Multi-split air conditioning system

Abstract

The invention discloses a multi-split air-conditioning system which comprises an air-conditioning outdoor unit and an air-conditioning indoor unit, the system comprises four parts, namely the air-conditioning outdoor unit, the air-conditioning indoor unit, an air-conditioning control system and a communication loop, and the air-conditioning outdoor unit, the air-conditioning indoor unit, the air-conditioning control system and the communication loop are connected in sequence. The air conditioner outdoor unit is responsible for discharging heat from the indoor space and discharging the heat into outdoor air, the air conditioner indoor unit is responsible for conveying cold air into the indoor space and discharging hot air in the indoor space, and the communicating loop is responsible for connecting the air conditioner outdoor unit and the air conditioner indoor unit together. The air conditioner control system is responsible for controlling the operation state of the air conditioner. According to the multi-split air conditioning system, when the air conditioning system is used, the optimal starting mode can be found no matter which mode the air conditioner is in, through adjustment of the control system and assumed multiple connecting loops, and therefore the response speed of the air conditioner is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a multi-connected air conditioning system. Background Art

[0002] A multi-split air conditioning system is a multi-split system, generally one outdoor unit can be connected to multiple indoor units, and the number of indoor units is greater than or equal to two. Its refrigeration system is that one outdoor unit can transport refrigerant liquid to several indoor units through pipelines, and by controlling the refrigerant circulation volume of the compressor and the refrigerant flow entering each indoor heat exchanger, the indoor cooling and heating load requirements can be met in a timely manner.

[0003] Each indoor unit and outdoor unit in a multi-split air-conditioning system is equipped with an identification code that can indicate their respective identities. During the operation of the multi-split air-conditioning system, the identification code can be used to accurately obtain the operating data of each indoor unit and outdoor unit and send operating instructions to each indoor unit and outdoor unit.

[0004] The existing certification schemes have achieved certain results, but there are still some shortcomings. For example, although different gear modes are set during the operation of the air conditioner, the temperature and humidity are different throughout the year. Correspondingly, the same mode gives people completely different feelings in different seasons. And when the indoor unit is started, because it is a one-to-many operation mode, most of the indoor units are connected to the same refrigerant circuit, so during the operation, the indoor units in the same refrigerant circuit can only choose the same mode to start, or simply not start, and the response speed is not fast enough, making it difficult to meet the needs of different users.

[0005] Therefore, in order to solve the above problems, we propose a multi-split air conditioning system that can conveniently solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a multi-split air-conditioning system to solve the problem proposed in the above-mentioned background technology that it cannot be adjusted according to the season of use, and the indoor units in the same refrigerant circuit can only choose the same mode to start, or simply not start, and the response speed is not fast enough, making it difficult to meet the needs of different users.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-split air-conditioning system, comprising an air-conditioning outdoor unit and an air-conditioning indoor unit, the system comprising four parts: an air-conditioning outdoor unit, an air-conditioning indoor unit, an air-conditioning control system, and a connecting loop, and the air-conditioning outdoor unit, the air-conditioning indoor unit, the air-conditioning control system, and the connecting loop are connected in sequence, the air-conditioning outdoor unit is responsible for discharging heat from the room and discharging it into the outdoor air, the air-conditioning indoor unit is responsible for transmitting cold air to the room and discharging hot air from the room, the connecting loop is responsible for connecting the air-conditioning outdoor unit with the air-conditioning indoor unit, and the air-conditioning control system is responsible for controlling the operating state of the air conditioner.

[0008] Preferably, there are at least two air-conditioning outdoor units in the air-conditioning online system, including a first air-conditioning outdoor unit and a second air-conditioning outdoor unit.

[0009] Preferably, there are at least two air-conditioning indoor units in the air-conditioning online system, including a first air-conditioning indoor unit, a second air-conditioning indoor unit, and a third air-conditioning indoor unit.

[0010] Preferably, the air conditioning control system consists of three parts: a control unit, a sensing unit and a comparison unit.

[0011] Preferably, the connecting circuit includes a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, and a sixth circuit.

[0012] According to the multi-split air conditioning system of claim 5, it is characterized in that the connecting circuit respectively connects the first air conditioning outdoor unit, the second air conditioning outdoor unit with the first air conditioning indoor unit, the second air conditioning indoor unit, and the third air conditioning indoor unit.

[0013] Compared with the prior art, the invention has the following beneficial effects: the multi-split air conditioning system,

[0014] 1. When using the air conditioning system, through the adjustment of the control system and the assumption of multiple connection circuits, the optimal startup method can be found regardless of the air conditioning mode, thereby improving the response speed of the air conditioning;

[0015] 2. The air conditioning control system will sense the current ambient temperature of the air conditioner indoor unit and compare it with the information obtained in the current season, so that the air conditioner can automatically adjust the air outlet temperature according to the current environment, so that the air conditioner can adapt to a variety of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an air conditioning system implementation scheme of the present invention;

[0017] Figure 2It is a schematic diagram of the flow chart structure of the method for controlling the temperature of the air-conditioning system according to the seasons of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the air conditioning control system of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-3 The present invention provides a technical solution: a multi-split air conditioning system, including an air conditioning outdoor unit and an air conditioning indoor unit, the system includes four parts: the air conditioning outdoor unit, the air conditioning indoor unit, the air conditioning control system, and a connecting loop, and the air conditioning outdoor unit, the air conditioning indoor unit, the air conditioning control system, and the connecting loop are connected in sequence, the air conditioning outdoor unit is responsible for discharging heat from the room and discharging it into the outdoor air, the air conditioning indoor unit is responsible for transmitting cold air to the room and discharging hot air from the room, the connecting loop is responsible for connecting the air conditioning outdoor unit with the air conditioning indoor unit, and the air conditioning control system is responsible for controlling the operating state of the air conditioner;

[0021] There must be at least two air-conditioning outdoor units in the air-conditioning online system, including a first air-conditioning outdoor unit and a second air-conditioning outdoor unit, to ensure that the air-conditioning indoor unit can be connected to the two air-conditioning outdoor units when in use, and can run cooling or heating mode at the same time;

[0022] There must be at least two air-conditioning indoor units in the air-conditioning online system, including a first air-conditioning indoor unit, a second air-conditioning indoor unit, and a third air-conditioning indoor unit, which is conducive to heating or cooling multiple locations at the same time;

[0023] The air conditioning control system consists of three parts: a control unit, a sensing unit and a comparison unit. The air conditioning control system can sense the current ambient temperature of the air conditioner indoor unit and compare it with the information obtained in the current season. The operation state of the electronic expansion valve is controlled according to the information obtained to adjust the air outlet temperature of the air conditioner. The comparison unit can also connect the air conditioner indoor units in the same mode to the same circuit by comparing the start-up mode of the air conditioner, thereby ensuring its power usage.

[0024] The connected circuits include a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, and a sixth circuit, which is beneficial to the assumption of multiple connected circuits, so that no matter what mode the air conditioner is in, the optimal starting method can be found;

[0025] The connecting circuit respectively connects the first air-conditioning outdoor unit, the second air-conditioning outdoor unit with the first air-conditioning indoor unit, the second air-conditioning indoor unit, and the third air-conditioning indoor unit, which is conducive to connecting the two air-conditioning outdoor units with the air-conditioning indoor units through different connecting circuits, and can ensure that different air-conditioning indoor units can operate cooling or heating mode at the same time according to the connection with different air-conditioning outdoor units.

[0026] How it works: See Figure 1-3 In the implementation manner of the above-mentioned multi-split air-conditioning system, the first air-conditioning outdoor unit, the first air-conditioning indoor unit and the second air-conditioning indoor unit are connected together by the first circuit, the first air-conditioning outdoor unit, the second air-conditioning indoor unit and the third air-conditioning indoor unit are connected together by the second circuit, the first air-conditioning outdoor unit, the first air-conditioning indoor unit and the third air-conditioning indoor unit are connected together by the third circuit, the second air-conditioning outdoor unit, the second air-conditioning indoor unit and the third air-conditioning indoor unit are connected together by the fourth circuit, the second air-conditioning outdoor unit, the second air-conditioning indoor unit and the third air-conditioning indoor unit are connected together by the fifth circuit, the second air-conditioning outdoor unit, the first air-conditioning indoor unit and the second air-conditioning indoor unit are connected together by the sixth circuit, and the first circuit, the second circuit, the third circuit, the fourth circuit, the fifth circuit and the sixth circuit are all independently set up.

