JPH06165729A - System comprising a plurality of cookers - Google Patents

Abstract

PURPOSE:To cook food with a power source having a relatively small performance by connecting an electric heater for an evaporator in a first set of several cookers to the power source, controlling the connection to the power source portion based on the temperature information, controlling the second set of several cookers in the same manner and subsequently stopping the cooker in order as soon as cooking operation is finished. CONSTITUTION:An electric heater 10-1 and an electric heater 19 for a burner are connected to the power source 21-1. An evaporator 10 heats a burner 9. Each temperature is detected by the evaporator 10, and temperature detecting elements 20, 18 of the burner. Then at predetermined temperatures, an electric heater for burner is turned off. Then, quantity of the electricity for the electric heater 10-1 for an evaporator is lowered, and the controller 21 continues the control of electrification. Then after the electrification control of the electric heater 10-1 for evaporator is initiated, both heaters of the rice cooker are connected to the power source portion. Then the controller 21 executes the control in the same manner as the rice cooker 3. In this manner, the control of rice cooking continues in the same manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker suitable for a large amount of cooking at one time, such as a hotel, a cafeteria, a school lunch, or an outdoor lunch for a large number of people. More specifically, the present invention relates to a multi-cooker group system in which a plurality of single-cookers having a burner having a structure for vaporizing and burning liquid fuel are assembled and assembled.

[0002]

2. Description of the Related Art An example of a cooking device that has been used so far for cooking a large amount of food for a cafeteria or school lunch
The rice cooker described in Japanese Patent Publication No. 0-171219 will be described.

FIG. 11 shows a conventional example, in which a gas burner 101 is used as a heat source and a pot 102 for cooking rice is provided above the gas burner 101.
1033 rice cookers having a configuration in which the above are installed are stacked in three columns.

The rice cooking capacity of one conventional rice cooker 103 of this type is generally about 7 kg in terms of rice amount.

The reason why the amount of rice is about 7 kg is that the amount of water is 10 kg per 7 kg of rice (about 1.4 times the amount of rice) and the weight of the pot itself from the viewpoint of cooking rice. 5 kg
It is said that the total of around 22 kg with the addition of the above is the allowable limit for rice cooking work including transportation of the pot.

Further, if the amount of rice exceeds 7 kg, the temperature distribution (temperature unevenness) in the pot during cooking will be deteriorated and the finish of cooking will be adversely affected.

[0007] In addition to this, it is necessary to make it possible to comfortably perform the loosening work of rice and rice performed at a high temperature immediately after the completion of rice cooking, or to prevent it from hindering the efficient catering work, a larger size is required. It is based on the idea that it is not desirable to use a kettle.

The amount of rice that can be cooked by one pot is about 5
Since there are no meals, it is necessary to use a considerable number of rice cookers 103 when feeding hundreds or thousands of people at a time. In that case, in the conventional rice cooker 103,
Due to restrictions in handling work such as transportation of the pot 102, the maximum number of stackable stages in the vertical direction is three as shown in FIG. 11 showing the above-mentioned conventional example, and therefore, the three rice cookers 1
The amount of rice cooked by 03 is 150 meals.
As described above, when cooking rice for hundreds or thousands, it is necessary to use a plurality of these three-tiered rice cookers side by side.

[0009]

Most of the heat sources for small-sized cookers, mainly for household use, utilize electric heat which is easy to handle and control. Among rice cookers, such as rice cookers, that consume a large amount of heat energy, those that use gas fuel that is easily supplied with heat energy and whose heat energy is cheaper than electric energy are large. It is a part.

However, the price per unit energy is still several times higher than that of liquid fuel represented by kerosene, light oil, etc., and a cooker of this kind which consumes a large amount of fuel is still expensive. There was a problem that the fuel cost would be enormous.

Therefore, the development of a cooker using a burner using a liquid fuel such as kerosene or light oil as a heat source has been awaited. In particular, by using a vaporization Bunsen burner that vaporizes liquid fuel in advance and performs Bunsen type combustion, it becomes possible to bring combustion characteristics such as flame shape, flame distribution, and flame heat density to that of a conventional Bunsen gas burner, and to be heated. It is extremely convenient in terms of fuel consumption and cooking performance for cookers that require uniform heating of objects.

By the way, the burner of the liquid fuel vaporization type and the Bunsen combustion type which has been conventionally used is as described in, for example, Japanese Patent Application Laid-Open No. 4-24411, which is shown in FIG. The electric heater 104 is incorporated in the vaporizer 105 as a means for vaporizing the liquid fuel, the fuel gas vaporized by the vaporizer is jetted from the nozzle 106, and the jetting energy sucks the air for combustion to produce the fuel gas. As a mixture of + air, it reaches the main body of the burner 107 and is burned.

This combustion type carburetor 105 is generally
The temperature is adjusted at 280 ° C for kerosene and around 350 ° C for light oil. In particular, at the beginning of operation, the temperature of the carburetor 105 needs to reach the above temperature quickly,
A large amount of power was being applied temporarily.

This type of vapor combustion burner is
In reality, it is mainly applied to small household heaters that generate heat of several thousand kilocalories / hour at most.
It is not applied to large burners such as 10,000 to tens of thousands of calories / hour. Such a vaporizing burner
If it is applied to a large-sized cooker, a larger one must be used as the vaporizer, so that increase in power consumption for heating the vaporizer at the start of heating operation is inevitable. In addition, if multiple units are operated simultaneously, further power consumption is inevitable.

Further, the burner used in a small heater having a calorific value of several thousand kilocalories per hour means that the burner 105 itself has a heat capacity even if the burner 105 has a low temperature at the beginning of operation. In addition to being small in size, the temperature of the burner 105 rises very quickly because it is efficiently heated by the heat transfer from the flame or heat exchanger immediately after the start of combustion, so the vaporized gas supplied to the burner 102 is It is hardly cooled and reliquefied.
Even if it were to happen, the temperature of the burner 105 would immediately rise to a high temperature, so that it would quickly re-vaporize and there would be no particular problem.

