Air conditioner welding blockage detection method, device and system and air conditioner

Abstract

The invention discloses an air conditioner welding blockage detection method, device and system and an air conditioner, and belongs to the field of air conditioners. According to the method, the air conditioner is directly controlled to be started up and operate in the preset mode, then the temperature parameter of the air conditioner from starting up to the preset operation duration is detected, and whether the pipeline of the air conditioner is subjected to welding blockage or not is judged based on the change of the temperature parameter, and whether the pipeline of the air conditioner is subjected to welding blockage or not can be judged only based on the temperature parameter from starting up to the preset operation duration. No extra detection equipment is needed, the detection method is simple, the cost is low, the comfort and the user experience are improved, meanwhile, the customer requirements can be met, it is guaranteed that welding blockage does not exist in the air conditioner, and the product quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular, to a method, device and system for detecting welding blockage in an air conditioner and an air conditioner. Background Art

[0002] With the improvement of economic level, users have higher and higher requirements for air conditioners, not only for cooling and heating, but also for comfort and outdoor life. Portable air conditioners are favored by customers. In the production process of portable air conditioners, the compressor, air intake pipe assembly, exhaust pipe assembly, capillary assembly and two-device assembly need to be welded together by welding guns and welding rods. Due to the assembly line work, the welding level of welders is uneven, and the amount of solder is uncertain, which may lead to welding blockage. If welding blockage occurs, it is not discovered in time, and the portable air conditioner cannot be used after it is sold to customers. Customers will complain, which will damage the brand effect. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present application provides an air conditioner welding blockage detection method, device and system and an air conditioner, so as to solve the problem that when welding blockage exists in the existing air conditioner, it cannot be discovered in time, and when the portable air conditioner is sold and reaches the customer, it cannot be used, and the customer will complain, which damages the brand effect.

[0004] The technical solution adopted by this application to solve its technical problem is:

[0005] In a first aspect, a method for detecting welding blockage of an air conditioner is provided, comprising:

[0006] Controlling the air conditioner to start up and run in a preset mode;

[0007] Detecting temperature parameters of the air conditioner from when it is turned on to when it runs for a preset time, the temperature parameters including: compressor cylinder temperature, condenser outer tube temperature and ambient temperature;

[0008] Whether the pipeline of the air conditioner is blocked by welding is determined based on the change of the temperature parameter.

[0009] Further, judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0010] Acquire a first temperature parameter when the air conditioner is turned on and a second temperature parameter after running for a first preset time, wherein the first temperature parameter is a first condenser outer tube temperature; and the second temperature parameter includes a second compressor cylinder temperature, a second condenser outer tube temperature, and a second ambient temperature;

[0011] Whether a pipeline of the air conditioner is blocked by welding is determined based on the first temperature parameter and the second temperature parameter.

[0012] Further, judging whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter includes:

[0013] When the following conditions are met, it is determined that the pipe of the air conditioner is blocked by welding:

[0014] The second compressor cylinder temperature is greater than or equal to a preset compressor cylinder temperature;

[0015] and the difference between the second condenser outer tube temperature and the second ambient temperature is less than or equal to a preset difference;

[0016] And the difference between the temperature of the outer tube of the second condenser and the temperature of the outer tube of the first condenser is less than or equal to the preset difference.

[0017] Further, judging whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter includes:

[0018] When at least one of the following conditions is met, it is determined that the pipe of the air conditioner is not blocked by welding:

[0019] The second compressor cylinder temperature is less than a preset compressor cylinder temperature;

[0020] The difference between the second condenser outer tube temperature and the second ambient temperature is greater than a preset difference;

[0021] The difference between the temperature of the second condenser outer tube and the temperature of the first condenser outer tube is greater than the preset difference.

[0022] Furthermore, it also includes:

[0023] Acquire a first ambient temperature when the air conditioner is turned on;

[0024] The preset compressor cylinder temperature and the preset difference are determined based on the first ambient temperature. When other conditions remain unchanged, the larger the first ambient temperature is, the larger the preset compressor cylinder temperature and the preset difference are.

