KR100261692B1 - A jointing structure of the circuit board for microwave oven - Google Patents

A jointing structure of the circuit board for microwave oven Download PDF

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Publication number
KR100261692B1
KR100261692B1 KR1019970048343A KR19970048343A KR100261692B1 KR 100261692 B1 KR100261692 B1 KR 100261692B1 KR 1019970048343 A KR1019970048343 A KR 1019970048343A KR 19970048343 A KR19970048343 A KR 19970048343A KR 100261692 B1 KR100261692 B1 KR 100261692B1
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South Korea
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circuit board
control panel
pcb
boss
microwave oven
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KR1019970048343A
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Korean (ko)
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KR19990026284A (en
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이정희
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윤종용
삼성전자주식회사
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6435—Aspects relating to the user interface of the microwave heating apparatus
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)

Abstract

PURPOSE: Structure for connecting a PCB(Printed Circuit Board) of a microwave oven is provided to prevent mis-operation of a control switch by assembling a PCB in an accurate position and to improve productivity by making assembling easy. CONSTITUTION: A control panel(40) covering a control unit comprising a PCB(70), many control switches(42) and contact switches(72) is fixed on a front panel. The PCB is connected by forming a jig(44) in a boss(43) of the control panel. By using the jig, a gap is reduced and a connecting position of the PCB is accurately set up. Therefore, the control switch accurately contacts with the contact switch and mix-operation due to defective contact of the switch is avoided. According to direct fitting of a connecting hole(74) of the PCB with the jig of the boss and assembling via a screw(71), assembling efficiency is improved and productivity is promoted.

Description

전자렌지의 회로기판 체결구조Circuit board fastening structure of microwave oven

본 발명은 전자렌지의 회로기판 체결구조에 관한 것으로, 특히 회로기판이 정확한 위치에 조립되도록 하여 조작스위치의 오작동을 방지할 수 있도록 함과 아울러 조립이 용이하여 생산성을 향상시킬 수 있도록 한 전자렌지의 회로기판 체결구조에 관한 것이다.The present invention relates to a circuit board fastening structure of a microwave oven, and in particular, to ensure that the circuit board is assembled at the correct position to prevent malfunction of the operation switch, and also easy to assemble to improve productivity of the microwave oven. It relates to a circuit board fastening structure.

일반적으로 전자렌지는 마그네트론에서 발진하는 마이크로파(2450㎒의 고주파)가 음식물(유전체)에 조사되어 이 조사된 마이크로파의 주파수에 따라 음식물의 분자가 활발한 운동으로 서로 충돌 마찰이 일어나게 되고, 이에 따라 음식물 자체의 발열에 의해 가열 조리되도록 하는 유전가열을 이용한 것이다.In general, microwaves oscillate from a magnetron (high frequency of 2450MHz) is irradiated to food (dielectric), and the molecules of food are actively collided with each other according to the frequency of the irradiated microwaves. Dielectric heating is used to heat and cook by heating.

즉, 음식물이 전계에 위치된 상태에서 전계의 극성이 변환됨에 따라 전기적 평행 상태인 분자의 배열이 주파수 극성 변화에 따라 변경되면서 분자가 마찰 및 발열하게 되는 것이다.In other words, as the polarity of the electric field is converted in the state where the food is placed in the electric field, the arrangement of the molecules in an electrically parallel state is changed according to the change in the frequency polarity, thereby causing the molecules to friction and generate heat.

상기와 같은 전자렌지는 도 1에 도시된 바와 같이, 캐비티(10)의 외부를 감싸는 아우트판넬(20), 프론트판넬(30), 백판넬(미도시)에 의해 외관이 형성되어 있고, 상기한 캐비티(10)에 의해 음식물을 가열 조리하는 공간인 조리실(A)과, 전자렌지의 여러 전장부품들이 장착되는 공간인 기계실(B)로 구획 형성되어 있다.As shown in FIG. 1, the microwave oven is formed by an outer panel 20, a front panel 30, and a back panel (not shown) surrounding the outside of the cavity 10. The cavity 10 is partitioned into a cooking chamber A, which is a space for heating and cooking food, and a machine room B, which is a space in which various electric components of the microwave are mounted.

