JP2010025505A - Steam discharge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that regarding a steam discharge device, where a rice cooker and an electric pot are connected to a power receptacle of its storage part and used, if the electric current slightly exceeds 14.5 A, a circuit breaker operates to perform abnormal state communication despite a state that the electric pot is not connected, a person at home recognizes it as an abnormal state and turns off the power of the steam discharge device, and the rice cooker does not complete cooking, by not delivering abnormal state communication when the electric pot is not connected and by delivering the abnormal state communication when the electric pot is connected to the rice cooker because continuing the state of slightly exceeding 14.5 A is no problem if the state is within a range that the power receptacle and a sub breaker keep safety. <P>SOLUTION: A control part includes a first set value slightly lower than a breaking rated current value of the breaker and a second set value slightly higher than the breaking rated current value. The control part controls the circuit breaker (relay) to perform breaking operation when a total current increases to the first set value or more and to be while the abnormal state communication when the total current increases to the second set value or more. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a steam discharge device configured to store and use appliances with steam generation, such as a rice cooker and a water heater (electric pot), in a storage unit.

In the storage configured to store and use cooking utensils with steam generation in the storage,
Some rice cookers are installed on the left side of the storage unit, and an electric heat insulation pot is installed on the right side.The left and right sides of the ceiling surface in the storage unit have recessed spaces that are recessed upward. A square annular steam inlet is formed in the concave space, a rectangular annular steam inlet is formed in the right concave space, and a triangular shape having inlets 8a and 8b formed above these steam inlets, respectively. A duct is placed, a single centrifugal blower is placed at the front end of this duct,
Some of the steam sucked from each steam suction port by the operation of the blower is sucked into the duct from each suction port 8a, 8b and discharged from the steam exhaust port on the front surface. (See Patent Document 1).
JP 2007-195664 A

In this type of steam discharge device, two types of steam generators with different power consumption, such as rice cookers and water heaters (electric pots), are stored on the left and right sides of the storage unit, and are connected to the respective power outlets provided in the storage unit. A power breaker installed in a general house is used by a breaker that cuts off by a total current in the house (referred to as a parent breaker) and a current for each circuit branched from the parent breaker. A plurality of breakers (hereinafter referred to as child breakers) that perform a shut-off operation are provided, and a steam discharge device is connected to the circuit of the one child breaker. In this steam discharge device, if both the rice cooker and the water heater (electric pot) are connected and the breaker breaker current exceeds the rated current, the rice cooker Electric power is cut off, resulting in poor cooking.

In view of these points, the applicant must use a rice cooker and a water heater (
When an electric pot is connected and energized, if the breaker breaker current exceeds the rated current value during cooking in the rice cooker, it is detected immediately and the water heater (electric pot) is turned off. And the control system controlled by a control part is invented so that cooking failure may not arise by continuing energization of a rice cooker.

In general household use, the breaking current rating of the parent breaker is usually 20 amperes, and the breaking current rating of the child breaker is 15 amperes. Also, the outlets used for general households are
The rated current is 15 amps. Note that the power breaker has a permissible operating range because neither the parent breaker nor the child breaker immediately shuts off even when the breaking rated current is reached.

The thing shown in FIG. 7 has shown the interruption | blocking operation characteristic figure of the interruption | blocking rated current used as a parent breaker used in a general household whose 20 ampere is. In a state where the current exceeds 20 amperes, a state in which the current is not interrupted continues even if energized continuously.
When it is 5% (at 25 amps), the state of non-interruption continues until it is energized for approximately 40 seconds, and when it is 150% of the current 20 amps (at 30 amps), it is energized for approximately 20 seconds. It can be seen that the state of not shutting off continues. As described above, the power breaker has a characteristic having an allowable value that does not immediately cut off even when the rated breaking current is exceeded, and the same applies to the child breaker. Moreover, the outlet used for a general household can endure even if a current slightly exceeding the rated current of 15 amperes flows. This takes into account safety and manufacturing errors.

