Air conditioner welding blockage detection method, control system, electronic equipment and storage medium

Abstract

The present invention provides a method for detecting welding blockage of an air conditioner, a control system, an electronic device and a storage medium, comprising: obtaining the change of the refrigerant temperature at the outlet of a heat exchanger; determining the welding blockage of the air conditioner based on the change; adjusting the shunt state of the air conditioner to verify the welding blockage of the air conditioner. The method for detecting welding blockage of an air conditioner provided by the present invention first obtains the change of the refrigerant temperature at the outlet of a heat exchanger to preliminarily determine the welding blockage of the air conditioner, and after determining the welding blockage, adjusts the shunt state of the air conditioner to verify the welding blockage of the air conditioner, and determines whether welding blockage occurs in the air conditioner under different shunt states, so as to comprehensively determine the overall welding blockage of the air conditioner, and avoid directly treating the heat exchange pipeline as waste.

Description

Technical Field

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

[0002] Air conditioners are now a must-have appliance for homes and offices, especially in summer and winter, when they are used for long periods of time. Air conditioners can cool in summer and heat in winter, and can adjust the indoor temperature to keep warm in winter and cool in summer, providing users with a comfortable environment.

[0003] During the manufacturing of air conditioners, the condenser is often blocked by welding or foreign objects enter the condenser pipes, which affects the cooling capacity of the air conditioner or even causes the air conditioner to stop working. The existing detection method can only detect the welding blockage of a single refrigeration pipe of the heat exchanger, and cannot judge the situation when there are multiple pipes in the heat exchanger, so it can only be directly scrapped. Summary of the invention

[0004] The embodiments of the present invention provide a method for detecting welding blockage of an air conditioner, a control system, an electronic device and a storage medium, which solve the problem that the existing detection method cannot determine the welding blockage of a heat exchanger with multiple paths.

[0005] The embodiment of the present invention provides a method for detecting welding blockage of an air conditioner, comprising:

[0006] Obtain the change of refrigerant temperature at the outlet of the heat exchanger;

[0007] Based on the changes, determining the welding blockage of the air conditioner;

[0008] The diversion state of the air conditioner is adjusted, and the welding blockage condition of the air conditioner is verified.

[0009] According to a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention, the step of determining the welding blockage of the air conditioner based on the change comprises:

[0010] If the change in the refrigerant temperature at the outlet of the heat exchanger is less than or equal to a preset value, it is determined that the air conditioner is in a partially welded state;

[0011] If the change in the refrigerant temperature at the outlet of the heat exchanger is greater than a preset value, it is determined that the air conditioner is in a normal state.

[0012] According to a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention, the step of adjusting the diversion state of the air conditioner and verifying the welding blockage of the air conditioner comprises:

[0013] Adjust the air conditioner diversion state and obtain the change of the refrigerant temperature at the outlet of the heat exchanger again;

[0014] Based on the changes obtained again, the welding blockage condition of the air conditioner is verified.

[0015] According to a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention, the step of verifying the welding blockage of the air conditioner based on the change situation acquired again includes:

[0016] If the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to a preset value, and the air conditioner is previously determined to be in a partially welded state, then the air conditioner is verified to be in a completely welded state;

[0017] If the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to a preset value, and the air conditioner is previously determined to be in a normal state, then the air conditioner is verified to be in a partially welded state;

[0018] If the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than a preset value, and the air conditioner is previously determined to be in a partially welded state, then verifying that the air conditioner is in a partially welded state;

[0019] If the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than a preset value, and the air conditioner is previously determined to be in a normal state, then it is verified that the air conditioner is in a normal state.

[0020] According to a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention, the step of adjusting the air conditioner diversion state comprises:

[0021] Obtain and determine the current heat exchange pipeline of the heat exchanger;

[0022] The air conditioner is adjusted to work with multi-path flow or with another heat exchange pipeline.

[0023] According to a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention, after the step of verifying and determining that the air conditioner is in a partially welded state, the method further includes:

[0024] The welding and blocking position of the air conditioner is determined, and the air conditioner is locked to work in a normal diversion state.

[0025] The present invention also provides a control system for air conditioner welding plugging, comprising:

[0026] An acquisition module is used to obtain the change of the refrigerant temperature at the outlet of the heat exchanger;

[0027] A determination module, used to determine the welding blockage condition of the air conditioner based on the change condition;

[0028] The verification module is used to adjust the diversion state of the air conditioner and verify the welding blockage condition of the air conditioner.

