KR101660720B1 - A refrigerator - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerator, and more particularly, to a refrigerator for preventing vibration generated in a chill fan unit from spreading to components installed around the chill fan unit.

In order to achieve the above object, the present invention provides a refrigerator comprising: a main body having a storage chamber; A cool air generating chamber provided in the main body to generate cool air to be supplied to the storage chamber; A cool air fan unit provided inside the cool air generating chamber; And a vibration reduction member provided on the cooling fan unit to reduce vibration to prevent vibration generated during operation of the cooling fan unit from being transmitted to the main body.

A cooling fan unit, a vibration reduction member,

Description

A refrigerator {A REFRIGERATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerator, and more particularly, to a refrigerator capable of preventing noise caused by vibration generated in a fan unit.

A refrigerator is a household appliance for storing refrigerated or frozen storage using a refrigerant cycle. The refrigerator includes a main body having a refrigerator compartment and a freezer compartment, a door for opening and closing the refrigerator compartment and the freezer compartment, and an evaporator for generating cold air and a compressor for compressing the refrigerant.

The cool air generated in the evaporator is guided by a cool air fan unit installed adjacent to the evaporator and flows into the storage room such as the refrigerator compartment or the freezer compartment.

The cooling fan unit includes a fan, a fan motor for driving the fan, and a motor support unit for supporting and supporting the fan motor. When the fan rotates due to the operation of the motor, And vibration occurs due to driving of the motor.

Since such vibration is inevitably caused by the driving of the fan and the motor, the occurrence of the vibration itself can not be prevented. In the conventional refrigerator, the vibration of the fan and the motor is spread to the surrounding components, There has been a problem in that it occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator for preventing vibrations generated in a chill fan unit from spreading to components installed around a chill fan unit.

It is another object of the present invention to provide a refrigerator which can prevent noise from spreading and reduce noise during operation of the refrigerator.

According to an aspect of the present invention, there is provided a refrigerator comprising: a main body having a storage chamber; a cool air generating chamber provided in the main body to generate cool air to be supplied to the storage chamber; And a vibration reducing member provided on the fan unit to reduce vibration to prevent vibration generated during the operation of the cooling fan unit from being transmitted to the main body.

Wherein the cooling fan unit includes a cooling fan, a fan motor for rotating the cooling fan, and a motor support member to which the fan motor is mounted, wherein the vibration reduction member forms a rear wall of the motor support member and the cool- And is disposed between the panel members.

The motor support member includes a body portion;

A motor fixing hole formed in the body portion to fix the motor;

And a support leg part extending radially from the outer circumferential surface of the body part and coupled with the vibration reduction member.

The support legs are arranged in a plurality of spaces,

The support leg portion includes an extension extending from an edge of the body portion;

And an insertion portion provided at an end of the extended portion and into which the vibration reducing member is inserted.

And the insertion portion includes an opening for partially opening the vibration reduction member so that the vibration reduction member can be inserted or removed.

The vibration reduction member is provided in the form of a washer and the vibration reduction member is provided with a coupling groove for coupling with the support leg.

The vibration reduction member is formed of a rubber material.

And the width of the coupling groove has a size corresponding to the width of the insertion portion.

Wherein the insertion portion is provided in a circular shape having an opening at one side thereof and a size of a diameter between a portion of the surface of the coupling groove and a portion on the opposite side from the portion of the surface of the coupling groove has a size corresponding to the diameter of the insertion portion .

Wherein the width of the opening is smaller than the diameter of a portion of the surface of the coupling groove and a portion on the opposite side from the portion of the surface of the coupling groove and is elastically shrunk and deformed when the vibration reduction member passes through the opening, And when the member passes through the opening, it is elastically deformed.

The front and rear sides of the coupling groove are protruded upward from the coupling groove so that when the vibration reduction member is coupled to the insertion portion, the vibration reduction member is prevented from being separated from the insertion portion by being contacted with the vicinity of the insertion portion .

And a fixing member inserted into the vibration reduction member and coupled to the panel member to fix the cooling fan unit to the panel member.

