Control method, device and equipment of duct type air conditioner and storage medium

Abstract

The invention discloses a control method of a duct type air conditioner, the duct type air conditioner is connected with air valves of multiple partitions through multiple partition connectors, and the method comprises the steps that if the working state of the air valve of at least one partition changes, the air volume demand proportion of the air valves of the multiple partitions is obtained; according to the air volume demand proportion of the air valves of the multiple subareas and the opening degrees of the air valves of the multiple subareas, the total air volume demand of the multiple subareas is determined; and adjusting the rotating speed of a fan of the duct type air conditioner according to the total air volume requirement.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the field of air treatment technology, and in particular to a control method, device, equipment and storage medium for a duct air conditioner. Background Art

[0002] At present, when there are multiple partitions with air volume requirements, the duct unit can connect the rooms where different partitions are located through multiple air supply ducts to control the air volume of multiple partitions through the duct unit. In the related art, the air volume is usually directly controlled by the number of terminal air valves opened. When the air valve of a partition is closed, the method in the related art will affect the air volume of other partitions, and the problem of accurate control of the duct unit cannot be achieved. Summary of the invention

[0003] The present application provides a control method, device, equipment and storage medium for a duct air conditioner, which solves the problem in the related art of using the number of terminal air valves opened to control the air volume, so that when the air valve in one partition is closed, the air volume in other partitions will be affected, making it impossible to achieve precise control of the duct air conditioner.

[0004] The technical solution of this application is implemented as follows:

[0005] A control method for a ducted air conditioner, wherein the ducted air conditioner is connected to air valves of multiple zones through multiple zone interfaces, characterized in that the method comprises:

[0006] If the working state of the air valve of at least one of the partitions changes, the air volume demand ratios of the air valves of the multiple partitions are obtained;

[0007] Determining the total air volume demand of the multiple partitions according to the air volume demand proportions of the air valves of the multiple partitions and the openings of the air valves of the multiple partitions;

[0008] The fan speed of the duct fan is adjusted according to the total air volume demand.

[0009] A control device for a duct machine, characterized by comprising:

[0010] A first processing module, configured to obtain the air volume demand ratios of the air valves of the plurality of partitions if the working state of the air valve of at least one partition changes;

[0011] A first processing module, configured to determine the total air volume requirements of the plurality of partitions according to the air volume requirement ratios of the air valves of the plurality of partitions and the openings of the air valves of the plurality of partitions;

[0012] The second processing module is used to adjust the fan speed of the duct fan according to the total air volume demand.

[0013] A control device for a duct machine, characterized by comprising:

[0014] A memory for storing executable instructions;

[0015] The partition controller is used to execute the executable instructions stored in the memory to implement the above-mentioned control method of the duct machine.

[0016] A storage medium stores one or more programs, and the one or more programs can be executed by one or more partition controllers to implement the steps of the above-mentioned control method of the duct machine.

[0017] The control method of the duct machine provided in the embodiment of the present application, the duct machine is connected to the air valves of multiple partitions through multiple partition interfaces, and the method includes: if the working state of the air valve of at least one partition changes, the air volume demand ratio of the air valves of the multiple partitions is obtained; according to the air volume demand ratio of the air valves of the multiple partitions and the opening of the air valves of the multiple partitions, the total air volume demand of the multiple partitions is determined; according to the total air volume demand, the fan speed of the duct machine is adjusted. It solves the problem that the method of controlling the opening size of the terminal air valve in the related art is used to control the air volume, which cannot fully consider the multiple factors affecting the air volume, and there are problems of low control efficiency and inaccurate control. The control method of the duct machine provided in the present application is to control the fan speed of the duct machine according to the air volume demand ratio of the air valves of the multiple partitions and the opening of the air valves of the multiple partitions to adjust the air volume to maintain the relative constancy of the air volume, so as to realize the partition constant air volume control of the duct machine, so as to achieve a more efficient and more accurate control effect, which can effectively reduce the system noise and improve the user comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A flow chart of a control method for a duct machine provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a zoning control system for a ducted air conditioner provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a control device for a duct machine provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the structure of a control device for a duct air conditioner provided in an embodiment of the present application;

[0022] Figure 5 A flowchart of a control method in a practical application scenario provided by an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0024] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0025] In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0027] The embodiment of the present application provides a control method for a ducted air conditioner, wherein the ducted air conditioner is connected to air valves of multiple zones through multiple zone interfaces, referring to Figure 1 As shown, the method comprises the following steps:

[0028] Step 101: If the working state of the air valve of at least one partition changes, the air volume demand ratio of the air valves of multiple partitions is obtained.

