A control method and device of an air conditioning system, the air conditioning system and a storage medium

Abstract

The application discloses a control method and device of an air conditioning system, the air conditioning system and a storage medium, and relates to the technical field of air conditioning systems. The method comprises the following steps: in a combined refrigeration mode of the air conditioner and a vortex tube, determining whether refrigeration control logic of the air conditioner or refrigeration control logic of the vortex tube is needed according to a current indoor environment temperature; if it is determined that the refrigeration control logic of the vortex tube is needed, controlling the air conditioner to be turned off and the vortex tube to be turned on, and resetting and timing the refrigeration running time of the vortex tube to enter the refrigeration control logic of the vortex tube; and in the refrigeration control logic of the vortex tube, adjusting the air supply pressure and the cold flow ratio of the vortex tube according to the current indoor environment temperature and in combination with the refrigeration running time of the vortex tube. According to the scheme, the vortex tube is used for refrigeration in the case of small refrigeration load in the combined refrigeration mode of the air conditioner and the vortex tube, the output of the refrigeration capacity is consistent with the indoor demand, the use comfort of the user is improved, and energy saving is beneficial.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning system technology, specifically relating to a control method, device, air conditioning system and storage medium for an air conditioning system, and particularly to a method, device, air conditioning system and storage medium for temperature control and refrigeration in conjunction with an air conditioner and a vortex tube. Background Technology

[0002] When an air conditioner is running at night, as the outdoor temperature drops, the air conditioner's cooling capacity increases, while the indoor load remains unchanged or changes only slightly. This causes the indoor air supply temperature to drop, making people feel cold. In severe cases, it can even wake people up from their sleep due to the cold. This not only affects the user's comfort (such as sleep comfort) but is also detrimental to energy conservation.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a control method, device, air conditioning system, and storage medium for an air conditioning system, in order to solve the problem that when the outdoor ambient temperature is low and the indoor load remains unchanged or changes little, the cooling capacity of the air conditioner increases, causing the indoor supply air temperature to drop, which affects user comfort and is not conducive to energy saving. The invention achieves this by adopting a linkage cooling mode of air conditioning and vortex tubes, using vortex tube cooling when the cooling load is low, so that the output of cooling capacity is consistent with the indoor demand, thereby improving user comfort and promoting energy saving.

[0005] This invention provides a control method for an air conditioning system, wherein the air conditioning system includes an air conditioner and a vortex tube; the air conditioning system is capable of realizing a combined cooling mode of the air conditioner and the vortex tube; the control method for the air conditioning system includes: when the air conditioning system is turned on for cooling and operating in the combined cooling mode of the air conditioner and the vortex tube, acquiring the indoor ambient temperature of the environment where the air conditioning system is located, and recording it as the current indoor ambient temperature of the air conditioning system; based on the current indoor ambient temperature of the air conditioning system, determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube; if it is determined that the air conditioning system needs to enter... The air conditioner's cooling control logic controls the air conditioner to turn on and the vortex tube to turn off, thereby controlling the air conditioning system to enter the air conditioner's cooling control logic. If it is determined that the air conditioning system needs to enter the vortex tube's cooling control logic, the air conditioner is turned off and the vortex tube is turned on, and the vortex tube's cooling operation time is reset to zero and then restarted, thereby controlling the air conditioning system to enter the vortex tube's cooling control logic. Furthermore, under the air conditioning system's entry into the vortex tube's cooling control logic, the air supply pressure and cold flow ratio of the vortex tube are adjusted according to the current indoor ambient temperature of the air conditioning system and in conjunction with the vortex tube's cooling operation time.

[0006] In some implementations, determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube, based on the current indoor ambient temperature of the air conditioning system, includes: if the current indoor ambient temperature of the air conditioning system is greater than the target ambient temperature of the air conditioning system, determining whether the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold; if the current indoor ambient temperature of the air conditioning system is determined to be less than or equal to the preset first temperature threshold, then determining that the air conditioning system needs to enter the cooling control logic of the vortex tube; if the current indoor ambient temperature of the air conditioning system is determined to be greater than the preset first temperature threshold, then determining that the air conditioning system needs to enter the cooling control logic of the vortex tube. The cooling control logic is adjusted; and / or, based on the current indoor ambient temperature of the air conditioning system and the cooling operation time of the vortex tube, the air supply pressure and cooling flow ratio of the vortex tube are adjusted, including: using the default air supply pressure set in the program as the current air supply pressure of the vortex tube, using the default cooling flow ratio set in the program as the current cooling flow ratio of the vortex tube, and resetting and re-timing the air supply pressure adjustment time of the vortex tube; performing PID adjustment on the current cooling flow ratio of the vortex tube based on the current indoor ambient temperature of the air conditioning system; and adjusting the current air supply pressure of the vortex tube based on the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube.

[0007] In some embodiments, the current cooling flow ratio of the vortex tube is adjusted using PID control based on the current indoor ambient temperature of the air conditioning system. This includes: determining the difference between the current indoor ambient temperature of the air conditioning system and the target ambient temperature of the air conditioning system, denoted as the current temperature deviation of the air conditioning system; determining the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller; determining the current movement step of the flow divider cone of the vortex tube based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller; and controlling the flow divider cone of the vortex tube to move according to the determined current movement step, thereby adjusting the current cooling flow ratio of the vortex tube and obtaining a new current cooling flow ratio of the vortex tube.

[0008] In some embodiments, determining the current movement step of the vortex tube's flow divider cone based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller includes: setting a sampling period for the current indoor ambient temperature of the air conditioning system; recording the difference between the current indoor ambient temperature of the air conditioning system obtained from the nth sampling and the target ambient temperature as the current temperature deviation of the air conditioning system determined in the nth sampling; where n is a positive integer; using the product of the set proportional control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth sampling as the current proportional control opening of the PID controller determined in the nth sampling; and summing the product of the set integral control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth sampling with the current integral control opening of the PID controller determined in the (n-1)th sampling as the current integral control opening of the PID controller determined in the nth sampling; and... The difference between the current temperature deviation of the air conditioning system determined in the nth determination and the current temperature deviation of the air conditioning system determined in the (n-1)th determination, and the product of this value and the set derivative adjustment coefficient of the PID controller, is used as the current derivative adjustment opening of the PID controller determined in the nth determination. The sum of the current proportional adjustment opening, the current integral adjustment opening, and the current derivative adjustment opening of the PID controller determined in the nth determination is used as the current opening of the vortex tube determined in the nth determination. The difference between the current opening of the vortex tube determined in the nth determination and the current opening of the vortex tube determined in the (n-1)th determination is used as the current moving step of the vortex tube's flow divider cone determined in the nth determination. This allows the flow divider cone of the vortex tube to move according to the current moving step of the vortex tube's flow divider cone determined in the nth determination, thereby adjusting the current cold flow ratio of the vortex tube and obtaining a new current cold flow ratio of the vortex tube.

[0009] In some embodiments, the current air supply pressure of the vortex tube is adjusted based on the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube. This includes: determining whether the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment; if the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, then the current air supply pressure of the vortex tube is increased based on the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube; if the current indoor ambient temperature of the air conditioning system is less than the sum of a preset target ambient temperature and a second set temperature increment, but greater than the preset target ambient temperature, then the current air supply pressure of the vortex tube is decreased based on the current indoor ambient temperature of the air conditioning system.

[0010] In some embodiments, adjusting the current supply pressure of the vortex tube to increase based on the cooling operation time of the vortex tube and the supply pressure adjustment time of the vortex tube includes: determining whether the cooling operation time of the vortex tube is less than or equal to a first set time; if it is determined that the cooling operation time of the vortex tube is greater than the first set time, then controlling the air conditioning system to exit the cooling control logic of the vortex tube, and then controlling the air conditioning system to enter the cooling control logic of the air conditioner; wherein controlling the air conditioning system to exit the cooling control logic of the vortex tube, and then controlling the air conditioning system to enter the cooling control logic of the air conditioner includes: first adjusting the cooling operation time of the vortex tube... Under the control logic, based on the current indoor ambient temperature of the air conditioning system and the cooling operation time of the vortex tube, the air supply pressure and cold flow ratio of the vortex tube are adjusted. If the cooling operation time of the vortex tube exceeds a first set time, the vortex tube is controlled to close, and the air conditioner is controlled to turn on. If the cooling operation time of the vortex tube is determined to be less than or equal to the first set time, it is then determined whether the pressure adjustment time interval of the air conditioning system is greater than or equal to a second set time. If so, the outlet pressure of the vortex tube's gas tank is increased to increase the current air supply pressure of the vortex tube. Then, the process returns to the default air supply pressure set in the program as the current air supply pressure of the vortex tube. The default cold flow ratio is set as the current cold flow ratio of the vortex tube, and the air supply pressure adjustment time of the vortex tube is reset to zero and restarted; otherwise, it returns to the previous state to re-adjust the current cold flow ratio of the vortex tube according to the current indoor ambient temperature of the air conditioning system; and / or, adjust the current air supply pressure of the vortex tube to decrease according to the current indoor ambient temperature of the air conditioning system, including: determining whether the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset target ambient temperature and the second set temperature increment; if it is determined that the current indoor ambient temperature of the air conditioning system is greater than the sum of the preset target ambient temperature and the second set temperature increment, then it returns to the previous state. The system readjusts the current cooling flow ratio of the vortex tube according to the current indoor ambient temperature of the air conditioning system using PID control. If the current indoor ambient temperature of the air conditioning system is determined to be less than or equal to the sum of the preset target ambient temperature and the second set temperature increment, then it determines whether the current indoor ambient temperature of the air conditioning system is less than or equal to the target ambient temperature of the air conditioning system. If so, the vortex tube and the entire air conditioning system are shut down. Otherwise, the outlet pressure of the air tank of the vortex tube is reduced to decrease the current air supply pressure of the vortex tube, and then the system returns to readjust the current cooling flow ratio of the vortex tube according to the current indoor ambient temperature of the air conditioning system using PID control.

[0011] In some embodiments, the method further includes: controlling the air conditioner to operate in cooling mode under the cooling control logic of the air conditioner; determining whether the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to a preset first temperature threshold; if it is determined that the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to the preset first temperature threshold, then controlling the air conditioning system to exit the cooling control logic of the air conditioner, and then controlling the air conditioning system to enter the cooling control logic of the vortex tube; if it is determined that the current indoor ambient temperature of the air conditioning system has not decreased to less than or equal to the preset first temperature threshold, then continuing to control the air conditioner to operate in cooling mode.

[0012] In accordance with the above method, another aspect of the present invention provides a control device for an air conditioning system, wherein the air conditioning system has an air conditioner and a vortex tube; the air conditioning system is capable of realizing a combined cooling mode of the air conditioner and the vortex tube; the control device for the air conditioning system includes: an acquisition unit configured to acquire, and record as the current indoor ambient temperature of the environment where the air conditioning system is located, when the air conditioning system is turned on in cooling mode and operating in the combined cooling mode of the air conditioner and the vortex tube; a control unit configured to determine, based on the current indoor ambient temperature of the air conditioning system, whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube; the control unit is further configured to, if it is determined that the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube, then... If the air conditioning system needs to enter the air conditioning cooling control logic, then the air conditioner is turned on and the vortex tube is turned off, so as to control the air conditioning system to enter the air conditioning cooling control logic; the control unit is also configured to, if it is determined that the air conditioning system needs to enter the vortex tube cooling control logic, then the air conditioner is turned off and the vortex tube is turned on, and the cooling operation time of the vortex tube is reset to zero and then restarted, so as to control the air conditioning system to enter the vortex tube cooling control logic; and the control unit is also configured to, under the condition that the air conditioning system enters the vortex tube cooling control logic, adjust the air supply pressure and cold flow ratio of the vortex tube according to the current indoor ambient temperature of the air conditioning system and in combination with the cooling operation time of the vortex tube.

