Method and device for disassembling air conditioner, air conditioner and storage medium

Abstract

The invention discloses a method for disassembling an air conditioner, and the air conditioner comprises a one-way valve which is arranged at an exhaust pipe connected between an outdoor heat exchanger and a four-way valve and an outlet of a compressor, so that a refrigerant flowing into the outdoor heat exchanger does not flow back to the compressor; the electronic expansion valve is arranged between the indoor heat exchanger and the outdoor heat exchanger; the strong current mechanical switch is used for controlling the air conditioner to be powered on or powered off according to the signal; the method comprises the steps that in response to a disassembly instruction, the air conditioner is controlled to run in a refrigeration mode, and the running frequency of a compressor is adjusted to the highest frequency; electronic expansion valves are all controlled to be closed, a compressor, an indoor fan and an outdoor fan are shut down, and a strong-current mechanical switch is powered off; after the air conditioner is installed and the strong-current mechanical switch is powered on again, the electronic expansion valves are controlled to be completely opened and then closed; and the air conditioner is controlled to run in a refrigeration mode, and the running states of the compressor, the indoor fan and the outdoor fan are controlled according to the exhaust temperature of the compressor so that system refrigerants can be sufficient.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for disassembling an air conditioner, an air conditioner, and a storage medium. Background Art

[0002] At present, with the improvement of people's living standards, people have put forward higher and higher requirements for their living environment. In order to maintain a comfortable ambient temperature, air conditioners have become an indispensable device in people's lives. However, in the process of moving the air conditioner, it is necessary to disassemble it first.

[0003] The related technology discloses a method of manual disassembly. Under the existing mode of the air conditioner, the disassembler needs to recover the refrigerant of the air conditioner to the outdoor unit before disassembling the air conditioner, and then cut off the power before disassembling the air conditioner. Currently, the disassembler operates the air conditioner in cooling mode, then closes the high-pressure valve and the low-pressure valve so that the refrigerant can enter the outdoor unit of the air conditioner, and then cuts off the power to disassemble the air conditioner. After the disassembly is completed, the high-pressure valve is opened, the low-pressure valve is opened, and then the power is turned on.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] During the manual disassembly process, the refrigerant recovery steps are cumbersome, and if the disassembler forgets to turn off the power before disassembling the machine, it will cause great safety hazards.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a method and device for disassembling an air conditioner, an air conditioner, and a storage medium, so that during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve or manually cut off the power, so that the air conditioner can intelligently complete the recovery and power-off of the air conditioner refrigerant, reduce the operating steps of the disassembler, and automatically cut off the power to avoid the safety hazard of the disassembler forgetting to cut off the power when disassembling the machine, making the disassembly operation simple, convenient, safe and reliable.

[0009] In some embodiments, the air conditioner includes: a one-way valve, which is arranged at the outlet of the exhaust pipe connected between the outdoor heat exchanger and the four-way valve and the compressor, so that the refrigerant after flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve, which is arranged between the indoor heat exchanger and the outdoor heat exchanger; a high-voltage mechanical switch, which is used to control the air conditioner to power on or off according to a signal; the method includes: in response to a disassembly instruction, controlling the air conditioner to operate in a cooling mode, and adjusting the operating frequency of the compressor to the highest frequency; controlling the electronic expansion valves to be completely closed, the compressor, the indoor fan, and the outdoor fan to stop, and the high-voltage mechanical switch to be powered off; after the air conditioner is installed and the high-voltage mechanical switch is powered on again, controlling the electronic expansion valves to be completely opened and then closed; controlling the air conditioner to operate in a cooling mode, and controlling the operating status of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

[0010] Optionally, adjusting the operating frequency of the compressor to the maximum frequency includes: controlling the compressor to increase the operating frequency at a first frequency increase rate; controlling the compressor to increase the operating frequency at a second frequency increase rate when the difference between the total circuit current and the system maximum frequency limiting current satisfies a first difference condition; stopping adjusting the operating frequency of the compressor when the difference between the total circuit current and the system maximum frequency limiting current satisfies a second difference condition, or when the operating frequency of the compressor reaches the maximum frequency; wherein the first frequency increase rate is greater than the second frequency increase rate.

[0011] Optionally, the maximum frequency-limited current of the system may be 13 A, the maximum frequency may be 70 Hz, the first frequency increase rate may be 5 Hz / s, and the second frequency increase rate may be 1 Hz / s.

[0012] Optionally, the difference between the total circuit current and the system maximum frequency-limited current satisfies a first difference condition, including: the difference between the total circuit current and the system maximum frequency-limited current is equal to a first current difference. Specifically, the value of the first current difference may be 1A.

[0013] Optionally, the difference between the total circuit current and the system maximum frequency-limiting current satisfies a second difference condition, or the situation in which the operating frequency of the compressor rises to the maximum frequency includes: the difference between the total circuit current and the system maximum frequency-limiting current satisfies the second difference condition, and the operating frequency of the compressor reaches a first frequency value; or, the operating frequency of the compressor rises to the maximum frequency, and the difference between the total circuit current and the system maximum frequency-limiting current satisfies the second difference condition; wherein, the first frequency value is less than the maximum frequency.

[0014] Specifically, the difference between the total circuit current and the system maximum frequency-limiting current satisfies a second difference condition, including: the difference between the total circuit current and the system maximum frequency-limiting current is equal to zero.

[0015] Specifically, the difference between the total circuit current and the system maximum frequency-limiting current satisfies a third difference condition, including: the difference between the total circuit current and the system maximum frequency-limiting current is less than the first current difference and greater than zero.

[0016] Specifically, the first frequency value may be 67 Hz.

[0017] Optionally, all electronic expansion valves are controlled to be closed, the compressor, indoor fan and outdoor fan are stopped, and the high-voltage mechanical switch is powered off, including: controlling the electronic expansion valves to open; when all the electronic expansion valves are open, controlling the electronic expansion valves to close; when all the electronic expansion valves are closed, controlling the compressor to run; when the compressor running time reaches a first time length, controlling the compressor, indoor fan and outdoor fan to stop, and controlling the high-voltage mechanical switch to power off.

[0018] Optionally, the value of the first duration may be 2 minutes.

[0019] Optionally, controlling the electronic expansion valve to open includes: controlling the electronic expansion valve to open at a first valve opening speed value. Specifically, the first valve opening speed value may be 10 steps / second.

[0020] Optionally, controlling the electronic expansion valve to close includes: controlling the electronic expansion valve to close at a first closing speed value, the total number of closing steps being the first step value, and the closing time being the second time. Specifically, the first closing speed value may be 10 steps / second. The first step value may be 300 steps.

[0021] The second duration value can be 35s.

[0022] Optionally, controlling the electronic expansion valve to be fully opened and then closed includes: controlling the electronic expansion valve to be opened; and controlling the electronic expansion valve to be closed when the electronic expansion valve is fully opened.

[0023] Optionally, controlling the electronic expansion valve to open includes: controlling the electronic expansion valve to open at a second valve opening speed value, and the valve opening duration is a third duration. Specifically, the second valve opening speed value may be 10 steps / second. The third duration may be 35 seconds.