[0029] It can be understood that the execution subject of this embodiment may be a partition controller, which has functions of data processing, data communication, and program running, etc. In the following, the execution subject is described by taking the partition controller as an example.

[0030] It can be understood that the air valve in the present application is an adjustable opening air valve, and the change in the working state of the air valve may include the air valve opening, the air valve closing, the air valve opening increasing, and the air valve opening decreasing. The air volume demand ratio of the air valve may be the ratio of the number of air valves in at least one partition to the total number of air valves in all partitions.

[0031] The openings of the air valves of the multiple partitions are judged. If the opening of the air valve of at least one partition changes, it means that the air volume demand of the space where at least one partition is located has changed, and it is necessary to perform constant air volume control in the partition to maintain the constant air volume. The ratio of the number of air valves of at least one partition to the total number of air valves of all partitions is first calculated and summarized to obtain the ratio of the number of air valves of multiple partitions to the total number of air valves of all partitions.

[0032] The opening of the air valve can be expressed as an opening percentage, which is used to indicate the actual amount of air that can flow through the air valve. For example, if the opening of the air valve is 20%, it means that the actual amount of air that can flow through the air valve is 20%.

[0033] Step 102: Determine the total air volume demand of the multiple partitions according to the air volume demand ratios of the air valves of the multiple partitions and the openings of the air valves of the multiple partitions.

[0034] In an embodiment of the present application, the ratio of the number of air valves in multiple partitions to the total number of air valves in all partitions can be multiplied by the opening of the air valves in the multiple partitions to obtain the air volume requirements of the multiple partitions, and the air volume requirements of the multiple partitions can be added to obtain the total air volume requirements of the multiple partitions.

[0035] For example, when the total number of air valves in three partitions is 3, the air volume demand of the air valves in these three partitions accounts for 1 / 3. When the air valve openings of the three partitions are 60%, 100%, and 80%, the air volume demand of each of the three partitions is calculated to be 20%, 33%, and 26%, respectively. The total air volume demand of the three partitions is 79%.

[0036] Step 103: Adjust the fan speed of the duct fan according to the total air volume demand.

[0037] In the embodiment of the present application, when the total air volume demand of multiple partitions is determined, the fan of the duct machine is controlled to adjust the fan speed according to the total air volume demand. It can be understood that when the air valve opening of at least one partition becomes smaller or closed, the total air volume demand will become smaller. At this time, if the fan maintains the original speed, the total air volume output is larger than the system demand. When the larger total air volume is allocated to other partitions, the air volume of other partitions will increase, the noise will increase, and the user comfort will be reduced. Therefore, at this time, it is necessary to adaptively reduce the fan speed of the duct machine, reduce the total air volume output, and make the air volume of each partition return to the initial setting, so as to maintain the relative constancy of each partition component and realize the constant air volume control of the partition.

[0038] The control method of the duct machine provided in the embodiment of the present application, the duct machine is connected to the air valves of multiple partitions through multiple partition interfaces, and the method includes: if the working state of the air valve of at least one partition changes, the air volume demand ratio of the air valves of the multiple partitions is obtained; according to the air volume demand ratio of the air valves of the multiple partitions and the opening of the air valves of the multiple partitions, the total air volume demand of the multiple partitions is determined; according to the total air volume demand, the fan speed of the duct machine is adjusted. It solves the problem that the method of controlling the opening size of the terminal air valve in the related art is used to control the air volume, which cannot fully consider the multiple factors affecting the air volume, and there are problems of low control efficiency and inaccurate control. The control method of the duct machine provided in the present application is to control the fan speed of the duct machine according to the air volume demand ratio of the air valves of the multiple partitions and the opening of the air valves of the multiple partitions to adjust the air volume to maintain the relative constancy of the air volume, so as to realize the partition constant air volume control of the duct machine, so as to achieve a more efficient and more accurate control effect, which can effectively reduce the system noise and improve the user comfort.

[0039] In the related art, the air volume and static pressure required by the system can be calculated by testing the parameters of each partition under various working conditions, and a corresponding database can be established. In actual work, the corresponding static pressure and air volume in the database need to be called according to the conditions of each partition before the fan speed can be further calculated. However, the control method of the related art requires testing a large amount of data, and when using weighted testing, the static pressure and air volume requirements are determined only based on the number of air valves, and the impact of the actual working state of each air valve on the system is not considered, resulting in large deviations when the wind speed is calculated based on the static pressure and air volume requirements under this method. Furthermore, the database resume requires a huge amount of data testing, which further slows down the wind speed calculation cycle, resulting in low control efficiency, slowing down the system air volume stabilization speed, and causing large noise changes.

