Pulse ultraviolet sterilization control method for air conditioner and air conditioning system

Abstract

The application provides a pulse ultraviolet sterilization control method and an air conditioning system, comprising: receiving a pulse ultraviolet sterilization opening signal, entering a preparation stage; recording current air conditioning system operation parameters and operation modes, when the air conditioning system is in a shutdown state, entering a pulse ultraviolet sterilization mode; 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 shutdown mode and then entering the pulse ultraviolet sterilization mode; after entering the pulse ultraviolet sterilization mode, the pulse ultraviolet sterilization module performs a charging process, after completing the charging process, performing a pulse ultraviolet sterilization function; when the pulse ultraviolet sterilization mode ends, exiting the pulse ultraviolet sterilization mode and entering a cooling mode. Pulse ultraviolet sterilization can achieve good pulse ultraviolet sterilization effect in a short time, and the pulse ultraviolet sterilization indicator light and / or prompt sound can remind the user that the pulse ultraviolet sterilization is about to be performed, so that the user can clearly perceive the pulse ultraviolet sterilization mode.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to a pulsed ultraviolet sterilization control method and air conditioning system for air conditioning. 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.

[0003] A novel sterilization technology, pulsed ultraviolet (UV) sterilization, utilizes the instantaneous release effect of intense UV light to kill bacteria, fungi, and other microorganisms. The pulsed UV light releases high energy in the form of light radiation within a very short time, generating extremely high peak power, reaching megawatt levels. Pulsed UV light can break down the DNA molecular chains of microorganisms, completely destroying their cell walls, cell membranes, and nucleic acid structures, preventing bacterial replication or mutation, and without producing secondary pollutants such as ozone. The combined effects of UV-C sterilization, thermal effects, and continuous pulses enable pulsed sterilization to effectively kill vegetative cells, fungal spores, bacterial spores, viruses, and other microorganisms, demonstrating excellent sterilization efficacy.

[0004] Compared to traditional ultraviolet (UV) sterilization, pulsed light offers advantages such as stronger sterilization power, higher sterilization efficiency, and greater safety and energy saving. According to relevant research, the inactivation effect of a few pulses of intense pulsed light far surpasses the sterilization effect of UV light. Microorganisms exposed to pulsed light exhibit a single-stage decay curve, while those exposed to UVGI light show a typical two-stage decay curve with a significant second stage. Therefore, pulsed light sterilization is faster and more thorough. Furthermore, UV sterilization uses mercury-containing low- or medium-pressure UV lamps, while pulsed light lamps typically use xenon lamps, which do not contain mercury vapor. Therefore, pulsed light does not require consideration of safety issues such as mercury leakage.

[0005] Pulse sterilization technology has been applied in water disinfection, food hygiene processing, and medical and health fields, but its miniaturization and application in household appliances has not yet been widely adopted. Furthermore, due to its requirement for high-voltage pulses, its application in the air conditioning field necessitates the design of specific operating logic. Summary of the Invention

[0006] In view of this, the present invention aims to propose a pulsed ultraviolet sterilization control method and air conditioning system for air conditioning, so as to solve the problems of poor pulsed ultraviolet sterilization effect and inability of users to perceive pulsed ultraviolet sterilization operation in the prior art.

[0007] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0008] A pulsed ultraviolet sterilization control method includes:

[0009] Upon receiving the pulsed ultraviolet sterilization activation signal, the air conditioning system enters the preparation phase.

[0010] Record the current operating parameters and operating mode of the air conditioning system. When the air conditioning system is currently in the off state, enter the pulse ultraviolet sterilization mode. When the air conditioning system is currently in the non-off state, adjust the operating mode of the air conditioning system to the off mode, turn off the load of the air conditioning system, and then enter the pulse ultraviolet sterilization mode.

[0011] After entering the pulsed ultraviolet sterilization mode, the pulsed ultraviolet sterilization module performs a charging process, and after the charging process is completed, it performs the pulsed ultraviolet sterilization function.

