CN114508826A - Method and device for testing multi-split air conditioner and multi-split air conditioner - Google Patents

Method and device for testing multi-split air conditioner and multi-split air conditioner Download PDF

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Publication number
CN114508826A
CN114508826A CN202210048364.1A CN202210048364A CN114508826A CN 114508826 A CN114508826 A CN 114508826A CN 202210048364 A CN202210048364 A CN 202210048364A CN 114508826 A CN114508826 A CN 114508826A
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China
Prior art keywords
air conditioner
temperature difference
working temperature
indoor units
split air
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CN202210048364.1A
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Chinese (zh)
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CN114508826B (en
Inventor
宋云茂
张秋玉
于鲁达
李晓晓
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Publication of CN114508826A publication Critical patent/CN114508826A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of air conditioners, and discloses a method for testing a multi-split air conditioner, which comprises the following steps: determining the current operation mode of the multi-split air conditioner; calculating the working temperature difference of each currently running indoor unit; under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing the working temperature differences and determining the maximum value of the working temperature differences; controlling an indoor unit corresponding to the maximum working temperature difference value to be closed according to the operation mode of the multi-split air conditioner; and (4) presetting shutdown duration at intervals, and controlling the rest indoor units to be closed one by one according to the recalculated working temperature difference. The indoor unit shutdown test system can ensure that all indoor units can be normally started and operated, and the indoor units are closed one by one according to the working temperature difference, so that the phenomenon that part of the indoor units are shut down in advance in the test process can be effectively avoided, and the test accuracy is improved. The application also discloses a device for testing the multi-split air conditioner, the multi-split air conditioner and a storage medium.

Description

Method and device for testing multi-split air conditioner and multi-split air conditioner
Technical Field
The application relates to the technical field of air conditioners, in particular to a method and a device for testing a multi-split air conditioner, the multi-split air conditioner and a storage medium.
Background
At present, when an air conditioner is tested in the performance aspect of an enthalpy difference laboratory, an indoor unit needs to be connected into a wind tunnel of laboratory equipment to detect the air volume, the temperature and the like of the indoor unit, and then the heating or refrigerating capacity of the air conditioner is calculated. In the prior art, whether the indoor unit is shut down or not is judged only by detecting whether the ambient temperature near the air outlet of the indoor unit reaches the target temperature or not.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
for the test of indoor unit of one-driving-multiple air conditioner, the air outlets of multiple indoor units are connected to the air hole of laboratory. However, the air outlets of the indoor units are connected in a narrow space, so that the phenomenon of air blowing and flowing backwards is easy to occur during testing. When the indoor units are turned on or the air blowing is later than that of other indoor units, the air blowing quantity of the indoor units is small, so that the temperature sensor of the indoor unit is likely to cause the distortion of the perception of the ambient temperature due to the backward flowing of the air blowing of other indoor units. Therefore, the method may cause a phenomenon that a part of the indoor units are shut down in advance in the test process, so that the test result of the experiment is not accurate enough.
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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for testing a multi-split air conditioner, the multi-split air conditioner and a storage medium, which can avoid the phenomenon that part of indoor units are shut down in advance in the testing process of the multi-split air conditioner, thereby being beneficial to improving the accuracy of test.
In some embodiments, the method comprises:
determining the current operation mode of the multi-split air conditioner;
calculating the working temperature difference of each currently running indoor unit;
under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing the working temperature differences and determining the maximum value of the working temperature differences;
controlling an indoor unit corresponding to the maximum working temperature difference to be closed according to the operation mode of the multi-split air conditioner;
and (4) presetting shutdown duration at intervals, and controlling the rest indoor units to be closed one by one according to the recalculated working temperature difference.
In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to, when executing the program instructions, perform the method for a split-multi air conditioner test described above.