[0040] In addition, when calculating wind speed in the related technology, the wind speed closest to the original fan is called, and the air volume is output according to this fixed wind speed. There is no other wind speed selection, which makes the wind speed selection discontinuous and the system adaptability poor. This leads to inaccurate control and reduces user comfort.

[0041] In some embodiments of the present application, obtaining the air volume demand ratios of the air valves of the multiple partitions in step S101 can be achieved by the following steps:

[0042] Obtaining associated parameters of air valves of multiple partitions; the associated parameters include the total number of air valves of multiple partitions and the air valve diameters of the air valves of multiple partitions;

[0043] The air volume demand ratio of the air valves in multiple partitions is determined based on the air valve diameters and the total number of air valves in multiple partitions.

[0044] In the embodiment of the present application, after the total number of air valves of multiple partitions and the air valve calibers of the air valves of multiple partitions are obtained, the ratio of the number of air valves of at least one partition to the total number of air valves of all partitions is calculated, and the air valve caliber coefficient of the air valve of at least one partition is calculated. The ratio of the number of air valves of multiple partitions to the total number of air valves of all partitions and the product of the air valve caliber coefficients of the air valves of multiple partitions are used as the air volume demand ratio of the air valves of the multiple partitions. In this way, by calculating the air volume demand ratio, and then quickly calculating the relationship between the rotation speed and the air volume according to the air volume demand ratio, the air volume adjustment is faster and more efficient.

[0045] Exemplarily, when the air valve calibers of multiple partitions are the same, the air valve caliber coefficients of the air valves of multiple partitions can be 1; when the air valve calibers of multiple partitions are different, different caliber coefficients can be set according to the ratio of the air valve caliber of at least one partition to the average caliber of the air valves of multiple partitions, and the caliber coefficient can be any number between 0-100%.

[0046] In some embodiments of the present application, in step S103, adjusting the fan speed of the duct fan according to the total air volume demand can be achieved by the following steps:

[0047] Get the maximum speed and minimum speed in static pressure mode;

[0048] Adjust the fan speed of the duct air conditioner according to the total air volume demand, maximum speed and minimum speed.

[0049] Among them, according to the maximum speed and minimum speed under the static pressure mode obtained, as well as the total air volume demand, the fan speed of the duct fan under the total air volume demand is calculated, and the fan is controlled to run at the speed. In this way, it can be avoided that when the air volume demand of one of the multiple partitions changes, the air volume delivered by the duct fan to other partitions increases, the system noise increases, and the user comfort is reduced; the total air volume demand of the system is obtained by calculating the actual air volume demand of the air valves of multiple partitions, and the fan speed is adjusted according to the total air volume demand, so that the wind speed and air volume of each partition return to the initial demand value, so that when the total air volume demand of the system changes, the air volume of each partition can still be maintained relatively constant, so as to achieve more efficient and more accurate partition constant air volume control.

[0050] In the embodiment of the present application, the fan speed of the duct fan is adjusted according to the total air volume requirement, the maximum speed and the minimum speed, which can be achieved by the following steps:

[0051] Get the speed adjustment parameters;

[0052] Get the difference between the maximum speed and the minimum speed;

[0053] Adjust the fan speed of the duct fan according to the difference, speed adjustment parameter, total air volume demand and minimum speed.

[0054] In the embodiment of the present application, the fan speed of the duct fan can be calculated based on the difference between the maximum speed and the minimum speed, the speed adjustment parameter, the total air volume requirement and the minimum speed.

[0055] Exemplarily, the rotation speed adjustment parameter may be a parameter when a user inputs control information to the system. It can be understood that the rotation speed adjustment parameter may be control information for indicating a wind speed level.

[0056] In the embodiment of the present application, the fan speed of the duct fan is adjusted according to the total air volume requirement, the maximum speed and the minimum speed, which can also be achieved by the following steps:

[0057] Get the speed adjustment parameters;

[0058] Determine a gear position corresponding to the speed adjustment parameter from a plurality of pre-set gear positions; wherein there is a one-to-one relationship between the gear position and the range to which the value of the speed adjustment parameter belongs;

[0059] Get the difference between the maximum speed and the minimum speed;

[0060] Determine the speed corresponding to the gear according to the difference, total air volume demand and minimum speed;

[0061] Adjust the fan speed to the speed corresponding to the gear position.