[0029] An embodiment of the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the method for detecting welding blockage of an air conditioner is implemented when the processor executes the program.

[0030] An embodiment of the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, and the computer program, when executed by a processor, implements the method for detecting welding blockage of an air conditioner.

[0031] An embodiment of the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the air conditioner welding blockage detection method.

[0032] The air conditioner welding blockage detection method, control system, electronic device and storage medium provided by the present invention first obtain the change of the refrigerant temperature at the heat exchanger outlet to preliminarily determine the welding blockage condition of the air conditioner, and after determining the welding blockage condition, adjust the diversion state of the air conditioner to verify the welding blockage condition of the air conditioner, and determine whether the air conditioner is welded under different diversion states, so as to comprehensively determine the overall welding blockage condition of the air conditioner and avoid directly treating the heat exchange pipeline as waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 is a schematic structural diagram of a variable flow splitter device provided in one embodiment of the present invention;

[0035] Figure 2 is a schematic structural diagram of a heat exchanger provided in one embodiment of the present invention;

[0036] Figure 3 It is a flow chart of a method for detecting welding blockage of an air conditioner provided by an embodiment of the present invention;

[0037] Figure 4 is a flow chart of a method for detecting welding blockage of an air conditioner provided by another embodiment of the present invention;

[0038] Figure 5 It is a structural schematic diagram of a control system for air conditioning welding plugging provided by an embodiment of the present invention;

[0039] Figure 6is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention;

[0040] Reference numerals:

[0041] 1. First shunt pipeline; 10. One-way valve; 2. Second shunt pipeline; 3. Reversing valve; 31. First connecting port; 32. Second connecting port; 33. Third connecting port; 34. Fourth connecting port; 4. Heat exchange pipeline; 510. Acquisition module; 520. Determination module; 530. Verification module; 610. Processor; 620. Communication interface; 630. Memory; 640. Communication bus. DETAILED DESCRIPTION

[0042] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In the description of the embodiments of the present invention, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] The invention provides a method for detecting welding blockage of an air conditioner, wherein the air conditioner may be a wall-mounted air conditioner, a cabinet-type air conditioner, a window-type air conditioner, a ceiling-mounted air conditioner, or the like.

[0047] like Figure 1 and Figure 2As shown, a variable flow divider is provided in the indoor heat exchanger or the outdoor heat exchanger of the air conditioner, and a variable flow divider can also be provided in both the indoor heat exchanger and the outdoor heat exchanger. The variable flow divider includes: a reversing valve 3, a first flow divider pipeline 1, a second flow divider pipeline 2, and at least two heat exchange pipelines 4. The first flow divider pipeline 1 is connected to the second flow divider pipeline 2 through at least two heat exchange pipelines 4. The first flow divider pipeline 1 and the second flow divider pipeline 2 are both provided with a main pipeline and a plurality of branch pipelines, and a one-way valve 10 can be provided in some of the branch pipelines as needed.

[0048] The reversing valve 3 is a two-position four-way reversing valve, and is provided with a first communication port 31, a second communication port 32, a third communication port 33 and a fourth communication port 34. The reversing valve 3 has a first position and a second position. The first communication port 31 is connected to the refrigerant inlet, and the third communication port 33 is connected to the refrigerant outlet.

[0049] The diversion state is divided into single-way diversion and multi-way diversion. In the case of multi-way diversion, the refrigerant in the outdoor heat exchanger of the air conditioner works in multiple ways. In the case of single-way diversion, the refrigerant in the outdoor heat exchanger of the air conditioner works in a single way.

[0050] During multi-way diversion, the reversing valve 3 is in the first position, the first connecting port 31 is connected to the second connecting port 32, and the third connecting port 33 is connected to the fourth connecting port 34. At this time, the second connecting port 32 is connected to the first diversion pipeline 1, and the fourth connecting port 34 is connected to the second diversion pipeline 2. The refrigerant at the refrigerant inlet enters from the first diversion pipeline 1, is diverted in the branch pipeline of the first diversion pipeline 1, enters each heat exchange pipeline 4 to exchange heat with the indoor air, and then enters the main pipeline of the second diversion pipeline 2 through the branch pipeline, and finally passes through the fourth connecting port 34 and the third connecting port 33, and is discharged from the refrigerant outlet, realizing heat exchange by multiple pipelines.

