CN-122015267-A - Air conditioner

Abstract

The invention discloses an air conditioner, which is characterized in that outdoor environment temperature and indoor unit return air temperature are obtained, sensible heat load of an indoor unit is determined according to the outdoor environment temperature and the indoor unit return air temperature, air outlet temperature of the indoor unit is determined according to the sensible heat load of the indoor unit, air quantity of the indoor unit and the indoor unit return air temperature, the determined air outlet temperature of the indoor unit is taken as target temperature, and the running state of the air conditioner is controlled according to the target temperature. Therefore, the air conditioner can predict the air outlet temperature meeting the indoor load demand according to the indoor and outdoor environment temperature and the indoor machine air quantity so as to save energy to the greatest extent while meeting the comfort temperature of users.

Inventors

• GAO YU
• YOSHINOBU HAMADA
• DU XUEMIN

Assignees

• 青岛海信日立空调系统有限公司

Dates

Publication Date

20260512

Application Date

20241111

Claims (10)

1. 1. An air conditioner, comprising: the outdoor environment temperature detection module is used for detecting the outdoor environment temperature; The indoor unit return air temperature detection module is used for detecting the indoor unit return air temperature; the air conditioner is characterized by further comprising: The indoor unit air volume acquisition module is used for acquiring the indoor unit air volume; the control module is configured to determine the sensible heat load of the indoor unit according to the outdoor environment temperature and the return air temperature of the indoor unit; the control module is configured to determine the indoor unit air outlet temperature according to the sensible heat load of the indoor unit, the air quantity of the indoor unit and the air return temperature of the indoor unit, and take the determined indoor unit air outlet temperature as a target temperature; The control module is configured to control an operating state of the air conditioner according to the target temperature.
2. 2. The air conditioner of claim 1, wherein the control module is configured to control an operating state of the air conditioner based on the target temperature and an indoor unit return air temperature; Or the air conditioner comprises: the indoor unit air outlet temperature detection module is used for detecting the indoor unit air outlet temperature; the control module is configured to control the running state of the air conditioner according to the target temperature and the air outlet temperature of the indoor unit.
3. 3. An air conditioner according to claim 1, wherein, When the air conditioner operates in a refrigeration mode, the air outlet temperature of the indoor unit is the sum of the quotient of the sensible heat load of the indoor unit and the air quantity of the indoor unit and the return air temperature of the indoor unit; when the air conditioner operates in a heating mode, the air outlet temperature of the indoor unit is the difference between the quotient of the sensible heat load of the indoor unit and the air quantity of the indoor unit and the return air temperature of the indoor unit.
4. 4. An air conditioner according to claim 1, wherein the air conditioner comprises: the indoor unit return air dry bulb temperature acquisition module is used for acquiring the indoor unit return air dry bulb temperature; the indoor unit return air wet bulb temperature acquisition module is used for acquiring the indoor unit return air wet bulb temperature; when the air conditioner operates in a refrigeration mode, the control module has an initial value of the temperature of the air conditioner outlet rheumatism; The control module is configured to determine the indoor unit return air enthalpy and the indoor unit return air absolute humidity according to the indoor unit return air dry bulb temperature, the indoor unit return air wet bulb temperature and the atmospheric pressure; the method comprises the steps of determining total heat treatment capacity of an indoor unit according to the difference between the air outlet enthalpy value of the indoor unit and the return air enthalpy value of the indoor unit and the air quantity of the indoor unit; configured to determine a sensible heat ratio according to the sensible heat load of the indoor unit and the total heat treatment capacity of the indoor unit; The indoor unit sensible heat ratio characteristic is determined according to the outdoor environment temperature, the indoor unit model and the indoor unit return air absolute humidity; The method comprises the steps of configuring to correct an initial value of the temperature of the rheumatism ball according to the sensible heat ratio and the sensible heat ratio characteristic of the indoor unit to obtain a corrected temperature of the rheumatism ball; And the device is configured to determine the relative humidity according to the air outlet temperature of the indoor unit and the corrected air outlet ball temperature when the air return temperature of the indoor unit reaches the target temperature, and enter a dehumidification mode when the relative humidity exceeds a relative humidity set threshold.
5. 5. The air conditioner according to claim 4, wherein the control module is configured with an iterative process of correcting an initial value of the temperature of the air-out ball, wherein the temperature of the air-out ball of the indoor unit is reduced when a difference between the sensible heat ratio and the sensible heat ratio characteristic of the indoor unit is higher than an upper limit of a set interval, and the temperature of the air-out ball of the indoor unit is increased when the difference between the sensible heat ratio and the sensible heat ratio characteristic of the indoor unit is lower than a lower limit of the set interval, until the corrected temperature of the air-out ball is obtained when the difference between the sensible heat ratio and the sensible heat ratio characteristic of the indoor unit is within the set interval.
6. 6. The air conditioner of claim 5, wherein the control module is configured to terminate the iterative process if the temperature of the air-out ball is higher than the air-out temperature, and to make the temperature of the air-out ball the air-out temperature.
7. 7. The air conditioner of claim 1, wherein the control module is configured to obtain a building load, the control module configured to determine an indoor unit sensible load based on the outdoor ambient temperature, an indoor unit return air temperature, and the building load.
8. 8. The air conditioner of claim 7, wherein the control module is configured to obtain a room area, the control module configured to determine an indoor unit sensible load based on the outdoor ambient temperature, an indoor unit return air temperature, a building load, and a room area.
9. 9. The air conditioner according to claim 1, wherein when a plurality of indoor units are installed in the same room, the capacity of the indoor units is obtained, and the sensible heat load of the indoor units is distributed according to the capacity of the opened indoor units.
10. 10. The air conditioner according to any one of claims 4 to 9, wherein the control device is configured to determine the indoor unit power according to the indoor unit model number and the wind level, determine the outdoor unit power according to the ratio of the total heat treatment capacity of all the open indoor units to the outdoor unit load performance, and determine the air conditioner power according to all the open indoor unit power and the outdoor unit power; The load performance of the outdoor unit is determined according to the load rate of the outdoor unit, the type of the outdoor unit, the absolute humidity of return air of the indoor unit and the outdoor environment temperature, and the load rate of the outdoor unit is the ratio of the total heat treatment capacity of all open indoor units to the rated performance of the outdoor unit; the control module is configured to determine the outdoor unit power according to the ratio of the total sensible heat treatment capacity of all the indoor units and the outdoor unit load performance, wherein the outdoor unit load performance is determined according to the outdoor unit load rate, the outdoor unit model, the indoor unit return air dry bulb temperature and the outdoor environment temperature, and the outdoor unit load rate is the ratio of the total sensible heat treatment capacity of all the indoor units and the rated performance of the outdoor unit.

