CN108036472B - Air conditioner dehumidification control system and air conditioner - Google Patents

Air conditioner dehumidification control system and air conditioner Download PDF

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Publication number
CN108036472B
CN108036472B CN201711225027.0A CN201711225027A CN108036472B CN 108036472 B CN108036472 B CN 108036472B CN 201711225027 A CN201711225027 A CN 201711225027A CN 108036472 B CN108036472 B CN 108036472B
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temperature value
dehumidification
preset
return air
management unit
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CN108036472A (en
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张荣海
李丛来
石靖峰
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Abstract

The invention provides an air conditioner dehumidification control system and an air conditioner, wherein the air conditioner dehumidification control system can automatically select a dehumidification mode meeting user requirements and being suitable for environmental conditions according to parameters set by a user and an indoor return air temperature value, so that the air conditioner can automatically meet different dehumidification requirements in different environments and areas, the comfort performance of the air conditioner is improved, and the use range of the air conditioner is expanded; the air conditioner is provided with the air conditioner dehumidification control system, and a dehumidification mode meeting user requirements and being suitable for environmental conditions can be automatically selected according to parameters set by a user and an indoor return air temperature value so as to meet dehumidification requirements under different environments and regional conditions, and the air conditioner has high comfort performance and a wide application range.

Description

Air conditioner dehumidification control system and air conditioner
Technical Field
The invention belongs to the technical field of air conditioner dehumidification, and particularly relates to an air conditioner dehumidification control system and an air conditioner.
Background
The dehumidification function is one of the important functions of the air conditioner, the operating principle of the dehumidification of the air conditioner is that an indoor heat exchanger of the air conditioner is in a low-temperature state, and when water vapor in indoor return air passes through the indoor heat exchanger, the temperature is reduced to the dew point temperature under the cooling effect of the indoor heat exchanger, so that the water vapor in the air is condensed into condensed water, the water vapor content in the indoor air is reduced, and the indoor humidity is further reduced.
The air conditioner has the advantages that the land margin of China is wide, the climate environment of the south and the north is greatly different, the temperature and the humidity of the northern area are high and medium, the plum rain weather with low temperature and high humidity frequently occurs in the central and south areas, the southern area has the climate of the south and the south all year round, the dehumidification mode of the air conditioner on the market is single at present, the dehumidification mode mainly meets the temperature condition, and the dehumidification requirements of the central and south areas cannot be met; in addition, no personnel live or activities in the storage environment (storage room or equipment room), the temperature requirement is not high, but the humidity requirement is high, and the dehumidification function of the existing air conditioner cannot intelligently select and operate different dehumidification modes according to different environments and regional conditions so as to meet different dehumidification requirements.
Disclosure of Invention
Aiming at the technical problems, the invention provides a dehumidification control system of an air conditioner, which can automatically select a dehumidification mode meeting the user requirements and suitable for environmental conditions according to the parameters set by a user and the indoor return air temperature value, improves the comfort performance of the air conditioner, and enlarges the application range of the air conditioner; the invention further provides an air conditioner which can automatically select a dehumidification mode meeting user requirements and being suitable for environmental conditions according to parameters set by a user and an indoor return air temperature value so as to meet dehumidification requirements under different environments and regional conditions, and has higher comfort performance and wider application range.
In order to achieve the purpose, the invention adopts the technical scheme that:
an air conditioner dehumidification control system comprising:
an information receiving module: the dehumidification system comprises a dehumidification control module, a dehumidification control module and a control module, wherein the dehumidification control module is used for receiving and forwarding a dehumidification instruction and user set parameters, and the user set parameters comprise a preset temperature value, a preset humidity value, a preset temperature value and a preset humidity value;
a management module: the dehumidification module is used for receiving the dehumidification instruction and the user setting parameters and starting a corresponding dehumidification mode according to the user setting parameters, the management module is electrically connected with the receiving module, and the management module comprises:
a first management unit: the temperature control and dehumidification module is used for receiving the preset temperature value and starting a temperature control and dehumidification mode;
a second management unit: the second management unit is used for receiving the preset humidity value and starting an automatic dehumidification mode or a low-temperature dehumidification mode, and a first preset standard temperature value is preset in the second management unit;
a third management unit: the system is used for receiving the simultaneous preset temperature value and the preset humidity value and starting a non-cooling dehumidification mode;
a detection module: including indoor return air temperature detecting element, indoor return air temperature detecting element with second administrative unit electric connection, the second administrative unit is received indoor return air temperature value is compared with first predetermined standard temperature value:
if the indoor return air temperature value is greater than the first preset standard temperature value, the second management unit starts an automatic dehumidification mode;
and if the indoor return air temperature value is less than or equal to the first preset standard temperature value, the second management unit starts a low-temperature dehumidification mode.
