Air conditioner with negative ion purification function and working method thereof

Abstract

The invention relates to the technical field of air conditioners, and provides an air conditioner with a negative ion purification function and a working method of the air conditioner. The air supply module is used for supplying air to a room where the air conditioner is located or inside the air conditioner; the first air detection module is used for detecting a room where the air conditioner is located to obtain an indoor air quality parameter set, and the second air detection module is used for detecting the interior of the air conditioner to obtain an air conditioner interior air quality parameter set; the image recognition module is used for recognizing the number of users and the cleanable space; the decision module determines that the air conditioner executes indoor cleaning operation and / or air conditioner self-cleaning operation according to the indoor air quality parameter set, the air conditioner internal air quality parameter set and the standard air quality parameter set; the control module controls opening and closing and the air supply direction of the air supply outlet according to the recognition result of the image recognition module and the decision result of the decision module and sends a control instruction to the high-voltage pack.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner with a negative ion purification function and a working method thereof. Background Art

[0002] Traditional air conditioners primarily focus on regulating indoor temperature, while their air purification capabilities are relatively limited. They typically only feature simple filters, resulting in inefficient removal of particulate matter and harmful gases, making them ineffective in addressing indoor air pollution. With increasing concern for indoor air quality, higher demands are being placed on air conditioners' air purification capabilities. While some existing air conditioners with air purification functions incorporate negative ion purification technology, these have numerous shortcomings. For example, the concentration of negative ions released is fixed and cannot be dynamically adjusted to suit different room sizes and air quality, resulting in poor purification results and wasted resources. Furthermore, these air conditioners cannot accurately identify whether a room is occupied or the extent of the space they can purify, often running their purification function continuously when no one is around, resulting in energy waste. Furthermore, most air conditioners neglect the need for self-cleaning internals. Over time, dust and bacteria accumulate inside the air conditioner, affecting its performance and potentially causing secondary contamination of the indoor air. Summary of the Invention

[0003] In response to the above-mentioned defects, the purpose of the present invention is to propose an air conditioner with negative ion purification function and its working method, which aims to intelligently control the concentration of negative ion release, accurately identify the purifiable space and take into account the self-cleaning of the air conditioner, so as to effectively improve the purification effect of indoor air and the interior of the air conditioner.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An air conditioner with a negative ion purification function, comprising an air supply port, an image recognition module, a first air detection module, a second air detection module, a control module, an air supply module, a decision module, and a negative ion generator;

[0006] The negative ion generator includes a high-voltage package and several release media. The high-voltage package is used to output different voltages to different release media to provide the high-voltage electric field required for ionization. The release media are arranged at different positions of the air outlet.

[0007] The air supply module is used to supply air to the room where the air conditioner is located or inside the air conditioner;

[0008] The first air detection module is used to detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and the second air detection module is used to detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner;

[0009] The image recognition module is used to identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space;

[0010] The decision module is used to determine whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set and the standard air quality parameter set;

[0011] The control module is used to control the opening and closing of the air outlet and the air supply direction according to the recognition results of the image recognition module and the decision results of the decision module, and send control instructions to the high-voltage package to control the output voltage of the high-voltage package.

[0012] Preferably, the air conditioner further comprises an air inlet duct, wherein the end of the air inlet duct away from the interior of the air conditioner is provided with a first closable damper and a tube wall release medium array electrically connected to the high-voltage transformer is provided inside the air inlet duct;

[0013] When the air conditioner performs self-cleaning operation, it includes:

[0014] The control module controls the air conditioner to close the air supply port and the first closable damper, controls the high-voltage coil to release a first voltage to the tube wall release medium array to release negative ions, controls the air supply module to supply air to the air inlet duct, adjusts the duty cycle of the first voltage according to the detection result of the second air detection module, and controls the first closable damper to open when the air inlet duct is cleaned;

[0015] When the air conditioner performs an indoor cleaning operation, the control module switches the first closable damper of the air inlet duct to an adaptive opening state.

[0016] Preferably, the air conditioner further comprises an air outlet duct, wherein the air outlet duct is provided with a second and a third closable air guide door at one end close to the interior of the air conditioner and at one end away from the interior of the air conditioner, respectively;

[0017] When the air conditioner performs self-cleaning operation, it includes:

[0018] The control module controls the high-voltage package to release a second voltage to the release medium to release negative ions, controls the third closable guide damper to close, opens the second closable guide damper, and the air supply module circulates air to the air inlet and outlet ducts. When the first closable damper is opened, the control module controls the second closable guide damper to close, and the control module controls the air conditioner to open the air supply port. After the first time length has passed, the control module controls the third closable guide damper to open, and after the second time length has passed, controls the second closable guide damper to open.

[0019] Preferably, the air conditioner further comprises a time recording module, and the time recording module is data-connected with the decision module;

[0020] When the air conditioner performs a self-cleaning operation or an indoor cleaning operation, the time recording module records the corresponding operation type and execution time point and generates a cleaning time sequence log;

[0021] When the decision module detects that an indoor cleaning operation needs to be performed, it retrieves the most recent self-cleaning completion time T1 and indoor cleaning completion time T2 in the cleaning time series log;

[0022] The decision module calculates a first time difference ΔT1 between the current time and T1 and a second time difference ΔT2 between the current time and T2;

[0023] If ΔT1 exceeds the preset self-cleaning validity threshold and ΔT2 exceeds the preset indoor cleaning interval threshold, the decision module generates a compound instruction to perform the self-cleaning operation first and then the indoor cleaning operation;

[0024] The control module responds to the composite instruction, and after completing the opening action of the air outlet of the self-cleaning operation, delays the set protection time and then starts the negative ion release mode corresponding to the indoor cleaning operation.

[0025] Preferably, in the decision module, a guide vane is provided at the air outlet, and performing the indoor cleaning operation when a user is present indoors includes:

[0026] The image recognition module generates a user location distribution map in real time and marks the current user activity area as a directional purification restricted area;

[0027] The control module controls the air supply module to start the avoidance air supply mechanism according to the spatial coordinates of the directional purification restricted area:

[0028] Adjust the guide vanes of the air outlet to form an airflow channel that is not opposite to the user activity area;

[0029] Controlling the high-voltage package to apply an inhibitory output voltage lower than the standard voltage to the release medium closest to the directional purification restriction area;

[0030] The first air detection module monitors the difference in particle concentration in each area in real time. When it detects that the concentration difference between areas exceeds the dynamic balance threshold:

[0031] The control module controls the high voltage to execute a voltage polarity alternating mode, so that adjacent release media produce an alternating ionization effect;

[0032] The control module controls the air supply module to generate an annular airflow field for the non-directional purification restricted area.