In some embodiments, the one-to-many air conditioner includes:
an outdoor unit;
a plurality of indoor units provided with air outlets;
the temperature sensors are arranged on one side of the air outlet of the indoor unit and correspond to the indoor units one to one; and the combination of (a) and (b),
the device for testing the multi-split air conditioner is disclosed.
In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for testing a multi-split air conditioner.
The method and the device for testing the multi-split air conditioner, the multi-split air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
in the embodiment of the disclosure, the working temperature difference of each indoor unit is calculated, and whether the working temperature difference meets a first preset condition is judged. Under the condition that all the indoor units meet a first preset condition, determining the maximum value in the working temperature difference, and combining the operation mode of the multi-split air conditioner to shut down the indoor unit corresponding to the maximum value or the minimum value firstly. And then recalculating the working temperature difference at intervals, and controlling the rest indoor units to be closed within each period of time so as to complete the one-by-one shutdown of the rest indoor units. The embodiment of the disclosure can ensure that all indoor units can be normally started and operated, and the indoor units are controlled to be closed one by one according to the working temperature difference, so that the phenomenon that part of the indoor units are shut down in advance in the testing process of the multi-split air conditioner can be effectively avoided, and the accuracy of the test is favorably improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a system environment for testing a multi-split air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for testing a multi-split air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of another method for testing a multi-split air conditioner according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for testing a multi-split air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of another method for testing a multi-split air conditioner provided by an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an apparatus for testing a multi-split air conditioner according to an embodiment of the disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
At present, when an air conditioner is tested in the performance aspect of an enthalpy difference laboratory, an indoor unit needs to be connected into a wind tunnel of laboratory equipment to detect the air volume, the temperature and the like of the indoor unit, and then the heating or cooling capacity of the air conditioner is calculated. In the prior art, whether the indoor unit is shut down or not is judged only by detecting whether the ambient temperature near the air outlet of the indoor unit reaches the target temperature or not. For the test of indoor unit of one-driving-multiple air conditioner, the air outlets of multiple indoor units are connected to the air hole of laboratory. However, the air outlets of the indoor units are connected in a narrow space, so that the phenomenon of air blowing and flowing backwards is easy to occur during testing. When the indoor units are turned on or the air blowing is later than that of other indoor units, the air blowing quantity of the indoor units is small, so that the temperature sensor of the indoor unit is likely to cause the distortion of the perception of the ambient temperature due to the backward flowing of the air blowing of other indoor units. Therefore, the method may cause a phenomenon that a part of the indoor units are shut down in advance in the test process, so that the test result of the experiment is not accurate enough.
Referring to fig. 1, an embodiment of the present disclosure provides a system environment for testing a multi-split air conditioner, including: outdoor unit, indoor unit, temperature sensor and wind tunnel. The outdoor unit is arranged outside the laboratory. The indoor set has a plurality ofly, all sets up inside the laboratory, and every indoor set all is provided with the air outlet. The temperature sensors are in one-to-one correspondence with the indoor units. The wind tunnel is communicated with the air outlets of the indoor units.
Optionally, each temperature sensor is disposed at one side of the air outlet of the corresponding indoor unit. Therefore, the temperature sensor cannot be directly blown by the air outlet of the corresponding indoor unit, and the ambient temperature corresponding to each indoor unit can be detected more accurately.
Optionally, the number of indoor units may be adjusted according to actual test conditions. Specifically, the number of indoor units may be set to 10. And may be set to any other value such as 8 or 12. Therefore, by arranging a plurality of indoor units of the multi-split air conditioner in the same laboratory, the interference of environmental difference on the test can be avoided, and the performance difference between the heating capacity and the cooling capacity of each indoor unit can be objectively compared.
Referring to fig. 2, an embodiment of the present disclosure provides a method for testing a multi-split air conditioner, including:
s201, the processor determines the current operation mode of the multi-split air conditioner.
S202, the processor calculates the working temperature difference of each currently running indoor unit.
And S203, under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing each working temperature difference by the processor, and determining the maximum working temperature difference.