[0062] In the embodiment of the present application, after obtaining the speed adjustment parameter, the gear corresponding to the speed adjustment parameter is determined from the pre-set gears, and then the speed of the fan corresponding to the gear corresponding to the speed adjustment parameter is calculated according to the difference between the maximum speed and the minimum speed, the total air volume demand and the minimum speed, and the fan is controlled to operate at the speed corresponding to the gear corresponding to the speed adjustment parameter. There is a one-to-one relationship between the gear and the range to which the value of the speed adjustment parameter belongs. The calculation formula is as follows:

[0063] Y=(MAX-MIN)*G*E+MIN (1)

[0064]

[0065]

[0066] G=a% (4)

[0067] Where, Y is the speed of the fan, r / min;

[0068] MAX is the maximum speed of the fan, r / min;

[0069] MIN is the minimum speed of the fan, r / min;

[0070] E is the percentage of total air volume demand, %;

[0071] G is the speed adjustment parameter, %;

[0072] Ei is the proportion of air volume demand of each air valve. When the diameter of the air valve is the same, Ei = 1 / n;

[0073] Ki is the opening degree of each air valve, %;

[0074] nTotal number of air valves.

[0075] Exemplarily, five gears can be pre-set, including ultra-high wind gear, high wind gear, medium wind gear, low wind gear and silent gear, and the corresponding speed adjustment parameters can be 100%, 80%, 60%, 40%, and 0. When the speed adjustment parameter obtained is a wind speed of 80%, the gear corresponding to the wind speed of 80% is determined to be the high wind gear from the pre-set gears. When the speed adjustment parameter obtained is a wind speed of 86%, since 86% falls between 80%-100% and is closer to 80%, it is determined that the range to which the wind speed of 86% belongs is 80%, so from the pre-set gears, the gear corresponding to the wind speed of 80% is determined to be the high wind gear.

[0076] For example, a gear that can be infinitely variable in the range of 0-100% can be pre-set. When the speed adjustment parameter obtained is 86% of the wind speed, the gear corresponding to 86% of the wind speed is directly determined from the pre-set gear. In this way, the speed of the fan that changes dynamically over time can be calculated by real-time acquisition of the speed adjustment parameter, which will not be affected by the fixed wind gear of the original duct machine, and can achieve continuous and infinitely variable regulation, achieve more precise and subtle adjustments, and improve the reliability and stability of the system. Furthermore, through continuous and infinitely precise regulation, the system can achieve true on-demand changes, making the system more energy-efficient.

[0077] In the embodiment of the present application, the multiple gears include multiple regular gears and silent gears; the fan speed is the minimum speed in the silent gear, and the speed in the regular gear is greater than the minimum speed.

[0078] Among them, in the normal gear, the obtained speed adjustment parameter is a number greater than 0; in the silent gear, the obtained speed adjustment parameter is 0.

[0079] When the gear corresponding to the speed adjustment parameter is a normal gear, the speed of the fan corresponding to the normal gear is calculated according to the difference between the maximum speed and the minimum speed, the total air volume requirement and the minimum speed. In this way, by parameterizing the gear, the speed of the fan corresponding to the gear can be accurately calculated, so that the fan speed can be accurately adjusted to the speed corresponding to the gear, making the control more precise.

[0080] When the gear corresponding to the speed adjustment parameter is the silent gear, the minimum speed is directly used as the speed of the fan. In this way, the calculation amount of the fan speed is simplified, making the control faster and more efficient.

[0081] In the embodiment of the present application, obtaining the maximum speed and the minimum speed in the static pressure mode can be achieved by the following steps:

[0082] Obtaining air duct parameters of the air duct from the air duct machine to the multiple zone interfaces;

[0083] Setting the static pressure value according to the air duct parameters;

[0084] Get the maximum and minimum speeds at the static pressure value.

[0085] Among them, the duct parameters may include duct length and duct width; wherein the duct length is the distance from the duct unit to multiple partition interface ducts; based on the duct parameters and the reference static pressure setting value per unit length, the static pressure value of the duct unit is calculated, and the maximum speed and minimum speed of the fan under the static pressure value are obtained to ensure the static pressure stability during system operation.

[0086] Exemplarily, the reference static pressure setting value per unit length can be set to 5Pa, or can be set according to actual needs, which is not limited in this application.

[0087] Some embodiments of the present application provide a schematic diagram of a zoning control system for a ducted air conditioner, referring to Figure 2 As shown, the partition control system 200 of the duct unit includes: a partition controller 201, a partition sub-controller 202, a power supply 203, a damper 204, a control panel 205, an outdoor unit 206, a duct unit 207, and a partition interface 208.

[0088] The partition controller 201 is connected to the partition sub-controller 202, the power supply 203, the air valve 204, the partition controller control panel 205, the outdoor unit 206, and the duct unit 207 through the wiring port, and is used to perform partition control according to the instructions issued by the control panel 205.

