JP2002204754A - Fryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor type fryer wherein safety of a user and the utilization efficiency of a high voltage electric field are improved. SOLUTION: An upper conveyor device 22 and a lower conveyor device 23 are arranged on the top and the bottom in an oil tank 21. An electrode plate 24 is arranged in a region which is surrounded with an endless belt 37 of the upper conveyor device 22. An endless belt 61 of the lower conveyor device 23 is formed of a conductive material, and the endless belt 61 is grounded through a grounding wire 62. By applying a high voltage weak current to the electrode plate 24, safety of the user can be ensured even when a high voltage weak current is generated in a fry ingredient-carrying region. At the same time, a favorable effect by the high voltage weak current can be applied to the ingredients.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fryer for frying frying ingredients with oil, and more particularly, to a conveyor-type fryer having an electric field forming means in an oil tank.

[0002]

2. Description of the Related Art As a fryer of this type, a fryer in which cooking oil in an oil tank is heated by heating the oil tank from the outside to cook a tempura or fried food is generally used. When such a general fryer is used, there is a problem that the oil in the oil tank is oxidized and deteriorated due to heat and easily discolored. In addition, there is a problem that the fried food material is liable to be deteriorated and deteriorated due to the oxidation of the oil. Specific problems and problems when fry ingredients are fried by such a fryer include the following points. (A) Fry ingredients absorb a lot of oil and do not fry. (B) Moisture and nutrients of the fried ingredients are eluted into the oil, resulting in a smaller fried product and lower yield. (C) The temperature of the frying oil increases. (D) The frying time becomes longer. (E) To improve the mold resistance of fried foods. (F) Improve the preservability of fried foods.

As a measure for solving such problems and problems, for example, a flyer disclosed in Japanese Patent Application Laid-Open No. 10-276744 has been devised. This flyer 1
As shown in FIG. 20, a plurality of heating pipes 3 are extended in the frying oil tank 2 so as to be parallel to each other.
Above the heating pipe 3 in the frying oil tank 2, a plane rectangular insulating frame 4 made of a ceramic material is provided.
An electric conduction plate 5 having a large number of circular holes is arranged in the insulating frame 4. The upper surface of the current-carrying plate 5 is covered with an insulating plate 6 made of fluororesin having a large number of holes formed therein.
As shown in FIG. 20, the energizing plate 5 includes a wire harness 7.
Are sequentially connected to a repeater 8, an intermediate controller 9, and a high-voltage weak current generator 10.

In such a conventional fryer 1, a high-voltage weak current flows from the current-carrying plate 5 into the frying oil 11. By the action of the high voltage weak current, oxidation of the frying oil is suppressed, and the above-mentioned problems and problems are solved.

[0005] It has been proposed that a long conveyor type frying oil tank be provided with a high voltage weak current applying device arranged in parallel in the longitudinal direction.

[0006]

However, in the above-described conventional fryer 1, the electric field in which a high-voltage weak current is generated is limited to the vicinity of the current-carrying plate 5, so that the oil at a position deviated from this electric field is high. It was not exposed to the electric field of the voltage weak current, and it was difficult to suppress the oxidizing action.

Further, when the fried food is also fried at a position off the periphery of the current-carrying plate 5, the effect of the electric field is not exerted,
The above-mentioned problems and problems are hardly solved.

The oil tank 2 is made of a conductive material, and
It is conceivable that the oil tank 2 itself acts as a counter electrode by causing the oil tank 2 to act as a counter electrode, so that the range of the electric field can be widened. It is undesirable.

Further, although the upper surface of the current-carrying plate 5 is covered with the insulating plate 6, there is a lower surface and a region exposed in the hole of the insulating plate 6, so that moisture eluted from the fry ingredients and oxidation generated from high-temperature oil are generated. There is a possibility that the polymer adheres to the conductive plate 5 and a short circuit of electric leakage or transformer failure occurs in a short time.

Further, in the above-mentioned conventional example, the effect of inducing high-voltage electric field energy to penetrate high-frequency electric field energy into the fry food which is to be affected by the electric field generated in the conductive plate 5 is weak.

On the other hand, in the case of a fryer in which a high-voltage weak current applying device is arranged in a longitudinal direction in parallel with a long conveyor-type frying oil tank, it becomes difficult to insulate a metal endless belt and install an electrode device. Unless such a problem is solved, it is difficult to avoid the user from being subjected to electrostatic shock due to electrostatic charging of the entire fryer.

Further, even if the electrode device is arranged in parallel with a long oil tank, in a model such as a conveyor type for mass-producing frying in a short time, a large amount of water eluted from the frying seeds, There is a problem that a large amount of oxidized polymer generated during the processing adheres to the electrode device, causing a short-circuit and a failure in voltage transformation in a short time.