And S204, controlling the indoor unit corresponding to the maximum working temperature difference value to be closed by the processor according to the running mode of the multi-split air conditioner.
And S205, controlling the rest indoor units to be closed one by the processor according to the recalculated working temperature difference at each preset interval.
By adopting the method for testing the multi-split air conditioner, which is provided by the embodiment of the disclosure, the working temperature difference of each indoor unit is calculated, and whether the working temperature difference meets a first preset condition is judged. Under the condition that all the indoor units meet a first preset condition, determining the maximum value in the working temperature difference, and combining the operation mode of the multi-split air conditioner to shut down the indoor unit corresponding to the maximum value or the minimum value firstly. And then recalculating the working temperature difference at intervals, and controlling the rest indoor units to be closed within each period of time so as to complete the one-by-one shutdown of the rest indoor units. The embodiment of the disclosure can ensure that all indoor units can be normally started and operated, and the indoor units are controlled to be closed one by one according to the working temperature difference, so that the phenomenon that part of the indoor units are shut down in advance in the testing process of the multi-split air conditioner can be effectively avoided, and the accuracy of the test is favorably improved.
Optionally, the processor calculating the operating temperature difference of each currently operating indoor unit includes: the processor determines a target temperature Ta according to the operation mode of the multi-split air conditioner; the processor acquires the current ambient temperature Tb detected by each currently running indoor uniti(ii) a Processor calculates Δ Ti＝TbiTa, obtaining the working temperature difference Delta T of each indoor uniti. Wherein i is 1, 2, …, N. Thus, the present disclosure providesThe embodiment can detect the current ambient temperature Tb of the position through the temperature sensor arranged on one side of the air outlet of the indoor unitiAnd calculates the difference between it and the target temperature Ta, thereby obtaining the operating temperature difference Δ T of each operating indoor uniti. The working temperature difference can reflect the performance difference between the heating or refrigerating capacities of the indoor units to a certain extent, so that the shutdown of the indoor units can be reasonably controlled. Furthermore, the phenomenon that part of indoor units are shut down in advance in the test process of the multi-split air conditioner can be effectively avoided, and the accuracy of test is improved.
Optionally, the processor determining the target temperature Ta according to the operation mode of the multi-split air conditioner includes: in the case that the operation mode of the multi-split air conditioner is the heating mode, the processor determines the target temperature Ta as the heating target temperature Ta1(ii) a Or, in the case that the operation mode of the multi-split air conditioner is the cooling mode, the processor determines the target temperature Ta as the cooling target temperature Ta2. Wherein, Ta1＞Ta2. Therefore, the target temperature in the heating mode or the cooling mode can be preset, and the working temperature difference of each indoor unit can be calculated more conveniently and rapidly. And because the target temperatures of the indoor units in the heating mode or the cooling mode are consistent, the working conditions of the indoor units are ensured to be the same, so that the performance difference between the heating capacity and the cooling capacity of the indoor units can be objectively compared.
Alternatively, the heating target temperature Ta1Can be adjusted according to the test requirements or environmental parameters. Preferably, the heating target temperature Ta1May be set at 30 deg.c. And may be set to any other value such as 29 deg.c or 28 deg.c. In this way, the shutdown time of the indoor unit can be preset through the heating target temperature. And because the target temperature of each indoor unit heating mode is consistent, the working conditions of each indoor unit are ensured to be the same, and the difference between the heating capacities of the indoor units can be objectively compared.
Optionally, a target temperature Ta of refrigeration2Can be adjusted according to the test requirements or environmental parameters. Preferably, theCold target temperature Ta2May be set at 16 deg.c. It may be set to any other value such as 17 ℃ or 18 ℃. Therefore, the shutdown time of the indoor unit can be preset through the refrigeration target temperature. And because the target temperatures of the indoor units in the refrigeration modes are consistent, the working conditions of the indoor units are ensured to be the same, and the difference between the refrigeration capacities of the indoor units can be more objectively compared.
