KR20220014046A - Blower fan for freezer - Google Patents

Blower fan for freezer Download PDF

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Publication number
KR20220014046A
KR20220014046A KR1020200093616A KR20200093616A KR20220014046A KR 20220014046 A KR20220014046 A KR 20220014046A KR 1020200093616 A KR1020200093616 A KR 1020200093616A KR 20200093616 A KR20200093616 A KR 20200093616A KR 20220014046 A KR20220014046 A KR 20220014046A
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KR
South Korea
Prior art keywords
hub
wing
air blowing
blowing fan
air
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KR1020200093616A
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Korean (ko)
Inventor
김학기
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주식회사 아진이에스알
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Priority to KR1020200093616A priority Critical patent/KR20220014046A/en
Publication of KR20220014046A publication Critical patent/KR20220014046A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to an air blowing fan for a freezing apparatus, which is mounted on a unit cooler or a condenser of a freezing apparatus, and, more specifically, to an air blowing fan for a freezing apparatus, capable of improving air blowing efficiency to power by expanding an air blowing area and air blowing intensity. In accordance with a purpose of the present invention, the air blowing fan for a freezing apparatus is provided to increase the volume of an air flow in comparison with an existing air blowing fan of the same radius by causing even a hub to push the air due to an improvement in a wing shape of the air blowing fan, and also, to remove a noise caused by wobbles of a wing during operation. To achieve the purpose, in accordance with the present invention, the air blowing fan comprises: a cylindrical hub (10) having a rotation center part detachably combined with the front end of a rotary shaft (2) of a driving motor (1); a plurality of wings (20) arranged equiangularly to be connected in a radial form along an outer circumference surface of the hub (10), while connected such that the top of each panel connected with a slope surface can be projected above an upper side of the hub (10); and a wing extension part (30) extending an inner end of the wing (20) projected to an upper part of the hub (10) to the upper side of the hub (10) while forming a curve, having a form stood almost vertically on the upper side of the hub (10) due to a slope which is more inclined sharply than the slope of the front side of the wing (20), and extended in a form gently inclined from the outer circumference surface of the hub (10) toward the inside of the outer circumference surface of the hub (10).

Description

냉동장치용 송풍팬{Blower fan for freezer}Blower fan for freezer {Blower fan for freezer}

본 발명은 냉동장치의 응축기 또는 유니트 쿨러에 장착되어 공기를 유동시키는 것으로, 송풍 면적과 송풍 세기를 확대시켜 전력대비 송풍효율이 향상되도록 하는 냉동장치용 송풍팬에 관한 것이다.The present invention relates to a blower fan for a refrigerating device that is mounted on a condenser or a unit cooler of a refrigerating device to allow air to flow, and which enlarges a blowing area and a blowing strength to improve blowing efficiency compared to power.

일반적으로 냉동장치에 사용되는 송풍팬은 허브와, 허브의 외주면에 방사상으로 연결된 날개들로 구성되며, 전동모터의 회전축 선단부에 허브가 함께 회전되도록 연결되어 전동모터에 의해 회전 구동되면 공기의 유동을 발생시킨다.In general, a blower fan used in refrigeration equipment consists of a hub and blades radially connected to the outer circumferential surface of the hub. generate

상기한 송풍팬은 실외에 설치되는 냉동장치의 응축기에 장착되어 열교환된 뜨거운 공기를 배출하는데 사용되고, 또한 실내에 설치되는 냉동장치의 유니트 쿨러에 장착되어 차가운 냉기를 멀리 보내는데 사용된다.The blower fan is mounted on a condenser of a refrigeration device installed outdoors and used to discharge heat-exchanged hot air, and is mounted on a unit cooler of a refrigeration device installed indoors and used to send cold air away.

종래의 송풍팬에 구비된 날개(20')는 도 8에 도시된 바와 같이, 허브(10')에 연결된 부분에서 방사상 방향으로 연장되면서 폭이 점차 커지고 경사면을 가지는 형상이다.As shown in FIG. 8 , the blades 20 ′ provided in the conventional blower fan have a shape having an inclined surface that gradually increases in width while extending in a radial direction from a portion connected to the hub 10 ′.

