-
1.发明授权
公开(公告)号：US5902099A
公开(公告)日：1999-05-11
申请号：US742236
申请日：1996-10-31
CPC分类号： F23N5/203 , F23N5/123 , F23N2023/08 , F23N2025/04 , F23N2025/26 , F23N2027/38 , F23N2029/00 , F23N2031/10 , F23N2041/02 , F23N5/12
摘要： An electric control is shown adapted for use with gas furnaces which controls fan motors, ignition controls and a gas valve based on inputs from a room thermostat, limit switches, a flame probe, a flame roll-out probe, and a condensate sensor. A roll-out detection circuit utilizing flame rectification includes a multidirectional roll-out probe 16 coupled to a microcontroller (U2) through an inverter (U3) to provide both fault both protection and fault identification. A condensate sensor (20) in the form of a conductive condensate sensor member is also coupled to the microcontroller (U2) through an inverter (U3) to detect the presence of condensate build-up.
摘要翻译： 电气控制显示适用于气体炉，其基于来自房间恒温器，限位开关，火焰探测器，火焰推出探头和冷凝物传感器的输入来控制风扇电动机，点火控制和气体阀。 利用火焰整流的推出检测电路包括通过逆变器（U3）耦合到微控制器（U2）的多向推出探头16，以同时提供故障保护和故障识别。 导电冷凝物传感器构件形式的冷凝物传感器（20）也通过逆变器（U3）耦合到微控制器（U2），以检测冷凝物积聚的存在。
-
公开(公告)号：US5530615A
公开(公告)日：1996-06-25
申请号：US163782
申请日：1993-12-06
CPC分类号： H01H9/56 , H01H2009/566 , Y10T307/951
摘要： An electronic control for gas furnaces controls a two speed main blower fan and an induction draft fan based on 24 volt input signals from a room thermostat, a high limit and an ignition control including a gas valve. The input signals are coupled to input ports of a microprocessor through current limiting resistors and to AC ground through pull down resistors. AC ground is also connected to the IRQ port of the microprocessor. Output ports of the microprocessor are connected to a relay driver which in turn is connected to relays for energizing and de-energizing the fans. The control calibrates itself on a continuing periodic basis to read the AC inputs synchronously at the peak of their wave and can switch the relays asynchronously based on the Real Time Clock of the microprocessor or can be switched synchronously by providing a selected delay so that contact engagement and disengagement occurs at or near the zero crossing of the AC line voltage wave form. When used with resistive loads the relays are switch in response to a signal from the microprocessor which is delayed based on the mechanical switching time constant of the relays to provide contact closure and opening at the selected point on the AC line voltage wave form. An alternate embodiment shows a feedback network used to calibrate the specific delay period for each relay upon initialization. When used with inductive loads contact closing can be effected synchronously and contact opening asynchronously.
摘要翻译： 燃气炉的电子控制器基于来自室温恒温器，上限和包括气阀的点火控制器的24伏输入信号来控制双速主鼓风机和引风机。 输入信号通过限流电阻耦合到微处理器的输入端口，并通过下拉电阻耦合到交流电源。 交流接地也连接到微处理器的IRQ端口。 微处理器的输出端口连接到继电器驱动器，继电器驱动器又连接到继电器，以使风扇通电和断电。 控制器在持续的周期性基础上自行校准，以在其波峰值同步读取AC输入，并且可以基于微处理器的实时时钟异步地切换继电器，或者可以通过提供所选择的延迟来同步地切换继电器，使得接触接合 并且在AC线电压波形的过零点处或附近发生分离。 当与电阻性负载一起使用时，继电器响应于来自微处理器的信号而被切换，该信号基于继电器的机械开关时间常数被延迟，以在交流线路电压波形上的选定点处提供触点闭合和断开。 替代实施例示出了用于在初始化时校准每个继电器的特定延迟周期的反馈网络。 当与感性负载一起使用时，触点闭合可以同步进行并且异步接触。
-
公开(公告)号：US5806440A
公开(公告)日：1998-09-15
申请号：US651009
申请日：1996-05-20
CPC分类号： F23N3/082 , F23N1/06 , F23N1/062 , F23N2023/08 , F23N2025/04 , F23N2033/04 , F23N2033/10 , F23N5/18
摘要： A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.
