Differential pressure balancing method and device for multi-split air conditioner and multi-split air conditioner

A multi-connected air-conditioning, differential pressure technology, applied in air-conditioning systems, heating methods, mechanical equipment, etc., can solve the problems of complicated multi-connected air-conditioning pipelines, low production efficiency, and high cost

Active Publication Date: 2021-06-18
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is that the existing multi-connected air-conditioning pipeline is complicated, the production efficiency is low, and the cost is high

Method used

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  • Differential pressure balancing method and device for multi-split air conditioner and multi-split air conditioner
  • Differential pressure balancing method and device for multi-split air conditioner and multi-split air conditioner
  • Differential pressure balancing method and device for multi-split air conditioner and multi-split air conditioner

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no. 2 example

[0084] An embodiment of the present invention provides a pressure difference balancing method for a multi-connected air conditioner, which can be used to quickly balance the pressure difference after the multi-connected air conditioner 10 in the first embodiment is shut down.

[0085] Please refer to Figure 5 , the multi-connected air conditioner differential pressure balancing method includes the following steps:

[0086] Step S100: Receive a shutdown instruction. In this embodiment, the shutdown command is sent by the user through the remote control of the multi-split air conditioner 10 or the human-computer interaction panel, and after being received by the controller 100 of the indoor unit 300, it is forwarded to the controller 100 of the outdoor unit 200 for the outdoor unit 200 The controller 100 receives. In other embodiments, the controller 100 of the outdoor unit 200 can also directly receive the shutdown command sent by the user.

[0087] After the controller 100...

no. 3 example

[0128] Please refer to Figure 11 , the embodiment of the present invention provides a multi-connected air conditioner differential pressure balancing device 500, which can be used in the controller 100 of the outdoor unit 200 of the multi-connected air conditioner 10 in the first embodiment to control the The multi-connected air conditioner 10 executes the pressure difference balancing method of the multi-connected air conditioner in the second embodiment.

[0129] The multi-connected air conditioner differential pressure balancing device 500 includes a receiving module 510 , a control module 520 and a reset module 530 .

[0130] Wherein, the receiving module 510 is used for receiving a shutdown instruction. In this embodiment, the receiving module 510 is configured to execute step S100.

[0131] The control module 520 is used to control the opening degree of the electronic expansion valve 400 of the multi-connected air conditioner 10 according to the operating conditions o...

no. 4 example

[0135] An embodiment of the present invention provides a computer-readable storage medium, which stores a computer-readable program (that is, the multi-connected air-conditioning differential pressure balancing device 500 in the third embodiment), when the computer-readable program is executed by a processor, Realize the multi-connected air conditioner pressure difference balancing method in the second embodiment.

[0136] It should be noted that the computer-readable medium may include: any entity or device capable of carrying computer program codes, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory 101, read-only memory 101 (ROM, Read- Only Memory), random access memory 101 (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, software distribution medium, etc.

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Abstract

The embodiment of the invention provides a differential pressure balancing method and device for a multi-split air conditioner and the multi-split air conditioner, and belongs to the technical field of air conditioners. The differential pressure balancing method comprises the following two steps that a shutdown instruction is received; and the opening degree of an electronic expansion valve of the multi-split air conditioner is controlled according to the operation condition of the multi-split air conditioner before the shutdown instruction is received, so that the differential pressure balancing speed after the multi-split air conditioner is shut down is increased. The multi-split air conditioner comprises an outdoor unit and multiple indoor units, the outdoor unit and each indoor unit are each provided with a controller and an electronic expansion valve communicating with the controller, and a differential pressure balancing device for the multi-split air conditioner is arranged in the controller of the outdoor unit or any indoor unit, which is used for controlling the multi-split air conditioner to execute the differential pressure balancing method for the multi-split air conditioner. According to the multi-split air conditioner and the differential pressure balancing method and device thereof, the pipeline structure of the multi-split air conditioner can be simplified, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a differential pressure balancing method for a multi-connected air conditioner, a differential pressure balancing device for a multi-connected air conditioner, and a multi-connected air conditioner. Background technique [0002] After the multi-split air conditioner is stopped, the refrigerant pressure difference between the outdoor unit and the indoor unit needs to be balanced before it can be restarted, otherwise the compressor will fail to start. Especially in an environment with a large temperature difference between indoor and outdoor, after the multi-split air conditioner stops running, the refrigerant pressure difference balance between the outdoor unit and the indoor unit will be slow, and the compressor will not only have insufficient torque to start, but will also increase the wear of the multi-split air conditioner components. , reducing the reliabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0003F24F11/30F24F11/61F24F11/64F24F11/84F24F11/88F24F140/12
CPCF24F1/0003F24F11/30F24F11/61F24F11/64F24F11/84F24F11/88F24F2140/12
Inventor 邓赛峰刘合心陈华张稳
Owner NINGBO AUX ELECTRIC
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