A method for detecting leakage of air conditioner refrigerant

Abstract

The present invention discloses a method for detecting refrigerant leakage of an air conditioner, which belongs to the technical field of air conditioners and comprises the following steps: introducing the wind output by the air conditioner into a current balancing module for division, and respectively arranging a light transmitter and a first light receiver in the diversion channel of the current balancing module; before the air conditioner is started, turning on the light transmitter for T1 time, after the first light receiver receives the light emitted by the light transmitter, synchronizing the first light receiver to send a first signal to a controller, and calculating a first light intensity A based on the first signal; after the air conditioner is started and runs stably, turning on the light transmitter and if the first light receiver does not receive light after T1 time, it indicates that there is a refrigerant leakage problem in the air conditioner; the medium in the wind output by the air conditioner can be mixed by the provided current balancing module, so that the medium is more evenly distributed, which is beneficial to later detection.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a method for detecting leakage of air conditioning refrigerant. Background Art

[0002] In the air-conditioning industry, the application of flammable refrigerants is becoming more and more widespread, and their leakage safety issues are also receiving more and more attention.

[0003] Refrigerant leakage in air conditioning systems is one of the main causes of reduced air conditioning performance, increased energy consumption, and environmental pollution. While traditional refrigerant leak detection methods, such as visual inspection, soap bubble testing, gas differential pressure testing, electronic testing, and fluorescence testing, can detect refrigerant leaks to a certain extent, they suffer from low accuracy, complex operation, and high costs. Summary of the Invention

[0004] In order to solve the problems of the prior art, the present invention provides an air conditioning refrigerant leakage detection method, comprising the following steps:

[0005] Evenly distribute the air output from the air conditioner's outlet;

[0006] After the air conditioner is started, the air output by the air conditioner is introduced into the input end of the flow equalization module, so that the medium contained in the air output by the air conditioner is evenly dispersed in the flow equalization module;

[0007] Divide the wind flowing out of the flow balancing module:

[0008] The output end of the flow balancing module is connected to the input end of the flow splitting module. The flow splitting module has multiple flow splitting channels built in, which are used to split the wind entering the flow splitting module into multiple streams.

[0009] Detect the medium contained in the wind in the diversion channel;

[0010] A light emitter and a first light receiver are respectively provided on two opposite side walls of the diversion channel. The extending direction of the light emitted by the emitter is perpendicular to the moving direction of the wind. The first light receiver is connected to an external controller.

[0011] Before the air conditioner is started, after the light transmitter is turned on for T1 time, the first light receiver receives the light emitted by the light transmitter, and the first light receiver is synchronized to send a first signal to the controller. After receiving the first signal, the controller calculates the first light intensity A based on the first signal;

[0012] After the air conditioner starts and runs stably, turn on the light transmitter. If the first light receiver does not receive light after T1 time, it means that there is a refrigerant leakage problem in the air conditioner;

[0013] Or, after T1 time, the first light receiver receives light and sends a second signal to the controller. After receiving the second signal, the controller calculates the second light intensity A based on the second signal. If the first light intensity A≠the second light intensity A, it indicates that there is a leak in the air conditioning refrigerant.

[0014] Furthermore, the current balancing module includes: a current balancing channel, a current balancing plate and a spoiler;

[0015] When in use, one end of the flow balancing channel is connected to the air outlet of the air conditioner, and the other end of the flow balancing channel is connected to one end of the diversion module;

[0016] The spoiler and the flow equalizing plate are both arranged inside the flow equalizing channel, and the spoiler is arranged close to one end of the flow equalizing channel;

[0017] The circumference of the spoiler is sealed with the inner wall of the flow balancing channel, and a plurality of fans are provided on the spoiler;

[0018] There are multiple flow equalizing plates, which are spaced apart and arranged between the spoiler and the other end of the flow equalizing channel;

[0019] According to the direction of wind movement, the two sides and the top of the first flow equalizing plate are sealed with the inner wall of the flow equalizing channel, the two sides and the bottom of the second flow equalizing plate are sealed with the inner wall of the flow equalizing channel, and so on. The internal space of the flow equalizing channel is divided into continuous S-shaped channels by the flow equalizing plates.