이러한 종래의 송풍팬의 경우, 냉각시키고자 하는 실내공간이 넓거나 또는 많은 양의 뜨거운 공기를 배출할 경우, 강한 바람을 만들어내기 위해, 회전 반경이 큰 날개를 사용하거나 회전속도를 늘렸다.In the case of such a conventional blower fan, when the indoor space to be cooled is large or a large amount of hot air is discharged, a blade having a large rotation radius is used or the rotation speed is increased in order to create a strong wind.

그러나 냉동장치는 송풍팬을 장착할 수 있는 공간이 한정되어 있기 때문에, 날개의 길이와 폭을 비교적 작게 형성하고 회전속도를 높이는 형태여서, 소음이 많이 발생하고, 소비 전력도 많이 소비되며, 또한 회전속도의 증가로 인해 송풍팬의 수명이 단축되는 문제점들이 있었다.However, since the refrigeration system has a limited space for installing a blower fan, the length and width of the blades are relatively small and the rotation speed is increased. There was a problem in that the life of the blower fan was shortened due to the increase in speed.

KR 등록특허 제10-1745904호KR Registered Patent No. 10-1745904

본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로서, 송풍팬의 날개 형태를 개선하여 허브에서도 공기를 밀어내도록 하여 종래 동일 반경의 송풍팬에 비하여 공기의 유동량이 많아지도록 하며, 작동중에 날개의 떨림에 의한 소음 현상을 제거하는 냉동장치용 송풍팬을 제공함에 있다.An object of the present invention is to solve the above problems, by improving the shape of the blades of the blowing fan to push the air out from the hub, so that the flow rate of air is greater than that of the conventional blowing fan of the same radius, and vibration of the blades during operation An object of the present invention is to provide a blower fan for a refrigeration system that eliminates the noise phenomenon caused by

상기 목적을 실현하기 위하여 본 발명은, 구동모터의 회전축 선단에 회전 중심부가 착탈 가능하게 결합되는 원통 형상의 허브와; 허브의 외주면을 따라 방사상으로 다수가 등각으로 배열되어 연결되는 것으로, 경사면을 갖고 연결된 각 판재의 상단이 허브의 상면 위로 돌출되게 연결되는 날개와; 허브의 상부로 돌출된 날개의 내측 끝 부분이 허브의 상면으로 커브를 형성하며 연장되는 것으로, 날개의 전면 경사에 비해 급격히 경사가 커져 허브의 상면에서 거의 수직에 가깝게 세워진 형태이며, 허브의 외주면에서 시작되어 허브의 외주면 내측으로 완만히 기울어지는 형태로 연장되는 날개 연장부로 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a cylindrical hub in which a rotation center is detachably coupled to a tip of a rotation shaft of a driving motor; a blade connected to a plurality of radially arranged at an equal angle along the outer circumferential surface of the hub, the upper end of each plate having an inclined surface connected to protrude above the upper surface of the hub; The inner end of the wing protruding from the top of the hub extends to form a curve on the upper surface of the hub. It is characterized in that it consists of a wing extension that starts and extends in a form that is gently inclined to the inside of the outer circumferential surface of the hub.

이러한 본 발명은 송풍팬의 허브에서도 공기를 밀어내는 구조이기 때문에 송풍량이 종래에 비해 월등히 많아 지도록 하므로, 공기 순환을 빠르게 할 뿐 아니라, 보강구조가 회전할 때 공기 저항에 의한 뒤틀림을 억제하여, 떨림 현상이 없이 조용한 운전이 되도록 하므로 상품성이 우수한 효과가 있다.Since the present invention has a structure that pushes air even from the hub of the blower fan, the amount of air blown is significantly increased compared to the prior art, so not only does the air circulation speed up, but also suppresses distortion due to air resistance when the reinforcing structure rotates, causing vibration Because it enables quiet operation without phenomena, it has an excellent effect of commercialization.

