Method for controlling sterilization and air conditioning system

Abstract

The application provides a sterilization control method and an air conditioning system, which comprises the following steps: receiving a sterilization starting signal, and entering a preparation stage; recording current air conditioning system operation parameters and operation modes, and entering a sterilization mode and a sterilization timing program when the air conditioning system is in a shutdown state; entering a sterilization countdown when the current operation mode of the air conditioning system is a non-shutdown state, adjusting the operation mode of the air conditioning system to a supply mode, then entering a shutdown mode, and then entering the sterilization mode; after entering the sterilization mode, a sterilization module performs a charging process, and after the charging process is completed, a pulse sterilization function is performed; after the sterilization mode ends, the sterilization mode is exited and a sterilization cooling mode is entered. Pulse sterilization can achieve good sterilization effect in a short time. A sterilization indicator light and / or a prompt sound are used to remind a user that sterilization will be performed, so that the user can clearly perceive the sterilization mode. After the sterilization mode ends, the sterilization cooling mode is set, so that the pulse light can work normally and have a long service life.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to a sterilization control method and an air conditioning system. Background Technology

[0002] As people's demands for healthier home appliances continue to increase, sterilization functions have become a major selling point for home appliances. Currently, the commonly used sterilization modules in air conditioning systems are mainly ultraviolet sterilization, positive and negative ion sterilization, etc. The traditional sterilization modes in existing technologies have long sterilization times, the sterilization process is not visible, the sterilization logic is relatively simple, the sterilization effect is not obvious, and they cannot activate intelligent sterilization according to the air conditioner's operating conditions. Users cannot perceive that the sterilization operation has been performed, resulting in a poor user experience. Summary of the Invention

[0003] In view of this, the present invention aims to propose a sterilization control method and an air conditioning system to solve the problems of poor sterilization effect and inability of users to perceive sterilization operation in the prior art.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A sterilization and control method, comprising:

[0006] Upon receiving the sterilization activation signal, the air conditioning system enters the preparation phase.

[0007] Record the current operating parameters and operating mode of the air conditioning system. When the air conditioning system is currently off, enter the sterilization mode and sterilization timer T2 program; when the air conditioning system is currently in the non-off state, enter the sterilization countdown, adjust the air conditioning system operating mode to the current speed air supply mode and then enter the off mode, and after shutting down the air conditioning system load, enter the sterilization mode.

[0008] After entering the sterilization mode, the sterilization module performs a charging process, and after the charging process is completed, it performs a pulse sterilization function.

[0009] The sterilization mode has ended. Exit the sterilization mode and enter the sterilization cooling mode.

[0010] Employing pulse sterilization, it achieves effective sterilization in a short time. While the air conditioner is off and sterilization is in progress, a constantly lit sterilization indicator light and / or an audible alert remind the user that sterilization is about to begin, ensuring clear awareness of the sterilization process. After sterilization, a cooling mode is activated to prevent the pulse lamps from overheating due to frequent activation or prolonged operation, thus ensuring their continued normal operation and lifespan. Depending on the air conditioner's operating mode, it is first switched to fan mode before entering the off and sterilization modes, allowing bacteria to fully penetrate the air conditioner and reducing internal humidity, thereby enhancing the sterilization effect. Furthermore, the sterilization countdown and the sterilization timer program further remind the user of the sterilization process, preventing interruptions caused by frequent switching on or off of cooling or heating due to unpredictable sterilization time. This maximizes sterilization efficiency while minimizing impact on indoor comfort.

[0011] Furthermore, when the air conditioning system is currently operating in the air supply mode, it enters the air supply mode sterilization countdown T1b, reduces the fan speed and closes the air guide plate, and after the first delay time, it enters the shutdown mode.

[0012] When the air conditioning system is in cooling mode, the cooling mode sterilization countdown T1c begins. The air conditioning system operation mode is adjusted to the current speed air supply mode and continues for the second delay time. Then, the fan speed is reduced and the air guide plate is closed. After the first delay time, the system enters the shutdown mode.

[0013] When the air conditioning system is in heating mode, a sterilization countdown (T1d) begins. The system then adjusts to the current fan speed for a second delay, reduces the fan speed, and closes the air deflector for the first delay before entering shutdown mode. This sterilization countdown reminds the user that the interruption to the current operating mode is temporary and will resume after sterilization is complete.

[0014] Furthermore, when entering the shutdown mode, the air conditioning system load is turned off, and after a first preset time t1, the sterilization mode is entered.

[0015] Furthermore, the sterilization countdown T1b in the air supply mode is the sum of the first delay time and the first preset time; the sterilization countdown T1c in the cooling mode is the sum of the second delay time, the first delay time, and the first preset time; and the sterilization countdown T1d in the heating mode is the sum of the second delay time, the first delay time, and the first preset time.

[0016] Furthermore, the sterilization time T2 is the sum of the charging time and the pulse flashing lamp sterilization time.