[0020] Furthermore, a plurality of grooves of different depths and shapes are provided on the surface of the current equalizing plate.

[0021] Furthermore, the diverter module at least includes: a first diverter, a second diverter and a third diverter;

[0022] The first flow splitter, the second flow splitter and the third flow splitter are all rectangular structures with a hollow interior and open ends;

[0023] The number of diversion channels provided in the first diverter is at least 4, the number of diversion channels provided in the second diverter is twice that of the diversion channels provided in the first diverter, and the number of diversion channels provided in the third diverter is twice that of the diversion channels provided in the second diverter;

[0024] The size of a single diverter channel in the first diverter is twice the size of a single diverter channel in the second diverter channel, and the size of a single diverter channel in the second diverter channel is twice the size of a single diverter channel in the third diverter channel;

[0025] One end of the first diverter is connected to the other end of the flow equalizing channel, the other end of the first diverter is connected to one end of the second diverter, and the other end of the second diverter is connected to one end of the third diverter. The light emitter and the first light receiver are respectively provided on the inner wall of the diverter channel in the third diverter in opposite positions.

[0026] Furthermore, a temperature probe is provided on the inner wall of the diversion channel in the second diverter, and the temperature probe is connected to the controller;

[0027] When obtaining the second light intensity A, the corresponding relevant light data is selected with reference to the data obtained by the temperature probe. By obtaining the temperature data of each probe, the maximum and minimum values ​​in the temperature data are removed, and then the average value of the remaining temperature data is calculated to finally obtain the average temperature value. The diversion channels corresponding to at least 3 temperature data closest to the average temperature value are selected from the temperature data, and then the light data on the diversion channels on the third diverter corresponding to the selected three diversion channels are obtained. Then, the second light intensity A is calculated based on the selected light data, and the second light intensity A is compared with the first light intensity A.

[0028] Furthermore, a second light receiver is provided in the diversion channel on the third diverter, and the second light receiver is located on the inner wall of the flow channel between the first light receiver and the light transmitter. After the air conditioner is started and the operation is stable, the light transmitter is started, and after a time T1 has passed, when the first light receiver and the second light receiver receive light, they respectively send signals to the controller, and the controller calculates the first light intensity B and the second light intensity B based on the signals sent by the first light receiver and the second light receiver respectively.

[0029] If the first light intensity B=the first light intensity A, it indicates that there is no leakage of the air-conditioning refrigerant; otherwise, there is leakage of the air-conditioning refrigerant; or, if the first light intensity B≤the second light intensity B, it indicates that there is leakage of the air-conditioning refrigerant.

[0030] Furthermore, if the air conditioner starts and runs stably, the light transmitter is started. When the second light receiver receives light, it synchronously sends a signal to the controller. The signal received by the controller is calculated to obtain the second light intensity C. If the second light intensity C ≠ the second light intensity B, it indicates that there is a refrigerant leakage problem in the air conditioner.

[0031] Furthermore, when selecting relevant lighting data based on the temperature probe data, after the air conditioner is started, the temperature of the air conditioner is set for the first time based on the current ambient temperature, so that the set temperature of the air conditioner is the same as the ambient temperature. This can avoid heat exchange with the external environment when the wind flows in the diversion module, causing excessive temperature changes, which increases the difficulty of selecting temperature data when making judgments based on the temperature data detected by the temperature probe, thereby affecting the selection of lighting data in the third diverter.

[0032] Furthermore, a temperature sensor and a temperature recognition area are provided in the current environment;

[0033] The temperature sensor is used to detect the temperature of the current environment and simultaneously send a signal to the controller. The controller determines whether the current environment temperature is within the temperature recognition zone within a set period based on the received signal;

[0034] The air conditioner is pre-set to a second temperature, and then the temperature sensor and the temperature recognition area are activated to operate. The second temperature setting of the air conditioner is set after the temperature data in the second diverter is collected. The second temperature setting of the air conditioner and the current ambient temperature retain a temperature interval. The range of the temperature interval is the temperature range formed by the current ambient temperature and the second temperature setting.