Preferably, the air conditioner includes an indoor unit, the indoor return air temperature detection unit is electrically connected to the first management unit, the first management unit has a preset temperature threshold, and when the first management unit operates the temperature control dehumidification mode, the first management unit receives the indoor return air temperature value and performs the following determination:
if the indoor return air temperature value is greater than or equal to the sum of the preset temperature value and the temperature threshold value, controlling the indoor unit to start a dehumidification function;
if the indoor return air temperature value is smaller than the preset temperature value, controlling the dehumidification function of the indoor unit to stop;
and if the indoor return air temperature value is greater than or equal to the preset temperature value and the indoor return air temperature value is less than the sum of the preset temperature value and the temperature threshold value, controlling the indoor unit to maintain the current working state.
Preferably, the air conditioner comprises an indoor unit, the detection unit comprises an indoor return air humidity detection unit, the indoor return air humidity detection unit is respectively electrically connected with the second management unit and the third management unit, humidity thresholds are preset in the second management unit and the third management unit, the second management unit operates in the automatic dehumidification mode and the low-temperature dehumidification mode, and when the third management unit operates in the non-cooling dehumidification mode, the second management unit and the third management unit respectively receive the indoor return air humidity values and judge as follows:
if the indoor return air humidity value is larger than or equal to the sum of the preset humidity value and the humidity threshold value, controlling the indoor unit to start a dehumidification function;
if the indoor return air humidity value is smaller than the preset humidity value, controlling the dehumidification function of the indoor unit to stop;
and if the indoor return air humidity value is greater than or equal to the preset humidity value and the indoor return air humidity value is smaller than the sum of the preset humidity value and the humidity threshold value, controlling the indoor unit to maintain the current working state.
Preferably, the second management unit presets a second preset standard temperature value, and when the second management unit controls to operate the automatic dehumidification mode, the second management unit receives the indoor return air temperature value and performs the following judgment and control:
comparing the indoor return air temperature value with a first preset standard temperature value, and if the indoor return air temperature value is greater than or equal to the first preset standard temperature value, continuing to operate the automatic dehumidification mode;
and if the indoor return air temperature value is less than the first preset standard temperature value, controlling the indoor unit dehumidification function to stop, and continuing to operate the automatic dehumidification mode until the indoor return air temperature value is greater than or equal to the second preset standard temperature value.
Preferably, the air conditioner comprises a heat exchange coil, the detection module comprises a heat exchange coil temperature detection unit, the heat exchange coil temperature detection unit is electrically connected with a second management unit, a third preset standard temperature value is preset in the second management unit, and when the second management unit controls to operate in a low-temperature dehumidification mode, the second management unit receives the heat exchange coil temperature value and performs the following judgment and control:
judging whether the temperature value of the heat exchange coil is less than 0 ℃ and lasting for a first preset time:
if not, continuing to operate the low-temperature dehumidification mode;
if so, controlling the dehumidification function of the indoor unit to stop, repeatedly collecting the temperature value of the heat exchange coil, judging whether the temperature value of the heat exchange coil is larger than or equal to the third preset standard temperature value, and continuing to operate the low-temperature dehumidification mode until the temperature value of the heat exchange coil is larger than or equal to the third preset standard temperature value.
Preferably, the air conditioner includes a reheater, the third management unit is electrically connected to the reheater to control the start and stop of the reheater, and when the third management unit controls the non-cooling dehumidification mode, the third management unit receives the indoor return air temperature value and performs the following judgment and control:
comparing the indoor return air temperature value, a preset temperature value and a first preset standard temperature value, and if the indoor return air temperature value is smaller than the first preset standard temperature value, controlling a reheater to start;
if the indoor return air temperature value is greater than or equal to the preset temperature value, controlling a reheater to stop;
and if the indoor return air temperature value is greater than or equal to a first preset standard temperature value and the indoor return air temperature value is less than a preset temperature value, controlling the reheater to maintain the current running state.
An air conditioner comprises the air conditioner dehumidification control system.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the dehumidification control system of the air conditioner can automatically select the dehumidification mode meeting the user requirements and being suitable for the environmental conditions according to the parameters set by the user and the indoor return air temperature value, so that the air conditioner can automatically meet different dehumidification requirements in different environments and areas, the comfort performance of the air conditioner is improved, and the application range of the air conditioner is expanded.
