Air supply control method and device, electronic equipment and air conditioning unit

Abstract

The invention provides an air supply control method and device, electronic equipment and an air conditioning unit. The air supply control method comprises the steps that the current air volume and the current static pressure are detected; acquiring the current air volume and a preset motor rotating speed for realizing operation at the lowest power consumption power under the current static pressure according to the relation between each static pressure and the motor rotating speed and the lowest power consumption power under the pre-stored different air volumes; adjusting the rotating speed of the motor according to the preset motor rotating speed for realizing the lowest power consumption operation under the current air volume and the current static pressure, and enabling the motor to operate according to the preset motor rotating speed. According to the air supply control method, the air conditioning unit operates according to the lowest energy consumption mode under the same air volume and the same static pressure, it is guaranteed that the air conditioning unit can operate according to the lowest energy consumption mode according to the actual air volume and the actual static pressure on each occasion or each application scene, the use requirements of a user on different occasions are met, and the user experience is improved. The technical problems that a traditional multi-motor air cabinet unit is large in energy consumption and cannot run in an energy-saving mode in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air supply control method, device, electronic equipment and an air conditioning unit. Background Art

[0002] Conventional air cabinet units include motors, fans, surface coolers, filters, insulation boxes and other parts. The water entering the surface cooler and the air to be treated undergo heat exchange to achieve air treatment. For air cabinet units with multiple fans and motors, the motor, as a power source, is the main component of the energy consumption of the air cabinet unit. Traditional multi-motor air cabinet units consume a lot of energy and cannot operate in an energy-saving manner.

[0003] In addition, in current projects, the selected static pressure often does not match the actual static pressure. After running for a period of time, the accumulation of dirt will cause the pressure loss of the whole machine to increase, thereby affecting the air volume of the whole machine, thereby affecting the air outlet effect of the unit and causing unstable air outlet.

[0004] In addition, air conditioners have different usage requirements in various occasions. For example, when used in a home, the noise requirement is relatively low when sleeping at night, otherwise the noise will be too loud and affect the customer's sleep. When used in large places with a large number of people, a larger air volume and cooling capacity are required, and the noise value of the unit does not need to be considered. However, the wind cabinet unit in the prior art cannot meet the usage requirements in different occasions at the same time.

[0005] Therefore, the prior art needs to be further developed. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide an air supply control method, device, electronic equipment and air conditioning unit to solve the technical problems in the related art that traditional multi-motor air cabinet units have high energy consumption and cannot operate in an energy-saving manner.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: Provides an air supply control method, comprising:

[0008] Detect current air volume and current static pressure;

[0009] According to the pre-stored relationship between each static pressure, motor speed and minimum power consumption under different air volumes, the preset motor speed for achieving the lowest power consumption operation under the current air volume and current static pressure is obtained;

[0010] According to the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure, the motor speed is adjusted, and the motor operates at the preset motor speed.

[0011] Furthermore, before detecting the current air volume and the current static pressure, the method further includes:

[0012] The air conditioning unit operates according to the set cooling capacity and rated air volume;

[0013] After the motor runs at the preset motor speed, it also includes:

[0014] Check whether the current cooling capacity meets the set cooling capacity;

[0015] If the current cooling capacity does not meet the set cooling capacity, the refrigerant flow in the air-conditioning unit is increased until the current cooling capacity meets the set cooling capacity.

[0016] Further, detecting whether the current cooling capacity meets the set cooling capacity includes:

[0017] Detect the real-time air supply temperature T and compare the real-time air supply temperature T with the preset air supply temperature T 设 Make comparisons;

[0018] If the real-time air supply temperature T≦|T 设 -T difference |, the current cooling capacity meets the set cooling capacity;

[0019] If the real-time air supply temperature T>|T 设 -T difference |, the current cooling capacity does not meet the set cooling capacity.

[0020] Furthermore, it also includes:

[0021] If the user sets the target noise value, the current air volume and current static pressure are detected as follows:

[0022] Reduce the speed of the motor until the current noise value drops to the target noise value, and then detect the current air volume and current static pressure.

[0023] Further, until the current noise value is reduced to the target noise value, including:

[0024] Obtain the current noise value in the room through the noise sensor;

[0025] When the user sets the target noise value, the current noise value in the room is continuously detected and compared with the target noise value until the current noise value is reduced to the target noise value.

[0026] Furthermore, the motor includes at least two motors, and the pre-stored relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is obtained by the following method:

[0027] The preset air volume and the preset static pressure are set, and the air conditioning unit operates under the preset air volume and the preset static pressure;

[0028] respectively changing the rotation speeds of at least two motors until the current air volume reaches the preset air volume;

[0029] At each speed value of at least two motors, record the total motor power corresponding to the preset air volume;

[0030] Select the lowest total motor power as the minimum power consumption under the preset air volume and preset static pressure, and record the motor speed corresponding to the lowest power consumption.

[0031] Further, the rotation speeds of at least two motors are changed respectively until the current air volume reaches a preset air volume, including:

[0032] When at least two motors are turned on, at least two motors are operated at set power, and the speeds of at least two motors are increased synchronously until the current air volume reaches the preset air volume;

[0033] One of the at least two motors reduces its rotation speed according to a first preset amplitude, and the other motor increases its rotation speed according to a second preset amplitude, until the current air volume reaches the preset air volume again;

[0034] When the rotation speed of one of the at least two motors decreases to a first preset rotation speed, or when the rotation speed of another of the at least two motors increases to a second preset rotation speed, the rotation speeds of the at least two motors are stopped from being changed.