Furthermore, since the region for forming the electric field generated from the electrode device is not defined, the electric field energy is severely consumed, and the output of the secondary side of the power supply for the purpose of mass production in short time and production of high quality products is increased. It becomes necessary, and there is a problem that the insulation performance is in proportion to the problem.

[0014] Further, when the fried seeds put into the oil tank reach the floating process, the fried food is unevenly distributed on both ends of the oil tank, and there is a problem that the function of the conveyor is hindered.

The present invention has been made to solve the above problems. Accordingly, an object of the present invention is to provide a conveyor-type fryer with improved user safety and high voltage electric field utilization efficiency.

Another object of the present invention is to improve the heat transfer to shorten the frying process, lower the temperature of the frying oil (suppress oil deterioration), and reduce the oil absorption of the frying ingredients. To provide a formula flyer.

It is a further object of the present invention to provide a conveyor-type fryer capable of promoting the irreversible destruction of bacterial cell membranes generated during frying to improve the mold resistance and preservability of fried foodstuffs. .

Another object of the present invention is to reduce the amount of waste oil by suppressing the generation of oxidized polymers produced by the moisture eluted from the fry ingredients and the deterioration of the fried oil due to high temperature heating in the frying process. Another object of the present invention is to provide a conveyor-type fryer that can reduce the amount of harmful substances taken together with fried food ingredients into the human body.

Still another object of the present invention is to provide a conveyer-type fryer capable of suppressing the absorption of a large amount of oil by frying ingredients and frying it.

It is another object of the present invention to provide a conveyor-type fryer which suppresses elution of moisture and nutrients of fried food ingredients into oil and improves the yield of fried foods.

[0021]

According to the first aspect of the present invention,
In the oil tank, a pair of conveyor devices are arranged vertically, and a predetermined range of running surfaces of endless belts provided in each conveyor device face each other to form a fry food transport area, and the endless belts are connected to each other. The two endless belts are driven so as to run at substantially the same speed, and are set so that the two endless belts run in the same direction on the running surface in the predetermined range, and the endless belt of one of the conveyor devices is formed of a conductive material. And in the space in the loop of the endless belt of the other conveyor device, while being substantially parallel to the running surface of the predetermined range of the endless belt of the one conveyor device, the entire surface of the conductive metal is An electrode plate coated with an insulating material layer is arranged, and an electric field is formed in the fry food transport region by applying a high voltage to the electrode plate, and the Lai ingredients and the contact one of the endless belt, characterized in that the high voltage weak current flows into the frying food.

According to the first aspect of the present invention, in the fry food conveying area between the endless belts, a high voltage weak current generated by applying a high voltage to the electrode plate conducts the fry food. Then, there is an action of surely flowing toward one endless belt. For this reason, when a high voltage weak current passes through the oil pump and a high voltage is applied, it is possible to suppress oxidation, deterioration, and the like of the oil pump in the oil tank. In addition, frying oil placed in the fried food transport area,
Since the fried foodstuff is exposed to a high voltage weak current, bacteria such as bacteria can be killed. For this reason, mold resistance and preservability of the fried foodstuff can be improved. And, by the formation of a high-voltage electric field,
The heat transfer is improved, and the temperature of the oil can be kept low. This action also makes it possible to prevent the deterioration of the fried oil. Further, according to the present invention, the fried food material is conveyed between the endless belts facing each other, so that the fried food material can be efficiently fried.

According to a second aspect of the present invention, there is provided the fryer according to the first aspect, wherein a side periphery of an electric field forming region formed by the electrode plate and a predetermined range of a running surface of the other endless belt. Is characterized in that an electric field cut-off layer made of an insulating material is arranged so as to surround.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect, the electric field blocking layer made of an insulating material surrounds the electric field forming region between the electrode plate and the other endless belt. The high voltage weak current generated in the electric field forming region can reliably flow between the electrode plate and the other endless belt without escaping to the surroundings.

Further, the invention according to claim 3 provides the invention according to claim 2.
In the fryer described in the above, the electric field blocking layer,
It is characterized in that it is formed on the inner wall surface of the oil tank.

Therefore, according to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, since the electric field shielding layer is formed on the inner wall of the oil tank, for example, the oil tank itself has a conductive property. Even when formed of a material, it is possible to prevent the occurrence of electric leakage.

According to a fourth aspect of the present invention, there is provided the fryer according to any one of the first to third aspects, wherein the pair of conveyor devices comprises a frame having a frame plate facing the frame. It is arranged between the plates, and is housed in the oil tank while being supported by the frame plate on both sides.

Therefore, according to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, the maintenance of the conveyor device is performed because the conveyor device is supported by the frame. The conveyor device can be easily pulled out of the oil tank.

Further, the invention according to claim 5 is the same as claim 4
The fryer according to claim 1, wherein the electric field blocking layer is formed on a surface facing the frame plate.

