KR101816544B1 - Food processing Cooking device - Google Patents

Abstract

The present invention relates to a food processing and cooking appliance, and more particularly to a food processing cooking appliance that reduces noise and vibration generated during grinding and cooking during cooking of soybean, soybean, soybean oil, bean juice, juice using food materials such as various cereals and fruits The present invention relates to a food processing and cooking appliance which is configured to discharge generated heat and carbon powder to the outside to increase the stability and efficiency of the device.
To this end, there is provided a motorcycle comprising: a housing part constituted by a combination of a housing part, an upper housing and a lower housing; and a power part for transmitting power generated in the motor, wherein a dustproof part for reducing the generated vibration and noise, And a discharging portion for discharging the toner to the outside.

Description

{Food processing Cooking device}

The present invention relates to a food processing and cooking appliance, and more particularly to a food processing cooking appliance that reduces noise and vibration generated during grinding and cooking during cooking of soybean, soybean, soybean oil, bean juice, juice using food materials such as various cereals and fruits The present invention relates to a food processing and cooking appliance which is configured to discharge generated heat and carbon powder to the outside to increase the stability and efficiency of the device.

Generally, tofu contains unsaturated fatty acids, low calorie high protein foods, and it is not only good for diet because it is full of fat, but also protects the stomach wall by the lecithin ingredient contained in the tofu, so that the stomach is comfortable, And the oligosaccharide component helps prevent constipation by promoting the intestinal motility.

In order to prepare such tofu dishes, porridge, rice, juice, soy milk, bean jam, etc., containers such as pan, pot and the like are used to use food materials such as soybean, various grains and fruits. And a cooking device for cooking are separately used.

In other words, when cooking soymilk, tofu, bean curd and the like in a conventional manner, there are disadvantages that it is inconvenient and time-consuming as cooking is performed manually.

Recently, there has been developed a cooker which can be easily cooked in one device at home, and devices such as a household soymilk tofu maker are used for cooking soy milk, tofu, and beige at various stages by hand It is being used to easily cook in one device at home.

The conventional cooker for cooking the head etc. is disclosed in Korean Utility Model Registration No. 20-0338580, and according to the disclosed conventional apparatus, a food material is placed in a cooking container, heat is applied from the bottom or inside of the container, Is crushed and cooked while rotating by a rotary blade.

However, such a conventional apparatus is inconvenient for discharging the cooked food to the outside because the food and the power unit are integrally combined in the processing machine, and when the food is cooked, the vibration is severe, There is a problem that the sound is not transmitted properly and the noise is generated severely.

Another conventional technique for solving this problem is disclosed in Korean Patent Registration No. 10-1583799, entitled " Food Processing Machine ", which is a device in which a container portion and a power portion are independently arranged and a container portion is separated from a power portion, Convenience is improved in managing cooked food.

However, such a conventional apparatus also has a problem in that when the food is cooked, vibrations due to the power portion are so severe that the force of crushing or the like of the inner dish is not transmitted properly, and noise is generated, thereby causing discomfort during cooking.

On the other hand, the power unit performs the operation of crushing the foodstuff using the power by the rotational force of the motor. Most of the drive motor uses a universal motor (universal motor).

Such a universal motor has a disadvantage in that it has a high number of no-load revolutions, a large electric noise, a mechanical noise, and a short life span, even though the high-speed rotation is easily obtained and the polarity of the voltage is changed.

In addition, a carbon brush is used to supply electricity to the commutator. However, the commutator has a minimal friction with the commutator, but is worn out little by little and generates carbon powder.

In addition, since the power unit utilizes the rotational force of the driving motor within a limited space, heat generated by driving of the motor can not be generated.

The apparatus according to the prior art can not exhaust the heat generated by the driving motor and the carbon powder to the outside in a timely manner,

There has been a demand for a device capable of minimizing noise and vibration according to the conventional technique and increasing the stability by discharging heat and carbon powder generated in the power portion to the outside.

Korean Registered Utility Model No. 20-0338580 (registered on May 1, 2004) Korean Registered Patent No. 10-1583799 (Registered on April 1, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a food processing and cooking appliance which is configured to reduce noise and vibration generated in a cooking device and thereby perform stable grinding and cooking.

