KR100607711B1 - Open showcase - Google Patents

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Publication number
KR100607711B1
KR100607711B1 KR1020040038571A KR20040038571A KR100607711B1 KR 100607711 B1 KR100607711 B1 KR 100607711B1 KR 1020040038571 A KR1020040038571 A KR 1020040038571A KR 20040038571 A KR20040038571 A KR 20040038571A KR 100607711 B1 KR100607711 B1 KR 100607711B1
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South Korea
Prior art keywords
evaporator
air
cross
showcase
fan motor
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KR1020040038571A
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Korean (ko)
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KR20050113075A (en
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전대웅
강대모
윤덕원
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캐리어 유한회사
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Priority to KR1020040038571A priority Critical patent/KR100607711B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 발명은 오픈 쇼 케이스에 관한 것으로, 보다 자세하게는 증발기에 인접한 곳에 장착되어 공기를 흡입하여 증발기로 보내 열교환시키고, 증발기를 통해 냉각된 공기를 쇼 케이스 내부로 토출시키는 팬 모터가 횡방향으로 장설됨으로서, 공기가 균일하게 이동하여 냉각성능을 향상시키는 것을 특징으로 한다.The present invention relates to an open show case, and more particularly, the fan motor is installed in the vicinity of the evaporator and sucks air to be sent to the evaporator for heat exchange, and discharges the cooled air through the evaporator into the show case in a horizontal direction. In addition, the air is uniformly characterized in that to improve the cooling performance.

쇼 케이스, 증발기, 횡류식 팬모터, 덕트, 컨트롤부Show case, evaporator, cross flow fan motor, duct, control section

Description

오픈 쇼 케이스{OPEN SHOWCASE}Open show case {OPEN SHOWCASE}

도 1은 종래 오픈 쇼케이스의 측단면도.1 is a side cross-sectional view of a conventional open showcase.

도 2는 종래 오픈 쇼케이스를 개략적으로 나타내는 사시도.Figure 2 is a perspective view schematically showing a conventional open showcase.

도 3은 본 발명에 따른 오픈 쇼케이스의 측단면도.Figure 3 is a side cross-sectional view of the open showcase according to the present invention.

도 4는 본 발명에 따른 오픈 쇼케이스를 개략적으로 나타내는 사시도.4 is a perspective view schematically showing an open showcase according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

20 : 본체 24 : 증발기20: main body 24: evaporator

26 : 덕트 29 : 컨트롤부26: duct 29: control unit

31 : 횡류식 팬모터부31: cross-flow fan motor

본 발명은 증발기에 인접한 곳에 장착되어 공기를 흡입하여 증발기로 보내 열교환시키고, 증발기를 통해 냉각된 공기를 쇼 케이스 내부로 토출시키는 팬 모터가 횡방향으로 장설됨으로서, 공기가 균일하게 이동하여 냉각성능을 향상시키는 오픈 쇼 케이스에 관한 것이다.The present invention is installed in the vicinity of the evaporator, the air is sucked and sent to the evaporator to exchange heat, and the fan motor for discharging the air cooled through the evaporator to the inside of the show case is installed in the horizontal direction, so that the air moves uniformly to improve the cooling performance It is about improving open show cases.

일반적으로 오픈 쇼케이스(open showcase)는 슈퍼마켓이나 백화점, 대형 할인 매장 등에 설치되는 것으로서, 층류의 공기를 순환시켜 내부 온도를 저온으로 유지하여 상품을 장기간 보관하고 투시가 가능함으로써 구매자로 하여금 구매의욕을 돋구도록 하는 것이다.In general, open showcases are installed in supermarkets, department stores, and large discount stores. The open showcase circulates laminar air to keep the internal temperature at a low temperature, so that the product can be stored and viewed for a long time. To do that.

도 1은 종래 오픈 쇼케이스의 측단면도이고, 도 2는 종래 오픈 쇼케이스를 개략적으로 나타내는 사시도이다.Figure 1 is a side cross-sectional view of a conventional open showcase, Figure 2 is a perspective view schematically showing a conventional open showcase.

