JPH07148077A - High-frequency induction heating type fry oil heater - Google Patents

Abstract

PURPOSE:To provide a fry oil heater utilizing high-frequency electromagnetic induction heating which is extremely easy to perform a maintenance such as cleaning, and also excellent in durability. CONSTITUTION:A heating dipped pipe 2 consisting of a high-frequency type electromagnetic resonance coil 2 is attachably and detachably provided in a tank. By adapting such a high-frequency induction heating system, the weight of the heating dipped pipe is reduced, so that the mounting and removal of the heating dipped pipe can easily be carried out, and the tank cleaning can also be extremely facilitated. An uneconomical problem such that the whole heater is disposed by the breakage of the heating dipped pipe is eliminated, and further, by preparing a heating dipped pipe different in characteristic, the performance range of the heater can be extended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cooking oil heater, and more particularly to a cooking heater for heating water or oil by high frequency electromagnetic induction heating, and in particular an electromagnetic cooker for boiling noodles in hot water. It is useful as a boiled noodle device or a frying device using heated oil, which is easy to maintain and has good durability.

[0002]

2. Description of the Related Art Recently, various types of electromagnetic cookers using an electromagnetic induction heating system have been attracting attention for both home use and commercial use. It uses Joule heat as a heating source due to induction current induced by high-frequency (low-frequency) magnetic flux, and unlike the gas combustion heating type, it is very safe because it does not use a flame and does not have a red heat part. Because there is no problem of
It also contributes to the improvement of the kitchen environment.

This electromagnetic induction heating system is also used in a boiled noodle utensil in which noodles are boiled with boiling water. In general, the boiled noodle portion of a boiled noodle device is constructed by arranging a heating immersion tube, which is a heating source, in a horizontal direction on the inner wall of the water tank (see FIG. 1). This arrangement is to increase the contact area between the heating dip tube and the hot water to improve the heating efficiency, and if an electromagnetic induction heating dip tube with a resonance coil is used as the heating dip tube, rapid boiling of water is also possible. Becomes

However, when the boiled noodle utensil is viewed from the maintenance side, there is a problem in the arrangement of the dipping tube. In all cookers regardless of boiled noodle utensils, maintaining hygiene is important and thorough cleaning is indispensable.However, in conventional boiled noodle utensils, a horizontal heating dip tube obstructs the operation. It was difficult to clean the bottom of the water tank and the backside of the heating immersion pipe. In the case of a boiled noodle utensil in which heated food and hot water come into direct contact, it is necessary to clean it carefully, but this cleaning operation was not easy.

Further, in the conventional boiled noodle utensils, not only the gas combustion heating method but also the above-mentioned heating immersion tube utilizing electromagnetic induction heating uses a low frequency. All the pipes were welded to the inner wall of the aquarium. For this reason, when this heating dip tube is damaged, it is not possible to replace only this heating dip tube, and the entire boiled noodle device must be replaced with a new one. Unlike the combustion heating method, the electromagnetic induction heating method can prevent burns on the surface of the immersion tube and extend the life of the immersion tube, but the replacement of the entire device imposes a heavy economic burden on the user.

Therefore, the present inventor has come up with the idea of making this heating dip tube detachable. However, the conventional electromagnetic dipping type heating dipping pipe for boiled noodle utensils has a low frequency. It was difficult to adopt this attachment / detachment method because it used electromagnetic induction heating. In other words, the low-frequency electromagnetic induction heating type heating immersion tube must be provided with a copper band to be a heating body inside the immersion tube, in addition to the exterior such as stainless steel,
In addition, two or more layers of the resonance coil are wound on the iron core so that the magnetic flux effectively links the copper band, and the resonance coil is wound on the copper band with a gap as small as possible, and the power factor of the immersion pipe ( (Efficiency) must be fitted accurately so that it does not drop extremely. As described above, the low-frequency heating dip tube has a very heavy dip weight, and at the same time, requires very careful handling, so it is extremely difficult to make the heating dip tube detachable. It was

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of a conventional hot water oil heater, particularly a boiled noodle utensil. It is a technical subject to provide a hot water oil heater which is improved in the durability and the durability of the device.

