JPH0710162Y2 - Mounting structure for heating chamber and flat plate heater - Google Patents
Mounting structure for heating chamber and flat plate heaterInfo
- Publication number
- JPH0710162Y2 JPH0710162Y2 JP11120887U JP11120887U JPH0710162Y2 JP H0710162 Y2 JPH0710162 Y2 JP H0710162Y2 JP 11120887 U JP11120887 U JP 11120887U JP 11120887 U JP11120887 U JP 11120887U JP H0710162 Y2 JPH0710162 Y2 JP H0710162Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating chamber
- plate
- flat plate
- plate heater
- mounting
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 （イ）産業上の利用分野 この考案は加熱室と平板ヒータとの取付構造に関し、更
に詳しくは、機器本体内に設けられた加熱室と、この加
熱室を構成する構成板の外面に取付けられる平板ヒータ
との取付構造であって、特に電子レンジに好適に用いら
れる取付構造に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a mounting structure of a heating chamber and a flat plate heater, and more specifically, a heating chamber provided in a device body and the heating chamber. The present invention relates to a mounting structure with a flat plate heater mounted on the outer surface of a component plate, and particularly to a mounting structure suitable for use in a microwave oven.
（ロ）従来の技術 機器本体内に加熱室を形成し、その加熱室に高周波を供
給する高周波供給手段を備え、加えて加熱室の天板の上
に平板ヒータを、その平板ヒータの上に断熱材を、更に
その断熱材の上に電装部品の設置板をそれぞれ配設して
なるレンジでは、従来第４〜５図に示すように、電装部
品の設置板9aはその外周部で平板ヒータ3a（加熱室の天
板7aの上に配設された板状発熱部5aと、発熱部5aの上に
配設された取付け用基板6aとからなる）と共に加熱室の
天板7aに共締めされていた。なお、第５図において8a
は、電装部品の設置板9aと平板ヒータ3aの取付け用基板
6aとの間に配設された断熱材を示す。(B) Conventional technology A heating chamber is formed in the main body of the device, and a high-frequency supply means for supplying a high frequency to the heating chamber is provided. In addition, a flat plate heater is provided on the top plate of the heating chamber In a range in which a heat insulating material is further arranged on top of the heat insulating material, installation plates for electrical components are arranged on the outer periphery of the installation plate 9a for electrical components, as shown in FIGS. 3a (composed of a plate-shaped heat generating part 5a arranged on the top plate 7a of the heating chamber and a mounting substrate 6a arranged on the heat generating part 5a) together with the top plate 7a of the heating chamber It had been. In addition, in FIG.
Is a board for mounting the electrical component installation plate 9a and the flat plate heater 3a.
The heat insulating material arrange | positioned between 6a is shown.
（ハ）考案が解決しようとする問題点 しかし、平板ヒータ3aの取付け用基板6aにプレス加工時
の残留応力がある場合や平板ヒータ3aの発熱時に基板6a
が熱膨脹して変形を起す場合には、平板ヒータ3aと加熱
室天板7aとの密着性が悪くなり平板ヒータ3aからの熱が
効率よく加熱室内に伝わらないという問題があった。(C) Problems to be solved by the invention However, when the mounting substrate 6a of the flat plate heater 3a has residual stress during press working or when the flat plate heater 3a generates heat, the substrate 6a
However, if the heat expands and deforms, the adhesion between the flat plate heater 3a and the heating chamber top plate 7a deteriorates, and the heat from the flat plate heater 3a is not efficiently transmitted to the heating chamber.
特に、加熱室は平面形状が方形であることより平板ヒー
タ3aも方形で、しかも他の部品の配設との関係より加熱
室の方形天板7aにおける三辺の外周部で電装部品の設置
板9aと平板ヒータ3aとが共締めされ残りの一辺の外周部
は開いたままであり、上記の密着性の問題は深刻であっ
た。In particular, since the heating chamber has a rectangular planar shape, the flat plate heater 3a has a rectangular shape, and due to the relationship with the arrangement of other components, the installation plate for the electrical components is provided on the outer peripheral portion of the three sides of the rectangular top plate 7a of the heating chamber. 9a and the flat plate heater 3a were tightened together, and the outer peripheral portion of the remaining one side was left open, and the above-mentioned problem of adhesion was serious.