摘要翻译： 一种燃气炉系统（10）具有控制器（14），其通过气阀（12）和通过引风通风扇（28）进行燃烧的空气的控制，通过点火器点燃气体 （22），响应于来自恒温器（42）的信号，借助于鼓风机（34）从热交换器（20）输送加热的空气。 通过控制驱动感应的电动机风扇（28）的电动机的速度来提供选择的用于燃烧的恒定气流，尽管在背压中可能发生变化。 与电动机转矩和电动机速度成比例的感应通风风扇电动机参数被持续读取并输入到计算期望电压的控制器（14），并将其与存储在控制器存储器中的参考数据进行比较，并对诱导的速度进行校正 风机电机保持恒定的气流。 还监控电机转速和电机转矩，以确保它们位于指定安全运行的选定范围内，并响应于继电器（KM1）的输入通电被控制以对燃气阀和点火进行灭弧。
-
公开(公告)号：US06244515B1
公开(公告)日：2001-06-12
申请号：US09436126
申请日：1999-11-08
IPC分类号： G05D2300
CPC分类号： G05D23/1951 , F23N1/002 , F23N2023/22 , F23N2037/10
摘要： A gas furnace control for two stage gas furnaces which can be used with either a single stage or a two stage room thermostat monitors the length of time the first, low combustion, stage is energized and upon exceeding a selected period of time, e.g., 10 minutes, energizes the second, high combustion stage. Energization of the second stage signal (W2) also energizes the second stage without regard to timing of the first stage.
摘要翻译： 可以与单级或两级室温恒温器一起使用的两级气体炉的燃气炉控制器监测第一低燃烧级通电的时间长度，并且超过选定的时间段，例如10 分钟，激发第二个高燃烧阶段。 第二级信号（W2）的通电也使得第二级的通电不考虑第一级的定时。
-
公开(公告)号：US06237420B1
公开(公告)日：2001-05-29
申请号：US09291879
申请日：1999-04-14
IPC分类号： G01L700
CPC分类号： G05B23/0291 , G05B9/02
摘要： A microprocessor based control for monitoring oil pressure of compressors can use a normally open or a normally closed pressure switch (S1, S2) and LED indicator (LED1) having a diode isolated power supply (VDD−SENSOR) separate from the power supply (VDD) of the microprocessor (U1). Timing of the microprocessor is derived from the frequency of the line (60 Hz). The microprocessor is normally in a sleep mode and is awakened by each 60 Hz interrupt to check the condition of the pressure switch, the accumulated time that inadequate pressure has occurred and whether the relay needs to be energized and then returns to the sleep mode. The resulting reduced power requirement enables extended retention of accumulated “bad” oil time. Since oil pressure does not build-up to a satisfactory level for the first eight seconds or so upon start-up, the microprocessor senses whether the oil pressure indicates good oil immediately upon start-up which indicates a fault condition and if so will shut the system down but only after approximately four seconds which allows the compressor to be jogged, or momentarily energized, to force refrigerant out of the compressor and into the system, which is necessary on initial start-up of the compressor system.