[0033] Preferably, in the decision module, performing the indoor cleaning operation when there is no user indoors includes:

[0034] After the image recognition module confirms that there is no one, the decision module activates the global enhanced purification mode:

[0035] The control module opens the first closable damper of the air inlet duct to a maximum ventilation state;

[0036] The high-voltage package applies a periodic enhanced voltage to all released media simultaneously, and its voltage intensity is positively correlated with the operating intensity of the air supply module;

[0037] The second air detection module implements a safety monitoring mechanism:

[0038] Continuously detecting the gas composition inside the air conditioner, and when a preset safety threshold is detected, the second air detection module generates a voltage adjustment instruction;

[0039] The control module dynamically reduces the frequency of the high-voltage package output according to the voltage regulation instruction.

[0040] Preferably, a guide vane is provided at the air outlet. The image recognition module is further used to identify the purifiable enclosed space, as well as the spatial attributes and opening direction of the purifiable enclosed space. When the image recognition module detects that there is no one in the room and there is an open purifiable enclosed space, the following steps are performed:

[0041] The control module drives the guide blades to rotate so that the air outlet direction and the opening direction of the purifiable enclosed space form a vertical spatial angle;

[0042] The control module controls the high-voltage package to activate the connection with the release medium toward the purifiable confined space, and increases the output voltage intensity according to the depth gradient of the target space;

[0043] The control module controls the air supply module to alternately generate high and low wind speed airflows according to a preset cycle, and the cycle length is dynamically adjusted according to the volume of the confined space that can be purified.

[0044] Preferably, the decision module includes:

[0045] When it is detected that at least two parameter items in the indoor air quality parameter set exceed the standard threshold of the standard air quality parameter set, and no parameter item in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, the decision module generates an indoor cleaning operation instruction;

[0046] When it is detected that at least one parameter in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, and no parameter item in the indoor air quality parameter set exceeds the standard threshold of the standard air quality parameter set, the decision module generates a self-cleaning operation instruction;

[0047] When parameters in both the indoor air quality parameter set and the air conditioner internal air quality parameter set exceed the standard:

[0048] The self-cleaning operation is performed first, and after the parameters in the air quality parameter set inside the air conditioner are restored to the corresponding standard threshold range, it automatically switches to the indoor cleaning operation.

[0049] A method for operating an air conditioner with a negative ion purification function, the method being applied to the air conditioner with a negative ion purification function as described above, the method comprising the following steps:

[0050] S1: Detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner;

[0051] S2: Identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space;

[0052] S3: determining whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set, and the standard air quality parameter set;

[0053] S4: Control the opening and closing of the air outlet and the air supply direction according to the recognition result of the image recognition module and the decision result of the decision module, and send a control instruction to the high-voltage package to control the output voltage of the high-voltage package.

[0054] One of the above technical solutions has the following advantages or beneficial effects:

[0055] In this invention, the negative ion generator's high-voltage package outputs different voltages to different release media, generating an ionizing high-voltage electric field. The release media are positioned at different locations along the air outlet, enabling the generated negative ions to cooperate with the air supply module to precisely deliver negative ions and clean air to different areas of the room. This achieves efficient purification and good circulation of indoor air, effectively removing pollutants such as particulate matter and harmful gases. A set of indoor air quality parameters, monitored by a first air detection module, provides data support for air quality assessment and purification decisions. A set of air conditioner internal air quality parameters, monitored by a second air detection module, helps determine whether the air conditioner requires self-cleaning. An image recognition module identifies the room where the air conditioner is located, identifying not only the number of users but also the presence of purifiable spaces, providing spatial location and occupant information for air purification and negative ion release. A decision module compares and analyzes the indoor air quality parameter set, the air conditioner internal air quality parameter set, and a standard air quality parameter set. Using a pre-set decision algorithm and logic rules, it determines whether the air conditioner should perform indoor cleaning or self-cleaning, providing decision support for intelligent air conditioner operation. The control module is equivalent to the execution center of the air-conditioning system. After receiving signals from the image recognition module and the decision-making module, it accurately controls the opening and closing of the air outlet and the air supply direction according to the number of users, the purifiable space and the cleaning operation decision. It realizes different air supply modes by adjusting the motor drive and the air duct switching device, and sends control instructions to the high-voltage package to adjust the output voltage, thereby controlling the release concentration of the negative ion generator and ensuring that the air-conditioning system operates efficiently as required. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0057] Figure 1 Schematic diagram of the structure of an air conditioner with a negative ion purification function provided by an embodiment of the present invention;

[0058] Figure 2 The present invention provides a flowchart of an air conditioner with a negative ion purification function. DETAILED DESCRIPTION

[0059] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0060] In the present invention, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0061] An air conditioner with negative ion purification function, such as Figure 1 As shown, the air conditioner includes an air supply port, an image recognition module, a first air detection module, a second air detection module, a control module, an air supply module, a decision module and a negative ion generator;

[0062] The negative ion generator includes a high-voltage package and several release media. The high-voltage package is used to output different voltages to different release media to provide the high-voltage electric field required for ionization. The release media are arranged at different positions of the air outlet.

[0063] The air supply module is used to supply air to the room where the air conditioner is located or inside the air conditioner;

[0064] The first air detection module is used to detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and the second air detection module is used to detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner;

[0065] The image recognition module is used to identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space;

[0066] The decision module is used to determine whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set and the standard air quality parameter set;

[0067] The control module is used to control the opening and closing of the air outlet and the air supply direction according to the recognition results of the image recognition module and the decision results of the decision module, and send control instructions to the high-voltage package to control the output voltage of the high-voltage package.