[0008]

[Means adopted for solving the problem] The present inventor has studied the application of the electromagnetic induction heating method to various cooking devices and has been able to handle a dip tube using the high frequency electromagnetic induction heating method among the electromagnetic induction heating methods. , It is easy to use, and by adopting the means of detachably installing the high-frequency electromagnetic induction heating type immersion pipe in the tank, it is difficult to clean the conventional hot oil heater and the heating immersion pipe The above problems that were present at the time of damage were solved at once.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first and second embodiments of the present invention will be described below with reference to FIGS. 1 is a schematic perspective view showing a position of a heating dip tube in a conventional boiled noodle device, FIG. 2 is a schematic cross-sectional view showing a tank and a heating dip tube of a first embodiment heater according to the present invention, and FIG. 3 is the same. FIG. 4 is a schematic circuit diagram illustrating a high frequency circuit in a heater, FIG. 4 is a schematic cross-sectional view showing a bath and a heating immersion pipe of a second embodiment according to the present invention, and FIG. 5 is a heating immersion pipe end plug and socket portion in the same apparatus. It is an expanded sectional view explaining.

[First Embodiment] In FIG. 2, reference numeral 1 indicates a water tank for containing boiling water for boiling noodles, and a cylindrical dip tube support member 11 is provided at a required position on the wall surface of the water tank 1. An opening 12 having a circumference is opened. A high-frequency electromagnetic induction heating type heating immersion pipe 2 to be described later is inserted into the water tank 1 through the opening 12, and the rear end of the heating immersion pipe 2 is fulcrum on the wall surface of the water tank 1.
It is locked with the hook 3.3 that is installed at 31 and this hook 3.3
By fixing the locked state of No. 2 with the turnbuckle 4, the heating immersion tube 2 is configured to be set securely. A heat resistant packing 13 is interposed between the immersion pipe support member 11 and the rear end of the heating immersion pipe 2 to prevent leakage of hot water. Further, if a spiral spring or the like is adopted instead of the turnbuckle 4 as the means for fixing the hooks 3 and 3, the attachment / detachment work of the heating immersion pipe 2 becomes easier.

The high-frequency electromagnetic induction heating type heating immersion pipe 2 according to the present invention is different from the conventional heating immersion pipe utilizing low-frequency electromagnetic induction heating. Since it is directly heated by electromagnetic induction, only the heat-resistant coil supporting member 23 is needed, and the configuration is extremely simple. Further resonance coil
Since the number of windings of 22 can be made even more, it becomes easy to take a measure to raise the temperature of the resonance coil 22, and in contrast to the conventional low frequency immersion tube, which requires insulation of C type or more, this heating immersion tube As for 2, an ordinary insulation of class H is sufficient. In addition, since it is easy to take measures to raise the temperature, the degree of freedom in designing the diameter and length of the heating immersion pipe 2 is significantly increased, so the heating immersion pipe 2 with the optimum shape according to the heating target and capacity is provided. It becomes possible to do.

As described above, the weight of the heating immersion pipe 2 utilizing high frequency electromagnetic induction heating is less than 1/10 of that of the conventional low frequency immersion pipe, and the handling thereof is easy and the weight thereof is the same as that of this embodiment. In addition, it is possible to fix it to the water tank 1 in a cantilever manner, which facilitates the attachment / detachment work of the heating immersion pipe 2.

FIG. 3 is an electric circuit diagram of the hot oil heater of this embodiment. The rectifier 51 and the electrolytic capacitor 52 perform AC-DC conversion and smoothing processing, and then the power transistors 53 and 53 and the resonance capacitors 54 and 54 perform reverse conversion to a required high frequency AC. In addition, the signal from the temperature sensor 56 provided in the water tank 1 is compared with the setting signal input to the temperature controller 57 and output to the controller 55. The boiling water temperature of the water tank 1 is adjusted in consideration of the current value detected by the vessel 58.

[Second Embodiment] Second embodiment shown in FIGS. 4 and 5.
The embodiment is similar to the first embodiment in that the heating immersion tube 2 is inserted and set into the water tank 1 through the opening 12 opened in the water tank 1, but the attaching / detaching operation and heating of the heating immersion tube 2 are performed. It is characterized in that the immersion tube 2 is configured to be electrically connected and disconnected at the same time. That is, the end plug 24 communicating with the resonance coil 22 is provided on the insertion end side of the heating immersion pipe 2, while the opening 12 of the water tank 1 is provided.
On the wall opposite to the electrode that receives this end plug 24
The socket portion 6 having 61 is provided. Code 62
What is indicated by is an insulating member. With this configuration,
The end plug 24 and the socket portion 6 are electrically connected only by inserting the heating immersion pipe 2.