[0025] Furthermore, it also includes:

[0026] Obtaining the ambient humidity when the air conditioner is turned on;

[0027] The magnitudes of the preset compressor cylinder temperature and the preset difference are determined based on the ambient humidity. When other conditions remain unchanged, the greater the ambient humidity, the smaller the preset compressor cylinder temperature and the preset difference.

[0028] Further, judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0029] Acquire real-time temperature parameters of the air conditioner from startup to operation for a second preset time, wherein the real-time temperature parameters include a real-time compressor cylinder temperature and a real-time condenser outer tube temperature;

[0030] Generate a temperature change curve of the air conditioner based on the real-time temperature parameter, wherein the temperature change curve includes a compressor cylinder temperature change curve and a condenser outer tube temperature change curve;

[0031] Calculating a first similarity between the compressor cylinder temperature variation curve and a standard compressor cylinder temperature variation curve, and calculating a second similarity between the condenser outer tube temperature variation curve and a standard condenser outer tube temperature variation curve;

[0032] When the first similarity is greater than a first threshold and the second similarity is greater than a second threshold, it is determined that the pipe of the air conditioner is not blocked by welding; when the first similarity is less than or equal to the first threshold or the second similarity is less than or equal to the second threshold, it is determined that the pipe of the air conditioner is blocked by welding.

[0033] In a second aspect, a device for detecting welding blockage of an air conditioner is provided, comprising:

[0034] A power-on and operation control module, used to control the air conditioner to start up and operate in a preset mode;

[0035] A temperature parameter detection module, used to detect the temperature parameters of the air conditioner from the time it is turned on to the time it runs for a preset time, the temperature parameters including: compressor cylinder temperature, condenser outer tube temperature and ambient temperature;

[0036] The pipeline welding blockage judgment module is used to judge whether the pipeline of the air conditioner is welded or blocked based on the change of the temperature parameter.

[0037] In a third aspect, an air conditioner welding blockage detection system is provided, comprising:

[0038] at least one processor and at least one memory;

[0039] The memory stores executable instructions of the processor;

[0040] The processor is configured to execute the above-mentioned air conditioner welding blockage detection method.

[0041] In a fourth aspect, an air conditioner is provided, applying the above-mentioned air conditioner welding blockage detection method.

[0042] Beneficial effects:

[0043] The technical solution of the present application provides an air-conditioning welding blockage detection method, device and system and an air-conditioner, which directly control the air-conditioner to start up and run in a preset mode, then detect the temperature parameters from the time the air-conditioner is started up to the preset running time, and judge whether the air-conditioning pipe is welded or not based on the change in temperature parameters. The present application only needs to judge whether the air-conditioning pipe is welded or not based on the temperature parameters from the time the air-conditioner is started up to the preset running time, without the need for additional detection equipment. The detection method is simple and low-cost, which not only improves comfort and user experience but also meets customer needs, ensures that the air-conditioner is not welded or not, and improves product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 This is a flow chart of a method for detecting welding blockage in an air conditioner provided in an embodiment of the present application;

[0046] Figure 2 It is a schematic diagram of the structure of a portable air conditioner provided in an embodiment of the present application;

[0047] Figure 3 It is a flow chart of a specific portable air conditioner welding blockage detection method provided in an embodiment of the present application;

[0048] Figure 4 It is a structural schematic diagram of an air conditioner welding blockage detection device provided in an embodiment of the present application;

[0049] Figure 5 It is a structural schematic diagram of an air conditioner welding blockage detection system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application is described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0051] like Figure 1 As shown, the embodiment of the present application provides a method for detecting welding blockage of an air conditioner, comprising:

[0052] S11: Control the air conditioner to start up and run in a preset mode.

[0053] It should be noted that the present application determines whether welding blockage occurs through parameters of the operation process after the air conditioner is turned on, and no additional detection device is required.