And a guide panel disposed between the inner wall of the fan housing and the cool air fan unit to form a cool air flow path inside the fan housing.

A cool air inlet formed in the fan housing to receive cool air;

And a cool air guide hole formed in the guide panel and formed at a position corresponding to a position of the cool air inlet and the air inlet of the fan.

The panel member includes a first panel member including a cool air discharge port for guiding cool air discharged from the cool air fan unit to move to an upper portion of a rear wall of the storage chamber;

And a second panel member provided on an inner wall of the first panel member and coupled with the vibration reduction member to support the cooling fan unit.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1, the refrigerator according to the present invention includes a main body 1 including a storage compartment 10 such as a freezing compartment 11 and a refrigerating compartment 12, a refrigerating compartment door 14 for opening and closing the refrigerating compartment and the freezing compartment, respectively, And a freezer compartment door 15.

The dispenser 20 is provided with a take-off lever 22 for generating a water takeout signal. The water take-out lever 22 is provided at the front of the freezing chamber door.

The refrigerator compartment includes a shelf 30 and a storage drawer 32 for storing and storing the stored contents. The rear of the shelf 30 and the storage drawer 32 form an upper portion of the rear wall of the refrigerator, An upper duct 100 is provided and the upper duct 100 is formed with a discharge guide hole 102 for guiding the discharge of cold air.

A cool air fan unit 400 for guiding the cool air toward the upper duct 100 is provided under the upper duct 100.

FIG. 2 shows a state in which the shelf 30 and the storage drawer 32 are removed from the refrigerating chamber 12.

In this state, the upper duct 100 is positioned on the upper part of the rear wall of the refrigerating chamber 12.

A lower portion of the upper duct 100 is provided with an evaporator 200 for generating cold air and a chill fan unit 400 for guiding chilled air of the evaporator toward the upper duct 100.

A panel member 300 is provided on the front surface of the cool air fan unit 400 and the evaporator 200 to prevent the cool air fan unit 400 and the evaporator 200 from being exposed to the outside, A communication hole 330 for allowing air to flow into the evaporator 200 is formed between the lower portion of the refrigerating compartment 12 and the lower surface of the refrigerating compartment 12.

3, the cool fan unit 400 is disposed behind the panel member 300, and the cool fan unit 400 is accommodated in the fan housing 500. As shown in FIG.

Therefore, a space for accommodating the cooling fan unit 400 and a space for allowing cooling air to flow are formed between the fan housing 500 and the panel member 300.

The cooling fan unit 400 includes a cooling fan 401 provided in the form of a sirocco fan or a turbo fan, a fan motor 410 coupled to the cooling fan 401 to rotate the cooling fan 401, And a motor support member 420 on which the fan motor 410 is mounted.

A protrusion 411 protruding in a radial direction is provided on the rear edge of the fan motor 410 and the protrusion 411 is coupled to the motor support member 420.

The motor support member 420 includes a plate-shaped body portion 421, a motor fixing hole 422 formed in the body portion 421 and fixed by inserting a certain portion of the fan motor 410, And a support leg portion 423 extending radially from the rim of the base portion 421.

Herein, the support leg portion 423 is provided with a vibration reducing member 600 for preventing the vibration transmitted from the fan motor 410 and the cooling fan 401 itself to the motor support member 420 from being transmitted to the adjacent component Is installed.

The vibration reduction member 600 is fitted to the support leg portion 423 and the vibration reduction member 600 fitted to the support leg portion 423 is inserted into the panel member 300 again Respectively.

Therefore, since the motor support member 420 is connected to the vibration reduction member 600 rather than being directly connected to the panel member 300, the vibration transmitted to the motor support member 420 is transmitted to the panel member 300 300, but is attenuated or extinguished by the vibration reduction member 600.

The support legs 423 are formed on the rim of the body portion 421 so as to be spaced apart from each other so that the motor support member 420 can be stably fixed to the panel member 300 do.

The panel member 300 is exposed to the storage chamber and includes a cold air discharge port 311 for guiding cold air discharged from the cold air fan unit 400 to the upper duct 100, And a second panel member 320 provided on the inner wall of the first panel member 310 and coupled with the vibration reducing member 600 to support the cooling fan unit 400 .