[0012] The pulsed ultraviolet (UV) sterilization mode ends, exiting the pulsed UV sterilization mode and entering the pulsed UV sterilization cooling mode. Pulsed UV sterilization provides effective sterilization in a short time. While the air conditioner is off and pulsed UV sterilization is in progress, the user is alerted by a constantly lit pulsed UV sterilization indicator light and / or an audible warning sound, ensuring clear awareness of the sterilization process. After the pulsed UV sterilization mode ends, the pulsed UV sterilization 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, the air conditioner is first switched to fan mode before the off mode and pulsed UV sterilization mode are executed, allowing bacteria to fully penetrate the air conditioner and reducing internal humidity, thereby enhancing the pulsed UV sterilization effect.

[0013] Furthermore, when the air conditioning system is currently off, it prompts the user to enter the pulsed ultraviolet sterilization mode; when the air conditioning system is in cooling or heating mode, it adjusts its operating mode to the current fan speed; when the air conditioning system is currently in fan mode, it reduces the fan speed and closes the air deflector, and after a first delay, it enters the off mode. When the air conditioning system is currently on, other loads running on the system may affect the operation of the pulsed ultraviolet sterilization mode, requiring the shut-off of these loads. The first preset time ensures that all loads on the air conditioning system have been shut down.

[0014] Furthermore, when entering the shutdown mode, the air conditioning system load is turned off, the air conditioning system provides a prompt that it is about to enter the pulse ultraviolet sterilization mode, and enters the pulse ultraviolet sterilization mode after an interval of a first preset time t1.

[0015] Furthermore, the indication of entering the pulsed ultraviolet sterilization mode is that the pulsed ultraviolet sterilization indicator light remains constantly lit and / or an indication sound is emitted during the pulsed ultraviolet sterilization process; the indication of being about to enter the pulsed ultraviolet sterilization mode is that a countdown timer is displayed and / or an indicator light flashes. This reminds the user that the pulsed ultraviolet sterilization operation is about to begin, enhancing user awareness.

[0016] Furthermore, during the charging process after entering the pulsed ultraviolet sterilization mode, the air conditioning system stops receiving control signals and activates the power supply to the pulsed ultraviolet sterilization module. By stopping the air conditioning system from receiving control signals, the system avoids interference with the charging operation of the pulsed ultraviolet sterilization module, thereby improving the efficiency of pulsed ultraviolet sterilization and the subsequent operational safety of the air conditioning system.

[0017] Furthermore, activating the power supply to the pulsed ultraviolet sterilization module powers the high-pressure xenon pulse lamp control module and continues for a third preset time t3. This charges the capacitors in the pulsed ultraviolet sterilization module, facilitating subsequent pulsed ultraviolet sterilization operations.

[0018] Furthermore, performing the pulsed ultraviolet sterilization function includes: opening the enable port, and outputting a high-level pulse with 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 pulsed ultraviolet sterilization process.

[0019] Furthermore, the pulsed ultraviolet sterilization function is divided into a rapid pulsed ultraviolet sterilization mode and a deep pulsed ultraviolet sterilization mode. When the rapid pulsed ultraviolet sterilization mode is turned on, n is set to 20-50; when the deep pulsed ultraviolet sterilization mode is turned on, n is set to 100-150.

[0020] Furthermore, the pulsed ultraviolet sterilization cooling mode is to disable the pulsed ultraviolet sterilization mode within a fifth preset time t5. During this fifth preset time t5, the pulsed ultraviolet sterilization mode will not be activated again, avoiding the inability of the pulse lamp to dissipate heat in time due to frequent activation or prolonged operation, thus fully ensuring the normal operation and lifespan of the pulse lamp.

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

[0022] The pulsed ultraviolet sterilization control method of this invention employs a high-pressure xenon pulse lamp, which combines the dual effects of ultraviolet radiation and photothermal action. Combined with intelligent control, it achieves effective pulsed ultraviolet sterilization within a short time after activating the pulsed ultraviolet sterilization mode. Furthermore, when the air conditioner is off and pulsed ultraviolet sterilization is in progress, the user is alerted by a constantly lit pulsed ultraviolet sterilization indicator light and / or an audible warning sound. This not only achieves good pulsed ultraviolet sterilization results but also provides strong user awareness. The rapid, short-duration pulsed ultraviolet sterilization shortens the sterilization time, preventing prolonged off-load periods from affecting indoor user comfort. After the pulsed ultraviolet sterilization mode ends, a pulsed ultraviolet sterilization cooling mode is set to prevent the pulse lamp from failing to dissipate heat due to frequent activation or prolonged operation, ensuring the continued normal operation and lifespan of the pulse lamp.