[0013] In some implementations, the control unit determines whether the air conditioning system needs to enter the air conditioning's cooling control logic or the vortex tube's cooling control logic based on the current indoor ambient temperature of the air conditioning system. This includes: if the current indoor ambient temperature of the air conditioning system is greater than the target ambient temperature of the air conditioning system, determining whether the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold; if the current indoor ambient temperature of the air conditioning system is determined to be less than or equal to the preset first temperature threshold, then determining that the air conditioning system needs to enter the vortex tube's cooling control logic; if the current indoor ambient temperature of the air conditioning system is determined to be greater than the preset first temperature threshold, then determining that the air conditioning system needs to enter... The cooling control logic of the air conditioner; and / or, based on the current indoor ambient temperature of the air conditioning system and in conjunction with the cooling operation time of the vortex tube, adjusting the air supply pressure and cooling flow ratio of the vortex tube, including: using the default air supply pressure set in the program as the current air supply pressure of the vortex tube, using the default cooling flow ratio set in the program as the current cooling flow ratio of the vortex tube, and resetting and re-timing the air supply pressure adjustment time of the vortex tube; performing PID adjustment on the current cooling flow ratio of the vortex tube based on the current indoor ambient temperature of the air conditioning system; and adjusting the current air supply pressure of the vortex tube based on the current indoor ambient temperature of the air conditioning system, in conjunction with the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube.

[0014] In some embodiments, the control unit performs PID adjustment on the current cooling flow ratio of the vortex tube based on the current indoor ambient temperature of the air conditioning system. This includes: determining the difference between the current indoor ambient temperature of the air conditioning system and the target ambient temperature of the air conditioning system, denoted as the current temperature deviation of the air conditioning system; determining the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller; determining the current movement step of the vortex tube's flow divider cone based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller; and controlling the vortex tube's flow divider cone to move according to the determined current movement step, thereby adjusting the current cooling flow ratio of the vortex tube and obtaining a new current cooling flow ratio of the vortex tube.

[0015] In some embodiments, the control unit determines the current number of movement steps of the vortex tube's flow divider cone based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller. This includes: setting a sampling period for the current indoor ambient temperature of the air conditioning system; recording the difference between the current indoor ambient temperature of the air conditioning system obtained from the nth sampling and the target ambient temperature as the current temperature deviation of the air conditioning system determined in the nth sampling, where n is a positive integer; using the product of the set proportional control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth sampling as the current proportional control opening of the PID controller determined in the nth sampling; and summing the product of the set integral control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth sampling with the current integral control opening of the PID controller determined in the (n-1)th sampling, as the current integral control opening of the PID controller determined in the nth sampling. Furthermore, the product of the difference between the current temperature deviation of the air conditioning system determined in the nth determination and the current temperature deviation of the air conditioning system determined in the (n-1)th determination, and the set derivative adjustment coefficient of the PID controller, is used as the current derivative adjustment opening of the PID controller determined in the nth determination; the current proportional adjustment opening of the PID controller determined in the nth determination, the current integral adjustment opening of the PID controller determined in the nth determination, and the current... The sum of the pre-differential adjustment openings is used as the current opening of the vortex tube determined in the nth determination; the difference between the current opening of the vortex tube determined in the nth determination and the current opening of the vortex tube determined in the (n-1)th determination is used as the current moving step of the vortex tube's flow divider cone determined in the nth determination, so as to control the flow divider cone of the vortex tube to move according to the current moving step of the flow divider cone of the vortex tube determined in the nth determination, thereby adjusting the current cold flow ratio of the vortex tube and obtaining a new current cold flow ratio of the vortex tube.

[0016] In some embodiments, the control unit adjusts the current air supply pressure of the vortex tube based on the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube. This includes: determining whether the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment; if the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, then increasing the current air supply pressure of the vortex tube based on the cooling operation time of the vortex tube and the air supply pressure adjustment time of the vortex tube; if the current indoor ambient temperature of the air conditioning system is less than the sum of a preset target ambient temperature and a second set temperature increment, but greater than the preset target ambient temperature, then decreasing the current air supply pressure of the vortex tube based on the current indoor ambient temperature of the air conditioning system.

[0017] In some embodiments, the control unit adjusts the current supply pressure of the vortex tube by increasing the current supply pressure of the vortex tube based on the cooling operation time of the vortex tube and the supply pressure adjustment time of the vortex tube, including: determining whether the cooling operation time of the vortex tube is less than or equal to a first set time; if it is determined that the cooling operation time of the vortex tube is greater than the first set time, then controlling the air conditioning system to exit the cooling control logic of the vortex tube, and then controlling the air conditioning system to enter the cooling control logic of the air conditioner; wherein, controlling the air conditioning system to exit the cooling control logic of the vortex tube, and then controlling the air conditioning system to enter the cooling control logic of the air conditioner includes: first adjusting the current supply pressure of the vortex tube... Under the refrigeration control logic, based on the current indoor ambient temperature of the air conditioning system and the refrigeration operation time of the vortex tube, the air supply pressure and cold flow ratio of the vortex tube are adjusted. If the refrigeration operation time of the vortex tube exceeds a first set time, the vortex tube is controlled to close, and the air conditioner is controlled to turn on. If the refrigeration operation time of the vortex tube is determined to be less than or equal to the first set time, it is then determined whether the pressure adjustment time interval of the air conditioning system is greater than or equal to a second set time. If so, the outlet pressure of the vortex tube's gas tank is increased to increase the current air supply pressure of the vortex tube. Then, the process returns to the default air supply pressure set in the program as the current air supply pressure of the vortex tube. The default cold flow ratio is set as the current cold flow ratio of the vortex tube, and the air supply pressure adjustment time of the vortex tube is reset to zero and restarted; otherwise, it returns to the previous state to re-adjust the current cold flow ratio of the vortex tube according to the current indoor ambient temperature of the air conditioning system using PID control; and / or, the control unit adjusts the current air supply pressure of the vortex tube to decrease according to the current indoor ambient temperature of the air conditioning system, including: determining whether the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset target ambient temperature and the second set temperature increment; if it is determined that the current indoor ambient temperature of the air conditioning system is greater than the sum of the preset target ambient temperature and the second set temperature increment, then The system returns to the previous state to readjust the current cooling flow ratio of the vortex tube based on the current indoor ambient temperature of the air conditioning system using PID control. If the current indoor ambient temperature of the air conditioning system is determined to be less than or equal to the sum of the preset target ambient temperature and the second set temperature increment, then it is determined whether the current indoor ambient temperature of the air conditioning system is less than or equal to the target ambient temperature of the air conditioning system. If so, the vortex tube and the entire air conditioning system are shut down. Otherwise, the outlet pressure of the air tank of the vortex tube is reduced to decrease the current air supply pressure of the vortex tube. Then, the system returns to the previous state to readjust the current cooling flow ratio of the vortex tube based on the current indoor ambient temperature of the air conditioning system using PID control.

[0018] In some embodiments, the system further includes: the control unit is further configured to control the air conditioner to operate in cooling mode under the cooling control logic of the air conditioner; the control unit is further configured to determine whether the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to a preset first temperature threshold; the control unit is further configured to, if it is determined that the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to the preset first temperature threshold, control the air conditioning system to exit the cooling control logic of the air conditioner, and then control the air conditioning system to enter the cooling control logic of the vortex tube; the control unit is further configured to, if it is determined that the current indoor ambient temperature of the air conditioning system has not decreased to less than or equal to the preset first temperature threshold, continue to control the air conditioner to operate in cooling mode.

[0019] In conjunction with the above-described device, the present invention further provides an air conditioning system, comprising: the control device for the air conditioning system described above.

[0020] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, the device on which the storage medium is located controls the execution of the control method of the air conditioning system described above.

[0021] Therefore, the solution of this invention, for an air conditioning system with an air conditioner and a vortex tube, when the user turns on the air conditioning and selects the linked cooling mode of the air conditioner and the vortex tube, if the indoor ambient temperature is higher than the user's set temperature, determines whether to enter the air conditioning cooling control logic or the vortex tube cooling control logic based on the relationship between the indoor ambient temperature and a preset first temperature threshold. If the vortex cooling control logic is entered, the cooling flow ratio of the vortex tube is adjusted using PID control based on the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, based on the relationship between the indoor ambient temperature and the user's set temperature and the preset first temperature threshold, and combined with the vortex tube's cooling time and pressure adjustment time interval, the air supply pressure of the vortex tube is adjusted, or the vortex tube is stopped or switched to the air conditioning cooling control logic. If the air conditioning cooling control logic is entered, the air conditioning cooling control logic is executed or the vortex tube cooling control logic is switched based on the relationship between the indoor ambient temperature and the preset first temperature threshold. Thus, by adopting the linked cooling mode of the air conditioner and the vortex tube, vortex tube cooling is used when the cooling load is low, ensuring that the cooling output matches the indoor demand, improving user comfort and contributing to energy saving.

[0022] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating an embodiment of the control method for an air conditioning system according to the present invention;

[0025] Figure 2 This is a flowchart illustrating an embodiment of the method of the present invention for determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1.

[0026] Figure 3 This is a schematic flowchart of an embodiment of the method of the present invention for adjusting the gas supply pressure and cold flow ratio of the vortex tube 1;

[0027] Figure 4 This is a schematic flowchart of an embodiment of the method of the present invention for PID adjustment of the current cooling flow ratio of the vortex tube 1;

[0028] Figure 5 This is a flowchart illustrating an embodiment of the method of the present invention for determining the current number of moving steps of the flow divider cone 11 of the vortex tube 1;

[0029] Figure 6 This is a schematic flowchart of an embodiment of the method of the present invention for adjusting the current air supply pressure of the vortex tube 1;

[0030] Figure 7 This is a schematic flowchart of an embodiment of the method of the present invention, which increases the current air supply pressure of the vortex tube 1.

[0031] Figure 8 This is a schematic flowchart of an embodiment of the method of the present invention, which involves reducing the current air supply pressure of the vortex tube 1.

[0032] Figure 9 This is a flowchart illustrating an embodiment of the method of the present invention for determining whether to switch the cooling control logic;

[0033] Figure 10 This is a schematic diagram of the structure of an embodiment of the control device for the air conditioning system of the present invention;

[0034] Figure 11 A schematic diagram of one embodiment of a vortex tube;

[0035] Figure 12 A schematic diagram of the refrigeration operation process of an air conditioner equipped with a vortex tube for precise temperature control.

[0036] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0037] 1-Vortex tube; 11-Flow divider cone; 12-Hot gas outlet; 13-Air inlet; 14-Cold gas outlet; 102-Acquisition unit; 104-Control unit. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0039] The air conditioning system in the relevant solution adjusts the cooling capacity output by detecting the outdoor ambient temperature and the temperature difference between the indoor ambient temperature and the set temperature. However, under certain conditions, its cooling capacity output is inconsistent and still too large relative to the indoor load demand, failing to meet the requirement of precise supply of small cooling capacity. This not only affects the user's comfort (such as sleep comfort) but is also not conducive to energy saving.

[0040] The "specific conditions" refer to situations (such as late at night) where the outdoor temperature is low, requiring less cooling capacity, yet the air conditioner's output is still excessive. The cooling capacity is adjusted by detecting the outdoor temperature and the difference between the indoor temperature and the set temperature. Specifically, it adjusts the compressor operating frequency, electronic expansion valve opening, and fan speed based on the external environment and remote control settings. This is zoned, so the boundaries between zones are not continuous. Under these specific conditions, even late at night, the air conditioner's cooling output may still be excessive, making people feel cold.

[0041] Therefore, the present invention proposes a control method for an air conditioning system, specifically a method for temperature control and cooling in conjunction with an air conditioner and a vortex tube 1. The vortex tube 1 is used in conjunction with the air conditioner. When the cooling load is low, the vortex tube 1 is used for cooling. The advance and retreat of the flow divider cone of the vortex tube 1 is adjusted by PID regulation to precisely control the cooling output and precisely control the indoor ambient temperature to the user-set temperature. This achieves precise temperature control and cooling, ensuring that the cooling output under specific conditions matches the indoor demand and improving user comfort (such as sleep comfort).