[0054] In addition, due to different modes, the temperature changes of the outer tube of the condenser are different (in the case of no welding, it increases during cooling and decreases during heating). Generally, air conditioners are used for cooling, so the embodiments of the present application are described using cooling as an example.

[0055] S12: Detecting temperature parameters of the air conditioner from when it is turned on to when it runs for a preset time, wherein the temperature parameters include: compressor cylinder temperature, condenser outer tube temperature and ambient temperature.

[0056] Since the temperature parameters at a single moment cannot be accurately determined, the temperature parameters from the time the air conditioner is turned on to the preset running time are required to determine whether welding is blocked based on the change in temperature parameters.

[0057] S13: Determine whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter.

[0058] In one embodiment, judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0059] Obtain a first temperature parameter when the air conditioner is turned on and a second temperature parameter after running for a first preset time, wherein the first temperature parameter is the temperature of the outer tube of the first condenser; the second temperature parameter includes the second compressor cylinder temperature, the second condenser outer tube temperature and the second ambient temperature; determine whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter.

[0060] Wherein, when the following conditions are met, it is determined that the pipe of the air conditioner is welded and blocked:

[0061] The second compressor cylinder temperature is greater than or equal to the preset compressor cylinder temperature; and the difference between the second condenser outer tube temperature and the second ambient temperature is less than or equal to the preset difference; and the difference between the second condenser outer tube temperature and the first condenser outer tube temperature is less than or equal to the preset difference.

[0062] When at least one of the following conditions is met, it is determined that the pipe of the air conditioner is not blocked by welding:

[0063] The second compressor cylinder temperature is less than a preset compressor cylinder temperature;

[0064] The difference between the second condenser outer tube temperature and the second ambient temperature is greater than a preset difference;

[0065] The difference between the temperature of the second condenser outer tube and the temperature of the first condenser outer tube is greater than the preset difference.

[0066] In actual judgment, since the three conditions will inevitably occur when welding, and if only one condition is used, it will lead to misjudgment. For example, the ambient temperature fluctuates, causing the difference between the temperature of the second condenser outer tube and the temperature of the first condenser outer tube to be less than or equal to the preset difference when no welding is performed (such as during refrigeration, the ambient temperature drops, causing the temperature of the second condenser outer tube to rise slightly, so that the difference between the temperature of the second condenser and the first condenser outer tube is small, less than the preset difference), and the other two welding conditions do not meet the requirements. At this time, there is actually no welding. If one welding condition is used for judgment, it will cause misjudgment.

[0067] In one embodiment, the present application adopts a specific detection environment when testing, that is, the ambient temperature and ambient humidity are the same, so that the preset compressor cylinder temperature and the preset difference are fixed values. However, in practice, the specific detection environment may be difficult to maintain (high cost).

[0068] Therefore, in another embodiment, it is necessary to determine the size of the preset compressor cylinder temperature and the preset difference based on different ambient temperatures and ambient humidity. Specifically, as follows:

[0069] Obtain a first ambient temperature when the air conditioner is turned on; determine the size of the preset compressor cylinder temperature and the preset difference based on the first ambient temperature, and when other conditions remain unchanged, the larger the first ambient temperature, the larger the preset compressor cylinder temperature and the preset difference.

[0070] And obtain the ambient humidity when the air conditioner is turned on; determine the size of the preset compressor cylinder temperature and the preset difference based on the ambient humidity, when other conditions remain unchanged, the greater the ambient humidity, the smaller the preset compressor cylinder temperature and the preset difference.

[0071] Exemplarily, the preset compressor cylinder temperature and the preset difference under different first ambient temperatures and ambient humidities are tested in advance, and then the test data is stored in the controller, and the corresponding preset compressor cylinder temperature and preset difference are selected by automatically looking up the table according to the ambient humidity and ambient temperature during the actual test.

