METHOD OF OPERATING A HEATER IN A DISHWASHER
    2.
    发明申请
    METHOD OF OPERATING A HEATER IN A DISHWASHER 有权
    在洗碗机中操作加热器的方法

    公开(公告)号:US20140251979A1

    公开(公告)日:2014-09-11

    申请号:US13793028

    申请日:2013-03-11

    Inventor: SAADAT HUSSAIN

    CPC classification number: A47L15/42 A47L15/4285 D06F39/04 H05B1/0252

    Abstract: The invention relates to a method of operating an electric heater having a resistive heating element selectively coupled to an AC power supply by a first pair of contacts of a first relay having opened and closed state conditions and by a second pair of contacts of a second relay having opened and closed state conditions and a switch coupled in parallel to the second pair of contacts. The method includes changing a state condition of one of the first and second relays while maintaining the state condition of the other of the first and second relays; upon the changing of the state condition, shunting the output of the second relay contacts coupled with the resistive heating element to the switch; and changing the state condition of the other of the first and second relays after completion of debounce for the one of the first and second relays.

    Abstract translation: 本发明涉及一种操作电加热器的方法,该电加热器具有电阻加热元件,该电阻加热元件通过具有开闭状态条件的第一继电器的第一对触点和第二继电器的第二对触点选择性地耦合到AC电源 具有打开和关闭状态条件以及与第二对触点并联耦合的开关。 该方法包括在保持第一和第二继电器中的另一个的状态的同时改变第一和第二继电器之一的状态条件; 在状态变化时,将与电阻加热元件耦合的第二继电器触点的输出分流到开关; 以及在所述第一和第二继电器之一的去抖动完成之后改变所述第一和第二继电器中的另一个的状态条件。

    METHODS, APPARATUS AND ARTICLES OF MANUFACTURES TO DETECT IMPURITY DEPOSITS IN FLOW-THROUGH WATER HEATERS
    5.
    发明申请
    METHODS, APPARATUS AND ARTICLES OF MANUFACTURES TO DETECT IMPURITY DEPOSITS IN FLOW-THROUGH WATER HEATERS 有权
    方法,装置和制造工艺在流动水加热器中检测污泥沉积物

    公开(公告)号:US20140369672A1

    公开(公告)日:2014-12-18

    申请号:US14274801

    申请日:2014-05-12

    Abstract: Example methods, apparatus and articles of manufacture to detect impurities in flow-through water heaters are disclosed. An example apparatus includes a flow-through water heater having a conduit to conduct a fluid flowing therethrough, a heating element extending around at least a portion of the conduit, and first and second temperature measuring elements to determine respective first and second temperatures at different locations on the conduit; and a computing unit to at least detect an impurity deposit in the conduit based on a difference between the first and second temperatures.

    Abstract translation: 公开了用于检测流通式热水器中的杂质的示例性方法,装置和制品。 一个示例性设备包括流通式热水器,其具有导流体流过其中的流体,围绕导管的至少一部分延伸的加热元件以及第一和第二温度测量元件,以确定不同位置处的相应的第一和第二温度 在管道上 以及计算单元,至少基于第一和第二温度之间的差异来检测导管中的杂质沉积物。

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