It is another object of the present invention to provide a food processing cooking appliance in which heat generated by a motor of a power unit and carbon powder are discharged to the outside to increase the stability of the equipment.

According to an aspect of the present invention, there is provided a food processing and cooking device including a container unit, a housing unit configured to engage an upper housing and a lower housing detachably supporting the container unit, And a power section which is constituted by a base bracket and detachably mounted on the housing section and which transmits power generated by the motor by using a rotary member connected to a rotary blade inside the container section.

And a dustproof portion for reducing vibration and noise generated in the crushing operation of the motor and the rotary blade of the power unit.

At this time, the dustproof portion includes a first dustproof member fitted between the base bracket and the lower housing, the first dustproof member being fitted in the dustproof groove formed along the outer circumferential surface of the base bracket and fixed to penetrate the dustproof coupling of the lower housing. And a second anti-vibration member formed to penetrate through the bottom surface of the lower housing and protrude downward.

On the other hand, the first anti-vibration member includes a fitting mat having the same size as the thickness of the vibration-proof groove, an upper mat extending in the upper portion of the fitting mat to have a thickness and positioned in contact with the upper surface of the base bracket, And a lower mat extending from the lower portion to be in contact with the bottom surface of the base bracket.

The dustproof coupling base is formed to protrude from the upper surface of the lower housing so that the base bracket can be positioned with an interval. The vibration proof coupling base includes a fitting rod penetrating the first vibration preventing member, A plurality of support rods formed in a radial direction while supporting the lower surface of the member, and a spacing bar supporting the lower portion of the support rods.

The second anti-vibration member is composed of a fitting bar penetrating the lower housing and having a gut protrusion, and a dust-proof mat extending to a lower portion of the fitting bar and protruding to a lower portion of the lower housing and having an absorbing sphere shape.

The dustproof portion may have an outer surface receiving groove formed in a side portion of the upper housing and having a size and shape corresponding to the outer surface of the container portion and having a size and shape corresponding to the lower end portion of the container portion, And a lower seating groove formed at a lower portion thereof.

The lower seating groove is further formed with a plurality of step recesses into which a plurality of fitting steps protruded from the lower end of the container are slidably inserted.

The container unit further includes a fixing latch protruding from a cover covering the upper portion, and the outer surface mounting groove is further formed with a latch groove through which the fixing latch is inserted and fixed.

On the other hand, the food processing cooking apparatus further comprises a heat generating unit for generating heat from the motor of the power unit and a discharge unit for discharging the carbon powder to the outside.

At this time, the discharging portion includes a first discharging fan positioned above the motor box and forming a vortex according to the driving; And a motor cover including a first discharge fan therein and having a duct flow path for guiding an air flow to the outside.

Further, it may further comprise a second discharge fan at an end of the duct flow path as required.

Meanwhile, the end portion of the duct flow path is formed to communicate with an exhaust port formed at one side of the upper housing.

As described above, the food processing cooking appliance according to the present invention has the dustproof portion, and has the effect of minimizing the noise and vibration generated in the cooker, thereby achieving stable grinding and cooking operation and increasing the efficiency of the appliance.

In addition, it has an effect of increasing the stability of the cooking appliance by discharging heat and carbon powder generated from the power portion to the outside through the discharge portion.

1 is an exploded perspective view showing a food processing cooking apparatus according to the present invention.
FIG. 2 is a perspective view showing a combined state of a food processing appliance according to the present invention. FIG.
FIG. 3 is a schematic cross-sectional view showing a dustproof portion of a food processing and cooking appliance according to the present invention.
4 is an enlarged partial perspective view showing the first anti-vibration member of the dustproof portion according to FIG.
FIG. 5 is a view illustrating a state in which a container portion and a housing portion are separated to show another dustproof portion of the food processing and cooking appliance according to the present invention.
6 is an exploded perspective view showing a power section and a discharge section of the food processing cooking apparatus according to the present invention.
7 is a schematic view showing the operation of the discharge portion of the food processing appliance according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a food processing machine according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a food processing and cooking apparatus according to the present invention, and FIG. 2 is a perspective view showing a combined state of the food processing and cooking apparatus according to the present invention.