[0035] The temperature identification zone divides the temperature interval into a plurality of intervals, the intervals including at least a first temperature identification zone, a second temperature identification zone, and a third temperature identification zone, wherein the absolute values ​​of the temperature ranges of the first temperature identification zone, the second temperature identification zone, and the third temperature identification zone decrease in sequence;

[0036] The first temperature recognition zone ranges from A°C to B°C, the second temperature recognition zone ranges from B°C to C°C, and the third temperature recognition zone ranges from C°C to D°C, wherein A°C is the same as the current ambient temperature, and D°C is the same as the second temperature set for the air conditioner;

[0037] After the air conditioner is started after the second temperature setting, the sensor detects the current ambient temperature within the set period and sends the detection result to the controller. The controller calculates the current temperature and determines whether the current temperature is in the set temperature identification zone. If the current temperature falls into different temperature identification zones within the set period, it indicates that the air conditioner is operating normally. At the same time, the controller can reduce the output of the air conditioner according to the current ambient temperature.

[0038] Furthermore, the temperature sensor detects the current ambient temperature in real time, and controls the channel size of the diversion channel based on the ambient temperature controller. When the ambient temperature is close to the air-conditioning output temperature detected by the temperature probe, the channel size of the diversion channel is at its minimum.

[0039] Beneficial effects of the present invention:

[0040] The flow balancing module can be used to mix the medium in the air output by the air conditioner, so that the medium is more evenly distributed, which is beneficial for later detection. At the same time, a diversion channel is set in the flow balancing module to divide the wind into multiple streams, and each diversion channel is provided with a corresponding light transmitter and light receiver, so that a comprehensive detection of the light intensity in each diversion channel can be carried out, and then the relevant light data in the diversion channel with the smallest difference is selected, so that if there is a refrigerant leak, the waves in the light will be refracted, thereby reducing the light intensity. By using this principle, it is possible to accurately determine whether the refrigerant of the air conditioner is leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the exploded structure of the current sharing module provided by the present invention;

[0042] Figure 2 A schematic diagram of the internal connection structure of the flow-sharing channel provided by the present invention;

[0043] Figure 3 A schematic diagram of the connection structure of the optical receiver and optical transmitter provided by the present invention;

[0044] Figure 4 This is a schematic diagram of the refrigerant leakage detection process provided by the present invention.

[0045] Reference numerals:

[0046] In the figure: 1 is the flow equalizing channel, 2 is the flow equalizing plate, 3 is the spoiler, 4 is the fan, 5 is the first diverter, 6 is the second diverter, 7 is the third diverter, 8 is the diversion channel, 9 is the optical transmitter, 10 is the first optical receiver, 11 is the second optical receiver, and 12 is the temperature probe. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] See also Figure 1-4 The present invention provides a method for detecting air conditioner refrigerant leakage, the method comprising the following steps:

[0049] Evenly distribute the air output from the air conditioner's outlet;

[0050] After the air conditioner is started, the air output by the air conditioner is introduced into the input end of the flow equalization module, so that the medium contained in the air output by the air conditioner is evenly dispersed in the flow equalization module;

[0051] Divide the wind flowing out of the flow balancing module:

[0052] The output end of the flow balancing module is connected to the input end of the flow splitting module. The flow splitting module is equipped with a plurality of flow splitting channels 8 for splitting the wind entering the flow splitting module into multiple streams.

[0053] Detecting the medium contained in the wind in the diversion channel 8;

[0054] A light emitter 9 and a first light receiver 10 are respectively provided on opposite side walls of the diversion channel 8. The extension direction of the light emitted by the light emitter 9 is perpendicular to the direction of movement of the wind. The first light receiver 10 is connected to an external controller. The extension direction of the wind is parallel to the channel direction of the diversion channel, that is, the wind is pushed forward along the diversion channel. The first light receiver and the light emitter are symmetrically arranged on the side walls of the diversion channel. The extension direction of the light emitted by the light emitter is perpendicular to the direction of the wind and is also perpendicular to the extension direction of the diversion channel.

[0055] Before the air conditioner is started, after the light transmitter 9 is turned on for a time period of T1, the first light receiver 10 receives the light emitted by the light transmitter 9, and the first light receiver 10 is synchronized to send a first signal to the controller. After receiving the first signal, the controller calculates the first light intensity A based on the first signal.