즉, 상기 기계실(B)에는 도시되지 않은 마이크로파를 생성하는 마그네트론과, 조리실(A) 내부로 마이크로파를 안내하는 도파관과, 상기 마그네트론에 전원을 인가하는 고압트랜스 같은 전장부품들이 설치되어 있다.That is, the machine room B is provided with a magnetron for generating microwaves (not shown), a waveguide for guiding microwaves into the cooking chamber A, and electrical components such as a high voltage transformer for supplying power to the magnetron.

그리고, 상기 조리실(A)의 전면에는 조리실(A) 개구부를 개폐하는 도어(80)가 힌지 고정되어 있고, 조리실(60) 내부 바닥측에는 음식물 및 조리용기를 안착시켜 조리가능하도록 하는 트레이(90)가 안착되어 있다.In addition, a door 80 that opens and closes the opening of the cooking chamber A is hinged at a front surface of the cooking chamber A, and a tray 90 which allows food and cooking containers to be seated on the bottom side of the cooking chamber 60 to enable cooking. Is seated.

또한, 상기 기계실(B)의 전면 프론트판넬(30)에는 컨트롤판넬(100)이 고착되어 이 컨트롤판넬(100)에 전자렌지의 운전제어 및 음식물에 따른 조리시간 및 조리 조건등을 설정하는 조작부(C)가 구비되어 있다.In addition, the control panel 100 is fixed to the front front panel 30 of the machine room (B), the operation panel for controlling the operation of the microwave and cooking time and cooking conditions according to the food to the control panel 100 ( C) is provided.

따라서, 상기와 같이 구성된 전자렌지는, 사용자가 조리를 위해 트레이(90)에 음식물 또는 조리하고자 하는 음식물이 담긴 조리용기를 안착시킨 상태에서 상기한 조작부(C)를 조작하여 조리시간 및 조리조건을 설정한 다음, 전원을 온시키게 되면, 마그네트론에서 마이크로파가 방출됨과 아울러 도파관의 안내에 따라 마이크로파가 조리실(A)로 조사되게 되고, 상기 조사된 마이크로파가 조리실(A)내 트레이(50)에 안착되어 있는 음식물에 골고루 조사됨으로써, 음식물을 가열 조리하게 되는 것이다.Therefore, the microwave oven configured as described above operates the operation unit C in a state in which the user seats a cooking container containing food or food to be cooked in the tray 90 for cooking, thereby controlling cooking time and cooking conditions. After setting, when the power is turned on, microwaves are emitted from the magnetron and microwaves are irradiated to the cooking chamber A according to the guide of the waveguide, and the irradiated microwaves are seated on the tray 50 in the cooking chamber A. By irradiating the food evenly, the food is heated and cooked.

한편, 도 2 및 도 3에 도시된 바와 같이 상기한 조작부(C)는 전자렌지를 기능을 제어하는 각종 회로가 인쇄되어 있는 회로기판(70)과, 사용자가 회로기판(70)의 각종 회로를 조건에 따라 작용하도록 조작하는 다수의 조작스위치(42)와, 상기 조작스위치(42)가 접촉하는 접촉스위치(72)로 구성되어 있는 바, 상기 회로기판(70)은 컨트롤판넬(40)의 내측면 부착 조립되어 컨트롤판넬(40)의 보호를 받게 된다.Meanwhile, as shown in FIGS. 2 and 3, the operation unit C includes a circuit board 70 on which various circuits for controlling a function of a microwave oven are printed, and a user may select various circuits of the circuit board 70. It consists of a plurality of operation switches 42 to operate to operate according to the conditions and the contact switch 72 which the operation switch 42 is in contact, the circuit board 70 in the control panel 40 The side attachment is assembled to be protected by the control panel 40.

즉, 상기 컨트롤판넬(40) 내측면에 형성된 다수의 보스(43)에 상기 회로기판(70)에 형성된 체결공(74)이 일치시킨 후 여기에 스크류(71)를 체결함으로써, 체결부착되는 것이다.That is, the fastening holes 74 formed on the circuit board 70 coincide with the plurality of bosses 43 formed on the inner surface of the control panel 40, and then the fastening screws 74 are fastened to the fastening holes 74. .