[0017] Furthermore, during the charging process after entering sterilization mode, the air conditioning system stops receiving control signals and activates the power supply to the sterilization module. This cessation of control signal reception prevents control signals from interfering with the charging operation of the sterilization module, improving sterilization efficiency and the subsequent operational safety of the air conditioning system.

[0018] Furthermore, activating the power supply to the sterilization module involves activating the high-pressure xenon pulse lamp control module, which continues for a third preset time t3. This charges the capacitors in the sterilization module, facilitating subsequent sterilization operations.

[0019] Furthermore, the pulse sterilization function includes: opening the enable port, and outputting a high-level pulse for a required excitation time of seconds at first set intervals through the control port, outputting a specific number of n pulses in total, and then closing the enable port to complete the sterilization process.

[0020] Furthermore, the sterilization and cooling mode disables the sterilization mode within the fifth preset time t5. During this time, the pulse sterilization mode will not be activated again to avoid the pulse lamps being unable to dissipate heat in time due to frequent activation or prolonged operation, thus ensuring the pulse lamps' continued normal operation and lifespan.

[0021] Compared with existing technologies, the sterilization control method of the present invention has the following advantages:

[0022] The sterilization control method of this invention employs a high-pressure xenon pulse lamp, which combines the dual effects of ultraviolet radiation and photothermal activity. Combined with intelligent control, it achieves effective sterilization quickly after activating the sterilization mode. Simultaneously, when the air conditioner is off and sterilization is in progress, a constantly lit sterilization indicator light and / or an audible alert remind the user that sterilization is about to begin. This not only achieves good sterilization results but also enhances user awareness. Furthermore, the rapid, short-duration sterilization via the pulse lamp shortens the sterilization time, preventing prolonged off-load conditions from affecting indoor user comfort. After the sterilization mode ends, a sterilization cooling mode is set to prevent the pulse lamp from failing to dissipate heat due to frequent activation or prolonged operation, ensuring the lamp's continued normal operation and lifespan. Moreover, the sterilization countdown and the sterilization timer program set after entering sterilization mode further remind the user of the sterilization operation, preventing interruptions caused by frequent activation of cooling or heating due to unpredictable sterilization time. This maximizes sterilization efficiency while minimizing the impact on indoor comfort.

[0023] Depending on the air conditioner's operating mode, first adjust the air conditioner to the fan mode before executing the shutdown mode and sterilization mode. This allows bacteria to fully enter the air conditioner's interior, reduces internal humidity, and increases the sterilization effect.

[0024] The present invention also provides an air conditioning system including the sterilization control method described above. The air conditioning system includes a sterilization module and a control module, wherein the sterilization module is configured as a high-pressure xenon pulse lamp, and the control module is used to control the high-pressure xenon pulse lamp.

[0025] The air conditioning system and the sterilization control method described above have the same advantages over the prior art, and will not be repeated here. Attached Figure Description

[0026] Figure 1 This is a flowchart of the sterilization control method described in Embodiment 1 of the present invention;

[0027] Figure 2 This is a flowchart illustrating the specific steps of the sterilization and control method described in Embodiment 1 of the present invention.

[0028] Figure 3 This is a flowchart of the sterilization control method described in Embodiment 2 of the present invention;

[0029] Figure 4 This is a flowchart illustrating the specific steps of the sterilization control method described in Embodiment 2 of the present invention. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1-2 As shown, a sterilization control method includes:

[0033] S1. Upon receiving the sterilization activation signal, the air conditioning system enters the preparation phase.

[0034] The sterilization activation signal received by the air conditioning system can be input by the user, or it can be automatically issued by the air conditioning system's bacterial detection device after detecting that the indoor bacterial concentration exceeds the preset value.

[0035] When the air conditioner receives the sterilization activation signal, it needs to adjust the air conditioning system to the most suitable operating state for sterilization to avoid affecting the sterilization effect due to the operation of the air conditioner. Therefore, in the preparation stage, the air conditioning system needs to make different preparations according to the current operating mode to adjust the air conditioning system to the most suitable sterilization state with low load or zero load.

[0036] S2. Record the current operating parameters and operating mode of the air conditioning system, and determine the current operating mode;

[0037] S2a. When the air conditioning system is currently off, immediately enter the sterilization mode;

[0038] When the air conditioning system is currently off, it has no other excess load and will not affect the normal operation of the sterilization mode. Therefore, the air conditioning system can be controlled to immediately enter the sterilization mode. Specifically, when the air conditioning system is currently off, it will issue a prompt to enter the sterilization mode, alerting the user to the start of the sterilization process, allowing the user to clearly perceive the sterilization process. Furthermore, the entry into sterilization mode is indicated by a constantly lit sterilization indicator light and / or an audible prompt during the sterilization process.

[0039] When the air conditioning system is not turned off, adjust the operating mode of the air conditioning system to the current fan speed mode and then enter the shutdown mode, as follows:

[0040] S2b: When the current operating mode of the air conditioning system is the air supply mode, reduce the fan speed and close the air guide plate. After the first delay time, enter the shutdown mode.

