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CN-118242744-B - Air supply control method and device for multi-room air supply scene and intelligent air conditioner

CN118242744BCN 118242744 BCN118242744 BCN 118242744BCN-118242744-B

Abstract

The application relates to the technical field of pipeline air conditioners and discloses an air supply control method for a multi-room air supply scene. The air supply control method of the multi-room air supply scene comprises the steps of maintaining the rotating speed of a fan unchanged, increasing the opening of a first air valve from the first opening to the noise reduction opening, increasing the operating frequency of a compressor according to the cold flow rate/heat flow rate flowing to a second room from a second air outlet, locking the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan, and controlling the opening of the first air valve to gradually decrease from the noise reduction opening. By adopting the air supply control method of the multi-room air supply scene, after the air outlet noise in the room with the noise reduction requirement is reduced, the adverse effect on the temperature control process in other rooms without the noise reduction requirement can be reduced as much as possible in a mode of lower energy consumption. The application also discloses an air supply control device of the multi-room air supply scene and an intelligent air conditioner.

Inventors

  • ZHAO KAIQIANG
  • DU CHAO

Assignees

  • 青岛海尔空调器有限总公司
  • 青岛海尔空调电子有限公司
  • 青岛海尔智能技术研发有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260512
Application Date
20240422

Claims (10)

  1. 1. A method for controlling the air supply of a multi-room air supply scene is characterized in that a plurality of rooms are supplied with cold energy/heat energy by an air conditioner compressor, the multi-rooms are supplied with air by a fan, the fan supplies air to each room through air supply pipelines, an air outlet is arranged at the communication position of each room and each air supply pipeline, each air supply pipeline is provided with an independent air valve, the first room has noise reduction requirement, and the second room has no noise reduction requirement, and the air supply control method comprises the following steps: maintaining the rotation speed of the fan unchanged, and increasing the opening of the first air valve from the first opening to the noise reduction opening to enable the air outlet noise of the first air outlet of the first room to be smaller than a noise threshold; the operation frequency of the compressor is increased according to the cold flow rate/heat flow rate flowing from the second air outlet to the second room, so that the cold flow rate/heat flow rate flowing to the second room is kept stable after the opening degree of the first air valve is increased; locking the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan; the opening of the first air valve is controlled to gradually decrease from the noise reduction opening, and the opening of the first air valve is made to approach to the target opening on the premise that the air outlet noise of the first air outlet is smaller than or equal to the noise threshold value; The target opening degree can enable the cold flow rate/heat flow rate of the first air outlet flowing to the first room to be consistent with the cold flow rate/heat flow rate flowing to the first room when the first air valve is at the first opening degree; the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan is locked, and the method comprises the following steps: after the opening degree of the first air valve is increased from the first opening degree to the noise reduction opening degree, changing the corresponding relation between the total opening degree of the air valve and the rotating speed of the fan from the first corresponding relation to the second corresponding relation; And when the opening degree of the air valve is adjusted in the subsequent step, the rotating speed of the fan is adaptively adjusted according to the second corresponding relation.
  2. 2. The method of controlling air supply according to claim 1, wherein, The method for improving the opening degree of the first air valve from the first opening degree to the noise reduction opening degree comprises the steps of directly switching the opening degree of the first air valve from the first opening degree to the noise reduction opening degree, or gradually improving the opening degree of the first air valve from the first opening degree to the noise reduction opening degree; the air-out noise of the first room is smaller than the noise threshold, and the method comprises the steps that the air-out noise of the first room is smaller than the noise threshold, and the noise difference value between the noise threshold and the air-out noise is larger than or equal to the difference value threshold.
  3. 3. The air supply control method according to claim 1, wherein increasing the operating frequency of the compressor according to the flow rate of cold/heat from the second air outlet to the second room comprises: obtaining a second historical air outlet quantity and a second historical air outlet temperature of a second air outlet of a second room at the moment of changing the opening degree of the first air valve; Determining a second target cold flow/heat flow to the second room according to the second historical air output and the second historical air output temperature; In the process of increasing the opening degree of the first air valve, determining a second target air outlet temperature of a second room according to the second actual air outlet quantity of the second air outlet and the second target cold flow/heat flow; and increasing the operating frequency of the compressor according to the second target air outlet temperature.
  4. 4. The air supply control method according to claim 1, wherein the target opening degree is determined by: Obtaining a first historical air outlet quantity and a first historical air outlet temperature of a first air outlet at the moment of opening change of a first air valve; Determining a first target cold flow/heat flow according to the first historical air output and the first historical air output temperature; Obtaining a first expected air outlet temperature positively related to the real-time operating frequency, or obtaining a first real-time air outlet temperature of the first air outlet; and determining the target opening according to the first target cold flow rate/heat flow rate and the first expected air outlet temperature, or determining the target opening according to the first target cold flow rate/heat flow rate and the first real-time air outlet temperature.
  5. 5. The air supply control method according to claim 1, wherein there is a positive correlation between the total opening of the air valves of all rooms and the fan rotation speed, the positive correlation being specifically set by an arrangement model of the actual air supply duct and an actual fan model.
  6. 6. The air supply control method according to any one of claims 1 to 5, characterized by further comprising: when the opening of the first air valve reaches the maximum opening and the air outlet noise is greater than or equal to the noise threshold value, locking the corresponding relation between the total opening of the air valve and the rotating speed of the fan; And adjusting the opening of the first air valve from the maximum opening to the first opening, maintaining the rotating speed of the fan again, increasing the opening of the first air valve from the first opening to the noise reduction opening, and increasing the operating frequency of the compressor according to the cold flow rate/heat flow rate flowing to the second room from the second air outlet.
  7. 7. The air supply control method according to any one of claims 1 to 5, wherein the first opening degree is positively correlated with a first temperature difference between an indoor temperature of the first room and the set temperature.
  8. 8. An air supply control device of an air supply scene of multiple rooms is characterized in that the multiple rooms are supplied with cold energy/heat energy by an air conditioner compressor, the multiple rooms are supplied with air by a fan, the fan supplies air to the rooms through air supply pipelines, an air outlet is arranged at the communication position of each room and each air supply pipeline, each air supply pipeline is provided with an independent air valve, the first room has noise reduction requirements, and the second room has no noise reduction requirements, and the air supply control device comprises: The first control module is used for maintaining the rotation speed of the fan unchanged, and increasing the opening of the first air valve from the first opening to the noise reduction opening so that the air outlet noise of the first air outlet of the first room is smaller than a noise threshold value; The second control module is used for improving the operation frequency of the compressor according to the cold flow rate/heat flow rate flowing to the second room from the second air outlet so as to maintain the cold flow rate/heat flow rate flowing to the second room stable after the opening degree of the first air valve is improved; the first locking module is used for locking the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan; the third control module is used for controlling the opening of the first air valve to gradually decrease from the noise reduction opening, and enabling the opening of the first air valve to approach the target opening on the premise that the air outlet noise of the first air outlet is smaller than or equal to the noise threshold value; The target opening degree can enable the cold flow rate/heat flow rate of the first air outlet flowing to the first room to be consistent with the cold flow rate/heat flow rate flowing to the first room when the first air valve is at the first opening degree; the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan is locked, and the method comprises the following steps: after the opening degree of the first air valve is increased from the first opening degree to the noise reduction opening degree, changing the corresponding relation between the total opening degree of the air valve and the rotating speed of the fan from the first corresponding relation to the second corresponding relation; And when the opening degree of the air valve is adjusted in the subsequent step, the rotating speed of the fan is adaptively adjusted according to the second corresponding relation.
  9. 9. A multi-room air-blowing scene air-blowing control apparatus comprising a processor and a memory storing program instructions, wherein the processor is configured, when executing the program instructions, to perform the multi-room air-blowing scene air-blowing control method of any of claims 1 to 7.
  10. 10. An intelligent air conditioner, characterized by comprising: An air conditioner body; the air supply control device for the multi-room air supply scene according to claim 8 or 9, mounted on an air conditioner body.

