Sealed enclosure for electrical circuitry in moist environment
    1.
    发明授权
    Sealed enclosure for electrical circuitry in moist environment 失效
    密封外壳,用于潮湿环境中的电路

    公开(公告)号:US4791258A

    公开(公告)日:1988-12-13

    申请号:US80520

    申请日:1987-07-31

    IPC分类号: H01H13/70 H01H9/04

    摘要: A sealed enclosure is provided for electrical circuitry to be located in a moist environment, as near a spa. The enclosure includes a housing of electrical insulating material, a display overlay adhesively bonded to the housing and covering certain openings in the housing for switches and displays, and a retaining bezel over the graphic overlay. Relief porting is provided in the bezel, and preferably also through a flange in a contiguous portion of the housing for assuring that water deposited on the display overlay will be drained away and thus not degrade the seal between the overlay and the housing.

    摘要翻译: 提供一个密封的外壳,用于电路位于潮湿的环境中,靠近水疗中心。 所述外壳包括电绝缘材料的外壳,显示器覆盖层粘合地结合到所述外壳并且覆盖所述外壳中用于开关和显示器的某些开口,以及在所述图形覆盖层上方的保持边框。 在挡板中提供泄压口,并且优选地还通过壳体的连续部分中的凸缘,以确保沉积在显示器覆盖物上的水将被排出,从而不会降低覆盖层和壳体之间的密封。

    Control system with timer redundancy
    2.
    发明授权
    Control system with timer redundancy 失效
    具有定时器冗余的控制系统

    公开(公告)号:US4832594A

    公开(公告)日:1989-05-23

    申请号:US95505

    申请日:1987-09-10

    申请人: Stephen E. Youtz

    发明人: Stephen E. Youtz

    IPC分类号: F23N5/20

    CPC分类号: F23N5/203

    摘要: A fail safe control circuit for supplying gas to a burner is disclosed and includes a plurality of timers, two of which set upper and lower bounds on a window or acceptable time interval during which a third timer must issue a control signal for that signal to be valid. The timers are operated from at least two different sources of timing signals so that a failure of either source of timing signals as well as a malfunction of any one of the three timers will result in an invalid control signal and the control will lock out to preclude burner operation.

    摘要翻译: 公开了一种用于向燃烧器供应气体的故障安全控制电路,并且包括多个定时器,其中两个定时器在窗口上设置上限和下限或可接受的时间间隔,在此期间,第三定时器必须发出该信号的控制信号 有效。 定时器由至少两个不同的定时信号源操作,使得定时信号源的故障以及三个定时器中的任一个的故障将导致无效的控制信号,并且控制将锁定以排除 燃烧器操作。

    Integrated furnace control and control self test
    3.
    发明授权
    Integrated furnace control and control self test 失效
    综合炉控自控自检

    公开(公告)号:US4872828A

    公开(公告)日:1989-10-10

    申请号:US95508

    申请日:1987-09-10

    IPC分类号: F23N5/18 F23N5/24

    摘要: An integrated electronic control arrangement is disclosed in the illustrative environment of a gas-fired furnace. The control incororates a self-test feature which shuts down the furnace and displays a diagnostic fault code in the event of any one of a number of possible sensed faults. Self-testing occurs automatically before an attempt at ignition and during furnace operation. The self-test may also be initiated manually at any time the furnace is not operating. The control accepts digital information on daily temperature setback, weekend temperature setback and vacation setback in any one of several preset schedules and preset setback increments. The control has a multipurpose display for selectively showing component indicative failure codes, temperature setback schedules, time of day, and day of the week.

    摘要翻译: 在燃气炉的说明性环境中公开了集成电子控制装置。 该控制器包含一个自检功能,该功能关闭炉子,并在多个可能感测到的故障中的任何一个情况下显示诊断故障代码。 在点火和窑炉操作之前自动进行自检。 自检也可以在炉子不运行的任何时候手动启动。 该控件接受数字信息关于每日温度挫折,周末温度下降和休假挫折在任何一个预设的时间表和预设的挫折增量。 该控件具有多用途显示,用于选择性地显示组件指示性故障代码,温度回退计划,一天中的一天和一周中的某一天。

    Fail safe gas valve drive circuit
    4.
    发明授权
    Fail safe gas valve drive circuit 失效
    故障安全气阀驱动电路

    公开(公告)号:US4865538A

    公开(公告)日:1989-09-12

    申请号:US95507

    申请日:1987-09-10

    IPC分类号: F23N5/24

    摘要: A fail safe drive circuit for enabling the relay which in turn opens the valve for supplying gas to a burner is disclosed and includes a pair of field effect transistors both of which must be operating properly to enable the relay. One transistor receives an enabling input from a rectifier circuit and will be enabled only if the alternating input signal is of sufficient magnitude and repetition rate. The other transistor is turned on and off by the alternating input signal and the gas valve will be turned on only when each of the transistors is operating in its intended mode. The circuit thus discriminates against false enabling signals such as a direct current signal, line voltage signal, a non-repetitive alternating current signal, or other spurious signal.