[0042] According to embodiments of the present invention, a control method for an air conditioning system is provided, such as... Figure 1 The diagram shows a flowchart of an embodiment of the method of the present invention. The air conditioning system includes an air conditioner and a vortex tube 1; the air conditioning system is capable of implementing a combined cooling mode of the air conditioner and the vortex tube 1; in the combined cooling mode of the air conditioner and the vortex tube 1, the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1 can be run. Specifically, Figure 11 This is a schematic diagram of one embodiment of a vortex tube. Figure 11 The vortex tube 1 shown includes: a body of the vortex tube 1 and a flow divider cone 11; the body of the vortex tube 1 is provided with an air inlet 13, a hot air outlet 12, and a cold air outlet 14. The flow divider cone 11 is disposed on the end of the body of the vortex tube 1 away from the cold air outlet 14. See also... Figure 11 In the example shown, compressed air enters the vortex tube 1 through the nozzle at the inlet 13 along the circumference of the vortex tube 1. Inside the vortex tube 1, it rotates at high speed, generating a vortex effect that separates the airflow into two parts with different temperatures. The outer, high-temperature gas is discharged from the hot gas outlet 12, while the central, low-temperature gas encounters the obstruction of the flow divider cone 11 and is discharged from the cold gas outlet 14. One end of the flow divider cone 11 has a thread. Rotating the flow divider cone 11 along its threaded end allows it to move forward or backward, thereby adjusting the cold flow ratio of the vortex tube 1, i.e., adjusting the flow rate and temperature of the cold gas outlet 14.

[0043] In the solution of the present invention, such as Figure 1 As shown, the control method of the air conditioning system includes steps S110 to S150.

[0044] In step S110, when the air conditioning system is turned on and operating in the combined cooling mode of the air conditioner and the vortex tube 1, the indoor ambient temperature of the environment where the air conditioning system is located is obtained and recorded as the current indoor ambient temperature of the air conditioning system (e.g., indoor ambient temperature T). 内环 The combined cooling mode of the air conditioner and the vortex tube 1 means that, in the cooling mode of the air conditioning system, either the air conditioner can be controlled to perform cooling independently, or the vortex tube 1 can be controlled to perform cooling independently. Specifically, Figure 12 A schematic diagram of the refrigeration operation process for precise temperature control in an air conditioner equipped with a vortex tube 1. (See diagram below.) Figure 12 As shown, the vortex tube 1 and the air conditioner constitute an air conditioning system. In this system, the vortex tube 1 and the air conditioner work together to form a precisely temperature-controlled refrigeration system. The refrigeration control logic of this system includes two parts: vortex tube 1 refrigeration and air conditioner refrigeration. The vortex tube 1 can be placed on the left and right sides of the indoor unit, without affecting the air intake; however, a dedicated structure needs to be installed in the indoor unit to secure the vortex tube 1. Figure 12 As shown, the refrigeration operation process of the air conditioner with precise temperature control using vortex tube 1 includes:

[0045] Step 1: Turn on the air conditioning system consisting of the air conditioner and vortex tube 1, and then proceed to Step 2.

[0046] Step 2: Set the air conditioner's cooling temperature, fan speed, and other parameters. Also, set the PID control parameters in the PID control mode, such as the proportional control parameter K. p Integral adjustment parameter Ki and differential adjustment parameter K d Then proceed to step 3. For example: based on the room size, number of people, and other heat load factors, and in conjunction with vortex tube 1, determine K. p K i K d Adjustment coefficient. The set cooling temperature of the air conditioner is denoted as the user-set temperature T. 设 .

[0047] Step 3: Activate the linked cooling mode of the air conditioner and vortex tube 1, and detect the indoor ambient temperature T. 内环 Then proceed to step 4. For example: when the air conditioner is turned on at night, if the air conditioner and the vortex tube 1 are activated in linkage cooling mode, the controller will detect the indoor ambient temperature T. 内环 Then proceed to step 4.

[0048] In step S120, based on the current indoor ambient temperature of the air conditioning system, it is determined whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1.

[0049] In some implementations, the specific process of determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1 based on the current indoor ambient temperature of the air conditioning system in step S120 is illustrated in the following exemplary description.

[0050] The following is combined with Figure 2 The flowchart shown is a schematic diagram of an embodiment of the method of the present invention for determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1. It further illustrates the specific process of determining whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1 in step S120, including steps S210 to S230.

[0051] Step S210: If the current indoor ambient temperature of the air conditioning system is greater than the target ambient temperature of the air conditioning system, determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold. The preset first temperature threshold is greater than the target ambient temperature of the air conditioning system. The target ambient temperature of the air conditioning system is the user-set temperature of the environment where the air conditioning system is located; the preset first temperature threshold is, for example, temperature T1.

[0052] Step S220: If it is determined that the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold, then it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube 1.

[0053] Step S230: If it is determined that the current indoor ambient temperature of the air conditioning system is greater than the preset first temperature threshold, then it is determined that the air conditioning system needs to enter the cooling control logic of the air conditioner.

[0054] Specifically, such as Figure 12 As shown, the air conditioner's cooling operation process with precise temperature control via vortex tube 1 also includes: Step 4, setting the indoor ambient temperature T... 内环 ≥ User-set temperature T 设 Under these circumstances, determine whether the indoor ambient temperature T is met. 内环 If the temperature is ≤ the preset first temperature threshold T1℃: otherwise, proceed to step 5, which executes the air conditioning cooling control logic; otherwise, proceed to step 6, which executes the vortex tube 1 cooling control logic. Wherein, the preset first temperature threshold T1℃ > the user-set temperature T 设 .

[0055] In step S130, if it is determined that the air conditioning system needs to enter the air conditioning cooling control logic, then the air conditioner is controlled to turn on and the vortex tube 1 is controlled to close. Specifically, the air conditioner is controlled to turn on and the air supply valve of the vortex tube 1 is controlled to close, so as to control the air conditioning system to enter the air conditioning cooling control logic. Specifically, as... Figure 12 As shown, the air conditioner's precise temperature control cooling operation process, equipped with vortex tube 1, also includes: Step 5, if the indoor ambient temperature T 内环 If the preset first temperature threshold T1℃ is set, it is determined that the cooling system needs to be turned on, and the air conditioning system is controlled to start. Specifically, the air conditioner is turned on, the vortex air supply valve is closed, and the air conditioner starts cooling operation.

[0056] In step S140, if it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube 1, then the air conditioner is controlled to shut down and the vortex tube 1 is controlled to open. Specifically, the air conditioner is controlled to shut down and the gas supply valve of the vortex tube 1 is controlled to open. The cooling operation time of the vortex tube 1 is reset to zero and then restarted to control the air conditioning system to enter the cooling control logic of the vortex tube 1. The cooling operation time of the vortex tube 1 is the cooling time t1 of the vortex tube 1.

[0057] In step S150, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, the air supply pressure and cold flow ratio of the vortex tube 1 are adjusted according to the current indoor ambient temperature of the air conditioning system and in combination with the cooling operation time of the vortex tube 1. Specifically, as follows... Figure 12As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 6: Turn on the cooling of vortex tube 1. At this time, open the air supply valve of vortex tube 1 to start the cooling of vortex tube 1. If the air conditioner is not turned on or the air conditioner is already turned on, stop the cooling operation to execute the cooling of vortex tube 1. Then, proceed to step 61. Step 61: After entering the cooling phase of vortex tube 1, reset the cooling time t1 of vortex tube 1 to zero and start the timing again. Then, proceed to step 62. After that, start executing step 62 to adjust the air supply pressure of the air supply valve of vortex tube 1.

[0058] This invention provides a method for coordinated temperature control and cooling of an air conditioner and a vortex tube 1. The vortex tube 1 is linked to the air conditioner. When the indoor ambient temperature is high, the air conditioner cools normally. When the indoor ambient temperature drops to a first specific value, the air conditioner shuts off and the vortex tube 1 starts cooling. During the cooling process of the vortex tube 1, the supply pressure of the vortex tube 1 is adjusted, and the advance and retreat of the flow divider cone of the vortex tube 1 is regulated using a PID control method to precisely control the cold air flow and temperature. This achieves precise control of a small cooling capacity supply, bringing the indoor ambient temperature closer to the set temperature and maintaining stability. Through precise temperature control and cooling, the cooling capacity output under specific conditions matches the indoor demand, improving user comfort (such as sleep comfort). Thus, when the cooling load is low, the vortex tube 1 is used for cooling, and the advance and retreat of the flow divider cone of the vortex tube 1 is regulated using a PID control method to precisely control the cooling capacity output and the indoor ambient temperature to the user's set temperature. The vortex tube 1 provides a small but precisely adjustable cooling capacity to meet the cooling load demand after a person falls asleep at night, providing a better air-conditioned environment for the user's sleep.

[0059] In this invention, the supply pressure of the vortex tube 1 is adjusted to make the cooling capacity supply roughly equal to the indoor heat load. Based on the indoor environmental load and the parameters of the vortex tube 1, the parameters of the PID control are determined to precisely control the small cooling capacity supply. During the cooling period of the vortex tube 1, if the heat load increases and causes the indoor ambient temperature to rise to a second specific value, the cooling of the vortex tube 1 is turned off, and the air conditioning cooling is restarted. Thus, the cooling of the vortex tube 1 and the air conditioning cooling are linked, especially when the heat load is low during sleep at night. This allows for precise control of the cooling capacity input into the room, maintaining a comfortable air-conditioned environment and preventing people from waking up from the cold at night. In this way, when people sleep with the air conditioning on at night, they sometimes feel cold or even wake up from the cold. By linking the vortex tube 1, under specific conditions, the air conditioning cooling is stopped, and the vortex tube 1 cooling is turned on. Because the cooling capacity provided by the vortex tube 1 is small and can be continuously and precisely controlled, it can meet the small and precise cooling load requirements under the set air conditioning conditions, assisting in cooling and improving the user's sleep environment.

[0060] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 in step S150, the specific process of adjusting the air supply pressure and cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system and in combination with the cooling operation time of the vortex tube 1 is described in the following exemplary description.

[0061] The following is combined with Figure 3 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for adjusting the gas supply pressure and cold flow ratio of the vortex tube 1. It further illustrates the wavelet packet analysis process of online monitoring in step S150, including steps S310 to S330.

[0062] Step S310: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the vortex tube 1, the default air supply pressure set in the program is used as the current air supply pressure of the vortex tube 1, the default cold flow ratio set in the program is used as the current cold flow ratio of the vortex tube 1, and the air supply pressure adjustment time of the vortex tube 1 is reset to zero and restarted. Specifically, as follows... Figure 12 As shown, the refrigeration operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 62, setting the supply pressure of vortex tube 1 to the default pressure, setting the screw cone position of the flow divider cone 11 of vortex tube 1 to the default position, and resetting the pressure adjustment time interval t2 of vortex tube 1 to zero and resetting the timer, and then executing step 63. The pressure adjustment time interval t2 of vortex tube 1 only needs to be less than the cooling time t1 of vortex tube 1. If the cooling capacity is insufficient, PID adjustment is performed first; if the cooling capacity is still insufficient, pressure is adjusted. The purpose of setting the pressure adjustment time interval t2 of vortex tube 1 is to prevent frequent pressure adjustments.

[0063] Step S320: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, the current cooling flow ratio of the vortex tube 1 is adjusted by PID according to the current indoor ambient temperature of the air conditioning system. Specifically, as follows... Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 63, monitoring the indoor ambient temperature T 内环 Calculate the change in indoor ambient temperature T 内环 With user-set temperature T 设 The difference between them; based on the calculated indoor ambient temperature T 内环 With user-set temperature T 设The difference between them is used to calculate the number of steps the flow divider cone 11 moves forward and backward through the PID controller with the pre-set adjustment parameters. Based on the calculated number of steps the flow divider cone 11 moves forward and backward, the position of the screw cone of the flow divider cone 11 is adjusted to change the cold flow ratio of the vortex tube 1. Then, step 64 is executed.

[0064] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 in step S320, the specific process of adjusting the current cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system under the cooling control logic of the vortex tube 1 is described in the following exemplary description.

[0065] The following is combined with Figure 4 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for PID adjustment of the current cold flow ratio of the vortex tube 1. It further illustrates the specific process of PID adjustment of the current cold flow ratio of the vortex tube 1 in step S320, including steps S410 to S430.

[0066] Step S410: Determine the difference between the current indoor ambient temperature of the air conditioning system and the target ambient temperature of the air conditioning system, and record it as the current temperature deviation of the air conditioning system; and determine the set proportional control coefficient, set integral control coefficient and set derivative control coefficient of the PID controller.

[0067] Step S420: Based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient and set derivative control coefficient of the PID controller, determine the current number of movement steps of the flow divider cone 11 of the vortex tube 1.

[0068] Step S430: Control the flow divider cone 11 of the vortex tube 1 to move according to the current number of movement steps of the flow divider cone 11 of the vortex tube 1, thereby adjusting the current cold flow ratio of the vortex tube 1 and obtaining a new current cold flow ratio of the vortex tube 1.

[0069] Specifically, such as Figure 12 As shown, the air conditioning system with vortex tube 1 for precise temperature control includes the following cooling operation process: In step 63, when the indoor ambient temperature T... 内环 When the temperature drops to a certain value, the temperature is adjusted via a PID controller. Specifically, the PID controller controls the flow divider cone 11 of the vortex tube 1 to change the cooling flow ratio of the vortex tube 1, thereby achieving temperature adjustment. This "certain temperature value" can be greater than the user-set temperature T. 设 And less than the preset first temperature threshold T1℃+c℃, which can also refer to the temperature range of vortex tube 1 cooling.

[0070] In some embodiments, the specific process of determining the current number of movement steps of the vortex tube 1's flow divider cone 11 based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller in step S420 is described in the following exemplary description.

[0071] The following is combined with Figure 5 The schematic diagram shows an embodiment of the method of the present invention for determining the current number of moving steps of the flow divider cone 11 of the vortex tube 1. The specific process of determining the current number of moving steps of the flow divider cone 11 of the vortex tube 1 in step S420 is further explained, including steps S510 to S540.

[0072] Step S510: Set a sampling period for the current indoor ambient temperature of the air conditioning system, and record the difference between the current indoor ambient temperature of the air conditioning system obtained from the nth sampling and the target ambient temperature as the current temperature deviation of the air conditioning system determined in the nth sampling; where n is a positive integer.

[0073] Step S520: The product of the set proportional control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination is taken as the current proportional control opening of the PID controller determined in the nth determination; the sum of the product of the set integral control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination, and the current integral control opening of the PID controller determined in the (n-1)th determination, is taken as the current integral control opening of the PID controller determined in the nth determination; and the product of the difference between the current temperature deviation of the air conditioning system determined in the nth determination and the current temperature deviation of the air conditioning system determined in the (n-1)th determination, and the set derivative control coefficient of the PID controller is taken as the current derivative control opening of the PID controller determined in the nth determination.

[0074] Step S530: The sum of the current proportional control opening, the current integral control opening, and the current derivative control opening of the PID controller obtained in the nth determination is used as the current opening of the vortex tube 1 obtained in the nth determination.

[0075] Step S540: The difference between the current opening degree of the vortex tube 1 determined in the nth determination and the current opening degree of the vortex tube 1 determined in the (n-1)th determination is used as the current moving step number of the flow divider cone 11 of the vortex tube 1 determined in the nth determination, so as to control the flow divider cone 11 of the vortex tube 1 to move according to the current moving step number of the flow divider cone 11 of the vortex tube 1 determined in the nth determination, thereby adjusting the current cold flow ratio of the vortex tube 1 and obtaining a new current cold flow ratio of the vortex tube 1.

[0076] Specifically, such as Figure 12 As shown, the refrigeration operation process of the air conditioner with precise temperature control using eddy current tube 1 also includes: In step 63, the specific steps of PID controller adjustment are as follows:

[0077] Definition: Temperature deviation ΔT = Indoor ambient temperature T 内环 ℃ - Target ambient temperature T 设 ℃. Proportional adjustment of OUTPUT(P) opening. n =K p *ΔT n Integral adjustment of opening OUTPUT(I) n =OUTPUT(I) n-1 +K i *ΔT n Differential adjustment of the opening OUTPUT(D) n =K d (ΔT n -ΔT n-1 ).

[0078] The number of steps the flow divider cone 11 moves forward and backward is the number of times the opening U is calculated in the nth calculation. (n) Compared with the previous calculation of the nth time, the opening U (n-1) The difference between them is ΔU(n):

[0079] ΔU(n)=U (n) -U (n-1) =K p *(ΔT n -ΔT n-1 )+K i *ΔT n +Kd(ΔT n -2ΔT n-1 +ΔT n-2 ).

[0080] Where U(n) = OUTPU(X)n, X represents P, I, or D; PID control only needs to know the number of steps in this adjustment, that is, it only needs to calculate the difference ΔU(n), and the difference controls the number of steps.

[0081] Step S330: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, the current air supply pressure of the vortex tube 1 is adjusted according to the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1. Specifically, as follows... Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: step 64, adjusting the gas supply pressure of vortex tube 1.

[0082] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 in step S330, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, the specific process of adjusting the current air supply pressure of the vortex tube 1 based on the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1, is described in the following exemplary description.

[0083] The following is combined Figure 6 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for adjusting the current air supply pressure of the vortex tube 1. It further illustrates the specific process of adjusting the current air supply pressure of the vortex tube 1 in step S330, including steps S610 to S630.

[0084] Step S610: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, determine whether the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment. Wherein, the first set temperature increment is, for example, temperature c℃.

[0085] Step S620: After the air conditioning system enters the cooling control logic of the vortex tube 1, under the cooling control logic of the vortex tube 1, after PID adjustment of the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, then the current supply pressure of the vortex tube 1 is increased according to the cooling operation time of the vortex tube 1 and the supply pressure adjustment time of the vortex tube 1.

[0086] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 in step S620, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, and when it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, the specific process of increasing the current air supply pressure of the vortex tube 1 according to the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1 is described in the following exemplary description.

[0087] The following is combined Figure 7 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for increasing the current air supply pressure of the vortex tube 1. It further illustrates the specific process of increasing the current air supply pressure of the vortex tube 1 in step S620, including steps S710 to S750.

[0088] Step S710: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, and if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, it is determined whether the cooling operation time of the vortex tube 1 is less than or equal to a first set time. Wherein, the first set time is, for example, time e.

[0089] Step S720: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, and if it is determined that the cooling operation time of the vortex tube 1 is greater than a first set time, then the air conditioning system is controlled to exit the cooling control logic of the vortex tube 1, and then the air conditioning system is controlled to enter the cooling control logic of the air conditioner. Specifically, controlling the air conditioning system to exit the cooling control logic of the vortex tube 1 and then controlling the air conditioning system to enter the cooling control logic of the air conditioner includes: first, under the cooling control logic of the vortex tube 1, adjusting the air supply pressure and cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system and in combination with the cooling operation time of the vortex tube 1; and after the cooling operation time of the vortex tube 1 is greater than the first set time, then controlling the vortex tube 1 to close and controlling the air conditioner to turn on. The condition for controlling the vortex tube 1 to close and the air conditioner to turn on is the indoor ambient temperature T. 内环>The preset first temperature threshold T1℃+c℃, and the cooling time t1 of the vortex tube 1 is greater than e.

[0090] It should be noted that during the PID controller adjustment period of the vortex tube 1 cooling process, at the indoor ambient temperature T... 内环 Temperatures outside the above range (i.e., the user-set temperature T) 设 ℃+a℃<Indoor ambient temperature T 内环 After the preset first temperature threshold T1℃+c℃ is reached, in order to maintain the stability of the entire air conditioning system, the air conditioning cooling will not be turned on immediately. Instead, the supply pressure of the vortex tube 1 and the PID controller will be adjusted to move the flow divider cone 11 for a period of time before the air conditioning cooling is switched on. For example: T 设 =25℃, then T1=30℃, t1=30min, t2=10min, a=2℃, c=2℃.

[0091] Step S730: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, and the cooling operation time of the vortex tube 1 is less than or equal to the first set time, then it is determined whether the pressure regulation time interval of the air conditioning system is greater than or equal to the second set time.

[0092] Step S740: If yes, increase the outlet pressure of the gas storage tank of the vortex tube 1 to increase the current supply pressure of the vortex tube 1, then return to the previous step, and reset the supply pressure adjustment time of the vortex tube 1 to zero and start timing again.

[0093] Step S750, otherwise, return, so that after the air conditioning system enters the cooling control logic of the vortex tube 1 again, under the cooling control logic of the air conditioning system entering the vortex tube 1, the current cold flow ratio of the vortex tube 1 is adjusted by PID according to the current indoor ambient temperature of the air conditioning system.

[0094] Specifically, such as Figure 12 As shown, the refrigeration operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 7, determining whether the refrigeration time t1 of vortex tube 1 is less than or equal to time e: if so, proceed to step 71; otherwise, proceed to step 5.

[0095] Step 71: Determine whether the pressure adjustment time interval t2 of vortex tube 1 is greater than or equal to d. If so, increase the outlet pressure of the pressure reducing valve of the gas storage tank of vortex tube 1 to increase the cooling capacity, and then return to step 61; otherwise, return to step 63.

[0096] Step S630: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of the preset target ambient temperature and the second set temperature increment, and greater than the preset target ambient temperature, then the current air supply pressure of the vortex tube 1 is reduced according to the current indoor ambient temperature of the air conditioning system.

[0097] Specifically, such as Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: in step 64, determining whether the indoor ambient temperature T is met. 内环 ≥Preset first temperature threshold T1℃+c℃: If so, proceed to step 7 to increase the air supply pressure of vortex tube 1; otherwise, if the indoor ambient temperature ≤Preset target ambient temperature T 设 +a℃ but greater than the preset target ambient temperature T 设 Perform step 8 to reduce the air supply pressure of vortex tube 1.

[0098] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 in step S630, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, and when it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of a preset first temperature threshold and a first set temperature increment, the specific process of reducing the current air supply pressure of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system is described in the following exemplary description.

[0099] The following is combined Figure 8 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for reducing the current air supply pressure of the vortex tube 1. It further illustrates the specific process of reducing the current air supply pressure of the vortex tube 1 in step S630, including steps S810 to S850.

[0100] Step S810: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, and if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of a preset first temperature threshold and a first set temperature increment, it is determined whether the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of a preset target ambient temperature and a second set temperature increment. The second set temperature increment is, for example, temperature a℃.

[0101] Step S820: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of the preset first temperature threshold and the first set temperature increment, and if it is determined that the current indoor ambient temperature of the air conditioning system is greater than the sum of the preset target ambient temperature and the second set temperature increment, then return to the previous step, so that after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1 again, under the cooling control logic of the air conditioning system entering the vortex tube 1, the current cold flow ratio of the vortex tube 1 is adjusted by PID according to the current indoor ambient temperature of the air conditioning system.

[0102] Step S830: After controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cold flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of the preset first temperature threshold and the first set temperature increment, and if it is determined that the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset target ambient temperature and the second set temperature increment, then it is determined whether the current indoor ambient temperature of the air conditioning system is less than or equal to the target ambient temperature of the air conditioning system.

[0103] Step S840: If yes, then control the vortex tube 1 to stop and the entire air conditioning system to stop. Then return to determine whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1, based on the current indoor ambient temperature of the air conditioning system.

[0104] Step S850: Otherwise, reduce the outlet pressure of the gas tank of the vortex tube 1 to reduce the current supply pressure of the vortex tube 1 and thus reduce the cooling capacity. Then return to the previous step to re-enter the cooling control logic of the vortex tube 1 after the air conditioning system enters the cooling control logic of the vortex tube 1. Under the cooling control logic of the vortex tube 1, when the current indoor ambient temperature of the air conditioning system has decreased to less than the sum of the preset target ambient temperature and the second set temperature, but greater than the preset target ambient temperature, perform PID adjustment on the current cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system.

[0105] Specifically, such as Figure 12 As shown, the air conditioner's cooling operation process with precise temperature control via vortex tube 1 also includes: Step 8, determining whether the indoor ambient temperature T is met. 内环 ≤User-set temperature T 设℃+a℃: If yes, proceed to step 81; otherwise, return to step 63.

[0106] Step 81: Determine if the indoor ambient temperature T is met. 内环 ≤User-set temperature T 设 If yes, then control the vortex tube 1 to stop, and then return to step 4 for cyclic control; otherwise, lower the outlet pressure of the pressure reducing valve of the gas storage tank of vortex tube 1, and then return to step 63.