Description

Air supply control method and device for multi-room air supply scene and intelligent air conditioner Technical Field The application relates to the technical field of pipeline air conditioners, in particular to an air supply control method, an air supply control device and an intelligent air conditioner for a multi-room air supply scene. Background At present, in north america such as the united states and canada, a duct type split air conditioner is used to cool or heat the room. The pipeline split air conditioner consists of outdoor unit, indoor unit and connecting pipes, and the indoor unit produces cold/hot air via refrigerating and heating mode, and the cold/hot air enters the main air supply pipeline, branches and air supply pipeline, and enters each room via the air inlet in the tail end of the branch air supply pipeline, and has air return port with corresponding air return pipeline branch. In a working scene or a learning scene, a user usually has a noise reduction requirement, and for air supply equipment such as an air conditioner, a fresh air fan, an air purifier and the like, the noise reduction mode is to reduce the rotating speed of the fan and the air outlet speed. In the process of implementing the embodiment of the application, the related art is found to have at least the following problems: when the air speed of one room is reduced according to the prior art in order to reduce the air outlet noise, adverse effects can be generated on the temperature control process in other rooms without noise reduction requirements, and when the rotating speed of a fan in an air conditioner is directly reduced and the running frequency of a compressor is increased, the phenomenon that the rotating speed of the fan is too low and the frequency of the compressor is too high easily occurs, which easily causes untimely heat exchange and waste of electric energy. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows. The embodiment of the application provides an air supply control method for a multi-room air supply scene, which is used for reducing the air outlet noise in a room with noise reduction requirements and reducing adverse effects on temperature control processes in other rooms without noise reduction requirements as much as possible in a mode of lower energy consumption. In some embodiments, the plurality of rooms are provided with cold energy/heat by an air conditioner compressor, the plurality of rooms are supplied with air by a fan, the fan supplies air to each room through an air supply pipeline, an air outlet is arranged at the communication part of each room and the air supply pipeline, each air supply pipeline is provided with an independent air valve, the first room has noise reduction requirement, and the second room has no noise reduction requirement, the air supply control method of the multi-room air supply scene comprises the following steps: maintaining the rotation speed of the fan unchanged, and increasing the opening of the first air valve from the first opening to the noise reduction opening to enable the air outlet noise of the first air outlet of the first room to be smaller than a noise threshold; the operation frequency of the compressor is increased according to the cold flow rate/heat flow rate flowing from the second air outlet to the second room, so that the cold flow rate/heat flow rate flowing to the second room is kept stable after the opening degree of the first air valve is increased; locking the corresponding relation between the total opening of the air valves of all rooms and the rotating speed of the fan; the opening of the first air valve is controlled to gradually decrease from the noise reduction opening, and the opening of the first air valve is made to approach to the target opening on the premise that the air outlet noise of the first air outlet is smaller than or equal to the noise threshold value; the target opening degree can enable the cooling capacity flow rate/heat capacity flow rate of the first air outlet flowing to the first room to be identical with the cooling capacity flow rate/heat capacity flow rate flowing to the first room when the first air valve is at the first opening degree. The air supply control method for the multi-room air supply scene provided by the embodiment of the application can realize the following technical effects: after the openi