[0068] Specifically, the air outlet serves as an outlet for negative ions and purified air, blowing the negative ions generated by the negative ion generator and the clean air delivered by the air supply module to different areas of the room to purify and circulate the indoor air. The air outlet can be designed as a louver-style air outlet, and the air supply direction can be controlled by adjusting the angle of the louver; or a guide plate-style air outlet can be used, and the swing of the guide plate can achieve a wider air supply range. The image recognition module identifies the room where the air conditioner is located, including identifying the number of users and determining whether there is a purifiable space, providing spatial positioning and personnel information for subsequent air purification and negative ion release. The image recognition module uses a combination of a camera and an image processing algorithm. The camera captures indoor images and then uses a deep learning algorithm (such as a convolutional neural network) to identify the number of users and spatial layout. Alternatively, an infrared sensor can be used to sense the infrared characteristics of the human body to determine the number and location of users. Purifiable spaces include drawers, the inside of wardrobes, and open boxes. The first air detection module, typically composed of multiple sensors, is deployed at the air conditioner's outlet or at a suitable location indoors. It monitors indoor air quality parameters such as PM2.5, VOCs, humidity, and temperature in real time, generating a set of indoor air quality parameters to support air quality assessment and purification decisions. The second air detection module, also composed of sensors but installed at key locations within the air conditioner, such as the heat exchanger and air duct, specifically monitors the air quality inside the air conditioner, including parameters such as dust, bacteria, and harmful gases. This generates a set of indoor air quality parameters to help determine whether the air conditioner requires self-cleaning. The decision module, a core logic processing unit, pre-stores a set of standard air quality parameters and compares and analyzes the data returned by the first and second air detection modules. Using pre-set decision algorithms and logic rules, it determines whether the air conditioner should perform indoor cleaning or self-cleaning, providing decision support for intelligent operation. The control module serves as the execution center of the air conditioning system, receiving signals from the image recognition module and the decision-making module. Based on the number of users, the available cleanable space, and the cleaning operation, it precisely controls the opening and closing of the air outlets and the direction of air flow. It achieves different air flow modes by adjusting the motor drive and air duct switching mechanism. It also sends control commands to the high-voltage transformer to adjust the output voltage, thereby controlling the concentration of negative ion generators and ensuring the air conditioning system operates efficiently and on demand. The high-voltage transformer can accept 220V AC as input. It first passes through an EMC circuit to suppress electromagnetic interference, minimizing the impact on the power supply and equipment. The AC power is then converted to DC through a rectifier and filter circuit, where it removes ripple to produce a smooth DC power supply. The switching power supply circuit then stabilizes the output voltage and adjusts the power to provide an appropriate input for the transformer. The transformer then steps down the voltage, outputting a low voltage, such as 12V, for the high-voltage transformer and other circuits, ensuring safe and stable operation of the equipment.The MCU then transmits control signals to the transformer's switching circuit, which, in conjunction with the self-oscillating circuit, converts low voltage into a negative high-voltage output, such as -5kV. This creates the necessary conditions for subsequent ionization of the air and the generation of negative charges. Ultimately, these negative charges combine with oxygen to form negative oxygen ions, achieving the desired air purification effect. The negative ions generated by the release medium are then transported to their target location via the air supply module.

[0069] Among them, the first air detection module can integrate multiple sensors, such as PM2.5 sensors, VOC sensors, temperature and humidity sensors, etc., to monitor indoor parameters such as particulate matter concentration, harmful gas concentration, temperature and humidity in real time, and transmit the data to the first processing module. The second air detection module can install dust sensors, bacteria sensors and harmful gas sensors at key locations inside the air conditioner (such as the surface of the heat exchanger, inside the air duct), regularly detect the air quality inside the air conditioner, and transmit the data to the decision module. The control module can use a microcontroller (MCU) or a programmable logic controller (PLC) as the control core. By writing the corresponding control program, it receives signals from the image recognition module and the decision module, and outputs control instructions to the drive device of the air outlet and the control circuit of the high-voltage package. The air supply module can use a centrifugal fan or an axial fan, etc., and select the appropriate fan type and specifications according to the design requirements and air supply volume requirements of the air conditioner, and equip it with corresponding air ducts and regulating valves. The decision-making module can use a rule engine to make logical judgments based on preset air quality standards and decision-making rules. It can also use machine learning algorithms, such as decision trees and support vector machines, to train historical data, establish decision-making models, and achieve intelligent decision-making for cleaning operations. The negative ion generator consists of a high-voltage package and several release media. The high-voltage package boosts the input voltage and outputs it to the release medium. The release medium (such as carbon fiber, needle-shaped electrodes, etc.) ionizes the air under the action of a high-voltage electric field to produce negative ions. The appropriate high-voltage package type (such as a switching power supply type high-voltage package, a transformer type high-voltage package) and the release medium material and shape can be selected according to different application scenarios and performance requirements.

[0070] Preferably, the air conditioner further comprises an air inlet duct, wherein the end of the air inlet duct away from the interior of the air conditioner is provided with a first closable damper and a tube wall release medium array electrically connected to the high-voltage transformer is provided inside the air inlet duct;

[0071] When the air conditioner performs self-cleaning operation, it includes:

[0072] The control module controls the air conditioner to close the air supply port and the first closable damper, controls the high-voltage coil to release a first voltage to the tube wall release medium array to release negative ions, controls the air supply module to supply air to the air inlet duct, adjusts the duty cycle of the first voltage according to the detection result of the second air detection module, and controls the first closable damper to open when the air inlet duct is cleaned;

[0073] When the air conditioner performs an indoor cleaning operation, the control module switches the first closable damper of the air inlet duct to an adaptive opening state.

[0074] When the air conditioner performs a self-cleaning operation, the principle is to close the air supply port and the first closable damper to form a relatively closed space in the air inlet duct. At this time, the control module controls the high-voltage package to release the first voltage to the medium array on the pipe wall to generate negative ions. Under the action of the air supply module supplying air to the air inlet duct, the negative ions combine with pollutants such as dust and bacteria inside the air inlet duct, causing them to settle or be adsorbed, thereby achieving the purpose of cleaning the air inlet duct. At the same time, the second air detection module monitors the air quality inside the air inlet duct in real time, and adjusts the duty cycle of the first voltage according to the detection results to ensure that the negative ion concentration inside the air inlet duct achieves the best cleaning effect. When the air inlet duct is cleaned, the control module controls the first closable damper to open to restore normal air circulation.

[0075] When the air conditioner is performing indoor cleaning operations, the control module switches the first closable damper of the air inlet duct to an adaptive opening state. The air inlet duct now serves as the entrance to indoor air. Based on the indoor air quality and the air conditioner's operating mode, the damper's opening is adaptively adjusted to control the amount of air entering the air conditioner. This ensures effective purification of indoor air while avoiding issues such as poor purification results and energy waste caused by excessively large or small fixed damper openings.