Optionally, the processor determines the first preset condition in the following manner, including: under the condition that the operation mode of the multi-split air conditioner is a heating mode, the processor determines that the first preset condition is that the working temperature difference is larger than a first preset value; or, in the case that the operation mode of the multi-split air conditioner is the cooling mode, the processor determines that the first preset condition is that the working temperature difference is smaller than the second preset value. Thus, the embodiment of the disclosure can set the judgment conditions according to the heating mode or the cooling mode, so that the closing of the indoor unit can be controlled more reasonably according to different operation modes. And because the working temperature difference of each running indoor unit needs to meet the first preset condition, the embodiment of the disclosure can perform time-delay judgment aiming at the test, and avoid that the back-flow problem causes the back-flow indoor unit to be shut down in advance when most indoor units reach the target temperature. Therefore, all indoor units can be ensured to be started up normally to operate, and the accuracy of test testing is improved.
Optionally, the first preset value is greater than zero. Preferably, the first preset value may be set to 0.5 ℃. It may be set to any other value such as 1 ℃ or 1.5 ℃. Thus, the embodiment of the present disclosure further defines the conditions for determining the closing of the indoor unit, so as to perform a more severe delay determination for the test. The problem that the back flow problem occurs when most indoor units reach the target temperature so that the back flow indoor unit is shut down in advance is avoided. Thereby being beneficial to further improving the accuracy of the test.
Optionally, the second preset value is less than zero. Preferably, the second preset value may be set to-0.5 ℃. It may be set to any other value such as-1 ℃ or-1.5 ℃. Thus, the embodiment of the present disclosure further defines the conditions for determining the closing of the indoor unit, so as to perform a more severe delay determination for the test. The problem that the back flow problem occurs when most indoor units reach the target temperature so that the back flow indoor unit is shut down in advance is avoided. Thereby being beneficial to further improving the accuracy of the test.
Optionally, the controlling, by the processor, the indoor unit corresponding to the maximum working temperature difference value to be turned off according to the operation mode of the multi-split air conditioner includes: under the condition that the operation mode of the multi-split air conditioner is a heating mode, the processor controls the maximum working temperature difference Delta Ti maxClosing the corresponding first indoor unit; or, in case that the operation mode of the multi-split air conditioner is the cooling mode, the processor controls the minimum value delta T of the working temperature differencei minThe corresponding second indoor unit is closed. In this way, the embodiment of the present disclosure can select the most appropriate indoor unit to perform the shutdown process first for different operation modes. When each indoor unit meets the first preset condition, even if the backflow problem causes the sensing distortion of the temperature sensor corresponding to the backflow indoor unit, the embodiment of the disclosure can also ensure that the backflow indoor unit cannot be shut down at the beginning. Thereby improving the accuracy of the test.
Optionally, every preset shutdown duration, the processor controls the remaining indoor units to be turned off one by one according to the recalculated working temperature difference, including: the processor recalculates the working temperature difference of the indoor units in the rest operation every preset shutdown time; and under the condition that the working temperature difference of the indoor units in the rest operation meets a second preset condition, the processor controls the rest indoor units to be closed one by one. In this way, the embodiment of the present disclosure can further limit the process of turning off the remaining indoor units one by adding a new judgment condition. The remaining indoor units are controlled to be shut down only under the condition that the working temperature differences of the indoor units in the remaining operation meet the second preset condition, so that the indoor units which are reversely flowed in the remaining indoor units can be prevented from being shut down in advance due to distortion of ambient temperature sensing. Thereby improving the accuracy of the test.
Optionally, the preset shutdown duration may be adjusted according to the test requirement. Preferably, the preset power-off time period may be set to 5 min. Other arbitrary values such as 4min or 6min may be set. Therefore, the method and the device can ensure that the residual indoor units can be normally started to operate for a corresponding time length. When the indoor unit blows air normally for a certain time, the adverse effect caused by the reverse flow of the blown air of other indoor units can be weakened, and the ambient temperature detected by the temperature sensor gradually approaches to the real temperature. Therefore, the accuracy of the test is further improved.