Fixing of the heating immersion pipe 2 inserted into the water tank 1
Cap 8 with push cap 81 via thumb screw 82
However, the ring hook 7 is attached to the wall of the water tank 1 at the fulcrum 71.
It is done by being locked at 7. That is, the thumbscrew
If you screw in 82, push cap 81 will
Since the heating dip tube 2 is pressed via the heating dip tube 2, the heating dip tube 2 is securely fixed between the push cap 81 and the socket portion 6.

As described above, in this embodiment, since the heating immersion tube 2 can be removed and the power source section can be disconnected at the same time, the heating immersion tube 2 can be easily attached and detached. It is not necessary to carry out wiring work with the power supply section each time when preparing several hot dipping tubes with different performances and selecting and installing the best one according to the food to be heated. Easy replacement of tubes.

As in the present embodiment, the heating immersion tube 2 is formed by forming the tapered portion 25 on the insertion end side of the heating immersion tube 2.
It becomes easier to attach and detach. The taper portion 25 and the socket portion 6 are in contact with each other via the heat resistant packing 9. Further, in this embodiment, since the water tank 1 supports the heating immersion pipe 2 in a double-sided manner, even if the heating immersion pipe has a slightly heavier weight to increase the heating capacity, As described above, the immersion pipe supporting member 11 can be securely fixed without surrounding the immersion pipe supporting member 11.

The embodiments which are specific examples of the present invention are constructed as described above, but the present invention is not limited to these embodiments, and various modifications can be made within the scope of the claims. It can be changed. For example, in the above-mentioned embodiment, the boiled noodle device is described as an example, but the heater of the present invention may be used as a frying device using heated oil.

[0019]

As described above with reference to the embodiments, in the hot water oil heater according to the present invention, the high-frequency electromagnetic induction heating type heating immersion pipe is adopted. Since it can be easily performed, cleaning of the bath becomes very easy, and the uneconomical situation of discarding the entire apparatus due to damage to the heating dip tube is eliminated.

Further, since the high-frequency electromagnetic induction heating type heating immersion pipe is detachable, several heating immersion pipes having different characteristics are prepared and the optimum heating immersion pipe is selected according to the object to be cooked. If it is attached, the performance range of the device itself can be expanded.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a heating dipping tube position in a conventional boiled noodle device.

FIG. 2 is a schematic cross-sectional view showing a bath and a heating immersion pipe according to the first embodiment of the present invention.

FIG. 3 is a schematic explanatory view showing an electric circuit of a first embodiment according to the present invention.

FIG. 4 is a schematic cross-sectional view showing a bath and a heating immersion pipe of a second embodiment according to the present invention.

FIG. 5 is an enlarged cross-sectional view illustrating a heating immersion pipe end plug and a socket portion according to a second embodiment of the present invention.

[Explanation of symbols] 1 water tank 12 opening 2 heating immersion pipe 22 resonance coil 24 end plug 3 hook 6 socket

Claims (3)

[Claims] 1. A bath oil heater utilizing high-frequency electromagnetic induction heating by a heating immersion pipe 2 comprising a resonance coil 22, wherein the heating immersion pipe 2 is detachably provided in a tank 1. High frequency induction heating type hot oil heater. 2. A hook (3, 3) in which an opening (12) for inserting the heating immersion tube (2) is provided on the wall surface of the tank (1), and the heating immersion tube (2) inserted in the opening (12) is axially attached to the wall surface of the tank (1). The high-frequency induction heating type hot water oil heater according to claim 1, wherein 3. The heating immersion tube 2 comprising the resonance coil 22 is provided with an end plug 24, and the socket portion 6 corresponding to the end plug 24 is provided on the wall surface of the tank 1 so that the heating immersion tube 2 is attached and detached at the same time. The high-frequency induction heating type hot oil heater according to claim 1, characterized in that it can be electrically disconnected.