JPH0131142Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to heating tanks such as fryers equipped with two or more heating tanks. It is possible to switch the heating element and maintain it at each set temperature.
Related to heating tanks used in fryers, udon noodle boilers, boiling sterilizers, etc.

(Prior Art) Conventionally, this type of commercial fryer and the like have different temperatures depending on the type of non-heated material, so it has been necessary to use them appropriately. Therefore, two or more heating tanks are provided, each with a separate thermostat for controlling the heating element, and each heating element is controlled by:
Each heating tank was independent. Therefore, during use, each heating tank must be operated individually, which is inconvenient to handle and increases the cost of wiring equipment and the like. By the way, as a result of investigating the ratio of energization and stop time to the heating element required to maintain the set temperature for each heating tank, for example,
When maintaining the temperature at 180°C, the time ratio between energizing the heating element and stopping it is 1 to 4. This means that when maintaining the temperature at a low temperature, the energizing time to the heating element is short and the stopping time is very short. It turned out to be a long time. Therefore, there was a drawback that the wiring equipment for each heating tank was not utilized efficiently.

(Problem to be Solved by the Invention) Therefore, the present invention solves the problem that the heating element power supply control circuit of each heating tank of a fryer with two or more tanks is controlled independently. The number of duplicated electronic parts increases, making it impossible to keep costs down. On the other hand, since each heating tank was controlled individually, it was difficult to use during busy periods. The present invention has been improved to eliminate these drawbacks.

(Means for Solving the Problem) The present invention is a device such as a fryer that is integrally equipped with at least two or more heating tanks, in which the temperature inside the heating tank is detected for each of the heating tanks, and the temperature of the heating tank is detected. A thermostat equipped with a micro switch that cuts off the power applied to the heating tank is installed in each heating tank, and the thermostat is set to an appropriate operating temperature for each heating tank, so that one thermostat operates. The system is configured so that the power supply is sequentially switched and connected to the heating elements of other heating tanks, and a select switch is installed to switch the power supply that is forcibly applied to the heating elements to other sources, allowing selection. This is a heating tank for fryers, etc., which is characterized by:

(Function) Therefore, in the present invention, only one heating element in the heating tank is connected to the power supply at all times, and when the thermostat is activated due to a temperature rise in the heating tank,
The power supply circuit is switched to the heating element of another heating tank by the operation of a microswitch that the thermostat is equipped with and performs interlocking switching. When the temperature inside the heating tank rises to a set temperature by the heating element in the other heating tank, the power circuit is switched to the heating element in the other heating tank, similar to the operation of the thermostat.
In this case, if the second switching to another heating tank is connected to the first heating tank mentioned above, the heating tank will change to the second heating tank.
It becomes a power supply switching circuit when In addition, the power supply switching circuit is equipped with a select switch that can forcibly switch the power supply circuit to any one of the heating tanks. This is when changing the temperature setting of each heating tank.
In addition, for ease of use, the heating tank is located at a specific location.
This is for convenience when you want to use it in priority over others.

(Example) An example of the heating tank of the present invention, such as a fryer, will be described in more detail with reference to the drawings. FIG. 1 is a perspective view of the fryer main body 1. Two heating tanks 2 and 3 are integrally formed side by side in the shape of an inverted truncated pyramid, and are arranged at the upper end of the fryer main body 1. Inside the heating element 3, heating elements 4 and 5 (the heating element is divided into several parts) are arranged horizontally and in parallel. Reference numerals 8 and 9 denote heat-sensitive controllers, which are units containing thermostats 6 and 7 and microswitches 14 and 15, and are installed in the heating tank. 10 is a select switch which can forcibly switch which of the heating tanks 2 and 3 will be used first.

FIG. 2 shows a power supply control circuit for the fryer main body 1 in which the first and second heating tanks 2 and 3 are installed. 1st
The heating tank 2 has a circuit including a heating element 4, a thermostat 6, and a microswitch 14 having one circuit and two contacts that are switched by mechanical pressure when the thermostat is operated at a set temperature. The second heating tank 3 has a circuit including a heating element 5, a thermostat 7, and a microswitch 15 having one circuit and two contacts that switches by mechanical pressure when the thermostat operates at a set temperature. .
The select switch 10 has a movable contact 13 and a contact 1.
1 and 12, and when the contact is on the contact 11 side, a power supply circuit is connected to the heating body 4. When the contact is switched to the contact 12, the power supply circuit is connected to the heating body 5.