However, when the burner is upsized for the above-mentioned large-sized cooker, the heat capacity of the burner itself becomes large.
The conditions for reliquefaction of vaporized gas deteriorate. In addition, the temperature of the object to be heated finally reaches 100 at the final stage of the cooking operation.
In the case of a rice cooker having a temperature of over ℃, the temperature of the burner rises very slowly because the flame temperature does not rise so much and the radiant heat from the object to be heated is not so large. Therefore, the risk of reliquefaction of the vaporized gas supplied into the burner increases. If liquefaction occurs and liquefaction proceeds without the burner temperature rising as it is, in the worst case, liquefied fuel will flow out of the burner, or incomplete combustion will cause odor. , A problem that will lead to a fire will occur.

An example of a rice cooker using liquid fuel as a heat source is also found in Japanese Patent Laid-Open No. 54-129171. The example described therein is a pot-shaped burner heated by an electric heater. In addition, it is a so-called two-fluid type combustion system in which liquid fuel atomized by a high-pressure blower and combustion air are supplied to perform combustion. However, this two-fluid burner has problems such as a complicated structure and the height of the burner itself must be large, and the flame shape is restricted to a ring shape. Therefore, there are problems that the uniform heating performance of the object to be heated is slightly difficult, that the noise of the blower is large, and that there is no definite factor for suppressing the generation of deodorant particularly when extinguishing a fire.

[0018]

In order to solve the above-mentioned problems, the present invention realizes a large-sized cooker for heating and cooking by burning liquid fuel stably and with low fuel consumption. When a large number of large cookers are combined to form a multiple cooker group system, and when multiple cookers in the group cooker perform heating and cooking operations, the power consumption according to the capacity (capacity) of the power supply device is consumed. Control the connection of the individual cookers to the power supply so that

To this end, the present invention relates to a burner for heating an object to be heated such as a rice cooker, a vaporizer incorporating an electric heater for a vaporizer for generating vaporized gas to be supplied to the burner, and the temperature of the vaporizer. A group cooker that combines a plurality of cookers configured by a liquid fuel supply device that supplies a predetermined amount of liquid fuel to the temperature detecting element for detecting and the vaporizer thereof, and an individual cooker in the group cooker A power supply unit that supplies electric power to the provided electric heater for vaporizer, and the electric heater for vaporizer of the appropriate number of cookers selected first from the group cooker are connected to the power supply unit, and the connection is also made. Based on the temperature information of the individual temperature detection elements of the first appropriate number of cookers that have been controlled, the connection to the power supply unit of the corresponding electric heater for the vaporizer is controlled, and after that control is executed. Is the second Based on the temperature information of the individual temperature detection elements of the newly connected second appropriate number of cookers while connecting the electric heaters for vaporizers of the multiple cookers selected for Controls the connection of the newly connected corresponding vaporization electric heater to the power supply unit, and performs a predetermined cooking operation in the first and second appropriate number of cookers respectively connected. A system consisting of a plurality of cookers is constituted by the liquid fuel supply device of the cooker and the control device that executes the control operation so as to stop the operation of the electric heater for the carburetor in order from the end of the above.

When the electric heater is attached not only to the vaporizer but also to the burner, the electric heater for vaporization is connected to the power supply unit based on the temperature information of the temperature detecting element for detecting the temperature of the vaporizer as described above. In addition to controlling the temperature of the burner, it also controls the connection of the electric heater for the burner to the power supply unit based on the temperature information of the temperature detection element that detects the temperature of the burner. Configure a system consisting of a group of cookers.

Further, a heating completion detecting element for detecting the completion of heating of the object to be heated is provided, and the cooking is controlled based on the signal of the heating completion detecting element.

[0022]

Since the present invention is configured as described above, when there is an instruction to start the heating operation, the control device is for the vaporizer of an appropriate number of cookers selected first from among the group cookers. The electric heater is connected to the power supply, and the corresponding electric heater for the vaporizer is connected to the power supply based on the temperature information of the individual temperature detection elements of the first appropriate number of cookers connected to the electric heater. Control to reduce the supply power by half, etc., and after the control is executed, the carburetor electric heaters of the second multiple newly selected cookers are connected to the heat source part and Based on the temperature information of the individual temperature sensing elements of the newly connected second appropriate number of cookers, control the connection to the power supply unit of the newly connected corresponding vaporization electric heater. Reduce the supply power by half, and Stop the operation of the liquid fuel supply device of the cooker and the electric heater for the carburetor in order from the one in which the predetermined cooking operation is completed among the first and second proper number of cookers connected to each other. To execute the control action.

Regarding the control of the electric heater attached to the burner, the burner electric heater is controlled so as to be disconnected from the power supply unit on the basis of the temperature information of the burner temperature detecting element as in the vaporizer electric heater. .

Further, when a heating completion detecting element for detecting the completion of heating of the object to be heated is provided, the liquid fuel supply device and the electric heater for the carburetor are heated based on the signal of the heating completion detecting element. The operation is stopped and the cooking is controlled.

[0025]

EXAMPLE An example of the present invention will be described below with reference to an example of a multi-rice cooker group system.

In FIGS. 1 to 5, 1 is a single rice cooker, 2 is a cabinet for storing the rice cooker 1 in and out, and 2-1 is an exhaust gas passage opening to the upper part of the back of the cabinet 2, for example. Reference numeral 3 is a door that opens and closes when setting the rice cooker 1 in the cabinet 2, and reference numeral 3-1 is a handle attached to the upper portion of the door 3. By the way, the door 3 is rotated and opened / closed by an operation of the handle 3-1 by a shaft (not shown) provided at a lower side portion thereof. Reference numeral 4 is a bottom plate of the cabinet 2, and 4-1 is an opening formed in the bottom plate 4, which is an inflow port into which secondary air for combustion flows. Reference numeral 5 is a panel attached to the side of each cabinet 2, and a light panel 5 for displaying the progress of rice cooking of the rice cooker 1 is provided in a part thereof.
1, a standby light 5-2, a rice cooking light 5-3, a Murashi light 5-4, and a cooking light 5-5 are sequentially arranged. 6 is a heated object, which is a rice cooker in this embodiment. Reference numeral 6-1 is a shuttle body as a container, 6-2 is a flange of the upper structure of the shuttle body 6-1 and 6-3 is a shuttle lid. Reference numeral 7 denotes a rail that is attached to the inner wall of the cabinet 2 and supports the flange 6-2 of the shuttle 6-1 so as to be movable back and forth, and 7-1 is attached to the rail 7 to allow the rolling movement of the shuttle flange 6-2. It's Laura. Reference numeral 8 denotes a heating completion detecting element which protrudes from the bottom of the cabinet 2 and is in thermal contact with the bottom of the pot main body 6-1 to detect the temperature of the pot bottom, particularly the completion of cooking rice, and is composed of a thermistor. Reference numeral 8-1 is a heat shield tube that protects the heating completion temperature detecting element 8 from being exposed to the flame of the burner. Reference numeral 9 is a Bunsen type burner, 9-1 is a burner body, 9-2 is a burner throat for introducing vaporized gas and primary air for combustion, 9-3 is a mixing pipe for mixing the vaporized gas and primary air which have flowed in, Reference numeral 9-4 is a flame port, and 9-5 is a temperature detecting element mounting portion.