[0051] During single-way diversion, the reversing valve 3 is in the second position, the first connecting port 31 is connected to the fourth connecting port 34, and the third connecting port 33 is connected to the second connecting port 32. At this time, the second connecting port 32 is connected to the second diversion pipeline 2, and the fourth connecting port 34 is connected to the first diversion pipeline 1. The refrigerant at the refrigerant inlet enters from the second diversion pipeline 2. Since the one-way valve 10 is set in part of the pipeline in the first diversion pipeline 1, under its restriction, the refrigerant can only be discharged by heat exchange in part of the heat exchange pipeline 4, and the heat exchange pipeline can be reduced at this time.

[0052] In this embodiment, two heat exchange pipelines 4 are taken as examples, namely the first heat exchange pipeline and the second heat exchange pipeline. The first branch pipeline 1 and the second branch pipeline 2 are each provided with a main pipeline and two branch pipelines. A check valve 10 is provided in one branch pipeline of the first branch pipeline 1. Assume that the check valve 10 is provided in only one branch pipeline of the first branch pipeline 1.

[0053] During multi-way diversion, the reversing valve 3 is in the first position, the first connecting port 31 is connected to the second connecting port 32, and the third connecting port 33 is connected to the fourth connecting port 34. At this time, the second connecting port 32 is connected to the first diversion pipeline 1, and the fourth connecting port 34 is connected to the second diversion pipeline 2. The refrigerant at the refrigerant inlet enters from the first diversion pipeline 1, is diverted in the branch pipeline of the first diversion pipeline 1, enters the first heat exchange pipeline and the second heat exchange pipeline respectively to exchange heat with the indoor air, and then enters the main pipeline of the second diversion pipeline 2 through the branch pipeline, and finally passes through the fourth connecting port 34 and the third connecting port 33, and is discharged from the refrigerant outlet, realizing simultaneous heat exchange of the two pipelines.

[0054] In the case of single-way diversion, the reversing valve 3 is in the second position, the first connecting port 31 is connected to the fourth connecting port 34, and the third connecting port 33 is connected to the second connecting port 32. At this time, the second connecting port 32 is connected to the second diversion pipeline 2, and the fourth connecting port 34 is connected to the first diversion pipeline 1. The refrigerant at the refrigerant inlet enters from the second diversion pipeline 2. Since the one-way valve 10 is set in the branch pipeline in the first diversion pipeline 1, under its restriction, the refrigerant can only be discharged by heat exchange in the first heat exchange pipeline 4. At this time, heat exchange is only performed through one heat exchange pipeline 4.

[0055] like Figure 3 As shown, the method for detecting welding blockage of air conditioner includes the following steps:

[0056] Step S310: Obtain the change of the refrigerant temperature at the outlet of the heat exchanger.

[0057] After the air conditioner is started, in order to accurately determine the location of the welding blockage, the air conditioner is first controlled to work in a single-path diversion mode. The air conditioner can determine the change in the refrigerant temperature at the outlet of the heat exchanger through the sensor. If the indoor heat exchanger needs to be verified, the change in the refrigerant temperature in the indoor heat exchanger is obtained. If the outdoor heat exchanger needs to be verified, the change in the refrigerant temperature in the outdoor heat exchanger is obtained.

[0058] Specifically, the sensor can detect the refrigerant temperature at the outlet of the heat exchanger when it is turned on, and detect the refrigerant temperature at the outlet of the heat exchanger again after a period of time after being turned on, such as 1 minute, to determine the change in the refrigerant temperature.

[0059] Step S320: determining the welding blockage of the air conditioner based on the change situation;

[0060] After determining the change in refrigerant temperature, determine the welding blockage of the air conditioner.

[0061] If the change in the refrigerant temperature at the heat exchanger outlet is less than or equal to the preset value, for example, the change in the refrigerant temperature is less than or equal to 5°C, it is determined that the air conditioner is in a partially welded state. In other words, in the current diversion state, the air conditioner cannot work normally, and the heat exchange pipeline in the current heat exchanger is welded. If the change in the refrigerant temperature at the heat exchanger outlet is greater than the preset value, for example, the change in the refrigerant temperature is greater than 5°C, it is determined that the air conditioner is in a normal state. In other words, in the current diversion state, the air conditioner can work normally.

[0062] Step S330: adjusting the diversion state of the air conditioner and verifying the welding blockage of the air conditioner.