Here, the above control method will be described with reference to FIGS. 4, 5, and 6. When a rice cooker and a water heater (electric pot) are connected to the two outlets of the storage part of the steam discharge device,
The judgment value as to whether or not to cut off the power supply to the outlet connected to the water heater (electric pot) is 14.5 amperes, which is close to 15 amperes. In this case, as shown in FIG. 4, when only the rice cooker is connected to the outlet, even if the rice cooking operation is started, it is less than 14.5 amperes. However, when both the rice cooker and the water heater (electric pot) are connected and the rice cooking operation and the water heating operation are performed simultaneously, it becomes 14.5 amperes or more.
It is necessary to cut off the power supply to the outlet connected to the electric pot. In this case, 14.
Rather than immediately shutting off when 5 amps or more, when the state of 14.5 amps or more continues for a predetermined time T1, the control unit opens power to the outlet connected to the water heater (electric pot). The current breaker is operated. This is because when the state instantaneously becomes 14.5 amperes or more due to some cause, the blocking operation is performed. Therefore, in order to avoid this, the predetermined time T1 is provided. This time
Both the outlet and the child breaker are within a range where safety can be maintained, and the predetermined time T1 is set to 6 to 7 seconds.

As described above, the current breaker opens the energization circuit to the outlet connected to the water heater (electric pot) by the control unit, but the control unit is in a signal state for operating the current breaker, but the contact point of the current breaker If the current breaker contacts do not open due to welding or other causes,
The electric pot) remains energized. In this case, as shown in FIG. 5, when the control unit continues for a predetermined time T2 following the predetermined time T1, the control unit issues an abnormality notification signal for notifying that an abnormal state has occurred, and the abnormality notification is displayed on the display unit. This is done by displaying, turning on an alarm lamp such as an LED, or operating a buzzer. A householder can keep the steam discharge device safe by watching or listening to this abnormality notification, and unplugging the rice cooker / water heater (electric pot) or manually shutting off the breaker. If you leave this abnormality notice,
At some point, the child breaker will automatically shut off.

However, recently, there is a rice cooker with a large output to cook delicious rice, and there is one that flows a large current close to 14.5 amperes, and this rice cooker has two parts in the storage part of the steam discharge device. 14.5 amperes due to the state of power supplied to the home or due to manufacturing errors of the rice cooker, even if the other outlet is empty without a water heater (electric kettle) connected to one of the outlets May be slightly exceeded.

In this case, as described above, the control unit is in a signal state to activate the current breaker, and operates the current breaker to open the energization circuit to the outlet on the side not connected to the rice cooker,
Since only the rice cooker is operating, the total current value does not drop. In this case, as shown in FIG. 6, an abnormality notification signal (notifying an abnormal state) by the control unit when it continues for a predetermined time T2 following the predetermined time T1, as shown in FIG. (Also called alarm signal)
Will be notified by the notification unit. As notification by the notification unit, abnormality notification is displayed on the display unit, an abnormality notification lamp such as an LED is turned on, or a buzzer is operated.

In addition, in this way, although a water heater (electric pot) is not connected, 14
. If the current exceeds 5 amperes, the current breaker is activated by the control unit to notify the abnormality, so that the person in the home recognizes that it is in an abnormal state by the abnormality notification, and the rice cooker / water heater (electric pot) Unplug the power outlet or turn off the breaker manually. However, 14
. If the condition of slightly over 5 amperes is within the range where both the outlet and the child breaker can maintain safety, unplug the rice cooker / water heater (electric pot), regardless of whether or not the condition can be maintained, or By manually shutting off the breaker, the rice cooker is interrupted during cooking, resulting in poor cooking.

The present invention makes effective use of the interruption characteristics of the power breaker having the operation allowable range as described above, and 14 is not connected to the water heater (electric pot) as described above.
. Even if it exceeds 5 amperes, the outlet and child breaker are maintained in a range where safety can be maintained. And when the water heater (electric pot) is connected, the electric current which rose by it is detected, and when this state continues for a predetermined time T3, an abnormality notification signal for notifying that it is an abnormal state is issued by the control unit. The abnormality notification is displayed on the display unit, the abnormality notification lamp such as an LED is turned on, or the buzzer is operated.