2. The air conditioner provided by the invention is provided with the air conditioner dehumidification control system, can automatically select the dehumidification mode meeting the user requirements and being suitable for environmental conditions according to the parameters set by the user and the indoor return air temperature value so as to meet the dehumidification requirements under different environments and regional conditions, and has higher comfort performance and wider application range.
Drawings
FIG. 1 is a schematic block diagram of an air conditioner dehumidification control system of the present invention;
FIG. 2 is a flow chart of the dehumidification control system of the air conditioner to control the dehumidification process;
FIG. 3 is a flowchart illustrating a temperature-controlled dehumidification mode of a first management unit of the dehumidification control system of an air conditioner according to the present invention;
FIG. 4 is a flowchart illustrating an automatic dehumidification mode of a second management unit of the dehumidification control system of an air conditioner according to the present invention;
FIG. 5 is a flowchart illustrating a low temperature dehumidification mode performed by a second management unit of the dehumidification control system of an air conditioner according to the present invention;
fig. 6 is a flowchart illustrating a non-cooling dehumidification mode performed by a third management unit of the dehumidification control system of an air conditioner according to the present invention.
In the above figures: 1. an information receiving module; 2. a management module; 21. a first management unit; 22. a second management unit; 23. a third management unit; 3. a detection module; 31. an indoor return air temperature detection unit; 32. an indoor return air humidity detection unit; 33. and a heat exchange coil temperature detection unit.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, the present invention provides a dehumidification control system for an air conditioner, for controlling a dehumidification process of the air conditioner, comprising:
information receiving module 1: the dehumidification system comprises a dehumidification control module, a dehumidification control module and a control module, wherein the dehumidification control module is used for receiving and forwarding a dehumidification instruction and user set parameters, and the user set parameters comprise a preset temperature value, a preset humidity value, a preset temperature value and a preset humidity value;
and the management module 2: the dehumidifying module is used for receiving the dehumidifying instruction and the user setting parameters and starting a corresponding dehumidifying mode according to the user setting parameters, the management module 2 is electrically connected with the receiving module 1, and the management module 2 comprises:
the first management unit 21: the temperature control dehumidification module is used for receiving the preset temperature value and operating the temperature control dehumidification mode;
the second management unit 22: the second management unit 22 is configured to receive the preset humidity value and operate the automatic dehumidification mode or the low-temperature dehumidification mode, where a first preset standard temperature value is preset;
the third management unit 23: the temperature and humidity control module is used for receiving the simultaneous preset temperature value and the preset humidity value and operating the non-cooling dehumidification mode;
the detection module 3: including indoor return air temperature detecting element 31, indoor return air temperature detecting element 31 with second administrative unit 22 electric connection is in order to send indoor return air temperature value extremely the second administrative unit, second administrative unit 22 receives indoor return air temperature value and with first preset standard temperature value compares:
if the indoor return air temperature value is greater than the first preset standard temperature value, the second management unit 22 considers that the air conditioner is in a southern high-humidity environment, and operates an automatic dehumidification mode;
if the indoor return air temperature value is less than or equal to the first preset standard temperature value, the second management unit 22 determines that the air conditioner is in a storage environment (such as a storage room and an equipment room) which does not require temperature but requires high humidity, and operates the low-temperature dehumidification mode.
The invention relates to a dehumidification control system of an air conditioner, which is provided with an information receiving module 1 for receiving parameters set by a user, and a detection module 3 which comprises an indoor return air temperature detection unit 31 for collecting indoor return air temperature values, so that a management module 2 automatically selects a dehumidification mode which meets the requirements of the user and is suitable for environmental conditions according to the parameters set by the user and in combination with the indoor return air temperature values: if the user sets the temperature parameter, the first management unit 21 operates the temperature control dehumidification mode to meet the temperature requirement of the user; if the user sets the humidity parameter, the second management unit 22 further compares the indoor return air temperature value with a first preset standard temperature value, and if the indoor return air temperature value is greater than the first preset standard temperature value, the second management unit 22 considers that the air conditioner is in a southern high-humidity environment and operates an automatic dehumidification mode to meet the humidity requirement of the user; if the indoor return air temperature value is less than or equal to the first preset standard temperature value, the second management unit 22 determines that the air conditioner is in a storage environment (such as a storage room and an equipment room) which does not require temperature but has a high humidity requirement, and operates a low-temperature dehumidification mode to meet the humidity requirement of a user; if the user sets the temperature parameter and the humidity parameter at the same time, the third management unit 23 operates the non-cooling dehumidification mode to meet the temperature and humidity requirements of the user at the same time; therefore, the air conditioner can automatically meet different dehumidification requirements in different environments and areas, the comfort performance of the air conditioner is improved, and the application range of the air conditioner is expanded.