그런데, 상기 컨트롤판넬(40)의 형성된 다수의 보스(43)에 상기 회로기판(70)에 형성된 체결공(74)을 각각 일치시켜 스크류(71)를 체결하는 것이 용이하지 않기 때문에, 상기 회로기판(70)의 체결공(71)을 컨트롤판넬(40)의 보스(43)에 용이하게 일치시킬 수 있도록 회로기판(70) 체결위치의 기준점이 되는 안내기둥(Guide Post ; 41)이 컨트롤판넬(40) 내측면 두 곳에 세워져 있다.However, since it is not easy to fasten the screw 71 by matching the fastening holes 74 formed in the circuit board 70 to the plurality of bosses 43 formed on the control panel 40, the circuit board is not easy. Guide post 41 serving as a reference point for the fastening position of the circuit board 70 so that the fastening hole 71 of the 70 can be easily matched to the boss 43 of the control panel 40. 40) It is erected on two inner sides.

즉, 상기 회로기판(70)에 형성된 삽입공(73)을 상기 안내기둥(41)에 삽입하게 되면, 상기 두 개의 안내기둥(41)이 기준점이 되어 회로기판(70)의 체결위치를 잡아주게 되고, 이에 따라 상기 회로기판(70)의 체결공(74)과 컨트롤판넬(40)의 보스(43)가 자연스럽게 일치하게 됨으로써, 여기에 스크류(71)를 체결하여 견고하게 고정시키면 되는 것이다.That is, when the insertion hole 73 formed in the circuit board 70 is inserted into the guide pillar 41, the two guide pillars 41 become reference points to hold the fastening position of the circuit board 70. As a result, the fastening hole 74 of the circuit board 70 and the boss 43 of the control panel 40 are naturally matched, so that the screw 71 is fastened firmly thereto.

그러나, 상기와 같이 회로기판(70)을 컨트롤판넬(40)에 체결함에 있어서, 상기한 두 개의 안내기둥(41)을 이용하여 체결하게 되면, 용이하게 기준점을 잡을 수 있다는 잇점이 있는 반면에, 회로기판(70)의 삽입공(73)을 안내기둥(41)에 삽입하는 것이 쉽지 않아 생산성이 저하되는 문제점이 있었다.However, in the fastening the circuit board 70 to the control panel 40 as described above, if the fastening using the two guide pillars 41, there is an advantage that can easily set the reference point, It was not easy to insert the insertion hole 73 of the circuit board 70 into the guide pillar 41, there was a problem that the productivity is lowered.

이에 안내기둥(41)과 회로기판(70)의 삽입공(73)사이에 조립 생산성 향상을 위해 상기 삽입공을 안내기둥의 지름보다 조금 크도록 하는 조립공차(b), 즉 갭(GAP)을 주게 되는 바, 이는 조립 생산성의 향상을 가져올 수 있는 반면에, 상기 조립공차(b) 때문에 회로기판(70)이 한쪽으로 약간 치우치게 되면, 상기 보스(43)와 회로기판(70)의 체결공(74) 사이에서 갭(a)이 발생하게 되고, 상기한 조작스위치(42)와 접촉스위치(72) 사이에 접촉 불량이 발생하여 오작동의 원인이 된다는 문제점이 있었다.In order to improve the assembly productivity between the guide pillar 41 and the insertion hole 73 of the circuit board 70, an assembly tolerance b, ie, a gap GAP, is formed so that the insertion hole is slightly larger than the diameter of the guide pillar. While this may lead to an improvement in assembly productivity, when the circuit board 70 is slightly biased to one side due to the assembly tolerance b, the fastening hole of the boss 43 and the circuit board 70 may be reduced. There is a problem that a gap (a) is generated between 74), and a poor contact occurs between the operation switch 42 and the contact switch 72, causing a malfunction.