In this way, when the water heater (electric pot) is not connected, the present invention issues an abnormality notification when the rice cooker and the water heater (electric pot) are connected without issuing an abnormality notification. Is to prevent the rice cooker from being interrupted during cooking.

In the steam discharge device of the first invention, an electric rice cooker and other electric appliances are stored and installed in a storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, The steam generated from the storage unit by the discharge fan is sucked from the steam suction port opened in the storage unit and discharged from the steam discharge port to the outside of the storage unit, and connected to a power breaker having a predetermined cutoff rated current In the steam discharge apparatus, the controller that operates based on the total current flowing through each outlet, and a current breaker (relay) that cuts off the power to the outlet connected to the other electrical appliances, The control unit has a first set value that is slightly lower than the rated interrupting current value and a second set value that is slightly higher than the rated interrupting current. Cross unit (relay) is cutoff operation when the total current rises above the first set value, characterized in that the abnormality notification state when said total current rises above the second set value.

In the steam discharge device of the second invention, an electric rice cooker and other electric appliances are stored and installed in a storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, The steam generated from the storage unit by the discharge fan is sucked from the steam suction port opened in the storage unit and discharged from the steam discharge port to the outside of the storage unit, and connected to a power breaker having a predetermined cutoff rated current A control unit that operates based on a total current flowing through the respective outlets, and a current breaker that interrupts energization of the outlets to which the other electrical appliances are connected by the operation of the control unit. (Relay)
The control unit has a first set value slightly lower than the rated break current of the power breaker and a second set value slightly higher than the rated break current of the power breaker, and the total current is less than the first set value. Then, the current breaker (relay) does not perform the breaking operation, and the current detector detects a state (referred to as a first state) that is greater than or equal to the first set value and less than the second set value. First
When the current breaker (relay) continues for a predetermined time, the current detector detects a state (referred to as a second state) that is equal to or higher than the second set value while the first state continues. When the second state continues for a predetermined time, the control unit issues an abnormality notification signal.

In the steam discharge device of the third invention, an electric rice cooker and other electric appliances are stored and installed in a storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, The steam generated from the storage unit by the discharge fan is sucked from the steam suction port opened in the storage unit and discharged from the steam discharge port to the outside of the storage unit, and connected to a power breaker having a predetermined cutoff rated current In the steam discharge apparatus, a current detector that detects a total current flowing through the respective outlets, a control unit that operates based on the detection of the current detector, and the other electric appliances by the operation of the control unit A current breaker (relay) that cuts off the power supply to the outlet connected to the power supply, and an abnormality notification unit that notifies the abnormality by the operation of the control unit, The first set value that is slightly lower than the rated break current of the power breaker and the second set value that is slightly higher than the rated break current of the power breaker are provided, and the total current increases and is less than the second set value. When the current detector detects a state equal to or higher than the first set value (referred to as a first state), and the first state continues for a first predetermined time, the control unit turns on the current breaker (relay). The current detector detects a state (hereinafter referred to as a second state) in which the total current rises while the first state continues, and the state is equal to or higher than the second set value.
When the second state continues for a predetermined time, the control unit issues an abnormality notification signal to the abnormality notification unit.

The steam discharge device according to a fourth aspect of the present invention is the first to third aspects, wherein the breaker rated current of the power breaker is 15 amperes, the first set value is a value between 14 amperes and 15 amperes, and the second set value. Is a value between 15 amperes and 16 amperes, and the first predetermined time and the second predetermined time are 1 second to 10 seconds.

According to the present invention, while effectively utilizing the interruption characteristics of the power breaker having such an operation allowable range, as described above, although the water heater (electric pot) is not connected,
Even if the first set value (14.5 amperes in the embodiment) is slightly exceeded, if the outlet and the child breaker are within a range where safety can be maintained, the state is continued. And a water heater (
When the electric pot is connected, the current that has risen thereby is detected, and when this state continues for a predetermined time, the control unit issues an abnormality notification signal for notifying the abnormal state, and displays the abnormality notification This can be done by displaying on the display, turning on an abnormality notification lamp such as an LED, or operating a buzzer, etc.