[0076] In one embodiment, the air inlet duct of a certain model of air conditioner is 50 cm long and has an inner diameter of 10 cm. The wall-release medium array is composed of multiple carbon fiber electrodes evenly distributed on the inner wall of the air inlet duct. During self-cleaning operation, the control module first closes the air outlet and the first closable damper. It then controls the high-voltage transformer to output a first voltage to the wall-release medium array, with an initial voltage of negative 5 kilovolts and a duty cycle of 50%. While the air supply module delivers air to the air inlet duct at a rate of 5 cubic meters per minute, the second air detection module monitors the particle concentration inside the air inlet duct in real time. If the initial particle concentration is 100 μg / m3, the particle concentration gradually decreases as negative ions are released and air is delivered. When the particle concentration drops to 20 μg / m3, the control module adjusts the duty cycle of the first voltage to 30% based on the detection results to maintain a clean state inside the air inlet duct. After 30 minutes of cleaning, the concentration of particulate matter inside the air inlet duct stabilizes below 15 micrograms per cubic meter. The control module determines that the cleaning is completed and controls the first closable damper to open.

[0077] During indoor cleaning operations, assuming an indoor area of 30 square meters and a floor height of 2.5 meters, the control module switches the first closable damper of the air inlet duct to an adaptive opening state based on the number and distribution of users identified by the image recognition module and the set of indoor air quality parameters detected by the first air detection module. The initial damper opening is set to 50%. During air conditioning operation, the damper opening can be adaptively adjusted to a range of 30%-70% based on changes in indoor air quality and the air conditioning's purification needs. The air supply module adjusts the air supply volume between 30-60 cubic meters per minute based on the damper opening and indoor air quality to achieve effective purification of the indoor air. At the same time, the negative ion generator dynamically adjusts the release concentration of negative ions based on the set of indoor air quality parameters and the decision-making results of the decision module, ensuring that the negative ion concentration in the indoor air is maintained within the range of 2000-5000 per cubic centimeter to achieve optimal air purification.

[0078] Preferably, the air conditioner further comprises an air outlet duct, wherein the air outlet duct is provided with a second and a third closable air guide door at one end close to the interior of the air conditioner and at one end away from the interior of the air conditioner, respectively;

[0079] When the air conditioner performs self-cleaning operation, it includes:

[0080] The control module controls the high-voltage package to release a second voltage to the release medium to release negative ions, controls the third closable guide damper to close, opens the second closable guide damper, and the air supply module circulates air to the air inlet and outlet ducts. When the first closable damper is opened, the control module controls the second closable guide damper to close, and the control module controls the air conditioner to open the air supply port. After the first time length has passed, the control module controls the third closable guide damper to open, and after the second time length has passed, controls the second closable guide damper to open.

[0081] The air outlet duct is the pipe used by the air conditioner to discharge indoor exhaust air. When the air conditioner performs self-cleaning, it controls the opening and closing of the second and third closable guide dampers, allowing air to circulate between the inlet and outlet ducts, thereby cleansing the interior of the air conditioner with negative ions. Specifically, when the second closable guide damper is open and the third closable guide damper is closed, the air supply module drives air in from the inlet duct. After passing through the air conditioner, the air carrying negative ions combines with pollutants such as dust and bacteria, causing them to settle or be adsorbed, and then is discharged through the outlet duct. During this process, air circulates within the air conditioner, and the negative ions continue to exert their cleaning effect. When the first closable damper is opened, the second closable guide damper is closed and the air outlet is opened, returning the air conditioner to normal air supply mode, delivering cleaned air into the room. After a period of time, the third closable guide damper is opened to connect the interior of the air conditioner with the outdoor air, further discharging any remaining pollutants. Finally, the second closable guide damper is opened again to resume normal air circulation.

[0082] In one embodiment, when a certain air conditioner model performs a self-cleaning operation, the control module first controls the high-voltage coil to release a second voltage of -6kV to the release medium, generating a high concentration of negative ions. At this point, the third closable air guide damper closes, the second closable air guide damper opens, and the air supply module circulates air to the air inlet and outlet ducts at a volume of 40 cubic meters per minute. During this circulation process, the negative ions combine with pollutants such as dust and bacteria inside the air conditioner, causing them to settle or be adsorbed, thereby achieving a cleaning effect. After 10 minutes of circulation, the first closable air damper opens, completing the cleaning of the air inlet duct. At this point, the control module immediately closes the second closable air guide damper and controls the air conditioner to open the air outlet, supplying air to the room at a volume of 50 cubic meters per minute, delivering cleaned air into the room. Simultaneously, the control module starts a timer. After 5 minutes (the first time duration), the control module controls the third closable air guide damper to open, connecting the air inside the air conditioner with the outdoor air and further removing any remaining pollutants. After another 15 minutes (the second time period), the control module controls the second closable air guide damper to open, restoring normal air circulation and completing the self-cleaning operation. Throughout the entire process, when the two closable air guide dampers are closed, the negative ions fully exert their cleaning effect within the enclosed air conditioner interior, ensuring a clean interior.

[0083] Preferably, the air conditioner further comprises a time recording module, and the time recording module is data-connected with the decision module;

[0084] When the air conditioner performs a self-cleaning operation or an indoor cleaning operation, the time recording module records the corresponding operation type and execution time point and generates a cleaning time sequence log;

[0085] When the decision module detects that an indoor cleaning operation needs to be performed, it retrieves the most recent self-cleaning completion time T1 and indoor cleaning completion time T2 in the cleaning time series log;

[0086] The decision module calculates a first time difference ΔT1 between the current time and T1 and a second time difference ΔT2 between the current time and T2;

[0087] If ΔT1 exceeds the preset self-cleaning validity threshold and ΔT2 exceeds the preset indoor cleaning interval threshold, the decision module generates a compound instruction to perform the self-cleaning operation first and then the indoor cleaning operation;

[0088] The control module responds to the composite instruction, and after completing the opening action of the air outlet of the self-cleaning operation, delays the set protection time and then starts the negative ion release mode corresponding to the indoor cleaning operation.

[0089] When the air conditioner performs self-cleaning or indoor cleaning operations, the time recording module records the operation type and time point, generates a cleaning sequence log, and provides a time basis for the air conditioner's cleaning decision. When the decision module needs to perform an indoor cleaning operation, it retrieves the most recent self-cleaning completion time T1 and indoor cleaning completion time T2, and calculates the time difference ΔT1 and ΔT2 from the current time. If ΔT1 exceeds the preset self-cleaning validity threshold (such as 24 hours) and ΔT2 exceeds the preset indoor cleaning interval threshold (such as 4 hours), the decision module generates a compound instruction for self-cleaning first and then indoor cleaning. The control module responds to the instruction, and after completing the air outlet opening action of the self-cleaning operation, it delays the set protection time (such as 30 minutes) and then starts the negative ion release mode corresponding to the indoor cleaning operation to ensure that the interior of the air conditioner is cleaned before indoor cleaning, while avoiding damage to the equipment due to continuous operation.