Next, 10 is a vaporizer for vaporizing liquid fuel, 10-1 is an electric heater for the vaporizer, and 10 is a vaporizer.
Reference numeral -2 is a wire mesh wick provided on the outer peripheral portion of the electric heater, 10-3 is an outer cylinder of the vaporizer 10, and 10-4 is an outer cylinder 10.
-3 is a mounting portion of a temperature detecting element, which will be described later, formed in a part of -3, and 10-5 is an outlet of vaporized gas generated in the vaporizer 10. 11 is a unit for ejecting vaporized gas,
11-1 is a nozzle for ejecting the vaporized gas generated in the vaporizer 10 toward the burner throat 9-2. 11-2
a, 11-2b, and 11-2c are valve bodies that are located in the ejection unit 11 and function to control the flow of the gas and prevent clogging of the nozzle 11-1 with tar, and 11-2a is a valve body. A cleaning needle at the tip portion, 11-2b is a valve body central portion valve, and 11-2c is a plunger for driving the entire valve body. 11-3 is a spring for urging the plunger 11-2c, and 11-4 is a plunger 11-2c.
Is a solenoid coil for driving the.

Reference numeral 12 is a supply device for supplying the liquid fuel to the vaporizer 10 described above, and 12-1 is an oil leveler for controlling the liquid surface of the liquid fuel to a constant level. This oil leveler 12-
1 is a float 12-1a, an arm 12-1b, an inflow valve 12
-1c, inflow valve seat 12-1d, inflow filter 12-1
It is composed of e etc. And 12-1f is oil leveler 1
It is a liquid level controlled to be constant within 2-1. As a result, the liquid level is kept constant in the oil leveler regardless of the supply pressure of the fuel supplied from the oil tank (not shown). 12-2 is a pump that pumps up the fuel in the oil leveler 12-1 and discharges it toward the carburetor 10, 12-2
a is a filter for the liquid fuel inlet of the pump 12-2, 1
3 is an oil supply pipe connecting this oil leveler 12-1 and an oil tank (not shown), 14 is an oil supply pipe for sending the liquid fuel to the carburetor 10, and 15 is an oil supply pipe for preventing odor leakage at the end of combustion. It is a return gas pipe for returning the vaporized gas in the vaporizer 10 and the ejection unit 11 into the oil leveler 12-1 to be absorbed by the liquid fuel.

Reference numeral 16 is a spark plug. Reference numeral 17 is a safety device for judging the flame condition by a flame sensor, which is generally for judging the magnitude of flame ions.
Reference numeral 18 is a temperature detecting element attached to the temperature detecting element attaching portion 9-5 of the burner 9, 19 is an electric heater attached to the lower portion of the burner 9 for heating the burner, and 20 is a vaporizer temperature detecting element attaching portion 10-. There is a temperature detection element attached to No. 4.

Reference numeral 21 is a control device for controlling a plurality of rice cookers 1, 21-1 is a power source of the control device 21,
Reference numeral 21-2 is a power start switch for turning on / off the start of the power supply section, and 21-3 is a start switch for starting rice cooking. 21-4 is a ranking control panel, and 21-
5, 21-5, ... are order display windows for displaying the starting order of the rice cooking operation by lighting the numerical values.
-6, ... Are order determination switches for setting numerical values of the order in the order display window.

Reference numeral 22 is a group rice cooker composed of a plurality of rice cookers. Each rice cooker 1 has a device number,
,,,, are displayed. And 23 is a leg which supports the group cooker.

The embodiment of the present invention has the above-described structure. To cook rice, the sharpened rice and water are put in the pot 6-1 of each rice cooker 1 and stored in the cabinet 2. Close door 2. Next, the power supply start switch 21-2 of the power supply unit 21-1 of the control device 21 is turned on to start the power supply unit 21-1.

Now, if it is assumed that water and sharpened rice are put in all the pots 6-1 of the six rice cookers 1 and the door 2 is closed, the order display windows 21-of all the rice cookers ,. 5 is lit, and the numerical value "0" is first displayed in each window. Next, the rank determination switch 21-6 of the rice cooker 1 which should start rice cooking first is operated to change and set the display of "0" in the rank order window 21-5 to the display of "1". If the rice cooker you want to start cooking rice with is the numbered body first, operate the rank determination switch 21-6 at the position marked with the number on the rank control panel 21-4 to display the rank display window 21-5. That is, the setting is input so that "1" is displayed. The order determination switch 21-6 is an up / down counter switch for increasing / decreasing the numerical value. When the right end of the switch is pressed toward the right arrow side, the display of "0" in the order display window 21-5 is "1", "2", ... It will be changed in the order of "6".
In the present case, it is required to set the display of "1", so the setting operation is stopped when the display of "1" is performed. If the same switch 21-6 is pressed in the opposite direction to the left and the arrow pointing leftward, the display of "0" in the order display window 21-5 is changed to "6", "5", ... "1" in that order. Being done. And the remaining rice cookers are numbered ...
If you want to cook rice in the order of, the display of the order display window 21-5 at the position of the number is "2", the display of the order display window 21-5 at the position of the number is "3", and " “5” is displayed at the position of “4”, and “6” is displayed at the position of. Even when the cooked rice and the pot containing water are set in all rice cookers, there are times when it is not necessary to operate the rice cooker. In such a case, the display of the order display window of the corresponding rice cooker may be left as "0".

Next, the rice cooking operation will be described. In the following, first, the operation of the first rice cooker to the end of the operation will be described, and then the rice cooking operation is sequentially performed from the rice cooker to the rice cooker to the rice cooker. I will explain how they are taken over.