In this way, when the water heater (electric pot) is not connected, the abnormality notification is not issued, and when the rice cooker and the water heater (electric pot) are connected, the abnormality notification is issued, and the rice cooker is cooked. It will be possible to avoid being interrupted on the way.

In the steam discharge device of the present invention, an electric rice cooker and other electric appliances are stored and installed in a storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, thereby discharging steam. The steam generated from the storage unit by the fan is sucked from the steam suction port opened in the storage unit and discharged from the steam discharge port to the outside of the storage unit, and is connected to a power breaker having a predetermined cutoff rated current. In addition, the steam discharge device includes a control unit that operates based on a total current of the currents flowing through the respective outlets, and a current breaker (relay) that interrupts energization to the outlets to which the other electric appliances are connected, The control unit has a first set value that is slightly lower than the rated interrupting current value and a second set value that is slightly higher than the rated rated current. The device (relay) is cut off when the total current rises above the first set value, and enters an abnormality notification state when the total current rises above the second set value. Examples are described below.

An embodiment of the present invention will be described. FIG. 1 is a front perspective view of a steam discharge device according to the present invention,
FIG. 2 is a control circuit diagram of the steam discharge device according to the present invention, and FIG. 3 is an explanatory diagram of the control operation according to the present invention.

In FIG. 1, reference numeral 1 denotes a steam discharge device of the present invention, and a body 2 of the steam discharge device 1 is
A steam generator such as a rice cooker or a water heater is provided with a storage part (storage room) 3 with a front opening in which the steam generator is stored on the left and right, and steam is placed on the top of the machine body 2 so as to be positioned above the storage part (storage room) 3. A discharge unit JU is attached. The steam discharge unit JU is attached to the machine body 2 so as to form a ceiling portion of the storage unit (storage chamber) 3, and a decorative panel 4 is provided on the front surface thereof. The steam discharge unit JU is a steam provided with various ducts and a steam discharge fan 9 between an outer shell plate 51 forming an outer wall such as an upper surface and a ceiling plate 5 forming a ceiling surface of a storage section (storage chamber) 3. A discharge passage 8 is formed, and the vapor in the storage portion (storage chamber) 3 is sucked from a vapor suction port 6 formed in the ceiling surface of the storage portion (storage chamber) 3, and is formed in the decorative panel 4 through the vapor discharge passage 8. The steam discharge port 7 discharges the storage unit (storage chamber) 3 to the outside. A power outlet 10 is attached to the wall (back wall in the figure) in the storage unit (storage room) 3 as a power source for the appliance 11 that generates steam such as an electric rice cooker or a water heater (electric pot). . In the embodiment, as two types of steam generators having different power consumption, a water heater (electric pot) 11A and a rice cooker 11B having a larger power consumption than the water heater 11A are shown. A two-port power outlet 10 having a first power outlet (insertion port) 10A and a second power outlet (insertion port) 10B is employed.

A microcomputer-type control unit 12 is housed in the decorative panel 4, an operation panel 13 is provided on the front surface of the decorative panel 4, and the operation panel 13 is turned on / off of the steam discharge device 1 (
ON / OFF) switch section 14, operation mode selection switch section 15, automatic standard mode display section 16, automatic long-time mode display section 17, manual mode display section 18, and priority operation mode display section. 19 and a horizontally long indicator 20 for displaying an operation state below them. Each display part 16, 17, 18, 19 is a structure displayed by lighting of one LED, respectively, and the indicator 20 is the structure by which several LED was arrange | positioned at 1 horizontal line in a straight line. The switch units 14 and 15 and the display units 16, 17, 18, 19, and the indicator 20 are electrically connected to the control unit 12, and the steam exhaust fan 9 is also electrically connected to the control unit 12. ing.