[0056] After the air conditioner starts and runs stably (at least half an hour), turn on the light transmitter 9. If the first light receiver 10 does not receive light after T1 time, it indicates that there is a refrigerant leakage problem in the air conditioner. If the first light receiver does not receive light, it proves that the refrigerant leakage is serious, and the refrigerant refracts the light to the maximum, so that the light cannot pass through the refrigerant and be received by the first light receiver. If the first light receiver can receive light, there are two situations, one is that the refrigerant leakage is not serious, and the other is that the refrigerant has not leaked. Therefore, it can be determined by comparing the light intensity. In addition, the first light receiver is mainly used to measure the intensity of the light emitted by the light transmitter. The first light receiver can directly use an existing light intensity meter or illuminance meter. This instrument is used to measure the intensity of the lighting source. It captures the light intensity radiated by the light source through a photosensitive element and converts it into an electrical signal for measurement. In the process of the light transmitter emitting light, the light will be diffusely reflected, but it will not affect the main propagation along a straight line to be received by the first light receiver.

[0057] Or, after T1 time, the first light receiver 10 receives light and sends a second signal to the controller. After receiving the second signal, the controller calculates the second light intensity A based on the second signal. If the first light intensity A≠the second light intensity A, it indicates that there is a leak in the air conditioning refrigerant.

[0058] Among them, by pre-calculating under normal conditions, when the light is transmitted to the first light receiver after the light transmitter is started, the first light receiver sends relevant data to the controller, and the controller calculates the reference light intensity (i.e., the first light intensity A), and compares the reference light intensity with the light intensity (i.e., the second light intensity A) calculated in real time after the air conditioner is turned on and running stably. If the second light intensity A is greater than the first light intensity A, it proves that there is refrigerant in the wind output by the air conditioner. Due to the refrigerant refraction and reflection of light, the intensity of light transmitted to the first light receiver is weakened. In this way, it is possible to judge whether the refrigerant has leaked based on the change in light intensity.

[0059] In addition, in order to avoid uneven distribution caused by refrigerant leakage and affect detection, a flow equalization module is set to evenly distribute the medium (refrigerant) contained in the air output by the air conditioner, so that the refrigerant can be detected more accurately and easily in subsequent detection.

[0060] In some embodiments, the flow balancing module includes: a flow balancing channel 1, a flow balancing plate 2 and a spoiler 3;

[0061] When in use, one end of the flow-sharing channel 1 is connected to the air outlet of the air conditioner, and the other end of the flow-sharing channel 1 is connected to one end of the diversion module;

[0062] The spoiler 3 and the flow equalizing plate 2 are both arranged inside the flow equalizing channel 1, and the spoiler 3 is arranged close to one end of the flow equalizing channel 1;

[0063] The surface of the flow balancing plate 2 is provided with a plurality of grooves of different depths and shapes.

[0064] The circumference of the spoiler 3 is sealed with the inner wall of the flow balancing channel 1, and a plurality of fans 4 are provided on the spoiler 3;

[0065] There are multiple equalizing plates 2, which are spaced apart between the spoiler 3 and the other end of the equalizing channel 1.

[0066] According to the direction of wind movement, the two sides and the top of the first flow equalizing plate 2 are sealed with the inner wall of the flow equalizing channel 1, the two sides and the bottom of the second flow equalizing plate 2 are sealed with the inner wall of the flow equalizing channel 1, and so on. The internal space of the flow equalizing channel 1 is divided into a continuous S-shaped channel by the flow equalizing plate 2.

[0067] Among them, the flow balancing module has a uniform distribution effect on the medium contained in the wind output by the air conditioner. Specifically, when the wind flows out from the air outlet of the air conditioner, it is first concentrated in front of the spoiler, and then under the action of pressure, the wind pushes the fan to rotate, and the wind enters the flow balancing channel along the gap between the fan and the spoiler. Since a maze-like flow balancing plate is provided in the flow balancing channel, the wind slows down under the action of the flow balancing plate and propels forward in a continuous S shape. During the propulsion process, since grooves of different depths and shapes are provided on the flow balancing plate, the direction of the wind can be changed at any time, and then under the action of the flow balancing plate and the grooves, a stirring effect is performed on the medium in the wind, so that the medium is evenly distributed in the wind.

