KR970004675B1

KR970004675B1 - Door for a microwave oven

Info

Publication number: KR970004675B1
Application number: KR1019940024535A
Authority: KR
Inventors: 조윤호
Original assignee: 대우전자 주식회사; 배순훈
Priority date: 1994-09-28
Filing date: 1994-09-28
Publication date: 1997-04-02
Also published as: KR960011295A

Abstract

The up/down type door opening/closing sensing device of microwave oven has a slider(1) which forms an operation protrusion(1a) by which a door(12) is supported upon opening and rotates a rotary lever(4) upon closing. The operation protrusion(1a) is inserted into a boss(2a) of a bracket(2) and a pair of snap pins(2b)(2c) on the circumference of the boss and a stopper(2d) for limiting a rotating distance. The rotary lever(4) for operating a secondary safety switch(5), a D.O.M switch(6), a monitor switch(7) operating rotary lever(4) is comprised of a boss hole(4a) and a guide hole(4d) which are coupled to an original position recovering elastic spring(3). The operating rotating lever(4) is adapted to operate a rotating hole(4e) in a door opening/closing direction. Then, a primary safety switch(11) operating reciprocating lever(8) is operated by means a door frame of the door(12).

Description

Microwave up / down door open / close detection device

제1도는 본 발명의 도어오픈시 도어개폐 감지장치를 도시한 측면도.Figure 1 is a side view showing a door opening and closing detection device at the door opening of the present invention.

제2도는 본 발명의 도어클로즈시 도어개폐 가지장치를 도시한 측면도.Figure 2 is a side view showing a door opening and closing branch device when closing the door of the present invention.

제3도는 본 발명의 브라켓 및 이에 체결되는 회동레버의 구조를 도시한 분해사시도.Figure 3 is an exploded perspective view showing the structure of the bracket and the pivoting lever fastened to the present invention.

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

1 : 슬라이더 1a : 작동편1: Slider 1a: Operation Piece

2,9,15 : 브라켓 2a : 보스2,9,15: Bracket 2a: Boss

2b,2c : 스냅핀 2d,15a : 스토퍼2b, 2c: Snap pin 2d, 15a: Stopper

4 : 회동레버 4a : 보스공4: rotation lever 4a: boss ball

4b,4c,4d : 가이드공 4e : 회동구4b, 4c, 4d: Guide ball 4e: Hoedonggu

8 : 왕복레버 11a : 접점돌기8: Reciprocating lever 11a: Contact protrusion

본 발명의 전자렌지의 업/다운식 도어개폐 감지장치에 관한 것으로, 특히 도어개폐시 1차안전스위치 온/오프용 왕복레버와 도어와의 접촉부위를 변경하여 고주파누설을 방지하고, 2차안전, D.O.M 및 모니터스위치 온/오프용 회동레버의 작동을 보다 원활하게 한 전자렌지의 업/다운식 도어개폐 감지장치에 관한 것이다.The present invention relates to an up / down door opening / closing detection device of a microwave oven. In particular, when a door is opened and closed, the contact point between the primary safety switch on / off reciprocating lever and the door is changed to prevent high frequency leakage, and the secondary safety The present invention relates to an up / down door opening / closing detection device for a microwave oven, which smoothly operates a DOM and a monitor switch on / off rotation lever.

일반적으로 업/다운식 도어개폐방식의 전자렌지는, 도어의 후크에 의해 작동되는 레버의 작동에 따라 도어개폐장치를 작동시키는 레버에 으해서 1,2차안전, D.O.M, 모니터스위치를 작동시키는 측면 도어개폐방식의 전자렌지와 유사한 방식으로서 슬라이더의 작동에 의한 도어개폐장치가 2차안전, D.O.M, 모니터스위치를 1차로 작동시키고, 1차안전스위치는 도어에 의해 2차로 작동되도록 되어있다.In general, the up / down door open / close type microwave oven is a lever that operates the door open / close device according to the operation of the lever operated by the hook of the door. Similar to the door open / closed microwave oven, the door open / close device by the slider operation operates the 2nd safety, DOM, monitor switch as the primary, and the 1st safety switch is operated by the door.

그러나 업/다운식 도어개폐장치의 슬라이더 작동에 의해 작동되는 회동레버는 그 힘을 받는 방향이 도어개폐방향과 일치하지 않아 힘을 제대로 받지못하기 때문에 회동레버의 작동이 원활하지 못하고, 도어개폐장치가 아닌 도어에 의해 작동되는 1차안전스위치는 그 작동구조가 왕복레버에 의한 것인데, 그 왕복레버는 도어의 업소버에 접촉되므로 인해 그 접촉충격이 도어와 형합구조인 업소버에 가해져 변형 또는 이에 의해 도어프레임 및 도어스키린과 업소버사이에 갭이 발생하여 고주파누설의 우려가 있는 문제점이 있었다.However, the rotation lever operated by the slider operation of the up / down door open / close device does not correspond to the door open / close direction, so it does not receive the force properly. The primary safety switch operated by the door is not by the reciprocating lever, but because the reciprocating lever is in contact with the absorber of the door, the contact shock is exerted on the absorber which is in combination with the door. There was a problem in that there is a risk of high frequency leakage due to the gap between the frame and door skin and the absorber.