Reference numeral 21 denotes a power source for a house supplied from the electric power company to the house, and is connected to a breaker 22A (hereinafter referred to as a parent breaker) that performs a shut-off operation with a total current in the house. A plurality of breakers 22B (referred to as child breakers) that branch off from the parent breaker 22A and perform a blocking operation for each circuit connected to each outlet 25C in the house are provided.
The parent breaker 22A and the child breaker 22B are arranged on a switchboard 26 provided in the house.
The power supply to the steam discharge device 1 can be obtained by inserting the power plug 25B of the steam discharge device 1 into an outlet 25C provided in the house for the steam discharge device 1.

The outlet used for a general household has a rated current of 15 amperes, and the rated current of each outlet 25C is a prescribed 15 amperes. The rated breaking current of the parent breaker 22A is
There are various values such as 20 amperes, 30 amperes, 50 amperes, etc., but in the embodiment, it is assumed to be 20 amperes. Further, the interrupting rated current of the child breaker 22B has various values such as 15 amperes and 20 amperes, but is assumed to be 15 amperes in the embodiment. The current breaking rated current of the child breaker 22B is generally 20 amperes, but in the old type child breaker 22B,
Some have a rated interrupting current of 15 amps.

The present invention has a maximum current of 14 as described in “Problems to be solved by the invention” above.
. The present invention provides a technique for solving the problem when using a rice cooker in which a large current close to 5 amperes flows. For this reason, the interrupting rated current of the child breaker 22B is 15 amperes, and the interrupting rated current of the parent breaker 22A may be larger than this, and may be 30 amperes or 50 amperes, but in the embodiment, it is 20 amperes.

As shown also in FIG. 7, neither the parent breaker 22A nor the child breaker 22B immediately shuts off even when the breaking rated current is reached, and has an allowable operating range. For example, the breaker 22B having a rated interrupting current of 15 amperes is configured not to be interrupted even if 120% of 15 amperes (18 amperes) flows for one hour. Further, the outlet 25C used for ordinary households can withstand a current slightly exceeding the rated current of 15 amperes.

In the control circuit diagram of the steam discharge device 1 shown in FIG. 2, the first power outlet (plug)
10A and the second power outlet (insertion port) 10B are connected in parallel to the power supplied from the power plug 25B. The first power outlet (plug) 10A is for a water heater (electric pot) 11A, and the second power outlet (plug) 10B.
Is for the rice cooker 11B. A current breaker (relay) 23 opens and closes a contact 23A2 connected to the energization circuit of the first power outlet 10A. The controller 12 controls the energization of the coil 23A1, thereby opening and closing the contact 23A2. 24 is the first power outlet 10
It is a current detector that detects the total current of A and the second power outlet (insertion port) 10B.
In the current detector 24, the total current flows through the primary side coil 24A, and 2
The current or voltage generated in the secondary coil 24B is input to the control unit 12, and the control unit 12 operates.

In such a configuration, the power is supplied to the steam discharge device 1 with the power plug 25B inserted into the outlet 25C in the house, and the power is supplied to the power outlet 10. In this state, plug the power plug of the water heater (electric pot) 11A into the first power outlet 10A, and if there is a start switch provided for it, it is O
When the power is turned on, the switch is turned on by pressing the power on / off (ON / OFF) switch section 14, and the signal is input to the control section 12. The display section 1 in the automatic standard mode
6 LED lights up. In this state, the water heater (electric pot) 11A is energized, and the steam discharge fan 9 is put into a high-speed operation state by the operation of the control unit 12 based on the detection of the current detector 24. In this case, the current during boiling of the water heater 11A is detected by the current detector 24,
The value detected by the current detector 24 is compared with the set value of the control unit 12 (14.5 amperes in the embodiment), but the value detected by the current detector 24 is set to the set value of the control unit 12 (14 in the embodiment). Current breaker (relay) 23 does not operate, and the operation of the control unit 12 continues the energization state of the water heater (electric pot) 11A until the boiling of the water heater 11A ends, A large amount of steam generated at this time is discharged well by the steam discharge fan 9.
And after boiling up, it will be in a heat retention state.