[0107] Refer to steps 63 to 81, if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range is within the user-set temperature T 设 ℃+a℃<Indoor ambient temperature T 内环 If the preset first temperature threshold T1℃+c℃ is less than the threshold value, then the number of steps the flow divider cone 11 of the vortex tube 1 moves is adjusted by the PID controller, and the air supply pressure of the vortex tube 1 does not need to be adjusted; it can be maintained at its current value. If the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range is not within the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 Within the preset first temperature threshold T1℃+c℃, the air supply pressure of vortex tube 1 is adjusted according to the following situations: if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range exceeds the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 If the preset first temperature threshold (T1℃+c℃) is too high, then the air supply pressure of the vortex tube 1 is slightly increased to increase the cooling capacity and lower the indoor ambient temperature T. 内环 Decrease; if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range exceeds the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 The preset first temperature threshold (T1℃+c℃) is too low, and close to the user-set temperature T. 设 Then, fine-tune the air supply pressure of the vortex tube 1 to reduce the cooling supply and lower the indoor ambient temperature T. 内环 rise.

[0108] In some embodiments, the control method of the air conditioning system described in the present invention further includes, after step S130, a process of determining whether to switch the cooling control logic, that is, a process of determining whether to switch to the cooling control logic of the vortex tube 1 under the cooling logic of the air conditioner.

[0109] The following is combined with Figure 9 The flowchart shown is a schematic diagram of an embodiment of the method of the present invention for determining whether to switch the cooling control logic. The specific process of determining whether to switch the cooling control logic is further explained, including steps S910 to S940.

[0110] Step S910: After controlling the air conditioning system to enter the air conditioning cooling control logic, the air conditioning is controlled to run in cooling mode under the air conditioning cooling control logic.

[0111] Step S920: After controlling the air conditioning system to enter the air conditioning cooling control logic, determine whether the current indoor ambient temperature of the air conditioning system has been reduced to less than or equal to a preset first temperature threshold.

[0112] Step S930: After controlling the air conditioning system to enter the air conditioning cooling control logic, if it is determined that the current indoor ambient temperature of the air conditioning system has been reduced to less than or equal to a preset first temperature threshold, then the air conditioning system is controlled to exit the air conditioning cooling control logic, and then the air conditioning system is controlled to enter the cooling control logic of the vortex tube 1.

[0113] Step S940: After controlling the air conditioning system to enter the air conditioning cooling control logic, if it is determined that the current indoor ambient temperature of the air conditioning system has not decreased to less than or equal to a preset first temperature threshold, then the air conditioning system continues to be controlled to cool under the air conditioning cooling control logic.

[0114] Specifically, such as Figure 12 As shown, the air conditioner's precise temperature control cooling operation process, equipped with vortex tube 1, also includes: In step 5, if the indoor ambient temperature T... 内环 If the preset first temperature threshold T1℃ is reached, it is determined that the cooling system needs to be turned on, and the air conditioning system is controlled to start, specifically by turning on the air conditioner and closing the vortex air supply valve; and during operation, the indoor ambient temperature T is further determined. 内环 Determine whether to use the air conditioner or the vortex tube 1 for cooling, if the indoor ambient temperature is T. 内环 If the temperature is less than or equal to the preset first temperature threshold T1℃, then step 6 is executed, which is to execute the cooling control logic of the vortex tube 1.

[0115] Using the technical solution of this embodiment, for an air conditioning system with an air conditioner and a vortex tube 1, when the user turns on the cooling system and selects the linked cooling mode of the air conditioner and the vortex tube 1, if the indoor ambient temperature is higher than the user's set temperature, it is determined whether to enter the air conditioning cooling control logic or the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and a preset first temperature threshold. If the vortex cooling control logic is entered, the cooling flow ratio of the vortex tube 1 is adjusted using PID control based on the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, based on the indoor ambient temperature and the user's set temperature and the preset first temperature threshold, the cooling flow ratio of the vortex tube 1 is adjusted using PID control. The relationship between the first temperature threshold and the cooling time and pressure adjustment time interval of the vortex tube 1 are considered. The supply pressure of the vortex tube 1 is adjusted or the vortex tube 1 is stopped or switched to the air conditioning cooling control logic. When the air conditioning cooling control logic is entered, the air conditioning cooling control logic is executed or the vortex tube 1 cooling control logic is switched according to the relationship between the indoor ambient temperature and the preset first temperature threshold. Thus, by adopting the linkage cooling mode of air conditioning and vortex tube 1, the vortex tube 1 is used for cooling when the cooling load is small, so that the output of cooling capacity is consistent with the indoor demand, which can improve the user's comfort and is also conducive to energy saving.

[0116] According to an embodiment of the present invention, a control device for an air conditioning system corresponding to a control method for an air conditioning system is also provided. See also Figure 10 The diagram shows a structural schematic of an embodiment of the device of the present invention. The air conditioning system includes an air conditioner and a vortex tube 1; the air conditioning system is capable of implementing a combined cooling mode of the air conditioner and the vortex tube 1; in the combined cooling mode of the air conditioner and the vortex tube 1, the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1 can be run. Specifically, Figure 11 This is a schematic diagram of one embodiment of a vortex tube. Figure 11 The vortex tube 1 shown includes: a body of the vortex tube 1 and a flow divider cone 11; the body of the vortex tube 1 is provided with an air inlet 13, a hot air outlet 12, and a cold air outlet 14. The flow divider cone 11 is disposed on the end of the body of the vortex tube 1 away from the cold air outlet 14. See also... Figure 11 In the example shown, compressed air enters the vortex tube 1 through the nozzle at the inlet 13 along the circumference of the vortex tube 1. Inside the vortex tube 1, it rotates at high speed, generating a vortex effect that separates the airflow into two parts with different temperatures. The outer, high-temperature gas is discharged from the hot gas outlet 12, while the central, low-temperature gas encounters the obstruction of the flow divider cone 11 and is discharged from the cold gas outlet 14. One end of the flow divider cone 11 has a thread. Rotating the flow divider cone 11 along its threaded end allows it to move forward or backward, thereby adjusting the cold flow ratio of the vortex tube 1, i.e., adjusting the flow rate and temperature of the cold gas outlet 14.

[0117] In the solution of the present invention, such as Figure 10As shown, the control device of the air conditioning system includes: an acquisition unit 102 and a control unit 104.

[0118] The acquisition unit 102 is configured to acquire the indoor ambient temperature of the environment where the air conditioning system is located when the air conditioning system is turned on and operating in the combined cooling mode of the air conditioner and the vortex tube 1, and record it as the current indoor ambient temperature of the air conditioning system (e.g., indoor ambient temperature T). 内环 The specific functions and processing of the acquisition unit 102 are described in step S110. Specifically, Figure 12 A schematic diagram of the refrigeration operation process for precise temperature control in an air conditioner equipped with a vortex tube 1. (See diagram below.) Figure 12 As shown, the vortex tube 1 and the air conditioner constitute an air conditioning system. In this system, the vortex tube 1 and the air conditioner work together to form a precisely temperature-controlled refrigeration system. The refrigeration control logic of this system includes two parts: vortex tube 1 refrigeration and air conditioner refrigeration. For example... Figure 12 As shown, the refrigeration operation process of the air conditioner with precise temperature control using vortex tube 1 includes:

[0119] Step 1: Turn on the air conditioning system consisting of the air conditioner and vortex tube 1, and then proceed to Step 2.

[0120] Step 2: Set the air conditioner's cooling temperature, fan speed, and other parameters. Also, set the PID control parameters in the PID control mode, such as the proportional control parameter K. p Integral adjustment parameter K i and differential adjustment parameter K d Then proceed to step 3. For example: based on the room size, number of people, and other heat load factors, and in conjunction with vortex tube 1, determine K. p K i K d Adjustment coefficient. The set cooling temperature of the air conditioner is denoted as the user-set temperature T. 设 .

[0121] Step 3: Activate the linked cooling mode of the air conditioner and vortex tube 1, and detect the indoor ambient temperature T. 内环 Then proceed to step 4. For example: when the air conditioner is turned on at night, if the air conditioner and the vortex tube 1 are activated in linkage cooling mode, the controller will detect the indoor ambient temperature T. 内环 Then proceed to step 4.

[0122] The control unit 104 is configured to determine, based on the current indoor ambient temperature of the air conditioning system, whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1. The specific functions and processing of this control unit 104 are described in step S120.

[0123] In some embodiments, the control unit 104 determines, based on the current indoor ambient temperature of the air conditioning system, whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube 1, including:

[0124] The control unit 104 is further configured to determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold when the current indoor ambient temperature of the air conditioning system is greater than the target ambient temperature of the air conditioning system. The specific functions and processing of the control unit 104 are further described in step S210. The preset first temperature threshold is greater than the target ambient temperature of the air conditioning system. The target ambient temperature of the air conditioning system is the user-set temperature of the environment where the air conditioning system is located; the preset first temperature threshold is, for example, temperature T1.

[0125] The control unit 104 is further configured to determine that the air conditioning system needs to enter the cooling control logic of the vortex tube 1 if the current indoor ambient temperature of the air conditioning system is determined to be less than or equal to a preset first temperature threshold. The specific functions and processing of the control unit 104 are further described in step S220.

[0126] The control unit 104 is further configured to determine that the air conditioning system needs to enter the air conditioning cooling control logic if it is determined that the current indoor ambient temperature of the air conditioning system is greater than a preset first temperature threshold. The specific functions and processing of the control unit 104 are further described in step S230.

[0127] Specifically, such as Figure 12 As shown, the air conditioner's cooling operation process with precise temperature control via vortex tube 1 also includes: Step 4, setting the indoor ambient temperature T... 内环 ≥ User-set temperature T 设 Under these circumstances, determine whether the indoor ambient temperature T is met. 内环 If the temperature is ≤ the preset first temperature threshold T1℃: otherwise, proceed to step 5, which executes the air conditioning cooling control logic; otherwise, proceed to step 6, which executes the vortex tube 1 cooling control logic. Wherein, the preset first temperature threshold T1℃ > the user-set temperature T 设 .

[0128] The control unit 104 is further configured to, if it is determined that the air conditioning system needs to enter the air conditioning's cooling control logic, control the air conditioner to turn on and control the vortex tube 1 to close. Specifically, it controls the air conditioner to turn on and controls the air supply valve of the vortex tube 1 to close, thereby controlling the air conditioning system to enter the air conditioning's cooling control logic. The specific functions and processing of this control unit 104 are further described in step S130. Specifically, as... Figure 12As shown, the air conditioner's precise temperature control cooling operation process, equipped with vortex tube 1, also includes: Step 5, if the indoor ambient temperature T 内环 If the preset first temperature threshold T1℃ is set, it is determined that the cooling system needs to be turned on, and the air conditioning system is controlled to start. Specifically, the air conditioner is turned on, the vortex air supply valve is closed, and the air conditioner starts cooling operation.

[0129] The control unit 104 is further configured to, if it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube 1, control the air conditioner to shut down and control the vortex tube 1 to open. Specifically, it controls the air conditioner to shut down and controls the gas supply valve of the vortex tube 1 to open, and resets the cooling operation time of the vortex tube 1 to zero and then restarts the timing, so as to control the air conditioning system to enter the cooling control logic of the vortex tube 1. The specific functions and processing of this control unit 104 are also described in step S140. The cooling operation time of the vortex tube 1 is the cooling time t1 of the vortex tube 1.

[0130] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, adjust the air supply pressure and cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system and in conjunction with the cooling operation time of the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S150. Specifically, as... Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 6: Turn on the cooling of vortex tube 1. At this time, open the air supply valve of vortex tube 1 to start the cooling of vortex tube 1. If the air conditioner is not turned on or the air conditioner is already turned on, stop the cooling operation to execute the cooling of vortex tube 1. Then, proceed to step 61. Step 61: After entering the cooling phase of vortex tube 1, reset the cooling time t1 of vortex tube 1 to zero and start the timing again. Then, proceed to step 62. After that, start executing step 62 to adjust the air supply pressure of the air supply valve of vortex tube 1.