As shown in the figure, the food processing cooking apparatus according to the present invention is used for cooking tofu dishes, porridge, rice, juice, soybean milk, bean curd and the like using a rotary blade during cooking using food materials such as soybean, It is possible to reduce noise and vibration generated during grinding operation to the minimum while exhausting the generated heat and carbon powder to the outside, thereby improving the stability and efficiency of food processing equipment .

A food processing cooker 1 according to the present invention includes a container unit 100 having a substantially internal space and an upper housing 200a and a lower housing 200b which detachably support the container unit 100, And a base bracket 310 provided with a motor box 330. The base bracket 310 is removably mounted on the inner space of the housing part 200, And a power unit 300 that transmits power generated by the motor 320 using a rotating member 340 such as a belt connected to the rotating blade 130 of the motor.

A dustproof part 400 for minimizing noise and vibration generated by the power unit 300, a discharge unit 400 for discharging heat and carbon powder generated in the power unit 300 to the outside, 500). ≪ / RTI >

1 and 2, the structure of a food processing and cooking appliance 1 according to the present invention will be described below.

Preferably, the container unit 100 includes a container body 110 having an inner space with an upper opening and a handle 111 on an outer side, the container body 110 having a size large enough to receive food ingredients for cooking, And a container cover 120 that covers the inner space opened at the top of the container body 110 to seal the container.

If necessary, the container base 140 is provided with a heater (not shown) for performing a cooking operation by applying heat to the ingredients in the space inside the container body 110.

The heater may be formed on one side of the housing part 200 separately from the container part 100 as needed.

The container unit 100 is provided with a temperature sensing unit (not shown) capable of measuring a temperature to control an appropriate temperature inside the container body 110.

The rotating body 130 is rotatably connected to the power unit 300. The rotating body 130 is used to crush the food in the inner space using the rotational force transmitted from the power unit 300, .

The housing part 200 is formed of a combination of an upper housing 200a and a lower housing 200b. The power housing 300 is formed on the inner space formed by the upper housing 200a and the lower housing 200b, The container unit 100 is detachably mounted to the seating recesses 430 and 440 formed by the upper housing 200a.

The upper housing 200a has an outer panel and allows the user to control the cooking operation using the outer panel.

The power unit 300 provides power for rotating the rotary blade 130 of the container unit 100 to perform a crushing operation on the food material. The power unit 300 includes a base bracket 310 and a motor box 330 And a rotatable member 340.

Preferably, the base bracket 310 has a size and shape that can be seated and spaced from the upper portion of the lower housing 200b.

The motor box 330 is fixed to the upper portion of the base bracket 310. The motor box 330 includes a motor 320 generating power therein and has a box shape with an upper portion opened.

The rotation member 340 is positioned on the space between the base bracket 310 and the lower housing 200b and transmits the rotation force of the motor 320 to the container unit 100, Or gear structure and transmits the rotational force of the motor 320 to the rotary blade 130 of the container unit 100 in accordance with the position and the combination of these positions.

The power unit 300 includes a motor 320 and a rotating member 340 and an electric unit (not shown) for operating the food processing appliance 1 according to the present invention And preferably the electric field part is fixedly coupled to one side of the motor box 330 or the base bracket 310. [

As described above, the food processing appliance 1 according to the present invention including the container unit 100, the housing unit 200, and the power unit 300 includes a container unit 100 including a food ingredient therein Is placed on the upper side of the housing part 200 and the grinding operation is performed on the foodstuff using the power generated by the motor 320 of the power unit 300 or the cooking operation is performed by a heater .

Meanwhile, the food processing and cooking appliance 1 configured as described above prevents vibration and noise generated by the rotation of the motor 320 of the power unit 300 beforehand and reduces it to a minimum, thereby improving the stability and efficiency of the cooking device The dust-proofing unit 400 is provided.

The discharge unit 500 further includes a discharge unit 500 for discharging heat and carbon powder generated when the motor 320 of the power unit 300 rotates, thereby further enhancing the stability of the cooking apparatus.

FIG. 3 is a schematic cross-sectional view showing a dustproof portion of the food processing and cooking appliance according to the present invention, and FIG. 4 is an enlarged partial perspective view showing a first dustproof member of the dustproof portion according to FIG.

1 to 4, the food processing machine 1 according to the present invention will be described in detail as follows.

