JP7251844B2 - flyer - Google Patents

Description

The present invention relates to a fryer equipped with a filter device in which contaminant nodules are agglomerated inside the ceramic filter without clogging the ceramic filter by standing waves, and more particularly, the ceramic filter is installed inside the filter housing. A fryer in which a ceramic filter is arranged between two ultrasonic transducers arranged and facing each other so that the two ultrasonic transducers radiate ultrasonic vibrations of the same amplitude and frequency to the ceramic filter.

In general, edible oil is oxidized, degraded, hydrolyzed by air, heat, water, etc. during the process of frying food, discolored, increased in acid value and oxide value, and changed into substances harmful to the human body. For this reason, when cooking oil is used repeatedly for a long time, rancidity due to deterioration and hydrolysis progresses. For this reason, the development of a fryer that does not exceed the legal allowable standard value is required by the Food Sanitation Law, which can suppress oxidation by reducing deterioration and hydrolysis, and can suppress harmfulness to the human body and generation of waste as much as possible. ing.

Korean Patent No. 10-1901860 (registered on September 18, 2018) of the present applicant discloses an "infrared fryer".

In the infrared fryer, a plurality of quartz tubes are attached to an oil tank filled with edible oil, a heat transfer heater is disposed inside the quartz tube, and an air layer is formed between the heat transfer heater and the quartz tube. The heat energy of the heat transfer heater is delivered to the quartz tube through the air layer, the quartz tube is heated, infrared rays are emitted from the heated quartz tube, the cooking oil in the oil tank is heated by the infrared rays, and the quartz tube is heated. A through hole is formed between the heat transfer heater and the quartz tube at the end of the tube, and the air in the air layer is discharged to the outside through the through hole, and the outside air is discharged to the air layer through the through hole. can flow in.

However, the infrared fryer not only needs a backwashing process to prevent the filter pores from being clogged by impurities, but also basically prevents the filter pores from being clogged by impurities. I couldn't do it.

Korean Patent No. 10-1901860 (Registered on September 18, 2018)

Accordingly, an object of the present invention is to dispose a ceramic filter inside a filter housing and to dispose the ceramic filter between two ultrasonic transducers facing each other so that the two ultrasonic transducers have the same amplitude and frequency. A standing wave is generated inside the ceramic filter by radiating the ultrasonic vibration of the ceramic filter, and the nodules of oil contaminants supplied to the inside of the ceramic filter by the standing wave are formed into the ceramic filter. It accumulates in the center of the inside of the oil, and the aggregation of fine unit structure protein aggregates is activated. To provide a fryer capable of not only preventing clogging of the filtration pores of a ceramic filter but also preventing rapidly enlarged aggregates from passing through the filtration pores of the ceramic filter.

An example of a fryer according to the present invention for achieving the above objects is a fryer in which a drain pipe is connected to the outlet of an oil tank, a circulation pipe is branched from the drain pipe, a circulation pump is attached to the circulation pipe, and the circulation pipe is is connected to the filter device, the oil in the oil tank is supplied to the filter device by the circulation pump, the return pipe connected to the filter device is connected to the oil tank, and the oil filtered by the filter device is sent through the return pipe to the oil tank In the fryer supplied to , the filter device has a ceramic filter disposed inside the housing, and a first ultrasonic transducer and a second ultrasonic transducer are mounted on the upper head portion and the lower head portion of the housing, respectively. the first ultrasonic transducer and the second ultrasonic transducer are arranged to face each other, and the ultrasonic vibration of the first ultrasonic transducer is radiated toward the second ultrasonic transducer; The ultrasonic vibrations of the second ultrasonic transducer are radiated toward the first ultrasonic transducer, and the first ultrasonic transducer and the second ultrasonic transducer are coupled to a common ultrasonic oscillator. As a result, the same ultrasonic oscillation signal is simultaneously output from the common ultrasonic oscillator to the first ultrasonic transducer and the second ultrasonic transducer, and the first ultrasonic transducer and the second ultrasonic transducer are output at the same time. A ceramic filter is arranged between, a first spring is arranged between the first ultrasonic transducer and the ceramic filter, and a second spring is arranged between the second ultrasonic transducer and the ceramic filter is arranged, both ends of the ceramic filter are supported by the first and second springs, the circulation pipe is drawn into the ceramic filter through the housing, and the dirty oil supplied from the oil tank is passed through the circulation pipe. A return pipe is connected to the discharge port of the lower head part, and the oil filtered by the ceramic filter is supplied to the oil tank through the return pipe.

The housing and the upper head are connected by a hinge, a locking device is arranged on the opposite side of the hinge, a hook of the locking device is mounted on the housing, and a latch of the locking device is mounted on the upper head, The upper head part is locked to the housing by a locking device.

