JPH0117208Y2 - - Google Patents
Info
- Publication number
- JPH0117208Y2 JPH0117208Y2 JP1983003155U JP315583U JPH0117208Y2 JP H0117208 Y2 JPH0117208 Y2 JP H0117208Y2 JP 1983003155 U JP1983003155 U JP 1983003155U JP 315583 U JP315583 U JP 315583U JP H0117208 Y2 JPH0117208 Y2 JP H0117208Y2
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- bottom plate
- heat
- rice cooking
- control circuit
- 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
- 241000209094 Oryza Species 0.000 claims description 30
- 235000007164 Oryza sativa Nutrition 0.000 claims description 30
- 235000009566 rice Nutrition 0.000 claims description 30
- 238000010411 cooking Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Cookers (AREA)
Description
【考案の詳細な説明】 この考案は自動炊飯器の底部構造に関する。[Detailed explanation of the idea] This invention relates to the bottom structure of an automatic rice cooker.
従来の自動炊飯器において、炊飯ヒータの電力
制御を行なうサイリスタ等を制御する炊飯制御回
路部は、炊飯ヒータを取り付けた加熱板の下側に
設けられていた。このため、加熱板からの熱的な
悪影響を受けるという問題があつた。この問題を
解決するために、電力制御用のサイリスタを自動
炊飯器の底板に設置するとともに、炊飯制御回路
部を電力制御用サイリスタの上方に設けたものが
知られている。しかるに、この従来の方式では、
制御回路部はサイリスタと向かい合うように設置
されているため、制御回路部が上記サイリスタか
らの熱を受けて当該制御回路部のマイクロプロセ
ツサ等の故障原因となるといつた欠点を有してい
る。 In conventional automatic rice cookers, a rice cooking control circuit section that controls a thyristor and the like that controls the power of the rice cooking heater is provided below a heating plate to which the rice cooking heater is attached. For this reason, there was a problem of being adversely affected by heat from the heating plate. In order to solve this problem, it is known that a thyristor for power control is installed on the bottom plate of an automatic rice cooker, and a rice cooking control circuit section is provided above the thyristor for power control. However, in this conventional method,
Since the control circuit section is installed so as to face the thyristor, the control circuit section has the disadvantage that the control circuit section receives heat from the thyristor, which may cause failure of the microprocessor, etc. of the control circuit section.
この考案は、従来の炊飯器が有する上述の欠点
を除去するためになされたものであつて、炊飯ヒ
ータ用のサイリスタ等の電力制御素子の放熱を効
果的に行ない得るとともに、炊飯制御回路部が電
力制御素子からの熱に影響されることをも有効に
防止できるようにした自動炊飯器を提供すること
を目的とする。 This invention was made in order to eliminate the above-mentioned drawbacks of conventional rice cookers, and it is possible to effectively dissipate heat from power control elements such as thyristors for rice cooking heaters, and the rice cooking control circuit section is It is an object of the present invention to provide an automatic rice cooker which can effectively prevent the influence of heat from a power control element.
以下にこの考案の一実施例を図面とともに説明
する。 An embodiment of this invention will be described below with reference to the drawings.
第１図において、１は自動炊飯器本体、２は本
体１の下方部を覆うように設けた底板であり、そ
の上側には炊飯ヒータ３、炊飯ヒータ３により加
熱される加熱板４が設けられ、加熱板４上に内鍋
５が着脱可能に置かれている。底板２は所定深さ
の皿形状に形成されるとともに、底板２のクラン
ジ２ａを本体１の脚６との間に挾んでねじ止めす
ることにより固定される。 In FIG. 1, 1 is the automatic rice cooker main body, 2 is a bottom plate provided to cover the lower part of the main body 1, and above the bottom plate is provided a rice cooking heater 3 and a heating plate 4 heated by the rice cooking heater 3. , an inner pot 5 is removably placed on a heating plate 4. The bottom plate 2 is formed into a dish shape with a predetermined depth, and is fixed by sandwiching the cranges 2a of the bottom plate 2 and the legs 6 of the main body 1 with screws.
７は炊飯ヒータの電力制御用のサイリスタ、８
はサイリスタ７を取り付けるための金属板にてな
る半円形状の放熱板である。この放熱板８は底板
２の図上右半部に形成された半円形状の開口９内
に嵌め込まれており、かつ底板２の適宜箇所に設
けられた切起片１０を放熱板８のフランジに設け
たスリツト（図示せず）に挿入し、該切起片１０
を折曲することにより放熱板８が固定される。ま
た、放熱板８は底板２の縁立てによつて線接触の
みであるので放熱板８から底板２への熱伝導は押
さえる様にされている。 7 is a thyristor for power control of the rice cooking heater, 8
is a semicircular heat sink made of a metal plate to which the thyristor 7 is attached. This heat dissipation plate 8 is fitted into a semicircular opening 9 formed in the right half of the bottom plate 2 in the figure. The cut and raised piece 10 is inserted into a slit (not shown) provided in the
The heat sink 8 is fixed by bending. Further, since the heat sink 8 has only a line contact due to the raised edge of the bottom plate 2, heat conduction from the heat sink 8 to the bottom plate 2 is suppressed.
上記サイリスタ７は、その放熱フイン７ａを放
熱板８に熱伝導良好に接触するようにしてねじ１
１により固定される。放熱板８は上述のようにサ
イリスタ７の放熱を行なうとともに、この放熱板
８には複数個の放熱用の通風孔１２があけられて
おり、加熱板４等からの熱の外部への放熱も行な
えるようにしている。 The thyristor 7 has its heat dissipation fins 7a in contact with the heat dissipation plate 8 for good heat conduction, and the screws 1
Fixed by 1. The heat sink 8 radiates heat from the thyristor 7 as described above, and the heat sink 8 is provided with a plurality of ventilation holes 12 for heat radiation, so that the heat from the heating plate 4 and the like is also radiated to the outside. I'm trying to do it.
１３はサイリスタ７を制御するための炊飯制御
回路部であり、底板２の上方でかつ上記放熱板８
とは反対側即ち図上左半部に位置するように基板
１４に設けられる。なお、基板１４は炊飯器本体
の下部フレーム１５等に適宜にねじ１６等により
固定される。 13 is a rice cooking control circuit section for controlling the thyristor 7, which is located above the bottom plate 2 and above the heat sink 8.
It is provided on the substrate 14 so as to be located on the opposite side, that is, on the left half in the figure. Note that the board 14 is fixed to the lower frame 15 or the like of the rice cooker main body with appropriate screws 16 or the like.
以上の構成において、炊飯動作時にサイリスタ
７が発する熱は、放熱板８を介して放熱される。
さらに、炊飯制御回路部１３は上記サイリスタ７
から離れた位置にあるので、このサイリスタ７の
熱の影響をほとんど受けることがない。 In the above configuration, the heat generated by the thyristor 7 during the rice cooking operation is radiated via the heat sink 8.
Furthermore, the rice cooking control circuit section 13 includes the thyristor 7
Since it is located far away from the thyristor 7, it is hardly affected by the heat of the thyristor 7.
以上に詳述したように、この考案によれば、炊
飯ヒータ制御用のサイリスタを炊飯器本体の底板
の一半部に設けた放熱板に取り付け、かつ制御回
路部を底板の他半部側の上方に設けたので、炊飯
動作時にサイリスタの熱が制御回路部にほとんど
影響を与えることなくサイリスタならびに制御回
路部の温度上昇を効果的に防止することができる
自動炊飯器を提供することができる。 As detailed above, according to this invention, the thyristor for controlling the rice cooking heater is attached to the heat sink provided on one half of the bottom plate of the main body of the rice cooker, and the control circuit is placed above the other half of the bottom plate. Therefore, it is possible to provide an automatic rice cooker that can effectively prevent the temperature of the thyristor and the control circuit from rising while the heat of the thyristor hardly affects the control circuit during the rice cooking operation.
第１図はこの考案の一実施例を示す自動炊飯器
底部の断面図、第２図は第１図の実施例における
底板の上面図である。
１……自動炊飯器本体、２……底板、７……サ
イリスタ、８……放熱板、１３……炊飯制御回路
部。
FIG. 1 is a sectional view of the bottom of an automatic rice cooker showing an embodiment of this invention, and FIG. 2 is a top view of the bottom plate of the embodiment of FIG. DESCRIPTION OF SYMBOLS 1... Automatic rice cooker body, 2... Bottom plate, 7... Thyristor, 8... Heat sink, 13... Rice cooking control circuit section.
Claims (1)
て、この放熱板に炊飯ヒータの電力制御用サイリ
スタを取り付けるとともに、上記底板の他半部と
対抗する位置に炊飯制御回路部を設けたことを特
徴とする自動炊飯器。 A heat radiating plate is provided on a part of one half of the bottom plate of the rice cooker, a thyristor for power control of the rice cooking heater is attached to this heat radiating plate, and a rice cooking control circuit is provided at a position opposite to the other half of the bottom plate. An automatic rice cooker characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP315583U JPS59108514U (en) | 1983-01-12 | 1983-01-12 | automatic rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP315583U JPS59108514U (en) | 1983-01-12 | 1983-01-12 | automatic rice cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59108514U JPS59108514U (en) | 1984-07-21 |
| JPH0117208Y2 true JPH0117208Y2 (en) | 1989-05-19 |
Family
ID=30134785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP315583U Granted JPS59108514U (en) | 1983-01-12 | 1983-01-12 | automatic rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59108514U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129517U (en) * | 1981-02-04 | 1982-08-12 |
-
1983
- 1983-01-12 JP JP315583U patent/JPS59108514U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59108514U (en) | 1984-07-21 |
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