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Method, device and multi-connection for reducing noise of multi-connection internal machine

A multi-connection, internal machine technology, applied in the multi-connection field, can solve problems such as noise, achieve the effect of reducing noise and improving user experience

Active Publication Date: 2021-07-16
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is the problem of noise generated by the shut-down internal unit when the multi-connected mechanism is in thermal operation

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  • Method, device and multi-connection for reducing noise of multi-connection internal machine
  • Method, device and multi-connection for reducing noise of multi-connection internal machine
  • Method, device and multi-connection for reducing noise of multi-connection internal machine

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Embodiment Construction

[0059] At present, when the multi-connection mechanism is running hot (the number of internal units is ≥ 2), the internal units that have been shut down often produce noise. The designer of the present invention found in the research that the reason for shutting down the internal unit to generate noise is that when the multi-unit machine is running in heat, for shutting down the internal unit, in order to prevent the occurrence of liquid accumulation, the electronic expansion valve of the internal unit will be opened, Ensure that the refrigerant inside the shut down internal unit is always flowing. At the same time, in order to prevent the internal refrigerant from shutting down the internal unit from carrying too much heat, the opening setting value of the electronic expansion valve of the internal unit is small, because the electronic expansion valve of the internal unit is prone to noise due to the small opening. In order to improve the above-mentioned technical problem of ...

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Abstract

Embodiments of the present invention provide a method, device and multi-connector for reducing noise of a multi-connector indoor unit, which relate to the technical field of air conditioning. The method includes: judging whether the internal fluid accumulation state of the internal machine in the shutdown state during the thermal operation of the multi-connected mechanism reaches a preset fluid accumulation state. If the liquid accumulation state reaches the preset liquid accumulation state, the electronic expansion valve of the internal unit controlling the closed internal unit is opened to drain the liquid accumulation inside the closed internal unit. It is judged whether the discharge volume of the accumulated liquid inside the internal unit in the shutdown state reaches the preset discharge volume. If the discharge volume of the effusion inside the internal unit in the shutdown state reaches the preset discharge volume, the electronic expansion valve of the internal unit controlling the internal unit in the shutdown state is closed. This method can effectively reduce the noise of the internal unit in the shutdown state when the multi-connection mechanism is running hot, and improve user experience.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular, to a method and device for reducing the noise of a multi-connected indoor unit, and a multi-connected device. Background technique [0002] Multi-split is a type of central air conditioner, commonly known as "one-to-many", which means that one outdoor unit is connected to two or more indoor units through piping. Multi-connected central air conditioners save energy, operate reliably, and have good unit adaptability. Multi-connected household central air conditioners have been favored by consumers since they came into the market. [0003] However, at present, when the multi-connection mechanism is running hot (the number of internal units is ≥ 2), the internal units that have been shut down often produce noise, which affects the user experience. Contents of the invention [0004] The problem solved by the invention is the noise generated by the shut down internal machine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/0003F24F11/32F24F11/64F24F13/24F24F140/20
CPCF24F1/0003F24F13/24F24F2013/247F24F11/32F24F11/64F24F2140/20
Inventor 朱礼晋李存永
Owner NINGBO AUX ELECTRIC