この考案は上記の事情に鑑みてなされたものであり、加
熱室を構成する構成板（たとえば加熱室天板）の外面に
取り付けられる平板ヒータの取付け用基板にプレス加工
時の残留応力があっても平板ヒータが発熱中であっても
平板ヒータと加熱室を構成する構成板との密着性がよ
く、従って平板ヒータから加熱室内への熱の伝導性が損
なわれることのない加熱室と平板ヒータとの取付構造を
提供するものである。The present invention has been made in view of the above circumstances, and there is a residual stress at the time of press working on the mounting substrate of the flat plate heater mounted on the outer surface of the component plate (for example, the heating chamber top plate) that constitutes the heating chamber. Also, even when the flat plate heater is generating heat, the flat plate heater and the constituent plates constituting the heating chamber have good adhesion, and therefore the heat conduction from the flat plate heater to the heating chamber is not impaired and the flat plate heater. It is intended to provide a mounting structure with.
（ニ）問題点を解決するための手段 この考案は、機器本体内に設けられた加熱室と、この加
熱室を構成する構成板の外面に取付けられる平板ヒータ
との取付構造であって、前記構成板の外面に板状発熱部
とその取付け用基板とからなる平板ヒータを発熱部が構
成板側に位置するように配設し、この平板ヒータの取付
け用基板のうちの発熱部側とは反対側の面に板状断熱材
を配設し、更にこの断熱材のうちの前記取付け用基板側
とは反対側の面に断熱材を前記取付け用基板に沿わせて
保持するための保持板を配設し、この保持板と前記取付
け用基板とをそれぞれの外周部において前記構成板の外
面に共締めし、保持板に、その一部が打ち抜かれて前記
取付け用基板側へ折り曲げられかつ前記断熱材を貫通し
て先端でその取付け用基板に当接しそれによってその取
付け用基板を介して前記発熱部を前記構成板の外面に押
圧し得る打抜き舌片を形設してなる加熱室と平板ヒータ
との取付構造である。(D) Means for Solving the Problems The present invention relates to a mounting structure of a heating chamber provided in a main body of a device and a flat plate heater mounted on an outer surface of a component plate forming the heating chamber. A flat plate heater including a plate-shaped heat generating portion and a mounting substrate for the plate is disposed on the outer surface of the component plate so that the heat generating portion is located on the component plate side. A plate-shaped heat insulating material is arranged on the surface on the opposite side, and a holding plate for holding the heat insulating material along the mounting board on the surface of the heat insulating material on the side opposite to the mounting board side. And the holding plate and the mounting substrate are fastened together at their outer peripheral portions to the outer surface of the component plate, and the holding plate is partially punched and bent to the mounting substrate side, and Penetrate through the insulation and abut the mounting substrate at its tip. This is a mounting structure of a heating chamber and a flat plate heater, in which a punching tongue that can press the heat generating portion against the outer surface of the component plate is formed through the mounting substrate.
（ホ）作用 平板ヒータの取付け用基板は打抜き舌片の先端により加
熱室側へ押圧される。すると、取付け用基板は平板ヒー
タの発熱部を加熱室の構成板の外面に密着させる。これ
により、平板ヒータの発熱部からの熱は加熱室へ効率よ
く伝導される。(E) Action The plate heater mounting substrate is pressed toward the heating chamber by the tip of the punched tongue. Then, the mounting substrate brings the heat generating portion of the flat plate heater into close contact with the outer surface of the constituent plate of the heating chamber. Thereby, the heat from the heat generating portion of the flat plate heater is efficiently conducted to the heating chamber.
（ヘ）実施例 この考案を、第１〜３図に示す実施例に基づき詳述す
る。しかし、これによってこの考案が限定されるもので
はない。(F) Embodiment This invention will be described in detail based on the embodiment shown in FIGS. However, this does not limit the present invention.