Referring to fig. 3, another method for testing a multi-split air conditioner according to an embodiment of the present disclosure includes:
s301, the processor determines the current operation mode of the multi-split air conditioner.
And S302, calculating the working temperature difference of each currently running indoor unit by the processor.
And S303, comparing the working temperature differences by the processor under the condition that the working temperature differences of the running indoor units meet a first preset condition, and determining the maximum working temperature difference.
And S304, the processor controls the indoor unit corresponding to the maximum working temperature difference value to be closed according to the running mode of the multi-split air conditioner.
And S305, recalculating the working temperature difference of the indoor units in the rest running by the processor at preset shutdown time intervals.
And S306, judging whether the working temperature difference of the indoor units in the rest running meets a second preset condition by the processor.
And S307, under the condition that the working temperature difference of the indoor units in the rest running process meets a second preset condition, controlling the rest indoor units to be closed one by the processor.
By adopting the method for testing the multi-split air conditioner, which is provided by the embodiment of the disclosure, the working temperature difference of each indoor unit is calculated, and whether the working temperature difference meets a first preset condition is judged. Under the condition that all the indoor units meet a first preset condition, determining the maximum value in the working temperature difference, and combining the operation mode of the multi-split air conditioner to shut down the indoor unit corresponding to the maximum value or the minimum value firstly. And then recalculating the working temperature difference at intervals, and judging whether the working temperature differences of the rest indoor units meet a second preset condition. If the current time is equal to the preset time, controlling to close one of the rest indoor units in the period of time so as to complete the one-by-one shutdown of the rest indoor units. The embodiment of the disclosure can ensure that all indoor units can be normally started and operated, and the indoor units are controlled to be closed one by one according to the working temperature difference, so that the phenomenon that part of the indoor units are shut down in advance in the testing process of the multi-split air conditioner can be effectively avoided, and the accuracy of the test is favorably improved.
Optionally, the processor determines the second preset condition in the following manner, including: under the condition that the operation mode of the multi-split air conditioner is a heating mode, the processor determines that the second preset condition is that the working temperature difference is larger than zero; or, in the case that the operation mode of the multi-split air conditioner is the cooling mode, the processor determines that the second preset condition is that the working temperature difference is less than zero. Therefore, the shutdown judgment conditions of the rest indoor units can be respectively set according to the heating mode or the cooling mode, so that the shutdown of the rest indoor units can be more reasonably controlled according to different operation modes. And because the working temperature difference of the indoor units in the rest running process needs to meet the second preset condition, the embodiment of the disclosure can perform time-delay judgment aiming at the test, and avoid that the back-flow problem occurs to cause the back-flow indoor unit to be shut down in advance when most of the indoor units reach the target temperature. Therefore, normal starting operation of the rest indoor units can be ensured, and the accuracy of test testing is improved.
Optionally, the controlling, by the processor, the remaining indoor units to be turned off one by one includes: the processor compares the working temperature difference of the indoor units in the rest operation and determines the most value of the rest working temperature difference; the processor controls the indoor unit corresponding to the residual working temperature difference to be closed according to the running mode of the multi-split air conditioner. Therefore, the embodiment of the disclosure can combine the operation mode of the multi-split air conditioner to shut down one indoor unit corresponding to the maximum value or the minimum value of the working temperature difference in the remaining indoor units at intervals. Therefore, the residual indoor units can be shut down one by one on the premise that the residual indoor units can be normally started to operate. Therefore, the embodiment of the disclosure can effectively avoid the phenomenon that part of the indoor units are shut down in advance in the test process of the multi-split air conditioner, thereby being beneficial to improving the accuracy of test testing.