[0089] The duct machine 207 has a fan 209 therein; the duct machine 207 is connected to the outdoor unit 206 through a refrigerant system; the duct machine 207 is connected to multiple partition interfaces 208 through multiple air supply ducts, and is used to introduce the air-conditioning air generated by the duct machine 207 into the space where each partition interface 208 is located through each air supply duct; the fan 209 is used to control the amount of air introduced into the space where each partition interface 208 is located.

[0090] A partition interface 208 is provided at the end of the partition interface 208 with an air valve 204 for distributing the air supply duct to each space through the air valve.

[0091] The partition sub-controller 202 detects the air valve opening size and the speed adjustment parameter of the air valve 204, and when the speed adjustment parameter is the wind gear input signal, sends the air valve opening size and the wind gear input signal to the partition controller 201.

[0092] The power supply 203 is used to supply power to the partition controller.

[0093] Exemplarily, the duct machine 207 may use a variable speed DC motor.

[0094] The embodiment of the present application provides a control device for a duct machine, referring to Figure 3 As shown, the control device 300 of the air duct machine includes: a first processing module 301 and a second processing module 302 .

[0095] The first processing module 301 is used to obtain the air volume demand ratio of the air valves of multiple partitions if the working state of the air valve of at least one partition changes;

[0096] The second processing module 301 is used to determine the total air volume demand of the multiple partitions according to the air volume demand ratios of the air valves of the multiple partitions and the openings of the air valves of the multiple partitions;

[0097] The third processing module 302 is used to adjust the fan speed of the duct fan according to the total air volume demand.

[0098] The present application embodiment provides a control device for a duct machine, referring to Figure 4 As shown, the control device 400 of the duct machine includes: a memory 401 and a partition controller 402.

[0099] The memory 401 is used to store computer executable instructions that can be run on the partition controller 402 ; the memory 401 and the partition controller 402 can be connected via a communication line 403 .

[0100] The partition controller 402 is used to execute the computer executable instructions stored in the memory 401 to implement the steps of the control method of the air duct machine provided in the above embodiment, which will not be repeated here.

[0101] In the embodiment of the present application, control is performed through system software logic. In actual applications, the original system can be directly upgraded and modified by setting parameters and loading and running program packages, thereby realizing the steps corresponding to the control method in the present application. The system has simple debugging and easy operation, and does not require changing the system hardware, and has strong applicability.

[0102] Next, when the working state of the air valve changes, the control process is described by taking the duct machine provided in this application for zone constant air volume control as an example, combined with the control method of the duct machine, see Figure 5 As shown:

[0103] Step 501, according to the length of the air duct, set the maximum speed MAX and the minimum speed MIN under the static pressure value P, where MAX is the speed under rated full load and MIN is the speed under silent operation; when the partition controller detects that the working state of each air valve has changed, enter step 502. Step 502, count the total number of installed air valves n, and count the opening Ki of each air valve (0≤Ki≤100%). Step 503, calculate the proportion of air volume demand of each air valve Ei=1 / n (the air valves have the same diameter). Step 504, calculate the total air volume demand E (0≤E≤100%), the total air volume demand E is the product of the proportion of air volume demand of each air valve Ei and the opening Ki of each air valve.

[0104] Step 505, control the fan of the duct air conditioner to run at the speed corresponding to the wind speed, wherein the five preset fixed wind speeds include: ultra-high wind speed, high wind speed, medium wind speed, low wind speed and silent wind speed, and the speed of the fan corresponding to each wind speed is calculated as follows:

[0105] Ultra-high wind speed = (MAX-MIN)*E+MIN;

[0106] High wind speed = (MAX-MIN)*0.8E+MIN;

[0107] Stroke level = (MAX-MIN)*0.6E+MIN;

[0108] Low wind speed = (MAX-MIN)*0.4E+MIN;

[0109] Silent mode = MIN.

[0110] In addition, when the speed adjustment parameter obtained in real time is a%, it is determined to be a stepless gear. The stepless wind speed includes 100 stepless gears corresponding to 0-100%. The speed of the fan corresponding to the stepless wind speed is calculated as: a% wind speed = (MAX-MIN)*a%*E+MIN.

[0111] Below, in the scenario where the duct air conditioner is running at full load, referring to Table 1, a partition design and air valve selection table is provided, and the control method of the duct air conditioner under full load operation is described as follows in combination with Table 1:

[0112] The zoning design is carried out based on the total air volume demand when the duct unit is operating at full load, and the contents include the zone number, function, area, capacity requirement, air volume demand, designed air valve, and air valve serial number.

