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Voltage control circuit of air energy water heater

A technology of voltage regulation circuit and air energy water heater, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of low safety, inconvenient use, and difficult temperature control, and achieves the effect of low cost and overcurrent protection.

Active Publication Date: 2017-11-21
佛山市顺德区约利节能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, in order to overcome the problems existing in the existing stage, the present invention provides a voltage regulation circuit for air energy water heaters, which effectively solves the problem of the existing relays controlling heating, the constant temperature is difficult to control, inconvenient to use and low in safety, and the constant temperature of the frequency converter. Adjust the problem of high cost

Method used

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  • Voltage control circuit of air energy water heater
  • Voltage control circuit of air energy water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, a voltage regulation circuit for an air energy water heater, including a temperature sensor in the temperature signal acquisition circuit that detects the temperature signal in the thermal insulation water tank in real time and converts it into an electrical signal, obtains the temperature difference through subtraction and then scales it up, and clamps the diode between 0~ After +5V, it is sent to the step-by-step voltage regulation circuit as the trigger signal of the first-level triode, and the attached figure 2 The middle arrow indicates the signal flow diagram of the trigger signal triggering the turn-on or turn-off of the first to fourth-level triodes, and the corresponding first-to-fourth-level triodes are turned on or off, which can change the transformation ratio of the step-up transformer, realize the regulation of the output voltage, and then adjust The power of the compressor keeps the water temperature in the heat preservation water tank in a ...

Embodiment 2

[0019] Embodiment 2, on the basis of Embodiment 1, the coupling voltage circuit realizes the regulation and control of the output voltage, and then adjusts the power of the compressor, including a step-up transformer T1, and the primary coil of the step-up transformer T1 has three taps 2, 3 , 4 transformers, step-up transformer T1 wire head 1 is connected to the output end of the four-stage triode voltage regulating circuit, and taps 2, 3, and 4 of the step-up transformer T1 are respectively connected to the output of the three-stage, two-stage, and one-stage triode voltage regulating circuits Terminal 5 of the step-up transformer T1 is connected to the ground through the capacitor C1. According to the transformation ratio formula N1 / N2=U1 / U2, step-by-step voltage regulation is adopted to control the conduction of different levels of transistors in the circuit to change the primary coil of the step-up transformer T1. The number of turns, and then change the voltage of the secon...

Embodiment 3

[0020] Embodiment 3. On the basis of Embodiment 1, the temperature signal acquisition circuit is used to detect the temperature signal in the thermal insulation water tank in real time and convert it into an electrical signal. After the temperature difference is obtained by the subtractor, it is proportionally amplified, and the diode is clamped at 0~+5V. , including the temperature sensor P1 of the model TPS35, which has a wide measuring range of -50°C to +150°C. As for the direct contact with water in the heat preservation water tank, the precision is high. Pin 1 of the temperature sensor P1 is connected to the power supply +5V, and the temperature sensor P1 Pin 2 converts the sensed water temperature information into voltage information UI1 of -0.5V-1.5V, divides the voltage through resistors R8 and R9, and then sends it to the non-inverting input terminal of the operational amplifier AR1. Pin 4 of the operational amplifier AR1 is connected to the ground. The pin 7 of the am...

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Abstract

The invention discloses a voltage control circuit of an air energy water heater. A temperature signal acquiring circuit acquires water temperature signals in an insulation water tank of the air energy water heater; the amplified temperature difference proportion and 0-+5 V diode clamp are obtained through the water temperature signals by a subtractor; and according to the magnitudes of the water temperature signals after clamp, a first-level triode to a fourth-level triode in the voltage control circuit can be conducted and disconnected level by level to change the voltage change ratio of a boosting transformer in a coupling voltage circuit, so that the control of output voltage is realized, and the problems of difficult constant-temperature control, inconvenience in use, low safety and high constant-temperature adjustment cost of a frequency converter in traditional relay-controlling heating are solved. A temperature sensor acquires the temperature signals in the water tank in real time; an operation amplifier performs the subtraction; temperature difference information is output to trigger conduction or disconnection of the corresponding first-level to fourth-level triodes to change the voltage change ratio of the boosting transformer, so that the control over output voltage is realized, the power of a compressor is adjusted, and the water temperature in the insulation water tank is in a constant-temperature state; and the voltage control circuit of the air energy water heater is simple, practical and low in cost.

Description

technical field [0001] The invention belongs to the technical field of air energy water heaters, in particular to an air energy water heater voltage regulation circuit. Background technique [0002] Air-energy water heaters are widely used by many companies and families due to their advantages of energy saving, environmental protection, and no pollution. Air-energy water heaters are mainly composed of a circulation system and refrigerant. Flowing through the heat absorber to absorb the low-temperature heat in the surrounding air, after absorbing the heat and evaporating, it will be transformed from a liquid state to a gaseous state, and the gaseous refrigerant will be compressed and boosted to convert the low-temperature heat absorbed in the air into high-temperature heat, and the heat will be released when flowing through the heat exchanger. The cold water is heated, and the refrigerant after heat release is converted from gaseous to liquid, and then enters the heat absorbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2007
Inventor 邹彦双邹彦丽
Owner 佛山市顺德区约利节能设备有限公司
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