JPS62100978A - Radio frequency heater - Google Patents
Radio frequency heaterInfo
- Publication number
- JPS62100978A JPS62100978A JP24190385A JP24190385A JPS62100978A JP S62100978 A JPS62100978 A JP S62100978A JP 24190385 A JP24190385 A JP 24190385A JP 24190385 A JP24190385 A JP 24190385A JP S62100978 A JPS62100978 A JP S62100978A
- Authority
- JP
- Japan
- Prior art keywords
- operation panel
- decorative board
- board
- back plate
- static electricity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電子回路を搭載した高周波回路の誤動作や破壊
を防止するだめの高周波加熱装置の操作パネル部の構造
に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a structure of an operation panel portion of a high frequency heating device to prevent malfunction or destruction of a high frequency circuit equipped with an electronic circuit.
従来の技術
高周波加熱装置の一般的な外観斜視図第３図において装
置本体１の加熱室２の前面開口部にはドア３があり、ド
ア３の近傍には操作パネル４がある。操作パネル４には
時間表示部６や、操作キー類６や、ドア開成用ボタン７
等が゛ある。第４図は前記操作パネル４部の構成を示す
分解斜視図である。前記操作パネル４の裏面には押し操
作の際に前記操作パネル４の補強用として設けられたバ
ック板８が塩９付けられその後に電子回路基板９が取シ
付けられている。なお、前記バック板８は本体のシャー
シにビス締めで接続され、アースされている前記電子回
路基板９上には各種電子部品１０やマイコン１１、また
時間等を表示する表示管１２が取シ付けられている。一
方、前記操作パネル４０表面には、調理機能や時間ある
いは調理メニュー等を表示した化粧板１３が貼り付けら
れている。第５図（ａ） 、 （１））は前記化粧板の
正面図と縦断面図とを示したものである。表面にはポリ
エステル１６があり、その次には文字や色を示すカラ一
部１６、そして、接着剤１７を介して前記操作パネル内
への静電気やノイズの侵入を防ぐためにアルミ箔１８が
貼り付けられ、その後には接着剤１７を介して裏面のポ
リエステル１６が貼り付けられ、一枚の化粧板として構
成されている。そして、裏面のポリエステル１６に取り
付けられた両面テープ１９によって前記操作パネル４に
貼り付けられていた。このようにして前記化粧板１３に
アルミ箔１８をはさみこんで電気的にシールド効果を持
たせ、前記操作パネル４内の電子回路基板上の電子部品
やマイコンを静電気による破壊やノイズによる誤動作か
ら守ろうとしていた。（電子材料、第１６巻、第９号、
９月、１９７７（東京）高詰雅入「家庭電器へのマイコ
ン導入、導入例１゜電子レンジＪＰ５９．−６０参照）
発明が解決しようとする問題点
ところが、表示管の文字や数字を見せるために化粧板１
３には透明部１４が必要になってくる。In FIG. 3, a general external perspective view of a conventional high-frequency heating device, there is a door 3 at the front opening of the heating chamber 2 of the main body 1 of the device, and an operation panel 4 near the door 3. The operation panel 4 includes a time display section 6, operation keys 6, and a door opening button 7.