The dustproof part 400 is configured to reduce vibration and noise generated in the crushing operation of the motor 320 of the power unit 300 and the rotary blade 130 of the container unit 100 .

The vibration preventing part 400 includes a first vibration preventing member 410 provided on the base bracket 310 to reduce vibration and noise and a second vibration preventing member 410 provided on the bottom surface of the lower housing 200b, And a second anti-vibration member 420 for reducing vibrations and noise from the table on which the first anti-vibration member is placed.

At this time, the first anti-vibration member 410 is inserted into the plurality of anti-vibration grooves 311 formed at intervals along the outer peripheral surface of the base bracket 310 to reduce vibration and noise. And is fixed to the upper portion of the anti-vibration coupling 250 formed while having a length, i.e., a height.

Accordingly, the first anti-vibration member 410 is mounted while being in contact with the base bracket 310 and the lower housing 200b so that the vibration transmitted to the base bracket 310 during the operation of the motor 320 of the power unit 300 And noise.

The upper surface of the base bracket 310 and the lower housing 200b have a predetermined distance a according to the height of the vibration isolating coupling 250. The vibration and the noise can be reduced once more and the efficiency of the dustproof part 400 can be increased.

The second anti-vibration member 420 is formed to protrude downwardly while penetrating through the through hole formed in the bottom surface of the lower housing 200b.

The portion protruding downward as described above is in contact with the bottom surface of the table or the like on which the food processing appliance 1 according to the present invention is placed and reduces vibration generated in the power unit 300.

Preferably, the first anti-vibration member 410 and the second anti-vibration member 420 are made of a rubber or iron-based alloy material excellent in load load, absorption amount of vibration energy, and excellent moldability and adhesion.

The first anti-vibration member 410 has a dumbbell shape so as to be inserted into the vibration-preventing groove 311 of the base bracket 310 in the lateral direction.

More specifically, the first anti-vibration member 410 includes a fitting mattress 411 having the same thickness and size as the anti-vibration slot so that the anti-vibration slot 311 can be inserted therein, and the fitting mattress 411 having a thickness, The upper mat 412 is formed to extend from the upper portion of the base bracket 310 and is disposed in contact with the upper surface of the base bracket 310. The upper mat 412 has a thickness, And the lower mat 413 is positioned.

The second anti-vibration member 420 is inserted through the through hole 260 of the lower housing 200b. The second anti-vibration member 420 has a length enough to pass through the through hole 260, And a dustproof mat 423 formed integrally with the lower portion of the fitting rod 421 so as to protrude from the lower portion of the lower housing 200b .

Preferably, the dustproof mat 423 is adsorbed and fixed in contact with a bottom surface of a table or the like on which the food processing appliance 1 is placed.

The dust-proof coupling base 250 formed on the lower housing 200b is fixed to the first vibration-proof member 410 and is protruded to have a length and a height on the upper surface of the lower housing 200b. So that the base bracket 310 is spaced apart from the upper surface of the lower housing 200b.

The anti-vibration coupling member 250 includes a fitting bar 251, a support 252, and a spacer 253.

The fitting rod 251 passes through the first anti-vibration member 410 to fix the position of the first anti-vibration member 410.

The support rods 252 extend radially from the bottom surface of the first vibration-preventive member 410 while supporting the bottom of the first rods 251.

The radially formed support 252 reduces the minute vibration and noise transmitted through the first anti-vibration member 410 to further maximize vibration and noise reduction efficiency.

The interval rods 253 support the lower portion of the supporter 252 and the length of the interval rods 253 is equal to the distance a between the base bracket 310 and the lower housing 200b ).

As described above, the food processing appliance 1 according to the present invention is provided with the first anti-vibration member 410 and the second anti-vibration member 420 of the anti-vibration unit 400, 320 to minimize and reduce the vibration and noise generated by the food processing machine 1, thereby making it easier for the user to use the machine during the crushing operation or the cooking operation using the food processing machine 1.

Meanwhile, FIG. 5 is a view illustrating a state in which a container portion and a housing portion are separated to show another dustproof portion of the food processing and cooking appliance according to the present invention.

As shown in the figure, the vibration-proof portion 400 of the food processing and cooking appliance 1 according to the present invention further reduces the vibration and noise generated in the power portion 300, 200 to minimize movement of the container unit 100 to maximize the stability of the container unit 100.

