Refrigerator Using Linear Compressor and Its Control Method

Abstract

The invention discloses a refrigerator control method with a linear compressor adopted. The method comprises the steps that whether the refrigerator enters the start state from the stop state or not is judged, if yes, a start mode is called, and the linear compressor is controlled to run for preset time under the preset input power, wherein the preset input power is larger than the normal start input power matched with the linear compressor and smaller than or equal to the maximum input power of the linear compressor. When the refrigerator enters the start state from the stop state, the input power exceeding the conventional power is provided for the linear compressor, the stroke of a piston of the linear compressor is rapidly changed, the vibration of the linear compressor and the resonance of the refrigerator do not intersect for a long time, and the high-frequency noise, generated at the initial start period, of the refrigerator can be eliminated.

Description

technical field [0001] The invention relates to the technical field of refrigerator noise reduction, in particular to a refrigerator using a linear compressor and a control method thereof. Background technique [0002] Linear compressors are more and more used in the refrigerator manufacturing industry due to their advantages of small size, self-lubrication, and high precision. [0003] The working noise will be generated when the linear compressor does work to compress the refrigerant, especially when the refrigerator enters the starting state from a stop state. At this time, the refrigerator is in a bad working condition (the evaporation and condensation temperature is high). At this time, the piston stroke of the linear compressor is large. All the mechanical parts inside the linear compressor are directly or indirectly driven by the piston to be in motion. The linear compressor and the refrigerator are prone to resonance and produce sharp high-frequency noise. Users will...

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Problems solved by technology

[0003] When the linear compressor does work to compress the refrigerant, it will produce working noise, especially when the refrigerator enters the starting state from a stop state. At this time, the working condition of the refrigerator is relatively bad (the evaporation and condensation temperature is high), and the piston stroke of the linear compressor is large at this time. All the mechanical parts inside the linear compressor are directly or indirectly driven by the piston and are in motion. The linear compressor and the refrigerator are prone to resonance and produce sharp high-frequency noise. Users will complain when they power on for the first time.

[0004] In the prior art, the linear compressor is controlled by the computer board of the refrigerator. When the refrigerator enters the starting state from the stop state, the refrigerator is started with a certain normal power, that is, the computer board provides a normal start-up input power for the linear compressor, and the linear compressor The piston stroke changes slowly when the input power is normally started. The vibration of the linear compressor tends to intersect with the resonance zone of the refrigerator for a long time. When the vibration frequency of the linear compressor is in the resonance zone of the refrigerator for a long time, it is easy to drive the refrigerator to start high frequency noise

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