Control method of refrigerant distributor of air-conditioner unit
A technology of refrigerant distribution and control method, which is applied to the control of refrigerant distributors of air-conditioning units and the field of air-conditioning units, can solve the problems of non-expansion, waste of communication resources, product types, and difficult connection and use of products, so as to shorten the research and development cycle and reduce technology development. cost, the effect of ensuring stability
Active Publication Date: 2012-10-10
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
However, the existing refrigerant distributors only support a single communication mode and do not support mixed connections. The algorithm requires a single input parameter and cannot be expanded, which limits the cost control and adaptability of the entire unit.
[0004] Under the current situation of fierce competition in the air-conditioning industry, products such as refrigerant distributors only support a single communication mode, making it difficult to connect and use products of different companies, and unable to carry out strategic cooperation and technological innovation; "Strong Electric Communication" and "Bus communication" has its own advantages in residential air conditioners and commercial air conditioners, but it is difficult to cooperate with each other when forming an air conditioner unit. Even between different products of the same company, communication resources will be wasted and product types overlap; at the same time, there will be Causes repeated settings and waste of resources for production tooling, tools and off-site debugging tooling and tools
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[0020] The method for controlling the refrigerant distributor of an air-conditioning unit in this embodiment includes the following steps:
[0021] (1) Default hardware connection:
[0022] Set the type and serial number of the connected indoor unit on the DIP switch in the electric control box of the refrigerant distributor, and perform hardware connection according to the serial number, such as figure 1 As shown, the data input end of the indoor unit using strong current communication is connected to the external interrupt port, while the data input end of the indoor unit using bus communication is connected to the standard SCI port;
[0023] (2) Judging the access status: judge whether to access the indoor unit and access address using the strong current communication mode through the trigger of the external interrupt port. The communication mode of the strong current communication is shown in Table 1; judge through the interruption of the standard SCI port Whether to acce...
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The invention provides a control method of a refrigerant distributor of an air-conditioner unit, comprising the following steps of: (1) presetting hardware connection; (2) judging the access state; (3) converting protocol codes; (4) calculating analysis parameters; and (5) starting control drive. The control method provided by the invention has the advantages that the refrigerant distributor can be connected with an air-conditioner indoor unit with two communication modes such as strong-current communication and bus communication; after being matched with factors in the other aspects, a household air conditioner and a commercial air conditioner can be interactively connected and are controlled for use, so that repeated setting and resource waste of production toolings, tools and offsite debugging toolings and tools are avoided; and simultaneously, the types of products are expanded, the cost for technical development is also reduced and the period for research and development is shortened.
Description
Technical field [0001] The present invention involves a air -conditioning unit, which specifically involves the control method of air -conditioning units of refrigerant distributors, which belongs to the field of air -conditioning production technology. Background technique [0002] At present, in the home air conditioner, the common communication mode between the indoor and the outdoor unit is "strong power communication", that is, the power line from the power supply "fire line" will become a signal line and the power supply "zero line" to form a communication signal transmission; In commercial air conditioners, the common communication mode between indoor and outdoor machines is "bus communication", that is, through the proprietary two lines (weak electricity), communication signals are passed. [0003] In multi -connected air -conditioning units or home unit units, components such as electronic expansion valve or throwing capillary are mostly allocated for refrigerant allocat...
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IPC IPC(8): F24F11/00F24F11/02
Inventor 刘洋邢志敏姜志成陈林李文阳
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST