KR100242568B1 - Manufacturing method for refrigerator circuit board case - Google Patents

Manufacturing method for refrigerator circuit board case Download PDF

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Publication number
KR100242568B1
KR100242568B1 KR1019970049454A KR19970049454A KR100242568B1 KR 100242568 B1 KR100242568 B1 KR 100242568B1 KR 1019970049454 A KR1019970049454 A KR 1019970049454A KR 19970049454 A KR19970049454 A KR 19970049454A KR 100242568 B1 KR100242568 B1 KR 100242568B1
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South Korea
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circuit board
refrigerator
board case
manufacturing
upper mold
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KR19990027082A (en
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박석행
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윤종용
삼성전자주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

본 발명은 냉장고에 관한 것으로 더상세하게는 냉장고 도어에 부착되는 회로기판 케이스의 제조방법에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a method of manufacturing a circuit board case attached to a refrigerator door.

본 발명에 따른 냉장고 회로기판 케이스 제조방법은 외부로 노출되는 투시부와 몸체가 성형과정에서 일체로 제작되고, 또한 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름도 성형과정에서 부착됨에 따라, 제작공정이 크게 단순화 되고, 몸체와 투시부사이에 틈이 생기지 않아 정전기의 침투가 방지되며, 상호 일체로 제작됨에 따라 외관이 미려한 장점이 있다.In the method of manufacturing a refrigerator circuit board case according to the present invention, as the transparent parts exposed to the outside and the body are manufactured integrally in the molding process, and various symbols printed films indicating the operating state of the refrigerator are also attached in the molding process, The manufacturing process is greatly simplified, and there is no gap between the body and the see-through part to prevent the penetration of static electricity, and the appearance is beautiful as it is manufactured integrally with each other.

Description

냉장고 회로기판 케이스 제조방법.Method for manufacturing a refrigerator circuit board case.

본 발명은 냉장고에 관한 것으로, 더욱 상세하게는 냉장고 도어의 전면에 부착되는 회로기판 케이스의 제조방법에 관한 것이다.The present invention relates to a refrigerator, and more particularly to a method of manufacturing a circuit board case attached to the front of the refrigerator door.

일반적으로 냉장고는 그 내부에 냉동사이클의 구성요소가 설치되어 이로부터 발생되는 냉기를 이용하여 음식물을 장기간 보관 할 수 있도록 한 가전제품이다.In general, a refrigerator is a home appliance that allows components for a refrigeration cycle to be installed therein so that food can be stored for a long time using cold air generated therefrom.

이러한 냉장고는 전면 도어부에 냉장고의 기능을 제어하는 콘트롤부가 마련된다. 이 콘트롤부는 회로기판 케이스와 일체로 구성되는데, 일부는 냉장고의 상태를 표시하는 디스플레이부와 조작버튼이 구비되어 외부로 노출되고, 그 내측에는 회로기판이 결합된다.The refrigerator is provided with a control unit for controlling the function of the refrigerator in the front door. The control unit is integrally formed with a circuit board case, a part of which is provided with a display unit for displaying the state of the refrigerator and an operation button and is exposed to the outside, and a circuit board is coupled to the inside thereof.

도 1은 이러한 회로기판 케이스(1)의 분해 사시도이다. 회로기판 케이스(1)는 냉장고 도어의 외측으로 노출되는 몸체(2)의 전면부에 사각으로 절개된 절개부(4)가 형성되어 있다. 이 절개부(4)에는 투명한 소재로 마련된 투시부(3)가 끼워져 결합된다. 그리고 투시부(3)가 결합되는 양측에는 조작버튼이 결합되는 구멍(5)이 형성되어 있다. 또한, 몸체(2)의 후방에는 회로기판(6)이 결합되어 있다. 이 회로기판(6)에는 전면에 돌출되게 결합된 프레임부(7) 전면에는 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름(8)이 부착되어 있다.1 is an exploded perspective view of the circuit board case 1. The circuit board case 1 is formed with a cutout 4 cut in a square at a front portion of the body 2 exposed to the outside of the refrigerator door. The cut-out part 4 is fitted with the see-through part 3 made of a transparent material. And holes (5) to which the operation button is coupled is formed on both sides to which the see-through portion 3 is coupled. In addition, the circuit board 6 is coupled to the rear of the body 2. On the circuit board 6, a film 8 having various symbols printed on the front surface of the frame portion 7 protrudingly coupled to the front surface is printed.

따라서 회로기판(6)을 회로기판 케이스(1)에 결합시 상기 필름(8)부분이 회로기판 케이스 전면의 투시부(3)를 통해 보이는 구조로 되어있다.Therefore, when the circuit board 6 is coupled to the circuit board case 1, the film 8 portion is visible through the see-through portion 3 on the front surface of the circuit board case.