Preferably, the first preset standard temperature value is 18 ℃, so that the air conditioner meets the comfort requirement of a user in the environment.
It should be noted that the air conditioner includes an indoor unit, an indoor fan is disposed in the indoor unit, see fig. 1, the management module 2 includes an indoor fan wind speed management unit 24, and the indoor fan wind speed management unit 24 is electrically connected to the first management unit 21, the second management unit 22, and the third management unit 23, respectively, so that in the whole operation process of temperature control dehumidification, automatic dehumidification, low-temperature dehumidification, and non-cooling dehumidification, the indoor fan operates at a low wind speed, so that water vapor in indoor return air is fully condensed, and the dehumidification efficiency of the air conditioner is improved.
Referring to fig. 1 and 3, the indoor return air temperature detecting unit 31 is electrically connected to the first management unit 21 to send an indoor return air temperature value to the first management unit 21, a temperature threshold is preset in the first management unit 21, and when the first management unit 21 operates the temperature-controlled dehumidification mode, the first management unit 21 receives the indoor return air temperature value and performs the following determination:
if the indoor return air temperature value is greater than or equal to the sum of the preset temperature value and the temperature threshold value, the temperature of the indoor environment is considered to be too high at the moment and deviates from the comfort range of the preset temperature of the user, and the indoor unit dehumidification function is controlled to be started so as to reduce the temperature of the indoor environment and reduce the humidity of the indoor environment;
if the indoor return air temperature value is smaller than the preset temperature value, the temperature of the indoor environment is considered to be too low at the moment, the dehumidification function of the indoor unit is controlled to stop, and the indoor environment is stopped to be cooled continuously, so that the temperature of the indoor environment is gradually increased, and the comfort of a user is ensured;
if the indoor return air temperature value is greater than or equal to the preset temperature value and the indoor return air temperature value is less than the sum of the preset temperature value and the temperature threshold value, the indoor environment temperature is considered to be in a comfortable temperature range at the moment, and the indoor unit is controlled to maintain the current working state, so that the current temperature state is maintained.
According to the dehumidification control system of the air conditioner, when the first management unit 21 controls the temperature control dehumidification mode to operate, the first management unit 21 receives the indoor return air temperature value through the indoor return air temperature detection unit 31, and adjusts or keeps the starting, stopping or operating state of the dehumidification function of the indoor unit by calculating the temperature difference between the indoor return air temperature value and the preset temperature value, so that the dehumidification process of the temperature control dehumidification mode is an intermittent operation process, the indoor environment temperature is guaranteed to meet the comfort range of the preset temperature value, and the comfort of users is improved.
Preferably, the temperature threshold is 2 ℃ to ensure the temperature comfort of a user in the environment where the air conditioner is located.
Referring to fig. 1, 3 to 6, the detection module 3 includes an indoor return air humidity detection unit 32, the indoor return air humidity detection unit 32 is electrically connected to the second management unit 22 and the third management unit 23, the second management unit 22 and the third management unit 23 both have preset humidity thresholds, the second management unit 22 starts the automatic dehumidification mode and the low-temperature dehumidification mode, and when the third management unit 23 operates the non-cooling dehumidification mode, the second management unit 22 and the third management unit 23 receive the indoor return air humidity values and determine the following values:
if the indoor return air humidity value is larger than or equal to the sum of the preset humidity value and the humidity threshold value, the humidity of the indoor environment is considered to be too high at the moment and deviates from the comfort range of the preset humidity of the user, and the dehumidification function of the indoor unit is controlled to be started so as to reduce the temperature of the indoor environment and reduce the humidity of the indoor environment;
if the indoor return air humidity value is smaller than the preset humidity value, the humidity of the indoor environment is considered to be too low, the indoor unit dehumidification function is controlled to stop, and the indoor environment is stopped being cooled and dehumidified continuously, so that the humidity of the indoor environment rises gradually, and the comfort of users is improved;
and if the indoor return air humidity value is greater than or equal to the preset humidity value and the indoor return air humidity value is smaller than the sum of the preset humidity value and the humidity threshold value, the indoor environment humidity is considered to be in a comfortable humidity range at the moment, and the indoor unit is controlled to maintain the current working state, so that the current humidity state is maintained.
According to the dehumidification control system of the air conditioner, the detection module 3 comprises the indoor return air humidity detection unit 32, the second management unit 22 controls the automatic dehumidification mode and the low-temperature dehumidification mode to operate, the third management unit 23 controls the non-cooling dehumidification mode to operate, the second management unit 22 and the third management unit 23 receive the indoor return air humidity value through the indoor return air humidity detection unit 32, and the start-stop or operation state of the dehumidification function of the indoor unit is adjusted or kept by calculating the humidity difference value between the indoor return air humidity value and the preset humidity value, so that the indoor environment humidity is in the comfort range of the preset humidity value, and the comfort of a user is improved.