Therefore, according to the fifth aspect of the invention, in addition to the function of the fourth aspect of the invention, the electric field blocking layer is formed on the opposing surface of the frame plate, so that the electric field blocking layer is located closer to the electric field forming region. And a uniform electric field can be formed without any leakage.

Further, the invention according to claim 6 is the same as the invention according to claim 1.
The fryer according to claim 1, wherein the insulating material layer includes an insulating layer formed on a surface of the conductive metal, and an insulating sheet vacuum-wrapped over the insulating layer.

According to the sixth aspect of the present invention, the insulating layer is formed on the surface of the conductive metal, and furthermore, the insulating layer is covered with the vacuum-wrapped insulating sheet. There is action.

According to a seventh aspect of the present invention, there is provided the fryer according to the first aspect, wherein the electrode plate is provided so as to be movable up and down.

Therefore, according to the seventh aspect of the invention, in addition to the operation of the first aspect, the distance between one endless belt and the electrode plate is arbitrarily adjusted by raising and lowering the electrode plate. And an electric field optimal for the fly processing can be formed.

Further, the invention described in claim 8 is the first invention.
8. The fryer according to claim 7, wherein the two endless belts are substantially mutually separated in a direction in which the fry food is taken out of the oil tank from a running direction end of the endless belt in the fry food conveyance area. It has a take-out running surface which is parallel.

Therefore, the invention of claim 8 has an effect of taking out the fried food material along the running surface in addition to the effect of the inventions of claims 1 to 7. For this reason, the fried food material which has been subjected to the frying treatment is not left for a long time during the frying, can be efficiently pulled out of the oil tank, and a large amount of the fried food material can be efficiently processed.

According to a ninth aspect of the present invention, there is provided a fryer according to any one of the first to eighth aspects, wherein the electrode plate has a plurality of oil circulation holes. And

According to the ninth aspect of the present invention, in addition to the effects of the first to eighth aspects of the present invention, the oil circulation holes formed in the electrode plate can prevent the convection of the oil and the frying. It has the effect of allowing the oil to float on the surface of the oil.
For this reason, it has the effect of improving the temperature efficiency of the oil and suppressing the contamination of the oil.

Further, according to a tenth aspect of the present invention, there is provided the fryer according to any one of the first to ninth aspects, wherein the both endless belts have a substantially mesh shape.

Therefore, in the tenth aspect of the present invention, in addition to the effects of the first to ninth aspects, the convection of the oil and the frying of the oil are lifted to the oil surface through the mesh of the endless belt. Has the effect of allowing. For this reason, in addition to the function of the above-mentioned electrode plate, there is an effect of further improving the temperature efficiency of the oil pumping and suppressing contamination of the oil pumping.

The eleventh aspect of the present invention relates to the first aspect.
11. The fryer according to claim 10, wherein the endless belt of the other conveyor device is formed of an insulating material.

According to the eleventh aspect of the present invention, the other endless belt on which the electrode plate is disposed is formed of an insulating material, thereby preventing a high voltage weak current from flowing from the electrode plate to the other endless belt. There is action.

Further, the invention according to claim 12 is the fryer according to any one of claims 4 to 11, wherein a lid body made of an insulating material is disposed above the oil tank. It is characterized by the following.

Therefore, according to the twelfth aspect of the present invention, in addition to the functions of the fourth to eleventh aspects of the present invention, by disposing a lid on the upper portion of the oil tank, the upper part of the endless belt can be moved. It can be covered and has the effect of preventing the user from contacting the endless belt.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a fryer according to the present invention will be described below based on an embodiment shown in the drawings.

<First Embodiment> FIGS. 1 to 13 show a first embodiment of a conveyor-type fryer according to the present invention. First, the outline of the configuration of the fryer 20 of the first embodiment will be described with reference to FIGS. FIG. 1 is a plan view of the fryer 20, and FIG. 2 is a sectional view taken along line AA of FIG.

As shown in FIGS. 1 and 2, the fryer 20 includes an oil tank 21, an upper conveyor device 22 disposed above the oil tank 21, and a lower conveyor device disposed below the upper conveyor device 22. 23 and the upper conveyor device 2
2 and a pair of frame plates 25, 25 arranged on both sides in the width direction of the upper conveyor device 22 and the lower conveyor device 23 to support these conveyor devices 22, 23. Frame 26 and oil tank 2
1 and the electric field blocking layers 27, 28, 28 provided on the opposed inner side surfaces of the frame plates 25, 25.

The oil tank 21 has a space inside the oil tank having a predetermined depth as shown in FIG.
It is set long in the direction indicated by the middle arrow x. A heating device (not shown) is provided at a lower portion of the oil tank 21 to heat the oil 29 introduced into the oil tank 21. The constituent material of the oil tank 21 is made of stainless steel, aluminum, or other various metal materials. The oil tank 21
As the constituent material of, a heat-resistant synthetic resin, a high-strength ceramic material, or the like may be used other than the metal material.