[0035] Furthermore, the pre-stored relationships between the static pressure, motor speed, and minimum power consumption under different air volumes are obtained in the following manner:

[0036] Keep the preset air volume unchanged and increase the static pressure value according to the third preset amplitude;

[0037] The air conditioning unit operates according to the first preset static pressure value, obtains the minimum power consumption when operating according to the first preset static pressure value by changing the speed of at least two motors, and records the motor speed corresponding to the minimum power consumption;

[0038] The air conditioning unit operates according to the second preset static pressure value, obtains the minimum power consumption when operating according to the second preset static pressure value by changing the speed of at least two motors, and records the motor speed corresponding to the minimum power consumption;

[0039] The minimum power consumption and the corresponding motor speed at each static pressure value are obtained in a similar manner. Based on the minimum power consumption and the corresponding motor speed at each static pressure value, the relationship between each static pressure and motor speed and minimum power consumption at the same air volume is formed.

[0040] Furthermore, the pre-stored relationships between the static pressure, motor speed, and minimum power consumption under different air volumes are obtained in the following manner:

[0041] changing the air volume value according to a fourth preset amplitude;

[0042] The air conditioning unit operates according to the first preset air volume, and obtains the minimum power consumption when operating according to the first preset air volume under different preset static pressures by changing the speeds of at least two motors under different preset static pressures, and records the motor speed corresponding to the minimum power consumption;

[0043] The air conditioning unit operates according to the second preset air volume, and obtains the minimum power consumption when operating according to the second preset air volume under different preset static pressures by changing the speeds of at least two motors under different preset static pressures, and records the motor speed corresponding to the minimum power consumption;

[0044] In a similar manner, the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume are obtained. Based on the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume, the relationship between each static pressure and motor speed and minimum power consumption under different air volumes is formed.

[0045] Furthermore, the specific method of detecting the current air volume is:

[0046] The current wind speed of the air supply is obtained through the wind speed sensor, and the current air volume is calculated based on the current wind speed.

[0047] Furthermore, the method for setting the preset air volume includes:

[0048] If the preset air volume is greater than the maximum set air volume Fmax, a prompt will appear indicating that the air volume exceeds the limit.

[0049] An air supply control device, comprising:

[0050] A detection module is used to detect the current air volume and the current static pressure;

[0051] A judgment module is used to obtain a preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure according to the pre-stored relationship between each static pressure, motor speed, and the lowest power consumption under different air volumes;

[0052] The control module is used to adjust the motor speed according to the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure, and the motor operates at the preset motor speed.

[0053] An electronic device, comprising:

[0054] a memory, and one or more processors communicatively coupled to the memory;

[0055] The memory stores instructions that can be executed by one or more processors, and the instructions are executed by one or more processors so that the one or more processors implement the air supply control method as described above.

[0056] An air conditioning unit, comprising: it adopts the air supply control method according to the above, or comprises the electronic equipment as described above.

[0057] Beneficial effects:

[0058] 1. In the air supply control method of the present embodiment, the relationship between each static pressure, motor speed and minimum power consumption under different air volumes is first pre-stored, so that the relevant data can be called at any time in the subsequent air-conditioning operation. During the operation of the air-conditioning unit, the motor speed that achieves the lowest energy consumption operation is called according to the current air volume and the current static pressure, so that the air-conditioning unit can operate in the lowest energy consumption mode under the same air volume and the same static pressure, thereby achieving low-carbon and energy-saving operation. In addition, the air supply control method can ensure that the air-conditioning unit can operate in the lowest energy consumption mode according to the actual air volume and the actual static pressure in every occasion or every application scenario, thereby meeting the user's usage requirements in different occasions and solving the technical problem in the related technology that the traditional multi-motor air cabinet unit has high energy consumption and cannot operate in an energy-saving manner.

[0059] 2. By adjusting the motor speeds at different speeds, the lowest energy consumption mode of the motor can be determined. The motor can then be operated in this way with the same air volume to achieve low-carbon and energy-saving operation.

[0060] 3. The control method in this embodiment can control the fan speed according to noise feedback, thereby reducing the noise value of the whole machine to meet customer needs. When the customer sets the required cooling capacity, the whole machine will operate at the maximum air volume first, and the noise value will be displayed in real time on the display screen of the unit. If the customer feels that the noise is too loud, the noise value can be lowered in real time. At this time, the fan speed of the whole machine is reduced, and the water flow rate is increased. Increasing the water flow rate and reducing the wind speed are mainly to maintain the refrigeration capacity required by the customer unchanged until the customer's noise requirements are met. In addition, when the noise meets the customer's requirements, the whole machine air volume operates according to the lowest energy consumption. Therefore, this unit can be applied to various occasions, meet different noise capacity requirements, and achieve low-energy operation.

[0061] 4. The air-conditioning unit in the embodiment has various modes to meet the requirements of various occasions. For example, when used in a low-noise environment, the noise of the unit can be effectively reduced. When used in a high air volume and high cooling environment, while meeting the cooling capacity of the air conditioner, the unit is ensured to operate at the lowest energy consumption. The unit can ensure that in each occasion and operating mode, the air volume can be adaptively adjusted to ensure stable air output. It can operate at the lowest energy consumption to meet customer needs, is suitable for various occasions, and meets various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a flow chart of the air supply control method adopted in the embodiment of the present invention;

[0063] Figure 2 is a schematic diagram of the structure of an air conditioning unit used in an embodiment of the present invention;

[0064] Figure 3 is a schematic structural diagram of an air supply control device used in an embodiment of the present invention;

[0065] Figure 4 is a flow chart of a first specific embodiment of the air supply control method adopted in an embodiment of the present invention;

[0066] Figure 5 It is a flow chart of a second specific embodiment of the air supply control method adopted in an embodiment of the present invention.