Preferably, the humidity threshold is 10% to ensure the humidity comfort of a user in the environment where the air conditioner is located.
It should be noted that one or more indoor units of the air conditioner may be provided, and when there is one indoor unit, the air conditioner is a one-to-one unit machine (one outdoor unit corresponds to one indoor unit), at this time, the starting of the dehumidification function of the indoor unit means that the compressor in the outdoor unit corresponding to the indoor unit is started, and the stopping of the dehumidification function of the indoor unit means that the compressor is stopped; when a plurality of indoor units are provided, the air conditioner is a multi-split air conditioner (one outdoor unit corresponds to a plurality of indoor units), at the moment, the starting of the dehumidification function of the indoor unit means that the electronic expansion valve of the indoor unit is opened, the stopping of the dehumidification function of the indoor unit means that the electronic expansion valve of the indoor unit is closed, at the moment, the compressor in the outdoor unit corresponding to the indoor unit may not be stopped, and when all the indoor units corresponding to the outdoor unit stop the dehumidification function, the compressor of the outdoor unit is stopped.
Referring to fig. 1 and 4, when the second management unit 22 controls to operate the automatic dehumidification mode, the temperature of the indoor environment decreases with the progress of the automatic dehumidification mode, and when the preset humidity value of the user is low, in order to prevent the indoor environment temperature from being lower than the first preset standard temperature value and reduce the comfort of the user, the second management unit 22 of the dehumidification control system of the air conditioner further compares the indoor return air temperature value, the first preset temperature value and the second preset standard temperature value to further control the start and stop of the automatic dehumidification mode when controlling to operate the automatic dehumidification mode. Specifically, the second management unit 22 presets a second preset standard temperature value, and further receives the indoor return air temperature value through the indoor return air temperature detection unit 31, and performs the following judgment and control:
comparing the indoor return air temperature value with a first preset standard temperature value:
if the indoor return air temperature value is greater than or equal to the first preset standard temperature value, the temperature of the indoor environment at the moment is considered to meet the comfort requirement of a user, and the indoor return air humidity value and the preset temperature value are repeatedly calculated to adjust or maintain the running state of the indoor unit dehumidification function, so that the automatic dehumidification mode is continuously carried out;
if the indoor return air temperature value is smaller than the first preset standard temperature value, the temperature of the indoor environment is considered to be too low at the moment, the comfort requirement of a user cannot be met, the dehumidification function of the indoor unit is controlled to stop, and the indoor environment is stopped being cooled and dehumidified continuously, so that the temperature of the indoor environment is gradually increased, and the comfort of the user is improved; and continuing to operate the automatic dehumidification mode until the indoor return air temperature value is greater than or equal to the second preset standard temperature value.
It should be noted that the second preset standard temperature value is greater than the first preset standard temperature value and is less than the initial indoor return air temperature value, so as to ensure that the automatic dehumidification process is performed again after the indoor environment temperature meets the comfort requirement.
In the dehumidification control system of the air conditioner, when the second management unit 22 controls the automatic dehumidification mode to operate, the start-stop or operation state of the dehumidification function of the indoor unit is adjusted or maintained by calculating the indoor return air humidity value and the preset temperature value, the indoor return air temperature value is further received by the indoor return air temperature detection unit 31, and the indoor return air temperature value, the first preset temperature value and the second preset standard temperature value are compared to further control the start-stop of the automatic dehumidification mode, so that the dehumidification process of the automatic dehumidification mode is an intermittent operation process, the reduction of the indoor environment temperature along with the progress of the automatic dehumidification mode is avoided, and the comfort of a user is improved.