[0024] Optionally, controlling the electronic expansion valve to close includes: controlling the electronic expansion valve to close at a second closing speed value, the total number of closing steps being the second step value, and the closing time being a fourth time. Specifically, the second closing speed value may be 10 steps / second. The second step value may be 200 steps.

[0025] The value of the fourth duration may be 20s.

[0026] Optionally, the operating states of the compressor, indoor fan and outdoor fan are controlled according to the exhaust temperature of the compressor to ensure sufficient system refrigerant, including: determining whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be judged again based on the exhaust temperature of the compressor and the first preset system exhaust temperature, and the first preset system exhaust temperature corresponds to the second frequency value; when the system refrigerant quantity is normal, the compressor, indoor fan and outdoor fan are all controlled to stop, and the electronic expansion valve is controlled to open to complete disassembly and assembly, and enter standby state; when the system refrigerant quantity needs to be judged again whether it is normal, the compressor is controlled to increase the frequency to the second frequency value, and according to the exhaust temperature of the compressor and the second preset system exhaust temperature, it is determined whether the system refrigerant quantity is normal or insufficient, and the second preset system exhaust temperature corresponds to the third frequency value; according to whether the system refrigerant quantity is normal or insufficient, the operating states of the compressor, indoor fan and outdoor fan are controlled to ensure sufficient system refrigerant.

[0027] Specifically, the value of the first preset system exhaust temperature may be 44° C., and the value of the second preset system exhaust temperature may be 61° C. The value of the second frequency value may be 30 Hz. The value of the third frequency value may be 40 Hz.

[0028] Optionally, according to the exhaust temperature of the compressor and the first preset system exhaust temperature corresponding to the frequency value of the current compressor, it is determined whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be judged again whether it is normal, including: when the exhaust temperature of the compressor is less than or equal to the sum of the first preset system exhaust temperature and the set temperature difference value, it is determined that the system refrigerant quantity is normal; when the exhaust temperature of the compressor is greater than the sum of the first preset system exhaust temperature and the set temperature difference value, it is determined that the system refrigerant quantity needs to be judged again whether it is normal. Specifically, the value of the set temperature difference value can be 2°C.

[0029] Optionally, controlling the electronic expansion valve to open includes: controlling the electronic expansion valve to open at a third valve opening speed value, and the valve opening time is a fourth time length. Specifically, the third valve opening speed value may be 10 steps / second. The fourth time length may be 25 seconds.

[0030] Optionally, controlling the compressor to increase the frequency to a third frequency value includes: controlling the compressor to increase the frequency to the third frequency value at a third frequency increase rate.

[0031] Optionally, the system refrigerant quantity is determined to be normal or short based on the exhaust temperature of the compressor and the second preset system exhaust temperature, including: when the exhaust temperature of the compressor is less than or equal to the sum of the second preset system exhaust temperature and a set temperature difference value, the system refrigerant quantity is determined to be normal; when the exhaust temperature of the compressor is greater than the sum of the second preset system exhaust temperature and the set temperature difference value, the system refrigerant quantity is determined to be short.

[0032] Optionally, depending on whether the system refrigerant quantity is normal or insufficient, the operating status of the compressor, indoor fan and outdoor fan is controlled to ensure sufficient system refrigerant, including: when the system refrigerant quantity is normal, the compressor, indoor fan and outdoor fan are all controlled to stop, and the electronic expansion valve is controlled to open to complete disassembly and assembly, and enter standby state; when the system refrigerant quantity is insufficient, the compressor, indoor fan and outdoor fan are all controlled to stop; and a prompt of system refrigerant shortage is issued.

[0033] Optionally, after controlling the electronic expansion valve to open to complete the disassembly and assembly and before entering the standby state, the method further includes: issuing a prompt indicating that the disassembly and assembly is completed. Specifically, issuing a prompt indicating that the disassembly and assembly is completed includes: controlling the display module to stop displaying "disassembly and assembly is in progress". More specifically, controlling the display module to stop displaying "disassembly and assembly is in progress" includes: controlling the display module to stop displaying the word "CZ".

[0034] Specifically, issuing a prompt of system refrigerant shortage includes: controlling the display module to continuously display the prompt of system refrigerant shortage. More specifically, controlling the display module to continuously display the prompt of system refrigerant shortage includes: controlling the display module to continuously display the words "F13".

[0035] Optionally, controlling the electronic expansion valve to open includes: controlling the electronic expansion valve to open at a fourth valve opening speed value, and the valve opening time length is a fifth time length. Specifically, the fourth valve opening speed value may be 10 steps / second. The fifth time length may be 25 seconds.

[0036] Optionally, controlling the operation of the compressor, the indoor fan, and the outdoor fan includes: controlling the indoor fan and the outdoor fan to operate at a high wind speed, and controlling the compressor to increase the frequency to a second frequency value at a fourth increase frequency rate.

[0037] Specifically, the value of the fourth frequency increase rate may be 3 Hz / s.

[0038] Optionally, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the method further includes: continuously issuing a prompt of disassembly and assembly. Specifically, continuously issuing a prompt of disassembly and assembly includes: controlling the display module to continuously display disassembly and assembly. More specifically, controlling the display module to continuously display disassembly and assembly includes: controlling the display module to continuously display the word "CZ".

[0039] Optionally, after controlling the air conditioner to operate in cooling mode and before adjusting the operating frequency of the compressor to the highest frequency, the method further includes: controlling both the indoor fan and the outdoor fan to operate at a high wind speed.

[0040] In some embodiments, the air conditioner includes: a one-way valve, which is arranged at the outlet of the exhaust pipe connected between the outdoor heat exchanger and the four-way valve and the compressor, so that the refrigerant after flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve, which is arranged between the indoor heat exchanger and the outdoor heat exchanger; a strong electric mechanical switch, which is used to control the air conditioner to power on or off according to a signal; the device includes: a first control module, which is configured to respond to a disassembly instruction, control the air conditioner to operate in a cooling mode, and adjust the operating frequency of the compressor to the highest frequency; a second control module, which is configured to control the electronic expansion valve to be completely closed, the compressor, the indoor fan, and the outdoor fan to stop, and the strong electric mechanical switch to be powered off; a third control module, which is configured to control the electronic expansion valve to be fully opened and then closed after the air conditioner is installed and the strong electric mechanical switch is powered on again; a fourth control module, which is configured to control the air conditioner to operate in a cooling mode, and control the operating status of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

[0041] In some embodiments, the device includes a processor and a memory storing program instructions, and the processor is configured to execute the method for disassembling an air conditioner when running the program instructions.

[0042] In some embodiments, the air conditioner includes: an air conditioner body, including: a one-way valve, arranged at the exhaust pipe connected between the outdoor heat exchanger and the four-way valve and the outlet of the compressor, so that the refrigerant after flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve, arranged between the indoor heat exchanger and the outdoor heat exchanger; a high-voltage mechanical switch, used to control the power on or off of the air conditioner according to a signal; the device for disassembling the air conditioner is installed on the air conditioner body.