[0027] In this case, assuming that the user is in the room where the first air-conditioning indoor unit is located, and automatically turns on the first air-conditioning indoor unit through the controller, the air-conditioning control system will first sense the ambient temperature of the current air-conditioning indoor unit, and compare it with the information obtained in the current season, and control the operating state of the electronic expansion valve according to the obtained information to adjust the air outlet temperature of the air conditioner. When the indoor temperature reaches the set temperature, the operating power of the air-conditioning indoor unit decreases to maintain the preset temperature. The above is the startup situation of a single air-conditioning indoor unit;

[0028] Assuming that when the user is in the room where the first air-conditioning indoor unit is located, and other air-conditioning indoor units are in operation, the air-conditioning control system will first compare the startup mode of the air-conditioning. For example, the startup mode of the first air-conditioning indoor unit is cooling, and at this time the second air-conditioning indoor unit is connected to the first air-conditioning outdoor unit through the second circuit in cooling mode, and the third air-conditioning indoor unit is connected to the second air-conditioning outdoor unit through the fourth circuit in heating mode. The air-conditioning control system will close the second circuit and connect the first air-conditioning outdoor unit, the first air-conditioning indoor unit and the second air-conditioning indoor unit by opening the first circuit, so that the first air-conditioning indoor unit can complete cooling. Then, if the first air-conditioning indoor unit changes the mode to heating again, the connection between the first air-conditioning indoor unit and the first circuit is closed, and the second air-conditioning indoor unit connected to the first circuit is still in cooling mode, and the fifth circuit will connect the second air-conditioning outdoor unit, the first air-conditioning indoor unit and the second air-conditioning indoor unit together, so that the first air-conditioning indoor unit can complete the heating mode. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-split air conditioning system, comprising an air conditioning outdoor unit and an air conditioning indoor unit, characterized in that: The system consists of four parts: an air-conditioning outdoor unit, an air-conditioning indoor unit, an air-conditioning control system, and a connecting loop. The air-conditioning outdoor unit, the air-conditioning indoor unit, the air-conditioning control system, and the connecting loop are connected in sequence. The air-conditioning outdoor unit is responsible for discharging heat from the room and discharging it into the outdoor air. The air-conditioning indoor unit is responsible for transmitting cold air to the room and discharging hot air from the room. The connecting loop is responsible for connecting the air-conditioning outdoor unit with the air-conditioning indoor unit. The air-conditioning control system is responsible for controlling the operating status of the air conditioner.

2. A multi-split air conditioning system according to claim 1, characterized in that: There should be at least two air-conditioning outdoor units in the air-conditioning online system, including a first air-conditioning outdoor unit and a second air-conditioning outdoor unit.

3. A multi-split air conditioning system according to claim 1, characterized in that: There should be at least two air-conditioning indoor units in the air-conditioning online system, including a first air-conditioning indoor unit, a second air-conditioning indoor unit, and a third air-conditioning indoor unit.

4. A multi-split air conditioning system according to claim 1, characterized in that: The air conditioning control system consists of three parts: a control unit, a sensing unit and a comparison unit.

5. The multi-split air conditioning system according to claim 1, characterized in that: The connecting loop includes a first loop, a second loop, a third loop, a fourth loop, a fifth loop, and a sixth loop.

6. A multi-split air conditioning system according to claim 5, characterized in that: The communication circuits respectively connect the first air-conditioning outdoor unit, the second air-conditioning outdoor unit, the first air-conditioning indoor unit, the second air-conditioning indoor unit, and the third air-conditioning indoor unit.

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