Alternating current and photovoltaic direct current two-purpose refrigerator

Abstract

Provided is an alternating current and photovoltaic direct current two-purpose refrigerator. The alternating current and photovoltaic direct current two-purpose refrigerator is composed of a basic refrigerator device, an alternating current and direct current two-purpose power device and an alternating current and direct current two-purpose power supply conversion control device. The basic refrigerator device is composed of six main portions including an automobile air conditioner compressor, a condenser, an evaporator, a liquid storage dryer, a capillary tube and a defrosting device. The alternating current and direct current two-purpose power device is composed of a series excited machine, a belt wheel, a belt, a tension wheel and an electromagnetic clutch on the compressor. The alternating current and direct current two-purpose power supply conversion control device is composed of an alternating current and direct current two-purpose output 12V switch power supply, an alternating current and direct current power supply conversion switch blade and a direct current electro-inhibitor arc switch blade, and is also divided into a 220V high-voltage part and a 12V low-voltage part. The refrigerator adopts the automobile air conditioner compressor, and is small in size, high in efficiency and resistant to vibration; through the photovoltaic direct current, arc starting is avoided; and common alternating current can also be applied, and energy saving and convenience are achieved. The alternating current and photovoltaic direct current two-purpose refrigerator is particularly suitable for being applied to houses with direct photovoltaic power generation achieved.

Description

Technical field [0001] The invention relates to a household appliance, in particular to an AC and DC dual-purpose refrigerator. Background technique [0002] At present, known household refrigerators are all powered by alternating current, which is not safe and cannot be used in areas without electricity. System" (ZL201220245052.1) is now abbreviated as "direct-use photovoltaic power generation" DC voltage 220V. At present, there is no AC-DC dual-purpose refrigerator on the market. The development of AC-DC dual-purpose refrigerator is the need of the development of the situation. The air conditioner compressor on the car is driven by the engine. The air conditioner compressor on the car is small in size and high in efficiency, and it is not afraid of vibration. If the air conditioner compressor in the car is powered by 220V photovoltaic DC power to the DC motor, the DC motor To drive the compressor on the car, but in the test, it was found that the air-conditioning compress...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of contact burnout and adhesion caused by the arcing of the switch when using a high-power DC motor in the current automotive air-conditioning compressor, this problem was solved with a switch knife. In order to find an AC and DC dual-purpose motor, after many research tests It is found that in the existing AC motor, the rotor is a coil, and the stator is a permanent magnet and an excitation. When using 220V DC, although some parts are available, it is more troublesome. Finally, a single-phase series motor using AC is determined. Single-phase The series excitation motor is an AC and DC dual-purpose motor with different power sizes, suitable for large and small refrigerators

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