[0113] In the first step, take a user's seven rooms with different functions as an example, set up seven corresponding partitions respectively, and calculate the capacity requirements of each partition according to the functions and areas of the seven partitions as follows:

[0114] Partition 1, living room, area 30 square meters, unit capacity requirement 200W, capacity requirement 30*200=6000W;

[0115] Zone 2, restaurant, area 10 square meters, unit capacity requirement 200W, capacity requirement 10*200=2000W;

[0116] Partition 3, kitchen, area 10 square meters, unit capacity requirement 200W, capacity requirement 10*200=2000W;

[0117] Partition 4, study, area 10 square meters, unit capacity requirement 250W capacity requirement 10*250=2500W;

[0118] Partition 5, bedroom 1, area 20 square meters, unit capacity requirement 200W, capacity requirement 20*200=4000W;

[0119] Partition 6, bedroom 2, area 10 square meters, unit capacity requirement 200W, capacity requirement 10*200=2000W;

[0120] Partition 7, bedroom 3, area 10 square meters, unit capacity requirement 200W, capacity requirement 10*200=2000W.

[0121] The second step is to obtain the maximum speed and minimum speed in static pressure mode.

[0122] Based on the duct length of 20 meters and the unit static pressure value of 5Pa, the set static pressure value is calculated to be 100Pa; the maximum speed under the set static pressure value of 100Pa is Max=1100r / min and the minimum speed is Min=500r / min.

[0123] The third step is to obtain the maximum and minimum air volumes.

[0124] The duct machine runs at full load at the maximum speed, with a maximum air volume of 5000m 3 / h; The duct air conditioner runs at full load at the minimum speed, and the minimum air volume output is 500m 3 / h.

[0125] The fourth step is to allocate the air volume requirements for each room.

[0126] According to the maximum air volume of the duct machine 5000m 3 / h, and allocate the maximum air volume demand to each zone according to its capacity requirements.

[0127] The fifth step is to select the air valve according to the maximum air volume demand of each zone.

[0128] According to the maximum air volume requirement of each zone, when the D250 air valve is selected, 3 air valves are designed accordingly; the same applies to the rest.

[0129] Step 6: Mark the damper numbers in ascending order, and make a partition design and damper selection table based on the partition number, function, area, capacity requirement, air volume requirement, design damper, and damper number, as shown in Table 1:

[0130] Function <![CDATA[Area m 2 > Capacity Requirements <![CDATA[Air volume demand m 3 / h]]> Design air valve Air valve serial number Partition 1 living room 30 6000 1500 3, specification: D250 1、2、3 Partition 2 Dining room 10 2000 500 1, specification: D250 4 Partition 3 kitchen 10 2000 500 1, specification: D250 5 Partition 4 study 10 2500 500 1, specification: D250 6 Zone 5 Bedroom 1 20 4000 1000 2, specification: D250 7、8 Zone 6 Bedroom 2 10 2000 500 1, specification: D250 9 Partition 7 Bedroom 3 10 2000 500 1, specification: D250 10 total <![CDATA[100m 2 ]]> 20.5KW <![CDATA[5000m 3 / h]]> 10 D250

[0131] Table 1

[0132] Step 7: Under full load operation, according to the total air volume demand of 100%, control the fan of the duct air conditioner to run at the speed corresponding to the wind gear. Among them, the pre-set 5 fixed wind gears include: ultra-high wind gear, high wind gear, medium wind gear, low wind gear and silent wind gear. The speed of the fan corresponding to each wind gear is calculated as follows:

[0133] Ultra-high wind speed, fan speed = (1100-500) * 100% + 500 = 1100r / min;

[0134] High wind speed, fan speed = (1100-500) * 100% * 0.8 + 500 = 980r / min;

[0135] Medium speed, fan speed = (1100-500) * 100% * 0.6 + 500 = 860r / min;

[0136] Low wind speed, fan speed = (1100-500) * 100% * 0.4 + 500 = 740r / min;

[0137] Silent gear, fan speed = 500r / min.

[0138] In addition, when the speed adjustment parameter obtained in real time is 73%, it is determined to be the stepless gear, and the fan speed = (1100-500)*100%*0.73+500 = 938 r / min.

[0139] The speed adjustment parameter is obtained from the five preset gears or in real time, the gear corresponding to the speed adjustment parameter is determined, and the fan is controlled to run at the speed corresponding to the determined gear.