In addition, as described above, the power plug 25B is inserted into the outlet 25C in the house, and the power is supplied to the steam discharge device 1, and the power plug of the rice cooker 11B is connected only to the second power outlet (insertion port) 10B. If there is a start switch provided there, the switch is turned on by pressing the power on / off (ON / OFF) switch section 14 and the signal is input to the control section 12. Then, the LED of the display unit 16 in the automatic standard mode is turned on. In this state, the rice cooker 11B is energized, and based on the detection of the current detector 24, the operation of the control unit 12 causes the steam exhaust fan 9 to be in a high-speed operation state. In this case, the current during boiling of the rice cooker 11B is detected by the current detector 24, and the value detected by the current detector 24 is compared with the set value of the control unit 12 (14.5 amperes in the embodiment). Since the value detected by the current detector 24 is lower than the set value of the control unit 12 (14.5 amperes in the embodiment), the current breaker (relay) 23 does not operate until the cooking of the rice cooker 11B is completed. Control unit 1
The energized state to the rice cooker 11B is continued by the operation of 2, and the steam generated at that time is discharged well by the steam discharge fan 9. And after cooking, it will be in a heat retaining state.

In the normal state, the rice cooker 11B is cooked in this way. However, in the case where the rice cooker 11B has a large output in which a large current is close to the set value (14.5 amperes in the embodiment) of the control unit 12, the above-mentioned "Invention is solved" As described in “Problems to be performed”, a water heater (electric pot) 11 is connected to the first power outlet 10A.
Even if A is not connected, if the set value of the control unit 12 (14.5 amperes in the embodiment) is slightly exceeded, there is a concern that it will be in an abnormal notification state and may end during cooking. However, in the present invention, abnormality notification in such a case is not performed.

In order to perform such control according to the present invention, as shown in FIG. 3, the control unit 12 has a first set value S1 (14.5 in the embodiment) that is slightly lower than the breaking rated current 15 amperes of the child breaker 22B.
Ampere) and a second set value S2 (1 in the embodiment) that is slightly higher than the breaking rated current of 15 amperes.
5.8 amps), and the operation of the control unit 12 causes the current breaker (relay) 23 to shut off when the total current rises to the first set value S1 (14.5 amps) or more. When the temperature rises to the second set value S2 (15.8 amperes) or more, an abnormality notification state (also called an alarm state) is set.

More specifically, the control unit 12 has a first set value S1 (14.5 amperes in the embodiment) that is slightly lower than the breaking rated current 15 amperes of the child breaker 22B and a little lower than the breaking rated current 15 amperes. It has a high second set value S2 (15.8 amperes in the embodiment), the total current rises due to some factor, and the current detector 24 detects the total current at this time. In this case, a state in which the total current is less than the second set value S2 (15.8 amperes) but is equal to or greater than the first set value S1 (14.5 amperes) (referred to as the first state) is a first predetermined time. T1 (
In the embodiment, when the operation is continued, the control unit 12 enters a signal state that causes the current breaker (relay) 23 to perform a breaking operation, and the current breaker (relay) 23 is in the first power outlet 10A in the normal state. It will cut off the energization.

However, in this case, the control unit 12 is in a signal state for operating the current breaker 23, but causes such as failure of the signal line from the control unit 12 to the current breaker 23, welding of the contact 23A2 of the current breaker 23, etc. Thus, if the situation where the contact 23A2 of the current breaker 23 is not opened occurs, the energization to the first power outlet 10A is not interrupted. For this reason, the first state continues following the first predetermined time T1 (6 to 7 seconds in the embodiment). The continuation of the first state is the second predetermined time T2.
Even if the operation continues (5 seconds in the embodiment), the control unit 12 does not issue an abnormality notification signal.