電子レンジＲは第１図に示すように、機器本体１内に加
熱室２が形成され、加熱手段として高周波供給手段と平
板ヒータ３とが備えられている。４は、高周波供給手段
を構成する導波管である。As shown in FIG. 1, the microwave oven R has a heating chamber 2 formed in the main body 1 of the device, and a high-frequency supply means and a flat plate heater 3 as heating means. Reference numeral 4 is a waveguide forming a high frequency supply means.
平板ヒータ３は、軟質マイカ板にニクロム線を巻いてな
る発熱部５が板金からなる取付け用基板６に取付けられ
て構成されている。平板ヒータ３は加熱室２を構成する
構成板の一部としての加熱室天板７上に配設され、平板
ヒータ３上に断熱材８を介して、断熱材８を取付け用基
板６に沿わせて保持するための保持板としての電装部品
の設置板９が配設されている。The flat-plate heater 3 is configured such that a heat generating portion 5 formed by winding a nichrome wire around a soft mica plate is attached to a mounting substrate 6 made of sheet metal. The flat plate heater 3 is disposed on the heating chamber top plate 7 as a part of the constituent plates of the heating chamber 2, and the heat insulating material 8 is mounted on the flat plate heater 3 via the heat insulating material 8 along the mounting substrate 6. An installation plate 9 for electrical components is provided as a holding plate for holding the electric components together.
平板ヒータ３の基板６及び電装部品の設置板９は共にほ
ぼ方形状であり、前部を除く三辺の外周部にそれぞれビ
ス通孔10及び11が設けられ、基板６と電装部品の設置板
９はビス12によって加熱室天板７に共締めされている。
13は、基板６と電装部品の設置板９との距離を一定に保
つスペーサである。電装部品の設置板９には、断熱材８
を貫通して４つの打抜き舌片14・……14が設けられてい
る。すなわち、これらの打抜き舌片14・……14は、電装
部品の設置板９の一部が４箇所で垂下状に打抜かれて形
設されたものである。各打抜き舌片14の下端（先端）は
平板ヒータ３の取付け用基板６の上面に強く当接してい
る。そして、各打抜き舌片14は、取付け用基板６を介し
て発熱部３を加熱室２の天板７の上面に押圧している。
なお、第２図および第３図において、18・……18は断熱
材８に設けられた垂直な４つの貫通孔を表す。これら４
つの貫通孔18・……18は４つの打抜き舌片14・……14の
ためのものであり、互いに同形（いずれも平面形状が長
方形）・同大である。このように設けられた４つの打抜
き舌片14・……14は、平板ヒータ３の取付け用基板６に
プレス加工時の残留応力がある場合や、平板ヒータ３の
発熱部５の発熱時に取付け用基板６が熱膨張により変形
しようとする場合に、残留応力に起因してゆがみの発生
した取付け用基板６や熱膨張により変形しようとする取
付け用基板６を加熱室２の天板７の方向へ押圧し、平板
ヒータ３の発熱部５を天板７の上面に密着させる機能を
有している。Both the substrate 6 of the flat plate heater 3 and the installation plate 9 of the electrical components are substantially rectangular, and screw holes 10 and 11 are provided on the outer peripheral portions of the three sides except the front portion, respectively. The screws 9 are fastened together with the heating chamber top plate 7 by screws 12.
Reference numeral 13 is a spacer that keeps the distance between the substrate 6 and the installation plate 9 of the electrical component constant. A heat insulating material 8 is provided on the installation plate 9 for the electrical component.
There are four punched tongues 14 ... That is, these punching tongues 14 ... 14 are formed by punching a part of the installation plate 9 for electrical components in a drooping manner at four locations. The lower end (tip) of each punched tongue piece 14 is in strong contact with the upper surface of the mounting substrate 6 of the flat plate heater 3. Then, each punching tongue 14 presses the heat generating portion 3 against the upper surface of the top plate 7 of the heating chamber 2 via the mounting substrate 6.