[0072] However, when the first preset time is long, if the pipeline is welded but not completely blocked, the second compressor cylinder temperature may be greater than or equal to the preset compressor cylinder temperature; and the difference between the second condenser outer tube temperature and the second ambient temperature may be less than or equal to the preset difference; and the difference between the second condenser outer tube temperature and the first condenser outer tube temperature may be less than or equal to the preset difference. Therefore, in actual testing, the first preset time needs to be controlled.

[0073] Alternatively, in another embodiment, the present application provides a solution for determining whether the air conditioner is completely free of welding blockage, as follows:

[0074] Judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0075] Acquire real-time temperature parameters of the air conditioner from startup to operation for a second preset time, wherein the real-time temperature parameters include a real-time compressor cylinder temperature and a real-time condenser outer tube temperature;

[0076] Generate a temperature change curve of the air conditioner based on the real-time temperature parameter, wherein the temperature change curve includes a compressor cylinder temperature change curve and a condenser outer tube temperature change curve;

[0077] The first similarity between the compressor cylinder temperature change curve and the standard compressor cylinder temperature change curve is calculated, and the second similarity between the condenser outer tube temperature change curve and the standard condenser outer tube temperature change curve is calculated; wherein, the standard compressor cylinder temperature change curve and the standard condenser outer tube temperature change curve are measured under the same conditions (mainly temperature and humidity) as the environment during the test with an air conditioner that is confirmed to be completely free of welding blockage. It can be understood that their operating modes are also the same.

[0078] When the first similarity is greater than a first threshold and the second similarity is greater than a second threshold, it is determined that the pipe of the air conditioner is not blocked by welding, and when the first similarity is less than or equal to the first threshold or the second similarity is less than or equal to the second threshold, it is determined that the pipe of the air conditioner is blocked by welding. The first threshold and the second threshold are determined according to actual needs.

[0079] In this scheme, the second preset time length can be set smaller than the first preset time length, which can not only speed up the rate, but also directly determine that there is no weld blockage when the first similarity is greater than the first threshold and the second similarity is greater than the second threshold, because once there is weld blockage, even if it is incomplete weld blockage, there must be differences in its change curve.

[0080] In specific implementation, a method for determining welding blockage is configured as needed, or two methods are used in combination to determine the specific situation of the air-conditioning pipeline (i.e., no welding blockage, partial welding blockage, and complete welding blockage).

[0081] The air conditioner welding blockage detection method provided in the embodiment of the present application directly controls the air conditioner to start up and run in a preset mode, then detects the temperature parameters from the time the air conditioner is started up to the preset running time, and determines whether the air conditioner pipes are welded based on the changes in the temperature parameters. The present application only needs to determine whether the air conditioner pipes are welded based on the temperature parameters from the time the air conditioner is started up to the preset running time, and no additional detection equipment is required. The detection method is simple and low-cost, which not only improves comfort and user experience but also meets customer needs, ensures that the air conditioner is not welded, and improves product quality.