[0068] In some embodiments, the diverter module includes at least: a first diverter 5, a second diverter 6 and a third diverter 7;

[0069] The first diverter 5, the second diverter 6 and the third diverter 7 are all rectangular structures with a hollow interior and open ends;

[0070] The number of diverter channels 8 provided inside the first diverter 5 is at least 4, the number of diverter channels 8 provided inside the second diverter 6 is twice the number of diverter channels 8 provided inside the first diverter 5, and the number of diverter channels 8 provided inside the third diverter 7 is twice the number of diverter channels 8 provided inside the second diverter 6;

[0071] The size of a single diverter channel 8 in the first diverter 5 is twice the size of a single diverter channel 8 in the second diverter 6, and the size of a single diverter channel 8 in the second diverter 6 is twice the size of a single diverter channel 8 in the third diverter 7;

[0072] One end of the first diverter 5 is connected to the other end of the flow equalizing channel 1, the other end of the first diverter 5 is connected to one end of the second diverter 6, the other end of the second diverter 6 is connected to one end of the third diverter 7, and the light transmitter 9 and the first light receiver 10 are respectively provided on the inner wall of the diverter channel 8 in the third diverter 7 in opposite positions.

[0073] Among them, when the wind flows out from the equal flow channel, it is pushed forward in the form of a stream of wind. In order to more accurately detect whether there is refrigerant in the wind later, the wind is divided into multiple streams through the diversion module. Specifically, when the wind enters the first diverter, due to the action of the diversion channel, the wind is divided into 4 streams of wind and pushed forward, and then enters the second diverter. Since the diversion channel in the second diverter is twice that in the first diverter, the wind is divided into 8 streams and pushed forward. At the same time, after entering the third diverter, the wind is divided into 16 streams. At this time, a light transmitter and a light receiver are provided in the diversion channel corresponding to each stream of wind. Therefore, the light intensity calculated when the wind passes through the 16 diversion channels can be obtained. Based on this light intensity, it can be compared with the first light intensity A to determine whether there is a refrigerant leak.

[0074] The function of the diversion module is to divide the wind into multiple winds with smaller areas, thereby dividing the medium in the wind into multiple blocks. In this way, when performing the light intensity calculation later, multiple detection data can be obtained, so that more accurate data can be selected for the calculation of light intensity. If the wind is not divided, there may be a large area of ​​wind. When passing through the light emitter, the area of ​​contact between the light and the medium in the wind is small when passing through the wind, so the data obtained is inaccurate, and the amount of data obtained is too small to accurately judge the refrigerant leakage.

[0075] In some embodiments, a temperature probe 12 is provided on the inner wall of the diversion channel 8 in the second diverter 6, and the temperature probe 12 is connected to the controller;

[0076] When obtaining the second light intensity A, the corresponding relevant light data is selected with reference to the data obtained by the temperature probe 12. By obtaining the temperature data of each probe, removing the maximum and minimum values ​​in the temperature data, and then calculating the average value of the remaining temperature data, the average temperature value is finally obtained. The diversion channels 8 corresponding to at least 3 temperature data closest to the average temperature value are selected from the temperature data, and then the light data on the diversion channels 8 on the third diverter 7 corresponding to the three selected diversion channels 8 are obtained. Then, the second light intensity A is calculated based on the selected light data, and the second light intensity A is compared with the first light intensity A.

[0077] In order to accurately select the light data detected during the operation of the air conditioner, a temperature probe is set in the diversion channel of the second diverter. When the air flows through the second diverter, the temperature probe obtains the temperature data in each diversion channel. The diversion channel where each temperature data is located corresponds to the two diversion channels on the third diverter. Therefore, the maximum temperature value and the minimum temperature value can be eliminated from the obtained temperature data, and the average value of the remaining temperature data can be calculated. According to the average value, at least three diversion channels on the second diverter corresponding to the temperature data closest to it are selected. Based on the selected three diversion channels on the second diverter, the light data in the six diversion channels on the third diverter are correspondingly obtained. The light intensity is calculated based on the six light data. Using the method of selecting temperature data, the six light data are screened, the maximum and minimum values ​​are eliminated, and then the average light intensity is calculated. The average light intensity (i.e., the second light intensity A) is compared with the first light intensity A, so as to accurately determine whether the refrigerant leaks.