[0041] When the air conditioning system is in ventilation mode, the indoor fan speed needs to be reduced and the air deflector closed for a first delay time to allow bacteria in the indoor air to fully enter the air conditioner before entering shutdown mode. Furthermore, upon entering shutdown mode, the air conditioning system load is shut down, the system displays a warning that it is about to enter sterilization mode, and enters sterilization mode after a first preset time t1. The air conditioning system load includes electric heating, the swing motor, the outdoor compressor, the outdoor fan, the indoor fan, and the outdoor unit power supply. When the air conditioning system is currently in ventilation mode, other loads operating on the system may affect the operation of sterilization mode, so these other loads need to be shut down. Reducing the fan speed means adjusting it to the lowest possible speed; the first delay time is set to 15–30 seconds, more preferably 20 seconds.

[0042] Preferably, the first preset time is set to 15-30 seconds; more preferably, the first preset time t1 is set to 20 seconds. The indication of entering sterilization mode is a countdown timer and / or a flashing indicator light. Specifically, the first preset time t1 is displayed as a countdown on the air conditioning system. After the air conditioning system load is turned off and the countdown reaches 20 seconds, sterilization mode is entered, and a prompt indicating entry into sterilization mode is displayed. The setting of the first preset time ensures that the air conditioning system load has been completely turned off.

[0043] Furthermore, the flashing indicator light in the upcoming sterilization mode prompt is set to flash once every second preset time t2, where the second preset time t2 is set to 500ms. Preferably, during the first preset time t1 of the countdown, the flashing indicator light flashes once every second preset time t2, providing a dual reminder to the user and making it easier for the user to perceive that the air conditioning system is about to perform a sterilization operation.

[0044] S2c: When the air conditioning system is in cooling mode, adjust the air conditioning system operation mode to the current speed air supply mode, continue for the second delay time, and execute step S2b.

[0045] When the air conditioner is in cooling mode, the compressor and outdoor fan of the outdoor unit should be turned off. The operating mode should be adjusted to the current fan speed and maintained for the second delay time to fully increase air circulation within the air conditioning system, reduce internal humidity, and enhance sterilization. The second delay time is set to 0.5–3 minutes, preferably 1 minute.

[0046] Once the air conditioning system is switched to air supply mode, perform the same steps as S2b.

[0047] S2d. When the air conditioning system is in heating mode, adjust the air conditioning system operation mode to the current speed air supply mode, continue for the second delay time, and execute step S2b.

[0048] When the air conditioner is in heating mode, the compressor and outdoor fan of the outdoor unit should be turned off. First, adjust the operating mode to the current speed of the air supply mode and continue for the second delay time to fully cool the evaporator temperature and avoid the evaporator temperature from being too high and affecting the operation of the pulse sterilization lamp, thereby avoiding damage to the pulse sterilization lamp due to excessively high operating temperature.

[0049] Once the air conditioning system is switched to air supply mode, perform the same steps as S2b.

[0050] S3. After entering the sterilization mode, the sterilization module performs a charging process. After the charging process is completed, the pulse sterilization function is executed.

[0051] During the charging process after entering sterilization mode, the air conditioning system stops receiving control signals and powers on the sterilization module. Specifically, control signals include inputs from the remote control and display module. The air conditioning system stops receiving control signals to prevent them from interfering with the charging operation of the sterilization module, thereby improving sterilization efficiency and the subsequent operational safety of the air conditioning system.

[0052] It should be noted that the sterilization module charging process in this embodiment can start charging the sterilization module at the moment the air conditioning system load is turned off, shortening the entire running time of the sterilization module, thereby shortening the duration after the air conditioning system load is turned off, and avoiding the impact of the indoor user comfort on the load being turned off for too long.

[0053] Furthermore, activating the power supply to the sterilization module involves activating the power supply to the high-pressure xenon pulse lamp control module, and this power supply is maintained for a third preset time t3 to charge the capacitors in the sterilization module, facilitating subsequent sterilization operations. Preferably, the third preset time t3 is set to 10 seconds, and the charging voltage is 12V, meaning the high-pressure xenon pulse lamp control module is powered by 12V for 10 seconds.

[0054] After the charging process is complete, the pulse sterilization function is executed, which involves pulse flashing light sterilization. Specifically, the pulse flashing light sterilization process includes: opening the enable port, and outputting a high-level pulse for the required excitation time in seconds at first set intervals through the control port, for a total of n pulses, and then closing the enable port to complete the sterilization process.

[0055] Specifically, the first set time is set to 0.5–2 seconds, the excitation time is set to 5 ms, and n is set to 20–200. Setting the excitation time to 5 ms avoids excessively long excitation times that could cause the high-pressure xenon pulse lamp to overheat and affect its lifespan, while also preventing excessively short excitation times from affecting the sterilization effect. Preferably, the first set time is set to 1 second.