이에 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로써, 본 발명의 목적은 컨트롤판넬에 회로기판을 나사결합할 때, 컨트롤판넬에 형성된 보스가 지그 역할을 할 수 있도록 함으로써, 회로기판이 정확한 위치에 조립되도록 하여 조작스위치의 오작동을 방지할 수 있도록 함과 아울러 조립이 용이하여 생산성을 향상시킬 수 있도록 하는 전자렌지의 회로기판 체결구조를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to allow the boss formed on the control panel to act as a jig when screwing the circuit board to the control panel, the circuit board is It is to provide a circuit board fastening structure of the microwave oven to be assembled in the correct position to prevent the malfunction of the operation switch and to facilitate the assembly to improve the productivity.

상기 목적을 달성하기 위하여 이루어진 본 발명은, 프론트판넬에 고착된 컨트롤판넬 내측면에 형성됨과 아울러 스크류홈이 형성된 다수의 보스와, 상기 보스와 대향되게 형성된 회로기판의 체결공을 상기 보스에 일치시킨 후 여기에 나사로 체결하여 회로기판을 컨트롤판넬 내측면에 체결하도록 된 전자렌지의 회로기판 체결구조에 있어서, 상기 회로기판의 체결공이 상기 보스에 끼워진 후에 나사로 체결 될 수 있도록 상기 보스에 지그부가 형성되어 있는 것을 특징으로 한다.The present invention has been made to achieve the above object, a plurality of bosses formed on the inner surface of the control panel fixed to the front panel and the screw groove is formed, and the fastening holes of the circuit board formed to face the boss to match the boss In the circuit board fastening structure of the microwave oven to fasten the circuit board to the inner side of the control panel by screwing therein, the jig portion is formed on the boss so that the fastening hole of the circuit board can be screwed after being fitted to the boss. It is characterized by being.

제1도는 종래의 전자렌지를 나타내는 사시도,1 is a perspective view showing a conventional microwave oven,

제2도는 종래에 회로기판이 칸트롤판넬의 안내기둥에 끼워진 후 나사로 체결된 상태를 나타내는 평면도,2 is a plan view showing a state in which a circuit board is conventionally screwed after being inserted into a guide pillar of a can control panel;

제3도는 종래에 회로기판과 컨트롤판넬의 체결상태를 도시한 단면도,3 is a cross-sectional view showing a state in which a circuit board and a control panel are conventionally connected;

제4도는 종래에 컨트롤판넬의 보스와 회로기판의 체결상태를 도시한 요부단면도,4 is a cross-sectional view showing a main part of a conventional state in which a boss of a control panel and a circuit board are fastened;

제5도는 제2도의 대응도로써, 본 발명에 따른 회로기판이 컨트롤판넬에 나사로 체결된 상태를 나타내는 평면도,5 is a plan view showing a state in which a circuit board according to the present invention is fastened with screws to a control panel according to FIG.

제6도는 본 발명에 따른 회로기판과 컨트롤판넬의 체결상태를 도시한 단면도,6 is a cross-sectional view showing a fastening state of a circuit board and a control panel according to the present invention;

제7도는 본 발명에 따른 컨트롤판넬의 보스와 회로기판의 체결상태를 도시한 요부단면도이다.7 is a sectional view showing the main parts of the control panel boss and the circuit board according to the present invention.

＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

10 : 캐비티 20 : 아우트판넬10: cavity 20: outer panel

30 : 프론트판넬 40 : 컨트롤판넬30: front panel 40: control panel

41 : 안내기둥 42 : 조작스위치41: guide pillar 42: operation switch

43 : 보스 44 : 지그부43: boss 44: jig

50 : 트레이 60 : 도어50: tray 60: door

70 : 회로기판 71 : 나사70: circuit board 71: screw

72 : 접촉스위치 73 : 삽입공72: contact switch 73: insertion hole

74 : 체결공 A : 조리실74: fastener A: cooking chamber

B : 기계실 C : 조작부B: machine room C: control panel

이하, 본 발명에 관하여 첨부도면을 참조하면서 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 5는 도 2의 대응도로써, 본 발명에 따른 회로기판이 컨트롤판넬에 나사로 체결된 상태를 나타내는 평면도이고, 도 6는 본 발명에 따른 회로기판과 컨트롤판넬의 체결상태를 도시한 단면도이며, 도 7은 본 발명에 따른 컨트롤판넬의 보스와 회로기판의 체결상태를 도시한 요부단면도이다.FIG. 5 is a plan view illustrating a state in which a circuit board according to the present invention is screwed to a control panel, and FIG. 6 is a cross-sectional view illustrating a state in which a circuit board and a control panel according to the present invention are fastened. 7 is a cross-sectional view illustrating main parts of a control panel boss and a circuit board according to the present invention.