[0023] Depending on the air conditioner's operating mode, first adjust the air conditioner to the fan mode, then execute the shutdown mode and pulse ultraviolet sterilization mode to allow bacteria to fully enter the air conditioner's interior, reduce the humidity inside the air conditioner, and increase the pulse ultraviolet sterilization effect.

[0024] The present invention also provides an air conditioning system including the pulsed ultraviolet sterilization control method described above. The air conditioning system includes a pulsed ultraviolet sterilization module and a control module, wherein the pulsed ultraviolet 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 advantages of the air conditioning system and the pulsed ultraviolet sterilization control method mentioned above compared to the prior art are the same, and will not be repeated here. Attached Figure Description

[0026] Figure 1 This is a flowchart of the pulsed ultraviolet sterilization control method according to an embodiment of the present invention;

[0027] Figure 2 This is a flowchart illustrating the specific steps of the pulsed ultraviolet sterilization control method described in an embodiment of the present invention. Detailed Implementation

[0028] 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.

[0029] As shown in the figure, a pulsed ultraviolet sterilization control method for air conditioners includes:

[0030] S1. Upon receiving the pulsed ultraviolet sterilization activation signal, the air conditioning system enters the preparation stage.

[0031] The pulsed ultraviolet 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.

[0032] When the air conditioner receives the pulsed ultraviolet (UV) sterilization activation signal, it needs to adjust the air conditioning system to the most suitable operating state for UV sterilization to avoid affecting the sterilization effect. Therefore, during the preparation phase, the air conditioning system needs to be prepared according to its current operating mode to adjust to the most suitable low-load or zero-load operating state for UV sterilization. Because UV sterilization differs from traditional UVC sterilization modes, it requires high-voltage pulsed electricity. If operated simultaneously with cooling or heating modes, it is difficult to provide the necessary power. Furthermore, the sterilization lamp emits high-brightness, shimmering white light, so it is not advisable to open the air deflector during sterilization to prevent light leakage and affect the user experience. Additionally, the sterilization lamp heats up quickly and cannot operate for extended periods, nor can it operate simultaneously with cooling or heating modes for extended periods. Considering all these factors, the air conditioning system must be adjusted to a suitable sterilization operating state.

[0033] S2. Record the current operating parameters and operating mode of the air conditioning system, and determine the current operating mode;

[0034] S2a. When the air conditioning system is currently off, immediately enter the pulse ultraviolet sterilization mode;

[0035] When the air conditioning system is currently off, it has no other excess load and will not affect the normal operation of the pulsed ultraviolet sterilization mode. This is the most suitable state for pulsed ultraviolet sterilization, so the air conditioning system can be controlled to immediately enter the pulsed ultraviolet sterilization mode. Specifically, when the air conditioning system is currently off, it will display a prompt indicating that it is entering the pulsed ultraviolet sterilization mode, alerting the user to the start of the process. This allows the user to clearly perceive the pulsed ultraviolet sterilization process. Furthermore, the prompt to enter the pulsed ultraviolet sterilization mode includes a constantly lit pulsed ultraviolet sterilization indicator light and / or an audible alert.

[0036] 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:

[0037] 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.

[0038] 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. Further, upon entering shutdown mode, the air conditioning system load is shut down, and the system displays a warning that it is about to enter pulsed ultraviolet sterilization mode, entering the pulsed ultraviolet 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 the pulsed ultraviolet 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.

[0039] 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 the pulsed ultraviolet sterilization mode is a countdown reminder and / or a flashing indicator light. That is, 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, the pulsed ultraviolet sterilization mode is entered, and a prompt indicating the entry into pulsed ultraviolet sterilization mode is displayed simultaneously. The setting of the first preset time sufficiently ensures that the air conditioning system load has been completely turned off.