[0056] Furthermore, the pulse sterilization function can be selectively divided into a rapid sterilization mode and a deep sterilization mode. When the rapid sterilization mode is activated, n is set to 20-50; when the deep sterilization mode is activated, n is set to 100-150. For example, under the condition that the first set time is 1 second, in the rapid sterilization mode, the high-pressure xenon pulse lamp flashes 30 times in about 30 seconds, with each high-pressure xenon pulse lamp activation time being 5ms. When the deep sterilization mode is activated, the air conditioning controller controls the high-pressure xenon pulse lamp to flash 120 times in about 120 seconds during the flashing process, with each high-pressure xenon pulse lamp activation time being 5ms. Furthermore, different sterilization modes are selected based on the received sterilization signal.

[0057] S4. After outputting a specific number of n pulses, the sterilization mode ends, exits the sterilization mode, and enters the sterilization cooling mode.

[0058] After the sterilization mode ends, the process of exiting the sterilization mode includes: closing the enable port, stopping the output pulse, turning off the 12V power supply to the high-pressure xenon pulse lamp control module, the control system starting to receive control signals, simultaneously turning off the indicator light and prompt sound for the sterilization mode, and after a fourth preset time t4, the air conditioning system returns to the operating state before receiving the sterilization start signal, and then enters the sterilization cooling mode. The fourth preset time t4 is set to 3-10 seconds, preferably 5 seconds, to allow the pulse lamp and nearby structural components to cool sufficiently without affecting the normal operation of the air conditioner. The air conditioning system returning to the operating state before receiving the sterilization start signal refers to the current operating parameters and operating mode of the air conditioning system recorded in step S2.

[0059] The sterilization and cooling mode is a shielded sterilization mode within the fifth preset time t5. That is, the pulse sterilization mode will not be activated within the fifth preset time t5, avoiding the pulse lamp from being unable to dissipate heat in time due to frequent activation or prolonged operation of the pulse lamp, thus fully ensuring the normal operation and lifespan of the pulse lamp. Preferably, the fifth preset time t5 is set to 2–10 minutes, more preferably, the fifth preset time t5 is set to 3 minutes.

[0060] The sterilization control method of this invention employs a high-pressure xenon pulse lamp, which combines the effects of ultraviolet radiation and photothermal activity. After activating the sterilization mode, it achieves a good sterilization effect in a short time. Simultaneously, when the air conditioner is off and sterilization is in progress, the user is alerted by a constantly lit sterilization indicator light and / or an audible warning, allowing the user to clearly perceive the sterilization process. When the air conditioner is on, depending on its operating mode, it is first adjusted to fan mode before executing the shutdown and sterilization modes, allowing bacteria to fully enter the air conditioner's interior and reducing internal humidity, thus enhancing the sterilization effect. Upon entering shutdown mode, the air conditioning system load is turned off, allowing the user to perceive the impending sterilization process. Simultaneously, the pulse lamp provides rapid, short-duration sterilization, shortening the sterilization time and preventing prolonged load shutdown from affecting indoor user comfort. After the sterilization mode ends, a sterilization cooling mode is set to prevent the pulse lamp from failing to dissipate heat due to frequent activation or prolonged operation, thus avoiding damage and ensuring the pulse lamp's continued normal operation and lifespan.

[0061] like Figure 2 As shown, as part of this embodiment, the specific steps of the sterilization control method are described below:

[0062] S1. Receive the sterilization start signal and start the pulse sterilization control;

[0063] S21. Determine whether the air conditioner is currently in a powered-off state. If it is not powered-off, determine the current operating mode of the air conditioner and execute operations S2b, S2c, and S2d according to the current operating mode. If it is powered-off, enter the sterilization mode and execute step S31.

[0064] S2b: The current operating mode of the air conditioning system is air supply mode; execute S22.

[0065] S2c: The current operating mode of the air conditioning system is cooling mode. Adjust the operating mode of the air conditioning system to the current fan speed mode for 1 minute, and then execute step S2b.

[0066] S2d: The current operating mode of the air conditioning system is heating mode. Adjust the operating mode of the air conditioning system to the current fan speed mode for 1 minute, and then execute step S2b.

[0067] S22. Adjust the fan speed to the lowest speed and close the air guide plate. After 20 seconds, enter the shutdown mode, turn off the air conditioning system load, and the air conditioning system will display a prompt that it is about to enter the sterilization mode and flash the corresponding indicator light to indicate that it is about to enter the sterilization mode.

[0068] S31. After entering the sterilization mode, stop receiving remote control signals and the sterilization indicator light stays on.

[0069] S32. Turn on the 12V power supply to the high-voltage xenon pulse lamp module and continue to supply power for 10 seconds;

[0070] S33. Determine whether the sterilization mode is deep sterilization mode or rapid sterilization mode. If it is deep sterilization mode, execute step S34. If it is rapid sterilization mode, execute step S35.

[0071] S34. The high-pressure xenon pulse lamp flashes 120 times within 120 seconds, and the activation time of each high-pressure xenon pulse lamp is 5ms.