[0082] In order to explain the present application scheme more specifically, a specific implementation method is provided below. In the embodiment of the present application, a compressor cylinder temperature sensing package, a condenser outer tube temperature sensing package and an environment temperature sensing package are added to the portable air conditioner. For example, the portable air conditioner structure is as follows: Figure 2 As shown (it should be noted that since this application only adds a temperature sensing package and does not improve the air-conditioning structure, some structures are not shown in the figure), among which the four-way valve components and specific pipelines are not reflected in this figure, 1 is the centrifugal fan blade on the evaporation side, 2 is the environmental temperature sensing package, which detects the ambient temperature, 3 is the evaporator on the evaporation side including the flow path, and the specific details are not reflected in the figure, 4 is the compressor cylinder body temperature sensing package for detecting the compression cylinder body temperature, 5 is the electrical box component that can receive the ambient temperature, the compressor cylinder body temperature and the condenser outer pipe temperature as well as the whole machine tank liquid level signal and process the signal, 6 is the condenser outer pipe temperature sensing package, 7 is the connection line for connecting 9 the tank liquid level detection instrument, 8 is the condenser side air outlet, air inlet Not shown in the figure, 9 is a water tank level detection instrument, which detects the liquid level through a capacitive level detection switch probe, 10 is a centrifugal fan blade on the condensation side, which includes a condenser pipeline. The specific details of the condenser on the condensation side are not shown in the figure, 11 is a condenser side water tank, which can collect the condensed water on the evaporator side. The evaporator side is not shown in the figure, 12 is a water pumping motor fan blade, 13 is a water pumping motor, which drives the fan blade to operate, 14 is a compressor, which compresses the gaseous refrigerant to a high-temperature and high-pressure gas, and the condenser condenses it into a low-temperature and high-pressure liquid. The capillary throttling is used to throttle the gaseous refrigerant into a low-temperature and low-pressure liquid, and the cold air is blown out through the evaporator heat exchange. The specific pipeline is not shown in this figure, 15 is the evaporation side air outlet, and the air inlet is not shown in the figure.

[0083] In the production of portable air conditioners, the level of welders varies when welding the whole machine, and excessive use of solder leads to welding blockage of the prototype. The inventor of this application found that after welding blockage, the refrigerant cannot flow inside the pipeline, the whole machine cannot refrigerate, the compressor runs to compress the refrigerant but the refrigerant does not flow, the compressor refrigerant pressure and temperature continue to rise, resulting in higher compressor cylinder temperature, the condenser tube temperature cannot rise, the temperature of the entire prototype and the condenser outer tube does not change basically, and the difference with the ambient temperature remains basically unchanged. The specific implementation process of the portable air conditioner welding blockage detection method is as follows: Figure 3 :

[0084] Turn on the portable air conditioner;

[0085] Within 5 minutes after power-on, the compressor cylinder temperature sensor starts to detect the temperature value T 缸体 , the condenser outer tube temperature sensor starts to detect the temperature value T 外管 The ambient temperature sensor starts to detect the temperature value T 环境 ;

[0086] When detecting T 缸体5 ≥A0 and T 外管5 -T 环境5 ≤A1 and T外管5 -T 外管0 ≤A1, that is, the pipeline is blocked by welding, and the display reports LE to confirm that it has been blocked by welding. If the prototype is not blocked by welding and operates normally with cooling effect, the compressor cylinder temperature will rise to above 85℃ in 5 minutes, and the condenser outer tube temperature will rise by more than 10℃, so that the compressor cylinder temperature sensing package will be above 85℃ in 5 minutes after starting, and the condenser outer tube will have a 10℃ difference with the ambient temperature;

[0087] When detecting T 缸体5 <A0 or T 外管5 -T 环境5 >A1 or T 外管5 -T 外管0 >A1, the pipeline is not blocked by welding, and can operate normally and refrigerate normally. After 5 minutes, the compressor cylinder temperature will be lower than 85℃, and the external tube temperature will be much different from the ambient temperature by more than 3℃ after 5 minutes, or the external tube temperature will be much different from the initial external tube temperature by more than 3℃ after 5 minutes. After welding, there is no refrigeration effect at all. The compressor runs to compress the refrigerant, but the refrigerant does not flow. The compressor refrigerant pressure and temperature continue to rise, causing the compressor cylinder temperature to rise higher to more than 85. The condenser external tube temperature does not change in 5 minutes, so there is no difference between the condenser external tube temperature and the ambient temperature. There is no difference in the external tube temperature from startup to 5 minutes. Welding can be judged by the temperature difference between the compressor cylinder temperature, the external tube temperature and the ambient temperature. If welding will cause quality problems, it needs to be returned to the production line and the pipeline needs to be re-welded.

[0088] Among them, T 缸体5 is the compressor cylinder temperature 5 minutes after startup, T 外管5 is the condenser outer tube temperature 5 minutes after startup, T 环境5 is the ambient temperature 5 minutes after startup, T 外管0 It is the outer tube temperature of the condenser after startup.