When the start switch 21-3 is pressed here, first, the electric heater 10-1 for the vaporizer and the electric heater 19 for the burner of the rice cooker having the rice cooker number in which "1" is set as the rice cook order are set. Connected to the power supply section 21-1,
Energization is started. The power consumption in this case changes as shown in FIG.

Then, the vaporizer 10 is heated to the evaporation temperature of kerosene (for example, 200 to 280 ° C.), and the burner 9 is heated to a lower temperature (for example, 100 ° C.). The respective temperatures are detected by a temperature detecting element 20 attached to the carburetor and a temperature detecting element 18 attached to the burner, and when predetermined temperatures are detected, the electric heater 19 for the burner is turned off, The electric heater 10-1 for the carburetor is reduced in electric power required to maintain the evaporation temperature of kerosene and the energization control is continued. As seen in FIG. At the same time, the energization of the pump 12-2 and the solenoid coil 11-4 is started, the kerosene is pumped up from the oil leveler 12 and sent to the vaporizer 10, and the kerosene is immediately wicked.
The gas flows into the section 0-2, is heated by the carburetor electric heater 10-1, becomes vaporized gas, and is delivered to the ejection unit 11. At this time, the plunger 11-2c is driven, the cleaning needle 11-2a is pulled out from the nozzle 11-1, and the nozzle 11-1 is opened, so that the ejection of vaporized gas is started. Then, the vaporized gas sucks out a part of the combustion air by its own ejection, and the mixing pipe 9-3 of the burner.
Leading to. The temperature of the vaporized gas is rapidly lowered after being ejected from the nozzle 11-1, but the temperature is further lowered as it is mixed with air and further progresses in the burner. However, since the temperature of the burner 9 itself is raised by the electric heater 19, the vaporized gas does not condense there.

When a mixture of vaporized gas and air is ejected from the flame port 9-4 of the burner, the ignition device 16 has started the ignition operation at this point, so that combustion flame is generated. When the flame sensor 17 detects a predetermined ion current while the combustion has continued for a certain period of time, it means that the ignition operation is normally performed, and the ignition operation ends.

Thereafter, the burner 9 continues to rise in temperature due to heat transfer from the flame, and continues combustion without causing liquefaction of the vaporized gas. Even if there is some liquefied fuel in the burner 9 at this point, re-evaporation is promoted as the combustion progresses, so abnormal combustion does not develop.

Thus, although the heating control temperature of the burner 9 is lower than the evaporation temperature of the liquid fuel, it hardly affects the reliquefaction of the gas. Even if a small amount of liquefaction appears, revaporization is promoted during combustion.

During this time, the controller 21 controls the temperature detecting element 20.
The electric heater 10 for the vaporizer is controlled to the evaporation temperature of the liquid fuel based on the above information.

When the cooked rice in the pot 6-1 progresses and the heating completion detection element 8 at the pot bottom is detected to reach the end temperature of the cooked rice heating, the pump 12-2, the carburetor 10 and the ejection unit 11 are supplied to the pump 12-2. The power supply is turned off and the combustion operation (rice cooking operation) is stopped. This pump 12-2, vaporizer 1
0, the jet unit 11 and the pump 12-2 are turned off, so that the valve body 11-2 of the jet unit is spring 11-3.
Slides toward the nozzle 11-1 side, and the tip of the cleaning needle 11-
2a closes the nozzle 11-1 and at the same time gas pipe 15
Since the connection part of is opened, the vaporized gas in the vaporizer 10 and the ejection unit 11 is collected in the oil leveler 12-1 and absorbed by the liquid fuel. Thereby vaporizer 1
0, jet unit 11 or oil leveler 12-1
It is possible to prevent the odor from being emitted to the outside.

On the other hand, the rice cooking light 5 of the light panel 5-1
-3 is turned off, and at the same time, the Murashi light 5-4 is turned on. When the Murashi is carried out for a certain period of time (generally around 15 minutes), the Murashi light 5-4 goes out and instead the cooked light 5-5 lights up and a buzzer (not shown) sounds at the same time. , Notify the completion of cooking of the rice cooker of the number.

As already shown in FIG. 6, a large amount of electric power is required for the rapid heating of the carburetor 10 and the burner 9 before the initial ignition at the start of operation. However, after both the vaporizer 10 and the burner 9 have reached a predetermined temperature, the burner electric heater 19 is de-energized, and the vaporizer electric heater 10-1 has an electric power sufficient to vaporize the liquid fuel. Since the power consumption is controlled to, the required power amount sharply decreases. In FIG. 6, the solenoid coil 11-4,
The electric power of the controller such as the pump 12-2, various lights, and the microcomputer is very small compared to the electric heater for carburetor 10-1 and the electric heater for burner 19, so that the illustration thereof is omitted.

Next, the operation of the rice cooker with the number "2" set in the order display window 21-5 will be described. This second-order rice cooker reserved for operation maintains the standby state with the standby lamp 5-2 turned on from the start of rice cooker operation to the start of rice cooker operation. After the electric heating heater 19 for the vaporizer is turned off and the energization control of the electric heating heater 10-1 for the vaporizer is started, the electric heater for burner and the electric heater for vaporizer are connected to the power source section, and the operation is started for cooking rice. . The state of power consumption of the rice cooker alone in that case is as shown in FIG. 6 already described, and the state of power consumption at this point when the operation of this rice cooker is added to the operation of the rice cooker is as shown in FIG. 7. become.

The operation of this rice cooker is similar to the operation of the rice cooker described above, and the control device 21 executes the same control as that of the rice cooker. Then, the electric heater 19 for the burner of the rice cooker and the electric heater 10-1 for the vaporizer
In consideration of the start of the energization control of the rice cooker, the electric heater for burner and the electric heater for vaporizer of the rice cooker with the number set as the next rank "3" are connected to the power supply unit 21-1, and the rice cooking operation is started. .

Thus, the rice cooking operation is started in accordance with the order thus set, and the rice cooking control is continued. Since the amount of rice for each rice cooker should be adjusted appropriately, the rice cooking operation is completed in the order of increasing rice amount. The control device 21 can also monitor such a control result as necessary, and determine whether or not to start the subsequent rice cooking operation in view of the relationship with the capacity of the power supply unit. I'll leave that out here for now.