The electric field shielding layers 27 and 28 are made of, for example, a fluorine resin having heat resistance and water repellency. The one electric field shielding layer 27 is formed so as to adhere to the bottom surface of the oil tank 21 by vacuum finishing. The other electric field shielding layers 28, 28 are connected to the electrode plate 24 and an endless belt 6 described later.
It has a function of preventing an electric field formed between the first and second electrodes from leaking (leaking) to the outside, and increases the intensity of the electric field to increase the electric field efficiency.

The longitudinal direction of the oil tank 21 (the direction of the arrow x)
One end side is, as shown in FIGS. 1 and 2, an introduction portion 31 into which fried food material 30 is charged. The other end in the longitudinal direction of the oil tank 21 serves as a discharge portion 32 for discharging the fried food material 30. In addition, the discharge part 32 of the oil tank 21 is inclined from the bottom toward the upper edge so that the fry food 30 is pulled up by the lower conveyor device 23.

As shown in FIG. 1, the upper conveyor device 22 includes frame plates 2 arranged along both side walls in the width direction (the direction of arrow y in FIG. 1) inside the oil tank 21.
A plurality (four in this embodiment) of insulating shafts 33, 34, 35, 36 made of an insulating material are provided between 5 and 25. A net-like endless belt 37 made of an insulating material such as a synthetic resin is hung on the insulating shafts 33, 34, 35, 36 so as to run. Further, among the insulating shafts 33, 34, 35, 36, the rotational driving force is transmitted to the insulating shaft 33 located at the most other end side of the oil tank 21 from a rotational driving unit 60 such as an electric motor via a chain 41. It has become.

Note that the endless belt 37 is
3, 34, 35, 36, the oil tank 2
The lower traveling surface and the upper traveling surface traveling in the longitudinal direction of the first traveling direction are parallel to each other. The running direction of the endless belt 37 is set to run from one end of the oil tank 21 to the other end on the lower running surface. Also,
Insulating shafts 33 and 34 located on the other end side of oil tank 21
Is a slope 21 inclined from the bottom of the oil tank 21 toward the upper edge.
A is arranged along A. The endless belt 37 running between the insulating shafts 33 and 34 runs on an inclined running surface substantially parallel to the slope 21A.

Here, the insulating shafts 33, 34, 35,
The configuration and mounting structure of 36 will be described with reference to FIGS.

The insulating shafts 33, 34, 35, 36
For example, the surface of a shaft made of stainless steel is coated with a fluororesin such as polytetrafluoroethylene (PTFE) or another synthetic resin having electrical insulation. Further, each of the insulating shafts 33, 3
As shown in FIG. 5, 4, 35 and 36 are fitted and fixed to an electrically insulating roller 46 provided with a large number of anti-slip projections 46A so as to prevent the net-shaped endless belt 37 from slipping. It has become. In particular, the center of a disk-shaped flange member 43 is fixed to one end of the insulating shaft 33. A plurality of bolt insertion holes 43A are formed in the flange member 43. This flange member 43
Is also coated with a synthetic resin having electrical insulation.

A connecting member 44 whose surface is coated with a synthetic resin having electrical insulation properties is joined to the flange member 43. This connecting member 4
4, a bolt insertion hole 44A is formed at a position corresponding to the bolt insertion hole 43A of the flange member 43. In the center of one surface of the connecting member 44, a columnar protruding shaft 44B protruding laterally is formed.

Further, a disc-shaped gear 45 for hanging the chain 41 is mounted on the end of the protruding shaft 44B. In the center of the gear 45, a shaft insertion hole 45A into which the protruding shaft 44B is inserted is formed. The gear 45 has a bolt insertion hole 45B formed at a position corresponding to the bolt insertion hole 44A of the connecting member 44.

As shown in FIG. 5, the insulating shaft 33 is
A roller 46 is inserted from the outside of the frame plate 25 into a bearing hole formed through the frame plate 25 and the electric field blocking layer 28, and
Are fitted. Further, the protruding shaft 44 of the connecting member 44
A gear 45 is fitted to the tip of B. And FIG.
As shown in the figure, the flange member 43, the connecting member 44,
The gear 45 is a corresponding bolt insertion hole 43A, 44A,
The bolt 47 is inserted through 45B. A nut 48 for fixing the position of the connecting member 44 and a gear 4
Nuts 49 and 50 for fixing the position of the screw 5 are screwed together.