Optionally, the processor compares the operating temperature differences of the indoor units in the remaining operation, and determines the maximum value of the remaining operating temperature differences, and the processor controls the indoor unit corresponding to the maximum value of the remaining operating temperature differences to be turned off according to the operation mode of the multi-split air conditioner, similar to the specific implementation manner in the foregoing. See the foregoing, and are not described in detail herein.
Referring to fig. 4, another method for testing a multi-split air conditioner according to an embodiment of the present disclosure includes:
s401, the processor determines the current operation mode of the multi-split air conditioner.
S402, the processor calculates the working temperature difference of each indoor unit in operation at present.
And S403, under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing each working temperature difference by the processor, and determining the maximum value of the working temperature difference.
And S404, the processor controls the indoor unit corresponding to the working temperature difference maximum value to be closed according to the operation mode of the multi-split air conditioner.
S405, every preset shutdown time interval, recalculating the working temperature difference of the indoor units in the rest operation by the processor.
S406, the processor judges whether the working temperature differences of the indoor units in the rest running meet a second preset condition.
And S407, controlling the remaining indoor units to be closed one by the processor under the condition that the working temperature difference of the remaining indoor units in operation meets a second preset condition.
And S408, under the condition that the working temperature difference of the indoor units in the rest running does not meet the second preset condition, the processor controls the last closed indoor unit to be turned on again.
By adopting the method for testing the multi-split air conditioner, which is provided by the embodiment of the disclosure, the working temperature difference of each indoor unit is calculated, and whether the working temperature difference meets a first preset condition is judged. Under the condition that all the indoor units meet a first preset condition, determining the maximum value in the working temperature difference, and combining the operation mode of the multi-split air conditioner to shut down the indoor unit corresponding to the maximum value or the minimum value firstly. And then recalculating the working temperature difference at intervals, and judging whether the working temperature differences of the rest indoor units meet a second preset condition. If the current time is equal to the preset time, controlling to close one of the rest indoor units in the period of time so as to complete the one-by-one shutdown of the rest indoor units. If not, the indoor units which are just closed are restarted, so that the situation that the remaining indoor units are not enough to maintain the current ambient temperature is avoided to be continued all the time. The embodiment of the disclosure can ensure that all indoor units can be normally started and operated, and the indoor units are controlled to be closed one by one according to the working temperature difference, so that the phenomenon that part of the indoor units are shut down in advance in the testing process of the multi-split air conditioner can be effectively avoided, and the accuracy of the test is favorably improved.
In the embodiments of the present disclosure, reference may be made to the foregoing descriptions for specific execution manners of the relevant steps, which are not described herein again.
Referring to fig. 5, another method for testing a multi-split air conditioner according to an embodiment of the present disclosure includes:
s501, the processor determines the current operation mode of the multi-split air conditioner.
And S502, calculating the working temperature difference of each currently running indoor unit by the processor.
And S503, under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing each working temperature difference by the processor, and determining the maximum value of the working temperature difference.
And S504, the processor controls the indoor unit corresponding to the working temperature difference maximum value to be closed according to the running mode of the multi-split air conditioner.
And S505, recalculating the working temperature difference of the indoor units in the rest operation by the processor at preset shutdown time intervals.
S506, the processor judges whether the working temperature differences of the indoor units in the rest running meet a second preset condition; if not, executing step S507; if yes, go to step S508.
S507, the processor controls the last closed indoor unit to be restarted and runs for a preset working time; and then returns to perform step S501.
And S508, comparing the working temperature difference of the indoor units in the rest operation by the processor, and determining the most value of the rest working temperature difference.
And S509, controlling the indoor unit corresponding to the residual working temperature difference to be closed by the processor according to the running mode of the multi-split air conditioner.
S510, judging whether all indoor units are closed by a processor; if not, returning to execute the step S506; if yes, go to step S511.
S511, the processor turns off the compressor and the outdoor unit.