도시된 바와 같이, 제품 외관을 구성하는 본체(10)는 베이스(11), 미들(12), 헤드(13)로 이루어진다.As shown, the main body 10 constituting the product appearance is composed of a base 11, the middle 12, the head 13.

그리고, 상기 본체(10) 내부에는 물품을 전시 및 저온 보관하기 위한 진열장(15)이 형성되고, 상기 진열장(15)과 본체(10) 사이에는 공기가 이동하기 위한 덕트(16)가 형성된다.In addition, a showcase 15 for displaying and storing the article at low temperature is formed in the main body 10, and a duct 16 for moving air is formed between the showcase 15 and the main body 10.

이때, 베이스(11) 상단에는 열교환을 수행하는 증발기(14)가 장착되고, 상기 증발기(14)의 전면에는 축류식 팬모터(1)가 설치된다.In this case, an evaporator 14 for performing heat exchange is mounted on the upper end of the base 11, and an axial fan motor 1 is installed on the front surface of the evaporator 14.

또한, 상기 본체(10)의 내부 상부에는 냉기토출구(17), 하부에는 냉기흡입구(18)가 형성된다.In addition, the inside of the main body 10 has a cold air discharge port 17, the cold air inlet 18 is formed in the lower portion.

상기한 구성을 갖는 오픈 쇼케이스의 냉각과정을 살펴보면 다음과 같다.Looking at the cooling process of the open showcase having the above configuration as follows.

컨트롤부(19)에 전원이 인가되면, 축류식 팬모터(16)가 작동하여 냉기흡입구(18)를 통해 진열장(15)에 수납된 상품을 냉각시킨 공기를 흡입하여 증발기(14)에 불어 넣어주고, 증발기(14)는 열교환을 통해 공기를 냉각시켜 덕트(16)로 보내준다.When power is applied to the control unit 19, the axial fan motor 16 is operated to suck the air cooled the goods stored in the showcase 15 through the cold air inlet 18 and blow into the evaporator 14 The evaporator 14 cools the air through heat exchange and sends it to the duct 16.

따라서, 냉각된 공기는 덕트(16)를 통해 이동하다가 진열장(15)으로 일부 유입되어 진열장 내부를 냉각시킨다.Therefore, the cooled air moves through the duct 16 and partially flows into the showcase 15 to cool the inside of the showcase.

그리고, 냉기토출구(17)를 통해 배출된 공기는 각 진열장(15)으로 유입되어 상품을 냉장 및 냉동 보관하고, 그 중의 일부는 에어커튼을 형성하여 외부로부터의 공기 유입을 차단하여 쇼케이스 내부를 상품 보관이 적정한 온도로 유지할 수 있도록 한다.And, the air discharged through the cold air outlet 17 is introduced into each showcase 15 to store the product refrigerated and frozen, some of which form an air curtain to block the inflow of air from the outside goods inside the showcase Ensure that storage is maintained at the proper temperature.

그러나, 종래에는 축류식 팬모터를 사용하기 때문에, 팬모터의 회전방향(시계 또는 반시계 방향)으로 차가운 공기의 양이 균일하게 전달되지 못하여 쇼케이스의 내부 온도편차가 발생하는 문제점이 있었다.However, since the conventional axial fan motor is used, there is a problem that the internal temperature deviation of the showcase occurs because the amount of cold air is not uniformly transmitted in the rotational direction (clockwise or counterclockwise) of the fan motor.

또한, 다수의 팬모터가 서로 동일한 방향으로 회전하기 때문에, 공기의 간섭이 발생하여 증발기에 골고루 공기가 유입되지 않아 효율적인 열교환이 이루어지지 않고, 냉기가 토출구에서 균일하게 배출되지 못하는 문제점이 있었다.In addition, since the plurality of fan motors rotate in the same direction with each other, there is a problem that the interference of the air is generated so that the air is not evenly introduced into the evaporator, so that efficient heat exchange does not occur, and cold air is not uniformly discharged from the discharge port.