On the other hand, the other end of the insulating shaft 33 is received by a bearing structure as shown in FIGS. As shown in FIG. 6, the bearing structure includes a bearing member 51 made of an insulating resin such as a fluorine resin and a reinforcing ring 52. The bearing member 51 is
A plate mounting protrusion 51A protruding on one end surface side, and a screw portion 5 protruding on the other end surface side and having a male screw formed on a peripheral surface.
1B and a flange portion 51C having a long diameter at an intermediate portion are integrally formed. A bearing hole 51D having a predetermined depth is formed from an end surface of the plate mounting projection 51A. Further, a plurality of bolt insertion holes 51E are formed in the flange portion 51C.
Are set up in the axial direction. Further, a bolt insertion hole 52A is formed in the reinforcing ring 52 at a position corresponding to the bolt insertion hole 51E of the flange portion 51C of the bearing member 51. In the center of the reinforcing ring 52, a screw portion 51 is provided.
A female screw portion 52 </ b> B screwed to B is formed.

As shown in FIG. 7, the frame plate 25
The opening 53 into which the plate mounting projection 51A of the bearing member 51 is inserted and the bolt insertion hole 5 are formed in the electric field blocking layer 28.
4 are formed. The plate mounting projection 51 </ b> A of the bearing member 51 is connected to the frame plate 25 and the electric field blocking layer 28.
The reinforcing ring 52 is screwed into the screw portion 51B of the bearing member 51. And
A bolt insertion hole 54 formed in the frame plate and the electric field blocking layer 28 and a bolt insertion hole 51 on the bearing member 51 side
When the bolt 55 is inserted and tightened with the nut 56 in a state where E and the bolt insertion hole 52A of the reinforcing ring 52 are aligned, the bearing member 51 and the reinforcing ring 52 are fixed to the frame plate 25 side. In this state, the other end of the insulating shaft 33 is inserted into the bearing hole 51D of the bearing member 51.

Although the structure in which the insulating shaft 33 is pivotally supported on the frame plates 25, 25 has been described, both ends of the other insulating shafts 34, 35, 36 are similarly formed by the bearing structures shown in FIGS. It is pivoted.

Next, the configuration of the lower conveyor device 23 will be described. As shown in FIG. 2, the lower conveyor device 23 moves the frame plate 25 so that the rotary shafts 38, 39, and 40 are disposed at the front end position, the rear end position, and the upper position of the slope 21 </ b> A of the oil tank 21. , 25. A reticulated endless belt 61 made of a conductive material such as metal is hung on the rotating shafts 38, 39, and 40. The rotating shaft 40 is connected to the connecting member 4 as shown in FIGS.
A connecting member 57 similar to the gear 4 and a gear 58 similar to the gear 45 are provided. A chain 59 is attached to the gear 58.
Is hung. The chain 59 and the chain 41 hung on the gear 45 are both linked to the rotation drive means 60 as shown in FIG. 2, and are set to rotate in opposite directions. For this reason, the running surfaces of the endless belts 37 and 61 vertically facing the upper conveyor device 22 and the lower conveyor device 23 are set to run at substantially the same speed in the same direction. Therefore, between the endless belts 37 and 61, the fry food 30
Is formed from the introduction section 31 to the discharge section 32. In addition, both endless belts 37 and 6
The clearance between 1 is set according to the size of the fry ingredients. The traveling speed of both endless belts 37 and 61 is set according to the time required for the frying processing of the fry ingredients.

The other rotating shafts 38, 39 are supported by the frame plates 25, 25 by the same bearing structure as the insulating shafts 34, 35, 36 described above. However, the rotating shaft 38 and a roller (not shown) attached to the rotating shaft 38 are conductive so as to be electrically connected to the conductive endless belt 61 without applying an insulating coating. The end of the rotating shaft 38 is connected to a ground wire 62.

Next, the first embodiment will be described with reference to FIGS.
The configuration of the electrode plate 24 and its mounting structure will be described. As shown in FIG. 8, the electrode plate 24 is suspended by a beam member 64 bridged between upper end edges of the frame plates 25, 25 via an electrode plate suspension bracket 63. The electrode plate 24 is connected to a relay 66, an intermediate controller 67, and a high-voltage weak current generator 68 via a wiring 65.

The structure of the electrode plate 24 is as shown in FIG.
The plurality of openings 24A are formed uniformly. Further, the electrode plate 24 is provided with a metal fitting attachment portion 69 for attaching the lower end of the electrode plate hanging metal fitting 63. The side face of the metal fitting mounting portion 69 is formed in a substantially U-shape so as to straddle the opening 24A.

As shown in FIGS. 8 and 10, an opening 71A through which the screw portion 70A of the fitting member 70 is inserted is formed on the upper surface of the fitting portion 69. On the upper surface of the metal fitting portion 69, a metal fitting member 7 is provided from below.
0 screw part 70A is inserted upward, and a screw member 7 in which a female screw 71A is formed in the screw part 70A protruding from the upper surface.
1 is screwed.