[0131] This invention provides a method for coordinated temperature control and cooling of an air conditioner and a vortex tube 1. The vortex tube 1 is linked to the air conditioner. When the indoor ambient temperature is high, the air conditioner cools normally. When the indoor ambient temperature drops to a first specific value, the air conditioner shuts off and the vortex tube 1 starts cooling. During the cooling process of the vortex tube 1, the supply pressure of the vortex tube 1 is adjusted, and the advance and retreat of the flow divider cone of the vortex tube 1 is regulated using a PID control method to precisely control the cold air flow and temperature. This achieves precise control of a small cooling capacity supply, bringing the indoor ambient temperature closer to the set temperature and maintaining stability. Through precise temperature control and cooling, the cooling capacity output under specific conditions matches the indoor demand, improving user comfort (such as sleep comfort). Thus, when the cooling load is low, the vortex tube 1 is used for cooling, and the advance and retreat of the flow divider cone of the vortex tube 1 is regulated using a PID control method to precisely control the cooling capacity output and the indoor ambient temperature to the user's set temperature. The vortex tube 1 provides a small but precisely adjustable cooling capacity to meet the cooling load demand after a person falls asleep at night, providing a better air-conditioned environment for the user's sleep.

[0132] In this invention, the supply pressure of the vortex tube 1 is adjusted to make the cooling capacity supply roughly equal to the indoor heat load. Based on the indoor environmental load and the parameters of the vortex tube 1, the parameters of the PID control are determined to precisely control the small cooling capacity supply. During the cooling period of the vortex tube 1, if the heat load increases and causes the indoor ambient temperature to rise to a second specific value, the cooling of the vortex tube 1 is turned off, and the air conditioning cooling is restarted. Thus, the cooling of the vortex tube 1 and the air conditioning cooling are linked, especially when the heat load is low during sleep at night. This allows for precise control of the cooling capacity input into the room, maintaining a comfortable air-conditioned environment and preventing people from waking up from the cold at night. In this way, when people sleep with the air conditioning on at night, they sometimes feel cold or even wake up from the cold. By linking the vortex tube 1, under specific conditions, the air conditioning cooling is stopped, and the vortex tube 1 cooling is turned on. Because the cooling capacity provided by the vortex tube 1 is small and can be continuously and precisely controlled, it can meet the small and precise cooling load requirements under the set air conditioning conditions, assisting in cooling and improving the user's sleep environment.

[0133] In some embodiments, the control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, adjust the air supply pressure and cold flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system and in conjunction with the cooling operation time of the vortex tube 1, including:

[0134] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, use the default supply pressure set in the program as the current supply pressure of the vortex tube 1, use the default cooling flow ratio set in the program as the current cooling flow ratio of the vortex tube 1, and reset and restart the supply pressure adjustment time of the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S310. Specifically, as... Figure 12 As shown, the refrigeration operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: step 62, setting the gas supply pressure of vortex tube 1 to the default pressure, setting the screw cone position of the flow divider cone 11 of vortex tube 1 to the default position, and clearing the pressure adjustment time interval t2 of vortex tube 1 to zero and re-timing, and then executing step 63.

[0135] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, perform PID adjustment on the current cooling flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system under the cooling control logic of the air conditioning system entering the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S320. Specifically, as... Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 63, monitoring the indoor ambient temperature T 内环 Calculate the change in indoor ambient temperature T 内环 With user-set temperature T 设 The difference between them; based on the calculated indoor ambient temperature T 内环 With user-set temperature T 设 The difference between them is used to calculate the number of steps the flow divider cone 11 moves forward and backward through the PID controller with the pre-set adjustment parameters. Based on the calculated number of steps the flow divider cone 11 moves forward and backward, the position of the screw cone of the flow divider cone 11 is adjusted to change the cold flow ratio of the vortex tube 1. Then, step 64 is executed.

[0136] In some embodiments, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, the control unit 104, under the cooling control logic of the air conditioning system entering the vortex tube 1, performs PID adjustment on the current cooling flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system, including:

[0137] The control unit 104 is further configured to determine the difference between the current indoor ambient temperature of the air conditioning system and the target ambient temperature of the air conditioning system, denoted as the current temperature deviation of the air conditioning system; and to determine the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller. The specific functions and processing of this control unit 104 are further described in step S410.

[0138] The control unit 104 is further configured to determine the current number of movement steps of the flow divider cone 11 of the vortex tube 1 based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller. The specific functions and processing of this control unit 104 are further described in step S420.

[0139] The control unit 104 is further configured to control the flow divider cone 11 of the vortex tube 1 to move according to the determined current number of movement steps of the flow divider cone 11 of the vortex tube 1, thereby adjusting the current cold flow ratio of the vortex tube 1 and obtaining a new current cold flow ratio of the vortex tube 1. The specific functions and processing of the control unit 104 are further described in step S430.

[0140] Specifically, such as Figure 12 As shown, the air conditioning system with vortex tube 1 for precise temperature control includes the following cooling operation process: In step 63, when the indoor ambient temperature T... 内环 When the temperature drops to a certain value, the temperature is adjusted by a PID controller. Specifically, the PID controller controls the flow divider cone 11 of the vortex tube 1 to change the cold flow ratio of the vortex tube 1, thereby achieving temperature adjustment.

[0141] In some embodiments, the control unit 104 determines the current number of movement steps of the flow divider cone 11 of the vortex tube 1 based on the current temperature deviation of the air conditioning system and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller, including:

[0142] The control unit 104 is further configured to set a sampling period for the current indoor ambient temperature of the air conditioning system, and to record the difference between the current indoor ambient temperature of the air conditioning system obtained from the nth sampling and the target ambient temperature as the current temperature deviation of the air conditioning system determined in the nth sampling; where n is a positive integer. The specific functions and processing of the control unit 104 are further described in step S510.

[0143] The control unit 104 is further configured to: use the product of the set proportional control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination as the current proportional control opening of the PID controller determined in the nth determination; use the sum of the product of the set integral control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination, and the current integral control opening of the PID controller determined in the (n-1)th determination, as the current integral control opening of the PID controller determined in the nth determination; and use the product of the difference between the current temperature deviation of the air conditioning system determined in the nth determination and the current temperature deviation of the air conditioning system determined in the (n-1)th determination, and the set derivative control coefficient of the PID controller as the current derivative control opening of the PID controller determined in the nth determination. The specific functions and processing of this control unit 104 are further described in step S520.

[0144] The control unit 104 is further configured to use the sum of the current proportional control opening, the current integral control opening, and the current derivative control opening of the PID controller obtained in the nth determination as the current opening of the vortex tube 1 obtained in the nth determination. The specific functions and processing of this control unit 104 are further described in step S530.

[0145] The control unit 104 is further configured to use the difference between the current opening degree of the vortex tube 1 determined in the nth determination and the current opening degree of the vortex tube 1 determined in the (n-1)th determination as the current moving step number of the flow divider cone 11 of the vortex tube 1 determined in the nth determination, so as to control the flow divider cone 11 of the vortex tube 1 to move according to the current moving step number of the flow divider cone 11 of the vortex tube 1 determined in the nth determination, thereby adjusting the current cold flow ratio of the vortex tube 1 and obtaining a new current cold flow ratio of the vortex tube 1. The specific functions and processing of this control unit 104 are also described in step S540.

[0146] Specifically, such as Figure 12 As shown, the refrigeration operation process of the air conditioner with precise temperature control using eddy current tube 1 also includes: In step 63, the specific steps of PID controller adjustment are as follows:

[0147] Definition: Temperature deviation ΔT = Indoor ambient temperature T 内环 ℃ - Target ambient temperature T 设 ℃. Proportional adjustment of OUTPUT(P) opening. n =K p *ΔT n Integral adjustment of opening OUTPUT(I) n=OUTPUT(I) n-1 +K i *ΔT n Differential adjustment of the opening OUTPUT(D) n =K d (ΔT n -ΔT n-1 ).

[0148] The number of steps the flow divider cone 11 moves forward and backward is the number of times the opening U is calculated in the nth calculation. (n) Compared with the previous calculation of the nth time, the opening U (n-1) The difference between them is ΔU(n):

[0149] ΔU(n)=U (n) -U (n-1) =K p *(ΔT n -ΔT n-1 )+K i *ΔT n +Kd(ΔT n -2ΔT n-1 +ΔT n-2 ).

[0150] Where U(n) = OUTPU(X)n, X represents P, I or D; PID control only needs to know the number of steps in this adjustment, that is, it only needs to calculate the difference ΔU(n), and the difference controls the number of steps.

[0151] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, adjust the current cooling flow ratio of the vortex tube 1 using PID control, and then, based on the current indoor ambient temperature of the air conditioning system, and in conjunction with the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1, adjust the current air supply pressure of the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S330. Specifically, as... Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: step 64, adjusting the gas supply pressure of vortex tube 1.

[0152] In some embodiments, after the control unit 104 controls the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, it adjusts the current air supply pressure of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system, combined with the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1, including:

[0153] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, determine whether the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment after performing PID adjustment on the current cooling flow ratio of the vortex tube 1 under the cooling control logic of the air conditioning system entering the vortex tube 1. The specific functions and processing of the control unit 104 are also described in step S610. The first set temperature increment is, for example, temperature c℃.

[0154] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, then, based on the cooling operation time of the vortex tube 1 and the air supply pressure adjustment time of the vortex tube 1, increase the current air supply pressure of the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S620.

[0155] In some embodiments, after the control unit 104 controls the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, and when it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, the control unit 104 adjusts the current supply pressure of the vortex tube 1 by increasing it according to the cooling operation time of the vortex tube 1 and the supply pressure adjustment time of the vortex tube 1, including:

[0156] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, and if it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, determine whether the cooling operation time of the vortex tube 1 is less than or equal to a first set time. The specific functions and processing of this control unit 104 are further described in step S710. The first set time is, for example, time e.

[0157] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1 under the cooling control logic of the vortex tube 1, and after determining that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment, if it is determined that the cooling operation time of the vortex tube 1 is greater than a first set time, then control the air conditioning system to exit the cooling control logic of the vortex tube 1, and then control the air conditioning system to enter the cooling control logic of the air conditioner. Specifically, controlling the air conditioning system to exit the cooling control logic of the vortex tube 1 and then controlling the air conditioning system to enter the cooling control logic of the air conditioner includes: first, under the cooling control logic of the vortex tube 1, adjusting the air supply pressure and cooling flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system and in combination with the cooling operation time of the vortex tube 1; and then controlling the vortex tube 1 to close and the air conditioner to turn on after the cooling operation time of the vortex tube 1 is greater than the first set time. It should be noted that during the PID controller adjustment period of the vortex tube 1 cooling process, at the indoor ambient temperature T... 内环 Temperatures outside the above range (i.e., the user-set temperature T) 设 ℃+a℃<Indoor ambient temperature T 内环 After the preset first temperature threshold T1℃+c℃ is reached, in order to maintain the stability of the entire air conditioning system, the air conditioning cooling will not be turned on immediately. Instead, the supply pressure of the vortex tube 1 and the PID controller will be adjusted to move the flow divider cone 11 for a period of time before the air conditioning cooling is switched on. For the specific functions and processing of the control unit 104, please refer to step S720.

[0158] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, determine whether the pressure regulation time interval of the air conditioning system is greater than or equal to a second set time if the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment. The specific functions and processing of this control unit 104 are further described in step S730.

[0159] The control unit 104 is further configured to, if so, increase the outlet pressure of the gas storage tank of the vortex tube 1 to increase the current supply pressure of the vortex tube 1, then return to its original position, and reset the supply pressure adjustment time of the vortex tube 1 to zero and restart the timing. The specific functions and processing of this control unit 104 are further described in step S740.

[0160] The control unit 104 is further configured to, otherwise, return to the previous state, so that after the air conditioning system re-enters the cooling control logic of the vortex tube 1, under the cooling control logic of the vortex tube 1, the current cooling flow ratio of the vortex tube 1 is adjusted by PID according to the current indoor ambient temperature of the air conditioning system. The specific functions and processing of this control unit 104 are further described in step S750.

[0161] Specifically, such as Figure 12 As shown, the refrigeration operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: Step 7, determining whether the refrigeration time t1 of vortex tube 1 is less than or equal to time e: if so, proceed to step 71; otherwise, proceed to step 5.