그리고, 다수의 팬 모터 사용으로 소음이 증대되는 문제점이 있었다.And, there is a problem that the noise is increased by using a plurality of fan motors.

이에 본 발명은 상기와 같은 문제점들을 해소하기 위해 안출된 것으로써, 본 발명은 종래 다수의 축류식 팬 모터를 소수의 횡류식 팬 모터로 대체하여 증발기의 열교환 효율을 향상시키고, 균일한 냉각 공기의 토출 및 팬 모터의 작동에 따른 소음저감을 목적으로 한다.
Accordingly, the present invention has been made to solve the above problems, the present invention is to replace the conventional plurality of axial fan motor with a small number of cross-flow fan motor to improve the heat exchange efficiency of the evaporator, the uniform cooling air It aims to reduce noise due to discharge and operation of fan motor.

상기와 같은 목적을 달성하기 위한 본 발명은 베이스, 미들, 헤드를 구비하는 본체 및 상기 본체의 내부 진열장으로 공기이동을 위한 덕트가 구비되고, 상기 본체의 베이스 상단에 해당하는 덕트에 열교환을 위한 증발기를 구비하는 오픈 쇼 케이스에 있어서, 상기 증발기의 인접한 곳에 횡류식 팬을 구비하는 횡류식 팬모터부가 횡방향으로 설치되어 공기를 순환시키는 것을 특징으로 하는 오픈 쇼 케이스를 제공한다.The present invention for achieving the above object is provided with a base, a middle, a head having a head and a duct for moving the air to the inner showcase of the body, the evaporator for heat exchange in the duct corresponding to the base top of the body In the open show case having a cross-flow fan motor having a cross-flow fan in the vicinity of the evaporator is provided in the transverse direction provides an open show case, characterized in that for circulating air.

상기한 구조는 횡방향으로 균일하게 공기를 흡입하고 배출하는 횡류팬을 사용함으로써, 증발기에 균일하게 공기가 유입되어 열교환이 효율적으로 수행되고, 냉각된 공기가 균일하게 배출되게 된다.In the above structure, by using a crossflow fan that uniformly sucks and discharges air in the lateral direction, air is uniformly introduced into the evaporator so that heat exchange is efficiently performed, and cooled air is uniformly discharged.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

또한, 본 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 단지 예시로 제시된 것이며, 종래 구성과 동일한 부분은 동일한 부호 또는 명칭을 사용한다.In addition, this embodiment is presented by way of example only, not limiting the scope of the present invention, the same parts as the conventional configuration uses the same reference numerals or names.

도 3은 본 발명에 따른 오픈 쇼케이스의 측단면도이고, 도 4는 본 발명에 따른 오픈 쇼케이스를 개략적으로 나타내는 사시도이다.Figure 3 is a side cross-sectional view of the open showcase according to the present invention, Figure 4 is a perspective view schematically showing an open showcase according to the present invention.

도시한 바와 같이, 제품 외관을 구성하는 본체(20)는 베이스(21), 미들(22), 헤드(23)로 이루어진다.As shown, the main body 20 constituting the product appearance is composed of a base 21, the middle 22, the head 23.

그리고, 상기 본체(20) 내부에는 물품을 전시 및 저온 보관하기 위한 진열장(25)이 다수 형성되고, 상기 진열장(25)과 본체(20) 사이에는 공기가 이동하 기 위한 덕트(26)가 형성된다.In addition, a plurality of showcases 25 are formed in the main body 20 to display and store the article at low temperature, and a duct 26 for moving air is formed between the showcase 25 and the main body 20. .

이때, 베이스(21) 상단에는 열교환을 수행하는 증발기(24)가 장착되고, 상기 본체(20)의 내부 상부에는 냉기토출구(27), 하부에는 냉기흡입구(28)가 형성된다.In this case, an evaporator 24 for performing heat exchange is mounted on the upper end of the base 21, and a cold air outlet 27 is formed in the upper portion of the main body 20, and a cold air inlet 28 is formed in the lower portion thereof.