Next, the operation of the circuit will be explained. When the temperature of the first heating tank 2 is below the set temperature, the thermostat 6 and the microswitch 14 are inoperative. Therefore, the movable contact 13 of the select switch 10, the contact 11, and the micro switch 14 are connected from the power supply terminal 22.
It is connected to the heating element 4 and the power supply terminal 23 via the movable contact 17, the contact 16, and the thermostat 6, and a current flows therethrough.

When selecting the second heating tank, drawing number 22,1
3, 12, 20, 19, 7, 5, and 23, and a current flows through them.

Subsequently, the heating elements 4 of the first and second heating tanks 2 and 3 are heated.
The switching of the power supply circuit from the heating element 5 to the heating element 5 will be explained.

The first heating tank 2 is selected with the sector switch 1 and current is applied to the heating element 4. When the temperature inside the tank reaches the set temperature, the thermostat 6 is activated to cut off the current and the micro switch 14 is turned off. When pressed, the movable contact 17 switches from the contact 16 to the contact 18. Since the contact 18 is connected to the movable contact 20 of the micro switch 15 of the second heating tank 3, when the temperature inside the second heating tank 3 is lower than the set temperature, the thermostat 7 and the micro switch 14 are connected.
does not operate, current flows through the heating element 5.

Next, when the temperature inside the second heating tank 3 reaches the set temperature, the thermostat 7 is activated to cut off the current, and the micro switch 15 is mechanically pressed so that the movable contact 20 closes the contact 19. From contact 21
Switch to . Since the contact 21 is connected to the movable contact 17 of the microswitch 14 of the first heating tank 2, the current to the heating body 4 is interrupted depending on the internal temperature of the first heating tank 2.

With this configuration, for example, no matter which setting state the select switch contacts 11 and 12 are in, when the temperature inside each heating tank reaches the set temperature, the temperature in the other heating tank will be automatically changed. A power circuit can be connected to the heating element.

Further, the present invention is not only applicable to a power supply control circuit for two heating tanks, but can also be used for a fryer that integrates three to, for example, N heating tanks.

When these N heating tanks are integrated, the power supply control circuit connection (not shown) is from the contact 18 of the micro switch 14 of the first heating tank 2 to the second heating tank 3.
In the same way as it is connected to the movable contact 20 of the micro switch 15 of Connect to the movable contact 17 of the micro switch 14 of the tank 2. Further, by setting the number of contacts of the select switch to N and connecting these contacts to the movable contacts of N microswitches, the operation is exactly the same as that of the power supply control circuit for the two heating tanks described above.

(Effects of the invention) As described above, the present invention is a fryer equipped with a power control circuit that can be used for heating tanks that integrate 2 to N pieces. It is easy to use because it is possible to select one heating tank from N heating tanks to operate preferentially. It operates to automatically maintain each heating tank at its individual set temperature. This has the above effects.

[Brief explanation of drawings]

FIG. 1 is an external perspective view showing an embodiment of a heating tank of a fryer or the like according to the present invention. FIG. 2 is an electrical circuit diagram of the heating tank. 1... Fryer body, 2... First heating tank, 3
...Second heating tank, 4, 5...Heating body, 6,7...
Thermostat, 8, 9...Heat-sensitive controller, 10...
...Select switch, 11, 12, 16, 18,
19, 21... Contact, 14, 15... Micro switch, 13, 17, 20... Movable contact, 22,
23...Power terminal.

Claims (1)

[Scope of utility model registration request] In an apparatus such as a fryer that is equipped with at least two or more heating tanks, a thermostat is provided for each of the heating tanks, which is equipped with a micro switch that detects the temperature inside the heating tank and turns on and off the power applied to the heating element. , are installed in each heating tank, and the thermostat is set to an appropriate operating temperature for each heating tank, and when one thermostat operates, power is sequentially supplied to the heating elements in the other heating tanks. A heating tank for a fryer, etc., characterized in that it is configured to be connected in a switched manner, and is also equipped with a select switch for switching the power source forcibly applied to the heating element to another source, thereby making it possible to select the power source.