Referring to fig. 1 and 5, a heat exchange coil is disposed in the indoor unit, a refrigerant is filled in the heat exchange coil, and when the second management unit 22 controls the low-temperature dehumidification mode to operate, because the outlet air temperature of the indoor unit is low during the low-temperature dehumidification process, in order to prevent the refrigerant in the heat exchange coil from freezing when the temperature of the refrigerant is lower than 0 ℃, and further damage the air conditioner, the second management unit 22 of the dehumidification control system of the air conditioner of the invention controls the low-temperature dehumidification mode to operate, and further compares the temperature value of the heat exchange coil, the temperature value of 0 ℃ and a third preset standard temperature value to further control the start and stop of the low-temperature dehumidification mode. Specifically, the detection module 3 includes a heat exchange coil temperature detection unit 33, the heat exchange coil temperature detection unit 33 is electrically connected to the second management unit 22 to send a heat exchange coil temperature value to the second management unit 22, a third preset standard temperature value is preset in the second management unit 22, and when the second management unit 22 controls to operate in the low-temperature dehumidification mode, the second management unit 22 further receives the heat exchange coil temperature value through the heat exchange coil temperature detection unit 33 and performs the following judgment and control:
judging whether the temperature value of the heat exchange coil is less than 0 ℃ and lasting for a first preset time:
if not, the refrigerant in the heat exchange coil is not frozen or the risk of freezing does not exist, and the indoor return air humidity value and the preset temperature value are repeatedly calculated to adjust or keep the starting, stopping or running state of the dehumidification function of the indoor unit, so that the indoor unit continues to perform the low-temperature dehumidification mode;
if so, determining that the refrigerant in the heat exchange coil is in an icing risk or is already iced, controlling the dehumidification function of the indoor unit to stop, and stopping continuously cooling and dehumidifying the indoor environment to gradually raise the temperature of the heat exchange coil so as to avoid damaging the air conditioner;
in order to continue the automatic dehumidification process after the temperature of the refrigerant in the heat exchange coil rises, the second management unit 22 continues to receive the temperature value of the heat exchange coil through the heat exchange coil temperature detection unit 33, and determines whether the temperature value of the heat exchange coil is greater than or equal to the third preset standard temperature value, and continues to operate the low-temperature dehumidification mode until the temperature value of the heat exchange coil is greater than or equal to the third preset standard temperature value.
It should be noted that the first preset time is preferably 3 min, so as to ensure the quality stability of the air conditioner; the third preset standard temperature value is 15 ℃ so as to ensure the temperature comfort of a user in the environment where the air conditioner is located.
The invention relates to a dehumidification control system of an air conditioner, wherein a detection module 3 comprises a heat exchange coil temperature detection unit 33, the heat exchange coil temperature detection unit 33 is electrically connected to the second management unit 22, the second management unit 22 controls the low-temperature dehumidification mode to operate, the starting, stopping or running state of the dehumidification function of the indoor unit is adjusted or kept by calculating the indoor return air humidity value and the preset temperature value, and further receives the temperature value of the heat exchange coil through the heat exchange coil temperature detecting unit 33, and comparing the temperature value of the heat exchange coil, 0 ℃ and a third preset standard temperature value to further control the starting and stopping of the low-temperature dehumidification mode, so that the dehumidification process of the low-temperature dehumidification mode is an intermittent operation process to prevent the freezing of the refrigerant in the heat exchange coil due to the temperature of the refrigerant being lower than 0 ℃, and further damage the air conditioner, thereby improving the operation stability and the service life of the air conditioner.
Referring to fig. 1 and 6, when the third management unit 23 controls the operation of the non-cooling dehumidification mode, the temperature of the indoor environment decreases along with the operation of the non-cooling dehumidification mode, and in order to enable the air conditioner to simultaneously meet the humidity requirement and the temperature requirement of the user, a reheater is arranged in the indoor unit. Specifically, the third management unit 23 is electrically connected to the reheater to control the start and stop of the reheater, the indoor return air temperature detection unit 31 is electrically connected to the third management unit 23 to send an indoor return air temperature value to the third management unit 23, and when the third management unit 23 controls to operate in the non-cooling dehumidification mode, the third management unit 23 further receives the indoor return air temperature value through the indoor return air temperature detection unit 31 and performs the following determination and control:
comparing the indoor return air temperature value, the preset temperature value and a first preset standard temperature value:
if the indoor return air temperature value is smaller than a first preset standard temperature value, the temperature of the indoor environment is considered to be too low at the moment, the comfort requirement of a user cannot be met, and the reheater is controlled to be started;
if the indoor return air temperature value is greater than or equal to the preset temperature value, the temperature of the environment at the moment is considered to be overhigh, and the reheater is controlled to stop;
and if the indoor return air temperature value is greater than or equal to a first preset standard temperature value and the indoor return air temperature value is less than a preset temperature value, the temperature of the indoor environment is considered to meet the requirement of comfort, and the reheater is controlled to maintain the current running state.
In the dehumidification control system of the air conditioner, the third management unit 23 is electrically connected with the indoor return air temperature detection unit 31, when the third management unit 23 controls the non-cooling dehumidification mode to operate, the on-off or operation state of the dehumidification function of the indoor unit is adjusted or maintained by calculating the humidity value and the preset temperature value of the indoor return air, the indoor return air temperature value is further received by the indoor return air temperature detection unit 31, and the indoor return air temperature value, the preset temperature value and the first preset temperature value are compared to further control the on-off and operation state of the reheater, so that the air conditioner can simultaneously meet the humidity requirement and the temperature requirement of a user.