[0162] Step 71: Determine whether the pressure adjustment time interval t2 of vortex tube 1 is greater than or equal to d. If so, increase the outlet pressure of the pressure reducing valve of the gas storage tank of vortex tube 1, and then return to step 61; otherwise, return to step 63.

[0163] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of the preset target ambient temperature and the second set temperature increment, but greater than the preset target ambient temperature, then adjust the current air supply pressure of the vortex tube 1 to decrease according to the current indoor ambient temperature of the air conditioning system. The specific functions and processing of this control unit 104 are further described in step S630.

[0164] Specifically, such as Figure 12 As shown, the cooling operation process of the air conditioner equipped with vortex tube 1 for precise temperature control also includes: in step 64, determining whether the indoor ambient temperature T is met. 内环 If the temperature is ≥ the preset first temperature threshold T1℃+c℃, then proceed to step 7 to increase the air supply pressure of the vortex tube 1; otherwise, if the indoor ambient temperature is ≤ the preset target ambient temperature T_set+a℃ but greater than the preset target ambient temperature T_set, proceed to step 8 to decrease the air supply pressure of the vortex tube 1.

[0165] In some embodiments, after the control unit 104 controls the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, and when it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of a preset first temperature threshold and a first set temperature increment, the control unit 104 adjusts the current air supply pressure of the vortex tube 1 to decrease according to the current indoor ambient temperature of the air conditioning system, including:

[0166] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, under the cooling control logic of the air conditioning system entering the vortex tube 1, after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, and if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of a preset first temperature threshold and a first set temperature increment, determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of a preset target ambient temperature and a second set temperature increment. The specific functions and processing of this control unit 104 are further described in step S810. The second set temperature increment is, for example, temperature a℃.

[0167] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1 under the cooling control logic of the air conditioning system entering the vortex tube 1, if it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of a preset first temperature threshold and a first set temperature increment, and if it is determined that the current indoor ambient temperature of the air conditioning system is greater than the sum of a preset target ambient temperature and a second set temperature increment, then return to the previous state, so as to re-adjust the current cooling flow ratio of the vortex tube 1 according to the current indoor ambient temperature of the air conditioning system under the cooling control logic of the vortex tube 1 after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1. The specific functions and processing of this control unit 104 are also described in step S820.

[0168] The control unit 104 is further configured to, after controlling the air conditioning system to enter the cooling control logic of the vortex tube 1, and after performing PID adjustment on the current cooling flow ratio of the vortex tube 1, determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to the target ambient temperature of the air conditioning system if the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset first temperature threshold and the first set temperature increment. The specific functions and processing of this control unit 104 are further described in step S830.

[0169] The control unit 104 is further configured to, if so, control the eddy current tube 1 to stop and the entire air conditioning system to stop, and then return to determine, based on the current indoor ambient temperature of the air conditioning system, whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the eddy current tube 1. The specific functions and processing of this control unit 104 are further described in step S840.

[0170] Specifically, the control unit 104 is further configured to, otherwise, reduce the outlet pressure of the gas tank of the vortex tube 1 to decrease the current supply pressure of the vortex tube 1, and then return to the previous state. After the air conditioning system re-enters the cooling control logic of the vortex tube 1, under the cooling control logic of the vortex tube 1, if the current indoor ambient temperature of the air conditioning system has decreased to less than the sum of the preset target ambient temperature and the second set temperature, but greater than the preset target ambient temperature, the control unit 104 performs PID adjustment on the current cooling flow ratio of the vortex tube 1 based on the current indoor ambient temperature of the air conditioning system. The specific functions and processing of this control unit 104 are further described in step S850.

[0171] Specifically, such as Figure 12 As shown, the air conditioner's cooling operation process with precise temperature control via vortex tube 1 also includes: Step 8, determining whether the indoor ambient temperature T is met. 内环 ≤User-set temperature T 设 ℃+a℃: If yes, proceed to step 81; otherwise, return to step 63.

[0172] Step 81: Determine if the indoor ambient temperature T is met. 内环 ≤User-set temperature T 设 If yes, then control the vortex tube 1 to stop, and then return to step 4 for cyclic control; otherwise, lower the outlet pressure of the pressure reducing valve of the gas storage tank of vortex tube 1, and then return to step 63.

[0173] Refer to steps 63 to 81, if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range is within the user-set temperature T 设 ℃+a℃<Indoor ambient temperature T 内环 If the preset first temperature threshold T1℃+c℃ is less than the threshold value, then the number of steps the flow divider cone 11 of the vortex tube 1 moves is adjusted by the PID controller, and the air supply pressure of the vortex tube 1 does not need to be adjusted; it can be maintained at its current value. If the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range is not within the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 Within the preset first temperature threshold T1℃+c℃, the air supply pressure of vortex tube 1 is adjusted according to the following situations: if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range exceeds the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 If the preset first temperature threshold (T1℃+c℃) is too high, then the air supply pressure of the vortex tube 1 is slightly increased to increase the cooling capacity and lower the indoor ambient temperature T. 内环 Decrease; if the indoor ambient temperature T 内环 After stabilization, the indoor ambient temperature T 内环 The range exceeds the above temperature range (i.e., the user-set temperature T). 设 ℃+a℃<Indoor ambient temperature T 内环 The preset first temperature threshold (T1℃+c℃) is too low, and close to the user-set temperature T. 设 Then, fine-tune the air supply pressure of the vortex tube 1 to reduce the cooling supply and lower the indoor ambient temperature T. 内环 rise.

[0174] In some embodiments, the control method for the air conditioning system described in the present invention is characterized by further comprising: a process of determining whether to switch the cooling control logic, that is, a process of determining whether to switch to the cooling control logic of the vortex tube 1 under the cooling logic of the air conditioner.

[0175] The control unit 104 is further configured to, after controlling the air conditioning system to enter the air conditioning cooling control logic, control the air conditioning to operate in cooling mode under the air conditioning cooling control logic. The specific functions and processing of the control unit 104 are further described in step S910.

[0176] The control unit 104 is further configured to, after controlling the air conditioning system to enter the air conditioning cooling control logic, determine whether the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to a preset first temperature threshold. The specific functions and processing of the control unit 104 are further described in step S920.

[0177] The control unit 104 is further configured to, after controlling the air conditioning system to enter the air conditioning cooling control logic, if it is determined that the current indoor ambient temperature of the air conditioning system has decreased to less than or equal to a preset first temperature threshold, then control the air conditioning system to exit the air conditioning cooling control logic, and then control the air conditioning system to enter the cooling control logic of the vortex tube 1. The specific functions and processing of this control unit 104 are further described in step S930.

[0178] The control unit 104 is further configured to, after controlling the air conditioning system to enter the air conditioning cooling control logic, if it is determined that the current indoor ambient temperature of the air conditioning system has not decreased to less than or equal to a preset first temperature threshold, continue to control the air conditioning to cool under the air conditioning cooling control logic. The specific functions and processing of this control unit 104 are further described in step S940.

[0179] Specifically, such as Figure 12 As shown, the air conditioner's precise temperature control cooling operation process, equipped with vortex tube 1, also includes: In step 5, if the indoor ambient temperature T... 内环 If the preset first temperature threshold T1℃ is reached, it is determined that the cooling system needs to be turned on, and the air conditioning system is controlled to start, specifically by turning on the air conditioner and closing the vortex air supply valve; and during operation, the indoor ambient temperature T is further determined. 内环 Determine whether to use the air conditioner or the vortex tube 1 for cooling, if the indoor ambient temperature is T. 内环 If the temperature is less than or equal to the preset first temperature threshold T1℃, then step 6 is executed, which is to execute the cooling control logic of the vortex tube 1.

[0180] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0181] Using the technical solution of this invention, for an air conditioning system with an air conditioner and a vortex tube 1, when the user turns on the air conditioning and selects the linked cooling mode of the air conditioner and the vortex tube 1, if the indoor ambient temperature is higher than the user's set temperature, it is determined whether to enter the air conditioning cooling control logic or the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and a preset first temperature threshold. If the vortex cooling control logic is entered, the cooling flow ratio of the vortex tube 1 is adjusted using PID control based on the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, based on the relationship between the indoor ambient temperature and the user's set temperature and the preset first temperature threshold, and... By combining the cooling time of vortex tube 1 and the pressure adjustment time interval of vortex tube 1, the gas supply pressure of vortex tube 1 is adjusted or vortex tube 1 is stopped or switched to air conditioning cooling control logic. When the air conditioning cooling control logic is entered, the air conditioning cooling control logic is executed or switched to vortex tube 1 cooling control logic according to the relationship between the indoor ambient temperature and the preset first temperature threshold. By associating with vortex tube 1, the air conditioning cooling is stopped when the outdoor ambient temperature is low at night, and the vortex tube 1 cooling is turned on. Since the cooling capacity provided by vortex tube 1 is small and can be continuously and accurately controlled, it can meet the small and accurate cooling load requirements under the set air conditioning conditions, assist in cooling, and make the user's sleep environment better.

[0182] According to an embodiment of the present invention, an air conditioning system corresponding to a control device for an air conditioning system is also provided. This air conditioning system may include the control device for the air conditioning system described above.

[0183] Since the processing and functions implemented by the air conditioning system in this embodiment are basically the same as those of the aforementioned device embodiments, principles and examples, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0184] By employing the technical solution of this invention, for an air conditioning system with an air conditioner and a vortex tube 1, when the user turns on the air conditioning and selects the linkage cooling mode of the air conditioner and the vortex tube 1, if the indoor ambient temperature is higher than the user's set temperature, the system determines whether to enter the air conditioning cooling control logic or the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and a preset first temperature threshold. If the vortex cooling control logic is entered, the cold flow ratio of the vortex tube 1 is adjusted using PID control based on the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, based on the relationship between the indoor ambient temperature and the user's set temperature and the preset first temperature threshold, and combined with the cooling time of the vortex tube 1 and the pressure adjustment time interval of the vortex tube 1, the system adjusts the air supply pressure of the vortex tube 1 or controls the vortex tube 1 to stop or switch to the air conditioning cooling control logic. If the air conditioning cooling control logic is entered, the system executes the air conditioning cooling control logic or switches to the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and the preset first temperature threshold, precisely controlling the cold air flow and temperature to achieve precise control of the small cooling capacity supply, making the indoor ambient temperature approach the set temperature and maintain stability.

[0185] According to an embodiment of the present invention, a storage medium corresponding to a control method for an air conditioning system is also provided. The storage medium includes a stored program, wherein the program controls the device where the storage medium is located to execute the control method for the air conditioning system described above when it is executed.

[0186] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0187] By employing the technical solution of this invention, for an air conditioning system with an air conditioner and a vortex tube 1, when the user turns on the air conditioning and selects the linkage cooling mode of the air conditioner and the vortex tube 1, if the indoor ambient temperature is higher than the user's set temperature, the system determines whether to enter the air conditioning cooling control logic or the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and a preset first temperature threshold. If the vortex cooling control logic is entered, the cold flow ratio of the vortex tube 1 is adjusted using PID control based on the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, based on the relationship between the indoor ambient temperature and the user's set temperature and the preset first temperature threshold, and combined with the cooling time of the vortex tube 1 and the pressure adjustment time interval of the vortex tube 1, the system adjusts the gas supply pressure of the vortex tube 1 or controls the vortex tube 1 to stop or switch to the air conditioning cooling control logic. If the air conditioning cooling control logic is entered, the system executes the air conditioning cooling control logic or switches to the vortex tube 1 cooling control logic based on the relationship between the indoor ambient temperature and the preset first temperature threshold. This allows for precise control of the cooling output and the indoor ambient temperature to the user's set temperature, meeting the cooling load requirements after a person falls asleep at night and providing a better air conditioning environment for the user's sleep.