[0043] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, they execute the method for disassembling an air conditioner.

[0044] The method and device for disassembling an air conditioner, the air conditioner, and the storage medium provided in the embodiments of the present disclosure can achieve the following technical effects:

[0045] During the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor will not flow back to the compressor after flowing into the outdoor heat exchanger. First, the air conditioner is operated in the cooling mode, and the compressor frequency is adjusted to the highest frequency to allow the refrigerant to enter the outdoor unit of the air conditioner. All electronic expansion valves are controlled to be closed, the compressor, indoor fan, and outdoor fan are stopped, and the strong electric mechanical switch is powered off. The air conditioner is disassembled, so that the air conditioner can intelligently complete the recovery and power off of the air conditioner refrigerant, reducing the operation steps of the disassembler. Since the strong electric mechanical switch can realize intelligent control of the air conditioner power on or off, it avoids the safety hazards of the disassembler forgetting to power off and disassemble the machine, making the disassembly operation simple, convenient, safe and reliable. When the air conditioner is disassembled and the strong electric mechanical switch is powered on again, the electronic expansion valve is controlled to open first, and then the air conditioner is controlled to operate in the cooling mode. The operating status of the compressor and the indoor and outdoor fans is controlled according to the exhaust temperature of the compressor, which is conducive to better determining whether the system refrigerant is short of refrigerant, so as to remind the replenishment of refrigerant and ensure the sufficient amount of refrigerant in the system after disassembly.

[0046] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0048] Figure 1 is a schematic diagram of the structure of an air conditioner provided by an embodiment of the present disclosure;

[0049] Figure 2 is a schematic diagram of a method for disassembling an air conditioner provided by an embodiment of the present disclosure;

[0050] Figure 3 is a schematic diagram of another method for disassembling an air conditioner provided by an embodiment of the present disclosure;

[0051] Figure 4 is a schematic diagram of another method for disassembling an air conditioner provided by an embodiment of the present disclosure;

[0052] Figure 5 is a schematic diagram of a device for disassembling an air conditioner provided by an embodiment of the present disclosure;

[0053] Figure 6 is a schematic diagram of another device for disassembling an air conditioner provided by an embodiment of the present disclosure;

[0054] Figure 7 It is a schematic diagram of an air conditioner provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0056] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0057] Unless otherwise stated, the term "plurality" means two or more.

[0058] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0059] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0060] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0061] Combination Figure 1 As shown, the embodiment of the present disclosure provides an air conditioner, including: a one-way valve 1, an electronic expansion valve 2 and a strong electric mechanical switch. The one-way valve 1 is arranged at the outlet of the exhaust pipe connected between the outdoor heat exchanger 4 and the four-way valve 5 and the compressor 6, so that the refrigerant after flowing into the outdoor heat exchanger 4 does not flow back to the compressor 6. The electronic expansion valve 2 is arranged between the indoor heat exchanger 3 and the outdoor heat exchanger 4. The strong electric mechanical switch is used to control the power on or off of the air conditioner according to the signal.

[0062] Optionally, the air conditioner further comprises: a display module. The display module is connected to the processor, and when the word "CZ" is displayed, it indicates that disassembly is in progress; when the word "F13" is displayed, it indicates that the refrigerant is short; when the word "CZ" or "F13" is not displayed, it indicates that disassembly is completed and the refrigerant is not short.

[0063] Optionally, the air conditioner further includes an exhaust temperature detection sensor, which is arranged on the one-way valve and is used to detect the exhaust temperature of the compressor.

[0064] With the air conditioner provided by the disclosed embodiment, during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor can be controlled to flow into the outdoor heat exchanger, and the refrigerant does not flow back to the compressor, so that the air conditioner can intelligently complete the recovery and power-off of the refrigerant of the air conditioner, reducing the operation steps of the disassembler. Since the high-voltage mechanical switch can realize intelligent control of the power on or off of the air conditioner, the safety hazard of the disassembler forgetting to cut off the power when disassembling the machine is avoided, making the disassembly operation simple, convenient, safe and reliable.

[0065] Based on the above air conditioner, combined with Figure 2 As shown, the embodiment of the present disclosure provides a method for disassembling an air conditioner, comprising:

[0066] S201, in response to a disassembly instruction, the air conditioner controls the air conditioner to operate in a cooling mode and adjusts the operating frequency of the compressor to a maximum frequency.

[0067] S202, the air conditioner controls all electronic expansion valves to close, the compressor, indoor fan, and outdoor fan to stop, and the high-voltage mechanical switch to cut off power.

[0068] S203, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the air conditioner controls the electronic expansion valves to open and then close.

[0069] S204, the air conditioner controls the air conditioner to operate in cooling mode, and controls the operating states of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

[0070] By adopting the method for disassembling an air conditioner provided by the embodiment of the present disclosure, during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor can flow into the outdoor heat exchanger and not flow back to the compressor. First, the air conditioner is operated in the cooling mode, and the compressor frequency is adjusted to the highest frequency to allow the refrigerant to enter the outdoor unit of the air conditioner. The electronic expansion valves are controlled to be completely closed, the compressor, the indoor fan, and the outdoor fan are stopped, the high-voltage mechanical switch is powered off, and the air conditioner is disassembled, so that the air conditioner can intelligently complete the recovery and power-off of the refrigerant of the air conditioner, thereby reducing the operation steps of the disassembler. Since the high-voltage mechanical switch can realize intelligent control of the power on or off of the air conditioner, the safety hazard of the disassembler forgetting to turn off the power when disassembling the machine is avoided, and the disassembly operation is simple, convenient, safe and reliable. When the air conditioner is disassembled and the high-voltage mechanical switch is powered on again, the electronic expansion valve is controlled to open first, and then the air conditioner is controlled to operate in cooling mode. The operating status of the compressor and indoor and outdoor fans is controlled according to the exhaust temperature of the compressor. This is conducive to better determining whether the system is short of refrigerant, so as to remind you to replenish refrigerant and ensure that there is sufficient refrigerant in the system after disassembly.

[0071] Optionally, the air conditioner adjusts the operating frequency of the compressor to a maximum frequency, including:

[0072] The air conditioner controls the compressor to increase the operating frequency at a first frequency increase rate.

[0073] When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increase rate.

[0074] When the difference between the total circuit current and the system maximum frequency-limiting current satisfies the second difference condition, or the operating frequency of the compressor rises to the maximum frequency, the air conditioner stops adjusting the operating frequency of the compressor.

[0075] The first frequency increase rate is greater than the second frequency increase rate.

[0076] In this way, after running the cooling mode, the compressor frequency is first increased at a faster frequency increase rate. If the difference between the total circuit current and the system maximum frequency limit current meets the first difference condition, the compressor frequency is increased at a slower frequency increase rate until the difference between the total circuit current and the system maximum frequency limit current meets the second difference condition, or the operating frequency of the compressor is increased to the maximum frequency. This is conducive to adjusting the operating frequency of the compressor to the highest frequency more quickly, allowing the refrigerant in the indoor unit to flow into the outdoor unit more quickly, increasing the speed of refrigerant recovery of the air conditioner, and helping to avoid the total circuit current exceeding the system maximum frequency limit current due to the compressor frequency being too high.