[0078] In some embodiments, a second light receiver 11 is provided in the diversion channel 8 on the third diverter 7. The second light receiver 11 is located on the inner wall of the flow channel between the first light receiver 10 and the light emitter 9. After the air conditioner is started and the operation is stable (at least half an hour), the light emitter 9 is started. After the time T1 has passed, when the first light receiver 10 and the second light receiver 11 receive light, they respectively send relevant signals to the controller. The controller calculates the first light intensity B and the second light intensity B based on the signals sent by the first light receiver 10 and the second light receiver 11.

[0079] If the first light intensity B = the first light intensity A, it indicates that there is no leakage of the air-conditioning refrigerant; otherwise, there is a leakage of the air-conditioning refrigerant; or, if the first light intensity B ≤ the second light intensity B, it indicates that there is a leakage of the air-conditioning refrigerant;

[0080] If the air conditioner starts and runs stably (at least half an hour), after T1 time has passed, the light emitter 9 is turned on, and after the second light receiver 11 receives the light, it synchronously sends a relevant signal to the controller. The controller calculates the second light intensity C based on the sent relevant signal. If the second light intensity C ≠ the second light intensity B, it indicates that there is a refrigerant leakage problem in the air conditioner.

[0081] Among them, when the leaked refrigerant is small, accurate judgment cannot be made by referring to the first light intensity and the second light intensity B. In order to increase the judgment accuracy, a second light receiver is set. Multi-path judgment based on the second light intensity B calculated by the second light receiver can more accurately determine whether a refrigerant leakage occurs.

[0082] When the refrigerant leakage is small, due to the errors between the components, the refrigerant leakage is small, and the light refracted by the refrigerant is small, so the data received by the first light receiver has a small deviation from the data when the refrigerant has not leaked. If the deviation is within the error range of the component itself, it is not easy to determine the refrigerant leakage. At this time, the light refracted by the refrigerant can be calculated by the second light receiver, and the corresponding second light intensity C can be calculated. The second light intensity C is compared with the second light intensity B. At this time, the second light intensity B (equivalent to the reference light intensity) is used for comparison to accurately obtain the refrigerant leakage situation.

[0083] In some embodiments, when selecting relevant lighting data based on temperature probe data, after the air conditioner is started, the first temperature of the air conditioner is set based on the current ambient temperature, so that the set temperature of the air conditioner is the same as the ambient temperature. This can avoid heat exchange with the external environment when the wind flows in the diversion module, causing excessive temperature changes, which increases the difficulty of selecting temperature data when making judgments based on the data detected by the temperature probe, thereby affecting the selection of lighting data in the third diverter.

[0084] In some embodiments, a temperature sensor and a temperature recognition area are provided in the current environment;

[0085] The temperature sensor is used to detect the temperature of the current environment and simultaneously send a signal to the controller. The controller determines whether the current environment temperature is within the temperature recognition zone within a set period based on the received signal;

[0086] The air conditioner is pre-set to a second temperature, and then the temperature sensor and the temperature recognition area are activated to operate. The second temperature setting of the air conditioner is set after the temperature data in the second diverter is collected. The second temperature setting of the air conditioner and the current ambient temperature retain a temperature interval. The range of the temperature interval is the temperature range formed by the current ambient temperature and the second temperature setting.

[0087] The temperature identification zone divides the temperature interval into a plurality of intervals, the intervals including at least a first temperature identification zone, a second temperature identification zone, and a third temperature identification zone, wherein the absolute values ​​of the temperature ranges of the first temperature identification zone, the second temperature identification zone, and the third temperature identification zone decrease in sequence;

[0088] The first temperature identification zone ranges from A°C to B°C, the second temperature identification zone ranges from B°C to C°C, and the third temperature identification zone ranges from C°C to D°C. A°C is the same as the current ambient temperature, and D°C is the average temperature value of the temperature data within the second diverter obtained by the temperature probe. The significance of selecting the average temperature value for D°C is that after an air conditioner has been running for a long time, due to aging of various components, the set temperature of the air conditioner and the actual output temperature may differ. Therefore, in order to accurately divide the temperature identification zones, the average temperature value is selected for D°C.