[0067] The above drawings include the following reference numerals:

[0068] 1. Fan; 2. Motor; 3. Heat exchanger; 4. Filter;

[0069] 10. Detection module; 20. Judgment module; 30. Control module. DETAILED DESCRIPTION

[0070] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0071] Example 1

[0072] According to an embodiment of the present invention, a method for controlling air supply is provided. Figures 1 to 5 ,include:

[0073] Detect current air volume and current static pressure;

[0074] According to the pre-stored relationship between each static pressure, motor speed and minimum power consumption under different air volumes, the preset motor speed for achieving the lowest power consumption operation under the current air volume and current static pressure is obtained;

[0075] According to the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure, the motor speed is adjusted, and the motor operates at the preset motor speed.

[0076] It should be noted that see Figure 2 The motor refers to the motor 2 used to control the rotation of the fan 1 to realize the air supply of the fan 1.

[0077] It should be noted that, in the present embodiment, the relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is a minimum energy consumption table with speed, air volume, and static pressure as horizontal or column axes, or it can also be a curve graph with speed, air volume, and static pressure as coordinate axes. The air-conditioning unit in the present embodiment is provided with detection modules such as pressure loss sensors. The minimum energy consumption table or curve graph can be pre-stored in the control module through experiments before the air conditioner leaves the factory, and can also be customized by the user in subsequent use.

[0078] In the air supply control method of the present embodiment, the relationship between each static pressure, motor speed and minimum power consumption under different air volumes is first pre-stored, so that the relevant data can be called at any time in the subsequent air-conditioning operation. During the operation of the air-conditioning unit, the motor speed for achieving the lowest energy consumption is called according to the current air volume and the current static pressure, so that the air-conditioning unit can operate in the lowest energy consumption mode under the same air volume and the same static pressure, thereby achieving low-carbon and energy-saving operation. In addition, the air supply control method can ensure that the air-conditioning unit can operate in the lowest energy consumption mode according to the actual air volume and the actual static pressure in every occasion or every application scenario, thereby meeting the user's usage requirements in different occasions and solving the technical problem in the related technology that the traditional multi-motor air cabinet unit has high energy consumption and cannot operate in an energy-saving manner.

[0079] In the air supply control method of this embodiment, before detecting the current air volume and the current static pressure, the method further includes:

[0080] The air conditioning unit operates according to the set cooling capacity and rated air volume;

[0081] After the motor runs at the preset motor speed, it also includes:

[0082] Check whether the current cooling capacity meets the set cooling capacity;

[0083] If the current cooling capacity does not meet the set cooling capacity, the refrigerant flow in the air-conditioning unit is increased until the current cooling capacity meets the set cooling capacity.

[0084] Specifically, when the motor operates in the lowest energy consumption mode, in order to ensure that the current cooling capacity of the air-conditioning unit can meet the cooling capacity set by the customer, it is timely detected whether the current cooling capacity meets the set cooling capacity. When the customer's cooling temperature requirements are met, the refrigerant flow in the air-conditioning unit is increased to improve the cooling capacity of the air-conditioning unit until the current cooling capacity meets the set cooling capacity. Since the noise of the whole unit mainly comes from the air supply motor, the noise control only needs to control the motor speed. In this way, not only can the lowest energy consumption operation of the air-conditioning unit be achieved, but also the noise value of the air-conditioning unit can be effectively controlled.

[0085] It is understandable that when the air-conditioning unit is used in an environment with high air volume and high cooling capacity, the above-mentioned control method can be used to ensure that the unit operates at the lowest energy consumption while meeting the air-conditioning cooling capacity requirements. The unit can ensure that in each occasion and operating mode, the air volume can be adaptively adjusted to ensure stable air output. It can operate at the lowest energy consumption to meet customer needs and is suitable for various occasions and scenarios.

[0086] In the air supply control method of this embodiment, detecting whether the current cooling capacity meets the set cooling capacity includes:

[0087] Detect the real-time air supply temperature T and compare the real-time air supply temperature T with the preset air supply temperature T 设 Make comparisons;

[0088] If the real-time air supply temperature T≦|T 设 -T 差 ∣, the current cooling capacity meets the set cooling capacity;

[0089] If the real-time air supply temperature T>|T 设 -T 差 ∣, the current cooling capacity does not meet the set cooling capacity.

[0090] Specifically, T 差 is the temperature deviation value.

[0091] Through the above settings, when the motor runs in the lowest energy consumption mode, the supply air temperature T is detected in real time. If the supply air temperature T≦|T 设 -T 差 ∣, it means that the customer's air supply temperature requirements are met. If the customer's requirements are not met, the water valve controller is adjusted to increase the refrigerant flow in the air conditioning unit until the air outlet temperature is met.

[0092] The air supply control method of this embodiment further includes:

[0093] If the user sets the target noise value, the current air volume and current static pressure are detected as follows:

[0094] Reduce the speed of the motor until the current noise value drops to the target noise value, and then detect the current air volume and current static pressure.

[0095] The above control method can effectively regulate the noise of the unit. When the customer feels that the noise is too high and needs to be lowered, the target noise value D can be directly set. 设Since the noise of the whole unit mainly comes from the air supply motor, noise control only needs to control the motor speed. All motors reduce the speed according to △R, for example, △R is 5r / min, until the current noise value is reduced to the target noise value. At this time, the current noise value has met the user's expected effect. The current air volume and current static pressure are tested to ensure that it can operate in the lowest energy consumption mode in a low-noise scenario.