[0077] Optionally, the value of the system maximum frequency-limited current can be 13A, and the value of the maximum frequency can be 70Hz. The value of the first frequency increase rate can be 5Hz / s. The value of the second frequency increase rate can be 1Hz / s. The values ​​of the system maximum frequency-limited current, the maximum frequency, the first frequency increase rate, and the second frequency increase rate can be adjusted and set according to the properties of the air conditioner, and are not listed one by one here. In this way, limiting the values ​​of the system maximum frequency-limited current, the maximum frequency, the first frequency increase rate, and the second frequency increase rate can help to better improve the speed of refrigerant recovery of the air conditioner, and avoid the total circuit current exceeding the system frequency-limited current due to the excessive frequency of the compressor.

[0078] Optionally, the difference between the total circuit current and the system maximum frequency-limiting current satisfies the first difference condition, including: the difference between the total circuit current and the system maximum frequency-limiting current is equal to the first current difference. Specifically, the value of the first current difference can be 1A. In this way, when the difference between the total circuit current and the system maximum frequency-limiting current is small, the compressor is controlled to continue to increase the frequency at a slower frequency-increasing rate, so as to avoid the total circuit current exceeding the system maximum frequency-limiting current due to the excessive frequency of the compressor.

[0079] Optionally, the difference between the total circuit current and the system maximum frequency-limited current satisfies the second difference condition, or the situation where the operating frequency of the compressor rises to the maximum frequency includes: the difference between the total circuit current and the system maximum frequency-limited current satisfies the second difference condition, and the operating frequency of the compressor reaches the first frequency value. Or, the operating frequency of the compressor rises to the maximum frequency, and the difference between the total circuit current and the system maximum frequency-limited current satisfies the second difference condition. Among them, the first frequency value is less than the maximum frequency. In this way, if the operating frequency of the compressor reaches a smaller first frequency value and the difference between the total circuit current and the system maximum frequency-limited current satisfies the second difference condition, or, the operating frequency of the compressor reaches a larger maximum frequency and the difference between the total circuit current and the system maximum frequency-limited current satisfies the third difference condition, the compressor is controlled to stop frequency increase, which is conducive to avoiding the total circuit current exceeding the system maximum frequency-limited current due to the compressor's excessive frequency.

[0080] Specifically, the difference between the total circuit current and the system maximum frequency-limited current satisfies the second difference condition, including: the difference between the total circuit current and the system maximum frequency-limited current is equal to zero. In this way, if the total circuit current is equal to the system maximum frequency-limited current, and the operating frequency of the compressor reaches the first frequency value but does not reach the maximum frequency, if the compressor continues to increase the frequency, it will cause the total circuit current to exceed the system maximum frequency-limited current. At this time, the compressor is controlled to stop increasing the frequency and continue to operate at the first frequency. While increasing the speed of refrigerant recovery of the air conditioner, it is helpful to avoid the total circuit current exceeding the system maximum frequency-limited current due to the excessive frequency of the compressor.

[0081] Specifically, the difference between the total circuit current and the system's maximum frequency-limiting current satisfies the third difference condition, including: the difference between the total circuit current and the system's maximum frequency-limiting current is less than the first current difference and greater than zero. In this way, if the difference between the total circuit current and the maximum frequency-limiting current is small but does not reach the system's maximum frequency-limiting current, and the compressor's operating frequency has reached the highest frequency at this time, the frequency cannot be increased further at this time. While avoiding the total circuit current exceeding the system's maximum frequency-limiting current due to the compressor's excessive frequency, it is beneficial to increase the speed of the air conditioner's refrigerant recovery.

[0082] Specifically, the value of the first frequency value can be 67Hz. The value of the first frequency value can be adjusted and set according to the properties of the air conditioner, which are not listed here one by one. In this way, the first frequency value differs from the maximum frequency by 3Hz, and the operating frequency of the compressor is close to the maximum frequency. If the total circuit current has reached the maximum frequency-limiting current of the system, in order to avoid the total circuit current exceeding the maximum frequency-limiting current of the system, the compressor cannot continue to increase the frequency. At this time, the compressor still maintains a relatively high operating frequency, and the speed of the air conditioner refrigerant recovery can still maintain a relatively high speed.

[0083] Optionally, the air conditioner controls all electronic expansion valves to be closed, the compressor, the indoor fan, and the outdoor fan to be stopped, and the strong electrical mechanical switch to be powered off, including:

[0084] The air conditioner controls the electronic expansion valve to open.

[0085] When the electronic expansion valve is fully opened, the air conditioner controls the electronic expansion valve to close.

[0086] When all electronic expansion valves are closed, the air conditioner controls the compressor to run.

[0087] When the compressor operation time reaches a first time length, the air conditioner controls the compressor, the indoor fan, and the outdoor fan to stop, and controls the high-voltage mechanical switch to cut off power.

[0088] In this way, when the frequency increase of the compressor is completed, the electronic expansion valve is kept open first, which is conducive to the flow of refrigerant into the outdoor unit. Then the electronic expansion valve is controlled to close, and after the electronic expansion valve is closed, the compressor is controlled to run for the first time, so that the refrigerant in the compressor continues to flow into the outdoor unit. Since the electronic expansion valve has been closed, the refrigerant can no longer flow back to the indoor unit, which is conducive to the flow of all the refrigerant in the indoor unit into the outdoor unit. At this time, the compressor, indoor fan, and outdoor fan are stopped, the high-voltage mechanical switch is powered off, and the air conditioner is disassembled, so that the air conditioner can intelligently complete the recovery and power off of the air conditioner refrigerant, reducing the operation steps of the disassembler.

[0089] Optionally, the value of the first time length may be 2 minutes. The value of the first time length may be adjusted and set according to the properties of the air conditioner, which is not listed here one by one. In this way, after the electronic expansion valve is closed, the compressor is allowed to continue to run for 2 minutes before stopping, which is conducive to allowing all the refrigerant in the indoor unit to flow into the outdoor unit.

[0090] Optionally, the air conditioner controls the electronic expansion valve to open, including: the air conditioner controls the electronic expansion valve to open at a first valve opening speed value. Specifically, the first valve opening speed value may be 10 steps / second. In this way, the electronic expansion valve opens at the first valve opening speed value, which is conducive to faster flow of refrigerant into the outdoor unit.

[0091] Optionally, the air conditioner controls the electronic expansion valve to close the valve, including: the air conditioner controls the electronic expansion valve to close the valve at a first valve closing speed value, the overall number of valve closing steps is the first step value, and the valve closing time is the second time. Specifically, the value of the first valve closing speed value can be 10 steps / second. The value of the first step value can be 300 steps. The value of the second time can be 35s. The values ​​of the first valve closing speed value, the first step value, and the second time can be adjusted and set according to the properties of the air conditioner, which are not listed one by one here. In this way, after the electronic expansion valve is fully opened, the valve is closed at the first valve closing speed value, and the overall number of valve closing steps and valve closing time are limited, which is conducive to faster closing of the electronic expansion valve, thereby facilitating faster flow of refrigerant into the outdoor unit.