The invention further provides an air conditioner, which comprises the air conditioner dehumidification control system, can automatically select a dehumidification mode meeting the user requirements and suitable for environmental conditions according to parameters set by a user and an indoor return air temperature value, has high comfort performance and a wide application range, and is not described in detail herein.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (7)

1. The utility model provides an air conditioner dehumidification control system which characterized in that: the method comprises the following steps:
an information receiving module: the dehumidification system comprises a dehumidification control module, a dehumidification control module and a control module, wherein the dehumidification control module is used for receiving and forwarding a dehumidification instruction and user set parameters, and the user set parameters comprise a preset temperature value, a preset humidity value, a preset temperature value and a preset humidity value;
a management module: the dehumidification module is used for receiving the dehumidification instruction and the user setting parameters and starting a corresponding dehumidification mode according to the user setting parameters, the management module is electrically connected with the receiving module, and the management module comprises:
a first management unit: the temperature control and dehumidification module is used for receiving the preset temperature value and starting a temperature control and dehumidification mode;
a second management unit: the second management unit is used for receiving the preset humidity value and starting an automatic dehumidification mode or a low-temperature dehumidification mode, and a first preset standard temperature value is preset in the second management unit;
a third management unit: the system is used for receiving the simultaneous preset temperature value and the preset humidity value and starting a non-cooling dehumidification mode;
a detection module: including indoor return air temperature detecting element, indoor return air temperature detecting element with second administrative unit electric connection, the second administrative unit receives the indoor return air temperature value that indoor return air temperature detecting element gathered compares with first predetermined standard temperature value:
if the indoor return air temperature value is greater than the first preset standard temperature value, the second management unit starts an automatic dehumidification mode;
and if the indoor return air temperature value is less than or equal to the first preset standard temperature value, the second management unit starts a low-temperature dehumidification mode.
2. The dehumidification control system of an air conditioner according to claim 1, wherein: the air conditioner comprises an indoor unit, the indoor return air temperature detection unit is electrically connected with the first management unit, a temperature threshold value is preset in the first management unit, and when the first management unit operates in the temperature control dehumidification mode, the first management unit receives the indoor return air temperature value and judges the indoor return air temperature value as follows:
if the indoor return air temperature value is greater than or equal to the sum of the preset temperature value and the temperature threshold value, controlling the indoor unit to start a dehumidification function;
if the indoor return air temperature value is smaller than the preset temperature value, controlling the dehumidification function of the indoor unit to stop;
and if the indoor return air temperature value is greater than or equal to the preset temperature value and the indoor return air temperature value is less than the sum of the preset temperature value and the temperature threshold value, controlling the indoor unit to maintain the current working state.
3. The dehumidification control system of an air conditioner according to claim 1, wherein: the air conditioner comprises an indoor unit, the detection unit comprises an indoor return air humidity detection unit, the indoor return air humidity detection unit is respectively electrically connected with a second management unit and a third management unit, humidity threshold values are preset in the second management unit and the third management unit, the second management unit runs in an automatic dehumidification mode and a low-temperature dehumidification mode, and when the third management unit runs in a cooling-free dehumidification mode, the second management unit and the third management unit respectively receive the indoor return air humidity values and carry out the following judgment:
if the indoor return air humidity value is larger than or equal to the sum of the preset humidity value and the humidity threshold value, controlling the indoor unit to start a dehumidification function;
if the indoor return air humidity value is smaller than the preset humidity value, controlling the dehumidification function of the indoor unit to stop;
and if the indoor return air humidity value is greater than or equal to the preset humidity value and the indoor return air humidity value is smaller than the sum of the preset humidity value and the humidity threshold value, controlling the indoor unit to maintain the current working state.
4. The dehumidification control system of an air conditioner according to claim 3, wherein: the second management unit is preset with a second preset standard temperature value, and when the second management unit controls the operation of the automatic dehumidification mode, the second management unit receives the indoor return air temperature value and performs the following judgment and control:
comparing the indoor return air temperature value with a first preset standard temperature value, and if the indoor return air temperature value is greater than or equal to the first preset standard temperature value, continuing to operate the automatic dehumidification mode;
and if the indoor return air temperature value is less than the first preset standard temperature value, controlling the indoor unit dehumidification function to stop, and continuing to operate the automatic dehumidification mode until the indoor return air temperature value is greater than or equal to the second preset standard temperature value.