[0090] The time recording module of an air conditioner records the time of the most recent self-cleaning operation as T1 = 2025-10-01 10:00:00, and the time of the most recent indoor cleaning operation as T2 = 2025-10-01 14:00:00. The current time is 2025-10-02 10:00:00, and the decision module calculates ΔT1 = 24 hours and ΔT2 = 20 hours. The preset self-cleaning threshold is 24 hours, and the indoor cleaning interval threshold is 4 hours. Because ΔT1 = 24 hours reaches the preset self-cleaning threshold, and ΔT2 = 20 hours exceeds the preset indoor cleaning interval threshold of 4 hours, the decision module generates a compound instruction to perform the self-cleaning operation first and then the indoor cleaning operation. The control module responds to this instruction and starts the self-cleaning operation. After completing the self-cleaning operation and executing the air outlet opening action, the control module delays the protection time setting for 30 minutes, and then starts the negative ion release mode corresponding to the indoor cleaning operation to ensure that the interior of the air conditioner is clean and the equipment is protected before indoor cleaning.

[0091] Preferably, in the decision module, a guide vane is provided at the air outlet, and performing the indoor cleaning operation when a user is present indoors includes:

[0092] The image recognition module generates a user location distribution map in real time and marks the current user activity area as a directional purification restricted area;

[0093] The control module controls the air supply module to start the avoidance air supply mechanism according to the spatial coordinates of the directional purification restricted area:

[0094] Adjust the guide vanes of the air outlet to form an airflow channel that is not opposite to the user activity area;

[0095] Controlling the high-voltage package to apply an inhibitory output voltage lower than the standard voltage to the release medium closest to the directional purification restriction area;

[0096] The first air detection module monitors the difference in particle concentration in each area in real time. When it detects that the concentration difference between areas exceeds the dynamic balance threshold:

[0097] The control module controls the high voltage to execute a voltage polarity alternating mode, so that adjacent release media produce an alternating ionization effect;

[0098] The control module controls the air supply module to generate an annular airflow field for the non-directional purification restricted area.

[0099] Specifically, the image recognition module generates a real-time user location distribution map, accurately identifies user activity areas and marks them as directional purification restricted areas. Combined with the coordinated control of the air supply module and the high-voltage transformer, avoidance air supply and precise purification are achieved. At the same time, the air detection module monitors air quality, and through the dynamic adjustment of the voltage polarity alternation mode and the annular airflow field, it ensures uniform indoor air purification and a comfortable user experience. Its principle is to use image recognition and multi-module linkage control to dynamically adjust the air supply direction, negative ion release concentration, and airflow organization according to the user's location and air quality conditions, achieving efficient and comfortable indoor air purification.

[0100] The user location distribution map, generated by the image recognition module, is a visual map containing user location information. It identifies users' specific locations and activity areas within the room, providing data support for the air purification avoidance mechanism. Targeted purification restricted zones are areas defined based on the user location distribution map to avoid direct airflow and excessive purification, thereby enhancing user comfort. Guide vanes are adjustable blades installed at the air outlet. Adjusting their angle changes the airflow direction, creating airflow paths that are not directed toward the user's activity area. The inhibitory output voltage is a special voltage value, lower than the standard voltage, applied to the release medium near the targeted purification restricted zone to reduce the concentration of negative ions released in that area and avoid user discomfort. The dynamic balance threshold is a preset maximum allowable difference in particulate matter concentration. When the concentration difference between zones exceeds this value, the system's self-regulation mechanism is triggered to ensure uniform indoor air quality. The voltage polarity alternation mode periodically switches the polarity of the high-voltage transformer output voltage, creating an alternating ionization effect in adjacent release media, enhancing purification effectiveness and preventing excessive ionization concentration. The annular airflow field is a special airflow organization form generated by the air supply module. It guides the air to form an annular flow in the non-directional purification restriction area, promoting uniform mixing and purification of indoor air.

[0101] In a certain air-conditioning operation scenario, there are two users indoors, located in the sofa area of the living room (coordinate range: x = 2-4 meters, y = 3-5 meters) and the dining table area (coordinate range: x = 6-8 meters, y = 1-3 meters). The image recognition module generates a user location distribution map and marks these two areas as directional purification restricted areas. The control module adjusts the angle of the air outlet guide vane to 30° according to the coordinates to form an air flow channel that avoids the above-mentioned areas, and at the same time applies an inhibitory output voltage (-4kV) that is 20% lower than the standard voltage (-5kV) to the release medium near these areas. The first air detection module detects that the difference in particulate matter concentration between the living room and the bedroom is as high as 20μg / m 3 , exceeding the dynamic equilibrium threshold of 15 μg / m 3 The control module then starts the voltage polarity alternating mode, causing adjacent release media to be alternately ionized every 2 seconds, and controls the air supply module to generate an annular airflow field in the non-directional purification restriction area, promoting air circulation and making the indoor air quality uniform.

[0102] Preferably, in the decision module, performing the indoor cleaning operation when there is no user indoors includes:

[0103] After the image recognition module confirms that there is no one, the decision module activates the global enhanced purification mode:

[0104] The control module opens the first closable damper of the air inlet duct to a maximum ventilation state;

[0105] The high-voltage package applies a periodic enhanced voltage to all released media simultaneously, and its voltage intensity is positively correlated with the operating intensity of the air supply module;

[0106] The second air detection module implements a safety monitoring mechanism:

[0107] Continuously detecting the gas composition inside the air conditioner, and when a preset safety threshold is detected, the second air detection module generates a voltage adjustment instruction;

[0108] The control module dynamically reduces the frequency of the high-voltage package output according to the voltage regulation instruction.

[0109] When there is no one indoors, the air conditioner's decision module activates the global enhanced purification mode after confirming the unmanned state through the image recognition module. At this time, the control module opens the first closable damper of the air inlet duct to the maximum ventilation state to increase the air flow and improve the purification efficiency. At the same time, the high-voltage package synchronously applies a periodic enhanced voltage to all release media. The voltage intensity is positively correlated with the operating intensity of the air supply module to enhance the release of negative ions and improve the purification effect. The second air detection module executes a safety monitoring mechanism to continuously detect the gas composition inside the air conditioner. When the preset safety critical value is detected, a voltage adjustment instruction is generated. The control module dynamically reduces the frequency of the high-voltage package output according to the instruction to ensure safety.