[0089] Table 1 shows the test data of the compressor cylinder temperature. Under the test environment of ambient temperature 25℃ and humidity 60%, the highest compressor cylinder temperature of the three prototypes does not exceed 67℃ when not welded, and the lowest compressor cylinder temperature is not less than 85℃ when welded. Therefore, the compressor cylinder temperature of this patent is higher than 85℃ and can be judged as welded. The test data shows that the compressor cylinder temperature is relatively stable, and there is a 20℃ margin when not welded, which is not easy to misreport.

[0090] Table 1

[0091]

[0092] The specific portable air-conditioner welding blockage detection method provided in the embodiment of the present application adds a compressor cylinder temperature sensor on the basis of a portable air conditioner with comprehensive control of an external pipe and an environmental temperature sensor, and simultaneously adds intelligent detection of the compressor cylinder temperature sensor, the external pipe temperature sensor and the environmental temperature sensor, as well as control logic for judgment. Through comprehensive calculation, it is confirmed whether the pipeline is welded or not. If there is a welded product, it is inspected and re-welded as soon as possible to ensure that each unit is a qualified product, thereby improving the user experience comfort.

[0093] Based on the same inventive concept, Figure 4 As shown, the present application also provides an air conditioner welding blockage detection device 40, comprising:

[0094] The power-on operation control module 41 is used to control the air conditioner to start up and operate in a preset mode.

[0095] The temperature parameter detection module 42 is used to detect the temperature parameters of the air conditioner from the time it is turned on to the time it runs for a preset time. The temperature parameters include: compressor cylinder temperature, condenser outer tube temperature and ambient temperature.

[0096] The pipeline welding blockage judgment module 43 is used to judge whether the pipeline of the air conditioner is welded or blocked based on the change of the temperature parameter.

[0097] In one embodiment, judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0098] Acquire a first temperature parameter when the air conditioner is turned on and a second temperature parameter after running for a first preset time, wherein the first temperature parameter is a first condenser outer tube temperature; and the second temperature parameter includes a second compressor cylinder temperature, a second condenser outer tube temperature, and a second ambient temperature;

[0099] Whether a pipeline of the air conditioner is blocked by welding is determined based on the first temperature parameter and the second temperature parameter.

[0100] Wherein, judging whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter includes:

[0101] When the following conditions are met, it is determined that the pipe of the air conditioner is blocked by welding:

[0102] The second compressor cylinder temperature is greater than or equal to a preset compressor cylinder temperature;

[0103] and the difference between the second condenser outer tube temperature and the second ambient temperature is less than or equal to a preset difference;

[0104] And the difference between the temperature of the outer tube of the second condenser and the temperature of the outer tube of the first condenser is less than or equal to the preset difference.

[0105] When at least one of the following conditions is met, it is determined that the pipe of the air conditioner is not blocked by welding:

[0106] The second compressor cylinder temperature is less than a preset compressor cylinder temperature;

[0107] The difference between the second condenser outer tube temperature and the second ambient temperature is greater than a preset difference;

[0108] The difference between the temperature of the second condenser outer tube and the temperature of the first condenser outer tube is greater than the preset difference.

[0109] As an optional implementation of the embodiment of the present application, it also includes:

[0110] Acquire a first ambient temperature when the air conditioner is turned on;

[0111] The preset compressor cylinder temperature and the preset difference are determined based on the first ambient temperature. When other conditions remain unchanged, the larger the first ambient temperature is, the larger the preset compressor cylinder temperature and the preset difference are.

[0112] As another optional implementation of the embodiment of the present application, it also includes:

[0113] Obtaining the ambient humidity when the air conditioner is turned on;

[0114] The magnitudes of the preset compressor cylinder temperature and the preset difference are determined based on the ambient humidity. When other conditions remain unchanged, the greater the ambient humidity, the smaller the preset compressor cylinder temperature and the preset difference.