[0072] S35. The high-pressure xenon pulse lamp flashes 30 times within 30 seconds, and the activation time of each high-pressure xenon pulse lamp is 5ms.

[0073] S41. After outputting a specific number of n pulses, the sterilization mode ends and exits. The control system starts to receive control signals, turns off the sterilization indicator light, and then turns off the sterilization mode prompt. The air conditioning system returns to the operating state before receiving the sterilization start signal.

[0074] S42. Execute sterilization and cooling mode, i.e., shield sterilization mode within 3 minutes.

[0075] Example 2

[0076] like Figures 3-4 As shown, a sterilization control method includes:

[0077] S1. Upon receiving the sterilization activation signal, the air conditioning system enters the preparation phase.

[0078] The sterilization activation signal received by the air conditioning system can be input by the user, or it can be automatically issued by the air conditioning system's bacterial detection device after detecting that the indoor bacterial concentration exceeds the preset value.

[0079] When the air conditioner receives the sterilization activation signal, it needs to adjust the air conditioning system to the most suitable operating state for sterilization to avoid affecting the sterilization effect due to the operation of the air conditioner. Therefore, in the preparation stage, the air conditioning system needs to make different preparations according to the current operating mode to adjust the air conditioning system to the most suitable sterilization state with low load or zero load.

[0080] S2. Record the current operating parameters and operating mode of the air conditioning system, and determine the current operating mode;

[0081] S2a. When the air conditioning system is currently off, immediately enter the sterilization mode;

[0082] When the air conditioning system is currently off, it has no other excess load and will not affect the normal operation of the sterilization mode. Therefore, the air conditioning system can be controlled to immediately enter the sterilization mode. Specifically, when the air conditioning system is currently off, it can selectively provide a prompt to enter the sterilization mode, alerting the user to the start of the sterilization process, allowing the user to clearly perceive the sterilization process in progress. Furthermore, the entry into sterilization mode is indicated by a constantly lit sterilization indicator light and / or an audible prompt during the sterilization process.

[0083] In this embodiment, after entering the sterilization mode, a sterilization timing program is initiated. The sterilization timing T2 is the sum of the charging time and the pulse flashing lamp sterilization time. The charging time is the third preset time described in Example 1. Preferably, the sterilization timing T2 = 10s + 120s, and the sterilization timing T2 can be selectively displayed on the air conditioner's display module.

[0084] When the air conditioning system is not turned off, adjust the operating mode of the air conditioning system to the current fan speed mode and then enter the shutdown mode, as follows:

[0085] S2b: When the current operating mode of the air conditioning system is the air supply mode, enter the air supply mode sterilization countdown T1b, reduce the fan speed and close the air guide plate, and after the first delay time, enter the shutdown mode.

[0086] When the air conditioning system is in air supply mode, the indoor fan speed needs to be reduced and the air deflector closed for a first delay time to allow bacteria in the indoor air to fully enter the air conditioner before entering the shutdown mode. Further, upon entering shutdown mode, the air conditioning system load is shut down, and the system selectively displays a warning that it is about to enter sterilization mode, entering sterilization mode after a first preset time t1. The air conditioning system load includes electric heating, the swing motor, the outdoor compressor, the outdoor fan, the indoor fan, and the outdoor unit power supply. When the air conditioning system is currently in air supply mode, other loads operating on the system may affect the operation of the sterilization mode, requiring the shutdown of these other loads. Reducing the fan speed means adjusting it to the lowest possible speed; the first delay time is set to 15–30 seconds, more preferably 20 seconds. Further, after entering sterilization mode, a sterilization timing program is initiated, with sterilization timing T2 being the same as the sterilization timing in step S2a.

[0087] The air supply mode sterilization countdown T1b is the sum of the first delay time and the first preset time. Preferably, the air supply mode sterilization countdown T1b = 20s + 20s (load off). The air supply mode sterilization countdown T1b can be selectively displayed on the air conditioner's display module.

[0088] Preferably, the first preset time is set to 15-30 seconds; more preferably, the first preset time t1 is set to 20 seconds. The indication of entering sterilization mode is a countdown timer and / or a flashing indicator light. Specifically, the first preset time t1 is displayed as a countdown on the air conditioning system. After the air conditioning system load is turned off and the countdown reaches 20 seconds, sterilization mode is entered, and a prompt indicating entry into sterilization mode is displayed. The setting of the first preset time ensures that the air conditioning system load has been completely turned off.

[0089] Furthermore, the flashing indicator light in the upcoming sterilization mode prompt is set to flash once every second preset time t2, where the second preset time t2 is set to 500ms. Preferably, during the first preset time t1 of the countdown, the flashing indicator light flashes once every second preset time t2, providing a dual reminder to the user and making it easier for the user to perceive that the air conditioning system is about to perform a sterilization operation.

[0090] S2c, When the air conditioning system is in cooling mode, enter the cooling mode sterilization countdown T1c, adjust the air conditioning system operation mode to the current speed air supply mode, and continue for the second delay time.