이와 같이 구성된 종래의 회로기판 케이스(1)는 몸체(2)와 투시부(3)가 별도의 형틀에서 사출되어 제작된 후 상호 끼워져 결합되고, 상기 필름(8)은 회로기판 전면에 돌출된 프레임부(7)에 부착된 후 상호 결합되었다.In the conventional circuit board case 1 configured as described above, the body 2 and the see-through part 3 are manufactured by being ejected from a separate mold, and then inserted into and coupled to each other, and the film 8 is a frame protruding from the front of the circuit board. After attaching to the part 7, they were joined together.

그러나 이와 같은 냉장고 회로기판 케이스(1) 제조방법은 몸체(2)와 투시부(3)가 끼워져 결합되므로 상호 결합된 부위에 틈이 생기게 되는데, 이틈으로 정전기가 침투되어 내부의 회로기판(6)이 손상되는 문제가 있었다. 즉, 사용자가 냉장고의 기능을 조작하는 과정에서 정전기가 발생되는 경우가 있는데, 이 정전기가 상기 틈사이로 침투되어 회로기판(6)에 영향을 미치게 되는 것이다.However, in the method of manufacturing the refrigerator circuit board case 1 as described above, since the body 2 and the see-through part 3 are fitted together, a gap is formed in the mutually coupled portions, and static electricity penetrates into this gap, thereby preventing the internal circuit board 6. There was a problem of being damaged. That is, when a user manipulates the function of the refrigerator, static electricity may be generated, and the static electricity penetrates through the gap to affect the circuit board 6.

또한, 각 부분이 별도로 성형한 후 상호 조립하는 작업과 냉장고의 가동상태를 표시하는 상기 필름(8)을 부착하는 작업이 별도로 수행됨에 따라 작업공수가 많은 문제가 있었다.In addition, there is a problem that a lot of work maneuver as each part is molded separately and the operation of assembling with each other and attaching the film 8 indicating the operation state of the refrigerator are performed separately.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 투시부와 몸체를 하나의 형틀속에서 순차적으로 성형하여 상호 일체가 되게 함으로써 틈이 생기는 것을 방지하고, 필름을 부착하는 작업을 사출과정에서 동시에 수행하여 작업공수가 감소되고, 이로 인해 외관이 미려한 냉장고 회로기판 케이스 제조방법을 제공하는 것이다.The present invention is to solve such a problem, an object of the present invention is to form a sequential part and the body in one mold in order to be integrated with each other to prevent the occurrence of gaps, and to inject the operation to attach the film Simultaneously carried out in the process is reduced labor, thereby providing a refrigerator circuit board case manufacturing method with a beautiful appearance.

도 1은 종래 냉장고의 회로기판 케이스 구조를 보인 분해 사시도이다.1 is an exploded perspective view illustrating a circuit board case structure of a conventional refrigerator.

도 2는 본 발명에 따른 냉장고 회로기판 케이스의 전체 사시도이다.2 is an overall perspective view of a refrigerator circuit board case according to the present invention.

도 3, 4, 5, 6은 본 발명에 따른 회로기판 케이스의 제조과정을 단계 별로 도시한 단면도이다.3, 4, 5, and 6 are cross-sectional views showing the manufacturing process of the circuit board case according to the present invention step by step.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 회로기판 케이스, 11: 몸체, 12: 투시부,10: circuit board case, 11: body, 12: see through,

13: 필름, 20: 하측형틀, 31: 제 1상측형틀,13: film, 20: lower mold, 31: first upper mold,

32: 제 2상측형틀.32: second upper mold.

상기의 목적을 달성하기 위한 본 발명은, 하측형틀의 내측 바닥면에 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름을 위치시키고 상기 하측형틀에 제 1상측형틀을 결합하는 단계,In order to achieve the above object, the present invention comprises the steps of placing a film printed with various symbols indicating the operating state of the refrigerator on the inner bottom surface of the lower mold and coupling the first upper mold to the lower mold,

상기 하측형틀과 상기 제 1상측형틀 사이의 공간부에 투명한 액상의 성형재료를 사출하여 상기 필름과 일체로 성형되는 투시부를 형성하는 단계,Forming a transparent part integrally formed with the film by injecting a transparent liquid molding material into the space portion between the lower mold and the first upper mold;

상기 투시부가 성형된 상태에서 상기 제 1상측형틀을 제거하고 상기 하측형틀에 제 2상측형틀을 결합하는 단계,Removing the first upper mold and coupling a second upper mold to the lower mold in the transparent part;

상기 하측형틀과 상기 제 2상측형틀 사이의 공간부에 액상의 성형재료를 사출하여 상기 투시부와 일체로 성형되는 몸체를 성형하는 단계를 포함하는 것을 특징으로 한다.And injecting a liquid molding material into the space portion between the lower mold and the second upper mold to mold the body integrally formed with the see-through portion.

