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Fan coil temperature controller for changing motor power by changing frequency of alternating current

A fan coil unit and motor power technology, applied in heating and ventilation control systems, space heating and ventilation, heating and ventilation safety systems, etc., can solve the problems of human discomfort, non-energy saving, intermittent temperature, etc. The effect of reducing the number of breaks and improving the accuracy of temperature control

Inactive Publication Date: 2019-01-29
BEIJING HAMMER & AUK ENERGY-EFFICIENT EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of fan coil motor control applications, most of them use frequency conversion control to control the power of the motor to achieve the purpose of controlling the output power of the motor. The structure of the motor control system is relatively complicated and the cost is too high
If the power of the motor is only controlled by on-off for a long time, it is easy to cause the temperature to be controlled intermittently and make the temperature unstable, resulting in discomfort for the human body and no energy saving

Method used

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  • Fan coil temperature controller for changing motor power by changing frequency of alternating current

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0013] Such as figure 1 As shown, according to the embodiment of the present invention, the fan coil thermostat that changes the power of the motor by changing the frequency of the alternating current includes a voltage input terminal, a switching power supply circuit, and an AC synchronous circuit, and the output terminal of the AC synchronous circuit is connected to a microprocessor The input end of the microprocessor is unidirectionally connected with a button and a temperature sensor, and...

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Abstract

The invention discloses a fan coil temperature controller for changing motor power by changing frequency of an alternating current. The controller comprises a voltage input end, a switch power supplycircuit and an alternating current synchronous circuit, wherein the output end of the alternating current synchronous circuit is connected with the input end of a microprocessor, the input end of themicroprocessor is in one-way connection with a key and a temperature sensor, and the output end of the microprocessor is connected with a liquid crystal control circuit, an intelligent frequency controller, a two-way silicon-controlled rectifier and a relay in a one-way mode. According to the fan coil temperature controller, the output power of a motor is changed by changing the frequency of the alternating current through the motor, the temperature control precision is improved, the two-way silicon-controlled rectifier enables a fan coil motor to work per the set frequency, so that the on-offfrequency of the motor is reduced, and the purposes of comfort and energy conservation are achieved.

Description

technical field [0001] The invention relates to the technical field of electric motor control, in particular to a fan coil temperature controller which changes the power of the motor by changing the frequency of alternating current. Background technique [0002] In the field of fan coil motor control applications, most of them use frequency conversion control to control the power of the motor to achieve the purpose of controlling the output power of the motor. The structure of the motor control system is relatively complicated and the cost is too high. If the power of the motor is only controlled by on-off for a long time, it is easy to cause the temperature to be controlled intermittently and make the temperature unstable, resulting in discomfort for the human body and no energy saving. Contents of the invention [0003] Aiming at the above-mentioned technical problems in the related art, the present invention proposes a fan coil thermostat that changes the power of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/88
CPCF24F11/88
Inventor 苑广明
Owner BEIJING HAMMER & AUK ENERGY-EFFICIENT EQUIP CO LTD
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