摘要翻译： 用于监测压缩机油压的基于微处理器的控制器可以使用具有与电源（VDD）分离的二极管隔离电源（VDD-SENSOR）的常开或常闭压力开关（S1，S2）和LED指示灯（LED1） ）的微处理器（U1）。 微处理器的时序来自线路的频率（60 Hz）。 微处理器通常处于睡眠模式，并被每个60Hz的中断唤醒，以检查压力开关的状况，压力发生的累积时间以及继电器是否需要通电然后返回到睡眠模式。 所产生的减少功率要求能够延长保持累积的“不良”油时间。 由于在启动时的前8秒钟内油压不会达到令人满意的水平，所以微处理器会检测到油压是否在启动时立即显示良好的油，这表明故障状态，如果是这样，则关闭 系统下降，但仅在大约四秒钟之后，允许压缩机被点动或瞬间通电，以迫使制冷剂从压缩机流出并进入系统，这在压缩机系统的初始启动时是必需的。
-
公开(公告)号：US5720231A
公开(公告)日：1998-02-24
申请号：US559216
申请日：1995-11-16
CPC分类号： F23N3/082 , F23N1/06 , F23N1/062 , F23N2023/08 , F23N2025/04 , F23N2033/04 , F23N2033/10 , F23N5/18
摘要： A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.
-
公开(公告)号：US06222333B1
公开(公告)日：2001-04-24
申请号：US09459205
申请日：1999-12-10
IPC分类号： H02P118
摘要： A low cost, microprocessor (U1) based motor controller (10) for driving a half-wave, multiple speed, reversible, DC brushless motor (30) directly from standard AC 50/60 Hz power. A large number of different speed and rotation direction combinations may be chosen before or after the motor is installed using configuration resistors (Rcol1, Rrow1). SIDACs (TS2, TS3) each serially connected to a diode (D6, D5) are connected across respective coils (COIL—1, COIL—2) to clamp the flyback energy in the windings to a few volts when triggered and allow Vemf to float when not triggered. The control adjusts the relative phase timing of commutation during start-up and during running to enhance efficiency. Locked rotor protection is provided by limiting start-up time to a selected period which is followed by a selected cool-off time.
摘要翻译： 一种低成本微处理器（U1）的电机控制器（10），用于直接从标准AC 50/60 Hz功率驱动半波，多速，可逆的直流无刷电机（30）。 可以在使用配置电阻（Rcol1，Rrow1）安装电机之前或之后选择大量不同的速度和旋转方向组合。 每个串联连接到二极管（D6，D5）的SIDAC（TS2，TS3）连接在相应的线圈（COIL-1，COIL-2）上，以在触发时将绕组中的回扫能量钳位到几伏，并允许Vemf浮起 何时未触发。 该控制调节启动期间和运行期间换相的相位相位时序，以提高效率。 锁定转子保护通过将启动时间限制到选定的时间段，然后是选定的冷却时间来提供。
-
公开(公告)号：US5524556A
公开(公告)日：1996-06-11
申请号：US489274
申请日：1995-06-09
CPC分类号： F23N3/082 , F23N1/06 , F23N1/062 , F23N2023/08 , F23N2025/04 , F23N2033/04 , F23N2033/10 , F23N5/18
摘要： A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.
摘要翻译： 一种燃气炉系统（10）具有控制器（14），其通过气阀（12）和通过引风通风扇（28）进行燃烧的空气的控制，通过点火器点燃气体 （22），响应于来自恒温器（42）的信号，借助于鼓风机（34）从热交换器（20）输送加热的空气。 通过控制驱动感应的电动机风扇（28）的电动机的速度来提供选择的用于燃烧的恒定气流，尽管在背压中可能发生变化。 与电动机转矩和电动机速度成比例的感应通风风扇电动机参数被持续读取并输入到计算期望电压的控制器（14），并将其与存储在控制器存储器中的参考数据进行比较，并对诱导的速度进行校正 风机电机保持恒定的气流。 还监控电机转速和电机转矩，以确保它们位于指定安全运行的选定范围内，并响应于继电器（KM1）的输入通电被控制以对燃气阀和点火进行灭弧。
-
公开(公告)号：US5034848A
公开(公告)日：1991-07-23
申请号：US451326
申请日：1989-12-19
IPC分类号： G01L9/00
CPC分类号： G01L9/0075
摘要： Differentially connected capacitive sensors are mechanically coupled with the flexible capacitor plate of one sensor coupled to the source of pressure to be measured, the flexible capacitor plate of the other sensor coupled to ambient pressure. In a second embodiment, inaccuracies due to forces on the flexible plate are minimized by providing a housing with a tapered inner wall, an O-ring and a support to apply a radial load to the sensor due to clamping action from the tapered housing against the O-ring to provide a seal for the pressure sensing chamber. In a further embodiment, the cost of fabrication of the pressure transducer is minimized by providing the housing as a one piece cup. The electronics are mounted on the exterior surface of the low pressure side of the ceramic capacitor pressure sensing element and sealed in thereat by potting with an epoxy. In addition, an electrical pin connector from the electronics and a vent to the low pressure surface of the movable plate are secured in the potting material and extend externally thereof. In a further embodiment, pressures applied to the movable diaphragm of the pressure sensing element by the gasket are eliminated by providing a ceramic capacitor having a movable diaphragm element having smaller length and width dimensions than the fixed capacitor substrate. The gasket is positioned around the movable diaphragm element and on the fixed capacitor plate with the housing being stepped to apply a force against the gasket but remain out of contact with the movable diaphragm element.