The upper head portion has a cylindrical mounting portion formed in the center, a threaded portion formed on the inner peripheral surface of the mounting portion, and a threaded portion formed around the first ultrasonic transducer. 1 ultrasonic transducer is attached to the attachment portion by a screwing method.

The lower head portion is bonded to the lower end portion of the housing, has a cylindrical mounting portion formed in the center, and has a threaded portion formed on the inner peripheral surface of the mounting portion to surround the second ultrasonic transducer. A threaded portion is formed, and the second ultrasonic transducer is mounted to the mounting portion by a screwing method.

In the ceramic filter, an upper cap and a lower cap are coupled to upper and lower ends of a filter body formed in a cylindrical shape, respectively, and a first spring mounting member is attached to the center of the upper cap. The lower cap has a hole in which the circulation tube is fitted, and a second spring mounting member is attached to the center of the lower cap.

The first spring has a lower end mounted on the first spring mounting member and an upper end mounted on a spring mounting portion disposed on the lower surface of the first ultrasonic transducer, whereby the upper head portion The compression of the first spring is adjusted according to the degree to which the first ultrasonic transducer fastened to the mounting portion of the upper head portion is fastened to the mounting portion of the upper head portion.

The upper end of the second spring is mounted on the second spring mounting member, and the lower end of the second spring is mounted on the spring mounting portion disposed on the upper surface of the second ultrasonic transducer, thereby forming the lower head portion. The compression of the second spring is adjusted according to the degree to which the second ultrasonic transducer fastened to the mounting portion is fastened to the mounting portion of the lower head portion.

As a result, the fryer according to the present invention agglomerates contaminant nodules in the oil by the standing waves generated inside the ceramic filter, and the contaminant nodules contained in the oil become larger. can prevent the filtration holes of the ceramic filter from being clogged. However, there is an effect that you can finish cleaning the ceramic filter.

1 is a block diagram showing a circulation structure for refining oil in a fryer according to the invention; FIG. FIG. 2 is an enlarged detailed view showing the structure of the filter device shown in FIG. 1; FIG. 2 is an exploded perspective view showing a part of the housing cut away;

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, in the fryer according to the present invention, a drain pipe L1 is connected to an outlet 12 of an oil tank 10, a circulation pipe L2 is branched from the drain pipe L1, a circulation pump 20 is attached to the circulation pipe L2, and circulation is performed. The pipe L2 is connected to the filter device 30, the oil in the oil tank 10 is supplied to the filter device 30 by the circulation pump 20, and the return pipe L3 connected to the filter device 30 is connected to the oil tank 10, and filtered by the filter device 30. The discharged oil is supplied to the oil tank 10 via the return pipe L3.

Referring to FIG. 2 , the filter device 30 has a ceramic filter 34 disposed inside a housing 31 , and a first ultrasonic transducer 35 and a first ultrasonic transducer 35 and a first ultrasonic transducer 35 in an upper head portion 32 and a lower head portion 33 of the housing 31 . Two ultrasonic transducers 36 are mounted respectively, and the first ultrasonic transducer 35 and the second ultrasonic transducer 36 are arranged to face each other, and the ultrasonic vibration of the first ultrasonic transducer 35 is generated. radiated toward the second ultrasonic transducer 36, the ultrasonic vibration of the second ultrasonic transducer 36 is radiated toward the first ultrasonic transducer 35, and the first ultrasonic transducer 35 and By connecting the second ultrasonic transducer 36 to the common ultrasonic oscillator 37, the same ultrasonic waves are simultaneously transmitted from the common ultrasonic oscillator 37 to the first ultrasonic transducer 35 and the second ultrasonic transducer 36. An oscillation signal is output, and a ceramic filter 34 is arranged between a first ultrasonic transducer 35 and a second ultrasonic transducer 36, and between the first ultrasonic transducer 35 and the ceramic filter 34. A first spring 38 is arranged, a second spring 39 is arranged between the second ultrasonic transducer 36 and the ceramic filter 34, and both ends of the ceramic filter 34 are connected to the first and second springs 38, 39, the circulation pipe L2 is drawn into the ceramic filter 34 through the housing 31, and the dirty oil supplied from the oil tank 10 is supplied into the ceramic filter 34 through the circulation pipe L2. A return pipe L3 is connected to the discharge port 331 of the head portion 33, and the oil filtered by the ceramic filter 34 is supplied to the oil tank 10 through the return pipe L3.

The filter device 30 having the configuration described above operates as follows.

If the same ultrasonic oscillation signal is output from the common ultrasonic oscillator 37 to the first ultrasonic transducer 35 and the second ultrasonic transducer 36 at the same time, the ultrasonic vibration of the first ultrasonic transducer 35 will be the second ultrasonic vibration. 1 spring 38 to the ceramic filter 34, and at the same time, the ultrasonic vibration of the second ultrasonic transducer 36 is given to the ceramic filter 34 via the second spring 39, thereby increasing the amplitude and A standing wave is generated inside the ceramic filter 34 by the ultrasonic vibration of the first ultrasonic transducer 35 and the ultrasonic vibration of the second ultrasonic transducer 36 having the same frequency.

Then, in the dirty oil supplied to the inside of the ceramic filter 34 by standing waves, contaminant nodules accumulate in the center of the inside of the ceramic filter 34, protein aggregates of fine unit structures Aggregation of polycyclic aromatic hydrocarbons is activated to prevent rapidly growing agglomerates from passing through the filtration pores of the ceramic filter 34 so that only the oil passes through the ceramic filter 34 and the oil is filtered. Here, the agglomerates inside the ceramic filter 34 are further denatured and solidified as carbonized nodules, so that the user can remove the ceramic filter 34 from the housing 31 after using the fryer. Cleaning of the ceramic filter 34 can be completed simply by taking it out and scraping off the carbonized nodules formed inside the ceramic filter 34 . Furthermore, since the ceramic filter 34 itself vibrates, the aggregates are prevented from sticking to the inner peripheral surface of the ceramic filter 34, and the filtration holes of the ceramic filter 34 are blocked by the aggregates during the oil circulation process. being prevented from being done.

Referring to FIG. 3, the housing 31 and the upper head part 32 are connected by a hinge 41, a locking device 42 is arranged on the opposite side of the hinge 41, and a hook 421 of the locking device 42 is mounted on the housing 31, The latch 422 of the locking device 40 is attached to the upper head portion 32 , and the locking device 42 locks the upper head portion 32 to the housing 31 .

The upper head portion 32 has a cylindrical mounting portion 321 formed in the center thereof, and a threaded portion 322 formed on the inner peripheral surface of the mounting portion 321 to be screwed around the first ultrasonic transducer 35 . A portion 351 is formed, and the first ultrasonic transducer 35 is mounted on the mounting portion 321 by a screwing method.

The lower head portion 33 is attached to the lower end portion of the housing 31, and has a cylindrical mounting portion 333 formed in the center thereof. A screwing part 362 is formed around the transducer 36, and the second ultrasonic transducer 36 is mounted on the mounting part 333 by a screwing method.

The ceramic filter 34 has an upper cap 342 and a lower cap 345 respectively screwed to the upper and lower ends of a filter body 341 formed in a cylindrical shape. is attached, a hole 344 into which the circulation pipe L2 is fitted is formed in the upper cap 342 , and a second spring mounting member 346 is attached to the center of the lower cap 345 .

The first spring 38 has its lower end mounted on the first spring mounting member 343 and its upper end mounted on the spring mounting portion 352 arranged on the lower surface of the first ultrasonic transducer 35. , the compression of the first spring 38 is adjusted according to the degree to which the first ultrasonic transducer 35 fastened to the mounting portion 321 of the upper head portion 32 is fastened to the mounting portion 321 of the upper head portion 32 .

The upper end of the second spring 39 is mounted on the second spring mounting member 346, and the lower end thereof is mounted on the spring mounting portion 364 arranged on the upper surface of the second ultrasonic transducer 36. The compression of the second spring 39 is adjusted according to the degree to which the second ultrasonic transducer 36 tightened to the mounting portion 333 of the lower head portion 33 is tightened to the mounting portion 333 of the lower head portion 33 .

As a result, the first ultrasonic transducer 35 fastened to the mounting portion 321 of the upper head portion 32 is loosened, the temporary pressure of the first spring 38 is removed, the locking of the locking device 42 is released, and the hinge is released. The upper head portion 32 is opened with 41 as the center. Next, after removing the ceramic filter 34 from the housing 31 and removing the upper cap 342 from the filter body 341 of the ceramic filter 34, the carbonized nodules generated inside the ceramic filter 34 are shaken off to clean the ceramic filter 34. will do.

After cleaning the ceramic filter 34, the filter body 341 of the ceramic filter 34 is connected to the upper cap 342, the ceramic filter 34 is placed in the housing 31, and the upper head portion 32 is locked to the housing 31 using the locking device 42. After the coupling, when the first ultrasonic transducer 35 that is fastened to the mounting portion 321 of the upper head portion 32 is tightened, the first spring 38 supports the ceramic filter 34 with an appropriate elastic force.