There are such things. FIG. 4 is an exploded perspective view showing the structure of the operation panel 4 section. A back plate 8 provided for reinforcing the operation panel 4 during push operation is attached to the back surface of the operation panel 4 with a salt 9 attached thereto, and an electronic circuit board 9 is attached thereto. The back plate 8 is connected to the chassis of the main body with screws, and various electronic components 10, a microcomputer 11, and a display tube 12 for displaying time, etc. are mounted on the grounded electronic circuit board 9. It is being On the other hand, a decorative board 13 on which cooking functions, times, cooking menus, etc. are displayed is pasted on the surface of the operation panel 40. FIGS. 5(a) and 5(1)) show a front view and a longitudinal sectional view of the decorative board. There is polyester 16 on the surface, followed by a color part 16 showing letters and colors, and aluminum foil 18 pasted through adhesive 17 to prevent static electricity and noise from entering into the operation panel. After that, the polyester 16 on the back side is attached via an adhesive 17 to form a single decorative board. Then, it was attached to the operation panel 4 with a double-sided tape 19 attached to the polyester 16 on the back side. In this way, the aluminum foil 18 is sandwiched between the decorative board 13 to provide an electrical shielding effect, thereby protecting the electronic components and microcontrollers on the electronic circuit board in the operation panel 4 from damage caused by static electricity and malfunctions caused by noise. I was about to. (Electronic Materials, Volume 16, No. 9,
September, 1977 (Tokyo) Masanori Takatsume ``Introduction of microcomputers to home appliances, introduction example 1゜Refer to Microwave Oven JP 59.-60) Problems that the invention seeks to solveHowever, in order to show the letters and numbers on the display tube. decorative board 1
3 requires a transparent portion 14.
そのために前記透明部１４の枠内には前記アルミ箔１８
をはさみ込むことができなかった。しかも前記アルミ箔
１８は本体シャーシとは電気的に接続されていないため
に、一度は前記アルミ箔１８へ飛んだ静電気も逃げ場を
失なってしまう。そして、最終的には第６図に示すよう
に、静電気やノイズが化粧板１３内に侵入して逃げ場を
失ない、距離が近い表示管１２の足部へ侵入するケース
があり、電子回路基板ｅ上に配置されている表示管を駆
動するマイコン１１や各種電子部品１０を破壊すること
があった。また、第７図に示すように電気的に本体シャ
ーシと接続され、アースされているバック板８の上端を
伸ばしても、距離が非常に近いために、静電気がバック
板８から表示管１２の足へ飛ぶことがあった。また、思
いどおりに前記バック板８に前記静電気が飛んだとして
も、アース点まで前記バック板８に電流が流れるために
ノイズとなって前記表示管１２やマイコン１１が誤動作
するという問題点があった。このために、化粧板１３に
侵入した静電気を透明部１４以外の場所で、できるだけ
前記表示管１２やマイコン１１から離れた所で確実に前
記バック板８へ飛ばしてアース点までの電流経路をでき
るだけ短くして、ノイズに弱い電子部品やマイコン等か
ら前記電流経路を離れた所に設けることが必要となって
いたう
本発明はこのような従来の問題点を解消するものであり
、簡単な構成で電子回路部への静電気褥入を防ぐことが
でき、前記電子回路の破壊や誤動作のない極めて信頼性
の高い機器を提供するものである。For this purpose, the aluminum foil 18 is provided within the frame of the transparent part 14.
I couldn't squeeze it in. Moreover, since the aluminum foil 18 is not electrically connected to the main body chassis, the static electricity that once flew to the aluminum foil 18 has no place to escape. Finally, as shown in FIG. 6, there are cases where static electricity and noise enter the decorative board 13 and have no escape, and enter the foot of the display tube 12 which is close to the electronic circuit board. In some cases, the microcomputer 11 that drives the display tube and various electronic components 10 disposed on the display panel were destroyed. Furthermore, even if the upper end of the back plate 8, which is electrically connected to the main body chassis and grounded, is extended as shown in FIG. Sometimes it flew to my feet. Further, even if the static electricity flies to the back plate 8 as expected, there is a problem in that the current flows through the back plate 8 to the ground point, causing noise and causing the display tube 12 and microcomputer 11 to malfunction. Ta. For this purpose, the static electricity that has entered the decorative panel 13 is reliably blown away to the back panel 8 at a location other than the transparent portion 14 and as far away from the display tube 12 and microcomputer 11 as possible, and the current path to the ground point is made as far as possible. The present invention solves these conventional problems in that it is necessary to shorten the current path and provide it at a location away from noise-sensitive electronic components, microcontrollers, etc., and has a simple configuration. Therefore, it is possible to prevent static electricity from entering the electronic circuit section, and to provide an extremely reliable device that does not cause destruction or malfunction of the electronic circuit.