[0188] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0189] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control method for an air conditioning system, characterized in that, The air conditioning system includes an air conditioner and a vortex tube (1); the air conditioning system is capable of achieving a combined cooling mode of the air conditioner and the vortex tube (1); the control method of the air conditioning system includes: When the air conditioning system is turned on for cooling and is operating in the combined cooling mode of the air conditioner and the vortex tube (1), the indoor ambient temperature of the environment where the air conditioning system is located is obtained and recorded as the current indoor ambient temperature of the air conditioning system. Based on the current indoor ambient temperature of the air conditioning system, determine whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube (1); when the indoor ambient temperature is greater than the user-set temperature, determine whether to enter the air conditioning cooling control logic or the vortex tube cooling control logic based on the relationship between the indoor ambient temperature and the preset first temperature threshold. If it is determined that the air conditioning system needs to enter the air conditioning cooling control logic, then the air conditioning is turned on and the vortex tube (1) is turned off, so as to control the air conditioning system to enter the air conditioning cooling control logic; when entering the air conditioning cooling control logic, the air conditioning cooling control logic is executed or switched to the vortex tube cooling control logic according to the relationship between the indoor ambient temperature and the preset first temperature threshold. If it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube (1), then the air conditioner is controlled to shut down and the vortex tube (1) is controlled to open, and the cooling operation time of the vortex tube (1) is reset to zero and then restarted, so as to control the air conditioning system to enter the cooling control logic of the vortex tube (1); and, When the air conditioning system enters the cooling control logic of the vortex tube (1), the air supply pressure and cold flow ratio of the vortex tube (1) are adjusted according to the current indoor ambient temperature of the air conditioning system and the cooling operation time of the vortex tube (1). When the vortex cooling control logic is entered, the cold flow ratio of the vortex tube is PID adjusted according to the difference between the indoor ambient temperature and the preset first temperature threshold. Furthermore, according to the relationship between the indoor ambient temperature and the user-set temperature and the preset first temperature threshold, and in combination with the cooling time of the vortex tube and the pressure adjustment time interval of the vortex tube, the air supply pressure of the vortex tube is adjusted or the vortex tube is stopped or switched to the air conditioning cooling control logic.

2. The control method for the air conditioning system according to claim 1, characterized in that, in, Based on the current indoor ambient temperature of the air conditioning system, determine whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube (1), including: If the current indoor ambient temperature of the air conditioning system is greater than the target ambient temperature of the air conditioning system, determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to a preset first temperature threshold. If it is determined that the current indoor ambient temperature of the air conditioning system is less than or equal to the preset first temperature threshold, then it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube (1). If it is determined that the current indoor ambient temperature of the air conditioning system is greater than a preset first temperature threshold, then it is determined that the air conditioning system needs to enter the air conditioning cooling control logic. And / or, Based on the current indoor ambient temperature of the air conditioning system and in conjunction with the cooling operation time of the vortex tube (1), the gas supply pressure and cold flow ratio of the vortex tube (1) are adjusted, including: The default air supply pressure set by the program is used as the current air supply pressure of the vortex tube (1), the default cold flow ratio set by the program is used as the current cold flow ratio of the vortex tube (1), and the air supply pressure adjustment time of the vortex tube (1) is cleared and the timing is reset. Based on the current indoor ambient temperature of the air conditioning system, the current cold flow ratio of the vortex tube (1) is adjusted by PID. Based on the current indoor ambient temperature of the air conditioning system, and in combination with the cooling operation time of the vortex tube (1) and the gas supply pressure adjustment time of the vortex tube (1), the current gas supply pressure of the vortex tube (1) is adjusted.

3. The control method for the air conditioning system according to claim 2, characterized in that, Based on the current indoor ambient temperature of the air conditioning system, the current cold flow ratio of the vortex tube (1) is adjusted using PID control, including: The difference between the current indoor ambient temperature of the air conditioning system and the target ambient temperature of the air conditioning system is determined and recorded as the current temperature deviation of the air conditioning system; and the set proportional control coefficient, set integral control coefficient and set derivative control coefficient of the PID controller are determined. Based on the current temperature deviation of the air conditioning system, and the set proportional control coefficient, set integral control coefficient and set derivative control coefficient of the PID controller, the current number of movement steps of the vortex tube (1) split cone (11) is determined. Control the flow divider cone (11) of the vortex tube (1) to move according to the current number of movement steps of the flow divider cone (11) of the vortex tube (1) to adjust the current cold flow ratio of the vortex tube (1) and obtain a new current cold flow ratio of the vortex tube (1).

4. The control method for the air conditioning system according to claim 3, characterized in that, Based on the current temperature deviation of the air conditioning system, and the set proportional control coefficient, set integral control coefficient, and set derivative control coefficient of the PID controller, the current number of movement steps of the flow divider cone (11) of the vortex tube (1) is determined, including: A sampling period is set for the current indoor ambient temperature of the air conditioning system. The difference between the current indoor ambient temperature of the air conditioning system obtained from the nth sampling and the target ambient temperature is recorded as the current temperature deviation of the air conditioning system determined in the nth sampling; where n is a positive integer. The product of the set proportional control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination is taken as the current proportional control opening of the PID controller determined in the nth determination; the sum of the product of the set integral control coefficient of the PID controller and the current temperature deviation of the air conditioning system determined in the nth determination, and the current integral control opening of the PID controller determined in the (n-1)th determination, is taken as the current integral control opening of the PID controller determined in the nth determination; and the product of the difference between the current temperature deviation of the air conditioning system determined in the nth determination and the current temperature deviation of the air conditioning system determined in the (n-1)th determination, and the set derivative control coefficient of the PID controller is taken as the current derivative control opening of the PID controller determined in the nth determination. The sum of the current proportional control opening, the current integral control opening, and the current derivative control opening of the PID controller obtained in the nth determination is taken as the current opening of the vortex tube (1) obtained in the nth determination. The difference between the current opening degree of the vortex tube (1) determined in the nth determination and the current opening degree of the vortex tube (1) determined in the (n-1)th determination is used as the current moving step number of the flow divider cone (11) of the vortex tube (1) determined in the nth determination, so as to control the flow divider cone (11) of the vortex tube (1) to move according to the current moving step number of the flow divider cone (11) of the vortex tube (1) determined in the nth determination, thereby realizing the adjustment of the current cold flow ratio of the vortex tube (1) and obtaining a new current cold flow ratio of the vortex tube (1).

5. The control method for an air conditioning system according to any one of claims 2 to 4, characterized in that, Based on the current indoor ambient temperature of the air conditioning system, and in conjunction with the cooling operation time of the vortex tube (1) and the gas supply pressure adjustment time of the vortex tube (1), the current gas supply pressure of the vortex tube (1) is adjusted, including: Determine whether the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of a preset first temperature threshold and a first set temperature increment; If it is determined that the current indoor ambient temperature of the air conditioning system is greater than or equal to the sum of the preset first temperature threshold and the first set temperature increment, then the current supply pressure of the vortex tube (1) is increased according to the cooling operation time of the vortex tube (1) and the supply pressure adjustment time of the vortex tube (1). If it is determined that the current indoor ambient temperature of the air conditioning system is less than the sum of the preset target ambient temperature and the second set temperature increment, and greater than the preset target ambient temperature, then the current air supply pressure of the vortex tube (1) is reduced according to the current indoor ambient temperature of the air conditioning system.

6. The control method for an air conditioning system according to claim 5, characterized in that, in, Based on the cooling operation time of the vortex tube (1) and the gas supply pressure adjustment time of the vortex tube (1), the current gas supply pressure of the vortex tube (1) is increased, including: Determine whether the cooling operation time of the vortex tube (1) is less than or equal to the first set time; If it is determined that the cooling operation time of the vortex tube (1) is greater than the first set time, then the air conditioning system is controlled to exit the cooling control logic of the vortex tube (1), and then the air conditioning system is controlled to enter the cooling control logic of the air conditioner; wherein, controlling the air conditioning system to exit the cooling control logic of the vortex tube (1) and then controlling the air conditioning system to enter the cooling control logic of the air conditioner includes: firstly, under the cooling control logic of the vortex tube (1), according to the current indoor ambient temperature of the air conditioning system and combined with the cooling operation time of the vortex tube (1), adjusting the gas supply pressure and cold flow ratio of the vortex tube (1), and controlling the vortex tube (1) to close and the air conditioner to turn on after the cooling operation time of the vortex tube (1) is greater than the first set time; If the cooling operation time of the vortex tube (1) is determined to be less than or equal to the first set time, then it is determined whether the pressure regulation time interval of the air conditioning system is greater than or equal to the second set time. If so, the outlet pressure of the gas storage tank of the vortex tube (1) is increased to increase the current gas supply pressure of the vortex tube (1), then it returns, and the gas supply pressure adjustment time of the vortex tube (1) is reset to zero and the timing is restarted. Otherwise, return to the previous state to re-adjust the current cold flow ratio of the vortex tube (1) according to the current indoor ambient temperature of the air conditioning system using PID control. And / or, Adjusting the current air supply pressure of the vortex tube (1) to decrease based on the current indoor ambient temperature of the air conditioning system includes: Determine whether the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset target ambient temperature and the second set temperature increment; If it is determined that the current indoor ambient temperature of the air conditioning system is greater than the sum of the preset target ambient temperature and the second set temperature increment, then return to the previous state to re-adjust the current cold flow ratio of the vortex tube (1) according to the current indoor ambient temperature of the air conditioning system. If it is determined that the current indoor ambient temperature of the air conditioning system is less than or equal to the sum of the preset target ambient temperature and the second set temperature increment, then it is determined whether the current indoor ambient temperature of the air conditioning system is less than or equal to the target ambient temperature of the air conditioning system: If so, then control the vortex tube (1) to stop and the entire air conditioning system to stop; Otherwise, the outlet pressure of the gas tank of the vortex tube (1) is reduced to decrease the current supply pressure of the vortex tube (1), and then the process is repeated to adjust the current cold flow ratio of the vortex tube (1) according to the current indoor ambient temperature of the air conditioning system.

7. The control method for an air conditioning system according to any one of claims 1 to 6, characterized in that, Also includes: Under the refrigeration control logic of the air conditioner, the air conditioner is controlled to operate in a cooling manner; Determine whether the current indoor ambient temperature of the air conditioning system has been reduced to less than or equal to a preset first temperature threshold. If it is determined that the current indoor ambient temperature of the air conditioning system has been reduced to less than or equal to the preset first temperature threshold, then the air conditioning system is controlled to exit the cooling control logic of the air conditioner, and then the air conditioning system is controlled to enter the cooling control logic of the vortex tube (1). If it is determined that the current indoor ambient temperature of the air conditioning system has not decreased to less than or equal to a preset first temperature threshold, then the air conditioning system will continue to operate in cooling mode.

8. A control device for an air conditioning system that uses the control method of any one of claims 1 to 7 to achieve control of the air conditioning system, characterized in that, The air conditioning system includes an air conditioner and a vortex tube (1); the air conditioning system is capable of achieving a combined cooling mode of the air conditioner and the vortex tube (1); the control device of the air conditioning system includes: The acquisition unit is configured to acquire the indoor ambient temperature of the environment where the air conditioning system is located when the air conditioning system is turned on and is running in the combined cooling mode of the air conditioner and the vortex tube (1), and record it as the current indoor ambient temperature of the air conditioning system. The control unit is configured to determine, based on the current indoor ambient temperature of the air conditioning system, whether the air conditioning system needs to enter the cooling control logic of the air conditioner or the cooling control logic of the vortex tube (1). The control unit is further configured to, if it is determined that the air conditioning system needs to enter the cooling control logic of the air conditioner, control the air conditioner to turn on and control the eddy tube (1) to turn off, so as to control the air conditioning system to enter the cooling control logic of the air conditioner. The control unit is further configured to, if it is determined that the air conditioning system needs to enter the cooling control logic of the vortex tube (1), control the air conditioner to shut down and control the vortex tube (1) to open, and reset the cooling operation time of the vortex tube (1) to zero and then restart the timing, so as to control the air conditioning system to enter the cooling control logic of the vortex tube (1); and, The control unit is also configured to adjust the gas supply pressure and cold flow ratio of the vortex tube (1) according to the current indoor ambient temperature of the air conditioning system and the cooling operation time of the vortex tube (1) under the cooling control logic of the air conditioning system entering the vortex tube (1).

9. An air conditioning system, characterized in that, include: The control device for the air conditioning system as described in claim 8.

10. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, the device containing the storage medium is controlled to perform the control method of the air conditioning system according to any one of claims 1 to 7.

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