10 oil tank 12 discharge port 20 circulation pump 30 filter device 31 housing 32 head portion 321 mounting portion 322 threaded portion 33 lower head portion 331 discharge port 333 mounting portion 334 threaded portion 34 ceramic filter 341 filter main body 342 upper cap 343 first Spring mounting member 344 Hole 345 Lower cap 346 Second spring mounting member 35 First ultrasonic transducer 351 Threaded portion 352 Spring mounting portion 36 Second ultrasonic transducer 362 Threaded portion 364 Spring mounting portion 37 Common ultrasonic oscillator 38 First spring 39 Second spring 40 Lock device 41 Hinge 42 Lock device 421 Hook 422 Hook L1 Drain pipe L2 Circulation pipe L3 Return pipe

Claims (7)

A drain pipe (L1) is connected to an outlet (12) of the oil tank (10), a circulation pipe (L2) is branched from the drain pipe (L1), and a circulation pump (20) is attached to the circulation pipe (L2), The circulation pipe (L2) is connected to the filter device (30), the oil in the oil tank (10) is supplied to the filter device (30) by the circulation pump (20), and the return pipe (30) connected to the filter device (30) L3) is connected to the oil tank (10), and the oil filtered by the filter device (30) is supplied to the oil tank (10) through the return pipe (L3),
The filter device (30) has a ceramic filter (34) disposed inside a housing (31), and a first ultrasonic vibrator in an upper head portion (32) and a lower head portion (33) of the housing (31). (35) and a second ultrasonic transducer (36) are mounted respectively, and arranged so that the first ultrasonic transducer (35) and the second ultrasonic transducer (36) face each other to form the first The ultrasonic vibration of the ultrasonic transducer (35) is radiated toward the second ultrasonic transducer (36), and the ultrasonic vibration of the second ultrasonic transducer (36) is the first ultrasonic vibration (35), and the first ultrasonic transducer (35) and the second ultrasonic transducer (36) are coupled to a common ultrasonic oscillator (37) to generate a common ultrasonic wave. The same ultrasonic oscillation signal is simultaneously output from the oscillator (37) to the first ultrasonic transducer (35) and the second ultrasonic transducer (36), and the first ultrasonic transducer (35) and the second ultrasonic transducer (36) A ceramic filter (34) is arranged between the two ultrasonic transducers (36), and a first spring (38) is arranged between the first ultrasonic transducer (35) and the ceramic filter (34). A second spring (39) is arranged between the second ultrasonic transducer (36) and the ceramic filter (34), and both ends of the ceramic filter (34) are connected to the first and second springs. (38, 39), the circulation pipe (L2) is drawn into the interior of the ceramic filter (34) through the housing (31), and the dirty oil supplied from the oil tank (10) flows into the circulation pipe (L2). ) into the ceramic filter (34), and the return pipe (L3) is connected to the outlet (331) of the lower head (33) to return the oil filtered by the ceramic filter (34). A fryer, characterized in that it is fed to an oil tank (10) via a pipe (L3). The housing (31) and the upper head part (32) are connected by a hinge (41), a locking device (42) is arranged on the opposite side of the hinge (41), and a latch (421) of the locking device (42) is provided. ) is attached to the housing (31), the latch (422) of the locking device (40) is attached to the upper head (32), and the locking device (42) locks the upper head (32) into the housing (31). 2. The fryer of claim 1, wherein the fryer is locked to the . The upper head part (32) has a cylindrical mounting part (321) formed in the center, and a threaded part (322) is formed on the inner peripheral surface of the mounting part (321). 1 or 2, characterized in that a threaded part (351) is formed around (35), and the first ultrasonic transducer (35) is mounted to the mounting part (321) by a screwing method. 2 flyer. The lower head part (33) is attached to the lower end part of the housing (31), and has a cylindrical mounting part (333) formed in the center. ) is formed, a threaded portion (362) is formed around the second ultrasonic transducer (36), and the second ultrasonic transducer (36) is screwed to the mounting portion (333). 2. The fryer of claim 1, wherein the fryer is mounted. In the ceramic filter 34, an upper cap 342 and a lower cap 345 are screwed to the upper and lower ends of a filter body 341 formed in a cylindrical shape. A first spring mounting member (343) is attached in the center, a hole (344) is formed in the upper cap (342) for fitting the circulation pipe (L2), and a second spring is placed in the center of the lower cap (345). 2. The fryer of claim 1, wherein a mounting member (346) is attached. The first spring (38) has a lower end mounted on the first spring mounting member (343) and an upper end mounted on the lower surface of the first ultrasonic transducer (35). 352), the first ultrasonic transducer (35) tightened to the mounting section (321) of the upper head section (32) is tightened to the mounting section (321) of the upper head section (32). 2. A fryer according to claim 1, characterized in that the compression of the first spring (38) is adjusted according to the degree of tension. The upper end of the second spring (39) is mounted on the second spring mounting member (346), and the lower end of the spring mounting portion (364) is disposed on the upper surface of the second ultrasonic transducer (36). ), the second ultrasonic transducer (36) tightened to the mounting portion (333) of the lower head portion (33) is tightened to the mounting portion (333) of the lower head portion (33). 2. A fryer according to claim 1, characterized in that the compression of the second spring (39) is adjusted depending on the degree.

Images