[0096] In the air supply control method of this embodiment, until the current noise value is reduced to the target noise value, it includes:

[0097] Obtain the current noise value in the room through the noise sensor;

[0098] When the user sets the target noise value, the current noise value in the room is continuously detected and compared with the target noise value until the current noise value is reduced to the target noise value.

[0099] Specifically, the current noise value in the room is obtained through the noise sensor, and the noise value can be displayed in real time on the screen of the air conditioner indoor unit, or the real-time noise value can be pushed to the user's mobile phone or other terminal devices.

[0100] The current noise value in the room is continuously detected and compared with the target noise value. When the current noise value is reduced to the target noise value, the noise adjustment is stopped and the current air volume and current air pressure are detected, so that the air-conditioning unit can operate in the lowest energy consumption mode while meeting the user's low noise requirements. In this way, it can also operate in the lowest energy consumption mode in a low noise scenario.

[0101] It can be understood that the control method in this embodiment can control the fan speed according to noise feedback, thereby reducing the noise value of the whole machine to meet customer needs. When the customer sets the required cooling capacity, the whole machine will preferentially operate at the maximum air volume, and the noise value will be displayed in real time on the display screen of the unit. If the customer feels that the noise is too loud, the noise value can be lowered in real time. At this time, the fan speed of the whole machine is reduced, and the water flow rate is increased. Increasing the water flow rate and reducing the wind speed are mainly to maintain the refrigeration capacity required by the customer unchanged until the customer's noise requirements are met. In addition, when the noise meets the customer's requirements, the whole machine air volume operates according to the lowest energy consumption. Therefore, this unit can be suitable for various occasions, meet different noise capacity requirements, and achieve low-energy operation.

[0102] In the air supply control method of this embodiment, the motor includes at least two motors, and the pre-stored relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is obtained by the following method:

[0103] The preset air volume and the preset static pressure are set, and the air conditioning unit operates under the preset air volume and the preset static pressure;

[0104] respectively changing the rotation speeds of at least two motors until the current air volume reaches the preset air volume;

[0105] At each speed value of at least two motors, record the total motor power corresponding to the preset air volume;

[0106] Select the lowest total motor power as the minimum power consumption under the preset air volume and preset static pressure, and record the motor speed corresponding to the lowest power consumption.

[0107] In some embodiments, see Figure 2 The unit is composed of a filter 4, a heat exchanger 3, a fan 1, a motor 2, and a sensor device. The single motor 2 controls the rotation of the fan blades of the fan 1 through a coupling. The motor is a DC motor. The motor current is adjusted by the drive board to control the fan speed. The fan includes two layers of fans 1, and the motors 2 on the upper and lower sides have the same number of fans 1.

[0108] After the unit sets the preset air volume F and the preset static pressure, the preset air volume F and the preset static pressure are kept unchanged, and the speeds of at least two motors are changed multiple times until F is detected. 出 ≥F-△F, that is, the current air volume F 出 When the preset air volume F is met, the total motor power and the corresponding motor speed value are recorded respectively each time. After the test is completed, the judgment module selects the lowest total motor power among multiple sets of data as the lowest power consumption under the preset air volume F and the preset static pressure, indicating that the unit motor is most energy-efficient when running at the speed in this state under the preset air volume F and the preset static pressure. The control module then records the motor speed corresponding to the lowest power consumption.

[0109] In the air supply control method of this embodiment, the rotation speeds of at least two motors are changed respectively until the current air volume reaches the preset air volume, including:

[0110] When at least two motors are turned on, at least two motors are operated at set power, and the speeds of at least two motors are increased synchronously until the current air volume reaches the preset air volume;

[0111] One of the at least two motors reduces its rotation speed according to a first preset amplitude, and the other motor increases its rotation speed according to a second preset amplitude, until the current air volume reaches the preset air volume again;

[0112] When the rotation speed of one of the at least two motors decreases to a first preset rotation speed, or when the rotation speed of another of the at least two motors increases to a second preset rotation speed, the rotation speeds of the at least two motors are stopped from being changed.

[0113] In the air supply control method of the present embodiment, the control method also includes: when at least two motors are turned on, at least two motors operate at a set power, and the speeds of at least two motors are increased synchronously until the current air volume reaches a preset air volume. At this time, the total power of the motor and the static pressure value under this air volume are detected, and the speeds of at least two motors at this time are recorded.

[0114] Specifically, when the unit sets the preset air volume F, at least two motors are turned on, and the speed of at least two motors is kept consistent, and the PID adjustment is started from zero, and the △R increases by 5 / min until F is detected. 出 ≥F-△F, where △F is the air volume pre-difference, indicating that F 出 When the preset air volume value is met, the motor speed value is detected and recorded, and the total motor power W1 and the static pressure value under this air volume are simultaneously measured and recorded. At this time, the power of the two motors should be consistent.

[0115] Subsequently, the speed of at least one of the two motors is reduced by a first preset amplitude ΔE, and the air volume F is detected at this time. 出 , and perform F 出 ≥F-△F comparison, if not, it means that the air volume is not enough at this time, then the PID adjustment is performed on the speed of at least another motor among the two motors to increase the speed of the other motor until F is met. 出 ≥F-△F, at this time record the speed of at least two motors and the total motor power W2.

[0116] Next, the speed of at least one of the two motors continues to decrease according to the first preset amplitude ΔE, and the speed of the other motor is increased again until F is satisfied. 出 ≥F-△F, at this time, record the speed of at least two motors and the total motor power W3.