問題点を解決するだめの手段
本発明の高周波加熱装置は、バック板の一部を操作パネ
ルに設けられた貫通穴へ差し込み、前記バック板と前記
化粧板との距離が接触することなく、なおかつ他の電子
部品より近くなるようにしたものである。Means for Solving the Problems The high-frequency heating device of the present invention is such that a part of the back plate is inserted into a through hole provided in the operation panel, and the distance between the back plate and the decorative plate is such that they do not come into contact with each other. It is designed to be closer to other electronic components.
作用
本発明の高周波加熱装置は、化粧板とバック板の一部と
の距離を化粧板と他の電子部品の距離より近くすること
によって、化粧板に侵入した静電気は確実にバック板の
ある特定の場所に飛ばされ、アースされるために、静電
気によるマイコンや電子部品の破壊、あるいはバック板
に電流が流れることによるノイズの誤動作も電流経路が
決まっているので、部品配置を工夫することで未然に防
ぐことができるものである。Function: The high-frequency heating device of the present invention makes the distance between the decorative board and a part of the back board closer than the distance between the decorative board and other electronic components, thereby ensuring that static electricity that has entered the decorative board is directed to a certain part of the back board. Since the current path is determined, the destruction of microcontrollers and electronic components due to static electricity, or noise malfunctions caused by current flowing through the back board, can be prevented by carefully arranging the parts. This is something that can be prevented.
実施例
以下、本発明の一実施例を図面を参照して説明する。第
１図は操作パネル部の構成を示す分解斜視図である。操
作パネル４０表面には従来と同様にアルミ箔をはさみこ
んだ化粧板１３が貼り付けられる。前記操作パネル裏面
には、バック板８を取り付ける。このとき前記バック板
８の切起し２ｏを前記操作パネルに設けられた貫通穴２
１に差し込む。そのあと電子回路基板９が取り付けられ
る。なお前記バック板８は前記操作パネル４の本体取付
時に本体シャーシにビス締めされ、アースされる。以上
のように、従来と全く変わらない部品構成で問題点が解
決されている。第２図は第１図におけるＡ −Ａ／面の
縦断面図である。バック板８の切起し２０が操作パネル
４の貫通穴２１を通って他の導電性のある部品に比べて
、化粧板１３と近い距離Ｂ〉人におかれているので、前
記化粧板１３に侵入した静電気は、前記バック板８の切
起し２０へ飛び、バック板８を介して本体シャーシヘア
ースされる。以上のように静電気が化粧板１３に侵入し
たとしても必ずバック板８の切起し２０へ飛び、本体シ
ャーシヘアースされるので、電子回路基板９上のマイコ
／１１や各種電子部品１０が破壊されることがなくなる
。また、静電気は必ず前記バック板８の切起し２０に飛
ぶので、アースまでの電流経路は自然と決まってくる。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing the configuration of the operation panel section. A decorative board 13 sandwiching aluminum foil is pasted on the surface of the operation panel 40, as in the conventional case. A back plate 8 is attached to the back surface of the operation panel. At this time, the cut and raised portion 2o of the back plate 8 is inserted into the through hole 2 provided in the operation panel.
Insert it into 1. The electronic circuit board 9 is then attached. The back plate 8 is screwed to the main body chassis and grounded when the operation panel 4 is attached to the main body. As described above, the problem has been solved with a component configuration that is completely unchanged from the conventional one. FIG. 2 is a longitudinal sectional view taken along the plane A-A in FIG. 1. Since the cut-out 20 of the back plate 8 passes through the through hole 21 of the operation panel 4 and is placed close to the decorative board 13 compared to other conductive parts, the decorative board 13 The static electricity that has entered the back plate 8 flies to the cut-and-raised part 20 of the back plate 8, and is grounded to the main body chassis via the back plate 8. As described above, even if static electricity invades the decorative board 13, it will always fly to the cut-out 20 of the back board 8 and be grounded to the main body chassis, destroying the microphone/11 on the electronic circuit board 9 and various electronic components 10. You will no longer be exposed to it. Further, since static electricity always flies to the cut-and-raised portion 20 of the back plate 8, the current path to the ground is naturally determined.