[0040] Furthermore, the flashing indicator light in the indication that the system is about to enter the pulse ultraviolet sterilization mode 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 pulse ultraviolet sterilization.

[0041] 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.

[0042] 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 the pulsed ultraviolet sterilization effect. The second delay time is set to 0.5–3 minutes, preferably 1 minute.

[0043] Once the air conditioning system is switched to air supply mode, perform the same steps as S2b.

[0044] 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.

[0045] 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 ultraviolet germicidal lamp, thereby avoiding damage to the pulse ultraviolet germicidal lamp due to excessively high operating temperature.

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

[0047] S3. After entering the pulsed ultraviolet sterilization mode, the pulsed ultraviolet sterilization module performs a charging process. After the charging process is completed, the pulsed ultraviolet sterilization function is executed.

[0048] During the charging process after entering the pulsed ultraviolet sterilization mode, the air conditioning system stops receiving control signals and activates the power supply to the pulsed ultraviolet sterilization module. Specifically, control signals include remote control and display module inputs. The air conditioning system stops receiving control signals to prevent them from interfering with the charging operation of the pulsed ultraviolet sterilization module, thereby improving the efficiency of pulsed ultraviolet sterilization and the subsequent operational safety of the air conditioning system.

[0049] It should be noted that the pulsed ultraviolet sterilization module charging process in this embodiment can be started at the moment the air conditioning system load is turned off, shortening the entire running time of the pulsed ultraviolet sterilization module, thereby shortening the duration after the air conditioning system load is turned off, and avoiding the impact on the comfort of indoor users due to the load being turned off for too long.

[0050] Furthermore, activating the power supply to the pulsed ultraviolet sterilization module is equivalent to 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. This charges the capacitor in the pulsed ultraviolet sterilization module, facilitating subsequent pulsed ultraviolet 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.

[0051] After the charging process is complete, the pulsed ultraviolet sterilization function is executed, which involves pulsed ultraviolet sterilization with a flashing lamp. Specifically, the process of executing the pulsed ultraviolet sterilization with a flashing lamp 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 pulsed ultraviolet sterilization process.

[0052] 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 pulsed ultraviolet sterilization effect. Preferably, the first set time is set to 1 second.

[0053] Furthermore, the pulsed ultraviolet sterilization function is divided into a rapid pulsed ultraviolet sterilization mode and a deep pulsed ultraviolet sterilization mode. When the rapid pulsed ultraviolet sterilization mode is activated, n is set to 20-50; when the deep pulsed ultraviolet 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 pulsed ultraviolet sterilization mode, the high-pressure xenon pulse lamp flashes 30 times in about 30 seconds, and the activation time of each high-pressure xenon pulse lamp is 5ms. When the deep pulsed ultraviolet sterilization mode is activated, the air conditioner controller controls the high-pressure xenon pulse lamp to flash 120 times in about 120 seconds during the flashing process, and the activation time of each high-pressure xenon pulse lamp is 5ms. Furthermore, different pulsed ultraviolet sterilization modes are matched and entered according to the received pulsed ultraviolet sterilization signal.

[0054] S4. After outputting a specific number of n pulses, the pulsed ultraviolet sterilization mode ends, exits the pulsed ultraviolet sterilization mode, and enters the pulsed ultraviolet sterilization cooling mode.

[0055] After the pulsed ultraviolet sterilization mode ends, the process of exiting the pulsed ultraviolet sterilization mode includes: closing the enable port, stopping pulse output, 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 pulsed ultraviolet sterilization mode, and after a fourth preset time t4, the air conditioning system returns to the operating state before receiving the pulsed ultraviolet sterilization start signal, and then enters the pulsed ultraviolet 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 pulsed ultraviolet sterilization start signal refers to the current operating parameters and operating mode of the air conditioning system recorded in step S2.

[0056] The pulsed ultraviolet sterilization cooling mode disables the pulsed ultraviolet sterilization mode within a fifth preset time t5. That is, the pulsed ultraviolet sterilization mode is not activated within the fifth preset time t5 to avoid the pulse lamp being unable to dissipate heat in time due to frequent activation or prolonged operation, 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.