[0091] When the air conditioner is in cooling mode, the operating mode is adjusted to the current fan speed mode. The outdoor unit's compressor and outdoor fan must be turned off, and this process is maintained for a second delay time to fully increase air circulation within the air conditioning system, reduce internal humidity, and enhance the sterilization effect. The second delay time is set to 0.5–3 minutes, preferably 1 minute. After adjusting to the current fan speed mode, the fan speed is reduced and the air deflector is closed, maintaining this for the first delay time. This allows bacteria in the indoor air to fully enter the air conditioner before entering shutdown mode. Furthermore, upon entering shutdown mode, the air conditioning system load is shut down. The air conditioning system selectively displays a warning that it is about to enter sterilization mode, and then enters sterilization mode after a first preset time t1. The air conditioning system load includes electric heating, the swing motor, the outdoor compressor, the outdoor fan, the indoor fan, and the outdoor unit power supply. When the air conditioning system is currently in fan mode, other loads operating in the air conditioning system may affect the operation of sterilization mode; therefore, these other loads must be shut down. Reducing the fan speed means adjusting the fan speed to the lowest possible speed; the first delay time is set to 15-30 seconds, more preferably, the first delay time is set to 20 seconds. Further, after entering the sterilization mode, a sterilization timing program is initiated, and the sterilization timing T2 is the same as the sterilization timing in step S2a.

[0092] The sterilization countdown timer T1c in cooling mode is the sum of the second delay time, the first delay time, and the first preset time. Preferably, the sterilization countdown timer T1c in cooling mode = 60s + 20s + 20s (load off). The sterilization countdown timer T1c in cooling mode can be selectively displayed on the air conditioner's display module.

[0093] S2d: When the air conditioning system is in heating mode, enter the heating mode sterilization countdown T1d, adjust the air conditioning system operation mode to the current speed air supply mode, and continue for the second delay time.

[0094] When the air conditioner is in heating mode, the operating mode is adjusted to the current fan speed, the outdoor unit's compressor and outdoor fan are turned off, and this continues for a second delay time to fully cool the evaporator temperature, preventing the evaporator temperature from becoming too high and affecting the operation of the pulse germicidal lamp, thus preventing damage to the pulse germicidal lamp due to excessive heat. After adjusting to the current fan speed, the fan speed is reduced and the air guide vane is closed, continuing for a first delay time to allow bacteria in the indoor air to fully enter the air conditioner before entering the shutdown mode. Furthermore, upon entering the shutdown mode, the air conditioning system load is shut down, and the air conditioning system selectively displays a warning that it is about to enter the sterilization mode, entering sterilization mode after a first preset time t1. The air conditioning system load includes the electric heater, the swing motor, the outdoor compressor, the outdoor fan, the indoor fan, and the outdoor unit power supply. When the air conditioning system is currently in fan speed mode, other loads operating in the air conditioning system may affect the operation of the sterilization mode, so these other loads need to be shut down. Reducing the fan speed means adjusting the fan speed to the lowest possible speed; the first delay time is set to 15-30 seconds, more preferably, the first delay time is set to 20 seconds. Further, after entering the sterilization mode, a sterilization timing program is initiated, and the sterilization timing T2 is the same as the sterilization timing in step S2a.

[0095] The sterilization countdown timer T1d in heating mode is the sum of the second delay time, the first delay time, and the first preset time. Preferably, the sterilization countdown timer T1d in heating mode = 60s + 20s + 20s (load off). The sterilization countdown timer T1d in heating mode can be selectively displayed on the air conditioner's display module.

[0096] S3. After entering the sterilization mode, the sterilization module performs a charging process. After the charging process is completed, the pulse sterilization function is executed.

[0097] During the charging process after entering sterilization mode, the air conditioning system stops receiving control signals and powers on the sterilization module. Specifically, control signals include inputs from the remote control and display module. The air conditioning system stops receiving control signals to prevent them from interfering with the charging operation of the sterilization module, thereby improving sterilization efficiency and the subsequent operational safety of the air conditioning system.

[0098] It should be noted that the sterilization module charging process in this embodiment can start charging the sterilization module at the moment the air conditioning system load is turned off, shortening the entire running time of the sterilization module, thereby shortening the duration after the air conditioning system load is turned off, and avoiding the impact of the indoor user comfort on the load being turned off for too long.

[0099] Furthermore, activating the power supply to the sterilization module involves activating the power supply to the high-pressure xenon pulse lamp control module, and this power supply is maintained for a third preset time t3 to charge the capacitors in the sterilization module, facilitating subsequent sterilization operations. Preferably, the third preset time t3 is set to 10 seconds, and the charging voltage is 12V, meaning the high-pressure xenon pulse lamp control module is powered by 12V for 10 seconds.

[0100] After the charging process is complete, the pulse sterilization function is executed, which involves pulse flashing light sterilization. Specifically, the pulse flashing light sterilization process includes: opening the enable port, and outputting a high-level pulse for the required excitation time in seconds at first set intervals through the control port, for a total of n pulses, and then closing the enable port to complete the sterilization process.