[0092] Optionally, the air conditioner controls the electronic expansion valve to be fully opened and then closed, including: the air conditioner controls the electronic expansion valve to open. When the electronic expansion valve is fully opened, the air conditioner controls the electronic expansion valve to close. In this way, after the air conditioner is installed and the strong electric mechanical switch is powered on again, the electronic expansion valve is controlled to be fully opened and then closed, so that the air conditioner can intelligently complete the opening and closing of the electronic expansion valve after installation, reducing the operation steps of the dismantling worker.

[0093] Optionally, the air conditioner controls the electronic expansion valve to open, including: the air conditioner controls the electronic expansion valve to open at a second valve opening speed value, and the valve opening time is a third time length. Specifically, the second valve opening speed value can be 10 steps / second. The third time length can be 35s. The second valve opening speed value and the third time length can be adjusted and set according to the properties of the air conditioner, which are not listed here one by one. In this way, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, it is helpful to control the electronic expansion valve to open all at a faster speed, thereby speeding up the disassembly and assembly of the machine.

[0094] Optionally, the air conditioner controls the electronic expansion valve to close the valve, including: the air conditioner controls the electronic expansion valve to close the valve at a second valve closing speed value, the overall number of valve closing steps is the second step value, and the valve closing time is a fourth time length. Specifically, the value of the second valve closing speed value can be 10 steps / second. The value of the second step value can be 200 steps. The value of the fourth time length can be 20s. The values ​​of the second valve closing speed value, the second step value, and the fourth time length can be adjusted and set according to the properties of the air conditioner, which are not listed one by one here. In this way, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, after the electronic expansion valves are all opened, it is beneficial to control the electronic expansion valves to close all faster, thereby speeding up the disassembly and assembly of the machine.

[0095] Optionally, the air conditioner controls the operating states of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system, including:

[0096] The air conditioner determines whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be re-determined based on the exhaust temperature of the compressor and the first preset system exhaust temperature, and the first preset system exhaust temperature corresponds to the second frequency value.

[0097] When the amount of refrigerant in the system is normal, the air conditioner controls the compressor, indoor fan, and outdoor fan to stop. The air conditioner also controls the electronic expansion valve to open, issues a prompt indicating that the disassembly and assembly is complete, and enters the standby state.

[0098] When the system refrigerant quantity needs to be judged again whether it is normal, the air conditioner controls the compressor to increase the frequency to the second frequency value, and determines whether the system refrigerant quantity is normal or insufficient based on the exhaust temperature of the compressor and the second preset system exhaust temperature, and the second preset system exhaust temperature corresponds to the third frequency value. According to whether the system refrigerant quantity is normal or insufficient, the air conditioner controls the operating status of the compressor, indoor fan, and outdoor fan to ensure sufficient system refrigerant.

[0099] Specifically, the value of the first preset system exhaust temperature may be 44°C, and the value of the second preset system exhaust temperature may be 61°C. The value of the second frequency value may be 30 Hz. The value of the third frequency value may be 40 Hz. The values ​​of the first preset system exhaust temperature, the second preset system exhaust temperature, the second frequency value, and the third frequency value may be adjusted and set according to the properties of the air conditioner, which are not listed here one by one.

[0100] In this way, the operation of the compressor and indoor and outdoor fans is controlled first, and then the refrigerant is judged for the first time based on the exhaust temperature of the compressor and the first preset system exhaust temperature. If normal, the compressor, indoor fan, and outdoor fan are all stopped, and the electronic expansion valve is opened. The machine is disassembled and enters the standby state. If the refrigerant is judged to be abnormal for the first time, the compressor is frequency-upgraded first, and then the refrigerant is judged for the second time based on the exhaust temperature of the compressor and the second preset system exhaust temperature corresponding to the frequency after the frequency increase. The operating status of the compressor, indoor fan, and outdoor fan is then controlled based on whether the refrigerant is short of refrigerant. This is conducive to better judging whether the system refrigerant is short of refrigerant, so as to remind the system to replenish refrigerant and ensure that there is enough refrigerant in the system after disassembly.

[0101] Optionally, the air conditioner determines whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be judged again based on the exhaust temperature of the compressor and the first preset system exhaust temperature corresponding to the frequency value of the current compressor, including: when the exhaust temperature of the compressor is less than or equal to the sum of the first preset system exhaust temperature and the set temperature difference value, the air conditioner determines that the system refrigerant quantity is normal; when the exhaust temperature of the compressor is greater than the sum of the first preset system exhaust temperature and the set temperature difference value, the air conditioner determines that the system refrigerant quantity needs to be judged again whether it is normal. Specifically, the value of the set temperature difference value can be 2°C. The value of the set temperature difference value can be adjusted and set according to the properties of the air conditioner, which is not listed one by one here. In this way, if the exhaust temperature of the compressor is small, less than or equal to the sum of the first preset system exhaust temperature and the set temperature difference value, the refrigerant quantity of the system is normal. At this time, the compressor, indoor fan, and outdoor fan are all stopped, the electronic expansion valve is opened, and the disassembly is completed and enters the standby state. It is conducive to better determine whether the system refrigerant is short of refrigerant, to remind to replenish refrigerant, and to ensure that the refrigerant quantity in the system is sufficient after disassembly.

[0102] Optionally, the air conditioner controls the electronic expansion valve to open, including: the air conditioner controls the electronic expansion valve to open at a third valve opening speed value, and the valve opening duration is a fourth duration. Specifically, the third valve opening speed value can be 10 steps / second. The fourth duration can be 25s. The values ​​of the third valve opening speed value and the fourth duration can be adjusted and set according to the properties of the air conditioner, which are not listed one by one here. In this way, the system refrigerant quantity is normal, the electronic expansion valve can be opened, the air conditioner enters the standby state, and the disassembly and assembly process is completed.

[0103] Optionally, the air conditioner controls the compressor to increase the frequency to a third frequency value, including: the air conditioner controls the compressor to increase the frequency to a third frequency value at a third frequency increase rate. Specifically, the value of the third frequency increase rate can be 10 steps / second. The value of the third frequency increase rate can be adjusted and set according to the properties of the air conditioner, which are not listed one by one here. In this way, if it is determined for the first time that the system refrigerant quantity is abnormal, the compressor frequency can be increased more quickly, which is conducive to more quickly entering the next time to determine whether the system refrigerant quantity is short of refrigerant.