후술하는 본 발명에서 종래 도면에서 인용한 설명 및 본 발명의 도면과 종래 도면과 동일한 구성에 대해서는 동일명칭 및 동일부호를 부여하고, 그에 대한 상세한 설명은 생략한다.In the present invention described below, the same reference numerals and the same reference numerals are used for the descriptions cited in the conventional drawings and the same configurations as the drawings and the conventional drawings of the present invention, and detailed description thereof will be omitted.

본 발명은 운전제어 및 음식물에 따른 조리시간 및 조리조건등을 설정하는 조작부(C)가 구비되어 있고, 이 조작부(C)를 커버하는 컨트롤판넬(40)이 프론트판넬(30)에 고착되어 있는 바, 상기 조작부(C)는 전자렌지를 기능을 제어하는 각종 회로가 인쇄되어 있는 회로기판(70)과, 사용자가 회로기판(70)의 각종 회로를 조건에 따라 작용하도록 조작하는 다수의 조작스위치(42)와, 상기 조작스위치(42)가 접촉하는 접촉스위치(72)로 구성되어 있다.The present invention is provided with an operation unit (C) for setting operation control and cooking time and cooking conditions according to food, and the control panel 40 covering the operation unit (C) is fixed to the front panel (30) The operation unit C includes a circuit board 70 on which various circuits for controlling a function of a microwave oven are printed, and a plurality of operation switches for operating a user to operate various circuits of the circuit board 70 according to conditions. The contact switch 72 which the operation switch 42 contacts 42 is comprised.

여기서, 상기 회로기판(70)에는 다수의 체결공(74)이 형성되고, 상기 컨트롤판넬(40)에는 다수의 보스(43)가 형성되어 있어, 상기 체결공(74)을 상기 보스(43)에 일치시킨 후 나사(71)를 체결함으로써, 상기한 바와 같이, 회로기판(70)이 컨트롤판넬(40) 내측면에 체결되는 것이다.Here, a plurality of fastening holes 74 are formed in the circuit board 70, and a plurality of bosses 43 are formed in the control panel 40, so that the fastening holes 74 may be formed in the boss 43. By fastening the screws 71 after matching with each other, as described above, the circuit board 70 is fastened to the inner surface of the control panel 40.

이때, 상기 회로기판(70)의 체결공(74)이 상기 보스(43)에 끼워진 후에 나사(71)로 체결될 수 있도록 상기 보스(43) 상단 외주면에 상기 회로기판(70)의 두께 만큼 단차된 지그부(44)가 형성되어 있다.At this time, the fastening hole 74 of the circuit board 70 is stepped by the thickness of the circuit board 70 on the outer peripheral surface of the upper end of the boss 43 so that the fastening hole 74 of the circuit board 70 can be fastened with the screw 71. Jig part 44 is provided.

따라서, 상기와 같이 컨트롤판넬(40)의 보스(43)에 지그부(44)를 형성하여 회로기판(70)을 체결하게 되면, 다음과 같은 효과가 있다.Therefore, when the jig portion 44 is formed on the boss 43 of the control panel 40 to fasten the circuit board 70 as described above, the following effects are obtained.

우선, 종래의 안내기둥(41)을 사용하여 회로기판(70)의 체결할 때, 부여하게 되는 조립공차(b)를 주지 않아도 됨으로써, 회로기판(70) 체결시 발생하던 갭을 줄여 보다 더 정확히 회로기판(70)의 체결위치를 잡아줄 수 있게 되고, 이에 따라 상기 조작스위치(42)와 접촉스위치(72) 사이에 접촉을 정확히 이끌어 낼 수 있어 스위치의 접촉 불량에 의한 오작동을 방지할 수 있다.First, when the circuit board 70 is fastened by using the conventional guide pillar 41, it is not necessary to provide an assembly tolerance (b) to be provided, thereby reducing the gap generated when the circuit board 70 is fastened more accurately. It is possible to hold the fastening position of the circuit board 70, and thus it is possible to accurately draw a contact between the operation switch 42 and the contact switch 72, thereby preventing malfunction of the switch due to poor contact. .

