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1. 发明授权

US5367601A Supplemental heat control system with duct temperature sensor and variable setpoint 失效
标题翻译：辅助热控系统，带有管道温度传感器和可变设定值
公开(公告)号：US5367601A
公开(公告)日：1994-11-22
申请号：US197296
申请日：1994-02-16
申请人： Robert T. Hannabery
发明人： Robert T. Hannabery
IPC分类号： F24D19/10 , G05D23/19 , F25B29/00 , F24H1/00
CPC分类号： F24D19/1087 , G05D23/1912
摘要： A heating system has a primary heat source such as a heat pump, with a capacity that occasionally needs to be supplemented from a supplemental heat source such as an electrical resistance heater. The heating system heats and circulates a medium such as air via supply and return ducts. A thermostat responsive to the heated space has two outputs for operation at different user-selected temperatures defining stages of operation at which the primary and secondary heat sources are normally drawn upon. The invention controls the duct temperature by activating the supplemental heat source according to a further setpoint, that is adjusted by a processor or other control circuit. A temperature sensor allows the control circuit to determine the duct temperature. The control circuit is also coupled to the two thermostat outputs and to a memory register storing the variable duct temperature setpoint. The duct temperature is compared to the duct temperature setpoint and the supplemental heating means is enabled to increase the duct temperature when the duct temperature falls below the variable setpoint. The control circuit adjusts the duct temperature setpoint upwardly upon occurrence of the temperature in the heated space dropping below a lower one of the space temperature setpoints (indicating that the heat pump is not keeping up), and downwardly upon the temperature in the heated space exceeding a higher one of the two space temperature setpoints (indicating that the heating capacity is adequate and use of the resistance heater should be reduced).
摘要翻译：加热系统具有诸如热泵的主要热源，其容量有时需要从诸如电阻加热器的补充热源补充。加热系统通过供应和回流管道加热和循环诸如空气的介质。响应于加热空间的恒温器具有两个输出，用于在不同的用户选择的温度下操作，定义了一级和二级热源通常被吸入的操作阶段。本发明通过根据由处理器或其他控制电路调节的另外的设定点激活补充热源来控制管道温度。温度传感器允许控制电路确定管道温度。控制电路还耦合到两个恒温器输出端和一个存储可变管道温度设定值的存储器寄存器。将管道温度与管道温度设定值进行比较，并且当管道温度低于可变设定值时，补充加热装置能够增加管道温度。控制电路在发生加热空间中的温度下降到低于空气温度设定值较低的一个（指示热泵未保持）时向上调节管道温度设定点，并且在加热空间中的温度超过两个空间温度设定值中较高的一个（表示加热能力足够，电阻加热器的使用应减少）。

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