[0057] The pulsed ultraviolet 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 pulsed ultraviolet sterilization mode, it achieves a good sterilization effect in a short time. Simultaneously, when the air conditioner is off and pulsed ultraviolet sterilization is in progress, the user is alerted by a constantly lit pulsed ultraviolet sterilization indicator light and / or an audible warning sound, ensuring the user clearly perceives the pulsed ultraviolet sterilization process. When the air conditioner is on, depending on its operating mode, it is first adjusted to fan mode before executing the off mode and pulsed ultraviolet sterilization mode, allowing bacteria to fully enter the air conditioner's interior and reducing internal humidity, thus enhancing the pulsed ultraviolet sterilization effect. Upon entering the off mode, the air conditioning system load is shut off, allowing the user to perceive the impending pulsed ultraviolet sterilization process. Simultaneously, the pulse lamp provides rapid, short-duration pulsed ultraviolet sterilization, shortening the sterilization time and preventing prolonged load shutdown from affecting indoor user comfort. After the pulsed ultraviolet sterilization mode ends, a pulsed ultraviolet sterilization cooling mode is set to prevent the pulse lamp from being unable to dissipate heat in time due to frequent switching on or long-term operation of the pulse lamp, thus avoiding damage to the pulse lamp and fully ensuring the normal operation and service life of the pulse lamp.

[0058] As part of an embodiment of the present invention, the specific steps of the pulsed ultraviolet sterilization control method are described below:

[0059] S1. Receive the pulsed ultraviolet sterilization start signal and start the pulsed ultraviolet sterilization control;

[0060] 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 pulse ultraviolet sterilization mode and execute step S31.

[0061] S2b: The current operating mode of the air conditioning system is air supply mode; execute S22.

[0062] 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.

[0063] 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.

[0064] S22. Adjust the fan speed to the lowest speed and close the air guide plate. After 20 seconds, enter the shutdown mode and turn off the air conditioning system load. The air conditioning system displays a 20-second countdown to enter the pulse ultraviolet sterilization mode and flashes the corresponding indicator light to indicate that it is about to enter the pulse ultraviolet sterilization mode.

[0065] S31. After entering the pulsed ultraviolet sterilization mode, stop receiving remote control and other control signals, and the pulsed ultraviolet sterilization indicator light stays on.

[0066] S32. Turn on the 12V power supply to the high-voltage xenon pulse lamp module and continue to supply power for 10 seconds;

[0067] S33. Determine whether the pulsed ultraviolet sterilization mode is deep pulsed ultraviolet sterilization mode or rapid pulsed ultraviolet sterilization mode. If it is deep pulsed ultraviolet sterilization mode, execute step S34. If it is rapid pulsed ultraviolet sterilization mode, execute step S35.

[0068] 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.

[0069] 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.

[0070] S41. After outputting a specific number of n pulses, the pulse ultraviolet sterilization mode ends and exits. The control system starts to receive control signals, turns off the pulse ultraviolet sterilization indicator light, and then turns off the pulse ultraviolet sterilization mode prompt. The air conditioning system returns to the operating state before receiving the pulse ultraviolet sterilization start signal.

[0071] S42. Execute pulsed ultraviolet sterilization and cooling mode, i.e., shield pulsed ultraviolet sterilization mode within 3 minutes.

[0072] As part of the embodiments of the present invention, an air conditioning system is also provided, including a pulsed ultraviolet sterilization module and a control module, wherein the pulsed ultraviolet 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, wherein the display module is used to display countdown, indicator lights, and other information.