[0101] Specifically, the first set time is set to 0.5–2 seconds, the excitation time is set to 5 ms, and n is set to 20–200. Setting the excitation time to 5 ms avoids excessively long excitation times that could cause the high-pressure xenon pulse lamp to overheat and affect its lifespan, while also preventing excessively short excitation times from affecting the sterilization effect. Preferably, the first set time is set to 1 second.

[0102] Furthermore, the pulse sterilization function can be selectively divided into a rapid sterilization mode and a deep sterilization mode. When the rapid sterilization mode is activated, n is set to 20-50; when the deep sterilization mode is activated, n is set to 100-150. For example, under the condition that the first set time is 1 second, in the rapid sterilization mode, the high-pressure xenon pulse lamp flashes 30 times in about 30 seconds, with each high-pressure xenon pulse lamp activation time being 5ms. When the deep sterilization mode is activated, the air conditioning controller controls the high-pressure xenon pulse lamp to flash 120 times in about 120 seconds during the flashing process, with each high-pressure xenon pulse lamp activation time being 5ms. Furthermore, different sterilization modes are selected based on the received sterilization signal.

[0103] S4. After outputting a specific number of n pulses, the sterilization mode ends, exits the sterilization mode, and enters the sterilization cooling mode.

[0104] After the sterilization mode ends, the process of exiting the sterilization mode includes: closing the enable port, stopping the output pulse, turning off the 12V power supply to the high-pressure xenon pulse lamp control module, the control system starting to receive control signals, simultaneously turning off the indicator light and prompt sound for the sterilization mode, and after a fourth preset time t4, the air conditioning system returns to the operating state before receiving the sterilization start signal, and then enters the sterilization cooling mode. The fourth preset time t4 is set to 3-10 seconds, preferably 5 seconds, to allow the pulse lamp and nearby structural components to cool sufficiently without affecting the normal operation of the air conditioner. The air conditioning system returning to the operating state before receiving the sterilization start signal refers to the current operating parameters and operating mode of the air conditioning system recorded in step S2.

[0105] The sterilization and cooling mode is a shielded sterilization mode within the fifth preset time t5. That is, the pulse sterilization mode will not be activated within the fifth preset time t5, avoiding the pulse lamp from being unable to dissipate heat in time due to frequent activation or prolonged operation of the pulse lamp, thus fully ensuring the normal operation and lifespan of the pulse lamp. Preferably, the fifth preset time t5 is set to 2–10 minutes, more preferably, the fifth preset time t5 is set to 3 minutes.

[0106] The sterilization control method of this invention employs a high-pressure xenon pulse lamp, which combines the effects of ultraviolet radiation and photothermal activity. After activating the sterilization mode, it achieves a good sterilization effect in a short time. Simultaneously, when the air conditioner is off and sterilization is in progress, the user is alerted by a constantly lit sterilization indicator light and / or an audible warning, allowing the user to clearly perceive the sterilization process. When the air conditioner is on, depending on its operating mode, it is first adjusted to fan mode before executing the shutdown and sterilization modes, allowing bacteria to fully enter the air conditioner's interior and reducing internal humidity, thus enhancing the sterilization effect. Upon entering shutdown mode, the air conditioning system load is turned off, allowing the user to perceive the impending sterilization process. Simultaneously, the pulse lamp provides rapid, short-duration sterilization, shortening the sterilization time and preventing prolonged load shutdown from affecting indoor user comfort. After the sterilization mode ends, a sterilization cooling mode is set to prevent the pulse lamp from failing to dissipate heat due to frequent activation or prolonged operation, thus avoiding damage and ensuring the pulse lamp's continued normal operation and lifespan.

[0107] like Figure 4 As shown, as part of this embodiment, the specific steps of the sterilization control method are described below:

[0108] S1. Receive the sterilization start signal and start the pulse sterilization control;

[0109] S21. Determine whether the air conditioner is currently in a powered-off state. If it is not powered-off, determine the current operating mode of the air conditioner and execute operations S2b, S2c, and S2d according to the current operating mode. If it is powered-off, enter the sterilization mode and sterilization timing program, and execute step S31.

[0110] S2b: The current operating mode of the air conditioning system is air supply mode. Enter the air supply mode sterilization countdown and execute S22.

[0111] S2c: The current operating mode of the air conditioning system is cooling mode. Enter the cooling mode sterilization countdown, adjust the air conditioning system operating mode to the current fan speed mode, continue for 1 minute, and execute step S22.

[0112] S2d: The current operating mode of the air conditioning system is heating mode. Enter the heating mode sterilization countdown, adjust the air conditioning system operating mode to the current speed air supply mode, continue for 1 minute, and execute step S22.

[0113] S22. Adjust the fan speed to the lowest speed and close the air guide plate. After 20 seconds, enter the shutdown mode, turn off the air conditioning system load, and the air conditioning system will display a prompt that it is about to enter the sterilization mode and flash the corresponding indicator light to indicate that it is about to enter the sterilization mode.