As for the timing of starting the operation of the rice cookers of the succeeding ranks, in addition to the time after the vaporizer 10 and the burner 19 of the preceding rice cooker reach the set temperature as described above, It may be performed after the time when the set temperature is reached, or may be performed after the time when the ignition operation is started. Also, the frame sensor 17
It may be executed after the time when the normal flame is confirmed, or when the power consumption and the current consumption are directly detected and they are reduced to the specified value or less.

In the above example, the rice cookers are started one by one. Next, the case of starting a plurality of units will be described.

First, an example in which six rice cookers are divided into three groups of two rice cookers and two rice cookers are simultaneously operated for rice cooking will be described.

In this case, the capacity of the power supply unit must be increased as compared with the case of cooking rice one by one, but there are many advantages such as the time required for cooking can be shortened.

FIG. 8 shows the state of power consumption in that case. In order to perform the control in such a pattern, one of the rank display windows 21-5, 21-5 is operated by operating the rank determination switches 21-6, 21-6 of the number and the numbered rice cooker. The input operation is performed so that the numerical value "1" is also displayed. Similarly, the rank determination switches 21-6, 21- are arranged so that the rank numerical value "2" is displayed in both the rank display windows of the rice cooker of the number selected as the rice cooker of the rank "2" and the rice cooker of the number. Operate 6.
Finally, operate the order determination switches 21-6, 21-6 so that the numerical value "3" is displayed in the display windows 21-5, 21-5 of the rice cooker of the number and the number selected as the order "3". .

When the start switch 21-3 is operated,
The control device 21 first connects the burner electric heater 19 and the carburetor electric heater 10-1 of each of the first two rice cooker groups to the power supply unit 21-1, and the burner electric heater and the carburetor electric heater are connected. When the power supply to the heater is controlled, the second rice cooker group is newly added to the power supply unit 21-1.
Connect to. The rice cooker group and the rice cooker group subsequent to the rice cooker group are also controlled in the same manner as when the rice cooker group is taken over from the first rice cooker to the second rice cooker. Then, the rice cooking operation is sequentially ended from the rice cooker which has completed the rice cooking.

FIG. 9 shows a state of power consumption when the rice cooker group, the rice cooker group is operated subsequently, and the rice cooker is finally operated. The rice cooking operation with such a pattern is set on the assumption that the rice cooked in the last rice cooker is used for replacement.

In the apparatus shown in FIG. 10, the preceding rice cooker group, then the rice cooker group, and then the rice cooker group are connected all at once to the power supply unit because of the capability of the power supply unit. Since it is difficult to connect the rice cooker and the rice cooker at the end, the power consumption is shown as an example.

As described above, depending on the capability of the power supply unit, there is a case where the rice cooking operation in the rear order is limited and the simultaneous starting of a plurality of units is not suitable. The example of FIG. 10 is a correspondence example in such a case.

On the other hand, depending on the capacity of the power supply unit, it is possible to further increase the number of simultaneous rice cooking operations. Even in that case, the control circuit connects the electric heater for the burner and the heater for the carburetor of the cooker group selected first to the power supply unit, and the respective heating heaters according to the temperature information detected by each temperature detection element. Control, and after that, the burner electric heater and vaporizer heater of the second cooker group were connected to the power supply unit to perform the same control, and the cooked rice was completed based on the information of the heating completion detection element. It is as already explained that the rice cooking operation is ended in sequence.

As described above, an example in which only a plurality of rice cookers 1 are combined is described as an example of a group cooker. However, the group cooker is not limited to the rice cooker, but may be a brazing pan, soup kettle, or grilled food. It goes without saying that it may be a container or the like, or a combination thereof. In any of these cases, by sequentially starting the operation of each cooking device by an appropriate number, it is possible to effectively and safely use the power supply unit having a limited capacity.

Further, since the built-in burner 9 of the present invention is of the Bunsen type, the structure of the burner 9 is small, and the flame can be optimized to match the object to be heated and the noise is reduced as in the gas burner. Can be realized.

[0059]

As described above, the multi-cooker group system of the present invention, which is composed of a plurality of cookers, uses the Bunsen-type burner for vaporizing and burning liquid fuel as a heat source, so that the operation and maintenance cost can be reduced. Is inexpensive, and it is possible to start an appropriate number of cooker groups while avoiding an excessive increase in power consumption by shifting the start-up point of the cooker, and starting the cooker group of the first rank. When a large amount of electric power consumed by the electric heater later becomes unnecessary, a suitable number of cooker groups in the next rank are newly connected to the power supply unit, so a power supply unit (electrical equipment) of relatively small capacity can be used. It has the effect of cooking.

Further, if the multi-cooker group system is mounted on a trailer or the like, a portable feeding facility is realized, and in that case, there is an effect that the power source section (generator) to be prepared can be made compact and lightweight.

[Brief description of drawings]

FIG. 1 is a front view of a group cooker including six rice cookers according to an embodiment of the present invention.

FIG. 2 is an enlarged explanatory diagram of a light panel portion of the rice cooker in FIG.

FIG. 3 is an enlarged explanatory diagram of a control device of the rice cooker in FIG.

FIG. 4 is a vertical sectional structural view of one rice cooker in FIG.

5 is an enlarged explanatory view of a combustion-related device in FIG.

FIG. 6 is an explanatory diagram illustrating a change in power consumption of one rice cooker according to an embodiment.

FIG. 7 is an explanatory diagram illustrating changes in power consumption when starting the group rice cookers of one embodiment one by one.

FIG. 8 is an explanatory diagram illustrating a change in power consumption when two group rice cookers according to one embodiment are started.

FIG. 9 is an explanatory diagram illustrating a change in power consumption when starting two group rice cookers, two group rice cookers, and one group rice cooker sequentially according to one embodiment.

FIG. 10: Taking into consideration the limit of the power supply capacity of the power supply unit in one embodiment, the group rice cookers are started in the order of two, two, one, and one in order to cook rice from six rice cookers. It is explanatory drawing explaining the change of the power consumption at the time of doing.

FIG. 11 is a partially sectional front view of a conventional gas burner type commercial rice cooker.

FIG. 12 is an explanatory view of a conventional liquid fuel vaporization type burner.