한편, 상기 증발기(24)의 인접 부위, 보다 구체적으로는 증발기(24)의 전측이나 후측에는 횡류식 팬모터부(31)가 설치된다.On the other hand, the cross-flow fan motor portion 31 is provided at an adjacent portion of the evaporator 24, more specifically, on the front side or the rear side of the evaporator 24.

상기 횡류식 팬모터부(31)는 횡방향으로 설치되는 횡류식 팬(32)과 이러한 팬(32)을 본체(20)에 고정시키는 고정판(33)이 일체로 모듈화 되어 구성된다.The cross-flow fan motor part 31 is configured by integrally modularizing the cross-flow fan 32 is installed in the horizontal direction and the fixing plate 33 for fixing the fan 32 to the body 20.

즉, 도 4에 나타난 일실시예에 따르면, 상기 고정판(33)은 팬(32)의 측방향이 개방되도록 팬(32)의 상하측에 각각 고정되는바, 증발기 방향으로 일측이 개방되고, 덕트 방향으로 타측이 개방된다.That is, according to the embodiment shown in Figure 4, the fixing plate 33 is fixed to the upper and lower sides of the fan 32 so that the lateral direction of the fan 32 is open, one side is opened in the evaporator direction, the duct The other side is opened in the direction.

이때, 상측부에 형성된 고정판은 일측이 연장되어 증발기 상단에 얹혀지고, 하측부에 형성된 고정판은 일측이 연장되어 본체에 접하되, 이렇게 접하는 고정판 부위에 결합홀(34)이 다수 형성됨으로서, 본체(20)에 형성되는 홀(미도시)을 통해 나사 결합하는 것이 바람직하다.At this time, the fixing plate formed on the upper side is one side is extended to be mounted on the top of the evaporator, the fixing plate formed on the lower side is extended to one side in contact with the main body, so that a plurality of coupling holes 34 formed in the contacting plate portion, the main body ( It is preferable to screw through a hole (not shown) formed in 20).

여기서, 도 4의 도면은 팬의 회전축을 지지하는 구조를 생략한 것이고, 도면부호 29는 컨트롤부 이다.Here, the drawing of Figure 4 omits the structure for supporting the rotation axis of the fan, reference numeral 29 is a control unit.

상기와 같은 구조로 이루어진 본 발명의 작용 및 효과는 다음과 같다.The action and effect of the present invention made of the above structure is as follows.

본 발명에 따른 오픈 쇼 케이스에 전원이 인가되어 컨트롤부(29)가 작동하면, 컨트롤부(29)의 제어에 의해 횡류식 팬모터부(31)가 작동을 하게 된다.When power is applied to the open show case according to the present invention and the control unit 29 operates, the cross-flow fan motor unit 31 operates under the control of the control unit 29.

즉, 횡류식 팬모터부(31)의 작동으로 냉기흡입구(28)를 통해 본체(20) 내부 에 저장된 공기를 흡입하여 증발기(24)를 통과시키게 되는데, 이러한 증발기(24)는 열교환을 통해 공기를 냉각시킨다.That is, the operation of the cross-flow fan motor 31 to suck the air stored in the main body 20 through the cold air inlet 28 to pass through the evaporator 24, the evaporator 24 through the heat exchange air Cool down.

따라서, 냉각된 공기는 팬(32)의 작동에 의해 덕트(26)를 통해 이동하다가 진열장(25)으로 일부 유입되어 진열장 내부를 냉각시킨다.Therefore, the cooled air moves through the duct 26 by the operation of the fan 32 and partially flows into the showcase 25 to cool the inside of the showcase.

그리고, 냉기토출구(27)를 통해 배출된 공기는 각 진열장(25)으로 유입되어 상품을 냉장 및 냉동 보관하고, 그 중의 일부는 에어커튼을 형성하여 외부로부터의 공기 유입을 차단하여 쇼케이스 내부를 상품 보관이 적정한 온도로 유지할 수 있도록 한다.In addition, the air discharged through the cold air outlet 27 is introduced into each showcase 25 to store the product refrigerated and frozen, and some of them form an air curtain to block the inflow of air from the outside to product inside the showcase. Ensure that storage is maintained at the proper temperature.