[0110] Among them, global enhanced purification mode is a special purification mode activated when no one is indoors. In this mode, the air conditioning system maximizes its purification capacity, increasing air volume and negative ion release concentration to provide comprehensive, high-intensity air purification throughout the entire indoor space, rapidly removing airborne pollutants. Maximum ventilation refers to the fully open state of the first closable damper in the air inlet duct. In this state, ventilation resistance in the air inlet duct is minimized, allowing air to enter the air conditioner at maximum flow rate, providing sufficient air volume for subsequent purification. Periodic boost voltage is a voltage whose intensity varies periodically over time. Its characteristic is that the voltage increases and decreases according to a specific periodic pattern. It can be linked to the operating intensity of the air supply module to achieve dynamic adjustment of negative ion release concentration and enhance purification effectiveness. The safety monitoring mechanism refers to the mechanism in which the second air detection module continuously monitors the air composition inside the air conditioner and automatically triggers protective measures when potential safety risks are detected. Its purpose is to ensure efficient purification while avoiding safety issues caused by abnormal internal air composition. Dynamic frequency reduction control is a control strategy that adjusts the output frequency of the high-voltage transformer in real time. When a safety risk is detected, the operating frequency of the high-voltage transformer is reduced, reducing its output power, thereby reducing the concentration of negative ions released, avoiding excessive production of harmful gases such as ozone, and ensuring the safety of air conditioning operation.

[0111] In one embodiment, in a certain model of air conditioner, when the image recognition module confirms that there is no one indoors, the decision module immediately activates the global enhanced purification mode. The control module opens the first closable damper of the air inlet duct to the maximum ventilation state. At this time, the damper opening is 100%, and the ventilation volume reaches 300 cubic meters per hour. At the same time, the high-voltage package synchronously applies a periodic enhanced voltage to all release media. The voltage intensity is set to negative 6 kilovolts, the period is 2 seconds, and it is positively correlated with the operating intensity of the air supply module (300 cubic meters per hour). The air conditioner begins to purify the indoor air with maximum efficiency.

[0112] During the purification process, the second air detection module continuously detects the gas composition inside the air conditioner, including the concentration of harmful gases such as ozone and sulfur dioxide. When it is detected that the ozone concentration reaches the preset safety critical value of 0.05ppm, the second air detection module immediately generates a voltage adjustment instruction. According to the instruction, the control module dynamically reduces the frequency of the high-voltage package output, reduces the output voltage of the high-voltage package to the release medium, thereby reducing the concentration of negative ions released, reducing ozone production, and ensuring the safety of air conditioning operation. After 30 minutes of full-area enhanced purification, the indoor particulate matter concentration dropped from the initial 100 micrograms / cubic meter to 15 micrograms / cubic meter, and the air was significantly purified.

[0113] Preferably, a guide vane is provided at the air outlet. The image recognition module is further used to identify the purifiable enclosed space, as well as the spatial attributes and opening direction of the purifiable enclosed space. When the image recognition module detects that there is no one in the room and there is an open purifiable enclosed space, the following steps are performed:

[0114] The control module drives the guide blades to rotate so that the air outlet direction and the opening direction of the purifiable enclosed space form a vertical spatial angle;

[0115] The control module controls the high-voltage package to activate the connection with the release medium toward the purifiable confined space, and increases the output voltage intensity according to the depth gradient of the target space;

[0116] The control module controls the air supply module to alternately generate high and low wind speed airflows according to a preset cycle, and the cycle length is dynamically adjusted according to the volume of the confined space that can be purified.

[0117] Specifically, when there is no one indoors and there is an open purifiable enclosed space, the air-conditioning system identifies the spatial attributes and opening direction of the space through the image recognition module. The control module drives the guide blades to rotate so that the air outlet direction and the opening direction of the purifiable enclosed space form a vertical spatial angle to optimize the way the airflow enters the enclosed space. At the same time, the control module activates the connection with the release medium facing the purifiable enclosed space, and increases the output voltage intensity according to the depth gradient of the target space to enhance the negative ion release effect. In addition, the control module also controls the air supply module to alternately generate high and low wind speed airflows according to a preset cycle. The length of the cycle is dynamically adjusted according to the volume of the purifiable enclosed space to ensure that the air is fully circulated and purified in the enclosed space.

[0118] Purifiable confined spaces refer to relatively enclosed areas in a room that require air purification, such as bookcases and wardrobes. These spaces are often poorly ventilated and prone to pollutant accumulation. When a user opens a bookcase door and forgets to close it, the air conditioning system's purification function can improve the air quality inside. Spatial attributes include the size, shape, and location of the purifiable confined space. This information is crucial for the air conditioning system to adjust the direction and intensity of air supply to ensure effective purification. The opening direction refers to the direction of the opening connecting the purifiable confined space to other areas of the room. Understanding the opening direction helps the air conditioning system precisely adjust the air supply direction to ensure effective airflow into the confined space. The vertical spatial angle refers to the angle between the air outlet direction and the opening direction of the purifiable confined space. Creating this vertical spatial angle optimizes airflow into the confined space and improves air purification efficiency. The target spatial depth gradient sets a voltage gradient based on the depth of the purifiable confined space. The greater the depth, the higher the required negative ion release intensity to ensure that negative ions penetrate deeply into the space for comprehensive purification. High and low wind speed airflows alternate through the air supply module to generate high and low wind speed airflows, alternating. This airflow pattern helps to form good air circulation in a confined space and improve the purification effect.

[0119] In a certain indoor environment, the air conditioner's image recognition module detects that no one is inside and identifies an open bookcase as a confined space suitable for purification. The bookcase's spatial attributes are: height 1.8 meters, width 1.2 meters, depth 0.6 meters, and opening toward the left side of the air conditioner. The control module rotates the guide vanes at the air outlet, adjusting the air outlet's direction of flow to a perpendicular spatial angle with the bookcase opening. This adjusts the air outlet's direction of flow to a 90-degree angle, optimizing airflow into the bookcase.

[0120] The control module activates the connection with the release medium toward the bookcase and increases the output voltage intensity according to the depth gradient of the target space. Specifically, the output voltage of the negative ion generator is gradually increased from the basic negative 5 kV to negative 6 kV to enhance the negative ion release effect and ensure that the negative ions can penetrate deep into the bookcase for purification.

[0121] At the same time, the control module controls the air supply module to alternate between high and low air speeds according to a preset cycle. Based on the bookcase's volume (approximately 1.296 cubic meters), the preset cycle duration is dynamically adjusted to 30 seconds: that is, every 30 seconds, high-speed airflow (wind speed of 5 meters / second) and low-speed airflow (wind speed of 2 meters / second) are alternately generated. The high-speed airflow is used to quickly deliver negative ions into the bookcase, while the low-speed airflow is used to maintain air circulation inside the bookcase, ensuring sufficient air purification.