[Explanation of symbols]

 1 Rice Cooker 2 Cabinet 5-1 Light Panel 5-2 Standby Light 5-3 Rice Cooking Light 5-4 Murashi Light 5-5 Cooked Light 6 Pot (Heating Target) 8 Heating Completion Detection Element 9 Burner 9-1 Burner Main body 9-3 Mixing tube 10 Vaporizer 10-1 Vaporizer electric heater 11 Ejection unit 12 Liquid fuel supply device 12-1 Oil leveler 12-2 Pump 18 Burner temperature detecting element 19 Burner electric heater 20 Vaporizer temperature detecting element 21 control device 21-1 power supply section 21-4 rank control device 21-5 rank display window 21-6 rank determination switch 22 group cooker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaaki Hashimoto, Inventor, 3-3 Shinjuyoji, Kashiwa-shi, Chiba, Ltd. 1 In Hirate Co., Ltd. Hometec (72) Mutshiko Takahashi, Incubator, Shinjuyomi, Kashiwa-shi, Chiba 1, 1 Home Tech (72) Inventor Tsuyoshi Yokomori 603 Kitsudachi-cho, Tsuchiura-shi, Ibaraki Hiritsu Works Co., Ltd. Tsuchiura Plant (72) Inventor Tsuyoshi Okamoto 603 Jinmachi-cho, Tsuchiura-shi, Ibaraki Hitate Works Tsuchiura Plant ( 72) Inventor Osamu Akimoto 603 Jinritsu-cho, Tsuchiura-shi, Ibaraki Hiritsu Plant Co., Ltd. Tsuchiura factory

Claims (23)