More specifically, the dustproof portion 400 has an outer seating groove 430 formed in a side portion of the upper housing 200a having a size and shape corresponding to the outer surface of the container portion 100, .

The dustproof part 400 has a size and a shape corresponding to the container base 140 which is the lower end of the container part 100. The dustproof part 400 includes a lower seating groove 440 ).

The outer seating groove 430 and the lower seating groove 440 may prevent movement of the container unit 100 when the container unit 100 is coupled to the housing unit 200 and may reduce vibrations and noise, The movement of the container unit 100 due to the vibration generated during the grinding operation or the cooking operation is minimized, thereby maximizing the stability of the apparatus.

The outer seating groove 430 and the lower seating groove 440 may be made of a rubber material or an iron alloy material along the rim which is in contact with the container portion 100 as needed so as to further reduce noise and vibration during seating, And a cushioning member of the cushioning member.

In addition, a plurality of fitting steps 141 protruding in the longitudinal direction are formed on the lower part of the container unit 100, that is, the outer surface of the container base 140. The fitting recesses 440 are formed in the fitting step 141, A plurality of step grooves 441 are further formed at positions and sizes where the slides can be inserted.

This prevents vibrations and noises during cooking and stably fixes the container unit 100 to the housing unit 200.

The container unit 100 includes a container cover 120 having a size capable of covering the opened top of the container body 110 as described above. A protruding fixed latch 121 is further formed.

An upper portion of the outer seating groove 430 on which the outer surface of the container unit 100 is seated is provided with a catching groove 450 into which the fixing catch 121 is inserted and fixed at a position corresponding to the fixing catch 121 .

As described above, the dustproof portion 400 of the food processing cooker 1 according to the present invention includes the first dustproof member 410, the second dustproof member 420, the outer surface mounting groove 430, the lower mounting groove 440 And the latching groove 450 to minimize vibrations and noise generated by the motor 320 of the power unit 300 and to minimize the movement of the container unit 100, Maximize.

FIG. 6 is an exploded perspective view showing a power section and a discharge section of the food processing and cooking apparatus according to the present invention, and FIG. 7 is a schematic view showing the operation of the discharge section of the food processing and cooking apparatus according to the present invention.

As shown in the figure, the food processing and cooking appliance 1 according to the present invention is configured such that the heat H generated by the motor 320 of the power unit 300 and the carbon powder C are discharged to the outside, And a discharging unit 500 for increasing the height of the discharging unit 500.

The discharge unit 500 is formed on the upper side of the motor box 330 and includes a first discharge fan 510 and a motor cover 520 having a duct flow path 521.

The first discharge fan 510 is disposed at an upper portion of a motor box 330 having an internal space and a motor 320 therein. The first discharge fan 510 is connected to an axis of the motor 320, A vortex is formed on the inner space of the motor box 330 to transfer the heat H and the carbon powder C to the upper side of the motor box 330.

The motor cover 520 has a duct flow path 521 that includes the first discharge fan 510 and induces an air flow. The first discharge fan 510 has a duct flow path 521, The heat H and the carbon powder C transferred to the upper side of the motor box 330 are transferred along the duct flow path 521 and discharged to the outside.

At this time, the end of the duct flow path 521 preferably communicates with the exhaust port 210 formed at one side of the upper housing 200a, and the heat H transferred to the duct flow path 521 and the carbon powder C are discharged to the outside of the food processing appliance 1 through the exhaust port 210.

Accordingly, the heat H generated by the driving of the motor 320 and the carbon powder C are discharged to the outside, thereby securing the stability in accordance with the operation of the motor.

A second exhaust fan 530 for increasing the air flow rate inside the duct flow path 521 is provided at a position where the end of the duct flow path 521, that is, the position communicating with the exhaust port 210, do.

As described above, by the discharge unit 500 including the first discharge fan 510, the motor cover 520 having the duct flow path 521, and the second discharge fan 530, The carbon powder generated in the motor can be discharged to the outside, thereby increasing the stability of the apparatus, thereby preventing malfunction and increasing the efficiency of the cooking operation.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is not.