By adopting the method for testing the multi-split air conditioner, which is provided by the embodiment of the disclosure, the working temperature difference of each indoor unit is calculated, and whether the working temperature difference meets a first preset condition is judged. Under the condition that all the indoor units meet a first preset condition, determining the maximum value in the working temperature difference, and combining the operation mode of the multi-split air conditioner to shut down the indoor unit corresponding to the maximum value or the minimum value firstly. And then recalculating the working temperature difference every other preset shutdown time length, and judging whether the working temperature differences of the rest indoor units meet a second preset condition. If the working temperature difference is equal to or less than the preset value, the indoor units are not completely closed, and the operation mode of the multi-split air conditioner is combined to shut down one indoor unit corresponding to the maximum value or the minimum value of the working temperature difference in the rest indoor units. And returning to the second preset condition for cyclic judgment, thereby completing the one-by-one shutdown of the rest indoor units. If not, the indoor units which are just closed are restarted, so that the situation that the remaining indoor units are not enough to maintain the current ambient temperature is avoided to be continued all the time. Meanwhile, after the newly started indoor unit operates for a preset working time, the judgment of the first preset condition is jumped back, so that the indoor unit can be prevented from being shut down in advance due to reverse flow of blowing air by utilizing time delay judgment. After all the indoor units are closed, the compressor and the outdoor unit are closed, so that the test work of the whole unit is stopped, and the electric energy consumption is saved in time. Therefore, the embodiment of the disclosure can ensure that all indoor units can be normally started and operated, and the indoor units are controlled to be closed one by one according to the working temperature difference. Therefore, the phenomenon that part of indoor units are shut down in advance in the testing process of the multi-split air conditioner is effectively avoided, and the accuracy of test testing is improved.
In the embodiments of the present disclosure, reference may be made to the foregoing descriptions for specific execution manners of the relevant steps, which are not described herein again.
Optionally, the preset working time can be adjusted according to the test requirement. Preferably, the preset operation time period may be set to 5 min. Other arbitrary values such as 4min or 6min may be set. Therefore, the method and the device can ensure that the restarted indoor unit can be normally started to operate for a corresponding time length. Therefore, after the indoor unit blows air normally for a certain period of time, the adverse effect caused by the backward flow of the blown air of other indoor units can be weakened as much as possible, and the ambient temperature detected by the temperature sensor approaches to the real temperature. Therefore, the accuracy of the test is further improved.
As shown in fig. 6, an embodiment of the present disclosure provides an apparatus for testing a multi-split air conditioner, which includes a processor (processor)601 and a memory (memory) 602. Optionally, the apparatus may also include a Communication Interface 603 and bus 604. The processor 601, the communication interface 603, and the memory 602 may communicate with each other via the bus 604. Communication interface 603 may be used for information transfer. The processor 601 may call logic instructions in the memory 602 to perform the method for the one-drive-many air conditioner test of the above-described embodiment.
Furthermore, the logic instructions in the memory 602 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 602 is a computer-readable storage medium and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 601 executes functional applications and data processing by executing program instructions/modules stored in the memory 602, that is, the method for testing the multi-split air conditioner in the above embodiment is implemented.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, memory 602 may include high speed random access memory and may also include non-volatile memory.
The embodiment of the disclosure provides a multi-split air conditioner, which comprises an outdoor unit, an indoor unit, a temperature sensor and the device for testing the multi-split air conditioner. Wherein, the indoor set has a plurality ofly, and every indoor set all is provided with the air outlet. The temperature sensors are multiple, each temperature sensor is arranged on one side of an air outlet of the indoor unit, and the temperature sensors are in one-to-one correspondence with the indoor units.
The embodiment of the disclosure provides a storage medium, which stores computer-executable instructions, and when the computer-executable instructions are operated, the method for testing a multi-split air conditioner is executed.