[Claims] 1. A vaporizer (10) in which a burner (9) for heating an object to be heated (6) and a vaporizer electric heater (10-1) for generating vaporized gas supplied to the burner are incorporated. , Group cooking in which a plurality of cookers constituted by a temperature detecting element (20) for detecting the temperature of the vaporizer and a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer are combined (22), a power supply section (21-1) for supplying electric power to the electric heater for the vaporizer of each cooker in the group cooker, and the first selected from the group cooker. The carburetor electric heaters of a suitable number of cookers are connected to the power supply unit, and the vaporizer electric heaters are based on the temperature information of the temperature detection elements of the first suitable number of cookers connected to the power supply unit. Control the connection of the After the control is executed, the vaporizer electric heater of a suitable number of second newly selected cookers is connected to the power source unit and the newly connected second suitable number. A controller for controlling the connection of the newly connected carburetor electric heater to the power supply unit based on the temperature information of the temperature detection element of the cooking device of the table, and the connected first and second suitable heaters, respectively. A control device (21) for executing a control operation so as to stop the operations of the liquid fuel supply device and the electric heater for the vaporizer of the cooker in order from the one in which a predetermined cooking operation is completed among the cookers. A multi-cooker group system characterized by being configured with. 2. The control of the connection of the electric heater for the carburetor to the power supply unit, which is performed based on the temperature information of the detection elements for the temperature for the carburetor of an appropriate number of cooking devices among the controls performed by the control device. 2. The multi-cooker group system according to claim 1, wherein is a control for lowering the power supplied to the vaporizer electric heater when the temperature detecting element detects a predetermined temperature. 3. A vaporizer (1) incorporating a burner (9) for heating an object to be heated and a vaporizer electric heater (10-1) for generating vaporized gas supplied to the burner.
0), a temperature detecting element (2 for detecting the temperature of this vaporizer
0), a plurality of cookers including a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer and a heating completion detecting element (8) for detecting completion of heating of the object to be heated. A group cooking device (22) combined with each other, a power source section (21-1) for supplying electric power to the electric heater for the vaporizer of each cooking device in the group cooking device, and a group cooking device Based on the temperature information of the temperature detecting element of the vaporizer electric heater for the vaporizer of the proper number of cookers selected first and connected to the power supply unit And controlling the connection of the electric heater for the vaporizer to the power supply unit, and after the control is executed, the electric heater for the vaporizer of the appropriate number of second newly selected cookers is connected to the power supply unit. To the newly connected first Controlling the connection of the newly connected carburetor electric heater to the power supply unit based on the temperature information of the temperature detection elements of the appropriate number of the thirty cookers, and the connected first and second respectively. Control to stop the operations of the liquid fuel supply device and the vaporizer electric heater of the cooker in order from the one in which the completion of heating is detected by the heating completion detecting element in the second appropriate number of cookers A multi-cooker group system comprising a control device (21) for performing an operation. 4. The control of the connection of the electric heater for the carburetor to the power supply unit, which is performed based on the temperature information of the temperature detecting elements for the carburetor of an appropriate number of cooking devices among the controls performed by the control device. 4. The multi-cooker group system according to claim 3, wherein is a control for lowering the power supplied to the vaporizer electric heater when the temperature detecting element detects a predetermined temperature. 5. A burner (9) for heating an object to be heated, an electric heater for a burner (19) for heating the burner, a temperature detection element (18) for detecting the temperature of the burner, and vaporization supplied to the burner. A vaporizer (10) incorporating a vaporizer electric heater (10-1) for generating gas, a temperature detection element (20) for detecting the temperature of the vaporizer, and a predetermined amount of liquid fuel to the vaporizer. A group cooker (22) in which a plurality of cookers configured by a liquid fuel supply device (12) for supplying and a heating completion detecting element (8) for detecting completion of heating of the object to be heated are combined, A power source unit (21-1) for supplying electric power to the electric heater for the burner and the electric heater for the vaporizer of the cooker in the group cooker, and an appropriate number of units selected first from the group cooker. Electric heating heater for the burner of the cooking device Based on the temperature information of the temperature detecting element for the burner and the temperature detecting element for the vaporizer of the first appropriate number of cookers connected to the power source unit and the electric heater for the vaporizer Control the connection between the electric heater for the burner and the electric heater for the carburetor to the power supply unit, and after the control is executed, the burner for the appropriate number of secondly selected cookers is newly added. A temperature detecting element for the burner and a temperature detecting element for the carburetor of the second appropriate number of newly connected cookers that connect the electric heater and the electric heater for the vaporizer to the power source unit. Based on information, the newly connected burner electric heater and the vaporizer electric heater are controlled to be connected to the power source unit, and first and second appropriate number of cookers connected respectively. A control device (21) for executing a control operation so as to stop the operations of the liquid fuel supply device and the vaporizer electric heater of the cooking device in order from the one in which the completion of heating is detected by the heating completion detecting element; A multi-cooker group system characterized by being configured with. 6. An electric heater for the burner and a vaporizer for the burner, which are performed based on temperature information of the temperature detection element for the burner of the cooker selected from the controls performed by the control device and the temperature detection element for the vaporizer. The control of the connection of the electric heater to the power supply section means that when the temperature detecting element for the burner detects a predetermined temperature, the power supply to the electric heater for the burner is stopped and the temperature detecting element for the carburetor is operated. The multi-cooker group system according to claim 5, wherein the control is performed to reduce the power supplied to the vaporizer electric heater when a predetermined temperature is detected. 7. The control performed by the control device to stop the operations of the liquid fuel supply device and the carburetor electric heater includes taking in temperature information of the object to be heated detected by the heating completion detecting element. The multi-cooker group system according to claim 5, wherein the multi-cooker group system is performed. 8. A carburetor (1) incorporating a burner (9) for heating an object to be heated and a carburetor electric heater (10-1) for generating vaporized gas supplied to the burner.
0), a temperature detecting element (2 for detecting the temperature of this vaporizer
0) and a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer, and a group cooker (22) in which a plurality of cookers are combined, and each of the group cookers. And a power source section (21-1) for supplying electric power to the vaporizer electric heater of the cooker of FIG. 1, and the vaporizer electric heater of the first cooker of the group cooker to the power source section. Based on the temperature information of the temperature detecting element of the connected first cooking device, the connection of the electric heater for the carburetor to the power supply unit is controlled, and after the control is executed, the next next The vaporizer newly connected based on the temperature information of the temperature detecting element of the second cooker that is connected to the electric heater for the vaporizer of the second cooker and is connected to the power supply unit Of the electric heater The liquid fuel supply device of the cooker and the electric heat for the vaporizer, which control the connection to the source part and which are connected in order from the first and second cookers to which the predetermined cooking operation is completed, respectively. A multi-cooker group system, comprising: a control device (21) that executes a control operation to stop the operation of the heater. 9. The control of the connection of the electric heater for the vaporizer to the power supply unit, which is performed based on the temperature information of the temperature detecting element of each cooking device, among the controls performed by the control device. 9. The multi-cooker group system according to claim 8, wherein the control is a control for lowering the power supplied to the vaporizer electric heater when a predetermined temperature is detected. 10. A carburetor (1) incorporating a burner (9) for heating an object to be heated and a carburetor electric heater (10-1) for generating vaporized gas supplied to the burner.
0), a temperature detecting element (2 for detecting the temperature of this vaporizer
0), a plurality of cookers including a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer and a heating completion detecting element (8) for detecting completion of heating of the object to be heated. A group cooker (22) in which the above are combined, a power source section (21-1) for supplying electric power to the electric heater for the vaporizer of each cooker in the group cooker, and a group cooker in the group cooker. The vaporizer electric heater of the first cooker is connected to the power supply unit and is connected to the power supply unit of the vaporizer electric heater based on the temperature information of the temperature detection element of the connected first cooker. In addition to controlling the connection of the above, after the control is executed, the electric heater for the carburetor of the next second cooking device is newly connected to the power source unit and the newly connected second cooking device is connected. Temperature of the temperature detecting element of the vessel Based on the information to control the connection of the newly connected carburetor electric heater to the power supply unit and to heat by the heating completion detecting element in the first and second cookers respectively connected. A plurality of control units (21) for executing control operations so as to stop the operations of the liquid fuel supply device and the vaporizer electric heater of the cooking device in order from the completion detected. Cooker group system. 11. The control of the connection of the electric heater for the vaporizer to the power supply unit, which is performed based on the temperature information of the temperature detecting element of each cooking device, among the controls performed by the control device. 11. The multi-cooker group system according to claim 10, wherein is a control for lowering the power supplied to the vaporizer electric heater when a predetermined temperature is detected. 12. The control device fetches temperature information of the object to be heated detected by the heating completion detecting element and performs a control operation for stopping the operations of the liquid fuel supply device and the carburetor electric heater. The multi-cooker group system according to claim 10, wherein: 13. A burner (9) for heating an object to be heated, an electric heater for a burner (19) for heating the burner, a temperature detecting element (18) for detecting the temperature of the burner, and vaporization supplied to the burner. A vaporizer (10) incorporating a vaporizer electric heater (10-1) for generating gas, a temperature detection element (20) for detecting the temperature of the vaporizer, and a predetermined amount of liquid fuel to the vaporizer. A group cooker (22) in which a plurality of cookers configured by a liquid fuel supply device (12) for supplying and a heating completion detecting element (8) for detecting completion of heating of the object to be heated are combined, A power supply unit (21-1) for supplying electric power to the burner electric heater and the vaporizer electric heater of each cooker in the group cooker;