このため、あらかじめノイズに弱いマイコンや電子部品
は離れた位置に配置することができるので、ノイズによ
る誤動作も未然に防ぐことができることになる。また、
前記バック板８と化粧板１３にはさみ込まれたアルミ箔
が、違う材質のものであるときには、バック板８の切起
し２ｏの先端と化粧板８との間に隙間（第２図中０くＡ
）を設けることによって、異種金属間の電融作用を防ぐ
ことができ、腐食による静電気の経路がしゃ断されると
いっだことがなくなるものである。Therefore, since the microcomputer and electronic components that are sensitive to noise can be placed at a remote location, it is possible to prevent malfunctions due to noise. Also,
When the aluminum foils sandwiched between the back plate 8 and the decorative plate 13 are made of different materials, there is a gap (0 in FIG. A
), it is possible to prevent electrofusion between dissimilar metals, and if the path of static electricity caused by corrosion is cut off, the problem will not occur.
なお、バック板８が電気的にアースされる７本体シャー
シとのビス締めの位置は、前記バック板８の切起し２０
にできるだけ近くすることが望ましい。The position where the screws are tightened between the back plate 8 and the chassis 7, which is electrically grounded, is at the cut-out 20 of the back plate 8.
It is desirable to be as close as possible to
発明の効果
以上のように本発明の高周波加熱装置は次の効果を得る
ことができる。Effects of the Invention As described above, the high frequency heating device of the present invention can obtain the following effects.
（１）化粧板に侵入した静電気をバック板を介して本体
シャーシにアースできるので、マイコン等の電気部品を
静電気による破壊から守ることができる。また、バック
板上を流れる電流経路が明確に決まるので、電子回路基
板上の電子部品の配置を変えることによって、ノイズに
よる誤動作を未然に防ぐことができる。(1) Since static electricity that has entered the decorative board can be grounded to the main body chassis via the back board, electrical components such as a microcomputer can be protected from destruction due to static electricity. Furthermore, since the current path flowing on the back board is clearly determined, malfunctions due to noise can be prevented by changing the arrangement of electronic components on the electronic circuit board.
（２）従来より使用している部品の一部を変更するだけ
でよいので、新しい部品を追加するとか、従来部品が大
きくなったり、複雑になったりすることがなく、非常に
簡単で安価であり、しかも、組立性、サービス性ととも
に量産性の高い機器となる。(2) Since it is only necessary to change some of the parts that have been used in the past, there is no need to add new parts or make existing parts larger or more complex, making it extremely simple and inexpensive. Moreover, it is a device that is easy to assemble, service, and mass-produced.
（３）化粧板とバック板の切起しとは接触せずに隙間が
おいているので、化粧板にはさみ込まれているアルミ箔
等の導電性材料とバック板の材質が違っていても、異種
金属間の電融作用といったものがなく、腐食による静電
気経路のしゃ断を未然に防ぐことができ、長期間信頼性
の高い機器として使用することができる。(3) There is a gap between the decorative board and the cut edges of the back board, so even if the conductive material such as aluminum foil sandwiched between the decorative board and the material of the back board are different. , there is no electrofusion effect between dissimilar metals, it is possible to prevent the electrostatic path from being interrupted by corrosion, and it can be used as a highly reliable device for a long period of time.