[0104] Optionally, the air conditioner determines whether the amount of system refrigerant is normal or in short supply based on the exhaust temperature of the compressor and the second preset system exhaust temperature, including: when the exhaust temperature of the compressor is less than or equal to the sum of the second preset system exhaust temperature and the set temperature difference, the air conditioner determines that the amount of system refrigerant is normal. When the exhaust temperature of the compressor is greater than the sum of the second preset system exhaust temperature and the set temperature difference, the air conditioner determines that the amount of system refrigerant is in short supply. In this way, if the exhaust temperature of the compressor after frequency upgrading is less than or equal to the sum of the second preset system exhaust temperature corresponding to the exhaust temperature after frequency upgrading and the set temperature difference, the amount of system refrigerant is judged to be normal. If the exhaust temperature of the compressor after frequency upgrading is greater than the sum of the second preset system exhaust temperature corresponding to the exhaust temperature after frequency upgrading and the set temperature difference, the amount of system refrigerant is judged to be in short supply. This is conducive to better determining whether the system refrigerant is in short supply, so as to remind the replenishment of refrigerant and ensure sufficient amount of refrigerant in the system after disassembly.

[0105] Optionally, the air conditioner controls the operating states of the compressor, the indoor fan, and the outdoor fan to ensure sufficient refrigerant in the system according to whether the amount of refrigerant in the system is normal or insufficient, including:

[0106] When the amount of refrigerant in the system is normal, the air conditioner controls the compressor, indoor fan, and outdoor fan to all stop. The air conditioner also controls the electronic expansion valve to open, issues a prompt that the disassembly and assembly are completed, and enters the standby state. When the amount of refrigerant in the system is insufficient, the air conditioner controls the compressor, indoor fan, and outdoor fan to all stop, and issues a prompt that the system is insufficient.

[0107] In this way, if the amount of refrigerant in the system is normal, the compressor, indoor fan, and outdoor fan are controlled to stop, but the electronic expansion valve is opened to enter the standby state, and a prompt is given that the disassembly and assembly is completed. If the amount of refrigerant in the system is insufficient, the compressor, indoor fan, and outdoor fan are still controlled to stop, but the electronic expansion valve is not opened, and a prompt is given that the refrigerant is insufficient. This is conducive to better reminding whether the system is short of refrigerant, replenishing refrigerant or completing disassembly and assembly, and ensuring that the amount of refrigerant in the system is sufficient after disassembly.

[0108] Optionally, after controlling the electronic expansion valve to open to complete the disassembly and assembly and before entering the standby state, the method further includes: issuing a prompt indicating that the disassembly and assembly is completed. Specifically, issuing a prompt indicating that the disassembly and assembly is completed includes: controlling the display module to stop displaying "disassembly and assembly is in progress". More specifically, controlling the display module to stop displaying "disassembly and assembly is in progress" includes: controlling the display module to stop displaying the word "CZ".

[0109] Specifically, the air conditioner issues a prompt of system refrigerant shortage, including: the air conditioner control display module continuously displays the prompt of system refrigerant shortage. More specifically, the air conditioner control display module continuously displays the prompt of system refrigerant shortage, including: the air conditioner control display module continuously displays the words "F13". In this way, it is helpful to better remind the dismantler of the refrigerant shortage.

[0110] Optionally, the air conditioner controls the electronic expansion valve to open the valve, including: the air conditioner controls the electronic expansion valve to open the valve at a fourth valve opening speed value, and the valve opening duration is a fifth duration. Specifically, the fourth valve opening speed value may be 10 steps / second. The fifth duration may be 25s. The fourth valve opening speed value and the fifth duration may be adjusted and set according to the properties of the air conditioner, which are not listed here one by one.

[0111] In this way, when the amount of refrigerant in the system is normal, it is helpful to control the electronic expansion valve to open the valve faster, thereby helping to enter the standby state faster, complete the disassembly process, and improve the disassembly efficiency.

[0112] Optionally, controlling the operation of the compressor, the indoor fan, and the outdoor fan includes: controlling the indoor fan and the outdoor fan to operate at a high wind speed, and controlling the compressor to increase the frequency to the second frequency value at a fourth frequency increase rate. Specifically, the value of the fourth frequency increase rate may be 3 Hz / s. The value of the fourth frequency increase rate may be adjusted and set according to the properties of the air conditioner, which are not listed here one by one.

[0113] This will help to increase the operating frequency of the compressor more quickly, thereby helping to more quickly determine whether there is a refrigerant shortage.

[0114] Optionally, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the air conditioner continues to issue a reminder of disassembly and assembly. Specifically, the air conditioner continues to issue a reminder of disassembly and assembly, including: the air conditioner control display module continues to display disassembly and assembly. More specifically, the air conditioner control display module continues to display disassembly and assembly, including: the control display module continues to display the word "CZ". In this way, it is helpful to better issue a reminder of disassembly and assembly to the disassembler.

[0115] Optionally, after the air conditioner controls the air conditioner to operate in cooling mode and before adjusting the operating frequency of the compressor to the highest frequency, the air conditioner further includes: the air conditioner controls both the indoor fan and the outdoor fan to operate at a high wind speed.

[0116] This will help speed up the flow of refrigerant into the outdoor unit, thereby speeding up the refrigerant recovery of the air conditioner.

[0117] Combination Figure 3 As shown, the embodiment of the present disclosure provides another method for disassembling an air conditioner, comprising:

[0118] S301, in response to a disassembly instruction, the air conditioner controls the air conditioner to operate in a cooling mode, and the air conditioner controls the compressor to increase the operating frequency at a first frequency increase rate.

[0119] S302: When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increase rate.

[0120] S303: When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a second difference condition, or the operating frequency of the compressor reaches a maximum frequency, the air conditioner stops adjusting the operating frequency of the compressor.

[0121] S304, the air conditioner controls all electronic expansion valves to close, the compressor, indoor fan, and outdoor fan to stop, and the high-voltage mechanical switch to cut off power.

[0122] S305, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the air conditioner controls all electronic expansion valves to open and then close.

[0123] S306, the air conditioner controls the air conditioner to operate in cooling mode, and controls the operating states of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

[0124] The first frequency increase rate is greater than the second frequency increase rate.

[0125] By adopting the method for disassembling an air conditioner provided by the embodiment of the present disclosure, during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve, or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor can flow into the outdoor heat exchanger without flowing back to the compressor. First, the air conditioner is operated in the cooling mode, and the compressor is frequency-increased at a faster frequency-increase rate. If the difference between the total circuit current and the system's maximum frequency-limiting current meets the first difference condition, the compressor is frequency-increased at a slower frequency-increase rate until the difference between the total circuit current and the system's maximum frequency-limiting current meets the second difference condition, or the operating frequency of the compressor is increased to the maximum frequency. This is conducive to adjusting the operating frequency of the compressor to the highest frequency more quickly, allowing the refrigerant in the indoor unit to flow into the outdoor unit more quickly, increasing the speed of refrigerant recovery in the air conditioner, and is conducive to avoiding the total circuit current exceeding the system's maximum frequency-limiting current due to the compressor's excessive frequency. Control all electronic expansion valves to close, the compressor, indoor fan, and outdoor fan to stop, and the high-voltage mechanical switch to turn off the power. Disassemble the air conditioner so that the air conditioner can intelligently complete the recovery and power-off of the air conditioner refrigerant, reducing the operation steps of the disassembler. Since the high-voltage mechanical switch can realize intelligent control of the air conditioner power on or off, it avoids the safety hazard of the disassembler forgetting to turn off the power to disassemble the machine, making the disassembly operation simple, convenient, safe and reliable. When the air conditioner is disassembled and the high-voltage mechanical switch is powered on again, first control the electronic expansion valve to open, and then control the air conditioner to run in cooling mode. According to the exhaust temperature of the compressor, the operating status of the compressor and indoor and outdoor fans is controlled, which is conducive to better judging whether the system is short of refrigerant, so as to remind the replenishment of refrigerant and ensure the sufficient amount of refrigerant in the system after disassembly.