[0063] After initially determining the weld blockage location, adjust the air conditioner's diversion state. During the adjustment process, you can first determine the current heat exchange pipeline of the heat exchanger; adjust the air conditioner to divert in multiple ways or work with another heat exchange pipeline. Determine whether the air conditioner can work normally in other diversion states, thereby verifying the weld blockage situation.

[0064] The method for detecting welding blockage of an air conditioner provided by the present invention first obtains the change in the refrigerant temperature at the outlet of the heat exchanger to preliminarily determine the welding blockage condition of the air conditioner. After determining the welding blockage condition, the diversion state of the air conditioner is adjusted to verify the welding blockage condition of the air conditioner to determine whether welding blockage occurs in the air conditioner under different diversion states, thereby comprehensively determining the overall welding blockage condition of the air conditioner to avoid directly treating the heat exchange pipeline as waste.

[0065] like Figure 4 As shown, the steps of adjusting the diversion state of the air conditioner and verifying the welding blockage of the air conditioner specifically include:

[0066] Step S410: Adjust the diversion state of the air conditioner and obtain the change of the refrigerant temperature at the heat exchanger outlet again.

[0067] After initially determining the weld blockage location, adjust the air conditioner's diversion status. During the adjustment process, you can first obtain and determine the current heat exchange pipeline of the heat exchanger; adjust the air conditioner to work with multi-way diversion or another heat exchange pipeline. After the adjustment, obtain the change of the refrigerant temperature at the heat exchanger outlet again; based on the changes obtained again, verify the weld blockage of the air conditioner.

[0068] Step S420: Based on the changes obtained again, verify the welding blockage condition of the air conditioner.

[0069] After the adjustment, the change of the refrigerant temperature at the outlet of the heat exchanger is obtained again; based on the change obtained again, the welding blockage of the air conditioner is verified.

[0070] If the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to the preset value, and the air conditioner was previously determined to be in a partially welded state, then the air conditioner is verified to be in a completely welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to the preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a partially welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than the preset value, and the air conditioner was previously determined to be in a partially welded state, then the air conditioner is verified to be in a partially welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than the preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a normal state.

[0071] Specifically, if the air conditioner is adjusted to work with another heat exchange pipeline, and the air conditioner is only provided with two heat exchange pipelines, then the other heat exchange pipeline is detected to see if it is blocked by welding. Similarly, the refrigerant temperature at the outlet of the heat exchanger is detected by a sensor. After a period of time after the start-up, for example, 1 minute later, the refrigerant temperature at the outlet of the heat exchanger is detected again to determine the change in the corresponding refrigerant temperature of the other heat exchange pipeline. If the change in the corresponding refrigerant temperature of the other heat exchange pipeline is less than or equal to the preset value, it is determined that the other heat exchange pipeline is partially blocked by welding. If the previous heat exchange pipeline is determined to be blocked by welding, it is determined that the air conditioner is in a completely blocked state, and a prompt is given to scrap it. If the change in the corresponding refrigerant temperature of the other heat exchange pipeline is greater than the preset value, it is determined that the other heat exchange pipeline is in a normal state. In other words, the other heat exchange pipeline is working normally. If the previously detected heat exchange pipeline is also normal, it is verified that the air conditioner is in a normal state. If the previously detected heat exchange pipeline is abnormal, the air conditioner is verified to be partially blocked by welding, and the welding blockage position of the air conditioner can be determined, so that the air conditioner can work in a normal diversion state without scrapping the entire heat exchanger. Although it is partially blocked by welding, the heat exchanger can still be used normally.

[0072] When there are three or more heat exchange pipelines, the flow diversion state can be further adjusted to determine the welding blockage of all heat exchange pipelines. In order to simplify the verification process, the air conditioner can be directly adjusted to multi-way diversion. If the air conditioner is adjusted to work with multi-way diversion, the multi-way is tested for welding blockage. The refrigerant temperature at the outlet of the heat exchanger is also detected by the sensor. After a period of time after the start, for example, 1 minute, the refrigerant temperature at the outlet of the heat exchanger is detected again to determine the change of the corresponding refrigerant temperature of all heat exchange pipelines.