따라서 본 발명은 상기의 문제점을 고려하여 회동레버와 그 취부구조를 변경하여 작동을 원활하게 하므로써 2차안전, D.O.M, 모니터스위치의 작동을 원활하게 하고, 도어를 구성하는 부품의 형합구조를 조립초기상태로 유지하여 고주파누설을 방지토록 한 전자렌지의 업/다운식 도어개폐 감지장치를 제공함에 그 목적이 있는 것이다.Therefore, the present invention facilitates the operation of the secondary safety, DOM, monitor switch by changing the rotation lever and its mounting structure in consideration of the above problems, and assembling the assembly structure of the parts constituting the door The purpose of the present invention is to provide an up / down door opening / closing detection device of a microwave oven to maintain a state to prevent high frequency leakage.

상기의 본 발명의 목적은 도어개폐장치의 슬라이더에 형성된 작동편으로 브라켓의 보스 및 스냅핀과 스토퍼에 삽설도어 탄성스프링에 체결되는 보스공과 가이드공을 가진 회동레버를 작동되게 하고, 도어의 도어프레임에 의해 와복레버를 작동시키므로써 달성되는 것이다.The object of the present invention is to operate the rotary lever having a boss and a guide hole fastened to the spring and the snap pin and the stopper of the bracket into the operating piece formed on the slider of the door opening and closing device, the door frame of the door Is achieved by operating the vortex lever.

이하, 본 발명의 기술구성과 그 작용효과를 첨부된 도면에 의거하여 상세하게 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention and its operation and effect will be described in detail with reference to the accompanying drawings.

제1도는 도어오픈시 도어개폐 감지장치를 도시한 것이고, 제2도는 도어클로즈시 도어개폐 감지장치를 도시한 것이고, 특히 제3도는 브라켓 및 이에 체결되어 2차안전, D.O.M, 모니터스위치를 온/오프시키는 회동레버의 구조를 도시한 것으로, 이에 도시한 바와 같이 본 발명은 전자렌지의 업/다운식 도어개폐 감지장치에 있어서, 도어개폐장치의 슬라이더(1)에 도어오픈시 도어지지 및 도어클로지시 회동레버 회동용 작동편(1a)을 형성하여 이 작동편(1a)이 브라켓(2)의 보스(2a)의 및 그 둘레의 체결용 한쌍의 스냅핀(2b)(2c)과 회동거리 한정용 스토퍼(2d)에 삽설되며 브라켓(2)의 원위치 복원용 탄성스프링(3)에 체결되는 보스공(4a)과 구획된 가이드공(4b)(4c)(4d)을 가진 2차안전(5), D.O.M(6), 모니터스위치(7) 작동용 회동레버(4)의 회동구(4e)를 도어개폐방향으로 작동되게 하고, 도어(12)의 도어프레임에 의해 브라켓(15)에 설치된 1차안전스위치 작동용 왕복레버(8)가 작동되게 구성한 것이다.FIG. 1 shows a door open / close detection device when opening a door, and FIG. 2 shows a door open / close detection device when closing a door. In particular, FIG. 3 shows a bracket and a fastener connected to the secondary safety, DOM, and monitor switch. As shown in the figure, the present invention provides an up / down door opening / closing detection device of a microwave oven, the door supporting and door closing of the door opening and closing the slider (1) of the door opening and closing device. The operating lever 1a for instructing rotational lever rotation is formed so that the operating piece 1a can be used to limit the rotation distance with a pair of snap pins 2b and 2c for fastening of the boss 2a of the bracket 2 and its periphery. Secondary safety (5) with a boss hole (4a) and a partitioned guide hole (4b) (4c) (4d) inserted into the stopper (2d) and fastened to the elastic spring (3) for restoring the original position of the bracket (2). , The swing hole 4e of the rotation lever 4 for operating the DOM 6 and the monitor switch 7 in the door opening and closing direction To, and is configured to be a primary safety switch operating reciprocating lever (8) is installed on bracket 15 by a door frame of the door 12 is operated.

상기 왕복레버(8)는 도어개폐시 도어(12)의 도어프레임에 접촉되어 작동되도록 구성된 것으로, 도어클로즈시 도어(12)와 접촉되는 조리실 전판(10)으로 왕복레버(8)를 도어오픈시에 1차안전스위치(11)의 접점돌기(11a)에 의해 돌출되도록 구성하였다.The reciprocating lever 8 is configured to be operated in contact with the door frame of the door 12 when the door is opened and closed, and when the reciprocating lever 8 is opened by the cooking chamber front plate 10 which is in contact with the door 12 when the door is closed. It was configured to protrude by the contact projection (11a) of the primary safety switch (11).