[0126] Combination Figure 4 As shown, the embodiment of the present disclosure provides another method for disassembling an air conditioner, comprising:

[0127] S401, in response to a disassembly instruction, the air conditioner controls the air conditioner to operate in a cooling mode, and the air conditioner controls the compressor to increase the operating frequency at a first frequency increase rate.

[0128] S402: When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increase rate.

[0129] S403: When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a second difference condition, or the operating frequency of the compressor reaches a maximum frequency, the air conditioner stops adjusting the operating frequency of the compressor.

[0130] S404, the air conditioner controls all electronic expansion valves to close, the compressor, indoor fan and outdoor fan to stop, and the high-voltage mechanical switch to cut off the power.

[0131] S405, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the air conditioner controls the electronic expansion valves to open and then close.

[0132] S406, the air conditioner controls the air conditioner to operate in cooling mode.

[0133] S407, the air conditioner determines whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be re-determined based on the exhaust temperature of the compressor and the first preset system exhaust temperature, and the first preset system exhaust temperature corresponds to the second frequency value.

[0134] S408: When the amount of refrigerant in the system is normal, the air conditioner controls the compressor, indoor fan, and outdoor fan to all stop.

[0135] S409, the air conditioner controls the electronic expansion valve to open to complete the disassembly and assembly, and enters the standby state.

[0136] S410, when the system refrigerant quantity needs to be judged again whether it is normal, the air conditioner controls the compressor to increase the frequency to the second frequency value, and determines whether the system refrigerant quantity is normal or short based on the exhaust temperature of the compressor and the second preset system exhaust temperature, and the second preset system exhaust temperature corresponds to the third frequency value.

[0137] S411, the air conditioner controls the operating states of the compressor, the indoor fan, and the outdoor fan to ensure sufficient refrigerant in the system according to whether the amount of refrigerant in the system is normal or insufficient.

[0138] The first frequency increase rate is greater than the second frequency increase rate.

[0139] By adopting the method for disassembling an air conditioner provided by the embodiment of the present disclosure, during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve, or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor can flow into the outdoor heat exchanger without flowing back to the compressor. First, the air conditioner is operated in the cooling mode, and the compressor is frequency-increased at a faster frequency-increase rate. If the difference between the total circuit current and the system's maximum frequency-limiting current meets the first difference condition, the compressor is frequency-increased at a slower frequency-increase rate until the difference between the total circuit current and the system's maximum frequency-limiting current meets the second difference condition, or the operating frequency of the compressor is increased to the maximum frequency. This is conducive to adjusting the operating frequency of the compressor to the highest frequency more quickly, allowing the refrigerant in the indoor unit to flow into the outdoor unit more quickly, increasing the speed of refrigerant recovery in the air conditioner, and is conducive to avoiding the total circuit current exceeding the system's maximum frequency-limiting current due to the compressor's excessive frequency. The electronic expansion valve is controlled to be completely closed, the compressor, indoor fan, and outdoor fan are stopped, the strong electric mechanical switch is powered off, and the air conditioner is disassembled, so that the air conditioner can intelligently complete the recovery and power-off of the air conditioner refrigerant, and reduce the operation steps of the disassembler. Since the strong electric mechanical switch can realize intelligent control of the air conditioner power on or off, it avoids the safety hazard of the disassembler forgetting to power off the disassembly, making the disassembly operation simple, convenient, safe and reliable. When the air conditioner is disassembled and the strong electric mechanical switch is powered on again, the electronic expansion valve is controlled to open first, and then the air conditioner is controlled to operate in the cooling mode. The compressor and indoor and outdoor fans are controlled to operate first, and then the refrigerant is judged to be normal for the first time according to the exhaust temperature of the compressor and the first preset system exhaust temperature. If it is normal, the compressor, indoor fan, and outdoor fan are all stopped, and the electronic expansion valve is opened. The disassembly is completed and enters the standby state. If the refrigerant is judged to be abnormal for the first time, the compressor is first frequency-upgraded, and then the refrigerant is judged to be short for the second time according to the exhaust temperature of the compressor and the second preset system exhaust temperature corresponding to the frequency after the frequency-upgrade. Then, the operating status of the compressor, indoor fan, and outdoor fan is controlled according to whether the refrigerant is insufficient. This is helpful to better determine whether the system refrigerant is insufficient, to remind the refrigerant to be replenished, and to ensure that the refrigerant in the system is sufficient after the machine is disassembled.

[0140] Combination Figure 5As shown, the embodiment of the present disclosure provides a device 200 for disassembling an air conditioner, including a first control module 501, a second control module 502, a third control module 503 and a fourth control module 504. The first control module 501 is configured to control the air conditioner to operate in a cooling mode in response to a disassembly instruction, and adjust the operating frequency of the compressor to the highest frequency. The second control module 502 is configured to control all electronic expansion valves to be closed, the compressor, the indoor fan, and the outdoor fan to be stopped, and the high-voltage mechanical switch to be powered off. The third control module 503 is configured to control the electronic expansion valves to be fully opened and then closed after the air conditioner is installed and the high-voltage mechanical switch is powered on again. The fourth control module 504 is configured to control the air conditioner to operate in a cooling mode, and control the operating status of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

[0141] By using the device for disassembling an air conditioner provided by the embodiment of the present disclosure, during the disassembly process, the disassembler does not need to manually operate the high-pressure valve and the low-pressure valve or manually cut off the power. By setting a one-way valve, the refrigerant in the compressor can flow into the outdoor heat exchanger and not flow back to the compressor. First, the air conditioner is operated in the cooling mode, and the compressor frequency is adjusted to the highest frequency to allow the refrigerant to enter the outdoor unit of the air conditioner. The electronic expansion valves are controlled to be completely closed, the compressor, the indoor fan, and the outdoor fan are stopped, the high-voltage mechanical switch is powered off, and the air conditioner is disassembled, so that the air conditioner can intelligently complete the recovery and power-off of the refrigerant of the air conditioner, thereby reducing the operating steps of the disassembler. Since the high-voltage mechanical switch can realize intelligent control of the power on or off of the air conditioner, the safety hazard of the disassembler forgetting to turn off the power when disassembling the machine is avoided, and the disassembly operation is simple, convenient, safe and reliable. When the air conditioner is disassembled and the high-voltage mechanical switch is powered on again, the electronic expansion valve is controlled to open first, and then the air conditioner is controlled to operate in cooling mode. The operating status of the compressor and indoor and outdoor fans is controlled according to the exhaust temperature of the compressor. This is conducive to better determining whether the system is short of refrigerant, so as to remind you to replenish refrigerant and ensure that there is sufficient refrigerant in the system after disassembly.