Then, the burner electric heater and the vaporizer electric heater of the first cooker in the group cooker are connected to the power source unit, and the temperature detection for the burner of the first cooker connected thereto is performed. The connection between the electric heater for the burner and the electric heater for the carburetor to the power supply unit is controlled based on the temperature information of the element and the temperature detection element for the carburetor, and after the control is executed, the following new The burner temperature detecting element for the burner of the second cooker and the temperature for the vaporizer of the second cooker that are connected to the electric heater for the burner of the second cooker and the electric heater for the vaporizer are connected to the power supply unit The first connected to control the connection of the newly connected burner electric heater and the carburetor electric heater to the power supply unit based on the temperature information of the detection element And a control operation for stopping the operation of the liquid fuel supply device and the vaporizer electric heater of the cooking device in order from the one in which the completion of heating is detected by the heating completion detecting element in the second cooking device. A multi-cooker group system, comprising: a controller (21) for executing. 14. An electric heater for a burner and an electric heat for a carburetor, which are performed based on temperature information of a temperature detecting element for a burner of an individual cooking device and temperature information of a temperature detecting element for a carburetor among the controls performed by the control device. The control of the connection of the heater to the power source section means that when the temperature detecting element for the burner detects a predetermined temperature, the supply of electric power to the electric heater for the burner is stopped and the temperature detecting element for the carburetor is operated. 14. The multi-cooker group system according to claim 13, wherein the control is a control for reducing the electric power supplied to the vaporizer electric heater when a predetermined temperature is detected. 15. The control device takes in temperature information of the object to be heated detected by the heating completion detecting element and performs a control operation for stopping the operations of the liquid fuel supply device and the carburetor electric heater. The multi-cooker group system according to claim 13, wherein: 16. A vaporizer (1) incorporating a burner (9) for heating an object to be heated and a vaporizer electric heater (10-1) for generating vaporized gas supplied to the burner.
0), a temperature detecting element (2 for detecting the temperature of this vaporizer
0) and a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer, and a group cooker (22) in which a plurality of cookers are combined, and each of the group cookers. A power source section (21-1) for supplying electric power to the vaporizer electric heater of the cooking device of FIG. 1, and a parallel connection of the vaporizer electric heaters of the first plurality of cooking devices in the group cooking device. In addition to controlling the connection to the power supply unit of the carburetor electric heaters connected in parallel based on the temperature information of the temperature detection elements of the first plurality of cookers connected to the power supply unit and that After the control is executed, the parallel connection of the electric heaters for the carburetor of each of the next second plurality of cookers is newly connected to the power source unit and the newly connected second plurality of cookers are connected. Individual temperature of the cooker in Controls the connection of the newly connected carburetor electric heater to the power supply unit on the basis of the temperature information of the output element, and predetermined among the first and second plurality of cookers respectively connected. A plurality of control devices (21) that execute control operations to stop the operations of the liquid fuel supply device and the vaporizer electric heater of the cooker in order from the end of the cooking operation. Cooker group system. 17. The control of the connection of the electric heater for the vaporizer to the power supply unit based on the temperature information of the individual temperature detecting elements of the plurality of cooking devices among the controls performed by the control device. 17. The multi-cooker group system according to claim 16, wherein is a control for reducing the power supplied to each of the vaporizer electric heaters when a predetermined temperature is detected. 18. A vaporizer (1) in which a burner (9) for heating an object to be heated and a vaporizer electric heater (10-1) for generating vaporized gas supplied to the burner are incorporated.
0), a temperature detecting element (2 for detecting the temperature of this vaporizer
0), a plurality of cookers including a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer and a heating completion detecting element (8) for detecting completion of heating of the object to be heated. A group cooker (22) in which the above are combined, a power source section (21-1) for supplying electric power to the electric heater for the vaporizer of each cooker in the group cooker, and a group cooker in the group cooker. The parallel connection of the electric heaters for the vaporizer of each of the first plurality of cookers is connected to the power source unit, and the parallel connection is performed based on the temperature information of the temperature detection elements of the first plurality of cookers connected to each other. In addition to controlling the connection of the connected electric heater for the vaporizer to the power source unit, after the control is executed, the parallel connection of the electric heater for the vaporizer of each of the next second plurality of cookers is performed. While connecting to the power supply Control the connection of the newly connected carburetor electric heater to the power supply unit based on the temperature information of the individual temperature detection elements of the newly connected second plurality of cookers, and connect each of them. Control to stop the operation of the liquid fuel supply device and the vaporizer electric heater from the one in which the heating completion is detected by the heating completion detecting element among the first and second plurality of cookers A multi-cooker group system comprising a control device (21) for performing an operation. 19. Based on temperature information of temperature detecting elements of a plurality of cooking devices among controls performed by the control device, the temperature detecting element controls the connection of the electric heater for the vaporizer to the power supply unit. The multi-cooker group system according to claim 18, wherein the control is performed to reduce the power supplied to the electric heater for the vaporizer when the temperature is detected. 20. The control device fetches temperature information of the object to be heated detected by the heating completion detecting element and performs a control operation for stopping the operations of the liquid fuel supply device and the carburetor electric heater. 19. The multi-cooker group system according to claim 18, wherein: 21. A burner (9) for heating an object to be heated, an electric heater for burner (19) for heating the burner, a temperature detecting element (18) for detecting the temperature of the burner, and vaporization supplied to the burner. A vaporizer (10) incorporating a vaporizer electric heater (10-1) for generating gas,
A temperature detecting element (20) for detecting the temperature of the vaporizer, a liquid fuel supply device (12) for supplying a predetermined amount of liquid fuel to the vaporizer, and a heating completion detecting element for detecting completion of heating of the object to be heated. A group cooker (22) in which a plurality of cookers constituted by (8) are combined, and electric power is supplied to the burner electric heater and the vaporizer electric heater of each cooker in the group cooker. Power supply unit (21-1)
And, connecting the electric heater for the burner and the electric heater for the carburetor of each of the first plurality of cookers in the group cooker to the power supply unit and the first plurality of cooks connected to each other. The burner temperature detecting element and the vaporizer temperature detecting element based on the temperature information of the temperature information of the burner electric heater and the vaporizer electric heater to control the connection to the power supply unit and the control is executed. After that, the burner electric heater and the carburetor electric heater of each of the following second plurality of cookers are newly connected to the power source unit, and the newly connected second plurality of cookers are connected. The burner electric heater and the power source unit of the vaporizer electric heater newly connected based on the temperature information of the individual burner temperature detecting elements and the vaporizer temperature detecting element. Of the first and second plurality of cookers that are connected to each other and are connected to each other, and the liquid fuel supply device of the cooker is sequentially detected from the one in which the completion of heating is detected by the heating completion detecting element. And a control device (21) for executing a control operation to stop the operation of the electric heater for the vaporizer. 22. An electric heater for a burner and an electric heat for a carburetor, which are performed based on temperature information of a temperature detecting element for a burner of each cooking device and temperature information of a temperature detecting element for a carburetor among the controls performed by the control device. The control of the connection of the heater to the power source section means that when the temperature detecting element for the burner detects a predetermined temperature, the power supply to the electrothermal heater for the burner is stopped and the temperature detecting element for the carburetor is predetermined. 22. The multi-cooker group system according to claim 21, wherein the control is performed to reduce the power supplied to the electric heater for the carburetor when the temperature of the cooker is detected. 23. The control device takes in temperature information of the object to be heated detected by the heating completion detecting element and performs a control operation for stopping the operations of the liquid fuel supply device and the carburetor electric heater. The multi-cooker group system according to claim 21, wherein: