Electrical heating element for heating a plate and process for the
production thereof
    2.
    发明授权
    Electrical heating element for heating a plate and process for the production thereof 失效
    用于加热板的电加热元件及其制造方法

    公开(公告)号:US4471214A

    公开(公告)日:1984-09-11

    申请号:US398556

    申请日:1982-07-15

    CPC分类号: H05B3/748 H05B2203/017

    摘要: An electrical heating element (18) for heating a plate, e.g. a glass ceramic plate (14) has a multilayer insulating support (12) in whose dish-shaped depression heater coils (18) are arranged in spiral form. The heater coils are located on the insulating support surface (17) and have downwardly directed deformations (19) comprising a turn pressed out in the downwards direction. These deformations (19) are embedded in the surface layer (16) of the insulating support, which is mechanically stronger and more thermally conductive than the underlying insulating layer (15). The deformations are produced in a mould (22, 23) carrying the heater coils in slots (21) and by means of a bladelike punch (24) a turn is pressed into a depression (25). The connection between heater coil (18) and insulating support (12) during the moulding thereof comprises a loose insulating material, the heater coil and deformations being placed in slots (27) of mould part (26).

    摘要翻译: 一种用于加热板的电加热元件(18),例如 玻璃陶瓷板(14)具有多层绝缘支撑件(12),其碟形凹陷加热器线圈(18)以螺旋形式布置。 加热器线圈位于绝缘支撑表面(17)上并且具有向下定向的变形(19),包括沿向下方向压出的转弯。 这些变形(19)嵌入在绝缘支撑体的表面层(16)中,该表面层(16)比下面的绝缘层(15)机械地更强并且更加导热。 在模具(22,23)中,在槽(21)中承载加热器线圈并且通过平板冲头(24)将转弯压入凹部(25)中来产生变形。 加热器线圈(18)和绝缘支撑件(12)在其模制期间的连接包括松散的绝缘材料,加热器线圈和变形被放置在模具部件(26)的槽(27)中。

    Electrical radiant heater for heating heating surfaces
    4.
    发明授权
    Electrical radiant heater for heating heating surfaces 失效
    用于加热表面的电辐射加热器

    公开(公告)号:US4789773A

    公开(公告)日:1988-12-06

    申请号:US887255

    申请日:1986-07-18

    申请人: Bernhard Mikschl

    发明人: Bernhard Mikschl

    IPC分类号: H05B3/10 H05B3/68 H05B3/74

    CPC分类号: H05B3/688 H05B3/748

    摘要: An electric radiant heater (11) for heating a glass ceramic cooking surface (12) contains a dish-shaped insulator (14), to whose inner bottom surface (18) are fixed heater coils (20). The heater coils have an oval cross-section and are pressed by their narrow sides into surface (18) and fixed. The fixing pressing in takes place during the moulding of the moist insulator (14), made from fibrous material and by means of a male mould receiving the heater coils in slots.

    摘要翻译: 用于加热玻璃陶瓷烹饪表面(12)的电辐射加热器(11)包含一个碟形绝缘体(14),其内底表面(18)是固定的加热线圈(20)。 加热器线圈具有椭圆形的横截面,并被其窄边挤压到表面(18)中并固定。 在湿式绝缘体(14)的模制期间,由纤维材料制成并且通过在槽中接收加热器线圈的阳模来进行定影按压。