that the base temperature is rising and the current temperature is
Light emitting diode 1 until reaching 150℃ (time t ₁ )
9a flashes. Furthermore, the temperature of the base increases,
When the temperature of the base reaches 150° C., at t ₁ the light emitting diode 19a goes out and the light emitting diode 19b flashes. The temperature rises further, and the base temperature
When the temperature reaches 170° C. t ₂ , the light emitting diode 19b turns off and the light emitting diode 19c blinks. Next, the current temperature is displayed blinking until the set temperature of 200° C. is reached at t ₃ , and the light emitting diode 19c continues blinking. When the temperature of the base reaches the set temperature of 200℃, _t3 , the light emitting diode 1 that has been displaying the current temperature
The blinking light 9c goes out, and only the light emitting diode 19d displaying the set temperature of 200° C. lights up continuously, so that it can be determined that the base temperature has reached the appropriate temperature. Also,
At this time, the sounding body 13 sounds for a short time to notify the appropriate temperature. Note that due to the action of the latch means 7, even if the temperature of the base temporarily decreases, the current temperature is not displayed and no notification operation is performed. time t ₃ to t ₄
During this time, the temperature of the heating element 5 is controlled at 200°C.
The light emitting diode 19d corresponding to continues to be lit. Next, at time _t4 , press the select switch 12 to change the set temperature from 200°C to "off". At this time, the latch of the latch means 7 is released, and only the light emitting diode 19a corresponding to "off" lights up, and the current temperature is not displayed by blinking the light emitting diode. Also, at time t ₅ , press select switch 12,
When the set temperature is changed from "off" to 160°C, the latch means 7 is unlatched and the light emitting diode 19b corresponding to 160°C lights up. Then, the temperature of the base decreases, and the light emitting diode 19d blinks until the temperature of the base reaches 190°C, and when the temperature of the base reaches 190°C, the light emitting diode _19d
d goes out, and the light emitting diode 19c starts blinking. The base temperature drops further than 190℃,
Light emitting diode 1 until the set temperature reaches ₁₆₀ ℃
9c is blinked, and when the temperature reaches 160°C, the light emitting diode 19c stops blinking, and only the light emitting diode 19b corresponding to 160°C is lit. Also,
When the temperature reaches 160° C. t ₇ , the heating element 13 notifies the appropriate temperature. In this case as well, the latch means 7 operates, and unless the set temperature is changed by the select switch 12, the current temperature display and appropriate temperature notification will not be performed. The above example can be summarized as follows.

[Table] However, the current temperature display one position before the set temperature will continue to display the current temperature until the set temperature is reached. Effects of the Invention As is clear from the above embodiments, the iron of the first invention displays this on the display device when the temperature of the base of the iron reaches the appropriate temperature.
It is very easy to use, and at the same time it latches with a latching means and maintains the latched state until the set temperature is updated by the next operating means.
Even if the temperature of the base temporarily drops during ironing, the appropriate temperature display does not change accordingly and remains stable. Therefore, it is very effective in actual ironing work. In addition, the iron of the second invention not only notifies the appropriate temperature but also latches it so that even if the temperature of the base changes temporarily, there is no need to notify again.
It is very advantageous in use. Furthermore, the iron of the third invention has an appropriate temperature display and an appropriate temperature notification, and these are latched so that even if the temperature of the base changes temporarily, it does not follow this, making it even more excellent in use. ing.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the relationship between each part of an iron showing an embodiment of the present invention, Fig. 2 is a partially cutaway side view showing the configuration of the iron, Fig. 3 is an electrical circuit diagram of the iron, FIG. 4 is a diagram showing the flow of the operating procedure of the iron, and FIG. 5 is an explanatory diagram regarding the set temperature display, current temperature display, and appropriate temperature notification. 1...Operating procedure, 2...Appropriate temperature determination means, 3...
Temperature control means, 4...Power control means, 5...Heating element, 6...Temperature detection element, 7...Latching means, 8
...Appropriate temperature notification means, 19...Display device, 19A...
...Set temperature display means, 19B...Current temperature display means.

Claims (1)

[Claims] 1. A heating element that heats the base of the iron, an operating means that switches and operates the set temperature of the base,
a temperature detection element that detects the temperature of the base; a temperature control means that operates based on the output of the operating means and the temperature detection element and controls energization to the heating element via the power control means; an appropriate temperature determining means for determining whether the base temperature of the iron has reached the set temperature; a display device for displaying this when the base temperature of the iron reaches the set temperature; and a display device for displaying this when the base temperature of the iron has reached the set temperature; latch means for holding the display state of the display device and releasing the holding of the display state by updating the set temperature by the operating means when it is determined that the iron is latched. 2. A heating element that heats the base of the iron, and an operating means that switches and operates the set temperature of the base;
a temperature detection element that detects the temperature of the base; a temperature control means that operates based on the output of the operating means and the temperature detection element and controls energization to the heating element via the power control means; an appropriate temperature determining means for determining whether the base temperature of the iron has reached a set temperature; an appropriate temperature informing means for notifying the appropriate temperature for a short time when the base temperature of the iron reaches a set temperature; and the base temperature of the iron is set by the appropriate temperature determining means. An iron having a latch means for holding the state of the suitable temperature notifying means after the notification operation when it is determined that the temperature has been reached, and for releasing the holding of the suitable temperature notifying means by updating the set temperature by the operating means. 3. A heating element that heats the base of the iron, an operating means that switches and operates the set temperature of the base,
a temperature detection element that detects the temperature of the base; a temperature control means that operates based on the output of the operating means and the temperature detection element and controls energization to the heating element via the power control means; an appropriate temperature determining means for determining whether the base temperature of the iron has reached a set temperature; a display device for displaying this when the base temperature of the iron reaches a set temperature; and an appropriate temperature informing means for notifying the appropriate temperature for a short time; When it is determined that the base temperature has reached the set temperature, the display state of the display device and the state after the alarm operation of the appropriate temperature notification means are maintained, and the display state and the state of the appropriate temperature notification means are maintained by updating the set temperature by the operating means. and latch means for releasing the retention.