[0122] Through this control strategy, the air conditioning system can effectively purify the air inside the bookcase, remove accumulated dust, odors and other pollutants, and improve the air quality of the entire indoor environment.

[0123] Preferably, the decision module includes:

[0124] When it is detected that at least two parameter items in the indoor air quality parameter set exceed the standard threshold of the standard air quality parameter set, and no parameter item in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, the decision module generates an indoor cleaning operation instruction;

[0125] When it is detected that at least one parameter in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, and no parameter item in the indoor air quality parameter set exceeds the standard threshold of the standard air quality parameter set, the decision module generates a self-cleaning operation instruction;

[0126] When parameters in both the indoor air quality parameter set and the air conditioner internal air quality parameter set exceed the standard:

[0127] The self-cleaning operation is performed first, and after the parameters in the air quality parameter set inside the air conditioner are restored to the corresponding standard threshold range, it automatically switches to the indoor cleaning operation.

[0128] Specifically, the air conditioner's decision module intelligently determines the air conditioner's operating mode based on a comparison of indoor and air conditioner-internal air quality parameters with standard thresholds, prioritizing human health and air conditioner performance. When at least two parameters in the indoor air quality parameter set exceed the standard, while the air conditioner's internal air quality does not, the decision module determines that the primary concern is indoor air pollution and requires immediate improvement of the indoor environment, thus generating an indoor cleaning instruction. Conversely, if at least one parameter in the air conditioner's internal air quality parameter set exceeds the standard, while the indoor air quality does not, the decision module determines that maintaining air conditioner performance and extending its service life are the top priorities, thus generating a self-cleaning instruction. If both air quality and internal air quality are simultaneously affected, the air conditioner system prioritizes self-cleaning, as contaminants inside the air conditioner can reduce its purification efficiency and even cause secondary pollution to the indoor air. Once the air conditioner's internal air quality returns to standard, the system switches to indoor cleaning, ensuring the air conditioner operates optimally for indoor purification and comprehensively safeguarding indoor air quality.

[0129] The system triggers the indoor cleaning command when indoor air quality falls below standard, while the air quality inside the air conditioner is acceptable. At this point, the air conditioner closes self-cleaning components, such as the first closable damper on the air inlet duct, opens the air outlet, and adjusts the direction of the guide vanes. The high-voltage coil drives the release medium at a set voltage, purifying the indoor air according to a preset pattern. The self-cleaning command triggers the system when the air quality inside the air conditioner falls below standard, while the indoor air quality is acceptable. The air conditioner closes the air outlet, opens the closable dampers on the air inlet and outlet ducts, and drives the release medium to clean the interior of the air conditioner, using circulating airflow and negative ions to remove internal pollutants. The standard air quality parameter set is a dataset containing multiple key air quality indicators and their corresponding standard thresholds. For example, the standard threshold for PM2.5 is set at 35 micrograms per cubic meter, and the standard threshold for carbon dioxide is 1000 ppm. Based on these standard thresholds, the air conditioning system conducts real-time assessment and comparison of indoor and air quality inside the air conditioner, providing the decision-making module with accurate air quality assessment criteria.

[0130] In one embodiment, it is assumed that the standard air quality parameter set stipulates that the PM2.5 standard threshold is 35 micrograms / cubic meter, the carbon dioxide standard threshold is 1000 ppm, and the bacterial concentration standard threshold is 500 cfu / m 3 During indoor cleaning, the indoor air quality parameter test results at a certain moment showed that PM2.5 was 45 micrograms / cubic meter, carbon dioxide was 1200ppm, and the bacterial concentration was 400cfu / m 3. All the air quality parameters inside the air conditioner are below the standard threshold. At this time, two of the indoor air quality parameters (PM2.5 and carbon dioxide) exceed the standard, and the decision module generates indoor cleaning operation instructions. The air conditioner closes the self-cleaning damper, opens the air supply port and adjusts the guide vanes to point to the indoor activity area. The high-voltage package drives the release medium at a voltage of -5kV to start indoor purification. During self-cleaning, the test results of the air quality parameters inside the air conditioner at a certain moment showed that the bacterial concentration was 600cfu / m 3 , PM2.5 and carbon dioxide concentrations are below the standard threshold. All indoor air quality parameters are qualified. At this time, the decision module generates a self-cleaning operation instruction. The air conditioner closes the air outlet, opens the air inlet and outlet duct dampers, and the high-voltage package drives the release medium at a voltage of -6kV, and the circulating air flow cleans the interior. When there are pollution scenes at the same time, at a certain moment, the indoor PM2.5 is 50 micrograms / cubic meter, and the bacterial concentration inside the air conditioner is 650cfu / m 3 At this time, both the indoor and air conditioner parameters are exceeded. The decision module generates self-cleaning operation instructions first, and the air conditioner performs self-cleaning first. Wait until the bacterial concentration inside the air conditioner drops to 450 cfu / m 3 (restored to the standard range), the air conditioner automatically switches to indoor cleaning operation.

[0131] A method for operating an air conditioner with a negative ion purification function, such as Figure 2 As shown, the working method is applied to the air conditioner with negative ion purification function as described above, and the working method includes the following steps:

[0132] S1: Detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner;

[0133] S2: Identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space;

[0134] S3: determining whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set, and the standard air quality parameter set;

[0135] S4: Control the opening and closing of the air outlet and the air supply direction according to the recognition result of the image recognition module and the decision result of the decision module, and send a control instruction to the high-voltage package to control the output voltage of the high-voltage package.

[0136] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0137] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An air conditioner with negative ion purification function, characterized in that: The air conditioner includes an air supply port, an image recognition module, a first air detection module, a second air detection module, a control module, an air supply module, a decision module and a negative ion generator; The negative ion generator includes a high-voltage package and several release media. The high-voltage package is used to output different voltages to different release media to provide the high-voltage electric field required for ionization. The release media are arranged at different positions of the air outlet. The air supply module is used to supply air to the room where the air conditioner is located or inside the air conditioner; The first air detection module is used to detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and the second air detection module is used to detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner; The image recognition module is used to identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space; The decision module is used to determine whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set and the standard air quality parameter set; The control module is used to control the opening and closing of the air outlet and the air supply direction according to the recognition results of the image recognition module and the decision results of the decision module, and send control instructions to the high-voltage package to control the output voltage of the high-voltage package.