도 1은 본 발명의 송풍팬을 나타내는 사시도,
도 2는 본 발명의 송풍팬을 나타내는 평면도,
도 3은 본 발명의 송풍팬을 나타내는 저면도,
도 4는 본 발명의 송풍팬을 나타내는 단면도,
도 5는 본 발명의 송풍팬이 구동모터에 연결된 상태를 나타내는 단면도,
도 6은 본 발명의 송풍팬이 구동모터에 연결되는 상태를 나타내는 분해 사시도,
도 7은 본 발명의 송풍팬이 냉동장치에 장착된 상태를 나태내는 개략도,
도 8은 종래 송풍팬을 개략적으로 도시한 평면도.1 is a perspective view showing a blowing fan of the present invention;
2 is a plan view showing the blowing fan of the present invention;
3 is a bottom view showing the blowing fan of the present invention;
4 is a cross-sectional view showing the blowing fan of the present invention;
5 is a cross-sectional view showing a state in which the blowing fan of the present invention is connected to a driving motor;
6 is an exploded perspective view showing a state in which the blowing fan of the present invention is connected to a driving motor;
7 is a schematic diagram showing a state in which the blowing fan of the present invention is mounted on the refrigerating device;
8 is a plan view schematically illustrating a conventional blower fan.

본 발명은 도 1내지 도 7에 도시되는 바와 같이, 구동모터(1)의 회전축(2) 선단에 중심부가 착탈 가능하게 결합되는 원통 형상의 허브와(10); 허브(10)의 외주면을 따라 방사상으로 다수가 등각으로 배열되어 연결되는 것으로, 경사면을 갖고 연결된 각 판재의 상단이 허브(10)의 상면 위로 돌출되게 연결되는 날개(20)와; 허브(10)의 상부로 돌출된 날개(20)의 내측 끝 부분이 허브(10)의 상면으로 커브를 형성하며 연장되는 날개 연장부(30)로 이루어지는 것을 그 기술적 구성상의 기본 특징으로 한다.As shown in FIGS. 1 to 7, the present invention includes: a cylindrical hub 10 in which the center is detachably coupled to the front end of the rotation shaft 2 of the driving motor 1; A plurality of radially arranged and connected equiangularly along the outer circumferential surface of the hub 10, the upper end of each plate having an inclined surface is connected to protrude above the upper surface of the hub 10; The basic feature in terms of its technical configuration is that the inner end of the wing 20 protruding upward of the hub 10 is formed of a wing extension 30 extending while forming a curve toward the upper surface of the hub 10 .

여기에서, 허브(10)는 날개(20)의 내측 끝부분 하단이 연결되는 부위마다 원통의 다른 하단부 부위보다 하향으로 돌출되어 원통의 등각으로 하부 돌출부(11)들이 형성되는 형태이며, 원통의 상면 중앙에 회전축(2) 선단을 고정하는 회전축 고정부(12)가 돌출되게 구비된다.Here, the hub 10 has a shape in which the lower protrusions 11 are formed at an isometric angle of the cylinder by protruding downward from the other lower end portions of the cylinder at each portion where the lower end of the inner end of the wing 20 is connected, and the upper surface of the cylinder A rotating shaft fixing part 12 for fixing the tip of the rotating shaft 2 in the center is provided to protrude.

한편, 도 5 내지 도 6에 도시된 바와 같이 회전축 고정부(12) 내주면에 압입된 회전축 연결부(13)에 회전축(2)이 삽입되면 고정나사(14)에 의해 허브(10)와 회전축(2)이 고정되게 된다.On the other hand, when the rotation shaft 2 is inserted into the rotation shaft connection part 13 press-fitted to the inner peripheral surface of the rotation shaft fixing part 12 as shown in FIGS. 5 to 6 , the hub 10 and the rotation shaft 2 by the fixing screw 14 ) is fixed.

날개(20)는 종래 일반적인 형태인 3개 내지 4개 보다 거의 배가 많은 형태로 이루어지며, 각기 후면의 외곽부에 회전 동심원상으로 돌출되는 날개 보강 뼈대(21)들이 형성된다.The wing 20 is made in a shape that is almost twice as many as three to four, which is a conventional general shape, and the wing reinforcement skeletons 21 protruding concentrically in rotation are formed on the outer portion of the rear surface of each.