In FIGS. 2 and 3, 18 ... 18 represent four vertical through holes provided in the heat insulating material 8. These 4
The four through holes 18 ... 18 are for four punched tongues 14 ... 14 and have the same shape (both are rectangular in plan view) and the same size. The four punched tongues 14 ... 14 provided in this way are for mounting when the mounting substrate 6 of the flat plate heater 3 has residual stress during press working or when the heat generating portion 5 of the flat plate heater 3 generates heat. When the substrate 6 is about to be deformed by thermal expansion, the mounting substrate 6 that is distorted due to residual stress and the mounting substrate 6 about to be deformed by thermal expansion are moved toward the top plate 7 of the heating chamber 2. It has a function of pressing and bringing the heat generating portion 5 of the flat plate heater 3 into close contact with the upper surface of the top plate 7.
なお、15及び16はそれぞれ電装部品である高圧トランス
及び冷却ファンである。又、17は導波管用の通孔であ
る。Reference numerals 15 and 16 are a high-voltage transformer and a cooling fan, which are electrical components. Reference numeral 17 is a through hole for the waveguide.
この考案の電子レンジＲにおける加熱室２と平板ヒータ
３との取付構造は、上述した通りに構成されている。従
って、平板ヒータ３の取付け用基板６にプレス加工時の
残留応力があったり、平板ヒータ３の発熱時（作動時）
に基板６が熱膨脹して変形しようとしても、取付け用基
板６と電装部品の設置板９とは、６つのスペーサ13・…
…13により互いに所定間隔を保った状態で、発熱部３を
介してそれぞれの外周部において加熱室２の天板７に共
締めされている。そして、取付け用基板６は、４つの打
抜き舌片14・……14の下端が取付け用基板６に強く当接
することにより加熱室２の天板７の方向へ押圧され、そ
の結果、発熱部３を天板７の上面に密着させている。こ
れにより、平板ヒータ３の発熱部５からの熱は加熱室２
へ効率よく伝導される。加熱室２内の被加熱物（図示省
略）は、天板７より効率よく熱を供給されて調理され
る。The mounting structure of the heating chamber 2 and the flat plate heater 3 in the microwave oven R of the present invention is configured as described above. Therefore, when the mounting substrate 6 of the flat plate heater 3 has residual stress during press working, or when the flat plate heater 3 generates heat (during operation).
Even when the substrate 6 is thermally expanded and deforms, the mounting substrate 6 and the electrical component installation plate 9 are separated by the six spacers 13 ...
13 are fastened together with the top plate 7 of the heating chamber 2 at their outer peripheral portions via the heat generating portion 3 while maintaining a predetermined distance from each other. The mounting board 6 is pressed toward the top plate 7 of the heating chamber 2 when the lower ends of the four punched tongues 14 ... Is closely attached to the upper surface of the top plate 7. As a result, the heat from the heat generating portion 5 of the flat plate heater 3 is applied to the heating chamber 2
Is efficiently transmitted to. An object to be heated (not shown) in the heating chamber 2 is efficiently supplied with heat from the top plate 7 and cooked.
なお、打抜き舌片14は、電装部品の設置板９が冷却ファ
ン16で冷却されていることより熱による変形は極めて小
さい。又、電装部品の設置板９の板厚を大きくとること
により、熱にる変形を更に小さくすることができる。Note that the punched tongue 14 is extremely small in deformation due to heat because the installation plate 9 for electrical components is cooled by the cooling fan 16. Further, by increasing the plate thickness of the installation plate 9 for the electrical component, the deformation due to heat can be further reduced.
（ト）考案の効果 この考案によれば、断熱材を平板ヒータの取付け用基板
に沿わせて保持するための保持板に打抜き舌片を設け、
その打抜き舌片の先端で、平板ヒータの取付け用基板を
介して平板ヒータの発熱部を前記構成板の外面に押圧す
る構成としたことにより、加熱室とこの加熱室を構成す
る構成板の外面に取付けられる平板ヒータとの密着性を
確保することができるので、平板ヒータから加熱室への
熱の伝導効率が高いという効果が得られている。(G) Effect of the Invention According to this invention, the punching tongue is provided on the holding plate for holding the heat insulating material along the mounting substrate of the flat plate heater,
The heating chamber and the outer surface of the constituent plate forming the heating chamber are configured such that the heat generating portion of the flat plate heater is pressed against the outer surface of the constituent plate by the tip of the punched tongue via the mounting substrate of the flat plate heater. Since the close contact with the flat plate heater attached to the flat plate heater can be ensured, the effect of high heat conduction efficiency from the flat plate heater to the heating chamber is obtained.
