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An analog signal output circuit of a central air-conditioning partition controller

An analog signal and output circuit technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of inconvenient, inaccurate, qualitative and other problems in debugging and operation management, so as to reduce the impact, increase the scope of application, extend the The effect of service life

Active Publication Date: 2018-03-16
山东金洲科瑞节能科技有限公司
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Problems solved by technology

[0003] Although some general-purpose valves such as globe valves and ball valves also have a certain adjustment ability, but because there is no control system and the real-time adjustment cannot meet the flow requirements of the system, this adjustment can only be said to be qualitative and inaccurate. It often brings great inconvenience to the debugging work and operation management after the installation of the project

Method used

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  • An analog signal output circuit of a central air-conditioning partition controller
  • An analog signal output circuit of a central air-conditioning partition controller

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Embodiment Construction

[0015] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

[0016] Such as Figure 1-2 As shown, the analog signal output circuit of the central air-conditioning partition controller of the present invention includes an amplifier circuit and a voltage-current conversion circuit, and the voltage signal is output by the frequency-voltage conversion circuit, and is output to the switch valve control circuit through the amplifier circuit and the voltage-current conversion circuit in turn. module.

[0017] The amplifying circuit includes an operational amplifier M1B, and the voltage-current conversion circuit includes an operational amplifier M1A and a transistor Q1.

[0018] The analog signal output circuit also includes a resistor R24, one end of the resistor R24 ​​is connected to the frequency voltage conversion ci...

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Abstract

The invention discloses an analog signal output circuit of a central air-conditioning partition controller. The analog signal output circuit of the central air-conditioning partition controller comprises an amplifying circuit and a voltage current switching circuit. A voltage signal is output by a frequency voltage switching circuit, and is output to a switch valve control module through the amplifying circuit and the voltage current switching circuit successively. The analog signal output circuit of the central air-conditioning partition controller has the characteristics of safety, stabilization, long service life, and extensive application range.

Description

technical field [0001] The invention relates to the technical field of heating system signal processing, in particular to an analog signal output circuit of a central air-conditioning zone controller. Background technique [0002] Hydraulic imbalance is the most common problem in building HVAC water systems. Due to hydraulic imbalance, the flow distribution of the system is unreasonable, with excess flow in some areas and insufficient flow in some areas, resulting in the situation that some areas are not hot in winter and not cold in summer, and the system transports cold and heat unreasonably, resulting in energy waste. Or in order to solve this problem, improve the water pump head, but still can produce heat (cold) uneven and bigger electric energy waste. Therefore, the corresponding regulating valve must be used to adjust the flow distribution of the system. [0003] Although some general-purpose valves such as globe valves and ball valves also have a certain adjustment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/569
CPCG05F1/569
Inventor 李鹏
Owner 山东金洲科瑞节能科技有限公司
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