[0073] If the change in the refrigerant temperature during multi-way diversion is less than or equal to the preset value, it is determined that the multi-way diversion is also not normal. In other words, if the air conditioner cannot work normally during multi-way diversion, it can usually be determined that the heat exchange pipeline of the entire heat exchanger is welded and blocked, and it is prompted to scrap it. If the change in the refrigerant temperature during multi-way diversion is greater than the preset value, it is determined that the air conditioner is in a normal state during multi-way diversion. In other words, the air conditioner can work normally during multi-way diversion. If the heat exchange pipelines detected before are also normal, although the specific conditions of all the heat exchange pipelines cannot be determined at this time, it can be quickly determined that the air conditioner can work normally during multi-way diversion, and the air conditioner can be locked to work in a multi-way state without scrapping the entire heat exchanger.

[0074] The following is a description of a control system for air conditioner welding blockage provided by an embodiment of the present invention. The control system for air conditioner welding blockage described below and the detection method described above can be referenced to each other.

[0075] like Figure 5 As shown, the control system of the air conditioner welding blockage includes: an acquisition module 510, a determination module 520 and a verification module 530.

[0076] Among them, the acquisition module 510 is used to obtain the change of the refrigerant temperature at the outlet of the heat exchanger; the determination module 520 is used to determine the welding blockage condition of the air conditioner based on the change; the verification module 530 is used to adjust the diversion state of the air conditioner and verify the welding blockage condition of the air conditioner.

[0077] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the detection method including: obtaining the change of the refrigerant temperature at the outlet of the heat exchanger; determining the welding blockage of the air conditioner based on the change; adjusting the diversion state of the air conditioner, and verifying the welding blockage of the air conditioner.

[0078] It should be noted that the electronic device in this embodiment can be a server, a PC, or other devices in specific implementation, as long as its structure includes the following: Figure 6The processor 610, communication interface 620, memory 630 and communication bus 640 are shown, wherein the processor 610, communication interface 620 and memory 630 communicate with each other through the communication bus 640, and the processor 610 can call the logic instructions in the memory 630 to execute the above method. This embodiment does not limit the specific implementation form of the electronic device.

[0079] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0080] Furthermore, an embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the detection method provided by the above-mentioned method embodiments, and the detection method includes: obtaining the change of the refrigerant temperature at the outlet of the heat exchanger; based on the change, determining the welding blockage condition of the air conditioner; adjusting the diversion state of the air conditioner, and verifying the welding blockage condition of the air conditioner.

[0081] On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the detection method provided in the above-mentioned embodiments. The detection method includes: obtaining the change of the refrigerant temperature at the outlet of the heat exchanger; based on the change, determining the welding blockage condition of the air conditioner; adjusting the diversion state of the air conditioner, and verifying the welding blockage condition of the air conditioner.

[0082] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0083] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0085] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A method for detecting welding blockage of an air conditioner, characterized in that: The heat exchanger of the air conditioner is provided with a variable diverter device, which includes a reversing valve, a first diverter pipeline, a second diverter pipeline and at least two heat exchange pipelines, the first diverter pipeline is connected to the second diverter pipeline through at least two of the heat exchange pipelines, the first diverter pipeline and the second diverter pipeline are both provided with a main pipeline and a plurality of branch pipelines, and a check valve is provided in some of the branch pipelines, the reversing valve is a two-position four-way reversing valve, the reversing valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port, the reversing valve has a first position and a second position, the first connecting port is connected to the refrigerant inlet, the first connecting port is connected to the refrigerant inlet, and the second connecting port is connected to the refrigerant inlet. The three-way connecting port is connected to the refrigerant outlet; when multi-way diversion is performed, the reversing valve is in the first position, the first connecting port is connected to the second connecting port, the third connecting port is connected to the fourth connecting port, the second connecting port is connected to the first diversion pipeline, and the fourth connecting port is connected to the second diversion pipeline; when single-way diversion is performed, the reversing valve is in the second position, the first connecting port is connected to the fourth connecting port, the third connecting port is connected to the second connecting port, the second connecting port is connected to the second diversion pipeline, and the fourth connecting port is connected to the first diversion pipeline. The detection method of air conditioning welding blockage includes: Obtain the change of refrigerant temperature at the outlet of the heat exchanger; Based on the change, determine the welding blockage of the air conditioner. If the change of the refrigerant temperature at the outlet of the heat exchanger is less than or equal to a preset value, determine that the air conditioner is in a partial welding blockage state; if the change of the refrigerant temperature at the outlet of the heat exchanger is greater than a preset value, determine that the air conditioner is in a normal state; Adjust the diversion state of the air conditioner and verify the welding and blocking condition of the air conditioner; The step of adjusting the diversion state of the air conditioner and verifying the welding blockage of the air conditioner includes: Adjusting the diversion state of the air conditioner and obtaining again the change of the refrigerant temperature at the outlet of the heat exchanger; Based on the changes obtained again, the welding blockage condition of the air conditioner is verified. If the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to the preset value, and the air conditioner was previously determined to be in a partially welded state, then the air conditioner is verified to be in a completely welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is less than or equal to the preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a partially welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than the preset value, and the air conditioner was previously determined to be in a partially welded state, then the air conditioner is verified to be in a partially welded state; if the change in the refrigerant temperature at the heat exchanger outlet obtained again is greater than the preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a normal state.