5. The dehumidification control system of an air conditioner according to claim 3, wherein: the air conditioner comprises a heat exchange coil, the detection module comprises a heat exchange coil temperature detection unit, the heat exchange coil temperature detection unit is electrically connected with a second management unit, a third preset standard temperature value is preset in the second management unit, and when the second management unit controls to operate in a low-temperature dehumidification mode, the second management unit receives the heat exchange coil temperature value and performs the following judgment and control:
judging whether the temperature value of the heat exchange coil is less than 0 ℃ and lasting for a first preset time:
if not, continuing to operate the low-temperature dehumidification mode;
if so, controlling the dehumidification function of the indoor unit to stop, repeatedly collecting the temperature value of the heat exchange coil, judging whether the temperature value of the heat exchange coil is larger than or equal to the third preset standard temperature value, and continuing to operate the low-temperature dehumidification mode until the temperature value of the heat exchange coil is larger than or equal to the third preset standard temperature value.
6. The dehumidification control system of an air conditioner according to claim 3, wherein: the air conditioner comprises a reheater, the third management unit is electrically connected with the reheater to control the starting and stopping of the reheater, and when the third management unit controls the operation of the non-cooling dehumidification mode, the third management unit receives the indoor return air temperature value and carries out the following judgment and control:
comparing the indoor return air temperature value, a preset temperature value and a first preset standard temperature value, and if the indoor return air temperature value is smaller than the first preset standard temperature value, controlling a reheater to start;
if the indoor return air temperature value is greater than or equal to the preset temperature value, controlling a reheater to stop;
and if the indoor return air temperature value is greater than or equal to a first preset standard temperature value and the indoor return air temperature value is less than a preset temperature value, controlling the reheater to maintain the current running state.
7. An air conditioner, characterized in that: comprising the air conditioner dehumidification control system as set forth in any one of claims 1 to 6.
CN201711225027.0A 2017-11-29 2017-11-29 Air conditioner dehumidification control system and air conditioner Active CN108036472B (en)

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CN108826584A (en) * 2018-06-06 2018-11-16 青岛海尔空调器有限总公司 A kind of defrosting control method of air conditioner, device, storage medium
CN110657489B (en) * 2019-10-25 2021-04-13 南京天加环境科技有限公司 Improved dehumidification reheating system and control method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009035077A1 (en) * 2007-09-14 2009-03-19 Daikin Industries, Ltd. Humidity control device
CN101639258A (en) * 2008-07-31 2010-02-03 Tcl集团股份有限公司 Dehumidifying air conditioner and dehumidifying method thereof
CN103375868A (en) * 2012-04-12 2013-10-30 珠海格力电器股份有限公司 Air-conditioner temperature control and dehumidification control method
CN104344505A (en) * 2014-11-14 2015-02-11 赵强飞 Intelligent energy-saving dehumidification and thermoregulation system and control method thereof
CN104990229A (en) * 2015-07-28 2015-10-21 广东美的暖通设备有限公司 Air conditioning system and control method thereof
CN105135627A (en) * 2015-09-24 2015-12-09 广东美的制冷设备有限公司 Air conditioning system as well as control method and control device thereof
CN105157168A (en) * 2015-08-24 2015-12-16 合肥美的暖通设备有限公司 Dehumidification control method for air conditioner, controller and air conditioner
JP2016172234A (en) * 2015-03-17 2016-09-29 象印マホービン株式会社 Dehumidifier and method for operating the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009035077A1 (en) * 2007-09-14 2009-03-19 Daikin Industries, Ltd. Humidity control device
CN101639258A (en) * 2008-07-31 2010-02-03 Tcl集团股份有限公司 Dehumidifying air conditioner and dehumidifying method thereof
CN103375868A (en) * 2012-04-12 2013-10-30 珠海格力电器股份有限公司 Air-conditioner temperature control and dehumidification control method
CN104344505A (en) * 2014-11-14 2015-02-11 赵强飞 Intelligent energy-saving dehumidification and thermoregulation system and control method thereof
JP2016172234A (en) * 2015-03-17 2016-09-29 象印マホービン株式会社 Dehumidifier and method for operating the same
CN104990229A (en) * 2015-07-28 2015-10-21 广东美的暖通设备有限公司 Air conditioning system and control method thereof
CN105157168A (en) * 2015-08-24 2015-12-16 合肥美的暖通设备有限公司 Dehumidification control method for air conditioner, controller and air conditioner
CN105135627A (en) * 2015-09-24 2015-12-09 广东美的制冷设备有限公司 Air conditioning system as well as control method and control device thereof

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