JPS6189324U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の炊飯器の安全装置の実施例の
感熱体部分の縦断正面図、第２図は本考案による
第２の実施例の感熱体部分の縦断正面図、第３図
は従来の炊飯器の安全装置の感熱体部分の縦断正
面図である。 なお、１：感熱体、２：ケース、３：永久磁石
、４：リードスイツチ、５：コイルばね、６：外
ケース、７：磁気遮蔽板、８：熱検出器、９：熱
板、１０：磁気遮蔽筒、１１：保護管、２１，２
２，２５：凹部、２３：細長孔、２４：上部蓋板
。 Fig. 1 is a longitudinal sectional front view of the heat sensitive body part of the embodiment of the rice cooker safety device of the present invention, Fig. 2 is a longitudinal sectional front view of the heat sensitive body part of the second embodiment of the present invention, and Fig. 3 is the conventional one. FIG. 3 is a longitudinal sectional front view of a heat sensitive body portion of the safety device of the rice cooker. In addition, 1: heat sensitive body, 2: case, 3: permanent magnet, 4: reed switch, 5: coil spring, 6: outer case, 7: magnetic shielding plate, 8: heat detector, 9: heat plate, 10: Magnetic shielding tube, 11: Protection tube, 21, 2
2, 25: recess, 23: elongated hole, 24: upper cover plate.

Claims (1)

【実用新案登録請求の範囲】 １ 外鍋の底面に配設されている環状の熱板９よ
り突出する感熱体１内の熱検出器８よりの温度出
力信号と前記感熱体１の下降により永久磁石３よ
りの磁束の変化を受け接点切換が行なわれるリー
ドスイツチ４とを設ける炊飯器において、前記感
熱体１が収容される外ケース６の底内面に棒状の
前記永久磁石３と前記リードスイツチ４と平行同
一面に配設し、前記永久磁石３とリードスイツチ
４との間に挿入される磁性材よりなる磁気遮蔽板
７を前記感熱体１に垂設してなる炊飯器の安全装
置。 ２ 前記炊飯器において、感熱体１が収容される
外ケース６の底内面に環状の永久磁石３と、この
内側中心で直交し磁極の中心面に接点を配するリ
ードスイツチ４を立設し、前記永久磁石３の内側
と前記リードスイツチ４の外側間の空隙に挿入さ
れる磁性材よりなる磁気遮蔽筒１０を前記感熱体
１に垂設してなる実用新案登録請求範囲第１項記
載の炊飯器の安全装置。[Claims for Utility Model Registration] 1. Permanently caused by the temperature output signal from the heat detector 8 in the heat sensitive body 1 protruding from the annular heat plate 9 disposed on the bottom of the outer pot and the downward movement of the heat sensitive body 1. In a rice cooker that is provided with a reed switch 4 that performs contact switching in response to a change in magnetic flux from a magnet 3, the bar-shaped permanent magnet 3 and the reed switch 4 are installed on the bottom inner surface of an outer case 6 in which the heat sensitive element 1 is housed. A safety device for a rice cooker comprising a magnetic shielding plate 7 made of a magnetic material, which is disposed parallel to and on the same plane as the permanent magnet 3 and the reed switch 4, and is vertically disposed on the heat sensitive body 1. 2. In the rice cooker, an annular permanent magnet 3 and a reed switch 4, which are orthogonal to each other at the center of the inner side and have a contact point on the center plane of the magnetic pole, are installed on the bottom inner surface of the outer case 6 in which the heat sensitive element 1 is housed, The rice cooker according to claim 1, which is a registered utility model, in which a magnetic shielding cylinder 10 made of a magnetic material is inserted into the gap between the inside of the permanent magnet 3 and the outside of the reed switch 4 and is vertically disposed on the heat sensitive body 1. Equipment safety device.