2. The method for detecting welding blockage of air conditioner according to claim 1, characterized in that: The step of adjusting the air conditioning diversion state comprises: Obtain and determine the current heat exchange pipeline of the heat exchanger; The air conditioner is adjusted to work with multi-path flow or with another heat exchange pipeline.

3. The method for detecting welding blockage of air conditioner according to claim 2, characterized in that: After the step of verifying that the air conditioner is in a partially welded state, the following steps are further included: The welding and blocking position of the air conditioner is determined, and the air conditioner is locked to work in a normal diversion state.

4. A control system for air conditioning welding blockage, characterized in that: The heat exchanger of the air conditioner is provided with a variable diverter device, which includes a reversing valve, a first diverter pipeline, a second diverter pipeline and at least two heat exchange pipelines, the first diverter pipeline is connected to the second diverter pipeline through at least two of the heat exchange pipelines, the first diverter pipeline and the second diverter pipeline are both provided with a main pipeline and a plurality of branch pipelines, and a check valve is provided in some of the branch pipelines, the reversing valve is a two-position four-way reversing valve, the reversing valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port, the reversing valve has a first position and a second position, the first connecting port is connected to the refrigerant inlet, the first connecting port is connected to the refrigerant inlet, and the second connecting port is connected to the refrigerant inlet. The three-way connecting port is connected to the refrigerant outlet; when multi-way shunt is applied, the reversing valve is in the first position, the first connecting port is connected to the second connecting port, the third connecting port is connected to the fourth connecting port, the second connecting port is connected to the first shunt pipeline, and the fourth connecting port is connected to the second shunt pipeline; when single-way shunt is applied, the reversing valve is in the second position, the first connecting port is connected to the fourth connecting port, the third connecting port is connected to the second connecting port, the second connecting port is connected to the second shunt pipeline, and the fourth connecting port is connected to the first shunt pipeline. The control system of the air conditioner Handu includes: An acquisition module is used to obtain the change of the refrigerant temperature at the outlet of the heat exchanger; A determination module, for determining the welding blockage of the air conditioner based on the change, if the change of the refrigerant temperature at the outlet of the heat exchanger is less than or equal to a preset value, then determining that the air conditioner is in a partial welding blockage state; if the change of the refrigerant temperature at the outlet of the heat exchanger is greater than a preset value, then determining that the air conditioner is in a normal state; A verification module is used to adjust the diversion state of the air conditioner and verify the welding blockage condition of the air conditioner. Specifically, the diversion state of the air conditioner is adjusted to obtain the change of the refrigerant temperature at the outlet of the heat exchanger again; based on the change obtained again, the welding blockage condition of the air conditioner is verified. If the change of the refrigerant temperature at the outlet of the heat exchanger obtained again is less than or equal to a preset value, and the air conditioner was previously determined to be in a partially welded blockage state, then the air conditioner is verified to be in a completely welded blockage state; if the change of the refrigerant temperature at the outlet of the heat exchanger obtained again is less than or equal to a preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a partially welded blockage state; if the change of the refrigerant temperature at the outlet of the heat exchanger obtained again is greater than the preset value, and the air conditioner was previously determined to be in a partially welded blockage state, then the air conditioner is verified to be in a partially welded blockage state; if the change of the refrigerant temperature at the outlet of the heat exchanger obtained again is greater than the preset value, and the air conditioner was previously determined to be in a normal state, then the air conditioner is verified to be in a normal state.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method for detecting welding blockage of an air conditioner as described in any one of claims 1 to 3 is implemented.

6. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for detecting welding blockage of an air conditioner as described in any one of claims 1 to 3 is implemented.

7. A computer program product, comprising a computer program stored on a non-transitory computer-readable storage medium, wherein the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer is able to execute the method for detecting welding blockage of an air conditioner as described in any one of claims 1 to 3.

Images