第１図は本発明の一実施例における高周波加熱装置の操
作パネルの構造を示す分解斜視図、第２図は第１図の人
−人′線の縦断面図、第３図は一般的な高周波加熱装置
の外観斜視図、第４図は従来の操作パネル部の分解斜視
図、第６図（ａ） 、 （ｔ））は化粧板の正面図と縦
断面図、第６図と第７図はそれぞれ従来の操作パネルの
縦断面図である。
４・・・・・・操作パネル、８・・・・・・バック板、
９・・・・・・電子回路基板、１０・・・・・・各種電
子部品、１１・・・・・・マイコン、１２・・・・・・
表示管、１３・・・・・・化粧板、１４・・・・・・透
明部、１６・・・・・・ポリエステル、１６・・・・・
・カラ一部、１７・・・・・・接着剤、１８・・・・・
・アルミ箔、１９・・・・・・両面テープ、２ｏ・・・
・・・切起し、２１・・・・・・貫通穴。
第２図
第３図
第４図
第５図
（ｂ ｆｂ ブｑ
第 ６ 図
第７図FIG. 1 is an exploded perspective view showing the structure of the operation panel of a high-frequency heating device according to an embodiment of the present invention, FIG. Fig. 4 is an exploded perspective view of the conventional operation panel section, Fig. 6(a) and (t)) are a front view and longitudinal cross-sectional view of the decorative board, and Fig. 6 and 7 are external perspective views of the high-frequency heating device. Each figure is a longitudinal sectional view of a conventional operation panel. 4...Operation panel, 8...Back board,
9...Electronic circuit board, 10...Various electronic components, 11...Microcomputer, 12...
Display tube, 13... Decorative board, 14... Transparent part, 16... Polyester, 16...
・Part of the empty part, 17...Adhesive, 18...
・Aluminum foil, 19...Double-sided tape, 2o...
... cut and raised, 21 ... through hole. Figure 2 Figure 3 Figure 4 Figure 5 (b fb q Figure 6 Figure 7
Claims (1)
内部に取り付けられた電子回路基板と、その電子回路と
操作パネルの間に設けた金属性板金構成のバック板と、
前記操作パネルに貼り付けられた化粧板とを備え、前記
化粧板内面に導電性物質をはさみ込み、なおかつ前記バ
ック板の一部が前記操作パネルの貫通穴を通り、前記化
粧板に近接する構成とした高周波加熱装置。An operation panel having various operation parts, an electronic circuit board attached to the inside of the operation panel, and a back plate composed of a metallic sheet metal provided between the electronic circuit and the operation panel,
a decorative board affixed to the operation panel, a conductive material is sandwiched on the inner surface of the decorative board, and a part of the back board passes through a through hole in the operation panel and is close to the decorative board. High frequency heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24190385A JPS62100978A (en) | 1985-10-29 | 1985-10-29 | Radio frequency heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24190385A JPS62100978A (en) | 1985-10-29 | 1985-10-29 | Radio frequency heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62100978A true JPS62100978A (en) | 1987-05-11 |
| JPH0535559B2 JPH0535559B2 (en) | 1993-05-26 |
Family
ID=17081267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24190385A Granted JPS62100978A (en) | 1985-10-29 | 1985-10-29 | Radio frequency heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62100978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03182096A (en) * | 1989-12-12 | 1991-08-08 | Fujitsu Ltd | Shield plate fitting structure of operator panel unit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5275784B2 (en) * | 2008-12-24 | 2013-08-28 | ホシザキ電機株式会社 | Electromagnetic induction heating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221988A (en) * | 1983-05-31 | 1984-12-13 | 松下電器産業株式会社 | High frequency heater |
| JPS6035421A (en) * | 1984-06-07 | 1985-02-23 | 松下電器産業株式会社 | Heating cooking device |
-
1985
- 1985-10-29 JP JP24190385A patent/JPS62100978A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221988A (en) * | 1983-05-31 | 1984-12-13 | 松下電器産業株式会社 | High frequency heater |
| JPS6035421A (en) * | 1984-06-07 | 1985-02-23 | 松下電器産業株式会社 | Heating cooking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03182096A (en) * | 1989-12-12 | 1991-08-08 | Fujitsu Ltd | Shield plate fitting structure of operator panel unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0535559B2 (en) | 1993-05-26 |
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