The total current in this case is less than the second set value S2 (15.8 amperes in the embodiment) that is slightly higher than the breaking rated current 15 amperes of the child breaker 22B. As described above, the child breaker 22B has a characteristic of having an allowable value that does not immediately cut off even if the breaking rated current is exceeded. Even if this total current flows, the child breaker 22B does not perform the breaking operation or the breaking operation. It takes a considerably long time (for example, more than 1 hour). If this time is about 1 hour, cooking of most rice cookers 11B is completed within this time.

As described above, since energization to the first power outlet 10A is not cut off, the second predetermined time T
At a certain time tp when 2 (5 seconds in the embodiment) has elapsed, the power plug of the water heater (electric pot) 11A is inserted into the first power outlet 10A, or the start switch provided for it is turned on. In the state, when a current flows to the water heater (electric pot) 11A and the water heating operation starts, the total current becomes equal to or higher than the second set value S2 (15.8 amperes in the embodiment) as shown in FIG. The total current at this time is detected by the current detector 24,
When the control unit 12 continues for the third predetermined time T3 (5 seconds in the embodiment), it issues an abnormality notification signal,
Thereby, abnormality notification is performed by abnormal lighting display of any LED of the display units 16 to 20, abnormality display by the indicator 20, operation of the buzzer 27, or the like.

By this abnormality notification, the person in the home notices that there is an abnormality and either pulls out the power plug 25B from the outlet 25C, or turns off the power switch if there is a power switch in the steam discharge device 1, or a rice cooker / water heater (electric pot) Pull out the outlet or manually breaker 22
By shutting off A or 22B, the steam discharge device 1 can be kept safe. If this abnormality notification state is left unattended, the child breaker 22B
A shut-off operation is automatically performed at time te according to the operation characteristics.

In the above operation, the second predetermined time T2 (5 seconds in the embodiment) does not particularly contribute to the determination. Therefore, the second predetermined time T2 (5 seconds in the embodiment) is not the gist of the present invention.

The breaking rated current of the child breaker 22B is 15 amperes, the first set value S1 is a value between 14 amperes and 15 amperes, the second set value S2 is a value between 15 amperes and 16 amperes, and the first predetermined time By setting T1, the second predetermined time T2, and the third predetermined time T3 to 1 to 10 seconds, a stable operation as described above can be obtained.

In the above description, the first power outlet 10A is used for the heater (electric pot) 11A, the second power outlet 10B is used for the rice cooker 11B, and the current breaker (relay) 23 is used for cutting off the energization of the first power outlet 10A. However, it is not limited to this. For example, boiling machine (electric pot) 1
1A and rice cooker 11B may be connected to either first power outlet 10A or second power outlet 10B. In that case, a current detector and a current are connected to first power outlet 10A and second power outlet 10B, respectively. Connect a series circuit of circuit breakers (relays). Control unit 1
2 is based on the value detected by both current detectors, the larger current value is determined as the rice cooker 11B,
When the second set value S2 or more, the current breaker (relay) of the outlet connected to the heater (electric pot) 11A is cut off. The present invention can also be applied to such a system.

The present invention is not limited to the configurations shown in the above embodiments, but can be applied to various forms of steam discharge devices, and includes various forms within the technical scope of the present invention.

1 is a front perspective view of a steam discharge device according to the present invention. It is a control circuit diagram of the steam discharge apparatus which concerns on this invention. It is control operation explanatory drawing which concerns on this invention. It is operation | movement explanatory drawing at the time of the normal circuit of the interruption circuit of the water heater (electric pot) side outlet in a steam discharge device. It is operation | movement explanatory drawing at the time of the circuit breaker abnormality of the water heater (electric pot) side outlet in a steam discharge device. It is operation | movement explanatory drawing at the time of abnormality which arises in the connection state of only a rice cooker in a steam discharge device. It is a breaking operation characteristic figure of a breaker whose breaking current rating is 20 amperes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Steam discharge device 2 ... Body of steam discharge device 3 ... Storage part (storage room)
4 ... Makeup panel 5 ... Wall (ceiling wall in the figure)
6 ... Vapor suction port 7 ... Vapor discharge port 8 ... Exhaust passage 9 ... Vapor exhaust fan 10 ... Power outlet 10A ... First power outlet (Insert)
10B ... Second power outlet (plug)
DESCRIPTION OF SYMBOLS 11A ... Water heater 11B ... Rice cooker 12 ... Control part 13 ... Operation panel 14 ... Power on / off (ON / OFF) switch part 16-20 ... Display part 21 .... Power supply for house 22A ... Parent breaker 22B ... Sub breaker 23 ... Current breaker (relay)
24 ... Current detector 25B ... Power plug 25C ... Outlet 27 ... Buzzer