이하에서는 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

본 발명에 따른 냉장고의 회로기판 케이스는 냉장고 도어의 전면부에 부착되는데, 도 2에 도시된 바와 같이, 그 내부 회로기판(미도시)이 결합되도록 내부공간이 비어있는 플라스틱 성형물이다. 이 회로기판 케이스(10)는 불투명한 소재로 사출 성형된 몸체(11)와 이 몸체(11)의 전면부에 형성된 투시부(12)로 이루어지며, 투시부(12)에는 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름(13)이 부착된다. 이 회로기판 케이스(10)는 몸체(11)와 투시부(12)가 일체로 구성되고, 투시부(12)에 부착되는 필름(13)이 성형과정에서 부착되는데, 이러한 제조방법을 도 3, 4, 5, 6을 참조하여 순서적으로 설명한다.The circuit board case of the refrigerator according to the present invention is attached to the front part of the refrigerator door. As shown in FIG. 2, the internal molded circuit is empty so that the internal circuit board (not shown) is coupled. The circuit board case 10 is composed of an injection molded body 11 made of an opaque material and a see-through portion 12 formed on the front portion of the body 11, and the see-through portion 12 shows the operation state of the refrigerator. The film 13 on which various symbols to display are printed is attached. The circuit board case 10 is composed of a body 11 and a see-through portion 12 integrally, and a film 13 attached to the see-through portion 12 is attached in the molding process, this manufacturing method is shown in Figure 3, It demonstrates in order with reference to 4, 5, 6.

회로기판 케이스(10)의 제작에는 회로기판 케이스(10)의 외형에 상응하는 형상으로 함몰되게 형성된 하측형틀(20)과 회로기판 케이스(10)의 내부면에 상응하는 형상으로 돌출되게 형성된 상측형틀(31,32)이 상호 결합되어, 두 형틀사이에 형성되는 공간부에 액체상태의 성형재료가 사출되게 된다.In the manufacture of the circuit board case 10, the lower mold 20 formed to be recessed in a shape corresponding to the outer shape of the circuit board case 10 and the upper mold formed to protrude in a shape corresponding to the inner surface of the circuit board case 10. (31, 32) are mutually coupled, and the liquid molding material is injected into the space formed between the two molds.

상기 하측형틀(20)은 회로기판 케이스(10)를 성형한 후에 회로기판 케이스(10)의 분리가 용이하도록, 좌우로 분리가 가능하게 마련된다. 그리고 상측형틀(31,32)은 상기 투시부(12)를 성형하기 위한 제 1상측형틀(31)과 상기 몸체부(11)를 성형하기 위한 제 2상측형틀(32)로 마련되며, 이들은 제조 순서에 따라 교체되게 된다.The lower mold 20 is formed to be separated from side to side to facilitate separation of the circuit board case 10 after molding the circuit board case 10. And the upper mold (31,32) is provided with a first upper mold 31 for forming the see-through portion 12 and a second upper mold 32 for molding the body portion 11, these are manufactured It will be replaced in order.

도 3과 도 4를 참조하면, 먼저 본 발명에 따른 회로기판 케이스 제작의 첫 번째 단계로 상호 결합된 두 하측형틀(20)의 내측 바닥면(21), 즉 상기 투시부(12)가 형성될 위치에, 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름(13)을 위치시킨 후, 하측형틀(20)에 제 1상측형틀(31)이 결합된다. 이때 제 1상측형틀(31)과 하측형틀(20) 사이에는 투시부(12)가 형성될 공간(12')만 남고, 나머지 공간은 제 1상측형틀(31)에 의해 채워지거나 구획되게 된다.Referring to FIGS. 3 and 4, first, the inner bottom surface 21 of the two lower molds 20, that is, the perspective part 12, may be formed as a first step in fabricating a circuit board case according to the present invention. After placing the film 13 printed with various symbols indicating the operating state of the refrigerator at the position, the first upper mold 31 is coupled to the lower mold 20. At this time, only the space 12 ′ in which the transparent part 12 is to be formed remains between the first upper mold 31 and the lower mold 20, and the remaining space is filled or partitioned by the first upper mold 31.

다음으로 상기 투시부가 형성될 공간(12')에 투명한 액체상태의 성형재료를 사출하면 상기 필름(13)이 투시부(12)와 일체로 성형되게 된다.Next, when the transparent molding material is injected into the space 12 ′ in which the transparent part is to be formed, the film 13 is integrally formed with the transparent part 12.