한편, 상기 횡류식 팬모터부(31)는 횡방향으로 설치되는 증발기(24)와 동일한 방향으로 장설되는 구조로서, 횡류식 팬(32)이 공기를 균일하게 흡입하고 배출해준다.On the other hand, the cross-flow fan motor 31 is installed in the same direction as the evaporator 24 is installed in the horizontal direction, the cross-flow fan 32 to intake and discharge the air uniformly.

이로 인해, 공기가 증발기를 균일하게 통과하게 되고, 냉각된 공기도 균일하게 토출되어 냉각 성능을 향상시킨다.As a result, the air passes uniformly through the evaporator, and the cooled air is evenly discharged to improve the cooling performance.

상기한 바와 같이 본 발명에 따른 오픈 쇼 케이스는 팬모터가 증발기와 동일하게 횡류식으로 장설됨으로서, 흡입되는 공기가 증발기를 균일하게 통과하여 열교환율이 향상되는 이점이 있다.As described above, the open show case according to the present invention has the advantage that the fan motor is installed in the cross-flow type in the same way as the evaporator, so that the air sucked uniformly passes through the evaporator to improve the heat exchange rate.

그리고, 열교환에 의해 냉각된 공기는 횡류식 팬 모터에 의해 균일하게 토출됨으로서, 쇼 케이스 내부를 골고루 냉각시켜 온도 편차를 해소시켜 주는 효과가 있다.In addition, the air cooled by the heat exchange is uniformly discharged by the cross-flow fan motor, thereby reducing the temperature deviation by uniformly cooling the inside of the show case.

또한, 소수의 팬 모터 사용으로 소음이 저감되는 이점이 있다.In addition, there is an advantage that the noise is reduced by using a small number of fan motors.

Claims (2)

베이스, 미들, 헤드를 구비하는 본체 및 상기 본체의 내부 진열장으로 공기이동을 위한 덕트가 구비되고, 상기 본체의 베이스 상단에 해당하는 덕트에 열교환을 위한 증발기를 구비하는 오픈 쇼 케이스에 있어서,In the open show case is provided with a base having a base, a middle, a head and a duct for moving air to the internal showcase of the main body, the evaporator for heat exchange in the duct corresponding to the upper end of the base, 상기 증발기의 인접한 곳에 횡류식 팬을 구비하는 횡류식 팬모터부가 횡방향으로 설치되어 공기를 순환시키는 것을 특징으로 하는 오픈 쇼 케이스.An open show case characterized in that a cross-flow fan motor unit having a cross-flow fan adjacent to the evaporator is installed in a cross direction to circulate air. 제 1항에 있어서, 상기 횡류식 팬모터부는 횡방향으로 설치되는 횡류식 팬과;According to claim 1, wherein the cross-flow fan motor portion and the cross-flow fan is installed in the transverse direction; 상기 팬의 측방향이 개방되도록 상하측에 각각 고정되고, 다수의 결합홀이 형성되어 본체와 나사 결합하는 고정판을 포함하여 이루어지는 것을 특징으로 하는 오픈 쇼 케이스.The open show case is fixed to the upper and lower sides so as to open the side of the fan, a plurality of coupling holes are formed to include a fixing plate for screwing the main body.
KR1020040038571A 2004-05-28 2004-05-28 Open showcase KR100607711B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100963065B1 (en) 2008-03-20 2010-06-14 주식회사 포스코 GA induction heater controller Cooling System and controller method

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WO2022148988A1 (en) * 2021-01-06 2022-07-14 Юрий ХАРЧЕНКО Combined refrigeration unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100963065B1 (en) 2008-03-20 2010-06-14 주식회사 포스코 GA induction heater controller Cooling System and controller method

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