[0117] Until the continuously decreasing motor speed satisfies R1≤0 or the continuously increasing motor speed satisfies R2≥Rmax, the speed of at least two motors is stopped from being changed.

[0118] The motor power data W1, W2, W3, etc. recorded in the above process are compared to determine the lowest motor power, indicating that under the preset air volume F and preset static pressure, it is most energy-efficient for at least two motors to run at the speed in this state.

[0119] In the air supply control method of this embodiment, the pre-stored relationships between the static pressure, motor speed, and minimum power consumption at different air volumes are obtained in the following manner:

[0120] Keep the preset air volume unchanged and increase the static pressure value according to the third preset amplitude;

[0121] The air conditioning unit operates according to the first preset static pressure value, obtains the minimum power consumption when operating according to the first preset static pressure value by changing the speed of at least two motors, and records the motor speed corresponding to the minimum power consumption;

[0122] The air conditioning unit operates according to the second preset static pressure value, obtains the minimum power consumption when operating according to the second preset static pressure value by changing the speed of at least two motors, and records the motor speed corresponding to the minimum power consumption;

[0123] The minimum power consumption and the corresponding motor speed at each static pressure value are obtained in a similar manner. Based on the minimum power consumption and the corresponding motor speed at each static pressure value, the relationship between each static pressure and motor speed and minimum power consumption at the same air volume is formed.

[0124] Specifically, while keeping the preset air volume unchanged, the static pressure value is increased according to the third preset amplitude. At different preset static pressure values, the above method is repeated, and the rotation speeds of at least two motors are changed multiple times to obtain the minimum power consumption and the corresponding motor speed at each static pressure value. Then, the static pressure value is increased according to the third preset amplitude according to this repeated step, and the minimum power consumption and the corresponding motor speed at each static pressure value with the same air volume are obtained and recorded, as shown in Table 1 below. Table 1 below is a minimum energy consumption table of various static pressures, motor speeds, and minimum power consumption when the preset air volume is F.

[0125] Air volume setting Static pressure value Motor 1 speed Motor 2 speed Minimum power consumption F 0 D00 Z00 W1 F 5 D01 Z01 W2 F 10 D02 Z02 W3 F 15 D03 Z03 W4 F 20 D04 Z04 W5 F 25 D05 Z05 W6 F 。。。 。。。 。。。 。。。 F X D0X Z0X WX

[0126] Table 1

[0127] It should be noted that, for air-conditioning units, after setting the preset air volume, when all motor speeds reach the maximum, under other conditions unchanged, the unit's air supply static pressure is the maximum at this time. This maximum air supply static pressure value can be detected before leaving the factory, so a detailed corresponding table can be made, as shown in Table 1 or Table 2 below. When the unit is used in many different places, the unit needs to overcome different types of air outlet static pressures. After the unit detects the air supply static pressure and air volume at this time, it can directly operate according to the corresponding minimum energy consumption mode in the table.

[0128] In the air supply control method of this embodiment, the pre-stored relationships between the static pressure, motor speed, and minimum power consumption at different air volumes are obtained in the following manner:

[0129] changing the air volume value according to a fourth preset amplitude;

[0130] The air conditioning unit operates according to the first preset air volume, and obtains the minimum power consumption when operating according to the first preset air volume under different preset static pressures by changing the speeds of at least two motors under different preset static pressures, and records the motor speed corresponding to the minimum power consumption;

[0131] The air conditioning unit operates according to the second preset air volume, and obtains the minimum power consumption when operating according to the second preset air volume under different preset static pressures by changing the speeds of at least two motors under different preset static pressures, and records the motor speed corresponding to the minimum power consumption;

[0132] In a similar manner, the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume are obtained. Based on the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume, the relationship between each static pressure and motor speed and minimum power consumption under different air volumes is formed.

[0133] Specifically, the air volume value is changed according to the fourth preset amplitude, and the above method is repeated at different preset air volume values ​​to modify the preset static pressure and the speed of at least two motors multiple times to obtain the minimum power consumption and the corresponding motor speed at each static pressure value under different preset air volume values, and then the air volume value is increased according to the fourth preset amplitude according to this repeated step, thereby forming the relationship between each static pressure and motor speed, and the minimum power consumption at different air volumes, as shown in Table 2 below, which is a minimum energy consumption table of each static pressure, motor speed, and minimum power consumption when the preset air volume is G.

[0134] Air volume setting Static pressure value Motor 1 speed Motor 2 speed Minimum power consumption G 0 D10 Z10 W11 G 5 D11 Z11 W12 G 10 D12 Z12 W13 G 15 D13 Z13 W14 G 20 D14 Z14 W15 G 25 D15 Z15 W16 G 。。。 。。。 。。。 。。。 G X D1X Z1X W1X

[0135] Table 2

[0136] In the air supply control method of this embodiment, the specific method of detecting the current air volume is:

[0137] The current wind speed of the air supply is obtained through the wind speed sensor, and the current air volume is calculated based on the current wind speed.

[0138] Specifically, a wind speed sensor is provided at the front end of the air outlet of the air conditioning unit to detect the wind speed and convert the wind volume to calculate the current wind volume value.

[0139] In the air supply control method of this embodiment, the method for setting the preset air volume includes:

[0140] If the preset air volume is greater than the maximum set air volume Fmax, a prompt will appear indicating that the air volume exceeds the limit.

[0141] Specifically, when the unit is started and the preset air volume F value is set on the display panel, if the set air volume F is greater than Fmax, it will prompt that the air volume is out of limit, and the maximum preset air volume is Fmax.