[0114] S31. After entering the sterilization mode, stop receiving remote control signals and the sterilization indicator light stays on.

[0115] S32. Turn on the 12V power supply to the high-voltage xenon pulse lamp module and continue to supply power for 10 seconds;

[0116] S33. Determine whether the sterilization mode is deep sterilization mode or rapid sterilization mode. If it is deep sterilization mode, execute step S34. If it is rapid sterilization mode, execute step S35.

[0117] S34. The high-pressure xenon pulse lamp flashes 120 times within 120 seconds, and the activation time of each high-pressure xenon pulse lamp is 5ms.

[0118] S35. The high-pressure xenon pulse lamp flashes 30 times within 30 seconds, and the activation time of each high-pressure xenon pulse lamp is 5ms.

[0119] S41. After outputting a specific number of n pulses, the sterilization mode ends and exits. The control system starts to receive control signals, turns off the sterilization indicator light, and then turns off the sterilization mode prompt. The air conditioning system returns to the operating state before receiving the sterilization start signal.

[0120] S42. Execute sterilization and cooling mode, i.e., shield sterilization mode within 3 minutes.

[0121] As part of the embodiments of the present invention, an air conditioning system is also provided, including a sterilization module and a control module. The sterilization module is configured as a high-pressure xenon pulse lamp, and the control module is used to control the normal operation of the high-pressure xenon pulse lamp, such as preparation, charging, and flashing. The air conditioning system also includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, a control system, a display module, and other common air conditioning modules. The display module is used to display information such as countdown timers and indicator lights.

[0122] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method of controlling fungicide, characterized by, The application relates to an air conditioning system capable of performing a sterilization control method. When a sterilization start signal is received, the air conditioning system enters a preparation stage; The current operation parameters and operation mode of the air conditioning system are recorded, and when the air conditioning system is currently in a shutdown state, a sterilization mode and a sterilization timing T2 program are entered; When the current operation mode of the air conditioning system is a supply air mode, a sterilization countdown T1b in the supply air mode is entered, the fan speed is reduced and the air deflector is closed, and after a first delay time, a shutdown mode is entered; When the air conditioning system is in a refrigeration mode, a sterilization countdown T1c in the refrigeration mode is entered, the operation mode of the air conditioning system is adjusted to a supply air mode at the current speed, a second delay time is continued, the fan speed is reduced and the air deflector is closed, and after a first delay time, the shutdown mode is entered; When the air conditioning system is in a heating mode, a sterilization countdown T1d in the heating mode is entered, the operation mode of the air conditioning system is adjusted to a supply air mode at the current speed, a second delay time is continued, the fan speed is reduced and the air deflector is closed, and after a first delay time, the shutdown mode is entered; When the shutdown mode is entered, the load of the air conditioning system is turned off, and after a first preset time t1, the sterilization mode is entered; The sterilization countdown T1b in the supply air mode is the sum of the first delay time and the first preset time; the sterilization countdown T1c in the refrigeration mode is the sum of the second delay time, the first delay time and the first preset time; and the sterilization countdown T1d in the heating mode is the sum of the second delay time, the first delay time and the first preset time; After the load of the air conditioning system is turned off, the sterilization mode is entered, and after the sterilization mode is entered, a charging process is performed by the sterilization module; after the charging process is completed, a pulse sterilization function is performed; The pulse sterilization function includes: opening an enable port, outputting a high-level pulse with a required trigger time of seconds through a control port every first set time, outputting a specific number of n pulses in total, and then closing the enable port to complete the sterilization process; After the sterilization mode is completed, the process of exiting the sterilization mode includes: closing the enable port, stopping the output pulse, turning off the power supply to the pulse lamp control module, starting the control system to receive the control signal, turning off the indicator light and prompt sound of the sterilization mode prompt, and after a fourth preset time t4, the air conditioning system returns to the operation state before the sterilization start signal is received; After the sterilization mode is completed, the sterilization mode is exited and a sterilization cooling mode is performed, and the sterilization cooling mode is a shielding sterilization mode for a fifth preset time t5, and the fifth preset time t5 is set to 2-10 min.

2. The sterilization control method according to claim 1, characterized by, The sterilization timing T2 is the sum of the charging time and the pulse flash lamp sterilization time.

3. The sterilization control method according to claim 1, characterized by, After the sterilization mode is entered, the charging process is performed, the air conditioning system stops receiving the control signal, and the power supply to the sterilization module is turned on.

4. The sterilization control method according to claim 3, characterized by, The power supply to the sterilization module is turned on, and the power supply to the high-pressure xenon pulse lamp control module is turned on and maintained for a third preset time t3.

5. An air conditioning system characterized by comprising: The air conditioning system can perform the sterilization control method in any one of claims 1-4, and the air conditioning system comprises a sterilization module and a control module, wherein the sterilization module is a high-pressure xenon pulse lamp, and the control module is used for controlling the high-pressure xenon pulse lamp.

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