1: Food processing and cooking equipment
100: container part 200: housing part
200a: upper housing 200b: lower housing
210: exhaust port 250: anti-
300: Power unit 310: Base bracket
311: dustproof groove 320: motor
330: motor box 400: dustproof part
410: first anti-vibration member 420: second anti-vibration member
430: outer seating groove 440: lower seating groove
450: latching groove 500:
510: first exhaust fan 520: motor cover
521: duct duct 530: second exhaust fan

Claims (10)

(100) having a rotary blade (130) installed therein and storing the ground foodstuff;
A housing part 200 composed of an upper housing 200a detachably supporting the container part 100 on the outer surface and a lower housing 200b coupled to a lower end of the upper housing 200a;
A lower end of the fitting rod 251 formed to extend through the first vibration preventing member 410 and penetrating through the first vibration preventing member 410 in an upward direction, A plurality of support rods 252 formed in a radial shape while supporting the bottom surface of the first vibration preventing member 410 and supporting the lower portion of the support roster 252, One or more dustproof coupling bases 250 formed integrally with a reinforcing plate fixed to a bottom surface of the lower housing 200b in a vertical direction, the spacing rods 253 having a predetermined length;
And at least one first vibration preventing member 410 for reducing vibrations and noise transmitted from the upper portion of the first vibration preventing member 410, )Wow;
A base bracket 310 fixed to one or more anti-vibration grooves 311 formed along an outer circumferential surface of the first anti-vibration member 410 in the lateral direction;
A motor 320 installed at an upper portion of one side of the base bracket 310 in a direction opposite to a position where the container unit 100 is seated and generating power according to a user's operation;
A power unit that is detachably mounted to the housing unit 200 and transmits power generated by the motor 320 to the rotary blade 130 using a rotary member provided at a lower end of the base bracket 310 300;
And has a hook protrusion 422 which is inserted through the through hole 260 of the lower housing 200b and has a length that can pass through the through hole 260 and is fixed to the upper surface of the lower housing 200b, And a dustproof mat 423 formed integrally with the lower portion of the lower housing 200b to protrude downward from the lower end of the lower housing 200b. And at least one second anti-vibration member (420) protruding downwardly as the first anti-vibration member
The vibration and noise transmitted to the base bracket 310 during the operation of the motor 320 of the power unit 300 are primarily reduced while passing through the first anti-vibration member 410;
The vibration and noise are reduced secondarily through the constant interval (a) formed between the base bracket 310 and the vibration-proof mount 250;
And the vibration and noise are reduced in a third order while passing through the second vibration preventing member (420) installed to be adsorbed on the bottom surface on which the lower housing (200b) is placed.
The method according to claim 1,
Wherein each of the first vibration-
A fitting mat having the same thickness and size as those of the vibration dumping groove so as to be inserted into the vibration dumping groove and a fixing plate having a predetermined thickness at the upper and lower portions of the fitting groove formed on the outer peripheral surface of the middle portion, And an upper mat extending from the upper surface of the fitting mat to be in contact with the upper surface of the base bracket and a lower mat extending from the lower surface of the fitting mat to have a predetermined thickness and positioned in contact with a bottom surface of the base bracket Wherein the dumbbell shape is formed in a shape of a dumbbell.
delete delete The method according to claim 1,
An outer surface receiving groove having a size and shape corresponding to the outer surface of the container portion is formed on a side portion of the upper housing;
And a lower seating groove having a size and shape corresponding to the lower end of the container is formed on the lower portion of the upper housing.
6. The method of claim 5,
The lower seating groove
Wherein a plurality of step grooves are formed in which a plurality of fitting steps protruding from the lower end of the container portion are slidably inserted.
6. The method of claim 5,
The container unit further includes a fixing latch projecting from a cover covering the upper portion,
Wherein the outer surface receiving groove is further formed with a catch groove in which the fixing catch is inserted and fixed.
The method according to claim 1,
And a discharge unit for discharging the heat generated by the motor of the power unit and the carbon powder to the outside;
The discharge unit includes: a first discharge fan positioned at an upper portion of the motor to form a vortex according to driving; And a motor cover including the first discharge fan therein and having a duct flow path for guiding an air flow to the outside.
9. The method of claim 8,
And a second discharge fan at an end of the duct flow path.
9. The method of claim 8,
Wherein an end of the duct channel is formed to communicate with an exhaust port formed at one side of the upper housing.

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