[0089] After the air conditioner is started after the second temperature setting, the sensor detects the current ambient temperature within the set period and sends the detection result to the controller. The controller calculates the current temperature and determines whether the current temperature is in the set temperature identification zone. If the current temperature falls into different temperature identification zones within the set period, it indicates that the air conditioner is operating normally. At the same time, the controller can reduce the output of the air conditioner according to the current ambient temperature.

[0090] Among them, under normal air conditioning conditions, at the same ambient temperature, after setting the same temperature as above, obtain the difference between the ambient temperature corresponding to each in T, 2T and 3T and the average temperature of the second temperature probe in the second diverter, and compare the two differences under the normal air conditioning state and the uncertain air conditioning state, as well as the two times t when the ambient temperature is stable. If the first difference and the second difference are the same, and the first time t and the second time t are the same, then the air conditioning refrigerant is not leaking, otherwise the air conditioning is leaking.

[0091] Among them, when the air conditioner is in normal state, the temperature of the air outlet of the air conditioner is the same as the temperature inside the diverter. However, when the state of the air conditioner is uncertain, if the temperature data is obtained from the air outlet of the air conditioner, there will be a large difference in the temperature data obtained by adjacent temperature probes, which will lead to inaccurate average temperature. When the temperature data is obtained from the second diverter, the wind in the first diverter and the second diverter will evenly mix the media in the diverter, and the temperature difference between the adjacent temperature probes obtained will be smaller, and the actual average temperature obtained will be more in line with the current output temperature of the air conditioner.

[0092] In some embodiments, the temperature sensor detects the current ambient temperature in real time, and controls the channel size of the diversion channel based on the ambient temperature controller. When the ambient temperature is close to the air conditioner output temperature detected by the temperature probe, the channel size of the diversion channel is at its minimum.