    摘要翻译: 公开了一种故障安全驱动电路,用于使继电器能够进一步打开用于向燃烧器供应气体的阀,并且包括一对场效应晶体管,它们都必须正常工作以使能继电器。 一个晶体管接收来自整流器电路的使能输入,并且仅当交流输入信号具有足够的幅度和重复率时才能使能。 另一个晶体管通过交流输入信号导通和关断,只有当晶体管的每个晶体管工作在其预期模式时,气阀才会导通。 因此,电路鉴别出诸如直流信号,线路电压信号,非重复交流信号或其他寄生信号的假启用信号。

    Integrated furnace control having ignition switch diagnostics
    5.
    发明授权
    Integrated furnace control having ignition switch diagnostics 失效
    具有点火开关诊断功能的集成炉控制

    公开(公告)号:US4955806A

    公开(公告)日:1990-09-11

    申请号:US349296

    申请日:1989-05-09

    IPC分类号: F23N5/18 F23N5/20

    摘要: An integrated electronic control arrangement is disclosed in the illustrative environment of burner such as in a gas-fired furnace. The control incorporates a self-test feature which shuts down the furnace in the event of any one of a number of possible sensed faults. Self-testing occurs automatically before an attempt at ignition and during furnace operation. Proper functioning of the sensor which senses for induced air flow through the burner combustion chamber is tested prior to enabling a fan which causes that induced air flow. Air flow is confirmed by sending to and receiving back from the sensor a sequence of pulses. Should air flow not be sensed during a combustion period, combustion is terminated. A flame sensor is provided for determining the presence of a flame in the combustion chamber. During times when a flame should be present, pulse sequences are sent to and received back from the flame sensor to confirm that a flame is present. When it is known that no flame is present, if sent pulses are received back, a fault has occurred and the system locks out. If, at any time, any pulses are received when none were sent the system also locks out.

    摘要翻译: 在燃烧器的示例性环境中公开了集成的电子控制装置,例如在燃气炉中。 该控制结合了一个自检功能,可在任何一种可能的感测故障中关闭炉子。 在点火和窑炉操作之前自动进行自检。 在启用导致空气流动的风扇之前,测试感测通过燃烧器燃烧室引起的空气流动的传感器的正常功能。 通过向传感器发送一个脉冲序列来确认气流。 如果在燃烧期间不能感测到气流,则燃烧终止。 提供了一种用于确定燃烧室中火焰的存在的火焰传感器。 在存在火焰的时候,将脉冲序列发送到火焰传感器并从火焰传感器接收回来,以确认存在火焰。 当已知没有火焰存在时,如果接收到发送脉冲,则发生故障,并且系统锁定。 如果在任何时候没有发送任何脉冲,系统也会锁定。

    Integrated furnace control having ignition and pressure switch
diagnostics
    6.
    发明授权
    Integrated furnace control having ignition and pressure switch diagnostics 失效
    具有点火和压力开关诊断功能的集成炉控制

    公开(公告)号:US4842510A

    公开(公告)日:1989-06-27

    申请号:US095506

    申请日:1987-09-10

    IPC分类号: F23N5/18 F23N5/20

    摘要: An integrated electronic control arrangement is disclosed in the illustrative environment of burner such as in a gas-fired furnace. The control incorporates a self-test feature which shuts down the furnace in the event of any one of a number of possible sensed faults. Self-testing occurs automatically before an attempt at ignition and during furnace operation. Proper functioning of the sensor which senses for induced air flow through the burner combustion chamber is tested prior to enabling a fan which causes that induced air flow. Air flow is confirmed by sending to and receiving back from the sensor a sequence of pulses. Should air flow not be sensed during a combustion period, combustion is terminated. A flame sensor is provided for determining the presence of a flame in the combustion chamber. During times when a flame should be present, pulse sequences are sent to and received back from the flame sensor to confirm that a flame is present. When it is known that no flame is present, if sent pulses are received back, a fault has occurred and the system locks out. If, at any time, any pulses are received when none were sent the system also locks out.

    摘要翻译: 在燃烧器的示例性环境中公开了集成的电子控制装置,例如在燃气炉中。 该控制结合了一个自检功能,可在任何一种可能的感测故障中关闭炉子。 在点火和窑炉操作之前自动进行自检。 在启用导致空气流动的风扇之前,测试感测通过燃烧器燃烧室引起的空气流动的传感器的正常功能。 通过向传感器发送一个脉冲序列来确认气流。 如果在燃烧期间不能感测到气流,则燃烧终止。 提供了一种用于确定燃烧室中火焰的存在的火焰传感器。 在存在火焰的时候,将脉冲序列发送到火焰传感器并从火焰传感器接收回来,以确认存在火焰。 当已知没有火焰存在时,如果接收到发送脉冲,则发生故障,并且系统锁定。 如果在任何时候没有发送任何脉冲,系统也会锁定。

    Gas valve relay redundant safety
    7.
    发明授权
    Gas valve relay redundant safety 失效
    燃气阀继电器冗余安全

    公开(公告)号:US4828484A

    公开(公告)日:1989-05-09

    申请号:US95504

    申请日:1987-09-10

    申请人: Stephen E. Youtz

    发明人: Stephen E. Youtz

    IPC分类号: F23N5/24

    摘要: A fail safe redundancy circuit for controlling a gas valve relay in a gas fired furnace or similar burner is disclosed. The status of the relay contacts is monitored and if those contacts are in the position for enabling the gas valve prior to an ignition attempt, a gate is enabled to shunt the control side of a circuit breaking device such as a fuse to overload that device causing it to kick out or open and interrupt power to the circuit thus disabling the burner. The burner combustion chamber is purged of any accumulated gas after the circuit breaker has been opened.

    摘要翻译: 公开了一种用于控制燃气炉或类似燃烧器中的气体阀继电器的故障安全冗余电路。 监控继电器触点的状态,并且如果这些触点处于点火尝试之前使燃气阀能够启动的位置,则门能够分流断路装置(例如保险丝)的控制侧以使该装置导致过载 它启动或打开并断开电路的电源,从而禁用燃烧器。 在断路器打开之后,燃烧器燃烧室被清除任何积聚的气体。