The metal fitting mounting member 70 has a metal fitting insertion hole 70B penetrating vertically. The electrode plate hanging bracket 63 is inserted through the metal fitting hole 70B from below, and the upper end of the electrode plate hanging bracket 63 is fixed to the beam member 64 by screwing. The electrode plate hanging bracket 6
By adjusting the screwing position 3, the height of the electric field forming region formed by the electrode plate 24 and the endless belt 61 can be adjusted, and the strength of the electric field can be adjusted. The fitting member 70 and the screw member 71 are made of an insulating resin such as a fluororesin. Further, the metal fitting mounting portion 69 is similarly covered with an insulating resin.

Further, as shown in FIG. 11, the electrode plate 24 has an opening formed in a conductive plate 72 made of a conductive metal such as stainless steel, and for example, a fluorine resin is deposited on the entire surface to form an insulating deposited film 73. The insulating sheet 74 made of, for example, a fluororesin is vacuum-pressed (vacuum wrapped) from the front and back surfaces, and the insulating sheets 74, 74 are cut into a circle at the opening 24A. As described above, by sealing the conductive plate 72 with the insulating vapor-deposited film 73 and the insulating sheet 74, the oxidized polymer generated by the moisture eluted from the fried food material 30 in the frying process and the deterioration caused by the high temperature heating of the frying oil Does not directly adhere to the conductive plate 72, and the deterioration of the electrode plate 24 can be prevented.

In the first embodiment, the lid 98 is arranged so as to cover the upper portion of the oil tank 21 as shown in FIG. It is designed to prevent contact.

In the first embodiment, the electrode plate 24
Repeater 66, intermediate controller 67, high voltage weak current generator 6
Although a simple configuration for connecting the power supply 8 is used, a configuration including an electrode plate control device 75 and a (flyer) temperature control device 76 as shown in FIGS. 12 and 13 may be employed. The electrode plate control device 75 shown in FIG.
A lid engaging / disengaging device 79, an emergency stop device 80, a slider box 81, a transformer 82, and the like are connected. Also,
The transformer 82 is connected to the conductive plate 72 of the electrode plate 24.

On the other hand, the temperature control device 76 is connected to a power supply 83, an operation instruction section 84, a temperature sensor 85, a variable device 86, and a fryer heating device 87.

With the above configuration, it is possible to realize a conveyor-type fryer 20 in which the safety of the user and the efficiency of using the high-voltage electric field are improved. That is, the electric field blocking layers 28 and 28 made of an insulating material are arranged so as to sandwich the side periphery of the electric field forming region between the electrode plate 24 and the endless belt 61 functioning as an earth plate opposed thereto. Therefore, a high-voltage electric field can be reliably formed, and the utilization efficiency of the high-voltage electric field can be improved.

Further, in the first embodiment, a high-voltage weak current can be supplied to the fried foodstuff 30 and the fryer 29, so that the heat transfer is improved, the frying process is shortened, and the fryer temperature is lowered (oil deterioration). And the amount of oil absorbed by the fried food 30 can be reduced.

Further, in the first embodiment, the irreversible destruction of bacterial cell membranes generated in the fried oil 29 can be promoted, and the mold resistance and preservability of the fried food can be improved.

In the first embodiment, the fry ingredients 30
Can suppress deep absorption of oil and can be deep-fried.

Further, in the first embodiment, it is possible to suppress the water and nutrients of the fried food ingredients 30 from being eluted into the oil, thereby improving the yield of fried foods.

<Embodiment 2> Next, the structure of a fryer according to Embodiment 2 of the present invention will be described with reference to FIGS. In the second embodiment, the same reference numerals are given to portions that perform the same functions as those in the first embodiment, and the description thereof will be omitted. Only different portions will be described.

In the second embodiment, both widthwise sides of the electrode plate 24 are fixed to the frame plates 25, 25. On both sides of the electrode plate 24, as shown in FIG.
The fixing tool 91 is screw-fixed through the bolt 0, and a bolt 92 protruding from a side portion of the fixing tool 91 penetrates through the electric field blocking layer 28 and the frame plate 25, and is fixed by screwing with a nut 93. . In the second embodiment, the electrode plate 24
Attach the bolt 92 to the frame plate 25
Is defined by the position where the frame plate 2
A plurality of through holes may be formed on the fifth side so as to be able to take a plurality of height positions.

The other configuration of the second embodiment is substantially the same as that of the first embodiment, and the operation and effect are the same as those of the first embodiment. <Third Embodiment> Next, the configuration of a third embodiment of a fryer according to the present invention will be described with reference to FIGS. Note that, in the third embodiment, the portions that perform the same functions as those in the above-described first embodiment are denoted by the same reference numerals, description thereof will be omitted, and only portions having different configurations will be described.