[0115] In another embodiment, judging whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes:

[0116] Acquire real-time temperature parameters of the air conditioner from startup to operation for a second preset time, wherein the real-time temperature parameters include a real-time compressor cylinder temperature and a real-time condenser outer tube temperature;

[0117] Generate a temperature change curve of the air conditioner based on the real-time temperature parameter, wherein the temperature change curve includes a compressor cylinder temperature change curve and a condenser outer tube temperature change curve;

[0118] Calculating a first similarity between the compressor cylinder temperature variation curve and a standard compressor cylinder temperature variation curve, and calculating a second similarity between the condenser outer tube temperature variation curve and a standard condenser outer tube temperature variation curve;

[0119] When the first similarity is greater than a first threshold and the second similarity is greater than a second threshold, it is determined that the pipe of the air conditioner is not blocked by welding; when the first similarity is less than or equal to the first threshold or the second similarity is less than or equal to the second threshold, it is determined that the pipe of the air conditioner is blocked by welding.

[0120] The air conditioner welding blockage detection device provided in the embodiment of the present application directly controls the air conditioner to start up and run in a preset mode, then detects the temperature parameters from the time the air conditioner is started up to the preset running time, and determines whether the air conditioner pipes are welded based on the changes in the temperature parameters. The present application only needs to determine whether the air conditioner pipes are welded based on the temperature parameters from the time the air conditioner is started up to the preset running time, without the need for additional detection equipment. The detection method is simple and low-cost, which not only improves comfort and user experience but also meets customer needs, ensures that the air conditioner is not welded, and improves product quality.

[0121] Based on the same inventive concept, Figure 5 As shown, the present application also provides an air conditioner welding blockage detection system 50, comprising:

[0122] at least one processor 51 and at least one memory 52;

[0123] The memory stores executable instructions of the processor;

[0124] The processor is configured to execute the air conditioner welding blockage detection method provided in the above embodiment.

[0125] The air conditioner welding blockage detection system provided in the embodiment of the present application stores executable instructions of the processor in the memory. When the executable instructions are executed, the processor can directly control the air conditioner to start up and run in a preset mode, and then detect the temperature parameters from the time the air conditioner is turned on to the preset running time, and judge whether the air conditioner pipe is welded based on the change of temperature parameters. The present application only needs to judge whether the air conditioner pipe is welded based on the temperature parameters from the time the air conditioner is turned on to the preset running time, and no additional detection equipment is required. The detection method is simple and low-cost, which not only improves comfort and user experience but also meets customer needs, ensures that there is no welding blockage in the air conditioner, and improves product quality.

[0126] Based on the same inventive concept, the present application also provides an air conditioner, using the air conditioner welding blockage detection method provided in the above embodiment.

[0127] The air conditioner provided in the present application can directly control the air conditioner to start up and run in a preset mode by applying the air conditioner welding blockage detection method provided in the above embodiment, and then detect the temperature parameters from the start-up of the air conditioner to the preset running time, and judge whether the air conditioner pipeline is welded or blocked based on the change of the temperature parameters. The present application only needs to judge whether the air conditioner pipeline is welded or blocked based on the temperature parameters from the start-up of the air conditioner to the preset running time, without the need for additional detection equipment, and the detection method is simple and low-cost, which not only improves comfort and user experience but also meets customer needs, ensures that there is no welding blockage in the air conditioner, and improves product quality.

[0128] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0129] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

Claims

1. A method for detecting welding blockage of an air conditioner, characterized in that: include: Controlling the air conditioner to start up and run in a preset mode; Detecting temperature parameters of the air conditioner from when it is turned on to when it runs for a preset time, the temperature parameters including: compressor cylinder temperature, condenser outer tube temperature and ambient temperature; Whether the pipeline of the air conditioner is blocked by welding is determined based on the change of the temperature parameter.