도 5를 참조하면, 상기 투시부(12)가 성형되어 어느정도 굳어지면, 다음 단계로 회로기판 케이스(10)의 몸체부(11)를 성형하기 위해 상기 제 1상측형틀(31)을 제 2상측형틀(32)로 교체하여 결합시킨다. 이때 하측형틀(20)과 제 2상측형틀(32) 사이에는 이미 형성된 투시부(12)가 끼워진 상태가 되어 일부 공간을 차지하게 되고, 몸체부(11)가 형성될 공간(11')이 좌우에 빈 상태로 남게 된다.Referring to FIG. 5, when the transparent part 12 is molded and hardened to some extent, the first upper mold 31 is formed on the second upper side in order to mold the body part 11 of the circuit board case 10 to the next step. Replace by replacing the mold (32). At this time, between the lower mold 20 and the second upper mold 32, the already formed see-through part 12 is fitted to occupy some space, and the space 11 'on which the body part 11 is to be formed is left and right. Will be left empty.

이 상태에서 상기 빈 공간(11')에 몸체부(11)를 형성할 액체상태의 성형재료를 사출하게 되면, 몸체부(11)가 성형되면서 상기 투시부(12)의 외측단과 일체로 결합되어 이들이 하나의 성형물을 이루게 된다. 여기에서 투시부(12)의 외측단은 턱(12a)이 형성되어 몸체(11)와의 결합이 견고하게 이루어지도록 하는 것이 바람직하다.In this state, when the molding material in the liquid state to form the body portion 11 is injected into the empty space 11 ', the body portion 11 is integrally formed with the outer end of the see-through portion 12 while being molded. They form one molding. Here, the outer end of the see-through portion 12 is preferably formed so that the jaw 12a is formed to be firmly coupled to the body (11).

다음으로 도 6에 도시된 바와 같이, 몸체부의 성형물이 굳어진 후에 제 2상측형틀(32)과 두 개의 하측형틀(20)을 분리하면, 투시부(12)에 필름(13)이 부착된 상태에서 투시부(13)와 몸체(11)가 일체로 제작된 상태가 된다.Next, as shown in FIG. 6, after the molding of the body part is hardened, when the second upper mold 32 and the two lower molds 20 are separated, the film 13 is attached to the see-through part 12. The see-through part 13 and the body 11 are in a state made integrally.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 냉장고 회로기판 케이스 제조방법은 외부로 노출되는 투시부와 몸체가 성형과정에서 일체로 제작되고, 또한 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름도 성형과정에서 부착됨에 따라, 제작공정이 크게 단순화 되고, 몸체와 투시부사이에 틈이 생기지 않아 정전기의 침투가 방지되며, 상호 일체로 제작됨으로써 외관이 미려한 장점이 있다.As described in detail above, in the refrigerator circuit board case manufacturing method according to the present invention, the transparent part exposed to the outside and the body are manufactured integrally in the molding process, and also a film printed with various symbols indicating the operating state of the refrigerator. As it is attached in the molding process, the manufacturing process is greatly simplified, there is no gap between the body and the see-through part to prevent the penetration of static electricity, and the appearance is beautiful by being manufactured integrally with each other.

Claims (1)

하측형틀의 내측 바닥면에 냉장고의 가동상태를 표시하는 각종 기호가 인쇄된 필름을 위치시키고 상기 하측형틀에 제 1상측형틀을 결합하는 단계,Placing a film on which the various symbols indicating the operating state of the refrigerator are printed on the inner bottom surface of the lower mold and coupling the first upper mold to the lower mold; 상기 하측형틀과 상기 제 1상측형틀 사이의 공간부에 투명한 액상의 성형재료를 사출하여 상기 필름과 일체로 성형되는 투시부를 형성하는 단계,Forming a transparent part integrally formed with the film by injecting a transparent liquid molding material into the space portion between the lower mold and the first upper mold; 상기 투시부가 성형된 상태에서 상기 제 1상측형틀을 제거하고 상기 하측형틀에 제 2상측형틀을 결합하는 단계,Removing the first upper mold and coupling a second upper mold to the lower mold in the transparent part; 상기 하측형틀과 상기 제 2상측형틀 사이의 공간부에 액상의 성형재료를 사출하여 상기 투시부와 일체로 성형되는 몸체를 성형하는 단계를 포함하는 것을 특징으로 하는 냉장고 회로기판 케이스 제조방법.And injecting a liquid molding material into a space portion between the lower mold and the second upper mold to form a body integrally formed with the see-through portion.
KR1019970049454A 1997-09-27 1997-09-27 Manufacturing method for refrigerator circuit board case Expired - Fee Related KR100242568B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100484805B1 (en) * 2002-07-11 2005-04-22 엘지전자 주식회사 Cabinet structure of washing machine

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KR100465694B1 (en) * 2002-03-25 2005-01-13 주식회사 엘지이아이 Control panel structure and control panel manufacturing mold of washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100484805B1 (en) * 2002-07-11 2005-04-22 엘지전자 주식회사 Cabinet structure of washing machine

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