第１図はこの考案の一実施例を示す縦断面図、第２図は
この実施例の平板ヒータと電装部品の設置板との共締め
状態を示す平面図、第３図は第２図のＡ−Ａ矢視図、第
４図は従来例の第２図相当図、第５図は従来例の第３図
相当図である。 Ｒ……電子レンジ、１……機器本体、２……加熱室、３
……平板ヒータ、６……取付け用基板、７……加熱室の
天板、８……断熱材、９……電装部品の設置板、12……
ビス、14……打抜き舌片。FIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIG. 2 is a plan view showing a joint state of a flat plate heater and an installation plate for electrical components of this embodiment, and FIG. FIG. 4 is a view corresponding to FIG. 2 of the conventional example, and FIG. 5 is a view corresponding to FIG. 3 of the conventional example. R: Microwave oven, 1 ... Device body, 2 ... Heating room, 3
...... Plate heater, 6 …… Mounting board, 7 …… Heating chamber top plate, 8 …… Insulation material, 9 …… Installation plate for electrical components, 12 ……
Screw, 14 ... Punching tongue.
Claims (1)
熱室を構成する構成板の外面に取付けられる平板ヒータ
との取付構造であって、 前記構成板の外面に板状発熱部とその取付け用基板とか
らなる平板ヒータを発熱部が構成板側に位置するように
配設し、この平板ヒータの取付け用基板のうちの発熱部
側とは反対側の面に板状断熱材を配設し、更にこの断熱
材のうちの前記取付け用基板側とは反対側の面に断熱材
を前記取付け用基板に沿わせて保持するための保持板を
配設し、 この保持板と前記取付け用基板とをそれぞれの外周部に
おいて前記構成板の外面に共締めし、 保持板に、その一部が打ち抜かれて前記取付け用基板側
へ折り曲げられかつ前記断熱材を貫通して先端でその取
付け用基板に当接しそれによってその取付け用基板を介
して前記発熱部を前記構成板の外面に押圧し得る打抜き
舌片を形設してなる加熱室と平板ヒータとの取付構造。1. A mounting structure of a heating chamber provided in an equipment body and a flat plate heater mounted on an outer surface of a constituent plate forming the heating chamber, wherein a plate-shaped heat generating portion is provided on an outer surface of the constituent plate. A flat plate heater composed of the mounting substrate is arranged so that the heat generating portion is located on the side of the component plate, and a plate heat insulating material is provided on the surface of the flat plate heater on the side opposite to the heat generating portion side. Further, a holding plate for holding the heat insulating material along the mounting board is arranged on the surface of the heat insulating material opposite to the mounting board side. The mounting board and the outer peripheral portion of each of them are fastened together to the outer surface of the constituent plate, and a part of the holding plate is punched out and bent to the mounting board side and penetrates the heat insulating material to form a tip at the end. Abuts the mounting substrate, thereby interposing the mounting substrate Mounting structure of the heating chamber and the flat plate heater formed by Katachi設 punched tongues capable of pressing the heat-generating portion on an outer surface of the construction board Te.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11120887U JPH0710162Y2 (en) | 1987-07-20 | 1987-07-20 | Mounting structure for heating chamber and flat plate heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11120887U JPH0710162Y2 (en) | 1987-07-20 | 1987-07-20 | Mounting structure for heating chamber and flat plate heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6416505U JPS6416505U (en) | 1989-01-27 |
| JPH0710162Y2 true JPH0710162Y2 (en) | 1995-03-08 |
Family
ID=31349056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11120887U Expired - Lifetime JPH0710162Y2 (en) | 1987-07-20 | 1987-07-20 | Mounting structure for heating chamber and flat plate heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710162Y2 (en) |
-
1987
- 1987-07-20 JP JP11120887U patent/JPH0710162Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6416505U (en) | 1989-01-27 |
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