JPH0119354Y2 - - Google Patents
Info
- Publication number
- JPH0119354Y2 JPH0119354Y2 JP5873484U JP5873484U JPH0119354Y2 JP H0119354 Y2 JPH0119354 Y2 JP H0119354Y2 JP 5873484 U JP5873484 U JP 5873484U JP 5873484 U JP5873484 U JP 5873484U JP H0119354 Y2 JPH0119354 Y2 JP H0119354Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- cylindrical body
- wall
- fixed
- stirrer
- 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.)
- Expired
Links
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 230000005684 electric field Effects 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は電子レンジに関し、特に電波撹拌用ス
ターラの取付構造に向けられている。[Detailed description of the invention] (a) Industrial application field The present invention relates to a microwave oven, and is particularly directed to a mounting structure for a stirrer for radio-wave stirring.
(ロ) 従来技術
第１図に、実開昭53−40557号公報にも開示さ
れている従来のスターラ取付構造をもつた電子レ
ンジを示す。ドア１を閉じることにより閉空間と
なるキヤビテイ２にマグネトロン３より電波が供
給され、この電波はキヤビテイ２の上壁２ａに装
備されたスターラ４により撹拌される。このスタ
ーラは風力回転型であり、その駆動風の経路は、
図中矢印で示す如く、ブロワー装置５により取り
込まれ、マグネトロン３を冷却した後、スターラ
４を回転させ上壁２ａのパンチング孔６を経て外
に抜けるものである。(b) Prior Art FIG. 1 shows a microwave oven with a conventional stirrer mounting structure, which is also disclosed in Japanese Utility Model Application No. 53-40557. Radio waves are supplied from a magnetron 3 to a cavity 2 which becomes a closed space by closing the door 1, and the radio waves are stirred by a stirrer 4 installed on the upper wall 2a of the cavity 2. This stirrer is a wind-driven type, and the path of the driving wind is:
As shown by the arrow in the figure, the liquid is taken in by the blower device 5, cools the magnetron 3, rotates the stirrer 4, and exits through the punched hole 6 in the upper wall 2a.
第２図に、上記スターラ４の取付構造の詳細を
示す。ポリプロピレン等からなる絶縁樹脂製のシ
ヤフト１０の頂部がキヤビテイ上壁２ａを貫通
し、ナツト１１で締結されることによりシヤフト
１０が上壁２ａより垂下固定されている。スター
ラ羽根１２の基部中央孔にカシメ固着された金属
円筒１３がシヤフト１０に遊嵌され、円筒１３と
シヤフト１０との間にはすべりの良いテフロン製
スペーサ１４，１５が介挿されている。テフロン
製ワツシヤ１６及びナツト１７が夫々シヤフト１
０下端より順次挿入及び螺入され、これらは円筒
１３の抜け落ちを防ぐ。従つて、スターラ羽根１
２は、風を受けると円筒１３と一体となりシヤフ
ト１０を軸として回転する。 FIG. 2 shows details of the mounting structure of the stirrer 4. The top of a shaft 10 made of an insulating resin made of polypropylene or the like passes through the cavity upper wall 2a, and is fastened with a nut 11 so that the shaft 10 is suspended and fixed from the upper wall 2a. A metal cylinder 13 which is caulked and fixed to the center hole of the base of the stirrer blade 12 is loosely fitted onto the shaft 10, and spacers 14 and 15 made of Teflon with good sliding are inserted between the cylinder 13 and the shaft 10. Teflon washers 16 and nuts 17 are attached to shaft 1, respectively.
They are sequentially inserted and screwed in from the lower end of the cylinder 13 to prevent the cylinder 13 from falling out. Therefore, stirrer blade 1
2 becomes integral with the cylinder 13 and rotates around the shaft 10 when exposed to wind.
然るに、上記構造では、上壁２ａと金属円筒１
３の上端との間にマイクロ波による電界が発生
し、斯る電界はシヤフト１０の上方内部を通る結
果、図中矢印Ａで示すシヤフト部分が加熱溶融
し、シヤフト１０がぐらつくといつた事態が発生
する。 However, in the above structure, the upper wall 2a and the metal cylinder 1
An electric field is generated by microwaves between the upper end of the shaft 10 and the upper end of the shaft 10, and as a result, the shaft portion shown by arrow A in the figure is heated and melted, causing the shaft 10 to wobble. Occur.
(ハ) 考案の目的
本考案は、上記の如き、マイクロ波電界により
シヤフト部分の溶融を防止せる構造を提供するも
のである。(c) Purpose of the invention The present invention provides a structure that can prevent the shaft portion from melting due to the microwave electric field as described above.
(ニ) 考案の構成
本考案の特徴は、キヤビテイ壁に固定された絶
縁樹脂製のシヤフトに金属筒体を遊嵌せしめると
共に、上記筒体に電波撹拌用スターラ羽根を取着
した電子レンジにおいて、上記シヤフトの、上記
キヤビテイ壁への固着付近で、かつ上記筒体より
露出せる部分の近傍に金属保護壁を設け、該保護
壁を上記キヤビテイ壁に固着すると共に、その先
端を上記筒体の先端に近接させた点にある。(d) Structure of the invention The features of the invention include a microwave oven in which a metal cylindrical body is loosely fitted to an insulating resin shaft fixed to a cavity wall, and a stirrer blade for radio stirring is attached to the cylindrical body. A metal protective wall is provided in the vicinity of the shaft where it is fixed to the cavity wall and in the vicinity of the portion exposed from the cylindrical body, the protective wall is fixed to the cavity wall, and its tip is connected to the tip of the cylindrical body. It is located at a point close to .