2. The air conditioner with negative ion purification function according to claim 1, characterized in that: The air conditioner further comprises an air inlet pipe, wherein the end of the air inlet pipe away from the interior of the air conditioner is provided with a first closable damper and an array of pipe wall release medium electrically connected to the high-voltage transformer is provided inside the pipe; When the air conditioner performs self-cleaning operation, it includes: The control module controls the air conditioner to close the air supply port and the first closable damper, controls the high-voltage coil to release a first voltage to the tube wall release medium array to release negative ions, controls the air supply module to supply air to the air inlet duct, adjusts the duty cycle of the first voltage according to the detection result of the second air detection module, and controls the first closable damper to open when the air inlet duct is cleaned; When the air conditioner performs an indoor cleaning operation, the control module switches the first closable damper of the air inlet duct to an adaptive opening state.

3. The air conditioner with negative ion purification function according to claim 2, characterized in that: The air conditioner further comprises an air outlet duct, wherein the air outlet duct is provided with a second and a third closable air guide door at one end close to the interior of the air conditioner and at the other end away from the interior of the air conditioner, respectively; When the air conditioner performs self-cleaning operation, it includes: The control module controls the high-voltage package to release a second voltage to the release medium to release negative ions, controls the third closable guide damper to close, opens the second closable guide damper, and the air supply module circulates air to the air inlet and outlet ducts. When the first closable damper is opened, the control module controls the second closable guide damper to close, and the control module controls the air conditioner to open the air supply port. After the first time length has passed, the control module controls the third closable guide damper to open, and after the second time length has passed, controls the second closable guide damper to open.

4. The air conditioner with negative ion purification function according to claim 1, characterized in that: The air conditioner further comprises a time recording module, which is data-connected to the decision module; When the air conditioner performs a self-cleaning operation or an indoor cleaning operation, the time recording module records the corresponding operation type and execution time point and generates a cleaning time sequence log; When the decision module detects that an indoor cleaning operation needs to be performed, it retrieves the most recent self-cleaning completion time T1 and indoor cleaning completion time T2 in the cleaning time series log; The decision module calculates a first time difference ΔT1 between the current time and T1 and a second time difference ΔT2 between the current time and T2; If ΔT1 exceeds the preset self-cleaning validity threshold and ΔT2 exceeds the preset indoor cleaning interval threshold, the decision module generates a compound instruction to perform the self-cleaning operation first and then the indoor cleaning operation; The control module responds to the composite instruction, and after completing the opening action of the air outlet of the self-cleaning operation, delays the set protection time and then starts the negative ion release mode corresponding to the indoor cleaning operation.

5. The air conditioner with negative ion purification function according to claim 1, characterized in that: In the decision module, a guide vane is provided at the air outlet. When there is a user in the room, the indoor cleaning operation includes: The image recognition module generates a user location distribution map in real time and marks the current user activity area as a directional purification restricted area; The control module controls the air supply module to start the avoidance air supply mechanism according to the spatial coordinates of the directional purification restricted area: Adjust the guide vanes of the air outlet to form an airflow channel that is not opposite to the user activity area; Controlling the high-voltage package to apply an inhibitory output voltage lower than the standard voltage to the release medium closest to the directional purification restriction area; The first air detection module monitors the difference in particle concentration in each area in real time. When it detects that the concentration difference between areas exceeds the dynamic balance threshold: The control module controls the high voltage to execute a voltage polarity alternating mode, so that adjacent release media produce an alternating ionization effect; The control module controls the air supply module to generate an annular airflow field for the non-directional purification restricted area.

6. The air conditioner with negative ion purification function according to claim 2, characterized in that: In the decision module, performing indoor cleaning operations when there is no user indoors includes: After the image recognition module confirms that there is no one, the decision module activates the global enhanced purification mode: The control module opens the first closable damper of the air inlet duct to a maximum ventilation state; The high-voltage package applies a periodic enhanced voltage to all released media simultaneously, and its voltage intensity is positively correlated with the operating intensity of the air supply module; The second air detection module implements a safety monitoring mechanism: Continuously detecting the gas composition inside the air conditioner, and when a preset safety threshold is detected, the second air detection module generates a voltage adjustment instruction; The control module dynamically reduces the frequency of the high-voltage package output according to the voltage regulation instruction.

7. The air conditioner with negative ion purification function according to claim 1, characterized in that: The air outlet is equipped with a guide vane. The image recognition module is also used to identify the purifiable confined space, as well as the spatial attributes and opening direction of the purifiable confined space. When the image recognition module detects that there is no one in the room and the purifiable confined space is open, it includes: The control module drives the guide blades to rotate so that the air outlet direction and the opening direction of the purifiable enclosed space form a vertical spatial angle; The control module controls the high-voltage package to activate the connection with the release medium toward the purifiable confined space, and increases the output voltage intensity according to the depth gradient of the target space; The control module controls the air supply module to alternately generate high and low wind speed airflows according to a preset cycle, and the cycle length is dynamically adjusted according to the volume of the confined space that can be purified.

8. The air conditioner with negative ion purification function according to claim 1, characterized in that: In the decision module, including: When it is detected that at least two parameter items in the indoor air quality parameter set exceed the standard threshold of the standard air quality parameter set, and no parameter item in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, the decision module generates an indoor cleaning operation instruction; When it is detected that at least one parameter in the air quality parameter set inside the air conditioner exceeds the standard threshold of the standard air quality parameter set, and no parameter item in the indoor air quality parameter set exceeds the standard threshold of the standard air quality parameter set, the decision module generates a self-cleaning operation instruction; When parameters in both the indoor air quality parameter set and the air conditioner internal air quality parameter set exceed the standard: The self-cleaning operation is performed first, and after the parameters in the air quality parameter set inside the air conditioner are restored to the corresponding standard threshold range, it automatically switches to the indoor cleaning operation.

9. A method for operating an air conditioner with a negative ion purification function, characterized in that: The working method is applied to the air conditioner with negative ion purification function according to any one of claims 1 to 8, and the working method comprises the following steps: S1: Detect the room where the air conditioner is located to obtain a set of indoor air quality parameters, and detect the inside of the air conditioner to obtain a set of air quality parameters inside the air conditioner; S2: Identify the room where the air conditioner is located, identify the number of users, and determine whether there is a cleanable space; S3: determining whether the air conditioner performs an indoor cleaning operation and / or an air conditioner self-cleaning operation based on the indoor air quality parameter set, the air conditioner internal air quality parameter set, and the standard air quality parameter set; S4: Control the opening and closing of the air outlet and the air supply direction according to the recognition result of the image recognition module and the decision result of the decision module, and send a control instruction to the high-voltage package to control the output voltage of the high-voltage package.

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