[0093] Among them, the size change of the diversion channel can be achieved by arranging blades in the diversion channel, specifically by arranging a rotating shaft in the diversion channel, the blades are fixedly connected to the rotating shaft, the two ends of the rotating shaft are arranged through the diverter, and gears are provided on the rotating shaft outside the diverter. The gears are engaged with racks, and the racks are connected to the output end of the electric telescopic rod, the electric telescopic rod is connected to the outer wall of the diverter, and the electric telescopic rod is connected to the controller. The controller can control the movement of the electric telescopic rod, thereby controlling the rotation of the blades, wherein the rotating shaft is located on the first diverter.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for detecting air conditioning refrigerant leakage, characterized in that: The following steps are involved: Evenly distribute the air output from the air conditioner's outlet; After the air conditioner is started, the air output by the air conditioner is introduced into the input end of the flow equalization module, so that the medium contained in the air output by the air conditioner is evenly dispersed in the flow equalization module; The current balancing module includes: a current balancing channel, a current balancing plate and a spoiler; When in use, one end of the flow balancing channel is connected to the air outlet of the air conditioner, and the other end of the flow balancing channel is connected to one end of the diversion module; The spoiler and the flow equalizing plate are both arranged inside the flow equalizing channel, and the spoiler is arranged close to one end of the flow equalizing channel; The circumference of the spoiler is sealed with the inner wall of the flow balancing channel, and a plurality of fans are provided on the spoiler; There are multiple flow equalizing plates, which are spaced apart and arranged between the spoiler and the other end of the flow equalizing channel; The surface of the flow equalizing plate is provided with a plurality of grooves of different depths and shapes; According to the direction of wind movement, the two sides and the top of the first flow equalizing plate are sealedly connected to the inner wall of the flow equalizing channel, the two sides and the bottom of the second flow equalizing plate are sealedly connected to the inner wall of the flow equalizing channel, and so on, and the internal space of the flow equalizing channel is divided into continuous S-shaped channels by the flow equalizing plates; Divide the wind flowing out of the flow balancing module; The output end of the flow balancing module is connected to the input end of the flow splitting module. The flow splitting module is provided with a plurality of flow splitting channels for splitting the wind entering the flow splitting module into multiple streams. Detect the medium contained in the wind in the diversion channel; The diverter module at least includes: a first diverter, a second diverter and a third diverter; The first flow splitter, the second flow splitter and the third flow splitter are all rectangular structures with a hollow interior and open ends; The number of diversion channels provided in the first diverter is at least 4, the number of diversion channels provided in the second diverter is twice that of the diversion channels provided in the first diverter, and the number of diversion channels provided in the third diverter is twice that of the diversion channels provided in the second diverter; The size of a single diverter channel in the first diverter is twice the size of a single diverter channel in the second diverter channel, and the size of a single diverter channel in the second diverter channel is twice the size of a single diverter channel in the third diverter channel; One end of the first splitter is connected to the other end of the flow-sharing channel, the other end of the first splitter is connected to one end of the second splitter, and the other end of the second splitter is connected to one end of the third splitter. An optical transmitter and a first optical receiver are provided on the inner wall of the splitting channel in the third splitter, respectively, and are positioned opposite to each other. The extending direction of the light emitted by the transmitter is perpendicular to the moving direction of the wind, and the first light receiver is connected to the external controller; Before the air conditioner is started, after the light transmitter is turned on for T1 time, the first light receiver receives the light emitted by the light transmitter, and the first light receiver is synchronized to send a first signal to the controller. After receiving the first signal, the controller calculates the first light intensity based on the first signal; After T1 time, the first light receiver receives light and sends a second signal to the controller. After receiving the second signal, the controller calculates the second light intensity based on the second signal. If the first light intensity ≠ the second light intensity, it indicates that there is a refrigerant leak in the air conditioner; A temperature probe is provided on the inner wall of the diversion channel in the second diverter, and the temperature probe is connected to the controller; When obtaining the second light intensity, corresponding relevant light data is selected with reference to the data obtained by the temperature probe, the temperature data of each probe is obtained, the maximum and minimum values ​​in the temperature data are removed, and then the remaining temperature data are averaged to finally obtain an average temperature value, the diversion channels corresponding to at least three temperature data closest to the average temperature value are selected from the temperature data, and then light data on the diversion channels on the third diverter corresponding to the three selected diversion channels are obtained, and then the second light intensity is calculated based on the selected light data, and then the second light intensity is compared with the first light intensity; When selecting relevant illumination data based on temperature probe data, after the air conditioner is started, the temperature of the air conditioner is set based on the current ambient temperature so that the set temperature of the air conditioner is the same as the ambient temperature. This can avoid heat exchange between the air and the external environment when the air flows through the diversion module, which causes excessive temperature changes. This increases the difficulty of selecting temperature data when making judgments based on the temperature data detected by the temperature probe, thereby affecting the selection of illumination data in the third diverter. The current environment is equipped with temperature sensors and temperature recognition areas; The temperature sensor is used to detect the temperature of the current environment and simultaneously send a signal to the controller. The controller determines whether the current environment temperature is within the temperature recognition zone within a set period based on the received signal; The temperature sensor and the temperature recognition area both operate after the air conditioner performs a second temperature setting, the second temperature setting of the air conditioner is set after the temperature data in the second diverter is collected, and the second temperature setting of the air conditioner and the current ambient temperature retain a temperature interval, and the range of the temperature interval is the temperature range formed by the current ambient temperature and the second set air conditioner temperature; The temperature identification zone divides the temperature interval into a plurality of intervals, the intervals including at least a first temperature identification zone, a second temperature identification zone, and a third temperature identification zone, wherein the absolute values ​​of the temperature ranges of the first temperature identification zone, the second temperature identification zone, and the third temperature identification zone decrease in sequence; The temperature range of the first temperature recognition zone is A°C-B°C, the temperature range of the second temperature recognition zone is B°C-C°C, and the temperature range of the third temperature recognition zone is C°C-D°C, wherein A°C is the same as the current ambient temperature, and D°C is the same as the second set air-conditioning temperature; When the air conditioner is started according to the second set air conditioning temperature, the sensor detects the current ambient temperature within the set period and sends the detection result to the controller. The controller calculates the current temperature and determines whether the current temperature is in the set temperature identification zone. If the current temperature falls into different temperature identification zones within the set period, it indicates that the air conditioner is operating normally. At the same time, the controller can reduce the output of the air conditioner according to the current ambient temperature.

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