The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosure, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A method for testing a multi-split air conditioner, wherein the multi-split air conditioner comprises an outdoor unit and a plurality of indoor units, and the method comprises the following steps:
determining the current operation mode of the multi-split air conditioner;
calculating the working temperature difference of each currently running indoor unit;
under the condition that the working temperature difference of each running indoor unit meets a first preset condition, comparing the working temperature differences and determining the maximum value of the working temperature differences;
controlling an indoor unit corresponding to the maximum working temperature difference to be closed according to the operation mode of the multi-split air conditioner;
and (4) presetting shutdown duration at intervals, and controlling the rest indoor units to be closed one by one according to the recalculated working temperature difference.
2. The method of claim 1, wherein the calculating the operating temperature difference of each currently operating indoor unit comprises:
determining a target temperature Ta according to the operation mode of the multi-split air conditioner;
obtaining the current ambient temperature Tb detected by each indoor unit in operationi；
Calculating Δ Ti＝TbiTa, obtaining the working temperature difference Delta T of each indoor uniti；
Wherein i is 1, 2, …, N.
3. The method as claimed in claim 2, wherein the determining the target temperature Ta according to the operation mode of the one-dragging-air conditioner comprises:
determining the target temperature Ta as the heating target temperature Ta under the condition that the operation mode of the multi-split air conditioner is the heating mode1(ii) a Alternatively, the first and second electrodes may be,
under the condition that the operation mode of the multi-split air conditioner is a refrigeration mode, determining the target temperature Ta as a refrigeration target temperature Ta2；
Wherein, Ta1＞Ta2。
4. The method as claimed in claim 1, wherein the controlling of the indoor unit corresponding to the operation temperature difference maximum value to be turned off according to the operation mode of the one-dragging-more air conditioner comprises:
controlling the maximum value delta T of the working temperature difference under the condition that the operation mode of the multi-split air conditioner is a heating modei maxClosing the corresponding first indoor unit; alternatively, the first and second electrodes may be,
controlling the minimum value delta T of the working temperature difference under the condition that the operation mode of the multi-split air conditioner is the cooling modei minThe corresponding second indoor unit is closed.
5. The method of claim 1, wherein the first preset condition is determined in a manner comprising:
under the condition that the operation mode of the multi-split air conditioner is a heating mode, determining that the first preset condition is that the working temperature difference is larger than a first preset value; alternatively, the first and second electrodes may be,
under the condition that the operation mode of the multi-split air conditioner is a refrigeration mode, determining that the first preset condition is that the working temperature difference is smaller than a second preset value;
wherein, the first preset value is larger than zero, and the second preset value is smaller than zero.
6. The method according to any one of claims 1 to 5, wherein controlling the remaining indoor units to be turned off one by one according to the recalculated operating temperature difference every interval of a preset shutdown duration comprises:
recalculating the working temperature difference of the indoor units in the rest operation every preset shutdown time;
and under the condition that the working temperature difference of the indoor units in the rest operation meets a second preset condition, controlling the rest indoor units to be closed one by one.
7. The method of claim 6, further comprising:
and under the condition that the working temperature difference of the indoor units in the rest running does not meet the second preset condition, controlling the last closed indoor unit to be turned on again.
8. An apparatus for a split-multi air conditioner test, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for a split-multi air conditioner test of any one of claims 1 to 7 when executing the program instructions.
9. A multi-split air conditioner, comprising:
an outdoor unit;
a plurality of indoor units provided with air outlets;
the temperature sensors are arranged on one side of the air outlet of the indoor unit and correspond to the indoor units one to one; and the combination of (a) and (b),
the apparatus for a multi-split air conditioner test as set forth in claim 8.
10. A storage medium storing program instructions which, when executed, perform a method for a split-multi air conditioner test as claimed in any one of claims 1 to 7.
CN202210048364.1A 2022-01-17 2022-01-17 Method and device for testing one-to-many air conditioner and one-to-many air conditioner Active CN114508826B (en)

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