[0142] In some embodiments, a pressure difference sensor is provided at the air supply point to detect the pressure loss of the entire machine, thereby obtaining the current static pressure of the air conditioning unit.

[0143] Example 2

[0144] In the air supply control device of this embodiment, see Figure 3 , the device comprises:

[0145] The detection module 10 is used to detect the current air volume and the current static pressure;

[0146] The judgment module 20 is used to obtain the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure according to the pre-stored relationship between each static pressure, motor speed and the lowest power consumption under different air volumes;

[0147] The control module 30 is used to adjust the motor speed according to the preset motor speed for achieving the lowest power consumption under the current air volume and the current static pressure, and the motor runs at the preset motor speed.

[0148] In the air supply control device of the present embodiment, first, the control module 30 pre-stores the relationship between each static pressure and the motor speed and the minimum power consumption under different air volumes, and the relevant data can be called at any time in the subsequent air-conditioning operation. During the operation of the air-conditioning unit, the detection module 10 obtains the current air volume and the current static pressure, and the control module 30 calls the motor speed that achieves the lowest energy consumption operation, so that the air-conditioning unit can operate in the lowest energy consumption mode under the same air volume and the same static pressure, thereby achieving low-carbon and energy-saving operation. In addition, the air supply control method can ensure that the air-conditioning unit can operate in the lowest energy consumption according to the actual air volume and the actual static pressure in every occasion or every application scenario, thereby meeting the user's usage requirements in different occasions and solving the technical problem in the related technology that the traditional multi-motor air cabinet unit has high energy consumption and cannot operate in an energy-saving manner.

[0149] Example 3

[0150] The electronic device of this embodiment includes:

[0151] a memory, and one or more processors communicatively coupled to the memory;

[0152] The memory stores instructions that can be executed by one or more processors, and the instructions are executed by one or more processors so that the one or more processors implement the air supply control method as described above.

[0153] Example 4

[0154] The air conditioning unit of this embodiment includes: it adopts the above-mentioned air supply control method, or includes the above-mentioned electronic equipment.

[0155] In the air-conditioning unit of the present embodiment, a detection module, a judgment module and a control module are provided therein. A wind speed sensor is provided at the front end of the air outlet of the unit for detecting the wind speed. A pressure difference sensor is provided at the air supply point for detecting the pressure loss of the whole machine. The whole unit is equipped with a noise detector for detecting indoor noise. This noise sensor is connected to the control module, and the fan speed can be controlled according to the noise feedback, thereby reducing the noise value of the whole machine to meet customer needs. When the customer sets the required cooling capacity, the whole machine will operate at the maximum air volume first, and the noise value will be displayed in real time on the display screen of the unit. If the customer feels that the noise is too loud, the noise value can be lowered in real time. At this time, the fan speed of the whole machine will be reduced, and the water flow rate will be increased until the customer's noise requirements are met. In addition, when the noise meets the customer's requirements, the whole machine air volume will operate according to the lowest energy consumption. Therefore, this unit can be suitable for various occasions, meet different noise capacity requirements, and achieve low-energy operation.

[0156] The present invention creates an adaptive multifunctional air supply air-conditioning unit, which has various modes and can meet the requirements of use in various occasions. For example, when used indoors in the home and sleeping at night, the noise requirement is relatively low. In this scenario, the air-conditioning unit can effectively reduce the noise value and meet the low-noise operation without affecting the customer's sleep. When used in large places with a large number of people, a larger air volume and cooling capacity are required. The air-conditioning unit in this embodiment can not only meet the huge air volume and cooling capacity requirements, but also achieve low-energy consumption operation. The unit can ensure that in each occasion and operating mode, it can operate according to the lowest energy consumption to meet customer needs.

[0157] Example 5

[0158] Based on any one of the implementations in Examples 1-4, a feasible specific implementation is further proposed.

[0159] like Figure 2 As shown, the unit consists of a filter 4, a heat exchanger 3, a fan 1, a motor 2, and a sensor device. The single motor 2 controls the rotation of the fan blades of the fan 1 through a coupling. The motor 2 is a DC motor. The motor current is adjusted by the drive board to control the fan speed. Since the number of upper and lower fans and motors is the same, the maximum speed of the upper and lower fans is set to Rmax. At this time, the maximum wind force of the unit is Fmax. It is calculated that the maximum air volume value of the upper and lower fans is Fmax / 2. A wind speed sensor is provided at the air supply of the unit, and the actual air output value F is obtained by conversion through the formula. 出 .

[0160] When the customer sets the air volume F, the fan is controlled in the following way:

[0161] Set the lower motor speed to R1, the upper motor speed to R2, start the unit, and set the F value on the unit display panel. If the set air volume F is greater than Fmax, it will prompt that the air volume is out of limit, and the maximum is Fmax.

[0162] like Figure 5 As shown in the figure, when the unit sets the preset air volume F, the speed of motor R1 and motor R2 are kept consistent, and the PID adjustment is started from zero, and the △R increases at 5 / min until F is detected. 出 ≥F-△F, where △F is the air volume pre-difference, indicating that F 出 The set air volume value is met. At this time, the detection module detects the motor speed value and records it. It also simultaneously measures the motor total power W1 and the static pressure value under this air volume and records them. At this time, the power of the two motors should be consistent. Then the motor speed decreases according to △E. At this time, the detection module detects the air volume F at this time. 出 , and perform F 出 ≥F-△F comparison, if not, it means that the air volume is not enough at this time, then the PID adjustment is performed on the upper motor speed to increase the upper motor speed until F is met. 出 ≥F-△F, at this time, record the upper and lower motor speeds and the total power of the dual motors W2, then reduce the lower motor speed by △E, and then increase the upper motor speed by the above method until F is met. 出 ≥F-△F, at this time, the upper and lower motor speeds and the total motor power W3 are recorded until the lower motor speed R1≤0 or R2≥Rmax. It is assumed that a total of 7 groups of motor power data W1~W7 are recorded. Since the motor efficiency is different at different speeds, the power of the 7 groups of data is inconsistent. Subsequently, the lowest power is obtained by the judgment device. It is assumed that the judgment device obtains that the total motor power W3 is the smallest, indicating that at this time, the upper and lower motors of the unit are most energy-efficient when running at the speed under this state. Due to space limitations, this description only writes about the power W3 control method. At this time, the unit records the air volume and static pressure, and the corresponding motor speed values ​​are obtained.