摘要翻译： 差分连接的电容式传感器与耦合到要测量的压力源的一个传感器的柔性电容器板机械耦合，另一个传感器的柔性电容器板耦合到环境压力。 在第二实施例中，由于通过提供具有锥形内壁，O形环和支撑件的壳体，由于由锥形壳体抵抗着的弹性元件的夹紧作用而向柔性板施加径向载荷，使得柔性板上的力的不准确性被最小化 O形圈，为压力传感室提供密封。 在另一个实施例中，通过将壳体设置为一体式杯来最小化压力传感器的制造成本。 电子器件安装在陶瓷电容器压力感测元件的低压侧的外表面上，并通过用环氧树脂灌封将其密封在其中。 此外，从电子设备的电针连接器和可移动板的通气口到低压表面固定在灌封材料中并在其外部延伸。 在另一实施例中，通过提供具有比固定电容器基板更小的长度和宽度尺寸的可移动隔膜元件的陶瓷电容器来消除通过垫圈施加到压力感测元件的可移动隔膜的压力。 垫圈围绕可动隔膜元件和固定电容器板定位，其中壳体被阶梯状地施加抵靠垫圈的力，但是保持与可动隔膜元件不接触。
-
公开(公告)号：US5372427A
公开(公告)日：1994-12-13
申请号：US812232
申请日：1991-12-19
CPC分类号： G01K1/16
摘要： A low-cost, highly-responsive temperature sensor has a thermistor element surface-mounted in a circuit defined by an electrically-conducting layer of a three-layer circuit substrate to be in close thermal coupling to a metal base layer on an opposite side of the substrate. The base layer is adapted to be disposed in heat-collecting relation to a surface whose temperature is to be monitored. An intermediate layer of the substrate has a binder electrically insulating the thermistor from the metal base layer and has thermally-conducting particles dispersed in the binder to improve thermal coupling of the thermistor to the heat-collecting substrate base layer. The circuit defines terminal pads surface-mounting the thermistor element at one end of the substrate and defines interconnected terminal pads at an opposite end of the substrate which are connected to device lead wires in substantial thermal isolation from the thermistor element.
摘要翻译： 低成本，高响应的温度传感器具有表面安装在由三层电路基板的导电层限定的电路中的热敏电阻元件，以与第三层电路基板的相反侧上的金属基底层紧密地热耦合 底物。 基层适于与要监测温度的表面进行热收集关系。 基板的中间层具有将热敏电阻与金属基层电绝缘的粘合剂，并且具有分散在粘合剂中的导热颗粒以改善热敏电阻与集热基板基底层的热耦合。 该电路定义了在基板的一端表面安装热敏电阻元件的端子焊盘，并且在基板的相对端限定了互连的端子焊盘，其连接到与热敏电阻元件相当热隔离的器件引线。
-
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.025 秒)