The fan housing 500 is coupled to the second panel member 320 while receiving the cool fan unit 400 and is disposed between the inner wall of the fan housing 500 and the cool fan unit 400 A guide panel 700 for forming the cool air flow path inside the fan housing 500 is provided.

The fan housing 500 is provided with a cool air inlet port 510 through which air moving to the cool air fan unit 400 is introduced and the guide panel 700 is also provided with a cool air guide hole 710).

As shown in Fig. The support leg portion 423 includes an extension portion 424 extending from the body portion 421 and an insertion portion 425 formed at an end of the extension portion 424 to insert the vibration reduction member 600. [ .

It is preferable that the insertion portion 425 is provided in an annular shape in which one side is open and is provided in a substantially "C" shape.

In other words, an opening 426 for allowing the vibration reducing member 600 to be easily inserted or removed is formed on one side of the insertion portion 425, and the vibration reducing member 600 is inserted through the opening 426 And is removed.

4 and 5, the vibration reducing member 600 is provided in the shape of a washer having a predetermined thickness, and the outermost diameter D2 of the vibration reducing member 600 is formed in the insertion portion And a coupling groove 610 is formed at the center of the rim of the vibration reducing member 600 to engage with the insertion portion 425 along the rim thereof.

The distance D3 from one side of the surface of the coupling groove 600 to the opposite side is substantially equal to the diameter D1 of the insertion portion 425 so that the coupling groove 610 is inserted into the insertion portion 425, the rim portions formed on the front and rear sides of the coupling groove 610 come into contact with the outer surface of the support leg portion 423 outside the insertion portion 425.

Therefore, the vibration reducing member 600 is prevented from being released to the front or rear of the support leg portion 423.

The width G of the opening 426 of the insertion portion 425 is formed to be smaller than the diameter of the portion where the coupling groove 610 is formed so that the assembling operator inserts the insertion portion 425 into the vibration- When the coupling groove 610 of the vibration reduction member 600 is allowed to pass through the opening 426 when coupling the vibration reduction member 600 to the vibration reduction member 600, When the engaging groove 610 of the engaging member 600 passes through the opening 426, the engaging groove 610 is returned to its original position.

The inner circumferential surface of the insertion portion 425 and the outer circumferential surface of the coupling groove 610 are fitted to each other and are provided on the front and rear surfaces of the coupling groove 610 in this state, The protruding portion 620 protruding from the support leg portion 423 contacts the support leg portion 423 to prevent the vibration reducing member 600 from being released in the forward and backward directions.

A predetermined through hole 630 is formed in the center of the vibration reducing member 600 and a coupling member 640 such as a hook or a bolt is inserted into the through hole 630 to be coupled to the second panel member 320 .

Accordingly, when the coupling member 640 fixes the vibration reduction member 600, the cooling fan unit 400 including the motor support member 420 connected to the vibration reduction member 600 is rotated 2 panel member 320 in a non-moving manner.

As shown in FIGS. 6 and 7, when the coolant flows into the evaporator 200 (see FIG. 2) 200 and the coolant fan 401 rotates, the air passes through the evaporator 200 to become cold cool air And the cool air is introduced into the cool air inlet 510 of the fan housing 500.

The cool air introduced into the cool air inlet 510 moves to the cool air discharge port 311 located above the cool air fan 401 by the blowing action of the cool air fan 401, (100), passes through the discharge guide (102) provided in the upper duct (100), and moves into the storage chamber (10).

Particularly, when the fan motor 410 operates and the cool air fan 401 rotates, vibrations caused by rotation and operation of the fan motor 410 are transmitted to the cool air fan 401, Lt; / RTI >

Since the motor support member 420 is not directly connected to the second panel member 320 but is connected to the vibration reduction member 600 as an intermediate medium, The vibration of the first panel member 320 is prevented from being transmitted to the second panel member 320, and the vibration can be attenuated or completely eliminated.

Accordingly, vibration and noise caused by the cooling fan 401 and the fan motor 410 can be remarkably reduced compared with a state in which the vibration reduction member 600 is not provided.