[0163] Subsequently, while keeping the air volume unchanged, the static pressure value is increased by 5pa. At this time, the air volume and static pressure, the motor speed values ​​under the lowest energy consumption are repeatedly calculated according to the above-mentioned method. Subsequently, the static pressure is repeatedly increased, and the motor speed values ​​under the same air volume and different static pressures with the lowest energy consumption are obtained and recorded. For the unit, after setting the air volume, when the dual motor speed reaches the maximum, the air supply static pressure of the unit is the maximum under other conditions. This maximum air supply static pressure value can be detected before leaving the factory, so a detailed corresponding table can be made, as shown in Tables 1 and 2 above. Table 1 is a table of the lowest energy consumption of various static pressures, motor speeds, and the lowest power consumption when the preset air volume is F. Table 2 is a table of the lowest energy consumption of various static pressures, motor speeds, and the lowest power consumption when the preset air volume is G. When the unit is used in many different places, the unit needs to overcome different types of air outlet static pressures. After the unit detects the air supply static pressure and air volume at this time, it can directly operate according to the corresponding lowest energy consumption method in the table.

[0164] To start the unit, press Figure 5 After the customer sets the cooling capacity, the unit motor starts running and the unit runs at the default air volume value. At this time, the unit's noise sensor automatically detects the real-time noise value D, and the noise deviation value is D 差 , and the noise value is displayed on the screen. When the customer feels that the noise is too high and needs to lower the noise, the noise value D can be set directly 设 Then the dual fans reduce their speed in a △R manner of 5r / min until D≦∣D 设 -D 差 ∣, and detect the static pressure value and wind speed at this time, and then convert the wind speed into air volume (the cross-sectional area of ​​the unit's air outlet is constant, and the outlet wind speed multiplied by the outlet cross-sectional area equals the outlet air volume). The whole machine automatically adjusts the speed of the dual fans according to the minimum energy consumption table. Since the noise value of the whole machine is mainly from the wind motor, the sound of water inlet and outlet of the pipeline is relatively low, and the air supply temperature T is detected in real time at this time, if the air supply temperature T≦∣T 设 -T 差 ∣, it means that the customer's air supply temperature requirements are met. If the customer's requirements are not met, the water valve controller is adjusted up until the air outlet temperature is met. Since the noise of the unit is mainly from the wind motor, noise control only needs to control the speed of the wind motor.

[0165] In this embodiment, an adaptive multifunctional air supply air-conditioning unit is created. By adjusting the different speeds of the motor, the lowest energy consumption mode of the motor operation is determined. The subsequent operation with the same air volume can achieve low-carbon energy-saving operation, which has a beneficial effect. The unit has various modes to meet the use requirements of various occasions. For example, when used in a home, at night when sleeping, the noise requirement is relatively small, otherwise it will affect the customer's sleep. When used in large places with a large number of people, a larger air volume and cooling capacity are required, and the noise value of the unit does not need to be considered. In addition, this unit can ensure that in each occasion and operating mode, the air volume is adaptively adjusted to ensure stable air output. It can operate at the lowest energy consumption to meet customer needs. It is suitable for various occasions and meets various scenarios.

[0166] The air-conditioning unit in this embodiment is provided with a detection module, a judgment module and a control module. A wind speed sensor is provided at the front end of the air outlet of the unit to detect the wind speed. A pressure difference sensor is provided at the air supply point to detect the pressure loss of the whole machine. The whole unit is equipped with a noise detector to detect indoor noise. This noise sensor is connected to the control device, and the fan speed can be controlled according to the noise feedback, so as to reduce the noise value of the whole machine to meet customer needs. When the customer sets the required cooling capacity, the whole machine will operate at the maximum air volume first, and the noise value will be displayed in real time on the display screen of the unit. If the customer feels that the noise is too loud, the noise value can be lowered in real time. At this time, the fan speed of the whole machine will be reduced and the water flow will be increased until the customer's noise requirements are met. When the noise meets the customer's requirements, the whole machine air volume will operate according to the lowest energy consumption. Therefore, this unit can be suitable for various occasions, meet different noise capacity requirements, and achieve low-energy operation.

[0167] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0168] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0169] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0170] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0171] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling air supply, characterized in that: include: Detect current air volume and current static pressure; According to the pre-stored relationship between each static pressure, motor speed and minimum power consumption under different air volumes, the preset motor speed for achieving the lowest power consumption operation under the current air volume and current static pressure is obtained; The motor speed is adjusted according to the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure, and the motor operates at the preset motor speed.

2. The air supply control method according to claim 1, characterized in that: Before detecting the current air volume and the current static pressure, the method further includes: The air conditioning unit operates according to the set cooling capacity and rated air volume; After the motor runs at the preset motor speed, the method further comprises: Check whether the current cooling capacity meets the set cooling capacity; If the current cooling capacity does not meet the set cooling capacity, the refrigerant flow in the air-conditioning unit is increased until the current cooling capacity meets the set cooling capacity.

