Control method of refrigerant distributor of air-conditioner unit
A technology of refrigerant distribution and control method, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of difficult connection and use of products, non-expansion, waste of communication resources, product types, etc., to ensure stability The effect of shortening the R&D cycle and reducing the cost of technology development
Active Publication Date: 2014-06-04
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
Method used
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[0020] The control method of the refrigerant distributor of the air conditioning unit of this embodiment includes the following steps:
[0021] (1) Preset hardware connection:
[0022] Set the type and number of the connected indoor unit on the dial switch in the electric control box of the refrigerant distributor, and connect the hardware according to the number, such as figure 1 As shown, the data input end of the indoor unit using the strong current communication mode is connected to the external interrupt port, and the data input end of the indoor unit using the bus communication mode is connected to the standard SCI port;
[0023] (2) Judging the access status: judging whether to connect to the indoor unit using the high-voltage communication method and the access address through the trigger of the external interrupt port. The communication method of the high-voltage communication is shown in Table 1; the interruption judgment by the standard SCI port Whether to access the indoo...
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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 invention relates to an air-conditioning unit, in particular to a control method for a refrigerant distributor of the air-conditioning unit, and belongs to the technical field of air-conditioning production. Background technique [0002] At present, in household air conditioners, the common communication mode between the indoor unit and the outdoor unit is "strong electric communication", that is, the "hot wire" of the power supply is divided into a signal line and the "zero line" of the power supply forms a loop for communication signal transmission. ; In commercial air conditioners, the common communication mode between the indoor unit and the outdoor unit is "bus communication", that is, the communication signal is transmitted through two proprietary wires (weak current). [0003] In multi-connected air conditioner units or household unit units, components such as electronic expansion valves or throttling capillary tubes are often used to distri...
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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