JPH1094479A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a governor without using a special jig or the like, and to improve the workability for maintenance, regarding a separate type rice cooker. SOLUTION: An adjustment ignition switch 18 is provided on the base 2 of the rice cooker 1. This switch 18 is manually turned on and off, and a controller performs an ordinary ignition control process for burning a gas burner 5 over the preset time without any input operation of the operation part 11 of a cooker, when the switch 18 is turned on. Thus, the governor 5 becomes adjustable over the preset time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separate type rice cooker in which a jar provided with an inner pot and the like can be detached from a base provided with a gas burner and the like.

[0002]

2. Description of the Related Art In a rice cooker, a jar portion having an inner pot is detached from a base portion provided with a gas burner, a power cord, and the like so that the cooked rice can be easily transported to a dining table or the like. There is a separate type that can be moved separately. The jar has an operation unit having a rice cooker switch for performing an ignition operation of a gas burner, and a rice cooker.
During warming, a display unit for displaying an operation state such as the current time is provided, and when the jar unit is placed at a fixed position, connection terminals provided on the jar unit and the base unit are electrically connected to each other. The operation state is set by an input to the operation unit.

[0003]

In such a rice cooker, when adjusting the governor provided on the gas burner by gas conversion or the like, the upper burner is removed to expose the gas burner, and the governor is adjusted while burning the gas burner. Will be done. However, since the jar part provided with the operation part is removed and input from the operation part is not possible, it is connected to the connection terminal on the base part side using a jig for ignition, and the gas burner is operated by input operation to the jig. Burning. If the rice cooker is provided with a pot switch on the base side to check the placement of the jar, a weight or the like for turning the pot switch ON without the jar is also required. Therefore, maintenance such as gas conversion was troublesome due to these jigs and the like, and workability was poor.

Accordingly, an object of the present invention is to provide a rice cooker in which governor adjustment can be easily performed without using the jig or the like and maintenance workability is improved.

[0005]

According to a first aspect of the present invention, an ignition switch is provided on the base portion, and the gas burner is detached from the jar portion by turning on the ignition switch. Is a rice cooker that can be burned for a predetermined time. According to a second aspect of the present invention, in addition to the object of the first aspect, the ignition switch has
Before turning on the ignition switch, turn off the ignition switch in order to eliminate failures caused by forgetting to flip-flop or turning on the ignition switch.
The state of F is confirmed, and the combustion of the gas burner is enabled only when the confirmation is made. Further, in addition to the object of the first or second aspect, the invention according to claim 3 is to prevent the gas burner from being turned on after the ON operation of the ignition switch in order to eliminate a malfunction due to an erroneous ON operation or ON failure of the ignition switch. Timer means for a predetermined time is provided before combustion, and combustion of the gas burner is enabled only when a desired signal is input within the count of the timer means.
According to a fourth aspect of the present invention, in addition to the object of the third aspect, the desired signal input is provided on the base portion so that workability is improved in a rice cooker provided with a pot switch. This is obtained by pushing a shuttle switch which is turned on by placing the jar in a fixed position.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a rice cooker.
Consists of a lower base portion 2 and a jar portion 3 placed on the base portion 2 at a fixed position. First, the base 2
A gas burner 5 having three solenoid valves 4a to 4c is provided in a gas flow path, and a controller 6 for controlling these is provided with a plug 7 for obtaining a commercial power supply and a storage battery 8 as a secondary power supply. I have. On the other hand, in addition to the inner pot 9 and the lid 10, the jar unit 3 has an operation unit 11 for inputting operation instructions such as rice cooking, warming, and timer rice cooking, and a display unit for displaying current time, cooking, and keeping warm. 12 are provided. Connection terminals 13a and 13b are provided on the upper surface of the base portion 2 and the lower surface of the jar portion 3, respectively. When the jar portion 3 is placed on the base portion 2 at a fixed position, the connection terminals 13a and 13b are electrically connected. Are electrically connected to each other so that power can be supplied and electric signals can be transferred between the base unit 2 and the jar unit 3 for temperature control. Further, reference numeral 14 denotes a kettle bottom sensor for detecting a temperature, which is located at the bottom of the inner pot 9 when the jar portion 3 is set, and 15 denotes a lid 10
A lid sensor for temperature detection, which is installed in
Is a shuttle switch which is turned on by setting the jar section 3 on the base section 2, and detection signals are respectively inputted to the controller 6. Reference numeral 17 denotes an ignition electrode. Therefore, the rice cooker 1
According to the above, the controller 6 causes the ignition electrode 17 to be sparked and opens the solenoid valves 4a to 4c by the input of the rice cooking instruction to the operation unit 11 on the side of the jar unit 3 so that the gas burner 5 is opened.
, And cooks rice by controlling the opening and closing of the solenoid valves 4a and 4b based on a known rice cooking sequence while monitoring the detected temperatures obtained from the kettle bottom sensor 14 and the lid sensor 15.

The base 2 is provided with an adjustment ignition switch 18. This is manually turned on / off. By turning on the adjusting ignition switch, the controller 6 performs normal ignition control and burns the gas burner 5 even if there is no input operation on the operation section 11 on the jar section 3 side. It is possible to make it. That is, by turning on the adjustment ignition switch 18, the controller 6 performs the adjustment combustion control as shown in FIG. This will be described below. In this adjustment combustion control, before turning on an adjustment ignition switch (hereinafter referred to as an ignition switch) 18, S1
It is determined whether or not the ignition switch 18 is in the OFF state. If the check is OFF, it is determined in S2 whether the ignition switch 18 has been turned on. Therefore, here, the ignition switch 18 must be turned OFF → O
If the switching of N is confirmed and the ignition switch 18 is forgotten to be turned off after the end of the previous adjustment combustion control, this control is not performed. That is, once the ignition switch 18 is turned on, the adjustment combustion control is performed only once. Will be imparted. Next, when the ignition switch 18 is turned on, the timer 1 (for example, 3 minutes) starts in S3. If the timer 1 is counting in S4, it is determined whether or not the shuttle switch 16 is turned on in S5. If it is ON, it is further determined in S6 whether or not the shuttle switch is turned off. As a result, even if weights or the like are not placed on the shuttle switch 16, it is sufficient to push it once by hand and turn it on, thereby improving workability.
Further, by setting the time limit by the timer 1, even if the ignition switch 18 is turned on by mistake, the turning on of the shuttle switch 16 is performed.
If a certain period of time elapses without a signal input by, the safety that ignition control is not performed is obtained. When the shuttle switch 16 is turned ON → OFF in this manner, in S7, the ignition electrode 1
The ignition control is performed in which the solenoid 7 sparks and the solenoid valves 4a to 4c open. If the ignition is confirmed in S8, the timer 2 (for example, 1 minute) is counted in S9, and if the time-up is confirmed in S10, the gas burner 5 is extinguished and the control ends. Governor adjustment can be performed during combustion by the timer 2.

As described above, in the adjusting combustion control, the governor can be easily adjusted without using a jig by operating the ignition switch, and the workability of maintenance at the time of gas conversion is extremely improved. In particular, here, the step (S1, S2) of confirming the OFF → ON of the ignition switch 18 and the shuttle switch 1 within a predetermined time by the timer 1 before the ignition control.
Steps S5 and S6 for confirming the input of the signal No. 6 are respectively provided, so that it is possible to cope with forgetting to turn off the ignition switch 18 or an erroneous operation, and to obtain high safety. In addition, the hook switch 16 does not need to be kept ON by using a weight or the like, and only needs to be pressed once to confirm the signal input by the timer 1, so that the configuration is rational and the operation is further simplified. You can. The time of the timers 1 and 2 may be appropriately increased or decreased.
And the steps of the adjustment combustion control are simplified (for example, the timer 1 or the O
The design can be appropriately changed according to the form of the rice cooker, such as omitting N confirmation). Further, the adjustment ignition switch may be a switch that is turned ON only when operated, or the timer 2 may be omitted so that combustion can be performed only while the switch is ON.

[0009]

According to the first aspect of the present invention, the gas burner for adjustment can be easily burned only by operating the ignition switch without using a special jig or the like. The workability of maintenance such as is very good. According to the second aspect of the invention, in addition to the effect of the first aspect, even if the ignition switch is forgotten to be turned off, the combustion control of the gas burner is not performed, thereby preventing a malfunction when the power is turned on. And high security can be obtained. Claim 3
According to the invention described in (1), in addition to the effect of the first or second aspect, even if there is an erroneous ON operation of the ignition switch, the combustion control of the gas burner is not performed, so that the ignition switch O
Safety after N operations is provided. According to the fourth aspect of the present invention, in addition to the effect of the third aspect, in the rice cooker provided with the shuttle switch, a rational configuration in which confirmation of the signal input of the third aspect is obtained by pushing the shuttle switch. By doing so, there is no need for a weight or the like that keeps the shuttle switch ON during maintenance, and the operation is further simplified.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a rice cooker.

FIG. 2 is a flowchart of adjustment combustion control.

[Explanation of symbols]

1. Rice cooker, 2. Base part, 3. Jar part, 5.
・ Gas burner, 6 ・ ・ Controller, 11 ・ ・ Operation unit,
12. Display section, 16 hook switch, 18 adjustment ignition switch.

Claims (4)

[Claims] 1. A jar section having an inner pot and an input operation section is detachable from a base section having a gas burner and a control section, and the jar section is placed in a fixed position on the base section. A rice cooker electrically connected to the rice cooker, wherein an ignition switch is provided on the base portion, and the gas burner can be burned for a predetermined time in a state where the jar portion is detached by turning on the ignition switch. 2. The gas burner is burned only when the ignition switch is turned off before the ignition switch is turned on.
The rice cooker according to the above. 3. A timer means for a predetermined time is provided after the ignition switch is turned on and before the gas burner is burned,
3. The rice cooker according to claim 1, wherein the gas burner is burned only when a desired signal is input within the count of the timer means. 4. The rice cooker according to claim 3, wherein the desired signal input is obtained by a push operation of a shuttle switch provided on the base portion and turned on by placing the jar portion in a fixed position.