[0140] For example, under full load operation, the maximum rated air volume of the duct air conditioner is 5000m 3 / h is taken as the maximum total air volume, the air volume demand of each air valve is calculated to account for 100%, and the total air volume demand is 100%. When it is detected that the wind speed signal input by the user is an ultra-high wind speed, the fan of the duct air conditioner is controlled to run at the maximum speed of 1100r / min.

[0141] For example, under full load operation, the minimum rated air volume of the duct air conditioner is 1500m3 / h is taken as the minimum total air volume, the air volume demand of each air valve is calculated to be 100%, and the total air volume demand is 100%. When it is detected that the wind gear signal input by the user is the silent gear, the fan of the duct air conditioner is controlled to run at the minimum speed of 500r / min.

[0142] For example, under full load operation, the air volume demand of each air valve is calculated to account for 100%, and the total air volume demand is 100%. When it is detected that the wind gear signal input by the user is a stepless gear, the speed adjustment parameter is obtained as 73%, and the fan of the duct air conditioner is controlled to run at a speed of 938r / min.

[0143] Next, in the scenario where the ducted air conditioner is operated at partial load, as shown in Table 2, a calculation table for the total air volume requirement under partial load operation is provided, and the control method of the ducted air conditioner under partial load operation is described as follows in combination with Table 2:

[0144]

[0145] Table 2

[0146] The first step is to set the maximum speed to Max=1100r / min and the minimum speed to Min=500r / min at a static pressure of 100Pa according to the length of the duct.

[0147] The second step is to count the total number of installed air valves n as 10, and count the opening Ki of each air valve (0≤Ki≤100%).

[0148] The third step is to calculate the air volume demand ratio of each air valve Ei=1 / 10 (the air valves have the same diameter).

[0149] The fourth step is to calculate the air volume requirement of each air valve.

[0150] The fifth step is to calculate the total air volume demand E as 49.5% (0≤E≤100%). The total air volume demand E is the product of the air volume demand proportion Ei of each air valve and the opening Ki of each air valve, indicating that the duct air conditioner control under partial load operation is required at this time.

[0151] Step 6: Under partial load operation, according to the total air volume demand of 49.5%, the fan of the duct air conditioner is controlled to run at the speed corresponding to the wind gear. Among them, the five preset fixed wind gears include: ultra-high wind gear, high wind gear, medium wind gear, low wind gear and silent wind gear. The speed of the fan corresponding to each wind gear is calculated as follows:

[0152] Ultra-high wind speed, fan speed = (1100-500) * 49.5% + 500 = 797r / min;

[0153] High wind speed, fan speed = (1100-500) * 49.5% * 0.8 + 500 = 737r / min;

[0154] Medium speed, fan speed = (1100-500) * 49.5% * 0.6 + 500 = 678 r / min;

[0155] Low wind speed, fan speed = (1100-500) * 49.5% * 0.4 + 500 = 618r / min;

[0156] Silent gear, fan speed = 500r / min.

[0157] In addition, when the speed adjustment parameter obtained in real time is 73%, it is determined to be the stepless gear, and the fan speed = (1100-500)*49.5%*0.73+500 = 717 r / min.

[0158] The speed adjustment parameter is obtained from the five preset gears or in real time, the gear corresponding to the speed adjustment parameter is determined, and the fan is controlled to run at the speed corresponding to the determined gear.

[0159] Exemplarily, under partial load operation, the air volume demand proportion of each air valve is different, and the calculated total air volume demand is 49.5%. When it is detected that the wind speed signal input by the user is an ultra-high wind speed, the fan of the duct machine is controlled to run at a speed of 797r / min to achieve a constant air volume in the partition.

[0160] Exemplarily, under partial load operation, the air volume demand proportion of each air valve is different, and the calculated total air volume demand is 49.5%. When it is detected that the wind gear signal input by the user is the silent gear, the fan of the duct air conditioner is controlled to run at a speed of 500r / min to achieve a constant air volume in the partition.

[0161] For example, under partial load operation, the air volume demand proportion of each air valve is different, and the calculated total air volume demand is 49.5%. When it is detected that the wind gear signal input by the user is a stepless gear, the speed adjustment parameter is obtained as 73%, and the fan of the duct air conditioner is controlled to run at a speed of 717r / min to achieve a constant air volume in the partition.

[0162] The control method of the duct air conditioner provided in the present application is to control the fan speed of the duct air conditioner to adjust according to the air volume demand ratio of the air valves in multiple partitions and the opening degree of the air valves in multiple partitions to maintain the relative constancy of the air volume, thereby realizing the partitioned constant air volume control of the duct air conditioner. In this way, a more efficient and precise control effect is achieved, which can effectively reduce system noise and improve user comfort.