날개 연장부(30)는 날개(20)의 전면 경사에 비해 경사가 급격히 커지는 형태 즉, 허브(10)의 상면에서 거의 수직에 가깝게 세워진 형태이며, 허브(10)의 외주면에서 시작되어 허브(10)의 외주면 내측으로 완만히 기울어지는 형태로 연장된다.The wing extension 30 has a form in which the inclination is sharply increased compared to the front inclination of the wing 20 , that is, it is erected almost vertically on the upper surface of the hub 10 , and starts from the outer circumferential surface of the hub 10 and starts at the hub 10 . ) of the outer circumferential surface is extended in the form of a gentle inclination inward.

상기 날개 연장부(30)는 각 날개(20) 마다 그 내측 끝에서 동일한 형태로 허브 상면에 구비되어 각 날개(20) 전면의 유선을 따라 전방 중심부쪽으로 이동하는 공기를 전방쪽으로 강하게 밀어낸다.The wing extension 30 is provided on the upper surface of the hub in the same shape at the inner end of each wing 20 to strongly push the air moving toward the front center along the streamline of the front of each wing 20 in the forward direction.

이와 같이 구성되는 본 발명은 실외에 설치되는 냉동장치의 응축기(3) 상부나 실내에 설치되는 냉동장치의 유니트 쿨러(4) 전면부에 장착되는 구동모터(1)의 회전축(2) 선단에 허브(10)의 회전축 고정부(12)가 결합되어 구동모터(1)에 의해 회전하게 되며, 날개(20)들이 회전하면 날개(20)의 후방에서 전방으로 이동하는 공기가 날개(20) 전면의 유선을 따라 전방을 향하여 밀려가고, 날개(20)들의 내측 끝부분에서 회전 중심부쪽으로 이동하는 공기가 급하게 돌출되는 날개 연장부(30)에 의해 더 강하게 전방쪽으로 밀리게 된다.The present invention configured as described above is a hub at the tip of the rotating shaft 2 of the driving motor 1 mounted on the top of the condenser 3 of a refrigeration device installed outdoors or on the front part of the unit cooler 4 of a refrigeration device installed indoors. The rotating shaft fixing part 12 of (10) is coupled and rotated by the driving motor 1, and when the blades 20 rotate, the air moving from the rear to the front of the blades 20 moves to the front of the blades 20. It is pushed forward along the streamline, and the air moving from the inner end of the blades 20 toward the center of rotation is pushed forward more strongly by the wing extension 30 that rapidly protrudes.

한편, 날개(20)들이 회전을 하게 되면, 공기저항에 의한 외력이 날개(20)자체와 허브(10)의 날개 연결부에 작용하게 되는데, 날개(20)의 저면에 형성된 날개 보강 뼈대(21)는 날개(20)가 변형되는 것을 억제하고, 하부 돌출부(11)들이 날개(20)에 작용하는 외력을 허브(10)에 고르게 분산시키게 된다.On the other hand, when the wings 20 are rotated, an external force due to air resistance acts on the wing connection part of the wing 20 itself and the hub 10, and the wing reinforcement skeleton 21 formed on the bottom surface of the wing 20. suppresses the wing 20 from being deformed, and the lower protrusions 11 evenly distribute the external force acting on the wing 20 to the hub 10 .

따라서, 이러한 본 발명은 회전 중심부인 허브(10)에서도 공기를 밀어내는 구조로 형성되어 송출되는 송풍량이 종래에 비해 월등히 많아 지도록 하므로, 응축기(3)에서는 뜨거운 공기를 빨리 외부로 배출하게 되고, 실내인 냉동창고 내부에서는 차가운 공기를 멀리까지 빠르게 순환시킬 뿐 아니라, 송풍량도 월등히 많아 냉동창고를 빨리 냉각시킬 수 있게 된다.Therefore, the present invention is formed in a structure that pushes air even from the hub 10, which is the center of rotation, so that the amount of blown air is significantly increased compared to the conventional one, so that the hot air is quickly discharged from the condenser 3 to the outside, Not only does the cold air circulate far away quickly, but also the amount of air blown is very large, so it is possible to quickly cool the freezer.