2. The method according to claim 1, characterized in that: The determining whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes: Acquire a first temperature parameter when the air conditioner is turned on and a second temperature parameter after running for a first preset time, wherein the first temperature parameter is a first condenser outer tube temperature; and the second temperature parameter includes a second compressor cylinder temperature, a second condenser outer tube temperature, and a second ambient temperature; Whether a pipeline of the air conditioner is blocked by welding is determined based on the first temperature parameter and the second temperature parameter.

3. The method according to claim 2, characterized in that: The determining whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter includes: When the following conditions are met, it is determined that the pipe of the air conditioner is blocked by welding: The second compressor cylinder temperature is greater than or equal to a preset compressor cylinder temperature; and the difference between the second condenser outer tube temperature and the second ambient temperature is less than or equal to a preset difference; And the difference between the temperature of the outer tube of the second condenser and the temperature of the outer tube of the first condenser is less than or equal to the preset difference.

4. The method according to claim 2, characterized in that: The determining whether the pipeline of the air conditioner is blocked by welding based on the first temperature parameter and the second temperature parameter includes: When at least one of the following conditions is met, it is determined that the pipe of the air conditioner is not blocked by welding: The second compressor cylinder temperature is less than a preset compressor cylinder temperature; The difference between the second condenser outer tube temperature and the second ambient temperature is greater than a preset difference; The difference between the temperature of the second condenser outer tube and the temperature of the first condenser outer tube is greater than the preset difference.

5. The method according to claim 3 or 4, characterized in that: Also includes: Acquire a first ambient temperature when the air conditioner is turned on; The preset compressor cylinder temperature and the preset difference are determined based on the first ambient temperature. When other conditions remain unchanged, the larger the first ambient temperature is, the larger the preset compressor cylinder temperature and the preset difference are.

6. The method according to claim 3 or 4, characterized in that: Also includes: Obtaining the ambient humidity when the air conditioner is turned on; The magnitudes of the preset compressor cylinder temperature and the preset difference are determined based on the ambient humidity. When other conditions remain unchanged, the greater the ambient humidity, the smaller the preset compressor cylinder temperature and the preset difference.

7. The method according to claim 1, characterized in that: The determining whether the pipeline of the air conditioner is blocked by welding based on the change of the temperature parameter includes: Acquire real-time temperature parameters of the air conditioner from startup to operation for a second preset time, wherein the real-time temperature parameters include a real-time compressor cylinder temperature and a real-time condenser outer tube temperature; Generate a temperature change curve of the air conditioner based on the real-time temperature parameter, wherein the temperature change curve includes a compressor cylinder temperature change curve and a condenser outer tube temperature change curve; Calculating a first similarity between the compressor cylinder temperature variation curve and a standard compressor cylinder temperature variation curve, and calculating a second similarity between the condenser outer tube temperature variation curve and a standard condenser outer tube temperature variation curve; When the first similarity is greater than a first threshold and the second similarity is greater than a second threshold, it is determined that the pipe of the air conditioner is not blocked by welding; when the first similarity is less than or equal to the first threshold or the second similarity is less than or equal to the second threshold, it is determined that the pipe of the air conditioner is blocked by welding.

8. An air conditioner welding blockage detection device, characterized in that: include: A power-on and operation control module, used to control the air conditioner to start up and operate in a preset mode; A temperature parameter detection module, used to detect the temperature parameters of the air conditioner from the time it is turned on to the time it runs for a preset time, the temperature parameters including: compressor cylinder temperature, condenser outer tube temperature and ambient temperature; The pipeline welding blockage judgment module is used to judge whether the pipeline of the air conditioner is welded or blocked based on the change of the temperature parameter.

9. An air conditioner welding blockage detection system, characterized in that: include: at least one processor and at least one memory; The memory stores executable instructions of the processor; The processor is configured to execute the method according to any one of claims 1 to 7.

10. An air conditioner, characterized in that: The method according to any one of claims 1 to 7 is used.

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