[0163] An embodiment of the present application provides a computer-readable storage medium storing one or more programs, which can be executed by one or more partition controllers to implement the following. Figure 5The implementation process of the control method of the air duct machine provided in the corresponding embodiment will not be repeated here.

[0164] The above-mentioned computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM) and the like; it can also be various terminals including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0165] It should be understood that the "one embodiment" or "an embodiment" or "an embodiment of the present application" or "the aforementioned embodiment" or "some embodiments" or "some implementation methods" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" or "an embodiment of the present application" or "the aforementioned embodiment" or "some embodiments" or "some implementation methods" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

[0166] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0167] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0168] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0169] The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0170] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0171] The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0172] A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), magnetic disks or optical disks, etc., various media that can store program codes.

[0173] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0174] It is worth noting that the drawings in the embodiments of the present application are only for illustrating the schematic positions of various components on the terminal device and do not represent the actual positions in the terminal device. The actual positions of various components or areas may be changed or offset accordingly according to actual conditions (for example, the structure of the terminal device), and the proportions of different parts of the terminal device in the drawings do not represent the actual proportions.

[0175] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A control method for a ducted air conditioner, wherein the ducted air conditioner is connected to air valves of multiple zones through multiple zone interfaces, characterized in that: The method comprises: If the working state of the air valve of at least one of the partitions changes, the air volume demand ratios of the air valves of the multiple partitions are obtained; Determining the total air volume demand of the multiple partitions according to the air volume demand proportions of the air valves of the multiple partitions and the openings of the air valves of the multiple partitions; The fan speed of the duct fan is adjusted according to the total air volume demand.

2. The control method according to claim 1, characterized in that: The obtaining of the air volume demand ratios of the air valves of the multiple partitions includes: Acquire the associated parameters of the air valves of the multiple partitions; the associated parameters include the total number of air valves of the multiple partitions and the air valve diameters of the air valves of the multiple partitions; The air volume demand ratios of the air valves of the multiple partitions are determined according to the air valve diameters of the air valves of the multiple partitions and the total number of the air valves.

3. The control method according to claim 1, characterized in that: The step of adjusting the fan speed of the duct fan according to the total air volume demand includes: Get the maximum speed and minimum speed in static pressure mode; The fan speed of the duct fan is adjusted according to the total air volume requirement, the maximum speed and the minimum speed.

4. The control method according to claim 3, characterized in that: The step of adjusting the fan speed of the duct fan according to the total air volume requirement, the maximum speed and the minimum speed includes: Get the speed adjustment parameters; Obtaining a difference between the maximum rotation speed and the minimum rotation speed; The fan speed of the duct fan is adjusted according to the difference, the speed adjustment parameter, the total air volume requirement and the minimum speed.

5. The control method according to claim 3, characterized in that: The step of adjusting the fan speed of the duct fan according to the total air volume requirement, the maximum speed and the minimum speed includes: Get the speed adjustment parameters; Determine a gear position corresponding to the speed adjustment parameter from a plurality of pre-set gear positions; wherein there is a one-to-one relationship between the gear position and the range to which the value of the speed adjustment parameter belongs; Obtaining a difference between the maximum rotation speed and the minimum rotation speed; Determining the speed corresponding to the gear position according to the difference, the total air volume requirement and the minimum speed; The fan speed is adjusted to the speed corresponding to the gear position.

6. The control method according to claim 5, characterized in that: The multiple gears include multiple regular gears and silent gears; the fan speed in the silent gear is the minimum speed, and the speed in the regular gear is greater than the minimum speed.

7. The control method according to claim 3, characterized in that: The obtaining of the maximum speed and the minimum speed in the static pressure mode includes: Obtaining air duct parameters of the air duct from the air duct machine to the multiple zone interfaces; Setting the static pressure value according to the air duct parameters; The maximum speed and the minimum speed under the static pressure value are obtained.

8. A control device for a duct machine, characterized in that: include: A first processing module, configured to obtain the air volume demand ratios of the air valves of the plurality of partitions if the working state of the air valve of at least one partition changes; A first processing module, configured to determine the total air volume requirements of the plurality of partitions according to the air volume requirement ratios of the air valves of the plurality of partitions and the openings of the air valves of the plurality of partitions; The second processing module is used to adjust the fan speed of the duct fan according to the total air volume demand.

9. A control device for a duct machine, characterized in that: include: A memory for storing executable instructions; A partition controller is used to execute the executable instructions stored in the memory to implement the control method of the duct machine according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Executable instructions are stored, and when the executable instructions are executed, they are used to cause the partition controller to execute the control method of the air duct machine according to any one of claims 1 to 7.

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