상기 구획된 가이드공(4b)(4c)(4d)은 한쌍의 스냅핀(2b)(2c)과 스토퍼(2d)에 각각 삽설되어 그 구획된 공간내에서만 작동되므로 회동레버(4)의 제동효과와 가이드효과가 더욱 향상되는 것이다.The partitioned guide holes 4b, 4c, and 4d are inserted into the pair of snap pins 2b and 2c and the stopper 2d, respectively, and operated only in the partitioned space, so that the braking effect of the rotation lever 4 And the guide effect is further improved.

상기 회동레버(4)에 의한 2차안전(5), D.O.M(6), 모니터스위치(7)의 작동과 왕복레버(8)에 의한 1차안전 스위치(11)의 작동은 모니터스위치(7)만 도어개폐시에 1차적으로 작동되게 하고, 상기 나머지 스위치(5)(6) 작동되게 할 수도 있고, 왕복레버(8)에 의해 2차안전, D.O.M 스위치를 작동되게 할 수도 있는 것이다.The operation of the secondary safety 5, the DOM 6, the monitor switch 7 by the rotation lever 4 and the operation of the primary safety switch 11 by the reciprocating lever 8 are performed by the monitor switch 7. Only when the door is opened or closed, the primary switch may be operated, and the remaining switches 5 and 6 may be operated, and the secondary safety and DOM switches may be operated by the reciprocating lever 8.

제3도를 통해 회동레버와 그 브라켓에 대해 작용을 곁들여 자세히 설명하면 다음과 같다.Referring to Figure 3 with the action of the rotation lever and its bracket in detail as follows.

회동구(4e)가 있는 회동레버(4)의 보스공(4a)은 브라켓(2)의 보스(2a)에 (4b) (4c) (4d)은 한쌍의 스냅핀(2b)(2c)과 스토퍼(2d)에 각각 체결하여 도어개폐에 따라 그 도어개폐방향으로 작동하는 슬라이더(1)의 작동편(1a)에 의해 회동레버(4)의 회동구(4e)도 도어개폐방향으로 작동하면서 회동레버(4)가 2차안전(5), D.O.M(6), 모니터스위치(7)를 온/오프시키는 것이다.The boss hole 4a of the pivot lever 4 with the pivoting hole 4e is connected to the boss 2a of the bracket 2, and 4b, 4c and 4d are paired with a pair of snap pins 2b and 2c. The rotational opening 4e of the rotation lever 4 also rotates while operating in the door opening and closing direction by the operating piece 1a of the slider 1 which is fastened to the stopper 2d and operates in the door opening and closing direction according to the door opening and closing. The lever 4 turns on / off the secondary safety 5, the DOM 6, and the monitor switch 7.

상기 회동레버(4)가 작동이 원활하면서도 스토퍼(2d)에 의한 회동거리내에서의 제동효과가 확실하도록 회동레버(4)와 그 브라켓(2)을 상기와 같은 구조로 하여 결합한 것이고, 또한 회동레버(4)가 도어개폐에 의한 슬라이더(1)의 힘을 직향으로 받을수 있도록 상기와 같이 도어개폐방향으로 작동되도록 구성한 것이다.The pivoting lever 4 combines the pivoting lever 4 and its bracket 2 with the same structure as described above so that the braking effect within the rotational distance by the stopper 2d is smooth while the operation is smooth. The lever 4 is configured to operate in the door opening and closing direction as described above to receive the force of the slider 1 by the door opening and closing in a straight line.