3. The air supply control method according to claim 2, characterized in that: The detecting whether the current cooling capacity meets the set cooling capacity includes: Detect the real-time air supply temperature T and compare the real-time air supply temperature T with the preset air supply temperature T 设 Make comparisons; If the real-time air supply temperature T≦|T 设 -T difference |, the current cooling capacity meets the set cooling capacity; If the real-time air supply temperature T>|T 设 -T difference |, the current cooling capacity does not meet the set cooling capacity.

4. The air supply control method according to claim 2, characterized in that: Also includes: If the user sets the target noise value, the current air volume and current static pressure are detected as follows: The rotation speed of the motor is reduced until the current noise value is reduced to the target noise value, and the current air volume and the current static pressure are detected at this time.

5. The air supply control method according to claim 4, characterized in that: The step of reducing the current noise value to the target noise value includes: Obtain the current noise value in the room through the noise sensor; When the user sets the target noise value, the current noise value in the room is continuously detected, and the current noise value is compared with the target noise value until the current noise value is reduced to the target noise value.

6. The air supply control method according to claim 1, characterized in that: The motor includes at least two motors, and the pre-stored relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is obtained in the following manner: The preset air volume and the preset static pressure are set, and the air conditioning unit operates under the preset air volume and the preset static pressure; respectively changing the rotation speeds of at least two of the motors until the current air volume reaches the preset air volume; At each speed value of at least two of the motors, record the total motor power corresponding to the preset air volume; The lowest total motor power is selected as the minimum power consumption under the preset air volume and the preset static pressure, and the motor speed corresponding to the lowest power consumption is recorded.

7. The air supply control method according to claim 6, characterized in that: The step of respectively changing the rotation speeds of at least two of the motors until the current air volume reaches a preset air volume comprises: When at least two of the motors are turned on, the at least two motors are operated at a set power, and the rotation speeds of the at least two motors are increased synchronously until the current air volume reaches a preset air volume; One of the at least two motors reduces its rotation speed according to a first preset amplitude, and the other motor increases its rotation speed according to a second preset amplitude, until the current air volume reaches the preset air volume again; When the rotation speed of one of the at least two motors decreases to a first preset rotation speed, or when the rotation speed of another of the at least two motors increases to a second preset rotation speed, the rotation speeds of the at least two motors are stopped from being changed.

8. The air supply control method according to claim 7, characterized in that: The pre-stored relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is obtained in the following manner: Keeping the preset air volume unchanged, increasing the static pressure value according to a third preset amplitude; The air conditioning unit operates according to a first preset static pressure value, obtains the minimum power consumption when operating according to the first preset static pressure value by changing the speed of at least two of the motors, and records the motor speed corresponding to the minimum power consumption; The air conditioning unit operates according to the second preset static pressure value, obtains the minimum power consumption when operating according to the second preset static pressure value by changing the speed of at least two of the motors, and records the motor speed corresponding to the minimum power consumption; The minimum power consumption and the corresponding motor speed at each static pressure value are obtained in a similar manner. Based on the minimum power consumption and the corresponding motor speed at each static pressure value, the relationship between each static pressure and motor speed and minimum power consumption at the same air volume is formed.

9. The air supply control method according to claim 8, characterized in that: The pre-stored relationship between each static pressure, motor speed, and minimum power consumption under different air volumes is obtained in the following manner: changing the air volume value according to a fourth preset amplitude; The air conditioning unit operates according to a first preset air volume, and by changing the rotation speeds of at least two of the motors under different preset static pressures, the minimum power consumption when the air conditioning unit operates according to the first preset air volume under different preset static pressures is obtained, and the motor rotation speed corresponding to the minimum power consumption is recorded; The air conditioning unit operates according to the second preset air volume, and by changing the rotation speeds of at least two of the motors under different preset static pressures, the minimum power consumption when the air conditioning unit operates according to the second preset air volume under different preset static pressures is obtained, and the motor rotation speed corresponding to the minimum power consumption is recorded; In a similar manner, the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume are obtained. Based on the minimum power consumption and the corresponding motor speed for different preset static pressures under each preset air volume, the relationship between each static pressure and motor speed and minimum power consumption under different air volumes is formed.

10. The air supply control method according to claim 1, characterized in that: The specific method of detecting the current air volume is: The current wind speed of the air supply is obtained through the wind speed sensor, and the current air volume is calculated based on the current wind speed.

11. The air supply control method according to claim 6, characterized in that: Methods for setting preset air volume include: If the preset air volume is greater than the maximum set air volume Fmax, a prompt is given that the air volume exceeds the limit.

12. An air supply control device, characterized in that: The device comprises: A detection module is used to detect the current air volume and the current static pressure; A judgment module is used to obtain a preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure according to the pre-stored relationship between each static pressure, motor speed, and the lowest power consumption under different air volumes; The control module is used to adjust the motor speed according to the preset motor speed for achieving the lowest power consumption operation under the current air volume and the current static pressure, and the motor operates at the preset motor speed.

13. An electronic device, characterized in that: include: a memory, and one or more processors communicatively coupled to the memory; The memory stores instructions that can be executed by the one or more processors, and the instructions are executed by the one or more processors so that the one or more processors implement the air supply control method as described in any one of claims 1 to 11.

14. An air conditioning unit, characterized in that: include: It adopts the air supply control method according to any one of claims 1-11, or includes the electronic device according to claim 13.

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