또한, 회전할 때 공기 저항에 의한 뒤틀림을 억제하여 그로 인한 떨림 현상이 없이 조용한 운전이 되도록 하므로 상품성이 향상되도록 한다.In addition, it suppresses the distortion caused by air resistance when rotating, so that it is possible to operate quietly without vibration caused by it, so that the marketability is improved.

1:구동모터 2:회전축
3:응축기 4:유니트 쿨러
10:허브 11:하부 돌출부
12:회전축 고정부 13:회전축 연결부
14:고정나사 20:날개
21:날개 보강 뼈대 30:날개 연장부1: drive motor 2: rotation shaft
3: condenser 4: unit cooler
10: hub 11: lower protrusion
12: rotation shaft fixing part 13: rotation shaft connection part
14: set screw 20: wing
21: wing reinforcement skeleton 30: wing extension

Claims (2)

구동모터(1)의 회전축(2) 선단에 회전 중심부가 착탈 가능하게 결합되는 원통 형상의 허브와(10); 허브(10)의 외주면을 따라 방사상으로 다수가 등각으로 배열되어 연결되는 것으로, 경사면을 갖고 연결된 각 판재의 상단이 허브(10)의 상면 위로 돌출되게 연결되는 날개(20)와; 허브(10)의 상부로 돌출된 날개(20)의 내측 끝 부분이 허브(10)의 상면으로 커브를 형성하며 연장되는 것으로, 날개(20)의 전면 경사에 비해 급격히 경사가 커져 허브(10)의 상면에서 거의 수직에 가깝게 세워진 형태이며, 허브(10)의 외주면에서 시작되어 허브(10)의 외주면 내측으로 완만히 기울어지는 형태로 연장되는 날개 연장부(30)로 이루어지는 것을 특징으로 하는 냉동장치용 송풍팬.
a cylindrical hub 10 in which a rotation center is detachably coupled to the tip of the rotation shaft 2 of the driving motor 1; A plurality of radially arranged and connected equiangularly along the outer circumferential surface of the hub 10, the upper end of each plate having an inclined surface is connected to protrude above the upper surface of the hub 10; The inner end of the wing 20 protruding to the upper portion of the hub 10 extends to form a curve on the upper surface of the hub 10 , and the inclination is sharply increased compared to the front inclination of the wing 20 , so that the hub 10 . For a refrigeration system, characterized in that it has a form that is erected almost vertically from the upper surface of the refrigeration device, and is formed of a wing extension part 30 that starts from the outer peripheral surface of the hub 10 and extends in a form that gently inclines inward to the outer peripheral surface of the hub 10 blowing fan.
 제 1항에 있어서,
날개(20)의 저면에 날개 보강 뼈대(21)가 일정 간격으로 돌출되게 형성되고, 날개(20)의 내측 끝부분 하단이 연결되는 부위마다 허브(10) 원통의 다른 하단부 부위보다 하향으로 돌출되어 원통의 등각으로 하부 돌출부(11)들이 형성되어 날개(20)에 작용하는 외력을 허브(10)에 고르게 분산시키도록 하는 것을 특징으로 하는 냉동장치용 송풍팬.The method of claim 1,
On the lower surface of the wing 20, the wing reinforcement skeleton 21 is formed to protrude at regular intervals, and at each site where the lower end of the inner end of the wing 20 is connected, it protrudes downward from the other lower end portions of the cylinder of the hub 10. A blower fan for a refrigeration system, characterized in that the lower protrusions (11) are formed at an equal angle to the cylinder to evenly distribute the external force acting on the blades (20) to the hub (10).
KR1020200093616A 2020-07-28 2020-07-28 Blower fan for freezer KR20220014046A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101745904B1 (en) 2016-10-19 2017-06-13 주식회사 한미마이크로닉스 Cooler fan having double blade

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101745904B1 (en) 2016-10-19 2017-06-13 주식회사 한미마이크로닉스 Cooler fan having double blade

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