또한, 종래에 안내기둥(41)에 회로기판(70)의 삽입공(73)을 일치시켜 삽입한 후 상기 보스(43)와 회로기판(70)의 체결공(74)을 일치시켜 나사(71)로 체결하던 조립과정에서 안내기둥(41)에 회로기판(70)의 삽입공(73)을 일치시키는 조립과정을 없애고, 직접 상기 보스(41)의 지그부(44)에 회로기판(70)의 체결공(74)을 끼운 후에 나사(71) 조립하게 됨으로써, 조립성이 개선되어 생산성이 향상되는 잇점이 있다.In addition, after inserting the insertion hole 73 of the circuit board 70 to match the guide pillar 41 in the prior art, the boss 43 and the fastening hole 74 of the circuit board 70 coincide with the screw 71. The assembly process of matching the insertion hole 73 of the circuit board 70 to the guide pillar 41 in the assembling process was eliminated, and the circuit board 70 directly to the jig part 44 of the boss 41. By assembling the screw 71 after inserting the fastening hole 74, there is an advantage that the assembly performance is improved and productivity is improved.

상기한 바와 같이 본 발명에 의하면, 컨트롤판넬의 보스에 지그부를 형성하여 회로기판의 체결공을 직접 보스의 지그부에 끼운 후에 나사로 체결함으로써, 회로기판의 정확한 체결위치 고정으로 스위치의 접촉 불량에 의한 오작동을 방지할 수 있을 뿐만 아니라 조립성의 개선으로 생산성이 향상되는 효과가 있다.As described above, according to the present invention, the jig part is formed in the boss of the control panel, and the fastening hole of the circuit board is directly inserted into the jig part of the boss, and then fastened with a screw, thereby preventing the contact of the switch by fixing the correct fastening position of the circuit board. Not only can malfunction be prevented, but also productivity is improved due to improved assembly.

Claims (1)

프론트 판넬에 고착된 컨트롤 판넬의 내측면에 형성됨과 아울러 스크류홈이 형성된 다수의 보스와, 상기 보스와 대향되게 형성된 회로기판의 체결공을 상기 보스에 일치시킨 후 여기에 나사로 체결하는 회로기판을 구비한 전자렌지에 있어서, 상기 회로기판의 체결공이 상기 보스에 끼워진 후에 나사로 체결될 수 있도록 상기 보스의 상단 외주면에는 상기 회로기판의 두께만큼 단차되어 상기 회로기판의 체결공이 끼워지는 지그부가 형성되어 있는 것을 특징으로 하는 전자렌지의 회로기판 체결구조.A plurality of bosses formed on the inner side of the control panel fixed to the front panel and formed with screw grooves, and a circuit board for screwing the fastening holes of the circuit boards facing the bosses with the bosses and then screwing them into the bosses. In one microwave oven, a jig portion is formed on the outer circumferential surface of the upper end of the boss so that the fastening hole of the circuit board can be fastened with a screw after the fastening hole of the circuit board is fitted into the boss so that the fastening hole of the circuit board is fitted. The circuit board fastening structure of the microwave oven characterized by the above-mentioned.
KR1019970048343A 1997-09-23 1997-09-23 A jointing structure of the circuit board for microwave oven KR100261692B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100942570B1 (en) 2002-12-30 2010-02-17 엘지전자 주식회사 A structure of control panel for microwave oven
KR100942569B1 (en) * 2002-12-30 2010-02-17 엘지전자 주식회사 A structure of control panel for microwave oven

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440275U (en) * 1977-08-24 1979-03-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440275U (en) * 1977-08-24 1979-03-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100942570B1 (en) 2002-12-30 2010-02-17 엘지전자 주식회사 A structure of control panel for microwave oven
KR100942569B1 (en) * 2002-12-30 2010-02-17 엘지전자 주식회사 A structure of control panel for microwave oven

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