In the fryer 20 according to the third embodiment, the endless belt 37A of the upper conveyor device 22 is made of a conductive material, and the rotating shafts 95 and 9 for hanging the endless belt 37A are provided.
One of the rotary shafts 6 and 97 has conductivity, and is grounded via the ground wire 62. On the other hand, the endless belt 61A of the lower conveyor device 23 is formed of an insulating resin. And the lower conveyor device 2
The electrode plate 24 is disposed in a region surrounded by the third endless belt 61A. This electrode plate 24 is connected to a frame plate 25,
The structure attached to 25 is substantially the same as the structure shown in FIGS. The other configuration in the third embodiment is similar to the configuration in the first and second embodiments described above, and the operation and effect are substantially the same as those in the first and second embodiments.

Although the first to third embodiments have been described above, the present invention is not limited to these, and various changes accompanying the gist of the configuration are possible. For example, in the above-described first to third embodiments, as a heating means of the oil pump 29 in the oil tank 21, a structure in which the oil pump in the oil tank is directly heated using a heating pipe at the bottom of the oil tank 21, or a heating means outside the oil tank is provided. Needless to say, the configuration may be provided.

In the first to third embodiments described above, the electric field blocking layers 27 and 28 and the insulating coating are formed of a fluororesin, but other insulating synthetic resins or ceramic materials can be applied. is there.

Further, although the endless belts 37 and 61 are formed in a net shape, a plurality of holes may be formed uniformly.

[0083]

As is apparent from the above description, according to the first aspect of the present invention, a high-voltage weak current passes through the oil pump and a high voltage is applied, so that the oil in the oil tank is oxidized, This has the effect of suppressing deterioration and the like. In addition, since the frying ingredients placed in the fry ingredient transport area and the fry ingredients are exposed to high voltage and weak current, bacteria such as bacteria can be killed, and the effect of improving the mold resistance and preservative properties of the fry ingredients can be reduced. is there. Further, since the high-voltage electric field is reliably formed, the heat transfer property is improved, and the temperature of the pumping oil can be kept low. For this reason, there is an effect of preventing deterioration of the fried oil. According to the first aspect of the present invention, since the fried food is transported between the endless belts facing each other, there is an effect that the fried food can be efficiently fried.

According to the second aspect of the present invention, in addition to the effects of the first aspect, an electric field blocking layer made of an insulating material surrounds an electric field forming region between the electrode plate and the other endless belt. With this configuration, the high voltage weak current generated in the electric field forming region does not escape to the surroundings, and has an effect of reliably flowing a uniform current between the electrode plate and the other endless belt.

According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, since the electric field blocking layer is formed on the inner wall surface of the oil tank, for example, the oil tank itself has conductivity. Even when formed of a metal material, there is an effect of preventing the occurrence of electric leakage.

According to the invention set forth in claim 4, claims 1 to 5
In addition to the effect of the invention described in claim 3, since the conveyor device is supported by the frame, there is an effect that the conveyor device can be easily pulled out of the oil tank when maintenance of the conveyor device is performed.

According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect, by forming the electric field blocking layer on the opposite surface of the frame plate, the electric field blocking layer can be provided closer to the electric field forming region. Can be arranged, and the electric field can be reliably formed.

According to the sixth aspect of the present invention, since the insulating layer formed on the surface of the conductive metal is covered with the vacuum-wrapped insulating sheet, it is possible to further suppress the deterioration of the electrode plate.

According to the seventh aspect of the present invention, in addition to the effect of the first aspect of the present invention, the distance between one endless belt and the electrode plate can be arbitrarily adjusted by raising and lowering the electrode plate. As a result, an electric field optimal for the fly processing can be formed.

According to the invention as set forth in claim 8, claims 1 to 1 are provided.
In addition to the effect of the invention described in claim 7, since the fried food material that has been fried can be taken out along the take-out traveling surface, the fried food material that has been subjected to fry processing is left for a long time during oil pumping. Therefore, it can be efficiently lifted from the oil tank, and a large amount of fried food can be efficiently processed.

According to the ninth aspect of the present invention, claims 1 to 1
In addition to the effect of the invention described in claim 8, there is an effect that the oil circulation holes formed in the electrode plate allow convection of the oil and floating of the frying to the surface of the oil. This has the effect of improving the temperature efficiency of the oil pumping and suppressing the contamination of the oil pumping.

According to the tenth aspect, the first aspect is provided.
In addition to the effects of the invention described in claim 9, it is possible to allow the convection of the oil through the mesh of the endless belt or to lift the frying to the surface of the oil, further improving the temperature efficiency of the oil, It has the effect of suppressing the contamination of the fried oil.

According to the eleventh aspect of the present invention, in addition to the effects of the first to tenth aspects, the other endless belt on which the electrode plate is disposed is formed of an insulating material. This has the effect of preventing a high voltage weak current from flowing from the plate to the other endless belt.