Claims (4)

An electric rice cooker and other electric appliances are stored and installed in the storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, and generated from the storage unit by a steam exhaust fan. In each of the steam discharge devices configured to suck steam from a steam suction port opened in the storage unit and discharge the steam out of the storage unit from a steam discharge port, and connected to a power breaker having a predetermined cutoff rated current, A control unit that operates based on the total current flowing through the outlet, and a current breaker (relay) that interrupts energization of the outlet to which the other electrical appliance is connected, the control unit having the interrupting rated current value A first set value slightly lower than the first set value and a second set value slightly higher than the breaking rated current, and the operation of the control unit causes the current breaker (relay) to Flow is interrupted operation when rises above the first set value, the steam discharge apparatus characterized by an abnormal notification state when said total current rises above the second set value. An electric rice cooker and other electric appliances are stored and installed in the storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, and generated from the storage unit by a steam exhaust fan. In each of the steam discharge devices configured to suck steam from a steam suction port opened in the storage unit and discharge the steam out of the storage unit from a steam discharge port, and connected to a power breaker having a predetermined cutoff rated current, A controller that operates based on the total current flowing through the outlet, and a current breaker (relay) that interrupts energization of the outlet to which the other electrical appliance is connected by the operation of the controller, and the controller Comprises a first set value slightly lower than the interrupting rated current of the power breaker and a second set value slightly higher than the interrupting rated current of the power breaker, If current is said current breaker in the state less than the first set value (relay) without interrupting operation, the state of less than the first set value or more the second set value (which first
The current breaker (relay) is cut off when the current detector detects the current state) and the first state continues for a first predetermined time, and further, the second set value while the first state continues. The steam discharge device according to claim 1, wherein when the current detector detects the above state (this is referred to as a second state) and the second state continues for a predetermined time, the control unit issues an abnormality notification signal. An electric rice cooker and other electric appliances are stored and installed in the storage unit, and the electric rice cooker and other electric appliances are connected to respective outlets provided in the storage unit, and generated from the storage unit by a steam exhaust fan. In each of the steam discharge devices configured to suck steam from a steam suction port opened in the storage unit and discharge the steam out of the storage unit from a steam discharge port, and connected to a power breaker having a predetermined cutoff rated current, A current detector that detects the total current flowing through the outlet, a control unit that operates based on the detection of the current detector, and the operation of the control unit energizes the outlet to which the other electrical appliance is connected. A current breaker (relay) for cutting off and an abnormality notifying unit for notifying abnormality by operation of the control unit, wherein the control unit has a breaking rating of the power breaker A first set value slightly lower than the current and a second set value slightly higher than the rated breaking current of the power breaker, and the total current rises and is less than the second set value, but greater than the first set value. When the current detector detects this state (this is referred to as a first state), and the first state continues for a first predetermined time, the control unit turns off the current breaker (relay), and further When the total current increases while the first state continues and the current detector detects a state equal to or higher than the second set value (referred to as the second state), and the second state continues for a predetermined time The steam discharge apparatus according to claim 1, wherein the control unit issues an abnormality notification signal to the abnormality notification unit. The breaking current rating of the power breaker is 15 amperes, the first set value is a value between 14 amperes and 15 amperes, and the second set value is a value between 15 amperes and 16 amperes,
The steam discharge device according to any one of claims 1 to 3, wherein the first predetermined time and the second predetermined time are 1 second to 10 seconds.

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