That is, as shown in FIG. 8, it can be seen that there is an effect that the noise caused by the vibration can be reduced by about 1 dB as a whole compared to the conventional case when the vibration reducing member 600 is present or absent .

1 and 2 are front views of a refrigerator according to the present invention.

3 is a perspective view showing a combined cooling fan unit and a panel member according to the present invention.

4 is a perspective view of the support leg and the vibration reduction member in the present invention.

5 is a front view and a side view of the vibration reduction member of the present invention.

6 and 7 are operation diagrams showing the flow of cool air in the refrigerator according to the present invention.

8 is a graph showing noise levels before and after installation of the vibration reduction member in the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

300: Panel member 310: First panel member

320: second panel member 400: cold fan unit

401: Cool fan 410: Fan motor

420: motor support portion 423: support leg portion

424: extension part 425: insertion part

426: opening part 500: fan housing

600: Vibration reduction member 610: Coupling groove

Claims (15)

A main body having a storage chamber; A cool air generating chamber provided on the rear side of the storage chamber in the main body to generate cool air to be supplied to the storage chamber; A panel member mounted to partition the storage chamber and the cold air generating chamber; A cool air fan unit mounted on a rear surface of the panel member; A fan housing mounted on the panel member to receive the cool air fan unit from the rear side of the panel member and having a cool air inlet through which air moving to the cool fan unit flows; And a guide panel disposed between the inner wall of the fan housing and the cool air fan unit and having a cool air guide hole at a position corresponding to the cool air inlet, The cooling fan unit includes: A cold air fan; A fan motor for rotating the cooling fan; A motor support member having a motor fixing hole, which is fastened by a coupling member to the rear surface of the panel member and into which the fan motor is inserted; A coupling member for coupling the motor support member to the rear surface of the panel member; And a vibration reduction member that is formed in a washer shape through which the coupling member passes and is mounted so as to be pressed between the motor support member and the panel member to reduce transmission of vibration of the cooling fan unit to the panel member. The refrigerator. delete The method according to claim 1, The motor- A body portion having the motor fixing hole formed at a central portion thereof; Further comprising a support leg portion extending radially from an outer circumferential surface of the body portion and coupled to the vibration reduction member. The method of claim 3, The support legs are arranged in a plurality of spaces, The support leg portion includes an extension extending from an edge of the body portion; Further comprising an insertion portion provided at an end of the extension portion and into which the vibration reduction member is inserted. 5. The method of claim 4, Wherein the insertion portion includes an opening for partially opening the vibration reduction member so that the vibration reduction member can be inserted or removed. 6. The method according to any one of claims 3 to 5, Wherein the vibration reduction member is provided in a washer shape and the vibration reduction member is provided with a coupling groove to be coupled with the support leg portion at an edge of the vibration reduction member. The method according to claim 6, Wherein the vibration reduction member is made of a rubber material. The method according to claim 6, And the width of the coupling groove has a size corresponding to the width of the insertion portion. The method according to claim 6, Wherein the insertion portion is provided in a circular shape having an opening at one side thereof, Wherein a size of a diameter between a portion of the surface of the engaging groove and a portion on the opposite side of the engaging groove has a size corresponding to the diameter of the inserting portion. 10. The method of claim 9, The width of the opening is formed to be smaller than the diameter of a part between the surface of the engaging groove and the part on the opposite side of the engaging groove so that the vibration reducing member is elastically shrunk and deformed when the vibration reducing member passes through the opening, And when the refrigerant passes through the opening, the refrigerator is elastically deformed in its original state. The method according to claim 6, The front and rear of the coupling groove are protruded upward from the coupling groove so that when the vibration reduction member is coupled to the insertion portion, the vibration reduction member is prevented from being detached from the insertion portion by being contacted with the vicinity of the insertion portion Features a refrigerator. delete delete delete The method according to claim 1, The panel member includes a first panel member including a cool air discharge port for guiding cool air discharged from the cool air fan unit to move to an upper portion of a rear wall of the storage chamber; And a second panel member provided on an inner wall of the first panel member and having a rear surface to which the fan unit and the fan housing are coupled.

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