(ホ) 実施例
第３図に、本考案実施例として、本考案の特徴
部分のみを示し、第２図と同一部分には同一番号
が付されている。保護壁２０が本実施例の特徴と
なるもので、それは、ステンレス等の金属からな
り、第４図に展開して示す如く、中央孔２１を有
する基板２２より、その四方に延びる耳片２３ａ
〜２３ｄを、図中点線位置で折曲したものであ
る。保護壁２０は、その基板２２がシヤフト１０
と上壁２ａとの間に挿入されて挾持させ、耳片２
３ａ〜２３ｄが、シヤフト１０の、上壁への固着
付近で、かつ筒体１３より露出せる部分の近傍に
位置し、又各耳片の先端が筒体１３の上端に近接
している。(E) Embodiment FIG. 3 shows only the characteristic parts of the present invention as an embodiment of the present invention, and the same parts as in FIG. 2 are given the same numbers. The protective wall 20 is a feature of this embodiment, and is made of metal such as stainless steel.As shown in FIG.
~23d is bent at the dotted line position in the figure. The protective wall 20 has a substrate 22 that is attached to the shaft 10.
and the upper wall 2a to sandwich the ear piece 2.
3a to 23d are located near the portion of the shaft 10 that is fixed to the upper wall and exposed from the cylindrical body 13, and the tip of each ear piece is close to the upper end of the cylindrical body 13.
これにより、上壁２ａと筒体１３の上端との間
に生じようとする電界の多くは、保護壁の各耳片
２３ａ〜２３ｄの先端と筒体１３の上端との間に
生じ、よつてシヤフト１０の上方内部を通る電界
分布が少なくなり、このためシヤフト１０が加熱
溶融することがなくなる。 As a result, most of the electric field generated between the upper wall 2a and the upper end of the cylindrical body 13 is generated between the tips of the respective ears 23a to 23d of the protective wall and the upper end of the cylindrical body 13, and thus The electric field distribution passing through the upper interior of the shaft 10 is reduced, thereby preventing the shaft 10 from being heated and melted.
尚、保護壁２０を有底円筒状のものになして、
シヤフト１０の上記露出部を完全に包囲する形態
としてもよい。 In addition, the protective wall 20 is made into a cylindrical shape with a bottom,
The exposed portion of the shaft 10 may be completely surrounded.
(ヘ) 考案の効果
本考案によれば、絶縁樹脂シヤフトを回転軸と
する風力転型のスターラにおいて、シヤフトがマ
イクロ波電界により加熱溶融するといつたことが
なくなる。(f) Effects of the invention According to the invention, in a wind-rotated stirrer having an insulating resin shaft as its rotating shaft, when the shaft is heated and melted by a microwave electric field, there is no possibility of cracking.
第１図は従来例を示す断面図、第２図は同要部
断面図、第３図及び第４図は本考案実施例を示す
要部断面図及び要部展開平面図である。
１０…シヤフト、１３…筒体、２０…保護壁。
FIG. 1 is a sectional view showing a conventional example, FIG. 2 is a sectional view of the same main part, and FIGS. 3 and 4 are a sectional view and a developed plan view of the main part showing an embodiment of the present invention. 10... Shaft, 13... Cylindrical body, 20... Protection wall.
Claims (1)
トに金属筒体を遊嵌せしめると共に、上記筒体に
電波撹拌用スターラ羽根を取着した電子レンジに
おいて、上記シヤフトの、上記キヤビテイ壁への
固着付近で、かつ上記筒体より露出せる部分の近
傍に金属保護壁を設け、該保護壁を上記キヤビテ
イ壁に固着すると共に、その先端を上記筒体の先
端に近接させたことを特徴とする電子レンジ。 In a microwave oven in which a metal cylindrical body is loosely fitted to an insulating resin shaft fixed to a cavity wall, and a stirrer blade for radio stirring is attached to the cylindrical body, the shaft is fixed to the cavity wall in the vicinity of the A microwave oven characterized in that a metal protective wall is provided in the vicinity of the portion exposed from the cylindrical body, the protective wall is fixed to the cavity wall, and its tip is brought close to the tip of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5873484U JPS60170999U (en) | 1984-04-20 | 1984-04-20 | microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5873484U JPS60170999U (en) | 1984-04-20 | 1984-04-20 | microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60170999U JPS60170999U (en) | 1985-11-13 |
| JPH0119354Y2 true JPH0119354Y2 (en) | 1989-06-05 |
Family
ID=30584516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5873484U Granted JPS60170999U (en) | 1984-04-20 | 1984-04-20 | microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60170999U (en) |
-
1984
- 1984-04-20 JP JP5873484U patent/JPS60170999U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60170999U (en) | 1985-11-13 |
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