[0142] Combination Figure 6 As shown, the embodiment of the present disclosure provides a device 300 for disassembling an air conditioner, including a processor 600 and a memory 601. Optionally, the device may also include a communication interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other through the bus 603. The communication interface 602 may be used for information transmission. The processor 600 may call the logic instructions in the memory 601 to execute the method for disassembling an air conditioner of the above embodiment.

[0143] In addition, the logic instructions in the memory 601 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0144] The memory 601 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 600 executes the function application and data processing by running the program instructions / modules stored in the memory 601, that is, the method for disassembling the air conditioner in the above embodiment is implemented.

[0145] The memory 601 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory and may also include a non-volatile memory.

[0146] Combination Figure 7 As shown, an embodiment of the present disclosure provides an air conditioner 100, including: an air conditioner body, and the above-mentioned device 200 (300) for disassembling an air conditioner. The device 200 (300) for disassembling an air conditioner is installed on the air conditioner body. The installation relationship described here is not limited to placement inside the air conditioner, but also includes installation connections with other components of the air conditioner, including but not limited to physical connections, electrical connections or signal transmission connections. It can be understood by those skilled in the art that the device 200 (300) for disassembling an air conditioner can be adapted to a feasible air conditioner body, thereby realizing other feasible embodiments.

[0147] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for disassembling an air conditioner.

[0148] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0149] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0150] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0151] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0152] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. 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 units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0153] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for disassembling an air conditioner, characterized in that: The air conditioner includes: A one-way valve is provided at the outlet of the compressor and the exhaust pipe connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant after flowing into the outdoor heat exchanger does not flow back to the compressor; An electronic expansion valve is arranged between the indoor heat exchanger and the outdoor heat exchanger; A strong electric mechanical switch is used to control the power on or off of the air conditioner according to a signal; the method includes: In response to a disassembly instruction, the air conditioner is controlled to operate in a cooling mode and the operating frequency of the compressor is adjusted to a maximum frequency; Control all electronic expansion valves to close, the compressor, indoor fan, and outdoor fan to stop, and the high-voltage mechanical switch to cut off power; After the air conditioner is installed and the strong electric mechanical switch is powered on again, the electronic expansion valve is controlled to open completely and then close; Control the air conditioner to operate in cooling mode, and control the operating status of the compressor, indoor fan, and outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

2. The method according to claim 1, characterized in that Adjust the compressor operating frequency to the highest frequency, including: Controlling the compressor to increase the operating frequency at a first frequency increase rate; When the difference between the total circuit current and the system maximum frequency-limiting current satisfies a first difference condition, controlling the compressor to increase the operating frequency at a second frequency-increasing rate; When the difference between the total circuit current and the system maximum frequency-limiting current meets the second difference condition, or the operating frequency of the compressor reaches the maximum frequency, stop adjusting the operating frequency of the compressor; The first frequency increase rate is greater than the second frequency increase rate.

3. The method according to claim 1, characterized in that Control all electronic expansion valves to close, the compressor, indoor fan, and outdoor fan to stop, and the strong electrical mechanical switch to cut off the power, including: Control the opening of the electronic expansion valve; When the electronic expansion valves are fully opened, control the electronic expansion valves to close; When all electronic expansion valves are closed, the compressor is controlled to run; When the compressor operation time reaches the first time length, the compressor, the indoor fan and the outdoor fan are controlled to stop, and the high-voltage mechanical switch is controlled to cut off the power.

4. The method according to claim 1, characterized in that Control the electronic expansion valve to open and then close, including: Control the opening of the electronic expansion valve; When the electronic expansion valve is fully opened, the electronic expansion valve is controlled to close.

5. The method according to claim 1, characterized in that According to the exhaust temperature of the compressor, the operating status of the compressor, indoor fan, and outdoor fan is controlled to ensure sufficient refrigerant in the system, including: Control the operation of compressor, indoor fan and outdoor fan; Determining whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be re-determined based on the exhaust temperature of the compressor and the first preset system exhaust temperature, the first preset system exhaust temperature corresponding to the second frequency value; When the amount of refrigerant in the system is normal, the compressor, indoor fan and outdoor fan are all stopped, and the electronic expansion valve is opened to complete the disassembly and assembly, and enter the standby state; When the system refrigerant quantity needs to be judged again whether it is normal, the compressor is controlled to increase the frequency to the second frequency value, and the system refrigerant quantity is determined to be normal or insufficient based on the exhaust temperature of the compressor and the second preset system exhaust temperature, and the second preset system exhaust temperature corresponds to the third frequency value; based on whether the system refrigerant quantity is normal or insufficient, the operating status of the compressor, indoor fan and outdoor fan is controlled to ensure sufficient system refrigerant.

6. The method according to any one of claims 1 to 5, characterized in that: After controlling the air conditioner to operate in cooling mode and before adjusting the operating frequency of the compressor to the highest frequency, the method further includes: Control the indoor and outdoor fans to operate at high wind speed.

7. A device for disassembling an air conditioner, characterized in that: The air conditioner includes: A one-way valve is provided at the outlet of the compressor and the exhaust pipe connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant after flowing into the outdoor unit does not flow back to the compressor; Electronic expansion valve; A strong electrical mechanical switch, used to control the power on or off of the air conditioner according to the signal; The device includes: The first control module is configured to control the air conditioner to operate in a cooling mode and adjust the operating frequency of the compressor to a maximum frequency in response to a disassembly instruction; The second control module is configured to control all electronic expansion valves to be closed, the compressor, the indoor fan, and the outdoor fan to be stopped, and the strong electric mechanical switch to be powered off; The third control module is configured to control the electronic expansion valves to open and then close completely when the air conditioner is installed and the strong electric mechanical switch is powered on again; The fourth control module is configured to control the air conditioner to operate in a cooling mode, and to control the operating states of the compressor, the indoor fan, and the outdoor fan according to the exhaust temperature of the compressor to ensure sufficient refrigerant in the system.

8. A device for disassembling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for disassembling an air conditioner according to any one of claims 1 to 6 when running the program instructions.

9. An air conditioner, characterized in that: include: The air conditioner body includes: a one-way valve, which is arranged at the outlet of the exhaust pipe connected between the outdoor heat exchanger and the four-way valve and the compressor, so that the refrigerant flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve, which is arranged between the indoor heat exchanger and the outdoor heat exchanger; a strong electric mechanical switch, which is used to control the power on or off of the air conditioner according to the signal; The device for disassembling an air conditioner as described in claim 7 or 8 is installed on the air conditioner body.

10. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for disassembling an air conditioner as described in any one of claims 1 to 6 is executed.

Images