[0073] 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 for controlling pulse ultraviolet sterilization of an air conditioner, the method comprising: determining whether a sterilization operation is required; and performing the sterilization operation when the sterilization operation is required. The application relates to an air conditioning system with a pulse ultraviolet sterilization function. When the air conditioning system receives a pulse ultraviolet sterilization starting signal, the air conditioning system enters a preparation stage; When the air conditioning system receives the pulse ultraviolet sterilization starting signal, the air conditioning system enters a preparation stage; the current operation parameters and operation mode of the air conditioning system are recorded; when the air conditioning system is in a shutdown state, the air conditioning system enters a pulse ultraviolet sterilization mode; when the air conditioning system is in a refrigeration mode or a heating mode, the operation mode of the air conditioning system is adjusted to a current speed air supply mode; when the current operation mode of the air conditioning system is the air supply mode, the fan speed is reduced and the air deflector is closed; after a first delay time, the air conditioning system enters a shutdown mode; after the load of the air conditioning system is turned off, the air conditioning system enters the pulse ultraviolet sterilization mode; After the air conditioning system enters the pulse ultraviolet sterilization mode, a charging process is performed; after the charging process is completed, a pulse ultraviolet sterilization function is performed; the pulse ultraviolet sterilization function is divided into a fast pulse ultraviolet sterilization mode and a deep pulse ultraviolet sterilization mode; when the fast pulse ultraviolet sterilization mode is started, n is set to 20-50; When the deep pulse ultraviolet sterilization mode is started, n is set to 100-150; The process of performing the pulse lamp flashing pulse ultraviolet sterilization includes the following steps: an enabling port is opened; a high-level pulse with a required exciting time of seconds is outputted every interval of a first setting time through a control port; a total of n pulses with a specific number are outputted; then the enabling port is closed; and the pulse ultraviolet sterilization process is completed; After the pulse ultraviolet sterilization mode is ended, the pulse ultraviolet sterilization mode is exited and a pulse ultraviolet sterilization cooling mode is performed; The process of exiting the pulse ultraviolet sterilization mode includes the following steps: the enabling port is closed, the pulse output is stopped, a power supply for supplying power to the high-pressure xenon pulse lamp control module is turned off, the control system starts to receive a control signal, the indicator lamp and the prompt sound of the pulse ultraviolet sterilization mode are turned off, and after a fourth preset time t4 is delayed, the air conditioning system returns to a running state before the pulse ultraviolet sterilization starting signal is received, and then enters the pulse ultraviolet sterilization cooling mode; The pulse ultraviolet sterilization cooling mode is a shielding pulse ultraviolet sterilization mode for a fifth preset time t5; the fifth preset time t5 is set to 2-10 min.

2. The pulsed ultraviolet sterilization control method according to claim 1, characterized by, When the air conditioning system is in a shutdown state, the air conditioning system gives a pulse ultraviolet sterilization mode entering prompt to prompt a user to start entering the pulse ultraviolet sterilization mode.

3. The pulsed ultraviolet sterilization control method according to claim 2, characterized by, When the air conditioning system enters the shutdown mode, the load of the air conditioning system is turned off; the air conditioning system gives a pulse ultraviolet sterilization mode entering prompt and enters the pulse ultraviolet sterilization mode after a first preset time t1 is delayed.

4. The pulsed ultraviolet sterilization control method according to claim 3, characterized by, The pulse ultraviolet sterilization mode entering prompt is that the pulse ultraviolet sterilization indicator lamp is always on and / or the prompt sound is ringing during the pulse ultraviolet sterilization process; the pulse ultraviolet sterilization mode entering prompt is a countdown prompt and / or a flashing indicator lamp prompt.

5. The pulsed UV sterilization control method according to claim 1, wherein During the charging process after the air conditioning system enters the pulse ultraviolet sterilization mode, the air conditioning system stops receiving the control signal and starts to supply power to the pulse ultraviolet sterilization module.

6. The pulsed ultraviolet sterilization control method according to claim 5, wherein The power supply for the pulse ultraviolet sterilization module is turned on, and the power supply for the high-pressure xenon pulse lamp control module is turned on and maintained for a third preset time t3.

7. An air conditioning system characterized by, The pulse ultraviolet sterilization control method of any one of claims 1 to 6 can be performed on an air conditioning system comprising a pulse ultraviolet sterilization module and a control module, wherein the pulse ultraviolet sterilization module is configured as a high-pressure xenon pulse lamp, and the control module is configured to control the high-pressure xenon pulse lamp.

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