Description

Air conditioner Technical Field The invention relates to the technical field of air conditioning systems, in particular to an air conditioner without manually setting temperature. Background When the existing air conditioner is used, the temperature needs to be set manually, and the air conditioner is controlled and regulated by taking the manually set temperature as the target temperature. However, the user autonomously sets the temperature with randomness, and the user does not have experience to set according to self cognition, so that the air conditioning capacity can not meet the indoor load demand and can not reach the user temperature demand, or the air conditioning capacity exceeds the indoor load demand and exceeds the user temperature demand, so that the user comfort is poor and the energy waste is caused. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention The invention provides an air conditioner, which solves the technical problems that the air conditioner capacity cannot meet the indoor load demand due to the fact that the user needs to set the temperature, the user temperature demand cannot be met, or the air conditioner capacity exceeds the indoor load demand and exceeds the user temperature demand, so that the comfort of the user is poor, and energy waste is caused. In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme: an air conditioner, comprising: the outdoor environment temperature detection module is used for detecting the outdoor environment temperature; The indoor unit return air temperature detection module is used for detecting the indoor unit return air temperature; the air conditioner further includes: The indoor unit air volume acquisition module is used for acquiring the indoor unit air volume; the control module is configured to determine the sensible heat load of the indoor unit according to the outdoor environment temperature and the return air temperature of the indoor unit; the control module is configured to determine the indoor unit air outlet temperature according to the sensible heat load of the indoor unit, the air quantity of the indoor unit and the air return temperature of the indoor unit, and take the determined indoor unit air outlet temperature as a target temperature; The control module is configured to control an operating state of the air conditioner according to the target temperature. The technical scheme has the advantages that the air conditioner obtains outdoor environment temperature and indoor unit return air temperature, determines indoor unit sensible heat load according to the outdoor environment temperature and the indoor unit return air temperature, determines indoor unit air outlet temperature according to the indoor unit sensible heat load, indoor unit air quantity and the indoor unit return air temperature, takes the determined indoor unit air outlet temperature as target temperature, and controls the running state of the air conditioner according to the target temperature, so that the air conditioner can predict the air outlet temperature meeting the indoor load requirement according to the indoor and outdoor environment temperature and the indoor unit air quantity so as to save energy to the greatest extent while meeting the user comfort temperature. In some embodiments, the control module is configured to control an operating state of the air conditioner according to the target temperature and the indoor unit return air temperature. The technical scheme has the advantages that the air conditioner control method has the advantages that an indoor unit air outlet temperature detection module is not required to be added, and the air conditioner is controlled by utilizing the indoor unit air return temperature, so that the cost can be saved. In some embodiments, the air conditioner includes: the indoor unit air outlet temperature detection module is used for detecting the indoor unit air outlet temperature; the control module is configured to control the running state of the air conditioner according to the target temperature and the air outlet temperature of the indoor unit. The technical scheme has the advantages that the control module controls the operation of the air conditioner to adjust the actual air outlet temperature of the indoor unit to the target temperature, so that the energy saving is performed to the greatest extent while the comfort temperature of a user is met. In some embodiments, when the air conditioner is in the refrigeration mode, the indoor unit air outlet temperature is the sum of the quotient of the indoor unit sensible heat load and the indoor unit air quantity and the indoor unit return air temperature. The indoor unit air outlet temperatu