이상에서 기술한 본 발명의 기술구성에 따른 전체적인 작용을 도어오픈 상태의 제1도와 도어클로즈 상태의 제2도를 통하여 설명하면, 조리실 전판(10)으로 돌출되어 1차안전스위치(11)를 오프시킨 상태의 왕복레버(8)와 브라켓(2)의 보스(2a)와 한쌍의 스냅핀(2b)(2c) 그리고 스토퍼(2d)에 체결되어 2차안전스위치(5)와 D.O.M 스위치(6)를 오프, 모니터스위치(7)를 온시킨 상태의 회동레버(4)가 도어오픈 상태에서 도어클로즈 상태로 되면, 도어개폐장치의 슬라이더(1) 작동편(1a)이 브라켓(2)에 취부되어 있는 회동레버(4)의 회동구(4e)를 누름에 따라 원활하게 작동되는 회동레버(4)의 탄성스프링(3)이 인장되면서 순차적으로 도어오픈시 고주파의 발진을 차단시키는 모니터스위치(7)가 오프되고, 2차안전스위치(5)와 도어오픈시 조리동작을 중단시키는 D.O.M 스위치(6)가 온되며, 이후 도어(12)의 도어프레임이 조리실 전판(10)으로 돌출된 왕복레버(8)를 누름에 따라 1차안전스위치(11)가 온되어 정상적으로 전자레인지가 작동되는 것이다.Referring to the overall operation according to the technical configuration of the present invention described above through the first view of the door open state and the second view of the door closed state, it protrudes into the cooking chamber front plate 10 to turn off the primary safety switch 11 The secondary safety switch 5 and the DOM switch 6 are fastened to the boss 2a, the pair of snap pins 2b and 2c and the stopper 2d of the reciprocating lever 8 and the bracket 2 in the closed state. When the rotary lever 4 with the monitor switch 7 turned on to the door closed state from the door open state, the slider 1 operating piece 1a of the door open / close device is mounted on the bracket 2. Monitor switch 7 for blocking the oscillation of the high frequency when the door is opened in sequence while the elastic spring (3) of the rotation lever (4) that is smoothly operated by pressing the rotating hole (4e) of the rotating lever (4) Is turned off, the secondary safety switch (5) and the DOM switch (6) to stop the cooking operation when the door is opened And, subsequent to the first safety switch 11 according to the round trip lever (8) projecting in the cooking chamber door frame plate 10 of the door 12 to push the normally-on which the microwave oven operation.

그리고, 제1도에 도시한 바와 같이 상기처럼 회동레버(4)를 작동시키는 슬라이더(1)의 작동편(1a)은 또한 도어오픈시에 전장실 저판(14)에 취부되어 있는 브라켓(15)의 방진고무(13)가 부착된 스토퍼(15a)에 걸리면서 도어(12)를 지지하도록 하는 역할도 한다.Then, as shown in FIG. 1, the operating piece 1a of the slider 1 for operating the pivoting lever 4 as described above is also a bracket 15 which is mounted on the base plate 14 of the electric compartment at the door opening. It also serves to support the door 12 while being caught by the anti-vibration rubber 13 of the stopper 15a attached.

상술한 바와 같이 도어개폐장치의 슬라이더 작동편에 의해 작동되는 회동레버와 그 취부구조를 변경하고 회동레버의 회동방향을 도어개폐방향으로 하므로써 회동레버의 작동이 원활해지고, 또한 황복레버를 업소버가 아닌 도어프레임에 의해 작동되도록 구성하므로써 도어를 구성하는 도어스크린, 업소버, 도어프레임등의 형합구조가 변형되지 않아 고주파주설을 차단할 수 있는 효과가 있다.As described above, the rotation lever operated by the slider operating piece of the door opening and closing device and its mounting structure are changed, and the rotation lever is rotated in the door opening and closing direction, so that the operation of the rotation lever is smooth and the yellow lever is not an absorber. By configuring it to be operated by the door frame, the structure of the door screen, absorber, door frame, etc. constituting the door is not deformed, thereby preventing high frequency casting.

또한, 왕복레버를 1차안전스위치의 접점돌기의 복원력에 의해 복원되도록 구성하므로써 별도의 복원기구가 필요없이 생산성향상 및 원가절감의 효과가 있고, 접점돌기의 복원력이 뛰어나기 때문에 왕복레버의 복원력도 향상되는 이중효과가 있는 것이다.In addition, since the reciprocating lever is configured to be restored by the restoring force of the contact protrusion of the primary safety switch, there is no need for a separate restoring mechanism, thereby improving productivity and reducing costs, and the restoring force of the reciprocating lever is excellent because of the excellent restoring force of the contact protrusion. There is a dual effect that is improved.

Claims

In the up / down door opening / closing detection device of a microwave oven, an operating piece (1a) for rotating the door support and the rotating lever rotation door when opening the door is formed on the slider (1) of the door opening / closing device. A pair of snap pins (2b) (2c) for fastening of the boss (2a) of the bracket (2) and the circumference thereof and a stopper (2d) for limiting the rotation distance are inserted and elastic springs for restoring the original position of the bracket (3) The secondary hole (5) having the boss hole (4a) and the guide hole (4d) fastened to the rotating hole (4e) of the rotary lever (4) for operating the DOM (6), monitor switch (7) Up / down door opening and closing detection device of the microwave oven, characterized in that the door opening and closing direction, the door frame of the door 12 is configured to operate the reciprocating lever 8 for operating the primary safety switch (11). .

The up / down door opening and closing of the microwave oven according to claim 1, wherein the guide hole is partitioned so that guide holes 4b, 4c, and 4d respectively partitioned into a pair of snap pins and stoppers are inserted. Sensing device.

The microwave oven up / down door opening / closing detection device according to claim 1, wherein the reciprocating lever is configured to protrude toward the cooking chamber front plate by the contact loop (11a) of the primary safety switch.