According to the twelfth aspect of the invention, in addition to the effects of the fourth to eleventh aspects, by disposing the lid on the upper portion of the oil tank, the upper part of the endless belt can be covered. This has the effect of preventing the user from coming into contact with the endless belt, thereby ensuring work safety.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a fryer according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view of the fryer according to the first embodiment.

FIG. 4 is an exploded cross-sectional view showing a structure of an end portion of the insulating shaft in the fryer according to the first embodiment.

FIG. 5 is a sectional view of a main part showing a bearing structure of an insulating shaft in the fryer according to the first embodiment.

FIG. 6 is an exploded cross-sectional view showing a bearing structure of the insulating shaft in the fryer according to the first embodiment.

FIG. 7 is a sectional view of a main part showing a bearing structure of the insulating shaft in the fryer according to the first embodiment.

FIG. 8 is an explanatory cross-sectional view of the fryer according to the first embodiment.

FIG. 9 is a plan view of an electrode plate of the fryer according to the first embodiment.

FIG. 10 is a sectional view of a screw member used for attaching an electrode plate of the fryer according to the first embodiment.

FIG. 11 is a cross-sectional view of the electrode plate according to the first embodiment.

FIG. 12 is a block diagram illustrating a configuration of an electrode plate control device according to the first embodiment.

FIG. 13 is a block diagram illustrating a configuration of a temperature control device according to the first embodiment.

FIG. 14 is a plan view of Embodiment 2 of the fryer according to the present invention.

FIG. 15 is a longitudinal sectional view of a fryer according to the second embodiment.

FIG. 16 is a cross-sectional view of a fryer according to the second embodiment.

FIG. 17 is a plan view of the electrode plate according to the second embodiment.

FIG. 18 is a longitudinal sectional view showing Embodiment 3 of a fryer according to the present invention.

FIG. 19 is a cross-sectional view of a fryer according to the third embodiment.

FIG. 20 is a sectional view showing a conventional fryer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 20 fryer 21 oil tank 22 upper conveyor device 23 lower conveyor device 24 electrode plate 25 frame plate 26 frame 27, 28 electric field blocking layer 29 oil pumping 30 fried food material 31 introduction part 32 discharge part 33, 34, 35, 36 insulating shaft 37 endless Belts 38, 39, 40 Rotating shaft 41 Chain 42 Rotation driving means 61 Endless belt 62 Ground wire 65 Wiring 68 High voltage weak current generator 72 Conductive plate 73 Insulating vapor deposition film 74 Insulating sheet

Claims (12)

[Claims] 1. A pair of conveyor devices are vertically arranged within an oil tank, and a predetermined range of running surfaces of endless belts provided in each of the conveyor devices face each other to form a fried foodstuff conveying area, The endless belts are driven so as to run at substantially the same speed, and the both endless belts are set to run in the same direction on a running surface in the predetermined range. The endless belt of one of the conveyor devices is electrically conductive. The endless belt of the other conveyor device is substantially parallel to the running surface of the predetermined range of the endless belt of the one conveyor device, and is electrically conductive. An electrode plate formed by covering the entire surface of the metal with an insulating material layer is disposed, and an electric field is formed in the fry food transport region by applying a high voltage to the electrode plate. A fryer, wherein the fry food comes into contact with the one endless belt so that a high voltage weak current flows through the fry food. 2. An electric field blocking layer made of an insulating material is disposed so as to surround a side periphery of an electric field forming region formed by the electrode plate and a predetermined range of a running surface of the other endless belt. The fryer according to claim 1, wherein: 3. The fryer according to claim 2, wherein the electric field blocking layer is formed on an inner wall surface of the oil tank. 4. The pair of conveyor devices are disposed between the frame plates in a frame having opposing frame plates, and housed in the oil tank while being supported by the frame plates on both sides. The fryer according to any one of claims 1 to 3, wherein 5. The fryer according to claim 4, wherein the electric field blocking layer is formed on a surface facing the frame plate. 6. The insulating material layer according to claim 1, wherein the insulating material layer includes an insulating layer formed on a surface of the conductive metal, and an insulating sheet that is vacuum-wrapped over the insulating layer.
The described flyer. 7. The fryer according to claim 1, wherein the electrode plate is provided so as to be able to move up and down. 8. The endless belts have take-out running surfaces that are substantially parallel to each other in a direction in which fry food is taken out of the oil tank from a terminal end of the endless belt in the running direction in the fry food transport area. The flyer according to any one of claims 1 to 7, wherein 9. The fryer according to claim 1, wherein a plurality of oil circulation holes are formed in the electrode plate. 10. The fryer according to claim 1, wherein the endless belts have a substantially mesh shape. 11. The fryer according to claim 1, wherein the endless belt of the other conveyor device is formed of an insulating material. 12. The fryer according to claim 4, wherein a lid made of an insulating material is disposed above the oil tank.